A58T electro-hydraulic numerical control bending machine numerical control device

The hydraulic bending machine comprises a bracket, a working table and a clamping plate, the working table is arranged on the bracket, the working table is composed of a base and a pressing plate, the base is connected with the clamping plate through a hinge, the base is composed of a shell, a coil and a cover plate, the coil is placed in the depression of the shell, the top of the depression is covered with a cover plate. When in use, the wire is energized to the coil, and after energized, the pressure plate generates gravity, so as to realize the clamping of the thin plate between the pressure plate and the base. Because of the use of electromagnetic force clamping, so that the plate can be made into a variety of workpiece requirements, and can be processed on the side wall of the workpiece. Today, Sheng film Xiaobian to talk to you about the lifting and installation of hydraulic bending machine:

1, DA58T electro-hydraulic numerical control bending machine center is higher, before the weight after light, so in the lifting and handling and installation process must pay attention to the center position, so as not to cause the machine to turn over accident, lifting, lifting steel wire Angle as small as possible, how much the bending machine, the accuracy of the machine is the same.

About electro-hydraulic numerical control bending machine, 2 columns in working mesa to gauge the benchmark level, vertical and horizontal direction shall be less than or equal to 1000:0.2, the price of the bending machine, according to the foundation diagram pre-made, install the hydraulic sheet metal bending machine, based on the loaded anchor bolt at the same time, Zui after grouting, after being all cement solidification, set bolt, proofreading.

How to avoid plate indentation during the operation of the bending machine

Bending machine is one of the commonly used sheet metal equipment. However, in the process of bending, affected by the mold, bending pressure and other factors, the folded plate will often produce indentation, Zhenjiang bending machine, especially aluminum plate and stainless steel plate is more likely to produce indentation. These indentations can affect the appearance of the product.

To avoid or reduce these indentation, many manufacturers opt for a secondary process, sold by a bending machine, then polished again after bending or painted the sheet. Some manufacturers will be before bending plate coating, so as to avoid indentation. However, these operations are not only time-consuming and labor-intensive, but also ineffective. Next, Sheng Membrane Xiaobian provides you with two solutions.

The solution

1. Roller V-type die

The main working principle of this mold is that the upper die falls, the rotating shaft rotates, and the turning plate is turned over. It is because of the turnover of the plate that the workpiece and the lower die fully contact, without any sliding range, to avoid indentation.

2. Replacement of rubber strip V mold

The principle of the die is to open a gap on both sides of the commonly used V-shaped die, and insert a rubber strip in the gap. In the bending process, the sheet metal comes into contact with the rubber strip. The hardness of the rubber strip is much lower than that of the ordinary die, so as to avoid indentation.

Electro-hydraulic servo hydraulic bending machine is mainly composed of lathe bed, control system, hydraulic system, the system, mold and compensation mechanism behind parts, such as exercise for the lift (hydraulic drive system in the above, drive the slider moves up and down, the fixed workbench), its complex structure, high precision, equipment safety adopted double protection. So what are the technical characteristics of the electro-hydraulic servo hydraulic bending machine?

1. Closed-loop control: the main oil cylinder on both sides adopts electro-hydraulic servo valve and grating ruler to form a closed-loop control synchronously. The feedback is accurate and the sliding block is running accurately, so that the bending accuracy and the sliding block positioning accuracy are high. .

2, V-axis hydraulic compensation: solve the slider in the process of bending deformation on the quality of the workpiece influence, compensation by the numerical control system automatic adjustment, convenient and accurate.

3, rear stopper mechanism: can choose to control a plurality of rear stopper shaft, the configuration of the functional components, the accuracy of the stopper. The body of steel plate welded structure: after annealing and vibration aging treatment, the deformation caused by welding stress and processing stress can be eliminated, and the accuracy of machine tool can be maintained.

4, hydraulic system: the use of integrated control system, reduce pipeline installation, improve the working stability of the machine, beautiful and simple appearance.

The main content

1. Introduction to the main performance of DA58T system

2:DA58T system port introduction

3. DA58T system diagnostic function operation

4. PLC import operation of DA58T system

5: Meaning of Y-axis parameters of DA58T system

6:DA58T system manual interface operation and common faults

7. Introduction to PLC diagnosis and curve acquisition of DA58T system

8:DA58T system auxiliary axis :X,R, common faults during the explanation and debugging of disturbance compensation parameters

9:DA58T system parameter backup, system upgrade and underlying installation

DA58T Performance Introduction

LDA58T is a touch screen numerical control device based on Delem-Linux. It has shorter startup time cycle, more convenient operation and debugging, and is a high performance bending machine control device.

L15 inch TFT touch screen with 1024*768 resolution.

LDA-58T numerical control system has DELEM two-dimensional graphic programming design tool, convenient for numerical control programming. With the function of automatic calculation of bending process, the machine adjustment and testing work can be reduced to a minimum.

L CNC system adopts the first new technology, high flexibility, convenient operation. USB interface provides quick backup of products and molds.

L Advanced Y axis control algorithm, can control closed loop valve, also can control open loop valve, servo control, frequency conversion control and AC motor control

L The basic configuration of the system is the Y1-Y2-X-R axis, and the R axis can also be used as the Z or X2 axis. The table deformation compensation function is standard.

L Mold library :30 upper molds /60 lower molds, material library and product library

L Storage capacity 1G, 21 languages

L Main pressure control, - integrated valve amplifier

L Multi-machine linkage function,- network mode double machine linkage.

L Built-in PLC function, can modify and monitor signal flexibly.

L Diagnostic program and real-time curve analysis function

L Secure PLC support/interface.

L Support Profile-T, OEM soft key panel production.

General wiring diagram of DA58T system

DA56S back interface

Wiring matters needing attention :(the wiring point of customer's own wiring)

• 5,6 and 13,14 proportional servo-valve outputs for Y1 and Y2

• Pin 15# in Analog -B of the system is the enabling input terminal of valve amplifier. If you need to use the built-in valve amplifier of the system, welding +24V is required to be added to this terminal.

Wiring point of proportional servo valve on the machine tool:

For the black plugins for system I/O point wiring, please refer to the drawing for corresponding wiring.

This plug-in is connected to +24V in red port and -24V in blue port.

The first column of interfaces can be input or output.

The second through fourth columns have 12 outputs and 12 inputs.

• Pins 1 and 2 are X axis analog output

• Pin 9 and 10 are R-axis analog output

• 11, 12 and 13 are potentiometer feedback for mechanical compensation

Wiring Diagram of Valve Group Coil on the Machine Tool:

Cautions for wiring :(where wiring is needed after wiring is completed)

• This interface on the system is the power interface, and the wiring is provided by our company. 

• System power CN2: DC24V

24 v, 2 feet

0 v, 5 feet

Valve cable connector. CN2

• The grating ruler connecting cable is matched by our company. The 9-core plug of the grating ruler connecting wire at Y1 is connected to CN5 of the system, and CN24 is connected at Y2.

• 5V and 12V differential encoders

• Frequency 1M Hz

4CN9,CN12:

• Servo drive encoder plug is also equipped by our company, X axis is connected with CN6, R axis is connected with CN24.

CN7 is RS232 interface, mainly external safety PLC.

CN16 is the port. The system can be connected through the network port, network monitoring system running status.

Precautions before power on:

Be sure to turn off the power when installing and wiring. It is strictly prohibited to unplug the port plug of the system on line.

Before power on, please make sure the main circuit, system power supply, ground wire, input and output lines are connected correctly and reliably. The power supply and input and output terminals of this system are DC24V. Access to AC signal is strictly prohibited.

Unplug the power plug of the system, and then disconnect and plug in the power plug of the system after determining the correct power supply.

5. Make sure the grating ruler Y1 and Y2 are not inverted. (For example, the slider returns to the upper dead point, and the detection head of the grating ruler is close to the black magnetic strip, as shown in the figure below)

When the system is first powered on:

Check the line correctly. Turn on the main power and control the power supply. Use a multimeter to determine whether the 380V main electricity is out of phase.

When the system starts up, the following figure is displayed.

3 The system is powered on for the first time, and the display is in English. You can change it to Chinese in "Settings".

4 Click on the top of the touch screen

, the system will pop up a soft button. Enter the corresponding rank password

Zero level password 741

First level password 14753

Second password 32157

Three-level password 25789

Different password level, the corresponding password permissions are different.

Introduction to the system diagnosis interface:

• Diagnostic interface:

• Digital input signal: the external signal or input port can be judged by the change of its state

• Digital output signal: you can use your finger to click the corresponding output port to force output to test whether the port and external circuit are normal.

• 1A,1B,2A,2B monitor analog inputs.

• Outan1 Outan2 is the analog output port of the servo shaft, and the value of ±4096DA can be added here. The corresponding port will output ±10V voltage. At this time, the corresponding motor should operate at different speeds according to the output voltage, and the corresponding encoder interface will have feedback signal changes.

• OFFAN1-OFFAN2 is the zero adjustment of the output port of the servo shaft analog quantity, which can be used to correct the zero drift of the servo motor. This value will not disappear after exit the diagnostic interface.

• ENC1-ENC4 corresponds to feedback signals of Y1, Y2 grating ruler, X axis and R axis encoder of servo motor respectively. Through these feedback signals, the correctness of counting direction can be judged to prevent the occurrence of flying car.

, left offset, right offset can control the left and right sides of the proportional servo valve of two-way open closed, or so the compensation can be zero calibration valve, pressure valve can offset by DA value change output current corresponding to the main pressure valve, through the pressure gauge can be directly observed the change of the main pressure, in this way can be convenient for pressure calibration.

• The slider can be manipulated up and down by left and right valve offset, pressure valve offset and related on/off valve action.

Diagnostic interface operation slider action

Check the wiring and test whether all input and output signals are correct by comparing the wiring drawings on site.

2. When starting the oil pump motor for the first time, please start it several times (make sure that the direction of the wind blade of the oil pump motor is consistent with the direction marked on the oil pump). If the motor runs in the opposite direction for a long time, the oil pump will be damaged. If the oil pump is installed on the oil tank, make sure that the oil pump has drained.

3 Pressure calibration:

Connect the oil pressure gauge to the M1 port of the pressure valve set and select "Pressure Valve Bias" to increase the DA value. Record the DA value for 1-25 or 28MP. The finer the table is, the more accurate the system output pressure is. 1 mp = 10. If the DA value is increased to more than 100, there is no pressure on the pressure gauge. First, check whether the line is connected wrong and whether the system has an output signal. 1500mA =255DA value, also can be measured on the multimeter measuring terminal P+,P- about DA value added to 255, the measurement of DC voltage will increase to about 8V points, the measurement current is 1500mA. Make sure there is a signal, that is the valve set problem:

• Therefore, the possible causes of this problem are :1) the pressure block stuck valve; 2) Something is wrong with the pump.

• Priority to judge the pump is not a problem, can be detected by the oil suction port or oil outlet, with the hand block, the oil suction port or oil outlet should be built with pressure, to determine that there is no problem.

• It is troublesome to detect hydraulic problems, and then determine the stuck valve problem, remove the two-position cartridge valve spool of the pressure valve for cleaning.

Diagnostic interface action slider:

• return:

• Select -20% or -40% for the left and right valve bias, and increase the pressure bias DA value. It is generally observed that when the pressure of the pressure gauge is increased to more than 10MP, the slider will go up and back.

Under the fast:

• Set the left and right valve offset by 20% or 10%, and set the output 2#(fast down) point high. The slider is going to go down. (The oil pump can not be started here, and the slider runs down by its own weight)

• work in:

• Set the left and right valve bias to 10%, set the output 1#(slow down) point to 1, and slowly increase the DA value of the pressure valve bias, and the slider will slowly go down.

• Drag the progress bar to quickly open the opening ratio with bias opening here.

Problems with diagnostic operations:

• There is no return trip on either side of the A slider. Determine if there is a problem with the wiring.

• Measure the analog value of the system output on the terminal +-10V corresponding to +-100% of the left and right bias. The voltage of feedback signal and output signal is opposite to -+ 10V. If there is no voltage on the measuring terminal, it may be that the 24V line at A and B points of the proportional servo valve aviation plug is not well welded or the system plug is spot welded wrong.

• If there is voltage, but increase or decrease the left and right valve offset %, the voltage but no change indicates that the proportional servo valve is stuck, to remove the valve cleaning.

• The other possibility is that the slider is too heavy or the mechanical resistance is too high. You should set the left and right bias to -40%, or increase the pressure bias even more. Be careful not to exceed the DA value corresponding to the designated maximum pressure.

• B slider can go up and down on one side and not go up or down on the other side or not go up and down smoothly. First of all, the main fixed side of the line is also on (above).

• Secondly, check the side of the slider with problems to loosen the bolts behind the guide rail and add some lubricating oil.

• The C slider can go up but not down. Make sure there is no problem with the line, that is, the oil return port of the lower chamber of the cylinder does not return to the tank. At this point do not move, check the oil line.

• Check the counting problem of the grating ruler.

• A Press the slider of the grating ruler by hand to make sure that the Y1 side corresponds to the ENC1 side and the Y2 side corresponds to the ENC2 side. If the CN10 and CN14 two-port plugs at the back of the system can be replaced.

• B Watch the slider go down and the two counts increase. When the slider is on top, the two counts are decreasing.

• For example ENC1 and ENC2 count one big and one small. Enter the parameter A feedback of AY axis on the machine parameter interface and change the counting direction of Y1 and Y2.

• When the C slider is near the top dead point of the return trip, observe whether the slider of the grating ruler passes through the center of the black magnetic strip (the reference point). If it passes through ENC1 or ENC2, it will be blackened, indicating that the reference point can be found. If the installation size is limited, the black magnetic stripe can be moved with the small inner hexagon self-equipped in the grating ruler packaging, which must be moved at a distance of 50mm. If it is not moving 50mm, the grating ruler will not detect the origin. It is recommended that the length of the connecting rod of the grating ruler should be adjusted to ensure that the reference point can be found at the same time on both sides of Y1 and Y2 when the return trip is made.

1 Diagnostic interface slider can normally fast down, return and work. Routes and valve sets representing machine tools have no problems.

2. Now enter the system parameters interface -- >; When the parameters of Y axis are initially set, the parameters will be optimized after there are problems with the slider actions in the later debugging.

PLC introduction, the specific operation steps:

Click the folder icon at the top of the system,

The system will pop up the folder menu.

Select the Configuration/DELEME/ folder where there is already a Machine folder (Machine tool parameters folder).

Click "Create directory" here to create a new Sequencer folder.

Then plug the edited PLC file U disk into the USB interface of the system, select Sequencer. TXT (edited PLC file) of USB Hid Disk and click "Copy".

Select the newly created Sequencer and click "Paste".

PLC copy is good, click "end" after the system will restart, the import of PLC will take effect.

After reboot, if PLC compilation is wrong, the system will report an error.

As in PLC line 23 in the above figure, there is an error in editing.

PLC import of this system, if there are errors in the PLC editing and modification can only be operated in the system in the soft key.

Keyboard operation using USB interface is invalid.

In the imported PLC, program editing.

Specific path is the Configuration/DELEME/Sequencer/Sequencer. TXT click "open". Can display the program has been imported, program changes can be edited by the following soft button.

Meaning of machine tool parameters

Total Parameters - Total:

• Service line --------------------------- -- displays system status

• Name of machine tool --------------------------- Name of machine tool can be customized.

• USB memory program device -------------- turn on this parameter, the system starts up to read PLC files from the U disk.

(Select Close here)

• Lock mode ----------------------- Password/Process entry.

• Allow network features----------- Open.

Total parameters - machine tool:

• The total length of the machine -------------------- The maximum folding plate length allowed by the machine.

• Length between lines ------- Distance of grating ruler installation on both sides of machine tool. 

• Distance between the column of the machine tool ------------- Distance between the center of the two cylinders of the machine tool.

• The inertia of the workbench --------------------- The parameters determine the calculation of the compensation.

• The inertia of the slider ------------------------ determines the calculation of the nullage compensation.

, a strong steel -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- - this parameter xie automatic calculation value of the loadings.

, stiffness of machine tool structure -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- - the parameters for 20, the best ratio of impact bending depth calculated value.

Total parameters - Mold:

The reference distance between the molds ------------- indicates that the distance of the starting position of the upper and lower molds is measured when the cylinder returns to the top. It directly affects the calculated value of the bending position of the slider.

Total parameters -PLC preset switch:

PLC preset switch for internal programmable internal relay, ON for open, OFF for off. Usually through this internal switch to achieve specific functions, such as automatic running machine, etc.

When the system m-option1off is changed to on, and the PLC program M_OPTION1 is changed to M_OPTION1_on, this point can take effect.

Y-axis parameter - Overall:

• Select KO platform ------------------- and select KO table here (7001 Bosch valve, 7002 Rexroth valve, 7017 Helbik valve, select the corresponding KO table according to the valve set paired with the machine tool, and this parameter must be set before entering the diagnostic interface)

• The minimum value --------------------- indicates the soft limit where the slider returns to the upper limit.

• Maximum --------------------- Maximum stroke length of the cylinder

• Direction ------------------ The slider runs counting directions

• Y1Y2 maximum difference ---------- Y1Y2 allowable parallelism adjustment difference

, Y find reference speed -- -- -- -- -- -- -- -- -- - slipper boot to find the speed of the reference point (the set speed with best return) linkage -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- double machine can make linkage function

• Maximum braking time ---------- Safety detection time of slider braking time when starting up.

• Zero-setting of servo valve ------------ This parameter only works for Boxer - Rexroth valve. After opening it, the spool zero can be directly adjusted on the manual operation interface.

The resolution of the grating ruler --------------- 5um grating ruler scale.

Y1 reference point -------------- Adjust the position of Y1 reference point. Y2 reference point -------------- Adjust the position of Y2 reference point. Note: usually the position of the reference point is the position of the black bar of the grating ruler.

The Y1 counting direction ------------- is used to change the Y1 counting direction. The Y2 counting direction ------------- is used to change the Y2 counting direction.

Y-axis reference searching speed ----------- the speed when the slider starts to look for the reference point (this speed had better be consistent with the return speed setting).

Parallel switch ------------------------ whether the parallel detection switch of the slider is installed.

Pressure valve:

• Proportional pressure control mode --------- main pressure valve control mode, should be selected current (current control mode).

• Minimum working pressure ---------------- Minimum working pressure of the machine tool.

• Pressure calibration ---------------------- for the main pressure calibration. (When this parameter is turned on, the system does not automatically calculate the pressure, so manual input is needed)

• Maximum ------------------------- tonnage of machine tool. (For example, when KN is displayed, the machine tool pressure can be selected as T in the programming constant)

• Pressure calibration ---------------------- Opening slope of pressure valve.

Click the edit table, and the system will display the pressure value table. The following figure

Where 10 bar =1 MPa, the DA value diagnoses the increase in the interface pressure bias. (Fill in the value of the pressure calibration record)

Y-axis parameters (fast down)

• Maximum operating speed -------- faster running speed of the next stage slider.

• Accelerate from 0 to maximum -------- The time required to accelerate from 0 to maximum speed at fast speed.

• The time required for the speed to decelerate from the maximum speed to the stop state when the speed stops.

• Proportional gain ---------- ----- Fast proportional gain in the next stage affects the response speed of slider action. This value is set too large, fast will shake.

• Speed feedforward braking value -------- This parameter affects the brake slope when the bad block stops. If it is too small to the high speed point, it will be slow, and if it is large, it will be fast.

• Speed feed forward gain ----------- This parameter determines the degree of proximity between the actual speed and the theoretical speed, the larger the closer.

• Parallelism gain ------------ Y1, Y2 parallelism gain, the larger the difference will be smaller but will affect the overall speed.

• Deletion before closing ------------- This parameter is that the system will first open the lifting valve before fast setting, and then open the servo valve after a period of delay to make the slider go down.

• Quiet position when withdrawing -------- The difference value of the position of the shift point is sent out in advance, so that the slider can reach the shift point quickly.

• Folding error range ----------- Folding error range of actual curve and theoretical curve

Work progress (slow down):

Maximum operating speed ------ Maximum operating speed in the process stage.

Proportional gain ------------ Proportional gain during labor, affect the response speed of the slider.

Integral gain ------------ Integral gain in work, it takes effect when close to the bottom dead point, to ensure that the slider can reach the bottom dead point in any case, the value is too high, there will be overshoot phenomenon.

Speed feedforward braking value ------- This parameter affects the brake slope when the bad block stops. If it is too small to the high speed point, it is slow and if it is large, it is fast.

Speed feedforward gain ---------- Y1, Y2 parallelism gain, the bigger the difference is smaller but will affect the overall speed.

Parallelism gain ------------- Y1, Y2 parallelism gain, the bigger the difference is smaller but will affect the overall speed.

Delay before work -------------- This time parameter is that the system first closes the flushing valve before work, and then opens the servo valve after a period of delay.

Positioning allowable error ------------- This parameter represents the advance of entering the pressureholding state in advance, which can make the slider reach the pressureholding stage quickly, but it will affect the positioning accuracy.

Unloading:

The value of feeding friction and feeding speed are obtained as follows:

Since the value of feeding friction and feeding speed are obtained, the following error will be simplified in the unloading process.

Default values are assigned to these parameters during normal slider movement. A simple following error will shorten the work cycle.

To adjust these parameters correctly, it must be done under working pressure, so it must be done when there is a material plate.

Delay after decompression:

Measure the time from pressure off until slider action stops, and enter this value into the parameter "Delay after unloading".

Pressure delay:

If the slider has a short "jump" when the pressure is off, adjust the "Pressure Delay" parameter to avoid this.

Return:

• Delay before return journey ---------- When the system gets return journey command, first open the flushing valve and wait for a period of time before opening the servo valve to pressurize return journey. This parameter is the waiting time.

• Pressure ------------------- This parameter is the system pressure output during the return trip, and is the percentage value of the maximum pressure. The setting should be as small as possible, as long as the slider can return normally, too large will lead to jitter during the return trip.

• UDP position removal ------- The system can send out the upper dead point signal to stop the slider action in advance during the return trip. This value is the advance quantity value, which is negative.

Operation in manual mode:

When entering the manual interface, make sure the slider is below to prepare for the Y-axis reference search. (Y-axis parameter search is from bottom to top). If the slider is not below, please put the slider below in the diagnostic interface.

If the X axis is not debugged, please turn the X axis enable off to prevent flying.

In manual mode, the user sets the parameters of a bending.

1. Choose the upper and lower mold sizes for actual installation of the machine tool.

Click in the machine tool, edit the upper and lower molds according to the actual mold size, and select the mold number.

Upper die library:

Writing of the upper mold:

Main parameters of upper die:

Height. H Mold Height.

Important: This height value will be used to calculate the bending depth.

Angle a The Angle of the tip of the die.

The radius Angle of the upper module of radius Ra.

This parameter must be used, only as a selection flag, and its value will not be used in the calculation formula.

Impedance R The maximum force that can be sustained by the upper mold, in kN /mm

Writing of the next mold:

Height H: Height of lower die.

Important: This height value will be used to calculate the bending depth.

V opening width W

V opening of the lower die: the width of the V opening is the distance between the extension line of the lower die's beveled edge and the cross line of the horizontal contact surface.

The lower mode impedance should be set larger, otherwise the system will report "D0266 programming pressure > Lower die strength ".

Angle alpha lower die Angle.

Radius The radius of the edge of the V-shaped opening on RA.

The velocity transformation point M

Speed converts distance. The distance from the sheet upwards to the point of velocity transition.

X-axis safety region SN

Calculated safety zone, the minimum X-axis value, which is used when the R-axis is installed. It is used to prevent fingers from colliding with the lower die. The minimum value displayed is automatically calculated by the system according to the size of the lower mold.

X- Safe Zone = FS + 1/2 V

Where :FS = flat segment at the back of V-grove

V= the number of openings

In the above formula, the system also adds a small safety value (0.5 mm).

Manual interface (Y-axis reference search)

1 set the type of plate to be processed: 1 iron plate, 2 aluminum plate, 3 galvanized plate and 4 stainless steel plate.

Input the thickness of the processed sheet.

Input the length of the processing sheet.

4. Select 0 free bending and 1 bottom bending. (Please select 0 for free bending)

Calibration Angle is set to 0.

6 Angle is first set to 180 degrees.

7. Select the upper left corner of manual interface

, modify the data, the system will automatically update the calculation data.

If you choose to

, the system needs to manually refresh the data. Select in the Soft Keys panel

Refresh sequentially.

The following values of Y1-axis, Y2-axis, speed conversion point, pressure, and disturbance compensation for later debugging will be automatically calculated and updated. Remember to change any data above Y1-axis (the position of Y axis is related to the height of upper and lower molds, the V opening, the minimum and maximum value of Y axis, the reference point between molds and other parameters, please refresh and recalcate after the change).

8. Set the return trip (the return height of the slider folding plate), the speed (the speed when it is slow down), the unloading speed and the pressure holding time.

9 Press the system

Start button, the slider will automatically go up (look for the reference point) if there is an abnormal situation in the middle, you can also press the system

Stop button, the slider will terminate the operation. If you normally find the reference point, you can observe the Y1 at the top of the manual. The value of Y2 is close to the set Y axis parameter - total - the minimum value set by Y axis, such as 10mm, which is a little smaller.

10 Step on the foot, the slider will go down. If the Y-axis search is not found, the slider will not move.

11 Observe whether the whole action of the slider runs normally. Observe the status of the top of manual interface: 1 idle, 2 fast down, 3 total (slow down), 4 pressure holding, 5 unloading and 6 return trip. Where the state is, it represents that the system has sent out this signal, so as to enter the parameters in the machine tool parameters to optimize this state. If the action of the slider is wrong here, check the PLC of the system and optimize the parameters of the diagnostic interface, so that the movement of the machine can reach the best.

12 can go into the curve and figure out where the problem is.

13. You can enter the PLC diagnostic interface to determine which signal is not on.

In programming Settings, enable Y1/Y2 not only. The manual screen will display Y1, and the value of Y2 is shown in the figure on the right. When it is closed, the manual screen will only display Y axis.

1 in Settings/Programming Settings/will Y1/Y2 not associated with this enable turned on. The manual screen will display Y1, and the value of Y2 is shown in the following figure.

Return trip :(the initial value is 0, which should be set manually)

This parameter results in a certain gap between the upper and lower dies after the bending is completed. A positive value indicates the clearance opening above the velocity transition point, and a negative value indicates the clearance opening below the velocity transition point. When processing time for an artifact is required, the user can set a small positive or negative value.

X axis (at the beginning, it is better to disable X axis in the auxiliary axis, and the manual interface will not show X axis after system reboot)

Edit rear stopper position.

Concession DX

The retreat distance of the rear stopper during bending. The rear stopper retreat is activated in the clamping position of the sheet.

Additional shafts. R/ disturbance compensation

If the system is equipped with one or more additional axes, such as the R axis, the disturbance compensation value, the parameters of the relevant axis are shown here.

Pressure P

The pressure needed in the process of work is calculated automatically by the system. The pressure is pre-calculated by the system based on the bending characteristics, including material type, thickness, bending depth and V-opening of the lower die.

Speed. (To be set manually)

This parameter is the work speed of the machine tool.

Holding time T The pause time of the upper die at the bending point.

Unload distance DC

The unloading stroke after the completion of bending is used to release the working pressure.

Unloading speed BS(to be set manually)

The unloading speed can be programmed to be active in the process of the set unloading stroke.

Parallel Y2

The difference between the left and right cylinders (Y1, Y2). When the value is positive, the right cylinder is low. When the value is negative, the right cylinder is high. The set value is valid below the clamping point.

Problems that will occur in the movement of the machine tool:

If the action of the slider is not good here, the action curve of the machine tool can be collected for analysis.

If some machine signals are wrong, you can open the PLC diagnosis for signal monitoring.

Can enter the PLC diagnostic interface to determine which signal is not through.

Click the PLC diagnosis in the figure above, and then select the PLC program segment to be monitored, and click the display window.

2. In the manual interface, press the button below corresponding to PLC test, and the PLC file display screen will appear, as shown in the figure above.

Use the up and down arrow keys and confirm keys to select the program segment to be monitored.

The monitor segment is displayed at the top of the screen. This point is high (TRUE 1 status)

• You can go into the curve and figure out what the problem is.

First click "record" and step on the slider to make the entire trip.

Click Analysis again to open the running curve of the slider.

In addition, you can also choose other axis of the running trajectory curve analysis.

Click the sampling icon to start the analysis program, run a loop of slider action, and you can see the real-time state curve of action operation.

Through analyzing the curve, we can get the following information:

1. Operation state of proportional servo valve

Operation state of proportional pressure valve

3Y1, Y2 slider running speed, position,

4 Machine status (stop, fast down, work forward, pressure holding, load reduction, return)

5 Slider running reference curve, actual error

6 Digital input and output port status

Operating state and reference curve of servo shaft

8 Analog feedback signal state (pressure sensor, compensation potentiometer, etc.)

We can debug the machine tool through the above information, judge the fault, test the machine performance.

We provide offline analysis software that allows you to check curves on your personal computer. 

First, find the software installation package of DA58T system and click the following figure. Be available in your personal electricity

Install curve analysis software in your brain.

DA58T analysis software icon.

In the following figure, find the backup curve path and open it.

Press the key corresponding to the shaft position under the manual interface to enter the inching interface.

Point moving interface

Debugging the machine tool and installing the upper and lower molds. At this time, the Y axis will be used when installing the mold and closing the mold.

1. Reduce the value of the speed conversion point of the manual interface artificially (for example, the system automatically calculates 107 and changes it to 90). Step down and make the slider move to the position of 90 and then it will be in the slow state. The slider will stop. Push the button on the electric cabinet to the "adjust" position.

2. Select the Y axis, and press the start button of the system, then press the left and right keys of the system to move the Y axis. You can also select Y1 or Y2 axis, which can be moved separately.

If other shafts are debugged well, they can also be moved in this interface. But there is no need to step on the pedal signal and change the speed of the manual interface change point.

Trial folding sheet material:

1. After the upper and lower molds are installed, set the dimensions of the upper and lower molds for actual installation. The Angle should be set to 180 degrees first. The system will recalculate the travel of Y axis according to the height of upper and lower modules.

2 step on the foot, pay attention to observe whether the upper die is pressed on the lower die notch (do not crush the notch, when approaching the lower die notch, loosen the foot or press the system stop button in time). The reference point distance between the molds in the total parameter should be adjusted. The higher the value, the more the slider goes down. The smaller the setting, the vice versa. Step on the empty foot and adjust the slider to the bottom dead point near the upper plane of the lower die. Small plate can also be placed on the lower die, pressed to the sheet material, the sheet material can not be deformed.

3. After the upper and lower molds are installed, set the dimensions of the upper and lower molds for actual installation. The Angle should be set to 180 degrees. The system will recalculate the travel of Y axis according to the height of upper and lower modules.

2 step on the foot, pay attention to observe whether the upper die is pressed on the lower die notch (do not crush the notch, when approaching the lower die notch, loosen the foot or press the system stop button in time). The reference point distance between the molds in the total parameter should be adjusted. The higher the value, the more the slider goes down. The smaller the setting, the vice versa. Step on the empty foot and adjust the slider to the bottom dead point near the upper plane of the lower die. Small plate can also be placed on the lower die, pressed to the sheet material, the sheet material can not be deformed.

4. Set the Angle of manual interface as 90 degrees, put the small sheet material of 100*100 under the cylinder of Y1 and Y2, and correct the Angle error at Y1 and Y2. In system parameters - >; Y axis parameter a feedback menu in Y1, Y2 reference point. The larger the value, the smaller the distance to go down on one side. (If the Angle of the folded sheet material is large, the value will be reduced, about 7 silk is 1 degree. If the Angle is small, the vice versa.

Problems will occur in the trial folding of sheet material:

• Parameters that affect Angle calculation

• Material (strength affects pressure calculation, elastic modulus affects depth calculation)

• Reference distance between molds

• Height of upper die, lower die,

• Lower die Angle, opening, R radius.

• Machine structure stiffness, rigidity

How to adjust the bending Angle to calculate the value

• 1)1 Woven the mold according to the actual size of the mold in the mold library

• 2 Write a program in manual one step program to select the correct material for the mold.

• The Angle of 3 is 180 degrees, and the bending method is free bending. At this time, the calculated value of bending depth is only affected by the height and reference distance of the mold.

• 4 At this time, the upper die at the bottom dead point should be just pressed on the plate, the plate force but not deformation, is an approximate value can be.

• 5 If the position of the previous step is not correct, you should adjust the reference points of Y1 and Y2 to reach the state described above.

• 6 program 90 degrees (should be the Angle promised by the mold), try bending 100*100 short sheet material, make sure both sides are 90 degrees, measure the Angle after bending uniformly. At this point, the calculated value of bending depth is affected by the parameters described in the first article.

• 7 Angle is not in time can adjust the lower die opening value, machine tool structure stiffness to modify.

• 9 The middle Angle is inconsistent with the two sides, so the compensation value of Roughness should be adjusted to correct it.

• 2) Fold the full length of the sheet to check the straightness of the bending sheet

After 90 degrees, consistent, can use the total length of sheet metal bending, then both sides are consistent, inconsistent adjustment reference points, it is usually long board and short board Angle deviation is 2 to 4 degrees, can adjust the stiffness and strength, to fix a short board and long board Angle problem, if the Angle is small or large, middle can adjust rao degree of compensation value; If a certain Angle is wrong, you can only adjust the mold itself, and try to adjust the straightness of the bending of the whole length to be consistent.

Auxiliary shaft setting:

Click the Enable/Disable of the corresponding axis to disable all other corresponding axis enablers.

X:

In addition, you can enter the diagnostic interface, increase the analog output 1 port, determine the Enc3 is increased count, to prevent the rear stopper flying.

Explanation of X axis parameters:

Decimal position --------------------- displays precision, which represents the number of digits after the decimal point

Minimum --------------------------- soft limit before stopper limit.

Maximum --------------------------- soft limit after stopper limit.

Recede enable ------------------------- turn on the block retreat function

The shaft speed can be programmed ------------------- turn on this parameter can set the speed of the stopper in the operation interface.

The dividing multiplier of the shaft ------------ This parameter is the ratio of the obtained pulse quantity into the displacement quantity when the stopper moves, specifically, the pulse quantity obtained for each 1 mm movement, which is related to the frequency division ratio, pitch and transmission ratio.

Location of reference point ---------------- Location of reference point (initially set as the maximum of the stopper)

Search direction of reference point ---------- The rear stopper shall look for the direction of reference point after starting the machine. The normal value is 1(increase count) to look for reference point backwards. Note: sometimes setting 0 to look for the reference point is to go backwards, which indicates that the reference point is normally on or normally off, contrary to the internal setting of PLC.

Installation of reference point switch ----------- indicates whether a dedicated reference point switch is installed. The system can use the reference point switch or the servo rear limit as the reference point

Reference point search speed ------------ Reference point search speed is the percentage value of the maximum speed.

Counter direction -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- - feedback encoder counter direction, this parameter setting error will cause a coaster. It should be ensured that the feedback signal increases positively when the system is output positively, and decreases negatively when the system is output negatively.

1) The overall X-axis positioning mode -------- The positioning mode of the rear stopper is 0 for one-way positioning, which can eliminate the clearance of the lead screw, and 1 for two-way positioning, which has high positioning efficiency. Over-range range --------------- the distance of the stopper over the target position when unidirectional positioning; Overrun point waiting time ------ the time that the stopper stops waiting in the overrun position, which can eliminate the impact. 2) Speed and maximum speed of acceleration ----------- maximum speed of rear stopper operation; Acceleration time ----------------- Acceleration time from 0 to maximum speed; Deceleration time ----------------- deceleration time from maximum speed to 0; Deceleration time of emergency stop ------------ Deceleration time from maximum speed to 0 when emergency stop.

3) to strengthen

Proportional gain ------------------ Parametric servo control gain, affecting servo performance. Integral gain ------------------ response speed, stiffness, positioning accuracy. Setting Suggestions: Increase the gain until the servo motor starts to shake, and then reduce the gain until the motor does not shake.

• positioning tolerance -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- this is the X axis in place of tolerance, within the scope of the system signal X axis in place. (generally set to 0.1)

, motor type -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- motor control type, usually 0 system can + 0 to 10 v output, control the speed and direction at the same time.

After this parameter is set, the stopper will run at another speed when it is fast to the lower die.

R axis debugging:

Parameter setting of 1R axis is the same as that of X axis.

The 2R axis displays the value as the virtual zero, and the actual zero subtracts the height of the lower mold. Therefore, when the R axis finds the reference point, the value displayed subtracts the height of the mold, not the position of the reference point.

Note:

The zero position of 3R axis is consistent with the mold height; The R axis corresponds to the upper plane of the lower mold, with positive values on the top and negative values on the bottom. So the minimum and the maximum of the parameters.

The search direction of 4R axis is looking up.

If the R axis is a servo motor with locking brake, the rear limit cannot be used as the reference point, otherwise the R axis will fall off when it hits the rear limit. Use the reference point switch.

Also set in the servo

PN004=4.(Db when servo OFF, zero clamp position after over-range reverse connection braking stops)

PN511=4(pin 11,12 corresponding to the 50-core plug on the servo output BK signal)

5X,R axis to lower die protection action. One parameter is the safety area of the X axis in the lower mold parameters. The SN setting should be set according to the actual mold size measurement. The other parameter is the transition position of the R axis when the X axis is positioned in the product setting in the programming constant.

Disturbance compensation calibration:

Disturbance compensation is divided into mechanical compensation and hydraulic compensation.

A Hydraulic compensation calibration

1. Put the dial gauge detection head on the upper plane of the lower die to detect the deformation of the lower die jacked by the hydraulic cylinder. The dial gauge should be fixed firmly without shaking.

2. Determine the output mode of parameters before calibration = on port Y1A.

3. In the diagnostic screen, set the No. 1 point of the output high. Make sure KA1 receives power.

Pressure offset increases the DA value to half of the maximum pressure. Look at the pressure gauge at port M1. The pressure measured is about 15MP.

5 slowly increase the top disturbance intensity, see the value change of the dial indicator, record the % of the top disturbance intensity and how much wire the dial indicator has gone at this time. Continue to increase the intensity of the top disturbance until the dial indicator does not rotate. Also take notes.

6. The minimum and maximum value of top disturbance intensity % correspond to DA- minimum and maximum value in the input system, and the minimum and maximum value of the dial indicator correspond to - > in the input system parameters; Output the minimum and maximum values in the menu.

Problems during debugging:

The dial indicator does not change when the top disturbance intensity is increased.

A The picture above is not set well.

No 103 is welded on pin 15 of plug CN8 in system B.

C compensation valve is the plug of the valve is wrong or not plugged tightly

D The two fine tubing joints were misconnected.

F compensating valve card valve (uncommon)

G parameter output mode = on the Y1A port.

When you set it here, the hydraulic compensation is going to be set to Crown and the analog output. If there is an Angle error in the folded sheet material between the values automatically calculated by the manual interface of the system, the system parameters can be modified - >; The total parameter - & gt; Table inertia and slider inertia. Worktable inertia ------------- 51= 51, 52 parameters determine the calculation of Raw Degree Compensation; The inertia of the slider --------------- 52= the larger the parameter, the smaller the compensation value of Rough;

B Mechanical compensation calibration

Make sure the wiring is correct:

Pin 111, 12 and 13 are welded to the CN7 plug of the system for the potentiometer feedback signal during mechanical compensation.

2. At the diagnostic interface, set the digital signal output point No. 3 to 1, pull KM4 and turn the motor forward, and observe that the 2A value in the analog output is increased. Go to the limit switch motor stop. Set the No. 4 point of the digital output to 1, pull KM5 and reverse the motor, observe that the analog output is reduced.

Step up: when the motor reverses and stops at the limit, set the dial gauge to zero to detect the lower die surface. Set No. 3 point to 1, the motor rotates, the dial gauge changes; set No. 3 point to 0, the motor does not rotate, record the value of the dial gauge and the analog feedback input value at this time, until the motor hits the limit, and record the value. Set two sets of data to system parameters. (Similar to the minimum value set for disturbance compensation)

The main problem is still the line problem:

A Feedback wire connection is wrong, the variation range of analog quantity will be small.

B. The motor continues to rotate when it touches the limit, and the two limits are connected wrong. The motor does not turn, determine KA4, KA5 also pull, and then look at the limit is also connected to the normal closing point.

C When the disturbance positioning, the motor rotates back and forth. The main reason is that the hysteresis loop in the compensation parameter of the disturbance should be set as larger.

D The mechanical compensation here should be set to AC motor.

Disturbance compensation (hydraulic) parameters

• Output mode :=0 represents the voltage mode, the output is Outan2 ports, suitable for external amplifier compensation.

• 1 indicates that the output is port P

• 2 indicates an output of Y1A port, suitable for hydraulic valves that are BOSCH valves and can be directly compensated.

• Maximum voltage :------- For hydraulic compensation, maximum voltage output.

• Maximum current :--------- For hydraulic compensation, maximum current output.

• DA output mode :------- 0 means linear, 1 means table.

, DA - minimum value -- -- -- -- -- -- -- -- -- -- -- -- -- for hydraulic compensation, rao's start jacking jacking corresponding compensation valve offset % of diagnosis

A maximum, DA - -- -- -- -- -- -- -- -- -- -- -- -- -- for hydraulic compensation, top rao jacking of maximum deformation corresponding compensation valve offset % of diagnosis

For mechanical compensation, the value of the feedback from the analog input in the diagnosis

The final value --------------- 0 indicates that the system does not calculate the compensation value of the roughness,

1 represents the compensation value of the system's automatic Roughness before bending -------- 0 represents the compensation in place, which has nothing to do with the NCRDY signal.

1 means that the NCRDY signal is effective, and the compensation value must be in place. Usually, it can only be used for mechanical Raw Degree Compensation. Use external startup --------- 0 to turn off the external startup signal,

1 means the external signal must be connected to the system, through the PLC internal enable, can start the compensation of radiance.

Minimum value :-------- minimum value of compensation.

Maximum value: the maximum value of -------- compensation, unit is 0.01mm

Default value :-------- Default value for data programming.

Automatic R axis correction: 0 means off, 1 means open, and the R axis will be automatically adjusted according to the compensation value of the disturbance

Mechanical compensation parameters:

• After the above machine tool action debugging is basically completed, we can enter the manual interface of the system again to see whether the machine tool actions Y1, Y2, X,R, and the C axis of disturbance compensation are normal. If the movements are not coordinated, we should continue to optimize the machine parameters until the machine tool action is normal. If the system single-step machine operation is normal, can enter the multi-step programming interface, to see the multi-step operation of the machine.

Parameter and system backup

1 Prepare the U disk and insert it into the USB interface of the system.

2 Enter the interface of machine parameters.

Select Parameter Backup. (The backup parameter file is machineparameters.txt, which can be opened directly in the computer)

The PLC backup

Will Configuration/DELEME Sequencer/Sequencer. TXT the PLC folder, click on the "copy", stick to the U disk into the USB haidt disk again.

System upgrade:

Open the software installation package of the system and click the following image. Setup software will unpack Setup software to USB drive.

Plug the uncompressed upgrade software into the USB interface of the system.

Be sure to allow the user to update the software to open and re-enter

System bottom installation:

Click the software package, the system reinstall the package software download to the U disk.

Release the USB disk of the installation package and plug it into the USB interface of the system.

When the system power off and starts up, press the button as shown below for 2 seconds.

At the same time, the system will prompt the USB interface to plug the U disk.

The system will install itself and reboot after installation.

During the installation of the system, try to avoid system power outages.