Views: 4 Author: DURMAPRESS Publish Time: 2021-04-25 Origin: DURMAPRESS
The metal sheet bending machine has good rigidity and stability, the whole frame is rigid, the work is stable, safe and reliable, easy to operate, through the coordination control of the electrical system and hydraulic system of the hydraulic bending machine, to achieve the ideal bending effect.
1. The frame adopts all-steel integral welding structure to ensure the overall accuracy of the machine tool, with excellent stiffness and excellent anti-twisting and anti-tilting ability.Hydraulic transmission to ensure that the work of the plate thickness change or the lower die "V" shape groove selection is not caused by serious overload accidents, in addition to the machine has the characteristics of smooth work, convenient operation, low noise, safety and reliability.
2. The cylinder is equipped with a mechanical block to ensure the repeated positioning accuracy of the sliding block to the bottom dead point, so as to ensure the consistency of the bending Angle during mass production.
3. The machine adopts hydraulic electric control, the slide stroke can be adjusted arbitrarily, and has the action specifications of point, semi-automatic, automatic, etc., which can be used for mold test and adjustment conveniently.
Upmoving bending machine design, double cylinders work at the same time, operation balance, convenient, safe.It has calendering function at the lower dead point to ensure the precision of the workpiece.With the function of slow descent control, the operator can better control the workpiece.
5 The adjustment of rear stopper is driven by 0.55KW motor, which is reduced by gear and driven by screw screw.Press "+" and "-" to adjust the baffle plate forward or backward, (digital display size position) in the motor adjustment can not reach the required adjustment value, you can rotate the manual adjustment wheel for manual fine-tuning to ensure the required adjustment value.
The upper die adopts several piecewise short dies, the length of stitching is required, with high accuracy and good interchangeability, easy to disassemble and assemble.The connecting part is equipped with a compensation mechanism to compensate the deflection of the worktable and the sliding block when bending the sheet material, so as to ensure higher working accuracy.
The hydraulic system adopts the integrated control system, reduces the pipeline installation, adopts the imported seal ring, improves the working stability of the machine tool, beautiful and simple appearance.
Main configuration (optional) :
1. The piston of the main cylinder of the machine tool adopts aerospace technology - surface nickel and phosphorus treatment, its hardness can reach HRC60 above, and the guide sleeve relative to the piston adopts the self-lubricating zinc-based wear-resistant alloy, which can make the cylinder in a good working state for a long time.
2, the use of torsional shaft synchronization, mechanical block, reliable, economic, high precision.
3. The upper die is equipped with a winding compensation mechanism.
4.Machine Tool Electrical: Schneider Electric
5. The oil cylinder is produced by Jianhu Hydraulic Equipment Co., Ltd., and the main seals are produced by Japan Huarka Company.
6. The main parts in the electric box are produced by Schneider.
7. The hydraulic system is controlled by cartridge valve, which runs fast and stably. The main hydraulic components are made by Shanghai Hydraulic Parts Factory No. 2.
8, The hydraulic pump adopts space standard low noise internal gear pump NT3 series.
WC67K series hydraulic plate bending machine can be equipped with various types of special CNC system: DA41, E21+, MD20, etc.With the function of multistep programming, it can realize the automatic operation and continuous positioning of the multistep program, and realize the automatic and accurate adjustment of the position of the rear stopper and slider.Bending count, real-time display of processing quantity, power memory rear stopper slider position, program and parameters;The rear stopper adopts imported ball screw and linear guide rail to ensure the positioning accuracy of the rear stopper and higher machining accuracy.
Abnormal high pressure processing of bending machine
Because of the mobilization and suspension of the hydraulic strike, the hydraulic trivialization of the bending machine is to be prevented in actual production, and the old fire affects the task of the bending machine.Therefore, we should adopt passive procedures to regulate it.The fundamental way to prevent extreme low pressure is to equip relief valves and slow down the hydraulic pressure in the loop.
(1) in the hydraulic circuit is equipped with a pressure reducing valve, how much is the hydraulic bending machine a, in order to defend the external force and low pressure loop.When cylinder 1 is resting, inertia is used to add pressure to the cylinder and the equipment is equipped with a safety valve to protect against extremely high pressure.Resist extremely high voltage loops due to inactivity of components.When the cylinder 2 drops, assuming that the balance valve 1 is not working, the extremely low pressure is built on the piston rod side, and the safety valve 3 is equipped to prevent this situation.Defend abnormal high voltage circuit during abort.When the hydraulic motor 2 drives the inertial load and the reversing valve 1 goes to the neutral position, a large hydraulic attack occurs, and the brake valve 3 is equipped to deflect the expanding high pressure oil and, together with the check valve, to suck oil from the fuel tank to fill the vacuum on the other side of the tubing to prevent cavitation.
(2) slow down the hydraulic attack and apply the flow valve to slow down the hydraulic attack circuit.When driving, electro-hydraulic directional valve 1 and solenoid directional valve 2 reverse together, and the opening of flow valve 3 is slow to open.When the suspension rests, the opening of the flow valve 3 is slowly closed by the solenoid directional valve 2, which slows down the speed of the electric idea, and the electro hydraulic directional valve 1 is in the identity of the electric idea.Acceleration and deceleration are mediated by economical equipment.Through the configuration of hydraulic cylinder at the end of the buffer and road economical use also approximately reduce the hydraulic attack.
How should we choose the probe of hydraulic bending machine?
When choosing hydraulic bending machine probe, refer to the following aspects in general.
1, according to the processing of the head
Enterprise or according to the disposal needs of the probe.For example, if you need to measure and calibrate the workpiece in the processing process, or choose the workpiece detection probe;For tool viewing, determine the tool search probe.In addition, it is also possible to determine the hydraulic bending machine probe according to the complexity of the processing.For example, in the processing of complex workpiece, the use of hydraulic bending machine probe, in the processing of simple workpiece when the use of hydraulic bending machine probe.
2. Choose the right stylus
As a necessary part of hydraulic bending machine measurement, the stylus will directly affect the measurement of hydraulic bending machine probe.As a result, the company is able to use a stylus as a reference in the resolution probe.
Generally speaking, the choice of measuring needle follows three criteria, namely rigidity, precision and machining condition.When the workpiece hardness is high, choose rigid stylus, such as stainless steel stylus or tungsten carbide stylus.Otherwise, the hydraulic bending machine may reduce the rigidity of the stylus.When the machining accuracy of the workpiece is high, the hydraulic bending machine manufacturer, the measuring accuracy of the measuring needle is also improved, CNC hydraulic bending machine, generally speaking, the shorter the measuring rod, the larger the diameter of the measuring ball or the number of measuring needle components is less, the accuracy of the measuring shearing machine probe;In addition, if the vibration in the process is very large, you need to decide on strong vibration resistance of the stylus, such as carbon fiber stylus.
Probe of hydraulic bending machine is an important aid device in hydraulic bending machine processing.CNC shears of the cutting machine with a lower capital forward machining accuracy and compliance.For companies that want to improve the machining performance of shears, it is an easy and convenient way to test the installation of shears probes
When the table of the hydraulic cylinder department of the bending machine moves about the hydraulic oil, the dissolved gas in the hydraulic oil is easy to accumulate and cause bubbles.These bubbles flow into the low-pressure area after the bean section, suddenly high temperature and low pressure micro-spray and repeated influence on the skin of the hydraulic cylinder parts of the four-column bending machine, causing the appearance of the parts cavitation.The cavitation condition of the hydraulic cylinder of the four-column bending machine is related to the structure of the hydraulic system, the hydraulic cylinder parts of the four-column bending machine, the wind of the hydraulic oil, the guard and the mending.
The bending machine is a kind of hydraulic transmission technique for pressure processing device, can be used to perform various forging and reducing the forming foundation.For example, forged steel, molding of metal layouts, pressing of plastic and rubber products.The bending machine is one of the machines that use hydraulic power.At present, hydraulic transmission has become the primary transmission form of pressure processing machines.Bending machine has become a heavy machinery manufacturing operations, aerospace industry, plastic and non-ferrous metal plus the necessary equipment.
The hydraulic transmission crushing of the bending machine is mainly based on the pressure change, the system pressure is large, the flow is large and the power is large.In order to ensure the safety and reliability, the power rate of the original thought should be rated to guard against the attack and vibration in the decompression process.
According to the control process, the bending machine probably realizes rapid decline and slow pressing, pressure maintenance delay, back pressure to stop (any position), pressure, rate and pressure, rate and base work cycle.Hang on for a while and maybe mediate.The hydraulic cylinder is mainly used to set up the workpiece, and needs to test the movement of jet, retreat and stop.For example, when a sheet is being stretched, it needs to be promoted to assist in movement, such as lifting the hydraulic cylinder, holding the hand and pressing forward.It is sometimes necessary to use a crimping roller to overcome the blank to protect the area from wrinkling.The bending machine uses the main actuator (master cylinder) perhaps in the main movement of the input of high pressure (tonnage) as the primary specification of the bending machine, not to mention has been serialized.