Why say numerical control electro-hydraulic bending machine is the production of metal wire processing essential equipment? In brief, it is to replace artificial equipment with fully automated machinery, improve output, reduce labor costs, improve productivity and so on, but the key to the specific implementation is to show that CNC bending machine is an indispensable manufacturing tool through the following points:
1, CNC bending machine is the use of SCM integrated control, arbitrary adjustment parameters, a variety of parameters storage function, digital display, save time, convenient management, improve productivity hydraulic bending machine
2, the key configuration of imported parts, to ensure the service life of the machine, using encoder meter error is very small, accurate positioning;
3, the machine has a balance, fast, accurate point, with fast, slow, pouring material characteristics;
4, all have hydraulic transmission, swing motor, without gear power, can reduce gear clearance;
5, the machine for the box structure, good rigidity, hydraulic transmission part flexible and reliable;
6, the control box is equipped with: fast feeding, automatic cutting, manual cutting, automatic stop, restart and other functions.
The electro-hydraulic bending machine is installed in the hydraulic valve table near the experimental mechanism of the hydraulic press hydraulic trivials, which can greatly expand the total length of the hydraulic pipeline, so as to reduce the number of pipe exploration. Greatly reduces the number of tubing discussions and flanges. Stack, cartridge and plate valves are commonly used in planning. One of the ineffective measures to guard against leakage is the use of integrated block combination to reduce the point of departure. The hydraulic system should be open to external vibration sources. Pipes should be equipped with pipe clamps. Pump sources can be dampers, changsha bending machines, high pressure hoses, compensating nozzles or pulsating manifoles to counteract pressure pulsation and reduce vibration.
The hydraulic valve table installed in the hydraulic system near the actuator greatly reduces the total length of the hydraulic pipeline and the number of fittings. Therefore, under working conditions, or greatly reduce the total length of the hydraulic line with the number of tubes discussed. Hydraulic attack is usually caused by rapid reversing.
Electro-hydraulic bending machine adopts clearance sealing motion pair. Machining precision and fit clearance should be strictly controlled to improve the sealing arrangement. For example, the "V" seal on the piston rod is changed into a "Y" seal ring, which not only has low power and is sealed. Reliable. At the same time, current inspection, regular maintenance and timely action is to guard against leakage and cut dissuade the fundamental guarantee.
Hydraulic and mechanical vibration of electro-hydraulic bending machine directly or indirectly affect trivial, resulting in loose connections and exposure.
The optional bending machine must pay attention to:
The bending radius of parts: when using free bending, 63/2500 bending machine, the bending radius is 0.156 times of the opening distance of the die. In the free bending process, the die opening distance should be 8 times the thickness of the metal material. For example, for a 40/2500 bending machine price, the bending radius of the part is about 0.078 inches when forming a 16 Gauge low carbon steel with a 1/2 inch opening distance. If the bending radius is almost small to the thickness of the material, the bottom die must be formed. However, die forming with a bottom requires about four times more pressure than free bending.
If the bending radius is less than the thickness of the material, must use the front end of the fillet radius is less than the thickness of the punch, and resort to the imprint bending method. In this case, 10 times the free bending pressure is required. For free bending, punch and die press 85amp; deg; Or less than 85 amp; deg; Make (a small one would be better). When using this set of dies, pay attention to the gap between the punch and the die at the bottom of the stroke and enough to compensate for springback to keep the material at 90AMP; deg; Excessive bending to the left and right. Generally, free bending die in the new bending machine produced rebound Angle ≤2amp; deg; And the bending radius is equal to 0.156 times of the opening distance of the die. For the bottom die bending, the mold Angle is generally 86 ~ 90amp; deg; . At the bottom of the stroke, there should be a gap between the convex and concave dies slightly greater than the thickness of the material. The forming Angle is improved because the tonnage of the bottom die bending is larger (about 4 times that of free bending), reducing the stress that normally causes springback within the bending radius.
Embossing bending is the same as the bottom die bending, but the front end of the punch is processed into the required bending radius, and the bottom of the stroke of the die gap is less than the thickness of the material. Springback is largely avoided by applying enough pressure (about 10 times that of free bending) to force the punch's front end into contact with the material. In order to choose the lower tonnage specifications, for greater than the thickness of the bending radius for the plan, and as far as possible to use free bending method. When the bending radius is large, it often does not affect the quality of the finished parts and its future use.
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