- Adopt all-steel welded structure with sufficient strength and rigidity.
- Hydraulic upper transmission, the oil cylinders at both ends of the machine tool are placed on the slider to directly drive the sliding work.
- It adopts mechanical block structure, which is stable and reliable.
- Wedge-type deflection compensation mechanism to ensure high bending accuracy.
When the bending machine is used, damage to parts and natural wear of the guide rails are inevitable. However, the power is reduced and the work is seriously affected. Timely maintenance will be more profitable. Therefore, the maintenance and repair of mechanical equipment and the protection of guide rails are important parts that cannot be ignored. The maintenance method to improve the production efficiency of equipment from the perspective of economic benefits is treated according to the degree of influence of equipment on production. The equipment should not be repaired after the fact, the key lies in the daily preventive maintenance of the equipment.
Generally, the springback angle produced by the free bending die on the new bending machine is ≤2°, and the bending radius is equal to 0.156 times the opening distance of the die.
For bottomed die bending, the die angle is generally 86 to 90°. At the bottom end of the stroke, there should be a gap slightly larger than the material thickness between the punch and the punch. The forming angle is improved due to the higher tonnage of the bottomed die bend (about 4 times that of the free bend), reducing the stress that normally causes springback within the bend radius.
Imprint bending is the same as bottomed die bending, except that the front end of the punch is processed to the required bending radius, and the punch and die gap at the bottom of the stroke is smaller than the material thickness. Springback is essentially avoided by applying enough pressure (about 10 times the free bend) to force the front end of the punch into contact with the material.