The cylinder is used to hold hydraulic oil, and the CNC bending machine is a kind of machine used to bend sheet metal. When we use the CNC bending machine to bend the material, we must bend in the middle section. If it is bent on one side, then when the cylinder on one side touches the workpiece, the cylinder on the other side will continue downward until the other side of the oil cylinder touches the lower die, the two oil cylinders start to pressurize. When the oil cylinder works with one side high and the other low, the press brake cylinder will soon be damaged and leak oil.
Secondly, try not to choose a two-cylinder CNC bending machine, because the working life of such a CNC bending machine is too short. When the workpiece is in the middle of the CNC bending machine and the cylinders are on both sides, the reaction force generated by the inclination of the slider causes the center of the slider to protrude outward, resulting in inaccurate bending of the CNC bending machine.
Since the two-cylinder CNC bending machine cannot be used, the three-cylinder CNC bending machine should be used. The third cylinder is in the middle, and the force point is directly in place. The slider will not deform or protrude, which is fully ensured The precision of the CNC bending machine can also extend the service life of the equipment.
According to the length of the worktable, there are several hydraulic cylinders arranged on the lower beam of the bending machine, and the piston rod is on the worktable. When bending, these hydraulic cylinders enter the oil and generate upward pressure on the worktable, which causes the worktable to produce upward deflection, which is different from the deflection direction of the slider.
In this regard, we must pay attention to check the presser foot of the press brake to prevent leakage of its seal. If the problem has occurred, it is necessary to replace the seals in time to ensure that the press foot of the press brake has enough pressure to press the steel plate, which provides a good foundation for the smooth completion of the bending work.
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