Method and device for automatically adjusting blade clearance of plate shearing machine

Abstract

The invention discloses a method and a device for automatically adjusting a blade clearance of a plate shearing machine. The method comprises the following steps that an elastic rolling wheel is arranged on a front panel of the plate shearing machine to push against an upper knife rest, so that the upper knife rest is tightly clung to a back support; meanwhile, a wedge-shaped cushion plate is arranged between the upper knife rest and the back support; the wedge-shaped cushion plate is driven by an adjusting motor to slide between the back support and the upper knife rest, so that stepless regulation of the blade clearance delta of the plate shearing machine is realized. The device is simple in structure, easy to machine, high in precision, good in stability, not easy to deform, low in abrasion and lubrication-free; the defects that a guide rail is required to be lubricated to slide, a rolling guide rail is not easy to machine, the precision is relatively poor, lubrication is required, and deformation is easy to cause are overcome; the method and the device are suitable for adjusting the blade clearance of the plate shearing machine and can also be used for adjusting the precision of small strokes of the mechanisms of other mechanical devices.

Description

technical field [0001] The invention relates to a method and a device for automatically adjusting the gap between blades of a shearing machine, belonging to the technical field of automatic adjustment of a shearing machine. Background technique [0002] The shearing machine completes the shearing operation of the plate through the relative movement of the upper and lower blades. The gap between the upper and lower blades needs to be adjusted to the optimal gap according to the thickness of the material to be cut in order to obtain the best cutting effect. Generally, 10% of the material thickness is the optimal gap. If the gap between the upper and lower cutting edges of the shearing machine is not adjusted properly, the quality of the cut plate will be greatly reduced. If the gap is too large, the splint or the incision will be bent and uneven. If the gap is too small, the damage to the cutting edge will be greater. [0003] At present, the blade gap of the shearing machi...

AI Technical Summary

Problems solved by technology

[0003]At present, the blade gap of the shearing machine cannot be adjusted during operation. The adjustment of the blade gap is mainly done by adding gaskets of different thicknesses when replacing the shear blade.

When adjusting, you need to loosen the fixing screw of the lower blade seat, turn the adjusting screw on the front to adjust the gap, and adjust it while checking the gap value with a feeler gauge. The adjustment process is very troublesome, and the adjustment accuracy is not ideal

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