Edge grinder

Abstract

The invention provides a cutting edge grinding machine. The cutting edge grinding machine comprises a workbench, a workpiece, a positioning mechanism, an air grinding wheel, a connecting rod assembly and a sliding assembly. The workpiece is positioned on the workbench through the positioning mechanism. The sliding assembly is slidably arranged on the workbench. The connecting rod assembly is rotationally arranged on the sliding assembly. The air grinding wheel is arranged on the connecting rod assembly. In the grinding process of the workpiece, the connecting rod assembly moves together with the air grinding wheel and supports the air grinding wheel. According to the cutting edge grinding machine, a double-connecting rod mechanism is adopted, and thus the effect that the axis direction of the air grinding wheel and the punching direction are basically parallel can be ensured when the workpiece (such as an insert) is ground; and in addition, the workpiece is positioned through the positioning mechanism, so that the workpiece is machined after being fixed, and thus the grinding precision can be improved.

Description

technical field [0001] The invention relates to the technical field of stamping dies, in particular to an edge grinder for stamping die inserts. Background technique [0002] At present, after a period of use, the cutting edges of punches and die inserts of stamping dies sometimes become blunt, have excessive gaps, and crack, and need to be repaired and welded. Such as figure 1 As shown, when grinding the cutting edge of the insert 3, it is necessary to manually support the grinder with both hands. Based on the vertical plane of the original cutting edge, try to keep the axis of the air grinder 2 parallel to the punching direction, and swing left and right. Press down hard, not too hard, to grind off the excess. Through this grinding method, the quality of the front groove 5 on the edge welding 4 is difficult to guarantee, and the quality of the repaired curved surface depends on the skills of skilled workers to complete this work, thus resulting in the maintenance of punc...

AI Technical Summary

Problems solved by technology

Through this grinding method, the quality of the front groove 5 on the edge welding 4 is difficult to guarantee, and the quality of the repaired curved surface depends on the skills of skilled workers to complete this work, thus resulting in the maintenance of punching and trimming dies for many stamping parts After the block is inserted, it is easy to cause the mold gap to be too large, the trimming burr of the stamping part is too long, and what's more, the burr of the stamping part is manually ground with a grinding wheel

[0003] The tolerance of the insert is related to the thickness of the stamping part. The thicker the material, the greater the tolerance, and the thinner the material, the smaller the tolerance. Taking 1mm material thickness as an example, the tolerance of the insert is less than 0.02mm. It is difficult to completely restore the original shape. Finish

Therefore, it is difficult to achieve complete repair of the insert only by the current technical means, and the leveling ability of the human hand is inaccurate, and it is easy to grind the groove at the front groove. , under the action of inertial force, the grinding wheel 1 must grind the pits at the pits 6 on both sides

Even rework, re-soldering, and grinding waste a lot of manpower and material resources and cause environmental pollution

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