A high-precision guide structure for punching copper sheets

Abstract

The application discloses a high-precision guide structure for copper sheet punching, and relates to the technical field of mold guide structures.The high-precision guide structure comprises an upper mold and a lower mold, the upper mold comprises an upper mold base and a fixed plate, the lower mold comprises a lower mold base and a concave mold plate, and the high-precision guide structure further comprises a guide group, the guide group is installed between the upper mold base and the lower mold base, the guide group comprises at least two groups of symmetrically-arranged guide pairs, each guide pair comprises a guide column and a guide sleeve, the guide column is fixed to the lower mold base, the guide sleeve is fixed to the upper mold base, the guide sleeve is provided in a multi-section structure and comprises a fixed section, a floating section and a guide section, and the guide structure further comprises an automatic oil injection mechanism.The high-precision guide structure for copper sheet punching can realize self-sensing of the friction state of the guide pairs and on-demand self-adaptive lubrication by sensing friction through the floating section and setting a stable threshold value in a damping oil cavity, can break the dependence on manual operation, can ensure long-term reliability of lubrication control, and can improve guide precision maintainability and mold service life.

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