Measurement method of mould closing margin of stamping mould

Abstract

The invention discloses a measurement method of a mould closing margin of a stamping mould. The method comprises the following steps that a mould blank holder state is checked and adjusted, a mould balance state is checked and adjusted, mould closing height is set, the to-be-measured mould is used for pressing a workpiece, opening treatment is conducted on the workpiece, all opened positions are subjected to double numbering, filler is prepared, the filler is prepared from industrial plasticine and soft steel wires, the workpiece is placed on the upper surface of a mould lower die, one group of filler is placed at each opened position, the soft metal wires, the industrial plasticine and the mould are stacked from top to bottom in sequence, the mould is closed, the filler is pressed, the thickness of an opened piece of the workpiece subjected to opening and the thickness of the soft metal wires subjected to pressing are measured, and for the opened positions, data processing is conducted on areas which need to be subjected to heavy coloring and light coloring separately, so that the mould closing margin of the stamping mould is obtained. Through the measurement method, the mould closing margin can be measured accurately and reliably.

Description

technical field [0001] The invention relates to the technical field of stamping die manufacturing, and more specifically, relates to a method for measuring the clamping margin of a stamping die. Background technique [0002] In order to ensure the size and surface quality of stamping parts, the upper and lower die surfaces of stamping dies have very strict matching requirements. [0003] In the traditional method, during the mold debugging process, the method of pressing blue oil parts is used to judge whether the matching of the upper and lower die surfaces of the stamping die meets the requirements. First, paint a thin layer of blue oil on both sides of the part, then put the part into the mold for pressing, and observe the coloring of the blue oil on both sides of the part after pressing to judge the matching state of the mold. The side is pressed white, commonly known as heavy coloring, which indicates that the surface of the upper and lower molds in this area is well m...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a method for measuring the mold clamping allowance of a stamping die, which uses an indirect measurement method to solve the technical problems that the measuring instrument cannot go deep into the mold and the mold clamping allowance cannot be accurately measured when the mold is closed

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