Locating pin of hot-forming drawing mould

Abstract

The invention discloses a locating pin of a hot-forming drawing mould. The locating pin comprises a bullet head, wherein a cylindrical structure is arranged below the bullet head; a disassembly hole is formed in the cylindrical structure; a turnover tapered step is arranged below the disassembly hole; the lower portion of the turnover tapered step is equipped with threads through a cylindrical transition area; and an inner hexagonal structure is arranged at the bottommost side of the locating pin. In a production process of the hot-forming drawing mould, a mechanical hand clamps and conveys a plate to a position above the hot-forming drawing mould, and the plate is located through a locating process hole preset in the plate; error correcting area is increased through the bullet head, so that introduction precision is improved; then, the error correcting area is further increased through the turnover tapered step, so that introduction precision is improved again while high precision is provided for next-time locating; and the disassembly hole and the inner hexagonal structure are conveniently dismounted, so that efficiency is improved.

Description

technical field [0001] The invention relates to a mechanical part, in particular to a plate positioning pin for a thermoforming drawing die. Background technique [0002] The function of positioning parts is to determine the correct position of the blank fed into the mold in the mold to ensure that qualified parts are punched out. Among them, the positioning pin is used as a single blank or process piece for positioning, and the positioning principle is based on the shape or inner hole of the blank or process piece. [0003] Thermoforming drawing dies are generally used to form a single billet with complex shapes, so the traditional positioning method is to use positioning pins for positioning. The height of the pin is higher than the height of the plate, and the hole on the plate is used to position the plate. However, there are some problems in this way. For example, in the automatic production line, the precision of the manipulator clamping cannot be fully guaranteed, t...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above problems, the object of the present invention is to provide a mechanical part, which is specifically a sheet positioning pin for thermoforming drawing dies, which can solve the problem of stepped positioning pins for thermoforming drawing dies in the traditional production process. , Such as inaccurate positioning, low connection strength of positioning pins, cumbersome assembly process, large damage to the mold, high replacement cost, etc.

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