Drawing die

Abstract

The invention discloses a drawing die. The drawing die comprises a drive mechanism for driving an upper die to lift, and further comprises a first transmission mechanism, a second transmission mechanism and a third transmission mechanism, wherein through lifting of the upper die, under the action of the first transmission mechanism, the moving block transversely moves; through transverse movement of the moving block, under the action of the second transmission mechanism, a locking block and a workpiece are separated in a delayed mode; and through transverse movement of the moving block, under the action of the third transmission mechanism, the workpiece is jacked up. The drawing die has the effect that a workpiece can be unlocked in a delayed mode through a single drive source, so that the workpiece is stressed in a balanced mode in a slow unlocking process and is in a pressure maintaining state all the time, and thus, the unlocked workpiece is not prone to rebounding; and meanwhile, the workpiece is jacked up in cooperation with a protruding block, so that design is more humanized, ad the practicability is higher.

Description

technical field [0001] The invention relates to the technical field of stamping dies, in particular to a drawing die. Background technique [0002] Drawing properties have an important influence on the forming process of automotive panels. Rapid and accurate measurement of the forming properties of cold-rolled thin steel sheets is a prerequisite for quality control of the panel forming process. Drawing properties have an important impact on the forming process of automotive panels. Fast and accurate measurement of the formability of cold-rolled sheet steel is a prerequisite for quality control of the panel forming process. [0003] At present, the existing drawing die mold directly lifts the upper mold to unlock the part at the end of the drawing, so that a series of unfavorable conditions such as shaking and deformation may occur while the part is unlocked. There will be a certain loss of the workpiece, which will make the drawing effect not good, and the workpiece will be...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a drawing die, which has the effect of delayed unlocking of the workpiece through a single driving source, so that the upper and lower forces of the workpiece are balanced during the slow unlocking process, and the In the pressed state, the unlocked part will not easily rebound, and at the same time, the protrusion can have a jacking effect on the part. The design is more humanized and the effect is better, which solves the problem of the existing When the drawing die is finished, the upper die is directly lifted to unlock the part, so that a series of unfavorable conditions such as shaking and deformation may occur while the part is unlocked, which may cause damage to the part. There is a certain loss, which makes the effect of drawing not good, and the part is directly unlocked. Because the part has not been subjected to pressure for a certain period of time, that is, without the action of maintaining pressure, the drawing effect of the part after unlocking may be reduced. Changes occur, which leads to poor practicability, and after unlocking the part, due to the fitting relationship between the part and the lower blanking ring, it is not easy to take it out, which seriously affects the use efficiency

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