Prefabricated hole die for standard chambering test

Abstract

The invention discloses a prefabricated hole die for the standard chambering test. The prefabricated hole die structurally comprises a prefabricated hole device, a die bottom die, a power indicator lamp, supporting feet, a controller, a die middle die, an observation window and a die top die. The bottom of the die top die and the top of the die middle die are fixedly connected. The bottom of the die middle die and the top of the die bottom die are vertically connected. The supporting feet are sequentially connected into a rectangular structure to be arranged at the bottom of the die bottom die. The power indicator lamp is arranged on the front side of the right end of the controller. The prefabricated hole device is arranged in the die bottom die, the die middle die and the die top die. The back of the controller is fixedly connected with the front side of the die bottom die. The side face of the observation window is embedded in the front end of the die top die. Through the device, rapid alignment of a male die and a female die can be achieved, meanwhile, the male die can automatically conduct fixed track ascending and descending, and accordingly, the deviation caused when a testpiece is pressed in the female die through the male die can be reduced; and meanwhile, the work difficulty of workers is relieved, and the work efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of prefabricated hole mold processing, in particular to a prefabricated hole mold used for standard hole expansion tests. Background technique [0002] The hole expansion test is a method of pressing the test piece with a hole in the center into the die by using a punch to expand the center hole of the test piece until necking or cracks appear on the edge of the plate hole. The test results are used to evaluate the flanging of the metal sheet. sex. [0003] At present, when the prefabricated hole mold used for the standard hole reaming test is used, it is difficult to realize the centering of the punch and the die, which will increase the difficulty of the work of the staff and increase the time of the test. Contents of the invention [0004] The main purpose of the present invention is to overcome the deficiencies of the prior art and provide a prefabricated hole mold for standard hole reaming tests. ...

AI Technical Summary

Problems solved by technology

[0003] At present, when the prefabricated hole mold used for the standard hole reaming test is used, it is difficult to realize the centering of the punch and the die, which will increase the difficulty of the work of the staff and increase the time of the test.

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