Punching method of tube hole set and stamping die thereof

Abstract

The invention discloses a punching method of a tube hole set and a stamping die thereof. The method comprises the following steps of: setting a joggle die capable of moving up and down between an upper die and a lower die of a punching machine, wherein one side of the joggle die, which is opposite to a first punch head arranged on the upper die, is provided with a lower die port, and one side opposite to the lower die is provided with a second punch head; then aligning the lower die port with the first punch head and aligning the second punch head with the lower die; sheathing a tube on the joggle die; moving the upper die downwards, causing the upper die to drive the joggle die to move downwards after punching a hole of the upper surface of the tube by utilizing the first punch head of the upper die, and then punching the hole of the lower surface of the tube by utilizing the second punch head of the joggle die. When the first punch head punches the hole of the upper surface of the tube, the joggle die has the function of a concave die; and after the holes of the upper surface of the tube are punched by the first punch head, the joggle die has the functions of a convex die, and therefore, with the punching method, the punching of two holes of the upper surface and the lower surface of the tube can be accomplished in one procedure, thereby improving production efficiency.

Description

technical field [0001] The present invention relates to a stamping method and a stamping die. Background technique [0002] Pipes are widely used in automotive, construction, electronics, machinery and other industries. These pipes often require hole groups or cuts on the upper and lower surfaces. If the ordinary punching or drilling process is used, it needs to be punched or drilled in two times. Not only is the production efficiency low, but also the holes on the upper and lower surfaces are required. In the case of coaxiality, it is difficult to ensure the coaxiality of the hole on the upper surface of the pipe and the hole on the lower surface by using the existing processing method. SUMMARY OF THE INVENTION [0003] The technical problem to be solved by the present invention is to overcome the above-mentioned defects of the prior art, and to provide a punching method and a punching die for a pipe hole group for punching out hole groups on the upper and lower surfaces...

AI Technical Summary

Problems solved by technology

These pipes often need to process hole groups or cuts on the upper and lower surfaces. If ordinary stamping or drilling processes are used, stamping or drilling and milling need to be divided into two times. Not only the production efficiency is not high, but also the holes on the upper and lower surfaces In the case of coaxiality, it is difficult to ensure the coaxiality of the hole on the upper surface of the pipe and the hole on the lower surface by using the existing processing method

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