Cold stamping die capable of achieving in-die automatic tapping of threads

Abstract

The invention discloses a cold stamping die capable of achieving in-die automatic tapping of threads. The cold stamping die comprises a stamping forming die and an in-die tapping machine 335. The stamping forming die is composed of an upper die and a lower die, the in-die tapping machine 335 comprises a lead screw 395, a first gear 415, a second gear 445, a third gear 455, a fourth gear 465 and a screw tap 565, the lead screw 395 is in fastening connection with the upper die base 235 through a screw, the lead screw 395 penetrates through a spiral shaft 435 and is in meshed rotary connection with the spiral shaft 435, the spiral shaft 435 is in fastening connection with the first gear 415, the first gear 415 is in meshed rotary connection with the second gear 445, the third gear 455 is in meshed rotary connection with the fourth gear 465, and the screw tap 565 is in fastening connection with a jacket 555; and when the upper die moves downwards, the screw rod 395 drives the spiral shaft 435 and the first gear 415 to rotate and enables the screw tap 565 to rotate to tap the threads.

Description

technical field [0001] The invention relates to the field of die manufacturing, which is a cold stamping die for automatic thread tapping in the die. Background technique [0002] Existing cold stamping parts are assembled through threaded holes and screw fixing on the cold stamping parts. Threads are produced by tapping with a tapping machine. Since the existing technology is to use the cold stamping die to stamp out the formed part and the threaded bottom hole of the formed part, and then use a tapping machine to tap the thread in the threaded bottom hole outside the mold, so two tooling is required to complete the stamping. And tapping thread, resulting in many parts processing, low production efficiency, high manufacturing cost, long production cycle, which is not conducive to the high efficiency and fast requirements of modern technology. In order to overcome the above problems, it is necessary to develop a mold that integrates stamping and tapping to solve the defici...

AI Technical Summary

Problems solved by technology

A cold stamping die for automatic thread tapping in the mold solves the problem of the prior art that the stamping die is used to form and stamp the bottom hole of the thread, and then use a tapping machine to process the thread twice outside the die. The processing procedure is cumbersome and the production efficiency is low. low, long production cycle

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