Forming die and forming method for adjacent upper and lower side holes of automobile parts

By designing a mold for automotive parts, the compression forming sequence of pre-pressed flip holes and nitrogen springs is used to realize the ground pre-pressure flip holes of adjacent upper and lower flip holes of automotive parts, and the flip work is completed one after another, which solves the problems of complex and low economical mold design in the prior art, improves the flip efficiency and reduces production costs.

CN115178665BActive Publication Date: 2025-03-21CHENGDU PUSH AUTOMOBILE MOLD CO LTD
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Patent Information

Application Number
CN202210962393.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-08-11
Publication Date
2025-03-21
Estimated Expiration
2042-08-11

AI Technical Summary

Technical Problem

In the prior art, when an automobile part has both an upper flip hole and a lower flip hole, it needs to be formed through two different processes, resulting in complex mold design and low economicality.

Method used

A molding mold is designed, including an upper mold seat and a lower mold seat. The blank of automobile parts is pre-pressed between the upper and lower mold seats through the pre-pressed flip-hole assembly, and the compression forming sequence of nitrogen springs is used to complete the flip-turning small holes and the lower flip-holes.

Benefits of technology

After one pre-pressure of the adjacent upper and lower flip holes of automobile parts, the flip work is completed one after another, which reduces the number of molds and flip processes, improves the flip efficiency and reduces production costs.

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Abstract

The present invention discloses a forming die and a method for turning adjacent upper and lower side holes of automobile parts, and belongs to the technical field of design and manufacturing of automobile parts forming process equipment. Provided is a forming die and a method for turning upper and lower side holes respectively through one-time pre-pressing. The forming die comprises an upper die seat and a lower die seat, and the forming die also comprises a pre-pressing and turning hole assembly, and the pre-pressing and turning hole assembly are respectively arranged on the upper die seat and the lower die seat in a mutually adaptive manner; then, in the turning process of automobile parts with adjacent upper and lower side holes, the automobile part blank is first pre-pressed between the upper die seat and the lower die seat by the pre-pressing and turning hole assembly, and then based on the forming die, a three-stage compression forming sequence of a nitrogen spring is used to successively complete the turning of adjacent upper and lower side holes of automobile parts through upper and lower side hole turning forming preparation, upper side small hole turning forming and lower side large hole turning forming at one time.
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