Ball head bolt cold heading forming mold and forming process

Abstract

The invention discloses a ball head bolt cold heading forming mold and a forming process. In a first mold, the punching and the cold heading can be performed to form a rudiment connecting groove holein a columnar rod preformed piece g, a rudiment connecting column on the columnar rod preformed piece g and a rudiment connecting base to form a preformed piece a; in a second mold, the rudiment connecting groove hole in the preformed piece a is finished, and the punching and the cold heading are performed to form a rudiment thread column to form a preformed piece b; in a third mold, the punchingand the cold heading are performed to form a rudiment bolt head and a rudiment reinforcing rib on the preformed piece b; the rudiment connecting base is finished; the punching and the cold heading areperformed to form a connecting base; and a preformed piece c is formed; in a fourth mold, the rudiment reinforcing rib on the preformed piece c is finished; the punching and the cold heading are performed to form a reinforcing rib; the punching and the cold heading are performed on the rudiment bolt head to finish out a bolt head; and a preformed piece d is formed; and in a fifth mold, the punching and the cold heading are performed on the rudiment connecting column to finish out a connecting column; and the punching and the cold heading are performed on a ball head to form a finished piece e.

Description

technical field [0001] The invention relates to the technical field of ball stud bolt processing, and specifically relates to a ball stud bolt cold heading forming mold and a forming process. Background technique [0002] See figure 1 The ball stud shown is composed of a ball head 1, a connecting column 2, a connecting seat 3, a bolt head 4 and a threaded column 5 connected in sequence. There are evenly distributed reinforcement corrugated 7 between them. [0003] Ball stud bolts are usually made by cold heading and then finishing, so the strength of their use needs to be strengthened in structure. In view of the fact that the current molds used to produce ball stud bolts still generally have defects such as unreasonable structural design and cumbersome operation process, it is necessary to The production of ball stud bolts of this shape requires the preparation of a cold heading machine, and the cold heading machine will be equipped with a set of cold heading molds for ma...

AI Technical Summary

Problems solved by technology

[0003] Ball stud bolts are usually made by cold heading and then finishing, so the strength of their use needs to be strengthened in structure. In view of the fact that the current molds used to produce ball stud bolts still generally have defects such as unreasonable structural design and cumbersome operation process, it is necessary to The production of ball stud bolts of this shape requires the preparation of a cold heading machine, and the cold heading machine will be equipped with a set of cold heading molds for making the parts it needs, so it is necessary to make a set of molds specially for processing out figure 1 ball stud shown in

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