Cold heading die and cold heading forming process

A cold heading and mold technology, applied in the direction of manufacturing tools, metal processing equipment, forging/pressing/hammer devices, etc., can solve the problem that it is difficult to meet the mass production of tooth-shaped heads

Pending Publication Date: 2021-07-27
FAWER AUTOMOTIVE PARTS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The first purpose of the present invention is to provide a cold heading die to solve the technical problem that the existing technology is difficult to meet the requirements of mass production of toothed heads to a certain extent
[0004] The second purpose of the present invention is to provide a cold heading forming process to solve the technical problem that the existing technology is difficult to meet the requirements of mass production of toothed heads to a certain extent

Method used

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  • Cold heading die and cold heading forming process
  • Cold heading die and cold heading forming process
  • Cold heading die and cold heading forming process

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Embodiment 1

[0063] The cold heading die provided in this embodiment is used for tooth-shaped cold heading forming of the head of the bolt.

[0064] see Figure 1 to Figure 9 and combine Figure 10 to Figure 12 As shown, the cold heading die provided in this embodiment is used for processing bolts with toothed heads. The cold heading die includes a movable die set 2, a static die set 1, a punch assembly 3 and a waste ejection assembly 4.

[0065] Hereinafter, the above-mentioned components of the cold heading die will be described in detail.

[0066] A tooth-shaped machining hole 50 is formed inside the static mold casing 1 , and a cutting edge 51 is provided on an edge of the tooth-shaped processing hole 50 near the movable mold casing 2 . Wherein, the edges include not only the edges extending in the radial direction of the tooth-shaped processing hole 50 , but also the edges extending in the circumferential direction of the tooth-shaped processing hole 50 . In addition, the cutting e...

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PUM

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Abstract

The invention relates to the technical field of bolt cold heading machining forming, in particular to a cold heading die and a cold heading forming process. The cold heading die comprises a movable die sleeve, a static die sleeve, a punch assembly and a waste push-out assembly, wherein a tooth-shaped machining hole is formed inside the static die sleeve, a cutting edge is arranged at the end part, close to the movable die sleeve, of the edge of the tooth-shaped machining hole, the punch assembly is arranged on the movable die sleeve, at least the part, within the preset distance, of the punch assembly matches with the tooth-shaped machining hole, and the movable die sleeve can move relative to the static die sleeve so as to drive the punch assembly to go in and out of the tooth-shaped machining hole, the waste push-out assembly comprises a connecting base and a plurality of material pushing pins connected to the connecting base, and the connecting base can move along the movable die sleeve so that the material pushing pins can enter and exit from tooth gaps. The cold heading die is adopted in the cold heading forming process, according to the cold heading die and the cold heading forming process, waste can be pushed out in time after the tooth-shaped head is formed, cold heading forming of the tooth-shaped head becomes possible, and the requirement for mass production of the tooth-shaped head can be met.

Description

technical field [0001] The invention relates to the technical field of bolt cold heading processing and forming, in particular to a cold heading die and a cold heading forming process. Background technique [0002] For bolts with toothed heads, due to the complex structure of the toothed head and high dimensional accuracy requirements, in related technologies, the toothed head is generally processed by milling and precision extrusion. The efficiency is low, and the cost of processing equipment and molds is high, so it is difficult to meet the requirements of mass production of toothed heads. Contents of the invention [0003] The first purpose of the present invention is to provide a cold heading die to solve the technical problem that the existing technology is difficult to meet the requirements of mass production of toothed heads to a certain extent. [0004] The second purpose of the present invention is to provide a cold heading forming process to solve the technical ...

Claims

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Application Information

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IPC IPC(8): B21J13/02B21J5/08B21K1/46B21K27/06
CPCB21J5/08B21J13/02B21K1/46B21K27/06
Inventor 赵辉
Owner FAWER AUTOMOTIVE PARTS
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