Cold heading system and machining process for forming welding nut

A technology of welding nuts and cold heading, which is applied in the direction of nuts, metal processing equipment, connecting components, etc., can solve the problems of easy fracture and insufficient strength of welding nuts, and achieve the effects of not easy to break, reduce the defective rate, and have strong strength

Pending Publication Date: 2020-12-04
宁波清熙金属智能科技有限公司
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AI Technical Summary

Problems solved by technology

[0003] At present, in the process of processing and producing welding nuts, cold heading of wire rods requires punching of nut body wire rods, and cold heading equipment is used to punch out a blind hole in the center of the nut body. Generally, a blind hole is formed at one time. The flange part on the body is also made of a one-time pier, so that the weld nut after the pier is formed is not strong enough and is easy to break

Method used

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  • Cold heading system and machining process for forming welding nut
  • Cold heading system and machining process for forming welding nut
  • Cold heading system and machining process for forming welding nut

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Embodiment Construction

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. Wherein the same components are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "bottom" and "top "Face", "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.

[0024] refer to Figure 1 to Figure 6 As shown, a cold heading system for forming weld nuts in this embodiment includes a first cold heading equipment, a second cold heading equipment, a third cold heading equipment, a fourth cold heading equipment and a fifth cold heading equipment, the first cold heading equipment The cold heading equipment comprises a first cold heading die 1, the second cold heading equipment comprises a second cold heading die 2,...

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Abstract

The invention relates to the technical field of welding nut machining, and discloses a cold heading system and a machining process for forming a welding nut. According to the technical scheme, the cold heading system is characterized by comprising a first cold heading device, a second cold heading device, a third cold heading device, a fourth cold heading device and a fifth cold heading device, the first cold heading device comprises a first cold heading mold, and a cavity for forming a fillet is formed in a first station chamfering mold, so that a filleted corner is formed at one end of a wire rod, and a first semi-finished product is obtained. A flange part of the welding nut is formed through a fourth cold heading mold, and a second cold heading mold carries out point fixing on the lower portion of a second station, so that a pit is formed in the top face of the lower portion of the second station, preparation is made for forming a blind hole of the welding nut, and the straightnessof the pit is guaranteed when the pit depth is increased through a third cold heading mold and the fourth cold heading mold; and the blind hole of the welding nut is formed through a fifth cold heading mold, so that in the cold heading process of the wire rod, the strength of the machined welding nut is high, and the molecular density in the welding nut is high.

Description

technical field [0001] The invention relates to the technical field of welding nut processing, in particular to a cold heading system and processing technology for forming weld nuts. Background technique [0002] As a fastener, bolts are widely used in daily production and life. Welding nuts are a kind of nuts suitable for welding outside the nuts. They are generally made of weldable materials and are thicker and suitable for welding. [0003] At present, in the process of processing and producing welding nuts, cold heading of wire rods requires punching of nut body wire rods, and cold heading equipment is used to punch out a blind hole in the center of the nut body. Generally, a blind hole is formed at one time. The flange part on the main body is also made of one-time pier, so that the strength of the weld nut after the pier is formed is insufficient and it is easier to break. Contents of the invention [0004] In view of the deficiencies in the prior art, the purpose o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21K1/70B21J5/02B21J5/08B21J13/02
CPCB21J5/02B21J5/08B21J13/02B21K1/701
Inventor 范旭超范艳普王文
Owner 宁波清熙金属智能科技有限公司
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