Screw socket hexagon punching die

A punching die and screw technology, which is applied in the field of punching dies for hexagonal punching of the screw head, can solve the problems of poor surface roughness, low service life and easy breakage of the die, so as to ensure product quality, improve service life and avoid breakage Effect

Inactive Publication Date: 2012-07-25
苏州新凌高强度紧固件有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of processing, if the product is to be obtained smoothly, the die must use a large punching force. In actual use, these dies have a short service life and are easy to break, which also makes it difficult to control the product quality; at the same time, due to the poor surface roughness of the die itself , the appearance quality of the product is also difficult to improve

Method used

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  • Screw socket hexagon punching die
  • Screw socket hexagon punching die
  • Screw socket hexagon punching die

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Embodiment Construction

[0014] The present invention is described below in conjunction with accompanying drawing.

[0015] attached figure 1 , 2 , 3 is a screw hexagon socket punching die according to the present invention, including a punching die body 1, a die cavity 2 is provided in the die die body 1, and a punch that can slide up and down along the die cavity 2 is provided in the die cavity 2 3; the bottom of the punch 3 is coaxially provided with a punch 4; the outer diameter of the punch 3 is larger than the outer diameter of the punch 4; an elastic device 5 is provided in the mold cavity 2 and below the punch 3 . The elastic device 5 is composed of a connecting plate and a spring 7 arranged at the bottom of the connecting plate 6; the elastic device 5 has two groups, which are symmetrically arranged on both sides of the punching needle 4; the head end of the punching needle 4 is provided with Six cutting edges 8.

[0016] The above-mentioned embodiments are only to illustrate the technica...

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Abstract

The invention claims a screw socket hexagon punching die, comprising a punching die main body, a die cavity is arranged in the punching die main body, a punching head sliding up and down along the die cavity is arranged in the die cavity; a punching needle is coaxially arranged at bottom of the punching head; an outside diameter of the punching head is greater than the outside diameter of the punching needle; an elastic device is arranged below the punching head in the die cavity. In the screw socket hexagon punching die of the invention, when the socket hexagon is processed, an upper die is combined with a lower die, the punching head drives the punching needle to punch head of the screw downwards, when the punching neeld punches to certain depth, the bottom of the punching head presses the elastic device, and the elastic device has relax action on impact force so as to prevent the punching needle from breaking off during the extrusion process and prolong the service life of the punching neeld; six cutting edges are arranged on head end of the punching needle so as to ensure the quality of the products.

Description

technical field [0001] The invention relates to a mold, in particular to a punching die used for punching inner hexagonal holes of screw heads. Background technique [0002] At present, hexagon socket head screws are mainly formed by cold heading, and the hexagonal shape of the head is generally extruded by an integral hexagon socket die. In the process of processing, if the product is to be obtained smoothly, the die must use a large punching force. In actual use, these dies have a short service life and are easy to break, which also makes it difficult to control the product quality; at the same time, due to the poor surface roughness of the die itself , The appearance quality of the product is also difficult to improve. SUMMARY OF THE INVENTION [0003] In view of the above-mentioned technical problems, the object of the present invention is to propose a hexagonal screw die with long service life and good product quality control. [0004] The technical solution of the ...

Claims

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Application Information

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IPC IPC(8): B21D28/34
Inventor 饶陈伟
Owner 苏州新凌高强度紧固件有限公司
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