Manufacturing process of screw nut

A manufacturing process and screw nut technology, applied to bolts, threaded fasteners, connecting components, etc., can solve the problems of wasting raw materials, adding redundant processes, labor and time, etc., to achieve reliable product quality assurance and reduce labor intensity , the effect of cost control

Inactive Publication Date: 2013-09-18
苏州新凌高强度紧固件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, screw nuts need to go through multiple processing procedures such as drilling and cutting to complete the processing of screw nuts from raw materials to finished products. This production process not only increases redundant processes but also wastes raw materials (cutting and drilling need to cut excess waste ), labor-intensive, time-consuming, and at the same time require a high level of operator skills and proficiency, too many human factors involved in processing, can not ensure the quality of production, resulting in unstable product quality, not suitable for mass production

Method used

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  • Manufacturing process of screw nut
  • Manufacturing process of screw nut
  • Manufacturing process of screw nut

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Experimental program
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Embodiment Construction

[0018] The present invention is described below in conjunction with accompanying drawing.

[0019] as attached figure 1 Shown is the screw nut manufacturing process of the present invention, taking the product specification of M5ⅹ7.5ⅹ∮8.6ⅹ17㎜ as an example, the metal wire is cut to 17.5mm, so that its volume is equal to the volume of the formed screw nut; Then use a general-purpose multi-station cold heading machine to pre-upset one end of the blank, and upset the head 1 of the female nail, so that the size of the head 1 of the female nail is slightly larger than the diameter of the remaining cylindrical surface, and at the same time punch out the bottom of the remaining cylindrical surface. Locate the small hole 2 and fillet the outer end face of the head with a bullnose; the third step is to use the method of punching and drawing a hole with a mold to draw a deep hole 3 of ∮4.68ⅹ10㎜ at the bottom of the female nail, and at the same time pour the inner end face of the head A...

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Abstract

The invention discloses a manufacturing process of a screw nut. The manufacturing process comprises the following steps of (1) cutting, (2) preliminary upsetting, (3) perforating, and (4) final upsetting and forming. According to the manufacturing process of the screw nut, the entire machining process is divided into multiple steps, a blank is stamped to form a product, no waste is produced, the machining speed and the machining efficiency are high, the cost is effectively controlled, the labor intensity of workers can be alleviated, and the product quality can be reliably guaranteed.

Description

technical field [0001] The invention relates to a manufacturing process of screw nuts. Background technique [0002] The technique of the present invention is mainly aimed at connecting screw nuts for scissors. In the previous screw nut processing technology, the first step is to use the head of the pre-upset screw nut; the second step is to drill the center hole by scribing; the third step is to punch the compression rod through the mold; the fourth step is to cut the female screw rod by machining Straight end face. In this way, screw nuts need to go through multiple processing procedures such as drilling and cutting to complete the processing of screw nuts from raw materials to finished products. This production process not only increases redundant processes but also wastes raw materials (cutting and drilling need to cut excess waste ), labor-intensive and time-consuming, and at the same time require high technical level and proficiency of operators, too many human facto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21K1/46B21D22/02
Inventor 孙丁
Owner 苏州新凌高强度紧固件有限公司
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