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Shaping structure and method of special-shaped dual-head bolt

A technology of stud bolts and forming structures, applied in the direction of bolts, screws, nuts, etc., can solve the problems of reduced strength of special-shaped stud bolts, low material utilization rate, low production efficiency, etc., and achieve high product strength and high material utilization rate , the effect of improving production efficiency

Pending Publication Date: 2019-02-26
BINKE AUTOMOBILE FASTENER KUNSHAN
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This leads to a long production cycle and low production efficiency, and the material utilization rate of the machined products is low, and the streamline structure in the metal is faulted, resulting in a decrease in the strength of the prepared special-shaped stud bolts

Method used

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  • Shaping structure and method of special-shaped dual-head bolt
  • Shaping structure and method of special-shaped dual-head bolt
  • Shaping structure and method of special-shaped dual-head bolt

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Embodiment Construction

[0026] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that all the drawings of the present invention are in simplified form and use inaccurate proportions, which are only used to conveniently and clearly illustrate the purpose of the examples of the present invention.

[0027] The invention provides a forming structure of special-shaped stud bolts, wherein, such as figure 1 As shown, the special-shaped stud bolt includes a first straight section 1, a second straight section 2 located on the upper part of the first straight section 1, a third straight section 3 located at the lower part of the first straight section 1, and a third straight section 3 located at the bottom of the first straight section 1. The fourth straight section 4 at the tail, wherein, the first straight...

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Abstract

The invention discloses a shaping structure and method of a special-shaped dual-head bolt. The shaping structure of the special-shaped dual-head bolt includes a cold heading machine, a washing machine, a thread rolling machine, a heating device and an electroplating device, wherein the cold heading machine is used for shaping the special-shaped dual-head bolt, the washing machine is used for washing the special-shaped dual-head bolt, the thread rolling machine is used for conducting thread rolling on the special-shaped dual-head bolt, the heating device is used for heating the special-shaped dual-head bolt after thread rolling, and the electroplating device is used for electroplating the special-shaped dual-head bolt. According to the special-shaped dual-head bolt, bumps and a quincuncialhole are directly formed in a cold heading mode, no materials can be cut off during shaping, the utilization rate of the materials is high, the overall metal flow line of the interior of a product isensured, and the strength of the prepared product is high. No subsequent machining is needed, the production efficiency is improved, and the production cost is reduced.

Description

technical field [0001] The invention relates to the field of mechanical manufacturing, in particular to a forming structure and a forming method of special-shaped stud bolts. Background technique [0002] Special-shaped stud bolts are installed in the intermediate shaft of the steering wheel, and are used to connect important parts of the upper and lower steering rods. Since the special-shaped stud bolts are designed with areas that are difficult to form: bumps and plum blossom holes, the existing special-shaped stud bolts are shaped by cold heading machines, and then the difficult-to-form areas are machined. Machined out, and then use machining to control the accuracy of the product. As a result, the production cycle is long and the production efficiency is low, and the material utilization rate of the machined product is low, and the streamline structure in the metal is faulted, resulting in a decrease in the strength of the prepared special-shaped stud bolt. Contents o...

Claims

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Application Information

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IPC IPC(8): F16B35/00F16B33/06B23P15/00B21J13/02
CPCF16B33/06F16B35/00B21J13/02B23P15/00
Inventor 潘家云魏双来
Owner BINKE AUTOMOBILE FASTENER KUNSHAN
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