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Injection molding bolt for automobile spare tire and production process of injection molding bolt

A production process and bolt technology, applied in the direction of bolts, screws, mechanical equipment, etc., can solve the problems of scrapped injection-molded bolts and insufficient torsional strength, and achieve the effect of convenient installation and disassembly, high torsional strength, and increased output.

Inactive Publication Date: 2016-02-24
舒城县博力非标异型紧固件厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the bolt is under too much force, it is easy to rotate with the head of the injection molded part, resulting in the scrapping of the injection molded bolt. The root cause is that the serrations on the head of the bolt and the head of the injection molded part have insufficient torsional strength.

Method used

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  • Injection molding bolt for automobile spare tire and production process of injection molding bolt
  • Injection molding bolt for automobile spare tire and production process of injection molding bolt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] like figure 1 and figure 2 Shown, a kind of injection molding bolt of automobile spare tire comprises bolt body 3, and bolt body 3 bottom is provided with bolt tail 4, and bolt tail 4 is provided with thread 5, and bolt body 3 top is provided with bolt head 2, and bolt head 2 top Processed with a "ten"-shaped head 1; the length of the thread 5 on the bolt tail 4 is 32-60 mm; the stamping depth of the "ten"-shaped head 1 is 4-10 mm; the outermost side of the bolt head 2 is connected to the bolt body The distance of 3 is 2-5 millimeters.

[0023] When working, the bolt and the injection molded part are injection molded together, and the bolt and the device are fixed together through the thread 5, and the staff can tighten the injection bolt knob by hand. When excessive external force acts, the bolt will not rotate with the head of the injection molded part, which is safe and reliable, and the fixation between the injection molded bolt and the device is completed.

[0...

Embodiment 2

[0034] A kind of production technology step of automobile spare tire injection molding bolt is as follows:

[0035] (1) material selection and initial processing: select a bar stock with a diameter of 23 mm, and initially process the bar stock into a bar stock with a diameter of 20 mm and a length of 1250 mm on a lathe;

[0036] (2) Stamping forming: Put the pre-processed bar into the stamping die, stamp the head of the bar, and process a "ten"-shaped head;

[0037] (3) Finishing and machining threads: the bar is carried out to finish machining to obtain the final size, and the tail of the bar is extruded with an extruder to process the thread, and the length of the thread is 46 millimeters to obtain the preliminary product of the automobile spare tire injection bolt;

[0038] (4) Heat treatment: Firstly quench the finished product of the injection molded bolt for the spare tire of the automobile, then put it into the tempering furnace for tempering, take out the finished prod...

Embodiment 3

[0043] A kind of production technology step of automobile spare tire injection molding bolt is as follows:

[0044] (1) Material selection and initial processing: select a bar with a diameter of 30 mm, and process the bar on a lathe into a bar with a diameter of 28 mm and a length of 1400 mm. If the length of the bar exceeds 1400 mm, the material will be damaged. waste;

[0045] (2) Stamping forming: Put the pre-processed bar into the stamping die, stamp the head of the bar, and process a "ten"-shaped head;

[0046] (3) Finishing and machining thread: the bar is carried out to finish machining to obtain the final size, and the tail of the bar is extruded with an extruder to process the thread. The length of the thread is 60 millimeters to obtain the preliminary product of the automobile spare tire injection bolt;

[0047] (4) Heat treatment: Firstly quench the finished product of the injection molded bolt for the spare tire of the automobile, then put it into the tempering fu...

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Abstract

The invention discloses an injection molding bolt for an automobile spare tire and a production process of the injection molding bolt and relates to the technical field of injection molding bolts. The injection molding bolt comprises a bolt body. A bolt tail is arranged on the lower portion of the bolt body, a thread is arranged at the bolt tail, a bolt head is arranged on the upper portion of the bolt body, and a cross head is machined on the upper portion of the bolt head. The production process includes the following steps of firstly, material selection and preliminary machining, secondly stamping forming, thirdly, finish machining and thread machining, fourthly, thermal treatment and fifthly polishing treatment.

Description

technical field [0001] The invention relates to the technical field of injection molding bolts, in particular to an injection molding bolt for an automobile spare tire and a production process thereof. Background technique [0002] Bolt, a kind of fastener conventionally used in the middle of commercial production manufacture, and bolt is also referred to as the rice of industry. A bolt is a type of fastener consisting of a head and a cylindrical screw with external threads. It needs to be matched with a nut to fasten two parts with through holes. This form of connection is called a bolt connection. Unscrewing the nut from the bolt can separate the two parts, so the bolt connection is a detachable connection. Bolts are generally installed and disassembled with the help of tools. In comparison, injection-molded bolts are easier to install and disassemble than ordinary bolts. Because the injection-molded head of injection-molded bolts is relatively large, they can be install...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B35/00B21K1/46B23P15/00
Inventor 梅发银梅亮梅迪陈定柏都海峰
Owner 舒城县博力非标异型紧固件厂
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