Bolt-heating upsetting-forming technology
A forming process and bolt heating technology, applied in metal processing equipment, threaded products, applications, etc., can solve the problems of slow production efficiency, high raw material consumption and high production cost, reduce labor intensity, improve product quality, save money The effect of production costs
Inactive Publication Date: 2012-07-04
WUXI TIANLONG HIGH STRENGTH BOLT
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Problems solved by technology
The rough material with the size of the middle step was originally used, and it was turned with two thimbles on a lathe. The raw material consumption was high, the production efficiency was slow, the labor intensity of the workers was high, and the above production costs were high, resulting in uncompetitive products
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Embodiment Construction
[0019] The present invention will be further described below in conjunction with specific drawings and embodiments.
[0020] A kind of bolt heating upsetting forming process comprises the following steps:
[0021] a. Use a clamp to fix one end of the raw material bolt, and the other end of the raw material bolt is offset against the axial pushing mechanism, which adopts a hydraulic cylinder;
[0022] b. Use the heating mechanism to heat the pre-upset forming part of the raw material bolt to 750~850℃, and control the heating time at 3.5~4 seconds. The heating mechanism adopts a high-frequency induction heating machine manufactured by Zhengzhou Guoyun Electronic Technology Co., Ltd.;
[0023] c. The axial thrust mechanism exerts axial thrust on the other end surface of the raw material bolt, and the pressure on the other end surface of the raw material bolt is 8~10Mpa, so that the diameter of the heated part of the raw material bolt becomes thicker, and the semi-finished formed ...
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The invention discloses bolt-heating upsetting-forming technology, which includes: fixing a raw material bolt, heating pre-upsetting-forming positions of the raw material bolt, incremental launching thickening, taking down a semi-manufactured forming bolt, rotation forming by fixing a rotation idler wheel and a translation rotation idler wheel and taking down a finished forming bolt. The technology does not destroy material fiber flow direction and improves product quality. Technology production efficiency of the bolt-heating upsetting-forming technology is improved by three times compared with traditional lathe two-thimble turning, and labor intensity of workers is reduced. Compared with the prior art, the bolt-heating upsetting-forming technology obviously can choose raw material bolts with smaller diameter, so that production cost can be saved.
Description
technical field [0001] The invention belongs to the technical field of bolt production, and in particular discloses a bolt heating and upsetting forming process. Background technique [0002] With the maturity of diesel engine technology and the promotion of mass production, it is imperative to require the same quality and low-cost production. The middle part of the high-strength bolts for the cylinder head of the diesel engine has a step, and the two ends of the fine-sized process materials are used. The rough material with the size of the middle step was originally used, and it was turned with two thimbles on a lathe. The raw material consumption is high, the production efficiency is slow, the labor intensity of the workers is high, and the above production costs are high, resulting in uncompetitive products. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a bolt heating upsetting formin...
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IPC IPC(8): B21J5/08B21J1/06B21H3/04
Inventor 卫国清
Owner WUXI TIANLONG HIGH STRENGTH BOLT