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Lining machining method

A processing method and bushing technology, which is applied to bearing components, shafts and bearings, mechanical equipment, etc., can solve problems such as poor environmental performance, impact on the service life of bushings, and large loads, and achieve good environmental performance and improved working environment. Effect

Active Publication Date: 2011-02-23
湖北安达精密工业有限公司
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Problems solved by technology

Due to the defects of this traditional processing technology, the bushes are often damaged in advance during use, which affects the life of the internal combustion engine. In particular, this traditional processing technology has always had defects in controlling the roundness of the bushing. Through the traditional processing method, the roundness of the bush can only be guaranteed above 0.015mm. For high-strength bushes, especially connecting rod bushes, due to the large load on the connecting rod, the roundness of the bush itself affects its force distribution. , the service life of the bushing is greatly affected
In addition, this traditional method of processing bushings produces metal shavings during the working process, that is, the grinding machine produces metal shavings, and requires a vacuum cleaner for processing, so the environmental protection performance is poor

Method used

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with accompanying drawing:

[0025] A processing method of the bushing in the present invention, the following steps are carried out on the copper-based bimetallic steel strip: 1) blanking; 2) punching the buckle; 3) punching U-shaped; 4) full circle; and then completing the lining by extrusion The surface roughness and wall thickness required by sleeve 1 are achieved through extrusion, that is, three processes of finishing the circle, grinding the outer circle, and boring the inner circle are completed by extrusion to complete the processing of the bush 1. The power required for extrusion is air pressure or hydraulic pressure, and the pressure and moving speed required for extrusion can be continuously adjusted. The fixed die during extrusion is a die structure 3, and the other corresponding extruding movable die is a punch structure 2, and of course the fixed die can also be a punch structure. Th...

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Abstract

The invention discloses a lining machine method, which comprises the following copper-based double-metal steel strip processing steps: 1) feeding; 2) punching to form hasps; 3) punching to form a U shape; 4) rounding; 5) finely rounding; 6) milling excircle; and 7) boring inner circle. The method is characterized in that the step 5 of finely rounding, the step 6 of milling excircle and the step 7of boring inner circle are accomplished by one extrusion process for forming the required surface roughness and wall thickness of the lining. The method has high economy and high processing property and can improve an on-site working environment greatly.

Description

technical field [0001] The invention relates to the technical field of sliding bearing processing, in particular to a processing method for a bushing. Background technique [0002] Sliding bearings for internal combustion engines mainly include bearing bushes, bushings, flanged bushes and thrust plates. Bushings are used extensively inside internal combustion engines, including connecting rods, camshaft bushings, rocker arm bushings, and more. It can be said that as an important sliding bearing part, the bushing is an important part in the internal combustion engine, and the performance of the bushing directly affects the performance of the engine. With the rapid development of China's internal combustion engine market, the demand for bushings continues to increase. [0003] The traditional bushing processing method is 1) Blanking. Since the copper alloy steel strip is a whole plate, according to the specific size of the bushing, it needs to be blanked first, such as figu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C33/06
Inventor 刘会学
Owner 湖北安达精密工业有限公司
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