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Connecting rod bushing press-loading device and method

A technology of connecting rod bushing and press-fitting device, which is applied in the direction of metal processing, metal processing equipment, manufacturing tools, etc., can solve the problems of unusable and out-of-tolerance connecting rod assemblies, and achieve uniform and ideal press-in, reducing Moment, the effect of reducing manufacturing costs

Inactive Publication Date: 2009-02-11
广东四会实力连杆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Additionally, such irregularities can lead to out-of-tolerance conditions, rendering the entire linkage assembly unusable

Method used

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  • Connecting rod bushing press-loading device and method
  • Connecting rod bushing press-loading device and method
  • Connecting rod bushing press-loading device and method

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Experimental program
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Embodiment Construction

[0043] Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0044] Figure 6A It is a sectional view of the wedge-shaped bushing 16. The bushing 16 has an upper slope 80 and a lower slope 82, an inner lining surface 84, an outer lining surface 88, and a press-fit positioning process hole 86 on the inner wall of the bushing. Figure 6B It is a sectional view of the small end 12 of the connecting rod 10. The upper and lower end surfaces of the small end 12 of the connecting rod are composed of inclined surfaces 96, 98 and narrow planes 90, 92. The outer edge of the pin hole 94 of the small end 12 is processed with chamfers (not Shows). The bush pressing device and method provided by the present invention are Figure 6A The wedge bushing 16 shown is press-fit evenly into the Figure 6B In the pin hole 94 of the small end 12 of the connecting rod 10 shown, Figure 6C It is a cross-sectional view of the bushing 16 ...

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Abstract

The invention discloses a connecting rod bushing pressing device and a pressing method thereof. The device is used for pressing a wedge-shaped bushing into a pin hole at one end of a connecting rod, and comprises a horizontal connecting rod positioning mechanism used for the horizontal positioning of the connecting rod relative to the worktable plane, a clamping maintaining mechanism used for vertical positioning relative to the worktable plane, and a pressing head mechanism acting on the wedge-shaped bushing. The pressing head mechanism comprises an upper pressing head and a lower pressing head which are arranged oppositely and a driving element connected with the upper pressing head and the lower pressing head, the upper pressing head and the lower pressing head are coaxially arranged with the pin hole of the connecting rod, the opposite working end surfaces of the upper pressing head and the lower pressing head are bevel surfaces, and are respectively fitted with the upper bevel surface and the lower bevel surface of the wedge-shaped bushing. A positioning element for positioning the wedge-shaped bushing is arranged on the working end surface of the lower pressing head, the wedge-shaped bushing is sheathed on the positioning element, the upper pressing head and the lower pressing head tightly clamp the upper bevel surface and the lower bevel surface of the wedge-shaped bushing under the function of the driving element, and then the wedge-shaped bushing is pressed into the pin hole of the connecting rod. The moment of force generated during the pressing process in the prior art is eliminated, therefore, the wedge-shaped bushing can be pressed uniformly and ideally.

Description

technical field [0001] The present invention relates to a mechanical press-fitting device for connecting rod bushings, more particularly to a bushing press-fitting device for press-fitting a wedge-shaped connecting rod bushing into a connecting rod pin hole and a connecting rod bushing press-fitting device. method. Background technique [0002] In the prior art connecting rod of an internal combustion engine, one end is connected with the piston through a piston pin, and the other end is fastened on the crankshaft at a specific position. The end of the connecting rod with the pin hole is usually called the "little end" and the opposite end is usually called the "big end". A bushing is usually installed in the pin hole of the small end of the connecting rod. The material of the bushing is generally different from that of the connecting rod body to reduce friction and scraping, improve load transmission capacity and anti-seizure. [0003] Connecting rods in which the width o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P19/02B23P11/02
Inventor 黄压西杨志刚刘赞丰邓伟辉
Owner 广东四会实力连杆有限公司
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