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Method of and apparatus for cracking connecting rod

A technology of connecting rod and piston rod, applied in the direction of connecting rod, positioning device, shearing device, etc., can solve the problems of wasting time, redundant, and reducing the production efficiency of connecting rod 5.

Inactive Publication Date: 2005-02-09
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the number of connecting rods 5 to be handled increases, the operation of inserting the booster hose 8 through the larger end hole 3a of the connecting rod 5 becomes more tedious and time-consuming, resulting in the risk of breaking the connecting rod 5 Reduced production efficiency

Method used

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  • Method of and apparatus for cracking connecting rod
  • Method of and apparatus for cracking connecting rod
  • Method of and apparatus for cracking connecting rod

Examples

Experimental program
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Embodiment Construction

[0019] Figure 1A shows a perspective view of a connecting rod 30 as a workpiece for which the present invention is to be applied; and Figure 1B A perspective view of the connecting rod 30 broken into a cap 32 and a rod 34 is shown.

[0020] Such as Figure 1A with 1B As shown, the connecting rod 30 has: a larger end 38, which includes the integral structure of the cap body 32 and the rod 34, and defines a substantially circular joint hole 36 therebetween; and a smaller end 40, which The smaller end 40 is located away from the larger end 38 . The connecting rod 30 may be integrally manufactured by casting, forging, or the like.

[0021] The larger end 38 has a pair of bolt holes 42a, 42b defined on opposite sides of the larger end 38 by drilling means such as a drill bit or the like. During the process of assembling the engine, bolts (not shown) are threaded from the cap body 32 into the respective bolt holes 42 a , 42 b , thereby securing the cap body 32 to the rod 34 ....

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PUM

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Abstract

A preload is applied to a wedge pressed in between a pair of spreaders by a preloading mechanism to press the spreaders against an inner surface of a joint hole defined in a larger end of a connecting rod. While the spreaders are pressed against the inner surface of the joint hole, a movable table with weights placed thereon is caused to drop into impingement against a flange coupled to an end of a shaft. The shaft is pulled downwardly to apply an impact load to the wedge, which is coupled to the shaft, in the direction in which the wedge is pressed in, thereby fracturing the larger end into a cap and a rod.

Description

technical field [0001] The present invention relates to a method and apparatus for fracturing a connecting rod as part of a vehicle engine, and more particularly to a method for fracturing a one-piece connecting rod having a larger end and a smaller end so that the larger end is broken Methods and apparatus for forming caps and rods. Background technique [0002] Heretofore, connecting rods interconnecting a piston pin and a crank pin have been widely used in vehicle engines. Each connecting rod has a larger end that connects to the crank pin and a smaller end that connects to the piston pin. To make a connecting rod, it is common to make a single piece connecting rod with a larger end and a smaller end, and then break the larger end into a cap and a rod. [0003] A common method of disconnecting the connecting rod is described below. [0004] as attached Figure 8 As shown, a one-piece link 5 comprises a shank 1 having a smaller end 2 and a larger end 3 having a cap 4 in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C7/00B23D31/00F16C9/04
CPCB23D31/003F16C9/045Y10T225/30Y10T225/371Y10T225/10
Inventor 百濑保雄太田薰雄山本知彦
Owner HONDA MOTOR CO LTD