Assembly tool for connecting rod caps of engines

Abstract

The invention discloses an assembly tool for connecting rod caps of engines, which comprises a frame, a clamping mechanism and a pre-tightening mechanism. The clamping mechanism and the pre-tightening mechanism are arranged on the frame, the clamping mechanism at least consists of a clamping jaw component used for clamping a connecting rod cap and placing the connecting rod cap on a corresponding portion of a connecting rod mounting position, the pre-tightening mechanism at least comprises sleeves for pre-tightening connecting bolts of the connecting rod cap, and a force application rod of each sleeve is at least longer than a crank of a crankshaft. The assembly tool is applicable to assembling the connecting cap of an engine, a connecting rod and a connecting rod cap breaking separating surface can be protected in an assembly process, the connecting rod cap is completely meshed with a connecting rod body, work reliability of the connecting rod and even work reliability of an integral machine can be well guaranteed, the connecting rod cap can be conveniently assembled in a narrow connecting rod cap assembly space, simultaneously, bolts of the connecting rod can be pre-tightened, assembly efficiency is greatly improved, takt time of large-scale assembly is saved, the purpose of reducing production cost of the integral machine is finally achieved, and the assembly tool is particularly suitable for meeting requirements of batch production and assembly of multi-valve diesel engines.

Description

technical field [0001] The invention relates to an auxiliary device for assembly of mechanical equipment, in particular to an assembly auxiliary device for an engine connecting rod cover. Background technique [0002] Connecting rod breaking technology is a new connecting rod manufacturing process, which is a major change to the traditional processing technology, and has become an important symbol of the development level of the engine connecting rod manufacturing industry. Due to the regular fracture of the gap, the fractured connecting rod presents the characteristics of canine teeth. Using the mutual meshing of the fractured surface for positioning, the positioning is more accurate, and the traditional positioning pin positioning is cancelled; and because the fractured separation surface is convex and concave Unevenness increases the area of ​​the joint between the connecting rod cover and the connecting rod, and increases the bearing capacity and shear resistance of the ...

AI Technical Summary

Problems solved by technology

At this time, the pistons of the 2nd and 3rd cylinders are at the top dead center position, and the expansion joint surface of the connecting rod is located in the inner cavity of the cylinder. At the same time, because the cylinder adopts a structure that is separated up and down along the centerline of the crankshaft, the assembly space of the connecting rod cover is narrow. Difficult to assemble by hand

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