Novel engine main bearing cover tile locking trough testing fixture

Abstract

The invention provides a novel engine main bearing cover tile locking trough testing fixture. The middle part of a testing platform is provided with a neutral gear opening. A mandrel is transversely arranged from one side of the testing platform. The mandrel penetrates through the testing platform and penetrates out of the other side of the testing platform. Furthermore the other side of the testing platform is provided with a gauge stand. A dial gauge is arranged on the gauge stand, wherein the measuring head of the dial gauge corresponds with the top end of the mandrel. The upper part of the testing platform is provided with a clamping device. The pressing head of the clamping device corresponds with the portion above the neutral gear opening. The testing platform is provided with floating positioning pins at two sides of the neutral gear opening. The floating positioning pins correspond with pinholes at two sides of the main bearing cover. The mandrel is also provided with a mandrel cover at the position of the neutral gear opening. The mandrel sleeve is provided with a first clamping board and a second clamping board with different diameters, wherein the diameters respectively correspond with an upper limit dimension and a lower limit dimension of the tile locking trough. The novel engine main bearing cover tile locking trough testing fixture has an advantage of convenient use. The novel engine main bearing cover tile locking trough testing fixture has functions of testing the position dimension and the shape dimension of the tile locking trough, visually feeding a processing condition back through numbers of the dial gauge, and facilitating process adjustment.

Description

technical field [0001] The invention relates to a testing tool for auto parts, in particular to a new type of checking tool for a lock tile groove of a main bearing cover of an engine. Background technique [0002] If the size or position of the engine main bearing cover lock groove is out of tolerance, it will directly affect the installation of the crankshaft and even cause the cylinder block to be scrapped. Moreover, due to the shape of the lock groove itself, it is difficult to measure efficiently and accurately by ordinary detection methods. Main bearing caps such as figure 1 / 2 / 3, in the figure 1 is the main bearing cap, 2 is the lock bush groove, 3 is the bearing bush installation position, the middle of the main bearing cap body 1 is the bearing bush installation position 3, and the side of the bearing bush installation position 3 is provided with a lock The tile groove 2 is used to lock the bearing bush. [0003] The patent No. is: 2013202300340 provides a kind of...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem of how to efficiently and accurately measure the position, shape and size of the main bearing cover lock groove, improve the situation that the production efficiency is affected by the cumbersome operation of the process detection, and reduce the economic loss caused by the detection error. A new type of inspection tool for engine main bearing cover lock tile groove

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