Checking fixture structure for upper cover plate of catalytic converter

Abstract

The invention provides a checking fixture structure for an upper cover plate of a catalytic converter, and aims to realize the advantages of simple detection process, short period, high efficiency and high accuracy on the upper cover plate of an automobile catalytic converter. The checking fixture structure comprises a bottom plate and a gap go-no go gauge, wherein benchmark sleeves are arranged on three corners of the bottom plate respectively; a simulation block is arranged on the upper end face of the bottom plate; an upward projecting circular block structure is formed at the central position of the simulation block; positioning lugs are distributed along the circumferential direction of the simulation block; the upward projection height of each positioning lug is 3 millimeters; in a detection state, the lower surface of the upper cover plate of the catalytic converter sticks close to the upper end face of each positioning lug at a corresponding position, and an upward projecting square block structure passes through a circular hole in the upper cover plate of the catalytic converter; the simulation block is provided with corresponding positioning pins at positions, which correspond to three hole slots in the upper end face of the upper cover plate of the catalytic converter, on the simulation block; one of the positioning pins is taken as a detection pin; the diameter of the thick end of the gap go-no go gauge is 3.5 millimeters, and the diameter of the narrow end of the gap go-no go gauge is 2.5 millimeters.

Description

technical field [0001] The invention relates to the technical field of the inspection fixture structure of auto parts, in particular to a inspection fixture structure for an upper cover plate of a catalytic converter. Background technique [0002] Existing detection of the upper cover plate of the automobile catalytic converter, which uses the inspection tool to detect the data of each part separately, and then compares it with the standard value to determine whether the upper cover plate of the automobile catalytic converter is qualified. The detection data measured by the tool still needs to be finely trimmed. The detection process is complicated, the cycle is long, the efficiency is low, and the error is large. Contents of the invention [0003] In view of the above problems, the present invention provides a detection tool structure for the upper cover of the catalytic converter, which makes the detection process of the upper cover of the catalytic converter of the ...

AI Technical Summary

Problems solved by technology

[0002] Existing detection of the upper cover plate of the automobile catalytic converter, which uses the inspection tool to detect the data of each part separately, and then compares it with the standard value to determine whether the upper cover plate of the automobile catalytic converter is qualified. The measured test data still needs to be finely trimmed. The test process is complicated, the cycle is long, the efficiency is low, and the error is large

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