Checking fixture structure for upper cover plate of catalytic converter

The technology of catalytic converter and cover plate is applied in the field of the inspection tool structure of the upper cover plate of the catalytic converter, which can solve the problems of complex detection process, low efficiency and long period, and achieve the effects of high accuracy, high efficiency and short period.

CN103630049AInactive Publication Date: 2014-03-12WUXI MACHINE MACHINERY MFG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2014-03-12
Estimated Expiration
Not applicable · inactive patent

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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.
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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 ...

Examples

Embodiment Construction

[0009] See Figure 1 ~ Figure 3 , which includes a bottom plate 1, where three corners of the bottom plate 1 are respectively provided with reference sleeves 2, the upper end surface of the bottom plate 1 is provided with a simulation block 3, the center of the simulation block 3 is an upper convex block structure 4, and the Positioning bumps 5 are arranged in the circumferential direction, and the height of the positioning bumps 5 is 3 mm. Under the detection state, the lower surface of the upper cover plate 6 of the catalytic converter is pressed against the upper end surface of the positioning bumps 5 at the corresponding position, and the raised block structure 4 Through the circular hole 7 of the upper cover plate 6 of the catalyst, the analog block 3 is provided with corresponding positioning pins 8 corresponding to the positions of the three holes 10 on the upper end surface of the upper cover plate 6 of the catalytic converter, and one of the positioning pins 8 is used ...