Device for detecting positions of bolt mounting holes

An inspection device and mounting hole technology, which is applied to measuring devices, mechanical devices, mechanical measuring devices, etc., can solve problems such as lack of inspection tools, and achieve the effects of convenient inspection, easy production and reasonable design.

Inactive Publication Date: 2011-06-08
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in production practice, there is a lack of such an inspection tool

Method used

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  • Device for detecting positions of bolt mounting holes
  • Device for detecting positions of bolt mounting holes
  • Device for detecting positions of bolt mounting holes

Examples

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Embodiment Construction

[0012] Hereinafter, the present invention will illustrate the specific structure of the inspection device by taking two mutually assembled parts of the engine exhaust manifold and the heat shield as an example.

[0013] Due to the influence of the exhaust gas, the cast iron exhaust manifold of the engine often has a high temperature and is easy to cause burns to people. Therefore, a heat shield is generally installed on its surface, and the two are connected by bolts. Therefore, there is a corresponding relationship between the exhaust manifold and the bolt installation holes of the heat shield. Since the shape of the exhaust manifold is a curved surface, the location of each mounting hole is usually a spatial curved surface structure. It is difficult to control the position tolerance of the bolt mounting holes of the exhaust manifold and the heat shield during the drilling and punching process. If the control is not good, it is easy to dislocate, thus affecting the assembly, ...

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Abstract

The present invention provides a device for detecting the positions of bolt mounting holes, which is used for detecting the correctness of positions of the bolt mounting holes distributed on curved faces of two parts assembled by bolts. The device comprises a curved plate, wherein the curved plate is consistent with the space curved face of the distribution positions of the bolt mounting holes on the parts; a position on a concave surface of the curved plate, which corresponds to at least one bolt mounting hole, is provided with a fixed end cone; positions on the concave surface, which correspond to the rest of bolt mounting holes on the part, are provided with via holes correspondingly one by one and also provided with movable end cones matched with the via holes one by one; the aperture of the via holes is larger than that of the fixed end cone, and the size of the fixed end cone and the movable end cones is equivalent to the size of the bolts for connecting the two parts. The invention can conveniently detect the positions of the bolt mounting holes on the assembled parts with curved space structures, and has the advantages of reasonable design, simple technology, easy manufacture, convenient use, and the like.

Description

technical field [0001] The invention is a device for checking the position of mounting holes, in particular to a device for checking the correctness of the positions of bolt mounting holes distributed on two curved surfaces of parts assembled by bolts Background technique [0002] In the assembly of automobile parts, it is often encountered that the assembly joint surface of two assembly parts is a curved surface, and at the same time bolts are used for connection and assembly. For example, the assembly of the exhaust manifold of the automobile engine and the heat shield is a this form. In this case, the bolt mounting holes are distributed on the curved surfaces of the two parts. In the process of drilling and punching, it is difficult to control the position tolerance of the bolt mounting holes in the process, and if the control is not good, it will easily cause two parts. The corresponding bolt mounting holes of each part are misaligned, which affects the assembly, which ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B5/00
Inventor 冯敏瞿尚胜宫长锦
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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