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Slight warping detecting method for small-sized annular part

A detection method, a ring technology, applied to measuring devices, instruments, and optical devices, etc., can solve the problems that are not suitable for rapid detection of small ring parts

Active Publication Date: 2014-11-19
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing methods are not suitable for rapid detection of micro-warpage of small ring parts

Method used

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  • Slight warping detecting method for small-sized annular part

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Embodiment Construction

[0018] The specific implementation manner of the patent of the present invention will be described in detail below in conjunction with the technical scheme and accompanying drawings.

[0019] For the small ring part 3 with an outer diameter of 6mm, an inner diameter of 5mm, and a thickness of 0.2mm, the micro-warpage rapid detection is performed.

[0020] Place the surface 2 on the silicon wafer as the mirror plane, and use SU-8 glue photolithography on it to make a diameter of boss. The thickness of the SU-8 glue is 0.15mm, and this part is used as the positioning column 4 when the small ring part 3 is placed.

[0021] Place the small ring part 3 on the positioning column 4, at this time, the center of the small ring part 3 coincides with the center of rotation of the rotary platform 1. Adjust the displacement platform 7, drive the industrial CCD camera 5 fixed on it to align with the gap 2 between the small ring part 3 and the mirror image placement surface, adjust the fo...

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Abstract

The invention belongs to the field of precision detection, and relates to a slight warping detecting method for a small-sized annular part. A device comprises two parts: one part is a supporting module of the small-sized annular part, a mirror image placing surface is fixed to a rotating platform, and a positioning column used for positioning the small-sized annular part is fixed to the mirror image placing surface; the other part is a visual acquisition module which is mainly used for realizing vision inspection for the small-sized annular part; an industrial CCD camera is fixed to a camera placing plate through a fastening piece; the lower surface of the camera placing plate is fixed to a displacement platform. The detecting method utilizes machine vision to measure an interval generated by the annular part and a placing surface, and the measured data is considered as a standard for judging slight warping of the small-sized annular part; a mirror material is adopted as the placing surface, so that warping quantity shot by the camera is amplified two times as the actual warping quantity and observed conveniently; the positioning column is adopted to ensure that the center of the small-sized annular part and a rotating center coincide; the rotating platform can ensure that warping values of the part can be observed from different angles.

Description

technical field [0001] The invention belongs to the field of precision detection, and relates to a micro-warping detection method of small ring parts, which is used for pre-assembly screening of parts in precision assembly technology. Background technique [0002] Precision assembly is the technology of assembling multiple parts into complex systems through accurate manipulation, positioning and other methods. With the development of industrial production and science and technology, the development of automated and semi-automated assembly systems has become an important research field, which has also brought some new problems, among which the consistency of parts processing has a particularly obvious impact on assembly accuracy. The geometric dimensions of the parts can be controlled by refining the tolerance zone, and the shape and position tolerances of small parts, such as flatness, are usually not required in the manual assembly process. Therefore, when automatic assembl...

Claims

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Application Information

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IPC IPC(8): G01B11/30
Inventor 王晓东单镇东罗怡严卫
Owner DALIAN UNIV OF TECH
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