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Component different-surface-parallel-hole form and position deviation visual measuring method and device

A form-position deviation and visual measurement technology, applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems of complex measurement steps, easily damaged parts and measurement equipment, time-consuming measurement process, etc., to achieve fast measurement process, reduce Measuring costs, the effect of improving product productivity

Inactive Publication Date: 2015-09-09
NORTH CHINA UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

[0005] In order to overcome the deficiencies of the prior art, the present invention provides a visual measurement method and device for the shape and position deviation of parallel holes on different surfaces of parts, which solves the existing problems in the prior art such as complicated measurement steps, long time-consuming measurement process and easily damaged parts and Problems with measuring equipment

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  • Component different-surface-parallel-hole form and position deviation visual measuring method and device
  • Component different-surface-parallel-hole form and position deviation visual measuring method and device

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Embodiment Construction

[0054] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0055] refer to figure 1 and figure 2 , in order to capture multiple images of the measured part 4 in different poses, and to ensure the relative stability of the position information of the measured part 4 during the measurement process, the preferred embodiment of the present invention firstly provides a shape deviation The visual measuring device comprises a camera and a part fixing table 2, wherein the camera is a binocular camera 1, and is vertically installed on the beam 4 of the camera bracket 3, and the parts fixing table 2 is a rotatable fixing table, And horizontally arranged under the binocular camera 1, the binocular camera 1 is parallel in space and its optical axis is perpendicular to the end surface of the part fixing table 2.

[0056] The part fixing table 2 includes a bottom fixed disc 5 and an upper rotatable disc 6, and ...

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Abstract

The invention provides a component different-surface-parallel-hole form and position deviation visual measuring method and device. The method comprises the following steps which are carried out in sequence: [1] binocular camera parameter calibration; [2] different-surface-parallel-hole feature analysis and treatment of a component entity image; [3] different-surface-parallel-hole match feature point extraction of the component entity image; [4] component different-surface-parallel-hole three-dimension information reconstruction, and analysis and calculation of form and position deviation parameters such as diameter, circular degree, hole pitch and depth distribution of holes. According to the invention, measurement of the component feature hole form and position deviation can be completed rapidly and effectively, precision requirements of high-precision measurement can be met, and advantages of simple measurement operation, low equipment maintenance cost and the like can be achieved.

Description

technical field [0001] The invention relates to the field of industrial part measurement, in particular to a visual measurement method and device for shape and position deviation of parallel holes on different surfaces of parts. Background technique [0002] With the progress of the manufacturing industry, more complex new mechanical products appear, and the requirements for the measurement accuracy and measurement time of complex industrial parts are getting higher and higher. Innovating product measurement methods and reducing the time used for measurement are key steps to ensure product quality and improve production efficiency. [0003] Parts with the characteristics of parallel holes on different surfaces have the characteristics of wide application and large quantity in the industrial field. For example, common engine boxes, compressor boxes on household appliances (such as refrigerators, air conditioners), etc., all contain different surfaces that require high precisi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/00G01B11/08G01B11/24G01B11/14G01B11/22
Inventor 张从鹏侯波罗学科邢庆辉赵康康鲁磊
Owner NORTH CHINA UNIVERSITY OF TECHNOLOGY
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