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System and method for detecting form and position tolerance of components

A technology of shape tolerance and detection method, which is applied in the direction of measuring devices, image data processing, instruments, etc., can solve the problems of time-consuming and laborious, inconvenient detection methods, and inability to provide accurate data, so as to improve detection speed and accuracy, reduce effect of error

Inactive Publication Date: 2010-10-27
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Abstract
  • Description
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Problems solved by technology

The traditional method is to put the part to be tested and the standard part together, and then manually measure the shape and position tolerance between the two. The data

Method used

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  • System and method for detecting form and position tolerance of components
  • System and method for detecting form and position tolerance of components
  • System and method for detecting form and position tolerance of components

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Embodiment Construction

[0015] like figure 1 Shown is a system architecture diagram of a preferred embodiment of the part shape and position tolerance detection system of the present invention. The system mainly includes a display device 1 , a host computer 2 , an image measuring machine 3 and an input device 4 . The host 2 includes a storage body 20 and a shape tolerance detection unit 21 .

[0016] Wherein, the image measuring machine 3 is used to acquire the image files of the standard parts and the parts to be tested, and transmit the ingested image files to the test host 2, and the image files of the standard parts and the parts to be tested are composed of point clouds , the point cloud refers to a collection of points composed of multiple three-dimensional discrete points.

[0017] The storage body 20 may be a hard disk in the host 2, etc., for storing point cloud data 22. The point cloud data 22 includes point clouds of standard part drawings and point clouds of parts to be tested.

[001...

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Abstract

A method for detecting form and position tolerance of components comprises the following steps: (a) acquiring a chart file of a component to be detected and characteristic elements to be detected which are selected from the chart file of the component to be detected by a user; (b) performing triangular gridding on the chart file of the component to be detected, and acquiring point cloud data of the chart file of the component to be detected; (c) acquiring standard characteristic elements; (d) extracting the point clod which is fitted into characteristic elements from the point cloud data of the chart file of the components to be detected; (f) calculating the form and position tolerance between the characteristic elements and the standard characteristic elements; and (g) outputting a form and position tolerance analysis table. By adopting the invention, the form and position tolerance of components can be automatically detected.

Description

technical field [0001] The invention relates to a part detection system and method, in particular to a part form and position tolerance detection system and method. Background technique [0002] Image measurement is currently the most widely used measurement method in the field of precision measurement. This method not only has high precision, but also has fast measurement speed. Image measurement is mainly used to measure the dimensional error and shape error of parts, and plays an important role in ensuring product quality. The general method is to use the image measuring machine to obtain the point cloud of the standard part and the part to be measured respectively (that is, a collection of points composed of multiple three-dimensional discrete points), and then input the point cloud data into the computer, and execute the corresponding software to analyze the point cloud data. Perform various processing to obtain test results. [0003] Among them, the shape and positio...

Claims

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Application Information

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IPC IPC(8): G01B11/00
CPCG01B11/24G06T7/60G06T17/00G06T2207/10028
Inventor 张旨光吴新元王敏
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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