Measuring route planning method for coordinate measuring machine

A coordinate measuring machine and a technology for measuring paths, which are applied in the detection field, can solve the problem of inaccurate judgment of whether the measurement path is the shortest time, etc., and achieve the effect of improving measurement work efficiency and accuracy, short measurement path, and less measurement time

Active Publication Date: 2018-12-21
HEFEI UNIV OF TECH
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AI Technical Summary

Problems solved by technology

At present, the measurement path is often obtained based on manual experience, and it is not very accurate to judge whether the measurement path is the shortest path or the shortest time.

Method used

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  • Measuring route planning method for coordinate measuring machine
  • Measuring route planning method for coordinate measuring machine
  • Measuring route planning method for coordinate measuring machine

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Embodiment Construction

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0032] Such as figure 1 As shown, a coordinate measuring machine measurement path planning method is used for the optimal measurement path planning of complex geometric planes, including the following steps:

[0033] Step 1, the identification of geometric information; import the CAD model, and build the plane model ABCDE to be measured from 3D to 2D, such as figure 2 shown.

[0034] Step 2: Read the edge of the plane to be measured; traverse the model ABCDE of the plane to be measured to obtain all the collection information, including reading the number and coordinates of the vertices of the plane to be measured, and reading the straight-line distance between adjacent vertices of the plane to be measured. After testing, the plane model ABCDE to be tested includes vertices A (98,305), B (98,-544), C (611,...

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Abstract

The invention discloses a measuring route planning method for a coordinate measuring machine and is used for the optimum measuring route planning of a complex geometrical plane. The method comprises the steps of identifying geometrical information; reading edges of a to-be-measured plane; identifying concave-convex characteristics in the to-be-measured plane; determining the number and locations of measuring points; computing a result of dividing the number of vertexes by the number of the measuring points, thereby obtaining a quotient value and a remainder value; drawing arcs in the plane bytaking the vertexes as circle centers, wherein intersection points of angle bisectors of vertex angles at which the vertexes are located and the arcs are the locations of the measurement points; generating a measuring route; identifying obstacle avoidance points; and finally determining the measuring route. According to the method, the measuring points can be rapidly marked according to geometrical parameters of the to-be-measured plane and the optimum measuring path is determined according to distribution of the measuring points, so the measuring route of the coordinate measuring machine is enabled to be the shortest and have least measuring time and highest measuring precision, working efficiency and precision are improved, the obtained measuring points are effectively prevented from being located at the exterior of a measuring plane in a route planning process, and the measuring points are enabled to be uniformly distributed in the measuring plane.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a measuring path planning method for a coordinate measuring machine. Background technique [0002] The manufacturing industry is developing toward intelligence, integration, and high-end, and more and more companies have begun to use three-coordinate measuring machines to monitor and measure the quality of parts. In the measurement of a single object, using the optimal measurement path is often an effective way to improve measurement efficiency. At present, the measurement path is often obtained based on manual experience, and it is not very accurate to judge whether the measurement path is the shortest path or the shortest time. Therefore, how to plan an efficient measurement path based on the measurement of the three-coordinate measuring machine has always been a research hotspot for researchers at home and abroad. [0003] For the three-coordinate measurement path planni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/00G06Q10/04
CPCG01B21/00G06Q10/047
Inventor 于连栋张虎陈文青赵会宁
Owner HEFEI UNIV OF TECH
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