A multi-inspection-feature-oriented inspection path planning method

Abstract

The invention discloses a multi-inspection-feature-oriented inspection path planning method. The method comprises the following steps: 1, arranging measuring points and safety points, and recording acoordinate value, a direction vector and an identification number of a feature to which the measuring point belongs of each measuring point; 2, making a correlation rule, and establishing an N * N incidence relation Boolean matrix RN between any measuring point and a safety point; 3, constructing an ant colony algorithm based on incidence relation Boolean matrix constraints according to whether the measurement points can effectively reach or not, and obtaining an optimal solution of a reachable path between each measurement point and the safety point; 4, constructing a structural body array, and storing an ordered queue of optimal solution measurement points, feature names and feature types to which the measurement points are attached, and checking geometric tolerance; 5, outputting the path as a detection path program with attachment characteristic information data, detecting by using equipment, and returning a measured value of the measurement point; and finally, fitting and evaluating the measuring points. According to the method, the planned path is the shortest, the measurement time is saved, and the digital detection efficiency is improved.

Description

technical field [0001] The present invention relates to a detection path planning method oriented to multi-inspection features, in particular to a measurement point path planning method based on a three-dimensional model in digital detection in the field of intelligent manufacturing and processing technology. According to the positional relationship between the measuring points and safety points arranged on multiple features to be inspected, path planning is carried out for the measuring points deployed on multiple inspection features according to the measurability of the measuring points and the label of the geometric feature they belong to. It is suitable for digital inspection, inspection path planning, intelligent manufacturing and processing and other fields. Background technique [0002] Mechanical parts inspection is an important part of the parts manufacturing process. For part detection, the detection path directly affects many issues such as detection efficiency, ...

AI Technical Summary

Problems solved by technology

Manual point layout and manual path planning have problems such as repeated overlapping of measurement paths, poor measurability, and repeated trial and error; the detection method of path planning based on a single geometric feature also has problems such as the path cannot cross geometric features, and the path is repeated, so it is difficult to fully utilize it. The effectiveness of digital measuring equipment such as three-coordinate measuring machines has seriously affected the detection efficiency and quality, making the detection link one of the bottlenecks that affect the timely completion of production plans

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