A detection path planning method for multi-check features

Abstract

The invention discloses an inspection path planning method oriented to multiple inspection features: step 1: layout of measuring points and safety points, recording the coordinate value, direction vector and identification number of the feature of each measuring point; step 2: formulating relevant rules , to establish an N×N relational Boolean matrix R between any measuring point and a safety point N ; Step 3: Build an ant colony algorithm based on the Boolean matrix constraint of the association relationship according to whether the measurement points can be effectively reached, and obtain the optimal solution of the reachable path between each measurement point and the safety point; Step 4: Construct a structure array, Store the ordered queue of the optimal solution measurement points, the feature names attached to the measurement points, the feature type and the geometric tolerance of the inspection; Step 5: Output the path as a detection path program with attached feature information data, use the equipment to detect, and return The measured value of the measuring point; finally, the fitting and evaluation of the measuring point are carried out. The method of the invention makes the planning path the shortest, saves the measurement time, and improves the efficiency of digital detection.

Description

technical field [0001] The invention relates to a detection path planning method oriented to multiple 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. The positional relationship between the measuring points and safety points arranged on multiple features to be inspected, and according to the information such as the measurability of the measuring points and the labels of the geometric features to which they belong, the path planning is carried out for the measuring points deployed on the multiple inspection features. 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 parts detection, the detection path directly affects many problems ...

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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