Handheld portable measuring tool based on laser tracker and measuring method thereof

Abstract

The invention discloses a handheld portable measuring tool based on a laser tracker and a measuring method of the handheld portable measuring tool. The measuring tool is a measuring pen which is composed of a conical pen head and a pen rod provided with a target ball base positioning hole. After a target ball base is installed on the pen rod, the pen point of the pen head aligns to and makes contact with a measuring point, a target ball is held by hand to be led to the target ball base, the measuring pen rod is slowly rotated and is kept stable at four positions, the laser tracker measures the coordinate values at the four positions of the target ball, and then the position coordinates of the measuring point of the pen head can be calculated. The handheld portable measuring tool based on the laser tracker and the measuring method of the handheld portable measuring tool have the advantages that no target ball base positioning holes need to be machined in the measuring point, and only the condition that the micro plane where the measuring point is located enables the pen point to be kept stable and aligning when the measuring pen rotates needs to be ensured; the measuring pen does not need to be demarcated, and measuring pen manufacturing errors and form and location tolerances have no influence on the accuracy of a measuring result; the structure is simple, using is convenient, the algorithm can be programmed into the control program of the laser tracker, and the application range is wide.

Description

Technical field: [0001] The invention relates to a device and method for measuring measurement points in a laser tracker 3D measurement mode, in particular to a hand-held portable measuring tool based on a laser tracker and a measurement method thereof, which belong to the technical field of laser tracker measurement. Background technique: [0002] Laser tracker measurement is widely used in aerospace manufacturing, mechanical engineering and other fields. When measuring the coordinates of the point in the 3D measurement mode of the laser tracker, it is necessary to process the positioning hole of the target ball seat at the measurement point. The tracker calculates the position coordinates of the measuring point according to the offset of the target ball seat and the position of the target ball. This method needs to process the positioning hole for installing the target ball seat at the measuring point. When the number of measurement points is large or the positions are r...

AI Technical Summary

Problems solved by technology

When the number of measurement points is large or the positions are random, the manufacturing workload is heavy, and the processing positioning holes affect the design performance of parts

In the absence of positioning holes, to obtain the position coordinates of any point, the laser tracker can only use T-Probe, T-Scan or T-Cam equipment for 6D camera scanning measurement, these equipment are expensive

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