Laser measuring head device with variable measuring directions, and application method thereof

Abstract

The invention discloses a laser measuring head device with variable measuring directions, and an application method thereof. At present, methods for changing measuring directions of a laser measuring head mostly change the measuring directions through changing spatial attitudes of the laser measuring head, and the methods require a large operating space in a measuring region. The laser measuring head device with variable measuring directions comprises a connecting base, a laser measuring head, screws, a measuring head outer shell, a cylindrical magnet, leftward and rightward mirror frames, a first plane mirror, a first cylindrical iron block, a forward mirror frame, a second plane mirror and a second cylindrical iron block. The laser measuring head device utilizes the plane mirrors to reflect a measuring light beam of the laser measuring head and receive the light beam, so that the laser measuring head can be used for measuring a surface to be measured at the lower, left, right or front side, the spatial attitude of the laser measuring head does not need to be adjusted in the process of changing the measuring directions, and the required operating space is small.

Description

technical field [0001] The invention belongs to the technical field of non-contact object shape measurement, and in particular relates to a laser measuring head device with variable measuring direction and a using method thereof. Background technique [0002] The measurement principle of the laser probe is based on the laser triangulation method, which uses the triangular relationship between the incident laser point, the optical center of the diffuse reflection light receiving lens and the corresponding image point on the photosensitive element to determine the spatial position of the measured point. The laser probe has the advantages of non-contact measurement, fast response, high measurement accuracy, good quality of measurement data, and relatively low equipment cost. It has great advantages in parts shape detection, surface digital measurement, reverse engineering CAD modeling, etc. Wide range of applications. [0003] In order to expand the measurable range and increa...

AI Technical Summary

Problems solved by technology

However, the cost of the probe shell used in methods (2) and (3) is relatively high; in addition, the commercial discrete indexing and stepless indexing probe shells are special parts, generally for specific contact probes, use When using a laser probe, it is necessary to design and manufacture a special connection device, and because the laser probe is quite different from the contact probe in terms of shape, volume and weight, the measurement effect is easily affected

[0008] In addition, the above three methods all change the measurement direction by changing the spatial attitude of the laser probe, which requires sufficient operating space in the measurement area. If the operable space is small, the above three methods may not be applicable

Images