A three-laser displacement sensor fixture with convenient angle adjustment

Abstract

The invention discloses a three-laser displacement sensor fixture for convenient angle adjustment, which comprises a regular triangular prism positioning piece, an L-shaped fixing piece, an angle adjustment mechanism, and a fixture flange. The angle adjustment mechanism is arranged on the L-shaped fixing part, and is composed of an angle adjustment screw rod, an arc angle adjustment chute, an angle positioning groove, a spring, a sleeve, and a scale line. The regular triangular prism positioning part can assemble the three L-shaped fixing parts in the circumferential direction through bolt connection, and can assemble the fixture flange through bolt connection so as to cooperate with the end of the robot. This fixture allows three laser displacement sensors to be evenly arranged in the circumferential direction of the tool, and the angle of the sensors can be adjusted conveniently under different measurement angle requirements, eliminating the cumbersome process of disassembling and assembling the sensors during the angle adjustment process.

Description

technical field [0001] The invention relates to a fixture, in particular to a three-laser displacement sensor fixture. Background technique [0002] For a large number of workpieces with large spatial dimensions and complex surface shapes, it is often necessary to measure the surface normal direction when processing them. At present, the measurement method based on non-contact laser displacement sensors is widely used. According to different application situations The laser displacement sensor clamping measurement method with different angles should be selected. For example, in the drilling process on the surface of the workpiece, the range of measurement points around the hole-making point to be measured is different under the hole-making requirements of different apertures or the surface of the workpiece with different curvatures. It is necessary to select laser displacement sensors with different angles to measure the normal of the workpiece surface. The vector makes it ...

AI Technical Summary

Problems solved by technology

For example, in the drilling process on the surface of the workpiece, the range of measurement points around the hole-making point to be measured is different under the hole-making requirements of different apertures or the surface of the workpiece with different curvatures. It is necessary to select laser displacement sensors with different angles to measure the normal of the workpiece surface. The vector makes it more accurate. On ordinary fixtures, it is often necessary to disassemble and adjust the sensor and even the fixture when dealing with different hole-making requirements. The cumbersome disassembly steps are time-consuming and labor-intensive, which affects the processing cycle. It will cause wear to the fixture and reduce the accuracy of the sensor or even damage it

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