Non-contact laser detecting instrument for displaying roughness of steel ball

Abstract

The invention relates to a non-contact laser detecting instrument for displaying the roughness of a steel ball, which comprises a base (1), a steel ball adjusting device (2), a swing adjusting device (3), a measuring mandrel (4), a limiting device (6), a photoelectric sensor (7), a swing receiving device (8), a laser tube, a laser tube adjusting device (9) and a shell (10). In the non-contact laser detecting instrument provided by the invention, a laser speckle principle is adopted on a measuring principle; the mechanical structure of the detecting instrument has the key points that the incidence speckle of the laser tube, the top end of the steel ball and the gyration center of the sensor adjusting device are adjusted to one point, i.e. three points are on the same line; simultaneously, the reflected speckles are right positioned in the right center of a photonuclear sensor; and the whole light path is in a good darkroom protection mode, and errors are reduced to the minimum under the condition that the whole light path is in the good darkroom protection mode, thereby reaching measurement standards. The non-contact laser detecting instrument provided by the invention has the advantages of high measuring speed, no damage to the measured steel ball (5), simplified structure of the detecting instrument, cost reduction, appearance improvement, simple and convenient operation and strong detection reliability.

Description

[0001] technical field [0002] The invention belongs to the technical field of measurement, and in particular relates to a non-contact laser detector for displaying the roughness of steel balls. Background technique [0003] The steel ball roughness meters currently on the market have the following defects in the mechanical mechanism: [0004] 1. Both the steel ball adjustment device and the swing adjustment device adopt a worm gear structure, which takes up a large space, high cost, bloated structure, and relatively loud noise; [0005] 2. The laser tube is exposed on the outside, and the loss of the laser light source is large, which affects the effective light sensing of the photoelectric sensor. The adjustment structure is too simple, difficult to adjust, and affects the appearance of the entire detection device; [0006] 3. The limit device is just a simple swing rod, which cannot be adjusted in height, and the gap is large, so it cannot really play the role of limi...

AI Technical Summary

Problems solved by technology

[0004] 1. Both the steel ball adjustment device and the swing adjustment device adopt a worm gear structure, which takes up a large space, high cost, bloated structure, and relatively loud noise;

[0005] 2. The laser tube is exposed on the outside, and the loss of the laser light source is large, which affects the effective light sensing of the photoelectric sensor. The adjustment structure is too simple, difficult to adjust, and affects the appearance of the entire detection device;

[0006] 3. The limit device is just a simple swing rod, which cannot be adjusted in height, and the gap is large, s

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