Cylindrical part slope angle measuring method and angle measuring device thereof

Abstract

The invention discloses a cylindrical part slope angle measurement method and an angle measurement device thereof. The cylindrical part slope angle measurement method comprises the following steps of:a profile diagram acquisition step, which is implemented by acquiring a projection profile diagram of an inclined section of a cylindrical part; a parameter marking step, which is implemented by performing parameter marking on the drawn projection profile map; and an angle calculation step, which is implemented by calculating a slope angle of the cylindrical part through using a formula. When thecylindrical part is horizontally placed along the axis, all-attitude online wedge angle calculation under the conditions of axial 360-degree rotation and circumferential 360-degree rotation can be realized; the design and application of a detection system based on the algorithm can quickly and simultaneously detect a plurality of parts, simplify the detection steps, realize the detection automation and improve the detection efficiency; and the application of the cylindrical part slope angle measurement method does not need a special fixture to place a part for detection, so that errors causedby non-concentricity of part clamping, non-coaxiality of a light source and the part and the like are reduced. The invention provides an algorithm for detecting the slope angle of the cylindrical part, and further provides the design of the detection system based on the algorithm.

Description

technical field [0001] The invention relates to the field of detection algorithms, in particular to a method for measuring the slope angle of a cylindrical part and an angle measurement device thereof. Background technique [0002] Such as Figure 6 As shown, the laser beam emitted horizontally is irradiated on a horizontally placed product with a certain polishing wedge angle, and the reflected beam will form an angle twice the wedge angle with the horizontal axis. According to the relationship of plane triangle geometry, the reflected beam at a fixed distance The line deviation is converted into an angle, and the calculation formula is L=D·tan(2α), and then the angle value is marked as a group of concentric circles on the receiving screen, so that intuitive measurement results can be obtained. [0003] Detection process: [0004] 1. Calibrate the optical path: first replace the product with a standard 90-degree angle block, place it in the V-shaped groove of the loading p...

AI Technical Summary

Problems solved by technology

[0008] 1. It is necessary to adjust the horizontal output of the beam;

[0009] 2. The axis of the tested component must be coaxial with the axis of the light source, which is difficult to realize;

[0010] 3. Special fixtures are required for clamping, and the p

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