A kind of line laser sensor space pose calibration component and calibration method
A pose calibration and sensor technology, applied in the direction of instruments, optical devices, measuring devices, etc., can solve the problems of key geometric feature processing accuracy assurance and processing acceptance difficulty, etc., to achieve simple and easy calibration operation, simple structure, and accurate calibration Effect
Active Publication Date: 2022-08-02
BEIJING UNIV OF TECH
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Problems solved by technology
However, the calibration method based on the standard mandrel requires multiple fitting operations of small sample data and multiple linear movements of the sensor, which introduces the superposition of multi-source errors; the calibration method based on special calibration parts with complex geometric features, It brings great challenges to the processing of calibration parts, and brings great difficulties to the processing accuracy guarantee and processing acceptance of key geometric features.
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[0028] Below in conjunction with concrete processing example, the present invention will be described:
[0029] The line laser sensor spatial position and attitude calibrator involved in the present invention, such as figure 1 As shown, on the basis of a standard mandrel, a cuboid metal block is arranged in the middle of the axis, and a tapered hole is set in the center of the upper and lower end faces of the standard mandrel for fixing. The upper part of the shaft segment S1 and the lower part of the shaft segment S2 of the standard mandrel part of the calibration part require that both the coaxiality and the cylindricity are 1 μm. The cuboid metal block part only has strict requirements on two adjacent planes I and II. The perpendicularity of plane I and plane II is 1 μm, and the parallelism of plane I and plane II to the axis of the standard mandrel is 1 μm.
[0030] The line laser sensor 3 is connected with the three-dimensional angle micro-movement platform 5 through the...
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The invention discloses a line laser sensor space position and orientation calibration component and a calibration method, combining the advantages of gear measurement center contact measurement and a simple geometric feature calibration component, the line laser sensor can be accurately calibrated through simple and easy calibration operations. On the basis of a standard mandrel, a cuboid metal block is arranged in the middle of the axis, and a conical hole is set in the center of the upper and lower end faces of the standard mandrel for fixing. The upper part of the shaft segment S1 and the lower part of the shaft segment S2 of the standard mandrel part of the calibration part require that both the coaxiality and the cylindricity are 1 μm. The perpendicularity of plane I and plane II is 1 μm, and the parallelism of plane I and plane II to the standard mandrel axis is 1 μm. The calibration part has a simple structure, and the existing manufacturing process can meet the processing requirements of high-precision geometric features. Combined with the advantages of the contact measurement of the gear measurement center, the calibration operation is simple and easy, and the accurate calibration of the line laser sensor can be realized.
Description
technical field [0001] The invention relates to a line laser sensor space position and attitude calibration member and a calibration method, in particular to a line laser sensor space position and attitude calibration member and a calibration method based on a gear measurement center, belonging to the field of precision measurement. Background technique [0002] The line laser sensor is widely used in the field of laser triangulation measurement. It can obtain the distance between the zero plane of the sensor beam and the surface of the object to be measured in real time within a certain range. It is a non-contact measurement with fast, high precision and high Efficiency and convenient operation. The many advantages of the line laser sensor facilitate industrial applications, and its high encapsulation reduces the technical requirements for operators, making it easier and more convenient to achieve precise measurement of the object to be measured. [0003] Before performing...
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IPC IPC(8): G01B11/00
CPCG01B11/002
Inventor 石照耀孙衍强于渤
Owner BEIJING UNIV OF TECH