Large-scale forging concentricity detection device and detection method based on ranging principle

Abstract

The invention relates to a large forging concentricity detecting device based on distance measuring principles, which comprises a laser detecting device, a detection driving device, a control processing device and a display device, wherein the laser detecting device is mainly composed of a Z-shaped frame and five laser distance measuring instruments; the detection driving device is mainly composedof a base, a bracket, a first cross frame, a second cross frame and three servo motors; the laser detecting device comprises a right-angle Z-shaped frame and five laser distance measuring instruments; the detection driving device is used for realizing the switching between a non-detection position and a detection position; the control processing device is used for sending control signals to the five laser distance measuring instruments and the three servo motors, receiving distance information collected by the five laser distance measuring instruments, and performing filtering, noise reduction, information separation, multi-parameter analysis and optimal center algorithm processing to obtain central position coordinates of a detected piece and the size and orientation of the central offset. The large forging concentricity detecting device is high in measurement speed and short in time required by the measurement, and the error of a concentricity result reaches 1mm.

Description

technical field [0001] The invention relates to a large-scale forging concentricity detection device based on the principle of distance measurement and a detection method thereof, belonging to the technical field of workpiece concentricity measurement in mechanical processing. Background technique [0002] Measurement technology is the basis of industrial development. At present, concentricity measurement has been widely used in many fields as one of the geometric parameter measurement fields. Most machine parts with holes have concentricity requirements to ensure product qualification. But in many cases, the concentricity deviation cannot be obtained directly or indirectly during the processing, but can only be obtained through detection after processing. Although the defects of some products have been properly corrected after subsequent processing, a considerable number of products will eventually become waste products because the defects cannot be corrected, resulting in ...

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Problems solved by technology

[0005] The invention overcomes the disadvantages of insufficient measurement accuracy and being easily affected by the environment in the existing concentricity detection technology, and provides a concentricity detection device and detection method for large forgings based on the principle of distance measurement, which realizes the detection of forgings during the processing of forgings. Accurate measurement of concentricity can improve the processing quality of forgings on the one hand, and reduce the waste of resources caused by large processing errors on the other hand

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