Three-dimensional detection method for sealing surface defects

Abstract

The invention discloses non-contact type detection equipment. The non-contact type detection equipment comprises a detection device, an X-axis manipulator, a Y-axis transferring platform and a lower adapter board part, wherein the lower end of the Y-axis transferring platform is fixed on the lower adapter board part, and a Y-axis connecting base capable of moving in a Y-axis direction is arranged on the Y-axis transferring platform, the upper end of the Y-axis connecting base is fixedly connected with the lower end of the X-axis manipulator, an X-axis connecting base capable of moving in a X-axis direction is arranged on the X-axis manipulator, one end of the detection device is fixed on the X-axis connecting bas, and the other end of the detection device is provided with a vision detection mechanism and a displacement detection mechanism, which can move in a Z-axis direction respectively. The detection equipment can perform image acquisition and measurement to the polished surface to obtain the size information of the defects of the polished surface and provide data support for repairing, and therefore the non-contact type detection equipment is suitable for undamaged and online three-dimensional detection to a precise surface. the non-contact type detection equipment has a compact structure, the overall equipment dimension and volume are reduced and the detection equipment becomes small in size and convenient to carry, only occupies a small space when in use and is suitable for various working environments.

Description

technical field [0001] The invention relates to the technical field of defect detection, and in particular to a three-dimensional detection method for sealing surface defects. Background technique [0002] At present, when performing three-dimensional defect detection on the sealing surface, two methods are mainly used: visual inspection and online video observation. However, the two methods have the following defects: (1) The detection results of the visual inspection method are easily affected by the subjective judgment of the operator, thereby affecting the measurement accuracy; (2) The online video observation method is easy to miss fine scratches; (3) The above two This detection method can only realize the qualitative judgment of the sealing surface defect, but cannot quantify the size of the defect. [0003] In addition, a large number of equipment in modern nuclear power plants need grinding and polishing during maintenance, especially equipment with high sealing re...

AI Technical Summary

Problems solved by technology

However, the two methods have the following defects: (1) The detection results of the visual inspection method are easily affected by the subjective judgment of the operator, thereby affecting the measurement accuracy; (2) The online video observation method is easy to miss fine scratches; (3) The above two This detection method can only realize the qualitative judgment of the sealing surface defect, but cannot quantify the size of the defect

If the above detection method is used to perform three-dimensional detection of defects on the sealing surface of the pressure vessel, the radiation dose of the operator will be seriously increased.

Images