Hole strip, tooling for detecting hole strip and method for processing and detecting hole strip

Abstract

The invention provides a special hole strip, which realizes the support on a heat exchange pipe and simultaneously guarantees the heat exchange effect. Meanwhile, the invention provides a method for processing the hole strip, which effectively eliminates the influence of the processing stress on the part dimension and the position precision through the ingenious combination of the stress releasing technology and the machining process. The invention also provides a special tooling for detecting the hole strip and a method for detecting the hole strip by the tooling. The special detecting tooling is adopted to be combined with the unique detecting method, the problem of form and location tolerance mass detection of porous parts is perfectly solved, on the premise of meeting the detection reliability degree, the detection efficiency is effectively improved, and the detection cost is reduced. The hole strip, the special tooling and the method are used in the fields of mechanical processing and detection.

Description

technical field [0001] The invention is applied in the field of mechanical processing and detection, and in particular relates to a mechanical hole bar part, a tool for testing the hole bar, and a method for processing and testing the hole bar. Background technique [0002] The exchanger in the pressurized water reactor nuclear power plant is equipped with a C-shaped heat exchange tube. In order to support the C-shaped heat exchange tube, a high-precision stainless steel hole bar is specially designed. [0003] There is a through hole in the hole bar, and the position of the through hole and the flatness of the thin strip stainless steel plate are extremely demanding. The general method of processing this kind of parts is to use CNC machine tools. If only CNC machine tools are used for processing , the position accuracy and dimensional accuracy of the small semicircle hole in the hole bar can be guaranteed during processing, but for such thin and long hole stainless steel pa...

AI Technical Summary

Problems solved by technology

[0003] There is a through hole in the hole bar, and the position of the through hole and the flatness of the thin strip stainless steel plate are extremely demanding. The general method of processing this kind of parts is to use CNC machine tools. If only CNC machine tools are used for processing , the position accuracy and dimensional accuracy of the small semicircle hole in the hole bar can be guaranteed during processing, but for such thin and long hole stainless steel parts, the processing stress generated during machining will make the hole The bar is deformed, which makes it difficult to guarantee the flatness, parallelism of the upper and lower surfaces and the dimensional accuracy of each hole

[0004] The position of each hole in the hole bar is based on the center of the hole bar. For the detection of the position accuracy of the workpiece, the traditional detection method is to use modern testing equipment - three-coordinate detector, and place the hole bar on the three-coordinate Detection on the detector, the detection technology is accurate, and the position of each hole relative to the reference can be read out, but this method is generally used in the measurement room and is not suitable for industrial batch detection

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