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Wave crest wall thickness measuring and positioning device for concave thin-wall special-shaped pipe and measuring method thereof

A technology of wall thickness measurement and positioning device, which is applied in the field of mechanical processing and can solve problems such as difficulty in measuring the wall thickness of wave peaks

Pending Publication Date: 2020-10-30
RES INST OF PHYSICAL & CHEM ENG OF NUCLEAR IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a positioning device for measuring the peak wall thickness of concave thin-walled special-shaped pipes in order to solve the problem that the peak wall thickness of concave thin-walled special-shaped pipes is difficult to measure in the prior art, so as to use a three-coordinate measuring machine. Point measurement to calculate wall thickness

Method used

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  • Wave crest wall thickness measuring and positioning device for concave thin-wall special-shaped pipe and measuring method thereof
  • Wave crest wall thickness measuring and positioning device for concave thin-wall special-shaped pipe and measuring method thereof
  • Wave crest wall thickness measuring and positioning device for concave thin-wall special-shaped pipe and measuring method thereof

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Effect test

Embodiment 1

[0039] like Figure 1-Figure 6 As shown, the device for measuring and positioning the peak wall thickness of the concave thin-wall special-shaped pipe of the present invention includes a base, a positioning block and a clamping measurement assembly installed on the base.

[0040] The above-mentioned clamping measurement assembly includes a clamping seat and a support block. One end of the support block is installed in the clamping seat, and the other end extends out of the clamping seat to form a suspended state, which is used to pass through the concave thin-walled profile to be measured. For the lumen of the tube, a support portion is formed on the support surface of the support block to support the apex of the inner wall of the concave thin-wall special-shaped tube to be measured during measurement.

[0041] The above-mentioned positioning block is arranged on a side close to the clamping measurement assembly for cooperating with the clamping seat to clamp the concave thin-...

Embodiment 2

[0048] On the basis of Example 1, using a positioning device to measure the peak wall thickness of a concave thin-walled special-shaped tube with a three-coordinate measuring instrument, the measurement process includes the following steps: (take the adjustment of the support block and the X-axis as an example)

[0049] (1) Place the base on the workbench of the three-coordinate measuring instrument, place the clamping seat on the base, and adjust the base to be consistent with the XY axes of the three-coordinate measuring instrument;

[0050] (2) The support block is placed in the clamping and fixing seat, so that the edge of the supporting block is initially clamped in the horizontal or vertical direction, and the clamping and fixing seat is adjusted until the knife-edge edge of the supporting block is consistent with the X axis;

[0051] (3) Use a three-coordinate measuring instrument to measure the apex of the knife-edge edge to obtain the coordinate X of the apex position i...

Embodiment 3

[0055] On the basis of Embodiment 1, the difference is that the base can be replaced by a square box, and the square box should meet the JB / T12196-2015 square box standard.

[0056] Furthermore, a plurality of through holes are opened on the side wall of the positioning block, which saves the consumption of the positioning block, and makes the positioning block light in weight, which is convenient for adjusting the position on the workbench of the three-coordinate measuring instrument.

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Abstract

The invention discloses a wave crest wall thickness measuring and positioning device for a concave thin-wall special-shaped pipe. The wave crest wall thickness measuring and positioning device comprises a base arranged on a three-coordinate measuring workbench, a positioning block and a clamping measuring assembly installed on the base. The clamping measuring assembly comprises a clamping fixing base and a supporting block, the bottom end of the supporting block is installed in the clamping fixing base, the supporting block penetrates through a pipe cavity of the concave thin-wall special-shaped pipe, and a supporting part is formed on the supporting surface of the supporting block; the positioning block is arranged on the side, close to the clamping measuring assembly, of the three-coordinate measuring workbench, and the size of the positioning block matches the size of the concave thin-wall special-shaped pipe so that the position of the concave thin-wall special-shaped pipe can be fixed. The edge vertex simulates the measured wave crest position of the concave thin-wall special-shaped pipe, the edge vertex and the wave crest position point of the concave thin-wall special-shapedpipe are in contact support in a hanging positioning mode, the wall thickness of the concave thin-wall special-shaped pipe is measured through a three-coordinate measuring instrument, measurement parameters are accurate, and the measurement result is stable and reliable.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and in particular relates to a measuring and positioning device and a measuring method for the peak wall thickness of a concave thin-wall special-shaped pipe. Background technique [0002] The measurement of the peak wall thickness of concave thin-walled special-shaped pipes has always been difficult to measure directly due to reasons such as small measurement space and thin walls. In the past, the peak wall thickness of the concave thin-walled special-shaped tube was measured by using a wall thickness micrometer to measure the wall thickness of the thin strip at the peak position before the part was formed. The thickness will change, so the tube measurement data is no longer used. In the past, it was possible to destroy the formed parts and then use a wall thickness micrometer to measure, but it could not meet the requirements. Therefore, it has always been a difficult problem to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/08
CPCG01B21/08Y02E30/30
Inventor 刘红叶瑞夺张云江王超刘海梅付兰兰
Owner RES INST OF PHYSICAL & CHEM ENG OF NUCLEAR IND