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Three-coordinate measuring device for measuring wall thickness of vertex of wave crest of thin-wall special-shaped tube and measuring method of measuring device
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A technology of three-coordinate measurement and special-shaped tubes, which is applied in the field of mechanical processing, can solve the problems of difficult measurement of the wall thickness of the peak and apex, and achieve the effects of easy industrialization and application, simple manufacturing process, and reduced operation difficulty
Pending Publication Date: 2018-08-21
RES INST OF PHYSICAL & CHEM ENG OF NUCLEAR IND
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[0005] The object of the present invention is to provide a three-coordinate measuring device for measuring the wall thickness of the crest and apex of thin-walled special-shaped pipes in order to solve the problem in the prior art that the wall thickness of the crest and apex of the thin-walled special-shaped pipe is difficult to measure
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Embodiment 1
[0047] A three-coordinate measuring device for measuring the wall thickness of the crest apex of a thin-wall special-shaped pipe, comprising:
[0048] Three-coordinate measuring workbench 1, the top is fixedly provided with the first equal-height block 2 and the second equal-height block 7 with the same height; three-coordinate measuring head 8, which is used to measure the object to be measured; moving mechanism, which makes the above-mentioned three-coordinate movement of the measuring head; a control device which controls the above-mentioned movement mechanism;
[0050] The support beam body 4 is used to pass through the lumen of the thin-walled special-shaped tube 3;
[0051] Inner support positioning rod 5: the bottom end is positioned on the support beam body 4 through the fixing seat 6, and the outer diameter of the inner support positioning rod 5 is smaller than the inner diameter of the crest 14...
Embodiment 2
[0064] This embodiment is further optimized on the basis of Embodiment 1. The first equal-height block 2 and the second equal-height block 7 are both V-shaped blocks 15, and the upper and lower sides of the V-shaped block are all provided with V surfaces. 16.
[0065] As a preferred mode, the parallelism of the upper and lower surfaces of the V-shaped block is 0.005mm, the flatness is 0.005mm, the parallelism of the left and right surfaces is 0.005mm, and the flatness is 0.005mm. The first equal-height block 2 and the second equal-height block 7 can be standard V-shaped blocks, and the standard V-shaped blocks should meet the JB / T8047-95 standard.
Embodiment 3
[0067] The measuring method of the three-coordinate measuring device for measuring the wall thickness of the crest apex of the thin-walled special-shaped pipe comprises the following steps:
[0068] Step 1, positioning: clamp the bottom end of the inner support positioning rod 5 on the fixing seat 6, and place the fixing seat 6 on the top of the supporting beam body 4;
[0069] Step 2, the support beam body 4 passes through the lumen of the thin-walled special-shaped tube 3, and the two ends are placed on the first equal-height block 2 and the second equal-height block 7, and the thin-walled special-shaped tube 3 is placed obliquely so that the support The top of the supporting part is taken as the measurement point, and the coordinate X of the first point is measured by the three-coordinate three-coordinate probe 8 0 Y 0 Z 0 ;
[0070] Step 3: keep the position of the positioning mechanism of the thin-walled special-shaped tube unchanged, and put the thin-walled special-sh...
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Abstract
The invention discloses a three-coordinate measuring device for measuring the wall thickness of the vertex of the wave crest of a thin-wall special-shaped tube and a measuring method of the measuringdevice. The three-coordinate measuring device comprises a three-coordinate measuring workbench, a three-coordinate measuring head, a moving mechanism, a control device and a thin-wall special-shaped tube positioning mechanism; the top end of the three-coordinate measuring workbench is fixedly provided with a first equal-height block and a second equal-height block having the same height; the three-coordinate measuring head is used for measuring a measured object; the moving mechanism is used for making the three-coordinate measuring head to move; the control device is used for controlling themoving mechanism; the thin-wall special-shaped tube positioning mechanism comprises a supporting beam body and an inner supporting and positioning rod, wherein the supporting beam body passes throughthe tube cavity of the thin-wall special-shaped tube; two ends of the supporting beam body are respectively arranged on the top ends of the first equal-height block and the second equal-height block,so that supporting and positioning can be realized; the bottom end of the inner supporting and positioning rod is positioned on the supporting beam body through a fixing seat; and the top end of the inner supporting and positioning rod is provided with a supporting portion for supporting the apex of the inner wall of the wave crest. The three-coordinate measuring device and the measuring method thereof of the invention have the advantages of convenient operation and improved measurement accuracy.
Description
technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a three-coordinate measuring device and a measuring method for measuring the wall thickness of a wave peak apex of a thin-wall special-shaped pipe. Background technique [0002] Such as Figure 1a As shown, a lumen is provided at the center of the thin-walled special-shaped tube 3 to be tested, and the crest 14 is located on the outer wall of the thin-walled special-shaped tube 3 , and the lumen of the crest 14 communicates with the lumen. [0003] In the past, the wall thickness of the crest 14 of the thin-walled special-shaped tube 3 was measured by using a wall thickness micrometer to measure the wall thickness of the thin strip at the peak position before its forming. However, the special-shaped part of the special-shaped tube will be subject to greater stress during the forming process. The wall thickness will change to some extent, so the measured data of the ...
Claims
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Application Information
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IPC IPC(8): G01B5/06
CPCG01B5/06Y02E30/30
Inventor 刘红付胜楠曹昆武姚江伟张云江王超刘海梅
Owner RES INST OF PHYSICAL & CHEM ENG OF NUCLEAR IND
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