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Tubular sample accurate marking tool

A scribing tool and tubular technology, which is applied to the field of precise scribing tools for tubular samples, and achieves the effects of convenient use, simple structure, and reduction of defects in inaccurate final test results.

Inactive Publication Date: 2019-12-03
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Utilizing the present invention can ensure accurate and regular scribing of tubular samples, and reduce defects of inaccurate final test results caused by inaccurate scribing

Method used

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  • Tubular sample accurate marking tool
  • Tubular sample accurate marking tool
  • Tubular sample accurate marking tool

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Experimental program
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Embodiment Construction

[0023] In order to understand the purpose, technical solutions and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0024] figure 1 is a schematic diagram of the precise scribing tool for tubular samples of the present invention. The precise scribing tool for a tubular sample of the present invention includes a holding structure for fixing the tubular sample and rotating the tubular sample during scribing. Specifically, such as figure 1 As shown, the holding structure includes a three-jaw chuck 1 and a tailstock 2, the positions of the three-jaw chuck 1 and the tailstock 2 are fixed and installed coaxially, and the tubular sample 100 is clamped on the three-jaw chuck 1 , and tightened by the tailstock 2, thereby constraining the horizontal and vertical movement and rotation of the tubular sample 100, and realizing the clamping and fixing function ...

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PUM

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Abstract

The invention discloses a tubular sample accurate marking tool, which comprises a holding structure for fixing a tubular sample and rotating the tubular sample during marking; a marking device for marking; and a mobile structure, which comprises a marker guide rail and a transverse guide rail. The marking device is installed on the marker guide rail; and the marker guide rail is installed on the transverse guide rail. The marking device comprises a marker structure and a rocker arm screw rod. The marker structure comprises a marker box, a marker, a marker hand wheel, a spring and a marker sleeve, wherein the marker is fixedly arranged in the marker sleeve; the marker sleeve is limited on the marker box; and the marker hand wheel can drive the marker sleeve to have axial telescopic motion to adjust compression amount of the spring sleeved on the marker sleeve and set the magnitude of force applied by the marker. The marking tool is simple in structural and convenient to use, and can guarantee accurate and regular marking of the tubular sample to reduce the defect that the final test result is inaccurate due to inaccurate marking.

Description

technical field [0001] The invention relates to a scribing tool, in particular to a precise scribing tool for tubular samples with simple structure and convenient use. Background technique [0002] In the production process of thin-walled tubular prefabricated parts (such as oil pipelines, thin-walled conduits, etc.), in order to ensure product quality, a series of mechanical performance tests (such as tensile, torsion, and shear) must be performed on the produced products. Before carrying out these mechanical property tests, it is often necessary to carry out scribing work on the outside of the pipe wall of the sample, so as to achieve the purpose of marking the reference position, or processing nicks to simulate scratches under actual working conditions, etc. . [0003] In the existing situation, there are mainly two ways to draw lines: [0004] One is to use an oil-based marker to draw lines. This method mainly uses the principle that a marker pen can leave traces on t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/06
CPCG01N3/06
Inventor 王大为李纪涛胡家杰
Owner CHENGDU AIRCRAFT INDUSTRY GROUP