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Method and auxiliary device for pasting strain gages on circular bar and strain gage placing template

A technology of auxiliary devices and strain gauges, applied in the direction of measuring devices, instruments, etc., can solve problems such as easy mutual influence and difficult operation, and achieve the effect of uniform spacing, improved flatness, and guaranteed parallelism of spacing

Active Publication Date: 2014-03-26
西北稀有金属材料研究院宁夏有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the diameter of the bar is small, each strain gauge should be pasted separately, which is easy to affect each other and difficult to operate

Method used

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  • Method and auxiliary device for pasting strain gages on circular bar and strain gage placing template
  • Method and auxiliary device for pasting strain gages on circular bar and strain gage placing template

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Embodiment Construction

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0021] The strain gauge pasting auxiliary device is composed of a clamping rotator 1 and a sample clamping block 2. The sample clamping block 2 can be adjusted up and down, and a semi-cylindrical sample groove is arranged on its top surface. The diameter of the sample groove is adjusted according to the diameter of the round bar.

[0022] The template for placing the strain gauges is a rectangular flat plate on which tape scale lines 3 and strain gauge positioning wireframes 4 are engraved. The spacing of each wire frame is in accordance with the spacing requirements of the strain gauges of the corresponding bar specimens. The sides of the wireframe are parallel to the tape parallel lines. Wireframes are parallel to each other. The wireframe is centered between the parallel lines of the tape. The size of the strain gauge positioning wire frame 4 is adjusted accor...

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Abstract

The invention relates to a method and auxiliary device for pasting strain gages on a circular bar and a strain gage placing template. The method includes the steps that firstly, a plurality of strain gages are fixed to transparent adhesive tape at intervals in a parallel mode; then, the transparent adhesive tape is straightened and flat placed on a sample abutting block provided with a sample groove, the first strain gage to be pasted is controlled to be aligned with the sample groove and is coated with a binding agent, the sample abutting block is made to abut upon the sample afterwards, the other strain gages are coated with binding agents after the first strain gage is firmly pasted, the sample abutting block is made to slightly descend by pulling the other end of the adhesive tape, the sample is rotated so that the cylindrical surface of the sample can be wrapped by the adhesive tape, and then the strain gages can be pasted. By adopting the strain gage pasting auxiliary device and the strain gage placing template to paste the strain gages on the circular bar, pasting flatness is improved, the interval parallelism and uniformity of the strain gages are guaranteed, and the multiple strain gages can be pasted at one time.

Description

technical field [0001] The invention belongs to the technical field of non-ferrous metal materials, and in particular relates to a method for pasting round bar strain gauges, a pasting auxiliary device and a placement template. Background technique [0002] In laboratory testing, it is usually necessary to paste the strain gauge on the surface of the sample, then load or unload the sample, and observe the strain signal of the strain gauge at the same time, so as to obtain the performance index of the material. In the prior art, the strain gauges are usually pasted on the plate sample, which is easy to operate. However, some experiments require the strain gauges to be pasted on the round bar sample, and in order to reflect the strain on the entire cylindrical surface of the bar, multiple strain gauges need to be evenly pasted on the cylindrical surface (or pasted in other specific positions) . If the diameter of the bar is small, each strain gauge must be pasted separately,...

Claims

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Application Information

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IPC IPC(8): G01B21/32
Inventor 钟景明马立斌张健康李峰王文伟贾莉邓六良许德美
Owner 西北稀有金属材料研究院宁夏有限公司
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