An auxiliary device for coaxial bonding of columnar strain gauges
An auxiliary device and strain gauge technology, applied in the engineering field, can solve the problems of accurate positioning technology gap, etc., and achieve the effects of simple structure, low cost, and accurate positioning
Inactive Publication Date: 2017-12-19
刘家贵
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- Application Information
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Problems solved by technology
[0004] The main focus of the existing patented technology is the accurate positioning of the strain gauges on the plane and the parallelism of multiple strain gauges on the cylindrical rod. For the accurate positioning technology of the strain gauge sensitive grid parallel to the axial direction on the cylindrical rod, there is still is blank
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[0020] Such as Figure 1-3 As shown, an auxiliary device for sticking column-shaped strain gauges coaxially includes: a limiting body 1 , a bottom support base 2 and a fixing piece 6 ; the bottom supporting base 2 is fixed on the limiting body 1 by the fixing piece 6 . Limiting main body 1 is provided with limiting groove 8, and vertical limiting member 3 is arranged in limiting groove 8, and horizontal limiting member 4 is arranged on the top of limiting groove 8; Limiting main body 1 is provided with horizontal limiting 4 pieces One-to-one correspondence of the horizontal fixing parts 5 and the vertical fixing parts 7 corresponding to the vertical limiting parts 3 .
[0021] The vertical limiting member 3 is a cube with a V-shaped slot on the head. The vertical limiting member 3 runs through the limiting main body 1 and is adjusted up and down by the vertical fixing member 7 .
[0022] The vertical fixing member 7 includes a vertical limiting bolt column hole and an adjusti...
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The invention provides a columnar part strain piece coaxial bonding auxiliary device. The device comprises a limiting body, a bottom support base and a fixed piece; the bottom support base is fixed on the limiting body by the fixed piece; a limiting groove is formed in the limiting body; a vertical limiting piece is arranged in the limiting groove; horizontal limiting pieces are arranged at the top of the limiting groove; and the limiting body is provided with horizontal fixed pieces corresponding to the horizontal limiting pieces one to one and a vertical fixed piece corresponding to the vertical limiting piece. The device is simple in structure and easy to adjust, solves the problem of difficult positioning of strain pieces during bonding along the axis of a cylindrical rod, and can adjust the vertical position of the vertical limiting piece through controlling screwing of a bolt in a bolt column hole of the vertical fixed piece so as to adapt to positioning and bonding of round rods with different sizes and the strain pieces with different sizes.
Description
technical field [0001] The invention belongs to the technical field of engineering, and relates to an auxiliary device for sticking coaxial strain gauges of columnar parts. Background technique [0002] Hopkinson rod technology is generally used for material dynamic mechanical performance testing and explosion shock wave pressure testing. One of the key points of this technology is to measure the axial strain on the surface of the rod through strain gauges. When the strain gauges are pasted, the direction of the test sensitive grid must be consistent with the The axes of the rods are parallel. If there is a non-zero angle between the strain gauge and the axial direction, it will inevitably cause measurement errors, especially for thin rods, the surface curvature of the rod is large, and the size of the strain gauge is small, which is not conducive to positioning and pasting. parallel. [0003] In order to solve the difficulty of manually positioning strain gauges, Chinese ...
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IPC IPC(8): F16B11/00
CPCF16B11/006
Inventor 刘家贵李干李治中赵跃堂
Owner 刘家贵