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Adjustable test fixture

A test fixture and adjustable technology, applied in impact testing, testing of machine/structural components, measuring devices, etc., can solve the problems of large size, different boundary conditions, no test standards, etc., to achieve simple operation, structural design, etc. Reasonable and high-precision effect

Inactive Publication Date: 2012-06-13
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In practical engineering applications, in addition to testing the basic static and dynamic properties of materials or structures, it is also necessary to study the static and dynamic properties of structures according to actual engineering requirements. However, the size of structures in engineering is relatively large, and the boundary conditions are different. Therefore, it is necessary to design and manufacture test fixtures suitable for different working conditions, which will cause a lot of waste of materials
[0003] The current standard simply supported test fixture is matched with the relevant test machine, but for other types of test items, the standard test fixture cannot meet the relevant test requirements, and the test fixture needs to be designed and processed separately
For the test fixture with fixed ends, there is no relevant test standard, and different test fixtures need to be designed according to different tests, which does not have certain versatility, and it is difficult to meet the test requirements of various working conditions in the project

Method used

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Embodiment Construction

[0016] The present invention is described in further detail below in conjunction with accompanying drawing:

[0017] Referring to Figures 1 and 2, the test fixture device of the present invention includes an I-beam base 1, a base fixing bolt 2, a bearing guide groove 3, a bearing 4, fixed support pressing pieces 5 at both ends, pressing piece fixing bolts 6, support Seat fixing bolt 7, simply supported roller shaft 8. In order to ensure that the centerline of the support is centered, it is required that the centerlines of the two axial guide grooves be on the same line.

[0018] Figure 1 when using the test fixture device of the present invention, at first fix the I-beam base 1 by the bolt 2, adjust the distance between the supports 1 by the guide groove 3 to realize the change of the span, and the test specimen is placed on the support 4 and the solid Between the supporting pieces 5, the clamping is realized by adjusting the bolt 6.

[0019] Figure 2 when using the test fix...

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Abstract

The invention discloses an adjustable test fixture device, which comprises an H beam base, two support bases arranged on the H beam base and clamped pressure sheets arranged on the tops of the support bases; two pairs of support base guide grooves are arranged on an upper wing plate of the H beam base; and one support base is movably connected to each pair of support base guide grooves. The device disclosed by the invention is simple for operation and high in precision; the positions of the support bases can be adjusted through the guide grooves on the upper wing plate of an H beam, so that the distance between the support bases can be adjusted, thus, the purpose of applying to test pieces with different geometrical sizes can be achieved; different boundary types can be realized by replacing the types of the support bases on the upper wing plate of the H beam; and the H beam base can move, thus, the adjustable test fixture is convenient to experiment and test in different places and has a certain portability.

Description

Technical field: [0001] The invention relates to the field of test devices, in particular to a fixture device for static and dynamic impact tests. Background technique: [0002] Standard static and dynamic tests are used to test the basic properties of materials or structures. The boundary conditions are simply supported, and the size of the specimens taken is relatively small. Relevant standards generally refer to ASTM material test standards. In practical engineering applications, in addition to testing the basic static and dynamic properties of materials or structures, it is also necessary to study the static and dynamic properties of structures according to actual engineering requirements. However, the size of structures in engineering is relatively large, and the boundary conditions are different. Therefore, it is necessary to design and manufacture test fixtures suitable for different working conditions, which will cause a lot of waste of materials. [0003] The curre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/04G01M7/08
Inventor 秦庆华王铁军张建勋
Owner XI AN JIAOTONG UNIV
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