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Clamp for instrumented indentation testing

An instrumented press-in and fixture technology, used in instruments, scientific instruments, measuring devices, etc., can solve the problems affecting the stability of the indentation depth measurement, the unsmooth loading and unloading curves, and the sudden change of displacement measurement, and achieve a compact structure, The effect of low cost and cost reduction

Inactive Publication Date: 2010-08-18
INST OF MECHANICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional planar positioning platforms inevitably have gaps in the vertical direction, resulting in greater flexibility in this direction
At the same time, during the large load test, the existence of the gap and the change of the gap during the loading and unloading process, especially the instability, will cause a sudden change in the displacement measurement, resulting in an unsmooth loading and unloading curve, which will affect the accuracy of the indentation depth measurement. stability

Method used

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  • Clamp for instrumented indentation testing
  • Clamp for instrumented indentation testing
  • Clamp for instrumented indentation testing

Examples

Experimental program
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Embodiment Construction

[0047] Such as Figure 1-6 As shown, the fixture of the instrumented press-in test of the present invention includes a sample stage 1 and a base 2. The sample stage 1 is erected on the base 2 through a mobile support mechanism. The mobile support mechanism includes a pulling plate 3, an intermediate plate 4 and a supporting plate 6 , the pulling plate 3, the middle plate 4 and the supporting plate 6 can be integrally formed or separately arranged, the pulling plate 3 and the supporting plate 6 are erected on the base 2, the middle plate 4 is arranged on the pulling plate 3 and the supporting plate 6, and the backing plate 5 Clamped on the middle plate 4, the sample stage 1 is placed on the backing plate 5, and the sample stage 1 can move laterally with the mobile support mechanism, and can also move longitudinally relative to the mobile support mechanism. Such as Figure 9-18As shown, the base 2 is provided with two guide rails 22, 23, and the bottom of the pulling plate 3 an...

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Abstract

The invention discloses a clamp for instrumented indentation testing, which comprises a base, a bolt locking mechanism and a sample table. The sample table is arranged on the base; a guide groove and a chute which are used for the bolt locking mechanism to pass through are arranged on the sample table and the base; the bolt locking mechandfism is used for locking or unlocking the sample table with the base; and under the joint guide action of the bolt locking mechanism, the guide groove and the chute, the sample table can move transversely and longitudinally relative to the base. The clamp is compact in structure and can greatly reduce the cost of the system, the integral structural design ensures the stability of the displacement measurement, and the modular structure can eliminate the softness of a large part of a overall frame.

Description

technical field [0001] The invention relates to a fixture for an instrumented press-in test. Background technique [0002] Among the existing instrumented press-in technologies, common flat positioning platform devices are used to place samples. Conventional planar positioning platforms inevitably have gaps in the vertical direction, resulting in greater flexibility in this direction. At the same time, during the large load test, the existence of the gap and the change of the gap during the loading and unloading process, especially the instability, will cause a sudden change in the displacement measurement, resulting in an unsmooth loading and unloading curve, which will affect the accuracy of the indentation depth measurement. stability. Contents of the invention [0003] Aiming at the problems existing in the prior art, the invention provides an instrumented press-in test jig with a compact structure, which can ensure stable displacement measurement. [0004] In order...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/04
Inventor 宋金龙张泰华冯义辉
Owner INST OF MECHANICS - CHINESE ACAD OF SCI
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