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Precision charger for material nano metric bending mechanical properties test

A nano-scale, loading device technology, applied in the direction of using a stable bending force to test the strength of materials, can solve the problems of the complex structure of the detection device, the inability to detect the detection accuracy, and the high cost, to improve the driving accuracy and resolution, and low cost. , high-efficiency effect

Inactive Publication Date: 2008-07-23
长春邦大精密技术有限公司
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the traditional micro-loading device cannot detect or the detection accuracy is not high in the detection of loading force, or the detection device has problems such as complex structure and high cost, and provides a material with nanoscale material bending The precision loading device in the mechanical performance test makes it have the characteristics of high loading resolution, fast response and small structure

Method used

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  • Precision charger for material nano metric bending mechanical properties test
  • Precision charger for material nano metric bending mechanical properties test

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Embodiment Construction

[0019] The specific content of the present invention will be further described below in conjunction with the embodiments shown in the drawings.

[0020] Refer to Figures 1, 2, 3, and 4, the precision loading device in the bending mechanical performance test of nanomaterials consists of a base 3, an indenter 8, a driving element 4, a stage 9 and a screw 12, etc. The indenter 8 is composed of multiple The thin-walled flexible hinges 5, 6, 7 are connected to the rigid base 3; one end of the base 3 is connected with a pre-tightening mechanism composed of a rigid body 1 and a flexible hinge 2 to pre-tighten the piezoelectric stack; The other end of the base 3 is connected with a displacement test mechanism 10, 11 composed of a flexible hinge 10 and another rigid body 11; the driving element 4 is a piezoelectric stack, and the piezoelectric stack is installed on the indenter 8 and the pre-tensioning mechanism In between, the piezoelectric stack is pre-tightened by screws 12; the stage 9...

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Abstract

The invention relates to a material property test device, in particular to a precise loading device of material nanometer bending mechanical property test, belonging to ultra-precision machining technical field, for improving the drive precision and resolution of loading device, to accurately test loading force and reduce structural complexity and size. The invention is mainly composed of a base, a pressure head, a drive unit and an objective table, wherein the pressure head (8) is connected with the base (3) via a plurality of thin flexible hinges (5, 6, 7), one end of the base (3) via a flexible hinge (2) is connected with a rigid body (1), another end of the base (3) via a flexible hinge (10) is connected with another rigid body (11), the drive unit (4) uses a piezoelectric stack, which is mounted between the pressure head (8) and a preloading device, and the objective table (9) is fixed on the rigid body (11).

Description

Technical field [0001] The invention relates to a material performance testing device, in particular to a precision loading device in the nanoscale bending mechanical performance testing of a material in the field of ultra-precision processing. The invention can be applied to the fields of micro-electromechanical systems, nano-science, precision optics, aircraft and automobile manufacturing, biomedical engineering, aerospace, new materials and new processes. technical background [0002] In recent years, with the rapid development of disciplines such as microelectronics, biomedicine, semiconductor, optics, data storage, ultra-precision machinery and its manufacturing, people have put forward higher and higher requirements for the evaluation and testing methods of nanomechanical properties of materials. . Therefore, various loading mechanisms with precise positioning or precise loading and driving functions have been developed to meet the testing requirements of nanomechanical pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/20
Inventor 赵宏伟秦俊杰
Owner 长春邦大精密技术有限公司
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