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Clamping device for high-speed stretching of automotive plastics

A high-speed stretching and clamping device technology, applied in measuring devices, using stable tension/pressure to test the strength of materials, analyzing materials, etc., can solve problems such as bending or breaking, and expand the size range and cost. Inexpensive, avoid bending effect

Pending Publication Date: 2019-02-19
CATARC TIANJIN AUTOMOTIVE ENG RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the moving device moves down, the upper fixture of the testing machine is supported by the sample. For materials such as automotive plastics, there is a possibility of being bent or broken.

Method used

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  • Clamping device for high-speed stretching of automotive plastics
  • Clamping device for high-speed stretching of automotive plastics
  • Clamping device for high-speed stretching of automotive plastics

Examples

Experimental program
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Embodiment Construction

[0028] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0029] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...

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Abstract

The invention provides a clamping device for high-speed stretching of automotive plastics. The clamping device comprises a first clamping unit, a second clamping unit, and a sleeve bushing. The firstclamping unit and the second clamping unit are symmetrically located at both ends of the sleeve bushing, and the second clamping unit has the same structure as the first clamping unit. The first clamping unit comprises a clamping head, a connecting piece, and two sliding blocks, wherein the clamping head has a U-shaped structure and comprises a connecting end and an open clamping end; and the inner width of the clamping end is smaller than the inner width of the connecting end. The sliding blocks are all located in the clamping head, and cooperate with the clamping head, and a gap is formed between the sliding blocks. According to the clamping device for high-speed stretching of the automotive plastics, the gap between the two sliding blocks can be adjusted, thereby effectively clamping asmaller sample, which expands the size range of a test sample of a testing machine, and increases the test capability.

Description

technical field [0001] The invention belongs to the field of automobile safety tests, in particular to a high-speed tensile clamping device for automobile plastics. Background technique [0002] In the process of vehicle crash safety development, the accuracy of material dynamic mechanical performance data directly affects the CAE simulation accuracy of vehicle body structure crashworthiness. The data of high-speed mechanical properties of materials are obtained through high-speed tensile tests. ZWICK / ROLLEHTM16020 equipment is a common equipment for high-speed tensile testing of materials at room temperature. [0003] When using ZWICK / ROLLE HTM16020 equipment for high-speed tensile testing, the standard sample is relatively large. For some small automotive plastic samples, the sample may not be clamped or clamped unreliably. Affect the conduct of the test and the accuracy of the test. [0004] Use ZWICK / ROLLE HTM16020 equipment for high-speed tensile test of materials at...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/04G01N3/08
CPCG01N3/04G01N3/08G01N2203/04G01N2203/0017
Inventor 张赛方锐孟宪明黄亚烽吴昊郑崇嵩
Owner CATARC TIANJIN AUTOMOTIVE ENG RES INST CO LTD
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