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Sheet material compression clamp

A technology of sheet materials and fixtures, which can be used in analysis materials, measuring devices, instruments, etc., and can solve problems such as difficulty in disassembling test pieces

Inactive Publication Date: 2006-11-22
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a sheet material compression fixture to solve the problems of centering installation and application of pretightening force, small thickness test piece and test piece disassembly of the existing sheet-shaped test piece fixture. The central installation and pre-tightening force are evenly applied, not affected by the weight of the upper fixture itself, accurate testing of specimens with small thickness, easy disassembly of specimens, and high testing efficiency and accuracy

Method used

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  • Sheet material compression clamp
  • Sheet material compression clamp
  • Sheet material compression clamp

Examples

Experimental program
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Effect test

specific Embodiment approach 1

[0005] Specific implementation one: (see figure 1 ~ Figure 5) This embodiment is composed of upper / lower clamping body 7, nut 8, guide block 5, left pre-tightening device, right pre-tightening device, left half clamping device and right half clamping device. The side preloading force device and the right side preloading force device are symmetrically fixed on the left and right sides outside the upper / lower clamping body 7, and the left half clamping device and the right half clamping device are symmetrically arranged on the upper / lower clamping body 7 Inside, the nut 8 is arranged on the upper part of the upper / lower clamping body 7, and the left-side pre-tightening force device and the right-side pre-tightening force device are respectively formed by the support plate 9, the upper connecting body 10, the left-right screw 11, the left-right nut 12, and the lower The connecting body 13, the lever pressing plate 14 and the pin shaft 16 are composed. The upper connecting body 10...

specific Embodiment approach 2

[0006] Specific implementation two: (see image 3 ~ FIG. 5 ) The difference between this embodiment and the specific embodiment 1 is that the contact surfaces of the two wedge-shaped sliders 15 in the left half clamping device and the right half clamping device are provided with sawtooth-shaped concavities and convexities 18 . Other components and connection relationships are the same as in the first embodiment. The contact surfaces of the two wedge-shaped sliders 15 are provided with saw-tooth-shaped concavities and convexities 18, so that the sheet material can be clamped more firmly, and the test data can be more accurate.

[0007] Working principle: The compression experiment of the sheet specimen is realized by the self-locking principle of the wedge-shaped slider. 1. Under normal conditions, the wedge-shaped sliders zero the gap between the wedge-shaped slider groups due to the action of the tension spring. 2. The guide block synchronizes the movement of the two wedge-...

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Abstract

The disclosed compression clamp for sheet-form material comprises: a fixing plate (4) fixed on upper / lower clamp body (7), a pad plate (1) paralleled to the inclined plane (21) of trapezoidal slot (20) in (7), a sphenoid slider (15) arranged in (20), a guide block (5) with one end fixed in the guide slot (23) of (15) and another end slide connected to (23). This invention frees to clamp self weight, and has high precision and efficiency.

Description

technical field [0001] The present invention relates to a clamp. Background technique [0002] Among the existing material compression fixtures, most of the fixtures are for block specimens. Few fixtures are used for sheet-like specimens, and most of the sheet-like specimen fixtures are disassembled and disassembled. In the middle, there is a square slot and is coupled with four wedge blocks (positive and negative combined into a square). When carrying out the compression test, the sheet-like specimen is clamped on the surface side of the two wedge-shaped blocks with the diamond-shaped mouth, and then placed on the platen of the universal testing machine to apply a load for the compression test of the specimen. There are the following shortcomings and deficiencies in the process of loading and unloading the test piece: 1. It is difficult to install the test piece in the center and apply the preload force: during the installation process of the test piece, the preload force...

Claims

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Application Information

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IPC IPC(8): G01N3/04
Inventor 孙雨果吴林志严实
Owner HARBIN INST OF TECH
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