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Clamp

A fixture and claw technology, applied in the field of test equipment, can solve problems such as gaps, impact on test results, and sliding deviation of sample discs

Inactive Publication Date: 2020-11-27
SHENHUA SHENDONG COAL GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] A fixing device: the axial positioning of the sample plate is reliable, but the circumferential fixation of the sample plate is not firm, there are gaps after installation, and the sample plate may slide and shift during the test process, which will affect the test results
[0004] Another fixing device: the circumferential positioning of the sample disk is firm, and the sample will not shift in the circumferential direction after installation, but the axial direction of the sample disk is not reliably fixed. Due to the test loading, the eccentric force Under the action of

Method used

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Embodiment Construction

[0050] The specific implementation manner of the present invention will be further described below in conjunction with the accompanying drawings. Wherein the same components are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer ” refer to directions towards or away from the geometric center of a particular part, respectively.

[0051] Such as Figure 1-8 As shown, a clamp provided by an embodiment of the present invention includes a base 1 , a disk cover 2 detachably mounted on the base 1 , and a plurality of claws 3 slidably mounted on the disk cover 2 .

[0052] The disc cover 2 includes a circle of disc cover side plates 21 and a disc cover top plate 22 arranged on the disc cover side plates 21 .

[0053] The top plate 22 of the disk cover is provided with a plurality of top plate guide g...

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Abstract

The invention discloses a clamp. The clamp comprises a base, a disc cover and multiple clamping claws. The disc cover comprises a circle of disc cover side plate and a disc cover top plate. Multiple top plate guide grooves are formed in the disc cover top plate. Each clamping claw comprises a clamping claw sliding rail and a clamping claw pressure head. The top faces of the clamping claw sliding rails are located above the disc cover top plate, and the clamping claw pressure heads are mounted on the top faces of the clamping claw sliding rails through locking bolts. At least part of each clamping claw pressure head can stretch out of the corresponding clamping claw sliding rail by facing the center of the disc cover top plate. A transmission device used for driving the multiple clamping claw sliding rails to move synchronously is mounted in the disc cover. According to the clamp, self centering of a sample disc can be achieved, it is ensured that the sample disc is located at the center position of the disc cover plate, meanwhile, peripheral and axial fixing of the sample disc is achieved, loosening and up-and-down motion are avoided in the experiment process of the sample disc, and testing precision is improved.

Description

technical field [0001] The invention relates to the technical field of testing devices, in particular to a fixture. Background technique [0002] At present, there are two main types of sample disc fixing devices on the friction and wear testing machine: [0003] A fixing device: the axial positioning of the sample disk is reliable, but the circumferential fixation of the sample disk is not firm, there are gaps after installation, and the sample disk may slide and shift during the test, which will affect the test results. [0004] Another fixing device: the circumferential positioning of the sample disk is firm, and the sample will not shift in the circumferential direction after installation, but the axial direction of the sample disk is not reliably fixed. Due to the test loading, the eccentric force Under the action of , the sample plate will produce a slight fluctuation up and down, which will affect the experimental results. [0005] In view of this, it is necessary t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B11/00
CPCB25B11/00
Inventor 杨增幅王旭东魏子良曹世峰皇志富秦朝风艾兵张树瑜罗剑房敏王亚
Owner SHENHUA SHENDONG COAL GRP
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