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Horizontal sliding type hydraulic clamp piston anti-rotating frame

A technology of hydraulic fixture and anti-rotation structure, applied in measuring devices, instruments, scientific instruments, etc., can solve the problems of high machining accuracy requirements and assembly difficulties of piston assemblies, and achieve the requirements of reducing machining accuracy, reducing machining difficulty, The effect of easy assembly

Active Publication Date: 2010-12-22
SHANGHAI HUALONG TEST INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, not only the machining accuracy of the piston assembly is very high, but also the assembly is more difficult.

Method used

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  • Horizontal sliding type hydraulic clamp piston anti-rotating frame
  • Horizontal sliding type hydraulic clamp piston anti-rotating frame
  • Horizontal sliding type hydraulic clamp piston anti-rotating frame

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] Such as figure 1 Shown: a piston anti-rotation structure of a horizontal push hydraulic clamp, including a piston 8 and a piston rod 9 set in the hydraulic cylinder body, the axis of the piston rod 9 deviates from the axis of the piston 8, and the outer side of the piston 8 is sealed by the end cover 1 One end of the piston rod 9 is connected to the jaw 7 by a jaw fastening screw 11 , and the other end of the piston rod 9 is connected to the piston 8 by a piston fastening screw 12 .

[0022] Since the axis of the piston rod 9 and the axis of the piston 8 deviate from each other, the range of the eccentric value L is 6mm---12mm; the piston 8 and the piston rod 9 are prevented from rotating along any of their central axes, and the piston 8 and the piston rod 9 can only The linear movement in the hydraulic cylinder ensures the normal clamping of the sample by the jaws 7 connected with the connecting rod 9 .

[0023] The piston fastening screws 12 are symmetrically distri...

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PUM

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Abstract

The invention relates to a horizontal sliding type hydraulic clamp piston anti-rotating frame, which comprises a piston and a piston rod sleeved in a fluid cylinder body, an axis of the piston rod is deviated from the axis of the piston, the outside of the piston is sealed by an end closure, one end of the piston rod is connected with a jaw through a jaw fastening screw, while the other end is connected with the piston through a piston fastening screw. The axis of the piston rod is deviated from the axis of the piston mutually with an eccentricity value L so as to prevent the piston and the piston rod from rotating along any axle wire of the piston and the piston rod. The piston and the piston rod only can do linear motion in the fluid cylinder body, which guarantees the normal holding ofthe jaw connected with a connecting rod to a sample.

Description

technical field [0001] The invention relates to a piston anti-rotation structure of a horizontal pushing hydraulic fixture, which is specifically applied to a horizontal pushing hydraulic tensioning fixture equipped with a material testing machine and belongs to the field of material testing. Background technique [0002] The material testing machine is one of the experimental equipment for testing various mechanical properties of materials in the field of material research. The horizontal push hydraulic fixture is one of the latest material testing machine fixtures, and it is mainly equipped on the material testing machine with a load greater than or equal to 100kN. , suitable for clamping samples such as plates, bars, pipes, etc. It has the characteristics of convenient loading and unloading of samples, a small number of jaws, a large clamping range, and convenient replacement of jaws. The jaws of the common horizontal push hydraulic clamps are divided into two types: flat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/04
Inventor 赵又杰
Owner SHANGHAI HUALONG TEST INSTR