Fluid plastic thin-wall elastic sleeve clamp with magnetic isolation performance

Abstract

The invention discloses a fluid plastic thin-wall elastic sleeve clamp with magnetic isolation performance. The clamp comprises a clamp body provided with a non-standard flange, a steel ball, an exhaust bolt, magnetic isolation sleeves and a pressure device consisting of a screw bolt, a sliding column, a sliding column sleeve and a rubber sealing ring, wherein a thin-wall elastic sleeve penetrates in the clamp body; an exhaust port is subjected to contact seal by the steel ball and a taper hole line and pressed by the exhaust bolt; the pressure device is arranged in the non-standard flange; the clamp body is provided with a first cooling water channel, a second cooling water channel, a third cooling water channel, a fourth cooling water channel and a fifth cooling water channel; the clamp body is sleeved with the magnetic isolation sleeves; and liquid plastics are filled between the clamp body and the thin-wall elastic sleeve. The fluid plastic thin-wall elastic sleeve clamp with the magnetic isolation performance is high in centering accuracy and convenient to mount, and clamp force on a test piece during clamping is uniform; magnetism of the clamp can be prevented from disturbing an internal magnetic field of a tester, and a radiator is arranged, so that the clamp can operate in an appropriate temperature range; and the clamp can be applicable to various loading modes, can be applied to other equipment and is good in portability.

Description

technical field [0001] The invention relates to a fixture used for a testing machine, in particular to a liquid plastic thin-wall elastic sleeve fixture with magnetic isolation. technical background [0002] The combination of multi-load mode and multi-physics field coupling method is the trend of future development. At present, the loading of the testing machine has developed from a single loading mode such as indentation, tension, and bending to multiple load modes such as tension-bending, tension-torsion, and indentation-bending. It will inevitably be affected by the coupling effect or influence of electromechanical, thermal and magnetic multi-physics fields, which will increase the requirements for environmental tests (high and low temperature tests) and the magnetic field environment of the testing machine. The application on the test machine is limited. Moreover, due to the uneven clamping force of the fixture during clamping, the specimen will be deformed and the ex...

AI Technical Summary

Problems solved by technology

At present, the loading of the testing machine has developed from a single loading mode such as indentation, tension, and bending to multiple load modes such as tension-bending, tension-torsion, and indentation-bending. It will inevitably be affected by the coupling effect or influence of electromechanical, thermal and magnetic multi-physics fields, which will increase the requirements for environmental tests (high and low temperature tests) and the magnetic field environment of the testing machine. The application on the test machine is limited

Moreover, due to the uneven clamping force of the fixture during clamping, the specimen will be deformed and the experimental results will be affected.

Moreover, the existing testing machine fixtures generally adopt mechanical locking, which is difficult to install and disassemble, time-consuming and labor-intensive, and low in efficiency, which will bring great labor intensity in large-scale experiments.

Images