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A device for increasing the clamping force of magnetorheological fluid flexible clamps

A magneto-rheological fluid and flexible fixture technology, which is applied in the field of pressurization devices, can solve the problems of low static yield stress and great difference in strength of magnetorheological fluid, and achieve the effect of enhancing the static yield stress

Active Publication Date: 2019-03-19
嘉兴彩虹光学膜片科技有限公司
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Problems solved by technology

[0011] However, the static yield stress of magnetorheological fluid is relatively low, which is far from the strength required for practical applications.

Method used

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  • A device for increasing the clamping force of magnetorheological fluid flexible clamps

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Embodiment Construction

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0018] The device is mainly composed of an electromagnetic coil 1, a processed workpiece 2, a telescopic conductive ring 3, a magneto-rheological fluid 4, a telescopic insulating container 5, and an insulating isolation ring 6. The magnetorheological fluid 4 and the processed workpiece 2 are placed in the telescopic insulating container 5. The outer shape of the telescopic insulating container 5 is a cylinder with one end open, which is used for the tool to extend into the surface of the processed workpiece 2 to process it, and the telescopic insulation The height of the magnetorheological fluid 4 in the container 5 should not exceed the processed area of ​​the processed workpiece 2, and the telescopic conductive ring 3 is set on the outer surface of the telescopic insulating container 5. The effect on the deformation caused by the telescopic ...

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Abstract

The invention relates to a device for increasing clamping force of a magnetorheological fluid flexible fixture. Magnetorheological fluid increases the clamping force of the flexible fixture in the application field of the flexible fixture to guarantee normal workpiece machining. The device mainly consists of an electromagnetic coil, a machined workpiece, an extension electric conducting ring, the magnetorheological fluid, an extension insulation container and an insulation isolation ring. When the electromagnetic coil is electrified, the magnetorheological fluid generates a magnetorheological effect, so that the magnetorheological fluid instantly changes from a low-viscosity and high-fluidity newtonian fluid to a high-viscosity and low-fluidity Bingham fluid to form a chain in a magnetic field direction to clamp the workpiece with an irregular shape; meanwhile, current is conducted to the extension electric conducting ring; an electrifying conductor is suffered from ampere force in a magnetic field; the current direction and the magnetic field direction are adjusted according to a left-hand rule, so that the generated force extrudes the magnetorheological fluid in the center direction of the device; and the chain in the magnetorheological fluid is continuously thickened by extruding, so that the workpiece is firmly clamped to guarantee normal machining.

Description

technical field [0001] The invention relates to a pressurizing device, in particular to a device for increasing the clamping force of a magnetorheological fluid flexible clamp. Background technique [0002] The rapid development of modern manufacturing industry has put forward higher requirements for processing automation and product updating. In product processing, positioning and clamping of components are essential. However, compared with CNC machining, flexible manufacturing system (FMS) and computer integrated manufacturing (CIM), the automation of fixture design, manufacturing and assembly is the lowest, and it cannot adapt to different processing objects. In addition, the positioning and clamping of mechanical fixtures with low rigidity and irregular geometric shapes are often incapable, or even helpless. In order to meet the requirements of modern industry for fixtures, here is an experimental and theoretical study on the feasibility of a flexible fixture designed u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q3/00
CPCB23Q3/00
Inventor 张广
Owner 嘉兴彩虹光学膜片科技有限公司
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