Thin-walled component machining magneto-rheological flexible fixture device

Abstract

The invention provides a thin-walled component machining magneto-rheological flexible fixture device for clamping a thin-walled component. The flexible fixture device comprises a base assembling body,a magneto-rheological fluid container, a plurality of side box assembling bodies, a plurality of ball screw assembling bodies, and a control unit, wherein the base assembling body comprises a base, aspiral lifting support, a spiral lifter, a servo motor, a box body support, a linear guide rail and sliders, the magneto-rheological fluid container is used for containing magneto-rheological fluid and comprises a box body, an angle plate, a lifting plate and a guide rod, each side box assembling body comprises a side box connected with the corresponding slider through a side box supporting pieceat the bottom, an electromagnet placed in the side body, and a side box cover plate for sealing the side box, each ball screw assembling body comprises a bearing pedestal fixed to the base, a nut base connected with the bearing pedestal and connected with the bottom of the corresponding side body, a ball screw connected with the nut base, a motor base connected with the ball screw and fixed to the base, a coupler arranged in the motor base, and a motor fixed to the motor base and connected with the coupler, and the control unit is in communication connection with a computer.

Description

technical field [0001] The invention belongs to the field of machinery, and in particular relates to a magnetorheological flexible fixture device for processing thin-walled components. Background technique [0002] With the continuous development of aerospace and automobile manufacturing fields, the precision requirements for parts are getting higher and higher. Among them, due to poor rigidity, weak strength, and irregular shape, thin-walled parts are prone to deformation and chatter during processing, resulting in low processing accuracy and reduced processing quality. How to improve the machining accuracy of thin-walled parts to meet the machining requirements has always been a topic of concern in the industry. The shape and rigidity of traditional mechanical fixtures are fixed, and they cannot be in full contact with thin-walled parts. The clamping force is uneven, and often cannot meet the positioning and clamping of workpieces with low rigidity or irregular geometric ...

AI Technical Summary

Problems solved by technology

This is a relatively new fixture so far, which can adapt to thin-walled parts of different shapes and types. However, because it uses permanent magnets as the magnetic current source, the magnetic field strength is limited and the range of clamping force is small, so it can only clamp smaller parts. For the workpiece, when the volume of the magnetorheological fluid is large, the workpiece cannot be stably clamped. At the same time, the magnetic field strength is not adjustable, and the magnet moves relatively cumbersome

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