A single-excitation two-dimensional ultrasonic vibration-assisted microfabrication platform

Abstract

The invention belongs to the technical field of ultrasonic machining of non-traditional machining technologies and discloses a single-excitation two-dimensional ultrasonic vibration-assisted micro machining platform. The single-excitation two-dimensional ultrasonic vibration-assisted micro machining platform comprises a right-angle-shaped bottom plate, linear guide rails, an upper vibration block, a lower vibration block, supporting plates, amplitude-change poles, transducers and an ultrasonic generator. The upper vibration block and the lower vibration block are perpendicular to each other in the feeding and cutting edge working engagement directions. The lower vibration block is connected with the bottom plate through the corresponding linear guide rail, and the lower vibration block is connected with the upper vibration block through the corresponding linear guide rail. A workpiece is fixed to the upper vibration block in a threaded connection mode. The vibration blocks are connected with the amplitude-change poles through studs, and the amplitude-change poles are connected with the transducers through studs. The two amplitude-change poles are fixed to the bottom plate through the supporting plates at joints. The two transducers are connected with the same ultrasonic generator through guide lines, two ultrasonic signals are output simultaneously, the phase difference adjusting function is achieved, by adjusting the amplitude and phase difference of the output signals of the ultrasonic generator, different elliptical vibration paths are coupled according to actual demands, and high-efficiency and high-precision machining is achieved.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic processing in special processing technology, relates to the field of micromachining assisted by two-dimensional ultrasonic vibration, and particularly relates to a single-excitation two-dimensional ultrasonic vibration assisted micromachining platform. Background technique [0002] In recent years, ultrasonic machining has been proven to be a special processing method with strong technological advantages, which can effectively reduce cutting force and cutting heat, improve workpiece surface quality and chip formation, and improve machining accuracy, tool durability and machining stability. It can well solve the processing problems of difficult-to-machine materials, non-metal materials, and parts with high surface quality requirements. As an emerging special processing technology, it has attracted extensive attention from domestic and foreign experts and scholars. [0003] At present, the resear...

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Problems solved by technology

[0003] At present, the research on ultrasonic vibration-assisted milling and grinding is mainly based on the one-dimensional ultrasonic vibration of the spindle. This method requires a large change to the spindle, which affects the inherent high machining accuracy of the machine tool spindle, and the ultrasonic amplitude generated is relatively small. Small

The research on 2D ultrasonic vibration assisted machining is still in the exploratory stage, and there are still many technical problems to be solved in applying 2D ultrasonic vibration to the spindle.

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