Non-contact type polishing machine with automatic gap adjusting function

Abstract

The invention discloses a non-contact type polishing machine with an automatic gap adjusting function. The non-contact type polishing machine comprises a control console, a lifting device, a supporting frame, an upper polishing disc, a lower polishing disc, a grating ruler, a driving device and a bottom support. The lower polishing disc is installed in the bottom support. Both the control console and the supporting frame are fixed to the bottom support. The upper polishing disc is fixed to the supporting frame through the lifting device. The lifting device drives the upper polishing disc to move up and down. The lower polishing disc is connected with the driving device through a belt, the driving device is arranged on the bottom support, the driving device drives the lower polishing disc to rotate through the belt, and the grating ruler is fixed to the supporting frame. The grating ruler capable of measuring the polishing gap between the upper polishing disc and the lower polishing disc in real time is arranged, the gap is fed back to a PLC, the PLC compares data with preset parameters, and real-time adjustment is carried out. Accordingly, automatic machining of the device is achieved, on one hand, the precious time of experimenters is saved, and on the other hand, the accuracy of experiment results is greatly improved.

Description

technical field [0001] The invention relates to the technical field of grinding and polishing, and more specifically relates to a non-contact polishing machine with automatic gap adjustment. Background technique [0002] The expansion of the application range of ultra-precision machining and the continuous improvement of its application precision have put forward higher requirements for the instruments and means of ultra-precision machining. As a means of final processing, ultra-precision processing technology has attracted more and more attention from the scientific research circles all over the world. Therefore, it is particularly important to master the mechanism of material removal in ultra-precision machining and to develop a series of experimental devices for this aspect of machining on this basis. [0003] The Chinese invention patent whose patent publication number is CN205342678U discloses a kind of hydrodynamic pressure suspension polishing device. A wedge-shaped ...

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Problems solved by technology

[0003] The Chinese invention patent whose patent publication number is CN205342678U discloses a kind of hydrodynamic pressure suspension polishing device. A wedge-shaped groove is opened on the polishing disk attached to the workpiece to form a wedge-shaped effect at high speed and small gap, so that the polishing disk Drive the ball spline shaft to float up along the sleeve to achieve uniform non-contact polishing, and measure the up and down floating distance of the balance plate during the polishing process through the laser displacement sensor installed on the bottom plate, but the polishing disc will start to move during the processing , a little deviation will bring great deviation to the measurement results of the laser displacement sensor

[0004] In this type of processing device, it is necessary to precisely control the polishing gap between the two polishing discs to ensure the accuracy of processing. A slight deviation in the processing gap will have a huge impact on the experimental results; while in the previous experimental device , often lack such precise control, because it is easy to vibrate during the grinding and polishing process, so the machining gap is not easy to control accurately

In this way, a lot of time of the experimenters is often wasted, and the experimental data generated are not necessarily accurate.

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