High-precision five-shaft multi-dimensional ultrasonic polishing device

Abstract

The invention relates to a high-precision five-shaft multi-dimensional ultrasonic polishing device, and belongs to the field of polishing of a complicated curved surface element which has high precision and is difficult to machine. An upright guide rail is arranged at the upper part of an L-shaped base; an upright rotary table capable of moving up and down is arranged on the upright guide rail; a polishing tool head vibrator assembly is arranged on the upright rotary table; a horizontal guide rail I is arranged at the lower part of the L-shaped base; a horizontal guide rail II capable of moving forwards and backwards is arranged on the horizontal guide rail I; a horihzontal rotary tool table capable of moving leftwards and rightwards is arranged on the horizontal guide rail II; the vibration radiation surfaces of ultrasonic vibration exciting assemblies I and II in the horizontal rotary tool table are respectively in contact with two mutually perpendicular side surfaces of a workpiece clamp; one end of a three-degree-of-freedom mechanical arm is connected to the lower part of the L-shaped base in a rotatable manner; and an ultrasonic atomization spraying head is arranged at the other end of the three-degree-of-freedom mechanical arm. The device comprises multiple guide rails and the rotary table, thus providing five degrees of freedom, and can realize polishing of a complicated curved surface to complete machining of a complicated part which is difficult to machine with an existing machine tool.

Description

technical field [0001] The invention relates to a high-precision five-axis multi-dimensional ultrasonic polishing device, which belongs to the field of high-precision, difficult-to-process material complex curved surface element polishing. Background technique [0002] The production efficiency and cost of high-precision, difficult-to-machine materials and complex curved surface components have become one of the symbols to measure the modernization level of a country's optical industry and even the entire manufacturing industry. The polishing process is the last process in the manufacturing process of optical curved surfaces, which plays a vital role in ensuring the quality and service life of curved surfaces. However, the polishing time of optical curved surfaces is long and the productivity is low. The entire polishing time accounts for more than 60% of the total manufacturing time. How to improve the polishing efficiency and enhance the certainty of the polishing process ...

AI Technical Summary

Problems solved by technology

However, the polishing time of optical curved surfaces is long and the productivity is low. The entire polishing time accounts for more than 60% of the total manufacturing time. How to improve the polishing efficiency and enhance the certainty of the polishing process is a research hotspot in the field of optical manufacturing.

[0003] Traditional polishing processing methods have low removal efficiency for hard and brittle materials, and it is difficult to ensure the quality and accuracy of the processed surface of materials

The traditional polishing process generally uses devices such as polishing discs and polishing pads, which can only realize the processing of flat surfaces. There is no stable, efficient and accurate processing device and processing method for complex curved surfaces of difficult-to-machine materials.

[0004] In addition, the polishing liquid contains high-hardness abrasive particles. The uniformity of particle distribution directly affects the polishing efficiency and the quality of the processed surface. The particles themselves are prone to stratification and precipitation. Efficiency will increase, but the roughness of the workpiece surface will also increase, which will also increase the probability of damage and scratches on the workpiece surface. Parts with too little particle distribution will be difficult to guarantee material removal, which is not conducive to the uniformity of the processed surface

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