Die matching device of liquid flow suspension ultraprecise cylinder polishing head

Abstract

The invention relates to a die matching device of a liquid flow suspension ultraprecise cylinder polishing head, comprising a computer numerical control module for eliminating hysteresis errors of a transmission lead screw. The computer numerical control module comprises an X-direction stepping motor, a Y-direction stepping motor and a Z-direction stepping motor; the Z-direction stepping motor isconnected with a coupling which is connected with the transmission lead screw; the transmission lead screw is provided with a sliding block for adjusting the position thereof; the sliding block is connected with an X-direction retainer, a Y-direction retainer and a Z-direction retainer in a matching manner; one side of the Z-direction retainer is fixedly provided with a high-speed motor for driving a processing rod to rotate at high speed; the processing rod is connected below the high-speed motor and is provided with an elastic cylinder polishing head rotating at high speed by interference; and the cylinder polishing head is contacted with a rounding surface on a rounding processing device for removing redundant materials on the surface. The die matching device has the advantages of simple structure, high processing accuracy and lower cost.

Description

technical field [0001] The invention relates to a polishing tool mold matching and forming device in the field of precision machining, which is particularly suitable for accurate mold matching of a cylindrical polishing head in liquid flow suspension ultra-precision machining experiments. Background technique [0002] At present, the finishing process of grooves, special-shaped curved surfaces and corner-clearing parts of complex cavities of precision molds is still mainly manual grinding and polishing, which cannot be strengthened at the same time, resulting in poor processing capacity, low production efficiency, and high production costs. Guarantee the processing quality. The liquid suspension ultra-precision machining technology uses the high-speed rotation of the cylindrical polishing head in the processing fluid, and with the help of hydrodynamic pressure, the free abrasive particles in the processing liquid are continuously shot towards the surface of the workpiece. T...

AI Technical Summary

Problems solved by technology

The traditional matching mold uses the mold cavity to pour and form, and produces a cylindrical polishing head assembled on the processing rod connected to the motor head, which has the following disadvantages: 1. The cylindricity accuracy of the cylindrical polishing head after the matching mold is low, and the diameter The circular runout is large, and the gap between the cylindrical polishing head and the workpiece cannot reach the micron level at all, so that the cylindrical polishing head in processing is in contact with the workpiece; Parallel, so that the cylindrical polishing head forms a small angle with the transmission shaft during high-speed rotation, which affects the uniformity of polishing; 3. The surface roughness of the cylindrical polishing head depends on the roughness of the inner surface of the mold in the traditional mold matching process. However, the roughness of the outer surface of the cylindrical polishing head has a certain influence on the dynamic pressure of the liquid in the polishing liquid, which eventually leads to too long processing time, reduced processing quality and increased cost.

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