Mainshaft transmission system of numerically-controlled precise grinding polisher

Abstract

The invention relates to the technical field of numerically-controlled precise grinding polishers and particularly relates to a mainshaft transmission system of the numerically-controlled precise grinding polisher. The mainshaft transmission system comprises a main motor (1) arranged on a stand and a main supporting seat (2); the mainshaft transmission system is characterized in that a supporting sleeve (24) is arranged on the main supporting seat (2); the lower part of a lifting sleeve (36) is provided with a lifting mechanism (41); a gear ring sleeve (25) is arranged on the lifting sleeve (36); the gear ring sleeve (25) is provided with a gear ring driven gear (26); the inside of the supporting sleeve (24) is provided with a lower disc shaft (23) through a bearing; the inside of the lower disc shaft (23) is provided with a solar axle (22) through a bearing; the inside of the solar axle (22) is provided with a central axis (16) through a bearing; the upper part of the central axis (16) is fixedly connected with a dividing wheel (17) for driving an upper disc to rotate; and the lower part of the central axis (16) and the main supporting seat (2) are mounted and positioned through bearings. The mainshaft transmission system can be dragged by one or more servo motors, has wide speed regulation range, higher moving precision, rapider response speed and strong antijamming capacity.

Description

Technical field: [0001] The invention relates to the technical field of numerically controlled precision grinding and polishing machines, and mainly relates to a spindle transmission system of a numerically controlled precision grinding and polishing machine. Background technique: [0002] The traditional grinding and polishing machine is often driven by a single motor, and the transmission of the upper and lower polishing discs and the inner and outer ring gears is realized through the gear transmission system. There are only two speed ratios between the upper and lower polishing discs and the planetary wheels, which limits the change of the processing trajectory of the double-sided polishing machine. Lack of precise control over speed. [0003] Chinese patent 02292538.4, a double-sided polishing machine planetary disk, the planetary disk is provided with three eccentric holes, and three separators are respectively placed in the three eccentric holes. Through the improvemen...

AI Technical Summary

Problems solved by technology

[0002] The traditional grinding and polishing machine is often driven by a single motor, and the transmission of the upper and lower polishing discs and the inner and outer ring gears is realized through the gear transmission system. There are only two speed ratios between the upper and lower polishing discs and the planetary wheels, which limits the change of the processing trajectory of the double-sided polishing machine. Lack of precise control over speed

[0003] Chinese patent 02292538.4, a double-sided polishing machine planetary disk, the planetary disk is provided with three eccentric holes, and three separators are respectively placed in the three eccentric holes. Through the improvement of the planetary disk, the polishing yield can be partially improved , and improve the polishing efficiency, but because it still adopts the two-axis or three-axis transmission mode of the traditional grinding and polishing machine, it cannot realize stepless speed regulation, cannot adjust the pressure of the upper polishing disc, the processing stability is poor, and the efficiency is also low

[0004] The Chinese invention patent with the application number of 200710068278.2 discloses a spindle transmission mechanism of a precision double-sided polishing machine, which uses the principle of four variable frequency motors to drive the upper and lower polishing discs and the inner and outer ring gears respectively to realize the transmission, and adopts the shaft sleeve structure , although the stepless speed regulation is realized, the soft start and soft stop of the processing process improve the working efficiency and processing accuracy of the polishing machine, but because the variable frequency motor needs to be controlled by a frequency converter, it has high requirements on the use conditions and slow dynamic response , poor anti-interference ability, not suitable for high-torque processing requirements; especially for high-precision grinding and polishing equipment, the manufacturing error of the shaft sleeve structure itself will also cause jumping and vibration of the upper and lower grinding discs, which cannot meet high-precision grinding and polishing equipment. and ultra-high precision processing requirements

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