Planetary gear transmission mechanism

Abstract

The invention discloses a planetary gear transmission mechanism. The planetary gear transmission mechanism comprises a planetary gear assembly and at least one clutch assembly arranged below the planetary gear assembly; and the planetary gear assembly comprises a transmission main shaft extending longitudinally, a transmission gear arranged on the transmission main shaft in a sleeving mode, and atleast two sub-planetary gears meshed with the periphery of the transmission gear, wherein a sub-transmission shaft extending longitudinally is fixedly connected to the center of the upper end face ofeach sub-planetary gear, and the transmission gear is fixedly connected with the transmission main shaft. According to the planetary gear transmission mechanism, the response of the planetary gear transmission mechanism is sensitive, and thus the brake feedback delay phenomenon is greatly reduced; and meanwhile, the planetary gear assembly can be timely braked, so that the polishing error is further reduced, and the polishing machining precision of 3D curved glass can be improved.

Description

technical field [0001] The invention relates to the field of 3D curved glass preparation, in particular to a planetary gear transmission mechanism. Background technique [0002] The glass cover plates used on the displays of smart terminal products in the existing market can be divided into: 2D glass, 2.5D glass and 3D curved glass. Among them, 2D glass is ordinary pure flat glass without any curved design; 2.5D glass is The middle is a flat design, and the edge adopts a curved design; the 3D curved glass can be designed as a curved arc in the middle and the edge. 3D curved glass is mainly bent by a hot bending machine, which can achieve a higher bending arc. Some physical properties of 3D curved glass are obviously better than 2D and 2.5D glass. 3D curved glass has the advantages of being light and thin, transparent and clean, anti-fingerprint, anti-glare, hard, scratch-resistant, and good weather resistance. Better display and touch experience. [0003] At present, the ...

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Problems solved by technology

[0004] Due to the specificity of its own structure, 3D curved glass has more curved surfaces on its surface. Therefore, in the grinding and polishing process, the 3D curved glass should be rotated from time to time to make the surface polishing intrusion uniform in size and meet the design requirements. When the 3D curved glass rotates to the specified position, it is necessary to brake the continuously rotating planetary gear assembly and stop at this position for a certain period of time. The existing planetary gear transmission mechanism has the following problems: First, there is a delay in the braking feedback phenomenon, so that there is a large deviation in the positioning position of the 3D curved glass, which affects the polishing quality; secondly, after braking, the gear cannot be stopped in a short period of time, which leads to a further increase in the positioning deviation of the 3D curved glass, and finally leads to a larger polishing error. Large, unable to meet design requirements

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