Two-stage planetary gear transmission mechanism for three-dimensional (3D) curved glass polishing machine

Abstract

The invention discloses a two-stage planetary gear transmission mechanism for a three-dimensional (3D)curved glass polishing machine. The two-stage planetary gear transmission mechanism comprises a sun wheel assembly and at least two groups of planetary gear assemblies; the sun wheel assembly comprises a sun wheel bracket and a sun wheel arranged on the sun wheel bracket; the planetary gear assemblies are engaged with the periphery of the sun wheel, wherein a planet framesynchronously rotated with the sun wheel is arranged over the sun wheel, a feeding and discharging station and one or more polishing stations are successively arranged on the planet frame in the circumferential direction of the planet frame, and the planetary gear assemblies are installed on the planet frame. According tothe two-stage planetary gear transmission mechanism for the 3D curved glass polishing machine, at least two groups of planetary gear assemblies are arranged on the two-stage planetary gear transmission mechanism, agreat deal of 3D curved glass can be synchronously polished, it can be ensured that the rotating angle and amplitude of each 3D curved glass are uniform, and polishing uniformity is improved; meanwhile, a clutch assembly is responsive, and the phenomenon of braking feedback delay is greatly reduced; and meanwhile, the planetary gear assemblies can further be braked in time, and the polishing error is further decreased.

Description

technical field [0001] The invention relates to the field of 3D curved glass preparation, in particular to a two-stage planetary gear transmission mechanism for a 3D curved glass polishing machine. 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 displa...

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Problems solved by technology

[0004] Due to the specificity of its own structure, the 3D curved glass has more curvature on the surface. Therefore, the 3D curved glass should be rotated from time to time in the grinding and polishing process 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: the rotation angle and speed of the vehicle It is not easy to control, and it is also difficult to uniformly control the rotation range of multiple 3D curved glasses carried on the carrier, which makes it difficult to control the size of the polishing intrusion of the 3D curved glass, which eventually leads to uneven polishing and cannot meet the design requirements; secondly, the manufacturing There is a delay in the dynamic feedback, so that there is a large deviation in the positioning position of the 3D curved glass, which affects the polishing quality; again, after braking, the gear cannot be stopped in a short period of time, resulting in a further increase in the positioning deviation of the 3D curved glass, and finally The polishing error is large, which cannot meet the design requirements

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