Automatic grinding and polishing system for crystal blank, and auxiliary machinery of automatic grinding and polishing system

Abstract

The present invention relates to an automatic grinding and polishing system for crystal blanks, comprising: a first rotating frame, wherein a grinding station and a polishing station are provided surrounding the first rotating frame, and the first rotating frame can be rotated and positioned and is provided with at least two drive heads; a material loading station; a material unloading station; and at least one transfer mechanism capable of picking up and laying down a clamp and capable of transferring the clamp between the loading station, the unloading station, and the drive heads on the first rotating frame; wherein a grinding mechanism is provided on the grinding station and a polishing mechanism is provided on the polishing station. Further disclosed is an auxiliary mechanism used by the system. This technical solution can not only realize completely automatic grinding and polishing on a hemispherical bevel of crystal blanks, ensuring the quality of the grinding and polishing, but can also make full use of the advantages of existing types of machine, simplifying the complexities of mechanism actions, while production and maintenance are easy.

Description

technical field [0001] The invention relates to the field of grinding and polishing of crystal products, in particular to an automatic grinding and polishing system for crystal blanks for automatic grinding and polishing of crystal blanks, and auxiliary machinery involved in the system. Background technique [0002] Existing multi-station crystal bevel grinding and polishing machines all adopt a plurality of heads fixed with rhinestone fixtures to rotate for multi-station processing. For example, the patent document whose publication number is CN201179615Y discloses a kind of automatic loading and unloading rhinestone bevel grinding and polishing. The machine includes a frame, on which two rotating frames are arranged side by side, and a machine head is arranged on each of the four sides of the rotating frame, which constitutes seven stations, which are the feeding station, the front hemisphere rough grinding station, and the front hemisphere polisher. position, docking stat...

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Problems solved by technology

During the actual implementation of this technical solution, the inventor found the following problems: First, at the docking station, the two docking fixtures are respectively located on the two rotating frames, which requires high manufacturing precision and is difficult Ensure the docking accuracy; secondly, the machine is large in size, which is difficult to manufacture and transport; thirdly, the space for the docking station, loading station, and unloading station is limited, and the complex structure design and cumbersome actions affect the processing efficiency

However, because the fixtures are circulated on the fixture seats of each processing station, for a crystal blank on a specific fixture, in order to ensure the consistency of its processing at each station, it is necessary to ensure that the fixtures are compatible with each work station. The matching consistency of the fixture seat on the position (including the consistency of the grinding and polishing angle, the turning angle, etc.), and once there is an error, the error accumulation and amplification effect will appear, which is especially important for the grinding and polishing station. If If there is an inconsistency between front and back matching and positioning, the subsequent polishing process will not polish the inclined surface processed by the previous grinding process, resulting in a greatly reduced polishing effect. Accurate positioning on the surface is very important, but for the existing technology and mechanism, it is still quite difficult to achieve the consistency of the fixture and the fixture seat of each station and the accurate positioning of the machine automatically, and there are complicated and cumbersome mechanism actions, which are easy to Failures, high maintenance costs, etc.

Similarly, the use of a complete machine structure also has problems such as large volume and difficulty in transportation and manufacturing.

[0004] Moreover, the above-mentioned patent documents all involve fully automatic grinding and polishing of the upper and lower hemispherical slopes of crystal blanks, and for some crystal blanks, only one hemispherical slope (upper hemispheric slope or lower hemispherical slope) needs to be processed. That is, there is no fully automated grinding and polishing apparatus in this respect in the prior art

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