Automatic grinding and polishing system for crystal blanks

Abstract

The invention discloses an automatic grinding and polishing system for crystal blanks. The automatic grinding and polishing system comprises a first left-right transfer mechanism and a second left-right transfer mechanism, feeding and discharging stations, a plurality of upper hemispherical grinding and polishing stations and butting stations are sequentially arranged from left to right along the first left-right transfer mechanism, butting stations, a plurality of lower hemispherical grinding and polishing stations and feeding and discharging stations are sequentially arranged from right to left along the second left-right transfer mechanism, feeding and discharging machines are arranged on the feeding and discharging stations, grinding and polishing machines are arranged on the grinding and polishing stations, butting machines are arranged on the butting stations, each left-right transfer mechanism comprises a plurality of transfer manipulators and a rail linearly extending left and right, the feeding and discharging machines, the grinding and polishing machines and clamp holders for mounting clamps on the butting machines are arranged in a left-right rowed manner along the length direction of the clamps, and the transfer manipulators push the clamps to slide between the left-right adjacent clamp holders along the length direction of the clamps. By the aid of the technical scheme, the automatic grinding and polishing system is more reasonable in structure, simpler in action, lower in cost, more reliable in operation and higher in efficiency.

Description

technical field [0001] The invention belongs to the field of grinding and polishing processing of crystal products, and relates to an automatic grinding and polishing system for crystal blanks for automatic grinding and polishing processing of crystal blanks. Background technique [0002] In the prior art, the automatic grinding and polishing system (grinding and polishing machine) of crystal blanks includes: a feeding station, which is provided with a feeding mechanism capable of fixing the crystal blanks on the fixture; The upper hemisphere grinding station for grinding the hemisphere and at least one upper hemisphere polishing station for polishing the upper hemisphere of the crystal blank; the docking station is provided with the ability to transfer and fix the crystal blank from a fixture to On the other fixture, a docking mechanism capable of exchanging the positions of the two fixtures; at least one lower hemisphere grinding station for grinding the lower hemisphere o...

AI Technical Summary

Problems solved by technology

[0005] The patent document with the publication number CN102366914A discloses an automatic circulation double-fixture jewelry polishing machine. The upper hemisphere grinding and polishing (front grinding and polishing) and the lower hemisphere grinding and polishing (rear grinding and polishing) of the crystal blank are carried out in the same processing cycle ( That is, fixture circulation cycle), wherein, the fixture seats on each station are arranged in parallel to the left and right along the length direction of the fixture (especially the grinding and polishing station), so that when the left and right transfer mechanism transfers the fixture between the stations, it needs to be extended first. Lift the fixture from the fixture seat of one station and then step over the fixture seat mechanism on the corresponding station, and then send it down and place it on the fixture seat of another station. Cumbersome, prone to failure and high cost

Moreover, the docking bracket (i.e. the transfer assembly part) and the waiting bracket (i.e. the fixture reset assembly part) are both 180° rotating structures in the docking mechanism, so there are the following problems: First, because the heating tube in the docking mechanism is generally High-frequency heating tubes or gas fire tubes are used, so generally the heating tubes need to be connected with high-frequency generating equipment or gas supply equipment, etc., and the heating tubes should be installed between the two docking fixtures (seats), that is, installed on the above-mentioned In the adapter assembly, frequent rotations in a wide range of 180 degrees will complicate the connection structure between the heating tube and high-frequency generating equipment or gas supply equipment, and affect the service life; secondly, in order to free up the rotation space of the adapter assembly, The wire brushes and powder discs used for cleaning the upper fixtures and dipping and gluing are set far away from the adapter assembly. Their moving strokes are long and take up a lot of time; Powder gluing and 180-degree rotation are carried out successively, which takes up a lot of time, which prolongs the time occupied by the transfer (docking) station, prolongs the waiting time of other grinding and polishing stations, and lowers the docking efficiency. Processing efficiency of automatic cycle

[0007] However, the above-mentioned structure is that the fixture seats on each station are arranged parallel to the left and right along the length direction of the fixture (especially the grinding and polishing station). Lift the fixture on the fixture seat of the station, and then step over the fixture seat mechanism on the corresponding station, and then send it down and place it on the fixture seat of another station. Such a left-right transfer mechanism is complicated in structure, cumbersome and easy Faulty and costly

In its docking mechanism, the first front and rear transfer mechanism needs to transfer the belt clamp from the docking bracket to the conversion bracket, and then wait for the conversion bracket to rotate 180 ° after the upper and lower positions are reversed, and then the first front and rear transfer mechanism will transfer the material on the conversion bracket The jig with glue is sent to the docking bracket. During this process, the first front and rear transfer mechanism reciprocates the jig, and the docking bracket can only be in a waiting state, which increases the waiting time of the machine, so further improvements are needed to increase production efficiency.

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