A high-speed air-floated glass grinding electric spindle

Abstract

The invention discloses a high-speed air electric spindle for glass grinding. The high-speed air electric spindle comprises a push-and-pull mechanism, a machine body, an upper air bearing component, a lower air bearing component, a stator component and a spindle core, wherein the spindle core is connected with the machine body in a penetrating way; the upper air bearing component is mounted at the upper end of the machine body and supportsthe upper end of the spindle core; the lower air bearing component is mounted at the lower end of the machine body and supports the lower end of the spindle core; the push-and-pull mechanism is in transmission connection with the upper end of the spindle core; the stator component is mounted in the machine body; the spindle core serves as a rotor and is connected in the stator component in a penetrating way; an embedding groove for embedding copper is formed in the outer peripheral wall of the spindle core, and comprises an annular groove section extending along the axial direction of the spindle core, and short-circuit ring sections communicated with the two ends of the annular groove section respectively; the cross sections of the short-circuit ring sections are semicircular; copper is embedded into the annular groove section to form a copper section; and copper is embedded into the short-circuit ring sections to form a short-circuit ring. With the adoption of the high-speed air electric spindle for glass grinding, the improvement of processing efficiency is facilitated.

Description

technical field [0001] The invention relates to an electric spindle, in particular to a high-speed air float glass grinding electric spindle. Background technique [0002] At present, the glass grinding process in the market mostly uses ball electric spindles, and its processing speed is limited to less than 60,000 rpm. The advantage is that it has a large load-carrying capacity, and it is not easy to lock when it is hit or other unexpected situations during processing, but it also has the following disadvantages. : The overall service life is short (about 12 months), and the processing efficiency is low (the processing speed is below 60,000 rpm). [0003] In conventional methods, in order to improve the working efficiency of the electric spindle, it is necessary to increase the bearing capacity and power of the spindle core, and then increase the outer diameter of the shaft core. However, if the outer diameter of the shaft core is increased, it will act as a short circuit o...

AI Technical Summary

Problems solved by technology

[0002] At present, the glass grinding process in the market mostly uses ball electric spindles, and its processing speed is limited to less than 60,000 rpm. The advantage is that it has a large load-carrying capacity, and it is not easy to lock when it is hit or other unexpected situations during processing, but it also has the following disadvantages. : The overall service life is short (about 12 months), and the processing efficiency is low (the processing speed is below 60,000 rpm)

[0003] In conventional methods, in order to improve the working efficiency of the electric spindle, it is necessary to increase the bearing capacity and power of the spindle core, and then increase the outer diameter of the shaft core. However, if the outer diameter of the shaft core is increased, it will act as a short circuit on the rotor shaft core. Ring embedded copper will have defects of insufficient embeddedness, which will reduce the power of the shaft core and reduce work efficiency

Correspondingly, if the outer diameter of the shaft core used as the rotor is increased, and in order to maximize the performance of the stator, the outer diameter of the stator silicon steel sheet will be increased, resulting in a very thin stator jacket, and it is impossible to set up water channels on the stator for cooling. Install O-rings to seal waterways

Images