High-precision and low-energy-consumption high-speed air floating type electric spindle

Abstract

The invention relates to a high-precision and low-energy-consumption high-speed air floating type electric spindle. The high-precision and low-energy-consumption high-speed air floating type electricspindle comprises a body mechanism, a rotor mechanism, a bearing mechanism, a stator mechanism, an air cylinder mechanism and a rear base mechanism. The rotor mechanism comprises a shaft core, an ejector rod, a pull rod, a spring assembly and a chuck. The chuck is connected with the pull rod through a screw. The bearing mechanism comprises a thrust bearing, a front bearing assembly and a rear bearing assembly. The shaft core is provided with an extension part connected with the thrust bearing. A thrust clearance ring is arranged between the thrust bearing and the front bearing assembly. The thrust bearing is provided with a dustproof mechanism. The high-precision and low-energy-consumption high-speed air floating type electric spindle has the beneficial effects that a composite bearing inner sleeve is embedded in an air hydrostatic bearing of the air floating spindle, abrasion resistance is good, self-lubricating and self-centering can be conducted, and friction with the shaft core iseffectively avoided; an efficient circulation water cooling channel is adopted, and higher CPK precision and rotation speed are achieved; a reasonable damping plug is embedded in the bearing, air consumption is greatly reduced, and cost is saved; and the excellent motor torque and tool gripping force are achieved, and high adaptability and practicability are achieved.

Description

technical field [0001] The invention relates to an electric spindle, in particular to a high-speed aerostatic suspension electric spindle with high precision and low energy consumption, which is easy to install and maintain. Background technique [0002] In the existing technology, the ordinary air-floating high-speed electric spindle consumes a lot of air, and its processing power, speed, spindle torque, and spindle gripping method all have certain limitations. With the individuation and diversification of the market, the variety of product materials It puts forward higher requirements for processing efficiency, processing benefits, processing quality and processing methods, and the existing air-bearing spindles are increasingly unable to meet the needs of the market. Contents of the invention [0003] In order to solve the above problems, the present invention aims to provide an electric spindle, in particular a high-speed aerostatic suspension electric spindle with high...

AI Technical Summary

Problems solved by technology

[0002] In the existing technology, the ordinary air-floating high-speed electric spindle consumes a lot of air, and its processing power, speed, spindle torque, and spindle gripping method all have certain limitations. With the individualization and diversification of the market, the variety of product materials It puts forward higher requirements for processing efficiency, processing benefits, processing quality and processing methods, and the existing air bearing spindles are increasingly unable to meet the needs of the market.

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