Ultrasonic gas static electric spindle

Abstract

The invention relates to a machine tool cutting auxiliary device, in particular to an ultrasonic gas static electric spindle. The ultrasonic gas static electric spindle comprises an air bearing shell,an air bearing body and a rotary shaft core, wherein the air bearing shell, the air bearing body and the rotary shaft core are sequentially sleeved from outside to inside. The air bearing body is fixed into the air bearing shell, the rotary shaft core is rotationally arranged in the air bearing body, and the rotary shaft core can move in the axial direction of the air bearing body. A thrust plateis fixedly arranged on the rotary shaft core. The air bearing body comprises a radial bearing body used for cooperating with the periphery of the rotary shaft core, an axial rear thrust bearing bodyused for cooperating with one side of the thrust plate and an axial front thrust bearing body used for cooperating with the other side of the thrust plate. The radial bearing body, the axial rear thrust bearing body and the axial front thrust bearing body are made of nano carbon fiber materials with uniform open air holes, and the densities of the open air holes are different. The ultrasonic gas static electric spindle is simple in structure and simple in control manner, can be in butt joint with a universal tool clamp, and has great economic benefits and application and popularization prospects.

Description

technical field [0001] The invention relates to a cutting auxiliary device of a machine tool, in particular to an ultrasonic gas-static electric spindle. Background technique [0002] At present, the common form of traditional ultrasonic in machine tool equipment is ultrasonic tool handle device, including: ultrasonic power supply, transducer, horn and tool handle and other subsystems. The electrical energy is converted into the mechanical energy of the tool holder vibrating in the axial direction through the transducer and the horn, so that the tool on the tool holder can perform high-frequency vibratory reciprocating feed grinding (turning) on ​​the workpiece to achieve special grinding. (turning) cutting effect. [0003] However, the ultrasonic tool handle device in the prior art has the problems of many components and complex structure, and the tool handle must be dedicated, resulting in a narrow selection range of tools. In the application process, ultrasonic vibratio...

AI Technical Summary

Problems solved by technology

[0003] However, the ultrasonic tool handle device in the prior art has the problems of many parts and complex structure, and the tool handle must be dedicated, resulting in a narrow range of tool options

In the application process, ultrasonic vibration will greatly reduce the life of the spindle bearing and the accuracy of the spindle, resulting in a large amount of maintenance, high cost of use, etc., which greatly restricts the promotion and application of ultrasonic in the processing field

Images