Hybrid supporting self-balancing machine tool electric spindle structure and control method thereof

An electric spindle and self-balancing technology, which is applied in the direction of manufacturing tools, metal processing machinery parts, large fixed members, etc., can solve the problems of decreased reliability of the magnetic levitation spindle and increased complexity of the control system, etc.

Pending Publication Date: 2019-09-03
NANYANG NORMAL UNIV
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, force coupling, torque coupling, and torque coupling are interrelated; the coupling of sensor signals has influence on force coupling, torque coupling, and torque coupling; therefore, how to decouple has become one of the main directions of researchers. First, at the same time, the high-speed rotation of the rotor causes the shaft to produce a gyro effect, and the channels that can be controlled separately produce coupling, causing the system to become a time-varying parameter system. The uncertainty of the way (parallel fall or oblique fall) also leads to a decrease in the reliability of the magnetic levitation spindle and increases the complexity of the control system

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hybrid supporting self-balancing machine tool electric spindle structure and control method thereof
  • Hybrid supporting self-balancing machine tool electric spindle structure and control method thereof
  • Hybrid supporting self-balancing machine tool electric spindle structure and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as Figure 1-6 Shown: a hybrid supporting self-balancing machine tool electric spindle structure, including a spindle housing 4, a first support member 2 arranged at the rear end of the spindle housing 4, and a spindle body 3 arranged in the spindle housing 4 , the second supporting member 9 arranged at the front end of the main shaft housing 4 and matched with the main shaft body 3 is arranged in the main shaft housing 4 and located at the rear end of the second supporting member 9 for automatic adjustment Auxiliary support mechanism, and a control system arranged on the main shaft housing 4 for controlling the auxiliary support mechanism;

[0038] The main shaft body 4 is a multi-stage stepped shaft, at least including a tapered journal 302 matched with the auxiliary support mechanism, a rear journal 303 matched with the first support member, and a rear journal 303 matched with the first supporting member. The front end journal 301 that the two bearings match. ...

Embodiment 2

[0051] It differs from Embodiment 1 in that:

[0052] The floating supporting member 6 is an elastic rubber block with an air bag in the middle.

[0053] The elastic member 8 is an elastic rubber column.

[0054] The fixed sleeve 12 is a ceramic sleeve.

[0055] The second supporting member 9 is a permanent magnetic block magnetic suspension bearing arranged on the front journal 301 and in contact with the fixed sleeve 12 .

Embodiment 3

[0057] Such as Figure 7 As shown, the difference from Embodiment 1 is that the floating support 6 used in this embodiment is an elastic bellows, and the control system includes a reversing valve 19 communicated with the elastic bellows, and the reversing valve is connected to the elastic bellows. The speed regulating valve 20 is connected, and the speed regulating valve 20 is connected with the booster cylinder 21 to achieve a stable output pressure, and the pressure sensor 22 installed on the pipeline 5 can monitor the air pressure in the pipeline to adjust the gas source switch, and the speed sensor 23 arranged on the pipeline 5 can monitor the size of the airflow, and a check valve 26 is arranged on the pipeline to realize that the pressurized cylinder can leave the air source for short-term work, so that the air source 25 can be Perform intermittent work to reduce energy consumption, and set an overflow safety valve 24 on the pipeline between the speed sensor and the gas ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a hybrid supporting self-balancing machine tool electric spindle structure and a control method thereof. The structure comprises a main shaft shell, a first supporting part, a main shaft body, a second supporting part, an auxiliary supporting mechanism and a control system; the first supporting part is arranged at the rear end in the main shaft shell, the main shaft body isarranged in the main shaft shell, the second supporting part is arranged at the front end of the main shaft shell and matched with the main shaft body, the auxiliary supporting mechanism is arranged in the main shaft shell and located at the rear end of the second supporting part and used for automatically adjusting, and the control system is arranged on the main shaft shell and used for controlling the auxiliary supporting mechanism. According to the structure and control method, the operation is stable and reliable, the automatic balance control of the main shaft can be realized, the phenomenon that the structure is difficult to control due to the electromagnetic coupling is also avoided, the phenomenon that the complexly control of the high-speed main shaft caused by the electromagneticcoupling because of mutual interference of a plurality of electromagnetic bearings is well solved, meanwhile, the problem that the main shaft is impacted and damaged due to the fact that the main shaft has an uncertain free falling phenomenon when the electromagnetic bearing is started, stopped or breaks down is solved.

Description

technical field [0001] The invention relates to the technical field of high-speed precision machine tool components, in particular to a structure of a mixed-support self-balancing machine tool electric spindle and a control method thereof. Background technique [0002] High-speed precision CNC machine tools are one of the technical foundations and development directions of the equipment manufacturing industry. The performance of high-speed spindles is one of the key components that determine the working performance of high-speed precision CNC machine tools. The key technology to realize the high-speed and precision of the spindle is the support technology. The support with good rigidity and damping can improve the dynamic performance of the spindle and even the whole machine tool; at present, the high-speed precision spindle support technology mainly uses ceramic bearings, dynamic and static pressure bearings or magnetic suspension bearings . Magnetic suspension bearings ha...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B23B19/02
CPCB23Q1/70
Inventor 屈重年郭韶华刘旭焱李果仲志国
Owner NANYANG NORMAL UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap