CN205085393U - A hypervelocity air bearing motor for mirror surface digit control machine tool - Google Patents
A hypervelocity air bearing motor for mirror surface digit control machine tool Download PDFInfo
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- CN205085393U CN205085393U CN201520573189.3U CN201520573189U CN205085393U CN 205085393 U CN205085393 U CN 205085393U CN 201520573189 U CN201520573189 U CN 201520573189U CN 205085393 U CN205085393 U CN 205085393U
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- air bearing
- main shaft
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Abstract
A hypervelocity air bearing motor for mirror surface digit control machine tool to effective running accuracy and stability that improves the axle, and motor moving heat dispersion make processing reach mirror effect. Including main shaft (1 and the motor that constitutes by electric motor rotor, motor spindle to reach the air bearing who provides the support for the main shaft. The back end journal and the electric motor rotor tight fit of main shaft are connected, and preceding end journal position sets up footstep bearing. Air bearing adopts and takes the radial air bearing of thrust, and motor, main shaft, air bearing subassembly fixed mounting are in the steel sleeve who is provided with cooling water system for water cooled generator.
Description
Technical field
The utility model relates to Digit Control Machine Tool, particularly a kind of ultrahigh speed air bearing motor for minute surface Digit Control Machine Tool.
Background technology
Due to the progress of science and technology, the demand of people to electronic product is not only original functional requirement, develop into and have high requirement to outward appearance, aesthetic feeling, and polishing produces very large negative effect to people, to environment, therefore create minute surface Digit Control Machine Tool (CNC), the product requiring minute surface CNC machine to process is issued to mirror effect in the situation not through polishing.The maximum difficulty of minute surface CNC machine is the motor cut, and needs the rotating speed of superelevation, minimum vibration, high rigidity, also wants good heat dispersion etc.
At present, adapted air bearing motor is poor in motor temperature rise control on the market, and during long time running, the motor feels hot, causes thermal expansion, reduces motor precision, and due to machining accuracy and design reasons, the vibration of axle is large, and processing effect cannot reach mirror effect.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of ultrahigh speed air bearing motor for minute surface Digit Control Machine Tool, effectively to improve running accuracy and the stability of axle, and the heat dispersion of motor rotation, make processing reach mirror effect.
It is as follows that the utility model solves the technical scheme that its technical problem adopts:
A kind of ultrahigh speed air bearing motor for minute surface Digit Control Machine Tool of the present utility model, comprise main shaft (1 and the motor that is made up of rotor, motor spindle, and the air bearing to provide support for main shaft, it is characterized in that: the rear end-journal of described main shaft and rotor tight fit connection, axle journal position, front end arranges thrust bearing; Described air bearing adopts band thrust radial air bearing, and motor, main shaft, air bearing assembly are fixedly installed in and are provided with in the steel bushing of water cooling system.
The L/D ratio of described main shaft is 7 ~ 10.
The beneficial effects of the utility model are, adopt the air bearing of front and back bearings all-in-one-piece band thrust function and single thrust bearing, support and adopt air, can recycle, resource is inexhaustible, achieve pollution-free, nothing friction, achieve ultrahigh speed running (100,000 turns per minute) and low vibration (100,000 turns time, maximum shock value is less than 0.2mm/S); The air bearing design of front and back bearings all-in-one-piece band thrust function, ensure that front and back bearings is definitely concentric, reduces the assembling difficulty of motor, improve running accuracy and the stability of axle.Rear-mounted motor, heat is made to be convenient to be taken away by rearmounted cooling circuit, reduce the operating temperature of whole motor, whole motor housing comprises front thrust circulating water, ensure that motor still maintains stationary temperature under ultrahigh speed operating condition, motor 24 hours work, motor shaft temperature rise is no more than 5 DEG C, thus ensure that motor not expanded by heating factor and reduce the properties of motor in long-term work; Slender axles design, enable axle under ultrahigh speed state, keep good stability and high rigidity by modifier treatment, reach the quick response of slender axles in air bearing, absorb the vibration caused in High-speed machining, thus make the surface of part to be processed obtain high flatness and brightness.
Accompanying drawing explanation
This description comprises following three width accompanying drawings:
Fig. 1 is the structure chart of a kind of ultrahigh speed air bearing motor for minute surface Digit Control Machine Tool of the utility model;
Fig. 2 be a kind of ultrahigh speed air bearing motor for minute surface Digit Control Machine Tool of utility model front view;
Fig. 3 be a kind of ultrahigh speed air bearing motor for minute surface Digit Control Machine Tool of utility model left view;
Parts shown in figure, position and corresponding mark: overcoat 10, front securing cover plate 10a, rear fixed cap 10b, inner sleeve 11, body 11, rotor 12a, motor spindle 12b, main shaft 12, band thrust radial air bearing 14, thrust bearing 15, dust ring 16, cooling circuit 20a, thrust bearing cooling water channel 20b, air-in 21, cooling water input port 22, motor down-lead mouth 23, cooling water delivery outlet 24.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated.
See figures.1.and.2, a kind of ultrahigh speed air bearing motor for minute surface Digit Control Machine Tool of the present utility model, the motor comprising main shaft 12 and be made up of rotor 12a, motor spindle 12b, and the air bearing 14 provided support for main shaft 12.The rear end-journal of described main shaft 12 and rotor 12a tight fit connection, axle journal position, front end arranges thrust bearing 15.Described air bearing 14 adopts band thrust radial air bearing.Motor, main shaft 12, air bearing 14 assembly are fixedly installed in and are provided with in the steel bushing of water cooling system.Adopt the air bearing of front and back bearings all-in-one-piece band thrust function and single thrust bearing, support and adopt air, can recycle, resource is inexhaustible, achieve pollution-free, nothing friction, achieve ultrahigh speed running (100,000 turns per minute) and low vibration.The air bearing design of front and back bearings all-in-one-piece band thrust function, ensure that front and back bearings is definitely concentric, reduces the assembling difficulty of motor, improve running accuracy and the stability of axle.Rear-mounted motor, is made heat be convenient to be taken away by rearmounted cooling circuit, reduces the operating temperature of whole motor.
With reference to Fig. 1, the L/D ratio of described main shaft 12 is 7 ~ 10.Namely slender axles design is adopted, pass through modifier treatment, enable axle under ultrahigh speed state, keep good stability and high rigidity, reach the quick response of slender axles in air bearing, absorb the vibration caused in High-speed machining, thus make the surface of part to be processed obtain high flatness and brightness.
With reference to Fig. 1 and Fig. 3, described steel bushing is made up of overcoat 10, inner sleeve 11 and front securing cover plate 10a, rear fixed cap 10b, is provided with cooling circuit 20a between overcoat 10, inner sleeve 11.Rear fixed cap 10b is provided with air-in 21, cooling water input port 22, motor down-lead mouth 23 and cooling water delivery outlet 24, air-in 21 is connected with the air flue of air bearing 14, and cooling water input port 22, cooling water delivery outlet 24 are connected with cooling circuit 20a.Described thrust bearing 15 is provided with thrust bearing cooling water channel 20b with front securing cover plate 10a, and this thrust bearing cooling water channel 20b is connected with cooling circuit 20a.Whole motor housing comprises front thrust circulating water, ensure that motor still maintains stationary temperature under ultrahigh speed operating condition, motor work in 24 hours, motor shaft temperature rise is no more than 5 °, thus ensure that motor not expanded by heating factor and reduce the properties of motor in long-term work.
With reference to Fig. 1, described main shaft 12 is fixedly installed dust ring 16 between thrust bearing 15 and front securing cover plate 10a, by the exhaust of air bearing self, plays good dustproof effect.
The above principle more of the present utility model that just explain through diagrams, be not the utility model to be confined to shown in and in described concrete structure and the scope of application, therefore every corresponding modify of being likely utilized and equivalent, all belong to the scope of the claims that the utility model is applied for.
Claims (5)
1. the ultrahigh speed air bearing motor for minute surface Digit Control Machine Tool, the motor comprising main shaft (12) and be made up of rotor (12a), motor spindle (12b), and the air bearing (14) to provide support for main shaft (12), it is characterized in that: the rear end-journal of described main shaft (12) and rotor (12a) tight fit connection, axle journal position, front end arranges thrust bearing (15); Described air bearing (14) adopts band thrust radial air bearing, and motor, main shaft (12), air bearing (14) assembly are fixedly installed in and are provided with in the steel bushing of water cooling system.
2. a kind of ultrahigh speed air bearing motor for minute surface Digit Control Machine Tool as claimed in claim 1, is characterized in that: the L/D ratio of described main shaft (12) is 7 ~ 10.
3. a kind of ultrahigh speed air bearing motor for minute surface Digit Control Machine Tool as claimed in claim 1 or 2, it is characterized in that: described steel bushing is made up of overcoat (10), inner sleeve (11) and front securing cover plate (10a), rear fixed cap (10b), between overcoat (10), inner sleeve (11), be provided with cooling circuit (20a); Rear fixed cap (10b) is provided with air-in (21), cooling water input port (22), motor down-lead mouth (23) and cooling water delivery outlet (24), air-in (21) is connected with the air flue of air bearing (14), and cooling water input port (22), cooling water delivery outlet (24) are connected with cooling circuit (20a).
4. a kind of ultrahigh speed air bearing motor for minute surface Digit Control Machine Tool as claimed in claim 3, it is characterized in that: described thrust bearing (15) and front securing cover plate (10a) are provided with thrust bearing cooling water channel (20b), and this thrust bearing cooling water channel (20b) is connected with cooling circuit (20a).
5. a kind of ultrahigh speed air bearing motor for minute surface Digit Control Machine Tool as claimed in claim 3, is characterized in that: described main shaft (12) is fixedly installed dust ring (16) between thrust bearing (15) and front securing cover plate (10a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520573189.3U CN205085393U (en) | 2015-07-31 | 2015-07-31 | A hypervelocity air bearing motor for mirror surface digit control machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520573189.3U CN205085393U (en) | 2015-07-31 | 2015-07-31 | A hypervelocity air bearing motor for mirror surface digit control machine tool |
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| Publication Number | Publication Date |
|---|---|
| CN205085393U true CN205085393U (en) | 2016-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520573189.3U Active CN205085393U (en) | 2015-07-31 | 2015-07-31 | A hypervelocity air bearing motor for mirror surface digit control machine tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215384A (en) * | 2015-07-31 | 2016-01-06 | 四川省兴旺达精密机电有限公司 | A kind of ultrahigh speed air bearing motor for minute surface Digit Control Machine Tool |
-
2015
- 2015-07-31 CN CN201520573189.3U patent/CN205085393U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215384A (en) * | 2015-07-31 | 2016-01-06 | 四川省兴旺达精密机电有限公司 | A kind of ultrahigh speed air bearing motor for minute surface Digit Control Machine Tool |
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