CN215058917U - Electric air-float rotary table - Google Patents
Electric air-float rotary table Download PDFInfo
- Publication number
- CN215058917U CN215058917U CN202120929599.2U CN202120929599U CN215058917U CN 215058917 U CN215058917 U CN 215058917U CN 202120929599 U CN202120929599 U CN 202120929599U CN 215058917 U CN215058917 U CN 215058917U
- Authority
- CN
- China
- Prior art keywords
- air
- sleeve
- rotary table
- floating
- air supporting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Machine Tool Units (AREA)
Abstract
The application discloses electronic air supporting revolving stage, including air supporting cover and air supporting axle, the air supporting axle sleeve is established in the air supporting cover, and the air supporting cover is fixed to be set up on the base, the stator that is provided with driving motor is sheathe in to the air supporting, the epaxial driving motor's that is provided with the stator corresponds rotor of air supporting, be provided with first insulating ceramics on the air supporting cover, the epaxial second insulating ceramics that is provided with of air supporting, be full of the air film in the cavity space between first insulating ceramics and the second insulating ceramics. The air floating sleeve is provided with the first insulating ceramic, the air floating shaft is provided with the second insulating ceramic, when the air floating shaft rotates, the insulating ceramic between the air floating shaft and the air floating sleeve is ground mutually, the precision of a rotary table structure is guaranteed, meanwhile, the metal insulation between the air floating sleeve and the air floating shaft is guaranteed, the end jump precision of the rotary table can reach 0.08-01 mu m, the shaft jump precision can reach 0.1-0.2 mu m, the bearing capacity can reach 30KG at most, and the bore of a bearing object is 200mm in 100 plus materials.
Description
Technical Field
The application relates to the technical field of air bearing, in particular to an electric air-floating rotary table.
Background
The air floating rotary table is an air rotary table, and stable high-precision rotation is realized by suspending a rotating main shaft in air. The suspension is realized by introducing pressure air into the bearing cavity, the pressure relief gap is very small, the suspension of the rotating shaft is ensured, the whole device has the characteristics of high speed, high precision, no abrasion, no need of lubricating oil, no noise and the like, and simultaneously has excellent speed control performance, so that the device is adopted by more and more high-precision application fields and is used for replacing common mechanical bearings.
The air-floating rotary table in the prior art has various structural forms, for example, in the prior art, the publication number is CN202598045U, the publication date is 12 months and 12 days in 2012, and the invention name is a utility model patent of "an air-floating rotary table structure", and its specific technical scheme is: the utility model discloses an air-flotation turntable structure, which comprises a base, an air-flotation bearing inner ring and an air-flotation bearing outer ring, wherein the air-flotation bearing outer ring is fixed on the base, and the base is provided with a stator of a driving motor; the inner ring of the air bearing is sleeved in the outer ring of the air bearing, and a cavity space between the inner ring of the air bearing and the outer ring of the air bearing is filled with an air film; and the inner ring of the air bearing is provided with a rotor of a driving motor corresponding to the stator. In the air supporting revolving stage structure, because load-bearing platform does the top surface of air supporting bearing inner ring, this bearing area who has increased load-bearing platform to increased the bearing capacity, made the rigidity strongest. In addition, the cavity space between the inner ring and the outer ring of the air bearing is filled with the air film, the air film has certain rigidity and can provide certain anti-tilting moment to support and limit the inner ring of the air bearing, and therefore the rotation precision of the air bearing rotary table is improved.
In the prior art, the precision deviation of the air-floating rotary table is large, and the stator structure is arranged on the base, so that the whole height of the air-floating rotary table is large, the size is large, and the rotary table device has great limitation on the space of a use place.
Disclosure of Invention
To the problems and the defects existing in the prior art, the application provides the electric air-flotation rotary table, which not only ensures the precision of the rotary table structure, but also reduces the whole volume of the rotary table.
In order to achieve the above object, the technical solution of the present application is as follows:
the utility model provides an electronic air supporting revolving stage, includes air supporting cover and air supporting axle, the air supporting axle sleeve is established in the air supporting cover, and the air supporting cover is fixed to be set up on the base, the air supporting is sheathe in and is provided with driving motor's stator, the epaxial driving motor's that is provided with the stator that corresponds of air supporting, be provided with first insulating ceramics on the air supporting cover, the epaxial second insulating ceramics that is provided with of air supporting, be full of the air film in the cavity space between first insulating ceramics and the second insulating ceramics.
Furthermore, the air-bearing shaft comprises a shaft body, an upper disc and a lower disc, the shaft body is sleeved in the air-bearing sleeve, the upper disc is positioned on the upper surface of the air-bearing sleeve, and the lower disc is positioned on the lower surface of the air-bearing sleeve.
Furthermore, air outlet holes are formed in the upper surface, the lower surface, the inner side wall and the first insulating ceramic of the air floating sleeve, air inlet holes are formed in the outer side wall of the air floating sleeve and communicated with the air outlet holes, and air led in by the air inlet holes is led out from the air outlet holes and forms an air film in the cavity space.
Further, the first insulating ceramic is disposed on the upper surface, the lower surface, and the circumference of the inner sidewall of the air bearing sleeve.
Further, the second insulating ceramic is disposed on a lower surface of the upper plate, an upper surface of the lower plate, and an outer circumference of the shaft body.
Further, cavity spaces communicated with each other are formed between the lower surface of the upper disc and the upper surface of the air floating sleeve, between the outer surface of the shaft body and the inner side wall of the air floating sleeve, and between the upper surface of the lower disc and the lower surface of the air floating sleeve, and air films are filled in the cavity spaces.
The beneficial effect of this application:
(1) in this application, be provided with first insulating ceramic on the air supporting cover, the epaxial correspondence of air supporting is provided with second insulating ceramic, and when the air supporting axle rotated, through the insulating ceramic grinding each other between the two, both guaranteed the end of revolving stage structure and jumped the precision with the axle, still guaranteed the metal insulation between air supporting cover and the air supporting axle simultaneously.
(2) In this application, the stator structure setting that corresponds with driving motor is in the inside of air supporting cover, compares in prior art and sets up stator structure on the base of air supporting axle below, and the whole height of revolving stage structure of this application is lower, and consequently the volume of revolving stage is littleer relatively, and the degree of integrating is higher, to in the limited place of usage space, adaptability is better.
(3) In this application, set up the hanging wall top surface of air supporting shaft into the load-bearing platform of revolving stage, greatly increased load-bearing platform's bearing area to the bearing capacity of revolving stage has been increased.
Drawings
The foregoing and following detailed description of the present application will become more apparent when read in conjunction with the following drawings, wherein:
FIG. 1 is a sectional view of a turntable structure according to the present application;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
in the figure:
1. an air floating sleeve; 2. an air bearing shaft; 3. a first insulating ceramic; 4. a second insulating ceramic; 5. a stator, 6 a rotor; 7. a coil; 8. a permanent magnet; 9. a cavity space; 21. a shaft body; 22. hanging the plate; 23. and (5) discharging.
Detailed Description
The technical solutions for achieving the objects of the present invention are further described below by using several specific examples, and it should be noted that the technical solutions claimed in the present application include, but are not limited to, the following examples.
Example 1
The embodiment discloses an electric air-float rotary table, referring to the attached figures 1 and 2 of the specification, the rotary table comprises an air-float sleeve 1, an air-float shaft 2 and a base, wherein the base is provided with a threaded hole, the air-float sleeve 1 is connected with the threaded hole on the base through a screw, the air-float sleeve 1 is fixedly arranged on the base, the air-float shaft 2 is sleeved in the air-float sleeve 1, the inside of the air-float sleeve 1 is provided with a stator 5 of a driving motor, the stator 5 is wound with a plurality of coils 7, the inside of the air-float shaft 2 is provided with a rotor 6 of the driving motor corresponding to the stator, the rotor 6 is provided with a plurality of permanent magnets 8, the air-float sleeve 1 is provided with a first insulating ceramic 3, the air-float shaft 2 is provided with a second insulating ceramic 4, a cavity space 9 between the first insulating ceramic 3 and the second insulating ceramic 4 is filled with an air film, the air film has certain rigidity and can provide a certain anti-tilt moment, the air bearing device is used for supporting and limiting the air bearing shaft 2, the integral bearing capacity of the rotary table is increased, and the rotating effect of stable clearance and friction-free movement is achieved.
After the driving motor is electrified, the stator coil inside the air floatation sleeve generates a rotating magnetic field and acts on the rotor inside the air floatation shaft to form magnetoelectric power rotating torque, the driving rotor rotates, so that the air floatation shaft is driven to rotate integrally in a vertical plane, an object is placed on a bearing platform on the air floatation shaft and is driven to rotate by the air floatation shaft, the air floatation sleeve is provided with first insulating ceramic, the air floatation shaft is provided with second insulating ceramic, a cavity space between the two insulating ceramic is filled with an air film, the air floatation shaft rotates, the insulating ceramic between the two is ground mutually, the rotating precision of the rotary table is ensured, and meanwhile, the metal insulation between the air floatation sleeve and the air floatation shaft is ensured.
In the embodiment, the end jump precision of the turntable is between 0.08 and 01 μm, and the shaft jump precision is between 0.1 and 0.2 μm, so that the overall precision of the turntable is greatly improved compared with the prior art, the bearing capacity of the turntable is greatly improved compared with the prior art, the maximum bearing capacity can reach 30KG, and the bore of a bearing object is between 100 and 200 mm.
This application will set up the inside at the air supporting cover with the stator structure that driving motor corresponds, consequently need not set up the base that is used for holding stator structure in the below of air supporting axle, so the holistic height of revolving stage structure is lower, and the volume is littleer, and the holistic degree of integrating of device is higher, is particularly useful for the limited place of usage space.
Example 2
The embodiment discloses an electric air-floating rotary table, on the basis of embodiment 1, air-floating shaft 2 includes shaft body 21 and upper disc 22 and lower disc 23, shaft body 21 cover is established in air-floating sleeve 1, and upper disc 22 is located the upper surface of air-floating sleeve 1, and as the load-bearing platform of rotary table structure for bear the weight of the object, lower disc 23 is located the lower surface of air-floating sleeve 1.
Furthermore, air outlets are formed in the upper surface, the lower surface, the inner side wall and the first insulating ceramic 3 of the air floating sleeve 1, air inlets are formed in the outer side wall of the air floating sleeve 1 and communicated with the air outlets, and air led in by the air inlets is led out from the air outlets to form air films in the cavity space 9.
Further, the first insulating ceramic 3 is disposed on the upper surface, the lower surface, and the circumference of the inner sidewall of the air bearing sleeve 1.
Further, the second insulating ceramic 4 is provided on the lower surface of the upper disc 22, the upper surface of the lower disc 23, and the outer circumference of the shaft body 21.
Further, a cavity space 9 communicating between the lower surface of the upper disc 22 and the upper surface of the air flotation sleeve 1, between the outer surface of the shaft body 21 and the inner side wall of the air flotation sleeve 1, and between the upper surface of the lower disc 23 and the lower surface of the air flotation sleeve 1 is formed, and an air film is filled in the cavity space 9.
In this embodiment, be provided with the inlet port on the lateral wall of air supporting sleeve, inlet port department is provided with the trachea, and the trachea passes through pressure regulating valve and is connected with the air supply. Inside gas in the air supply enters the air supporting sleeve through the trachea, and is discharged through the venthole on the upper surface, the lower surface, inside wall and the first insulating ceramic of air supporting sleeve, form the air film in getting into the cavity space between first insulating ceramic and the second insulating ceramic, this air film has certain rigidity, and can provide certain anti tilting moment, be used for supporting and limiting the air supporting shaft, the holistic bearing capacity of increase revolving stage, the clearance stability and the frictionless rotation effect of moving have been realized.
In this embodiment, the top surface of the upper disc of the air bearing shaft is provided with the bearing platform of the turntable structure, so that the bearing area of the bearing platform is greatly increased, and the bearing capacity of the turntable is increased.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present application and for simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the scope of the present application.
In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The foregoing is directed to embodiments of the present invention, which are not limited thereto, and any simple modifications and equivalents thereof according to the technical spirit of the present invention may be made within the scope of the present invention.
Claims (6)
1. The utility model provides an electronic air supporting revolving stage, includes air supporting cover (1) and air supporting axle (2), air supporting axle (2) cover is established in air supporting cover (1), and air supporting cover (1) is fixed to be set up on the base, its characterized in that: the air flotation device is characterized in that a stator (5) of a driving motor is arranged on the air flotation sleeve (1), a rotor (6) of the driving motor corresponding to the stator (5) is arranged on the air flotation shaft (2), first insulating ceramics (3) are arranged on the air flotation sleeve (1), second insulating ceramics (4) are arranged on the air flotation shaft (2), and an air film is filled in a cavity space (9) between the first insulating ceramics (3) and the second insulating ceramics (4).
2. An electrically driven air-floating rotary table as claimed in claim 1, wherein: the air-bearing shaft (2) comprises a shaft body (21), an upper disc (22) and a lower disc (23), the shaft body (21) is sleeved in the air-bearing sleeve (1), the upper disc (22) is located on the upper surface of the air-bearing sleeve (1), and the lower disc (23) is located on the lower surface of the air-bearing sleeve (1).
3. An electrically driven air-floating rotary table as claimed in claim 1, wherein: the upper surface, the lower surface, the inner side wall and the first insulating ceramic (3) of the air floating sleeve (1) are provided with air outlets, the outer side wall of the air floating sleeve (1) is provided with air inlets, the air inlets are communicated with the air outlets, and the introduced air of the air inlets is guided out from the air outlets and forms an air film in the cavity space (9).
4. An electrically driven air-floating rotary table as claimed in claim 1, wherein: the first insulating ceramic (3) is arranged on the upper surface, the lower surface and the circumference of the inner side wall of the air floating sleeve (1).
5. An electrically driven air-floating rotary table as claimed in claim 2, wherein: the second insulating ceramic (4) is provided on the lower surface of the upper disc (22), the upper surface of the lower disc (23), and the outer circumference of the shaft body (21).
6. An electrically driven air-floating rotary table as claimed in claim 2, wherein: and a cavity space (9) communicated with the space between the lower surface of the upper disc (22) and the upper surface of the air floating sleeve (1), the space between the outer surface of the shaft body (21) and the inner side wall of the air floating sleeve (1) and the space between the upper surface of the lower disc (23) and the lower surface of the air floating sleeve (1) are formed, and the cavity space (9) is filled with an air film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120929599.2U CN215058917U (en) | 2021-04-30 | 2021-04-30 | Electric air-float rotary table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120929599.2U CN215058917U (en) | 2021-04-30 | 2021-04-30 | Electric air-float rotary table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215058917U true CN215058917U (en) | 2021-12-07 |
Family
ID=79108296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120929599.2U Active CN215058917U (en) | 2021-04-30 | 2021-04-30 | Electric air-float rotary table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215058917U (en) |
-
2021
- 2021-04-30 CN CN202120929599.2U patent/CN215058917U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113266645A (en) | Electric air-float rotary table | |
| CN106655605B (en) | Sandwich magnetic suspending flying wheel battery for electric vehicle and working method | |
| CN100401407C (en) | Data storage device | |
| US11465783B2 (en) | Single-gimbal magnetically suspended control moment gyroscope | |
| JP2005127222A (en) | Magnetic levitating pump | |
| CN113635085B (en) | Precise air-flotation rotary table driven by outer rotor motor | |
| CN210073772U (en) | Exercise device | |
| CN210935422U (en) | Separator is used in laboratory with damping function | |
| CN215058917U (en) | Electric air-float rotary table | |
| CN100352138C (en) | High pressure gas support flying wheel battery | |
| CN201754550U (en) | Permanent magnetism bearing double-stator disc type brushless direct current motor for artificial heart | |
| CN102537046A (en) | Magnetic levitation bearings and magnetic levitation motor | |
| TWI690655B (en) | Flywheel power storage system | |
| CN205663761U (en) | Five degrees of freedom of low -power permanent magnet biased integrate magnetic bearing | |
| CN209479978U (en) | A kind of shaftless electromagnetism rotor of outer rim support | |
| CN208123273U (en) | A kind of bearing and rotor-support-foundation system | |
| CN214663316U (en) | Ultrathin open type air-float rotary table | |
| CN117497479B (en) | Rotary lifting composite air bearing table for bearing wafer | |
| CN100359783C (en) | Micro pressure gas support flying wheel battery | |
| CN112134429B (en) | Integrated PCB winding disc type motor system | |
| CN110410341A (en) | A kind of magnetic suspension blower | |
| CN113864337A (en) | Homopolar gas-magnetic double-field dynamic pressure radial hybrid bearing | |
| CN111682669B (en) | Ultra-small damping rotating device based on air floatation principle | |
| CN202197155U (en) | Speed regulation permanent magnet synchronous motor rotor for refrigeration frequency conversion compressor | |
| CN218018407U (en) | Motion platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |