CN116476017A - Air-floating rotary table - Google Patents
Air-floating rotary table Download PDFInfo
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- CN116476017A CN116476017A CN202310456777.8A CN202310456777A CN116476017A CN 116476017 A CN116476017 A CN 116476017A CN 202310456777 A CN202310456777 A CN 202310456777A CN 116476017 A CN116476017 A CN 116476017A
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- ring body
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- air passage
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- 238000007667 floating Methods 0.000 title description 8
- 230000008093 supporting effect Effects 0.000 claims abstract description 8
- 210000002421 cell wall Anatomy 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 239000000498 cooling water Substances 0.000 claims description 17
- 239000003292 glue Substances 0.000 claims description 16
- 230000000903 blocking effect Effects 0.000 claims description 13
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 238000001816 cooling Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 11
- 230000002411 adverse Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/14—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting the bench top
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
The utility model relates to a work piece pivoted field especially relates to an air supporting revolving stage, and it includes the base, it is connected with the carousel subassembly to rotate on the base, be equipped with the subassembly annular on the carousel subassembly, be connected with on the base and stretch into pneumatic bearing in the subassembly annular, pneumatic bearing with leave the inflation clearance between the cell wall of subassembly annular, pneumatic bearing is connected with the inflation structure, set up in the pneumatic bearing with the inflation structure and the air flue group of inflation clearance intercommunication. The application has the effect of being convenient for promote carousel rotation precision.
Description
Technical Field
The application relates to the field of workpiece rotation, in particular to an air floatation rotary table.
Background
Work turntable is currently often used in rotating a work piece.
A workpiece turntable in the prior art comprises a base, wherein a vertical rod is connected to the base, a rotating bearing is connected to the top end of the vertical rod, a turntable is connected to the rotating bearing, and a driving source is connected to the turntable in a transmission manner; in the implementation, the workpiece is placed on the workpiece turntable, and then the rotation of the workpiece can be realized by driving the rotating disc through the driving source.
In the course of implementing the present application, it has been found that the above technique has at least the following problems: the carousel itself dead weight is higher to lead to its frictional resistance with the antifriction bearing between also great, so drive the commentaries on classics source at the in-process of driving the carousel, need overcome the frictional resistance between carousel and the antifriction bearing, thereby be difficult to make the carousel reach preset rotational speed, so reduce the rotational accuracy of carousel.
Disclosure of Invention
In order to facilitate the improvement of the rotation precision of the turntable, the application provides an air floatation turntable.
The application provides an air supporting revolving stage adopts following technical scheme:
the utility model provides an air supporting revolving stage, includes the base, rotate on the base and be connected with the carousel subassembly, be equipped with the subassembly annular on the carousel subassembly, be connected with on the base and stretch into pneumatic bearing in the subassembly annular, pneumatic bearing with leave between the cell wall of subassembly annular and aerify the clearance, pneumatic bearing is connected with the inflation structure, set up in the pneumatic bearing with the inflation structure with aerify the air flue group of clearance intercommunication.
Through adopting above-mentioned technical scheme, put the carousel subassembly with the work piece on, then start to aerify the air of structure to the air of the air flue group injection preset pressure in the start-up bearing, in the air flows to the inflation clearance from the air flue group, thereby form the high-pressure air film in the inflation clearance, the high-pressure air film can extrude the carousel subassembly, thereby play the effect of propping up and spacing carousel subassembly, the carousel subassembly is in the state of floating this moment, the gravity of carousel subassembly self can not cause its and base between form frictional resistance, so when rotating the carousel subassembly, can stop frictional resistance to the influence of carousel subassembly, thereby be convenient for promote the rotation precision of carousel.
In a specific implementation manner, the base is connected with a driving piece, and the driving piece is electrically connected with a preset control structure; the rotating member is connected with a rotating rod, and the rotating rod is connected with the turntable assembly.
Through adopting above-mentioned technical scheme, be convenient for control the piece of driving through predetermineeing control structure to make the piece of driving through dwang drive the carousel subassembly, the rotational speed machine angle etc. of carousel subassembly so be convenient for control, thereby be convenient for control the work piece rotation of placing on the carousel subassembly to predetermineeing the position.
In a specific implementation manner, the rotary table assembly comprises a top ring body connected to the rotary rod, the top ring body is connected with a rotary table, the top ring body is also connected with a longitudinal ring body, the longitudinal ring body is connected with a bottom ring body, and the assembly ring groove is formed among the top ring body, the longitudinal ring body and the bottom ring body; the inflation gap comprises a top gap arranged between the pneumatic bearing and the top ring body, a longitudinal gap arranged between the pneumatic bearing and the longitudinal ring body, and a bottom gap arranged between the pneumatic bearing and the bottom ring body; the air passage group is in communication with the top gap, the longitudinal gap, and the bottom gap.
Through adopting above-mentioned technical scheme, the air film that fills the air formation through the air flue group in to the top clearance is convenient for prop the top ring body, simultaneously, the air film that fills the air formation through the air flue group in to the longitudinal gap is convenient for prop the longitudinal ring body, simultaneously, the air film that fills the air formation through the air flue group in to the bottom clearance is convenient for prop the bottom ring body, so be convenient for prop up the three inner wall of subassembly annular through the air film, so be convenient for realize that pneumatic bearing does not contact with the carousel subassembly, still prop up and fix a carousel subassembly, so be convenient for stop producing frictional force between carousel subassembly and the pneumatic bearing, so, when driving the carousel subassembly through the dwang drive, need not overcome frictional force, the rotation speed and the rotation precision when so being convenient for promote and drive the carousel subassembly.
In a specific embodiment, the set of airways includes a transverse airway in communication with the inflatable structure and a longitudinal airway in communication with the transverse airway; the lateral air passages communicate with the longitudinal gap, and the longitudinal air passages communicate with the top gap and the bottom gap.
By adopting the technical scheme, when the top gap, the longitudinal gap and the bottom gap are required to be inflated, the inflation structure is started, and air inflated by the inflation structure is firstly inflated into the transverse air passage and flows into the longitudinal air passage communicated with the transverse air passage from the transverse air passage; further, the air in the transverse air passage is further filled into the longitudinal gap, and the air in the longitudinal air passage further flows into the top gap and the bottom gap, so that the air in the top gap, the longitudinal gap and the bottom gap filled with the air can form an air film for supporting the turntable assembly, and the turntable assembly can be prevented from transmitting friction with the pneumatic bearing in the rotating process.
In a specific possible embodiment, the top gap, the longitudinal gap and the bottom gap have a thickness in the range of 4.5 μm to 5.5 μm.
By adopting the technical scheme, the thickness ranges of the top gap, the longitudinal gap and the bottom gap are controlled within 4.5-5.5 mu m, so that the air film can form a good supporting effect on the turntable assembly.
In a specific implementation mode, a throttling head is connected to the air outlet of the air passage group, an orifice used for communicating the air passage group with the inflation gap is arranged in the throttling head, and the aperture of the orifice is smaller than that of the air passage group.
Through adopting above-mentioned technical scheme, because the aperture of the orifice on the throttle head is less than the aperture of air flue group, so the gas flow that flows into through the orifice in the gas clearance can diminish for the flow of gas in the air flue group, so be convenient for form the air film in the gas clearance to be convenient for prop up the carousel subassembly through the air film, thereby make carousel group price be in the state of floating.
In a specific implementation manner, the base is provided with a cooling water jacket surrounding the driving member, the cooling water jacket is provided with a water inlet head and a water outlet head, and the water inlet head is connected with a preset water supply structure.
Through adopting above-mentioned technical scheme, pour into cooling water into the water intaking head through water supply structure to in making the cooling time get into cooling jacket through the water intaking head, then go out the cooling jacket through the play water outlet, the cooling water is at the in-process of flowing through cooling jacket, and cooling jacket can carry out the heat exchange with driving the commentaries on classics piece, thereby is convenient for carry out the physics cooling to driving the commentaries on classics piece that is in operating condition.
In a specific implementation mode, the rotating rod is provided with a connecting ring body which is used for being connected with the top ring body and the rotating disc, the connecting ring body is coaxially provided with an annular groove, the bottom wall of the annular groove is coaxially connected with a glue blocking ring body, and a glue injection groove for glue injection is formed between the glue blocking ring body and the connecting ring body.
Through adopting above-mentioned technical scheme, install the fender gum ring body in the ring channel after, further pour into glue into the footbath between fender gum ring body and the connector ring body, so be convenient for prevent that the backstop gum ring body is unstable owing to the installation to take place the off-axis phenomenon, and then be convenient for prevent to cause adverse effect to the rotation stationarity of carousel subassembly.
In a specific implementation mode, a limiting groove for workpiece embedding is formed between the rubber blocking ring body and the rotating rod, and a positioning groove for workpiece embedding is formed in the rotating disc.
Through adopting above-mentioned technical scheme, with workpiece embedding in corresponding spacing groove and the constant head tank, be convenient for prevent that the carousel from driving workpiece pivoted simultaneously work piece and carousel relative displacement, so, be convenient for promote carousel and drive workpiece pivoted stability.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the rotating precision of the turntable is convenient to be improved;
2. the rotary stability of the turntable assembly is prevented from being adversely affected;
3. the stability that the lifting turntable drove the work piece pivoted is convenient for.
Drawings
Fig. 1 is an overall cross-sectional view of an air bearing turret in an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a base, a driving component and a turntable component according to an embodiment of the present application.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Fig. 4 is a schematic structural diagram of the connection relationship among the top ring, the turntable, the longitudinal ring, and the bottom ring in the embodiment of the present application.
Fig. 5 is a schematic structural diagram of a connection relationship between a base and a housing in an embodiment of the present application.
Fig. 6 is a schematic structural view of a throttle head in an embodiment of the present application.
Fig. 7 is a top view of a rotor in an embodiment of the present application.
Fig. 8 is a schematic diagram of a structure used to embody a cooling assembly in an embodiment of the present application.
Reference numerals illustrate: 1. a base; 2. a drive-rotation assembly; 21. a driving member; 22. a rotating lever; 23. a rotating block; 24. a connecting ring body; 241. an annular groove; 25. a rubber blocking ring body; 251. a limit groove; 26. a glue injection groove; 3. a turntable assembly; 31. a component ring groove; 32. a top ring body; 33. a turntable; 331. a positioning groove; 34. a longitudinal ring body; 35. a bottom ring; 4. a housing; 41. an air intake passage; 5. a pneumatic bearing; 51. an airway group; 511. a first lateral airway; 512. a longitudinal airway; 513. a second lateral airway; 52. a throttle head; 521. an orifice portion; 522. a throttle hole II; 6. an inflation gap; 61. a top gap; 62. a longitudinal gap; 63. a bottom gap; 7. an inflatable structure; 71. an air inlet head; 8. a cooling assembly; 81. a cooling water jacket; 82. a water inlet head; 83. and a water outlet head.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-8.
The embodiment of the application discloses an air floatation rotary table. Referring to fig. 1, the air-float turntable comprises a base 1, wherein a rotation driving assembly 2 is connected to the base 1, a turntable assembly 3 is connected to the rotation driving assembly 2, the turntable assembly 3 is used for placing and limiting a workpiece, and the rotation driving assembly 2 is used for driving a box turntable assembly 3 to rotate; the base 1 is connected with a shell 4 around the driving component 2, the shell 4 is connected with a pneumatic bearing 5, the turntable component 3 is provided with a component ring groove 31 for the pneumatic bearing 5 to extend into, and an inflation gap 6 is reserved between the pneumatic bearing 5 and the inner wall of the component ring groove 31; the pneumatic bearing 5 is connected with an inflation structure 7, and the inflation structure 7 is used for blowing air into the inflation gap 6 through the pneumatic bearing 5, so that an air film for floating the turntable assembly 3 is formed in the air gap; the base 1 is further provided with a cooling assembly 8 surrounding the driving assembly 2, and the cooling assembly 8 is used for cooling the driving assembly 2 in a working state.
In the implementation, firstly, a workpiece is placed and limited on the turntable assembly 3, then the inflation structure 7 is started to charge air into the inflation gap 6 through the starting bearing, so that an air film is formed in the inflation gap 6, and the turntable assembly 3 can be supported after the air film is formed, so that the turntable assembly is in a floating state relative to the pneumatic bearing 5, and the pallet assembly is not contacted with the pneumatic bearing 5; when the driving component 2 drives the tray component, friction can not occur between the tray component and the pneumatic bearing 5, so that the possibility that friction force blocks the rotation of the tray component is eliminated, and the driving component 2 avoids the friction obstruction when driving the tray component, thereby facilitating the improvement of the speed and the precision of the rotation of the tray component; in addition, the cooling component 8 can prevent the phenomenon of overheat and downtime of the driving component 2 in working engineering.
Referring to fig. 2, the driving assembly 2 includes a driving member 21 connected to a top wall of the base 1 and disposed coaxially with the base 1, the driving member 21 being electrically connected to a predetermined control structure (not shown), and in one embodiment, the control structure includes a computer electrically connected to the driving member 21 for controlling a rotation speed, a rotation angle, etc. of the driving member 21; in this embodiment, the driving member 21 is specifically a motor connected to the base 1, and an output shaft of the motor is disposed along a vertical direction, and in other embodiments, the driving member 21 may be a rotary cylinder or the like; the top end of the output shaft of the driving piece 21 is coaxially connected with a rotating rod 22, a rotating block 23 is coaxially and integrally formed at the top end of the rotating rod 22, and the rotating block 23 is in a shape of a cake; the turntable assembly 3 is coaxially coupled to the rotating block 23.
In practice, after the workpiece is placed on the turntable assembly 3, when the turntable assembly 3 needs to be driven, the rotating speed and the rotating angle of the driving assembly 2 are controlled through a preset control structure, so that the turntable assembly 3 reaches the corresponding rotating speed or rotates by a preset angle, and the working procedures such as rotation detection or rotation machining of the workpiece are conveniently realized.
In one embodiment, referring to fig. 2 and 3, the driving assembly 2 further includes a connection ring 24 circumferentially connected to the outer edge of the rotating block 23, and the connection ring 24 is coaxially connected to the turntable assembly 3; an annular groove 241 is coaxially arranged on the top wall of the connecting ring body 24, a rubber blocking ring body 25 is coaxially fixed on the bottom wall of the annular groove 241, and the outer diameter of the rubber blocking ring body 25 is slightly smaller than the diameter of the annular groove 241, so that a rubber injection groove 26 positioned on the bottom wall of the annular groove 241 can be formed between the outer wall of the rubber blocking ring body 25 and the side wall of the annular groove 241, and the rubber injection groove 26 is annular and is used for injecting glue.
In practice, the rubber blocking ring body 25 is generally fixed on the connecting ring body 24 through a preset bolt, in the process of rotating the workpiece at high speed and high precision, the centrifugal force of the rubber blocking ring body 25 is strong, the phenomenon of off-axis easily occurs, if the rubber blocking ring body 25 occurs, the gravity center of the driving component 2 is not on the center of the rubber blocking ring body, the phenomenon of off-axis easily occurs when the rotating rod 22 in the driving component 2 rotates, so that the rotating rod 22 slightly shakes in the rotating process, and the turntable component 3 is driven to synchronously slightly shake, so that adverse effects are caused on the high-precision rotating process of the workpiece.
In the implementation, in order to facilitate preventing the offset phenomenon of the stop rubber ring body 25 from occurring, so as to prevent adverse effects on the high-precision rotation process of the workpiece, in this embodiment, before driving the rotating disc assembly 3, a preset glue is injected into the glue injection groove 26, after the glue is dried, the dried glue can be used as an intermediary to connect the connecting ring body 24 with the stop rubber ring body 25; therefore, the glue can fasten the stop glue ring body 25 to the adhesive joint ring body 24, so that the stop glue ring body 25 is prevented from being eccentric, and adverse effects on the high-precision rotation process of the workpiece are prevented.
Referring to fig. 4, the turntable assembly 3 includes a top ring body 32 coaxially connected to the outer edge of the connecting ring body 24, a turntable 33 is coaxially connected to the top wall of the top ring body 32, and the turntable 33 is used for placing and positioning a workpiece; one end of the bottom wall of the top ring body 32, which is close to the rotating rod 22, is coaxially connected with the longitudinal ring body 34; a bottom ring body 35 is coaxially fixed at one end of the bottom wall of the longitudinal ring body 34 far away from the rotating rod 22; the top ring 32, the longitudinal ring 34 and the bottom ring 35 are all disposed around the rotating rod 22 and are all coaxial with the rotating rod 22; the bottom wall of the top ring 32, the outer wall of the longitudinal ring 34, and the top wall of the bottom ring 35 are connected in sequence and together form a component ring groove 31 having a "U" shaped cross section.
In practice, after the workpiece is placed on the turntable 33 and positioned, the rotation member 21 is controlled by a preset control structure to rotate the rotation rod 22, and the rotation rod 22 drives the connecting ring 24, the top ring 32 connected with the connecting ring 24, the turntable 33 connected with the top ring 32, the longitudinal ring 34 and the bottom ring 35 connected with the longitudinal ring 34 to rotate synchronously.
Referring to fig. 5, the housing 4 connected to the base 1 is disposed around the rotation lever 22 and is coaxial with the rotation lever 22; the pneumatic bearing 5 is fixedly connected to the inner wall of the shell 4, the pneumatic bearing 5 is annular, and the pneumatic bearing 5 extends into the assembly annular groove 31; specifically, the top wall of the pneumatic bearing 5 is disposed close to the bottom wall of the top ring 32 and parallel to the bottom wall of the top ring 32; the inner annular wall of the pneumatic bearing 5 is arranged close to the outer wall of the longitudinal ring 34 and is coaxial with the outer wall of the longitudinal ring 34; the bottom wall of the pneumatic bearing 5 is disposed adjacent to the top wall of the bottom ring 35 and parallel to the top wall of the bottom ring 35.
An air-filled gap 6 is left between the air-filled bearing 5 and the groove wall of the assembly groove 31, specifically, the air-filled gap 6 comprises a top gap 61 with a thickness of 4.5-5.5 μm left between the top wall of the air-filled bearing 5 and the bottom wall of the top ring body 32, a longitudinal gap 62 with a thickness of 4.5-5.5 μm left between the inner annular wall of the air-filled bearing 5 and the outer wall of the longitudinal ring body 34, and a bottom gap 63 with a thickness of 4.5-5.5 μm left between the bottom wall of the air-filled bearing 5 and the top wall of the bottom ring body 35. In the present embodiment, the thicknesses of the top gap 61, the longitudinal gap 62, and the bottom gap 63 are preferably 5 μm in a unified manner.
The housing 4 is provided with an air inlet channel 41, and the air charging structure 7 comprises an air inlet head 71 connected to the housing 4 and communicated with the air inlet channel 41, and an inflator (not shown in the figure) is connected to one end of the air inlet head 71 away from the air inlet channel 41.
The pneumatic bearing 5 is internally provided with an air passage group 51, the air passage group 51 comprises transverse air passages, each transverse air passage comprises a first transverse air passage 511 communicated with the air inlet passage 41, the first transverse air passages 511 are arranged along the radial direction of the pneumatic bearing 5, the pneumatic bearing 5 is internally provided with a plurality of longitudinal air passages 512 parallel to the axial direction of the air passage group, the longitudinal air passages 512 are communicated with the first transverse air passages 511, the longitudinal air passages 512 are also commonly communicated with a second transverse air passage 513 arranged in the starting bearing, and the second transverse air passages 513 are arranged in parallel with the first transverse air passages 511 and are positioned above the first transverse air passages 511. It should be noted that, the air outlets of the first transverse air passage 511 and the second transverse air passage 513 are communicated with the longitudinal gap 62, the top air outlet of each longitudinal air passage 512 is communicated with the top gap 61, and the bottom air outlet of each longitudinal air passage 512 is communicated with the bottom gap 63.
In practice, by activating the inflator, the inflator may be caused to blow air into the longitudinal gap 62 through the air intake head 71, the air intake passage 41, the first lateral air passage 511, while also blowing air into the top gap 61 and the bottom gap 63 through the longitudinal air passage 512 communicating with the first lateral air passage 511, while also blowing air into the longitudinal gap 62 through the second lateral air passage 513; this facilitates the pressing of the top ring 32, the longitudinal ring 34 and the bottom ring 35, respectively, by the blown air, thereby holding the turntable assembly 3 and putting the turntable assembly 3 in a floating state.
In one embodiment, in order to facilitate forming an air film for stably supporting the turntable assembly 3 in the top gap 61, the longitudinal gap 62, and the bottom gap 63, a throttle head 52 is fixed in the air outlet of each of the first lateral air passage 511, the second lateral air passage 513, and each of the longitudinal air passages 512, the throttle head 52 is cylindrical in shape as a whole, and the throttle head 52 is coaxially disposed with the corresponding air outlet.
Referring to fig. 5 and 6, an orifice communicating with the corresponding first lateral air passage 511 or second lateral air passage 513 or longitudinal air passage 512 is coaxially provided in the orifice head 52, and the orifice includes an orifice first portion 521 communicating with the corresponding first lateral air passage 511 or second lateral air passage 513 or longitudinal air passage 512, and an orifice second portion 522 communicating with the orifice first portion 521 and the corresponding top gap 61 or longitudinal gap 62 or bottom gap 63; the aperture of the first orifice portion 521 is smaller than the aperture of the corresponding first lateral air passage 511 or second lateral air passage 513 or longitudinal air passage 512, and the aperture of the second orifice portion 522 is smaller than the aperture of the corresponding first orifice portion 521; this facilitates reducing the air flow rate of air from the air passage group 51 into the inflation gap 6, thereby facilitating the formation of an air film in the corresponding inflation gap 6 for supporting the turntable assembly 3.
In practice, air of 0.4MPa is synchronously blown into the first lateral air duct 511, the second lateral air duct 513 and the plurality of longitudinal air ducts 512 by the inflator, and the air flow is reduced to a preset value by the throttle heads 52 in the first lateral air duct 511, the second lateral air duct 513 and the plurality of longitudinal air ducts 512, so that the air entering the corresponding top gap 61, the corresponding longitudinal gap 62 and the corresponding bottom gap 63 can form a corresponding air film. The air film in the top gap 61 is used for pressing the top ring 32 upwards, the air film in the longitudinal gap 62 is used for pressing the longitudinal ring 34 along the direction facing the central axis of the longitudinal ring 34, the air film in the bottom gap 63 is used for pressing the bottom ring 35 downwards, so that the air films in the top gap 61, the longitudinal gap 62 and the bottom gap 63 can support the turntable assembly 3, the turntable assembly 3 is completely separated from contact with the pneumatic bearing 5 or the shell 4, physical friction between the turntable assembly 3 and other components is prevented, the influence of the physical friction on rotation of the turntable assembly 3 is prevented, and the rotation speed and the rotation precision of the turntable assembly 3 are improved.
In one embodiment, referring to fig. 7, in order to perform the positioning function of the turntable 33 on the workpiece, a positioning groove 331 is formed on the top wall of the turntable 33 along the radial direction of the turntable 33, and the positioning groove 331 is used for embedding the workpiece; it should be noted that, the inner ring of the above-mentioned glue blocking ring body 25 and the bottom wall of the rotating block 23 form a limit groove 251 for embedding the workpiece together.
In practice, the workpiece is synchronously embedded into the limit groove 251 and the locating groove 331, so that the limit groove 251 and the locating groove 331 synchronously play a role in locating the workpiece, and the locating effect of the turntable 33 on the workpiece is conveniently improved.
Referring to fig. 8, the cooling assembly 8 includes a cooling water jacket 81 fixed on a top wall of the base 1, the cooling water jacket 81 is disposed around the driving member 21, a water inlet head 82 and a water outlet head 83 are disposed on the cooling water jacket 81, wherein the water inlet head 82 is connected with a preset water supply structure (not shown in the figure), the water supply structure is used for injecting cooling water into the cooling water jacket, and the water outlet head 83 is connected with a preset water outlet pipeline.
In practice, the driving member 21 will gradually generate heat during rotation, and if the driving member 21 works for a long time, excessive heat will be generated, and the excessive heat may cause difficulty in driving the rotating disc assembly 3 with high precision and even downtime. In order to facilitate the prevention of excessive heating of the driving member 21, after the driving member 21 is started, a water supply structure is started to inject cooling water into the cooling water tank, and the cooling water can enable the cooling water jacket 81 to be in a temperature bottoming state, so that the heat exchange with the driving member 21 in a working state is facilitated, and the function of preventing the driving member 21 from being excessively high in temperature can be realized; the cooling water after heat exchange further flows out through the water outlet head 83 and the water outlet pipeline.
The implementation principle of the air floatation turntable in the embodiment of the application is as follows: the air film is generated in the inflation gap 6, and the air film is utilized to support the turntable assembly 3, so that the turntable assembly 3 is not in physical contact with other parts to stop physical friction, and the turntable assembly 3 is in a floating state, and therefore, the rotation speed of the turntable assembly 3 can be greatly improved when the turntable assembly 3 is driven by the driving assembly 2, and the rotation precision of the turntable assembly 3 is further improved; in the process of improving the rotation precision of the turntable assembly 3, lubricants such as lubricating oil are not used for improving the rotation precision of the turntable assembly 3, so that economic benefits are improved, zero abrasion of the turntable assembly 3 is realized, in addition, noise caused by physical friction can not be generated when the turntable assembly 3 rotates, and the noise reduction effect is obvious; the air floatation turntable disclosed by the embodiment of the application has the characteristic of high-precision rotation, so that the air floatation turntable can be widely applied to high-precision processing and measuring equipment.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (9)
1. An air supporting revolving stage, its characterized in that: including base (1), it is connected with carousel subassembly (3) to rotate on base (1), be equipped with subassembly annular (31) on carousel subassembly (3), be connected with on base (1) stretch into pneumatic bearing (5) in subassembly annular (31), pneumatic bearing (5) with leave between the cell wall of subassembly annular (31) and aerify clearance (6), pneumatic bearing (5) are connected with inflatable structure (7), set up in pneumatic bearing (5) with inflatable structure (7) and air flue group (51) of inflatable clearance (6) intercommunication.
2. The air bearing turret of claim 1, wherein: the base (1) is connected with a driving piece (21), and the driving piece (21) is electrically connected with a preset control structure; the rotating member (21) is connected with a rotating rod (22), and the rotating rod (22) is connected with the turntable assembly (3).
3. The air bearing turret of claim 2, wherein: the rotary table assembly (3) comprises a top ring body (32) connected to the rotary rod (22), a rotary table (33) is connected to the top ring body (32), a longitudinal ring body (34) is further connected to the top ring body (32), a bottom ring body (35) is connected to the longitudinal ring body (34), and an assembly ring groove (31) is formed among the top ring body (32), the longitudinal ring body (34) and the bottom ring body (35); the inflation gap (6) comprises a top gap (61) arranged between the pneumatic bearing (5) and the top ring body (32), a longitudinal gap (62) arranged between the pneumatic bearing (5) and the longitudinal ring body (34), and a bottom gap (63) arranged between the pneumatic bearing (5) and the bottom ring body (35); the air channel group (51) communicates with the top gap (61), the longitudinal gap (62) and the bottom gap (63).
4. An air bearing turret according to claim 3, wherein: the air passage group (51) comprises a transverse air passage communicated with the inflatable structure (7) and a longitudinal air passage (512) communicated with the transverse air passage; the lateral air passage communicates with the longitudinal gap (62), and the longitudinal air passage (512) communicates with the top gap (61) and the bottom gap (63).
5. The air bearing turret of claim 4 wherein: the top gap (61), the longitudinal gap (62) and the bottom gap (63) have a thickness in the range of 4.5 μm-5.5 μm.
6. The air bearing turret of claim 1, wherein: the air outlet of the air passage group (51) is connected with a throttling head (52), an orifice used for communicating the air passage group (51) with the inflation gap (6) is arranged in the throttling head (52), and the aperture of the orifice is smaller than that of the air passage group (51).
7. The air bearing turret of claim 2, wherein: the base (1) is provided with a cooling water jacket (81) surrounding the driving piece (21), the cooling water jacket (81) is provided with a water inlet head (82) and a water outlet head (83), and the water inlet head (82) is connected with a preset water supply structure.
8. An air bearing turret according to claim 3, wherein: be equipped with on dwang (22) be used for with connect ring body (24) that top ring body (32) and carousel (33) are connected, ring channel (241) have been seted up to connect ring body (24) coaxial, coaxial coupling has on the diapire of ring channel (241) keeps off gluey ring body (25), keep off gluey ring body (25) with be formed with between connecting ring body (24) and supply glue injection groove (26).
9. The air bearing turret of claim 8, wherein: a limiting groove (251) for workpiece embedding is formed between the rubber blocking ring body (25) and the rotating rod (22), and a positioning groove (331) for workpiece embedding is formed in the rotary disc (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310456777.8A CN116476017A (en) | 2023-04-25 | 2023-04-25 | Air-floating rotary table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310456777.8A CN116476017A (en) | 2023-04-25 | 2023-04-25 | Air-floating rotary table |
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| Publication Number | Publication Date |
|---|---|
| CN116476017A true CN116476017A (en) | 2023-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310456777.8A Pending CN116476017A (en) | 2023-04-25 | 2023-04-25 | Air-floating rotary table |
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| Country | Link |
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| CN (1) | CN116476017A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117212338A (en) * | 2023-11-07 | 2023-12-12 | 无锡星微科技有限公司杭州分公司 | High-bearing precision air-floatation turntable |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542241A (en) * | 2013-09-25 | 2014-01-29 | 广州市昊志机电股份有限公司 | Air flotation type rotary table |
| CN211778556U (en) * | 2019-11-25 | 2020-10-27 | 江苏工大金凯高端装备制造有限公司 | T-shaped small-hole throttling air-flotation rotary table |
| WO2023029201A1 (en) * | 2021-08-31 | 2023-03-09 | 清华大学 | Rotating air bearing assembly and magnetic fluid seal comprising same |
-
2023
- 2023-04-25 CN CN202310456777.8A patent/CN116476017A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542241A (en) * | 2013-09-25 | 2014-01-29 | 广州市昊志机电股份有限公司 | Air flotation type rotary table |
| CN211778556U (en) * | 2019-11-25 | 2020-10-27 | 江苏工大金凯高端装备制造有限公司 | T-shaped small-hole throttling air-flotation rotary table |
| WO2023029201A1 (en) * | 2021-08-31 | 2023-03-09 | 清华大学 | Rotating air bearing assembly and magnetic fluid seal comprising same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117212338A (en) * | 2023-11-07 | 2023-12-12 | 无锡星微科技有限公司杭州分公司 | High-bearing precision air-floatation turntable |
| CN117212338B (en) * | 2023-11-07 | 2024-02-06 | 无锡星微科技有限公司杭州分公司 | High-bearing precision air-floatation turntable |
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