CN109707936B - Revolving joint is inhaled with vacuum of self-purification to revolving stage - Google Patents
Revolving joint is inhaled with vacuum of self-purification to revolving stage Download PDFInfo
- Publication number
- CN109707936B CN109707936B CN201811433609.2A CN201811433609A CN109707936B CN 109707936 B CN109707936 B CN 109707936B CN 201811433609 A CN201811433609 A CN 201811433609A CN 109707936 B CN109707936 B CN 109707936B
- Authority
- CN
- China
- Prior art keywords
- shaft
- sealing
- vacuum suction
- self
- dynamic
- 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
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
Abstract
The invention discloses a self-purification vacuum suction rotary joint for a rotary table, which comprises a dynamic rotary part and a static part, wherein the dynamic rotary part is provided with a vacuum suction path; the static part is equipped with the gas circuit of purifying, is equipped with the clearance between dynamic revolving part and the static part, and the gas circuit of purifying communicates with the clearance, and the gas circuit of purifying is ventilated and is purified the clearance. The invention adds the purification gas circuit, when the vacuum suction works, the purification gas circuit is in a closed state, when the vacuum suction is finished, the purification gas circuit is opened, and impurities which possibly enter a small gap among the cavity in the rotary table, the sealing shaft and the sealing sleeve are blown out, so that the performance and the service life of the whole rotary joint structure are ensured; the labyrinth structure seal reduces the risk of entering impurities; the small gap between the sealing shaft and the sealing sleeve is sealed, and the high-rotation-speed rotation can be realized.
Description
Technical Field
The invention relates to the technical field of vacuum suction rotary joints, in particular to a self-purification vacuum suction rotary joint for a rotary table.
Background
Use the revolving stage processing on the existing market, adopt the vacuum to inhale the operating mode of tightly inhaling the work piece a lot, inhale the rotary joint demand also a lot to the vacuum that plays this function like this, but the rotary joint is inhaled in current vacuum does not have self-purification's function, and when the rotary joint during operation is inhaled in vacuum, the inside cavity of revolving stage can have impurity, influences the performance and the life-span of whole rotary joint structure.
Disclosure of Invention
In order to overcome the defects in the prior art, one of the purposes of the invention is to provide a vacuum suction rotary joint which can solve the problem that impurities influence the performance and the service life of the device during the operation of the existing vacuum suction.
One of the purposes of the invention is realized by adopting the following technical scheme:
a self-purification vacuum suction rotary joint for a rotary table comprises a dynamic rotary part and a static part, wherein the dynamic rotary part is provided with a vacuum suction path, and the vacuum suction path tightly sucks a workpiece when the dynamic rotary part rotates at a high speed; the static part is provided with a purification gas path, a gap is arranged between the dynamic rotary part and the static part, the purification gas path is communicated with the gap, and the purification gas path is used for ventilating to purify the gap;
the dynamic rotating part comprises a sealing shaft and a gland, the gland is fixedly arranged at the lower end of the sealing shaft, and the vacuum suction path is positioned in the middle of the sealing shaft;
the dynamic rotating part comprises a sealing shaft and a gland, the gland is fixedly arranged at the lower end of the sealing shaft, and the vacuum suction path is positioned in the middle of the sealing shaft;
the static component comprises a sealing sleeve and an air guide shaft, the sealing sleeve is sleeved on the sealing shaft, a gap is reserved between the sealing sleeve and the sealing shaft, the air guide shaft is fixedly installed outside the sealing sleeve, the purification air path is located on the air guide shaft and communicated with the gap, and the purification air path is used for ventilating and purifying the gap.
Furthermore, the static part also comprises two bearings, the two bearings are arranged at the two ends of the sealing sleeve, the sealing shaft is in clearance fit with the sealing sleeve, and the bearings are arranged at the two ends of the sealing sleeve, so that the sealing shaft is ensured to smoothly rotate at a high speed.
Further, the static part also comprises a labyrinth ring, and the periphery of the gland is matched with the labyrinth ring to form a labyrinth structure so as to reduce the risk of entering impurities.
Furthermore, the static part also comprises a fixing screw, a threaded hole is formed in the gland, and the gland is fixedly installed at the bottom of the sealing shaft through the fixing screw.
Furthermore, the static part also comprises an O-shaped ring, and the air guide shaft is fixedly connected with the sealing sleeve through the O-shaped ring.
Further, the bearing is a deep groove ball bearing.
Further, the dynamic rotating part also comprises a rotating disc, and the sealing shaft is fixedly connected with the rotating disc.
Further, the dynamic rotating part also comprises a rotating shaft, and the rotating disc is fixedly connected with the rotating shaft.
Compared with the prior art, the invention has the beneficial effects that: the invention adds the purification gas circuit, when the vacuum suction works, the purification gas circuit is in a closed state, when the vacuum suction is finished, the purification gas circuit is opened, and impurities which possibly enter a small gap among the cavity in the rotary table, the sealing shaft and the sealing sleeve are blown out, so that the performance and the service life of the whole rotary joint structure are ensured; the labyrinth structure seal reduces the risk of entering impurities; the small gap between the sealing shaft and the sealing sleeve is sealed, and the high-rotation-speed rotation can be realized.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic view of a preferred embodiment of a self-cleaning vacuum rotary union for a turntable according to the present invention;
fig. 2 is an enlarged view of a point a in fig. 1.
In the figure: 11. a seal shaft; 12. a rotary disk; 13. a rotating shaft; 14. a gland; 15. a first set screw; 16. a second set screw; 17. a third set screw; 21. sealing sleeves; 22. an air guide shaft; 23. a labyrinth ring; 24. a deep groove ball bearing; 25. an O-shaped ring; 30. purifying the gas circuit; 40. a vacuum gas suction path; 50. a vacuum suction jig; 60. a small gap.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-2, a self-cleaning vacuum suction rotary joint for a turntable comprises a dynamic rotary part and a static part, wherein the dynamic rotary part is provided with a vacuum suction path 40, and the vacuum suction path 40 tightly sucks a workpiece when the dynamic rotary part rotates at a high speed; the static part is provided with a purification gas path 30, a small gap 60 is arranged between the dynamic rotary part and the static part, the purification gas path 30 is communicated with the small gap 60, and the purification gas path 30 is ventilated to blow out impurities in the small gap 60, so that the performance and the service life of the whole structure are ensured.
The dynamic rotating part comprises a sealing shaft 11, a rotating disc 12, a rotating shaft 13, a gland 14, a first fixing screw 15, a second fixing screw 16 and a third fixing screw 17. The sealing shaft 11 is fixedly connected with the rotary disc 12 through a first fixing screw 15, the rotary disc 12 is fixedly connected with the rotary shaft 13 through a second fixing screw 16, and the gland 14 is fixedly arranged at the lower end part of the sealing shaft 11 through a third fixing screw 17. The sealing shaft 11, the rotary disk 12, the rotary shaft 13 and the gland 14 are fixedly connected to form a dynamic rotary part. The middle of the sealing shaft 11 is provided with a vacuum air suction path 40, a vacuum suction fixture 50 fixedly arranged on the rotary disc 12, a vacuum pump externally connected with the rotary table works, and the vacuum air suction path 40 tightly sucks a workpiece on the vacuum suction fixture 50.
The stationary part comprises a gland 21, an air guide shaft 22, a labyrinth ring 23, two bearings, an O-ring 25.
The sealing sleeve 21 is sleeved on the sealing shaft 11, the sealing sleeve 21 is in clearance fit with the sealing shaft 11, a small clearance 60 is formed between the sealing sleeve 21 and the sealing shaft 11, in the embodiment, the bearing is a deep groove ball bearing 24, the two deep groove ball bearings 24 are installed at the upper end portion and the lower end portion of the sealing sleeve 21 to play a limiting role, the sealing shaft 11 is in clearance fit with the sealing sleeve 21, the installation of the deep groove ball bearings 24 ensures that the sealing shaft 11 rotates smoothly at a high speed, and the sealing shaft is sealed with a traditional sealing ring in a distinguishing mode.
The labyrinth ring 23 is U-shaped in cross-section, the labyrinth ring 23 being located at the lower end of the gland 21. The outside protrusion of outer wall of gland 14 forms the installation department of falling L shape, the peripheral of gland 14 fall L shape installation department with labyrinth ring 23 cooperation forms labyrinth seal structure, can use the vacuum to play labyrinth protection effect when inhaling at the revolving stage, because some impurity can be inhaled to the vacuum is inhaled, impurity if getting into the inside cavity of revolving stage, can cause the damage of the inside precision component of revolving stage, like bearing, encoder, so increase labyrinth seal and reduce the risk that gets into impurity.
The air guide shaft 22 is fixedly installed outside the sealing sleeve 21, and specifically, the upper end and the lower end of the air guide shaft 22 are fixedly installed with the sealing sleeve 21 through O-rings 25, respectively. Be equipped with first passageway on the air guide shaft 22, be equipped with the second passageway on the seal cover 21, after air guide shaft 22 and seal cover 21 fixed connection, first passageway and second passageway intercommunication form purification gas circuit 30, seal cover 21 and revolving axle 13 clearance fit, be equipped with little clearance 60 between the two and rotate for satisfying high-speed, purification gas circuit 30 and the little clearance 60 intercommunication of the two, when vacuum suction circuit 40 during operation, can influence the vacuum suction effect because of opening, purification gas circuit 30 is the closed condition, when vacuum suction circuit 40 finishes, purification gas circuit 30 opens, will probably get into revolving stage internal cavity, little clearance 60 between sealed axle 11 and the seal cover 21, impurity in the labyrinth structure blows out, guarantee the performance and the life-span of whole rotary joint structure.
In the working process of the self-purification vacuum suction rotary joint of the rotary table, a dynamic rotary part consisting of the sealing shaft 11, the rotary disc 12, the rotary shaft 13 and the gland 14 rotates at a high speed, and because the vacuum suction clamp 50 fixed above the rotary disc 12 needs the vacuum suction path 40, the vacuum pump externally connected with the rotary table works to form the vacuum suction path 40 and tightly suck workpieces on the vacuum suction clamp 50. After the work is finished, the rotary table stops rotating, and the workpiece on the vacuum suction fixture 50 is taken down; simultaneously, the purification gas circuit 30 is opened to purify the rotary joint. After the workpiece is taken down and re-clamped, the purification gas circuit 30 is stopped, the vacuum gas suction circuit 40 is opened, and meanwhile, the rotary table rotates at a high speed as required to complete a round.
According to the vacuum suction rotary joint for self-purification of the rotary table, the purification gas path 30 is added, when the vacuum suction path 40 is finished, the purification gas path 30 is opened, impurities which possibly enter a small gap 60 between the inner cavity of the rotary table and the sealing shaft 11 and the sealing sleeve 21 and enter a labyrinth structure are blown out, and the performance and the service life of the whole rotary joint structure are guaranteed; furthermore, the labyrinth seal reduces the risk of ingress of impurities; the gap between the seal shaft 11 and the seal sleeve 21 is sealed, and the rotation at a high rotation speed can be realized.
Above, all the embodiments are only the preferred embodiments of the present invention, and the present invention is not limited in any way; those skilled in the art can readily practice the invention as shown and described in the drawings and detailed description herein; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (7)
1. The utility model provides a revolving joint is inhaled with vacuum of self-purification to revolving stage, includes dynamic revolving part, static part, its characterized in that: the dynamic rotary component is provided with a vacuum gas suction path, and when the dynamic rotary component rotates at a high speed, the vacuum gas suction path tightly sucks the workpiece; the static part is provided with a purification gas path, a gap is arranged between the dynamic rotary part and the static part, the purification gas path is communicated with the gap, and the purification gas path is used for ventilating to purify the gap;
the dynamic rotating part comprises a sealing shaft and a gland, the gland is fixedly arranged at the lower end of the sealing shaft, and the vacuum suction path is positioned in the middle of the sealing shaft;
the static component comprises a sealing sleeve and an air guide shaft, the sealing sleeve is sleeved on the sealing shaft, a gap is formed between the sealing sleeve and the sealing shaft, the air guide shaft is fixedly arranged outside the sealing sleeve, and the purification air path is positioned on the air guide shaft, is communicated with the gap and is used for purifying the gap;
the static component further comprises two bearings, the two bearings are installed at the two ends of the sealing sleeve, the sealing shaft is in clearance fit with the sealing sleeve, and the bearings are installed at the two ends of the sealing sleeve to guarantee that the sealing shaft can smoothly rotate at a high speed.
2. A self-cleaning vacuum suction rotary joint for a turntable as claimed in claim 1, wherein: the stationary part further comprises a labyrinth ring, and the periphery of the gland cooperates with the labyrinth ring to form a labyrinth structure to reduce the risk of entering impurities.
3. A self-cleaning vacuum suction rotary joint for a turntable as claimed in claim 2, wherein: the static part further comprises a fixing screw, a threaded hole is formed in the gland, and the gland is fixedly installed at the bottom of the sealing shaft through the fixing screw.
4. A self-cleaning vacuum suction rotary joint for a turntable as set forth in claim 3, wherein: the static part also comprises an O-shaped ring, and the air guide shaft is fixedly connected with the sealing sleeve through the O-shaped ring.
5. A self-cleaning vacuum suction rotary joint for a turntable as claimed in claim 1, wherein: the bearing is a deep groove ball bearing.
6. A self-cleaning vacuum suction rotary joint for a turntable as claimed in claim 1, wherein: the dynamic rotating part also comprises a rotating disc, and the sealing shaft is fixedly connected with the rotating disc.
7. A self-cleaning vacuum suction rotary joint for a turntable as set forth in claim 6, wherein: the dynamic rotating part also comprises a rotating shaft, and the rotating disc is fixedly connected with the rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811433609.2A CN109707936B (en) | 2018-11-28 | 2018-11-28 | Revolving joint is inhaled with vacuum of self-purification to revolving stage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811433609.2A CN109707936B (en) | 2018-11-28 | 2018-11-28 | Revolving joint is inhaled with vacuum of self-purification to revolving stage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109707936A CN109707936A (en) | 2019-05-03 |
| CN109707936B true CN109707936B (en) | 2021-08-20 |
Family
ID=66255227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811433609.2A Active CN109707936B (en) | 2018-11-28 | 2018-11-28 | Revolving joint is inhaled with vacuum of self-purification to revolving stage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109707936B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050126644A1 (en) * | 2003-12-16 | 2005-06-16 | Hampton Scott M. | Recreational vehicle valve and connector assembly for rinsing a sewer hose |
| CN204345185U (en) * | 2014-11-19 | 2015-05-20 | 刘海云 | Automatically controlled differential extraction vacuum rotating platform |
| CN106584165A (en) * | 2016-10-19 | 2017-04-26 | 广州市昊志机电股份有限公司 | Rotating table device with vacuum suction function |
| CN206171885U (en) * | 2016-09-05 | 2017-05-17 | 深圳市炫硕光电科技有限公司 | Station rotary mechanism |
| CN207740595U (en) * | 2017-12-29 | 2018-08-17 | 山东华鹏玻璃股份有限公司 | A kind of glass bubbling machine retainer platform vacuum rotating connector |
-
2018
- 2018-11-28 CN CN201811433609.2A patent/CN109707936B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050126644A1 (en) * | 2003-12-16 | 2005-06-16 | Hampton Scott M. | Recreational vehicle valve and connector assembly for rinsing a sewer hose |
| CN204345185U (en) * | 2014-11-19 | 2015-05-20 | 刘海云 | Automatically controlled differential extraction vacuum rotating platform |
| CN206171885U (en) * | 2016-09-05 | 2017-05-17 | 深圳市炫硕光电科技有限公司 | Station rotary mechanism |
| CN106584165A (en) * | 2016-10-19 | 2017-04-26 | 广州市昊志机电股份有限公司 | Rotating table device with vacuum suction function |
| CN207740595U (en) * | 2017-12-29 | 2018-08-17 | 山东华鹏玻璃股份有限公司 | A kind of glass bubbling machine retainer platform vacuum rotating connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109707936A (en) | 2019-05-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109707746A (en) | Bearing seal structure and electro spindle including the sealing structure | |
| CN108097986B (en) | Lathe spindle air cooling structure | |
| CN109707936B (en) | Revolving joint is inhaled with vacuum of self-purification to revolving stage | |
| CN204253645U (en) | The novel sealing structure of high-speed electric main shaft | |
| CN205798963U (en) | There is the rotary table of gas curtain protection device | |
| CN104625821B (en) | Cutter handle component | |
| CN201705942U (en) | Spindle sealing device for grinding machine | |
| CN203702666U (en) | Centrifugal pump cooling dustproof disk | |
| CN101340116A (en) | Self-blowing apparatus of high speed electric main shaft having reversed thread | |
| CN206221509U (en) | Pneumatic output shafts based on magnetism mixing spherical bearing | |
| CN106958660B (en) | A kind of grease lubrication electro spindle | |
| CN205780362U (en) | A kind of bearing holder device | |
| JPS62120993A (en) | Dustproof structure of industrial robot | |
| CN206253657U (en) | A kind of main axle structure for multi-wire saw | |
| CN201270444Y (en) | Self-blowing apparatus of high speed electric main shaft having reversed thread | |
| CN210623570U (en) | Multi-layer labyrinth groove type sealing structure of electric spindle | |
| CN108972022B (en) | Low-speed high-torque rare earth permanent magnet direct-drive rotary table for five-axis linkage machine tool | |
| TWM451196U (en) | High-speed spindle with anti-sputtering function | |
| CN209229025U (en) | The air-tight structure of main shaft | |
| CN207835288U (en) | A kind of hollow shaft motor | |
| CN106979335A (en) | A kind of high speed drill attacks owner's axle integral sealing safeguard structure | |
| CN207642910U (en) | A kind of double-end polishing machine electro spindle | |
| CN209012267U (en) | A kind of automobile gearbox bearing ring | |
| CN2864167Y (en) | Dust-proof noise reduction DC fan | |
| CN203030914U (en) | Bearing outer ring gland for high-speed ball electric spindles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |