CN107838694B - A kind of quiet dynamic pressure directly turns platform - Google Patents
A kind of quiet dynamic pressure directly turns platform Download PDFInfo
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- CN107838694B CN107838694B CN201711215058.8A CN201711215058A CN107838694B CN 107838694 B CN107838694 B CN 107838694B CN 201711215058 A CN201711215058 A CN 201711215058A CN 107838694 B CN107838694 B CN 107838694B
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- shell
- main shaft
- oil
- dynamic pressure
- quiet dynamic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
- B23Q1/38—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members using fluid bearings or fluid cushion supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention discloses a kind of quiet dynamic pressures directly to turn platform, including shell, main shaft, inner water sleeve and stator, rotor, the shell is in cavity structure step-like and with wall thickness, shell and inner water sleeve match to form complete spiral helicine cooling duct, the interior of shell is reserved with the oil line pipe and waterway pipe for coming with circuit formed when pouring, on the inner cavity top of shell, bottom end face and appears on the stage shoulder end face and intracavity sidewall corresponding with main shaft third section offers annular oil guide groove.It is completely separated by the pressure bearing medium of external world's supply between shell and main shaft in the present invention, to lower relative friction between the two, improve Main Shaft Service Life and precision stability, the body formation of deielectric-coating is not limited by relative sliding velocity simultaneously, according to using the technical requirements can be under various speed, there is larger bearing capacity, greatly improves the use scope of workbench.
Description
Technical field
The present invention relates to lathe turntable technical fields more particularly to a kind of quiet dynamic pressure directly to turn platform.
Background technique
Currently, in terms of the lathes such as numerical control vertical grinder, vertical lathe, machining center, NC milling center, directly
Turning platform technology is one of vital link in milling vehicle power and energy, numerical control rotating platform and turning master when turning when it is milling
The execution unit of axis, it is desirable that it has the spies such as high-precision, high rigidity, high revolving speed, high stability, lower calorific value in use
Point, thus directly turn platform technology be in entire milling vehicle Compositions of metal-working machines structured design process the critical elements to be considered it
One.
Summary of the invention
The object of the present invention is to provide a kind of quiet dynamic pressures directly to turn platform, is carried, is used by the pressure film that oil guide groove is formed
In replacing traditional bearing to carry, to greatly reduce the abrasion between kinematic pair, the service life of workbench is greatly improved.
To achieve the above object, the technical scheme adopted by the invention is that:
A kind of quiet dynamic pressure directly turns platform, including shell, main shaft, inner water sleeve and stator, rotor, the shell in step-like and
Cavity structure with wall thickness, the main shaft, inner water sleeve and stator, rotor are laid in the inner cavity of shell, and main shaft is successively worn
Rotor, stator, inner water sleeve are crossed, rotor is set in stator interior after being embedded in spindle outer wall, and stator is embedded in inside inner water sleeve, interior
The cooling bath of half channel-shaped is offered outside water jacket along the hand of spiral；The main shaft is the three-stage up and down that diameter is sequentially reduced and divides
For first segment, second segment and third section, it is laid with screw thread outside the lower end of main shaft third section, the housing cavity bottom is arranged with
Thrust bearing, main shaft third section is set in the inner ring of the thrust bearing and its threaded portion passes through thrust bearing；Shell
Inner cavity middle part of sliding channel, which offers the spiral helicine cooling bath to match with half channel-shaped outside inner water sleeve, and the two matches to have formed
Whole spiral helicine cooling duct, the interior of shell are reserved with the oil line pipe and water for coming with circuit formed when pouring
Road pipeline, on the inner cavity top of shell, bottom end face and appear on the stage shoulder end face and intracavity sidewall corresponding with main shaft third section it is equal
Annular oil guide groove is offered, the oil outlet of the oil line pipe is connected to oil guide groove, the water outlet of the waterway pipe and cooling
Channel connection.
Further, on main shaft first segment outer diameter be equal to shell upper shoulder outer diameter.
Further, the threaded portion of the main shaft third section is connected with locking nut after passing through thrust bearing.
Further, adjustment gasket is provided between the thrust bearing and main shaft, the adjustment gasket is to adjust shell
The gap that body is appeared on the stage between shoulder end face and main shaft first segment lower end surface.
Further, protrusion rectangular, with thickness, four angles of the protrusion are provided on the inside shoulder of the shell
The place of falling offers threaded hole.
Further, the oil line pipe and waterway pipe can be arranged along any direction, can also multiple spot be simutaneously arranged, and go out
Hydraulic fluid port and water outlet are arranged at topological shape.
Further, the housing bottom is connected with the oil sump for accommodating circulatory mediator in oil line pipe, the oil sump
Oil pocket section it is fan-shaped.
Further, the equal position of oil return opening, oil inlet of the corresponding water return outlet of the waterway pipe, water inlet and oil line pipe
It gets out of a predicament or an embarrassing situation on bottom end face in shell.
The beneficial effects of the present invention are:
The present invention has broken the state of conventionally employed loading ability of bearing, is carried by the high pressure oil film that oil guide groove is formed, thus
The abrasion between kinematic pair is greatly reduced, workbench service life is greatly improved；The interior of shell is reserved with when pouring
The oil line pipe and waterway pipe for coming with circuit formed saves the laying of external pipe: on the one hand, multiple groups be can't see in outside
Oil line pipe and waterway pipe, it is overall beautiful；On the other hand, integral layout is more reasonable, reduces production cost；Pressure film
Homogenization and good resistance to shock ensure that main shaft has very high running accuracy and smoothness of operation；Shell and main shaft it
Between it is completely separated by the bearing medium of external world's supply, to lower relative friction between the two, improve Main Shaft Service Life and
Precision stability, while the formation of medium membrane body is not limited by relative sliding velocity, under various speed, there is larger carrying
Ability greatly improves the use scope of lathe；The inner cavity middle part of sliding channel of shell offers and half channel-shaped phase outside inner water sleeve
The cooling bath and the two of matched half-thread shape match to form complete spiral helicine cooling duct, cooling duct and waterway tube
Road connection greatly improves cooling effect to directly take away the heat that friction generates from enclosure interior.
Detailed description of the invention
Fig. 1 is the configuration schematic diagram that a kind of quiet dynamic pressure of the present invention directly turns platform.
Fig. 2 is the schematic diagram of internal structure that a kind of quiet dynamic pressure of the present invention directly turns platform.
Fig. 3 is the schematic diagram that a kind of quiet dynamic pressure of the present invention directly turns shell in platform.
Numbering in the drawing are as follows: 1 is shell, and 2 be main shaft, and 3 be inner water sleeve, and 4 be stator, and 5 be cooling bath, and 6 be oil guide groove, 7
It is locking nut for thrust bearing, 8,9 be adjustment gasket, and 10 be water return outlet, and 11 be oil return opening, and 12 be oil sump, and 13 be water inlet,
14 be oil inlet, and 15 be oil outlet, and 16 be rotor.
Specific embodiment
A specific embodiment of the invention is described in detail with reference to the accompanying drawing.
Embodiment one
As shown in Fig. 1 ~ Fig. 3, a kind of quiet dynamic pressure directly turns platform, including shell 1, main shaft 2, inner water sleeve 3 and stator 4, described
For shell 1 in cavity structure step-like and with wall thickness, the main shaft 2, inner water sleeve 3 and stator 4, rotor 16 are laid in shell
In 1 inner cavity, main shaft 2 sequentially passes through rotor 16, stator 4, inner water sleeve 3, and rotor 16 is set in stator after being embedded in 2 outer wall of main shaft
Inside 4, stator 4 is embedded in inside inner water sleeve 3, offers the cooling bath 5 of half channel-shaped outside inner water sleeve 3 along the hand of spiral；It is described
Main shaft 2 is the three-stage up and down that is sequentially reduced of diameter and is divided into first segment, second segment and third section, the lower end of 2 third section of main shaft
Outside is laid with screw thread, and 1 intracavity bottom of shell is arranged with thrust bearing 7, and 2 third section of main shaft is set in the thrust bearing
In 7 inner ring and its threaded portion passes through thrust bearing 7；The inner cavity middle part of sliding channel of shell 1 offers and 3 half slot of outside of inner water sleeve
The spiral helicine cooling bath 5 and the two that shape matches match to form complete spiral helicine cooling duct, in the side wall of shell 1
Portion is reserved with the oil line pipe and waterway pipe for coming with circuit formed when pouring, on the inner cavity top of shell 1, bottom end face
With appear on the stage shoulder end face and intracavity sidewall corresponding with 2 third section of main shaft offers annular oil guide groove 6, the oil line pipe
Oil outlet 15 is connected to oil guide groove 6, and the water outlet of the waterway pipe is connected to cooling duct；The outer diameter of first segment on main shaft 2
Equal to the outer diameter of 1 upper shoulder of shell, the threaded portion of 2 third section of main shaft is connected with locking nut 8 after passing through thrust bearing 7, only
It is provided with adjustment gasket 9 between thrust bearing 7 and main shaft 2, adjustment gasket 9 is appeared on the stage shoulder end face and main shaft 2 first to adjustment housings 1
Gap between section lower end surface；Protrusion rectangular, with thickness, four angles of the protrusion are provided on the inside shoulder of shell 1
The place of falling offers threaded hole；Oil line pipe and waterway pipe can arrange along any direction, can also multiple spot be simutaneously arranged, and oil outlet
15 and water outlet at topological shape arrange, it is described topology shape be one of bus-type topology, Star topology, ring topology or several
Kind；1 bottom of shell is connected with the oil sump 12 for accommodating circulatory mediator in oil line pipe, and the oil pocket section of the oil sump 12 is in fan
Shape；The oil return opening 11 of the corresponding water return outlet 10 of waterway pipe and oil line pipe is respectively positioned on shell 1 and gets out of a predicament or an embarrassing situation on bottom end face.
When assembly, the quantity of adjustment gasket 9 is adjusted, shoulder end face and 2 first segment lower end surface of main shaft so that adjustment housings 1 are appeared on the stage
Between gap, guarantee to form required pressure film between 2 lower end surface of main shaft and the annular oil guide groove 6 for shoulder end face of appearing on the stage, from
And greatly reduce the abrasion between kinematic pair；When operation, on the one hand, complete by the bearing medium of external world's supply between shell 1 and main shaft 2
It separates entirely, to lower relative friction between the two, improves 2 service life of main shaft and precision stability, while medium membrane body
Formation do not limited by relative sliding velocity, under various speed, have larger bearing capacity, greatly improve lathe
Use scope；On the other hand, the inner cavity middle part of sliding channel of shell 1 offers the half-thread to match with 3 half channel-shaped of outside of inner water sleeve
The cooling bath 5 and the two of shape match to form complete spiral helicine cooling duct, and cooling duct is connected to waterway pipe, thus
Directly the heat that friction generates is taken away from 1 inside of shell, greatly improves cooling effect.
The embodiment of the above, only presently preferred embodiments of the present invention, not limits practical range of the invention,
Therefore all equivalent change or modifications done according to structure, feature and principle described in the invention patent range, it should be included in this hair
In bright claim.
Claims (7)
1. a kind of quiet dynamic pressure directly turns platform, including shell (1), main shaft (2), inner water sleeve (3) and stator (4), rotor (16), special
Sign is that the shell (1) is in cavity structure step-like and with wall thickness, the main shaft (2), inner water sleeve (3) and stator
(4), rotor (16) is laid in the inner cavity of shell (1), and main shaft (2) sequentially passes through rotor (16), stator (4), inner water sleeve
(3), rotor (16) is set in stator (4) inside after being embedded in main shaft (2) outer wall, and stator (4) is embedded in inner water sleeve (3) inside,
The cooling bath (5) of half channel-shaped is offered outside inner water sleeve (3) along the hand of spiral；The main shaft (2) is sequentially reduced upper for diameter
Lower three-stage is simultaneously divided into first segment, second segment and third section, is laid with screw thread, the shell outside the lower end of main shaft (2) third section
Body (1) intracavity bottom is arranged with thrust bearing (7), and main shaft (2) third section is set in the inner ring of the thrust bearing (7) and it
Threaded portion passes through thrust bearing (7)；The inner cavity middle part of sliding channel of shell (1) offers and the external half channel-shaped phase of inner water sleeve (3)
The spiral helicine cooling bath (5) and the two matched match to form complete spiral helicine cooling duct, the interior of shell (1)
The oil line pipe and waterway pipe for coming with circuit formed when casting is reserved with, on the inner cavity top of shell (1), bottom end face
With appear on the stage shoulder end face and intracavity sidewall corresponding with main shaft (2) third section offers annular oil guide groove (6), the oil-way pipe
The oil outlet (15) in road is connected to oil guide groove (6), and the water outlet of the waterway pipe is connected to cooling duct；The thrust bearing
(7) be provided between main shaft (2) adjustment gasket (9), the adjustment gasket (9) to adjustment housings (1) appear on the stage shoulder end face and
Gap between main shaft (2) first segment lower end surface.
2. a kind of quiet dynamic pressure according to claim 1 directly turns platform, which is characterized in that first segment on the main shaft (2)
Outer diameter is equal to the outer diameter of shell (1) upper shoulder.
3. a kind of quiet dynamic pressure according to claim 2 directly turns platform, which is characterized in that the spiral shell of main shaft (2) the third section
Line is connected with locking nut (8) after partially passing through thrust bearing (7).
4. a kind of quiet dynamic pressure according to claim 1 directly turns platform, which is characterized in that on the inside shoulder of the shell (1)
It is provided with protrusion rectangular, with thickness, four corners of the protrusion offer threaded hole.
5. a kind of quiet dynamic pressure according to claim 1 directly turns platform, which is characterized in that the oil line pipe and waterway pipe
Can be arranged along any direction, can also multiple spot be simutaneously arranged, and oil outlet (15) and water outlet at topological shape arrange.
6. a kind of quiet dynamic pressure according to claim 1 directly turns platform, which is characterized in that shell (1) bottom is connected with
For accommodating the oil sump (12) of circulatory mediator in oil line pipe, the oil pocket section of the oil sump (12) is fan-shaped.
7. a kind of quiet dynamic pressure according to claim 1 directly turns platform, which is characterized in that the corresponding return water of waterway pipe
The oil return opening (11) of mouth (10) and oil line pipe is respectively positioned on shell (1) and gets out of a predicament or an embarrassing situation on bottom end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711215058.8A CN107838694B (en) | 2017-11-28 | 2017-11-28 | A kind of quiet dynamic pressure directly turns platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711215058.8A CN107838694B (en) | 2017-11-28 | 2017-11-28 | A kind of quiet dynamic pressure directly turns platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107838694A CN107838694A (en) | 2018-03-27 |
| CN107838694B true CN107838694B (en) | 2019-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711215058.8A Active CN107838694B (en) | 2017-11-28 | 2017-11-28 | A kind of quiet dynamic pressure directly turns platform |
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| CN (1) | CN107838694B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117124244B (en) * | 2023-10-23 | 2024-03-08 | 综欣工业装备(潍坊)有限公司 | Static and dynamic pressure direct-drive rotary table for grinding machine |
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| CN201044389Y (en) * | 2007-05-31 | 2008-04-02 | 熊万里 | Electric motor built-in type activity piezo-electricity principal axis |
| CN102335755A (en) * | 2011-09-22 | 2012-02-01 | 宝鸡忠诚机床股份有限公司 | Large-sized precise direct-driving main shaft structure |
| CN102886534A (en) * | 2012-11-01 | 2013-01-23 | 上海机床厂有限公司 | High-speed and high-rigidity dynamic and static pressure built-in electric main shaft |
| CN203636593U (en) * | 2013-11-26 | 2014-06-11 | 普瑞森（安阳）机械有限公司 | Hydrodynamic-pressure hydrostatic-pressure grinding electric spindle |
| CN204504240U (en) * | 2015-03-25 | 2015-07-29 | 张黎明 | The efficient dynamic/static piezoelectric main shaft of a kind of high speed and super precision |
| CN205496995U (en) * | 2016-04-21 | 2016-08-24 | 江苏宏达数控科技股份有限公司 | Revolving stage is directly driven in numerical control |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6390387B2 (en) * | 2014-12-01 | 2018-09-19 | 日本電産株式会社 | Hydrodynamic bearing device, spindle motor, and disk drive device |
-
2017
- 2017-11-28 CN CN201711215058.8A patent/CN107838694B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201044389Y (en) * | 2007-05-31 | 2008-04-02 | 熊万里 | Electric motor built-in type activity piezo-electricity principal axis |
| CN102335755A (en) * | 2011-09-22 | 2012-02-01 | 宝鸡忠诚机床股份有限公司 | Large-sized precise direct-driving main shaft structure |
| CN102886534A (en) * | 2012-11-01 | 2013-01-23 | 上海机床厂有限公司 | High-speed and high-rigidity dynamic and static pressure built-in electric main shaft |
| CN203636593U (en) * | 2013-11-26 | 2014-06-11 | 普瑞森（安阳）机械有限公司 | Hydrodynamic-pressure hydrostatic-pressure grinding electric spindle |
| CN204504240U (en) * | 2015-03-25 | 2015-07-29 | 张黎明 | The efficient dynamic/static piezoelectric main shaft of a kind of high speed and super precision |
| CN205496995U (en) * | 2016-04-21 | 2016-08-24 | 江苏宏达数控科技股份有限公司 | Revolving stage is directly driven in numerical control |
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| CN107838694A (en) | 2018-03-27 |
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Jia Anmin Inventor after: Jia Bin Inventor after: Li Chen Inventor before: Jia Anmin Inventor before: Yan An Inventor before: Jia Bin Inventor before: Li Chen |
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