CN219598884U - Static pressure feeding sliding sleeve structure - Google Patents
Static pressure feeding sliding sleeve structure Download PDFInfo
- Publication number
- CN219598884U CN219598884U CN202320423107.1U CN202320423107U CN219598884U CN 219598884 U CN219598884 U CN 219598884U CN 202320423107 U CN202320423107 U CN 202320423107U CN 219598884 U CN219598884 U CN 219598884U
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- China
- Prior art keywords
- oil
- main shaft
- hole
- mounting seat
- oil return
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Classifications
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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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
-
- 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
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bearings For Parts Moving Linearly (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The utility model discloses a static pressure feeding sliding sleeve structure, which relates to the field of machine tool spindles and aims at solving the problem that whether a movable sleeve moves along the axial direction of a sliding sleeve or not is difficult to control in the prior art.
Description
Technical Field
The utility model relates to the field of machine tool spindles, in particular to a static pressure feeding sliding sleeve structure.
Background
The sliding sleeve structure is applied to the field of high-precision machine tools, traditional static pressure feeding is realized by oil pressure lubrication, the conditions of large gap and low machining precision caused by serious abrasion can occur, and therefore the efficiency of the main shaft is low.
Chinese patent CN210789248U discloses a mechanical spindle which is movable integrally relative to a sliding sleeve, comprising a sliding sleeve, a rotating shaft, a mounting seat, an axial motor arranged on the mounting seat, a spindle motor and a movable sleeve, wherein the axial motor and the spindle motor are positioned on the same side of the mounting seat, and the movable sleeve is positioned on the other side of the mounting seat; the rotating shaft is coaxially arranged in the movable sleeve, the movable sleeve is coaxially arranged in the sliding sleeve, and the movable sleeve can move along the axial direction of the sliding sleeve; an output shaft of the axial motor is connected with a screw rod in a linkage way, and the screw rod is arranged in parallel with the rotating shaft; the sliding sleeve is provided with a nut pair, and the free end of the screw rod penetrates through the mounting seat to be in threaded fit with the nut pair; the axial motor is driven to be linked with the mounting seat, and the mounting seat is linked with the axial motor, the movable sleeve and the spindle motor which are arranged on the mounting seat along the axial movement of the movable sleeve; the spindle motor is used for driving the rotating shaft to rotate, wherein the movable sleeve moves along the axial direction of the sliding sleeve, whether the movable sleeve moves or not is difficult to control, and the spindle motor needs to be improved.
Disclosure of Invention
In view of the problems existing in the prior art, the utility model discloses a static pressure feeding sliding sleeve structure, which adopts the technical scheme that the static pressure feeding sliding sleeve structure comprises a main shaft mounting seat, wherein an oil return port, an oil return passage and an oil return through hole are arranged on the main shaft mounting seat, the oil return port, the oil return passage and the oil return through hole are communicated, a first shaft sealing ring is further arranged at one end, close to the oil return through hole, of the main shaft mounting seat, a first dust ring is further arranged on the main shaft mounting seat, an oil inlet is arranged on the main shaft mounting seat, the static pressure feeding sliding sleeve structure further comprises an oil inlet passage and an oil inlet through hole, the oil inlet passage and the oil inlet through hole are communicated, a second shaft sealing ring is arranged at one end, close to the oil inlet through hole, of the main shaft mounting seat, and a second dust ring is further arranged on the main shaft mounting seat.
As a preferable technical scheme of the utility model, the inner ring of the main shaft mounting seat is provided with a spiral channel, and the spiral channel is arranged at one side close to the oil inlet through hole, so that oil can flow in a conducting way.
As a preferable technical scheme of the utility model, a large cavity, an oil groove and a small cavity are arranged on the inner wall of the main shaft mounting seat, the oil groove is communicated with the small cavity and the large cavity, the circulation of oil is facilitated, the tail end of the small cavity is connected with an annular oil duct, and the gap between the main shaft mounting seat and the sliding sleeve is between 0.008mm and 0.025mm.
As a preferable technical scheme of the utility model, a sliding sleeve is connected in the main shaft mounting seat in a sliding way, a movable mandrel is movably connected in the sliding sleeve, the sliding sleeve can slide on the main shaft mounting seat through static pressure generated by oil liquid, and a first sealing lip and a second sealing lip are arranged on the first dust ring and the second dust ring to form a double-lip sealing structure.
According to the preferable technical scheme, guide rail hydraulic oil is introduced into the oil inlet, the guide rail hydraulic oil flows from the oil inlet channel to the oil inlet through hole, the guide rail hydraulic oil flows from the spiral channel to the oil groove in the main shaft mounting seat and then flows to the small cavities, the guide rail hydraulic oil flows from the oil return through hole to the oil return channel and then to the oil return port in the oil return channel, a hydraulic station is arranged outside, so that oil entering from the oil inlet enters the oil inlet again after coming out from the oil return port through circulation, the oil can be firstly fed into the large cavities and then automatically and uniformly distributed to the structures of the small cavities, the pressure of the oil can be ensured to float the main shaft, if the oil is reversely fed from the oil return port, static pressure cannot be immediately formed, and damage can be caused to the power head.
The utility model has the beneficial effects that: according to the utility model, through arranging the oil inlet and the oil return port, guide rail hydraulic oil is introduced from the oil inlet, oil is extruded from the hydraulic station, the guide rail hydraulic oil enters a gap between the main shaft mounting seat and the sliding sleeve through the oil inlet passage and moves along the spiral passage, the oil is uniformly distributed into a plurality of small cavities through the oil grooves, the annular oil passage is arranged, the gap between the mounting seat and the sliding sleeve is small, so that high oil pressure is formed, the main shaft floats, the main shaft is convenient to slide, direct friction is not generated, and meanwhile, the anti-vibration effect can be realized, particularly, when precision products such as steel parts are processed, the oil finally enters the oil return passage through the oil return passage and finally is discharged from the oil return port, the sealing ring for the first shaft plays a role of preventing oil seepage, the first dust ring blocks dust and fine particles from entering the main shaft mounting seat, under the action of the oil, the sliding sleeve and the main shaft mounting seat generate static pressure, the movable mandrel rotates in the sliding sleeve, and whether the sliding sleeve and the main shaft mounting seat slide or not is realized by controlling the pressure of the oil, and the sliding sleeve is easy to control.
Drawings
FIG. 1 is a schematic cross-sectional view of the present utility model;
FIG. 2 is a second schematic cross-sectional view of the present utility model;
FIG. 3 is a schematic diagram of the structure of the present utility model;
FIG. 4 is a schematic cross-sectional view of a second dust ring according to the present utility model.
In the figure: 1. a spindle mounting base; 2. an oil return port; 3. an oil return passage; 4. an oil return through hole; 6. a seal ring for the first shaft; 7. a first dust ring; 8. a small cavity; 9. an oil groove; 10. an oil inlet; 11. an oil inlet duct; 12. an oil inlet through hole; 14. a sealing ring for the second shaft; 15. a second dust ring; 16. a spiral channel; 17. a sleeve of sliding sleeve; 18. a movable mandrel; 19. a large cavity; 20. an annular oil passage; 21. a first sealing lip; 22. and a second sealing lip.
Detailed Description
Example 1
As shown in fig. 1 to 4, this embodiment discloses a first embodiment of the present utility model, and the adopted technical scheme includes that the main shaft mounting seat 1 and the sliding sleeve 17 are included, an oil return port 2 is provided on the main shaft mounting seat 1, and the main shaft mounting seat further includes an oil return duct 3 and an oil return through hole 4, the oil return port 2, the oil return duct 3 and the oil return through hole 4 are communicated, a first shaft seal ring 6 is further provided on one end of the main shaft mounting seat 1 near the oil return through hole 4, a first dust ring 7 is further provided on the main shaft mounting seat 1, an oil inlet 10 is further provided on the main shaft mounting seat 1, and the main shaft mounting seat further includes an oil inlet duct 11 and an oil inlet through hole 12, the oil inlet 10, the oil inlet duct 11 and the oil inlet through hole 12 are communicated, a second shaft seal ring 14 is further provided on one end of the main shaft mounting seat 1 near the oil inlet through hole 12, a second dust ring 15 is further provided on the main shaft mounting seat 1, and an inner ring of the main shaft mounting seat 1 is provided with a spiral channel 16, and the spiral channel 16 is provided on one side near the oil inlet through hole 12, and moves along the spiral channel 16. Six oil grooves 9 are formed, six small cavities 8 are respectively connected to the six oil grooves 9, the oil grooves 9 and six small cavities 8 are in symmetrical structures, oil enters the small cavities 8 from the spiral channel 16 after passing through the large cavity 19 and the oil grooves 9, the oil is enabled to float up through the oil way due to the design of the oil way, finally enters the oil return channel 3 through the oil return through hole 4, finally is discharged from the oil return port 2, the first shaft sealing ring 6 plays a role in preventing oil from seeping out, the first dust ring 7 blocks dust and fine particles from entering the main shaft mounting seat 1, guide rail hydraulic oil is introduced from the oil inlet 10, the oil is extruded from the hydraulic station and has 10kg pressure, the guide rail hydraulic oil enters a gap between the main shaft mounting seat 1 and the sliding sleeve 17 through the oil inlet through hole 12, the second shaft sealing ring 14 serves as a sealing ring and plays a role in sealing the oil, and can bear 80kg oil pressure, and the second dust ring 15 can play a role in preventing dust and fine iron filings from entering.
As a preferable technical scheme of the utility model, static pressure can be generated between the sliding sleeve 17 and the spindle mounting seat 1 only under the action of oil, the sliding sleeve 17 can slide relatively, the movable mandrel 18 rotates in the sliding sleeve 17, the gap between the spindle mounting seat 1 and the sliding sleeve 17 is 0.008mm, the gap is small, high oil pressure is conveniently formed, the lubrication is sufficient, and the sealing performance is good.
As a preferable embodiment of the present utility model, the first dust-proof ring 7 and the second dust-proof ring 15 are double-lip Y-shaped, and the first sealing lip 21 and the second sealing lip 22 are square-lip-shaped in cross section and are tilted upward.
Example 2
The difference between this embodiment and embodiment 1 is that the clearance between the spindle mount 1 and the sliding sleeve 17 is 0.015mm.
Example 3
The difference between this embodiment and embodiment 1 is that the gap between the spindle mount 1 and the sliding sleeve 17 is 0.025mm.
The working principle of the utility model is as follows: firstly, guide rail hydraulic oil is introduced from an oil inlet 10, oil is extruded from a hydraulic station, the guide rail hydraulic oil enters a gap between a main shaft mounting seat 1 and a sliding sleeve 17 through an oil inlet channel 11 and an oil inlet through hole 12, a second shaft sealing ring 14 is a sealing ring, the sealing oil can bear 80kg of oil pressure, a second dust ring 15 can play roles of dust prevention and oil scraping, machining dust and tiny iron filings are prevented from entering, the oil moves along a spiral channel 16, the oil enters a small cavity 8 through an oil groove 9, high oil pressure is formed at an annular oil channel 20, the oil channel diameter is small, the oil pressure is convenient to form high oil pressure, the oil channel is sufficiently lubricated, the sealing performance is good, finally, the oil enters an oil return channel 3 through an oil return through hole 4, finally, the oil is discharged from an oil return port 2, a first shaft sealing ring 6 plays a role of preventing oil seepage, a first dust ring 7 blocks dust and tiny particles from entering the main shaft mounting seat 1, under the oil action, static pressure is generated between the sliding sleeve 17 and the main shaft mounting seat 1, a movable mandrel 18 can relatively slide in the sliding sleeve 17, and a double sealing lip 22 can be formed by a movable mandrel.
The mechanical connection according to the utility model is a customary practice adopted by the person skilled in the art, and the technical teaching can be obtained by a limited number of tests, which belongs to the common general knowledge.
The components not described in detail herein are prior art.
Although the specific embodiments of the present utility model have been described in detail, the present utility model is not limited to the above embodiments, and various changes and modifications without inventive labor may be made within the scope of the present utility model without departing from the spirit of the present utility model, which is within the scope of the present utility model.
Claims (6)
1. The utility model provides a static pressure feeds sliding sleeve structure which characterized in that: including main shaft mount pad (1), be equipped with oil return opening (2) on main shaft mount pad (1), still include oil return duct (3), oil return through-hole (4), oil return opening (2) oil return duct (3) oil return through-hole (4) link up mutually, first sealing washer (6) for the axle still are established to the one end that is close to oil return through-hole (4) on main shaft mount pad (1), still be equipped with first dust ring (7) on main shaft mount pad (1), be equipped with oil inlet (10) on main shaft mount pad (1), still include oil inlet duct (11), oil feed through-hole (12), oil inlet (10) oil feed duct (11) oil feed through-hole (12) link up mutually, the one end that is close to oil feed through-hole (12) on main shaft mount pad (1) is equipped with sealing washer (14) for the second shaft, still be equipped with second dust ring (15) on main shaft mount pad (1).
2. A static pressure feed slide sleeve structure as claimed in claim 1, wherein: the inner ring of the main shaft mounting seat (1) is provided with a spiral channel (16), and the spiral channel (16) is arranged at one side close to the oil inlet through hole (12).
3. A static pressure feed slide sleeve structure as claimed in claim 2, wherein: the novel spindle comprises a spindle mounting seat (1), and is characterized in that a large cavity (19), an oil groove (9) and a small cavity (8) are formed in the inner wall of the spindle mounting seat (1), the oil groove (9) is communicated with the small cavity (8) and the large cavity (19), an annular oil duct (20) is connected to the tail end of the small cavity (8), and a gap between the spindle mounting seat (1) and a sliding sleeve (17) is between 0.008mm and 0.025mm.
4. A static pressure feed slide bushing structure as claimed in claim 3 wherein: the main shaft mounting seat (1) is connected with the sliding sleeve (17) in a sliding mode, and the sliding sleeve (17) is connected with the movable mandrel (18) in a movable mode.
5. The hydrostatic feed slide bushing structure of claim 4, wherein: guide rail hydraulic oil is introduced into the oil inlet (10), the flow direction of the guide rail hydraulic oil is from an oil inlet channel (11) to an oil inlet through hole (12), the flow direction of the guide rail hydraulic oil in the main shaft mounting seat (1) is from a spiral channel (16) to the oil groove (9) and then to the small cavity (8), and the flow direction of the guide rail hydraulic oil at the oil return through hole (4) and the oil return channel (3) is from the oil return through hole (4) to the oil return channel (3) and then to the oil return opening (2).
6. A static pressure feed slide sleeve structure as claimed in claim 1, wherein: the first dustproof ring (7) and the second dustproof ring (15) are respectively provided with a first sealing lip (21) and a second sealing lip (22) to form a double-lip sealing structure.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2022114220904 | 2022-11-14 | ||
| CN202211422090.4A CN115592466A (en) | 2022-11-14 | 2022-11-14 | Static pressure feeding sliding sleeve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219598884U true CN219598884U (en) | 2023-08-29 |
Family
ID=84853558
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211422090.4A Pending CN115592466A (en) | 2022-11-14 | 2022-11-14 | Static pressure feeding sliding sleeve structure |
| CN202320423107.1U Active CN219598884U (en) | 2022-11-14 | 2023-03-08 | Static pressure feeding sliding sleeve structure |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211422090.4A Pending CN115592466A (en) | 2022-11-14 | 2022-11-14 | Static pressure feeding sliding sleeve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN115592466A (en) |
-
2022
- 2022-11-14 CN CN202211422090.4A patent/CN115592466A/en active Pending
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2023
- 2023-03-08 CN CN202320423107.1U patent/CN219598884U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN115592466A (en) | 2023-01-13 |
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