CN216656360U - Static pressure short clamping quick-change intermediate driving main shaft - Google Patents
Static pressure short clamping quick-change intermediate driving main shaft Download PDFInfo
- Publication number
- CN216656360U CN216656360U CN202122915246.XU CN202122915246U CN216656360U CN 216656360 U CN216656360 U CN 216656360U CN 202122915246 U CN202122915246 U CN 202122915246U CN 216656360 U CN216656360 U CN 216656360U
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- China
- Prior art keywords
- main shaft
- spindle
- cylinder body
- bearing
- static pressure
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- Expired - Fee Related
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- 230000003068 static effect Effects 0.000 title claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 230000002706 hydrostatic effect Effects 0.000 claims abstract description 10
- 230000008859 change Effects 0.000 claims description 4
- 230000007547 defect Effects 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002173 cutting fluid Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Classifications
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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
Abstract
The utility model relates to a static pressure short-clamping quick-change intermediate driving spindle, which belongs to the technical field of spindles and comprises a spindle seat, a bearing seat, a front static pressure bearing, a rear static pressure bearing and a spindle cylinder body, wherein waterproof rings are arranged on the left and right sides of the spindle seat, a spindle seat cover is connected to the left side of each waterproof ring, the bearing seat is arranged in the spindle seat, a spindle left cylinder body is arranged on the left side of the bearing seat, the left side of the spindle left cylinder body is connected with a belt pulley, a spindle right cylinder body is arranged in the bearing seat, the static pressure bearing is arranged between the bearing seat and the spindle right cylinder body, a piston ring is arranged in the spindle cylinder body, the waterproof ring is arranged on the left side of the spindle cylinder body, the chuck is connected with the right side of the spindle cylinder body, the waterproof ring is arranged on the right side of the chuck, and a sealing ring is arranged at the joint of each part. The utility model supports the main shaft to rotate through the hydrostatic bearing, has high rotation precision, good vibration resistance and compact structure, and adopts a single chuck, thereby solving the defect that the common hydrostatic clamping quick-change intermediate driving main shaft can not clamp short workpieces.
Description
Technical Field
The utility model relates to the technical field of spindles, in particular to a static pressure short-clamping quick-change intermediate driving spindle.
Background
Most of the existing multi-axis numerical control turning machine tools generally use a middle driving main shaft to clamp the middle part of a workpiece to drive the workpiece to rotate, and simultaneously finish turning processing of two ends of the workpiece so as to improve processing precision and efficiency. The intermediate driving main shaft generally adopts an angular contact ball bearing to support the main shaft to rotate, an elastic chuck is arranged in the angular contact ball bearing to clamp a workpiece, and the rotating speed of the intermediate driving main shaft is generally controlled within a certain range due to the influence of the larger the overall dimension of the angular contact ball bearing and the lower the limit rotating speed, so that the requirement of high rotating speed required by part of workpiece processing cannot be met; in addition, the double main shafts cannot process short workpieces, the structural sealing performance is poor, the bearings are easily corroded by cutting fluid to cause damage, the service life of the main shafts is short, and the maintenance cost is high.
Meanwhile, the utility model discloses a drive main shaft in the middle of the quick change of static pressure centre gripping in the patent number "202021386984.9", the patent name "drive main shaft in the middle of the quick change of static pressure centre gripping". The spindle has the advantages of good waterproof sealing performance, long service life, low running power loss, high mechanical efficiency and good vibration resistance, but only can clamp workpieces with the length of more than 150 mm.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems of defects and defects in the prior art, the utility model provides a static pressure short clamping quick-change intermediate driving spindle, which adopts a single chuck to solve the defect that the static pressure clamping quick-change intermediate driving spindle cannot clamp short workpieces.
The technical scheme adopted by the utility model for solving the technical problem is as follows: the utility model provides a short centre gripping of static pressure quick change intermediate drive main shaft, includes the main shaft seat, the bearing frame, preceding hydrostatic bearing, back hydrostatic bearing, the main shaft cylinder body, the main shaft seat right side is equipped with the outer waterproof circle in the right side, the main shaft seat left side is equipped with waterproof circle in a left side, waterproof circle left side is connected with the main shaft seat lid in a left side, be equipped with the bearing frame in the main shaft seat, the bearing frame left side is provided with main shaft left cylinder body, main shaft left cylinder body left side and belt pulley fixed connection, be equipped with main shaft right cylinder body in the bearing frame, be equipped with preceding hydrostatic bearing, back hydrostatic bearing between bearing frame and the main shaft right cylinder body, be equipped with the main shaft piston ring in the main shaft cylinder body, main shaft piston ring left side is equipped with left waterproof circle, main shaft piston ring right side is connected with the chuck, the chuck right side is equipped with right waterproof circle, main shaft piston ring and belt pulley, belt pulley and main shaft left cylinder body, And sealing rings are arranged at the joints of the bearing seat, the main shaft piston ring, the main shaft left cylinder body, the bearing seat and the right outer waterproof ring.
Further, the sealing ring is an O-shaped sealing ring.
Further, the chuck is a rubber chuck or an elastic chuck.
Furthermore, the diameter of the maximum workpiece clamped by the chuck is 72mm, and the length of the workpiece is 30-80 mm.
The utility model has the following beneficial effects: the single chuck is adopted on the patent basis of the static pressure clamping quick-change intermediate driving main shaft, a shorter workpiece can be clamped, the clamping range is 30-80mm long, the defect that the static pressure clamping quick-change intermediate driving main shaft can only clamp the workpiece with the clamping length being more than 150mm and cannot process the short workpiece is overcome, and the static pressure bearing is adopted to support the main shaft to rotate, so that the rotation precision is high and the vibration resistance is good. The O-shaped sealing ring is arranged, so that the sealing performance and the waterproof capability of the whole main shaft are improved, and the service life is prolonged. Meanwhile, the clamping of short workpieces with different diameters can be met, and the die changing is simple.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a perspective view of the present invention;
in the figure: 1-left waterproof ring, 2-O-shaped sealing ring, 3-main shaft seat cover, 4-belt pulley, 5-main shaft left cylinder body, 6-left inner waterproof ring, 7-rear static pressure bearing, 8-main shaft piston ring, 9-bearing seat, 10-main shaft seat, 11-main shaft right cylinder body, 12-chuck, 13-front static pressure bearing, 14-right outer waterproof ring and 15-right waterproof ring.
Detailed Description
The following detailed description of embodiments of the utility model refers to the accompanying drawings.
As shown in fig. 1-2, the utility model provides a static pressure short clamping quick-change intermediate drive spindle, which comprises a spindle base 10, a bearing seat 9, a front static pressure bearing 13, a rear static pressure bearing 7 and a spindle cylinder body, wherein a right outer waterproof ring 14 is arranged on the right side of the spindle base 10, a left inner waterproof ring 6 is arranged on the left side of the spindle base 10, a spindle base cover 3 is connected on the left side of the left inner waterproof ring 6, the bearing seat 9 is arranged in the spindle base 10, a spindle left cylinder body 5 is arranged on the left side of the bearing seat 9, the left side of the spindle left cylinder body 5 is fixedly connected with a belt pulley 4, a spindle right cylinder body 11 is arranged in the bearing seat 9, a front static pressure bearing 13 and a rear static pressure bearing 7 are arranged between the bearing seat 9 and the spindle right cylinder body 11, a spindle piston ring 8 is arranged in the spindle cylinder body, a left waterproof ring 1 is arranged on the left side of the spindle piston ring 8, and a chuck 12 is connected on the right side of the spindle piston ring 8, the right side of the chuck 12 is provided with a right waterproof ring 15, and the joints of the spindle piston ring 8, the belt pulley 4, the left spindle cylinder body 5, the bearing seat 9, the spindle seat 10, the spindle piston ring 8, the left spindle cylinder body 5, the bearing seat 9 and the right outer waterproof ring 14 are provided with sealing rings.
In the embodiment, the hydrostatic bearing can greatly reduce the friction of the bearing during operation, the friction pair is separated by the pressure oil film during the starting and running periods, the sliding resistance is only from fluid viscosity, meanwhile, the establishment of the oil film pressure is not limited by the movement speed, the hydrostatic bearing can work at low rotation speed or high rotation speed, the friction factor is small, the precision is high, the service life is long, the pressure on the surface of the friction pair is relatively uniform, and the reliability and the service life of the bearing are higher. The setting of the dual waterproof circle of inside and outside can prevent outside water entering bearing inside by very big degree to prevent that water and machine oil from mixing and causing the harm to the bearing, the main shaft piston ring of setting passes through piston motion and drives the elasticity chuck and implement to press from both sides tightly or loosen the work piece of centre gripping, the setting of sealing washer better improvement the waterproof sealing nature of whole main shaft, improved the life of main shaft.
Illustratively, the seal ring is an O-ring 2; the high-pressure sealing device is simple in structure, good in sealing performance, convenient and simple to install, capable of bearing sealing of fixing, reciprocating and rotating, resistant to high temperature and high pressure and capable of greatly improving the sealing performance of the main shaft.
Illustratively, the collet 12 is a rubber collet or a collet; because the chuck adopts the rubber chuck, increased the elasticity of chuck for the installation is convenient and fast more, can satisfy the work piece centre gripping of different diameters simultaneously, increases the convenience.
The utility model has the following effects: the static pressure bearing is adopted to support the spindle to rotate, the establishment of oil film pressure is not limited by the movement speed, the spindle can normally work at extremely low rotating speed and high speed, the liquid friction is small, the rotation precision is high, and the vibration resistance is good. The O-shaped sealing ring is arranged, so that the sealing performance and the waterproof capability of the whole main shaft are improved, and the service life is prolonged. Adopt the rubber chuck, increased the elasticity of chuck for the installation is convenient and fast more, can satisfy the work piece centre gripping of different diameters simultaneously, increases the convenience.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. The present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principle of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the present invention, and these changes and modifications are within the scope of the present invention as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a drive main shaft in middle of short centre gripping quick change of static pressure, includes the spindle drum, the bearing frame, preceding hydrostatic bearing, back hydrostatic bearing, main shaft cylinder body, its characterized in that: the utility model discloses a waterproof sealing device for a spindle, including main shaft seat, bearing seat, belt pulley, chuck, spindle piston ring, main shaft piston ring left side and belt pulley fixed connection, the main shaft seat right side is equipped with outer waterproof circle in the right side, the main shaft seat left side is equipped with waterproof circle in a left side, waterproof circle left side is connected with the main shaft seat lid in a left side, be equipped with the bearing frame in the main shaft seat, the bearing frame left side is provided with main shaft left cylinder body, main shaft left cylinder body left side and belt pulley fixed connection, be equipped with main shaft right cylinder body in the bearing frame, static pressure bearing, back static pressure bearing before being equipped with between bearing frame and the main shaft right cylinder body, the internal main shaft piston ring that is equipped with of main shaft, main shaft piston ring left side is equipped with left waterproof circle, belt pulley and main shaft left cylinder body, bearing frame and main shaft seat, main shaft piston ring and main shaft left cylinder body, bearing frame and right outer waterproof circle junction are equipped with the sealing washer.
2. The static pressure short-clamping quick-change intermediate drive spindle according to claim 1, characterized in that: the sealing ring is an O-shaped sealing ring.
3. The static pressure short-clamping quick-change intermediate drive spindle according to claim 1, characterized in that: the chuck is a rubber chuck or an elastic chuck.
4. The static pressure short-clamping quick-change intermediate drive spindle according to claim 1, characterized in that: the chuck clamps the maximum workpiece with the diameter of 72mm and the length of 30-80 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122915246.XU CN216656360U (en) | 2021-11-25 | 2021-11-25 | Static pressure short clamping quick-change intermediate driving main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122915246.XU CN216656360U (en) | 2021-11-25 | 2021-11-25 | Static pressure short clamping quick-change intermediate driving main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216656360U true CN216656360U (en) | 2022-06-03 |
Family
ID=81791822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122915246.XU Expired - Fee Related CN216656360U (en) | 2021-11-25 | 2021-11-25 | Static pressure short clamping quick-change intermediate driving main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216656360U (en) |
-
2021
- 2021-11-25 CN CN202122915246.XU patent/CN216656360U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220603 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |