CN201618856U - Ultra-high-speed precise pneumatic micro-spindle - Google Patents
Ultra-high-speed precise pneumatic micro-spindle Download PDFInfo
- Publication number
- CN201618856U CN201618856U CN2010201223428U CN201020122342U CN201618856U CN 201618856 U CN201618856 U CN 201618856U CN 2010201223428 U CN2010201223428 U CN 2010201223428U CN 201020122342 U CN201020122342 U CN 201020122342U CN 201618856 U CN201618856 U CN 201618856U
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- China
- Prior art keywords
- gas bearing
- spindle
- end gas
- bearing
- rear end
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Abstract
The utility discloses an ultra-high-speed precise pneumatic micro-spindle comprising a spindle, a turbine, a front-end gas bearing, a rear-end gas bearing and a tank body, wherein the front end of the spindle passes through the front-end gas bearing, and the rear end thereof passes through the rear-end gas bearing and is arranged in a shaft hole of the tank body in a supporting manner; the tank body is provided with a rear cover and used for installing an eddy current sensor; a worm wheel chamber is arranged between the front-end gas bearing and the rear-end gas bearing; the worm wheel is arranged on the spindle and positioned in the worm wheel chamber; and the front-end gas bearing and the rear-end gas bearing respectively comprise at least one static-pressure gas radial bearing and a static-pressure gas thrust bearing. The ultra-high-speed precise pneumatic micro-spindle has reasonable structure, simple manufacture technique, fast rotating speed and small jumping error, can meet the requirements of a manufacturing industry on ultrahigh rotating speed and low jumping error micro-spindle, is applicable to the industrial production, and can be taken as a micro-spindle of a superfine cutting machining machine tool and a micro-shaft of other ultra-high-speed and high-accuracy rotary moving electromechanical equipment or a manual tool machine.
Description
Technical field
The utility model discloses a kind of ultrahigh speed precise pneumatic micro spindle, belong to machinery manufacturing technology field.
Background technology
The miniaturization of part and the high precision int of size have proposed more and more higher requirement to its process equipment.And the maximum speed that is used for little electric main shaft of miniature lathe or hand tool at present generally is no more than 300000rpm, and along with the raising of rotating speed, caloric value constantly increases, and causes spindle deformation, has a strong impact on the crudy of part.In addition, existing pneumatic micro spindle rotating speed is not high, and a little less than the bearing capacity, rigidity is low, and runout error is big, is difficult to satisfy micro part carried out fine machining requirements such as high speed/ultrahigh speed is littlely milled, little brill, little mill.
The utility model content
The purpose of this utility model is to overcome existing deficiency and a kind of rational in infrastructure, manufacturing process is simple, rotating speed is high, runout error is little ultrahigh speed precise pneumatic micro spindle is provided, to satisfy the demand of manufacturing industry to ultrahigh rotating speed, the low little main shaft of runout error.
For achieving the above object, the utility model adopts following technical scheme:
Ultrahigh speed precise pneumatic micro spindle, comprise: main shaft, turbine, front end gas bearing, rear end gas bearing, casing, described front-end of spindle is installed in the axis hole of described casing by the supporting of described rear end gas bearing by described front end gas bearing, rear end, and described casing is equipped with bonnet; Be provided with turbine room between described front end gas bearing and described rear end gas bearing, described turbine is arranged on the described main shaft and is in the described turbine room; Described front end gas bearing, described rear end gas bearing are made up of at least one pressurized air journal bearing and a pressurized air thrust bearing respectively.
In the utility model, described main shaft and turbine are made as one.
In the utility model, described front-end of spindle is provided with axial hole, and described rear-end of spindle face is arranged with two holes or groove along described main-shaft axis.
In the utility model, on the described bonnet current vortex sensor is installed, its installation site is corresponding with hole or groove position that described rear-end of spindle face is provided with.
In the utility model, be respectively equipped with the air inlet of the described front end gas bearing and the air inlet of rear end gas bearing, described turbine room and the exhaust outlet of described rear end gas bearing on the described casing.
In the utility model, the bonnet of described casing is provided with the air discharge duct of described turbine room.
The utility model is owing to adopt said structure, utilize the turbine room air discharge duct that is provided with on the turbine room air inlet that is provided with on the casing, the bonnet to realize high-speed driving to turbine spindle, the bearing pair that utilizes pressurized air journal bearing and pressurized air thrust bearing to constitute supports the location respectively at front-end of spindle, rear-end of spindle to main shaft, frictional dissipation and runout error in the time of can effectively reducing described main shaft high speed rotating; Two holes that utilization is installed in that current vortex sensor on the bonnet and rear-end of spindle face be provided with or groove are realized the real-time measurement to the speed of mainshaft, and the axial hole clamping cutter that utilizes the front-end of spindle center to be provided with is realized the processing to workpiece.In sum, the utility model is rational in infrastructure, manufacturing process is simple, rotating speed is high, runout error is little, can satisfy the demand of manufacturing industry to ultrahigh rotating speed, the low little main shaft of runout error, be suitable for suitability for industrialized production, can be used as little main shaft and other electromechanical equipment of doing high speed and ultrahigh speed, high-precision rotary motion or the little axle on the hand tool of fine machining lathe.
Description of drawings
Fig. 1 is the main cutaway view of the utility model embodiment.
Fig. 2 is the A-A cutaway view of Fig. 1.
Among the figure: 1--current vortex sensor, 2--bonnet, 3--rear end gas bearing, 4--casing, 5--turbine room, 6--gas bearing air inlet, 7--front end gas bearing, 8--turbine, 9--main shaft, the 10--axial hole, 11--air discharge duct, 12--hole or groove, 13--turbine room air inlet
The specific embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is elaborated:
Referring to accompanying drawing, the utility model ultrahigh speed precise pneumatic micro spindle, comprise: main shaft 9, turbine 8, front end gas bearing 7, rear end gas bearing 3, casing 4, described main shaft 9 front end centers are provided with axial hole 10, and described main shaft 9 rear end faces are arranged with two holes or groove 12 along described main shaft 9 axis; Described casing 4 is equipped with bonnet 2, on the described bonnet 2 current vortex sensor 1 is installed, and its installation site is corresponding with two holes that are provided with described main shaft 11 rear end faces or groove 12 positions; Described main shaft 9 front ends are installed in the axis hole of described casing 4 by 3 supportings of described rear end gas bearing by described front end gas bearing 7, rear end; Between described front end gas bearing 7 and rear end gas bearing 3, be provided with turbine room 5; Be respectively equipped with air inlet 6 and the air inlet 13 of described turbine room 5 and the exhaust outlet of described rear end gas bearing 3 of described front end gas bearing 7, rear end gas bearing 3 on the described casing 4; The bonnet 2 of described casing 4 is provided with the air discharge duct 11 of described turbine room 5; Described turbine 8 is arranged on the described main shaft 9 and is in the described turbine room 5; Described front end gas bearing 7, described rear end gas bearing 3 are made up of a pressurized air journal bearing and a pressurized air thrust bearing respectively.
In the present embodiment, described main shaft 9 is made as one with turbine 8.
Operation principle of the present utility model is sketched in down: source of the gas enters rear end gas bearing 3 drive shaft rear end pressurized air journal bearings and rear-end of spindle pressurized air thrust bearing and enters front end gas bearing drive shaft front end pressurized air journal bearing and pressurized air thrust bearing supports the location to main shaft, frictional dissipation and runout error in the time of can effectively reducing the main shaft high speed rotating through air inlet 6; Source of the gas enters turbine room 5 through 2 air inlets 13, and promote turbine spindle and rotate at a high speed, and then the cutter of axial hole 10 clampings of drive shaft front end center setting, realize processing to workpiece.
Claims (6)
1. ultrahigh speed precise pneumatic micro spindle, comprise: main shaft, turbine, front end gas bearing, rear end gas bearing, casing, it is characterized in that: described front-end of spindle is installed in the axis hole of described casing by the supporting of described rear end gas bearing by described front end gas bearing, rear end, and described casing is equipped with bonnet; Be provided with turbine room between described front end gas bearing and rear end gas bearing, described turbine is arranged on the described main shaft and is in the described turbine room; Described front end gas bearing, described rear end gas bearing are made up of at least one pressurized air journal bearing and a pressurized air thrust bearing respectively.
2. ultrahigh speed precise pneumatic micro spindle according to claim 1 is characterized in that: described main shaft and turbine are made one.
3. ultrahigh speed precise pneumatic micro spindle according to claim 2 is characterized in that: described front-end of spindle is provided with axial hole, and described rear-end of spindle face is arranged with two holes or groove along described main-shaft axis.
4. ultrahigh speed precise pneumatic micro spindle according to claim 3 is characterized in that: on the described bonnet current vortex sensor is installed, its installation site is corresponding with hole or groove position that described rear-end of spindle face is provided with.
5. ultrahigh speed precise pneumatic micro spindle according to claim 4 is characterized in that: be respectively equipped with the air inlet of the described front end gas bearing and the air inlet of rear end gas bearing, described turbine room and the exhaust outlet of described rear end gas bearing on the described casing.
6. ultrahigh speed precise pneumatic micro spindle according to claim 5 is characterized in that: the bonnet of described casing is provided with the air discharge duct of described turbine room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201223428U CN201618856U (en) | 2010-03-03 | 2010-03-03 | Ultra-high-speed precise pneumatic micro-spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201223428U CN201618856U (en) | 2010-03-03 | 2010-03-03 | Ultra-high-speed precise pneumatic micro-spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201618856U true CN201618856U (en) | 2010-11-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201223428U Expired - Fee Related CN201618856U (en) | 2010-03-03 | 2010-03-03 | Ultra-high-speed precise pneumatic micro-spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201618856U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433513A (en) * | 2013-08-12 | 2013-12-11 | 太仓斯普宁精密机械有限公司 | Pneumatic liquid cooling spindle box |
| CN106424771A (en) * | 2016-11-30 | 2017-02-22 | 湖南大学 | Micro spindle for fine machining |
-
2010
- 2010-03-03 CN CN2010201223428U patent/CN201618856U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433513A (en) * | 2013-08-12 | 2013-12-11 | 太仓斯普宁精密机械有限公司 | Pneumatic liquid cooling spindle box |
| CN106424771A (en) * | 2016-11-30 | 2017-02-22 | 湖南大学 | Micro spindle for fine machining |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101103 Termination date: 20150303 |
|
| EXPY | Termination of patent right or utility model |