CN203542348U - Axial movement-type dynamic and hydrostatic electric main shaft - Google Patents
Axial movement-type dynamic and hydrostatic electric main shaft Download PDFInfo
- Publication number
- CN203542348U CN203542348U CN201320600769.8U CN201320600769U CN203542348U CN 203542348 U CN203542348 U CN 203542348U CN 201320600769 U CN201320600769 U CN 201320600769U CN 203542348 U CN203542348 U CN 203542348U
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- main shaft
- bearing
- rear bearing
- motor stator
- axial movement
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Abstract
The utility model provides an axial movement-type dynamic and hydrostatic electric main shaft, which comprises a main shaft, a shell, a front bearing, a rear bearing, a motor stator and a motor rotor. The shell comprises a front bearing housing and a rear bearing housing; the front bearing is arranged in the front bearing housing; the rear bearing is arranged in the rear bearing housing; the front end of the main shaft is supported in the front bearing; the rear end of the main shaft is supported in the rear bearing; the motor stator and the motor rotor are arranged in the rear bearing housing; a rotating connector is formed in the front end of the main shaft; another rotating connector is formed in the rear end of the main shaft. Not only can high-speed operation be realized but also the axial movement of the main shaft can be realized; the rotating speed and the precision are higher. The shell is made into a split-type structure, so that the motor stator is convenient to install, position, disassemble and maintain. A disassembly and assembly process simplified; the assembly and the maintenance are very convenient and rapid; the production cycle and the maintenance time are shortened, and the production efficiency is helped to be improved.
Description
Technical field
The utility model relates to electric main shaft, especially relates to a kind of axially-movable formula dynamic/static piezoelectric main shaft.
Background technology
The high speed and precision processing that high cutting speed, high feed speed, high manufacturing accuracy be principal character of take is one of four large advanced manufacturing technologies in the present age, is a new and high technology that makes manufacturing technology generation second revolution leap continue Numeric Control Technology after.High speed and precision machining tool not only has high production efficiency, and can improve significantly machining accuracy and the surface quality of part.The electric main shaft of high-speed precise machine tool is as Core Feature parts, and the height of its performance directly has influence on the overall development level of high speed and precision machining tool.Electricity main shaft is a kind of high-tech product that directly depends on the height electromechanical integration of the technology such as bearing technology, accurate manufacture and assembling.Its feature is, the function of motor and machine tool chief axis function are combined together from structure, has saved complicated intermediate transmission link, have speed-regulating range width, rotary inertia little, can quick start and stop, be easy to realize the advantages such as stepless speed regulation and accurate control.Along with the develop rapidly of modern manufacturing industry to high-speed, high accuracy, high efficiency direction, more and more higher to the performance requirement of For Spindle Unit of Machine Tool, electric main shaft just progressively replaces traditional belt driven type mechanical main shaft, becomes the main flow structure of modern machine main shaft.
The high-precision grinder adopting in engineering at present and the main shaft of slideway grinder are mainly rolling bearing electricity main shafts, and rolling main shaft electricity main shaft exists following shortcoming: the one, and physical dimension is large, is unfavorable for machine tool structure densification; The 2nd, because weight is large, interpolation low-response, outline-shaped face machining accuracy is difficult to guarantee; The 3rd, easily cause load unbalance loading, unbalance loading load easily causes that shaft strength situation is poor, bearing temperature rise raises, and is unfavorable for raising speed and precision; The 4th, bearing is short service life, and ground effect is poor, is subject to certain limitation during use.
Utility model content
The utility model object is for the existing above-mentioned technical problem of prior art, and a kind of axially-movable formula dynamic/static piezoelectric main shaft is provided.
Realize above-mentioned purpose, the utility model proposes a kind of axially-movable formula dynamic/static piezoelectric main shaft is provided, comprise main shaft, housing, fore bearing, rear bearing, motor stator and rotor, described housing comprises front-end bearing pedestal and rear bearing block, described fore bearing is arranged in front-end bearing pedestal, rear bearing is arranged in rear bearing block, the front end of main shaft is supported in fore bearing, the rear end of main shaft is supported in rear bearing, described motor stator and rotor are arranged in rear bearing block, the front end of described main shaft is provided with rotatable interface, and the rear end of described main shaft is provided with rotatable interface.
As preferably, described fore bearing and rear bearing are dynamic/static piezoelectric bearing.
As preferably, described front-end of spindle is provided with sealing device.
As preferably, described housing both sides are provided with hold-down support.
Compared with prior art, the utility model adopts built-in type hybrid motor spindle structure, has following obviously advantage: the one, and main shaft two ends are equipped with rotatable interface, and both can having realized runs up also can realize main shaft axially-movable; The 2nd, weight reduces, and system response time is very fast, and workpiece profile machining accuracy is higher; The 3rd, physical dimension reduces, and is conducive to the layout of machine tool headstock and tailstock, owing to can avoiding easily rear motor in process to interfere with tailstock or workpiece, can improve the size range of the processing work of lathe, reduces machine tool structure size; The 4th, shaft strength situation is obviously improved, and temperature rise obviously reduces, and rotating speed and precision are higher.The 5th, housing is made split-type structure, makes installation, location and the detachable maintaining of motor stator convenient.Simplified disassembly process, assembled and keeped in repair very convenient quick, shortened production cycle and maintenance time, be conducive to enhance productivity.
Accompanying drawing explanation
Fig. 1 is the structure chart of a kind of axially-movable formula dynamic/static piezoelectric main shaft described in the utility model.
The specific embodiment
Feature of the present utility model and advantage will be elaborated by reference to the accompanying drawings by embodiment.
As shown in Figure 1, a kind of axially-movable formula dynamic/static piezoelectric main shaft, comprise main shaft 1, housing 2, fore bearing 3, rear bearing 4, motor stator 5 and rotor 6, described housing 2 comprises front-end bearing pedestal 21 and rear bearing block 22, described fore bearing 3 is arranged in front-end bearing pedestal 21, rear bearing 4 is arranged in rear bearing block 22, the front end of main shaft 1 is supported in fore bearing 3, the rear end of main shaft 1 is supported in rear bearing 4, described motor stator 5 and rotor 6 are arranged in rear bearing block 22, the front end of described main shaft 1 is provided with rotatable interface 7, the rear end of described main shaft 1 is provided with rotatable interface 7.Described fore bearing 3 and rear bearing 4 are dynamic/static piezoelectric bearing, and the front end of described main shaft 1 is provided with sealing device 8, and described housing 2 both sides are provided with hold-down support 9.
Operation principle of the present utility model is: the utility model has two kinds of rotation modes: the one, can be by the rotatable interface 7 of main shaft 1 rear end is connected on motor, thus drive main shaft 1 rotation; The 2nd, by the operation of the interior motor stator 5 of housing 2 and electronics rotor 6, thereby drive main shaft 1 rotation.
Specific embodiment described herein is only to the explanation for example of the utility model structure.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (4)
1. an axially-movable formula dynamic/static piezoelectric main shaft, comprise main shaft, housing, fore bearing, rear bearing, motor stator and rotor, it is characterized in that: described housing comprises front-end bearing pedestal and rear bearing block, described fore bearing is arranged in front-end bearing pedestal, rear bearing is arranged in rear bearing block, the front end of main shaft is supported in fore bearing, the rear end of main shaft is supported in rear bearing, described motor stator and rotor are arranged in rear bearing block, the front end of described main shaft is provided with rotatable interface, and the rear end of described main shaft is provided with rotatable interface.
2. a kind of axially-movable formula dynamic/static piezoelectric main shaft as claimed in claim 1, is characterized in that: described fore bearing and rear bearing are dynamic/static piezoelectric bearing.
3. a kind of axially-movable formula dynamic/static piezoelectric main shaft as claimed in claim 1, is characterized in that: described front-end of spindle is provided with sealing device.
4. a kind of axially-movable formula dynamic/static piezoelectric main shaft as claimed in claim 1, is characterized in that: described housing both sides are provided with hold-down support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320600769.8U CN203542348U (en) | 2013-09-27 | 2013-09-27 | Axial movement-type dynamic and hydrostatic electric main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320600769.8U CN203542348U (en) | 2013-09-27 | 2013-09-27 | Axial movement-type dynamic and hydrostatic electric main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203542348U true CN203542348U (en) | 2014-04-16 |
Family
ID=50460515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320600769.8U Expired - Fee Related CN203542348U (en) | 2013-09-27 | 2013-09-27 | Axial movement-type dynamic and hydrostatic electric main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203542348U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110270880A (en) * | 2019-07-09 | 2019-09-24 | 浙江合丰数控机床有限公司 | Main shaft cooling device for numerically controlled lathe |
-
2013
- 2013-09-27 CN CN201320600769.8U patent/CN203542348U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110270880A (en) * | 2019-07-09 | 2019-09-24 | 浙江合丰数控机床有限公司 | Main shaft cooling device for numerically controlled lathe |
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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: 20140416 Termination date: 20150927 |
|
| EXPY | Termination of patent right or utility model |