CN201565613U - Built-in electric main spindle - Google Patents
Built-in electric main spindle Download PDFInfo
- Publication number
- CN201565613U CN201565613U CN2009202671700U CN200920267170U CN201565613U CN 201565613 U CN201565613 U CN 201565613U CN 2009202671700 U CN2009202671700 U CN 2009202671700U CN 200920267170 U CN200920267170 U CN 200920267170U CN 201565613 U CN201565613 U CN 201565613U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- main spindle
- motor
- motor stator
- fixedly installed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
A built-in electric main spindle with simple structure, rapid response speed and small occupied space comprises a main spindle box, wherein a motor is arranged in the main spindle box, the motor comprises a motor stator and a motor rotor, a motor stator jacket is fixedly installed in the main spindle box, the motor stator is fixedly installed in the motor stator jacket, a motor rotor inner sleeve is fixedly installed in the motor stator, and a main spindle is fixedly installed in the motor rotor inner sleeve. The main spindle box and the main spindle are relatively and rotatably connected through a bearing. An encoder probe is fixedly installed on the main spindle box, an encoder gear ring is fixedly installed on the main spindle, and the encoder probe corresponds to the encoder gear ring. A connecting disk is fixedly installed on the main spindle, and the encoder gear ring is fixedly installed on the connecting disk. The built-in electric main spindle integrates the motor and the main spindle into a whole, and has simple structure, rapid response speed and small occupied space.
Description
Technical field
The utility model relates to a kind of main shaft, relates in particular to a kind of concealed electric main shaft.
Background technology
Main shaft is one of key core parts indispensable on the Digit Control Machine Tool, it is the heart of Digit Control Machine Tool, based on the Purely mechanical drive mechanism, external motor passes to the main shaft of lathe to power indirectly by kinds of drive such as belt, gears, thereby realizes the spinfunction of main shaft.At present all there are defectives such as drive mechanism complexity, response speed space slow, that take lathe are big in the main axle structure that uses.
Summary of the invention
The purpose of this utility model provides that a kind of simple in structure, response speed is fast, little concealed electric main shaft takes up room.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of concealed electric main shaft, comprise the main shaft casing, in the main shaft casing motor is installed, motor comprises motor stator and rotor, it is characterized in that: be installed with the motor stator overcoat in the main shaft casing, the described motor stator of fixed installation in the motor stator overcoat is installed with cover in the rotor in the described rotor, be installed with main shaft in the cover in the rotor.
According to described concealed electric main shaft, it is characterized in that: be rotatably connected by bearing is relative between described main shaft casing and the main shaft.
According to described concealed electric main shaft, it is characterized in that: be installed with the encoder gauge head on the described main shaft casing, be installed with the encoder ring gear on the described main shaft, the encoder gauge head is corresponding with the encoder ring gear.
According to described concealed electric main shaft, it is characterized in that: be installed with terminal pad on the described main shaft, the described encoder ring gear of fixed installation on the terminal pad.
The utility model current collection machine and main shaft be in one, and be simple in structure, response speed fast, it is little to take up room.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
In the accompanying drawing:
1, main shaft casing 2, motor stator 3, motor stator overcoat 4, rotor
5, cover 6, main shaft 7, locking nut 8, encoder gauge head in the rotor
9, encoder ring gear 10, terminal pad 11, key
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further described:
A kind of concealed electric main shaft, as shown in Figure 1, comprise main shaft casing 1, in the main shaft casing 1 motor is installed, motor comprises motor stator 2 and rotor 4, leaves predetermined gap between motor stator 2 and the rotor 4, be installed with motor stator overcoat 3 in the main shaft casing 1, the described motor stator 2 of fixed installation in the motor stator overcoat 3 is installed with cover 5 in the rotor in the described rotor 4, be installed with main shaft 6 in the cover 5 in the rotor.Be rotatably connected by bearing is relative between described main shaft casing 1 and the main shaft 6.Be installed with encoder gauge head 8 on the described main shaft casing 1, be installed with encoder ring gear 9 on the described main shaft 6, encoder gauge head 8 is corresponding with encoder ring gear 9.Be installed with terminal pad 10 on the described main shaft 6, the described encoder ring gear 9 of fixed installation on the terminal pad 10.
Embodiment recited above is described preferred implementation of the present utility model; be not that design of the present utility model and scope are limited; under the prerequisite that does not break away from the utility model design concept; common engineers and technicians make the technical solution of the utility model in this area various modification and improvement; all should fall into protection domain of the present utility model; the technology contents that the utility model is asked for protection all is documented in claims.
The utility model is hidden in the inside of main shaft casing because of motor, so be referred to as concealed electric main shaft, motor is built-in motor, and the coil-winding of motor stator is the double winding form, has high low speed coil feature.For realizing speed and Position Control to main shaft, designed matching used ring gear formula separable coding device, be that the encoder gauge head separates with the encoder ring gear, encoder ring gear and main shaft are fixedly installed togather, encoder gauge head and main shaft casing are fixedly installed togather, and leave predetermined gap between encoder gauge head and the encoder ring gear; By controller motor stator is switched on, realize rotatablely moving of rotor, because of rotor and encoder ring gear all are fixedly installed on the main shaft, so the encoder ring gear also can rotate synchronously, the encoder gauge head is monitored the moving situation of encoder ring gear in real time, and information returned to controller, so just realized rotation control to main shaft.
Motor stator in the utility model is fixedly installed to motor stator by hot-mounting process and puts outward, and the motor stator overcoat is fixedly installed on the main shaft casing by screw; Rotor is fixedly installed in the rotor by hot-mounting process and puts, and cover is fixed on the main shaft by locking nut in the rotor; Be connected by bearing between main shaft casing and the main shaft and support, the encoder gauge head is installed on the main shaft casing by indirect securement, the encoder ring gear is fixedly installed on the terminal pad by hot-mounting process, terminal pad is fixed on the main shaft by key, leave certain clearance between motor stator and rotor, leave certain clearance between encoder gauge head and the encoder ring gear; Heating problem when solving coil working on the motor stator has also designed cannelure confession cooling fluid and has passed through between motor stator overcoat and main shaft casing.
The utility model is the concealed electric main shaft that a kind of machine tool chief axis is used, the motor of tradition main shaft is the outside that is placed on main spindle box body, and by modes such as belt, gears the power of motor is flowed to main shaft indirectly, the box inner structure of tradition main shaft is mechanical type, passive delivery-motor, the utility model have been broken the restriction of former traditional main axle structure, take full advantage of the space of main spindle box body inside, can realize the zero back clearance of transmission mechanism, have quick response, save the advantages such as space, low noise.
The utility model also is beneficial to the simplification machine tool structure except possessing the advantage that traditional main shaft can't realize, each unit can be assembled separately and change, and cost is low, failure rate is low, easy care.
Claims (4)
1. concealed electric main shaft, comprise main shaft casing (1), the main shaft casing is equipped with motor in (1), motor comprises motor stator (2) and rotor (4), it is characterized in that: be installed with motor stator overcoat (3) in the main shaft casing (1), fixed installation described motor stator (2) in the motor stator overcoat (3) is installed with cover (5) in the rotor in the described rotor (4), be installed with main shaft (6) in the cover (5) in the rotor.
2. concealed electric main shaft according to claim 1 is characterized in that: be rotatably connected by bearing is relative between described main shaft casing (1) and the main shaft (6).
3. concealed electric main shaft according to claim 1 and 2, it is characterized in that: be installed with encoder gauge head (8) on the described main shaft casing (1), be installed with encoder ring gear (9) on the described main shaft (6), encoder gauge head (8) is corresponding with encoder ring gear (9).
4. concealed electric main shaft according to claim 3 is characterized in that: be installed with terminal pad (10) on the described main shaft (6), terminal pad (10) is gone up fixed installation described encoder ring gear (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202671700U CN201565613U (en) | 2009-11-17 | 2009-11-17 | Built-in electric main spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202671700U CN201565613U (en) | 2009-11-17 | 2009-11-17 | Built-in electric main spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201565613U true CN201565613U (en) | 2010-09-01 |
Family
ID=42657895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202671700U Expired - Fee Related CN201565613U (en) | 2009-11-17 | 2009-11-17 | Built-in electric main spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201565613U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744428A (en) * | 2012-07-12 | 2012-10-24 | 浙江日发数码精密机械股份有限公司 | Air cooling electric spindle device for precision numerical control lathe |
-
2009
- 2009-11-17 CN CN2009202671700U patent/CN201565613U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744428A (en) * | 2012-07-12 | 2012-10-24 | 浙江日发数码精密机械股份有限公司 | Air cooling electric spindle device for precision numerical control lathe |
| CN102744428B (en) * | 2012-07-12 | 2015-02-04 | 浙江日发精密机械股份有限公司 | Air cooling electric spindle device for precision numerical control lathe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20111117 |