CN205599931U - Rear -mounted disk electricity main shaft structure - Google Patents
Rear -mounted disk electricity main shaft structure Download PDFInfo
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- CN205599931U CN205599931U CN201620294055.2U CN201620294055U CN205599931U CN 205599931 U CN205599931 U CN 205599931U CN 201620294055 U CN201620294055 U CN 201620294055U CN 205599931 U CN205599931 U CN 205599931U
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Abstract
The utility model discloses a rear -mounted disk electricity main shaft structure, including box, main shaft, bearing, motor and ring flange, axle contracting draws together fore bearing and rear bearing, and the motor adopts the disk type motor of flat structure, the main shaft suit the rear side of box and the main shaft adopts fore bearing and rear bearing to fix in the box, the motor is installed on the main shaft stretches out the part of box and the motor passes through the flange coils and be connected with the rear side of box, is provided with power line interface and encoder interface on the motor. This structure adopts the flat disk type motor of cavity formula and the motor is installed at the box rear side, and generating heat of motor can not influence the precision of main shaft, can shorten the atress that the main shaft stretches out the rear bearing of side moreover, increases the life of rear bearing, has shortened the holistic length of box, the motor passes through the encoder interface and links to each other with accurate encoder, can realize accurate rotational speed, position and torque control, be provided with air intake and air outlet on the device's the motor, the forced -air cooling heat dissipation of being convenient for.
Description
Technical field
This utility model relates to a kind of electric main shaft structure, a kind of rear-mounted disc type electric main shaft structure.
Background technology
Electro spindle is technology machine tool chief axis and spindle motor being fused into one, and is the core component of Digit Control Machine Tool, and it saves belt wheel or gear drive, it is achieved " Zero-drive Chain " of lathe, improves machine finish.Modular design, it is simple to the structure design of lathe, is currently the trend of main flow, and all the time, electro spindle is all to be placed in the middle of main shaft (between front and back bearings) by the rotor of motor, also referred to as concealed electric main shaft.Concealed electric main shaft there is problems in that first, and the rotor of electro spindle, inside main shaft, is a pyrotoxin, and heat radiation is a problem the biggest, controls bad meeting and brings thermal deformation, has a strong impact on the machining accuracy of lathe, causes the life-span of electro spindle to decline；Second, owing to rotor portion is arranged at front and back end bearing, cause structure complicated, the rigidity of main shaft declines；3rd, electro spindle dismounting complexity；4th, the size of electro spindle is bigger than mechanical main shaft overall dimensions, it is impossible to be interchangeable with mechanical main shaft, causes needing when using electro spindle to redesign main spindle box body.
Summary of the invention
The purpose of this utility model is to provide a kind of rear-mounted disc type electric main shaft structure, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the following technical scheme of this utility model offer:
A kind of rear-mounted disc type electric main shaft structure, including casing, main shaft, bearing, motor and ring flange, described bearing includes fore bearing and rear bearing, motor uses the disc type electric machine of flat structure, spindle set uses fore bearing and rear bearing to be fixed in casing at rear side and the main shaft of casing, motor is arranged on main shaft and stretches out in the part of casing and motor is connected with the rear side of casing by ring flange, and motor is provided with power line connector and encoder interfaces.
As further program of the utility model: be provided with air inlet and air outlet on motor.
As further program of the utility model: motor is that the quantity of hollow structure, fore bearing and rear bearing is two.
Compared with prior art, the beneficial effects of the utility model are: this reasonable in design, simple in construction, and detachability is good, it is simple to installs and changes；Failure rate is low, good operation stability, this structure uses the flat disc type electric machine of hollow type and motor to be arranged on rear side of casing, the heating of motor does not interferes with the precision of main shaft, and the stress of the rear bearing of main shaft protruding side can be shortened, increase the service life of rear bearing, shorten the length that casing is overall；Motor is connected with precision encoder by encoder interfaces, it is possible to achieve accurate rotating speed, position and direct torque；Air inlet and air outlet it is provided with, it is simple to wind-cooling heat dissipating on the motor of this device.
Accompanying drawing explanation
Fig. 1 is the structural representation of rear-mounted disc type electric main shaft structure.
Wherein: 1-casing, 2-main shaft, 3-fore bearing, 4-rear bearing, 5-air inlet, 6-power line connector, 7-encoder interfaces, 8-motor, 9-air outlet, 10-ring flange.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the technical scheme of this patent is described in more detail.
Refer to Fig. 1, a kind of rear-mounted disc type electric main shaft structure, including casing 1, main shaft 2, bearing, motor 8 and ring flange 10, described bearing includes fore bearing 3 and rear bearing 4, motor 8 uses the disc type electric machine of flat structure, main shaft 2 is sleeved on the rear side of casing 1 and main shaft 2 uses fore bearing 3 and rear bearing 4 to be fixed in casing 1, motor 8 is arranged on main shaft 2 and stretches out in the part of casing 1 and motor 8 is connected with the rear side of casing 1 by ring flange 10, and motor 8 is provided with power line connector 6 and encoder interfaces 7.Air inlet 5 and air outlet 9 it is provided with on motor 8.Motor 8 is hollow structure, and the quantity of fore bearing 3 and rear bearing 4 is two.
Operation principle of the present utility model is: motor 8 is hollow structure, integral assembling in after on the main shaft 2 that stretches out, motor 8 uses ring flange 10 to be connected with the rear side of casing 1, motor 8 generate heat the impact for main shaft 2 precision almost without；Motor 8 uses flat structure to design, effective rear bearing 4 stress shortening main shaft 2 protruding side, increases the service life of rear bearing 4, shortens the length of casing 1 entirety.After disc type electric spindle motor 8 energising, drive shaft 2 operates, and disc type electric machine 8 is connected with precision encoder by encoder interfaces 7, it is possible to achieve accurate rotating speed, position and direct torque.Motor 8 is designed with air inlet 5 and air outlet 9, for wind-cooling heat dissipating.This reasonable in design, simple in construction, detachability is good, it is simple to installs and changes；Failure rate is low, good operation stability, this structure uses the flat disc type electric machine of hollow type 8 and motor 8 to be arranged on rear side of casing 1, the heating of motor 8 does not interferes with the precision of main shaft 2, and the stress of the rear bearing 4 of main shaft 2 protruding side can be shortened, increase the service life of rear bearing 4, shorten the length of casing 1 entirety；Motor 8 is connected with precision encoder by encoder interfaces 7, it is possible to achieve accurate rotating speed, position and direct torque；Air inlet 5 and air outlet 9 it is provided with, it is simple to wind-cooling heat dissipating on the motor 8 of this device.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art is possessed, it is also possible to various changes can be made on the premise of without departing from this patent objective.
Claims (3)
1. a rear-mounted disc type electric main shaft structure, it is characterized in that, including casing, main shaft, bearing, motor and ring flange, described bearing includes fore bearing and rear bearing, motor uses the disc type electric machine of flat structure, spindle set uses fore bearing and rear bearing to be fixed in casing at the rear side of casing and main shaft, and motor is arranged on main shaft and stretches out in the part of casing and motor is connected with the rear side of casing by ring flange, and motor is provided with power line connector and encoder interfaces.
Rear-mounted disc type electric main shaft structure the most according to claim 1, it is characterised in that be provided with air inlet and air outlet on described motor.
Rear-mounted disc type electric main shaft structure the most according to claim 1 and 2, it is characterised in that described motor is that the quantity of hollow structure, fore bearing and rear bearing is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620294055.2U CN205599931U (en) | 2016-04-11 | 2016-04-11 | Rear -mounted disk electricity main shaft structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620294055.2U CN205599931U (en) | 2016-04-11 | 2016-04-11 | Rear -mounted disk electricity main shaft structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205599931U true CN205599931U (en) | 2016-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620294055.2U Active CN205599931U (en) | 2016-04-11 | 2016-04-11 | Rear -mounted disk electricity main shaft structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN205599931U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245419A (en) * | 2018-10-10 | 2019-01-18 | 东莞司母戊精密科技有限公司 | A kind of tail placing type electric main shaft structure with brake function |
| CN109530731A (en) * | 2018-12-29 | 2019-03-29 | 东莞司母戊精密科技有限公司 | A kind of electro spindle |
-
2016
- 2016-04-11 CN CN201620294055.2U patent/CN205599931U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245419A (en) * | 2018-10-10 | 2019-01-18 | 东莞司母戊精密科技有限公司 | A kind of tail placing type electric main shaft structure with brake function |
| CN109245419B (en) * | 2018-10-10 | 2023-12-12 | 司母戊精密科技(浙江)有限公司 | Tail-mounted electric spindle structure with braking function |
| CN109530731A (en) * | 2018-12-29 | 2019-03-29 | 东莞司母戊精密科技有限公司 | A kind of electro spindle |
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