CN210755212U - Electric spindle with adjustable length - Google Patents
Electric spindle with adjustable length Download PDFInfo
- Publication number
- CN210755212U CN210755212U CN201921647154.4U CN201921647154U CN210755212U CN 210755212 U CN210755212 U CN 210755212U CN 201921647154 U CN201921647154 U CN 201921647154U CN 210755212 U CN210755212 U CN 210755212U
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- main shaft
- fixedly connected
- motor rotor
- dog
- threaded rod
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses an electricity main shaft of adjustable length, including main shaft and electric motor rotor, the adjustment tank has been seted up in the electric motor rotor, the one end fixedly connected with connecting axle of main shaft, a plurality of first dog of fixedly connected with on the connecting axle, every equal fixedly connected with threaded rod on the first dog, threaded connection has the dog on the threaded rod, be equipped with stop gear in the adjustment tank, be equipped with the reinforcing thread bush on the main shaft, the last fixedly connected with fixed block of electric motor rotor, the embedded groove has been seted up in the fixed block, fixedly connected with elastic gasket in the embedded groove. The utility model discloses the flexible volume of connecting axle can be changed to the adjustment dog before the installation in the position of threaded rod to change the extension length of main shaft, convenient to use, the mating reaction of second dog and threaded rod, can provide sufficient moment of torsion for the main shaft when making electric motor rotor rotate, guaranteed the rotational stability of main shaft.
Description
Technical Field
The utility model relates to an electricity main shaft technical field especially relates to an electricity main shaft of adjustable length.
Background
With the rapid development and the gradual improvement of electric transmission technologies (frequency conversion speed regulation technology, motor vector control technology and the like), the mechanical structure of a main transmission system of a high-speed numerical control machine tool is greatly simplified, and belt wheel transmission and gear transmission are basically cancelled. The machine tool spindle is directly driven by a built-in motor, and the electric spindle is a new technology which integrates the machine tool spindle and a spindle motor into a whole and appears in the field of numerical control machines.
The length of the existing electric spindle can not be adjusted after the existing electric spindle is fixedly connected with a motor rotor of a driving motor, when the length of the spindle can not meet the production requirement, the spindle with different lengths needs to be replaced for adaptation, and the production cost is improved.
Disclosure of Invention
The utility model aims at solving among the prior art "electric main shaft and carrying out the unable regulation of fixed connection back length with driving motor electric motor rotor, when main shaft length can't satisfy the production demand, the main shaft that needs to change different length adapts to, has improved manufacturing cost"'s defect to but provide a length-adjusting's electric main shaft.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an electric main shaft of adjustable length, includes main shaft and electric motor rotor, the adjustment tank has been seted up in the electric motor rotor, the one end fixedly connected with connecting axle of main shaft, a plurality of first dog of fixedly connected with on the connecting axle, every equal fixedly connected with threaded rod on the first dog, threaded connection has the dog on the threaded rod, be equipped with stop gear in the adjustment tank, be equipped with the reinforcing thread bush on the main shaft, the last fixedly connected with fixed block of electric motor rotor.
Preferably, stop gear includes a plurality of second gear, every the equal fixed connection of second gear is on the inner wall of adjustment tank, and is a plurality of the second gear is annular array distribution, every the through-hole has all been seted up on the second gear.
Preferably, the main shaft is provided with a first external thread, the motor rotor is provided with a second external thread, and the first external thread and the second external thread are matched with the reinforcing thread sleeve.
Preferably, an embedded groove is formed in the fixing block, and an elastic gasket is fixedly connected in the embedded groove.
Preferably, the fixing block is annularly arranged.
Compared with the prior art, the beneficial effects of the utility model are that:
the first retaining head and the second retaining head are staggered by rotating the connecting shaft to a certain angle and then extend into the adjusting groove, then the connecting shaft is rotated again to enable the first retaining head and the second retaining head to correspond to each other, the threaded rod passes through the through hole, the stop block is abutted against the second stop head, then the reinforcing thread sleeve is rotated to enable the reinforcing thread sleeve to slowly abut into the fixed block under the action of the first external thread and the second external thread, the elastic gasket is pressed tightly, the elastic gasket gives the enhanced thread sleeve with rebound force to increase thread matching friction force, the installation of the main shaft and the motor rotor is completed, a user can change the expansion amount of the connecting shaft only by adjusting the position of the stop dog on the threaded rod before the installation, thereby changing the extension length of the main shaft, being convenient to use, and the cooperation effect of the second stop head and the threaded rod, the motor rotor can provide enough torque for the main shaft when rotating, and the rotation stability of the main shaft is ensured.
Drawings
Fig. 1 is a schematic front structural view of an electric spindle with adjustable length according to the present invention;
fig. 2 is the utility model provides an adjustable length's electric spindle in electric motor rotor side structure inside view.
Fig. 3 is an enlarged schematic view of a portion a of fig. 1.
In the figure: 1-main shaft, 2-reinforcing thread bushing, 3-motor rotor, 4-fixed block, 5-elastic gasket, 6-adjusting groove, 7-connecting shaft, 8-first external thread, 9-first retaining head, 10-threaded rod, 11-retaining block, 12-second retaining head, 13-through hole and 14-second external thread.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-3, a length-adjustable electric spindle comprises a spindle 1 and a motor rotor 3, an adjusting groove 6 is formed in the motor rotor 3, a connecting shaft 7 is fixedly connected to one end of the spindle 1, a plurality of first stoppers 9 are fixedly connected to the connecting shaft 7, a threaded rod 10 is fixedly connected to each first stopper 9, a stopper 11 is connected to the threaded rod 10 in a threaded manner, a limiting mechanism is arranged in the adjusting groove 6 and comprises a plurality of second stoppers 12, each second stopper 12 is fixedly connected to the inner wall of the adjusting groove 6, the plurality of second stoppers 12 are distributed in an annular array, a through hole 13 is formed in each second stopper 12, the threaded rod 10 on the first stopper 9 passes through the through hole 13, so that the stopper 11 abuts against the second stopper 12 to determine the telescopic length of the connecting shaft 7 in the adjusting groove 6, when the position of the stopper 11 on the stopper 10 is changed, the extension and contraction amount of the connecting shaft 7 can be changed, and the extension length of the machine main shaft 1 is changed, so that the purpose of adjusting the length of the main shaft is achieved.
Be equipped with on main shaft 1 and strengthen thread bush 2, first external screw thread 8 has been seted up to main shaft 1, be equipped with second external screw thread 14 on electric motor rotor 3, first external screw thread 8 all cooperatees with strengthen thread bush 2 with second external screw thread 14, accomplish main shaft 1 through strengthen thread bush 2 and be connected with electric motor rotor 3's the outside, prevent main shaft 1's skew, fixedly connected with fixed block 4 on electric motor rotor 3, fixed block 4 is the annular setting, the embedded groove has been seted up in the fixed block 4, fixedly connected with elastic gasket 5 in the embedded groove, when elastic gasket 5 supports the elastic gasket 5 in the tight embedded groove, elastic gasket 5 increases screw-thread fit frictional force for 2 bounce increases of strengthen thread bush, prevent 2 drops of strengthen thread bush.
In the utility model, when a user uses the device, the connecting shaft 7 is rotated to a certain angle to stagger the first retaining head 9 and the second retaining head 12, then the first retaining head 9 and the second retaining head 12 extend into the adjusting groove 6, then the connecting shaft 7 is rotated again to correspond the first retaining head 9 and the second retaining head 12, the threaded rod 10 passes through the through hole 13 to enable the retaining block 11 to be abutted against the second retaining head 12, then the reinforcing thread bush 2 is rotated to enable the reinforcing thread bush 2 to be slowly abutted into the fixed block 4 under the action of the first external thread 8 and the second external thread 14, the elastic gasket 5 is compressed, the elastic gasket 5 gives the reinforcing thread bush 2 resilience to increase the thread fit friction force, the installation of the main shaft 1 and the motor rotor 3 is completed, the user only needs to adjust the position of the retaining block 11 on the threaded rod 10 before the installation to change the telescopic amount of the connecting shaft 7, thereby changing the extension length of the main, convenient to use, second dog 12 and threaded rod 10's mating reaction for motor rotor 3 can provide sufficient moment of torsion for main shaft 1 when rotating, has guaranteed the rotational stability of main shaft 1.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides an electric main shaft of adjustable length, includes main shaft (1) and electric motor rotor (3), its characterized in that, adjustment tank (6) have been seted up in electric motor rotor (3), one end fixedly connected with connecting axle (7) of main shaft (1), a plurality of first dog (9) of fixedly connected with are gone up in connecting axle (7), every equal fixedly connected with threaded rod (10) are gone up in first dog (9), threaded connection has dog (11) on threaded rod (10), be equipped with stop gear in adjustment tank (6), be equipped with on main shaft (1) and strengthen thread bush (2), fixedly connected with fixed block (4) are gone up in electric motor rotor (3).
2. The electric spindle with the adjustable length as claimed in claim 1, wherein the limiting mechanism comprises a plurality of second stoppers (12), each second stopper (12) is fixedly connected to the inner wall of the adjusting groove (6), the plurality of second stoppers (12) are distributed in an annular array, and each second stopper (12) is provided with a through hole (13).
3. The electric spindle with the adjustable length as claimed in claim 1, wherein the spindle (1) is provided with a first external thread (8), the motor rotor (3) is provided with a second external thread (14), and the first external thread (8) and the second external thread (14) are both matched with the reinforcing thread sleeve (2).
4. Electric spindle with adjustable length according to claim 1, characterized in that the fixing block (4) has a slot therein, and an elastic gasket (5) is fixedly connected in the slot.
5. An adjustable length electric spindle according to claim 1, characterized in that the fixed block (4) is annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921647154.4U CN210755212U (en) | 2019-09-30 | 2019-09-30 | Electric spindle with adjustable length |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921647154.4U CN210755212U (en) | 2019-09-30 | 2019-09-30 | Electric spindle with adjustable length |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210755212U true CN210755212U (en) | 2020-06-16 |
Family
ID=71066058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921647154.4U Active CN210755212U (en) | 2019-09-30 | 2019-09-30 | Electric spindle with adjustable length |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210755212U (en) |
-
2019
- 2019-09-30 CN CN201921647154.4U patent/CN210755212U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200928 Address after: No. 198, Xingdong Road, economic development zone, Changzhou City, Jiangsu Province, 213000 Patentee after: Jiangsu Lingchen Precision Machinery Co., Ltd Address before: 1026, 10 / F, building 2, yard 3, North Second Street, Jinguan, Nanfaxin Town, Shunyi District, Beijing 100000 Patentee before: Yimizhihui Engineering Technology Research Institute (Beijing) Co.,Ltd. |