CN209736649U - Servo two-way tight electricity main shaft structure of pressing from both sides of integral type water-cooling permanent magnetism - Google Patents
Servo two-way tight electricity main shaft structure of pressing from both sides of integral type water-cooling permanent magnetism Download PDFInfo
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- CN209736649U CN209736649U CN201920544286.8U CN201920544286U CN209736649U CN 209736649 U CN209736649 U CN 209736649U CN 201920544286 U CN201920544286 U CN 201920544286U CN 209736649 U CN209736649 U CN 209736649U
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Abstract
The utility model relates to an integral type water-cooling permanent magnetism servo two-way clamping electricity main shaft structure, including holder casing and right bearing frame, the embedding of inside one side of holder casing is installed right bearing frame, the inside coaxial arrangement of right bearing frame has the main shaft, be provided with the main shaft bearing between right bearing frame and the main shaft, the outside of right bearing frame is provided with the rotor sleeve that links to each other with the main shaft, the inside of holder casing is located the outside of rotor sleeve and is provided with the stator, the one end axial of main shaft is installed with the hydro-cylinder piston, the inside of hydro-cylinder piston and main shaft is installed left rubber chuck and right rubber chuck respectively, the left side of hydro-cylinder piston; a hydraulic clamping oil inlet hole and a hydraulic loosening oil inlet hole are formed in the right bearing seat, and a left sealing cover and a right sealing cover of the bearing seat are respectively installed on the left side and the right side of the right bearing seat. The utility model discloses a brand-new structure has effectively solved the problem among the prior art.
Description
Technical Field
The utility model relates to a press from both sides tight main shaft field, especially relate to a servo two-way tight electric main shaft structure of clamp of integral type water-cooling permanent magnetism.
Background
the two-way clamping main shaft on the market is produced in Taiwan or Japan. All the adopted belts are externally hung and then are driven by a motor. The biggest defects are large volume and space occupation (because an external belt and a motor are needed). If the bidirectional clamping main shaft is installed on a machine tool, the bidirectional clamping main shaft is expected to be capable of servo moving and feeding, the bidirectional clamping main shaft in the current market is designed aiming at the machine tool, and the transmission and sealing protection of the bidirectional clamping main shaft are complex.
Because the servo motor that servo moving's lead screw, transmission moment give the lead screw need still reserve space such as installation and later stage debugging maintenance, so relatively occupation space. The other problem is the sealing protection problem, because the bidirectional clamping main shaft adopts an externally hung belt and is driven by a motor, if the bidirectional clamping main shaft is horizontally placed and only moves left and right, the motor is usually hung on the upper surface or below a guide rail of a machine tool body, and if the motor is hung on the upper surface, the protection is easy, but the motor occupies a larger space.
if the motor is mounted below the bed guide rail, the sealing is troublesome because the guide rail needs to be separated from the rectangular long notch according to the movement distance, the longer the notch is opened, the larger the influence on the rigidity of the guide rail, particularly a linear rail, and because the rectangular notch is opened between the bed guide rails, a plurality of reinforcing ribs among the guide rails must be sacrificed.
the design is another design, in order to enable the traditional bidirectional clamping spindle to realize XYZ three-axis movement, the design of a bearing body of the bidirectional clamping spindle is greatly tested, the weight of the bearing body, the driving torque and the rigidity need to be considered, the protection need to be considered, the position of a motor hanger and the like.
Therefore, a new bidirectional clamping spindle structure is needed to solve the above problems and to be applied to the existing machine tool.
Disclosure of Invention
The utility model aims to solve the technical problem that a servo two-way tight electricity main shaft structure of pressing from both sides of integral type water-cooling permanent magnetism is provided, adopts brand-new structure, has effectively solved the problem among the prior art.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides an integral type water-cooling permanent magnetism servo two-way tight electricity main shaft structure that presss from both sides, includes holder casing and right bearing frame, the inside one side embedding of holder casing install right bearing frame, the inside coaxial arrangement of right bearing frame have the main shaft, right bearing frame and main shaft between be provided with main shaft bearing, the outside of right bearing frame be provided with the rotor sleeve that links to each other with the main shaft, the radial lateral wall of rotor sleeve on be provided with rotor magnet steel, the inside of holder casing be located the rotor sleeve's the outside and be provided with the stator, the inside opposite side of holder casing install left sealing lid, the one end axial of main shaft install the hydro-cylinder piston, the inside of hydro-cylinder piston and main shaft install left rubber chuck and right rubber chuck respectively, left rubber chuck and right rubber chuck between link to each other through the trombone slide of axial arrangement, the left side of the oil cylinder piston is sleeved with an oil cylinder sealing cover;
The oil pipe that is provided with hydraulic pressure tight inlet port and hydraulic pressure and loosens the inlet port in the right side bearing frame inside, hydraulic pressure press from both sides tight inlet port and hydro-cylinder piston right side and main shaft between the oil duct communicate with each other, hydraulic pressure loosen the oil duct between inlet port and hydro-cylinder piston left side and the hydro-cylinder sealed lid and communicate with each other, the left and right sides of right bearing frame install the sealed lid in the left side of bearing frame and the sealed lid in the right side bearing frame respectively and seal, the inside horizontal oil return hole that is provided with of lower extreme of right bearing frame, the inside radial division of the sealed lid in the left side of bearing frame and the sealed lid in the right side of bearing frame have the inlet port that extends to the main.
As a supplement, a stator cooling jacket is installed between the radial outer side of the stator and the holder shell, a pair of mutually communicated cooling water channels are arranged between the stator cooling jacket and the holder shell side by side, and the two cooling water channels are respectively communicated with a water inlet hole and a water outlet hole on the side wall of the holder shell.
Further, the radial outside of the oil cylinder sealing cover is provided with an encoder disc, and the radial outside of the encoder disc is provided with an encoder reading head connected with the left sealing cover.
Furthermore, a pair of main shaft bearings are arranged between the right bearing seat and the main shaft, an outer bearing spacer ring and an inner bearing spacer ring are arranged between the two main shaft bearings from outside to inside, a plurality of communicating holes which are radially communicated are uniformly distributed in the outer bearing spacer ring and the inner bearing spacer ring, and the communicating holes are communicated with the hydraulic clamping oil inlet hole and the hydraulic loosening oil inlet hole.
Furthermore, the radial outer sides of the left rubber chuck and the right rubber chuck are respectively contacted with the oil cylinder piston and the main shaft through conical surfaces.
Furthermore, the left sealing cover and the axial left side of the oil cylinder sealing cover are provided with a left outer waterproof sealing cover, and the outer side of the right sealing cover of the bearing seat is provided with a right outer waterproof sealing cover.
Furthermore, the middle part of the inner side of the right outer waterproof sealing cover is buckled with a sealing cover inner ring.
Furthermore, a power line aviation plug connected with the stator is installed on the side wall of the holder shell.
Furthermore, an encoder aviation plug connected with an encoder reading head is installed below the power line aviation plug.
Furthermore, the right side of the rotor magnetic steel is provided with a sleeve nut in threaded connection with the rotor sleeve, and the surface of the rotor magnetic steel is provided with a magnetic steel protective sleeve
Has the advantages that: the utility model relates to a servo two-way tight electricity main shaft structure that presss from both sides of integral type water-cooling permanent magnetism has cancelled traditional motor and has added the transmission of belt, perhaps gear drive. The main shaft is directly driven by the embedded motor, so that the structure and transmission error of a main transmission chain of the machine tool are reduced to zero, and zero transmission of the machine tool is realized; the main shaft box body, the motor and the main shaft are of an integrated structure, the size is small, the structure is compact, the installation is simple and convenient, the space is saved, an intermediate transmission link is not needed, the efficiency is high, the vibration is small, the noise is low, the operation is stable, and the service life of a main shaft bearing is longer under the same rotating speed; a built-in high-precision encoder is designed, the rotating speed and the position of the main shaft are fed back in real time, the high-speed feedback of signals such as the rotation and the indexing position of the main shaft can be easily completed through an upper computer, the control is easy, and the highest position precision can reach within 0.002 degree; the built-in water circulation cooling structure solves the problem that the precision is influenced because the motor is conducted to other parts due to heating, and the cooling system is arranged, so that high rotating speed, high precision and high dynamic and static stability are easy to realize; the built-in air sealing structure solves the protection problem of the permanent magnetic servo bidirectional clamping electric spindle, and the product can be used in a plurality of extremely high temperature and dusty environments due to the air sealing and water cooling structure; the built-in hydraulic clamping and loosening structure can easily finish the clamping of the product. Especially for shaft parts, especially for very long shaft parts; the self-designed embedded permanent magnet motor has the advantages of low transmission inertia, high dynamic response, small size, high power density, large torque, energy conservation and the like. Therefore, the design integrates the motor, the main shaft, the water cooling and the hydraulic clamping and loosening, is air-tight integrated, has small volume and compact structure, is beneficial to realizing various machine tool structural designs which are luxurious once, and is particularly suitable for the special machine tool for processing shaft parts. The design is favorable for the optimal design of modern electromechanical control technology, meets the requirements of different machine tool designs and different bearing platform conversion, can select two or more than two shaft parts of ultra-long type for free combined processing, greatly simplifies the design of the machine tool because of no interference of the traditional externally hung motors, belts and the like, and is also suitable for the connection of automation devices.
Drawings
FIG. 1 is a front view structural diagram of the present invention;
FIG. 2 is a side view structural diagram of the present invention;
FIG. 3 is a view of the structure of FIG. 1 in a half section A-A;
FIG. 4 is a view of the structure of FIG. 2 in a half section B-B direction;
FIG. 5 is a view of the C-C half section of FIG. 4;
Fig. 6 is a front view structural diagram of the right bearing seat of the present invention;
FIG. 7 is a view of the half section E-E of FIG. 6;
FIG. 8 is a view of the half section G-G of FIG. 6;
FIG. 9 is a view of the half section D-D of FIG. 6;
Fig. 10 is a half sectional view in the direction F-F of fig. 6.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims. The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
As shown in fig. 1-10, an embodiment of the present invention relates to an integrated water-cooling permanent magnet servo bidirectional clamping electric spindle structure, which comprises a holder housing 1 and a right bearing seat 23, wherein a right bearing seat 23 is embedded in one side of the inside of the holder housing 1, a spindle 18 is coaxially installed inside the right bearing seat 23, a spindle bearing 20 is arranged between the right bearing seat 23 and the spindle 18, a rotor sleeve 16 connected with the spindle 18 is arranged outside the right bearing seat 23, rotor magnetic steel 13 is arranged on the radial outer side wall of the rotor sleeve 16, a stator 15 is arranged outside the rotor sleeve 16 inside the holder housing 1, a left sealing cover 2 is installed on the other side of the inside of the holder housing 1, an oil cylinder piston 10 is axially installed at one end of the spindle 18, a left rubber chuck 8 and a right rubber chuck 9 are respectively installed inside the oil cylinder piston 10 and the spindle 18, the left rubber chuck 8 and the right rubber chuck 9 are connected through an axially arranged pull pipe 7, and the left side of the oil cylinder piston 10 is sleeved with an oil cylinder sealing cover 11;
the right bearing seat 23 inside be provided with the hydraulic pressure and press from both sides tight inlet port 32 and the hydraulic pressure unclamp the inlet port 31, the hydraulic pressure press from both sides tight inlet port 32 and the oil duct between 10 right sides of hydro-cylinder piston and the main shaft 18 communicate with each other, the hydraulic pressure unclamp the oil duct between inlet port 31 and 10 left sides of hydro-cylinder piston and the sealed lid 11 of hydro-cylinder and communicate with each other, the left and right sides of right bearing seat 23 install the sealed lid of bearing seat 6 and the sealed lid 22 of bearing seat right respectively, the inside of the lower extreme of right bearing seat 23 transversely be provided with oil gallery 30, the sealed lid of bearing seat 6 and the sealed inside radial division of the sealed lid 22 of bearing seat have the inlet port that extends to main shaft 18, the inside axial of right bearing seat 23 be provided with the.
The stator cooling jacket 24 is installed between the radial outer side of the stator 15 and the holder shell 1, a pair of cooling water channels 25 which are communicated with each other are arranged between the stator cooling jacket 24 and the holder shell 1 side by side, and the two cooling water channels 25 are respectively communicated with a water inlet hole 28 and a water outlet hole 29 on the side wall of the holder shell 1.
The radial outer side of the oil cylinder sealing cover 11 is provided with an encoder disc 5, and the radial outer side of the encoder disc 5 is provided with an encoder reading head 3 connected with the left sealing cover 2.
A pair of main shaft bearings 20 are arranged between the right bearing seat 23 and the main shaft 18, an outer bearing spacer ring 12 and an inner bearing spacer ring 17 are arranged between the two main shaft bearings 20 from outside to inside, a plurality of radial through communication holes 34 are uniformly distributed in the outer bearing spacer ring 12 and the inner bearing spacer ring 17, and the communication holes 34 are communicated with a hydraulic clamping oil inlet hole 32 and a hydraulic loosening oil inlet hole 31.
The radial outer sides of the left rubber chuck 8 and the right rubber chuck 9 are respectively contacted with the oil cylinder piston 10 and the main shaft 18 through conical surfaces.
the left sealing cover 2 and the oil cylinder sealing cover 11 are axially provided with a left outer waterproof sealing cover 4, and the outer side of the bearing seat right sealing cover 22 is provided with a right outer waterproof sealing cover 21.
The inner middle part of the inner side of the right outer waterproof sealing cover 21 is buckled with a sealing cover inner ring 19, the side wall of the holder shell 1 is provided with a power line aviation plug 26 connected with the stator 15, and an encoder aviation plug 27 connected with the encoder reading head 3 is arranged below the power line aviation plug 26.
And a sleeve nut 14 in threaded connection with a rotor sleeve 16 is arranged on the right side of the rotor magnetic steel 13, and a magnetic steel protective sleeve is arranged on the surface of the rotor magnetic steel 13.
As an embodiment of the present invention:
Before use, the aviation plug 26 of the power line is externally connected with three-phase power supplied by an upper computer through a cable, and internally connected with an internal stator 15, and is mainly responsible for supplying power to a motor.
and (3) air sealing principle: the penetrating air inlet pipeline 33 is connected with a factory air source through the outside of an air pipe and is responsible for supplying air to the left sealing cover 6 and the right sealing cover 22 of the bearing seat, the left sealing cover 6 and the right sealing cover 22 of the bearing seat are provided with reserved air inlets towards the direction of the main shaft bearing 20, and the reserved air inlets are communicated with the penetrating air inlet pipeline 33 reserved on the right bearing seat 23. The bearing seat left sealing cover 6 and the bearing seat right sealing cover 22 are provided with two air inlet holes which are communicated on the outer side surface of the main shaft 18 in the radial direction. When the parts are combined, the parts are completely communicated. When a factory air source enters through a penetrating air inlet pipeline 33 which clamps an electric main shaft shell in a bidirectional mode, the air source enters a right bearing seat 23 and respectively supplies a bearing seat left sealing cover 6 and a bearing seat right sealing cover 22, the air source leads to a main shaft 18 through 2 air inlets of the bearing seat left sealing cover 6 and the bearing seat right sealing cover 22, as the oil ducts of the main shaft 18, the bearing seat left sealing cover 6 and the bearing seat right sealing cover 22 are very small, the air source with constant pressure can generate air resistance after reaching the air source, oil gas and the like on two sides of the bearing seat left sealing cover 6 and the bearing seat right sealing cover 22 are isolated under high pressure, and air. And because the oil ducts of the left sealing cover 6 and the right sealing cover 22 of the bearing seat and the main shaft 18 are very small, the oil gas and the like on the two sides of the left sealing cover 6 and the right sealing cover 22 of the bearing seat can be blown open due to the overflow of a small air source.
Hydraulic clamping principle: the hydraulic clamping oil inlet 32 is connected with a machine tool hydraulic station through a hydraulic oil pipe, and when the hydraulic station receives a clamping oil supply signal given by an upper computer, an electromagnetic valve of the hydraulic station is opened to supply oil. Hydraulic oil enters the right bearing seat 23 through a hydraulic clamping oil inlet hole 32 of the bidirectional clamping electric main shaft shell, then enters the bearing outer spacer 12, then enters the bearing inner spacer 17 through uniformly distributed holes on the bearing outer spacer 12, then enters an oil duct between the right side of the oil cylinder piston 10 and the main shaft 18 through uniformly distributed holes on the bearing inner spacer 17, finally pushes the oil cylinder piston 10 to displace, drives the left rubber chuck 8 to displace towards the left when the oil cylinder piston 10 displaces, drives the pull pipe 7 to move towards the left when the left rubber chuck 8 displaces, and simultaneously drives the right rubber chuck 9 to displace, when the right rubber chuck 9 moves, the outer taper of the right rubber chuck 9 meets the inner taper combination of the main shaft 18 to prevent the right rubber chuck 9 from moving towards the left so as to compress the right rubber chuck 9 to shrink, because the inner taper of the oil cylinder piston 10 is tightly attached to the left rubber chuck 8, the oil cylinder piston 10 still continues to push the left rubber chuck 8 to move towards the left, the left displacement of the left rubber chuck 8 drives the pull pipe 7 connected with the left rubber chuck to continuously drive the right rubber chuck 9 connected with the pull pipe 7 to move leftwards, the right rubber chuck 9 is compressed by the taper in the main shaft 18, the diameter can only be reduced, and the right rubber chuck cannot move leftwards, the leftward displacement of the oil cylinder piston 10 causes the taper in the oil cylinder piston 10 to start to compress the left rubber chuck 8, so that the left rubber chuck 8 is forced to clamp a workpiece, the oil cylinder piston 10 is further pushed leftwards continuously and drives the left rubber chuck 8 and the pull pipe 7 connected with the left rubber chuck until the workpiece is completely clamped by the rubber chucks at two ends, the oil cylinder piston 10 cannot move until reaching a preset pressure, and the action of clamping the workpiece is completed.
Hydraulic loosening principle: the hydraulic loosening oil inlet hole 31 is connected with a machine tool hydraulic station through a hydraulic oil pipe, when the hydraulic station receives a loosening oil supply signal given by an upper computer, an electromagnetic valve of the hydraulic station is opened to supply oil, and hydraulic oil enters the right bearing seat 23 through the hydraulic loosening oil inlet hole 31 of the bidirectional clamping electric main shaft shell. Then the oil channel reserved on the right bearing seat 23 enters the bearing outer space ring 12, the oil channel is uniformly distributed on the bearing outer space ring 12 and enters the bearing inner space ring 17, the hydraulic loosening oil inlet channel reserved on the outer side of the main shaft 18 is distributed on the bearing inner space ring 17, the oil channel enters the oil channel between the left side of the oil cylinder piston 10 and the oil cylinder sealing cover 11, finally the oil cylinder piston 10 is pushed to move rightwards, when the oil cylinder piston 10 moves rightwards, the elastic tension on the left rubber chuck 8 is released, the elastic tension of the right rubber chuck 9 is also released, so that the elastic tension of the right rubber chuck 9 drives the pull pipe 7 connected with the right rubber chuck to move rightwards, and the loosening action of the clamped workpiece is realized.
the oil return principle of hydraulic oil is as follows: after the hydraulic station is started, oil can always enter the oil cylinder piston 10 through the oil passage of the right bearing block 23, and no matter the oil cylinder piston is clamped or loosened, the oil cylinder piston can overflow after redundant hydraulic pressure only when the pressure reaches the pressure set by the hydraulic station. The overflowed high-pressure hydraulic oil can overflow through a gap between the bearing outer spacer 12 and the bearing inner spacer 17 to supply the bearing for realizing the lubrication of the bearing. Since the hydraulic oil is supplied all the time, the hydraulic oil will always overflow through the gap between the bearing outer spacer 12 and the bearing inner spacer 17. The hydraulic oil which continuously overflows flows to the left and meets the left sealing cover 6 passing through the bearing seat. Because the left sealing cover 6 and the right sealing cover 22 of the bearing seat are always blocked by the air-tight high-pressure gas, the hydraulic oil can only return to the oil return hole 30 on the right bearing seat through the oil return notch reserved on the left sealing cover 6 of the bearing seat, the hydraulic oil entering the oil return hole 30 continuously flows forwards and meets the right sealing cover 22 of the bearing seat, the right sealing cover 22 of the bearing seat is also always blocked by the air-tight high-pressure gas, and the hydraulic pressure can only return to the oil return hole 30 reserved on the right bearing seat, returns to the hydraulic station through the oil return pipe joint and is repeatedly utilized after being cooled in the hydraulic station.
The water inlet opening 28 and the water outlet opening 29 which are connected to the cooling water channel 25 are virtually indifferent, and when one of them is supplied with cooling water, the other automatically becomes a cooling water outlet. Because the motor can have heat conduction during operation, in order to protect the motor and each part in the bidirectional clamping electric spindle from heat conduction, and part expansion or form and position change caused by heat conduction, a cooling structure is arranged. When cooling water enters one of the cooling water pipes, the cooling water enters the stator cooling jacket 24, two cooling water channels 25 which are communicated with each other are arranged on the stator cooling jacket 24, the cooling water flows into the first cooling water channel 25 and flows around the stator cooling jacket 24 to a previous circle, the first cooling water channel 25 is led to a water blocking block of the second cooling water channel 25, and under the action of the water blocking block, the cooling water continues to cool along the second cooling water channel 25 and finally flows out through the other water outlet 29.
The utility model discloses a brand-new structure has effectively solved the problem among the prior art, has higher popularization value.
Claims (10)
1. The utility model provides an integral type water-cooling permanent magnetism servo two-way tight electricity main shaft structure that presss from both sides, includes holder casing (1) and right bearing frame (23), its characterized in that, the inside one side embedding of holder casing (1) install right bearing frame (23), the inside coaxial arrangement of right bearing frame (23) have main shaft (18), right bearing frame (23) and main shaft (18) between be provided with main shaft bearing (20), the outside of right bearing frame (23) be provided with rotor sleeve (16) that link to each other with main shaft (18), the radial lateral wall of rotor sleeve (16) on be provided with rotor magnet steel (13), the inside of holder casing (1) be located the outside of rotor sleeve (16) and be provided with stator (15), the inside opposite side of holder casing (1) install left sealed lid (2), the one end axial of main shaft (18) install hydro-cylinder piston (10), a left rubber chuck (8) and a right rubber chuck (9) are respectively arranged inside the oil cylinder piston (10) and the main shaft (18), the left rubber chuck (8) and the right rubber chuck (9) are connected through an axially arranged pull pipe (7), and an oil cylinder sealing cover (11) is sleeved on the left side of the oil cylinder piston (10);
A hydraulic clamping oil inlet hole (32) and a hydraulic loosening oil inlet hole (31) are arranged in the right bearing seat (23), the hydraulic clamping oil inlet hole (32) is communicated with an oil passage between the right side of the oil cylinder piston (10) and the main shaft (18), the hydraulic release oil inlet hole (31) is communicated with an oil duct between the left side of the oil cylinder piston (10) and the oil cylinder sealing cover (11), the left side and the right side of the right bearing seat (23) are respectively provided with a left sealing cover (6) and a right sealing cover (22), an oil return hole (30) is transversely arranged in the lower end of the right bearing seat (23), the inner parts of the left sealing cover (6) and the right sealing cover (22) of the bearing seat are radially provided with air inlet holes extending to the main shaft (18), and a penetrating air inlet pipeline (33) which is communicated with an air inlet hole in the left sealing cover (6) of the bearing seat and an air inlet hole in the right sealing cover (22) of the bearing seat is axially arranged in the right bearing seat (23).
2. The integrated water-cooling permanent magnet servo bidirectional clamping electric spindle structure according to claim 1, characterized in that: the stator cooling jacket (24) is installed between the radial outer side of the stator (15) and the holder shell (1), a pair of cooling water channels (25) which are communicated with each other are arranged between the stator cooling jacket (24) and the holder shell (1) side by side, and the two cooling water channels (25) are communicated with a water inlet hole (28) and a water outlet hole (29) in the side wall of the holder shell (1) respectively.
3. The integrated water-cooling permanent magnet servo bidirectional clamping electric spindle structure according to claim 1, characterized in that: the radial outer side of the oil cylinder sealing cover (11) is provided with an encoder disc (5), and the radial outer side of the encoder disc (5) is provided with an encoder reading head (3) connected with the left sealing cover (2).
4. The integrated water-cooling permanent magnet servo bidirectional clamping electric spindle structure according to claim 1, characterized in that: a pair of main shaft bearings (20) is arranged between the right bearing seat (23) and the main shaft (18), an outer bearing spacer ring (12) and an inner bearing spacer ring (17) are arranged between the two main shaft bearings (20) from outside to inside, a plurality of radial through communication holes (34) are uniformly distributed in the outer bearing spacer ring (12) and the inner bearing spacer ring (17), and the communication holes (34) are communicated with a hydraulic clamping oil inlet hole (32) and a hydraulic loosening oil inlet hole (31).
5. the integrated water-cooling permanent magnet servo bidirectional clamping electric spindle structure according to claim 1, characterized in that: the radial outer sides of the left rubber chuck (8) and the right rubber chuck (9) are respectively contacted with the oil cylinder piston (10) and the main shaft (18) through conical surfaces.
6. the integrated water-cooling permanent magnet servo bidirectional clamping electric spindle structure according to claim 1, characterized in that: the left side of the axial direction of the left sealing cover (2) and the oil cylinder sealing cover (11) is provided with a left side outer waterproof sealing cover (4), and the outer side of the bearing seat right sealing cover (22) is provided with a right side outer waterproof sealing cover (21).
7. The integrated water-cooling permanent magnet servo bidirectional clamping electric spindle structure according to claim 6, characterized in that: the middle part of the inner side of the right outer waterproof sealing cover (21) is buckled and connected with a sealing cover inner ring (19).
8. The integrated water-cooling permanent magnet servo bidirectional clamping electric spindle structure according to claim 3, characterized in that: and a power line aviation plug (26) connected with the stator (15) is arranged on the side wall of the holder shell (1).
9. The integrated water-cooling permanent magnet servo bidirectional clamping electric spindle structure according to claim 8, characterized in that: and an encoder aviation plug (27) connected with the encoder reading head (3) is arranged below the power line aviation plug (26).
10. The integrated water-cooling permanent magnet servo bidirectional clamping electric spindle structure according to claim 1, characterized in that: the right side of the rotor magnetic steel (13) is provided with a sleeve nut (14) in threaded connection with a rotor sleeve (16), and the surface of the rotor magnetic steel (13) is provided with a magnetic steel protective sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920544286.8U CN209736649U (en) | 2019-04-22 | 2019-04-22 | Servo two-way tight electricity main shaft structure of pressing from both sides of integral type water-cooling permanent magnetism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920544286.8U CN209736649U (en) | 2019-04-22 | 2019-04-22 | Servo two-way tight electricity main shaft structure of pressing from both sides of integral type water-cooling permanent magnetism |
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| Publication Number | Publication Date |
|---|---|
| CN209736649U true CN209736649U (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920544286.8U Active CN209736649U (en) | 2019-04-22 | 2019-04-22 | Servo two-way tight electricity main shaft structure of pressing from both sides of integral type water-cooling permanent magnetism |
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| CN (1) | CN209736649U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109940175A (en) * | 2019-04-22 | 2019-06-28 | 宁波市鄞州华本电主轴科技有限公司 | A kind of integral type water cooling permanent magnetic servo Bidirectional clamping electric main shaft structure |
-
2019
- 2019-04-22 CN CN201920544286.8U patent/CN209736649U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109940175A (en) * | 2019-04-22 | 2019-06-28 | 宁波市鄞州华本电主轴科技有限公司 | A kind of integral type water cooling permanent magnetic servo Bidirectional clamping electric main shaft structure |
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