CN210435906U

CN210435906U - Burnishing device is used in electric motor rotor processing

Info

Publication number: CN210435906U
Application number: CN201921527849.9U
Authority: CN
Inventors: 徐红耀; 王建良
Original assignee: Nanling Liang Li Electrical Tools Co ltd
Current assignee: Nanling Liang Li Electrical Tools Co ltd
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2020-05-01
Anticipated expiration: 2029-09-16

Abstract

The utility model discloses a burnishing device is used in electric motor rotor processing, include operation panel, movable plate, motor one, loading board, roof, pneumatic cylinder, bear frame and motor two, its characterized in that: the operating table is arranged on the support, the moving plate is provided with a mounting bolt, the first motor is arranged on the moving plate, the two opposite sides of the bearing plate are provided with racks and pinions, the top plate is arranged on the stand column, and the hydraulic cylinder is arranged on the top plate. The utility model discloses it is rotatory with first drive transmission shaft of motor and drive gear, the teeth of a cogwheel on the drive gear interlock teeth of a cogwheel strip, it is rotatory to make the drive gear drive wheel rack of rotatory in-process to make the loading board pull back on the operation panel and remove, drive the electric motor rotor round trip movement in the bearing groove, make the electric motor rotor in the bearing groove can with the burnishing roll contact of rotatory in-process, carry out polishing treatment to the electric motor rotor in the different positions bearing groove, the polishing efficiency and the polishing quality of electric motor rotor have been improved.

Description

Burnishing device is used in electric motor rotor processing

Technical Field

The utility model relates to an electric motor rotor processing technology field specifically is a burnishing device is used in electric motor rotor processing.

Background

The rotor polishing machine belongs to one of polishing machines, and carries out surface polishing treatment on the outer surface of a rotor. At present, in the prior art, the rotor polishing machine has low working efficiency, and the machine has poor universality, and a patent with the application number of 201821401565.0 discloses a motor rotor polishing device which solves the problem of low working efficiency of motor rotor polishing, but has the problems of small universality of a polishing device, poor stability of a motor rotor in the polishing process, and low polishing quality of the motor rotor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the problem that the burnishing device commonality that current electric motor rotor burnishing device exists is little, electric motor rotor stability is not good, electric motor rotor polishing quality is not high in the polishing process, provide a structural design is reasonable, the commonality is good, electric motor rotor stability is good, the electric motor rotor for the processing of the high electric motor rotor of the suitable electric motor rotor polishing quality in the polishing process burnishing device.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a burnishing device is used in electric motor rotor processing, includes operation panel, movable plate, motor one, loading board, roof, pneumatic cylinder, bears frame and motor two, its characterized in that: the polishing device comprises an operating table, a stand column, a polishing device and a motor, wherein the operating table is arranged on a support, the stand column is vertically arranged on the operating table, a fixing hole which vertically penetrates through the operating table is formed in the operating table, positioning grooves are formed in the back surface of the operating table on two sides of the fixing hole, the operating table is connected with the support and the stand column in a welding mode, the connecting strength between the operating table and the support and the stand column is improved, the structural strength of the polishing device is enhanced, the stability of a motor rotor in the polishing process is enhanced, a mounting bolt is arranged on a movable plate, the movable plate is mounted on the back surface of the operating table and extends into the positioning grooves, the motor I is mounted on the movable plate, a transmission shaft I is arranged on the motor I, the transmission shaft I vertically penetrates through the fixing grooves, a driving gear is arranged on the transmission shaft I, a space can be provided, the mounting efficiency and the stability after mounting of the first motor are improved, the stability of the first motor in the working process can also be improved, in order to facilitate the control of the rotating speed of the first motor, a speed reducing device matched with the first motor can be mounted on the first motor, wheel racks are arranged on two opposite sides of the bearing plate, a bearing groove is formed in the bearing plate, a connecting plate is arranged on the back surface of the bearing plate, a connecting shaft is arranged on the connecting plate, an auxiliary wheel is arranged on the connecting shaft between the connecting plate and the connecting plate, the auxiliary wheel is placed on the operating table, the bearing plate, the wheel racks and the connecting plate are connected in a welding mode, the connecting strength between the bearing plate, the wheel racks and the connecting plate is enhanced, the top plate is arranged on the stand column, the top plate and the stand column are connected in a welding mode, the connecting strength between the stand column and the top plate is enhanced, the structural strength, the hydraulic cylinder is provided with a piston rod, the piston rod vertically penetrates out from the lower part of the top part, the hydraulic cylinder is arranged on the top plate through a screw, the mounting efficiency and the mounting stability of the hydraulic cylinder are improved, the working stability of the hydraulic cylinder can also be enhanced, the bearing frame is connected with the piston rod, the bearing frame is provided with a bearing, the second motor is arranged on the bearing frame, the second motor is provided with a second transmission shaft, one end of the second transmission shaft is inserted into the bearing, the second transmission shaft is provided with a polishing roller, the second motor is arranged on the bearing frame through a screw, the mounting efficiency and the mounting stability of the second motor are improved, the working stability of the second motor is also improved, the rotating speed of the second motor is convenient to control, a speed reducing device matched with the second motor can be arranged on the second motor, and the hydraulic cylinder and the piston rod push the bearing frame to, the bearing frame drives the second motor, the second transmission shaft and the polishing roller on the second transmission shaft to ascend or descend, the second motor drives the second transmission shaft and the polishing roller to rotate, the descending polishing roller is in contact with the motor rotor in the bearing groove, surface polishing treatment is carried out on the motor rotor, the working efficiency is improved, and the labor intensity of operators is reduced.

Preferably, the operating platform openly on seted up the spacing groove to stretch into the spacing inslot with the auxiliary wheel bottom, the loading board moves the in-process on the operating platform, the spacing groove can play limiting displacement to the auxiliary wheel that moves the in-process, avoids the auxiliary wheel to take place transversely to rock at the roll in-process, improves the stability of loading board at the moving-process on the operating platform, and then improves the stability of bearing inslot electric motor rotor at the moving-process, reinforcing electric motor rotor's polishing quality.

Preferably, the movable plate is set to be a structure capable of adjusting the position on the operating platform through the mounting bolts, threads are formed in positioning grooves in the operating platform, the mounting bolts can rotate in the positioning grooves, the position of the movable plate on the operating platform can be adjusted conveniently through the mounting bolts, a bearing plate with a bearing groove with a proper size is selected according to the size of a motor rotor to be polished, the motor rotor to be polished is placed into the bearing groove, the position of the mounting plate on the operating platform is adjusted through the mounting bolts, a driving gear on the first transmission shaft is meshed and connected with a wheel rack on the side edge of the bearing plate, the first motor is convenient to drive the bearing plate to move back and forth, the universality of the polishing device is improved, the polishing device can be suitable for motor rotors with different sizes, the application range of the polishing device is expanded, and the cost for manufacturing.

Preferably, motor one set up to servo motor to be connected the drive gear on the transmission shaft one with the rack and pinion interlock on the loading board side, motor one drives transmission shaft one and drive gear is rotatory, the teeth of a cogwheel on the drive gear interlock teeth of a cogwheel strip, it is rotatory to make the drive gear drive wheel rack in the rotation process, thereby make the loading board pull back the removal on the operation panel, drive the electric motor rotor round trip movement who bears the weight of the inslot, make the electric motor rotor that bears the weight of the inslot can contact with the burnishing roll in the rotation process, carry out polishing treatment to the electric motor rotor that bears the inslot in different positions, the polishing efficiency and the polishing quality of electric motor rotor have been improved.

Preferably, the loading board on the bearing groove both ends be provided with the mounting plate through the spring, and set up the mounting plate into the arc structure, can play the fastening action to electric motor rotor from electric motor rotor's both sides through the mounting plate, make electric motor rotor can form the balance of horizontal direction in bearing the weight of the inslot, when burnishing roll and electric motor rotor contact, electric motor rotor atress can reciprocate, the spring at both ends is in balanced state and can not make electric motor rotor take place transversely to rock, the surface that makes electric motor rotor can be polished simultaneously and is handled, strengthen electric motor rotor's polishing quality, burnishing roll among the rotation process drives electric motor rotor and rotates, make electric motor rotor rotate around the mounting plate, can polish the processing to the different surfaces of electric motor rotor, and the work efficiency is improved.

Preferably, the second motor is a servo motor, the second motor drives the second transmission shaft and the polishing roller to rotate forwards or reversely, and the second motor can be matched with the bearing plate to drive the motor rotor to move back and forth to polish the motor rotor, so that the working efficiency is improved, and the polishing quality of the motor rotor is enhanced.

Has the advantages that: the utility model discloses pass through the structure that mounting bolt set up the movable plate to the position of can adjusting on the operation panel, the screw thread has been seted up in the constant head tank on the operation panel, make mounting bolt can be at the constant head tank internal rotation, be convenient for adjust the position of movable plate on the operation panel through mounting bolt, the electric motor rotor size of polishing as required, the selection has the loading board of suitable big or small bearing groove, put into the bearing groove with the electric motor rotor that needs the polishing, through the position of mounting bolt adjustment mounting panel on the operation panel, make the epaxial drive gear of transmission and be connected with the wheel rack interlock on the loading board side, it drives the loading board round trip movement to be convenient for motor one, burnishing device's commonality has been improved, make burnishing device can be suitable for the electric motor rotor of variation in size, burnishing device's application scope has been.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of a part of the structure of the present invention, illustrating the connection structure between the operation table and the moving plate.

Fig. 3 is a schematic view of a part of the structure of the present invention, illustrating the connection structure of the operation platform and the limiting groove.

Fig. 4 is a schematic view of a part of the structure of the present invention, illustrating the connection structure of the bearing plate and the bearing groove.

Fig. 5 is a schematic view of a part of the structure of the present invention, illustrating the connection structure of the bearing groove and the fastening plate.

Fig. 6 is a schematic view of a part of the structure of the present invention, illustrating the connection structure of the second motor and the polishing roller.

Fig. 7 is a schematic diagram of another embodiment of the present invention.

Fig. 8 is a schematic partial structure view of fig. 7 of the present invention, illustrating a connection structure of the carriage and the limiting plate.

In the figure: 1. the automatic polishing machine comprises an operation table, a moving plate, a motor I, a bearing plate, a top plate, a hydraulic cylinder 6, a bearing frame 7, a motor II, a support 9, an upright post 10, a fixing groove 11, a positioning groove 12, a limiting groove 13, a mounting bolt 14, a transmission shaft I, a transmission shaft 16, a driving gear 17, a wheel rack 17, a bearing groove 18, a connecting plate 19, a spring 20, a fastening plate 21, a connecting shaft 22, an auxiliary wheel 23, a piston rod 24, a bearing 25, a transmission shaft II, a polishing roller 27, a limiting plate 28, a fixing hole 29, a limiting ring 30 and a fan 31.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The first embodiment is as follows:

as shown in fig. 1-6, a polishing device for motor rotor machining comprises an operation table 1, a moving plate 2, a first motor 3, a bearing plate 4, a top plate 5, a hydraulic cylinder 6, a bearing plate 7 and a second motor 8, and is characterized in that: the polishing device is characterized in that the operating table 1 is arranged on a support 9, an upright post 10 is vertically arranged on the operating table 1, a fixing hole 29 which vertically penetrates through the operating table 1 is formed in the operating table 1, positioning grooves 12 are formed in the back face of the operating table 1 on two sides of the fixing hole 29, the operating table 1 is connected with the support 9 and the upright post 10 in a welding mode, the connecting strength between the operating table 1 and the support 9 and between the operating table 1 and the upright post 10 is improved, the structural strength of the polishing device is enhanced, the stability of a motor rotor in the polishing process is enhanced, a mounting bolt 14 is arranged on the moving plate 2, the moving plate 2 is arranged on the back face of the operating table 1, the mounting bolt 14 extends into the positioning groove 12, the motor 3 is arranged on the moving plate 2, a transmission shaft 15 is arranged on the motor 3, the transmission shaft 15 vertically penetrates through the fixing groove 11, a driving gear 16 is, the fixing groove 11 can provide space for the transmission shaft I15 of the position adjusting, the motor I3 is arranged on the movable plate 2 through screws, the mounting efficiency and the stability after mounting of the motor I3 are improved, the stability of the motor I3 in the working process can also be improved, in order to facilitate the control of the rotating speed of the motor I3, a speed reducing device matched with the motor I3 can be arranged on the motor I3, the two opposite sides of the bearing plate 4 are respectively provided with a rack and pinion 17, the bearing plate 4 is provided with a bearing groove 18, the back of the bearing plate 4 is provided with a connecting plate 19, the connecting plate 19 is provided with a connecting shaft 22, an auxiliary wheel 23 is arranged on the connecting shaft 22 between the connecting plate 19 and the connecting plate 19, the auxiliary wheel 23 is placed on the operating table 1, the bearing plate 4 is connected with the rack and pinion 17 and the connecting plate 19 through welding, and the connecting strength between the bearing plate 4 and the, the top plate 5 is arranged on the upright post 10, the top plate 5 is connected with the upright post 10 through welding, the connection strength between the upright post 10 and the top plate 5 is enhanced, the structural strength of the polishing device is further improved, the hydraulic cylinder 6 is arranged on the top plate 5, the piston rod 24 is arranged on the hydraulic cylinder 6, the piston rod 24 vertically penetrates out from the lower part of the top part, the hydraulic cylinder 6 is arranged on the top plate 5 through screws, the installation efficiency and the stability after installation of the hydraulic cylinder 6 are improved, the stability of the hydraulic cylinder 6 in the working process can also be enhanced, the bearing frame 7 is connected with the piston rod 24, the bearing 25 is arranged on the bearing frame 7, the second motor 8 is arranged on the bearing frame 7, the second transmission shaft 26 is arranged on the second motor 8, one end of the second transmission shaft 26 is inserted into the bearing 25, the polishing roller 27 is arranged on the second transmission shaft 26, and the second motor 8 is arranged on the bearing, the installation efficiency and the stability after installation of the second motor 8 are improved, the stability of the second motor 8 in the working process can also be improved, in order to control the rotating speed of the second motor 8, a speed reducing device matched with the second motor 8 can be installed on the second motor 8, the hydraulic cylinder 6 and the piston rod 24 push the bearing frame 7 to ascend or descend, the bearing frame 7 drives the second motor 8, the second transmission shaft 26 and the polishing roller 27 on the second transmission shaft 26 to ascend or descend, the second motor 8 drives the second transmission shaft 26 and the polishing roller 27 to rotate, the lowered polishing roller 27 is in contact with the motor rotor in the bearing groove 18, the surface polishing treatment is carried out on the motor rotor, the working efficiency is improved, and the labor intensity of operators is reduced.

Preferably, the operating table 1 is provided with a limiting groove 13 on the front surface, the bottom of the auxiliary wheel 23 extends into the limiting groove 13, the bearing plate 4 moves on the operating table 1, the limiting groove 13 can limit the auxiliary wheel 23 in the moving process, the auxiliary wheel 23 is prevented from transversely shaking in the rolling process, the stability of the bearing plate 4 in the moving process on the operating table 1 is improved, the stability of the motor rotor in the moving process in the bearing groove 18 is improved, and the polishing quality of the motor rotor is enhanced.

Preferably, the movable plate 2 is arranged to be a structure capable of adjusting the position on the operating table 1 through the mounting bolt 14, a thread is arranged in a positioning groove 12 on the operating table 1, so that the mounting bolt 14 can rotate in the positioning groove 12, the position of the movable plate 2 on the operating table 1 is convenient to adjust through the mounting bolt 14, the bearing plate 4 with a bearing groove 18 with a proper size is selected according to the size of the motor rotor to be polished, the motor rotor to be polished is placed in the bearing groove 18, the position of the mounting plate on the operating table 1 is adjusted through the mounting bolt 14, the driving gear 16 on the transmission shaft one 15 is meshed and connected with the wheel rack 17 on the side edge of the bearing plate 4, the motor one 3 is convenient to drive the bearing plate 4 to move back and forth, the universality of the polishing device is improved, the polishing device can be suitable for motor rotors with different sizes, and, the cost of manufacturing multiple sets of polishing devices is reduced.

Preferably, the first motor 3 is a servo motor, the driving gear 16 on the first transmission shaft 15 is meshed with the gear rack 17 on the side edge of the bearing plate 4, the first motor 3 drives the first transmission shaft 15 and the driving gear 16 to rotate, the driving gear 16 is meshed with gear teeth on the gear rack 17, the driving gear 16 in the rotating process drives the gear rack 17 to rotate, the bearing plate 4 is pulled back and moves on the operating platform 1, the motor rotor in the bearing groove 18 is driven to move back and forth, the motor rotor in the bearing groove 18 can be in contact with the polishing roller 27 in the rotating process, the motor rotors in the bearing grooves 18 at different positions are polished, and the polishing efficiency and the polishing quality of the motor rotors are improved.

Preferably, bearing plate 4 on bearing plate 18 both ends be provided with mounting plate 21 through spring 20, and set up mounting plate 21 into the arc structure, can play the fastening action to electric motor rotor from electric motor rotor's both sides through mounting plate 21, make electric motor rotor can form the balance of horizontal direction in bearing plate 18, when burnishing roll 27 and electric motor rotor contact, electric motor rotor atress can reciprocate, spring 20 at both ends is in balanced state and can not make electric motor rotor take place transversely to rock, make electric motor rotor's surface can be polished simultaneously and handle, strengthen electric motor rotor's polishing quality, burnishing roll 27 in the rotatory process drives electric motor rotor and rotates, make electric motor rotor rotate around mounting plate 21, can polish the different surfaces of electric motor rotor and handle, and the work efficiency is improved.

Preferably, the second motor 8 is a servo motor, the second motor 8 drives the second transmission shaft 26 and the polishing roller 27 to rotate in the forward direction or the reverse direction, and the second transmission shaft and the polishing roller can be matched with the bearing plate 4 to drive the motor rotor to perform polishing treatment in the reciprocating process, so that the working efficiency is improved, and the polishing quality of the motor rotor is enhanced.

Example two:

as shown in fig. 7-8, a polishing device for motor rotor machining comprises an operation table 1, a moving plate 2, a first motor 3, a bearing plate 4, a top plate 5, a hydraulic cylinder 6, a bearing plate 7 and a second motor 8, and is characterized in that: the polishing device is characterized in that the operating table 1 is arranged on a support 9, an upright post 10 is vertically arranged on the operating table 1, a fixing hole 29 which vertically penetrates through the operating table 1 is formed in the operating table 1, positioning grooves 12 are formed in the back face of the operating table 1 on two sides of the fixing hole 29, the operating table 1 is connected with the support 9 and the upright post 10 in a welding mode, the connecting strength between the operating table 1 and the support 9 and between the operating table 1 and the upright post 10 is improved, the structural strength of the polishing device is enhanced, the stability of a motor rotor in the polishing process is enhanced, a mounting bolt 14 is arranged on the moving plate 2, the moving plate 2 is arranged on the back face of the operating table 1, the mounting bolt 14 extends into the positioning groove 12, the motor 3 is arranged on the moving plate 2, a transmission shaft 15 is arranged on the motor 3, the transmission shaft 15 vertically penetrates through the fixing groove 11, a driving gear 16 is, the fixing groove 11 can provide space for the transmission shaft I15 of the position adjusting, the motor I3 is arranged on the movable plate 2 through screws, the mounting efficiency and the stability after mounting of the motor I3 are improved, the stability of the motor I3 in the working process can also be improved, in order to facilitate the control of the rotating speed of the motor I3, a speed reducing device matched with the motor I3 can be arranged on the motor I3, the two opposite sides of the bearing plate 4 are respectively provided with a rack and pinion 17, the bearing plate 4 is provided with a bearing groove 18, the back of the bearing plate 4 is provided with a connecting plate 19, the connecting plate 19 is provided with a connecting shaft 22, an auxiliary wheel 23 is arranged on the connecting shaft 22 between the connecting plate 19 and the connecting plate 19, the auxiliary wheel 23 is placed on the operating table 1, the bearing plate 4 is connected with the rack and pinion 17 and the connecting plate 19 through welding, and the connecting strength between the bearing plate 4 and the, the top plate 5 is arranged on the upright post 10, the top plate 5 is connected with the upright post 10 through welding, the connection strength between the upright post 10 and the top plate 5 is enhanced, the structural strength of the polishing device is further improved, the hydraulic cylinder 6 is arranged on the top plate 5, the piston rod 24 is arranged on the hydraulic cylinder 6, the piston rod 24 vertically penetrates out from the lower part of the top part, the hydraulic cylinder 6 is arranged on the top plate 5 through screws, the installation efficiency and the stability after installation of the hydraulic cylinder 6 are improved, the stability of the hydraulic cylinder 6 in the working process can also be enhanced, the bearing frame 7 is connected with the piston rod 24, the bearing 25 is arranged on the bearing frame 7, the second motor 8 is arranged on the bearing frame 7, the second transmission shaft 26 is arranged on the second motor 8, one end of the second transmission shaft 26 is inserted into the bearing 25, the polishing roller 27 is arranged on the second transmission shaft 26, and the second motor 8 is arranged on the bearing, the installation efficiency and the stability after installation of the second motor 8 are improved, the stability of the second motor 8 in the working process can also be improved, in order to control the rotating speed of the second motor 8, a speed reducing device matched with the second motor 8 can be installed on the second motor 8, the hydraulic cylinder 6 and the piston rod 24 push the bearing frame 7 to ascend or descend, the bearing frame 7 drives the second motor 8, the second transmission shaft 26 and the polishing roller 27 on the second transmission shaft 26 to ascend or descend, the second motor 8 drives the second transmission shaft 26 and the polishing roller 27 to rotate, the lowered polishing roller 27 is in contact with the motor rotor in the bearing groove 18, the surface polishing treatment is carried out on the motor rotor, the working efficiency is improved, and the labor intensity of operators is reduced.

Preferably, bear 7 both ends of frame be provided with limiting plate 28, be provided with spacing ring 30 on limiting plate 28 to with the vertical spacing ring 30 that passes of stand 10, bear the frame 7 and rise or descend under the effect of pneumatic cylinder 6, piston rod 24, spacing ring 30 rises or descends along stand 10, can play limiting displacement to the frame 7 that reciprocates the in-process, avoid bearing frame 7 to take place transversely to rock, strengthen polishing roll 27 in to the stability of electric motor rotor polishing in-process, strengthen electric motor rotor's polishing quality.

Preferably, the bearing frame 7 is provided with the fixing hole 29, the fan 31 is installed in the fixing hole 29, the fan 31 can discharge the chips generated in the polishing process of the motor rotor carried by the airflow in the bearing frame 7 from the fixing hole 29, the bearing frame 7 is connected with the dust removal pipeline, the chips generated in the polishing process of the motor rotor can be discharged into the dust removal pipeline, the chips are convenient to collect and treat, the chips are prevented from being scattered randomly, the environmental protection performance is improved, on the other hand, the airflow in the flow can also cool the polishing roller 27 in the polishing process, the work efficiency of the polishing roller 27 is improved, and the polishing quality of the motor rotor is enhanced.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

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, are merely for convenience in describing the present invention and simplifying the 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 thus, should not be construed as limiting the present invention.

The utility model discloses the part that does not relate to all is the same with prior art or can adopt prior art to realize.

Claims

1. The utility model provides a burnishing device is used in electric motor rotor processing, includes operation panel, movable plate, motor one, loading board, roof, pneumatic cylinder, bears frame and motor two, its characterized in that: the operation table is arranged on the bracket, the operation table is vertically provided with an upright post, the operation table is provided with a fixed hole which vertically penetrates through the operation table, the back surfaces of the operation table at two sides of the fixed hole are provided with positioning grooves, the movable plate is provided with a mounting bolt, the movable plate is mounted on the back surface of the operation table, the mounting bolt extends into the positioning grooves, the first motor is mounted on the movable plate, the first motor is provided with a first transmission shaft which vertically penetrates through the fixed grooves and is provided with a driving gear, the two opposite sides of the bearing plate are provided with wheel racks, the bearing plate is provided with bearing grooves, the back surface of the bearing plate is provided with a connecting plate, the connecting plate is provided with a connecting shaft, an auxiliary wheel is arranged on the connecting shaft between the connecting plate and the connecting plate, the auxiliary wheel is placed on the operation table, and the top plate is arranged on the upright post, the hydraulic cylinder is installed on the top plate, a piston rod is arranged on the hydraulic cylinder and vertically penetrates out of the position below the top of the hydraulic cylinder, the bearing frame is connected with the piston rod, a bearing is arranged on the bearing frame, the second motor is installed on the bearing frame, a second transmission shaft is arranged on the second motor, one end of the second transmission shaft is inserted into the bearing, and a polishing roller is arranged on the second transmission shaft.

2. The polishing device for machining the motor rotor as claimed in claim 1, wherein a limiting groove is formed in the front face of the operating platform, and the bottom of the auxiliary wheel extends into the limiting groove.

3. The polishing device for motor rotor machining as claimed in claim 1, wherein the moving plate is provided with a structure that can be adjusted in position on the operating table by means of a mounting bolt.

4. The polishing device for processing the motor rotor as claimed in claim 1, wherein the first motor is a servo motor, and the driving gear on the first transmission shaft is engaged with the rack and pinion on the side edge of the bearing plate.

5. The polishing device for processing the motor rotor as claimed in claim 1, wherein fastening plates are disposed at both ends of the bearing groove of the bearing plate through springs, and the fastening plates are disposed in an arc-shaped configuration.

6. The polishing device for motor rotor machining according to claim 1, wherein the second motor is a servo motor.