A motor rotor surface polishing device

Abstract

The present invention relates to the technical field of motor rotor polishing equipment, and specifically discloses a motor rotor surface polishing equipment, including a polishing frame and a feeding frame, wherein a feeding channel is arranged inside the polishing frame, and a feeding frame is arranged inside the feeding channel. By allowing the motor rotor to rotate inside the connecting frame, the polishing assembly arranged above is cooperated to realize comprehensive polishing processing on the surface of the motor rotor, thereby greatly improving the polishing efficiency of the motor rotor, and controlling the lifting frame to move up and down inside the polishing frame through the driving end of the servo electric cylinder, thereby controlling the polishing rollers 1, 2 and 3 inside the lifting frame to perform polishing processing with different precisions on the surface of the motor rotor, which can reduce the wear of the polishing parts caused by the traditional polishing method on the one hand, and on the other hand, by performing graded polishing processing on the surface of the motor rotor, it can also greatly improve the polishing processing effect on the surface of the motor rotor.

Description

Technical Field

[0001] The invention relates to the technical field of motor rotor polishing equipment, in particular to a motor rotor surface polishing equipment. Background Art

[0002] The rotor is the rotating part of the motor, including the rotor core, rotor winding and shaft. The rotor core is part of the motor magnetic circuit and is used to place the rotor winding. It is generally made of 0.5 mm thick silicon steel sheets. The rotor winding cuts the stator magnetic field to generate induced electromotive force and current, and is forced to rotate the rotor under the action of the rotating magnetic field. The shaft is used to transmit torque and support the weight of the rotor. Since there are burrs and uneven textures on the surface of the newly produced motor rotor, the air gap between the stator and the rotor is increased, which in turn increases the magnetic resistance, increases the no-load current of the motor, and the rated current remains unchanged, which reduces the motor output. Therefore, the surface polishing of the motor rotor needs to ensure a consistent polishing thickness and minimize the air gap between the stator and the rotor. Therefore, the motor rotor needs to be finely polished during production.

[0003] At present, the polishing equipment used for the surface of motor rotors has the problems of low polishing efficiency and unsatisfactory polishing effect. In addition, during the batch polishing process of motor rotor surfaces, the wear of the polishing rollers is large and the motor rotor surface cannot be effectively polished. Therefore, we propose a motor rotor surface polishing equipment. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a motor rotor surface polishing device to solve the above-mentioned technical defects.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a motor rotor surface polishing device, comprising a polishing frame and a feeding frame, wherein a feeding channel is arranged inside the polishing frame, and a feeding frame is arranged inside the feeding channel, two material taking components are arranged on the inner side wall of the feeding channel, a processing inner cavity is arranged inside the polishing frame, and a partition is fixedly arranged at the bottom of the processing inner cavity, material taking grooves are arranged on both sides of the partition, a rotating component is arranged inside the processing inner cavity, and a polishing component is also arranged above the processing inner cavity;

[0006] The rotating assembly includes a transmission frame, a transmission frame is fixedly arranged at the lower part of the processing inner cavity, and a plurality of connecting blocks are fixedly arranged on the surface of the transmission frame, a connecting frame is fixedly arranged on one side of the plurality of connecting blocks, and an electric slide table 2 is fixedly arranged on the front and rear sides of the bottom of the inner wall of the connecting frame, and a limit frame is fixedly arranged on the top of the two electric slide tables 2, and a control frame is rotatably arranged inside the two limit frames;

[0007] The polishing assembly includes a polishing frame, three polishing frames are fixedly arranged above the inner part of the processing cavity, and lifting frames are movably arranged inside the three polishing frames, and polishing roller one, polishing roller two and polishing roller three are rotatably arranged inside the three lifting frames, and the polishing precision of polishing roller one, polishing roller two and polishing roller three increases sequentially, and a servo electric cylinder is fixedly arranged on the top of the inner wall of the polishing frame, and the driving end of the servo electric cylinder is fixedly connected to the top of the lifting frame.

[0008] Furthermore, the material picking assembly includes an electric slide, an electric slide is fixedly provided on one side of the inner wall of the feeding channel, and a movable frame is slidably provided on one side of the electric slide, a telescopic frame is slidably provided on one side of the movable frame through an electric push rod, and a bogie is rotatably provided on one side of the telescopic frame, two material picking claws are slidably provided on the bottom of the bogie through an electric slider, a driving motor is fixedly provided on one side of the telescopic frame, and the output shaft of the driving motor and one side of the bogie are fixedly provided with mutually meshing transmission gears.

[0009] Furthermore, three clamping plates are movably arranged inside the control frame, and the three clamping plates are all driven by a micro electric cylinder arranged inside the control frame.

[0010] Furthermore, a discharging rack is fixedly arranged on one side inside the lifting frame, and the interior of the discharging rack is connected to the polishing paste conveying equipment through a material guiding hose, wherein one side of the three discharging racks is respectively located on one side of polishing roller one, polishing roller two and polishing roller three.

[0011] Furthermore, cleaning scrapers are fixedly arranged inside the three lifting frames, and one side of the three cleaning scrapers is in contact with the surface of the polishing roller one, the polishing roller two and the polishing roller three respectively.

[0012] Furthermore, dust suction ports are provided on both sides of the polishing frame, and side baffles are slidably provided on both sides of the polishing frame through electric sliders, dust suction channels are provided on one side of the two side baffles, and the interiors of the two dust suction channels are respectively connected with the interiors of the two dust suction ports, a dust collecting box is fixedly provided on the back of the polishing machine frame, and the interior of the dust collecting box is connected with the interiors of the three polishing frames through a dust suction pump.

[0013] Furthermore, the polishing method of the motor rotor surface polishing device comprises the following steps:

[0014] Step 1: Use the feeding rack to transport the motor rotor to the bottom of the left material picking assembly. At this time, the two material picking claws on the bogie are facing the feeding rack. Use the electric slide 1 to control the movable frame to move downward until the two material picking claws drop to both sides of the motor rotor. Control the two material picking claws to fix and clamp the motor rotor. Then, use the output shaft of the drive motor to rotate to change the direction of the two material picking claws, and point the motor rotor between the two material picking claws upward. Then, use the electric slide 1 to control the movable frame to move upward, and use the two material picking claws to send the clamped motor rotor into the interior of the connecting frame for limit clamping.

[0015] Step 2: Use the two electric slides inside the connecting frame to control the two limit frames to approach the two ends of the motor rotor until the two ends of the motor rotor enter the inside of the two control frames. At this time, use the three clamping plates inside the two control frames to clamp and fix the end faces of the motor rotor, and then rotate the control frames inside the two limit frames to make the motor rotor rotate inside the connecting frame.

[0016] Step three, drive the motor rotor inside the connecting frame to move to the bottom of the polishing roller one through the transmission frame, use the servo electric cylinder driving end inside the polishing frame to control the lifting frame to move downward until the surface of the polishing roller one inside the lifting frame contacts the surface of the motor rotor, and then control the side baffles on both sides of the polishing frame to move downward, use the two side baffles to block the waste chips generated by the motor rotor during the polishing process, cooperate with the dust suction channel on one side of the two side baffles and the dust suction ports on both sides of the bottom of the polishing frame to absorb the waste chips generated during the polishing process and send them into the dust collecting box for collection, after the polishing process of the motor rotor surface is completed by the polishing roller one, use the polishing roller two and the polishing roller three to perform fine polishing and fine polishing on the surface of the motor rotor in turn;

[0017] Step 4: Finally, the motor rotor inside the rotating assembly is removed by the material gripping claws and then turned and sent into the feeding rack to complete the automatic unloading operation of the motor rotor.

[0018] The beneficial effects achieved by the present invention using the above structure are as follows:

[0019] 1. In the present invention, two material picking assemblies are arranged on the inner wall of the feeding channel, and the material picking assembly on the left is used to load the motor rotor, and the material picking assembly on the right is used to unload the motor rotor, thereby solving the problems of high labor intensity and potential safety hazards in manual loading and unloading operations of the motor rotor.

[0020] 2. In the present invention, the end faces of the motor rotor are clamped and fixed by three clamping plates inside the two control frames, and then the control frames inside the two limit frames are rotated, so that the motor rotor is rotated inside the connecting frame, and the polishing component arranged above is cooperated to realize comprehensive polishing processing on the surface of the motor rotor, which greatly improves the polishing efficiency of the motor rotor.

[0021] 3. In the present invention, the driving end of the servo electric cylinder controls the lifting frame to move up and down inside the polishing frame, thereby controlling the polishing rollers 1, 2 and 3 inside the lifting frame to perform polishing processing with different precisions on the surface of the motor rotor. On the one hand, it can reduce the wear of the polishing parts caused by the traditional polishing method. On the other hand, by performing graded polishing processing on the surface of the motor rotor, it can also greatly improve the polishing processing effect on the surface of the motor rotor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 A schematic diagram of a motor rotor surface polishing device structure according to an embodiment of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of a material handling assembly according to an embodiment of the present invention;

[0025] Figure 3 It is a schematic diagram of the partition plate and the material taking channel structure according to an embodiment of the present invention;

[0026] Figure 4 A schematic diagram of the internal structure of a polishing machine frame according to an embodiment of the present invention;

[0027] Figure 5 A schematic diagram of a transmission frame and a connecting frame structure according to an embodiment of the present invention;

[0028] Figure 6 Schematic diagram of the structures of polishing roller 1, polishing roller 2 and polishing roller 3 according to an embodiment of the present invention;

[0029] Figure 7 It is a schematic diagram of a structure of a driving frame, a lifting frame and a polishing roller according to an embodiment of the present invention.

[0030] In the figure, 1. polishing machine frame; 2. feeding frame; 3. partition; 4. material picking slot; 5. electric slide 1; 6. movable frame; 7. telescopic frame; 8. bogie; 9. material picking claw; 10. driving motor; 11. transmission frame; 12. connecting block; 13. connecting frame; 14. electric slide 2; 15. limit frame; 16. control frame; 17. clamping plate; 18. polishing frame; 19. lifting frame; 20. polishing roller 1; 21. polishing roller 2; 22. polishing roller 3; 23. servo electric cylinder; 24. discharging frame; 25. cleaning scraper; 26. dust suction port; 27. side baffle; 28. dust suction channel; 29. ​​dust collection box. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] Embodiment 1:

[0034] See also Figures 1 to 7 As shown, a motor rotor surface polishing device includes a polishing frame 1 and a feeding frame 2. A feeding channel is arranged inside the polishing frame 1, and a feeding frame 2 is arranged inside the feeding channel. Two material picking assemblies are arranged on the inner wall of the feeding channel. The motor rotor is transported by the feeding frame 2, and the motor rotor is loaded by the material picking assembly on the left, and the motor rotor is unloaded by the material picking assembly on the right, thereby solving the problems of high labor intensity of manual loading and unloading operations of the motor rotor and potential safety hazards when performing loading and unloading operations of the motor rotor.

[0035] Furthermore, a processing cavity is provided inside the polishing machine frame 1, and a partition 3 is fixedly provided at the bottom of the processing cavity, material taking grooves 4 are provided on both sides inside the partition 3, a rotating component is provided inside the processing cavity, and a polishing component is also provided above the processing cavity. The rotating component drives several motor rotors to rotate inside the polishing machine frame 1, and cooperates with the polishing component located above to perform graded polishing treatment on the surfaces of several motor rotors, thereby greatly improving the polishing efficiency and polishing effect of the motor rotor surface.

[0036] Specifically, the material picking assembly includes an electric slide 5, an electric slide 5 is fixedly provided on one side of the inner wall of the feeding channel, and a movable frame 6 is slidably provided on one side of the electric slide 5, a telescopic frame 7 is slidably provided on one side of the movable frame 6 through an electric push rod, and a bogie 8 is rotatably provided on one side of the telescopic frame 7, two material picking claws 9 are slidably provided on the bottom of the bogie 8 through an electric slider, a driving motor 10 is fixedly provided on one side of the telescopic frame 7, and the output shaft of the driving motor 10 and one side of the bogie 8 are fixedly provided with mutually meshing transmission gears, the driving motor 10 controls the bogie 8 to rotate on one side of the telescopic frame 7, thereby changing the direction of the material picking claw 9, thereby realizing the loading and unloading operations of the motor rotor inside the polishing machine frame 1.

[0037] The two material picking claws 9 are used to control the movable frame 6 to move downward until the two material picking claws 9 drop to the two sides of the motor rotor, and the two material picking claws 9 are controlled to fix and clamp the motor rotor. Then, the output shaft of the drive motor 10 is rotated to change the direction of the two material picking claws 9, and the motor rotor between the two material picking claws 9 is directed upward. Then, the movable frame 6 is controlled to move upward by the electric slide 5, and the clamped motor rotor is sent into the interior of the rotating assembly by the two material picking claws 9 for limited clamping, thereby realizing the automatic feeding operation of the motor rotor from the feeding rack 2 to the interior of the polishing frame 1. When the motor rotor is unloaded from the polishing frame 1 to the feeding rack 2, the motor rotor inside the rotating assembly is removed by the material picking claws 9 and then turned to be sent into the interior of the feeding rack 2, thereby completing the automatic unloading operation of the motor rotor.

[0038] In a specific embodiment, the present invention arranges two material picking assemblies on the inner wall of the feeding channel, and utilizes the left material picking assembly to load the motor rotor, while the right material picking assembly to unload the motor rotor, thereby solving the problems of high labor intensity in manual loading and unloading operations of the motor rotor and potential safety hazards in the loading and unloading operations of the motor rotor.

[0039] Specifically, the rotating assembly includes a transmission frame 11, which is fixedly arranged at the lower part of the inner part of the processing cavity, and a plurality of connecting blocks 12 are fixedly arranged on the surface of the transmission frame 11, wherein the transmission frame 11 is rotationally driven by a motor arranged on the back side of the polishing machine frame 1, a connecting frame 13 is fixedly arranged on one side of the plurality of connecting blocks 12, and an electric slide 2 14 is fixedly arranged on the front and rear sides of the bottom of the inner wall of the connecting frame 13, a limiting frame 15 is fixedly arranged on the top of the two electric slides 2 14, and a control frame 16 is rotatably arranged inside the two limiting frames 15, and three clamping plates 17 are movably arranged inside the control frame 16, and the three clamping plates 17 are driven by a micro-electric cylinder arranged inside the control frame 16, wherein a control motor for rotating the control frame 16 is arranged inside the limiting frame 15, and the output shaft of the control motor is provided with a driving gear meshing with the outer peripheral surface of the control frame 16.

[0040] It should be noted that when controlling the rotation of the motor rotor, the material picking assembly is first used to send the motor rotor into the interior of the connecting frame 13, and the two electric slides 14 inside the connecting frame 13 are used to control the two limit frames 15 to approach the two ends of the motor rotor until the two ends of the motor rotor enter the interior of the two control frames 16. At this time, the three clamping plates 17 inside the two control frames 16 are used to clamp and fix the end faces of the motor rotor, and then the control frames 16 inside the two limit frames 15 are rotated, so that the motor rotor is rotated inside the connecting frame 13, and the polishing assembly arranged above is used to realize comprehensive polishing processing on the surface of the motor rotor, which greatly improves the polishing efficiency of the motor rotor.

[0041] Specifically, the polishing assembly includes a polishing frame 18, three polishing frames 18 are fixedly arranged above the inner part of the processing cavity, and the three polishing frames 18 are movably arranged with a lifting frame 19, and the three lifting frames 19 are respectively rotatably arranged with a polishing roller 1 20, a polishing roller 21 and a polishing roller 3 22, and the polishing precision of the polishing roller 1 20, the polishing roller 21 and the polishing roller 3 22 increases in sequence, wherein the lifting frame 19 is provided with a polishing motor for driving the polishing roller 1 20, the polishing roller 21 and the polishing roller 3 22, and the output shaft of the polishing motor controls the polishing roller 1 20, the polishing roller 21 and the polishing roller 3 22 through gear matching. Rotation, a servo electric cylinder 23 is fixedly set on the top of the inner wall of the polishing frame 18, and the driving end of the servo electric cylinder 23 is fixedly connected to the top of the lifting frame 19, and the lifting frame 19 is controlled by the driving end of the servo electric cylinder 23 to move up and down inside the polishing frame 18, thereby controlling the polishing roller 1 20, polishing roller 21 and polishing roller 3 22 inside the lifting frame 19 to perform polishing processing with different precisions on the surface of the motor rotor. On the one hand, it can reduce the wear of the polishing parts caused by the traditional polishing method, and on the other hand, by performing graded polishing processing on the surface of the motor rotor, it can also greatly improve the polishing processing effect on the surface of the motor rotor.

[0042] Furthermore, a discharging rack 24 is fixedly provided on one side inside the lifting frame 19, and the interior of the discharging rack 24 is connected to the polishing paste conveying equipment through a material guiding hose, wherein one side of the three discharging racks 24 is respectively located on one side of polishing roller 1 20, polishing roller 21 and polishing roller 3 22, and polishing paste is coated on the surface of polishing roller 1 20, polishing roller 21 and polishing roller 3 22 through the discharging rack 24, and the polishing paste is used to improve the polishing effect on the surface of the motor rotor.

[0043] Furthermore, a cleaning scraper 25 is fixedly provided inside the three lifting frames 19, and one side of the three cleaning scrapers 25 is in contact with the surface of polishing roller 1 20, polishing roller 21 and polishing roller 3 22 respectively. Dust suction ports 26 are provided on both sides of the polishing frame 18, and side baffles 27 are slidably provided on both sides of the polishing frame 18 through electric sliders, wherein the cleaning scraper 25 is provided with a through groove, and the interior of the through groove is connected with the interior of the dust suction port 26 on one side through a feeding roller, and the waste chips on the surface of the polishing roller are cleaned by the cleaning scraper 25 to ensure the surface cleanliness of the polishing roller, thereby providing a better polishing effect for the motor rotor; a dust suction channel 28 is provided on one side of the two side baffles 27, and the interiors of the two dust suction channels 28 are respectively connected with the interiors of the two dust suction ports 26, and a dust collecting box 29 is fixedly provided on the back of the polishing machine frame 1, and the interior of the dust collecting box 29 is connected with the interiors of the three polishing frames 18 through a dust suction pump.

[0044] It should be noted that when the motor rotor inside the connecting frame 13 is surface polished, the surface of the motor rotor is first roughly polished by the polishing roller 120 inside the left polishing frame 18, and the lifting frame 19 is controlled to move downward by the driving end of the servo electric cylinder 23 inside the polishing frame 18 until the surface of the polishing roller 20 inside the lifting frame 19 contacts the surface of the motor rotor, and then the side baffles 27 on both sides of the polishing frame 18 are controlled to move downward, and the two side baffles 27 are used to block the waste chips generated by the motor rotor during the polishing process, and the dust suction channel 28 on one side of the two side baffles 27 and the dust suction ports 26 on both sides of the bottom of the polishing frame 18 are used to absorb the waste chips generated during the polishing process and send them into the dust collecting box 29 for collection, so as to avoid the waste chips generated during the polishing process from polluting the environment around the equipment. After the polishing process of the motor rotor surface is completed by the polishing roller 120, the surface of the motor rotor is finely polished and finely polished by the polishing roller 21 and the polishing roller 3 22 in turn, which greatly improves the polishing efficiency and polishing effect of the motor rotor.

[0045] Embodiment 2:

[0046] Furthermore, this embodiment specifically discloses a polishing method of a motor rotor surface polishing device, comprising the following steps:

[0047] Step 1, convey the motor rotor to the bottom of the material picking assembly on the left side through the feeding rack 2, at this time, the two material picking claws 9 on the bogie 8 face the feeding rack 2, and use the electric slide 5 to control the movable frame 6 to move downward until the two material picking claws 9 drop to the two sides of the motor rotor, control the two material picking claws 9 to fix and clamp the motor rotor, then use the output shaft of the drive motor 10 to rotate, change the direction of the two material picking claws 9, and point the motor rotor between the two material picking claws 9 upward, then use the electric slide 5 to control the movable frame 6 to move upward, and use the two material picking claws 9 to send the clamped motor rotor into the interior of the connecting frame 13 for limit clamping;

[0048] Step 2: Use the two electric slides 14 inside the connecting frame 13 to control the two limit frames 15 to approach the two ends of the motor rotor until the two ends of the motor rotor enter the inside of the two control frames 16. At this time, use the three clamping plates 17 inside the two control frames 16 to clamp and fix the end faces of the motor rotor, and then rotate the control frames 16 inside the two limit frames 15 to make the motor rotor rotate inside the connecting frame 13.

[0049] Step three, drive the motor rotor inside the connecting frame 13 to move to the bottom of the polishing roller 1 20 through the transmission frame 11, use the servo electric cylinder 23 driving end inside the polishing frame 18 to control the lifting frame 19 to move downward until the surface of the polishing roller 1 20 inside the lifting frame 19 contacts the surface of the motor rotor, and then control the side baffles 27 on both sides of the polishing frame 18 to move downward, use the two side baffles 27 to block the waste chips generated by the motor rotor during the polishing process, cooperate with the dust suction channel 28 on one side of the two side baffles 27 and the dust suction ports 26 on both sides of the bottom of the polishing frame 18 to absorb the waste chips generated during the polishing process and send them into the dust collecting box 29 for collection, after the polishing process of the motor rotor surface is completed by the polishing roller 1 20, use the polishing roller 21 and the polishing roller 3 22 to perform fine polishing and fine polishing on the surface of the motor rotor in turn;

[0050] Step 4: Finally, the motor rotor inside the rotating assembly is removed by the material-taking clamping claw 9 and then turned and fed into the feeding rack 2 to complete the automatic unloading operation of the motor rotor.

[0051] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0053] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0054] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A motor rotor surface polishing device, comprising a polishing frame (1) and a feeding frame (2), wherein a feeding channel is arranged inside the polishing frame (1), and a feeding frame (2) is arranged inside the feeding channel, characterized in that: Two material taking assemblies are arranged on the inner side wall of the feeding channel, a processing inner cavity is arranged inside the polishing machine frame (1), a partition (3) is fixedly arranged at the bottom of the processing inner cavity, material taking grooves (4) are arranged on both sides of the partition (3), a rotating assembly is arranged inside the processing inner cavity, and a polishing assembly is also arranged above the processing inner cavity; The material picking assembly comprises an electric slide (5), an electric slide (5) is fixedly provided on one side of the inner wall of the feeding channel, and a movable frame (6) is slidably provided on one side of the electric slide (5), a telescopic frame (7) is slidably provided on one side of the movable frame (6) via an electric push rod, and a bogie (8) is rotatably provided on one side of the telescopic frame (7), two material picking clamps (9) are slidably provided at the bottom of the bogie (8) via an electric slider, a driving motor (10) is fixedly provided on one side of the telescopic frame (7), and mutually meshing transmission gears are fixedly provided on the output shaft of the driving motor (10) and one side of the bogie (8); The rotating assembly comprises a transmission frame (11), the transmission frame (11) is fixedly arranged at the lower part of the processing inner cavity, and a plurality of connecting blocks (12) are fixedly arranged on the surface of the transmission frame (11), a connecting frame (13) is fixedly arranged on one side of the plurality of connecting blocks (12), and an electric slide table (14) is fixedly arranged on the front and rear sides of the bottom of the inner wall of the connecting frame (13), a limiting frame (15) is fixedly arranged on the top of the two electric slide tables (14), and a control frame (16) is rotatably arranged inside the two limiting frames (15), and three clamping plates (17) are movably arranged inside the control frame (16), and the three clamping plates (17) are driven by a micro electric cylinder arranged inside the control frame (16); The polishing assembly comprises a polishing frame (18), three polishing frames (18) are fixedly arranged above the interior of the processing inner cavity, and lifting frames (19) are movably arranged inside the three polishing frames (18), and polishing roller one (20), polishing roller two (21) and polishing roller three (22) are rotatably arranged inside the three lifting frames (19), and the polishing precisions of polishing roller one (20), polishing roller two (21) and polishing roller three (22) increase in sequence, and a servo electric cylinder (23) is fixedly arranged on the top of the inner wall of the polishing frame (18), and the driving end of the servo electric cylinder (23) is fixedly connected to the top of the lifting frame (19); A discharging rack (24) is fixedly arranged on one side of the interior of the lifting rack (19), and the interior of the discharging rack (24) is connected to the polishing paste conveying device through a material guide hose, wherein one side of the three discharging racks (24) is respectively located on one side of the polishing roller 1 (20), the polishing roller 2 (21) and the polishing roller 3 (22), and a cleaning scraper (25) is also fixedly arranged on the interior of the three lifting racks (19), and one side of the three cleaning scrapers (25) is respectively in contact with the surface of the polishing roller 1 (20), the polishing roller 2 (21) and the polishing roller 3 (22); Dust suction ports (26) are provided on both sides of the polishing frame (18), and side baffles (27) are slidably provided on both sides of the polishing frame (18) via electric sliders; dust suction channels (28) are provided on one side of the two side baffles (27), and the interiors of the two dust suction channels (28) are respectively connected to the interiors of the two dust suction ports (26); a dust collecting box (29) is fixedly provided on the back of the polishing machine frame (1), and the interior of the dust collecting box (29) is connected to the interiors of the three polishing frames (18) via a dust suction pump.

2. A polishing method applied to the motor rotor surface polishing equipment according to claim 1, characterized in that: The following steps are involved: Step 1: The motor rotor is transported to the lower part of the left material picking assembly by the material feeding rack (2). At this time, the two material picking claws (9) on the bogie (8) face the material feeding rack (2). The movable frame (6) is controlled to move downward by the electric slide (5) until the two material picking claws (9) descend to the two sides of the motor rotor. The two material picking claws (9) are controlled to fix and clamp the motor rotor. Then, the output shaft of the driving motor (10) is rotated to change the direction of the two material picking claws (9) so that the motor rotor between the two material picking claws (9) faces upward. Then, the movable frame (6) is controlled to move upward by the electric slide (5), and the clamped motor rotor is sent into the interior of the connecting frame (13) by the two material picking claws (9) for position limiting clamping. Step 2: using two electric slides (14) inside the connecting frame (13) to control the two limit frames (15) to approach the two ends of the motor rotor until the two ends of the motor rotor enter the interior of the two control frames (16); at this time, using three clamping plates (17) inside the two control frames (16) to clamp and fix the end faces of the motor rotor; and then by rotating the control frames (16) inside the two limit frames (15), the motor rotor is rotated inside the connecting frame (13); Step 3, the motor rotor inside the connecting frame (13) is driven by the transmission frame (11) to move to the position directly below the polishing roller 1 (20), and the lifting frame (19) is controlled to move downward by the driving end of the servo electric cylinder (23) inside the polishing frame (18) until the surface of the polishing roller 1 (20) inside the lifting frame (19) contacts the surface of the motor rotor, and then the side baffles (27) on both sides of the polishing frame (18) are controlled to move downward, and the two side baffles (27) are used to block the waste chips generated by the motor rotor during the polishing process, and the waste chips generated during the polishing process are sucked into the dust collecting box (29) by the dust suction channels (28) on one side of the two side baffles (27) and the dust suction ports (26) on both sides of the polishing frame (18) to collect them. After the polishing process of the motor rotor surface is completed by the polishing roller 1 (20), the surface of the motor rotor is finely polished and finely polished by the polishing roller 2 (21) and the polishing roller 3 (22) in turn; Step 4: Finally, the motor rotor inside the rotating assembly is removed by the material gripping claw (9) and then turned and fed into the feeding rack (2), thereby completing the automatic unloading operation of the motor rotor.

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