Motor rotor core lamination device

Abstract

The present invention relates to a motor rotor core lamination device, comprising a workbench, a lower grinding component is fixed on the workbench, a sorting unit is rotatably provided on the upper wall of the lower grinding component, an upper grinding component is provided on the sorting unit, a sleeve unit is provided in the area of ​​the workbench located on the outer side wall of the sorting unit, a telescopic part is fixed on the sleeve unit, and a power mechanism is provided in the middle of the sorting unit. The present invention can stack rotors from different directions through the cooperation between the sorting unit and the sleeve unit, eliminate the same plate error, and avoid error accumulation, and then the upper and lower walls of each rotor are polished through the cooperation between the lower grinding component and the upper grinding component, so as to improve the roughness and cleanliness of the rotor surface, and improve the flatness and magnetic circuit conversion efficiency of the stacked loose pieces.

Description

Technical Field

[0001] The invention belongs to the technical field of motors, and in particular relates to a motor rotor core lamination device. Background Art

[0002] The rotor is one of the core components of the motor. Stacked rotors can improve the strength and height of the rotor, suppress eddy current loss inside the motor, and improve electromagnetic efficiency. The rotor lamination methods include loose lamination, self-fastening point lamination, rivet lamination, and welding lamination. Except for loose lamination, other lamination methods will destroy the basic structure of the original rotor, affect the magnetic circuit structure, and reduce the magnetic circuit conversion efficiency of the motor operation.

[0003] Although the lamination will not destroy the original magnetic circuit structure, it has high requirements on the flatness of the rotor. The following problems still exist during the assembly of lamination:

[0004] (1) The lamination of loose sheets has high requirements on the cleanliness or roughness of the rotor surface. When there are protrusions or impurities on the rotor surface, it will affect the flatness of the overall lamination, resulting in differences in the height of the laminations, which will affect the magnetic circuit conversion efficiency of the rotor;

[0005] (2) The rotor is usually punched by a punch press. The thickness of the same stamped sheet (mostly silicon steel sheet) has errors, which is generally referred to as "same-sheet error" in the industry. The same sheet is punched in the same direction by a punch press to obtain a rotor with the same tilt direction. If the stamped rotors are directly stacked in the original direction, the same-sheet errors will accumulate, causing the stacked rotors to be severely tilted, affecting the magnetic circuit structure, suppressing the motor speed, and causing quality problems. Summary of the invention

[0006] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a motor rotor core lamination device, which at least partially solves the above problems.

[0007] The technical solution adopted by the present invention is as follows: A motor rotor core lamination device proposed by the present invention comprises a workbench, on which a lower grinding assembly is fixed, and the lower grinding assembly is used to grind the lower wall of the rotor to improve the roughness and cleanliness of the lower wall of the rotor;

[0008] Furthermore, a sorting unit is rotatably provided on the upper wall of the lower grinding assembly, and the sorting unit can arrange the stamped rotors in order in different directions so as to facilitate subsequent uniform lamination, thereby reducing the cumulative error after lamination and eliminating the influence of the same plate error;

[0009] Furthermore, the sorting unit is provided with an upper grinding assembly, which is used for grinding the upper wall of the rotor. The upper grinding assembly is fixedly connected to the lower grinding assembly through a bracket, and the upper grinding assembly and the lower grinding assembly are both kept fixed, and the sorting unit rotates between the upper grinding assembly and the lower grinding assembly;

[0010] Furthermore, a sleeve unit is provided on the workbench in an area located on the outer side wall of the sorting unit, and a telescopic member is fixed on the sleeve unit. The sleeve unit can slide back and forth under the drive of the telescopic member. The sleeve unit is used to sleeve the polished and sorted rotors together so that the rotors are stacked from different directions.

[0011] Furthermore, a power mechanism is provided in the middle of the sorting unit, and the power mechanism drives the sorting unit to rotate relative to the lower grinding assembly and the upper grinding assembly, thereby achieving grinding of the rotor.

[0012] Further, the lower grinding assembly includes a chassis and a lower grinding wheel, the chassis is fixed on the workbench, the lower grinding wheel is rotated in a circular array in the upper wall of the chassis, the vertex height of the lower grinding wheel is adapted to the height of the upper wall of the chassis, and the type of the lower grinding wheel can be selected according to needs, and can be a screen brush wheel or a grinding wheel;

[0013] Furthermore, the upper grinding assembly includes a pressure plate and an upper grinding wheel, the pressure plate is arranged on the sorting unit, the upper grinding wheels rotate in a circular array within the bottom wall of the pressure plate, the lowest point height of the upper grinding wheel is adapted to the height of the lower wall of the pressure plate, and the type of the upper grinding wheel is the same as that of the lower grinding wheel.

[0014] Further, the power mechanism includes a motor, a lower driving wheel and an upper driving wheel, the motor is arranged on the workbench, the output shaft of the motor passes through the lower grinding assembly, the upper grinding assembly and the sorting unit, the lower driving wheel is arranged on the motor output shaft in the area below the sorting unit, and the upper driving wheel is arranged on the motor output shaft in the area above the sorting unit;

[0015] Furthermore, the lower driving wheel is connected to the axle of the lower grinding wheel through the lower driven wheel, and when the lower driving wheel rotates, it will drive the lower grinding wheel to rotate, thereby grinding the lower wall of the rotor. The upper driving wheel is connected to the axle of the upper grinding wheel through the upper driven wheel, and when the upper driving wheel rotates, it will drive the upper grinding wheel to rotate, thereby grinding the upper wall of the rotor.

[0016] Furthermore, the sorting unit includes a sorting disk and a limiting disk, the sorting disk is rotatably arranged on the upper wall of the lower grinding assembly, the sorting disk is fixedly connected to the motor of the power mechanism, the thickness of the sorting disk is adapted to the rotor, the sorting disk rotates with the motor, and the sorting disk is arrayed with U-shaped grooves, and each group of the U-shaped grooves is linearly distributed along the radial direction of the sorting disk;

[0017] Furthermore, the limiting plate is hinged in the U-shaped groove. When there is no load below the limiting plate, the limiting plate can rotate downward under the action of gravity until the side wall of the limiting plate fits with the side wall of the U-shaped groove, so that the limiting plate is in a vertical state, and the contour formed by the U-shaped groove and the limiting plate matches the shape of the rotor;

[0018] Furthermore, in order to keep the rotor fixed during grinding and rotation, a pin is detachably installed on the limit plate. The shape of the pin is adapted to the rotor. The pin can be embedded in the hollow hole of the rotor. The pin can be replaced according to the difference of the rotor. After the pin is embedded in the rotor, the rotor cannot rotate, so that the angle of the rotor on the sequencing unit always remains unchanged.

[0019] Furthermore, a square groove is arranged in a circumferential array on the upper wall of the chassis, a central groove is arranged in the center of the chassis, an inclined groove is arranged in an area of ​​the upper wall of the chassis away from the square groove, and a flange is arranged on an outer side wall of the inclined groove;

[0020] Furthermore, the flange side wall is hinged with a baffle, which is blocked by the end face of the inclined slot side wall. The baffle can only rotate outward but cannot rotate toward the inclined slot. When the limit plate follows the sequencing plate to move to the area above the inclined slot, the chassis no longer provides support for the limit plate. The limit plate rotates downward to a vertical state under the action of gravity, and the rotor fixed by the pin in the limit plate rotates synchronously to a vertical state, so that the rotor can be removed after the sleeve unit punctures.

[0021] Furthermore, the lower grinding wheel is rotatably disposed in square groove one, and the lower driving wheel and the lower driven wheel are located in central groove one.

[0022] Furthermore, the bottom wall of the pressure plate is provided with two square grooves in a circumferential array, the center of the pressure plate is provided with a second central groove, and the bottom wall of the pressure plate is provided with a feeding groove in an area away from the second square groove, and the feeding groove is staggered with the inclined groove;

[0023] Further, the upper grinding wheel is rotatably arranged in the second square groove, and the upper driving wheel and the upper driven wheel are located in the second central groove;

[0024] Furthermore, an array of sliding forks are slidably provided on both sides of the loading trough, and the sliding forks are used to clamp the incoming rotors to be polished and stacked after stamping. The sliding forks can slide telescopically toward the upper side wall of the trough to adapt to rotors of different sizes.

[0025] Furthermore, in order to prevent the sleeve unit from interfering with the rotor when it is extended and to enable the rotor to be removed when it is withdrawn, the sleeve unit includes a sleeve mandrel, which is arranged on the telescopic member. The sleeve mandrel moves back and forth horizontally with the telescopic member. An avoidance groove is provided in a circumferential array at one end of the sleeve mandrel close to the sorting unit. A wedge block is hinged in the avoidance groove. A spring is connected between the wedge block and the avoidance groove. The spring always pushes the wedge block outward. When the wedge block is opened to the maximum angle, the wedge block fits against the side wall of the avoidance groove, and one side of the wedge block is perpendicular to the cylindrical surface of the sleeve mandrel.

[0026] Preferably, in order to further improve the stability of the rotor after puncturing and taking materials, a positioning column can be configured on the outside of the sleeve core rod. The positioning column is compatible with the type of the rotor. The positioning column adopts the same design concept as the bayonet pin and can be embedded in the rotor to fix the rotor.

[0027] The beneficial effects achieved by the present invention using the above structure are as follows:

[0028] 1. The sorting unit and the sleeve unit cooperate with each other to stack the rotors from different directions, so that the errors of the same plate can be eliminated, the error accumulation can be avoided, and the flatness of the rotor after overall stacking can be improved;

[0029] 2. The lower grinding assembly and the upper grinding assembly cooperate with each other to grind the upper and lower walls of each rotor, improve the roughness and cleanliness of the rotor surface, improve the flatness of the stacked pieces, and improve the magnetic circuit conversion efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0031] Figure 2 for Figure 1 Broken view of section view;

[0032] Figure 3 for Figure 1 Fracture view of exploded diagram;

[0033] Figure 4 for Figure 2 A magnified view of part I;

[0034] Figure 5 is a cross-sectional view of the sorting unit;

[0035] Figure 6 for Figure 5 Enlarged view of part II;

[0036] Figure 7 It is a structural schematic diagram of the chassis;

[0037] Figure 8 It is a structural schematic diagram of a pressure plate;

[0038] Fig. 9 It is a schematic diagram of the state of the sleeve insertion unit when puncturing into the limit plate;

[0039] Fig.10 for Fig. 9 A magnified view of part III;

[0040] Fig.11 It is a fracture view of the cross-section view of the sleeve unit.

[0041] Among them, 1. workbench, 2. lower grinding assembly, 3. upper grinding assembly, 4. sorting unit, 5. sleeve unit, 6. telescopic part, 7. power mechanism, 8. chassis, 9. lower grinding wheel, 10. pressure plate, 11. upper grinding wheel, 12. motor, 13. lower driving wheel, 14. lower driven wheel, 15. upper driving wheel, 16. upper driven wheel, 17. sequencing plate, 18. U-shaped groove, 19. limit plate, 20. latch, 21. square groove one, 22. central groove one, 23. inclined groove, 24. flange, 25. baffle, 26. central groove two, 27. square groove two, 28. feeding trough, 29. sliding fork, 30. sleeve core rod, 31. avoidance groove, 32. wedge block, 33. spring.

[0042] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0044] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0045] like Figure 1 As shown, a motor rotor core lamination device proposed by the present invention comprises a workbench 1, on which a lower grinding assembly 2 is fixed, and the lower grinding assembly 2 is used for grinding the lower wall of the rotor to improve the roughness and cleanliness of the lower wall of the rotor;

[0046] The upper wall of the lower grinding assembly 2 is rotatably provided with a sorting unit 4, which can arrange the stamped rotors in order in different directions for subsequent uniform lamination, thereby reducing the cumulative error after lamination and eliminating the influence of the same plate error;

[0047] An upper grinding assembly 3 is provided on the sorting unit 4, and the upper grinding assembly 3 is used for grinding the upper wall of the rotor. The upper grinding assembly 3 is fixedly connected to the lower grinding assembly 2 through a bracket (not marked in the drawings), and the upper grinding assembly 3 and the lower grinding assembly 2 are both kept fixed, and the sorting unit 4 rotates between the upper grinding assembly 3 and the lower grinding assembly 2;

[0048] A sleeve unit 5 is provided on the workbench 1 in the area on the outer side wall of the sorting unit 4. A telescopic member 6 is fixed on the sleeve unit 5. The sleeve unit 5 can slide back and forth under the drive of the telescopic member 6. The sleeve unit 5 is used to sleeve the polished and sorted rotors together so that the rotors can be stacked from different directions.

[0049] A power mechanism 7 is provided in the middle of the sorting unit 4, and the power mechanism 7 drives the sorting unit 4 to rotate relative to the lower grinding assembly 2 and the upper grinding assembly 3, so as to grind the rotor.

[0050] like Figure 3 As shown, the lower grinding assembly 2 includes a chassis 8 and a lower grinding wheel 9. The chassis 8 is fixed on the workbench 1. The lower grinding wheels 9 rotate in a circular array in the upper wall of the chassis 8. The vertex height of the lower grinding wheel 9 is adapted to the height of the upper wall of the chassis 8. The type of the lower grinding wheel 9 can be selected according to needs, and can be a screen brush wheel or a grinding wheel.

[0051] The upper grinding assembly 3 includes a pressure plate 10 and an upper grinding wheel 11. The pressure plate 10 is arranged on the sorting unit 4. The upper grinding wheel 11 rotates in a circular array within the bottom wall of the pressure plate 10. The lowest point height of the upper grinding wheel 11 is adapted to the height of the lower wall of the pressure plate 10. The type of the upper grinding wheel 11 is the same as that of the lower grinding wheel 9.

[0052] like Figure 2-Figure 4 As shown, the power mechanism 7 includes a motor 12, a lower driving wheel 13 and an upper driving wheel 15. The motor 12 is arranged on the workbench 1. The output shaft of the motor 12 passes through the lower grinding assembly 2, the upper grinding assembly 3 and the sorting unit 4. The lower driving wheel 13 is arranged on the output shaft of the motor 12 in an area below the sorting unit 4, and the upper driving wheel 15 is arranged on the output shaft of the motor 12 in an area above the sorting unit 4.

[0053] The lower driving wheel 13 is connected to the axle of the lower grinding wheel 9 through the lower driven wheel 14. When the lower driving wheel 13 rotates, it will drive the lower grinding wheel 9 to rotate, thereby grinding the lower wall of the rotor. The upper driving wheel 15 is connected to the axle of the upper grinding wheel 11 through the upper driven wheel 16. When the upper driving wheel 15 rotates, it will drive the upper grinding wheel 11 to rotate, thereby grinding the upper wall of the rotor.

[0054] like Figure 5 and Figure 6 As shown, the sorting unit 4 includes a sorting disk 17 and a limiting disk 19. The sorting disk 17 is rotatably arranged on the upper wall of the lower grinding assembly 2. The sorting disk 17 is fixedly connected to the motor 12 of the power mechanism 7. The sorting disk 17 rotates with the motor 12. The thickness of the sorting disk 17 is adapted to the rotor. The sorting disk 17 is arrayed with U-shaped grooves 18, and each group of U-shaped grooves 18 is linearly distributed along the radial direction of the sorting disk 17.

[0055] The limiting plate 19 is hinged in the U-shaped groove 18. When there is no load below the limiting plate 19, the limiting plate 19 can rotate downward under the action of gravity until the side wall of the limiting plate 19 fits with the side wall of the U-shaped groove 18, so that the limiting plate 19 is in a vertical state, and the contour formed by the U-shaped groove 18 and the limiting plate 19 is adapted to the rotor shape. In this embodiment, the rotor is shown to be circular. When the rotor is placed in the contour formed by the U-shaped groove 18 and the limiting plate 19, the rotor is rotated 90 degrees in sequence to be placed, so as to eliminate the same plate error during subsequent lamination;

[0056] In order to keep the rotor fixed during grinding and rotation, a pin 20 is detachably installed on the limit plate 19. The shape of the pin 20 is adapted to the rotor. The pin 20 can be embedded in the hollow hole of the rotor. The pin 20 can be replaced according to the difference of the rotor. After the pin 20 is embedded in the rotor, the rotor cannot rotate, so that the angle of the rotor on the sequencing unit always remains unchanged.

[0057] like Figure 7 As shown, a square groove 21 is arranged in a circumferential array on the upper wall of the chassis 8, a central groove 22 is arranged in the center of the chassis 8, an oblique groove 23 is arranged in the area of ​​the upper wall of the chassis 8 away from the square groove 21, and a flange 24 is arranged on the outer side wall of the oblique groove 23;

[0058] like Fig. 9 and Fig.10 As shown, the side wall of the flange 24 is hinged with a baffle 25, which is blocked by the end face of the side wall of the inclined groove 23. The baffle 25 can only rotate outward but cannot rotate toward the inclined groove 23. When the limit plate 19 follows the sequencing plate 17 to move to the area above the inclined groove 23, the chassis 8 no longer provides support for the limit plate 19. The limit plate 19 rotates downward to a vertical state under the action of gravity, and the rotor fixed by the pin 20 in the limit plate 19 rotates synchronously to a vertical state, so that the rotor can be removed after the sleeve unit 5 punctures.

[0059] Reference Figure 3 and Figure 4 As shown, the lower grinding wheel 9 is rotatably disposed in the square groove 1 21 , and the lower driving wheel 13 and the lower driven wheel 14 are located in the central groove 1 22 .

[0060] like Figure 8 As shown, the bottom wall of the pressure plate 10 is provided with a square groove 27 in a circumferential array, the center of the pressure plate 10 is provided with a central groove 26, and the bottom wall of the pressure plate 10 is provided with a feeding groove 28 in an area away from the square groove 27. Figure 1 and Figure 3 As shown, the feeding chute 28 and the chute 23 are staggered;

[0061] The upper grinding wheel 11 is rotatably disposed in the second square groove 27, and the upper driving wheel 15 and the upper driven wheel 16 are located in the second central groove 26;

[0062] An array of sliding forks 29 are provided on both sides of the loading trough 28 for sliding movement. The sliding forks 29 are used to clamp the incoming rotors to be polished and stacked after stamping. The sliding forks 29 can slide and extend toward the side wall of the upper trough 28 to accommodate rotors of different sizes. In the present embodiment, the sliding forks 29 are arranged in four groups, a total of eight, which can clamp four groups of rotors at the same time. Each group of rotors is placed in a different direction. Assuming that the direction of the stamping machine when stamping the rotor is 0 degrees, the placement directions of the subsequent three groups of rotors should be 90 degrees, 180 degrees and 270 degrees respectively. When the four groups of rotors are stacked in sequence, the staggered rotors can eliminate the same plate error.

[0063] like Fig.10 and Fig.11As shown, in order to prevent the sleeve unit 5 from interfering with the rotor when it is extended and to enable the rotor to be taken away when it is withdrawn, the sleeve unit 5 includes a sleeve mandrel 30, which is arranged on the telescopic member 6. The sleeve mandrel 30 moves back and forth horizontally with the telescopic member 6. An avoidance groove 31 is arranged in a circumferential array at one end of the sleeve mandrel 30 close to the sorting unit 4. A wedge block 32 is hingedly arranged in the avoidance groove 31. A spring 33 is connected between the wedge block 32 and the avoidance groove 31. The spring 33 always pushes the wedge block 32 outward. When the wedge block 32 is opened to the maximum angle, the wedge block 32 fits against the side wall of the avoidance groove 31, and one side of the wedge block 32 is perpendicular to the cylindrical surface of the sleeve mandrel 30. In this embodiment, when the sleeve mandrel 30 is extended, the latch 2 The rotor on 0 contacts with the wedge block 32, and the wedge block 32 is compressed and retracted into the avoidance groove 31, so that the sleeve mandrel 30 can pass through the rotor smoothly; when the sleeve mandrel 30 is withdrawn outward, the side wall of the wedge block 32 fits with the rotor, and the rotor applies a thrust to the wedge block 32 away from the spring 33. The wedge block 32 is blocked by the avoidance groove 31 and cannot rotate anymore. The wedge block 32 peels the rotor from the latch 20, thereby smoothly removing the rotor. The angle of the rotor will not change significantly under the action of gravity and can remain relatively fixed; when removing, the rotor pushes the baffle plate 25 to rotate outward, and each group of rotors is stacked in turn at different angles and directions. When puncturing and taking materials next time, the rotor that has taken materials will be blocked by the baffle plate 25 and cannot enter the chute 23.

[0064] In order to further improve the stability of the rotor after puncturing and taking materials, a positioning column (not shown in the drawings) can be configured on the outside of the sleeve core rod 30. The positioning column is compatible with the type of the rotor. The positioning column adopts the same design concept as the pin 20 and can be embedded in the rotor to fix the rotor.

[0065] The specific working principle is as follows:

[0066] In this embodiment, the rotors punched from the same silicon steel plate are divided into four groups and placed. The initial punching direction of the rotors is set to 0 degrees. The direction of one group of rotors is kept unchanged, and three of the groups of rotors are rotated 90 degrees, 180 degrees and 270 degrees in turn, so that the directions of the rotors of each group are staggered. When the final stacking is completed, the rotors of each group are also stacked in sequence while maintaining this direction, thereby eliminating the "same plate error" generated when the same silicon steel plate is stacked.

[0067] After the direction of each group of rotors is adjusted, each group of rotors is placed in the sliding fork 29 in turn. The sliding fork 29 can fix the rotor to prevent it from shaking in the horizontal plane. After the loading is completed, the motor 12 is started.

[0068] The motor 12 directly drives the sorting disk 17 to rotate. When the U-shaped groove 18 on the sorting disk 17 rotates to the feeding groove 28, the rotor at the bottom in the sliding fork 29 is no longer supported by the chassis 8. The rotor at the bottom falls into the U-shaped groove 18 under the action of gravity and the pressure of the upper rotor, and the bayonet 20 can be embedded in the hollow hole of the rotor to fix the rotor in the horizontal direction. The rotor can no longer shake. Because the thickness of the rotor is adapted to the thickness of the sorting disk 17, only one piece of rotor can be dropped from each group; after the rotor falls into the U-shaped groove 18, the rotor in the U-shaped groove 18 will rotate with the sorting disk 17.

[0069] When the motor 12 rotates, it drives the lower grinding wheel 9 to rotate through the lower driving wheel 13 and the lower driven wheel 14, and drives the upper grinding wheel 11 to rotate through the upper driving wheel 15 and the upper driven wheel 16. When the rotor rotates to the area of ​​the upper grinding wheel 11 and the lower grinding wheel 9, the upper and lower walls of the rotor are polished by the upper grinding wheel 11 and the lower grinding wheel 9 at the same time, and the upper and lower walls of the rotor are polished to improve their surface roughness and flatness, thereby preventing the occurrence of flatness deviation during subsequent lamination.

[0070] During the continuous rotation of the sequencing disk 17, the rotor will undergo multiple grinding processes. When the rotor rotates to the top of the inclined slot 23, the chassis 8 no longer supports the limit disk 19. The limit disk 19 and the rotor therein rotate downward under the action of gravity until the limit disk 19 fits against the side wall of the U-shaped slot 18, so that the limit disk 19 is in a vertical state, and the rotor also remains vertical at this time.

[0071] The wedge block 32 is blocked by the avoidance groove 31 and cannot rotate any more. The wedge block 32 will peel the rotor from the bayonet 20 to the sleeve mandrel 30, thereby smoothly removing the rotor. When the removed rotor contacts the baffle plate 25, the baffle plate 25 is forced to rotate outward until all the rotors are withdrawn from the chute 23. Finally, the rotors in different directions are sequentially sleeved on the sleeve mandrel 30, and each group of rotors is stacked in different angular directions.

[0072] When the material is punctured and taken out next time, the rotor that has taken out the material will be blocked by the baffle 25 and cannot enter the chute 23, which will not affect the material taking out of the rotor in the chute 23.

[0073] If it is necessary to better stabilize the angle of the rotor after taking the material, a positioning column can be installed on the outside of the sleeve mandrel 30. When the sleeve mandrel 30 moves into the chute 23 to take the material, the positioning column will penetrate the hollow hole on the rotor, making the rotor unable to rotate, thereby keeping the rotor angle fixed.

[0074] After all the rotors have been sleeved, the rotors on the sleeved mandrel 30 are removed, and a rotor assembly stacked in sequence according to a set angle can be obtained.

[0075] 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.

[0076] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

[0077] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A motor rotor core lamination device, characterized in that: include: Workbench (1); A lower grinding assembly (2) for grinding the lower wall of the rotor, arranged on the workbench (1); A sorting unit (4) for arranging the rotors is rotatably disposed on the lower grinding assembly (2), the sorting unit (4) comprising a sorting disk (17) and a limiting disk (19), the sorting disk (17) being rotatably disposed on the upper wall of the lower grinding assembly (2), the sorting disk (17) being provided with an array of U-shaped grooves (18), and each group of the U-shaped grooves (18) being linearly distributed along the radial direction of the sorting disk (17), and the limiting disk (19) being hinged in the U-shaped groove (18); An upper grinding assembly (3) for grinding the upper wall of the rotor, arranged on the sorting unit (4), the upper grinding assembly (3) being fixedly connected to the lower grinding assembly (2) via a bracket; A sleeve inserting unit (5) for inserting a sleeve rotor is arranged on the workbench (1) in an area located on the outer wall of the sorting unit (4), a telescopic member (6) is fixed to the sleeve inserting unit (5), the sleeve inserting unit (5) comprises a sleeve inserting mandrel (30), the sleeve inserting mandrel (30) is arranged on the telescopic member (6), a circumferential array of avoidance grooves (31) is arranged at one end of the sleeve inserting mandrel (30) close to the sorting unit (4), a wedge block (32) is hingedly arranged in the avoidance groove (31), and a spring (33) is connected between the wedge block (32) and the avoidance groove (31); and a power mechanism (7) disposed in the middle of the sorting unit (4); The lower grinding assembly (2) comprises a chassis (8) and a lower grinding wheel (9), wherein the chassis (8) is fixed on the workbench (1), and the lower grinding wheels (9) rotate in a circular array within the upper wall of the chassis (8), and the top height of the lower grinding wheel (9) is adapted to the height of the upper wall of the chassis (8); The upper grinding assembly (3) comprises a pressure plate (10) and an upper grinding wheel (11); the pressure plate (10) is arranged on the sorting unit (4); the upper grinding wheels (11) rotate in a circular array within the bottom wall of the pressure plate (10); the lowest point height of the upper grinding wheels (11) matches the height of the lower wall of the pressure plate (10); The power mechanism (7) comprises a motor (12), a lower driving wheel (13) and an upper driving wheel (15); the motor (12) is arranged on the workbench (1); the output shaft of the motor (12) passes through the lower grinding assembly (2), the upper grinding assembly (3) and the sorting unit (4); the lower driving wheel (13) is arranged on the output shaft of the motor (12) in an area below the sorting unit (4); the upper driving wheel (15) is arranged on the output shaft of the motor (12) in an area above the sorting unit (4); the lower driving wheel (13) is connected to the wheel shaft of the lower grinding wheel (9) via the lower driven wheel (14); the upper driving wheel (15) is connected to the wheel shaft of the upper grinding wheel (11) via the upper driven wheel (16); and the sorting disk (17) is fixedly connected to the motor (12); The motor (12) drives the sorting disk (17) to rotate, so that the rotor falls into the U-shaped groove (18), and the rotor rotates along with the sorting disk (17). When the motor (12) continues to rotate, the lower grinding wheel (9) is driven to rotate through the lower driving wheel (13) and the lower driven wheel (14), and the upper grinding wheel (11) is driven to rotate through the upper driving wheel (15) and the upper driven wheel (16). The lower grinding wheel (9) and the upper grinding wheel (11) grind the upper and lower walls of the rotor in the limiting disk (19) at the same time. When the limiting disk (19) moves into the U-shaped groove (18) and is adjusted to a vertical state, the telescopic member (6) is started and drives the sleeve-piercing mandrel (30) to pass through the rotor in the limiting disk (19) to remove the rotor.

2. The motor rotor core lamination device according to claim 1, characterized in that: A latch pin (20) is detachably mounted on the limiting plate (19), and the shape of the latch pin (20) is adapted to the rotor.

3. The motor rotor core lamination device according to claim 2, characterized in that: The upper wall of the chassis (8) is provided with a square groove (21) in a circumferential array, the center of the chassis (8) is provided with a central groove (22), the upper wall of the chassis (8) is provided with an inclined groove (23) in a region away from the square groove (21), the outer side wall of the inclined groove (23) is provided with a flange (24), and the side wall of the flange (24) is hinged with a baffle (25).

4. The motor rotor core lamination device according to claim 3, characterized in that: The bottom wall of the pressure plate (10) is provided with two square grooves (27) in a circumferential array, the center of the pressure plate (10) is provided with a second central groove (26), and the bottom wall of the pressure plate (10) is provided with a loading groove (28) in an area away from the second square groove (27), and the loading groove (28) is staggered with the inclined groove (23).

5. The motor rotor core lamination device according to claim 4, characterized in that: The lower grinding wheel (9) is rotatably disposed in the square groove one (21), the lower driving wheel (13) and the lower driven wheel (14) are located in the central groove one (22), the upper grinding wheel (11) is rotatably disposed in the square groove two (27), and the upper driving wheel (15) and the upper driven wheel (16) are located in the central groove two (26).

6. The motor rotor core lamination device according to claim 5, characterized in that: Sliding forks (29) distributed in an array are slidably provided on both sides of the loading trough (28).

7. The motor rotor core lamination device according to claim 1, characterized in that: A positioning column is arranged on the outer side of the sleeve-through core rod (30), and the positioning column is adapted to the type of the rotor.

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