A motor skew rotor rotary mold positioning device

Abstract

The present invention relates to the technical field of motor manufacturing processes, and discloses a rotary die positioning device for a motor skew rotor, comprising a progressive die lower die, a punch fixing plate, and an upper die base, wherein the punch fixing plate is provided with a punch hole, the end of the progressive die lower die is provided with a discharge hole, a first lifting bracket is provided below the discharge hole, and a rotary positioner is provided above the punch hole and at the bottom of the first lifting bracket. The advantages of the present invention over the prior art are that the rotary positioner can form a self-balancing torque at a specific angle through hydraulic oil, and after rotating into position, the hydraulic system automatically maintains the angle, eliminating positioning drift caused by gear clearance and mechanical vibration, and can form an oil film support system, thereby minimizing mechanical contact of rotating parts, further improving positioning accuracy, and at the same time minimizing mechanical wear of rotating parts, significantly improving the life of the device, reducing maintenance frequency, and delaying the reduction in positioning accuracy caused by mechanical wear.

Description

Technical Field

[0001] The present invention relates to the technical field of motor manufacturing technology, and in particular to a motor skew rotor rotary die positioning device. Background Art

[0002] The production process of motor skew rotors (also known as skewed slot rotors) is a core technology designed to optimize the motor magnetic field distribution and reduce harmonic torque and electromagnetic noise.

[0003] Conventional motor rotors require stacking and riveting processing using progressive dies and corresponding stamping machines. When this production method is used to produce skew rotors, the dies at some workstations need to be able to rotate a specific angle before each stamping. Current rotary dies rely on stepper motors and encoders to achieve high-precision rotation, but the positioning after rotation relies on the stepper motor's own mechanical self-locking structure. Gear clearance and mechanical vibration during processing can easily cause positioning drift, resulting in limited positioning effect.

[0004] In addition, the various current positioning methods are prone to mechanical wear, which will continuously reduce positioning accuracy as the equipment is used, requiring frequent downtime maintenance to maintain equipment performance. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that the rotation positioning accuracy of the existing skew rotor processing mold is limited, and a motor skew rotor rotation mold positioning device is provided.

[0006] In order to solve the above technical problems, the technical solution provided by the present invention is: a motor skew rotor rotary mold positioning device, including a progressive die lower die, a punch fixing plate and an upper die base, a punch fixing plate is provided with a slot hole, the end of the progressive die lower die is provided with a discharge hole, a first lifting bracket is provided below the discharge hole, and a rotary positioner is provided above the slot hole and at the bottom of the first lifting bracket.

[0007] The rotary positioner includes an encoder, a rotary motor, a transmission box, a lower positioning seat, an upper positioning seat and a positioning sleeve, wherein the positioning sleeve is rotated and arranged in the lower positioning seat, the upper positioning seat is buckled and arranged above the lower positioning seat, a first annular oil chamber is arranged on the top of the lower positioning seat, a plurality of slit-shaped oil outlet grooves are arranged around the top of the first annular oil chamber, a second annular oil chamber is arranged at the bottom of the upper positioning seat, a plurality of slit-shaped oil return grooves are arranged around the bottom of the second annular oil chamber, a plurality of guide blocks are arranged around the middle of the positioning sleeve and extend between the first annular oil chamber and the second annular oil chamber, the number of oil outlet grooves, oil return grooves and guide blocks is equal, the oil outlet grooves and oil return grooves are staggered, one side of the guide block is set as a long inclined plane, and the other side is set as a short inclined plane, wherein the bottom of the long inclined plane points to the oil outlet groove, and the top points to the oil return groove, the inclination angles of the short inclined plane and the long inclined plane are equal and the directions are opposite.

[0008] Furthermore, a first oil supply interface is provided on the top of the lower positioning seat, and a first oil return interface is provided on the bottom of the upper positioning seat. The first oil supply interface is connected to the first annular oil cavity, and the first oil return interface is connected to the second annular oil cavity.

[0009] Furthermore, the bottom of the positioning sleeve is provided with a downwardly protruding frustum, the bottom of the lower positioning seat is provided with a first annular oil groove that fits with the bottom end face of the positioning sleeve, a second annular oil groove that fits with the side face of the frustum, and a third annular oil groove that fits with the conical surface of the frustum, and a third annular oil chamber and a fourth annular oil chamber are respectively provided around the bottom of the lower positioning seat, wherein the third annular oil chamber is provided with a plurality of first connecting ports that are respectively connected with the first annular oil groove and the second annular oil groove, and the fourth annular oil chamber is provided with a plurality of second connecting ports that are connected with the third annular oil groove, and a second oil return interface is respectively provided at the top of the lower positioning seat, the second oil supply interface is connected with the third annular oil chamber, and the second oil return interface is connected with the fourth annular oil chamber.

[0010] Furthermore, a convex ring is provided on the top of the positioning sleeve, and a fourth annular oil groove is provided on the top of the upper positioning seat, which is fitted with the bottom surface of the convex ring, a fifth annular oil groove is fitted with the side surface of the top of the positioning sleeve, and a sixth annular oil groove is located below the fifth annular oil groove. A fifth annular oil chamber and a sixth annular oil chamber are respectively provided around the top of the upper positioning seat, wherein the fifth annular oil chamber is provided with a plurality of third connecting ports which are respectively connected to the fourth annular oil groove and the fifth annular oil groove, and the sixth annular oil chamber is provided with a plurality of fourth connecting ports which are connected to the sixth annular oil groove. A third oil supply interface and a third oil return interface are respectively provided on the top of the upper positioning seat, the third oil supply interface is connected to the fifth annular oil chamber, and the third oil return interface is connected to the sixth annular oil chamber.

[0011] Furthermore, a connecting flange is provided on the top of the positioning sleeve, and the connecting flange is simultaneously connected to the output shaft of the transmission box and the code disk of the encoder, and the output shaft of the rotary motor is connected to the input shaft of the transmission box.

[0012] Furthermore, a plurality of vertical through holes are provided inside the positioning sleeve, and guide bushings are embedded in the upper and lower ends of the through holes.

[0013] Furthermore, a notching tool that slides vertically is provided in the notching hole, a discharge positioning column that slides vertically is provided in the discharge hole, and a plurality of guide columns that cooperate with guide bushings are provided on the top of the notching tool and the bottom of the discharge positioning column.

[0014] Furthermore, the upper die seat is provided with an annular sliding pad located directly above the punching hole, the top of the sliding pad supports a turntable, the center bottom of the turntable is fixedly connected to the guide column, and a pressure plate is provided above the turntable, which is fixedly connected to the upper die seat.

[0015] Furthermore, a second lifting bracket is provided below the first lifting bracket, the first lifting bracket is provided with an electrically liftable discharge support plate, and the second lifting bracket is provided with a positioning column support plate, which supports the bottom of the guide column.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] The rotary positioner can generate self-balancing torque at a specific angle through hydraulic oil. After rotating into position, the hydraulic system automatically maintains the angle, eliminating positioning drift caused by gear clearance and mechanical vibration.

[0018] It can form an oil film support system similar to a hydraulic floating bearing, minimizing the mechanical contact of rotating parts and further improving positioning accuracy.

[0019] The rotary positioner and oil film support system can minimize the mechanical wear of rotating parts, significantly increase the life of the device, reduce maintenance frequency, and delay the reduction in positioning accuracy caused by mechanical wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 It is a structural schematic diagram of the first lifting bracket of the present invention.

[0022] Figure 3 It is a structural schematic diagram of the punching hole of the present invention.

[0023] Figure 4 It is a schematic diagram of the present invention when it works.

[0024] Figure 5 yes Figure 4 Schematic diagram of the structure at point a.

[0025] Figure 6 It is a structural schematic diagram of the rotary positioner of the present invention.

[0026] Figure 7 It is a structural schematic diagram of the lower positioning seat of the present invention.

[0027] Figure 8 It is a structural schematic diagram of the upper positioning seat of the present invention.

[0028] Figure 9 It is a structural schematic diagram of the positioning sleeve of the present invention.

[0029] Figure 10 It is a structural schematic diagram of the guide block of the present invention.

[0030] Figure 11 It is a schematic diagram of the hydraulic support structure of the convex ring and the frustum of the present invention.

[0031] Figure 12 It is a structural schematic diagram of the notching tool of the present invention.

[0032] Figure 13 It is a structural schematic diagram of the discharge positioning column of the present invention.

[0033] Figure 14 It is a structural schematic diagram of the sliding pad of the present invention.

[0034] As shown in the figure: 1. Lower die of progressive die, 2. Punch fixing plate, 3. Upper die base, 4. Slotting hole, 5. Discharge hole, 6. First lifting bracket, 7. Second lifting bracket, 8. Rotary positioner, 9. Slotting tool, 10. Discharge positioning column, 11. Discharge support plate, 12. Encoder, 13. Rotary motor, 14. Transmission box, 15. Lower positioning seat, 16. Upper positioning seat, 17. Positioning sleeve, 18. First annular oil chamber, 19. Oil outlet groove, 20. First oil supply interface, 21. First annular oil groove, 22. Second annular oil groove, 23. Third annular oil chamber, 24. First connecting port, 25. Third annular oil groove, 26. Fourth annular oil chamber, 27. Second connecting port, 28. Second oil supply interface, 29, second oil return interface, 30, second annular oil chamber, 31, oil return groove, 32, first oil return interface, 33, fifth annular oil groove, 34, fifth annular oil chamber, 35, sixth annular oil groove, 36, sixth annular oil chamber, 37, fourth connecting port, 38, third oil supply interface, 39, third oil return interface, 40, guide block, 41, long bevel, 42, short bevel, 43, connecting flange, 44, convex ring, 45, cone, 46, through hole, 47, guide bushing, 48, guide column, 49, cutter head, 50, turntable, 51, positioning column support plate, 52, sliding pad, 53, pressure plate, 54, fourth annular oil groove, 55, third connecting port, 56, positioning key. DETAILED DESCRIPTION

[0035] The present invention will be described in further detail below with reference to the accompanying drawings.

[0036] Combined with attachment Figure 1 , Attachment Figure 2 and attached Figure 3 A motor skew rotor rotary mold positioning device includes a progressive die lower die 1, a punch fixing plate 2 and an upper die base 3. The punch fixing plate 2 is provided with a notch hole 4, the end of the progressive die lower die 1 is provided with a discharge hole 5, and a first lifting bracket 6 is provided below the discharge hole 5. Rotary positioners 8 are provided above the notch hole 4 and at the bottom of the first lifting bracket 6.

[0037] This device cooperates with the existing motor skew rotor rotary progressive die. The corresponding mold and stamping machine are equipped with multi-stage stamping stations and high-precision feeding mechanism. The feeding mechanism feeds the silicon steel coil into the progressive die for stamping step by step, and finally relies on the blanking punch of the last stage of the mold to push the silicon steel sheet with the slot required for the motor core downward to form the motor core punching sheet. The blanking station is equipped with a discharge support structure to cooperate with the blanking ejection to carry out multi-layer punching riveting and the subsequent process is automatically fed by the discharge equipment. The corresponding specific structure belongs to the existing technology and is not further described in this application.

[0038] Combined with attachment Figure 6 , Attachment Figure 7 and attached Figure 8 The rotary positioner 8 includes an encoder 12, a rotary motor 13, a transmission box 14, a lower positioning seat 15, an upper positioning seat 16 and a positioning sleeve 17. A connecting flange 43 is provided on the top of the positioning sleeve 17. The connecting flange 43 is simultaneously connected to the output shaft of the transmission box 14 and the code disk of the encoder 12. The output shaft of the rotary motor 13 is dynamically connected to the input shaft of the transmission box 14.

[0039] The locating sleeve 17 is rotatably sleeved in the lower locating seat 15, and the upper locating seat 16 is snap-fitted and arranged above the lower locating seat 15. A first annular oil chamber 18 is arranged on the top of the lower locating seat 15, and a plurality of slit-shaped oil outlet grooves 19 are arranged around the top of the first annular oil chamber 18. A second annular oil chamber 30 is arranged at the bottom of the upper locating seat 16, and a plurality of slit-shaped oil return grooves 31 are arranged around the bottom of the second annular oil chamber 30. A first oil supply interface 20 is arranged at the top of the lower locating seat 15, and a first oil return interface 32 is arranged at the bottom of the upper locating seat 16. The first oil supply interface 20 is communicated with the first annular oil chamber 18, and the first oil return interface 32 is communicated with the second annular oil chamber 30.

[0040] Combined with attachment Figure 9 and attached Figure 10 A plurality of guide blocks 40 are arranged around the middle of the positioning sleeve 17 and extend between the first annular oil chamber 18 and the second annular oil chamber 30. The number of oil outlet grooves 19, oil return grooves 31 and guide blocks 40 is equal. The oil outlet grooves 19 and the oil return grooves 31 are staggered. One side of the guide block 40 is set as a long inclined surface 41, and the other side is set as a short inclined surface 42. The bottom of the long inclined surface 41 points to the oil outlet groove 19, and the top points to the oil return groove 31. The short inclined surface 42 has an equal inclination angle to the long inclined surface 41 and is in opposite directions.

[0041] In the above structure, the first oil supply interface 20 and the first oil return interface 32 need to be connected to the oil supply pipeline and the oil return pipeline of the external hydraulic pump station respectively. The hydraulic pump station is a common equipment and will not be further described in this application.

[0042] When the hydraulic oil flows into the first annular oil chamber 18 through the first oil supply interface 20 and is filled, it will continue to flow upward through the oil outlet groove 19, pass through the gap of the guide block 40, enter the oil return groove 31 and merge into the second annular oil chamber 30. Since the bottom of the long inclined surface 41 points to the oil outlet groove 19 and the top points to the oil return groove 31, the hydraulic oil will be guided by the long inclined surface 41 and deflected when flowing through the gap of the guide block 40, so that the flow direction is finally directed to the oil return groove 31. Conversely, since the flow direction of the hydraulic oil is changed, it will exert a reverse force on the long inclined surface 41. Multiple guide blocks 40 are simultaneously subjected to the force and finally generate The torque that makes the positioning sleeve 17 rotate, if the positioning sleeve 17 rotates in this state, the hydraulic oil will not contact the long inclined surface 41 after leaving the oil outlet groove 19, but will contact the short inclined surface 42 first. The same hydraulic oil will also exert a force on the short inclined surface 42. Since the inclination direction of the short inclined surface 42 is opposite to that of the long inclined surface 41, the force exerted by the hydraulic pressure on the long inclined surface 41 and the short inclined surface 42 at the same time will make the positioning sleeve 17 rotate to a specific angle and achieve force balance, and maintain it at the equilibrium angle under the two relative rotational torques and cannot rotate. At this equilibrium angle, if a rotational torque is applied to the positioning sleeve 17 from the outside to attach Figure 10 The direction shown is the standard. When the external torque is counterclockwise, the hydraulic oil first flows to the long inclined surface 41. Then the reaction force exerted by the hydraulic oil on the long inclined surface 41 will become larger, generating a clockwise torque to resist the externally applied counterclockwise torque. On the contrary, when the external clockwise torque is applied, the hydraulic oil can also generate a counterclockwise torque. When the externally applied torque affects the torque exerted by the hydraulic oil, the positioning sleeve 17 cannot rotate.

[0043] In summary, the above structure can generate a balancing torque through hydraulic oil to maintain the positioning sleeve 17 at a specific angle. During the riveting process of the skew motor rotor sheet, each layer of sheet has the same deflection angle. If the present device is used to process rotor sheets with a 5° difference in each layer of sheet, then the oil outlet groove 19, the oil return groove 31 and the guide block 40 in the present device also need to be processed at an angle interval of 5° during production. In the specific implementation, special selection is made for the rotary motor 13, the transmission box 14 and the external hydraulic pump station, so that the torque output by the rotary motor 13 through the transmission box 14 is slightly greater than the balancing torque applied by the hydraulic oil to the positioning sleeve 17. During the punching process, the encoder 12 is used to detect the rotation angle of the positioning sleeve 17 after each grooving. After each grooving is completed, the rotary motor 13 drives the positioning sleeve 17 to rotate 5° and then cuts off the power output of the rotary motor 13. The balancing torque applied by the hydraulic oil is used to maintain the angle of the positioning sleeve 17 after rotation.

[0044] Shaft seals are applied to the positioning sleeve 17 at the bottom of the lower positioning seat 15 and the top of the upper positioning seat 16 respectively, such as common sealing technologies such as compressed air airtightness, which will not be further described in this application.

[0045] Combined with attachment Figure 11 The bottom of the positioning sleeve 17 is provided with a downwardly protruding frustum 45, and the bottom of the lower positioning seat 15 is provided with a first annular oil groove 21 that fits with the bottom end surface of the positioning sleeve 17, a second annular oil groove 22 that fits with the side of the frustum 45, and a third annular oil groove 25 that fits with the conical surface of the frustum 45. A third annular oil chamber 23 and a fourth annular oil chamber 26 are respectively provided around the bottom of the lower positioning seat 15, wherein the third annular oil chamber 23 is provided with a plurality of first connecting ports 24 that are respectively connected to the first annular oil groove 21 and the second annular oil groove 22, and the fourth annular oil chamber 26 is provided with a plurality of second connecting ports 27 that are connected to the third annular oil groove 25. The top of the lower positioning seat 15 is provided with a second oil supply interface 28 and a second oil return interface 29, the second oil supply interface 28 is connected to the third annular oil chamber 23, and the second oil return interface 29 is connected to the fourth annular oil chamber 26. The top of the positioning sleeve 17 is provided with a convex ring 44, and the top of the upper positioning seat 16 is provided with a fourth annular oil groove 54 that fits with the bottom surface of the convex ring 44, a fifth annular oil groove 33 that fits with the top side of the positioning sleeve 17, and a sixth annular oil groove 35 located below the fifth annular oil groove 33. A fifth annular oil chamber 34 and a sixth annular oil chamber 36 are respectively provided around the top of the upper positioning seat 16, wherein the fifth annular oil chamber 34 is provided with a plurality of third connecting ports 55 that are respectively connected to the fourth annular oil groove 54 and the fifth annular oil groove 33, and the sixth annular oil chamber 36 is provided with a plurality of fourth connecting ports 37 that are connected to the sixth annular oil groove 35. A third oil supply interface 38 and a third oil return interface 39 are respectively provided on the top of the upper positioning seat 16. The third oil supply interface 38 is connected to the fifth annular oil chamber 34, and the third oil return interface 39 is connected to the sixth annular oil chamber 36.

[0046] Similarly, the second oil supply interface 28 and the third oil supply interface 38 are also connected to the oil supply pipeline of the external hydraulic pump station, and the second oil return interface 29 and the third oil return interface 39 are connected to the return oil pipeline of the external hydraulic pump station. Since shaft seals are applied to the upper and lower ends of the positioning sleeve 17, the supporting hydraulic oil can only enter the third annular oil groove 25 and the sixth annular oil groove 35 after leaving each annular oil groove and finally return to the external hydraulic pump station.

[0047] The above structure supports the upper and lower ends of the positioning sleeve 17 in the axial and radial directions simultaneously through the dynamic pressure of hydraulic oil, forming a structure similar to a floating bearing, reducing the mechanical contact between the positioning sleeve 17 and other components, reducing mechanical wear and ensuring positioning accuracy.

[0048] Combined with attachment Figure 12 , Attachment Figure 13 and attached Figure 14A plurality of vertically penetrating through holes 46 are arranged inside the positioning sleeve 17, and guide bushings 47 are embedded in the upper and lower ends of the through holes 46. A vertically sliding notching tool 9 is provided in the notching hole 4, and a cutter head 49 is provided on the notching tool 9 for punching keyways on the rotor punching sheets. A vertically sliding discharge positioning column 10 is provided in the discharge hole 5, and a positioning key 56 is provided on the side of the discharge positioning column 10. A plurality of guide columns 48 that cooperate with the guide bushings 47 are provided on the top of the notching tool 9 and the bottom of the discharge positioning column 10.

[0049] Combined with attachment Figure 14 The upper die base 3 is provided with an annular sliding pad 52 at a position directly above the punching hole 4. The top of the sliding pad 52 supports a turntable 50. The center bottom of the turntable 50 is fixedly connected to the guide column 48. A pressure plate 53 is provided above the turntable 50, and the pressure plate 53 is fixedly connected to the upper die base 3.

[0050] The turntable 50 can slide freely on the sliding pad 52. After it is connected to the guide column 48, the punching machine drives the upper die base 3 to move upward after each punching is completed. The turntable 50 can synchronously pull the guide column 48 to move the notching tool 9 upward and away from the punch being processed. When the punching machine punches, it drives the upper die base 3 to move downward, and the pressure plate 53 presses the turntable 50 downward to make the notching tool 9 move downward synchronously, so that the cutter head 49 punches out a keyway on the punch during the downward movement. After each punching, the rotary motor 13 will drive the positioning sleeve 17 to rotate a specific angle, and the direction of each rotation is the same, so that the keyway on each punch processed by the cutter head 49 is facing a different angle.

[0051] Combined with attachment Figure 4 and attached Figure 5 Before each blanking station carries out blanking, the rotary positioner 8 of the station drives the guide column 48 to rotate, so that the positioning key 56 maintains the same direction as the keyway punched out by the cutter head 49 on the punch during the last punching, ensuring that the positioning key 56 can be aligned with the keyway on the punch during blanking. After blanking, the punch is positioned by the positioning key 56 inserted into the keyway. Since only the angle of the keyway on each punch has changed, when each punch falls into the guide column 48 in turn, the keyway is positioned in the same direction by the positioning key 56, and the rest of the punch will be twisted in the same direction and angle on each layer, eventually forming a rotor with its own twist angle.

[0052] Combined with attachment Figure 3 and attached Figure 14 A second lifting bracket 7 is provided below the first lifting bracket 6 , and an electrically liftable discharge support plate 11 is provided on the first lifting bracket 6 . A positioning column support plate 51 is provided on the second lifting bracket 7 , and the positioning column support plate 51 supports the bottom of the guide column 48 .

[0053] After the punching sheet is blanked, it is supported by the discharge supporting plate 11. The discharge supporting plate 11 and the guide column 48 can be electrically lifted and lowered respectively, and can be coordinated with the existing discharge equipment for automatic discharge.

[0054] The above description of the present invention and its embodiments is non-limiting, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the invention, without creatively designing a structure and embodiment similar to the technical solution, they shall fall within the scope of protection of the present invention.

Claims

1. A motor skew rotor rotary die positioning device, comprising a progressive die lower die (1), a punch fixing plate (2) and an upper die base (3), wherein the punch fixing plate (2) is provided with a punching hole (4), a discharge hole (5) is provided at the end of the progressive die lower die (1), a first lifting bracket (6) is provided below the discharge hole (5), and a rotary positioner (8) is provided above the punching hole (4) and at the bottom of the first lifting bracket (6), characterized in that: The rotary positioner (8) comprises an encoder (12), a rotary motor (13), a transmission box (14), a lower positioning seat (15), an upper positioning seat (16) and a positioning sleeve (17), wherein the positioning sleeve (17) is rotatably sleeved in the lower positioning seat (15), the upper positioning seat (16) is snap-fitted and arranged above the lower positioning seat (15), a first annular oil chamber (18) is arranged on the top of the lower positioning seat (15), a plurality of slit-shaped oil outlet grooves (19) are arranged around the top of the first annular oil chamber (18), a second annular oil chamber (30) is arranged on the bottom of the upper positioning seat (16), and a plurality of slit-shaped oil outlet grooves (19) are arranged around the bottom of the second annular oil chamber (30). A plurality of slit-shaped oil return grooves (31) are provided, and a plurality of guide blocks (40) are provided around the middle of the positioning sleeve (17) and extend between the first annular oil chamber (18) and the second annular oil chamber (30). The number of the oil outlet grooves (19), the oil return grooves (31) and the guide blocks (40) is equal, and the oil outlet grooves (19) and the oil return grooves (31) are staggered. One side of the guide block (40) is provided with a long inclined surface (41) and the other side is provided with a short inclined surface (42), wherein the bottom of the long inclined surface (41) points to the oil outlet groove (19) and the top points to the oil return groove (31), and the short inclined surface (42) and the long inclined surface (41) have the same inclination angle and opposite directions; A plurality of through holes (46) extending in a vertical direction are provided inside the positioning sleeve (17), and guide bushings (47) are embedded in the upper and lower ends of the through holes (46). A notching tool (9) that slides in a vertical direction is provided in the notching hole (4), and a discharge positioning column (10) that slides in a vertical direction is provided in the discharge hole (5). A plurality of guide columns (48) that match the guide bushings (47) are provided at the top of the notching tool (9) and the bottom of the discharge positioning column (10).

2. The motor skew rotor rotary mold positioning device according to claim 1, characterized in that: A first oil supply interface (20) is provided at the top of the lower positioning seat (15), and a first oil return interface (32) is provided at the bottom of the upper positioning seat (16). The first oil supply interface (20) is communicated with the first annular oil cavity (18), and the first oil return interface (32) is communicated with the second annular oil cavity (30).

3. The motor skew rotor rotary mold positioning device according to claim 1, characterized in that: The bottom of the positioning sleeve (17) is provided with a downwardly protruding cone (45), the bottom of the lower positioning seat (15) is provided with a first annular oil groove (21) that fits with the bottom end surface of the positioning sleeve (17), a second annular oil groove (22) that fits with the side surface of the cone (45), and a third annular oil groove (25) that fits with the conical surface of the cone (45), and a third annular oil cavity (23) and a fourth annular oil cavity (26) are respectively provided around the bottom of the lower positioning seat (15), wherein the third annular oil cavity (23) surrounds a A plurality of first communication ports (24) are arranged around the fourth annular oil chamber (26) and are respectively communicated with the first annular oil groove (21) and the second annular oil groove (22). A plurality of second communication ports (27) are arranged around the fourth annular oil chamber (26) and are communicated with the third annular oil groove (25). A second oil supply interface (28) and a second oil return interface (29) are respectively provided at the bottom of the lower positioning seat (15). The second oil supply interface (28) is communicated with the third annular oil chamber (23), and the second oil return interface (29) is communicated with the fourth annular oil chamber (26).

4. The motor skew rotor rotary mold positioning device according to claim 1, characterized in that: The top of the positioning sleeve (17) is provided with a convex ring (44), the top of the upper positioning seat (16) is provided with a fourth annular oil groove (54) in contact with the bottom surface of the convex ring (44), a fifth annular oil groove (33) in contact with the side surface of the top of the positioning sleeve (17), and a sixth annular oil groove (35) located below the fifth annular oil groove (33), and the top of the upper positioning seat (16) is provided with a fifth annular oil cavity (34) and a sixth annular oil cavity (36) around the top of the upper positioning seat (16), wherein the fifth annular oil cavity (34) is provided around the top of the upper positioning seat (16). A plurality of third communication ports (55) are provided to communicate with the fourth annular oil groove (54) and the fifth annular oil groove (33), respectively. A plurality of fourth communication ports (37) are provided around the sixth annular oil chamber (36) to communicate with the sixth annular oil groove (35). A third oil supply interface (38) and a third oil return interface (39) are provided on the top of the upper positioning seat (16). The third oil supply interface (38) is communicated with the fifth annular oil chamber (34), and the third oil return interface (39) is communicated with the sixth annular oil chamber (36).

5. The motor skew rotor rotary mold positioning device according to claim 1, characterized in that: A connecting flange (43) is provided on the top of the positioning sleeve (17), and the connecting flange (43) is simultaneously connected to the output shaft of the transmission box (14) and the code disk of the encoder (12) in a dynamic manner, and the output shaft of the rotary motor (13) is connected to the input shaft of the transmission box (14) in a dynamic manner.

6. The motor skew rotor rotary mold positioning device according to claim 1, characterized in that: The upper die base (3) is provided with an annular sliding pad (52) located just above the punching hole (4); a turntable (50) is supported on the top of the sliding pad (52); the center bottom of the turntable (50) is fixedly connected to the guide column (48); a pressure plate (53) is provided above the turntable (50); and the pressure plate (53) is fixedly connected to the upper die base (3).

7. The motor skew rotor rotary mold positioning device according to claim 1, characterized in that: A second lifting bracket (7) is provided below the first lifting bracket (6), an electrically liftable discharge support plate (11) is provided on the first lifting bracket (6), and a positioning column support plate (51) is provided on the second lifting bracket (7), and the positioning column support plate (51) supports the bottom of the guide column (48).

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