Punching machine for processing stator and rotor punching sheets

Abstract

The utility model relates to a punching machine for machining stator and rotor punching sheets, which belongs to the technical field of stator and rotor punching sheet machining and comprises a punching table, two supporting seats, a supporting plate, a top plate, a hydraulic rod, a top punching die, a bottom punching die and a limiting cover. And the grinding mechanism comprises a mounting plate fixedly mounted between the two supporting seats. According to the punching machine for machining the stator and rotor punching sheets, the stator and rotor punching sheets are punched under the action of a hydraulic rod, a top punching die, a bottom punching die and a limiting cover, and the bottom punching die and the punched stator and rotor punching sheets are driven to move upwards and drive the stator and rotor punching sheets to rotate under the action of an electric telescopic rod, a driving motor, a limiting clamping seat and a positioning clamping seat; the top and the peripheral wall of the stator and rotor punching sheet are polished through the plane polishing disc and the side wall polishing base, residual burrs on the outer wall of the stator and rotor punching sheet are greatly reduced, and follow-up machining and using of the stator and rotor punching sheet are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of stator and rotor lamination processing technology, specifically a stator and rotor lamination processing punch press. Background Technology

[0002] Stator and rotor lamination processing presses are specialized equipment used in motor manufacturing to produce stator and rotor laminations. Through high-precision stamping processes, silicon steel sheets are processed into laminations of specific shapes and sizes, which are then stacked to form the core components of the motor. The press possesses powerful stamping force and a precise control system, enabling it to automatically complete feeding, stamping, and blanking processes, ensuring the accuracy and quality of the laminations and thus meeting the performance and efficiency requirements of the motor.

[0003] Currently, stator and rotor laminations are generally stamped using dies during processing. However, the surface of the stator and rotor laminations often has many burrs. This is because in common processes, the scrap material cut off is easily absorbed by the die, causing indentations and scratches on the surface of the rotor laminations. This results in the burr height of the rotor laminations significantly exceeding the standard. Excessive burrs will reduce the core stacking coefficient, affect electrical performance, and cause the stator core tooth opening to exceed the allowable value, thereby leading to a decrease in power factor, an increase in copper loss, and an increase in temperature rise. Therefore, a stamping press for processing stator and rotor laminations has been proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a stamping press for processing stator and rotor laminations, which has the advantages of significantly reducing burrs on the outer wall of stator and rotor laminations. It solves the problems that affect electrical performance and cause the stator core tooth opening to exceed the allowable value, thereby leading to a decrease in power factor, an increase in copper loss, and an increase in temperature rise.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a stamping press for processing stator and rotor laminations, comprising a stamping table, two support bases, a support plate, a top plate, a hydraulic rod, a top stamping die, a bottom stamping die, and a limiting cover, wherein the outer wall of the stamping table is provided with a grinding mechanism;

[0006] The grinding mechanism includes a mounting plate fixedly installed between two support seats. An electric telescopic rod is fixedly installed on the top outer wall of the mounting plate. A drive motor is fixedly installed on the telescopic shaft of the electric telescopic rod. A limit seat is fixedly installed on the output shaft of the drive motor. A positioning seat is fixedly installed on the bottom outer wall of the bottom stamping die. A side plate is fixedly installed on the right outer wall of the stamping table. A servo motor is fixedly installed on the bottom outer wall of the side plate. A reducer is fixedly installed on the top outer wall of the side plate. A rotating column is fixedly installed on the output shaft of the reducer. A first adjusting rod and a second adjusting rod are fixedly installed on the outer peripheral wall of the rotating column. A flat grinding disc is fixedly installed on the side of the first adjusting rod away from the rotating column. A side wall grinding seat is fixedly installed on the side of the second adjusting rod away from the rotating column.

[0007] Furthermore, the stamping table has an adjustment hole inside, and the positioning bracket is rotatably connected inside the adjustment hole and is of a suitable size. The positioning bracket is cylindrical.

[0008] Furthermore, the positioning card seat has a hexagonal groove inside, and the limiting card seat is hexagonal. The limiting card seat is slidably connected inside the hexagonal groove and is adapted in size.

[0009] Furthermore, the highest height to which the bottom stamping die moves upward is the same as the bottom height of the flat grinding disc, the bottom stamping die is circular, and the diameter of the flat grinding disc is the same as the diameter of the bottom stamping die.

[0010] Furthermore, the sidewall grinding seat is arc-shaped, the left sidewall of the sidewall grinding seat and the outer peripheral wall of the bottom stamping die are located on the same vertical plane, and the top of the sidewall grinding seat is in contact with the bottom of the flat grinding disc.

[0011] Furthermore, the output shaft of the servo motor passes through the interior of the side plate and is fixedly connected to the connecting shaft of the reducer.

[0012] Furthermore, the support base is fixedly installed on the bottom outer wall of the stamping table, the support plate is fixedly installed on the top outer wall of the stamping table, the top plate is fixedly installed on the top outer wall of the support plate, the hydraulic rod is fixedly installed on the bottom outer wall of the top plate, the top stamping die is fixedly installed on the telescopic shaft of the hydraulic rod, the bottom stamping die is movably installed on the top outer wall of the stamping table, the limiting cover is fixedly installed on the top outer wall of the stamping table, and the bottom stamping die is slidably connected to the inner peripheral wall of the limiting cover.

[0013] Furthermore, a vibration damping pad is fixedly installed at the bottom of the support base.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] This stator and rotor lamination processing press uses hydraulic rods, a top stamping die, a bottom stamping die, and a limit cover to stamp the stator and rotor laminations. An electric telescopic rod, a drive motor, a limit chuck, and a positioning chuck move the bottom stamping die and the stamped stator and rotor laminations upwards and cause them to rotate. A flat grinding disc and a side wall grinding seat grind the top and outer peripheral walls of the stator and rotor laminations, significantly reducing burrs on the outer walls and facilitating subsequent processing and use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a top view of the bottom stamping die of this utility model;

[0018] Figure 3 This is a schematic diagram of the bottom structure of the positioning card holder of this utility model;

[0019] Figure 4 This is a schematic diagram of the sidewall grinding seat structure of this utility model.

[0020] In the picture:

[0021] 1. Stamping table; 2. Support base; 3. Support plate; 4. Top plate; 5. Hydraulic rod; 6. Top stamping die; 7. Bottom stamping die; 8. Limit cover; 9. Mounting plate; 10. Electric telescopic rod; 11. Drive motor; 12. Limiting bracket; 13. Positioning bracket; 14. Side plate; 15. Servo motor; 16. Reducer; 17. Rotating column; 18. First adjusting rod; 19. Second adjusting rod; 20. Surface grinding disc; 21. Side wall grinding seat. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1, please refer to Figures 1 to 4 The stator and rotor lamination processing press in this embodiment includes a stamping table 1, two support seats 2, a support plate 3, a top plate 4, a hydraulic rod 5, a top stamping die 6, a bottom stamping die 7, and a limiting cover 8. The outer wall of the stamping table 1 is provided with a grinding mechanism.

[0024] Support base 2 is fixedly installed on the bottom outer wall of stamping table 1, support plate 3 is fixedly installed on the top outer wall of stamping table 1, top plate 4 is fixedly installed on the top outer wall of support plate 3, hydraulic rod 5 is fixedly installed on the bottom outer wall of top plate 4, top stamping die 6 is fixedly installed on the telescopic shaft of hydraulic rod 5, bottom stamping die 7 is movably installed on the top outer wall of stamping table 1, limit cover 8 is fixedly installed on the top outer wall of stamping table 1, and bottom stamping die 7 is slidably connected to the inner peripheral wall of limit cover 8.

[0025] The grinding mechanism includes a mounting plate 9 fixedly installed between two support seats 2. An electric telescopic rod 10 is fixedly installed on the top outer wall of the mounting plate 9. A drive motor 11 is fixedly installed on the telescopic shaft of the electric telescopic rod 10. A limit seat 12 is fixedly installed on the output shaft of the drive motor 11. A positioning seat 13 is fixedly installed on the bottom outer wall of the bottom stamping die 7. An adjustment hole is opened inside the stamping table 1. The positioning seat 13 is rotatably connected inside the adjustment hole and is of the same size. The positioning seat 13 is cylindrical and has a hexagonal groove inside. The limit seat 12 is hexagonal and is slidably connected inside the hexagonal groove and is of the same size.

[0026] A side plate 14 is fixedly installed on the right outer wall of the stamping table 1. A servo motor 15 is fixedly installed on the bottom outer wall of the side plate 14. A reducer 16 is fixedly installed on the top outer wall of the side plate 14. The output shaft of the servo motor 15 passes through the interior of the side plate 14 and is fixedly connected to the connecting shaft of the reducer 16.

[0027] The output shaft of the reducer 16 is fixedly mounted with a rotating column 17. The outer peripheral wall of the rotating column 17 is fixedly mounted with a first adjusting rod 18 and a second adjusting rod 19. A flat grinding disc 20 is fixedly mounted on the side of the first adjusting rod 18 away from the rotating column 17. The highest height of the bottom stamping die 7 is the same as the bottom height of the flat grinding disc 20. The bottom stamping die 7 is circular. The diameter of the flat grinding disc 20 is the same as the diameter of the bottom stamping die 7. A side wall grinding seat 21 is fixedly mounted on the side of the second adjusting rod 19 away from the rotating column 17. The side wall grinding seat 21 is arc-shaped. The left side wall of the side wall grinding seat 21 and the outer peripheral wall of the bottom stamping die 7 are located on the same vertical plane. The top of the side wall grinding seat 21 is in contact with the bottom of the flat grinding disc 20.

[0028] In this embodiment, after the stator and rotor laminations are stamped inside the bottom stamping die 7, the stator and rotor laminations will be stuck inside the bottom stamping die 7 due to the influence of its internal structure and can only move upward. Therefore, when the bottom stamping die 7 rotates, it will synchronously drive the stator and rotor laminations to rotate.

[0029] In this embodiment, when the stator and rotor laminations are stamped, the limiting bracket 12 will move downward a short distance but will not completely move out of the positioning bracket 13, so as to prevent the top stamping die 6 and the bottom stamping die 7 from causing pressure on the output shaft of the drive motor 11 during the stamping of the stator and rotor laminations, which could lead to damage.

[0030] Example 2, based on Example 1, includes a vibration damping pad, which reduces the vibration of the punch press during use.

[0031] The working principle of the above embodiments is as follows:

[0032] First, the stator and rotor laminations are placed on top of the bottom stamping die 7, while the stator and rotor laminations are located inside the limiting cover 8. At this time, the hydraulic rod 5 is activated to drive the top stamping die 6 to move downward. The top stamping die 6 and the bottom stamping die 7 stamp the stator and rotor laminations. After the stator and rotor laminations are stamped, the electric telescopic rod 10 is activated and drives the limiting bracket 12 to move upward. At this time, the positioning bracket 13 will push the bottom stamping die 7 to move upward a certain distance. Then, the servo motor 15 is activated to rotate and drive the flat grinding disc 20 and the side wall grinding seat 21 to adjust to a certain angle. At this time, the flat grinding disc 20 and the side wall grinding seat 21 are located on the top and outer peripheral wall of the stator and rotor laminations, respectively. Then, the drive motor 11 is activated to drive the bottom stamping die 7 to rotate. At this time, the bottom stamping die 7 will drive the stator and rotor laminations to rotate. At this time, the burrs on the top and outer peripheral wall of the stator and rotor laminations are ground by the flat grinding disc 20 and the side wall grinding seat 21.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stamping press for processing stator and rotor laminations, comprising a stamping table (1), two support bases (2), a support plate (3), a top plate (4), a hydraulic rod (5), a top stamping die (6), a bottom stamping die (7), and a limiting cover (8), characterized in that: The outer wall of the stamping table (1) is provided with a grinding mechanism; The grinding mechanism includes a mounting plate (9) fixedly installed between two support seats (2). An electric telescopic rod (10) is fixedly installed on the top outer wall of the mounting plate (9). A drive motor (11) is fixedly installed on the telescopic shaft of the electric telescopic rod (10). A limit seat (12) is fixedly installed on the output shaft of the drive motor (11). A positioning seat (13) is fixedly installed on the bottom outer wall of the bottom stamping die (7). A side plate (14) is fixedly installed on the right outer wall of the stamping table (1). The bottom outer wall of the side plate (14) is fixedly installed on the right outer wall. A servo motor (15) is fixedly installed on the wall. A reducer (16) is fixedly installed on the top outer wall of the side plate (14). A rotating column (17) is fixedly installed on the output shaft of the reducer (16). A first adjusting rod (18) and a second adjusting rod (19) are fixedly installed on the outer peripheral wall of the rotating column (17). A flat grinding disc (20) is fixedly installed on the side of the first adjusting rod (18) away from the rotating column (17). A side wall grinding seat (21) is fixedly installed on the side of the second adjusting rod (19) away from the rotating column (17).

2. The stator and rotor lamination processing press according to claim 1, characterized in that: The stamping table (1) has an adjustment hole inside, and the positioning bracket (13) is rotatably connected inside the adjustment hole and is of the same size. The positioning bracket (13) is cylindrical.

3. A stamping press for machining stator and rotor laminations according to claim 1, characterized in that: The positioning card seat (13) has a hexagonal groove inside, and the limiting card seat (12) is hexagonal. The limiting card seat (12) is slidably connected inside the hexagonal groove and is of the same size.

4. A stamping press for machining stator and rotor laminations according to claim 1, characterized in that: The maximum height at which the bottom stamping die (7) moves upward is the same as the bottom height of the flat grinding disc (20). The bottom stamping die (7) is circular, and the diameter of the flat grinding disc (20) is the same as the diameter of the bottom stamping die (7).

5. A stamping press for machining stator and rotor laminations according to claim 1, characterized in that: The side wall grinding seat (21) is arc-shaped. The left side wall of the side wall grinding seat (21) and the outer peripheral wall of the bottom stamping die (7) are located on the same vertical plane. The top of the side wall grinding seat (21) is in contact with the bottom of the flat grinding disc (20).

6. A stamping press for machining stator and rotor laminations according to claim 1, characterized in that: The output shaft of the servo motor (15) passes through the interior of the side plate (14) and is fixedly connected to the connecting shaft of the reducer (16).

7. A stamping press for machining stator and rotor laminations according to claim 1, characterized in that: The support base (2) is fixedly installed on the bottom outer wall of the stamping table (1), the support plate (3) is fixedly installed on the top outer wall of the stamping table (1), the top plate (4) is fixedly installed on the top outer wall of the support plate (3), the hydraulic rod (5) is fixedly installed on the bottom outer wall of the top plate (4), the top stamping die (6) is fixedly installed on the telescopic shaft of the hydraulic rod (5), the bottom stamping die (7) is movably installed on the top outer wall of the stamping table (1), the limiting cover (8) is fixedly installed on the top outer wall of the stamping table (1), and the bottom stamping die (7) is slidably connected to the inner peripheral wall of the limiting cover (8).

8. A stamping press for machining stator and rotor laminations according to claim 1, characterized in that: The bottom of the support base (2) is fixedly equipped with a vibration damping pad.

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