Stamping die capable of switching shapes of stator iron core scattered sheets

Abstract

The utility model discloses a stamping die capable of switching the shapes of stator iron core scattered sheets, which comprises a base, a first lower die and a second lower die which are fixedly connected are arranged in the base, the outer side of the second lower die is connected with a first lead screw stepping motor, and the first lead screw stepping motor pushes the first lower die and the second lower die to slide left and right in the base. A first position sensor and a second position sensor are arranged on the inner walls of the left side and the right side of the base correspondingly, and upper dies are arranged over the center of the base at intervals. According to the utility model, the first lower die and the second lower die are driven by the first screw stepping motor to be quickly switched, and accurate positioning is realized by combining the first position sensor and the second position sensor, so that the shapes of different stator iron core scattered sheets can be switched, and the scattered sheets with different shapes can be punched by the die. And meanwhile, a second lead screw stepping motor and an insertion limiting plate work cooperatively, the lower die is fixed and limited after reaching the target position, and the stability and the forming precision in the stamping process are guaranteed.

Description

Technical Field

[0001] This utility model relates to a stamping die with switchable stator core sheet shapes. Background Technology

[0002] In modern industry, electric motors, as key devices that convert electrical energy into mechanical energy, are widely used in various fields, such as electric vehicles, industrial production equipment, and household appliances. The stator core, as one of the core components of the motor, has a crucial impact on the overall performance of the motor.

[0003] In practical applications, stator core designs are becoming increasingly complex. For example, the stator cores of some high-efficiency or special motors need to contain two different shapes of laminations to optimize electromagnetic performance or accommodate compact installation spaces. However, traditional stamping dies can only produce laminations of a single shape. If multiple shapes of laminations need to be produced, companies typically need to prepare multiple sets of dies and switch between them manually or mechanically. This not only increases equipment investment costs but also leads to low production efficiency due to excessively long die-change times. Utility Model Content

[0004] The main purpose of this invention is to provide a stamping die with switchable stator core sheet shapes to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved by adopting the following technical solution:

[0006] A stamping die with switchable stator core sheet shapes includes a base. A first lower die and a second lower die are fixedly connected inside the base. A first lead screw stepper motor is connected to the outer side of the second lower die. The first lead screw stepper motor pushes the first and second lower dies to slide left and right within the base. A first position sensor and a second position sensor are respectively installed on the inner walls of the left and right sides of the base. The first and second position sensors detect the positions of the first and second lower dies respectively and feed the signals back to the first lead screw stepper motor. An upper die is spaced apart at the center of the base.

[0007] Preferably, the inner walls on the front and rear sides of the base are provided with sliding grooves along their length, and the outer walls of the first lower mold and the second lower mold are respectively provided with a first slider and a second slider.

[0008] Preferably, the upper mold has a disc-shaped structure, and the edges of the first lower mold, the second lower mold, and the upper mold are all provided with cutting edges.

[0009] Preferably, the first lower mold and the second lower mold are fixedly connected by a connecting column.

[0010] Preferably, the bottom of the first lower mold and the second lower mold are respectively provided with a first material discharge port and a second material discharge port, and the center of the base is provided with a base material discharge port.

[0011] Preferably, a second lead screw stepper motor is provided directly below the material discharge port of the base, and a plug-in limiting plate is provided above the second lead screw stepper motor.

[0012] Preferably, slide rails are provided on both sides of the second lead screw stepper motor, and third sliders are provided at both ends of the plug-in limiting plate.

[0013] Preferably, a third position sensor is provided on the inner wall of the left side of the base at a distance from the first position sensor, and a fourth position sensor is provided on the inner wall of the right side of the base at a distance from the second position sensor. The third and fourth position sensors detect the positions of the first and second lower dies respectively and feed the signals back to the second lead screw stepper motor.

[0014] The beneficial technical effects of this utility model are as follows:

[0015] This invention utilizes a first lead screw stepper motor to drive rapid switching between a first lower die and a second lower die, combined with a first position sensor and a second position sensor to achieve precise positioning. This enables the switching of different stator core sheet shapes, allowing the die to stamp sheets of various shapes. Simultaneously, the second lead screw stepper motor works in conjunction with a plug-in limiting plate to fix the lower die at the target position, ensuring the stability and forming accuracy of the stamping process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the stamping die structure according to an embodiment of the present utility model;

[0017] Figure 2 This is a side view of a stamping die according to an embodiment of the present invention;

[0018] Figure 3 This is a top view of a stamping die (without an upper die) according to an embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the base structure of an embodiment of the present utility model;

[0020] Figure 5 This is a schematic diagram of the first and second lower mold structures according to an embodiment of the present invention;

[0021] Figure 6 This is a schematic diagram of the insertion limiting plate structure according to an embodiment of the present utility model.

[0022] In the diagram: 1. Base; 2. First lower mold; 3. Second lower mold; 4. First lead screw stepper motor; 5. First position sensor; 6. Second position sensor; 7. Upper mold; 8. Slide groove; 9. First slider; 10. Second slider; 11. Connecting post; 12. First material discharge port; 13. Second material discharge port; 14. Base material discharge port; 15. Second lead screw stepper motor; 16. Insertion limit plate; 17. Slide rail; 18. Third slider; 19. Third position sensor; 20. Fourth position sensor. Detailed Implementation

[0023] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0024] like Figures 1-6 As shown, the stamping die with switchable stator core sheet shape provided in this embodiment includes a base 1. A first lower die 2 and a second lower die 3 are fixedly connected inside the base 1. A first lead screw stepper motor 4 is connected to the outside of the second lower die 3. The first lead screw stepper motor 4 pushes the first lower die 2 and the second lower die 3 to slide left and right inside the base 1. A first position sensor 5 and a second position sensor 6 are respectively provided on the inner walls of the left and right sides of the base 1. The first position sensor 5 and the second position sensor 6 detect the position of the first lower die 2 and the second lower die 3 respectively and feed the signal back to the first lead screw stepper motor 4. An upper die 7 is provided at intervals directly above the center of the base 1.

[0025] The shapes inside the first lower mold 2 and the second lower mold 3 are different.

[0026] When the first lower die 2 is needed, the first lead screw stepper motor 4 moves the first lower die 2 to the required position according to the position signal fed back by the first position sensor 5, and then stops the operation, so that the position of the first lower die 2 remains stationary; when the second lower die 3 is needed, the first lead screw stepper motor 4 moves the second lower die 3 to the required position according to the position signal fed back by the second position sensor 6, and then stops the operation, so that the position of the second lower die 3 remains stationary.

[0027] Through the above actions, the lower die is switched and the upper die 7 is installed on the stamping equipment, so that the die can stamp out loose pieces of different shapes.

[0028] In this embodiment, as Figure 1 As shown, the inner walls of the front and rear sides of the base 1 are provided with sliding grooves 8 along their length direction, and the outer walls of the first lower mold 2 and the second lower mold 3 are respectively provided with a first slider 9 and a second slider 10 to ensure that the first lower mold 2 and the second lower mold 3 remain stable during sliding and avoid shaking and displacement.

[0029] In this embodiment, as Figure 1 As shown, the upper mold 7 has a disc-shaped structure. The edges of the first lower mold 2, the second lower mold 3, and the upper mold 7 are all provided with cutting edges. The upper mold 7 determines the outer contour of the piece, and the first lower mold 2 and the second lower mold 3 determine the internal shape of the piece, so that the upper mold 7 can be adapted to lower molds of different shapes.

[0030] In this embodiment, as Figure 1 As shown, the first lower die 2 and the second lower die 3 are fixedly connected by a connecting column 11 to ensure synchronous sliding when the first lead screw stepper motor 4 is driven.

[0031] In this embodiment, as Figure 4 and Figure 5 As shown, the bottom of the first lower die 2 and the second lower die 3 are respectively provided with a first material discharge port 12 and a second material discharge port 13, and the center of the base 1 is provided with a base material discharge port 14, which facilitates the rapid discharge of waste material after stamping and avoids accumulation that affects subsequent operations.

[0032] In this embodiment, as Figure 1 As shown, a second lead screw stepper motor 15 is provided directly below the material discharge port 14 of the base, and an insertion limiting plate 16 is provided above the second lead screw stepper motor 15. After the lower die is in position, the second lead screw stepper motor 15 can push the insertion limiting plate 16 to move upward, so that the insertion limiting plate 16 passes through the material discharge port 14 of the base and the material discharge port of the lower die, thereby limiting the position of the lower die and preventing the lower die from shaking and affecting the stamping effect.

[0033] In this embodiment, as Figure 6 As shown, slide rails 17 are provided on both sides of the second lead screw stepper motor 15, and third sliders 18 are provided at both ends of the insertion limit plate 16 to ensure that the vertical movement of the insertion limit plate 16 is stable and the insertion position is accurate.

[0034] In this embodiment, as Figure 3 As shown, a third position sensor 19 is spaced apart on the inner wall of the left side of the base 1, on one side of the first position sensor 5. A fourth position sensor 20 is spaced apart on the inner wall of the right side of the base 1, on one side of the second position sensor 6. The third position sensor 19 and the fourth position sensor 20 detect the positions of the first lower mold 2 and the second lower mold 3 respectively and feed the signals back to the second lead screw stepper motor 15. When the first lead screw stepper motor 4 receives the signal from the first position sensor 5 or the second position sensor 6, it pushes the first lower mold 2 or the second lower mold 3 to the required position. Then, the second lead screw stepper motor 15 receives the arrival signal from the third position sensor 19 and the fourth position sensor 20, starts and pushes the plug-in limiting plate 16 to move upward, fixing the position of the first lower mold 2 or the second lower mold 3.

[0035] In summary, in this embodiment, the first lead screw stepper motor 4 drives the rapid switching between the first lower die 2 and the second lower die 3, combined with the first position sensor 5 and the second position sensor 6 to achieve precise positioning, enabling the switching of different stator core sheet shapes and allowing the die to stamp out sheets of different shapes. Simultaneously, the second lead screw stepper motor 15 and the plug-in limiting plate 16 work together to fix and limit the lower die after it reaches the target position, ensuring the stability and forming accuracy of the stamping process.

[0036] The above description is only a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope disclosed by the present utility model, based on the technical solution and concept of the present utility model, shall fall within the protection scope of the present utility model.

Claims

1. A stamping die with switchable stator core lamination shapes, characterized in that: The base includes a base (1), inside which a first lower mold (2) and a second lower mold (3) are fixedly connected. A first lead screw stepper motor (4) is connected to the outside of the second lower mold (3). The first lead screw stepper motor (4) pushes the first lower mold (2) and the second lower mold (3) to slide left and right inside the base (1). A first position sensor (5) and a second position sensor (6) are respectively provided on the inner walls of the left and right sides of the base (1). The first position sensor (5) and the second position sensor (6) detect the position of the first lower mold (2) and the position of the second lower mold (3) respectively and feed the signal back to the first lead screw stepper motor (4). An upper mold (7) is provided at intervals directly above the center of the base (1).

2. The stamping die with switchable stator core sheet shapes according to claim 1, characterized in that: The base (1) has a sliding groove (8) on the inner wall of the front and rear sides along its length direction, and the first lower mold (2) and the second lower mold (3) are respectively provided with a first slider (9) and a second slider (10).

3. A stamping die with switchable stator core sheet shapes according to claim 1, characterized in that: The upper mold (7) has a disc-shaped structure, and the edges of the first lower mold (2), the second lower mold (3), and the upper mold (7) are all provided with cutting edges.

4. A stamping die with switchable stator core sheet shapes according to claim 1, characterized in that: The first lower mold (2) and the second lower mold (3) are fixedly connected by a connecting column (11).

5. A stamping die with switchable stator core sheet shapes according to claim 1, characterized in that: The bottom of the first lower mold (2) and the second lower mold (3) are respectively provided with a first material discharge port (12) and a second material discharge port (13), and the base (1) is provided with a base material discharge port (14) at the center.

6. A stamping die with switchable stator core sheet shapes according to claim 5, characterized in that: A second lead screw stepper motor (15) is provided directly below the material outlet (14) of the base, and a plug-in limiting plate (16) is provided above the second lead screw stepper motor (15).

7. A stamping die with switchable stator core sheet shapes according to claim 6, characterized in that: The second lead screw stepper motor (15) is provided with slide rails (17) on both sides, and the plug-in limiting plate (16) is provided with third sliders (18) at both ends.

8. A stamping die with switchable stator core sheet shapes according to claim 6, characterized in that: A third position sensor (19) is provided at a distance from the first position sensor (5) on the inner wall of the left side of the base (1), and a fourth position sensor (20) is provided at a distance from the second position sensor (6) on the inner wall of the right side of the base (1). The third position sensor (19) and the fourth position sensor (20) detect the position of the first lower die (2) and the position of the second lower die (3) respectively and feed the signal back to the second lead screw stepper motor (15).

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