Transformer silicon steel sheet blanking equipment

Abstract

The utility model discloses a transformer silicon steel sheet blanking device, and relates to the field of devices. A lower die holder is fixedly mounted on the top face of the base, a lower cutting die is fixedly mounted on the front side of the top end of the lower die holder, a support is fixedly mounted on the rear side of the top end of the lower die holder, an upper die holder is slidably mounted on the front side of the support, and an upper cutting die is fixedly mounted at the bottom end of the upper die holder. A lifting driving assembly capable of driving the upper cutting die to ascend and descend in a reciprocating mode is fixedly installed on the support. A supporting plate is fixedly installed at the top end of the support, a buffering shaft is fixedly installed at the top end of the upper die base, the upper end of the buffering shaft slidably extends to the position above the supporting plate, a top plate is fixedly installed at the top end of the buffering shaft, and the outer ring of the buffering shaft is movably sleeved with a buffering spring connected between the top plate and the supporting plate in an abutting mode. The buffer shaft and the buffer spring are matched to elastically support the upper cutting die, so that the driving force generated when the lifting driving assembly drives the upper cutting die to move upwards is reduced, and the energy consumption of equipment is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of punching equipment, and more specifically, it relates to a punching equipment for silicon steel sheets of transformers. Background Technology

[0002] Silicon steel sheets are essential components of transformers, motors, and generators, primarily used to make iron cores. They are a soft magnetic alloy of silicon and iron with extremely low carbon content. During transformer core production, silicon steel sheets need to be punched into suitable shapes using punching equipment. Existing punching equipment for silicon steel sheets suffers from increased energy consumption due to the large weight of the upper die, requiring significant driving force for its reciprocating motion. Utility Model Content

[0003] In view of the problems in the related technologies, this utility model proposes a transformer silicon steel sheet punching equipment to overcome the above-mentioned technical problems existing in the existing related technologies.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model is a transformer silicon steel sheet punching equipment, including a base, a lower die base is fixedly installed on the top surface of the base, a lower die is fixedly installed on the front side of the top of the lower die base, a support is fixedly installed on the rear side of the top of the lower die base, an upper die base is slidably installed on the front side of the support, an upper die is fixedly installed on the bottom end of the upper die base, and a lifting drive assembly that can drive the upper die to reciprocate up and down is fixedly installed on the support.

[0006] A support plate is fixedly installed at the top of the support, and a buffer shaft is fixedly installed at the top of the upper mold base. The upper end of the buffer shaft slides to the top of the support plate, and a top plate is fixedly installed at the top of the buffer shaft. A buffer spring is movably fitted on the outer ring of the buffer shaft, abutting between the top plate and the support plate.

[0007] Furthermore, the lifting drive assembly includes a motor, which is fixedly installed on the upper end of the support. An eccentric shaft is driven at the output end of the motor. The eccentric shaft extends through a through hole in the middle of the upper mold base to the front side of the upper mold base. A connecting sleeve is rotatably installed at the front end of the eccentric shaft via a bearing. The bottom end of the connecting sleeve is rotatably connected to the lower end of the upper mold base.

[0008] Furthermore, an eccentric sleeve is also installed between the eccentric shaft and the connecting sleeve.

[0009] Furthermore, a lower limiting plate located on one side of the lower die is fixedly installed on the front side of the lower die base, and an upper limiting plate located above the lower limiting plate is fixedly installed on the support.

[0010] Furthermore, sliders are fixedly installed on both sides of the bottom surface of the base, and guide rails are slidably mounted on the bottom end of the sliders. An adjusting screw is also threadedly connected to the bottom end of the base through a threaded seat, and an adjusting motor is driven to one end of the adjusting screw.

[0011] Furthermore, a positioning shaft is fixedly installed on the bottom surface of the lower mold base, and a positioning hole is provided on the top surface of the base for movably engaging with the positioning shaft.

[0012] Furthermore, a limiting slide rail is fixedly installed on one side of the support, and a limiting seat that slides and engages with the limiting slide rail is fixedly installed on one side of the upper mold base.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the upper die is elastically supported by the buffer shaft and the buffer spring, so as to reduce the driving force when the lifting drive assembly drives the upper die to move upward, thereby reducing the energy consumption of the equipment when punching silicon steel sheets. In addition, the buffer spring can also buffer the upper die when it reciprocates and moves up and down, making the operation of the upper die more stable.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, the drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is one of the three-dimensional structural schematic diagrams of the punching equipment of this utility model;

[0018] Figure 2 This is the second three-dimensional structural schematic diagram of the punching equipment of this utility model;

[0019] Figure 3 This is the third three-dimensional structural schematic diagram of the punching equipment of this utility model;

[0020] In the diagram: 1. Base; 2. Lower mold base; 3. Support; 4. Motor; 5. Support plate; 6. Buffer spring; 7. Buffer shaft; 8. Top plate; 9. Upper mold base; 10. Connecting sleeve; 11. Eccentric shaft; 12. Upper die; 13. Upper limit plate; 14. Adjusting motor; 15. Lower die; 16. Lower limit plate; 17. Guide rail; 18. Slider; 19. Limiting slide rail; 20. Limiting seat; 21. Positioning shaft; 22. Eccentric sleeve; 23. Adjusting screw. Detailed Implementation

[0021] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0022] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0023] Please see Figures 1-3 As shown, this utility model is a transformer silicon steel sheet punching equipment, including a base 1, a lower die base 2 fixedly installed on the top surface of the base 1, a lower die 15 fixedly installed on the front side of the top of the lower die base 2, a support 3 fixedly installed on the rear side of the top of the lower die base 2, an upper die base 9 slidably installed on the front side of the support 3, an upper die 12 fixedly installed at the bottom end of the upper die base 9, and a lifting drive assembly that can drive the upper die 12 to reciprocate up and down is fixedly installed on the support 3; a support plate 5 is fixedly installed on the top of the support 3, a buffer shaft 7 is fixedly installed on the top of the upper die base 9, the upper end of the buffer shaft 7 slides to extend above the support plate 5, a top plate 8 is fixedly installed on the top of the buffer shaft 7, and a buffer spring 6 is movably fitted on the outer ring of the buffer shaft 7, abutting between the top plate 8 and the support plate 5;

[0024] The buffer spring 6 provides elastic support to the upper die base 9 and the upper die 12 through the top plate 8 and the buffer shaft 7. When the silicon steel sheet is punched, the silicon steel sheet is first positioned on the top surface of the lower die 15. Then, the upper die base 9 and the upper die 12 are driven to move downward through the lifting drive assembly, so that the upper die 12 and the lower die 15 cooperate to punch the silicon steel sheet. At this time, the upper die base 9 drives the buffer shaft 7 and the top plate 8 to move downward, so that the top plate 8 abuts and retracts the buffer spring 6. When the punching is completed, the lifting drive assembly drives the upper die base 9 and the upper die 12 to move upward and reset. The buffer spring 6 is reset and extended under the action of elastic force, so as to assist the upper die base 9 and the upper die 12 to move upward and reset through the top plate 8 and the buffer shaft 7.

[0025] The upper die 12 is elastically supported by the buffer shaft 7 and the buffer spring 6 to reduce the driving force when the lifting drive assembly drives the upper die 12 to move upward, thereby reducing the energy consumption of the equipment when punching silicon steel sheets. In addition, the buffer spring 6 can also buffer the upper die 12 when it reciprocates and moves up and down, making the operation of the upper die 12 more stable.

[0026] Specifically, the lifting drive assembly includes a motor 4, which is fixedly installed on the upper end of the support 3. An eccentric shaft 11 is installed at the output end of the motor 4. The eccentric shaft 11 extends through the through hole in the middle of the upper mold base 9 to the front side of the upper mold base 9. A connecting sleeve 10 is rotatably installed at the front end of the eccentric shaft 11 through a bearing. The bottom end of the connecting sleeve 10 is rotatably connected to the lower end of the upper mold base 9.

[0027] When the lifting drive assembly is working, the eccentric shaft 11 is driven to rotate by the motor 4. During the rotation, the eccentric shaft 11 drives the connecting sleeve 10 to reciprocate up and down, which in turn causes the connecting sleeve 10 to drive the upper mold base 9 and the upper die 12 to reciprocate up and down.

[0028] Specifically, an eccentric sleeve 22 is installed between the eccentric shaft 11 and the connecting sleeve 10. The eccentric sleeve 22 cooperates with the eccentric shaft 11 to adjust the lifting stroke of the upper die 12. Thus, when the die changes size due to reciprocating punching wear, the lifting stroke of the upper die 12 can be adjusted by installing the eccentric sleeve 22 with the corresponding eccentricity to ensure normal cutting operation of the equipment.

[0029] Specifically, a lower limit plate 16 located on one side of the lower die 15 is fixedly installed on the front side of the lower die base 2, and an upper limit plate 13 located above the lower limit plate 16 is fixedly installed on the support 3. A gap is left between the lower limit plate 16 and the upper limit plate 13 for the silicon steel sheet to pass through, so that the silicon steel sheet being punched can be limited by the lower limit plate 16 and the upper limit plate 13, thereby improving the stability of the silicon steel sheet during punching.

[0030] Specifically, sliders 18 are fixedly installed on both sides of the bottom surface of the base 1. The bottom end of the sliders 18 is slidably fitted with guide rails 17. The bottom end of the base 1 is also threadedly connected to an adjusting screw 23. One end of the adjusting screw 23 is driven by an adjusting motor 14. The adjusting motor 14 drives the adjusting screw 23 to rotate. When the adjusting screw 23 rotates, it can drive the base 1 to slide along the guide rails 17 through threaded transmission, thereby adjusting the overall position of the equipment.

[0031] Specifically, a positioning shaft 21 is fixedly installed on the bottom surface of the lower mold base 2, and a positioning hole is provided on the top surface of the base 1 for movably inserting into the positioning shaft 21. When the mold is installed on the base 1, the positioning shaft 21 can be inserted into the positioning hole first, and then the angle of the equipment can be adjusted by rotating the positioning shaft 21 as the axis, thereby facilitating the angle adjustment and alignment of the equipment.

[0032] Specifically, a limiting slide rail 19 is fixedly installed on one side of the support 3, and a limiting seat 20 that slides and engages with the limiting slide rail 19 is fixedly installed on one side of the upper mold base 9. The upper mold base 9 is slidably limited by the cooperation of the limiting slide rail 19 and the limiting seat 20, so that the upper mold base 9 and the upper die 12 move more smoothly.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize the utility model.

Claims

1. A transformer silicon steel sheet punching device, comprising a base (1), characterized in that: The base (1) has a lower mold base (2) fixedly installed on its top surface. The lower die (15) is fixedly installed on the front side of the top of the lower mold base (2). The support (3) is fixedly installed on the rear side of the top of the lower mold base (2). The upper mold base (9) is slidably installed on the front side of the support (3). The upper die (12) is fixedly installed on the bottom end of the upper mold base (9). The support (3) has a lifting drive assembly that can drive the upper die (12) to reciprocate up and down. A support plate (5) is fixedly installed at the top of the support (3), and a buffer shaft (7) is fixedly installed at the top of the upper mold base (9). The upper end of the buffer shaft (7) slides to the top of the support plate (5). A top plate (8) is fixedly installed at the top of the buffer shaft (7). A buffer spring (6) is movably fitted on the outer ring of the buffer shaft (7) and abuts against the top plate (8) and the support plate (5).

2. The transformer silicon steel sheet punching equipment according to claim 1, characterized in that: The lifting drive assembly includes a motor (4), which is fixedly installed on the upper end of the support (3). An eccentric shaft (11) is driven at the output end of the motor (4). The eccentric shaft (11) passes through the through hole in the middle of the upper mold base (9) and extends to the front side of the upper mold base (9). A connecting sleeve (10) is rotatably installed at the front end of the eccentric shaft (11) through a bearing. The bottom end of the connecting sleeve (10) is rotatably connected to the lower end of the upper mold base (9).

3. The transformer silicon steel sheet punching equipment according to claim 2, characterized in that: An eccentric sleeve (22) is also installed between the eccentric shaft (11) and the connecting sleeve (10).

4. The transformer silicon steel sheet punching equipment according to claim 1, characterized in that: The lower mold base (2) is fixedly installed with a lower limiting plate (16) located on one side of the lower die (15), and the support (3) is fixedly installed with an upper limiting plate (13) located above the lower limiting plate (16).

5. The transformer silicon steel sheet punching equipment according to claim 1, characterized in that: The base (1) has sliders (18) fixedly installed on both sides of its bottom surface. The bottom end of the slider (18) is slidably fitted with a guide rail (17). The bottom end of the base (1) is also threadedly connected to an adjusting screw (23) via a threaded seat. One end of the adjusting screw (23) is driven by an adjusting motor (14).

6. The transformer silicon steel sheet punching equipment according to claim 1, characterized in that: The bottom surface of the lower mold base (2) is fixedly installed with a positioning shaft (21), and the top surface of the base (1) is provided with a positioning hole that is movably inserted into the positioning shaft (21).

7. The transformer silicon steel sheet punching equipment according to claim 1, characterized in that: A limiting slide rail (19) is fixedly installed on one side of the support (3), and a limiting seat (20) that slides and engages with the limiting slide rail (19) is fixedly installed on one side of the upper mold base (9).

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