A progressive stamping die for motor cores

Abstract

This invention provides a progressive stamping die for motor cores, belonging to the field of motor core processing technology. It addresses the problem that existing core material feeding mechanisms typically apply progressive power only from one side of the material, making it difficult to achieve balanced force distribution across the entire material strip. Furthermore, due to the thinness and high flexibility of the core material, deviations in the movement path are possible. The die includes a lower die assembly, adjusting cavities, a first drive shaft, an anti-deviation component, and a stamping adaptation component. Two adjusting cavities are respectively located inside the lower die assembly. The first drive shaft is coaxially fixedly connected to the rear of the drive handwheel. The anti-deviation component is located inside the lower die assembly. The stamping adaptation component is located inside the two adjusting cavities. This invention solves the problem of core material deviation and adapts to core materials of different widths through two sets of anti-deviation wheels with adjustable spacing. The rotating column and adapting spring ensure smooth conveying and continuous stamping by reducing friction and avoiding interference, thus improving production quality and efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of motor core processing technology, and more specifically, it relates to a progressive stamping die for motor cores. Background Technology

[0002] The progressive stamping die for motor cores is a special precision mold used for mass production of motor cores, the core magnetic circuit components of motors. Its core feature is based on the "progressive stamping" motor core processing technology, which can integrate multiple continuous processing stations within a single mold. Through the feeding mechanism, the process proceeds in sequence, including positioning hole punching, slot punching, pole shoe forming, and core lamination blanking, ultimately completing the complete processing of the core lamination in one go. Existing progressive stamping dies for motor cores generally consist of an upper die set, a lower die set, and guide pillars and guide sleeves.

[0003] Existing application number: CN202122327465.6. This utility model provides a progressive stamping die for motor cores, including an upper die base and a lower die base. A blanking stamping die is provided between the upper and lower die bases. The blanking stamping die includes a blanking punch disposed on the upper die base and a blanking die disposed on the lower die base. A stamping sub-die for stamping intermediate teeth on the core is slidably disposed between the upper and lower die bases along the Y-axis direction. The stamping sub-die and the blanking stamping die are arranged sequentially along the X-axis direction. A driving mechanism for driving the stamping sub-die to slide is provided on the lower die base. The progressive stamping die for motor cores disclosed in this utility model can stamp cores of various sizes using only one set of dies, with high production efficiency and the ability to meet mass production needs.

[0004] Based on the above, in the process of conveying iron core raw materials in progressive stamping dies, the existing feeding mechanism usually applies progressive power only from one side of the raw material. This unilateral driving force is inherently difficult to achieve overall force balance of the strip, and it is very easy to cause the strip to shift to the side with less resistance. In addition, since the iron core raw material is thin and has strong flexibility, it lacks sufficient rigidity to resist external force interference during the conveying process. Therefore, during the feeding process, the iron core raw material and the center line of the die strip channel may be misaligned, affecting the final processing accuracy. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a progressive stamping die for motor cores. This addresses the issue that existing feeding mechanisms typically apply progressive force only from one side of the raw material during the conveying process of the progressive stamping die. This unilateral driving force makes it difficult to achieve overall force balance on the material strip, easily causing the strip to shift towards the side with less resistance. Furthermore, because the core material is thin and highly flexible, it lacks sufficient rigidity to resist external interference during conveying. Therefore, during the feeding process, the core material and the centerline of the die's material strip channel may become misaligned, affecting the final processing accuracy.

[0006] The purpose and effect of this utility model's progressive stamping die for motor cores are achieved through the following specific technical means: A progressive stamping die for an electric motor core includes a lower die assembly, adjusting cavities, an upper die assembly, a drive handwheel, a first transmission shaft, an anti-deviation component, and a stamping adaptation component. Two adjusting cavities are respectively located inside the lower die assembly. The upper die assembly is positioned above the lower die assembly. The drive handwheel is rotatably connected to the front of the lower die assembly. The first transmission shaft is coaxially and fixedly connected to the rear of the drive handwheel. The anti-deviation component is located inside the lower die assembly. The stamping adaptation component is located inside the two adjusting cavities.

[0007] Furthermore, the anti-deviation component includes: an adjusting worm, a transmission shaft, and an adjusting worm wheel; the adjusting worm is coaxially and fixedly connected to the rear end of the first transmission shaft; the transmission shaft is rotatably connected inside the lower module; the adjusting worm wheel is coaxially and fixedly connected to the outside of the transmission shaft, and the adjusting worm wheel meshes with the adjusting worm.

[0008] Furthermore, the anti-deviation component also includes: an adjusting gear and an adjusting rack; the adjusting gear is coaxially fixedly connected above the transmission shaft; two adjusting racks are provided, and the two adjusting racks are slidably connected inside the lower module, and the two adjusting racks mesh with the adjusting gear respectively.

[0009] Furthermore, the anti-deviation component also includes: a connecting rod and a connecting slider; two connecting rods are provided, and the two connecting rods are respectively fixedly connected to the outside of two adjusting racks; two connecting sliders are provided, and the two connecting sliders are respectively slidably connected inside the lower module, and the two connecting sliders are respectively fixedly connected to the outer ends of the two connecting rods.

[0010] Furthermore, the anti-deviation assembly also includes: adjusting rods and anti-deviation wheels; two adjusting rods are provided, and the two adjusting rods are respectively fixedly connected above the two connecting sliders; multiple anti-deviation wheels are provided, and the multiple anti-deviation wheels are respectively provided above the two adjusting rods.

[0011] Furthermore, the stamping adaptation assembly includes: rotating columns and adaptation springs; multiple rotating columns are provided, with the bottom of each rotating column rotatably connected to two adjusting rods, and the top of each rotating column slidably connected to the inside of multiple anti-deviation wheels; multiple adaptation springs are provided, with the bottom of each adaptation spring fixedly connected to the top of each rotating column, and the top of each adaptation spring fixedly connected to the inside of multiple anti-deviation wheels.

[0012] Compared with the prior art, the present invention has the following beneficial effects: Firstly, the two sets of anti-deviation wheels effectively solve the problem of the iron core material easily running off-center. The distance between the two sets of anti-deviation wheels can be flexibly adjusted by driving the handwheel. This allows the anti-deviation wheels to precisely fit the sides of iron core materials of different widths, providing stable limit constraints for the material and avoiding deviation caused by lack of adaptability constraints during transportation. At the same time, the precision of mechanical transmission ensures uniform spacing adjustment, ensuring that the material is always transported along the center line of the mold material channel, effectively improving the processing accuracy of the iron core.

[0013] Secondly, the rotating column allows the anti-deviation wheel to rotate synchronously with the conveying of the iron core material, which greatly reduces the sliding friction between the anti-deviation wheel and the material. This avoids material conveying jams or edge wear due to excessive friction, ensuring the smooth continuous progress of the material strip. Meanwhile, the adapting spring gives the anti-deviation wheel the characteristic of "elastic extension and retraction", avoiding rigid interference during the pressing process of the upper module, without affecting the normal operation of the stamping action, and ensuring the continuous stability of the progressive stamping process.

[0014] This invention solves the problem of iron core material deviation by using two sets of anti-deviation wheels with adjustable spacing, and adapts to iron core materials of different widths. The rotating column and the adapting spring ensure smooth conveying and continuous stamping by reducing friction and avoiding interference. Overall, it not only directly improves the production quality and efficiency of motor iron cores, but also provides a reference for the optimization of mechanical structures for continuous processing of precision parts in this field. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the lower module structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the adjusting rod structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the first transmission shaft structure of this utility model.

[0019] Figure 5 This is a schematic diagram of the adjusting gear structure of this utility model.

[0020] Figure 6 This is a schematic diagram of the cross-sectional structure of the anti-deviation wheel of this utility model.

[0021] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Lower module; 101. Adjustment cavity; 2. Upper module; 3. Drive handwheel; 301. First transmission shaft; 302. Adjusting worm gear; 4. Transmission shaft; 401. Adjusting worm wheel; 5. Adjusting gear; 6. Adjusting rack; 601. Connecting rod; 602. Connecting slider; 7. Adjusting rod; 701. Rotating column; 8. Anti-deviation wheel; 9. Adaptive spring. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] Example 1: As attached Figure 1 To be continued Figure 6 As shown: This utility model provides a progressive stamping die for a motor core, including a lower die 1, an adjusting cavity 101, an upper die 2, a drive handwheel 3, a first transmission shaft 301, and an anti-deviation component; two adjusting cavities 101 are provided, and the two adjusting cavities 101 are respectively provided inside the lower die 1; the upper die 2 is provided above the lower die 1; the drive handwheel 3 is rotatably connected to the front of the lower die 1; the first transmission shaft 301 is coaxially fixedly connected to the rear of the drive handwheel 3; the anti-deviation component is provided inside the lower die 1.

[0024] The anti-deviation component includes: an adjusting worm 302, a transmission shaft 4, and an adjusting worm wheel 401; the adjusting worm 302 is coaxially fixedly connected to the rear end of the first transmission shaft 301; the transmission shaft 4 is rotatably connected inside the lower module 1; the adjusting worm wheel 401 is coaxially fixedly connected to the outside of the transmission shaft 4, and the adjusting worm wheel 401 meshes with the adjusting worm 302.

[0025] The anti-deviation component also includes: an adjusting gear 5 and an adjusting rack 6; the adjusting gear 5 is coaxially fixedly connected above the transmission shaft 4; two adjusting racks 6 are provided, and the two adjusting racks 6 are slidably connected inside the lower module 1, and the two adjusting racks 6 are respectively engaged with the adjusting gear 5.

[0026] The anti-offset component also includes: a connecting rod 601 and a connecting slider 602; two connecting rods 601 are provided, and the two connecting rods 601 are respectively fixedly connected to the outside of the two adjusting racks 6; two connecting sliders 602 are provided, and the two connecting sliders 602 are respectively slidably connected inside the lower module 1, and the two connecting sliders 602 are respectively fixedly connected to the outer ends of the two connecting rods 601.

[0027] The anti-deviation component also includes: adjusting rods 7 and anti-deviation wheels 8; two adjusting rods 7 are provided, and the two adjusting rods 7 are respectively fixedly connected above the two connecting sliders 602; multiple anti-deviation wheels 8 are provided, and the multiple anti-deviation wheels 8 are respectively provided above the two adjusting rods 7.

[0028] The specific usage and function of this embodiment are as follows: During use, the iron core material contacts the anti-deviation wheel 8, which guides the iron core material and prevents it from deviating. When the width of the iron core material does not match the distance between the front and rear anti-deviation wheels 8, the drive handwheel 3 is rotated to drive the first transmission shaft 301 to rotate. The first transmission shaft 301 drives the transmission shaft 4 to rotate through the worm gear transmission mechanism formed by the meshing of the adjusting worm 401 and the adjusting worm 302. The transmission shaft 4 drives the two connecting rods 601 to move outward or inward simultaneously through the gear and rack transmission mechanism formed by the meshing of two adjusting racks 6 and the adjusting gear 5, respectively. The connecting rods 601 drive the connecting slider 602 and the adjusting rod 7 to move synchronously, thereby adjusting the distance between the front and rear anti-deviation wheels 8 so that the front and rear anti-deviation wheels 8 contact the front and rear sides of the iron core material respectively.

[0029] Example 2: Based on Example 1, as shown in the appendix Figure 1 To be continued Figure 6 As shown, it also includes a stamping adaptation component, which is disposed inside the two adjustment cavities 101.

[0030] The stamping adaptation component includes: a rotating column 701 and an adaptation spring 9; multiple rotating columns 701 are provided, with the bottom of each rotating column 701 rotatably connected to the top of two adjusting rods 7, and the top of each rotating column 701 slidably connected to the inside of multiple anti-deviation wheels 8; multiple adaptation springs 9 are provided, with the bottom of each adaptation spring 9 fixedly connected to the top of each rotating column 701, and the top of each adaptation spring 9 fixedly connected to the inside of multiple anti-deviation wheels 8.

[0031] The specific usage and function of this embodiment: The bottom of the multiple rotating columns 701 are respectively rotatably connected to the top of the two adjusting rods 7, so that during the conveying process of the iron core material, its front and rear edges will drive the anti-deviation wheel 8 to rotate, reducing friction and ensuring that the anti-deviation wheel 8 will not affect the conveying of the iron core material; during the process of the upper module 2 moving downward to press the iron core material, the anti-deviation wheel 8 will be driven downward by the falling upper module 2, without affecting the pressing of the iron core material. After the pressing is completed, under the rebound action of the adaptation spring 9, the anti-deviation wheel 8 moves upward to return to its original position and continues to guide the iron core material during the conveying process.

[0032] The following points should be noted in this article: 1. The accompanying drawings of this embodiment only involve the structures involved in this embodiment; other structures can refer to the general design.

[0033] 2. Where there is no conflict, this embodiment and the features in the embodiment can be combined with each other to obtain new embodiments.

[0034] The above are merely specific implementations of this embodiment, but the protection scope of this embodiment is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this embodiment should be included within the protection scope of this embodiment. Therefore, the protection scope of this embodiment should be determined by the protection scope of the claims.

Claims

1. A progressive stamping die for an electric motor core, characterized in that: It includes a lower module (1), an adjustment cavity (101), an upper module (2), a drive handwheel (3), a first transmission shaft (301), an anti-deviation component, and a stamping adaptation component; two adjustment cavities (101) are opened, and the two adjustment cavities (101) are respectively opened inside the lower module (1); the upper module (2) is set above the lower module (1); the drive handwheel (3) is rotatably connected to the front of the lower module (1); the first transmission shaft (301) is coaxially fixedly connected to the rear of the drive handwheel (3); the anti-deviation component is set inside the lower module (1); the stamping adaptation component is set inside the two adjustment cavities (101).

2. The progressive stamping die for a motor core as described in claim 1, characterized in that: The anti-deviation component includes: an adjusting worm (302), a transmission shaft (4), and an adjusting worm wheel (401); the adjusting worm (302) is coaxially fixedly connected to the rear end of the first transmission shaft (301); the transmission shaft (4) is rotatably connected inside the lower module (1); the adjusting worm wheel (401) is coaxially fixedly connected to the outside of the transmission shaft (4), and the adjusting worm wheel (401) meshes with the adjusting worm (302).

3. The progressive stamping die for a motor core as described in claim 2, characterized in that: The anti-deviation component also includes: an adjusting gear (5) and an adjusting rack (6); the adjusting gear (5) is coaxially fixedly connected above the transmission shaft (4); two adjusting racks (6) are provided, and the two adjusting racks (6) are slidably connected inside the lower module (1), and the two adjusting racks (6) mesh with the adjusting gear (5) respectively.

4. The progressive stamping die for a motor core as described in claim 3, characterized in that: The anti-deviation component further includes: a connecting rod (601) and a connecting slider (602); two connecting rods (601) are provided, and the two connecting rods (601) are respectively fixedly connected to the outside of two adjusting racks (6); two connecting sliders (602) are provided, and the two connecting sliders (602) are respectively slidably connected inside the lower module (1), and the two connecting sliders (602) are respectively fixedly connected to the outer ends of the two connecting rods (601).

5. The progressive stamping die for a motor core as described in claim 4, characterized in that: The anti-deviation assembly also includes: an adjusting rod (7) and an anti-deviation wheel (8); two adjusting rods (7) are provided, and the two adjusting rods (7) are respectively fixedly connected above the two connecting sliders (602); multiple anti-deviation wheels (8) are provided, and the multiple anti-deviation wheels (8) are respectively provided above the two adjusting rods (7).

6. The progressive stamping die for a motor core as described in claim 5, characterized in that: The stamping adaptation assembly includes: a rotating column (701) and an adaptation spring (9); multiple rotating columns (701) are provided, the bottom of the multiple rotating columns (701) are respectively rotatably connected above two adjusting rods (7), and the top of the multiple rotating columns (701) are respectively slidably connected inside multiple anti-deviation wheels (8); multiple adaptation springs (9) are provided, the bottom of the multiple adaptation springs (9) are respectively fixedly connected above the multiple rotating columns (701), and the top of the multiple adaptation springs (9) are respectively fixedly connected inside the multiple anti-deviation wheels (8).

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