Rotor punching die
The design of the combination structure of the limiting plate and the insert plate simplifies the punch replacement process of the rotor lamination die, solves the problem of cumbersome die replacement in traditional dies, improves production efficiency and reduces costs.
Patent Information
- Application Number
- CN202520198806.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-08
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-08
AI Technical Summary
The process of changing the punches in traditional rotor lamination dies is cumbersome, time-consuming, and labor-intensive, affecting production efficiency and costs.
A rotor lamination die was designed, which uses a combination of a limiting plate, an insert plate, an L-shaped baffle, and an elastic element to enable quick disassembly and installation of the punch, simplifying the replacement process.
It enables quick disassembly and installation of the punch, reducing maintenance time, improving production efficiency, and lowering production costs.
Smart Images

Figure CN223862672U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lamination molds, specifically a rotor lamination mold. Background Technology
[0002] In the motor manufacturing industry, rotor laminations are a key component of motor rotors. Their quality and production efficiency directly affect the performance and production cycle of motors. Rotor lamination dies, as an important tool for producing rotor laminations, play a decisive role in the overall quality and efficiency of motor manufacturing.
[0003] The punch is the most easily worn part of the die. As production continues, the punch needs to be replaced in time after it wears out to ensure the quality and precision of the laminations. The traditional method of replacing the punch is cumbersome and complicated, often requiring a lot of time and manpower. During the replacement process, not only do multiple parts need to be disassembled, but the position and installation accuracy of the punch also need to be precisely adjusted. This process is not only inefficient, but also prone to affecting the overall performance of the die due to operational errors. Frequent and time-consuming punch replacement work seriously affects the production schedule, increases production costs, and reduces the company's market competitiveness. Therefore, it is necessary to design a rotor lamination die to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a rotor lamination die to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a rotor lamination mold, comprising a mounting plate and a base plate, wherein a plurality of limiting plates are mounted on the bottom surface of the mounting plate, an insert plate is provided on the inner side of the limiting plates, a plurality of limiting plates are opened on the bottom surface of the insert plate, the limiting plates pass through the slots, and a limiting component is provided on one side of the limiting plates;
[0006] A punch is installed at the bottom of the insert plate, and a punch hole is opened on the surface of the base plate. The punch passes through the punch hole. A telescopic rod is installed on the top surface of the base plate. A lifting plate is installed at one end of the inner rod of the telescopic rod. An elastic element is provided between the lifting plate and the base plate. A limit ring is installed between the two lifting plates on the same side. An insertion hole is opened on the surface of the punch. Insert rods are provided inside the insertion hole and the two limit rings. Blocking components that block the limit rings are provided at both ends of the insert rods.
[0007] Preferably, the width of the limiting plate matches the width of the slot.
[0008] Preferably, the limiting component includes an L-shaped baffle that slides through the insert plate, with the bottom surface of the L-shaped baffle abutting the top surface of the insert plate, and a first spring fixedly installed between the L-shaped baffle and the limiting plate.
[0009] Preferably, the elastic element is a second spring, with the upper end of the second spring installed on the bottom surface of the lifting plate and the lower end of the second spring installed on the top surface of the base plate, and the second spring is arranged around the outside of the telescopic rod.
[0010] Preferably, the blocking assembly includes a baffle and a bolt, the baffle being fixedly installed at one end of the insertion rod, and the bolt being threadedly connected to one end of the insertion rod.
[0011] Preferably, the shape and size of the punch and the punch hole are appropriately matched.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. When disassembling this rotor lamination die, first pull the L-shaped baffle so that it does not block the top surface of the insert plate. Then move the insert plate upward so that the limiting plate disengages from the slot, thereby separating the insert plate, punch, and limiting plate. Then unscrew the bolts and pull the baffle so that the insert rod is pulled out from the limiting ring and the insertion hole. At this time, the punch can be taken out from the punch hole, completing the disassembly of the punch. The disassembly is relatively convenient and the punch can be replaced easily.
[0014] 2. During the installation of this rotor lamination die, the replaced punch is inserted into the punch hole, ensuring the limiting ring and the insertion hole are horizontally aligned. Then, the insertion rod is passed through the insertion hole and the two limiting rings. Next, the bolt is screwed into the screw hole on one side of the insertion rod. The baffle and bolt respectively block both sides of the two limiting rings, completing the installation of the punch and the base plate. Afterwards, the L-shaped baffle is pulled, placing the insertion plate inside the limiting plate, allowing the limiting plate to enter the two slots. After releasing the L-shaped baffle, the first spring pulls the L-shaped baffle against the top surface of the insertion plate, thus fixing the insertion plate and the limiting plate together. This quickly completes the punch installation, reducing the time required for punch maintenance. 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 cross-sectional structural diagram of the present invention;
[0017] Figure 3 This is a cross-sectional view of the limiting plate structure of this utility model;
[0018] Figure 4 This is an enlarged structural schematic diagram of the present invention.
[0019] In the diagram: 1. Mounting plate; 2. Limiting plate; 3. Insert plate; 4. Slot; 5. L-shaped baffle; 6. First spring; 7. Punch; 8. Base plate; 9. Telescopic rod; 10. Lifting plate; 11. Second spring; 12. Limiting ring; 13. Insertion hole; 14. Insertion rod; 15. Baffle; 16. Bolt; 17. Punch hole. Detailed Implementation
[0020] 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.
[0021] Example 1
[0022] Please refer to Figure 1-4 As shown, this utility model provides a rotor lamination mold, including a mounting plate 1 and a base plate 8. Multiple limiting plates 2 are mounted on the bottom surface of the mounting plate 1. An insert plate 3 is provided inside the limiting plate 2. Multiple limiting plates 2 are opened on the bottom surface of the insert plate 3. The limiting plates 2 pass through the slot 4. A limiting component is provided on one side of the limiting plate 2.
[0023] A punch 7 is installed at the bottom of the insert plate 3. A punch hole 17 is opened on the surface of the base plate 8. The punch 7 passes through the punch hole 17. A telescopic rod 9 is installed on the top surface of the base plate 8. A lifting plate 10 is installed at one end of the inner rod of the telescopic rod 9. An elastic element is provided between the lifting plate 10 and the base plate 8. A limit ring 12 is installed between the two lifting plates 10 on the same side. An insertion hole 13 is opened on the surface of the punch 7. An insertion rod 14 is provided inside the insertion hole 13 and the two limit rings 12. A blocking component is provided at both ends of the insertion rod 14 to block the limit ring 12.
[0024] Specifically, the movable limiting component facilitates the installation and removal of the insert plate 3, and changes the position of the insert rod 14 to facilitate the installation and removal of the punch 7, thereby facilitating mold maintenance.
[0025] Wherein: the width of the limiting plate 2 matches the width of the slot 4, the limiting component includes an L-shaped baffle 5, the L-shaped baffle 5 slides through the insert plate 3, the bottom surface of the L-shaped baffle 5 abuts against the top surface of the insert plate 3, a first spring 6 is fixedly installed between the L-shaped baffle 5 and the limiting plate 2, pulling the L-shaped baffle 5 to move and change the position of the L-shaped baffle 5, so as to facilitate the control of whether the L-shaped baffle 5 blocks or does not block the insert plate 3, thereby facilitating the removal and installation of the insert plate 3.
[0026] Specifically, the elastic element is the second spring 11. The upper end of the second spring 11 is installed on the bottom surface of the lifting plate 10, and the lower end of the second spring 11 is installed on the top surface of the base plate 8. The second spring 11 is arranged around the outside of the telescopic rod 9. The blocking assembly includes a baffle 15 and a bolt 16. The baffle 15 is fixedly installed on one end of the insertion rod 14, and the bolt 16 is threadedly connected to one end of the insertion rod 14. The baffle 15 and the bolt 16 are located at both ends of the insertion rod 14, and the baffle 15 and the bolt 16 can block the side of the limiting ring 12, thereby fixing the position between the insertion rod 14 and the punch 7.
[0027] Wherein: the shape and size of the punch 7 and the punch hole 17 are appropriately matched so that the punch 7 can just pass through the punch hole 17.
[0028] Working principle: This utility model is a rotor lamination mold. When disassembling, first pull the L-shaped baffle 5 so that the L-shaped baffle 5 does not block the top surface of the insert plate 3. Then move the insert plate 3 upward so that the limiting plate 2 disengages from the slot 4, thereby separating the insert plate 3, punch 7 and limiting plate 2. Then unscrew the bolt 16 and pull the baffle 15 so that the insert rod 14 is pulled out from the limiting ring 12 and the insert hole 13. At this time, the punch 7 can be taken out from the punch hole 17, completing the disassembly of the punch 7. The disassembly is relatively convenient and the punch 7 is easy to replace.
[0029] During installation, the replaced punch 7 is inserted into the punch hole 17, ensuring that the limiting ring 12 and the insertion hole 13 are horizontally aligned. Then, the insertion rod 14 is passed through the insertion hole 13 and the two limiting rings 12. Subsequently, the bolt 16 is screwed into the screw hole on one side of the insertion rod 14. The baffle 15 and the bolt 16 respectively block the two sides of the two limiting rings 12, completing the installation of the punch 7 and the base plate 8. Then, the L-shaped baffle 5 is pulled to place the insertion plate 3 inside the limiting plate 2, so that the limiting plate 2 enters the two slots 4. After releasing the L-shaped baffle 5, under the pulling action of the first spring 6, the L-shaped baffle 5 blocks the top surface of the insertion plate 3, thereby fixing the insertion plate 3 and the limiting plate 2, thus quickly completing the installation of the punch 7 and reducing the time required for maintaining the punch 7.
[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A rotor lamination die, comprising a mounting plate (1) and a base plate (8), characterized in that: The mounting plate (1) has multiple limiting plates (2) installed on its bottom surface. The limiting plates (2) have insert plates (3) on their inner sides. The insert plates (3) have multiple limiting plates (2) on their bottom surface. The limiting plates (2) pass through the slots (4). The limiting plates (2) have limiting components on one side. A punch (7) is installed at the bottom of the insert plate (3). A punch hole (17) is opened on the surface of the base plate (8). The punch (7) passes through the punch hole (17). A telescopic rod (9) is installed on the top surface of the base plate (8). A lifting plate (10) is installed at one end of the inner rod of the telescopic rod (9). An elastic element is provided between the lifting plate (10) and the base plate (8). A limit ring (12) is installed between the two lifting plates (10) on the same side. A hole (13) is opened on the surface of the punch (7). A rod (14) is provided inside the hole (13) and the two limit rings (12). A blocking component is provided at both ends of the rod (14) to block the limit ring (12).
2. The rotor lamination die according to claim 1, characterized in that: The width of the limiting plate (2) matches the width of the slot (4).
3. A rotor lamination die according to claim 1, characterized in that: The limiting component includes an L-shaped baffle (5), which slides through the insert plate (3). The bottom surface of the L-shaped baffle (5) abuts against the top surface of the insert plate (3). A first spring (6) is fixedly installed between the L-shaped baffle (5) and the limiting plate (2).
4. A rotor lamination die according to claim 1, characterized in that: The elastic element is specifically a second spring (11). The upper end of the second spring (11) is installed on the bottom surface of the lifting plate (10), and the lower end of the second spring (11) is installed on the top surface of the base plate (8). The second spring (11) is arranged around the outside of the telescopic rod (9).
5. A rotor lamination die according to claim 1, characterized in that: The blocking assembly includes a baffle (15) and a bolt (16). The baffle (15) is fixedly installed at one end of the insert rod (14), and the bolt (16) is threadedly connected to one end of the insert rod (14).
6. A rotor lamination die according to claim 1, characterized in that: The shape and size of the punch (7) and the punch hole (17) are appropriately matched.