Efficient forming die for claw pole of automobile motor
By using a servo motor-driven clamping system and pressure sensor monitoring, the problem of centered clamping of silicon steel sheets in the forming mold was solved, achieving efficient and precise forming of automotive motor claw poles.
Patent Information
- Application Number
- CN202520449725.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-14
AI Technical Summary
Existing automotive motor claw electrode forming molds lack an effective silicon steel sheet centering clamping structure, resulting in low forming accuracy and efficiency, and requiring frequent manual adjustments.
The clamping system, driven by a servo motor, uses a rack and toothed disc to slide the support plate, thereby achieving automatic centering and clamping of the silicon steel sheet. A pressure sensor monitors the clamping force to ensure suitable forming conditions.
This improves the forming efficiency and precision of automotive motor claw poles, reduces the need for manual adjustments, and ensures product quality.
Smart Images

Figure CN223862667U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts mold technology, specifically to an ultra-high efficiency forming mold for automotive motor claws. Background Technology
[0002] In the production process of automotive motor claw poles, forming molds are required. These molds are mainly used to process metal materials into the shapes needed for automotive motor claw poles. Automotive motor claw poles are generally made of silicon steel sheets. Silicon steel sheets have good magnetic permeability, which can effectively improve the magnetic efficiency of the motor and reduce hysteresis losses. They are relatively hard and have a certain degree of ductility, making them suitable for changing shape through pressure processing. During pressing, pressure is applied to the silicon steel sheets, causing them to undergo plastic deformation and bond tightly together.
[0003] In the use of existing automotive motor claw electrode forming molds, the silicon steel sheets are mostly placed manually, lacking a structure for centering and clamping the silicon steel sheets. This causes deviations in the position of the silicon steel sheets after placement. In order to ensure forming accuracy, the position of the silicon steel sheets needs to be constantly adjusted manually, which reduces the forming efficiency of automotive motor claw electrodes. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides an extremely efficient forming mold for automotive motor claws.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: an ultra-high efficiency forming mold for automotive motor claws, comprising a processing table, a bottom mold at the upper end of the processing table, a lifting cylinder above the bottom mold, a top mold cooperating with the bottom mold at the output end of the lifting cylinder, two symmetrically arranged slots at the bottom of the bottom mold, a support plate slidably arranged inside the slots, a rack on the inner side of the support plate, and a gear plate rotatably arranged between the two slots, the gear plate meshing with the rack, a motor fixedly arranged on one side of the bottom mold, a drive shaft connected to the gear plate at the output end of the motor, a clamping rod at the top of the support plate, and two clamping blocks symmetrically arranged at both ends of the clamping rod.
[0008] Furthermore, an improvement of this utility model is that the rack is located in the middle part of the support plate.
[0009] Furthermore, an improvement of this utility model is that the plurality of clamping blocks are of the same size, and the clamping blocks are cylindrical structures.
[0010] Furthermore, an improvement of this utility model is that the motor is a servo motor.
[0011] To prevent damage to the silicon steel sheet, the present invention includes the following improvements: a top seat is fixedly installed on the top of the support plate; the top seat has a cavity inside; a pressure sensor is installed inside the cavity; the pressure sensor is connected to the motor via an electrical signal; a positioning block is provided in the middle part of the clamping rod, which is inserted into the cavity and contacts the detection end of the pressure sensor; a rear cover is provided at the rear end of the cavity, which is fixed to the rear end of the top seat by screws; and an adapter block is provided at the detection end of the pressure sensor, which is connected to the positioning block.
[0012] (III) Beneficial Effects
[0013] Compared with the prior art, this utility model provides an extremely efficient forming mold for automotive motor claws, which has the following beneficial effects:
[0014] The motor is started, causing the two support plates to slide relative to each other in the slot, which in turn drives the clamping rods and clamping blocks on both sides of the bottom mold to move in opposite directions. This allows the circular blank to be clamped and fixed in the center on the bottom mold from the circumference of the blank. During the workpiece forming process, the clamping blocks can stably clamp the blank and prevent it from shifting under pressure. This process does not require manual adjustment of the blank position, thus improving the forming efficiency of the automotive motor claw pole.
[0015] When the pressure at the clamping block reaches the rated value, the pressure sensor transmits the signal to the control module on the motor. At this time, the control module can immediately lock the motor and adjust the clamping force through the servo motor to ensure that the blank is formed under the appropriate clamping force to ensure product quality. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This utility model Figure 1 The main view;
[0018] Figure 3 This is an enlarged structural diagram of the hollow groove in this utility model;
[0019] Figure 4 This is a schematic diagram of the mating structure of the gear disc and the rack in this utility model;
[0020] Figure 5 This is a schematic diagram of the installation structure of the pressure sensor in this utility model;
[0021] In the diagram: 1. Machining table; 2. Bottom mold; 3. Lifting cylinder; 4. Top mold; 5. Hollow slot; 6. Support plate; 7. Rack; 8. Top seat; 9. Clamping rod; 10. Clamping block; 11. Positioning block; 12. Back cover; 13. Cavity; 14. Pressure sensor; 15. Motor; 16. Gear disc. 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] Please see Figure 1-5 The present invention relates to an extremely efficient forming mold for an automotive motor claw, comprising a processing table 1, a bottom mold 2 at the upper end of the processing table 1, a lifting cylinder 3 above the bottom mold 2, a top mold 4 at the output end of the lifting cylinder 3 that cooperates with the bottom mold 2, two symmetrically arranged slots 5 at the bottom of the bottom mold 2, a support plate 6 slidably arranged inside the slots 5, a rack 7 on the inner side of the support plate 6, and a gear plate 16 rotatably arranged between the two slots 5, the gear plate 16 meshing with the rack 7, a motor 15 fixedly arranged on one side of the bottom mold 2, a drive shaft connected to the gear plate 16 at the output end of the motor 15, a clamping rod 9 at the top end of the support plate 6, and two clamping blocks 10 symmetrically arranged at both ends of the clamping rod 9.
[0024] In this embodiment, the rack 7 is located in the middle part of the support plate 6.
[0025] In this embodiment, the multiple clamping blocks 10 are of the same size, and the clamping blocks 10 are cylindrical structures.
[0026] In this embodiment, the motor 15 is a servo motor.
[0027] Place the processing table 1 in a suitable working position, ensuring that the table surface is level and stable;
[0028] Install the bottom mold 2 on the upper end of the processing table 1, ensuring that the bottom mold 2 is installed firmly;
[0029] A lifting cylinder 3 is installed above the bottom mold 2, and the output end of the lifting cylinder 3 is connected to the top mold 4 to ensure that the top mold 4 and the bottom mold 2 can be accurately matched.
[0030] Install support plates 6 in the two empty slots 5 at the bottom of the bottom mold 2 respectively, ensuring that the support plates 6 can slide smoothly in the empty slots 5. Since the rack 7 is located in the middle part of the support plate 6, pay attention to the accurate position of the rack 7 during installation.
[0031] A toothed disc 16 is installed between the two empty slots 5, so that the toothed disc 16 meshes with the racks 7 on the two side support plates 6;
[0032] A motor 15 is installed on one side of the bottom mold 2. In this embodiment, the motor 15 is a servo motor, and the output end of the motor 15 is connected to the gear plate 16 through the drive shaft.
[0033] A clamping rod 9 is installed at the top of the support plate 6, and cylindrical clamping blocks 10 of the same size are symmetrically installed at both ends of the clamping rod 9.
[0034] In the automotive motor 15 claw pole forming operation, the automotive motor 15 claw pole blank to be processed is placed on the bottom mold 2. The motor 15 is started, and the drive shaft at the output end of the motor 15 drives the gear plate 16 to rotate. Since the gear plate 16 meshes with the rack 7 on the support plate 6, the two support plates 6 slide relative to each other in the slot 5, which in turn drives the clamping rods 9 and clamping blocks 10 on both sides of the bottom mold 2 to move in opposite directions. This allows the circular blank to be clamped and fixed in the center on the bottom mold 2 from the circumference of the circular blank. During the workpiece forming process, the clamping blocks 10 can stably clamp the blank and prevent it from shifting under pressure. This process does not require manual adjustment of the blank position, thus improving the forming efficiency of the automotive motor 15 claw pole.
[0035] In this embodiment, a top seat 8 is fixedly installed on the top of the support plate 6. The top seat 8 has a cavity 13 inside. A pressure sensor 14 is installed inside the cavity 13. The pressure sensor 14 is connected to the motor 15 via an electrical signal. The middle part of the clamping rod 9 has a positioning block 11 that is inserted into the cavity 13 and contacts the detection end of the pressure sensor 14. The rear end of the cavity 13 has a rear cover 12, which is fixed to the rear end of the top seat 8 by screws. The detection end of the pressure sensor 14 has an adapter block, which is connected to the positioning block 11.
[0036] A top seat 8 is installed on top of the support plate 6, and a cavity 13 is provided inside the top seat 8. A pressure sensor 14 is placed inside the cavity 13. A positioning block 11 is provided in the middle part of the clamping rod 9, allowing the positioning block 11 to be inserted into the cavity 13 of the top seat 8 and contact the detection end of the pressure sensor 14. A rear cover 12 is fixed to the rear end of the top seat 8 with screws, completing the installation of the pressure detection structure. An adapter block is installed at the detection end of the pressure sensor 14, ensuring a good connection between the adapter block and the positioning block 11.
[0037] The pressure sensor 14 monitors the pressure information transmitted at the positioning block 11 in real time, which is the pressure value at the clamping block 10. When the pressure at the clamping block 10 reaches the rated value, the pressure sensor 14 transmits the signal to the control module on the motor 15. At this time, the control module can lock the motor 15 immediately and adjust the clamping force through the servo motor to ensure that the blank is formed under the appropriate clamping force to ensure product quality.
[0038] After molding is completed, the lifting cylinder 3 drives the top mold 4 to rise, the servo motor reverses, causing the support plate 6 to move in the opposite direction, the clamping block 10 releases the blank, and then the molded workpiece can be taken out from the mold groove.
[0039] In the description herein, it should be noted that relational terms such as "first" and "second" are used merely 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 process, method, article, or apparatus.
[0040] 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.
Claims
1. A high-efficiency forming mold for automotive motor claws, comprising a processing table (1), wherein a bottom mold (2) is provided at the upper end of the processing table (1), a lifting cylinder (3) is provided above the bottom mold (2), and a top mold (4) that cooperates with the bottom mold (2) is provided at the output end of the lifting cylinder (3), characterized in that: The bottom mold (2) has two symmetrically arranged slots (5) at the bottom. A support plate (6) is slidably arranged inside the slot (5). A rack (7) is provided on the inner side of the support plate (6). A gear plate (16) is rotatably arranged between the two slots (5). The gear plate (16) meshes with the rack (7). A motor (15) is fixedly arranged on one side of the bottom mold (2). The output end of the motor (15) is provided with a drive shaft connected to the gear plate (16). A clamping rod (9) is provided at the top of the support plate (6). Two clamping blocks (10) are symmetrically arranged at both ends of the clamping rod (9).
2. The high-efficiency forming mold for automotive motor claws according to claim 1, characterized in that: The rack (7) is located in the middle part of the support plate (6).
3. The high-efficiency forming mold for automotive motor claws according to claim 2, characterized in that: The multiple clamping blocks (10) are of the same size, and the clamping blocks (10) are cylindrical.
4. The high-efficiency forming mold for automotive motor claws according to claim 3, characterized in that: The motor (15) is a servo motor.
5. The high-efficiency forming mold for automotive motor claws according to claim 4, characterized in that: A top seat (8) is fixedly installed on the top of the support plate (6). The top seat (8) has a cavity (13) inside. A pressure sensor (14) is installed inside the cavity (13). The pressure sensor (14) is connected to the motor (15) via an electrical signal. The middle part of the clamping rod (9) is provided with a positioning block (11) that is inserted into the cavity (13) and contacts the detection end of the pressure sensor (14). A rear cover (12) is provided at the rear end of the cavity (13). The rear cover (12) is fixed to the rear end of the top seat (8) by screws.
6. The high-efficiency forming mold for automotive motor claws according to claim 5, characterized in that: The pressure sensor (14) has an adapter block at its detection end, and the adapter block is connected to the positioning block (11).