A rotor core clamping device

Abstract

This utility model relates to the field of motor manufacturing and discloses a rotor core clamping device, including a support base. Two limiting plate bases are fixedly arranged inside the first and second circular frames. Two structural chambers are fixedly arranged inside the first and second circular frames. A first driving rod is slidably engaged on each of the two first connecting sliders, and a second driving rod is slidably engaged on each of the two second connecting sliders. Both second driving rods are provided with racks. A rotating motor is fixedly arranged on the outside of each of the two structural chambers. In this utility model, the rotor core clamping device integrates precise clamping and multi-scenario adaptability design, solving the problems of large manual alignment deviation and process fragmentation in traditional devices, ensuring safety and product consistency. At the same time, the stable support structure is adaptable to multiple environments and can be compatible with multiple specifications of iron cores. It is suitable for batch, small batch and emergency scenarios, achieving stable clamping in all scenarios and improving processing response efficiency and assembly accuracy.

Description

Technical Field

[0001] This utility model relates to the field of motor manufacturing, and in particular to a rotor core clamping device. Background Technology

[0002] The rotor core clamping device is a core supporting equipment in motor manufacturing. Its clamping accuracy, operation continuity and adaptability directly affect the structural stability of the rotor core and the final operating efficiency and life of the motor.

[0003] Traditional rotor core clamping devices have significant drawbacks. The processes are fragmented, with the alignment, pre-tightening, and pressure forming of the loose core laminations occurring independently. These require manual, step-by-step operation and secondary clamping, which is not only cumbersome and inefficient but also prone to alignment deviations due to human intervention, leading to insufficient concentricity during subsequent assembly. The clamping mechanisms are mostly single-sided driven, resulting in uneven clamping force distribution, often causing localized core deformation and excessive gaps between laminations, affecting the permeability and stability of the motor. The positioning components lack flexible adjustment capabilities, requiring frequent disassembly and replacement of limit components for different rotor core specifications, resulting in poor adaptability. Furthermore, most devices can only be used in fixed workshop environments, failing to meet the needs of small-batch laboratory research and development, outdoor emergency repairs, and other scenarios. These problems restrict their adaptation to the high-efficiency, high-precision production requirements of modern motor manufacturing, indirectly impacting the production progress and product quality of downstream industries such as new energy vehicles and industrial equipment.

[0004] Therefore, those skilled in the art have provided a rotor core clamping device to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a rotor core clamping device. This device integrates precise clamping with a multi-scenario adaptability design, effectively solving the problems of large alignment deviations and fragmented processes in traditional devices. The device achieves continuous operation of the entire rotor core process, from pre-alignment and pre-tightening of loose pieces to pressurization, through synchronous linkage of the limiting plate and telescopic rod, and the meshing transmission of the rack and drive gear of the first and second drive rods. This eliminates the need for manual step-by-step alignment and secondary clamping in traditional devices, solving the problems of cumbersome operation and low efficiency, reducing human error, and ensuring stability in multi-scenario operation. The limiting plate and telescopic rod precisely constrain the radial position of the loose core pieces, avoiding deviations caused by manual stacking; the synchronous transmission of the drive gear and rack ensures even force application on both sides of the clamping plates, preventing uneven force distribution. To address issues such as core deformation and excessive gaps, a control module that works in conjunction with the rotating motor to regulate clamping force prevents over-clamping from damaging the structure, significantly improving processing safety and the consistency of the finished core structure. The support base, combined with the first and second circular frames, provides stable support, adapting to environments such as workshop production, laboratory research and development, and outdoor emergency processing. The adjustable telescopic rod and the adaptable design of the pressure plate are compatible with various core specifications, making it suitable for batch assembly, small-batch processing, and emergency repair scenarios. Ultimately, it achieves safe and stable clamping of the rotor core in all scenarios, improving processing response efficiency and finished product assembly accuracy.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A rotor core clamping device includes a support base, a first circular frame fixedly mounted on one side of the support base, a second circular frame fixedly mounted on the side away from the support base, two limiting plate bases fixedly mounted inside the first and second circular frames, two structural compartments fixedly mounted inside the first and second circular frames, the two structural compartments being symmetrically arranged, each structural compartment having an inner cavity, a first connecting slider fixedly mounted on one side of each structural compartment inner cavity, a first driving rod slidably engaged on each of the two first connecting sliders, each of the two first driving rods having a rack, a second connecting slider fixedly mounted on the side away from the inner cavity of each of the two structural compartments, a second driving rod slidably engaged on each of the two second connecting sliders, each of the two second driving rods having a rack, a rotating motor fixedly mounted on the outer side of each of the two structural compartments, a first base fixedly connected to the end of each of the two first driving rods, and a second base fixedly connected to the end of each of the two second driving rods; Through the above technical solution, the support base, the first circular frame, and the second circular frame constitute a stable support structure, providing an installation benchmark and force carrier for each component. The symmetrically arranged structural chambers form a dual-drive unit layout. The first and second connecting sliders inside the chambers provide precise guiding constraints for the first and second drive rods, ensuring stable sliding of the drive rods along the inner cavity of the structural chamber. A rotating motor provides power output, and through the meshing of the drive gears with the racks on the surfaces of the first and second drive rods, the synchronous reverse movement of the two drive rods is achieved. This, in turn, drives the first and second bases to work together to complete the clamping and releasing operation of the rotor core. This symmetrical dual-drive structure ensures balanced clamping force on both sides, avoiding core offset or deformation caused by traditional single-sided drive. The sliding cooperation between the connecting sliders and the drive rods improves transmission accuracy and reduces positional deviation during clamping, providing a reliable guarantee for the precise assembly of the rotor core. It is suitable for machining scenarios in motor manufacturing where the integrity and perpendicularity of the core are highly required.

[0007] Furthermore, the two limiting plate bases are symmetrically arranged, and each of the two limiting plate bases is fixedly connected with a telescopic rod, and each of the ends of the two telescopic rods is fixedly provided with a limiting plate; Through the above technical solution, the symmetrically arranged limiting plate base provides stable installation support for the telescopic rod, ensuring that the telescopic rod is subjected to balanced forces and moves in the same direction. The telescopic rod can flexibly extend and retract according to the specifications of the rotor core fragments, causing the limiting plate at the end to move synchronously towards or away from the center of the device. When the core is clamped, the limiting plate can accurately contact and constrain the radial position of the rotor core fragments from both sides, forcibly eliminating gaps and offsets that may occur during manual stacking, and laying a precise benchmark for the subsequent drive rod to drive the clamping plate to clamp.

[0008] Furthermore, both the first base and the second base are fixedly provided with connecting rods, and each end of the two connecting rods is fixedly provided with a clamping plate; Through the above technical solution, the first base and the second base serve as intermediate carriers for the power transmission of the drive rod. The linear motion of the drive rod is converted into the clamping action of the pressure plate through the fixed connecting rod, forming a complete power transmission chain. This ensures that the power transmission is lossless and directionally accurate. The rigid structure of the connecting rod can prevent bending deformation during the clamping process, ensuring that the pressure plate always maintains a stable posture. The pressure plate at the end directly contacts the scattered blades of the rotor core. Its flat contact surface can increase the contact area with the core, evenly distributing the clamping force to the surface of the core, preventing excessive local stress from causing core deformation or inter-blade damage.

[0009] Furthermore, a drive gear is provided between the two first drive rods and the second drive rod via a rack; Through the above technical solution, the drive gear, as the core transmission medium, forms a symmetrical meshing structure with the racks on the surfaces of the first and second drive rods, constructing a synchronous transmission system with a single gear and dual drive. When the rotating motor drives the drive gear to rotate, the gear teeth can simultaneously generate opposite forces on the racks on both sides, driving the first and second drive rods to slide synchronously in opposite directions along the inner cavity of the structural chamber. This avoids the unilateral force offset that occurs in traditional single-drive rod operations and ensures that the stroke and speed of the two drive rods are completely consistent.

[0010] Furthermore, telescopic rods are fixedly installed on the inner sides of both structural compartments, and limiting plates are fixedly installed at the ends of both telescopic rods; The above technical solution forms a double limiting structure by setting a limiting plate on the structural chamber and a limiting plate on the limiting base. This not only enhances the positioning accuracy before the iron core is clamped, but also provides a more stable reference for the subsequent drive rod to drive the clamping plate to clamp. This effectively reduces the displacement deviation of the iron core during the clamping process and ensures the structural consistency and assembly accuracy of the rotor iron core product.

[0011] Furthermore, both of the first drive rods are provided with sliding cavities, and both of the second drive rods are provided with sliding cavities; Through the above technical solution, the sliding cavities opened on the first and second drive rods can form a precise sliding fit with the first and second connecting sliders inside the structural compartment, constructing a guiding constraint system for the sliders and sliding cavities. The groove-shaped structure of the sliding cavity can form a wrapping limit for the connecting sliders, ensuring that the drive rod slides stably along the structural compartment cavity, while also restricting the drive rod from radial offset or rotation during movement, thus avoiding problems such as transmission jamming and clamping position deviation caused by the unconstrained sliding of traditional drive rods.

[0012] Furthermore, the output ends of both of the rotating motors are fixedly connected to drive gears; Through the above technical solution, the output end of the rotating motor is directly and fixedly connected to the drive gear, thus constructing an integrated power transmission structure of motor and gear. This eliminates the need for intermediate components such as couplings or belts in traditional transmissions, reducing losses and lag in the power transmission process and ensuring that the torque of the rotating motor can be transmitted to the drive gear efficiently and accurately.

[0013] This utility model has the following beneficial effects: This utility model proposes a rotor core clamping device that integrates precise clamping with a multi-scenario adaptability design. It solves the problems of large alignment deviations and process fragmentation caused by traditional devices. Through the linkage of the limiting plate and the telescopic rod, combined with the drive rod, rack and pinion, and drive gear transmission, it realizes the continuous operation of the entire process of core from pre-alignment, pre-tightening to pressure forming. It eliminates the need for manual step-by-step operation and secondary clamping, reducing errors and improving efficiency. The device can accurately constrain the position of the core and apply clamping force evenly to avoid deformation and excessive gaps. The supporting module adjusts the force to prevent structural damage, ensuring safety and product consistency. At the same time, the stable support structure is adaptable to multiple environments and can be compatible with multiple specifications of cores. It is suitable for batch, small batch and emergency scenarios, achieving stable clamping in all scenarios and improving processing response efficiency and assembly accuracy. Attached Figure Description

[0014] Figure 1 This is an isometric view of a rotor core clamping device proposed in this utility model; Figure 2 This is a side view of a rotor core clamping device proposed in this utility model; Figure 3 This is a top view of a rotor core clamping device proposed in this utility model; Figure 4 This is a schematic diagram of the clamping device of the rotor core clamping device proposed in this utility model; Figure 5 This is a schematic diagram of the clamping structure of a rotor core clamping device proposed in this utility model.

[0015] Explanation of reference numerals in the attached figures: 1. Support base; 2. Rotating motor; 3. Structural compartment; 4. Pressing plate; 5. Second base; 6. Connecting rod; 7. Second circular frame; 8. Limiting plate; 9. Telescopic rod; 10. Limiting plate base; 11. First circular frame; 12. First base; 13. First drive rod; 14. Rack; 15. Structural compartment inner cavity; 16. Second connecting slider; 17. Drive gear; 18. First connecting slider; 19. Second drive rod; 20. Sliding cavity. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Reference Figure 1 , Figure 2 , Figure 5 This utility model provides a specific implementation method: A rotor core clamping device includes a support base 1. A first circular frame 11 is fixedly mounted on one side of the support base 1, and a second circular frame 7 is fixedly mounted on the side away from the support base 1. Two limiting plate bases 10 are fixedly mounted inside the first circular frame 11 and the second circular frame 7. Two structural chambers 3 are fixedly mounted inside the first circular frame 11 and the second circular frame 7. The two structural chambers 3 are symmetrically arranged, and each structural chamber 3 has a structural chamber cavity 15. A first connecting slider 18 is fixedly mounted on one side of each structural chamber cavity 15. A first driving rod 13 is slidably engaged on each of the two first connecting sliders 18. Each of the two first driving rods 13 has a rack 14. A second connecting plate base 10 is fixedly mounted on the side away from the two structural chamber cavities 15. The slider 16 has two second connecting sliders 16, each with a second drive rod 19 slidably engaged. Each second drive rod 19 has a rack 14. Rotary motors 2 are fixedly mounted on the outer sides of both structural chambers 3. The ends of the two first drive rods 13 are fixedly connected to the first base 12, and the ends of the two second drive rods 19 are fixedly connected to the second base 5. The support base 1, the first circular frame 11, and the second circular frame 7 form a stable support structure, providing an installation reference and force carrier for each component. The symmetrically arranged structural chambers 3 form a dual-drive unit layout. The first connecting slider 18 and the second connecting slider 16 inside provide precise guiding constraints for the first drive rod 13 and the second drive rod 19, respectively, ensuring stable sliding of the drive rods along the inner cavity 15 of the structural chamber. The rotary motor 2 provides power output, which meshes with the racks 14 on the surfaces of the first drive rod 13 and the second drive rod 19 via the drive gear 17, achieving synchronous reverse movement of the two drive rods. This, in turn, drives the first base 12 and the second base 5 to work together to complete the clamping and releasing operation of the rotor core. This symmetrical dual-drive structure ensures balanced clamping force on both sides, avoiding core offset or deformation caused by traditional single-side drive. The sliding cooperation between the connecting slider and the drive rod improves transmission accuracy and reduces positional deviation during clamping, providing a reliable guarantee for the precise assembly of the rotor core. It is suitable for processing scenarios in motor manufacturing where the integrity and perpendicularity of the core are highly required.

[0018] Reference Figure 2 , Figure 4 , Figure 5 This utility model provides another specific embodiment: Two limiting plate bases 10 are symmetrically arranged, and each limiting plate base 10 is fixedly connected to a telescopic rod 9. Each telescopic rod 9 has a limiting plate 8 fixedly installed at its end. The symmetrically arranged limiting plate bases 10 provide stable installation support for the telescopic rods 9, ensuring that the telescopic rods 9 are subjected to balanced forces and move in the same direction. The telescopic rods 9 can flexibly extend and retract according to the specifications of the rotor core fragments, causing the limiting plates 8 at their ends to move synchronously towards or away from the center of the device. When performing core clamping operations, the limiting plates 8 can accurately contact and constrain the radial position of the rotor core fragments from both sides, forcibly eliminating gaps and offsets that may occur during manual stacking, laying a precise benchmark for the subsequent drive rod to drive the clamping plate 4 for clamping. The first base 12 and the second base 5 are both fixedly equipped with connecting rods 6, and each connecting rod 6 has a clamping plate 4 fixedly installed at its end. The first base 12 and the second base 5 serve as intermediate carriers for the power transmission of the drive rod. Through the fixed connecting rods 6, the linear motion of the drive rod is converted into the clamping action of the clamping plate 4, forming a complete power transmission chain, ensuring lossless and precise power transmission. The rigid structure of 6 can prevent bending deformation during clamping, ensuring that the clamping plate 4 always maintains a stable posture. The clamping plate 4 at the end directly contacts the scattered pieces of the rotor core. Its flat contact surface can increase the contact area with the core, and evenly distribute the clamping force to the surface of the core, preventing excessive local force from causing core deformation or damage between pieces. The two first drive rods 13 and the second drive rod 19 are both equipped with drive gears 17 that mesh with the rack 14. The drive gears 17 serve as the core transmission medium and form a symmetrical meshing structure with the racks 14 on the surfaces of the first drive rods 13 and the second drive rods 19, thus constructing a single-gear dual-drive synchronous transmission system.When the rotating motor 2 drives the drive gear 17 to rotate, the gear teeth can simultaneously generate reverse forces on the racks 14 on both sides, driving the first drive rod 13 and the second drive rod 19 to slide synchronously in opposite directions along the inner cavity 15 of the structural chamber. This avoids the unilateral force offset that occurs in traditional single drive rod operations and ensures that the stroke and speed of the two drive rods are completely consistent. Telescopic rods 9 are fixedly installed on the inner sides of both structural chambers 3, and limiting plates 8 are fixedly installed at the ends of both telescopic rods 9. The limiting plates 8 on the structural chambers 3 and the limiting plates 8 on the limiting base form a double limiting structure, which not only enhances the positioning accuracy before the iron core is clamped but also provides a more stable reference for the subsequent clamping of the clamping plate 4 by the drive rods, effectively reducing the displacement deviation of the iron core during clamping and ensuring the structural consistency and assembly accuracy of the finished rotor iron core. Both first drive rods 13 and both second drive rods 19 have sliding cavities 20. The sliding cavities 20 on the first drive rod 13 and the second drive rod 19 can form a precise sliding fit with the first connecting slider 18 and the second connecting slider 16 in the inner cavity 15 of the structural compartment, thus constructing a guiding constraint system for the slider and the sliding cavity 20. The groove-shaped structure of the sliding cavity 20 can form a wrapping limit for the connecting slider, ensuring that the drive rod slides stably along the inner cavity 15 of the structural compartment, and restricting the drive rod from radial offset or rotation during movement. This avoids problems such as transmission jamming and clamping position deviation caused by the unconstrained sliding of the traditional drive rod. The output ends of the two rotating motors 2 are fixedly connected to the drive gears 17. The output ends of the rotating motors 2 are directly fixedly connected to the drive gears 17, constructing an integrated power transmission structure of motor and gear. This eliminates the need for additional intermediate components such as couplings or belts in traditional transmission, reducing losses and lag in the power transmission process, and ensuring that the torque of the rotating motors 2 can be efficiently and accurately transmitted to the drive gears 17.

[0019] Working principle: After the operator places the loose rotor core pieces to be clamped on the surface of the clamping plate 4, the device is started through the matching control module. First, the telescopic rod 9 is activated. The telescopic rod 9, which is fixed by the limit plate base 10, extends synchronously, driving the limit plates 8 to move towards the center of the device. The four limit plates 8 contact the stacked loose pieces from different directions, forcibly constraining their radial position to eliminate stacking gaps and offsets, establishing a precise reference for subsequent clamping. Then, the rotary motor 2 is started. The output end of the rotary motor 2 drives the gear 17 to rotate. The drive gear 17 interacts with the first The rack 14 on the surfaces of drive rod 13 and second drive rod 19 engages, synchronously driving the first drive rod 13 and the second drive rod 19 to slide along the inner cavity 15 of the structural compartment 3. At this time, the first connecting slider 18 and the second connecting slider 16 respectively engage with the sliding cavities 20 on the first drive rod 13 and the second drive rod 19, constraining the two drive rods to only perform linear motion to avoid deflection. As the first drive rod 13 drives the first base 12 and the second drive rod 19 drives the second base 5 to move inward synchronously, the first base 12 and the second base 5 are connected by a... Rod 6 transmits power, causing the two clamping plates 4 to gradually approach the rotor core and apply initial clamping force to prevent loose pieces from scattering during subsequent alignment. After the device is aligned and the support base 1 contacts the ground and enters a stable working state, the output power of the rotating motor 2 is increased, and the drive gear 17 rotates further, pushing the first drive rod 13 and the second drive rod 19 to continue sliding inward. The clamping plates 4 apply a high-strength clamping force to the loose pieces of the rotor core, thoroughly compressing the gaps between the loose pieces and making them tightly bound together as a whole. After the clamping operation is completed, the rotating motor 2 reverses to drive the drive gear 1... 7. Reverse rotation drives the first drive rod 13 and the second drive rod 19 to slide outward through the rack 14. The first base 12 and the second base 5 move away from the rotor core synchronously with the drive rod. At the same time, the telescopic rod 9 retracts, causing the limiting plate 8 to retract outward to release the constraint. The operator can then remove the compressed rotor core. The synchronous transmission of the drive gear 17 and the rack 14, and the cooperation between the first connecting slider 18 and the second connecting slider 16 and the sliding cavity 20, respectively ensure that the clamping plate 4 is subjected to uniform force and the drive rod moves stably, ensuring the accuracy and safety of the clamping operation.

[0020] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0021] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A rotor core clamping device, comprising a support base (1), characterized in that: A first circular frame (11) is fixedly installed on one side of the support base (1), and a second circular frame (7) is fixedly installed on the side away from the support base (1). Two limiting plate bases (10) are fixedly installed inside the first circular frame (11) and the second circular frame (7). Two structural compartments (3) are fixedly installed inside the first circular frame (11) and the second circular frame (7). The two structural compartments (3) are symmetrically arranged. Each of the two structural compartments (3) has a structural compartment cavity (15). A first connecting slider (18) is fixedly installed on one side of each of the two structural compartment cavities (15). 18) Each of the two first drive rods (13) is slidably engaged with a first drive rod (13). Each of the two first drive rods (13) is provided with a rack (14). Each of the two structural chambers (15) is fixedly provided with a second connecting slider (16) on the side away from the two second connecting sliders (16). Each of the two second connecting sliders (16) is slidably engaged with a second drive rod (19). Each of the two second drive rods (19) is provided with a rack (14). Each of the two structural chambers (3) is fixedly provided with a rotating motor (2). Each of the two first drive rods (13) is fixedly connected to a first base (12) at the end. Each of the two second drive rods (19) is fixedly connected to a second base (5) at the end.

2. The rotor core clamping device according to claim 1, characterized in that: The two limiting plate bases (10) are symmetrically arranged, and each of the two limiting plate bases (10) is fixedly connected with a telescopic rod (9), and each of the two telescopic rods (9) is fixedly provided with a limiting plate (8) at its end.

3. The rotor core clamping device according to claim 1, characterized in that: The first base (12) and the second base (5) are both fixedly provided with connecting rods (6), and the ends of the two connecting rods (6) are fixedly provided with clamping plates (4).

4. The rotor core clamping device according to claim 1, characterized in that: A drive gear (17) is provided between the two first drive rods (13) and the second drive rod (19) through a rack (14).

5. The rotor core clamping device according to claim 1, characterized in that: Telescopic rods (9) are fixedly installed on the inner side of both structural compartments (3), and limiting plates (8) are fixedly installed at the ends of both telescopic rods (9).

6. A rotor core clamping device according to claim 1, characterized in that: Both of the first drive rods (13) have a sliding cavity (20), and both of the second drive rods (19) have a sliding cavity (20).

7. The rotor core clamping device according to claim 1, characterized in that: The output ends of both of the rotating motors (2) are fixedly connected to drive gears (17).

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