BMC plastic package motor nut stator anti-falling gripper
By designing a nut stator anti-detachment gripper and using a combination design of the clamping jaws and extrusion sleeves driven by the electric cylinder, the problem of the nut loosening caused by the vibration of the end effector is solved, and the precise clamping and positioning of the nut is achieved, which improves the safety and efficiency of the processing process.
Patent Information
- Application Number
- CN202422103387.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-29
AI Technical Summary
During the operation of the robot arm, frequent swing and vibration of the end effector causes the nut to loosen, affecting the clamping effect and bringing safety hazards.
A nut stator anti-detachment gripper is designed, and a first clamping mechanism and a second clamping mechanism are adopted. The first clamping jaw driven by the first electric cylinder and the second clamping jaw driven by the second electric cylinder are combined with the design of the extrusion sleeve and the spring to achieve accurate clamping and positioning of the nut.
It effectively prevents the nut from loosening and falling, improves the clamping accuracy and stability, and enhances the safety and efficiency of the processing process.
Smart Images

Figure CN223028947U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of BMC plastic encapsulated motor production, in particular to an anti - detachment gripper for the nut stator of a BMC plastic encapsulated motor. Background Technique
[0002] A BMC plastic encapsulated motor is a motor encapsulated with BMC material. The BMC material has excellent physical, electrical and mechanical properties. During the production of BMC plastic encapsulated motors, a robot end - effector is required to transfer nuts and stators for installation. A robot is an intelligent device that can operate semi - autonomously or fully autonomously and perform tasks such as operations or movements through programming and automatic control. The end - effector of the robot can efficiently transfer nuts and stators, thus facilitating the conveyance of these components to the discharge production line.
[0003] However, in the prior art, when the end - effector performs clamping and positioning, its stability and safety are crucial. However, due to the small size of the nut, it is easy to cause loosening and sliding during the clamping process. This situation not only affects the clamping effect but also causes the clamped object to fall, thus bringing safety hazards and potential losses. In addition, under the operation of the robotic arm, the end - effector will experience frequent swinging and vibration. This dynamic activity makes the originally insecure nut even more likely to loosen. Especially in the case of high - load or high - speed movement, the force applied to the nut will increase, further exacerbating the risk of its sliding and detachment. Summary of the Utility Model
[0004] The purpose of the utility model is to solve the problem in the prior art that under the operation of the robotic arm, the end - effector will experience frequent swinging and vibration, and this dynamic activity makes the originally insecure nut even more likely to loosen, and to propose an anti - detachment gripper for the nut stator of a BMC plastic encapsulated motor.
[0005] To achieve the above - mentioned purpose, the utility model adopts the following technical scheme: An anti - detachment gripper for a nut stator, comprising a main body. Heat dissipation holes are provided on the surface of the main body. A plurality of first clamping mechanisms are installed on the side wall of the main body, and a plurality of second clamping mechanisms are installed on one side of the main body;
[0006] The first clamping mechanism includes a first mounting bracket and a first electric cylinder. A fixed block is fixedly connected to the inner side of the first mounting bracket. Two first clamping jaws are symmetrically mounted on the other side of the first mounting bracket. The output end of the first electric cylinder is fixedly connected to the first clamping jaw. Anti-disengagement openings are provided on one end of each of the two first clamping jaws facing each other. One end of the fixed block is fixedly connected to a fixed rod. One end of the fixed rod is fixedly connected to a positioning rod. A limiting block is fixedly connected to the surface of one end of the fixed rod. A pressing sleeve is slidably connected to the surface of the fixed rod. A limiting hole is formed in the surface of the pressing sleeve. A spring is installed between the pressing sleeve and the fixed block. The spring is sleeved on the surface of the fixed rod.
[0007] Preferably, a nut is sleeved on one end of the positioning rod, and the nut is located between the two anti-disengagement openings.
[0008] Preferably, the limiting block is slidably connected to the limiting hole, and one end of the pressing sleeve abuts against the nut.
[0009] Preferably, the first electric cylinder is installed inside the first mounting bracket, and one end of the first electric cylinder is fixedly connected to the side wall of the main body.
[0010] Preferably, the second clamping mechanism includes a second mounting bracket, and three second clamping jaws are installed on the outer side of the second mounting bracket.
[0011] Preferably, a second electric cylinder is installed on one side of the second mounting bracket, and the output end of the second electric cylinder is fixedly connected to the second clamping jaw.
[0012] Preferably, anti-slip teeth are provided on the inner side of the second clamping jaw, and the second electric cylinder is fixedly connected to the side wall of the main body.
[0013] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:
[0014] 1. In the present utility model, through the coordinated operation of the first electric cylinder, the two first clamping jaws achieve precise clamping and positioning of the nut stator, ensuring its stability during the processing. The accurate insertion of the positioning rod and the synchronous clamping mechanism effectively prevent the displacement or loosening of the material and ensure the fixed position of the nut stator in space. The elasticity of the spring enables the pressing sleeve to slide smoothly on the surface of the fixed rod, uniformly applying pressure to the nut stator to ensure uniform stress and avoid any deviation. This close combination not only enhances the clamping accuracy but also provides a solid foundation for subsequent processing steps, improving the overall processing efficiency and safety.
[0015] 2. In the present utility model, during the process of the extrusion sleeve sliding along the fixed rod, the relative sliding between the positioning rod and the limiting block provides important guidance, ensuring that the movement trajectory of the extrusion sleeve is more stable and effectively avoiding the phenomenon of detachment from the fixed rod. This design significantly reduces potential failures caused by sliding and improves the reliability of the system. At the same time, the second clamping mechanism uses three second clamping jaws driven by a second electric cylinder to ensure the synchronism and stability of the clamping action. The design of the anti-slip teeth enhances the friction force of the clamping surface and significantly improves the firmness of the clamping, so that excellent performance can still be maintained under high-speed or heavy-load operating conditions, reducing the risk of object sliding and falling. Description of the Drawings
[0016] Figure 1 It is a schematic perspective view of the overall three-dimensional structure of an anti-detachment gripper for a BMC plastic-encapsulated motor nut stator proposed by the present utility model;
[0017] Figure 2 It is a schematic perspective view of the three-dimensional structure of the first clamping mechanism in an anti-detachment gripper for a BMC plastic-encapsulated motor nut stator proposed by the present utility model;
[0018] Figure 3 It is a disassembled schematic perspective view of the first clamping mechanism in an anti-detachment gripper for a BMC plastic-encapsulated motor nut stator proposed by the present utility model;
[0019] Figure 4 It is a schematic perspective view of the second clamping mechanism in an anti-detachment gripper for a BMC plastic-encapsulated motor nut stator proposed by the present utility model.
[0020] Legend Explanation: 1. Main body; 2. First clamping mechanism; 21. First mounting bracket; 22. First electric cylinder; 23. First clamping jaw; 24. Anti-release opening; 25. Extrusion sleeve; 251. Limiting hole; 26. Fixed rod; 261. Positioning rod; 27. Spring; 28. Fixed block; 29. Limiting block; 3. Second clamping mechanism; 31. Second mounting bracket; 32. Anti-slip teeth; 33. Second electric cylinder; 34. Second clamping jaw; 4. Heat dissipation hole. Detailed Embodiment
[0021] In order to more clearly understand the above-mentioned objects, features, and advantages of the present utility model, the following further describes the present utility model in conjunction with the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
[0022] In the following description, many specific details are set forth to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.
[0023] Embodiment 1: As Figure 1 - Figure 3 shown, the present utility model provides an anti - detachment gripper for a nut stator, including a main body 1. Heat dissipation holes 4 are provided on the surface of the main body 1. A plurality of first clamping mechanisms 2 are installed on the side wall of the main body 1, and a plurality of second clamping mechanisms 3 are installed on one side of the main body 1;
[0024] The first clamping mechanism 2 includes a first mounting frame 21 and a first electric cylinder 22. A fixed block 28 is fixedly connected to the inner side of the first mounting frame 21. Two first jaws 23 are symmetrically installed on the other side of the first mounting frame 21. The output end of the first electric cylinder 22 is fixedly connected to the first jaw 23. Anti - detachment openings 24 are provided on the opposite sides of one ends of the two first jaws 23. One end of the fixed block 28 is fixedly connected to a fixed rod 26. One end of the fixed rod 26 is fixedly connected to a positioning rod 261, and a limiting block 29 is fixedly connected to the surface of one end of the fixed rod 26. A pressing sleeve 25 is slidably connected to the surface of the fixed rod 26. A limiting hole 251 is provided on the surface of the pressing sleeve 25. A spring 27 is installed between the pressing sleeve 25 and the fixed block 28, and the spring 27 is sleeved on the surface of the fixed rod 26.
[0025] Specifically, the specific settings and functions of this embodiment are as follows. During the operation of the first electric cylinder 22, the actions of the two first jaws 23 can be coordinated, so as to achieve precise clamping and positioning of the nut. During the clamping and positioning process, the positioning rod 261 will accurately insert into the center of the nut to ensure its stable position in space. At this time, the two first jaws 23 will also clamp the nut simultaneously in a synchronous manner, providing comprehensive support and fixation, effectively avoiding the displacement or loosening of the material during the processing.
[0026] The anti - detachment opening 24 can prevent the nut from falling under any possible circumstances, thereby reducing the risk of equipment damage and improving the safety of operation. During the specific clamping process, the elasticity of the spring 27 enables the pressing sleeve 25 to slide smoothly on the surface of the fixed rod 26. The spring 27 pushes the pressing sleeve 25 forward. This movement enables one end of the pressing sleeve 25 to apply uniform pressure to the nut. At the same time, the two anti - detachment openings 24 will act together to enhance the clamping force.
[0027] As the pressing sleeve 25 slides, the nut is uniformly stressed, ensuring that no deviation occurs during the whole process. This tight combination not only improves the clamping accuracy but also lays a solid foundation for subsequent processing steps.
[0028] Embodiment 2: As Figure 3 and Figure 4As shown, a nut is sleeved on one end of the positioning rod 261, and the nut is located between the two anti-slip openings 24. The limit block 29 is slidably connected to the limit hole 251, and one end of the extrusion sleeve 25 abuts the nut. The first electric cylinder 22 is installed on the inner side of the first mounting frame 21, and one end of the first electric cylinder 22 is fixedly connected to the side wall of the main body 1. The second clamping mechanism 3 includes a second mounting frame 31, and three second clamping jaws 34 are installed on the outer side of the second mounting frame 31. A second electric cylinder 33 is installed on one side of the second mounting frame 31, and the output end of the second electric cylinder 33 is fixedly connected to the second clamping jaw 34. Anti-slip teeth 32 are provided on the inner side of the second clamping jaw 34, and the second electric cylinder 33 is fixedly connected to the side wall of the main body 1.
[0029] The effect achieved by the entire embodiment is that, in the process of the extrusion sleeve 25 sliding along the outer surface of the fixed rod 26, the relative sliding of the positioning rod 261 and the limiting block 29 plays an important guiding role. Specifically, the limiting block 29 not only ensures that the movement trajectory of the extrusion sleeve 25 is more stable, but also effectively prevents the extrusion sleeve 25 from being separated from the fixed rod 26 after being pushed by the spring 27 through its limiting design. The extrusion sleeve 25 cooperates with the limiting block 29, thereby greatly reducing potential failures caused by sliding.
[0030] At the same time, the second clamping mechanism 3 mainly relies on the second electric cylinder 33 to drive the three second clamping claws 34 to move, ensuring the synchronization and stability of the clamping action. In this process, the presence of the anti-slip teeth 32 provides additional safety for clamping. These anti-slip teeth can effectively increase the friction of the clamping surface, thereby significantly improving the firmness of the clamping.
[0031] Through this design, even under high-speed or heavy-load operating conditions, the second clamping mechanism 3 can still maintain excellent performance and avoid the risk of falling due to stator sliding. The structure of the anti-slip teeth 32 optimizes the contact area, enabling it to more effectively grasp the clamped object and reduce the occurrence of sliding.
[0032] The use method and working principle of the device: In the process of producing BMC plastic-encapsulated motors, when the nut and stator need to be transferred and transported to the production line for BMC plastic-encapsulated motor assembly, the first electric cylinder 22 starts to operate, which can simultaneously control the activities of the two first clamping jaws 23, so as to facilitate the clamping and positioning of the nut and stator. During positioning, the positioning rod 261 will be inserted into the nut and stator to facilitate its preliminary positioning. At this time, the two first clamping jaws 23 will clamp the nut and stator, and the design of the anti-slip 24 effectively prevents the nut and stator from falling.
[0033] During the clamping process, the elasticity of the spring 27 will push the extrusion sleeve 25 to move, causing it to slide on the surface of the fixed rod 26. As the extrusion sleeve 25 moves, one end will squeeze the nut stator, which can cooperate with the two anti-disengagement parts 24 to further enhance the clamping and positioning effects on the nut stator.
[0034] When the extrusion sleeve 25 slides on the outer surface of the fixed rod 26, the positioning rod 261 on the surface and the limit block 29 will slide relative to each other, thus playing a guiding role. In addition, the limit design of the limit block 29 can prevent the extrusion sleeve 25 from detaching from the fixed rod 26 under the push of the spring 27.
[0035] When the second clamping mechanism 3 performs the clamping work, the second electric cylinder 33 is used to control the activities of the three second jaws 34, so as to achieve an anti-slip effect through the design of the anti-slip teeth 32 during the clamping process, thereby improving the firmness and stability of the clamping and avoiding the situation of dropping during the clamping process.
[0036] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims
1. A BMC plastic-sealed motor nut stator anti-drop gripper, comprising a main body (1), the main body (1) having heat dissipation holes (4) on its surface, characterized in that: A plurality of first clamping mechanisms (2) are installed on the side wall of the main body (1), and a plurality of second clamping mechanisms (3) are installed on one side of the main body (1); The first clamping mechanism (2) comprises a first mounting frame (21) and a first electric cylinder (22); a fixed block (28) is fixedly connected to the inner side of the first mounting frame (21); two first clamping jaws (23) are symmetrically mounted on the other side of the first mounting frame (21); an output end of the first electric cylinder (22) is fixedly connected to the first clamping jaws (23); one end of the two first clamping jaws (23) are provided with anti-slip openings (24) on the opposite sides; one end of the fixed block (28) is fixedly connected to a fixed rod (26); one end of the fixed rod (26) is fixedly connected to a positioning rod (261); and one end surface of the fixed rod (26) is fixedly connected to a limiting block (29); a surface of the fixed rod (26) is slidably connected to an extrusion sleeve (25); a limiting hole (251) is formed on the surface of the extrusion sleeve (25); a spring (27) is mounted between the extrusion sleeve (25) and the fixed block (28); and the spring (27) is sleeved on the surface of the fixed rod (26).
2. The BMC plastic-sealed motor nut stator anti-drop gripper according to claim 1, characterized in that: A nut is sleeved on one end of the positioning rod (261), and the nut is located between the two anti-slip openings (24).
3. The BMC plastic-sealed motor nut stator anti-drop gripper according to claim 2, characterized in that: The limiting block (29) is slidably connected to the limiting hole (251), and one end of the extrusion sleeve (25) abuts against the nut.
4. The BMC plastic-sealed motor nut stator anti-drop gripper according to claim 3, characterized in that: The first electric cylinder (22) is mounted on the inner side of the first mounting frame (21), and one end of the first electric cylinder (22) is fixedly connected to the side wall of the main body (1).
5. The BMC plastic-sealed motor nut stator anti-drop gripper according to claim 1, characterized in that: The second clamping mechanism (3) comprises a second mounting frame (31), and three second clamping claws (34) are mounted on the outer side of the second mounting frame (31).
6. The BMC plastic-sealed motor nut stator anti-drop gripper according to claim 5, characterized in that: A second electric cylinder (33) is mounted on one side of the second mounting frame (31), and an output end of the second electric cylinder (33) is fixedly connected to a second clamping claw (34).
7. The BMC plastic-sealed motor nut stator anti-drop gripper according to claim 6, characterized in that: The second clamping claw (34) is provided with anti-slip teeth (32) on the inner side, and the second electric cylinder (33) is fixedly connected to the side wall of the main body (1).