An auxiliary IPIN automatic insertion tray mechanism
Patent Information
- Application Number
- CN202611148049.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-07-30
- Publication Date
- 2026-10-13
AI Technical Summary
[0006]本发明的目的在于提供一种辅助IPIN自动插入托盘机构,以解决上述背景技术中现有的新能源扁线电机绕组装配过程中,IPIN零件多采用人工方式组装至绕组内部,人工作业效率偏低,装配质量受人员操作状态影响存在波动,人工成本投入较高,难以适配自动化生产线的连续流转作业节奏的问题
[0028]该一种辅助IPIN自动插入托盘机构,通过升降台联动滑动环与放线块的传动结构,可通过单一路径动力实现托盘顶升与放线块开合的连贯动作,减少动力元件配置数量,降低设备制造成本。
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Figure CN122908531A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of motor manufacturing technology, specifically to an auxiliary IPIN automatic insertion tray mechanism. Background Technology
[0002] The automatic IPIN insertion tray mechanism is a type of automated auxiliary tooling equipment for motor winding assembly. It works with industrial robots to complete the winding IPIN insertion process, replacing the traditional manual operation mode, adapting to the tray turnover rhythm of the production line, and improving winding assembly efficiency and product quality consistency.
[0003] For example, Chinese Patent CN223584008U discloses an IPIN insertion fixture with automatic clamping and anti-scratch copper wire, belonging to the field of motor parts processing technology. It includes a bottom support plate and a base mounted on the bottom support plate. A column is fixed at the center of the top of the base, and a top plate is fixed at the top of the column. Multiple positioning slots for inserting flat copper wires are evenly distributed on the top plate. Multiple sets of fixing components that cooperate with the flat copper wires are evenly distributed on the surface of the top plate. By setting the fixing components, the elastic rebound of the springs continuously provides a fixing force to the flat copper wires, enabling rapid positioning. This effectively prevents the flat copper wires from shaking during insertion into the fixture, avoiding positional movement that could affect the subsequent robot's ability to remove and transfer multiple sets of flat copper wires as a whole. Furthermore, the overall assembly adopts a modular structure, facilitating disassembly and replacement of individual components, further improving the overall functionality of the insertion fixture.
[0004] For example, Chinese Patent CN219372234U discloses a wiring mechanism for a flat wire motor, relating to the technical field of assembly equipment for flat wire motors used in new energy vehicles. This wiring mechanism for a flat wire motor includes a bracket, a lateral drive assembly, an upper wire abutment assembly for pressing the upper end of the flat coil, a lower wire abutment assembly for pressing the lower end of the flat coil, a pressing and securing assembly for pressing the upper surface of the flat coil, and a wire support assembly for supporting the inner wall of the flat coil in an outwardly expanding or inwardly contracting manner. The pressing and securing assembly and the wire support assembly can descend and pass through the upper wire abutment assembly and the lower wire abutment assembly in sequence to insert the flat coil into the stator. By using the upper wire abutment assembly, the lower wire abutment assembly, the wire support assembly, and the pressing and securing assembly, the pressing of the upper end of the outer wall of the flat coil, the pressing of the lower end of the outer wall of the flat coil, the pressing of the inner wall of the flat coil, and the pressing and securing of the flat coil are automatically realized, limiting and inserting the flat coil, thus improving the insertion accuracy.
[0005] Most of the existing technologies mentioned above improve the overall structure. However, in the current assembly process of new energy flat wire motor windings, IPIN parts are mostly assembled into the windings manually. The efficiency of manual operation is low, the assembly quality fluctuates due to the influence of the operator's condition, the labor cost is high, and it is difficult to adapt to the continuous flow operation rhythm of automated production lines. Summary of the Invention
[0006] The purpose of this invention is to provide an auxiliary IPIN automatic insertion tray mechanism to solve the problems in the existing new energy flat wire motor winding assembly process mentioned above, where IPIN parts are mostly assembled into the winding by manual means, resulting in low manual operation efficiency, fluctuating assembly quality due to the influence of personnel operation status, high labor costs, and difficulty in adapting to the continuous flow operation rhythm of automated production lines.
[0007] To achieve the above objectives, the present invention provides the following technical solution: an auxiliary IPIN automatic insertion tray mechanism, characterized in that it includes a frame, a lifting platform, a sliding ring, a support block, a limiting block, a mounting block, a slanted slider, an inner wire feeding block, an outer wire feeding block, and a spring. The lifting platform is slidably mounted on the frame in the vertical direction. The support block is fixed to the lifting platform. The limiting block is fixed to the lower end of the sliding ring. During the upward movement of the lifting platform, the support block abuts against the limiting block, causing the sliding ring to move upward synchronously. The mounting block is connected to the sliding ring. The slanted slider is fixedly connected to the mounting block. When the sliding ring moves upward, it drives the inner wire feeding block to move radially inward and the outer wire feeding block to move radially outward through the slanted slider, forming a material feeding channel for the IPIN to fall by its own weight. The spring acts on the inner and outer wire feeding blocks. When the sliding ring moves downward, the inner and outer wire feeding blocks are radially reset under the elastic force of the spring, pushing the IPIN that has fallen into the material feeding channel to a preset mounting position.
[0008] Furthermore, a mounting base is fixed to the top surface of the lifting platform, and a tray base plate is fixedly connected above the mounting base. The tray base plate is used to support the tray with pre-installed coils.
[0009] Furthermore, the mounting block is cylindrical and located in the inner region of the coil when installed.
[0010] Furthermore, a guide rail is fixed radially on the bottom plate of the tray, and a movable ring is slidably installed on the guide rail. The inner wire release block and the outer wire release block are both fixedly connected to the corresponding movable ring.
[0011] Furthermore, a tie rod is hinged between the inclined slider and the moving ring, and the moving ring slides along the guide rail through the tie rod when the sliding ring rises and falls.
[0012] Furthermore, a guide key is provided between the frame and the sliding ring, which provides vertical guidance and circumferential limit for the lifting and lowering movement of the sliding ring.
[0013] Furthermore, the guide rail, moving ring, inner wire feeding block and outer wire feeding block are arranged in six sets, evenly distributed along the circumference of the sliding ring, and all wire feeding blocks are synchronously driven by the same sliding ring.
[0014] Furthermore, the vertical upward stroke of the sliding ring is 10mm, corresponding to an inward movement stroke of the inner wire block and an outward movement stroke of the outer wire block, both of which are 3mm.
[0015] Furthermore, at least two of the support blocks and limiting blocks are provided, symmetrically distributed along the circumference of the sliding ring.
[0016] Furthermore, the spring is a compression spring, which is respectively provided on the inner and outer sides of each moving ring. The two ends of the spring abut against the fixed part of the tray bottom plate and the moving ring, respectively, to provide radial reset elastic force for the corresponding wire feeding block.
[0017] The frame provides the installation support foundation for the entire mechanism. The lifting platform slides vertically along the frame. The support block rises synchronously with the lifting platform and abuts against the limit block, causing the sliding ring to move upward synchronously. The mounting block rises and falls synchronously with the sliding ring. The inclined slider transmits power as the mounting block moves upward, causing the inner wire feeding block to move radially inward and the outer wire feeding block to move radially outward, forming a feeding channel for the IPIN to fall by its own weight. The spring acts on the corresponding wire feeding block. When the sliding ring moves downward, the spring releases its elastic force, causing the inner and outer wire feeding blocks to return to their radial positions and push the IPIN to the preset installation position.
[0018] The mounting base is fixed to the top surface of the lifting platform to form the upper support base. The bottom plate of the pallet is connected above the mounting base and rises and falls synchronously with the lifting platform to support the pallet with the pre-installed coil, thereby realizing the separation action of the pallet from the conveyor line.
[0019] A cylindrical mounting block is arranged inside the coil to make full use of the internal space of the coil to install the inclined slider transmission structure, thereby reducing the overall radial size of the mechanism.
[0020] The guide rail is fixed radially to the bottom plate of the tray to form a linear guide structure. The moving ring slides radially along the guide rail. The inner and outer wire feeding blocks move synchronously with the moving ring to ensure the positional accuracy of the wire feeding blocks during movement.
[0021] The diagonal tie rod is hinged between the diagonal slider and the moving ring. When the sliding ring rises and falls, it drives the diagonal slider to move synchronously. The vertical power is converted into radial power through the linkage of the diagonal tie rod, which drives the moving ring to slide smoothly along the guide rail.
[0022] The guide key is located between the frame and the sliding ring to constrain the circumferential rotational freedom of the sliding ring, provide vertical guidance for the lifting and lowering motion of the sliding ring, and improve the positional stability of the transmission process.
[0023] Six sets of guide rails, moving rings, and corresponding wire feeding blocks are evenly arranged along the circumference of the sliding ring and synchronously driven by the same sliding ring to achieve multi-station synchronous operation and improve the efficiency of the insertion process.
[0024] The vertical upward stroke of the sliding ring is 10mm, which corresponds to a 3mm radial movement stroke of the inner and outer wire blocks, adapting to the opening and closing size requirements of the winding slot and ensuring that the IPIN falls smoothly.
[0025] At least two support blocks and limit blocks are symmetrically distributed along the circumference of the sliding ring to evenly transmit the lifting power and reduce the probability of uneven load jamming during the lifting process of the sliding ring.
[0026] The springs adopt a compression spring structure and are arranged on the inner and outer sides of each moving ring respectively. The two ends abut against the fixed part of the tray bottom plate and the moving ring respectively, providing stable radial reset elastic force and ensuring the reliability of the wire feeding block reset action.
[0027] Compared with the prior art, the beneficial effects of the present invention are:
[0028] This auxiliary IPIN automatic pallet insertion mechanism, through the transmission structure of the lifting platform, linkage sliding ring and wire feeding block, can achieve the continuous action of pallet lifting and wire feeding block opening and closing through a single path of power, reducing the number of power components and lowering equipment manufacturing costs.
[0029] The vertical lifting motion is converted into the radial reciprocating motion of the wire feeding block through the transmission cooperation between the inclined slider and the inclined pull rod. The structure is compact and can be adapted to the limited installation space inside the coil.
[0030] By combining the spring return structure with the IPIN's own weight to fall, the IPIN can be automatically returned to its original position, improving the automation level of the insertion process and ensuring the consistency of the assembly position.
[0031] Multiple wire feeding units are driven synchronously by the same power source, resulting in good synchronicity of action and improved efficiency of the insertion process. The guide key and guide rail guide structure work together to improve the positional accuracy and smoothness of the mechanism during movement. Attached Figure Description
[0032] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0033] Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A in the middle;
[0034] Figure 3 This is a side view of the limiting block and sliding ring of the present invention.
[0035] Figure 4 This is a top view of the limiting block and sliding ring of the present invention;
[0036] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point B;
[0037] Figure 6 This is a schematic cross-sectional view of the limiting block and sliding ring of the present invention;
[0038] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point C.
[0039] In the diagram: 1. Frame; 2. Lifting platform; 3. Mounting base; 4. Mounting block; 5. Slanted slider; 6. Tray base plate; 7. Support block; 8. Limiting block; 9. Sliding ring; 10. Slanted tie rod; 11. Coil; 12. Guide rail; 13. Moving ring; 14. Guide key; 15. Spring; 16. Inner wire release block; 17. Outer wire release block. Detailed Implementation
[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0041] Example 1: Please refer to Figure 1-7 The present invention provides the following technical solution:
[0042] An auxiliary IPIN automatic tray insertion mechanism, characterized in that it includes a frame 1, a lifting platform 2, a sliding ring 9, a support block 7, a limiting block 8, a mounting block 4, a slanted slider 5, an inner wire feeding block 16, an outer wire feeding block 17, and a spring 15. The lifting platform 2 is slidably mounted on the frame 1 in a vertical direction. The support block 7 is fixed to the lifting platform 2, and the limiting block 8 is fixed to the lower end of the sliding ring 9. During the upward movement of the lifting platform 2, the support block 7 abuts against the limiting block 8, causing the sliding ring 9 to move upward synchronously. The mounting block 4 and the sliding ring 9... Connected to the mounting block 4, the inclined slider 5 is fixedly connected to the mounting block 4. When the sliding ring 9 moves upward, it drives the inner wire feeding block 16 to move radially inward and the outer wire feeding block 17 to move radially outward through the inclined slider 5, forming a material feeding channel for the IPIN to fall by its own weight. The spring 15 acts on the inner wire feeding block 16 and the outer wire feeding block 17. When the sliding ring 9 moves downward, the inner wire feeding block 16 and the outer wire feeding block 17 are radially reset under the elastic force of the spring 15, pushing the IPIN that has fallen into the material feeding channel to the preset mounting position.
[0043] The top surface of the lifting platform 2 is fixed with a mounting base 3, and a tray base plate 6 is fixedly connected above the mounting base 3. The tray base plate 6 is used to support the tray of the pre-installed coil 11. The mounting block 4 is cylindrical and is located in the inner area of the coil 11 when installed.
[0044] A guide rail 12 is fixed radially on the bottom plate 6 of the tray, and a movable ring 13 is slidably installed on the guide rail 12. The inner wire release block 16 and the outer wire release block 17 are both fixedly connected to the corresponding movable ring 13.
[0045] A diagonal tie rod 10 is hinged between the inclined slider 5 and the moving ring 13. When the sliding ring 9 rises and falls, the moving ring 13 is driven to slide along the guide rail 12 through the diagonal tie rod 10. A guide key 14 is provided between the frame 1 and the sliding ring 9. The guide key 14 provides vertical guidance and circumferential limit for the rising and falling movement of the sliding ring 9.
[0046] Six sets of guide rails 12, moving rings 13, inner wire feeding blocks 16, and outer wire feeding blocks 17 are arranged evenly along the circumference of the sliding ring 9. All wire feeding blocks are synchronously driven by the same sliding ring 9. The vertical upward stroke of the sliding ring 9 is 10mm, and the inward movement stroke of the inner wire feeding block 16 and the outward movement stroke of the outer wire feeding block 17 are both 3mm. At least two support blocks 7 and limit blocks 8 are provided, symmetrically distributed along the circumference of the sliding ring 9. The spring 15 is a compression spring, which is provided on the inner and outer sides of each moving ring 13 respectively. The two ends of the spring 15 abut against the fixing part of the tray bottom plate 6 and the moving ring 13 respectively, providing radial reset elastic force for the corresponding wire feeding block.
[0047] The frame 1 provides a stable mounting foundation for the entire mechanism. The lifting platform 2 slides vertically along the frame 1, and the support block 7 moves upward synchronously with the lifting platform 2. When it reaches the preset position, the upper surface of the support block 7 abuts against the lower surface of the limit block 8. As it continues to rise, it drives the limit block 8 and the sliding ring 9 to move upward synchronously. The mounting block 4 rises together with the sliding ring 9, and the inclined slider 5 fixed to the mounting block 4 moves upward synchronously to transmit transmission power, driving the inner wire feeding block 16 to move radially inward and the outer wire feeding block 17 to move radially outward. The inner and outer wire feeding blocks together exit the winding slot range, forming a continuous vertical The straight drop channel allows the IPIN to fall to the bottom of the winding by its own weight. The spring 15 moves with the wire feeding block, generating elastic deformation and storing elastic potential energy. When the lifting platform 2 drives the sliding ring 9 to move downward, the transmission action of the inclined slider 5 is gradually released. The spring 15 releases its elastic potential energy to push the inner wire feeding block 16 and the outer wire feeding block 17 to move radially back to their original positions, pushing the falling IPIN to the preset installation position in the winding slot. The opening and closing of the drop channel and the IPIN return to their original positions are achieved through a single-path lifting power synchronization, reducing the configuration of power components and improving the automation level of the insertion process.
[0048] Mounting base 3 is fixedly connected to the top surface of lifting platform 2 to form an upper supporting base. The pallet bottom plate 6 is fixedly installed in the area above mounting base 3 and moves vertically in sync with the lifting action of lifting platform 2. The upper end of pallet bottom plate 6 can support the working pallet with pre-installed coil 11. When lifting platform 2 rises, it drives pallet bottom plate 6 and pallet to rise together, so that pallet is separated from the conveyor line below, providing a stable working reference for subsequent insertion operations.
[0049] The mounting block 4 adopts a cylindrical structure. When installed, it is located in the inner annular space of the coil 11. It can make full use of the idle space inside the coil to arrange the inclined slider 5 transmission structure without occupying additional installation space outside the coil. This effectively reduces the overall radial size of the mechanism and is suitable for compact winding operation positions.
[0050] The guide rail 12 is fixedly laid on the upper surface of the tray bottom plate 6 in the radial direction to form a guide rail for linear motion. The moving ring 13 is embedded in the rail body of the guide rail 12 and can slide radially back and forth along the rail body. The inner wire feeding block 16 and the outer wire feeding block 17 are respectively fixedly connected to the corresponding positions of the corresponding moving ring 13 and move radially synchronously with the moving ring 13. The guide rail 12 can constrain the movement direction of the moving ring 13, avoid positional deviation during the movement of the wire feeding block, and improve the positional accuracy of the opening and closing action of the wire feeding block.
[0051] The two ends of the diagonal tie rod 10 are connected to the diagonal slider 5 and the moving ring 13 respectively through a hinge structure. When the sliding ring 9 drives the diagonal slider 5 to make vertical lifting and lowering motion, the diagonal tie rod 10 swings at an angle with the displacement of the diagonal slider 5, converting the vertical driving force into the radial driving force, which drives the moving ring 13 to make smooth radial sliding along the guide rail 12. The smooth conversion of the motion direction is achieved through the linkage transmission form, reducing the risk of jamming in the transmission process.
[0052] The guide key 14 is embedded in the fit gap between the frame 1 and the sliding ring 9. The key body extends vertically and can constrain the circumferential rotational freedom of the sliding ring 9, prevent circumferential deflection during the lifting and lowering process of the sliding ring 9, and provide precise guidance for the vertical lifting and lowering movement of the sliding ring 9, thereby improving the operational stability and positional accuracy of the sliding ring 9 during the transmission process.
[0053] The guide rail 12, the moving ring 13, the inner wire feeding block 16 and the outer wire feeding block 17 are arranged in six groups, evenly spaced along the circumference of the sliding ring 9. All wire feeding units are synchronously driven by the same sliding ring 9 through the transmission structure, which can realize the synchronous opening and closing of multiple slots, improve the insertion efficiency of a single station, and ensure the synchronous consistency of the actions of each group of wire feeding blocks.
[0054] The vertical upward stroke of the sliding ring 9 is set to 10mm. Under the corresponding transmission ratio, the inward movement stroke of the inner wire feeding block 16 and the outward movement stroke of the outer wire feeding block 17 are both 3mm. This stroke parameter can match the opening and closing size requirements of the winding slot, ensuring that the width of the feeding channel meets the requirements for the smooth falling of the IPIN, while avoiding excessive movement of the wire feeding block, which would increase the space occupied by the mechanism.
[0055] At least two support blocks 7 and limit blocks 8 are provided, symmetrically distributed along the circumference of the sliding ring 9. During the lifting process, each support block 7 synchronously abuts against the corresponding limit block 8, which can evenly transmit the lifting power to different circumferential positions of the sliding ring 9, avoid unilateral load during the lifting process of the sliding ring 9, and reduce the probability of the sliding ring 9 getting stuck during lifting.
[0056] Spring 15 adopts a compression spring structure. A set of compression springs is set on the inner and outer sides of each moving ring 13. One end of each spring abuts against the fixed support part of the tray bottom plate 6, and the other end abuts against the side end face of the corresponding moving ring 13. It can provide stable radial reset elastic force for the inner and outer wire feeding blocks respectively, ensuring that the wire feeding block can be smoothly reset after the transmission action is released, and improving the reliability of the reset action.
[0057] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0058] 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. An auxiliary IPIN automatic insertion tray mechanism, characterized in that, The system includes a frame (1), a lifting platform (2), a sliding ring (9), a support block (7), a limiting block (8), a mounting block (4), a sliding block (5), an inner wire feeding block (16), an outer wire feeding block (17), and a spring (15). The lifting platform (2) is slidably mounted on the frame (1) in the vertical direction. The support block (7) is fixed to the lifting platform (2), and the limiting block (8) is fixed to the lower end of the sliding ring (9). During the upward movement of the lifting platform (2), the support block (7) abuts against the limiting block (8), causing the sliding ring (9) to move upward synchronously. The mounting block (4) and the sliding ring (9) are connected. The inclined slider (5) is fixedly connected to the mounting block (4). When the sliding ring (9) moves upward, it drives the inner wire release block (16) to move radially inward and the outer wire release block (17) to move radially outward, forming a material drop channel for the IPIN to fall by its own weight. The spring (15) acts on the inner wire release block (16) and the outer wire release block (17). When the sliding ring (9) moves downward, the inner wire release block (16) and the outer wire release block (17) are radially reset under the elastic force of the spring (15), pushing the IPIN that has fallen into the material drop channel to the preset installation position.
2. The auxiliary IPIN automatic insertion tray mechanism according to claim 1, characterized in that, The top surface of the lifting platform (2) is fixed with a mounting base (3), and a tray base plate (6) is fixedly connected above the mounting base (3). The tray base plate (6) is used to support the tray of the pre-installed coil (11).
3. The auxiliary IPIN automatic insertion tray mechanism according to claim 2, characterized in that, The mounting block (4) is cylindrical and is located in the inner region of the coil (11) in the installed state.
4. The auxiliary IPIN automatic insertion tray mechanism according to claim 2, characterized in that, A guide rail (12) is fixed radially on the bottom plate (6) of the tray, and a movable ring (13) is slidably installed on the guide rail (12). The inner wire release block (16) and the outer wire release block (17) are both fixedly connected to the corresponding movable ring (13).
5. The auxiliary IPIN automatic insertion tray mechanism according to claim 4, characterized in that, A tie rod (10) is hinged between the inclined slider (5) and the moving ring (13). When the sliding ring (9) rises and falls, the moving ring (13) is driven to slide along the guide rail (12) through the tie rod (10).
6. The auxiliary IPIN automatic insertion tray mechanism according to claim 1, characterized in that, A guide key (14) is provided between the frame (1) and the sliding ring (9), and the guide key (14) provides vertical guidance and circumferential limit for the lifting and lowering movement of the sliding ring (9).
7. The auxiliary IPIN automatic insertion tray mechanism according to claim 4, characterized in that, The guide rail (12), moving ring (13), inner wire feeding block (16) and outer wire feeding block (17) are arranged in six groups, evenly distributed along the circumference of the sliding ring (9), and all wire feeding blocks are synchronously driven by the same sliding ring (9).
8. The auxiliary IPIN automatic insertion tray mechanism according to claim 1, characterized in that, The vertical upward stroke of the sliding ring (9) is 10mm, and the inward movement stroke of the inner wire block (16) and the outward movement stroke of the outer wire block (17) are both 3mm.
9. The auxiliary IPIN automatic insertion tray mechanism according to claim 1, characterized in that, At least two of the support blocks (7) and limiting blocks (8) are provided, and they are symmetrically distributed along the circumference of the sliding ring (9).
10. The auxiliary IPIN automatic insertion tray mechanism according to claim 4, characterized in that, The spring (15) is a compression spring, which is provided on the inner and outer sides of each moving ring (13). The two ends of the spring (15) abut against the fixed part of the tray bottom plate (6) and the moving ring (13) respectively, providing radial reset elastic force for the corresponding wire feeding block.
Citation Information
Patent Citations
Wire plugging mechanism for flat wire motor
CN219372234U
Anti-scratch copper wire ipin insertion tool with automatic clamping function
CN223584008U