A motor coil connection terminal wire twisting tool

Abstract

This invention provides a motor coil terminal twisting fixture, comprising: a base, a sliding base, a rotating base, a clamping mechanism, and a driving mechanism; the sliding base is slidably mounted on the base; the rotating base is rotatably mounted on the sliding base with the sliding direction of the sliding base as its axis; multiple clamping mechanisms are evenly arranged with the axis of the rotating base as its center; multiple clamping mechanisms are mounted on the sliding base; the driving mechanism drives the clamping mechanisms to clamp the wires to be twisted, and then synchronously drives the rotating base to rotate and the sliding base to slide, performing twisting operations on multiple wires to be twisted; the driving mechanism realizes the orderly connection and synchronous control of clamping, rotation, and sliding actions, eliminating the need for manual operation and significantly improving the efficiency of motor stator twisting; the adaptable design of multiple clamping mechanisms solves the technical defects of traditional twisting fixtures with a fixed number of wire holes and inability to adapt to stators with different numbers of wires; the automated clamping and compound twisting actions solve the problems of cumbersome manual clamping operations and low twisting efficiency.

Description

Technical Field

[0001] This invention relates to the field of motor manufacturing technology, and more specifically to a screwing fixture for motor coil terminals. Background Technology

[0002] Stator winding is a crucial step in motor manufacturing, primarily involving the installation and securing of the stator windings. During stator winding installation, the wires need to be twisted together in a specific manner to form the desired coil shape and structure. This process typically requires specialized tools, such as twisting machines or jigs, to ensure the wires are tightly bonded together and meet the motor's design requirements.

[0003] For example, patent CN109831074B discloses a wire twisting machine, including a worktable, a workpiece clamping device slidably mounted on the worktable, a rotary power device mounted on the worktable for driving the twisting device to rotate, a wire twisting device for twisting multiple copper wires on the workpiece into a single strand, and a linear propulsion device mounted on the worktable. A synchronous linkage device is provided between the linear propulsion device and the rotary power device, and the linear propulsion device drives the workpiece clamping device to perform linear motion when the wire twisting device rotates. This wire twisting machine has a simple structure and low cost; it uses a wire twisting device to replace manual labor, and even thicker copper wires can be twisted into a beautiful twisted strand; it also improves work efficiency and reduces the labor intensity of personnel; and it has strong adaptability, especially suitable for twisting the copper wire ends pre-reserved on the stator. However, the number of wire holes in this wire twisting fixture is fixed, making it unsuitable for motor stators with different numbers of wires; and the device requires manual clamping of the wires, making operation cumbersome. Summary of the Invention

[0004] In view of the above-mentioned problems in the existing technology, the technical problem to be solved by the present invention is that the existing wire twisting fixture has a fixed number of wire holes, which cannot be adapted to motor stators with different numbers of wires; and the device requires manual clamping of the wires, which is cumbersome to operate.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a screw-in fixture for motor coil terminals, comprising: Base; The sliding seat is slidably mounted on the base; A rotating seat is rotatably mounted on the sliding seat with the sliding direction of the sliding seat as the axis; Multiple clamping mechanisms are evenly arranged around the axis of the rotating seat; these clamping mechanisms are mounted on the sliding seat to clamp the wire to be twisted; and The driving mechanism drives the clamping mechanism to clamp the wire to be twisted, and then simultaneously drives the rotating seat to rotate and the sliding seat to slide, so as to perform the twisting operation on multiple wires to be twisted.

[0006] Preferably, the clamping mechanism includes: a wire-clamping finger, a slider, and clamping components; one end of the wire-clamping finger is mounted on the rotating seat, and the slider is slidably mounted on the wire-clamping finger along its length; both the slider and the wire-clamping finger have coaxially arranged threading holes for the wire to be twisted, and the threading holes are arranged along the sliding direction of the slider; a plurality of clamping components are arranged in a circular array around the slider; the clamping components include: a wire-clamping roller, a clamping arm, a wire-clamping gear, and a rack; one end of the clamping arm is hinged to the wire-clamping finger, and the other end of the clamping arm is rotatably mounted with the wire-clamping roller, and the axis of the wire-clamping roller is parallel to the axis of the hinge point of the clamping arm; the end of the wire-clamping gear that is hinged to the clamping arm is fixed, and the axis of the wire-clamping gear is coaxial with the axis of the hinge point of the clamping arm; the rack is arranged along the sliding direction of the slider and fixed on the slider; the rack meshes with the wire-clamping gear; the driving mechanism drives the slider to slide.

[0007] Preferably, the middle part of the clamping arm is bent outward.

[0008] Preferably, the angle of the clamping finger is adjustable.

[0009] Preferably, it further includes an adjustment mechanism; the adjustment mechanism includes: an adjustment component and an adjustment gear ring; the adjustment component is configured one-to-one with the clamping fingers; the adjustment component includes: a threaded sleeve, a threaded rod, an adjustment gear, a push seat, and a columnar chuck; one end of the clamping finger is hinged to the rotating seat; strip-shaped slots are respectively opened on the opposite sides of the clamping finger along its length; the columnar chuck is configured one-to-one with the two strip-shaped slots, and one end of the columnar chuck extends into the strip-shaped slot, and the other end of the columnar chuck is fixed on the push seat; the threaded sleeve is rotatably mounted on the rotating seat, one end of the threaded rod is threadedly connected to the threaded sleeve, and the other end of the threaded rod is mounted on the push seat; the adjustment gear is coaxially fixed with the threaded sleeve; the adjustment gear ring is rotatably mounted on the rotating seat with the axis of the rotating seat as its center, and multiple adjustment gears mesh with the adjustment gear ring.

[0010] Preferably, the driving mechanism includes: a driving gear ring, an annular component, a pull rope, a limiting component, and a driving component; the driving gear ring is sleeved on the rotating seat and threadedly connected to the rotating seat; the annular component is coaxially and rotatably mounted on the side of the driving gear ring near the clamping mechanism; the pull rope and the limiting component are arranged one-to-one with the slider, one end of the pull rope is mounted on the slider, and the other end of the pull rope is mounted on the annular component; before the clamping mechanism clamps the wire to be twisted, the limiting component restricts the rotating seat from rotating on the sliding seat; after the clamping mechanism clamps the wire to be twisted, the limiting component stops restricting the rotating seat from rotating on the sliding seat; the driving component drives the driving gear ring to rotate and controls the driving gear ring to move in the sliding direction of the sliding seat.

[0011] Preferably, the limiting component includes: a pushing block, a limiting block, and a spring; the end of the pull rope away from the slider is mounted on the annular part via the pushing block; the pushing block is slidably mounted on the rotating seat along the length direction of the sliding seat; one end of the pushing block is fixed to the annular part, and the other end of the pushing block is equipped with a pull rope; the limiting block is slidably mounted on the rotating seat along the radial direction of the rotating seat; multiple limiting grooves are provided on the outer side of the sliding seat, and the multiple limiting grooves are evenly spaced on the outer side wall of the sliding seat with the axis of the rotating seat as the center; the inner end of the limiting block is engaged with the limiting groove; the side of the pushing block near the axis of the rotating seat is provided with a clearance groove for the outer end of the limiting block to be accommodated; the clearance groove is provided along the sliding direction of the sliding seat, and the end of the clearance groove away from the pull rope is provided with an inclined surface to push the limiting block to slide towards the axis of the rotating seat, so that the inner end of the limiting block slides into one of the limiting grooves; the spring applies a spring force to the limiting block away from the axis of the rotating seat.

[0012] Preferably, the cross-section of the limiting groove is triangular.

[0013] Preferably, the drive assembly includes: a splined shaft, a lead screw, a drive gear, a nut seat, an actuating plate, a guide rod, a motor, and a transmission unit; the splined shaft and the lead screw are arranged along the sliding direction of the sliding seat and rotatably mounted on the base; the drive gear is slidably mounted on the splined shaft via a spline, and the drive gear is meshed with the drive gear ring; the nut seat is threadedly connected to the lead screw; actuating plates are provided on both sides of the drive gear and the drive gear ring, and the actuating plates are fixed to the nut seat; one end of the guide rod is fixed to the actuating plate, and the other end of the guide rod is slidably inserted into the base along the sliding direction of the sliding seat; the motor drives the lead screw to rotate; the transmission unit connects the splined shaft and the lead screw so that the splined shaft and the lead screw rotate synchronously, and the moving speed of the nut seat on the lead screw is the same as the moving speed of the drive gear ring on the rotating seat.

[0014] Compared with the prior art, the present invention has at least the following advantages: 1. In this invention, the drive mechanism realizes the orderly connection and synchronous control of clamping, rotation and sliding actions, eliminating the need for manual intervention in intermediate processes, which greatly improves the efficiency of motor stator winding. At the same time, the adaptable design of multiple clamping mechanisms solves the technical defects of traditional winding fixtures with fixed number of wire holes and inability to adapt to stators with different wire output numbers. Automated clamping and compound winding actions solve the problems of cumbersome manual clamping operation and low winding efficiency.

[0015] 2. In this invention, the driving mechanism first drives the sliders in each clamping mechanism to slide along the length of the clamping fingers. As the sliders slide, they drive the racks arranged in a circular array around them to move synchronously. The racks mesh with the clamping gears fixed at the hinge end of the clamping arm, forming a transmission. Through the meshing of the gears and racks, the clamping arm rotates around the hinge point with the clamping fingers, thereby pushing the clamping rollers at the end of the clamping arm to synchronously approach the axis of the threading hole. The threading hole is for the pre-threaded wire to be twisted. The synchronous approach of the clamping rollers can form a uniform clamping force on the wire to be twisted in the threading hole from all sides, effectively... The system features automated synchronous clamping of multiple wires to be twisted. The circular array of clamping components ensures that the clamping force is evenly distributed along the circumference of the wires to be twisted, preventing deviation and deformation during clamping and ensuring the stability of the wires. Furthermore, the rotatable clamping rollers contact the wires to be twisted, allowing the wires to move linearly within the threading holes. This friction drives the clamping rollers to rotate, significantly reducing the friction between the two and preventing surface wear and wire jamming due to excessive friction during movement. This ensures the structural integrity and smooth movement of the wires to be twisted.

[0016] 3. In this invention, the angle of the clamping fingers is flexibly adjusted according to the lead-out angle and arrangement requirements of different motor stators, so that the extension direction of the clamping fingers matches the natural lead-out direction of the wire to be twisted. This allows the wire to be twisted to maintain a straight and natural extension state during threading and clamping, avoiding bending or force deviation of the wire due to mismatched angles. At the same time, it adapts to the differences in lead-out angles of motor stators of different specifications, eliminating the need to replace special clamping components and greatly improving the versatility and adaptability of the tooling for twisting different stators. The adjustment mechanism enables synchronous angle adjustment of multiple clamping fingers, replacing the tedious manual adjustment of each one, greatly improving the efficiency and consistency of angle adjustment, adapting to the twisting requirements of motor stators with different lead-out angles, and further enhancing the versatility and ease of operation of the tooling.

[0017] 4. In this invention, the entire driving process automatically switches the power transmission path through axial limiting after the pull rope is tightened. With the limiting and unlocking of the limiting component, the mechanical linkage and orderly connection of clamping, rotation and sliding actions are completed. No additional electrical control components are needed to control the action switching, which simplifies the control logic of the tooling. At the same time, the cooperation between the ring part and the pull rope realizes the synchronous traction of multiple sliders, ensuring that the clamping actions of each clamping mechanism are synchronized and consistent, ensuring the uniformity of the twisting quality, and improving the stability of equipment operation and the automation efficiency of twisting operation.

[0018] 5. In this invention, when clamping is required, the drive assembly drives the drive gear ring to rotate. Since the rotating seat cannot rotate, the threaded transmission between the drive gear ring and the rotating seat drives the drive gear ring to move axially relative to the clamping mechanism along the axis of the rotating seat, simultaneously driving the ring and the push block to continue sliding. While the push block slides and pulls the rope to drive the clamping assembly to complete the clamping of the wire to be twisted, the clearance groove on the push block moves synchronously to the limit block. Under the elastic force of the spring, the outer end of the limit block slides away from the axis of the rotating seat and embeds into the clearance groove. The inner end of the limit block simultaneously disengages from the limit groove, releasing the rotation restriction on the rotating seat and providing conditions for the subsequent rotation and twisting action of the rotating seat. The spring continuously provides the limit block with elastic force away from the axis of the rotating seat, ensuring that the limit block can quickly embed into the clearance groove when unlocking, and also reserving reset power for the next limit action. The inclined surface of the clearance groove cooperates with the straight groove section to achieve precise mechanical linkage between locking and unlocking of the limit block, so that the limit action and the clamping action are synchronously connected and precisely coordinated.

[0019] 6. In this invention, the entire drive assembly uses a motor as a single power source. Through the synchronous rotation of the lead screw and spline shaft, the rotational drive and axial follow-up of the drive gear ring are realized simultaneously. With the help of the actuating plate and guide rod, the drive gear is accurately followed, ensuring the continuity and accuracy of gear meshing, simplifying the power transmission structure, and improving the stability and synchronization of the transmission process. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0021] Figure 1 This is a perspective view of a motor coil terminal screwing fixture provided in an embodiment of the present invention.

[0022] Figure 2 This is a front view of a motor coil terminal screwing fixture provided in an embodiment of the present invention.

[0023] Figure 3 This is a partial view of a motor coil terminal screwing fixture provided in an embodiment of the present invention.

[0024] Figure 4 This is a schematic diagram of the clamping mechanism provided in an embodiment of the present invention.

[0025] Figure 5 This is a partial schematic diagram of the sliding seat provided in an embodiment of the present invention.

[0026] Figure 6 This is a schematic diagram of the adjustment mechanism provided in an embodiment of the present invention.

[0027] Reference numerals: 1. Base; 2. Sliding seat; 3. Rotating seat; 4. Clamping mechanism; 41. Wire clamping finger; 42. Slider; 43. Wire clamping roller; 44. Clamping arm; 45. Wire clamping gear; 46. Rack; 5. Drive mechanism; 51. Drive gear ring; 52. Ring component; 53. Pull rope; 54. Limiting assembly; 541. Push block; 542. Limiting block; 543. Spring; 544. Limiting groove; 545. Avoidance 546. Sloping surface; 55. Drive assembly; 551. Splined shaft; 552. Lead screw; 553. Drive gear; 554. Nut seat; 555. Actuating plate; 556. Guide rod; 557. Motor; 558. Transmission unit; 6. Adjustment mechanism; 61. Adjusting gear ring; 62. Threaded sleeve; 63. Threaded rod; 64. Adjusting gear; 65. Push seat; 66. Columnar chuck; 67. Strip-shaped chuck. Detailed Implementation

[0028] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0029] In this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0030] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] See Figures 1-6 The present invention provides an embodiment of a 557 motor coil terminal twisting fixture, comprising: a base 1, a sliding seat 2, a rotating seat 3, a clamping mechanism 4, and a driving mechanism 5; the sliding seat 2 is slidably mounted on the base 1; the rotating seat 3 is rotatably mounted on the sliding seat 2 with the sliding direction of the sliding seat 2 as the axis; multiple clamping mechanisms 4 are evenly arranged with the axis of the rotating seat 3 as the center; multiple clamping mechanisms 4 are mounted on the sliding seat 2 to clamp the wire to be twisted; the driving mechanism 5 drives the clamping mechanism 4 to clamp the wire to be twisted, and then synchronously drives the rotating seat 3 to rotate and slide with the sliding seat 2 to perform twisting operations on multiple wires to be twisted.

[0032] In practice, the drive mechanism 5 first drives multiple clamping mechanisms 4, evenly arranged around the axis of the rotating seat 3, to move synchronously and clamp the wires to be twisted. The even arrangement of multiple clamping mechanisms 4 can adapt to the wire twisting requirements of motors 557 stators with different numbers of wires, without the need to change tooling parts, greatly improving the adaptability of the tooling. At the same time, the automated synchronous clamping action replaces manual clamping operation, simplifying the preparation process before twisting and reducing the labor intensity of operators. After the clamping mechanism 4 completes the stable clamping of the wires to be twisted, the drive mechanism 5 synchronously drives the rotating seat 3 to rotate around the sliding direction of the sliding seat 2 as the axis, and drives the sliding seat 2 to slide along the base 1. The rotational power of the rotating seat 3 drives the multiple wires to be twisted to rotate and twist synchronously, while the linear sliding of the sliding seat 2 drives the rotating wires to be twisted to move axially synchronously. The rotation and linear movement The combined action twists multiple wires into a tightly fitted spiral structure, ensuring that the coil after twisting meets the structural and fastening requirements of the motor 557 design. Compared to the single rotation twisting method, the synchronous coordination of rotation and sliding makes the twisting of the wires more uniform and tight, avoiding local looseness or uneven twisting, and improving the twisting quality of the motor 557 stator coil. Throughout the entire process, the drive mechanism 5 achieves orderly connection and synchronous control of clamping, rotation and sliding actions, eliminating the need for manual intervention in intermediate processes, greatly improving the efficiency of motor 557 stator twisting. At the same time, the adaptable design of multiple clamping mechanisms 4 solves the technical defects of traditional twisting fixtures with a fixed number of wire holes that cannot be adapted to stators with different numbers of wires. The automated clamping and combined twisting action solves the problems of cumbersome manual clamping operation and low twisting efficiency.

[0033] See Figures 1-6 In other embodiments, the clamping mechanism 4 includes: a wire-clamping finger 41, a slider 42, and clamping components; one end of the wire-clamping finger 41 is mounted on the rotating seat 3, and the slider 42 is slidably mounted on the wire-clamping finger 41 along its length; both the slider 42 and the wire-clamping finger 41 have coaxially arranged wire-passing holes for the wire to be twisted, and the wire-passing holes are arranged along the sliding direction of the slider 42; multiple clamping components are arranged in a circular array around the slider 42; the clamping components include: a wire-clamping roller 43 and a clamping arm 4. 4. A wire-clamping gear 45 and a rack 46; one end of a clamping arm 44 is hinged to a wire-clamping finger 41, and a wire-clamping roller 43 is rotatably mounted on the other end of the clamping arm 44, with the axis of the wire-clamping roller 43 being parallel to the axis of the hinge point of the clamping arm 44; the end of the wire-clamping gear 45 that is hinged to the clamping arm 44 is fixed, and the axis of the wire-clamping gear 45 is coaxial with the axis of the hinge point of the clamping arm 44; the rack 46 is arranged along the sliding direction of the slider 42 and fixed on the slider 42; the rack 46 and the wire-clamping gear 45 mesh with each other; the slider 42 of the drive mechanism 5 slides.

[0034] In specific implementation, the drive mechanism 5 first drives the slider 42 in each clamping mechanism 4 to slide along the length direction of the clamping finger 41. When the slider 42 slides, it drives the racks 46 arranged in a circular array around it to move synchronously. The racks 46 and the clamping gears 45 fixed at the hinge end of the clamping arm 44 form a meshing transmission. With the meshing action of the gears and racks 46, the clamping arm 44 is driven to rotate around the hinge point with the clamping finger 41, thereby pushing the clamping roller 43 at the end of the clamping arm 44 to move synchronously towards the axis of the threading hole. The threading hole is for the wire to be pre-threaded. The synchronous movement of the clamping roller 43 can move the wire to be pre-threaded in the threading hole from all sides. The twisting process generates a uniform clamping force, enabling automated synchronous clamping of multiple wires to be twisted. The circular array of clamping components ensures that the clamping force is evenly distributed along the circumference of the wires to be twisted, preventing deviation and deformation during clamping and ensuring the stability of the wires. Furthermore, the rotatable clamping roller 43 contacts the wires to be twisted, allowing the wires to move linearly within the threading hole. This friction drives the clamping roller 43 to rotate, significantly reducing the friction between the two and preventing surface wear and wire jamming due to excessive friction during movement. This ensures the structural integrity and smooth movement of the wires to be twisted.

[0035] Furthermore, the middle part of the clamping arm 44 is bent outward; the outward bending structure of the clamping arm 44 provides sufficient movement space for the rotation and closing of the wire clamping roller 43, avoiding interference between the clamping arm 44 and the wire clamping fingers 41, slider 42 and other components during the rotation process, while allowing the wire clamping roller 43 to close synchronously towards the axis of the wire threading hole at a better angle.

[0036] See Figures 1-6 In other embodiments, the angle of the clamping finger 41 is adjustable. According to the output angle and arrangement requirements of different motor 557 stators, the angle of the clamping finger 41 can be flexibly adjusted so that the extension direction of the clamping finger 41 matches the natural output direction of the wire to be twisted. This allows the wire to be twisted to maintain a straight and natural extension state during the threading and clamping process, avoiding bending or force deviation of the wire due to mismatch in angle. At the same time, it adapts to the differences in output angle of different specifications of motor 557 stators, eliminating the need to replace special clamping components and greatly improving the versatility and adaptability of the tooling for twisting operations on different stators.

[0037] Furthermore, it also includes an adjustment mechanism 6; the adjustment mechanism 6 includes: an adjustment component and an adjustment gear ring 61; the adjustment component is arranged one-to-one with the clamping fingers 41; the adjustment component includes: a threaded sleeve 62, a threaded rod 63, an adjustment gear 64, a push seat 65, and a columnar clamping head 66; one end of the clamping fingers 41 is hinged to the rotating seat 3; strip-shaped grooves 67 are respectively opened on the opposite sides of the clamping fingers 41 along their length direction; the columnar clamping head 66 is arranged one-to-one with the two strip-shaped grooves 67, and the columnar... One end of the chuck 66 extends into the strip-shaped chuck groove 67, and the other end of the columnar chuck 66 is fixed on the push seat 65; the threaded sleeve 62 is rotatably mounted on the rotating seat 3, one end of the threaded rod 63 is threadedly connected to the threaded sleeve 62, and the other end of the threaded rod 63 is mounted on the push seat 65; the adjusting gear 64 is coaxially fixed with the threaded sleeve 62; the adjusting gear ring 61 is rotatably mounted on the rotating seat 3 with the axis of the rotating seat 3 as the center, and multiple adjusting gears 64 mesh with the adjusting gear ring 61.

[0038] In practice, rotating the adjusting gear ring 61 causes it to mesh with multiple adjusting gears 64, driving all the adjusting gears 64 to rotate synchronously. The adjusting gears 64 then drive the coaxially fixed threaded sleeve 62 to rotate synchronously. The threaded sleeve 62 and the threaded rod 63 form a threaded transmission, pushing the threaded rod 63 to move along the axial direction and causing the pusher seat 65 to move synchronously. When the pusher seat 65 moves, it causes the cylindrical chuck 66 to slide along the strip-shaped groove 67 of the clamping finger 41. The interaction between the cylindrical chuck 66 and the strip-shaped groove 67 creates a pushing and pulling force on the clamping finger 41, causing it to rotate around the hinge point with the rotating seat 3, thus adjusting the angle of the clamping finger 41. The annular meshing design of the adjusting gear ring 61 allows multiple adjusting gears 64 to rotate synchronously and at the same angle. The rotation of the screw thread 61 drives all the clamping fingers 41 to adjust their angles synchronously, ensuring that the clamping angles of multiple wires to be twisted remain consistent. At the same time, the thread drive of the threaded sleeve 62 and the threaded rod 63 has a self-locking characteristic, which can stably maintain the posture of the clamping fingers 41 after the angle is adjusted, preventing angle deviation during the twisting process. The sliding cooperation between the strip-shaped slot 67 and the columnar chuck 66 provides guidance and limit for the angle rotation of the clamping fingers 41, ensuring the accuracy and smoothness of the angle adjustment. The synchronous angle adjustment of multiple clamping fingers 41 is achieved through the adjustment mechanism 6, replacing the tedious operation of manual adjustment one by one, greatly improving the efficiency and consistency of angle adjustment, adapting to the twisting needs of the motor 557 stator with different wire exit angles, and further improving the versatility and ease of operation of the tooling.

[0039] See Figures 1-6In other embodiments, the driving mechanism 5 includes: a driving gear ring 51, an annular component 52, a pull rope 53, a limiting component 54, and a driving component 55; the driving gear ring 51 is sleeved on the rotating seat 3 and threadedly connected to the rotating seat 3; the annular component 52 is coaxially and rotatably mounted on the side of the driving gear ring 51 near the clamping mechanism 4; the pull rope 53 and the limiting component 54 are arranged one-to-one with the slider 42, one end of the pull rope 53 is mounted on the slider 42, and the other end of the pull rope 53 is mounted on the annular component 52; before the clamping mechanism 4 clamps the wire to be twisted, the limiting component 54 restricts the rotating seat 3 from rotating on the sliding seat 2; after the clamping mechanism 4 clamps the wire to be twisted, the limiting component 54 stops restricting the rotating seat 3 from rotating on the sliding seat 2; the driving component 55 drives the driving gear ring 51 to rotate and controls the driving gear ring 51 to move in the sliding direction of the sliding seat 2.

[0040] In practice, the drive assembly 55 first drives the drive gear ring 51 to rotate. Because the clamping mechanism 4 clamps the wire to be twisted, the limit assembly 54 restricts the rotation of the rotating seat 3 on the sliding seat 2. The rotating seat 3 remains fixed. The threaded transmission between the drive gear ring 51 and the rotating seat 3 drives the drive gear ring 51 to move axially relative to the clamping mechanism 4 along the axis of the rotating seat 3. Simultaneously, it drives the coaxial ring part 52 to move. The ring part 52 pulls the pull rope 53. The pull rope 53 pulls the slider 42 to slide along the length of the clamping finger 41, thereby driving the clamping assembly to complete the automatic clamping of the wire to be twisted.

[0041] After the wire is clamped, the limiting component 54 stops restricting the rotation of the rotating seat 3 on the sliding seat 2, and the driving component 55 continues to drive the driving gear ring 51 to rotate. At this time, the pull rope 53 is fully taut, and the pull rope 53 restricts the relative axial movement of the driving gear ring 51 on the rotating seat 3. The rotation of the driving gear ring 51 drives the rotating seat 3 to rotate on the sliding seat 2. The rotating seat 3 synchronously drives the clamping mechanism 4 and the clamped wire to rotate. At the same time, the driving component 55 controls the driving gear ring 51 to move along the sliding direction of the sliding seat 2, thereby driving the entire sliding seat 2 to slide synchronously along the base 1, realizing the combined action of the rotation of the rotating seat 3 and the sliding of the sliding seat 2, so that multiple wires to be twisted can move axially in a straight line while rotating, and be twisted into a tightly fitting braided structure.

[0042] The entire driving process automatically switches the power transmission path through the axial limit after the tension of the pull rope 53. With the limit component 54 limiting and unlocking, the mechanical linkage and orderly connection of clamping, rotation and sliding actions are completed. No additional electrical control components are needed to control the action switching, which simplifies the control logic of the tooling. At the same time, the cooperation between the ring part 52 and the pull rope 53 realizes the synchronous traction of the multiple sliders 42, ensuring that the clamping actions of each clamping mechanism 4 are synchronized and consistent, ensuring the uniformity of the twisting quality, and improving the stability of equipment operation and the automation efficiency of the twisting operation.

[0043] See Figures 1-6In other embodiments, the limiting component 54 includes: a pushing block 541, a limiting block 542, and a spring 543; one end of the pull rope 53 away from the slider 42 is mounted on the annular member 52 via the pushing block 541; the pushing block 541 is slidably mounted on the rotating seat 3 along the length direction of the sliding seat 2; one end of the pushing block 541 is fixed on the annular member 52, and the other end of the pushing block 541 is equipped with the pull rope 53; the limiting block 542 is slidably mounted on the rotating seat 3 along the radial direction of the rotating seat 3; a plurality of limiting grooves 544 are provided on the outer side of the sliding seat 2, and the plurality of limiting grooves 544 are circular about the axis of the rotating seat 3. The center is evenly spaced on the outer wall of the sliding seat 2; the inner end of the limiting block 542 is fitted with the limiting groove 544; the pushing block 541 is provided with a relief groove 545 for the outer end of the limiting block 542 to be accommodated on the side close to the axis of the rotating seat 3; the relief groove 545 is provided along the sliding direction of the sliding seat 2, and the end of the relief groove 545 away from the pull rope 53 is provided with an inclined surface 546 to push the limiting block 542 to slide towards the axis of the rotating seat 3, so that the inner end of the limiting block 542 slides into one of the limiting grooves 544; the spring 543 applies a spring force to the limiting block 542 away from the axis of the rotating seat 3.

[0044] In practice, when the wire to be twisted is not clamped, the push block 541 slides towards the clamping mechanism 4. The inclined surface 546 of its clearance groove 545 pushes the limiting block 542 to overcome the elastic force of the spring 543 and slide radially towards the axis of the rotating seat 3, so that the inner end of the limiting block 542 is engaged in the limiting groove 544 of the sliding seat 2, thereby limiting the rotation of the rotating seat 3. When clamping is required, the drive assembly 55 drives the drive gear ring 51 to rotate. Since the rotating seat 3 cannot rotate, the threaded transmission between the drive gear ring 51 and the rotating seat 3 drives the drive gear ring 51 to move axially relative to the clamping mechanism 4 along the axis of the rotating seat 3, simultaneously driving the ring part 52 and the push block 541 to continue sliding. The push block 541 slides and pulls the pull rope 53 to drive the clamping assembly to complete the clamping of the wire to be twisted, while the push block 541 continues to slide. The clearance groove 545 on block 541 moves synchronously to the limiting block 542. Under the elastic force of spring 543, the outer end of the limiting block 542 slides away from the axis of the rotating seat 3 and is embedded in the clearance groove 545. The inner end of the limiting block 542 simultaneously disengages from the limiting groove 544, releasing the rotation restriction on the rotating seat 3 and providing conditions for the subsequent rotation and twisting action of the rotating seat 3. Spring 543 continuously provides elastic force to the limiting block 542 away from the axis of the rotating seat 3, which not only ensures that the limiting block 542 can quickly embed into the clearance groove 545 when unlocking, but also reserves reset power for the next limiting action. The inclined surface 546 of the clearance groove 545 cooperates with the straight groove section to realize the precise mechanical linkage of locking and unlocking of the limiting block 542, so that the limiting action and clamping action are synchronously connected and precisely coordinated.

[0045] Furthermore, the cross-section of the limiting groove 544 is triangular; the triangular cross-section design not only ensures the firmness of the limiting lock, but also provides a smooth guide for the release and sliding of the limiting block 542, avoiding jamming, and making the locking and unlocking actions of the limiting component 54 more precise and smooth.

[0046] See Figures 1-6 In another embodiment, the drive assembly 55 includes: a splined shaft 551, a lead screw 552, a drive gear 553, a nut seat 554, a toggle plate 555, a guide rod 556, a motor 557, and a transmission unit 558; the splined shaft 551 and the lead screw 552 are arranged along the sliding direction of the sliding seat 2 and are rotatably mounted on the base 1; the drive gear 553 is coaxially and slidably mounted on the splined shaft 551 via a spline, and the drive gear 553 is meshed with the drive gear ring 51; the nut seat 554 is threadedly connected to the lead screw 552; the drive gear 553 and Both sides of the drive gear ring 51 are provided with actuating plates 555, and the actuating plates 555 are fixed to the nut seat 554; one end of the guide rod 556 is fixed on the actuating plate 555, and the other end of the guide rod 556 is slidably inserted into the base 1 along the sliding direction of the sliding seat 2; the motor 557 drives the lead screw 552 to rotate; the transmission unit 558 connects the spline shaft 551 and the lead screw 552 so that the spline shaft 551 and the lead screw 552 rotate synchronously, and the moving speed of the nut seat 554 on the lead screw 552 is the same as the moving speed of the drive gear ring 51 on the rotating seat 3.

[0047] In practice, motor 557 drives lead screw 552 to rotate, and lead screw 552 drives spline shaft 551 to rotate synchronously through transmission unit 558. Spline shaft 551 drives drive gear 553, which is slidably mounted coaxially with the spline, to rotate synchronously. Drive gear 553 meshes with drive gear ring 51 to drive its rotation. While lead screw 552 rotates, it drives threaded nut seat 554 to move along the sliding direction of sliding seat 2. Nut seat 554 drives fixed actuating plate 555 to move synchronously. Actuating plate 555 moves with nut seat 554 and pushes drive gear 553 to slide axially along spline shaft 551. At the same time, actuating plate 555 drives guide rod 556 to slide along base 1, thus actuating plate 555. The movement of the drive gear ring 51 is guided and limited, and the actuating plates 555 on both sides of the drive gear ring 51 move synchronously to ensure that the drive gear ring 51 is subjected to balanced force. The synchronous transmission and matching structure design of the transmission unit 558 ensures that the moving speed of the nut seat 554 on the lead screw 552 is consistent with the moving speed of the drive gear ring 51 on the rotating seat 3, ensuring that the drive gear 553 always meshes precisely with the drive gear ring 51 and avoids transmission problems such as tooth disengagement and jamming. After the pull rope 53 restricts the relative axial movement of the drive gear ring 51 on the rotating seat 3, the actuating plate 555 actuates the drive gear ring 51 to move, thereby driving the entire sliding seat 2 to slide synchronously along the base 1, realizing the compound action of the rotation of the rotating seat 3 and the sliding of the sliding seat 2. The entire drive assembly 55 uses the motor 557 as a single power source. Through the synchronous rotation of the lead screw 552 and the spline shaft 551, the rotational drive and axial follow-up of the drive gear ring 51 are realized. With the cooperation of the actuating plate 555 and the guide rod 556, the drive gear 553 is accurately followed, ensuring the continuity and accuracy of gear meshing, simplifying the power transmission structure, and improving the stability and synchronization of the transmission process.

[0048] Furthermore, the transmission unit 558 can be a sprocket and chain drive, and the transmission ratio between the two sprockets can be used to ensure that the moving speed of the nut seat 554 on the lead screw 552 is the same as the moving speed of the drive gear ring 51 on the rotating seat 3; the transmission unit 558 can also be a belt drive, gear drive, synchronous belt, or other structures for transmission.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A screw-tightening fixture for motor coil terminals, characterized in that, include: Base; The sliding seat is slidably mounted on the base; A rotating seat is rotatably mounted on the sliding seat with the sliding direction of the sliding seat as the axis; Multiple clamping mechanisms are evenly arranged around the axis of the rotating seat; the multiple clamping mechanisms are mounted on the sliding seat to clamp the wire to be twisted. and The driving mechanism drives the clamping mechanism to clamp the wire to be twisted, and then simultaneously drives the rotating seat to rotate and the sliding seat to slide, so as to perform the twisting operation on multiple wires to be twisted.

2. The motor coil terminal screwing fixture according to claim 1, characterized in that, The clamping mechanism includes: a wire-clamping finger, a slider, and clamping components; one end of the wire-clamping finger is mounted on the rotating base, and the slider is slidably mounted on the wire-clamping finger along its length; both the slider and the wire-clamping finger have coaxially arranged threading holes for the wire to be twisted, and the threading holes are arranged along the sliding direction of the slider; a plurality of clamping components are arranged in a circular array around the slider; the clamping components include: a wire-clamping roller, a clamping arm, a wire-clamping gear, and a rack; one end of the clamping arm is hinged to the wire-clamping finger, and the other end of the clamping arm is rotatably mounted with the wire-clamping roller, and the axis of the wire-clamping roller is parallel to the axis of the hinge point of the clamping arm; the end of the wire-clamping gear that is hinged to the clamping arm is fixed, and the axis of the wire-clamping gear is coaxial with the axis of the hinge point of the clamping arm; the rack is arranged along the sliding direction of the slider and fixed on the slider; the rack meshes with the wire-clamping gear; the driving mechanism drives the slider to slide.

3. The motor coil terminal screwing fixture according to claim 2, characterized in that, The clamping arm is bent outwards in the middle.

4. The motor coil terminal screwing fixture according to claim 2, characterized in that, The angle of the clamping finger is adjustable.

5. The motor coil terminal screwing fixture according to claim 4, characterized in that, It also includes an adjustment mechanism; the adjustment mechanism includes: an adjustment component and an adjustment gear ring; the adjustment component is configured one-to-one with the clamping fingers; the adjustment component includes: a threaded sleeve, a threaded rod, an adjustment gear, a push seat, and a columnar chuck; one end of the clamping finger is hinged to the rotating seat; strip-shaped slots are respectively opened on the opposite sides of the clamping finger along its length; the columnar chuck is configured one-to-one with the two strip-shaped slots, and one end of the columnar chuck extends into the strip-shaped slot, and the other end of the columnar chuck is fixed on the push seat; the threaded sleeve is rotatably mounted on the rotating seat, one end of the threaded rod is threadedly connected to the threaded sleeve, and the other end of the threaded rod is mounted on the push seat; the adjustment gear is coaxially fixed with the threaded sleeve; the adjustment gear ring is rotatably mounted on the rotating seat with the axis of the rotating seat as its center, and multiple adjustment gears mesh with the adjustment gear ring.

6. The motor coil terminal screwing fixture according to claim 2, characterized in that, The driving mechanism includes: a driving gear ring, an annular component, a pull rope, a limiting component, and a driving component; the driving gear ring is sleeved on the rotating seat and threadedly connected to the rotating seat; the annular component is coaxially and rotatably mounted on the side of the driving gear ring near the clamping mechanism; the pull rope and the limiting component are arranged one-to-one with the slider, one end of the pull rope is mounted on the slider, and the other end of the pull rope is mounted on the annular component; before the clamping mechanism clamps the wire to be tightened, the limiting component restricts the rotating seat from rotating on the sliding seat; after the clamping mechanism clamps the wire to be tightened, the limiting component stops restricting the rotating seat from rotating on the sliding seat; the driving component drives the driving gear ring to rotate and controls the driving gear ring to move in the sliding direction of the sliding seat.

7. The motor coil terminal screwing fixture according to claim 6, characterized in that, The limiting assembly includes: a pushing block, a limiting block, and a spring; the end of the pull rope away from the slider is mounted on the annular part via the pushing block; the pushing block is slidably mounted on the rotating seat along the length direction of the sliding seat; one end of the pushing block is fixed to the annular part, and the other end of the pushing block is equipped with a pull rope; the limiting block is slidably mounted on the rotating seat along the radial direction of the rotating seat; multiple limiting grooves are formed on the outer side of the sliding seat, and the multiple limiting grooves are evenly spaced on the outer side wall of the sliding seat with the axis of the rotating seat as the center; the inner end of the limiting block is engaged with the limiting groove; the side of the pushing block near the axis of the rotating seat is provided with a clearance groove for the outer end of the limiting block to be accommodated; the clearance groove is arranged along the sliding direction of the sliding seat, and the end of the clearance groove away from the pull rope is provided with an inclined surface to push the limiting block to slide towards the axis of the rotating seat, so that the inner end of the limiting block slides into one of the limiting grooves; the spring applies a spring force to the limiting block away from the axis of the rotating seat.

8. The motor coil terminal screwing fixture according to claim 7, characterized in that, The limiting groove has a triangular cross-section.

9. A screw-in fixture for motor coil terminals according to claim 6, characterized in that, The drive assembly includes: a splined shaft, a lead screw, a drive gear, a nut seat, an actuating plate, a guide rod, a motor, and a transmission unit. The splined shaft and the lead screw are arranged along the sliding direction of the sliding seat and are rotatably mounted on the base. The drive gear is slidably mounted on the splined shaft via a spline, and the drive gear meshes with the drive gear ring. The nut seat is threadedly connected to the lead screw. Actuating plates are provided on both sides of the drive gear and the drive gear ring, and the actuating plates are fixed to the nut seat. One end of the guide rod is fixed to the actuating plate, and the other end of the guide rod is slidably inserted into the base along the sliding direction of the sliding seat. The motor drives the lead screw to rotate. The transmission unit connects the splined shaft and the lead screw so that the splined shaft and the lead screw rotate synchronously, and the moving speed of the nut seat on the lead screw is the same as the moving speed of the drive gear ring on the rotating seat.

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