Wire conveying device and method for manufacturing coreless motor coil

Abstract

The invention discloses a wire conveying device and method for manufacturing a coreless motor coil, and relates to the technical field of coil machining, the device comprises a driving assembly, a harmonic reducer and a wire outlet mechanism, and one end of the harmonic reducer is in driving connection with the driving assembly; the wire outlet mechanism comprises a first wire guiding mechanism, a wire clamping mechanism and a second wire guiding mechanism. The first wire guiding mechanism comprises a rocker arm, a perforated pipe and two first wire outlet structures, a wire is vertically arranged between the sides, tightly attached to each other, of the two first wire outlet structures in a penetrating mode, and the bottom end of the wire enters the second wire guiding mechanism through the wire clamping mechanism and is led out. During normal winding, the driving assembly drives the harmonic reducer to work and drives the rocker arm to swing within a certain angle range, so that a wire is limited to be guided and combed between the two first wire outlet structures; the wire clamping mechanism is used for clamping and positioning the wire, so that clamping and releasing of the wire do not need manual control, the automation degree is high, the structure is simple, and the cost is low.

Description

Technical Field

[0001] The present invention relates to the technical field of coil manufacturing equipment, and in particular to a wire conveying device and method for manufacturing coreless cup motor coils. Background Art

[0002] During the winding production process of the coreless motor coil, the copper wire often needs to be fixed or loosened. Currently, the fixing or loosening of the copper wire is mostly controlled manually, which has low production efficiency and greatly increases costs. In addition, when the existing coreless motor coil is wound, its winding position is relatively fixed, which can easily cause the wire on the winding tool to bulge or deviate from the winding track, thereby causing uneven coil winding, loose turns, and irregular arrangement, affecting its winding quality; finally, when winding a longer coiled wire coil, it is inconvenient to comb the running wire, which causes the wire to be subjected to the stress of the winding during the winding process, and its excessive length causes entanglement and knotting, affecting its winding efficiency.

[0003] Chinese utility model patent publication number CN217933463U discloses a wire guiding and tensioning device for winding high-voltage transformer coils. The device includes a support, a wire inlet tube arranged on one side of the support vertically aligned with the wire reel, a wire outlet tube arranged on the other side of the support horizontally aligned with the coil mold, a first tensioning member arranged on the support surface vertically aligned with the wire inlet tube, a second tensioning member arranged on the support surface horizontally aligned with the wire outlet tube, and a fixed pulley assembly disposed between the first and second tensioning members. The wire exits the reel and passes through the wire inlet tube, the first tensioning member, the fixed pulley assembly, the second tensioning member, and the wire outlet tube in sequence before entering the coil mold for winding. This technical solution guides the wire from the reel to the coil mold, uses a fixed pulley to change the winding direction, and provides two tensioning members to effectively control wire tension, prevent misalignment of the turns during coil winding, effectively control the radial dimension of the coil after winding, ensure a compact coil, and improve coil winding quality.

[0004] However, the above technical solution has a complex structure and occupies a large space. Especially in application scenarios with high precision requirements, such as robot joints, precision machine tools, etc., the device cannot maintain stable performance and precision during long-term operation, and the reliability and service life of the equipment need to be improved. Summary of the Invention

[0005] In view of this, in order to solve the defects of the above-mentioned technology, the present invention provides a wire conveying device and method for manufacturing hollow cup motor coils.

[0006] The technical solutions of the present invention are as follows: A first object of the present invention is to provide a wire conveying device for manufacturing coreless motor coils, comprising: Drive components; a harmonic reducer, one end of which is drivingly connected to the drive assembly; The wire outlet mechanism includes a first wire mechanism rotatably mounted on the other end of the harmonic reducer, a wire clamping mechanism mounted in the middle of the first wire mechanism, and a second wire mechanism mounted at the bottom of the first wire mechanism; The first wire mechanism includes a rocker arm installed on the side of the harmonic reducer away from the drive assembly, a perforated tube passing through the harmonic reducer and the rocker arm, and two first outlet structures installed on the rocker arm. A wire is vertically passed between the two first outlet structures on one side close to each other. The bottom end of the wire enters the second wire mechanism through the wire clamping mechanism and is led out. The driving assembly drives the harmonic reducer to operate and drives the rocker arm to swing within a certain angle range, thereby limiting the guide combing of the wire between the two first outlet structures; the wire clamping mechanism is used to clamp and position the wire so that the wire is always in a vertical state.

[0007] Optionally, the first wire-outlet structure includes a jumper wheel support adjustably mounted on the rocker arm on a side away from the harmonic reducer and two wire-outlet guide pin assemblies sleeved on the jumper wheel support, the jumper wheel support includes a first support body connected to the rocker arm and a second support body connected in reverse parallel to the first support body, the first support body is provided with an adjustment slot, and an adjustment bolt fixedly connected to the rocker arm is installed in the adjustment slot; Each of the outlet guide needle assemblies includes a first cylindrical head connected horizontally and vertically to the rocker arm, and a first wire pulley and a first nut sleeved on the first cylindrical head, wherein the first wire pulley is located between the nut of the first cylindrical head and the first nut, and the first cylindrical head is located between the first nut and the rocker arm and sleeved on a side of the second support body away from the first support body; The two first wire wheels are closely attached to each other and have a gap therebetween for accommodating the wire to pass through.

[0008] Optionally, the wire clamping mechanism includes an L-shaped base horizontally connected to the rocker arm and located below the wire guide needle assembly, a clamping cylinder installed on one side of the L-shaped base, and a pressure head connected to the output shaft of the clamping cylinder. A pressure head seat is provided on the side wall of the L-shaped base facing the pressure head, and the wire guided out through the two first wire wheels is passed between the pressure head seat and the pressure head.

[0009] Optionally, the second wire mechanism includes a guide rod chuck vertically connected to the rocker arm and located below the wire clamping mechanism, and a tungsten steel wire nozzle vertically installed on the side of the guide rod chuck away from the wire clamping mechanism, and the wire output through the wire clamping mechanism is passed through the tungsten steel wire nozzle.

[0010] Optionally, the harmonic reducer includes a harmonic bracket, a transmission shaft horizontally inserted into the harmonic bracket, an input end mounted on one side of the harmonic bracket and sleeved on the transmission shaft, an output end mounted on the other side of the harmonic bracket and sleeved on the transmission shaft, and a cross roller bearing sleeved on the transmission shaft and located in the harmonic bracket, one end of the cross roller bearing being connected to the input end, and the other end being connected to the output end; The perforated tube includes a tube body and a tube flange that are coaxially and integrally connected. The tube body is inserted into the central circular hole of the transmission shaft, and the tube flange is connected to an end face of the rocker arm away from the output end.

[0011] Optionally, the transmission shaft includes a first shaft section, a second shaft section and a third shaft section that are coaxially connected in sequence; The input end includes a first input end cover mounted on the first shaft segment and a flexible pulley sleeved on the second shaft segment. The first input end cover is supported on the first shaft segment via a second deep groove ball bearing. A first shaft seal and a spring washer sleeved on the first shaft segment are further provided within the first input end cover, with the ends of the spring washer respectively in close contact with the end surfaces of the first shaft seal and the second deep groove ball bearing. The first input end cover and the flexible pulley are fixedly connected by a plurality of horizontally arranged and evenly distributed first countersunk bolts. The output end includes a first bearing seat mounted on the third shaft segment and a second shaft disc sleeved on the second shaft segment. The first bearing seat is supported on the third shaft segment through a second deep groove ball bearing. The second shaft disc is sleeved on a side of the second shaft segment close to the first bearing seat, and the first bearing seat is supported on the third shaft segment through a fourth deep groove ball bearing and a second shaft seal. The first bearing seat and the second shaft disc are fixedly connected by a number of horizontally arranged and evenly distributed second countersunk bolts.

[0012] Optionally, a first sealing ring groove is provided on an end surface of the first input end cover close to the flexible spline, and a first sealing ring is filled in the first sealing ring groove; a second sealing ring groove is provided on an end surface of the cross roller bearing close to the flexible spline, and a second sealing ring is filled in the second sealing ring groove; A third sealing ring groove is provided on the end face of the second shaft disc close to the first bearing seat, and the third sealing ring groove is filled with a third sealing ring. A fourth sealing ring groove is provided on the end face of the second shaft disc close to the cross roller bearing, and the fourth sealing ring groove is filled with a fourth sealing ring.

[0013] Optionally, the flexible spline includes a flange tightly attached to an end surface of the cross roller bearing on a side close to the first input end cover, and a pipe section coaxially and integrally connected to a side of the flange away from the first input end cover, wherein the outer diameter of the flange is equal to that of the cross roller bearing, and the flange and the cross roller bearing are adapted to be mounted within an inner stopper of the first input end cover; The pipe section includes a first pipe section, a first tapered pipe section and a second pipe section that are coaxially connected in sequence, and the outer diameter of the second pipe section is supported on the inner circumference of the second shaft disc. The inner circumference of the second pipe section supports a third deep groove ball bearing sleeved on the second shaft section, and the second shaft section is provided with a first shaft shoulder that is closely attached to the end face of the third deep groove ball bearing.

[0014] Optionally, the driving assembly includes a first driving motor and a gear transmission assembly, the first driving motor is fixedly installed through a motor bracket, and the first driving motor is suitable for driving the gear transmission assembly to transmit; The gear transmission assembly includes a first synchronous pulley mounted on the output shaft of the first drive motor, a second synchronous pulley mounted on the end of the transmission shaft extending from the input end, and a first synchronous belt meshingly connected between the first synchronous pulley and the second synchronous pulley; The gear transmission assembly is suitable for driving the transmission shaft of the harmonic reducer to rotate.

[0015] A second object of the present invention is to provide a wire conveying method for manufacturing a coreless motor coil, using the wire conveying device for manufacturing a coreless motor coil as described above, the wire conveying method comprising the following steps: Step 1: The driving component works to transmit power to the harmonic reducer, which controls the swing angle of the rocker arm; Step 2: Install the two first wire outlet structures on the rocker arm so that the first wire pulleys of the two first wire outlet structures fit together and the gap between the two first wire pulleys allows the wire to pass vertically downward; Step 3: When the winding is in normal operation, the two first wire wheels guide the wire vertically downward through the wire clamping mechanism and the second wire mechanism in sequence, and the wire guided out of the second wire mechanism enters the winding tooling; Step 4: When the winding operation stops, the wire clamping mechanism is activated to clamp the wire vertically.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects: 1. The wire conveying device for manufacturing hollow cup motor coils in the present invention includes a drive component, a harmonic reducer and a wire output mechanism. The drive component starts working as the power source of the entire device. It transmits power to one end of the harmonic reducer to provide power support for subsequent mechanical movement; the harmonic reducer starts working after receiving the power from the drive component. Its main function is to decelerate and increase the torque of the input power, and at the same time convert the rotational motion into a form suitable for subsequent mechanism movement; the harmonic reducer uses its unique transmission principle to enable the output end (one end connected to the first wire mechanism) to generate stable swinging motion. The harmonic reducer drives the rocker arm to swing within a certain angle range. A perforated tube is installed on the rocker arm. The perforated tube is penetrated through the harmonic reducer and the rocker arm, which can ensure the structural stability and reliability of the rocker arm during the swinging process. At the same time, the two first outgoing wire structures are installed on the rocker arm. As the rocker arm swings, the relative positions between the first outgoing wire structures will also change. The wire passes vertically between the two first outgoing wire structures that are close to each other. During the swinging of the rocker arm, the first outgoing wire structure guides and combs the wire, so that the wire remains in a relatively regular state during transportation, avoiding undesirable phenomena such as wire entanglement and twisting. After the wire is clamped and positioned by the line clamping mechanism, it enters the second wire mechanism. The second wire mechanism is installed at the bottom of the first wire mechanism. Its main function is to further guide the wire output so that the wire can be transported according to the predetermined path and direction. Therefore, through the cooperation of the drive component and the harmonic reducer, stable and reliable power can be provided for wire transportation. The swinging output characteristics of the harmonic reducer enable the rocker arm of the first wire mechanism to swing regularly within a certain angle range, thereby effectively combing and guiding the wire. This orderly swinging motion can ensure the continuity and stability of the wires during transportation, thereby improving the efficiency of wire transportation. The close cooperation between the two first outlet structures can comb the wires during the swing of the rocker arm. The vertical passage of the wires between the two first outlet structures can avoid problems such as crossing and entanglement of the wires during transportation, so that the wires always remain neat and orderly. The setting of the wire clamping mechanism can ensure that the wires are always in a vertical state. During the wire transportation process, maintaining the vertical state can prevent the wires from rubbing or colliding with other components due to deviation or shaking, reducing the risk of wire damage. At the same time, precise positioning is also conducive to the smooth progress of subsequent wire processing, installation or connection operations, improving the accuracy and quality of the entire production or construction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 1. A schematic structural diagram of a wire conveying device for manufacturing coreless motor coils according to an embodiment of the present invention; Figure 2Schematic side view of the structure of a wire conveying device for manufacturing coreless motor coils according to an embodiment of the present invention; Figure 3 Schematic diagram of the assembly structure of the harmonic reducer and the outlet mechanism in an embodiment of the present invention; Figure 4 Schematic diagram of the decomposed structure of the harmonic reducer and the outlet mechanism in an embodiment of the present invention; Figure 5 Schematic diagram of the cross-sectional structure of the harmonic reducer in an embodiment of the present invention; Figure 6 Schematic diagram of the cross-sectional structure of the input end in an embodiment of the present invention.

[0018] Description of reference numerals: 1-Drive assembly; 11-first drive motor; 111-motor bracket; 12-gear transmission assembly; 121-first synchronous pulley; 122-first synchronous belt; 123-second synchronous pulley; 2-wire; 3- Harmonic reducer; 31-input terminal; 311-first input end cover; 3111-first sealing ring groove; 3112-first sealing ring; 312-flexible wheel; 3121-flange; 3122-pipe section; 31221-first pipe section; 31222-first conical pipe section; 31223-second pipe section; 313-first countersunk bolt; 32-cross roller bearing; 321-second sealing ring groove; 322-second sealing ring; 33-output terminal; 331-first bearing seat; 332-second shaft disc; 3321-third sealing ring groove; 3322-third sealing ring; 3323-fourth sealing ring groove; 3324-fourth sealing ring; 333-second countersunk bolt; 34- transmission shaft; 341-first shaft section; 3411-first shaft seal; 3412-second deep groove ball bearing; 3413-spring washer; 342-second shaft section; 3421-first shaft shoulder; 3422-third deep groove ball bearing; 343-third shaft section; 3431-fourth deep groove ball bearing; 3432-second shaft seal; 35-Harmonic bracket; 4- outlet mechanism; 41-first guide wire mechanism; 411-perforated pipe; 4111-pipe body; 4112-pipe flange; 412-rocker arm; 413-first outlet structure; 4131-jumper wheel support; 41311-first support body; 413111-adjustment slot; 413112-adjustment bolt; 41312-second support body; 4132-outlet guide pin assembly; 41321-first cylindrical head; 41322-first wire pulley; 41323-first nut; 42-wire clamping mechanism; 421-L-type base; 422-clamping cylinder; 423-pressing head; 43-second guide wire mechanism; 431-guide rod chuck; 432-tungsten steel wire nozzle. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention. In the description of the present invention, it should be noted that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components; wireless connections or wired connections. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0020] Figure 1-5 The figure shows a wire conveying device for manufacturing hollow cup motor coils provided by an embodiment of the present invention, wherein the wire conveying device includes a drive assembly 1, a harmonic reducer 3 and a wire outlet mechanism 4, wherein: One end of the harmonic reducer 3 is drivingly connected to the driving component 1; The wire outlet mechanism 4 includes a first wire guide mechanism 41, a wire clamping mechanism 42, and a second wire guide mechanism 43. The first wire guide mechanism 41 is rotatably mounted on the other end of the harmonic reducer 3, the wire clamping mechanism 42 is mounted in the middle of the first wire guide mechanism 41, and the second wire guide mechanism 43 is mounted at the bottom of the first wire guide mechanism 41. The first wire mechanism 41 includes a perforated tube 411, a rocker arm 412 and a first wire outlet structure 413. The rocker arm 412 is installed on the side of the harmonic reducer 3 away from the drive assembly 1. The perforated tube 411 is inserted through the harmonic reducer 3 and the rocker arm 412. Two first wire outlet structures 413 are installed on the rocker arm 412. A wire 2 is vertically inserted between the two first wire outlet structures 413 on one side close to each other. The bottom end of the wire 2 enters the second wire mechanism 43 through the wire clamping mechanism 42 and is led out. The driving component 1 drives the harmonic reducer 3 to work and drives the rocker arm 412 to swing within a certain angle range, thereby limiting the wire 2 to be guided and combed between the two first outlet structures 413; the wire clamping mechanism 42 is used to clamp and position the wire 2 so that the wire 2 is always in a vertical state.

[0021] In the technical solution of the embodiment of the present invention, the drive assembly 1 begins operation as the power source for the entire device, transmitting power to one end of the harmonic reducer 3 to provide power support for subsequent mechanical movement. Upon receiving power from the drive assembly 1, the harmonic reducer 3 begins operation, primarily decelerating and increasing the input power while converting rotational motion into a form suitable for subsequent mechanical movement. Harmonic reducer 3 utilizes its unique transmission principle to enable its output end (the end connected to the first conductor mechanism 41) to generate stable swinging motion. Harmonic reducer 3 drives rocker arm 412 to swing within a certain angle range. Rocker arm 412 is mounted with a perforated tube 411, which penetrates between the harmonic reducer 3 and rocker arm 412, ensuring structural stability and reliability during the swinging process. Furthermore, two first outgoing wire structures 413 are mounted on rocker arm 412. As rocker arm 412 swings, the relative position of the first outgoing wire structures 413 changes. The conductor 2 passes vertically between the two closely adjacent first outgoing wire structures 413. As the swing arm 412 swings, the first wire-outlet structure 413 guides and organizes the wires 2, keeping them relatively straight during transport and preventing them from becoming tangled or twisted. After being clamped and positioned by the wire clamping mechanism 42, the wires 2 enter the second wire-outlet mechanism 43. The second wire-outlet mechanism 43 is mounted at the bottom of the first wire-outlet mechanism 41 and serves to further guide the output of the wires 2, ensuring they are transported along a predetermined path and direction.

[0022] Thus, the cooperation between the drive assembly 1 and the harmonic reducer 3 provides stable and reliable power for wire transportation. The oscillating output characteristics of the harmonic reducer enable the swing arm 412 of the first wire guide mechanism 41 to swing regularly within a certain angle range, effectively organizing and guiding the wires. This orderly swinging motion ensures continuity and stability during wire transportation, improving wire transportation efficiency.

[0023] The tight fit between the two first outlet structures 413 allows for the alignment of the wires 2 during the swinging motion of the rocker arm 412. The vertical passage of the wires 2 between the two first outlet structures prevents crossover and entanglement during transport, ensuring the wires remain neatly organized. This is crucial for ensuring wire quality and subsequent performance, particularly in applications requiring high wire alignment, such as wire and cable manufacturing or power system wiring installation.

[0024] The provision of the wire clamping mechanism 42 ensures that the conductor 2 remains vertical. Maintaining this vertical position during the transport of the conductor 2 prevents the conductor from rubbing or colliding with other components due to deviation or shaking, reducing the risk of conductor damage. Furthermore, precise positioning facilitates subsequent conductor processing, installation, or connection operations, improving the accuracy and quality of the entire production or construction process.

[0025] More specifically, see Figure 2 As shown, the first outlet structure 413 includes a jumper wheel support 4131 and two outlet guide pin assemblies 4132. The jumper wheel support 4131 is adjustably mounted on the side of the rocker arm 412 away from the harmonic reducer 3. The two outlet guide pin assemblies 4132 are sleeved on the jumper wheel support 4131, wherein: The jumper wheel support 4131 includes a first support body 41311 and a second support body 41312. The first support body 41311 is connected to the rocker arm 412, and the second support body 41312 is connected to the first support body 41311 in reverse parallel. The first support body 41311 is provided with an adjustment groove 413111, and an adjustment bolt 413112 fixedly connected to the rocker arm 412 is installed in the adjustment groove 413111.

[0026] Each wire guide needle assembly 4132 includes a first cylindrical head 41321, a first wire pulley 41322 and a first nut 41323. The first cylindrical head 41321 is horizontally and vertically connected to the rocker arm 412. The first wire pulley 41322 and the first nut 41323 are sleeved on the first cylindrical head 41321. The first wire pulley 41322 is located between the nut of the first cylindrical head 41321 and the first nut 41323. The first cylindrical head 41321 is located between the first nut 41323 and the rocker arm 412 and is also sleeved on the side of the second support body 41312 away from the first support body 41311; the two first wire pulleys 41322 are tightly attached to each other and have a gap in the middle to accommodate the wire 2 passing through.

[0027] In the technical solution of the embodiment of the present invention, the jumper wheel support 4131 can be adjustably installed on the side of the rocker arm 412 away from the harmonic reducer 3. Specifically, the first support body 41311 is connected to the rocker arm 412, providing an installation basis for the wire guide needle assembly. The second support body 41312 is connected to the first support body 41311 in reverse parallel. This reverse parallel connection method provides a stable structural foundation for the subsequent installation of the wire guide needle assembly 4132 and the guidance of the wire 2. An adjustment groove 413111 is provided on the first support body 41311, and an adjustment bolt 413112 fixedly connected to the rocker arm 412 is installed in the adjustment groove 413111. By adjusting the position of the bolt 413112 in the adjustment groove 413111, the position of the jumper wheel support 4131 on the rocker arm 412 can be adjusted to adapt to wires with different diameters or different conveying path requirements.

[0028] Each outlet guide pin assembly 4132 includes a first cylindrical head 41321, a first wire pulley 41322, and a first nut 41323. The first cylindrical head 41321 is vertically and horizontally connected to the rocker arm 412. The first wire pulley 41322 and the first nut 41323 are sleeved onto the first cylindrical head 41321, with the first wire pulley 41322 positioned between the nut of the first cylindrical head 41321 and the first nut 41323. This installation allows the first wire pulley 41322 to move within a certain range. The tightness of the first wire pulley 41322 can be adjusted by tightening or loosening the first nut 41323 to accommodate the friction requirements of different wires.

[0029] The first cylindrical head 41321 is located between the first nut 41323 and the rocker arm 412 and is also sleeved on the side of the second support body 41312 away from the first support body 41311. This design ensures a tight fit and stable connection between the wire guide needle assembly 4132 and the jumper wheel support 4131.

[0030] After the two wire guide pin assemblies 4132 are installed, the two first wire pulleys 41322 are tightly attached to each other, forming a gap in between to accommodate the wire 2. The size of this gap can be precisely controlled by adjusting the position and tightness of the first wire pulleys 41322 to ensure that the wire 2 can pass smoothly and be well guided.

[0031] The adjustable mounting design of the jumper wheel support 4131 thus allows for flexible adjustment based on the actual wire diameter and transport path requirements. By adjusting the slot 413111 and the adjusting bolt 413112, the position of the jumper wheel support 4131 can be varied, thereby precisely controlling the gap between the two first wire wheels 41322. This adjustability allows the device to accommodate a variety of wires of varying specifications, enhancing its versatility and adaptability.

[0032] The tightness of the first wire pulley 41322 in the wire guide assembly 4132 can be adjusted via the first nut 41323, further enhancing the control over the wire guiding accuracy. The friction between the wire pulley and the wire can be adjusted according to the material of the wire and the conveying speed, ensuring that the wire can move smoothly and maintain a stable position and direction during the conveying process. The gap formed between the two first wire pulleys 41322 that are tightly attached to each other provides a stable conveying channel for the wire 2. When the wire passes through this gap, it is constrained and guided by the wire pulley and can maintain linear motion, avoiding problems such as deviation, swinging, or twisting of the wire that may occur during the conveying process.

[0033] The design and installation of the wire pulley ensures good contact between the wire and the device during transport, reducing frictional damage between the wire and the device. The rotation of the wire pulley reduces wear on the wire surface, extending the life of the wire. It also helps reduce wear on the device itself, improving its reliability and durability.

[0034] This wire delivery structure effectively improves wire conveying efficiency through precise wire guidance and stable conveying. It reduces production interruptions and failures caused by wire deviation or entanglement, ensuring continuous and stable production. During wire conveying, effective guidance and protection help maintain wire quality and performance. The wire remains undamaged during conveying, ensuring it meets the requirements of subsequent processing or use, thereby improving overall product quality and yield.

[0035] More specifically, see Figure 2 As shown, the wire clamping mechanism 42 includes an L-shaped base 421, a clamping cylinder 422, and a pressure head 423. The L-shaped base 421 is horizontally connected to the rocker arm 412 and is located below the outlet wire guide pin assembly 4132. This installation position enables the wire clamping mechanism 42 to clamp the wire 2 in a timely manner after the wire 2 is guided by the outlet wire guide pin assembly 4132, thereby ensuring the stability of the wire 2 during subsequent transportation. The clamping cylinder 422 is installed on one side of the L-shaped base 421 and serves as the power source for the clamping action. The pressure head 423 is connected to the output shaft of the clamping cylinder 422. When the clamping cylinder 422 is working, it can drive the pressure head 423 to move linearly. A pressure head seat is provided on the side wall of the L-shaped base 421 facing the pressure head 423, and the wire 2 guided out by two first wire wheels 41322 is passed between the pressure head seat and the pressure head 423.

[0036] When the wire conveying device used to manufacture coreless motor coils is in operation, wire 2 is guided by the outlet guide pin assembly 4132, passing through the gap between the two first wire pulleys 41322, and then guided to the wire clamping mechanism 42. Upon receiving a control signal, the clamping cylinder 422 activates, and its output shaft drives the ram 423 toward the ram seat. As the ram 423 gradually approaches the ram seat, it clamps the wire 2 between them, maintaining a vertical position and securing it in place.

[0037] Clamping cylinder 422 provides a stable clamping force, quickly and accurately clamping wire 2 between pressure head 423 and the pressure head seat. Compared to other mechanical clamping methods, this pneumatic clamping method offers advantages such as adjustable clamping force, fast response speed, and simple operation. It effectively ensures the stability and positioning accuracy of the wire during transportation. The design of pressure head 423 and pressure head seat ensures that the wire is firmly clamped, preventing displacement, shaking, or skew during subsequent transportation or processing, thus ensuring the reliability and stability of the entire wire transportation system.

[0038] The wire clamping mechanism 42 is mounted below the outlet wire guide pin assembly 4132 and works closely with it to ensure that the wire is accurately positioned after being guided. This layout design facilitates precise wire delivery and positioning, providing an accurate starting point and reference for subsequent wire processing or installation operations. By precisely controlling the stroke and clamping position of the clamping cylinder 422, the length and position of the wire can be precisely controlled, meeting the wire positioning accuracy requirements of different application scenarios.

[0039] The wire clamping mechanism 42 utilizes an L-shaped base 421 connected to the rocker arm 412, resulting in a compact structure and minimal space consumption. This design allows the wire clamping mechanism 42 to be easily integrated into the wire conveying apparatus used to manufacture coreless motor coils, allowing it to work in conjunction with other components without significantly disrupting the overall layout and structure of the apparatus.

[0040] More specifically, see Figure 2 As shown, the second wire mechanism 43 includes a guide rod chuck 431 and a tungsten steel wire nozzle 432. The guide rod chuck 431 is vertically connected to the rocker arm 412 and is located below the wire clamping mechanism 42. The tungsten steel wire nozzle 432 is vertically installed on the side of the guide rod chuck 431 away from the wire clamping mechanism 42. The wire 2 output from the warp clamping mechanism 42 is passed through the tungsten steel wire nozzle 432.

[0041] In the specific technical solution of the present invention, the guide rod chuck 431 of the second wire mechanism 43 is vertically connected to the rocker arm 412 and is located below the wire clamping mechanism 42. This vertical installation method ensures that the wire 2 can smoothly enter the second wire mechanism 43 for further guidance and transportation after passing through the wire clamping mechanism 42. The tungsten steel wire nozzle 432 is vertically installed on the side of the guide rod chuck 431 away from the wire clamping mechanism 42. The installation position and direction of the tungsten steel wire nozzle 432 match the guide rod chuck 431 to form a complete wire transportation channel. The wire 2 output from the wire clamping mechanism 42 passes through the inside of the tungsten steel wire nozzle 432, and the tungsten steel wire nozzle 432 further guides and constrains the wire to ensure that the wire is transported along the predetermined path.

[0042] When the wire conveying device for manufacturing hollow cup motor coils is working, the wire 2 is guided by the wire outlet mechanism 4, and then passes through the guiding and combing of the wire outlet guide needle assembly 4132 and the clamping and positioning of the wire clamping mechanism 42, and then enters the second wire mechanism 43.

[0043] In the second wire mechanism 43, the wire 2 passes through the tungsten steel wire nozzle 432, and the inner wall of the tungsten steel wire nozzle 432 is in close contact with the wire 2, which performs the final guidance and shaping of the wire to ensure that the wire is output to the outside of the device in the correct posture and direction.

[0044] Thus, the combination of the guide rod chuck 431 and the tungsten steel wire nozzle 432 provides a precise guide path for the wire 2. The vertical installation of the guide rod chuck 431 and the precise alignment of the tungsten steel wire nozzle 432 ensure that the wire will not deviate or skew during transportation, thereby improving the accuracy and stability of wire transportation.

[0045] The high hardness and wear resistance of the tungsten steel wire nozzle 432 enable it to maintain good guiding performance for a long time. Even in the process of high-speed or long-term wire transportation, it can ensure the accurate output of the wire and meet the requirements of high-precision processing or installation.

[0046] The smooth, wear-resistant inner wall of the tungsten steel nozzle 432 reduces friction and wear on the wire during transport. This design helps preserve the wire's surface quality and prevents scratches, abrasion, and other damage from excessive friction with the nozzle's inner wall, thereby extending the wire's service life.

[0047] The close fit between the guide rod chuck 431 and the tungsten steel wire nozzle 432 can prevent the wire from loosening or swinging during transportation, further reducing the possibility of collision or friction between the wire and other components, and providing good protection for the wire.

[0048] Guide rod chuck 431 provides stable support for tungsten carbide nozzle 432, ensuring it maintains a fixed position and posture during wire conveyance. This stable support structure helps improve the reliability and stability of the entire wire conveyance system, preventing abnormal wire conveyance caused by changes in nozzle position.

[0049] The vertical installation of the tungsten steel wire nozzle 432 is consistent with the direction of wire transportation, which can effectively support the wire and prevent the wire from sagging or deflecting under the action of gravity or other external forces, ensuring that the wire always maintains linear movement, thereby improving the quality and stability of wire transportation.

[0050] More specifically, see Figure 2 As shown, the harmonic reducer 3 includes a harmonic support 35, a transmission shaft 34, an input end 31, an output end 33 and a cross roller bearing 32, wherein: The drive shaft 34 runs horizontally through the harmonic support 35 and serves as the core transmission component of the entire harmonic reducer. The input end 31 is mounted on one side of the harmonic support 35 and sleeved onto the drive shaft 34. It is responsible for receiving power input and transmitting it to the drive shaft 34. The output end 33 is mounted on the other side of the harmonic support 35 and sleeved onto the drive shaft 34, which is used to output the reduced power to an external mechanism. A cross roller bearing 32 sleeves on the drive shaft 34 and is located within the harmonic support 35. One end of the cross roller bearing 32 is connected to the input end 31, and the other end is connected to the output end 33, providing support and torque transmission.

[0051] In the specific technical solution of the present invention, power is input from the input end 31, transmitted to the transmission shaft 34 through the structure of the input end 31, and the transmission shaft 34 drives the cross roller bearing 32 to rotate. The cross roller bearing 32 transmits the torque to the output end 33, while achieving a deceleration effect. The output end 33 transmits the decelerated power to an external mechanism, completing the power transmission and deceleration functions.

[0052] Thus, the harmonic reducer can achieve efficient power transmission and precise reduction ratio through the coordinated work of the input end 31, the transmission shaft 34, the cross roller bearing 32 and the output end 33. This structural design enables the harmonic reducer to have high transmission efficiency and torque carrying capacity, and can meet the power transmission and reduction requirements in various industrial applications. The transmission shaft 34 is horizontally inserted into the harmonic bracket 35, and the input end 31 and the output end 33 are respectively installed on both sides of the harmonic bracket 35 and sleeved on the transmission shaft 34, making the entire harmonic reducer compact and taking up little space. This design is conducive to integrating complex transmission systems in a limited space and improving the space utilization of the equipment.

[0053] The use of cross roller bearings 32 improves the rigidity and precision retention of the transmission system. For example, cross roller bearings 32 effectively transmit torque and reduce friction and wear during rotation, ensuring that the harmonic reducer maintains stable performance and precision during long-term operation, thereby improving the reliability and service life of the device. The design of the harmonic reducer 3 enables it to transmit high torque within a relatively small volume, resulting in a high torque density. This allows the device to withstand greater loads without increasing excessive volume and weight, meeting high load-bearing capacity requirements.

[0054] Since the harmonic reducer 3 has high rotational accuracy, the precise matching between the input end 31, the transmission shaft 34, the cross roller bearing 32 and the output end 33 can reduce errors and clearances during the transmission process, ensure the rotational accuracy of the output end 33, and is suitable for application scenarios with high precision requirements, such as robot joints, precision machine tools, etc.

[0055] The smooth operation of the cross roller bearing 32 ensures that the harmonic reducer 3 has good motion stability when transmitting power. This stability can reduce vibration and noise during operation, improve the operating quality and stability of the equipment, and extend the service life of the equipment.

[0056] More specifically, see Figure 2 As shown, the transmission shaft 34 includes a first shaft section 341, a second shaft section 342 and a third shaft section 343 that are coaxially connected in sequence to form an integral transmission shaft, ensuring that power can be transmitted in sequence along the axial direction. The input end 31 includes a first input end cover 311 and a flexspline 312. The first input end cover 311 is mounted on the first shaft segment 341 and supported on the first shaft segment 341 by a second deep-groove ball bearing 3412, providing rotational support and ensuring stable rotation of the input end. The flexspline 312 is sleeved on the second shaft segment 342 and fixedly connected to the first input end cover 311 and the flexspline 312 by a number of horizontally arranged and evenly distributed first countersunk bolts 313, transmitting the input power to the transmission shaft 34. The first input end cover 311 also houses a first shaft seal 3411 and a spring washer 3413, which sleeve on the first shaft segment 341. The ends of the spring washer 3413, respectively, are in close contact with the end faces of the first shaft seal 3411 and the second deep-groove ball bearing 3412, providing axial preload to prevent loosening.

[0057] Thus, power is input from the outside to the first input end cover 311, and is transmitted to the flexible spline 312 through the fixed connection of the first countersunk bolt 313. The flexible spline 312 transmits the power to the second shaft section 342, thereby driving the entire transmission shaft 34 to rotate. The rotation of the transmission shaft 34 is transmitted to the output end 33 through the cross roller bearing 32, thereby realizing power output.

[0058] The first input end cap 311 and the flexspline 312 are securely connected by first countersunk bolts 313, ensuring stable power transmission. The horizontal placement and even distribution of the countersunk bolts ensure uniform connection force and a more secure connection, preventing vibration and loosening during power transmission. The second deep-groove ball bearing 3412 provides rotational support for the first input end cap 311, ensuring smooth rotation of the input end 311 during power transmission, reducing friction loss and improving transmission efficiency.

[0059] The first shaft seal 3411 effectively prevents foreign matter from entering the interior of the transmission shaft 34 while also preventing internal lubricant from leaking, keeping the transmission system clean and well lubricated. This helps reduce component wear and the risk of failure due to foreign matter, thereby extending the service life of the equipment.

[0060] The installation of the spring washer 3413 further enhances the axial preload force, ensuring that the first shaft seal 3411 and the second deep groove ball bearing 3412 maintain a close fit during long-term operation, thereby improving the stability and reliability of the sealing effect.

[0061] The horizontal placement and even distribution of the first countersunk bolts 313 evenly distribute the connecting force between the first input end cover 311 and the flexspline 312, making the connection more stable. The countersunk bolt design creates a flat surface at the connection point, preventing protruding parts from interfering with or damaging other components, while also facilitating installation and removal.

[0062] The two ends of the spring washer 3413 are respectively tightly attached to the end faces of the first shaft seal 3411 and the second deep groove ball bearing 3412, providing continuous axial preload to prevent axial movement or loosening of components due to vibration or axial force during transmission, thereby ensuring the stability and reliability of the entire input end structure.

[0063] Finally, the elastic properties of the flexible wheel 312 enable the transmission system to adapt to a certain degree of axial and radial deviation, thereby improving the adaptability and flexibility of the entire system, being able to better cope with the transmission requirements under different working conditions, and reducing transmission problems caused by installation errors or deformation during operation.

[0064] More specifically, see Figure 2 As shown, the output end 33 includes a first bearing seat 331 and a second shaft disc 332, wherein: The first bearing seat 331 is installed on the third shaft section 343, the second shaft disc 332 is sleeved on the second shaft section 342, the first bearing seat 331 is supported on the third shaft section 343 through the second deep groove ball bearing 3412, the second shaft disc 332 is sleeved on the side of the second shaft section 342 close to the first bearing seat 331, and the first bearing seat 331 is supported on the third shaft section 343 through the fourth deep groove ball bearing 3431 and the second shaft seal 3432. The first bearing seat 331 and the second shaft disc 332 are fixedly connected by a number of horizontally arranged and evenly distributed second countersunk bolts 333.

[0065] Specifically, first, install the first bearing seat 331 on the third shaft section 343, and use the second deep groove ball bearing 3412 to support the first bearing seat 331 on the third shaft section 343, to ensure that the bearing seat and the shaft section have good rotational matching performance, and to ensure the smoothness of the subsequent transmission process; then, the second shaft disc 332 is sleeved on the second shaft section 342 near the first bearing seat 331, to facilitate the subsequent connection and fixation between the two and the coordinated operation of the overall structure, so as to prepare for the effective transmission of torque; in addition to being supported by the second deep groove ball bearing 3412, the first bearing seat 331 is also supported by the fourth deep groove ball bearing 3412. The bearing 3431 and the second shaft seal 3432 further strengthen the support for the third shaft section 343. The fourth deep groove ball bearing 3431 can enhance the stability and load-bearing capacity of the support, while the second shaft seal 3432 can prevent the entry of external impurities and the leakage of internal lubricant, thereby ensuring the working environment and service life of the bearing; finally, a number of horizontally arranged and evenly distributed second countersunk bolts 333 are used to fix the first bearing seat 331 and the second shaft disc 332 together. The evenly distributed countersunk bolts can ensure the reliability and stability of the connection, so that the two are closely combined to form a whole, and jointly bear the load and torque transmission in subsequent work.

[0066] Preferably, see Figure 2 As shown, a first sealing ring groove 3111 is provided on an end surface of the first input end cover 311 close to the flexible spline 312, and a first sealing ring 3112 is filled in the first sealing ring groove 3111. A second sealing ring groove 321 is provided on an end surface of the cross roller bearing 32 close to the flexible spline 312, and a second sealing ring 322 is filled in the second sealing ring groove 321.

[0067] In the technical solution of the present invention, a first sealing ring groove 3111 is machined on the end surface of the first input end cover 311 near the flexspline 312, into which the first sealing ring 3112 is inserted. Similarly, a second sealing ring groove 321 is machined on the end surface of the cross roller bearing 32 near the flexspline 312, into which the second sealing ring 322 is inserted. The machining of these two sealing ring grooves requires guaranteed dimensional and shape accuracy to ensure that the sealing rings fit tightly and provide a good sealing effect. Filling the sealing rings requires ensuring that they are firmly fixed in the grooves and compressed to an appropriate degree. After the sealing rings are installed, the first input end cover 311 equipped with the first sealing ring 3112 and other related components are assembled with the flexible spline 312 according to the design requirements. At the same time, the cross roller bearing 32 equipped with the second sealing ring 322 is also installed in conjunction with the flexible spline 312. In this way, the first sealing ring 3112 and the second sealing ring 322 can form effective sealing contact with the flexible spline 312 and other components at their respective positions, thereby establishing a sealed protection.

[0068] A third sealing ring groove 3321 is provided on one end face of the second shaft disc 332 close to the first bearing seat 331, and the third sealing ring groove 3321 is filled with a third sealing ring 3322. A fourth sealing ring groove 3323 is provided on one end face of the second shaft disc 332 close to the cross roller bearing 32, and the fourth sealing ring groove 3323 is filled with a fourth sealing ring 3324.

[0069] In the technical solution of the present invention, a third sealing ring groove 3321 is machined on the end surface of the second shaft disc 332 near the first bearing seat 331, into which the third sealing ring 3322 is inserted. Similarly, a fourth sealing ring groove 3323 is machined on the end surface of the second shaft disc 332 near the cross roller bearing 32, into which the fourth sealing ring 3324 is inserted. The machining of the sealing ring groove requires guaranteed dimensional and shape accuracy, and the sealing ring filling must ensure that it is firmly fixed in the groove and appropriately compressed.

[0070] After the sealing rings are installed, the second shaft disc 332, fitted with the third and fourth sealing rings 3322 and 3324, is assembled with the first bearing seat 331, cross roller bearing 32, and other components according to design requirements. During the assembly process, the relative positioning and fit of the components must be ensured to ensure that the third and fourth sealing rings 3322 and 3324 form effective sealing contact with the first bearing seat 331, cross roller bearing 32, and other components, providing a sealed and protective seal.

[0071] Preferably, see Figure 6As shown, the flexible spline 312 includes a flange 3121 and a pipe section 3122. The flange 3121 is tightly attached to the end face of the cross roller bearing 32 on the side close to the first input end cover 311. The pipe section 3122 is coaxially and integrally connected to the side of the flange 3121 away from the first input end cover 311. The outer diameters of the flange 3121 and the cross roller bearing 32 are equal. The flange 3121 and the cross roller bearing 32 are suitable for installation in the inner stop of the first input end cover 311.

[0072] In this embodiment, the flexspline 312 is composed of a flange 3121 and a pipe section 3122. The flange 3121 and pipe section 3122 are coaxially connected, ensuring coaxiality between the two, thereby achieving a precise coaxial fit during subsequent assembly. The cross roller bearing 32 is installed in the corresponding position of the first input end cover 311. Simultaneously, the flange 3121 of the flexspline 312 is placed in close contact with the end face of the cross roller bearing 32 near the first input end cover 311. The equal outer diameters of the flange 3121 and cross roller bearing 32 ensure a tight fit between the two.

[0073] Since the flange 3121 and the cross roller bearing 32 are suitable for installation in the inner stop of the first input end cover 311, the flexible spline 312 and the cross roller bearing 32 are assembled together to the inner stop of the first input end cover 311. The positioning function of the inner stop ensures the accuracy and stability of the entire assembly structure.

[0074] Flange 3121 fits snugly against the end face of cross roller bearing 32 near the first input end cap 311 and is equal to the outer diameter of cross roller bearing 32, effectively reducing the gap between them and thereby lowering the risk of contaminants entering the equipment. Furthermore, the close fit between flange 3121 of flexspline 312 and cross roller bearing 32 helps prevent leakage of the internal lubricant, improving the equipment's sealing performance.

[0075] Because flange 3121 and cross roller bearing 32 have equal outer diameters and fit snugly within the inner stop of first input end cap 311, the entire assembly is well positioned and supported in both radial and axial directions. This structure enhances the rigidity and stability of the equipment, reduces potential vibration and shaking during operation, and thus improves its reliability and service life.

[0076] Preferably, see Figure 3As shown, the pipe section 3122 includes a first pipe section 31221, a first tapered pipe section 31222 and a second pipe section 31223 coaxially connected in sequence, and the outer diameter of the second pipe section 31223 is supported on the inner circumference of the second shaft disc 332, and the inner circumference of the second pipe section 31223 supports a third deep groove ball bearing 3422 sleeved on the second shaft section 342, and the second shaft section 342 is provided with a first shaft shoulder 3421 that is close to the end face of the third deep groove ball bearing 3422.

[0077] In this way, pipe section 3122 adopts a segmented design, allowing the structure and dimensions of each pipe section to be optimized according to the stress and functional requirements of different parts, while also facilitating connection and coordination with subsequent components. The outer diameter of second pipe section 31223 is designed to match the inner circumference of second shaft disc 332. Through precision machining, the matching accuracy between the two is ensured, allowing the outer diameter of second pipe section 31223 to stably support the inner circumference of second shaft disc 332, thereby establishing a mechanical connection and support relationship between the two. The third deep groove ball bearing 3422 is installed on the inner circumference of second pipe section 31223, ensuring that the inner ring of the bearing fits tightly with the second shaft section 342 and is properly installed. At the same time, a first shoulder 3421 is machined on the second shaft section 342, so that it is in close contact with the end face of the third deep groove ball bearing 3422. The positioning effect of the shoulder prevents the bearing from moving in the axial direction, ensuring the stability of the bearing during operation.

[0078] More specifically, see Figure 4 As shown, the perforated tube 411 includes a tube body 4111 and a tube flange 4112 that are coaxially connected as one body. The tube body 4111 is inserted into the central circular hole of the transmission shaft 34 , and the tube flange 4112 is connected to the end face of the rocker arm 412 away from the output end 33 .

[0079] In this embodiment, the perforated tube 411 is integrally formed of a tube body 4111 and a tube flange 4112. This arrangement ensures the overall structural strength and rigidity of the perforated tube 411 while facilitating subsequent installation and connection operations. The tube body 4111 is inserted into the central circular hole of the drive shaft 34. The coaxiality and fit accuracy between the tube body 4111 and the central circular hole of the drive shaft 34 must be ensured to ensure that the perforated tube 411 can be stably installed within the drive shaft 34 without excessive shaking or friction.

[0080] The pipe flange 4112 is connected to the end face of the rocker arm 412 away from the output end 33. Bolts and other fasteners are usually used to fix the pipe flange 4112 and the rocker arm 412 to ensure the connection strength and stability between the two and to withstand various loads and moments generated by the rocker arm 412 during movement.

[0081] More specifically, see Figure 1 、2 As shown, the driving assembly 1 includes a first driving motor 11 and a gear transmission assembly 12 . The first driving motor 11 is fixedly installed through a motor bracket 111 . The first driving motor 11 is suitable for driving the gear transmission assembly 12 for transmission.

[0082] The gear transmission assembly 12 includes a first synchronous pulley 121, a first synchronous belt 122 and a second synchronous pulley 123, wherein: The first synchronous pulley 121 is installed on the output shaft of the first drive motor 11, the second synchronous pulley 123 is installed on the end of the transmission shaft 34 extending out of the input end 31, and the first synchronous belt 122 is engaged and transmitted between the first synchronous pulley 121 and the second synchronous pulley 123; the gear transmission assembly 12 is suitable for driving the transmission shaft 34 of the harmonic reducer 3 to rotate.

[0083] Specifically, the first drive motor 11 is fixedly mounted via a motor bracket 111, ensuring the motor's stability during operation and providing a stable power source for subsequent power transmission. A first synchronous pulley 121 is mounted on the output shaft of the first drive motor 11, and a second synchronous pulley 123 is mounted on the end of the drive shaft 34 extending beyond the input end 31. The first synchronous belt 122 is then passed around the two synchronous pulleys, meshing and connecting them to form a complete gear transmission assembly 12, establishing a power transmission path from the motor to the drive shaft 34.

[0084] When the first drive motor 11 is powered on and started, its output shaft rotates the first synchronous pulley 121. The first synchronous pulley 121 transmits power to the second synchronous pulley 123 via the first synchronous belt 122, which in turn drives the transmission shaft 34 to rotate, thereby driving the transmission shaft 34 of the harmonic reducer 3.

[0085] Compared with some complex gear meshing structures, the gear transmission assembly 12 has a relatively simple and compact structure, which facilitates the effective transmission of power in a limited space, making the layout between the entire drive assembly 1 and other components such as the harmonic reducer 3 more coordinated and reasonable.

[0086] An embodiment of the present invention further provides a wire conveying method for manufacturing a coreless motor coil, using the above-mentioned wire conveying device for manufacturing a coreless motor coil. The wire conveying method includes the following steps: Step 1: The driving component 1 works to transmit power to the harmonic reducer 3, and the harmonic reducer 3 controls the swing angle of the rocker arm 412; Step 2: Install the two first wire outlet structures 413 on the rocker arm 412 so that the first wire pulleys 41322 of the two first wire outlet structures 413 fit together. The gap between the two first wire pulleys 41322 allows the wire 2 to pass vertically downward. Step 3: When the winding is in normal operation, the two first wire wheels 41322 guide the wire 2 vertically downward through the wire clamping mechanism 42 and the second wire mechanism 43 in sequence. The wire guided out of the second wire mechanism 43 enters the winding tooling; Step 4: When the winding operation stops, the wire clamping mechanism 42 is actuated to clamp the wire 2 vertically.

[0087] Although the present invention is disclosed as above, the scope of protection disclosed by the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A wire conveying device for manufacturing hollow cup motor coils, characterized in that: include: Drive assembly (1); A harmonic reducer (3), one end of which is drivingly connected to the drive assembly (1); A wire outlet mechanism (4) comprising a first wire guide mechanism (41) rotatably mounted on the other end of the harmonic reducer (3), a wire clamping mechanism (42) mounted in the middle of the first wire guide mechanism (41), and a second wire guide mechanism (43) mounted at the bottom of the first wire guide mechanism (41); The first wire mechanism (41) comprises a rocker arm (412) installed on a side of the harmonic reducer (3) away from the drive assembly (1), a perforated tube (411) passing through the harmonic reducer (3) and the rocker arm (412), and two first outlet structures (413) installed on the rocker arm (412), a wire (2) vertically passing through one side of the two first outlet structures (413) close to each other, and the bottom end of the wire (2) enters the second wire mechanism (43) through the wire clamping mechanism (42) and is led out; The driving assembly (1) drives the harmonic reducer (3) to operate and drives the rocker arm (412) to swing within a certain angle range, thereby limiting the guide combing of the wire (2) between the two first outlet structures (413); the wire clamping mechanism (42) is used to clamp and position the wire (2) so that the wire (2) is always in a vertical state.

2. The wire conveying device for manufacturing coreless motor coils according to claim 1, characterized in that: The first outlet structure (413) comprises a jumper wheel support (4131) adjustably mounted on a side of the rocker arm (412) away from the harmonic reducer (3) and two outlet guide pin assemblies (4132) sleeved on the jumper wheel support (4131); the jumper wheel support (4131) comprises a first support body (41311) connected to the rocker arm (412) and a second support body (41312) connected in reverse parallel to the first support body (41311); an adjustment slot (413111) is provided on the first support body (41311); an adjustment bolt (413112) fixedly connected to the rocker arm (412) is installed in the adjustment slot (413111); Each of the outlet guide needle assemblies (4132) comprises a first cylindrical head (41321) connected horizontally and vertically to the rocker arm (412), and a first wire pulley (41322) and a first nut (41323) sleeved on the first cylindrical head (41321), wherein the first wire pulley (41322) is located between the nut of the first cylindrical head (41321) and the first nut (41323), and the first cylindrical head (41321) is located between the first nut (41323) and the rocker arm (412) and is sleeved on a side of the second support body (41312) away from the first support body (41311); The two first wire wheels (41322) are closely attached to each other and have a gap in between for accommodating the wire (2) to pass through.

3. The wire conveying device for manufacturing coreless motor coils according to claim 2, characterized in that: The wire clamping mechanism (42) comprises an L-shaped base (421) horizontally connected to the rocker arm (412) and located below the wire guide needle assembly (4132), a clamping cylinder (422) installed on one side of the L-shaped base (421), and a pressure head (423) connected to the output shaft of the clamping cylinder (422), a pressure head seat is provided on a side wall of the L-shaped base (421) facing the pressure head (423), and the wire (2) guided out through the two first wire wheels (41322) is passed between the pressure head seat and the pressure head (423).

4. The wire conveying device for manufacturing coreless motor coils according to claim 2, characterized in that: The second wire mechanism (43) comprises a guide rod clamp (431) vertically connected to the rocker arm (412) and located below the wire clamping mechanism (42), and a tungsten steel wire nozzle (432) vertically installed on a side of the guide rod clamp (431) away from the wire clamping mechanism (42), wherein the wire (2) outputted through the wire clamping mechanism (42) is passed through the tungsten steel wire nozzle (432).

5. The wire conveying device for manufacturing coreless motor coils according to claim 4, characterized in that: The harmonic reducer (3) includes a harmonic bracket (35), a transmission shaft (34) horizontally inserted into the harmonic bracket (35), an input end (31) mounted on one side of the harmonic bracket (35) and sleeved on the transmission shaft (34), an output end (33) mounted on the other side of the harmonic bracket (35) and sleeved on the transmission shaft (34), and a cross roller bearing (32) sleeved on the transmission shaft (34) and located in the harmonic bracket (35), one end of the cross roller bearing (32) being connected to the input end (31), and the other end being connected to the output end (33); The perforated tube (411) comprises a tube body (4111) and a tube flange (4112) coaxially connected to each other. The tube body (4111) is inserted into the central circular hole of the transmission shaft (34), and the tube flange (4112) is connected to the end face of the rocker arm (412) away from the output end (33).

6. The wire conveying device for manufacturing coreless motor coils according to claim 5, characterized in that: The transmission shaft (34) comprises a first shaft section (341), a second shaft section (342), and a third shaft section (343) that are coaxially connected in sequence; The input end (31) comprises a first input end cover (311) mounted on the first shaft segment (341) and a flexible wheel (312) sleeved on the second shaft segment (342); the first input end cover (311) is supported on the first shaft segment (341) via a second deep groove ball bearing (3412); a first shaft seal (3411) and a spring washer (3413) sleeved on the first shaft segment (341) are further provided in the first input end cover (311), and two ends of the spring washer (3413) are respectively tightly attached to the end faces of the first shaft seal (3411) and the second deep groove ball bearing (3412); the first input end cover (311) and the flexible wheel (312) are fixedly connected by a plurality of first countersunk bolts (313) arranged horizontally and evenly distributed; The output end (33) includes a first bearing seat (331) mounted on the third shaft segment (343) and a second shaft disc (332) sleeved on the second shaft segment (342), the first bearing seat (331) is supported on the third shaft segment (343) through a second deep groove ball bearing (3412), the second shaft disc (332) is sleeved on a side of the second shaft segment (342) close to the first bearing seat (331), and the first bearing seat (331) is supported on the third shaft segment (343) through a fourth deep groove ball bearing (3431) and a second shaft seal (3432), and the first bearing seat (331) and the second shaft disc (332) are fixedly connected by a plurality of horizontally arranged and evenly distributed second countersunk bolts (333).

7. The wire conveying device for manufacturing coreless motor coils according to claim 6, characterized in that: A first sealing ring groove (3111) is provided on an end surface of the first input end cover (311) close to the flexible wheel (312), and a first sealing ring (3112) is filled in the first sealing ring groove (3111); a second sealing ring groove (321) is provided on an end surface of the cross roller bearing (32) close to the flexible wheel (312), and a second sealing ring (322) is filled in the second sealing ring groove (321); A third sealing ring groove (3321) is provided on the end face of one side of the second shaft disc (332) close to the first bearing seat (331), and a third sealing ring (3322) is filled in the third sealing ring groove (3321). A fourth sealing ring groove (3323) is provided on the end face of one side of the second shaft disc (332) close to the cross roller bearing (32), and a fourth sealing ring (3324) is filled in the fourth sealing ring groove (3323).

8. The wire conveying device for manufacturing coreless motor coils according to claim 6, characterized in that: The flexible wheel (312) comprises a flange (3121) closely attached to the end face of the cross roller bearing (32) close to the first input end cover (311) and a pipe section (3122) coaxially and integrally connected to the flange (3121) on the side away from the first input end cover (311), wherein the outer diameters of the flange (3121) and the cross roller bearing (32) are equal, and the flange (3121) and the cross roller bearing (32) are suitable for being installed in the inner stop of the first input end cover (311); The pipe section (3122) includes a first pipe section (31221), a first tapered pipe section (31222), and a second pipe section (31223) that are coaxially connected in sequence, and the outer diameter of the second pipe section (31223) is supported on the inner circumference of the second shaft disc (332). The inner circumference of the second pipe section (31223) supports a third deep groove ball bearing (3422) sleeved on the second shaft section (342). The second shaft section (342) is provided with a first shaft shoulder (3421) that is in close contact with the end face of the third deep groove ball bearing (3422).

9. The wire conveying device for manufacturing coreless motor coils according to claim 5, characterized in that: The driving assembly (1) comprises a first driving motor (11) and a gear transmission assembly (12); the first driving motor (11) is fixedly mounted via a motor bracket (111); the first driving motor (11) is adapted to drive the gear transmission assembly (12); The gear transmission assembly (12) comprises a first synchronous pulley (121) mounted on the output shaft of the first drive motor (11), a second synchronous pulley (123) mounted on the end of the transmission shaft (34) extending from the input end (31), and a first synchronous belt (122) meshingly connected between the first synchronous pulley (121) and the second synchronous pulley (123); The gear transmission assembly (12) is suitable for driving the transmission shaft (34) of the harmonic reducer (3) to rotate.

10. A wire conveying method for manufacturing a coreless motor coil, using the wire conveying device for manufacturing a coreless motor coil according to any one of claims 1 to 9, characterized in that: The wire conveying method comprises the following steps: Step 1: The driving component (1) works to transmit power to the harmonic reducer (3), and the swing angle of the rocker arm (412) is controlled by the harmonic reducer (3); Step 2: Install the two first wire outlet structures (413) on the rocker arm (412) so that the first wire pulleys (41322) of the two first wire outlet structures (413) fit together, and the gap between the two first wire pulleys (41322) allows the wire (2) to pass vertically downward; Step 3: When the winding is in normal operation, the two first wire wheels (41322) guide the wire (2) vertically downward to pass through the wire clamping mechanism (42) and the second wire mechanism (43) in sequence, and the wire guided out through the second wire mechanism (43) enters the winding tooling; Step 4: When the winding operation stops, the wire clamping mechanism (42) is actuated to vertically clamp the wire (2).

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