Automatic winding process for automobile starter motor rotor coil

Abstract

The application relates to the technical field of rotor winding, in particular to an automatic winding process for a rotor coil of a motor starter motor, which comprises a fixed mounting base, a movable mounting base and a rotor mounting base, winding arms are rotatably installed on the fixed mounting base and the movable mounting base, the winding arms are driven to rotate by a motor, a buffer assembly is fixedly installed at the winding end of the winding arm, and the buffer assembly is used for buffering the sudden copper wire tension; the buffer assembly can buffer the influence of the sudden copper wire tension on the copper wire when the copper wire produces the sudden tension, and can transmit the tension change information, so that the winding process can be carried out outside the precision range of the tensioner, and the possibility of copper wire breakage in the high-speed winding process is effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of rotor winding technology, specifically to an automatic winding process for the rotor coil of an automotive starter motor. Background Technology

[0002] A starter motor, also called a motor, converts the electrical energy of a battery into mechanical energy to drive the engine flywheel to rotate and start the engine. It consists of a magnetic field (stator), an armature (rotor), and a commutator. In fact, it is a type of electric motor. To increase torque, a multi-pole magnetic field is used, with four magnetic fields being common.

[0003] When manufacturing a starter motor, copper wire needs to be wound around the rotor. Depending on the specifications, the thickness and number of copper wires on the rotor vary. Due to size limitations, the diameter of the copper wire in an automotive starter motor is thinner than that in a normal motor. Therefore, during the automatic winding process of the starter motor rotor coil, because the shape of the winding part of the rotor is similar to a T, when the winding machine winds quickly and approaches the horizontal end of the T, the thin copper wire is prone to contact with the outside of the rotor. This will generate a certain amount of tension on the copper wire for a short period of time, which can easily cause it to break during high-speed winding. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an automatic winding process for the rotor coil of an automotive starter motor, which can effectively solve the problem of easy breakage of high-speed winding in the existing technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention provides an automatic winding process for the rotor coil of an automotive starter motor, including a fixed mounting base, a movable mounting base, and a rotor mounting base. A winding arm is rotatably mounted on both the fixed mounting base and the movable mounting base. The winding arm is driven to rotate by a motor. A buffer component is fixedly mounted at the winding end of the winding arm to buffer sudden changes in copper wire tension. The winding process includes the following steps: S1. Place the rotor on the rotor mounting base and fix it. Move the mounting base closer to the rotor mounting base and drive the winding arm to wind the rotor on the rotor mounting base through the motor. S2. During the winding process, the buffer component on the winding arm buffers the tension and transmits the tension information to the tensioner. S3. Cut the copper wire and remove the rotor.

[0006] Furthermore, the buffer assembly includes a mounting plate fixedly installed on the winding end of the winding arm. A slot is inclined at 45° on the mounting plate. A fixing block is fixedly installed in the center of the slot. A fixing shaft is fixedly installed on one side of the fixing block. Two first rotating rods are rotatably mounted on the fixing shaft. A copper wire guide wheel is rotatably mounted between the two first rotating rods. A piston cylinder is fixedly installed on one side of the fixing block. A sliding rod is slidably inserted into the piston cylinder. A piston block is fixedly connected to one end of the sliding rod inside the piston cylinder. A spring is fixedly connected between the piston block and the side wall of the piston cylinder. A slider is fixedly connected to the top of the sliding rod. The slider slides within the slot. A fixing post is fixedly connected to one side of the slider. Two second rotating rods are rotatably mounted on the fixing post. The other ends of the two second rotating rods are rotatably mounted on both sides of the copper wire guide wheel.

[0007] Furthermore, the copper wire guide wheel is divided into a copper wire buffer guide wheel and a copper wire supplement guide wheel. The copper wire buffer guide wheel is closer to the portion of copper wire directly wound on the rotor, and the copper wire supplement guide wheel is closer to the supplied copper wire portion. The copper wire is placed in an S-shape on the copper wire buffer guide wheel and the copper wire supplement guide wheel. Both the copper wire buffer guide wheel and the copper wire supplement guide wheel are rotatably mounted on a fixed shaft and a fixed column via a first rotating rod and a second rotating rod. The first rotating rod and the second rotating rod on the copper wire buffer guide wheel and the copper wire supplement guide wheel are symmetrically arranged and have the same position and length.

[0008] Furthermore, a chamber is formed inside the piston block, located directly above the elastic bladder. A blocking ring is fixedly installed inside the chamber. A spring is fixedly connected to the top of the elastic bladder and is located inside the chamber. A passive magnet is fixedly connected to the top of the spring. A pointed insert is fixedly connected to the bottom of the passive magnet. A repulsive magnet is embedded and fixedly installed on the piston cylinder. When the passive magnet moves to the vicinity of the repulsive magnet, the repulsive magnet generates a magnetic repulsive force on the passive magnet.

[0009] Furthermore, the top of the elastic bladder is provided with an insertion hole for the pointed insert to be inserted between the two movable mounting bases when it descends.

[0010] Furthermore, the piston block and piston cylinder are provided with a through hole, the chamber of the piston block is connected to the outside through the through hole, and a blocking ring is fixedly connected in the chamber of the piston block. When the passive magnet and the blocking ring coincide, the connection between the chamber and the through hole is blocked.

[0011] Furthermore, two fixing plates are symmetrically fixedly connected to the fixing shaft, and flexible airbags are fixedly connected to the side of the two fixing plates that are close to each other. A first connecting tube is fixedly connected between the top walls of the two flexible airbags. An annular space is formed between the flexible airbags, the first connecting tube and the fixing shaft to accommodate the copper wire passing through.

[0012] Furthermore, the flexible airbag has a cavity structure, and the two flexible airbags are interconnected through a first connecting pipe. A second connecting pipe is installed through one side of one of the flexible airbags, and the other end of the second connecting pipe is installed through the side plate of the piston cylinder. A pressure relief valve is embedded and fixedly installed in the middle of the side plate of the piston cylinder.

[0013] The technical solution provided by this invention has the following advantages compared with known public technologies: This invention, by setting up a buffer component, can buffer the effect of sudden tension on the copper wire and transmit the tension change information. It can work outside the accuracy range of the tensioner and effectively reduce the possibility of copper wire breaking during high-speed winding. In conjunction with elastic bladders and other related components, when the copper wire is subjected to sudden tensile force, the spring is quickly energized, which can quickly relax the copper wire and more effectively prevent the copper wire from breaking. Furthermore, in conjunction with a flexible airbag, the position of the copper wire is fixed during the movement of the copper wire buffer guide wheel and the copper wire supplementary guide wheel, ensuring the relaxation effect of the copper wire and the deformation effect of the copper wire, which can effectively relax the copper wire and transmit information on changes in tension. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure at the winding arm of the present invention; Figure 3 This is a front view of the winding arm of the present invention; Figure 4 This is a schematic diagram of the copper wire arrangement of the present invention; Figure 5 This is a schematic diagram of the buffer component of the present invention; Figure 6 This is a vertical schematic diagram of the buffer component of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of point A in the middle; Figure 8 This is a schematic diagram of the mounting plate and slider of the present invention; Figure 9 This is a schematic diagram of the fixed shaft of the present invention; Figure 10 This is a schematic diagram of the internal structure of the piston cylinder of the present invention; Figure 11 For the present invention Figure 10 Enlarged view of section B in the middle.

[0016] The labels in the diagram represent: 1. Fixed mounting base; 2. Winding arm; 3. Movable mounting base; 4. Rotor mounting base; 5. Buffer assembly; 501. Mounting plate; 502. Fixed shaft; 503. First rotating rod; 504. Copper wire guide wheel; 5041. Copper wire buffer guide wheel; 5042. Copper wire supplementary guide wheel; 505. Second rotating rod; 506. Fixed column; 507. Piston cylinder; 508. Slide rod; 5 09. Slider; 510. Piston block; 511. Elastic bladder; 512. Conductive contact; 513. Adhesive conductive sheet; 514. Through hole; 515. Blocking ring; 516. Passive magnet; 517. Repulsive magnet; 518. Pressure relief valve; 519. Fixing plate; 520. Flexible airbag; 521. First connecting pipe; 522. Second connecting pipe; 523. Slot; 524. Fixing block; 525. Pointed insert. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0018] The present invention will be further described below with reference to embodiments.

[0019] Example: The automatic winding process of the rotor coil of the automotive starter motor, combined with Figure 1-11 The system includes a fixed mounting base 1, a movable mounting base 3, and a rotor mounting base 4. A winding arm 2 is rotatably mounted on both the fixed mounting base 1 and the movable mounting base 3. The winding arm 2 is driven to rotate by a motor. The system is characterized in that a buffer assembly 5 is fixedly mounted at the winding end of the winding arm 2 to buffer sudden changes in copper wire tension. The winding process includes the following steps: S1. Place the rotor on the rotor mounting base 4 and fix it. Move the mounting base 3 closer to the rotor mounting base 4. Drive the winding arm 2 to wind the rotor on the rotor mounting base 4 through the motor. S2. During the winding process, the buffer component 5 on the winding arm 2 buffers the tension and transmits the tension information to the tensioner. S3. Cut the copper wire and remove the rotor.

[0020] The buffer assembly 5 includes a mounting plate 501 fixedly installed on the winding end of the winding arm 2. A slot 523 is inclined at 45° on the mounting plate 501. A fixing block 524 is fixedly installed in the middle of the slot 523. A fixing shaft 502 is fixedly installed on one side of the fixing block 524. Two first rotating rods 503 are rotatably mounted on the fixing shaft 502. A copper wire guide wheel 504 is rotatably mounted between the two first rotating rods 503. A piston cylinder 507 is fixedly installed on one side of the fixing block 524. Inside the piston cylinder 507... A sliding rod 508 is slidably inserted. One end of the sliding rod 508, which is located inside the piston cylinder 507, is fixedly connected to a piston block 510. A spring is fixedly connected between the piston block 510 and the side wall of the piston cylinder 507. A slider 509 is fixedly connected to the top end of the sliding rod 508. The slider 509 slides in the slot 523. A fixing post 506 is fixedly connected to one side of the slider 509. Two second rotating rods 505 are rotatably mounted on the fixing post 506. The other ends of the two second rotating rods 505 are rotatably mounted on both sides of the copper wire guide wheel 504.

[0021] Specifically, the copper wire guide wheel 504 is divided into a copper wire buffer guide wheel 5041 and a copper wire supplement guide wheel 5042. The copper wire buffer guide wheel 5041 is closer to the portion of copper wire directly wound on the rotor, and the copper wire supplement guide wheel 5042 is closer to the supplied copper wire portion. The copper wire is placed in an S-shape on the copper wire buffer guide wheel 5041 and the copper wire supplement guide wheel 5042. Both the copper wire buffer guide wheel 5041 and the copper wire supplement guide wheel 5042 are rotatably mounted on the fixed shaft 502 and the fixed column 506 via a first rotating rod 503 and a second rotating rod 505. The first rotating rod 503 and the second rotating rod 505 on the copper wire buffer guide wheel 5041 and the copper wire supplement guide wheel 5042 are symmetrically arranged and have the same position and length.

[0022] When placing the copper wire or copper wire, wrap the copper wire or copper wire in an S-shape around the two copper wire guide wheels 504. Figure 4 What is shown in the middle is... Figure 3 The winding method of copper wire or copper coil from a visual reference point. Figure 4In the winding mechanism, the lower end of the upper copper wire is directly wound around the rotor, while the upper end is an externally supplied copper wire. When the copper wire wound around the rotor comes into contact with the protruding part of the rotor and generates a sudden tension, the copper wire will generate a sudden tension on the copper wire buffer guide wheel 5041, and drive the copper wire buffer guide wheel 5041 to the middle position of the two arms of the winding arm 2. This forces the first rotating rod 503 to rotate on the fixed shaft 502, and pulls the fixed column 506 to move through the second rotating rod 505. The fixed column 506 then slides the slider 509 on the slot 523, allowing the sliding rod 508 on the slider 509 to extend into the piston cylinder 507. Inside, the spring inside the piston cylinder 507 is compressed. Simultaneously, the movement of the slider 509 causes a change in the position of the second rotating rod 505 on the copper wire replenishment guide wheel 5042. Since the first rotating rod 503 and the second rotating rod 505 form a linkage mechanism, when the slider 509 slides, the second rotating rod 505 and the first rotating rod 503, which are symmetrically positioned, will perform the same movement. That is, the copper wire buffer guide wheel 5041 and the copper wire replenishment guide wheel 5042 will rotate closer to each other. At this time, the copper wire portion on the copper wire buffer guide wheel 5041 is relaxed, while the copper wire portion on the copper wire replenishment guide wheel 5042 will be relaxed by the copper wire replenishment guide wheel. The friction and compression of wheel 5042 generate a certain amount of tension. This tension acts on the tensioner supplying the copper wire, causing a change in tension and simultaneously relaxing the copper wire. When the copper wire continues to be compressed, the tensioner can clearly detect the change in tension and take action. When the tension suddenly disappears, the slide bar 508 will reset under the action of the spring, and the two copper wire guide wheels 504 will also reset. During this process, the copper wire replenishment guide wheel 5042 slowly releases the portion of copper wire that has been pushed out, while the copper wire buffer guide wheel 5041 tightens the copper wire. At this time, the portion of copper wire pulled over by the copper wire replenishment guide wheel 5042 will also replenish some copper wire. The buffer guide wheel 5041 requires a certain length of tightened copper wire to prevent the copper wire from breaking quickly under sudden tension. Furthermore, during the reset process of the copper wire buffer guide wheel 5041, there is sufficient copper wire length to supplement the required taut copper wire length, preventing the copper wire between the rotor and the buffer guide wheel 5041 from being pulled during reset. This avoids additional tension on the copper wire during the process, reducing the risk of breakage. Additionally, the copper wire supplementary guide wheel 5042 transmits the changing tension of the copper wire to the tensioner, facilitating rapid triggering of the tensioner.

[0023] It should be noted that the tightening or loosening of the copper wire by the copper wire buffer guide wheel 5041 is relative to the copper wire on the rotor. Furthermore, the rotor fixed on the rotor mounting base 4 requires an additional clamping mechanism located above, which is existing technology and not shown in the figure; therefore, it will not be elaborated upon here. The winding arm 2 is driven by a motor, and its control by a servo system or PLC system is also existing technology; the relevant working principle will not be elaborated upon here. Figure 4 The image only shows the winding method of the copper wire; the specific proportions and... Figure 3 There are differences in the places Figure 3 As the standard.

[0024] Specifically, an elastic bladder 511 is embedded and fixedly installed on the side of the piston block 510 near the spring. Conductive contacts 512 are embedded and fixedly connected on both sides of the elastic bladder 511. One end of the spring connected to the piston block 510 is fixedly connected to the conductive contacts 512. Two conductive sheets 513 are vertically fixedly installed inside the elastic bladder 511. A sealed chamber is formed between the conductive sheets 513 and the conductive contacts 512 closer to the conductive sheets 513. The sealed chamber is filled with a high concentration of conductive electrolyte. The conductive contacts 512 not connected to the spring and the end of the spring away from the conductive contacts 512 are connected to an external power source.

[0025] Specifically, the piston block 510 has a chamber located directly above the elastic bladder 511. A blocking ring 515 is fixedly installed in the chamber. A spring is fixedly connected to the top of the elastic bladder 511 and is located in the chamber. A passive magnet 516 is fixedly connected to the top of the spring. A pointed insert 525 is fixedly connected to the bottom of the passive magnet 516. A repulsive magnet 517 is embedded and fixedly installed on the piston cylinder 507. When the passive magnet 516 moves to the vicinity of the repulsive magnet 517, the repulsive magnet 517 generates a magnetic repulsive force on the passive magnet 516.

[0026] Specifically, the top of the elastic bladder 511 is provided with an insertion hole for the pointed insert 525 to be inserted between the two movable mounting bases 3 when it descends.

[0027] Specifically, the piston block 510 and the piston cylinder 507 are provided with a through hole 514. The chamber of the piston block 510 is connected to the outside through the through hole 514. A blocking ring 515 is fixedly connected in the chamber of the piston block 510. When the passive magnet 516 and the blocking ring 515 overlap, the connection between the chamber and the through hole 514 is blocked.

[0028] As the slide rod 508 slides into the piston cylinder 507, the spring inside the piston cylinder 507 is compressed. Correspondingly, the spring also exerts a compressive force on one side of the elastic bladder 511. When this compressive force forces the elastic bladder 511 to deform and causes the conductive sheets 513 inside the elastic bladder 511 to stick together, a current will flow through the spring inside the piston cylinder 507. This causes each coil of the spring inside the piston cylinder 507 to generate a magnetic field. Since the current direction is the same, the magnetic field arrangement of each coil on the same spring is the same, that is, the magnetic field is arranged with the left N pole and the right S pole or the left S pole and the right N pole. In this way, the adjacent magnetic fields are close to each other in polarity. The difference causes each coil of the spring to attract each other, forcing the spring to contract rapidly. This allows the slide rod 508 to quickly retract into the piston cylinder 507 when a sudden change in tension occurs in the copper wire buffer guide wheel 5041, rapidly reducing the tension between the copper wire and the copper wire buffer guide wheel 5041. This quickly eliminates the effect of the sudden change in tension on the copper wire, further preventing the copper wire from breaking. At the same time, tension is inevitably generated during the winding of the copper wire, and this tension is partially buffered by the spring in the piston cylinder 507. Only when the tension changes suddenly and is large, and the spring's compressive force on the elastic bladder 511 is greater than the elastic force of the elastic bladder 511 itself, will the conductive sheet 513 adhere.

[0029] It should be noted that the bonding of the two conductive sheets 513 is similar to the closing of a switch, which connects the circuit. The connection method of the wires and the arrangement of the circuit are diverse and belong to the prior art. Therefore, no further limitations will be imposed on them here.

[0030] After the piston block 510 quickly approaches the bottom wall of the piston cylinder 507, the magnetic repulsion force generated by the repulsive magnet 517 on the passive magnet 516 will cause the pointed insert 525 to move downward and insert between the two mating conductive sheets 513, forcing the two mating conductive sheets 513 to separate. The spring will then quickly return to its original position. When the piston block 510 returns to its original position, the piston block 510 and the through hole 514 on the piston cylinder 507 will coincide, allowing the space between the two mating conductive sheets 513 to communicate with the outside through the through hole 514, facilitating the rapid return of the elastic bladder 511.

[0031] Specifically, two fixing plates 519 are symmetrically fixedly connected to the fixing shaft 502. Flexible airbags 520 are fixedly connected to the side of the two fixing plates 519 that are close to each other. A first connecting pipe 521 is fixedly connected between the top walls of the two flexible airbags 520. An annular space is formed between the flexible airbags 520, the first connecting pipe 521 and the fixing shaft 502 to accommodate the copper wire passing through.

[0032] Specifically, the flexible airbag 520 has a cavity structure, and the two flexible airbags 520 are interconnected through a first connecting pipe 521. A second connecting pipe 522 is installed through one side of one of the flexible airbags 520, and the other end of the second connecting pipe 522 is installed through the side plate of the piston cylinder 507. A pressure relief valve 518 is embedded and fixedly installed in the middle of the side plate of the piston cylinder 507.

[0033] During the placement of the copper wire, it needs to pass through the annular space formed between the flexible airbag 520, the first connecting pipe 521, and the fixed shaft 502 to restrict the position of the copper wire. The two flexible airbags 520 also provide a clamping effect on the copper wire, helping to stabilize its position. Simultaneously, during the rapid retraction of the slide rod 508, the gas inside the piston cylinder 507 is rapidly pushed through the second connecting pipe 522 towards the flexible airbag 520 by the compression of the piston block 510. This is the process of the copper wire buffer guide wheel 5041 and the copper wire replenishment guide wheel 5042 operating synchronously; that is, the copper wire buffer guide wheel 5041 loosens part of the copper wire, and the copper wire replenishment guide wheel 5042... During the process of tightening the copper wire, the two flexible airbags 520, which are replenished with gas, will expand and clamp the copper wire between the two flexible airbags 520, fixing the position of the copper wire. This ensures that the copper wire portion loosened by the copper wire buffer guide wheel 5041 and the copper wire portion tightened by the copper wire replenishment guide wheel 5042 do not interfere with each other. This ensures that the copper wire buffer guide wheel 5041 loosens the copper wire and that the copper wire replenishment guide wheel 5042 tightens the copper wire. This allows the copper wire to be fully relaxed and provides sufficient information to the tensioner, buffering out-of-range tension and preventing sudden changes in tension outside the tensioner's accuracy range, which could cause the copper wire to break within that tension.

[0034] The pressure relief valve 518 allows the gradually increasing air pressure inside the piston cylinder 507 to be released to the outside when the flexible airbag 520 fails to inflate. During the piston block 510 reset process, the negative pressure generated by the piston cylinder 507 is first transmitted to the flexible airbag 520, causing the flexible airbag 520 to stop inflating and lose its grip on the copper wire. When the negative pressure is large, external air breaks through the pressure of the pressure relief valve 518 and enters the piston cylinder 507. The pressure relief valve 518 can be of various types and belongs to the prior art, so it will not be further limited here.

[0035] 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 of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic winding process for the rotor coil of an automotive starter motor, characterized in that, It includes a fixed mounting base (1), a movable mounting base (3) and a rotor mounting base (4). Both the fixed mounting base (1) and the movable mounting base (3) are rotatably mounted with a winding arm (2). The winding arm (2) is driven to rotate by a motor. The feature is that a buffer assembly (5) is fixedly installed at the winding end of the winding arm (2) to buffer the sudden change in copper wire tension. The winding process includes the following steps: S1. Place the rotor on the rotor mounting base (4) and fix it. Move the mounting base (3) closer to the rotor mounting base (4) and drive the winding arm (2) to wind the rotor on the rotor mounting base (4) by the motor. S2, During the winding process, the buffer component (5) on the winding arm (2) buffers the tension and transmits the tension information to the tensioner; S3. Cut the copper wire and remove the rotor; The buffer assembly (5) includes a mounting plate (501) fixedly mounted on the winding end of the winding arm (2). A slot (523) is provided on the mounting plate (501) at an angle of 45°. A fixing block (524) is fixedly mounted in the middle of the slot (523). A fixing shaft (502) is fixedly mounted on one side of the fixing block (524). Two first rotating rods (503) are rotatably mounted on the fixing shaft (502). A copper wire guide wheel (504) is rotatably mounted between the two first rotating rods (503). A piston cylinder (507) is fixedly mounted on one side of the fixing block (524). The piston cylinder (507) slides inside the piston cylinder (507). A sliding rod (508) is inserted. One end of the sliding rod (508) inside the piston cylinder (507) is fixedly connected to a piston block (510). A spring is fixedly connected between the piston block (510) and the side wall of the piston cylinder (507). A slider (509) is fixedly connected to the top of the sliding rod (508). The slider (509) slides in the slot (523). A fixing post (506) is fixedly connected to one side of the slider (509). Two second rotating rods (505) are rotatably mounted on the fixing post (506). The other ends of the two second rotating rods (505) are rotatably mounted on both sides of the copper wire guide wheel (504). The copper wire guide wheel (504) is divided into a copper wire buffer guide wheel (5041) and a copper wire supplement guide wheel (5042). The copper wire buffer guide wheel (5041) is closer to the part of the copper wire directly wound on the rotor, and the copper wire supplement guide wheel (5042) is closer to the supplied copper wire part. The copper wire is placed in an S-shape on the copper wire buffer guide wheel (5041) and the copper wire supplement guide wheel (5042). The copper wire buffer guide wheel (5041) and the copper wire supplement guide wheel (5042) are both rotatably mounted on the fixed shaft (502) and the fixed column (506) through the first rotating rod (503) and the second rotating rod (505). The first rotating rod (503) and the second rotating rod (505) on the copper wire buffer guide wheel (5041) and the copper wire supplement guide wheel (5042) are symmetrically arranged and have the same position and length.

2. The automatic winding process for the rotor coil of an automotive starter motor according to claim 1, characterized in that, The piston block (510) has a chamber located directly above the elastic bladder (511). A blocking ring (515) is fixedly installed in the chamber. A spring is fixedly connected to the top of the elastic bladder (511) and the spring is located in the chamber. A passive magnet (516) is fixedly connected to the top of the spring. A pointed insert (525) is fixedly connected to the bottom of the passive magnet (516). A repulsive magnet (517) is embedded and fixedly installed on the piston cylinder (507). When the passive magnet (516) moves to the vicinity of the repulsive magnet (517), the repulsive magnet (517) generates a magnetic repulsive force on the passive magnet (516).

3. The automatic winding process for the rotor coil of an automotive starter motor according to claim 2, characterized in that, The top of the elastic bladder (511) has an insertion hole for inserting the pointed insert (525) between the two movable mounting bases (3) when it descends.

4. The automatic winding process for the rotor coil of an automotive starter motor according to claim 3, characterized in that, The piston block (510) and piston cylinder (507) are provided with a through hole (514). The chamber of the piston block (510) is connected to the outside through the through hole (514). A blocking ring (515) is fixedly connected in the chamber of the piston block (510). When the passive magnet (516) and the blocking ring (515) overlap, the connection between the chamber and the through hole (514) is blocked.

5. The automatic winding process for the rotor coil of an automotive starter motor according to claim 4, characterized in that, Two fixing plates (519) are symmetrically fixedly connected to the fixed shaft (502). Flexible airbags (520) are fixedly connected to the side of the two fixing plates (519) that are close to each other. A first connecting pipe (521) is fixedly connected between the top walls of the two flexible airbags (520). An annular space is formed between the flexible airbags (520), the first connecting pipe (521) and the fixed shaft (502) to accommodate the copper wire passing through.

6. The automatic winding process for the rotor coil of an automotive starter motor according to claim 5, characterized in that, The flexible airbag (520) has a cavity structure. The two flexible airbags (520) are connected to each other through a first connecting pipe (521). A second connecting pipe (522) is installed through one side of one of the flexible airbags (520). The other end of the second connecting pipe (522) is installed through the side plate of the piston cylinder (507). A pressure relief valve (518) is embedded and fixedly installed in the middle of the side plate of the piston cylinder (507).

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