Axial flux motor pcb coil precision etching forming process and device

Abstract

The application discloses an axial flux motor PCB coil precision etching forming process and device, and belongs to the technical field of coil etching processing.The driving motor, the first connecting strip, the second connecting strip, the pushing linkage mechanism, the swinging pushing frame and the spray strip are arranged, the swinging pushing frame continuously swings, the swinging pushing frame reciprocating swings, and then the spray strip is driven to swing around the swinging shaft as the shaft, so that stable and regular reciprocating swinging actions are realized.In the swinging process, the spray strip continuously and uniformly sprays the stored etching liquid to the surface of the copper foil coil which has been accurately positioned.Benefiting from the high-frequency uniform-speed swinging spraying mode of the spray strip, the etching liquid covers the whole surface of the copper foil coil without dead angle, accumulation or omission, and completely avoids defects such as uneven distribution of the liquid, excessive local etching and insufficient local etching existing in the traditional fixed-point spraying, so that fine and uniform etching processing can be performed on the surface of the copper foil coil.

Description

Technical Field

[0001] This invention relates to the field of coil etching technology, specifically to a precision etching forming process and apparatus for axial flux motor PCB coils. Background Technology

[0002] Axial flux motors differ from traditional radial flux motors by abandoning the radial arrangement of the stator and rotor, adopting an axial magnetic field coupling layout. They possess significant core advantages such as high power density, compact structure, short axial dimension, unobstructed heat dissipation, and stable torque output. In recent years, their market application in high-end equipment fields such as new energy passenger vehicle drive systems, industrial high-precision servo equipment, motors for large energy storage converters, airborne power systems, and rail transit auxiliary drives has continued to expand rapidly, gradually replacing traditional radial motors as the mainstream choice. The PCB-formed coil is an indispensable core conductive component inside the axial flux motor, directly undertaking the key functions of alternating current conduction and magnetic field generation. The etching and forming of the copper foil lines on the coil surface... Precision, line width and spacing consistency, and etching depth uniformity directly affect the uniformity of the magnetic field distribution inside the motor. If the etching process has large deviations, it is easy to cause problems such as local magnetic flux imbalance and a surge in eddy current losses, which in turn reduces the overall electromagnetic energy conversion efficiency of the machine. At the same time, inconsistent circuit dimensions will cause stator winding impedance imbalance, which will aggravate vibration and significantly increase operating noise during motor operation. Under long-term operating conditions, it will also aggravate winding heating, accelerate insulation aging, and significantly shorten the overall design life of the motor. Therefore, the etching processing precision of the PCB coils for axial flux motors is a core process that restricts the upper limit of the performance of high-end axial motors and the yield rate of mass production. As a result, the industry's demand for precision etching processing equipment for PCB copper foil coils continues to rise.

[0003] Existing precision etching and forming processes and devices for axial flux motor PCB coils mostly use fixed direct-injection nozzles when etching and forming PCB coils. The spraying points are fixed, and the etching solution can only partially cover the copper foil board surface. The flow rate of the solution varies significantly between the center, edge, and corner of the board surface, which easily leads to problems such as over-etching in the center and incomplete etching at the corners. At the same time, the ultra-thin copper foil board is prone to sagging, warping, and unilateral stretching deformation during the conveying process. It is difficult to keep the rotation speed of each roller group completely synchronized. The copper foil is prone to lateral tilting and front-back misalignment during the movement, resulting in large dimensional tolerances after the coil circuit is formed.

[0004] Based on this, the present invention designs a precision etching forming process and apparatus for axial flux motor PCB coils to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a precision etching and forming process and apparatus for axial flux motor PCB coils, in order to solve the problems mentioned in the background art. These problems include the use of fixed direct-injection nozzles and fixed spray points during PCB coil etching, resulting in the etching solution only partially covering the copper foil surface. This leads to significant differences in solution flow between the center, edges, and corners of the board, easily causing over-etching in the center and incomplete etching at the corners. Furthermore, the ultra-thin copper foil is prone to sagging, warping, and unilateral stretching deformation during transport, making it difficult to maintain perfect synchronization of the rotation speeds of different roller groups. This results in lateral tilting and misalignment of the copper foil during its movement, leading to large dimensional tolerances after coil circuit formation.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A precision etching and forming device for axial flux motor PCB coils includes a mounting base. A top cover is fixedly mounted at the center of the top of the mounting base. Multiple conveying mechanisms 1, 2, and 3 are rotatably mounted on the inner walls of the mounting base and the top cover via bearings. The conveying mechanisms 1, 2, and 3 are staggered and equidistantly arranged inside the mounting base or the top cover. The positions of the conveying mechanisms 1, 2, and 3 inside the mounting base and the top cover correspond to each other. Pushing linkage mechanisms are symmetrically arranged on both sides of the inner walls of the mounting base and the top cover. Swinging spraying mechanisms are rotatably mounted on both sides of the inner walls of the mounting base and the top cover via bearings. A guide pushing mechanism is fixedly mounted on the top of the mounting base on one side of the top cover. Connecting strip 1 is provided on each of the two outer walls of the mounting base, and connecting strip 2 is provided on each of the two outer walls of the top cover.

[0007] As a further embodiment of the present invention, mounting side plates are fixedly installed at both ends of the bottom inner side of the mounting base, and a mounting frame is fixedly installed at the center of one side of the mounting base. The mounting frame is fixedly connected to the top of one of the mounting side plates. A drive motor is fixedly installed on the top of the mounting frame. Output shafts are fixedly connected to the output ends of the drive motor on both sides. The end of the output shaft away from the drive motor is rotatably connected to the side wall of the mounting base through a bearing. A drive gear is fixedly connected to the end of the output shaft located on the outside of the mounting base. A drive shaft is rotatably installed on the inner side of the mounting base at the position corresponding to the drive motor through a bearing. Drive gears are fixedly connected to both ends of the drive shaft, extending through the mounting base to the outside of the mounting base. The driven gears mesh with the drive gears. A drive protrusion is fixedly installed on the edge of the side of the driven gear. The drive protrusion is rotatably connected to the connecting strip at one end. Multiple drive transmission wheels are fixedly installed at equal intervals on the surface of the drive shaft located on the inner side of the mounting base.

[0008] As a further embodiment of the present invention, the conveying mechanism includes a mounting shaft, and both ends of the mounting shaft are rotatably connected to the inner wall of the mounting base or the top cover via bearings. Multiple conveying wheels are fixedly mounted at equal intervals on the surface of the mounting shaft located on the inner side of the mounting base or the top cover. Both ends of the mounting shaft are fixedly connected to a linkage turntable through the mounting base or the top cover. A linkage protrusion is fixedly mounted on the edge of the side of the linkage turntable. The linkage protrusion is rotatably connected to the side of the connecting strip or the connecting strip.

[0009] As a further embodiment of the present invention, the second conveying mechanism includes a second mounting shaft, and both ends of the second mounting shaft are rotatably connected to the inner wall of the mounting base or the top cover via bearings. Multiple conveying wheels are fixedly mounted at equal intervals on the inner surface of the second mounting shaft located on the mounting base or the top cover. Reciprocating pushers are fixedly mounted on both ends of the second mounting shaft located on the inner side of the mounting base or the top cover. Linkage turntables are fixedly connected to both ends of the second mounting shaft through the mounting base or the top cover. Linkage protrusions are fixedly mounted on the edge of the side of the linkage turntables. The linkage protrusions are rotatably connected to the side of the connecting strip or the connecting strip.

[0010] As a further embodiment of the present invention, the conveying mechanism three includes a mounting shaft three, and the two ends of the mounting shaft three are rotatably connected to the inner wall of the mounting base or the top cover through bearings. Multiple conveying wheels three are fixedly installed at equal intervals on the surface of the mounting shaft three located on the inner side of the mounting base or the top cover. The two ends of the mounting shaft three are respectively fixedly connected to the mounting base or the top cover through the mounting base or the top cover, and the linkage gears on the side of the mounting base and the top cover mesh with each other. A linkage protrusion three is fixedly installed at the edge of the side of the linkage gear, and the linkage protrusion three is rotatably connected to the side of the connecting strip one or the connecting strip two through the connection.

[0011] As a further embodiment of the present invention, the pushing linkage mechanism includes two pushing slides. The two pushing slides are respectively disposed at both ends of the conveying mechanism one, conveying mechanism two, and conveying mechanism three inside the mounting base or top cover. The pushing slides are provided with limiting grooves through them, and the limiting grooves are slidably connected to both ends of the mounting shaft one, mounting shaft two, and mounting shaft three. The two pushing slides are respectively fixedly mounted with swing pushers on the opposite sides, and the swing pushers are positioned corresponding to the guide pushing mechanism. The two ends of the two pushing slides are respectively fixedly connected with transverse moving pushers, and the transverse moving pushers are slidably connected to the inside of the reciprocating pushing frame.

[0012] As a further embodiment of the present invention, the oscillating spraying mechanism includes an oscillating shaft, and both ends of the oscillating shaft are rotatably connected to the mounting base or the inner wall of the top cover via bearings. Spray strips are fixedly installed on the surface of the oscillating shaft, and the spray strips move towards the copper foil surface of the corresponding conveying mechanism one, conveying mechanism two, and conveying mechanism three on the opposite side of the mounting base and the top cover. Oscillating push frames are fixedly installed at both ends of the oscillating shaft, and the oscillating push frames are slidably connected to the surface of the oscillating push frame.

[0013] As a further embodiment of the present invention, the guiding and pushing mechanism includes a concave frame, which is mounted on the top of the mounting base and located on the side of the top cover. Rectangular through slots are respectively provided on both sides of the concave frame. A mounting slide rod is symmetrically fixedly installed inside the rectangular through slot. A movable slider is slidably connected to the surfaces of the two mounting slide rods on the same side. Return springs are respectively sleeved on the surfaces of the mounting slide rods on both sides of the movable slider. A second mounting slide rod is symmetrically fixedly installed on the inner wall of the concave frame at the bottom of the rectangular through slot. A second movable slider is symmetrically slidably connected to the surfaces of the two mounting slide rods. Push bars are symmetrically fixedly installed on the bottom of slider two, and the push bars are mounted on the top of the corresponding conveying mechanism two. Push top bars are rotatably connected to the side of the movable slider two through pins, and the end of the push top bar away from the movable slider two is rotatably connected to the movable slider one through pins. Concave limiting frames are symmetrically fixedly installed on the bottom of both sides of the inner wall of the concave frame, and limiting top bars are slidably connected through the two concave limiting frames on the same side. The top of the limiting top bar is fixedly connected to the movable slider one, and the bottom of the limiting top bar is fixedly connected to a lifting push frame, and the lifting push frame is slidably connected through the inside of the reciprocating push frame.

[0014] A precision etching and forming process for axial flux motor PCB coils, the forming process comprising the following steps: S1 Power Feeding: After the equipment is powered on and started, the drive motor supported by the mounting base serves as the sole power source, outputting torque in both directions. The output shafts on both sides rotate synchronously with the motor, and the drive gears fixed at the ends rotate synchronously and mesh precisely with the driven gears at both ends of the drive shaft. Power is stably transmitted to the horizontally arranged drive shafts through spur gear transmission. Multiple sets of drive transmission wheels on the inner side of the shaft rotate synchronously. The drive protrusions on the outer edge of the driven gear rotate circumferentially with the gears, pulling the connecting strips on both sides to form a reciprocating drive structure. The connecting strips synchronously pull the linkage protrusions on the outer edges of all three transmission mechanisms on the base side, driving the three sets of conveying shafts to rotate synchronously in the same direction at a uniform speed. The transmission wheels 1, 2, and 3, which are equidistantly arranged on each shaft, form a multi-point continuous support conveying surface. The axial flux PCB copper foil coil to be etched is placed on the top surface of the lower conveying wheel set from the feeding end of the mounting base and is fed forward smoothly by the friction of the wheel body. S2 Plate Correction: When the copper foil coil moves with the lower conveying mechanism to the guide and push mechanism area on the top cover entrance side, the installation shaft of the second conveying mechanism synchronously drives the two integrated reciprocating push frames to make a circular rotation. The reciprocating push frame periodically lifts the lifting push frame. The lifting push frame, in conjunction with the top fixed limit bar, slides vertically upward along the concave limit frame, continuously pushing the moving slider one upward along the two parallel mounting slide rods. Simultaneously, it compresses the reset springs on the upper and lower sides of the slider to accumulate elastic potential energy. When the reciprocating push frame rotates to the low position, the lifting force disappears, and the reset spring releases its elastic force to pull the moving slider one to quickly reset downward. This achieves the stable up-and-down reciprocating cycle of the moving slider one along the slide rod. The moving slider one and the moving slider two are hinged to the push bar. The up-and-down movement of the moving slider one will push and pull the moving slider two to move horizontally back and forth along the horizontal mounting slide rod two through the top bar. The push bars symmetrically arranged at the bottom of the moving slider two fit against the two sides of the copper foil coil and continuously make micro-adjustments to limit the movement, automatically correcting the left-right tilt, front-back offset, and single-sided misalignment problems generated during the conveying process. S3 Double-Layer Clamping: The three-end linkage gears of the conveying mechanism inside the mounting base mesh with the corresponding linkage gears on the inner side of the top cover. When the lower linkage gear rotates in the forward direction, it drives the linkage gear on the top cover to rotate in the reverse direction. The connecting strip two on the outer side of the top cover receives the gear power and synchronously drives the conveying mechanism one, conveying mechanism two, and conveying mechanism three inside the top cover to rotate in the opposite direction at a uniform speed. The lower wheel set of the mounting base and the upper wheel set of the top cover form a double-layer opposing clamping and conveying channel, clamping the neatly arranged copper foil coil from both the top and bottom, preventing the copper foil from floating, sagging, or warping, and keeping the board completely horizontal and stable for feeding. The three layers of conveying wheels arranged in an alternating and equidistant manner fully cover the upper and lower surfaces of the copper foil, with no suspended force areas. The thin axial flux PCB coil will not be stretched or wrinkled due to single-point force. Under the action of double-layer clamping, the copper foil enters the closed etching space of the top cover at a uniform speed, isolating the etching liquid from splashing and improving the workshop working environment. S4 Linkage Spray: The reciprocating pusher at both ends of the conveying mechanism supplies power to the correction mechanism and is synchronously inserted into the lateral moving pusher of the push linkage mechanism. During the rotation, it continuously pushes and pulls two sets of symmetrically arranged pusher slides. The mounting base has a long strip-shaped limiting slide groove inside. The limiting slide groove is fitted on the end of each mounting shaft, restricting the pusher slide to slide horizontally back and forth along the shaft axis, preventing sliding jamming and deviation. The two pusher slides are integrated into a swing pusher on the opposite side. The reciprocating motion of the pusher slide drives the swing pushers on both sides to move synchronously left and right periodically. The swing pusher slides slide in contact with the swing pushers at both ends of the swing shaft, continuously pushing the swing pushers to deflect back and forth, converting the horizontal reciprocating mechanical motion into the swinging power of the spray bar. S5 Swing Etching: The swing pusher is continuously pushed by the swing pusher, which drives the entire swing shaft to swing back and forth around its own axis. The long strip spray bar fixed on the surface of the swing shaft is directly facing the copper foil passage area between the double-layer conveying mechanism. It sweeps back and forth synchronously with the swing shaft. The etching medium is continuously sprayed out from the liquid outlet of the spray bar. Relying on the spraying form of the spray bar sweeping back and forth at a uniform speed, the liquid can completely cover the entire board surface of the copper foil coil. There are no processing defects such as liquid accumulation, local over-corrosion, and corner leakage caused by fixed-point direct spraying. The base and top cover are each equipped with an independent swing spraying mechanism, which can spray and etch the front and back sides of the copper foil at the same time. Double-sided precision etching can be completed in one feed. The etching depth and line size are uniform and consistent, which greatly improves the consistency and pass rate of the finished axial flux motor PCB coil. S6 Continuous Discharge: The copper foil coil that has completed double-sided etching is continuously clamped and conveyed by the upper and lower double-layer conveying mechanism and sent out of the equipment from the other side of the top cover. The single coil completes the complete etching process. The drive motor keeps running, so the feeding, correction, conveying, double-sided swing etching and automatic discharge cycle can be completed without interruption. It is suitable for continuous processing conditions of large-scale automated production lines.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention, through the configuration of a drive motor, connecting strip one, connecting strip two, a pushing linkage mechanism, a swing pushing frame, and a spray bar, allows the equipment to start up. Upon power-up, the drive motor initiates operation, controlling the output shaft to drive the drive gear to rotate synchronously. The drive gear and driven gear precisely mesh, transmitting power stably to the drive shaft, enabling it to rotate smoothly in a circular motion within the base. With the connection of connecting strip one, the rotational power of the drive shaft is synchronously transmitted to multiple conveying structures within the equipment, causing conveying mechanisms one, two, and three to rotate synchronously in the same direction, providing basic power support for the copper foil coil conveying operation. Simultaneously, conveying mechanism three, mounted inside the top cover, precisely meshes with the conveying mechanism three inside the mounting base. Relying on the connection of connecting strip two, conveying mechanisms one, two, and three inside the top cover rotate synchronously in opposite directions until the copper foil coil to be processed smoothly moves to the etching operation area inside the top cover. During the copper foil coil conveying operation, the pushing linkage mechanism simultaneously starts its linkage operation, and the mounting frame... The reciprocating pusher, fixedly mounted at both ends of shaft two, rotates synchronously with the rotating shaft. Simultaneously, under the limiting and guiding action of the transverse moving pusher, the reciprocating pusher performs precise reciprocating sliding motion inside the transverse moving pusher. This allows the reciprocating sliding power of the reciprocating pusher to continuously push the pusher slide, causing the pusher slide to perform stable reciprocating sliding along the fixed trajectory at both ends of mounting shaft one and mounting shaft three. Under the reciprocating pushing and pulling action of the pusher slide, the swinging pusher is simultaneously driven to continuously swing, pushing the swinging pusher to perform reciprocating swinging motion. This, in turn, causes the spray bar to rely on the swinging rotating shaft as the axis to achieve stable and regular reciprocating swinging motion. During the swinging process, the spray bar continuously and evenly sprays the etching solution stored inside onto the surface of the precisely positioned copper foil coil. Thanks to the high-frequency uniform swinging spraying mode of the spray bar, the etching solution covers the entire surface of the copper foil coil without dead corners, accumulation, or omissions, completely avoiding the defects of uneven solution distribution, local over-etching, and local under-etching that exist in traditional fixed-point spraying. It can complete the fine and uniform etching process on the surface of the copper foil coil.

[0016] 2. This invention, through the configuration of a reciprocating pusher, a movable slider, a push bar, a push top bar, and a lifting pusher, allows the installation shaft two to rotate continuously and stably under the transmission action of the linkage turntable two during equipment operation. This synchronously drives the reciprocating pusher fixed at both ends of the installation shaft two to rotate circumferentially. During the rotation of the reciprocating pusher, a continuous pushing force is generated on the lifting pusher, driving it to move up and down regularly along a fixed trajectory, achieving a precise conversion of rotational power into linear lifting power. During the up-and-down reciprocating movement of the lifting pusher, the limiting top bar mounted at its top moves synchronously, continuously generating a vertical pushing force on the movable slider one. This pushes the movable slider one to make stable up-and-down sliding motion along the surface of the mounting slide bar one. During the sliding process of the movable slider one, it compresses the return spring sleeved on the outside of the mounting slide bar one, causing the return spring to undergo elastic compression deformation and accumulate rebound potential energy. When the lifting pusher descends... After the pushing force of the reset and limit top bar is released, the reset spring releases its elastic potential energy and pushes the first movable slider to slide back along the surface of the first mounting rod to reset. Through the two-way cooperation of mechanical pushing and spring rebound, the first movable slider can continuously and regularly slide up and down, ensuring the stable operation of the mechanism. While the first movable slider moves up and down along the first mounting rod, the second movable slider is simultaneously pulled along the surface of the second mounting rod by the linkage traction of the push top bar. The second movable slider is fixedly engaged with the push bar and can complete the position fine adjustment synchronously with the sliding of the second movable slider. Through the symmetrical limiting, pushing and correcting actions of the push bars on both sides, the copper foil coil is guided, corrected and limited in real time during the conveying process. Before the copper foil coil is conveyed to the etching area inside the top cover, the real-time correction of the push bars can completely correct the poor working conditions such as left and right tilting, position offset and front and back misalignment that occur during the conveying of the copper foil coil. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a cross-sectional structural diagram of the mounting base and the third conveying mechanism of the present invention. Figure 4 This is a schematic diagram of the mounting base and the oscillating spraying mechanism of the present invention; Figure 5This is a schematic diagram of the structure of transmission mechanism one, transmission mechanism two, and transmission mechanism three of the present invention; Figure 6 This is a schematic diagram of the drive motor and drive shaft of the present invention; Figure 7 This is a cross-sectional view of the top cover of the present invention; Figure 8 This is a schematic diagram of the structure for mounting the first rotating shaft of the present invention; Figure 9 This is a schematic diagram of the structure for mounting the second rotating shaft of the present invention; Figure 10 This is a schematic diagram of the structure for mounting the rotating shaft three in this invention; Figure 11 This is a schematic diagram of the structure of the three-stage conveying mechanism and the push-pull linkage mechanism of the present invention; Figure 12 This is a schematic diagram of the structure of the pusher plate and the lateral moving pusher frame of the present invention; Figure 13 This is a schematic diagram of the push linkage mechanism and the swing spraying mechanism of the present invention; Figure 14 This is a schematic diagram of the structure of the swing shaft and the swing pusher frame of the present invention; Figure 15 This is a schematic diagram of the structure for mounting the second rotating shaft and the concave frame of the present invention; Figure 16 This is a cross-sectional view of the concave frame and push bar of the present invention.

[0019] The attached diagram lists the components represented by each number as follows: 1. Mounting base; 101. Mounting side plate; 102. Mounting base frame; 103. Drive motor; 104. Output shaft; 105. Drive gear; 106. Drive shaft; 107. Driven gear; 108. Drive protrusion; 109. Drive conveyor wheel; 2. Top cover; 3. Conveying mechanism one; 301. Mounting shaft one; 302. Conveyor wheel one; 303. Linkage turntable one; 304. Linkage protrusion one; 4. Conveying mechanism two; 401. Mounting shaft two; 402. Conveyor wheel two; 403. Reciprocating push frame; 404. Linkage turntable two; 405. Linkage protrusion two; 5. Conveying mechanism three; 501. Mounting shaft three; 502. Conveyor wheel three; 503. Linkage... Gear; 504, Linkage Protrusion Three; 6, Push Linkage Mechanism; 601, Push Slide Plate; 602, Limiting Slide Groove; 603, Swing Push Frame; 604, Lateral Moving Push Frame; 7, Swing Spraying Mechanism; 701, Swing Rotary Shaft; 702, Spray Strip; 703, Swing Push Frame; 8, Guide Push Mechanism; 801, Concave Frame; 802, Rectangular Through Groove; 803, Mounting Slide Rod One; 804, Moving Slide Block One; 805, Return Spring; 806, Mounting Slide Rod Two; 807, Moving Slide Block Two; 808, Pushing Strip; 809, Pushing Top Strip; 810, Concave Limiting Frame; 811, Limiting Top Strip; 812, Lifting Push Frame; 9, Connecting Strip One; 10, Connecting Strip Two. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1-16 The present invention provides a technical solution: A precision etching and forming device for axial flux motor PCB coils includes a mounting base 1. A top cover 2 is fixedly mounted at the center of the top of the mounting base 1. Multiple conveying mechanisms 1, 2, and 3 are rotatably mounted on the inner walls of opposite sides of the mounting base 1 and the top cover 2 via bearings. The conveying mechanisms 1, 2, 4, and 3 are staggered and equidistantly arranged inside the mounting base 1 or the top cover 2. The positions of the conveying mechanisms 1, 2, 4, and 3 inside the mounting base 1 and the top cover 2 are corresponding. Pushing linkage mechanisms 6 are symmetrically arranged on both sides of the inner walls of the mounting base 1 and the top cover 2. Swinging spraying mechanisms 7 are rotatably mounted on both sides of the inner walls of the mounting base 1 and the top cover 2 via bearings. A guide pushing mechanism 8 is fixedly mounted on the top of the mounting base 1 on one side of the top cover 2. Connecting strips 1 and 9 are respectively provided on the outer two sides of the mounting base 1, and connecting strips 2 and 10 are respectively provided on the outer two sides of the top cover 2.

[0022] During operation, the power unit outputs torque and drives the internal transmission mechanisms 1, 2, 4 and 3 inside the mounting base 1 to rotate in the same direction via connecting bar 19. The corresponding transmission mechanisms 3 and 5 on the mounting base 1 and top cover 2 mesh with each other via linkage gear 503, and then drive the internal transmission mechanisms 1, 2, 4 and 3 inside the top cover 2 to rotate in opposite directions via connecting bar 210, forming a double-layer opposing conveying channel. The copper foil coil is fed in by the transmission mechanism on the side of the mounting base 1 closest to the guide pushing mechanism 8. It first passes through the guide pushing mechanism 8 to complete the pre-correction, and then is conveyed to the etching station inside the top cover 2. The synchronous operation of transmission mechanisms 1, 2, 4 and 3 drives the push linkage mechanism 6 to reciprocate, which in turn drives the swing spraying mechanism 7 to swing and spray the etching liquid. All mechanisms start and stop synchronously and match rhythm through mechanical linkage.

[0023] As a further embodiment of the present invention, mounting side plates 101 are fixedly mounted at both ends of the bottom inner side of the mounting base 1, and a mounting bracket 102 is fixedly mounted at the center of one side of the inner side of the mounting base 1. The mounting bracket 102 is fixedly connected to the top of one of the mounting side plates 101. A drive motor 103 is fixedly mounted on the top of the mounting bracket 102. Output shafts 104 are fixedly connected to the output ends on both sides of the drive motor 103, and the end of the output shaft 104 away from the drive motor 103 is rotatably connected to the side wall of the mounting base 1 through a bearing. The output shaft 104 is located on the outer side of the mounting base 1. One end is fixedly connected to a drive gear 105. A drive shaft 106 is rotatably mounted on the inner side of the mounting base 1 at a position corresponding to the drive motor 103 via a bearing. Both ends of the drive shaft 106 extend through the mounting base 1 to the outer side of the mounting base 1 and are respectively fixedly connected to driven gears 107, which mesh with the drive gear 105. A drive protrusion 108 is fixedly mounted on the edge of the side of the driven gear 107, and the drive protrusion 108 is rotatably connected to one end of the connecting strip 9. Multiple drive transmission wheels 109 are fixedly mounted at equal intervals on the inner surface of the drive shaft 106 located on the mounting base 1.

[0024] During operation, after the equipment is started, the output ends of the drive motor 103 drive the two output shafts 104 to rotate synchronously. The drive gears 105 on the extended sections of the output shafts 104 rotate synchronously. The drive gears 105 and the driven gears 107 at both ends of the drive shaft 106 mesh precisely, and the torque is transmitted to the drive shaft 106 so that it rotates in a uniform circular motion inside the mounting base 1. The drive protrusions 108 on the side edge of the driven gear 107 are hinged to the connecting strip 9. The connecting strip 9 works together to synchronously distribute the power to all the transmission mechanisms 1 3, 2 4 and 3 5 in the base, controlling the multiple sets of transmission mechanisms 1 3, 2 4 and 3 5 inside the mounting base 1 to rotate synchronously in the same direction.

[0025] As a further embodiment of the present invention, the conveying mechanism 3 includes a mounting shaft 301, and the two ends of the mounting shaft 301 are rotatably connected to the inner wall of the mounting base 1 or the top cover 2 via bearings. Multiple conveying wheels 302 are fixedly mounted at equal intervals on the inner surface of the mounting shaft 301 located on the mounting base 1 or the top cover 2. The two ends of the mounting shaft 301 are respectively fixedly connected to the linkage turntable 303 through the mounting base 1 or the top cover 2. A linkage protrusion 304 is fixedly mounted on the edge of the side of the linkage turntable 303. The linkage protrusion 304 is rotatably connected to the side of the connecting strip 9 or the connecting strip 10.

[0026] During operation, the power is used to pull the linkage protrusion 304 via connecting bar 9 or connecting bar 10, which drives the linkage turntable 303 and the mounting shaft 301 to rotate as a whole. The conveyor wheel 302 rotates at a constant speed with the shaft. The copper foil coil is conveyed forward by the friction of the conveyor wheel 302.

[0027] As a further embodiment of the present invention, the second conveying mechanism 4 includes a second mounting shaft 401, and both ends of the second mounting shaft 401 are rotatably connected to the inner wall of the mounting base 1 or the top cover 2 via bearings. Multiple conveying wheels 402 are fixedly mounted at equal intervals on the inner surface of the second mounting shaft 401 located on the mounting base 1 or the top cover 2. Reciprocating pusher frames 403 are fixedly mounted on both ends of the second mounting shaft 401 located on the inner side of the mounting base 1 or the top cover 2. Linkage turntables 404 are fixedly connected to both ends of the second mounting shaft 401 through the mounting base 1 or the top cover 2. Linkage protrusions 405 are fixedly mounted on the edge of the side of the linkage turntables 404. Linkage protrusions 405 are rotatably connected to the side of the connecting strip 9 or the connecting strip 10.

[0028] During operation, connecting bar 9 or connecting bar 10 drives the rotating turntable 404 to rotate, which in turn drives the mounting shaft 401 and the conveyor wheel 402 to transport copper foil. At the same time, the reciprocating pushers 403 at both ends of the mounting shaft 401 follow the shaft to make a circular rotation. One set of reciprocating pushers 403 is inserted into the transverse moving pusher 604 of the push linkage mechanism 6, driving the push linkage mechanism 6 to slide back and forth. The other set of reciprocating pushers 403 is inserted into the lifting pusher 812 of the guide push mechanism 8, providing lifting and reciprocating power for the front guide push mechanism 8.

[0029] As a further embodiment of the present invention, the conveying mechanism 35 includes a mounting shaft 3501, and the two ends of the mounting shaft 3501 are rotatably connected to the inner wall of the mounting base 1 or the top cover 2 via bearings. Multiple conveying wheels 3502 are fixedly mounted at equal intervals on the surface of the mounting shaft 3501 located on the inner side of the mounting base 1 or the top cover 2. The two ends of the mounting shaft 3501 are respectively fixedly connected to the mounting base 1 or the top cover 2 through the mounting base 1 or the top cover 2, and the linkage gears 503 on the sides of the mounting base 1 and the top cover 2 mesh with each other. A linkage protrusion 3504 is fixedly installed at the edge of the side of the linkage gear 503, and the linkage protrusion 3504 is rotatably connected to the side of the connecting strip 1 9 or the connecting strip 2 10.

[0030] During operation, the corresponding linkage gears 503 on the side of the mounting base 1 and the side of the top cover 2 mesh with each other. The linkage protrusions 504 on the side of the linkage gears 503 are respectively hinged to the connecting strips 9 and 10. The power on the side of the mounting base 1 drives the linkage gears 503 to rotate through the connecting strips 9. Through gear meshing, the linkage gears 503 on the side of the top cover 2 are driven to rotate in the opposite direction. Then, the connecting strips 10 synchronously drive all the conveying mechanisms 3, 4 and 5 on the side of the top cover 2 to rotate in the opposite direction, forming a double-layered opposing conveying channel.

[0031] As a further embodiment of the present invention, the push linkage mechanism 6 includes a push slide plate 601, and there are two push slide plates 601. The two push slide plates 601 are respectively disposed at both ends of the first conveying mechanism 3, the second conveying mechanism 4, and the third conveying mechanism 5 inside the mounting base 1 or the top cover 2. A limiting slide groove 602 is provided through the inside of the push slide plate 601, and the limiting slide groove 602 is slidably connected to both ends of the first mounting shaft 301, the second mounting shaft 401, and the third mounting shaft 501. A swing push frame 603 is symmetrically fixedly installed on the side of the two push slide plates 601 that is far away from each other, and the swing push frame 603 corresponds to the position of the guide push mechanism 8. A transverse moving push frame 604 is fixedly connected to both ends of the two push slide plates 601, and the transverse moving push frame 604 is slidably connected to the inside of the reciprocating push frame 403.

[0032] During operation, the reciprocating pusher 403 rotates with the second mounting shaft 401, and reciprocates within the transverse moving pusher 604, causing the pusher slide plate 601 to slide horizontally back and forth along both ends of each shaft. The limiting groove 602 limits the pusher slide plate 601 when it slides at both ends of each shaft, ensuring that the pusher slide plate 601 will not tilt or deflect during horizontal reciprocating sliding. The pusher slide plate 601 simultaneously drives the two swinging pushers 603 on both sides to swing back and forth, continuously pushing the swinging pusher 703 to swing.

[0033] As a further embodiment of the present invention, the swing spraying mechanism 7 includes a swing shaft 701, and the two ends of the swing shaft 701 are rotatably connected to the inner sidewall of the mounting base 1 or the top cover 2 through bearings. A spray strip 702 is fixedly installed on the surface of the swing shaft 701, and the spray strip 702 moves towards the copper foil surface of the corresponding conveying mechanism 1 3, conveying mechanism 2 4 and conveying mechanism 3 5 on the opposite side of the mounting base 1 and the top cover 2. A swing pusher 703 is fixedly installed on both ends of the swing shaft 701, and the swing pusher 703 is slidably connected to the surface of the swing pusher 603.

[0034] During operation, the bearings at both ends of the swing shaft 701 are fixed to the inner wall of the mounting base 1 or the top cover 2. The spray bar 702 fixed to the swing shaft 701 faces the copper foil conveying channel between the two conveying mechanisms. The swing pusher 703 fixed at both ends of the swing shaft 701 slides against the swing pusher 603. When the swing pusher 603 swings back and forth, it continuously moves the swing pusher 703, causing the spray bar 702 to swing back and forth left and right around the swing shaft 701 as the axis. The spray bar 702 swings synchronously and sprays the internal etching solution evenly onto the surface of the PCB copper foil coil that is fed at a constant speed.

[0035] As a further embodiment of the present invention, the guiding and pushing mechanism 8 includes a concave frame 801, which is mounted on the top of the mounting base 1 and located on the side of the top cover 2. Rectangular through slots 802 are respectively provided on both sides of the concave frame 801. A mounting slide rod 803 is symmetrically fixedly installed inside the rectangular through slot 802. A movable slider 804 is slidably connected to the surfaces of the two mounting slide rods 803 on the same side. Return springs 805 are respectively sleeved on the surfaces of the mounting slide rods 803 on both sides of the movable slider 804. A second mounting slide rod 806 is symmetrically fixedly installed on the inner wall of the concave frame 801 at the bottom of the rectangular through slot 802. A second movable slider 807 is symmetrically slidably connected to the surfaces of the two mounting slide rods 806. 7. A push bar 808 is symmetrically fixedly installed at the bottom, and the push bar 808 is mounted on the top of the corresponding conveying mechanism 2 4. The side of the movable slider 2 807 is rotatably connected to the push top bar 809 through a pin, and the end of the push top bar 809 away from the movable slider 2 807 is rotatably connected to the movable slider 1 804 through a pin. Concave limit frames 810 are symmetrically fixedly installed on the bottom of both sides of the inner wall of the concave frame 801, and the two concave limit frames 810 on the same side are slidably connected to the limit top bar 811 inside. The top of the limit top bar 811 is fixedly connected to the movable slider 1 804, and the bottom of the limit top bar 811 is fixedly connected to the lifting push frame 812, and the lifting push frame 812 is slidably connected to the inside of the reciprocating push frame 403. During operation, the rotating shaft 401 drives the reciprocating pusher 403 to rotate circumferentially, continuously pushing the lifting pusher 812 upward. The lifting pusher 812 drives the limiting top bar 811 to move upward along the concave limiting frame 810, pushing the moving slider 804 to slide upward along the mounting slide bar 803, compressing the energy stored in the return springs 805 on both sides. When the reciprocating pusher 403 rotates to the low position, the upward pushing force disappears, and the return spring 805 releases its elasticity to pull the moving slider 804 downward to reset. When the moving slider 804 moves up and down, the pushing top bar 809 pushes and pulls the moving slider 807 to slide horizontally along the mounting slide bar 806. The pushing bar 808 at the bottom of the moving slider 807 makes simultaneous left and right micro-adjustments, limiting, pushing and guiding the copper foil coil conveyed on both sides of the conveying mechanism 4, correcting the copper foil tilt, offset, and misalignment problems. The rectified copper foil is then sent into the etching area of ​​the top cover 2.

[0036] A precision etching process for axial flux motor PCB coils, comprising the following steps: S1 Power Feeding: After the equipment is powered on and started, the drive motor 103, supported by the mounting base 102, serves as the sole power source, outputting torque in both directions. The output shafts 104 on both sides rotate synchronously with the motor, and the drive gears 105 fixed at the ends rotate synchronously and precisely mesh with the driven gears 107 at both ends of the drive shaft 106. Power is stably transmitted to the horizontally arranged drive shaft 106 through spur gear transmission. Multiple sets of drive transmission wheels 109 on the inner side of the shaft rotate synchronously, and the drive protrusions 108 on the outer edge of the driven gears 107 rotate circumferentially with the gears, pulling the connecting strips 19 on both sides. A reciprocating drive structure is formed by connecting rods. Connecting bar 9 synchronously pulls the linkage protrusions 304, 405, and 504 on the outer edge of all conveying mechanisms 3, 4, and 5 on the base side, driving the three sets of conveying shafts to rotate synchronously and uniformly in the same direction. The conveying wheels 302, 402, and 502 arranged at equal intervals on each shaft form a multi-point continuous support conveying surface. The axial magnetic flux PCB copper foil coil to be etched is placed on the top surface of the lower conveying wheel set from the feeding end of the mounting base 1 and is fed forward smoothly by the friction of the wheel body. S2 Plate Correction: When the copper foil coil moves with the lower conveying mechanism to the guide pushing mechanism 8 area on the entrance side of the top cover 2, the mounting shaft 401 of the second conveying mechanism 4 synchronously drives the two-end integrated reciprocating push frame 403 to perform a circular rotation. The reciprocating push frame 403 periodically lifts the lifting push frame 812 upward. The lifting push frame 812, in conjunction with the top fixed limit bar 811, slides vertically upward along the concave limit frame 810, continuously pushing the moving slider 804 upward along the two parallel mounting slide rods 803, synchronously compressing the reset springs 805 on the upper and lower sides of the slider to accumulate elastic potential energy. When the reciprocating push frame 403 rotates... When the position is low, the lifting force disappears, and the return spring 805 releases its elasticity to pull the first movable slider 804 to quickly return to its original position. This enables the first movable slider 804 to move up and down in a stable cyclical motion along the slide bar. The first movable slider 804 and the second movable slider 807 are hinged to push the top bar 809. The up and down movement of the first movable slider 804 will push and pull the second movable slider 807 to move left and right along the horizontally installed slide bar 806 through the top bar. The push bars 808 symmetrically arranged at the bottom of the second movable slider 807 are in contact with the two sides of the copper foil coil and continuously make micro-adjustments to limit the position, automatically correcting the left and right tilting, front and back offset, and single-sided misalignment problems that occur during the conveying process. S3 Double-Layer Clamping: The linkage gear 503 at the end of the conveying mechanism 3 5 inside the mounting base 1 meshes with the linkage gear 503 at the corresponding position inside the top cover 2. When the lower linkage gear 503 rotates in the forward direction, it drives the linkage gear 503 on the side of the top cover 2 to rotate in the reverse direction. The connecting strip 2 10 on the outer side of the top cover 2 receives the gear power and synchronously drives the conveying mechanism 1 3, conveying mechanism 2 4, and conveying mechanism 3 5 inside the top cover 2 to rotate in the reverse direction at a uniform speed. The lower wheel set of the mounting base 1 and the upper wheel set of the top cover 2 form a double-layer opposing clamping and conveying channel, clamping the neat copper foil coil from both the top and bottom, preventing the copper foil from floating, sagging, or warping, and keeping the board completely horizontal and stable for feeding. The three layers of conveying wheels arranged in an alternating and equidistant manner fully cover the upper and lower surfaces of the copper foil, with no suspended force area. The thin axial flux PCB coil will not be stretched or wrinkled due to single-point force. Under the action of double-layer clamping, the copper foil enters the closed etching space of the top cover 2 at a uniform speed, isolating the etching liquid from splashing and improving the workshop working environment. S4 Linkage Spray: In addition to supplying power to the correction mechanism, the reciprocating pusher 403 at both ends of the conveying mechanism 2 4 is synchronously inserted into the transverse moving pusher 604 of the push linkage mechanism 6. During the rotation, it continuously pushes and pulls the two sets of symmetrically arranged pusher slides 601. The mounting base 1 has a long strip-shaped limiting slide groove 602 inside. The limiting slide groove 602 is fitted on the end of each mounting shaft, which restricts the pusher slide 601 to slide horizontally back and forth along the shaft axis, preventing sliding jamming and deviation. The two pusher slides 601 are separated from each other by an integrally formed swing pusher 603. The reciprocating motion of the pusher slide 601 drives the swing pushers 603 on both sides to move synchronously left and right periodically. The swing pusher 603 slides in contact with the swing pushers 703 at both ends of the swing shaft 701, continuously pushing the swing pushers 703 to deflect back and forth, converting the horizontal reciprocating mechanical motion into the swinging power of the spray bar 702. S5 Swing Etching: The swing pusher 703 is continuously pushed by the swing pusher 603, which drives the entire swing shaft 701 to swing back and forth around its own axis. The long strip spray bar 702 fixed on the surface of the swing shaft 701 is directly facing the copper foil passage area between the double-layer conveying mechanism. It follows the swing shaft 701 to sweep back and forth synchronously. The etching medium is continuously sprayed out from the liquid outlet of the spray bar 702. Relying on the spraying form of the uniform reciprocating sweep of the spray bar 702, the liquid can completely cover the entire upper and lower surfaces of the copper foil coil. There are no processing defects such as liquid accumulation, local over-corrosion, and corner leakage caused by fixed-point direct spraying. The base and top cover 2 are each equipped with an independent swing spraying mechanism 7, which can spray and etch the copper foil on both sides at the same time. Double-sided precision etching can be completed in one feed. The etching depth and line size are uniform and consistent, which greatly improves the consistency and pass rate of the finished axial flux motor PCB coil. S6 Continuous Discharge: The copper foil coil that has completed double-sided etching is continuously clamped and conveyed by the upper and lower double-layer conveying mechanism and sent out of the equipment from the other side of the top cover 2, completing the complete etching process of a single coil. The drive motor 103 keeps running, so that the feeding, correction, conveying, double-sided swing etching, and automatic discharge cycle operation can be completed without interruption, which is suitable for continuous processing conditions of large-scale automated production lines.

Claims

1. A precision etching and forming device for axial flux motor PCB coils, comprising a mounting base (1), characterized in that: A top cover (2) is fixedly installed at the center of the top of the mounting base (1). Multiple transmission mechanisms one (3), two (4), and three (5) are rotatably mounted on the inner wall of the opposite side of the mounting base (1) and the top cover (2) via bearings. The transmission mechanisms one (3), two (4), and three (5) are staggered and equidistantly arranged inside the mounting base (1) or the top cover (2). The transmission mechanisms one (3), two (4), and three (5) inside the mounting base (1) and the top cover (2) are... The three mechanisms (5) are positioned correspondingly. The inner walls of the mounting base (1) and the top cover (2) are symmetrically provided with push linkage mechanisms (6). The two sides inside the mounting base (1) and the top cover (2) are respectively rotatably installed with swing spraying mechanisms (7) via bearings. The top of the mounting base (1) is fixedly installed with a guide push mechanism (8) on one side of the top cover (2). The two outer walls of the mounting base (1) are respectively provided with connecting strip one (9), and the two outer walls of the top cover (2) are respectively provided with connecting strip two (10).

2. The precision etching and forming device for axial flux motor PCB coils according to claim 1, characterized in that: Mounting side plates (101) are fixedly installed at both ends of the bottom inner side of the mounting base (1). A mounting frame (102) is fixedly installed at the center of one side of the mounting base (1), and the mounting frame (102) is fixedly connected to the top of one of the mounting side plates (101). A drive motor (103) is fixedly installed on the top of the mounting frame (102). Output shafts (104) are fixedly connected to the output ends on both sides of the drive motor (103). The end of the output shaft (104) away from the drive motor (103) is rotatably connected to the side wall of the mounting base (1) through a bearing. The end of the output shaft (104) located outside the mounting base (1) is fixedly connected to a drive shaft. The drive gear (105) is mounted on the inner side of the mounting base (1) at a position corresponding to the drive motor (103) via a bearing. The two ends of the drive shaft (106) extend through the mounting base (1) to the outer side of the mounting base (1) and are respectively fixedly connected to driven gears (107). The driven gears (107) mesh with the drive gears (105). A drive protrusion (108) is fixedly installed on the edge of the side of the driven gear (107). The drive protrusion (108) is rotatably connected to one end of the connecting strip (9). Multiple drive transmission wheels (109) are fixedly installed at equal intervals on the surface of the drive shaft (106) located on the inner side of the mounting base (1).

3. The precision etching and forming device for axial flux motor PCB coils according to claim 1, characterized in that: The first conveying mechanism (3) includes a first mounting shaft (301), and the two ends of the first mounting shaft (301) are rotatably connected to the inner wall of the mounting base (1) or the top cover (2) through bearings. Multiple conveying wheels (302) are fixedly installed at equal intervals on the surface of the first mounting shaft (301) located inside the mounting base (1) or the top cover (2). The two ends of the first mounting shaft (301) are respectively fixedly connected to the first linkage turntable (303) through the mounting base (1) or the top cover (2). A first linkage protrusion (304) is fixedly installed at the edge of the side of the first linkage turntable (303). The first linkage protrusion (304) is rotatably connected to the side of the first connecting strip (9) or the second connecting strip (10).

4. The precision etching and forming device for axial flux motor PCB coils according to claim 3, characterized in that: The second conveying mechanism (4) includes a second mounting shaft (401), and both ends of the second mounting shaft (401) are rotatably connected to the inner wall of the mounting base (1) or the top cover (2) via bearings. Multiple conveying wheels (402) are fixedly installed at equal intervals on the inner surface of the second mounting shaft (401) located on the mounting base (1) or the top cover (2). Reciprocating pushers (403) are fixedly installed at both ends of the second mounting shaft (401) located on the inner side of the mounting base (1) or the top cover (2). Linkage turntables (404) are fixedly connected through the mounting base (1) or the top cover (2) at both ends of the second mounting shaft (401). Linkage protrusions (405) are fixedly installed at the edge of the side of the linkage turntables (404). Linkage protrusions (405) are rotatably connected through the side of the connecting strip (9) or the connecting strip (10).

5. The precision etching and forming device for axial flux motor PCB coils according to claim 4, characterized in that: The conveying mechanism three (5) includes a mounting shaft three (501), and the two ends of the mounting shaft three (501) are rotatably connected to the inner wall of the mounting base (1) or the top cover (2) through bearings. Multiple conveying wheels three (502) are fixedly installed at equal intervals on the surface of the mounting shaft three (501) located inside the mounting base (1) or the top cover (2). The two ends of the mounting shaft three (501) are fixedly connected to the mounting base (1) or the top cover (2) respectively through the mounting base (1) or the top cover (2), and the linkage gears (503) on the side of the mounting base (1) and the top cover (2) mesh with each other. A linkage protrusion three (504) is fixedly installed at the edge of the side of the linkage gear (503), and the linkage protrusion three (504) is rotatably connected to the side of the connecting strip one (9) or the connecting strip two (10).

6. The precision etching and forming device for axial flux motor PCB coils according to claim 5, characterized in that: The push linkage mechanism (6) includes a push slide plate (601), and there are two push slide plates (601). The two push slide plates (601) are respectively set at both ends of the first (3), the second (4) and the third (5) of the transmission mechanism inside the mounting base (1) or the top cover (2). The push slide plate (601) is provided with a limiting slide groove (602) through it, and the limiting slide groove (602) is slidably connected to both ends of the first (301), the second (401) and the third (501) of the mounting shaft. The two push slide plates (601) are respectively symmetrically fixedly installed on the side away from each other, and the position of the swing push frame (603) corresponds to the guide push mechanism (8). The two ends of the two push slide plates (601) are respectively fixedly connected with a transverse moving push frame (604), and the transverse moving push frame (604) is slidably connected to the inside of the reciprocating push frame (403).

7. The precision etching and forming device for axial flux motor PCB coils according to claim 6, characterized in that: The swing spraying mechanism (7) includes a swing shaft (701), and the two ends of the swing shaft (701) are rotatably connected to the inner wall of the mounting base (1) or the top cover (2) through bearings. A spray bar (702) is fixedly installed on the surface of the swing shaft (701), and the spray bar (702) moves towards the copper foil surface of the corresponding conveying mechanism one (3), conveying mechanism two (4) and conveying mechanism three (5) on the opposite side of the mounting base (1) and the top cover (2). A swing pusher (703) is fixedly installed on both ends of the swing shaft (701), and the swing pusher (703) is slidably connected to the surface of the swing pusher (603).

8. The precision etching and forming device for axial flux motor PCB coils according to claim 4, characterized in that: The guiding and pushing mechanism (8) includes a concave frame (801), which is mounted on the top of the mounting base (1) and located on the side of the top cover (2). Rectangular through slots (802) are respectively provided on both sides of the concave frame (801). A mounting slide rod (803) is symmetrically fixedly installed inside the rectangular through slot (802). A movable slider (804) is slidably connected to the surfaces of the two mounting slide rods (803) on the same side. A return spring (805) is sleeved on the surfaces of the mounting slide rods (803) on both sides of the movable slider (804). A mounting slide rod (806) is symmetrically fixedly installed on the inner wall of the concave frame (801) at the bottom of the rectangular through slot (802). A movable slider (807) is symmetrically slidably connected to the surfaces of the two mounting slide rods (806). A push bar (808) is symmetrically fixedly installed at the bottom, and the push bar (808) is mounted on the top of the corresponding conveying mechanism two (4). The side of the movable slider two (807) is rotatably connected to a push top bar (809) through a pin, and the end of the push top bar (809) away from the movable slider two (807) is rotatably connected to the movable slider one (804) through a pin. Concave limit frames (810) are symmetrically fixedly installed on the bottom of both sides of the inner wall of the concave frame (801), and the two concave limit frames (810) on the same side are slidably connected to a limit top bar (811) inside. The top of the limit top bar (811) is fixedly connected to the movable slider one (804), and the bottom of the limit top bar (811) is fixedly connected to a lifting push frame (812), and the lifting push frame (812) is slidably connected to the inside of the reciprocating push frame (403).

9. A precision etching and forming process for an axial flux motor PCB coil, comprising a precision etching and forming apparatus for an axial flux motor PCB coil according to any one of claims 1-8, characterized in that, The molding process includes the following steps: S1 Power Feeding: After the equipment is powered on and started, the drive motor (103) carried by the mounting base (102) serves as the sole power source, outputting torque in both directions. The output shafts (104) on both sides rotate synchronously with the motor, and the drive gears (105) fixed at the ends rotate synchronously and precisely mesh with the driven gears (107) at both ends of the drive shaft (106). The power is stably transmitted to the horizontally arranged drive shaft (106) by relying on spur gear transmission. Multiple sets of drive transmission wheels (109) on the inner side of the shaft rotate synchronously, and the drive protrusions (108) on the outer edge of the driven gear (107) rotate circumferentially with the gear, pulling the connecting strips (9) on both sides. A reciprocating drive structure is formed by connecting rods. Connecting bar 1 (9) synchronously pulls the linkage protrusions 1 (304), 2 (405), and 3 (504) on the outer edge of all conveying mechanisms 1 (3), 2 (4), and 3 (5) on the base side, driving the three sets of conveying shafts to rotate synchronously and uniformly in the same direction. The conveying wheels 1 (302), 2 (402), and 3 (502) arranged at equal intervals on each shaft form a multi-point continuous support conveying surface. The axial magnetic flux PCB copper foil coil to be etched is placed on the top surface of the lower conveying wheel group from the feeding end of the mounting base (1) and is fed forward smoothly by relying on the friction of the wheel body. S2 plate correction: When the copper foil coil moves with the lower conveying mechanism to the guide pushing mechanism (8) area on the entrance side of the top cover (2), the installation shaft (401) of the second conveying mechanism (4) synchronously drives the two-end integrated reciprocating push frame (403) to make a circular rotation. The reciprocating push frame (403) periodically lifts the lifting push frame (812) upward. The lifting push frame (812) is linked to the top fixed limit bar (811) and slides vertically upward along the concave limit frame (810). It continuously pushes the moving slider (804) upward along the two parallel mounting slide rods (803), and synchronously compresses the reset springs (805) on the upper and lower sides of the slider to accumulate elastic potential energy. When the reciprocating push frame (403) When the slider rotates to the low position, the lifting force disappears, and the return spring (805) releases its elastic force to pull the first slider (804) to quickly return to the lower position. This enables the first slider (804) to move up and down in a stable cycle along the slide bar. The first slider (804) and the second slider (807) are hinged to push the top bar (809). The first slider (804) moves up and down and pushes the second slider (807) along the horizontally installed slide bar (806) to move left and right in a reciprocating manner. The push bars (808) symmetrically arranged at the bottom of the second slider (807) fit the two sides of the copper foil coil and continuously make fine adjustments to the limit, automatically correcting the left and right tilt, front and back offset, and single-sided misalignment problems that occur during the conveying process. S3 Double-layer clamping: The end linkage gear (503) of the transmission mechanism three (5) inside the mounting base (1) meshes with the corresponding linkage gear (503) on the inner side of the top cover (2). When the lower linkage gear (503) rotates in the forward direction, it drives the linkage gear (503) on the side of the top cover (2) to rotate in the reverse direction. The outer connecting strip two (10) of the top cover (2) receives the gear power and synchronously drives the transmission mechanism one (3), transmission mechanism two (4), and transmission mechanism three (5) inside the top cover (2) to rotate in the reverse direction at a uniform speed. (1) The lower wheel assembly and the top cover (2) the upper wheel assembly form a double-layer opposing clamping and conveying channel, clamping the regular copper foil coil from both the upper and lower sides, preventing the copper foil from floating, drooping, warping and deforming, keeping the board completely horizontal and stable for feeding, the three layers of conveying wheel assemblies arranged in an alternating and equidistant manner fully cover the upper and lower surfaces of the copper foil, with no suspended force area, the thin axial flux PCB coil will not be stretched and wrinkled due to single-point force, the copper foil enters the top cover (2) at a uniform speed under the double-layer clamping action, sealing the etching space, isolating the etching liquid from splashing, and improving the workshop working environment; S4 Linkage Spraying: The reciprocating pusher (403) at both ends of the second (4) conveyor mechanism, in addition to supplying power to the correction mechanism, is synchronously inserted into the transverse moving pusher (604) of the push linkage mechanism (6). During the rotation, it continuously pushes and pulls the two sets of symmetrically arranged pusher slides (601). The mounting base (1) has a long strip-shaped limiting groove (602) inside. The limiting groove (602) is fitted on the ends of each mounting shaft, restricting the pusher slide (601) to slide horizontally back and forth only along the axis of the shaft. The two push slides (601) are separated from each other by an integrally formed swing push frame (603). The push slide (601) reciprocates and drives the swing push frames (603) on both sides to move synchronously left and right periodically. The swing push frame (603) slides and contacts the swing push frame (703) at both ends of the swing shaft (701), continuously pushing the swing push frame (703) to deflect back and forth, converting the horizontal reciprocating mechanical motion into the swing power of the spray bar (702). S5 Swing Etching: The swing pusher (703) is continuously pushed by the swing pusher (603), which drives the entire swing shaft (701) to swing back and forth around its own axis. The long strip spray (702) fixed on the surface of the swing shaft (701) faces the copper foil passage area between the double-layer conveying mechanism and follows the swing shaft (701) to sweep back and forth synchronously. The etching medium is continuously sprayed out from the liquid outlet of the spray strip (702). Relying on the spray form of the uniform back and forth sweeping of the spray strip (702), the liquid can completely cover the entire upper and lower surfaces of the copper foil coil. There are no processing defects such as liquid accumulation, local over-corrosion, and corner leakage caused by fixed-point direct spraying. The base and the top cover (2) are each equipped with an independent swing spraying mechanism (7), which can spray and etch the copper foil on both sides at the same time. Double-sided precision etching can be completed in one feeding. The etching depth and line size are uniform and consistent, which greatly improves the consistency and pass rate of the finished product of the axial flux motor PCB coil. S6 Continuous discharge: The copper foil coil that has completed double-sided etching is continuously clamped and conveyed by the upper and lower double-layer conveying mechanism and sent out of the equipment from the other side of the top cover (2) to complete the complete etching process of a single coil. The drive motor (103) keeps running, so that the feeding, correction, conveying, double-sided swing etching and automatic discharge cycle operation can be completed without interruption, which is suitable for continuous processing conditions of large-scale automated production lines.

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