A quick-change tooth protection device for a flat wire motor and a quick-change method

Abstract

This invention belongs to the technical field of motor processing equipment, and provides a quick-change tooth protection device and method for flat wire motors. It includes a base plate, on which an upper tooth protection mechanism, a lower tooth protection mechanism, and a conveying mechanism are sequentially arranged from top to bottom. The lower tooth protection mechanism has a stator fixed to it. Each of the upper and lower tooth protection mechanisms integrates a quick-change module. The quick-change module has a degree of freedom to reciprocate along a first direction and includes a tooth protection assembly for protecting the flat wire conductors of the stator. The conveying mechanism is located on the movement path of the quick-change module along the first direction. This invention, by setting up a quick-change module with a tooth protection assembly and a conveying mechanism, allows the quick-change module to be detached from the upper and lower tooth protection mechanisms and then conveyed to the target position via the conveying mechanism. This reduces the difficulty of changing the tooth protection assembly structure, lowers manual maintenance costs, saves debugging time, and increases equipment efficiency.

Description

Technical Field

[0001] This invention belongs to the technical field of motor processing equipment, and specifically relates to a quick-change tooth protection device and quick-change method for flat wire motors. Background Technology

[0002] In the new energy motor industry, the twisting process is crucial, as it precisely bends and shapes the leads of the stator windings in flat wire motors. The tooth protection mechanism plays a vital role in the twisting machine, ensuring minimal deviations in the twisting angle, length, and position of all flat wires from the same batch and specification of stator motors through precise mechanical control.

[0003] like Figure 1a As shown, this is the stator structure of an existing flat wire motor. One end is the welded end (end A in the figure), and the other end is the crown end (end B in the figure). When reverse-twisting the welded end, the flat wire conductor at the root of both the welded end and the crown end needs to be in a vertical state. Therefore, wedges need to be inserted at the root position (points a and b in the figure, which are between adjacent stator slots, which are located on the inner surface of the stator core). This corrects the deformation of the flat wire conductor, ensuring the installation accuracy and electrical performance of the flat wire. The stator after reverse twisting is as follows: Figure 1b As shown.

[0004] However, in order to meet the production of different stators, it is often necessary to change the tooth protection mechanism of the torsion head machine. This structural change is difficult, and the precision of the tooth protection mechanism itself after the change makes the installation and debugging precision requirements of the torsion head machine extremely high, and it also increases the labor maintenance cost in the later stage. Summary of the Invention

[0005] To address the problems in the background art, the present invention proposes a quick-change tooth protection device for flat wire motors.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: This application provides a quick-change tooth protection device for flat wire motors, comprising: The substrate has an upper tooth protection mechanism, a lower tooth protection mechanism, and a conveying mechanism arranged sequentially from top to bottom. The lower tooth protection mechanism is fixed with a stator. The upper and lower tooth protection mechanisms each integrate a quick-change module; the quick-change modules integrated in the upper and lower tooth protection mechanisms each have a degree of freedom to reciprocate along the first direction and include a tooth protection assembly for protecting the flat wire conductors of the stator. The conveying mechanism is located on the moving path of the quick-change module along the first direction, and is used to transport the quick-change module removed from the upper tooth protection mechanism or the lower tooth protection mechanism from the disassembly position to the target position; or to move the quick-change module of the tooth protection mechanism to be installed or the quick-change module of the lower tooth protection mechanism from the target position to the disassembly position.

[0007] Furthermore, the upper mouthguard mechanism includes: The upper platform is fixedly connected to columns at both ends, and the columns are fixed to the upper surface of the base plate; The first cylinder is mounted on the upper surface of the upper platform, and the cylinder shaft of the first cylinder passes through the upper platform and is connected to an adapter plate. The tooth protection assembly is detachably connected to the surface of the adapter plate away from the first cylinder. The tooth protection assembly constitutes a quick-change module of the upper tooth protection mechanism. Several guide rods are located around the first cylinder and pass through the upper platform to connect with the adapter plate.

[0008] Furthermore, several connecting rods are mounted circumferentially on the surface of the tooth protection assembly, and a first positioning pin is mounted at the end of each connecting rod. The first positioning pin is detachably connected to the adapter plate.

[0009] Furthermore, the lower dental guard mechanism includes: The lower platform has detachable lifting plates at both ends; a tooth protection assembly is installed on the lower surface of the lower platform; the lower platform and the tooth protection assembly constitute a quick-change module of the lower tooth protection mechanism. A support plate is installed below the lifting plate; a base plate is installed below the support plate and is mounted on the surface of the base plate. A guide sleeve is fixedly connected between the support plate and the base plate. A guide post is slidably connected to the guide sleeve. The guide post passes through the support plate and is fixedly connected to the lifting plate. The second cylinder is installed on the surface of the support plate away from the lifting plate; the cylinder shaft of the second cylinder passes through the support plate and is fixedly connected to the lifting plate.

[0010] Furthermore, an annular positioning sleeve is installed on the upper surface of the lower platform, and a positioning hole is opened in the center of the lower platform. The positioning hole is coaxially arranged with the positioning sleeve and is used to place the stator.

[0011] Furthermore, second positioning pins are installed at both ends of the upper surface of the lower platform for detachable connection with the upper tooth protection mechanism.

[0012] Furthermore, the conveying mechanism includes symmetrically arranged support frames and several rollers mounted on the upper surface of the support frames; The support frame is mounted on the surface of the substrate; Rollers are used to transport quick-change modules that have been disassembled or are about to be installed.

[0013] Furthermore, the first direction is a direction perpendicular to the upper surface of the substrate.

[0014] Furthermore, the mouthguard assembly includes: The protective cover, fixed plate, and movable plate are coaxially arranged. The protective cover and the fixed plate are fixedly connected, and the protective cover and the fixed plate together form a cavity. The movable plate is rotatably installed in the cavity. The protective cover is also equipped with a support, on which a servo motor is mounted. The motor shaft of the servo motor is connected to a drive gear, which meshes with a sector gear. The sector gear is fixedly connected to the movable disc. Several tooth-protecting wedges that slide radially are installed on the bottom surface of the fixed disk. The tooth-protecting wedges slide back and forth as the movable disk moves.

[0015] Furthermore, the bottom surface of the fixed disk is provided with several radially extending grooves, and all the grooves are distributed in an array around the circumference of the fixed disk, with a tooth-protecting wedge slidably installed in each groove; The surface of the movable disk has guide grooves that are the same number as the sliding grooves. All guide grooves are arc-shaped and distributed in an array along the circumference of the movable disk. A guide block is fixedly connected to the surface of the tooth-protecting wedge, and the guide block is slidably installed in the guide groove.

[0016] Furthermore, it also includes a torsion mechanism; The torsion mechanism is mounted on the surface of the substrate, located below the lower tooth protection mechanism, and is used to reverse the torsion of the stator hairpin coil fixed on the lower tooth protection mechanism.

[0017] This application also provides a quick-change method, using the above-mentioned quick-change tooth protection device for flat wire motors, including the following steps: The lower tooth guard mechanism, which integrates a quick-change module, is lowered to the disassembly / removal position on the surface of the conveyor mechanism. The quick-change module of the tooth protection mechanism is removed and transported to the target position via a conveyor mechanism; The upper tooth guard mechanism, which integrates a quick-change module, is lowered to the disassembly / removal position on the surface of the conveyor mechanism. The quick-change module of the upper tooth protection mechanism is disassembled and transported to the target position via a conveying mechanism; The replacement quick-change module for the upper tooth guard mechanism is transported from the target position to the disassembly position via a conveying mechanism and integrated into the upper tooth guard mechanism. The upper tooth protection mechanism rises, and the quick-change module for the lower tooth protection mechanism is transported from the target position to the disassembly position via the conveying mechanism and integrated into the lower tooth protection mechanism.

[0018] The beneficial effects of this invention are: 1. The present invention is provided with a quick-change module containing a tooth protection component and a conveying mechanism, which allows the quick-change module to be removed from the upper and lower tooth protection mechanisms and then conveyed to the target position through the conveying mechanism. This reduces the difficulty of changing the tooth protection component structure, reduces manual maintenance costs, saves debugging time, and increases equipment working efficiency. 2. This invention, by setting up a tooth protection assembly, utilizes the rotation of the movable disc to drive the tooth protection wedge block to slide radially along the fixed disc, thereby inserting the movable wedge block into the root of the welding end and the crown end, ensuring that the flat wire conductor at the root position is not affected by the torsion effect of the torsion mechanism, thus ensuring the processing quality of the flat wire motor.

[0019] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description and the drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1a A schematic diagram of the stator structure before processing is shown; Figure 1b A schematic diagram of the stator structure after machining is shown; Figure 2a A schematic diagram of the structure of a quick-change tooth protection device (excluding the torsion mechanism) for a flat wire motor according to the present invention is shown; Figure 2b A schematic diagram of the structure of a quick-change tooth protection device (including a torsion mechanism) for a flat wire motor according to the present invention is shown; Figure 3a A schematic diagram of the upper tooth guard mechanism is shown; Figure 3b The diagram shows the connection relationship of the tooth guard components in the upper tooth guard mechanism; Figure 4a A schematic diagram of the lower tooth guard mechanism is shown; Figure 4b A schematic diagram of the quick-change module in the lower tooth guard mechanism is shown; Figure 5a A top view of the teeth guard assembly is shown; Figure 5b A bottom view of the mouthguard assembly is shown; Figure 5c A schematic diagram of the movable disc of the tooth protector assembly is shown; Figure 5d A schematic diagram of the fixing disc of the tooth guard assembly is shown; Figure 5e A different layout diagram of the second cylinder of the tooth guard assembly is shown; Figure 6 A schematic diagram of the conveying mechanism of the present invention is shown; Figure 7 A flowchart of a quick-change method according to the present invention is shown.

[0022] In the diagram: 1. Base plate; 2. Upper tooth protection mechanism; 201. Column; 202. Upper platform; 203. First cylinder; 204. Adapter plate; 205. Guide rod; 206. Connecting rod; 207. First positioning pin; 3. Lower tooth protection mechanism; 301. Second cylinder; 302. Lifting plate; 303. Lower platform; 304. Second positioning pin; 305. Positioning sleeve; 306. Support plate; 307. Base plate; 4. Conveying mechanism; 401. Support frame; 402. Roller; 5. Stator; 6. Tooth protection assembly; 601. Servo motor; 602. Protective cover; 603. Sector gear; 604. Fixed plate; 6041. Slide groove; 605. Tooth protection wedge; 606. Drive gear; 607. Movable plate; 6071. Guide groove; 7. Torsion mechanism. Detailed Implementation

[0023] 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 embodiments of the present invention, 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.

[0024] like Figure 2a As shown, this is a quick-change tooth protector device for flat wire motors, which enables rapid assembly and disassembly of the tooth protector assembly 6, adapting to the processing requirements of the stator hairpin coil of the flat wire motor. The base plate 1 at the bottom of the device serves as the mounting foundation, which can be installed on the ground using anchor bolts. Simultaneously, the surface of the base plate 1 is equipped with an upper tooth protector mechanism 2, a lower tooth protector mechanism 3, and a conveying mechanism 4, arranged sequentially from top to bottom. The stator 5 is fixedly mounted on the lower tooth protector mechanism 3, and all mechanisms work together to achieve the tooth protector operation and quick-change function.

[0025] Both the upper tooth protection mechanism 2 and the lower tooth protection mechanism 3 integrate quick-change modules. Each quick-change module has the freedom to reciprocate along a first direction (perpendicular to the upper surface of the substrate 1), and each quick-change module includes a tooth protection assembly 6 for protecting the flat conductors of the stator 5. The quick-change modules can be disassembled and replaced as a whole, allowing the tooth protection assembly 6 to be disassembled and replaced as a whole. The conveying mechanism 4 is arranged along the movement path of the quick-change modules in the first direction, providing bidirectional conveying functionality: it can transport quick-change modules disassembled from the upper tooth protection mechanism 2 or the lower tooth protection mechanism 3 from the disassembly / assembly position to the target position, and it can also move quick-change modules to be installed from the target position to the disassembly / assembly position, providing transfer support for the quick-change process.

[0026] like Figure 2b As shown, the equipment is also equipped with a torsion mechanism 7, which is installed on the surface of the base plate 1 and located below the lower tooth protection mechanism 3. It is specifically used to perform reverse torsion on the hairpin coil of the stator 5 fixed on the lower tooth protection mechanism 3. During the torsion processing of the hairpin coil of the stator 5, the deformation of the coil can be corrected by the reverse torsion of the torsion mechanism 7, ensuring the installation accuracy and electrical performance of the coil, and cooperating with the tooth protection operations of the upper tooth protection mechanism 2 and the lower tooth protection mechanism 3.

[0027] like Figure 3a As shown, the upper tooth protection mechanism 2 includes a column 201, an upper platform 202, a first cylinder 203, a transition plate 204, a guide rod 205, a connecting rod 206, and a first positioning pin 207. Specifically, the column 201 is vertically fixed to the upper surface of the base plate 1, adopting a symmetrical structure. The two ends of the upper platform 202 are fixedly connected to the column 201. The first cylinder 203 is installed on the upper surface of the upper platform 202, and the cylinder shaft passes through the upper platform 202 and is fixedly connected to the transition plate 204 located below the upper platform 202.

[0028] The tooth guard assembly 6 is detachably connected to the surface of the adapter plate 204 away from the first cylinder 203, wherein the tooth guard assembly 6 constitutes a quick-change module of the upper tooth guard mechanism 2. To ensure the motion stability of the first cylinder 203 during driving, several guide rods 205 are also installed on the upper platform 202. The guide rods 205 are distributed around the first cylinder 203 and pass through the upper platform 202 to be fixedly connected to the adapter plate 204, forming a guiding constraint to prevent the adapter plate 204 from shifting during up and down movement.

[0029] like Figure 3b As shown, in order to enhance the reliability of the detachable connection between the tooth guard assembly 6 and the adapter plate 204, several connecting rods 206 are installed circumferentially on the surface of the tooth guard assembly 6 (such as the surface of the fixed plate 604). The ends of the connecting rods 206 are fixedly installed with first positioning pins 207, and the detachable connection between the connecting rods 206 and the adapter plate 204 is achieved through the first positioning pins 207.

[0030] During operation, the first cylinder 203 drives the adapter plate 204 to move up and down along the first direction (the direction perpendicular to the base plate 1), moving the tooth protection assembly 6 to the position on the stator 5 where tooth protection is required. Then, the tooth protection wedge 605 of the tooth protection assembly 6 is inserted between the flat wire conductors of the stator 5. When replacement is required, the tooth protection assembly 6 and the adapter plate 204 can be separated by removing the first positioning pin 207, allowing the tooth protection assembly 6 to be transferred to the conveying mechanism 4 as an independent quick-change module.

[0031] like Figure 4a As shown, the lower tooth protection mechanism 3 includes a second cylinder 301, a lifting plate 302, a lower platform 303, a support plate 306, and a base plate 307. The lifting plate 302 is detachably connected to both ends of the lower platform 303, and the tooth protection assembly 6 is installed on the lower surface of the lower platform 303. Together, they constitute the quick-change module of the lower tooth protection mechanism 3.

[0032] A support plate 306 and a base plate 307 are sequentially arranged below the lifting plate 302, with the base plate 307 fixedly mounted on the surface of the base plate 1. A guide sleeve 308 is fixedly connected between the support plate 306 and the base plate 307, and a guide post 309 is slidably connected inside the guide sleeve 308. The guide post 309 passes through the support plate 306 and is fixedly connected to the lifting plate 302, providing guidance for the lifting of the lifting plate 302. The power drive adopts a second cylinder 301, which is installed on the surface of the support plate 306 away from the lifting plate 302 (the lower surface of the support plate 306). The cylinder shaft passes through the support plate 306 and is fixedly connected to the lifting plate 302. The extension and retraction of the second cylinder 301 drives the lifting plate 302 to move up and down in the first direction, thereby driving the lower platform 303 and the tooth guard assembly 6 to move synchronously. like Figure 4b As shown, in order to achieve precise positioning and installation of the stator 5, an annular positioning sleeve 305 is installed on the upper surface of the lower platform 303. A positioning hole is opened in the center of the lower platform 303. The positioning hole and the positioning sleeve 305 are coaxially arranged. The stator 5 is placed in the positioning hole and is circumferentially limited by the positioning sleeve 305 to ensure the coaxiality of the stator 5 and the tooth protection assembly 6.

[0033] In addition, the upper surface of the lower platform 303 is equipped with second positioning pins 304 at both ends. The second positioning pins 304 can be detachably connected to the column 201 of the upper tooth protection mechanism 2, which strengthens the overall connection stability of the upper tooth protection mechanism 2 and the lower tooth protection mechanism 3 and avoids relative displacement during operation.

[0034] During operation, the second cylinder 301 drives the lifting plate 302 to rise, which in turn moves the lower platform 303 and the tooth protection assembly 6 closer to the stator 5 to complete the lower tooth protection operation. During quick change, the connection structure between the lower platform 303 and the lifting plate 302 is disassembled, and the quick change module consisting of the lower platform 303 and the tooth protection assembly 6 can be transferred to the conveying mechanism 4.

[0035] like Figures 5a-5dAs shown, the tooth protection assembly 6 includes a protective cover 602, a fixed disk 604, and a movable disk 607 arranged coaxially. The protective cover 602 is fixedly connected to the fixed disk 604, and the two together form a closed cavity. The movable disk 607 is installed in the cavity through a rotating structure and can rotate around the axis.

[0036] pass Figure 5a It can be seen that a support is installed on the surface of the protective cover 602, and a servo motor 601 is fixedly installed on the support; combined with Figure 5b As can be seen, the motor shaft of the servo motor 601 extends into the cavity and is connected to the drive gear 606. The drive gear 606 meshes with the sector gear 603, and the sector gear 603 is fixedly connected to the movable disk 607. During operation, the servo motor 601 drives the drive gear 606 to rotate, which in turn drives the sector gear 603 to swing through gear meshing, thereby driving the movable disk 607 to reciprocate within the cavity.

[0037] Combination Figure 5d It is known that a number of radially extending grooves 6041 are formed on the inner bottom surface of the fixed disk 604. All grooves 6041 are evenly distributed in an array around the circumference of the fixed disk 604, and a tooth-protecting wedge 605 is slidably installed in each groove 6041. Correspondingly, a number of guide grooves 6071, the same as the number of grooves 6041, are formed on the surface of the movable disk 607. All guide grooves 6071 are arc-shaped and distributed in an array around the circumference of the movable disk 607. A guide block is fixedly connected to the surface of the tooth-protecting wedge 605, and the guide block is slidably installed in the guide groove 6071. During operation, the movable disk 607 reciprocates, driving the guide grooves 6071 to move synchronously. Through the cooperation of the guide grooves 6071 and the guide blocks, the tooth-protecting wedges 605 are driven to slide radially back and forth along the grooves 6041, realizing the opening and closing of the tooth-protecting wedges 605, thereby adapting to the tooth protection requirements of the flat wire conductor (coil) of the stator 5 and preventing deformation or damage to the flat wire conductor during processing.

[0038] It should be noted that, in the optional embodiments, the specific installation of the servo motor 601 can be adjusted according to interference issues between devices, for example... Figure 5a The servo motor 601 in the design can be vertically installed because it does not interfere with other devices. Figure 5e Since the servo motor 601 in the middle will interfere with the lower platform 303 when placed vertically, it can be installed horizontally.

[0039] like Figure 6As shown, the conveying mechanism 4 includes symmetrically arranged support frames 401, which are fixedly installed on the surface of the base plate 1 and located on the quick-change module movement path of the upper tooth protection mechanism 2 and the lower tooth protection mechanism 3. Several rollers 402 are installed on the upper surface of the support frame 401. The rollers 402 are arranged in parallel and rotate flexibly. When the quick-change module is disassembled from the disassembly / assembly position, it can be directly placed on the rollers 402. The quick-change module is conveyed to the target position by the rolling of the rollers 402. The quick-change module to be installed can be moved from the target position to the disassembly / assembly position by the rollers 402, which greatly reduces the intensity of manual handling, improves the quick-change efficiency, and avoids the quick-change module from being bumped or damaged during transportation.

[0040] It should be noted that during operation, the lower platform 303 can be driven to fall onto the roller 402 by the second cylinder 301. Then, by removing the second positioning pin 304, the lower platform 303 is separated from the lower tooth protection mechanism 3. After that, the lower platform 303 and the tooth protection assembly 6 are transported to the target position by the conveying mechanism 4. Similarly, the tooth protection assembly 6 of the upper tooth protection mechanism 2 is lowered onto the roller 402. Then, the tooth protection assembly 6 is separated from the adapter plate 204. Finally, the adapter plate 204 is moved to the target position by the conveying mechanism 4.

[0041] like Figure 7 The image shows a quick-change method for a quick-change tooth protection device for a flat wire motor, as described above. The steps are as follows: S1: Lower the lower gear guard mechanism 3, which integrates the quick-change module, to the disassembly / assembly position on the surface of the conveying mechanism 4. Specifically, the second cylinder 301 in the lower gear guard mechanism 3 drives the entire quick-change module to descend until the lower platform 303 of the quick-change module is placed on the roller 402.

[0042] S2: Remove the quick-change module from the lower tooth protection mechanism 3 and transport it to the target position via the conveying mechanism 4. Specifically, remove the second positioning pin 304, remove the quick-change module from the lower tooth protection mechanism 3, and then transport it to the other end via the conveying mechanism 4.

[0043] S3: Lower the upper tooth protection mechanism 2, which integrates the quick-change module, to the disassembly / removal position on the surface of the conveying mechanism 4. Specifically, the quick-change module is lowered by the first cylinder 203 until the fixed plate 604 is placed on the roller 402, and then the tooth protection assembly 6 is removed from the adapter plate 204.

[0044] S4: Remove the quick-change module from the upper tooth protection mechanism 2 and transport it to the target position via the conveying mechanism 4.

[0045] S5: The replacement quick-change module for the upper tooth guard mechanism 2 is transported from the target position to the disassembly / assembly position via the conveying mechanism 4 and integrated into the upper tooth guard mechanism 2. The process is exactly the reverse of the disassembly process.

[0046] S6: The upper tooth protection mechanism 2 rises, and the quick-change module for the lower tooth protection mechanism 3 is transported from the target position to the disassembly / assembly position via the conveying mechanism 4 and integrated into the lower tooth protection mechanism 3. The process is exactly the reverse of the disassembly process.

[0047] 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; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A quick-change tooth protection device for flat wire motors, characterized in that, include: The substrate (1) has an upper tooth protection mechanism (2), a lower tooth protection mechanism (3) and a conveying mechanism (4) arranged sequentially from top to bottom on its surface. The lower tooth protection mechanism (3) is fixed with a stator (5). The upper tooth protection mechanism (2) and the lower tooth protection mechanism (3) each integrate a quick-change module; the quick-change modules integrated in the upper tooth protection mechanism (2) and the lower tooth protection mechanism (3) each have a degree of freedom to reciprocate along the first direction, and include a tooth protection assembly (6) for protecting the flat wire conductor of the stator (5). The tooth protection component (6) includes: A protective cover (602), a fixed plate (604), and a movable plate (607) are coaxially arranged. The protective cover (602) is fixedly connected to the fixed plate (604), and the protective cover (602) and the fixed plate (604) together form a cavity. The movable plate (607) is rotatably installed in the cavity. The protective cover (602) is also equipped with a support, on which a servo motor (601) is mounted. The motor shaft of the servo motor (601) is connected to a drive gear (606), and the drive gear (606) meshes with a sector gear (603). The sector gear (603) is fixedly connected to the movable disk (607). The inner bottom surface of the fixed disk (604) is equipped with a plurality of radially sliding tooth-protecting wedges (605), which slide back and forth as the movable disk (607) moves; The conveying mechanism (4) is located on the moving path of the quick-change module along the first direction, and is used to transport the quick-change module removed from the upper tooth protection mechanism (2) or the lower tooth protection mechanism (3) from the disassembly position to the target position; or to move the quick-change module of the upper tooth protection mechanism (2) or the quick-change module of the lower tooth protection mechanism (3) to be installed from the target position to the disassembly position.

2. The quick-change tooth protection device for a flat wire motor according to claim 1, characterized in that, The upper tooth protection mechanism (2) includes: The upper platform (202) has columns (201) fixedly connected to both ends, and the columns (201) are fixed to the upper surface of the substrate (1); The first cylinder (203) is mounted on the upper surface of the upper platform (202), and the cylinder shaft of the first cylinder (203) passes through the upper platform (202) and is connected to the adapter plate (204). The tooth protection assembly (6) is detachably connected to the surface of the adapter plate (204) away from the first cylinder (203); the tooth protection assembly (6) constitutes a quick-change module of the upper tooth protection mechanism (2). Several guide rods (205) are located around the first cylinder (203) and pass through the upper platform (202) to connect with the adapter plate (204).

3. A quick-change tooth protection device for a flat wire motor according to claim 2, characterized in that, The tooth protection assembly (6) has several connecting rods (206) installed circumferentially on its surface. The ends of the connecting rods (206) are equipped with first positioning pins (207), which are detachably connected to the adapter plate (204).

4. A quick-change tooth protection device for a flat wire motor according to claim 1, characterized in that, The lower tooth protection mechanism (3) includes: The lower platform (303) is detachably connected to the lifting plates (302) at both ends; the lower surface of the lower platform (303) is equipped with the tooth protection assembly (6); the lower platform (303) and the tooth protection assembly (6) constitute the quick-change module of the lower tooth protection mechanism (3); A support plate (306) is provided below the lifting plate (302); a base plate (307) is provided below the support plate (306), and the base plate (307) is mounted on the surface of the base plate (1); A guide sleeve (308) is fixedly connected between the support plate (306) and the base plate (307). A guide post (309) is slidably connected to the guide sleeve (308). The guide post (309) passes through the support plate (306) and is fixedly connected to the lifting plate (302). The second cylinder (301) is mounted on a surface of the support plate (306) away from the lifting plate (302); the cylinder shaft of the second cylinder (301) passes through the support plate (306) and is fixedly connected to the lifting plate (302).

5. A quick-change tooth protection device for a flat wire motor according to claim 4, characterized in that, An annular positioning sleeve (305) is installed on the upper surface of the lower platform (303). A positioning hole is opened in the center of the lower platform (303). The positioning hole is coaxially arranged with the positioning sleeve (305) and is used to place the stator (5).

6. A quick-change tooth protection device for a flat wire motor according to claim 4, characterized in that, The lower platform (303) has second positioning pins (304) installed at both ends of its upper surface, which are used to detachably connect to the upper tooth protection mechanism via the second positioning pins (304).

7. A quick-change tooth protection device for a flat wire motor according to claim 1, characterized in that, The conveying mechanism (4) includes a symmetrically arranged support frame (401) and a plurality of rollers (402) mounted on the upper surface of the support frame (401). The support frame (401) is mounted on the surface of the substrate (1); The roller (402) is used to transport the quick-change module after disassembly or before installation.

8. A quick-change tooth protection device for a flat wire motor according to claim 1, characterized in that, The first direction is perpendicular to the upper surface of the substrate (1).

9. A quick-change tooth protection device for a flat wire motor according to claim 1, characterized in that, The bottom surface of the fixed disk (604) is provided with a plurality of radially extending grooves (6041), and all the grooves (6041) are arranged in a circumferential array along the fixed disk (604), and the tooth-protecting wedge (605) is slidably installed in each groove (6041). The surface of the movable disk (607) is provided with guide grooves (6071) in the same number as the sliding grooves (6041). All the guide grooves (6071) are arc-shaped and distributed in an array around the circumference of the movable disk (607). The tooth-protecting wedge (605) has a guide block fixedly connected to its surface, and the guide block is slidably installed in the guide groove (6071).

10. A quick-change tooth protection device for a flat wire motor according to claim 1, characterized in that, It also includes a torsion mechanism (7); The torsion mechanism (7) is mounted on the surface of the substrate (1) and located below the lower tooth protection mechanism (3) for reversing the twist of the hairpin coil of the stator (5) fixed on the lower tooth protection mechanism (3).

11. A quick-change method, using a quick-change tooth protection device for a flat wire motor according to any one of claims 1-10, characterized in that, Includes the following steps: The lower tooth protection mechanism (3) with the integrated quick-change module is lowered to the disassembly position on the surface of the conveying mechanism (4); Remove the quick-change module of the tooth protection mechanism (3) and transport it to the target position via the conveying mechanism (4); The upper tooth guard mechanism (2) with the quick-change module is lowered to the disassembly position on the surface of the conveying mechanism (4); The quick-change module of the upper tooth protection mechanism (2) is disassembled and transported to the target position via the conveying mechanism (4); The replacement quick-change module for the upper tooth protection mechanism (2) is transported from the target position to the disassembly position via the conveying mechanism (4) and integrated into the upper tooth protection mechanism (2). The upper tooth protection mechanism (2) rises and the quick-change module for the lower tooth protection mechanism (3) is transported from the target position to the disassembly position via the conveying mechanism (4) and integrated into the lower tooth protection mechanism (3).

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