New energy driven motor stator coil cutting device

Abstract

A stator coil flattening device for a new energy drive motor, relating to the field of motors, includes a frame. The top of the frame is provided with a support bracket, a mounting frame, and a support platform. The support bracket is located at the front of the mounting frame. A rotatable iron core fixture is provided at the front of the mounting frame. The iron core of the stator coil is fitted around the outer periphery of the iron core fixture. The support platform is movably positioned on the top of the frame. Above the support platform is a liftable first lifting plate. The top of the first lifting plate is provided with a liftable reference plate and a liftable cutter. The reference plate has a limiting half-hole and multiple limiting holes arranged sequentially from top to bottom. The front end face of the cutter is against the rear end face of the reference plate. This invention is specifically designed for flattening the stator coil of a new energy drive motor, ensuring that while the copper wire winding to be flattened is flattened, other copper wire windings that should not be flattened are also flattened.

Description

Technical Field

[0001] This invention relates to the field of electric motors, specifically to a device for flattening the stator coils of a new energy drive motor. Background Technology

[0002] The stator coil of a new energy drive motor is equivalent to the motor's "power heart," primarily responsible for converting electrical energy into magnetic energy to propel the vehicle forward. The stator coil consists of an iron core, insulating paper sleeves, and copper wire windings. The iron core ring has multiple slots. During production, the insulating paper is first folded into insulating paper sleeves, then inserted into each slot, and finally the copper wire windings pass through the insulating paper sleeves. After all the copper wire windings are inserted, the ends of most adjacent copper wire windings need to be welded. However, after insertion, the ends of adjacent copper wire windings that need to be welded often cannot align, making successful welding impossible. Therefore, before welding the copper wire windings, the ends of the windings to be welded need to be cut flat. Currently, there are existing stator coil cutting machines in the technology, such as the stator coil cutting machine for motors disclosed in patent publication number CN206820612U. However, the existing stator coil cutting machines are applied to the stator coils of generators and can only cut all the ends of the copper wire windings flat. For the stator coils of new energy drive motors, it is not required that all the ends of the copper wire windings be cut flat during the production process. Therefore, the existing stator coil cutting machines are not suitable for cutting the stator coils of new energy drive motors. Summary of the Invention

[0003] The present invention provides a stator coil cutting and flattening device for new energy drive motors, the main purpose of which is to overcome the problem that existing stator coil cutting machines are not suitable for cutting and flattening stator coils of new energy drive motors.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A stator coil cutting device for a new energy drive motor includes a frame. The top of the frame is provided with a support bracket, a mounting frame, and a support platform. The support bracket supports the stator coil and is located on the front side of the mounting frame. A rotatable iron core fixture is provided on the front side of the mounting frame. The iron core of the stator coil is fitted around the outer periphery of the iron core fixture. The support platform is movably positioned on the top of the frame. Above the support platform is a liftable first lifting plate. The top of the first lifting plate is provided with a liftable reference plate and a liftable cutter. The reference plate has a defined half-hole and multiple defined holes arranged sequentially from top to bottom. The height of the defined half-hole is half the height of the defined hole. The front end face of the cutter is against the rear end face of the reference plate.

[0006] Furthermore, the support frame includes a mounting frame, a first connecting rod, two first connecting blocks, and two symmetrical support seats. The two first connecting blocks are located on the left and right sides of the mounting frame, respectively. The first connecting rod passes through the top of the mounting frame, and the two ends of the first connecting rod extend out of the left and right sides of the mounting frame, respectively. The two ends of the first connecting rod are connected to the two first connecting blocks, respectively, and the two support seats are connected to the top of the two first connecting blocks, respectively.

[0007] Furthermore, the support includes a second connecting rod, two rotating rollers arranged vertically and horizontally offset, and two second connecting blocks symmetrically arranged front and rear. The second connecting rod is connected between the two second connecting blocks, and the two rotating rollers are rotatably connected between the two second connecting blocks.

[0008] Furthermore, the mounting bracket is U-shaped. The top of each of the two vertical sections of the mounting bracket is provided with a first rod hole and a first slot. The first slot communicates with the first rod hole. The first connecting rod passes through the first rod hole of each of the two vertical sections of the mounting bracket. The top of each of the two vertical sections of the mounting bracket is provided with a first bolt hole and a first threaded hole. The first bolt hole and the first threaded hole are located above and below the first slot, respectively. A first bolt, threadedly connected to the first threaded hole, passes through the first bolt hole. The bottom of each of the two first connecting blocks is provided with a second rod hole and a second slot. The second slot communicates with the second rod hole. The first connecting rod passes through the second rod hole of each of the two first connecting blocks. The bottom of each of the two first connecting blocks is provided with a second bolt hole and a second threaded hole. The second threaded hole and the second bolt hole are located above and below the second slot, respectively. A second bolt, threadedly connected to the second threaded hole, passes through the second bolt hole.

[0009] Furthermore, the top of the first connecting block is U-shaped, and both vertical parts of the top of the first connecting block are provided with a third rod hole, a third groove, and a through hole. The third groove communicates with the third rod hole and the through hole. The through hole is located at the bottom of the third groove. The second connecting rod passes through the third rod hole in the two vertical parts of the top of the first connecting block. Both vertical parts of the top of the first connecting block are provided with a third bolt hole and a third threaded hole. The third bolt hole and the third threaded hole are located on the left and right sides of the third groove, respectively. A third bolt is threaded through the third bolt hole and connected to the third threaded hole.

[0010] Furthermore, the rear end of the mounting frame is provided with a servo motor and a reducer connected to the servo motor. The output shaft of the reducer is connected to a rotating shaft. The front end of the rotating shaft is connected to the iron core fixture. The rear outer periphery of the iron core fixture is provided with a retaining edge. The outer periphery of the iron core fixture is provided with multiple clamping pieces that are clamped to the inner groove of the iron core. The iron core fixture is provided with two symmetrical and retractable tensioning blocks. One end of the two tensioning blocks can extend out of the iron core fixture and press against the inner periphery of the iron core.

[0011] Furthermore, the iron core fixture has two movable channels arranged left and right. Each tensioning block corresponds to one movable channel and is located in the corresponding movable channel. The tensioning block has a slit. An abutment block located in the slit is fixed in the movable channel. A spring is provided in the slit. The two ends of the spring abut against the abutment block and the side wall of the slit, respectively. The front end of the iron core fixture has a sleeve hole. A tapered sleeve is provided in the sleeve hole. The front end of the iron core fixture has a fourth threaded hole. The tapered sleeve has a fourth bolt hole. A fourth bolt is threaded through the fourth bolt hole and threadedly connected to the fourth threaded hole. The outer periphery of the tapered sleeve abuts against the other end of the two tensioning blocks. The other end face of the tensioning block is an inclined arc surface adapted to the outer periphery of the tapered sleeve.

[0012] Furthermore, the rear end of the iron core fixture is provided with a positioning plate, the positioning plate is provided with several copper wire positioning holes for the ends of the copper wire windings to pass through, the front end of the mounting frame is connected to a plurality of circumferentially distributed connectors, each connector is connected to a rolling bearing near the end of the iron core fixture, the rolling bearing abuts against the rear end of the positioning plate, and the reference plate is located on the rear side of the positioning plate.

[0013] Furthermore, the top of the frame is provided with a mounting base and a support rod. The mounting base is located on one side of the mounting frame. The side of the mounting base near the mounting frame is provided with a first slide rail. The side of the mounting frame near the mounting base is provided with a first slider that slides with the first slide rail. The top of the mounting base is provided with a first hand-cranked screw. A first screw mating block and a second screw mating block are connected inside the mounting frame. The first screw mating block is provided with a first screw threaded hole that threads with the first hand-cranked screw. The second screw mating block is provided with a second screw threaded hole through which the second hand-cranked screw passes. The top of the support rod extends into the mounting frame, and the bottom of the second hand-cranked screw abuts against the top of the support rod.

[0014] Furthermore, the top of the frame is provided with an opening, two second slide rails, and a linear slide module that drives the support platform to move back and forth. The two second slide rails are located on the left and right sides of the opening, respectively. The linear slide module is located on one side of one of the second slide rails, and the slide of the linear slide module is connected to one side of the support platform. The bottom of the support platform is provided with two sets of second sliders that slide in cooperation with the two second slide rails. The bottom of the support platform is provided with a cylinder, which is located inside the opening. The piston rod of the cylinder is connected to a first lifting plate. The top surface of the first lifting plate is provided with a first connecting seat. The reference plate is connected to the top of the first connecting seat. The bottom of the first lifting plate is provided with an electric cylinder, which is located inside the opening. A second lifting plate is provided above the first lifting plate. The piston rod of the electric cylinder is connected to the second lifting plate. The top of the second lifting plate is provided with a second connecting seat. The cutter is connected to the top of the second connecting seat.

[0015] As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following advantages: The stator coil is mounted on the iron core fixture. Each column of copper wire windings of the stator coil includes three sets of copper wire windings to be cut flat arranged vertically, or includes one uncut copper wire winding arranged vertically and two to three sets of copper wire windings to be cut flat. Each set of copper wire windings to be cut flat consists of two copper wire windings that are adjacent vertically. The reference plate rises and then moves forward, allowing each set of copper wire windings to be cut flat to pass through a defined hole in a top-to-bottom order. If there is a single uncut copper wire winding, it passes through a defined half-hole. The cutter rises and cuts the ends of each set of copper wire windings to be flattened sequentially from bottom to top. If a non-flattened copper wire winding is encountered, since it is located at the top, the rising distance of the cutter can be controlled to prevent it from being cut. After one set of copper wire windings to be flattened is completed, the cutter and the reference plate are reset sequentially. Then, the iron core fixture rotates a certain angle to flatten the next set of copper wire windings to be flattened. The reference plate and the cutter repeat the above actions to complete the flattening of the next set of copper wire windings to be flattened, until all copper wire windings to be flattened are flattened. This invention is specifically designed for flattening the stator coils of new energy drive motors. While flattening the copper wire windings that should be flattened, it also avoids flattening copper wire windings that should not be flattened. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the present invention.

[0017] Figure 2 This is a structural diagram of the present invention from another angle.

[0018] Figure 3 This is a structural diagram of the support frame of the present invention.

[0019] Figure 4This is an exploded view of the support frame of the present invention.

[0020] Figure 5 This is an exploded view of the support frame of the present invention from another angle.

[0021] Figure 6 This is a structural diagram showing the connection between the mounting frame and the iron core tooling of the present invention.

[0022] Figure 7 This is an exploded view of the structure of the mounting frame and iron core tooling of the present invention.

[0023] Figure 8 This is a diagram of the lifting structure of the reference plate and the cutter in this invention.

[0024] Figure 9 This is a diagram showing the lifting structure of the reference plate and cutter at another angle.

[0025] Figure 10 This is a structural diagram showing the stator coil mounted on this invention.

[0026] Figure 11 This is a structural diagram of the stator coil, where only a portion of the copper wire winding is shown. Detailed Implementation

[0027] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0028] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] Reference Figure 1 , Figure 2 , Figures 8 to 11 A stator coil cutting device for a new energy drive motor includes a frame 1. The top of the frame 1 is provided with a support bracket 2, a mounting frame 3, and a support platform 4. The support bracket 2 supports the stator coil 20 and is located in front of the mounting frame 3. A rotatable iron core fixture 5 is provided in front of the mounting frame 3. The iron core 203 of the stator coil 20 is fitted around the outer periphery of the iron core fixture 5. The support platform 4 is movably positioned on top of the frame 1. Above the support platform 4 is a liftable first lifting plate 6. The top of the first lifting plate 6 is provided with a liftable reference plate 7 and a liftable cutter 8. The reference plate 7 has a limiting half-hole 71 and three limiting holes 72, arranged sequentially from top to bottom. The height of the limiting half-hole 71 is half the height of the limiting holes 72. The front end face of the cutter 8 is attached to the rear end face of the reference plate 7.

[0031] Reference Figure 1 and Figure 3 The support frame 2 includes a mounting frame 21, a first connecting rod 22, two first connecting blocks 23, and two symmetrical support seats 24. The two first connecting blocks 23 are located on the left and right sides of the mounting frame 21, respectively. The first connecting rod 22 passes through the top of the mounting frame 21, and its two ends extend out of the left and right sides of the mounting frame 21, respectively. The two ends of the first connecting rod 22 are connected to the two first connecting blocks 23, respectively. The two support seats 24 are connected to the top of the two first connecting blocks 23, respectively.

[0032] Reference Figures 3 to 5The mounting bracket 21 is U-shaped. Each of the two vertical sections of the mounting bracket 21 has a first rod hole 211 and a first groove 212 at its top. The first groove 212 communicates with the first rod hole 211, and the first connecting rod 22 passes through the first rod hole 211 in both vertical sections of the mounting bracket 21. The top of each of the two vertical sections of the mounting bracket 21 has a first bolt hole 213 and a first threaded hole 214, located above and below the first groove 212, respectively. A first bolt, threaded into the first threaded hole 214, passes through the first bolt hole 213. During installation, the first connecting rod 22 passes through the first rod hole 211 in both vertical sections of the mounting bracket 21, and then the first bolt is tightened, reducing the gap in the first groove 212. At this point, the upper and lower parts of the first rod hole 211 can clamp the first connecting rod 22. Each of the two first connecting blocks 23 has a second rod hole 231 and a second groove 232 at its bottom. The second groove 232 communicates with the second rod hole 231. The first connecting rod 22 passes through the second rod hole 231 of the two first connecting blocks 23. Each of the two first connecting blocks 23 has a second bolt hole 233 and a second threaded hole 234 at its bottom. The second threaded hole 234 and the second bolt hole 233 are located above and below the second groove 232, respectively. A second bolt is threaded through the second bolt hole 233 and threaded into the second threaded hole 234. When the second bolt is tightened, the gap of the second groove 232 decreases, and the upper and lower parts of the second rod hole 231 can clamp the first connecting rod 22. When the second bolt is loosened, the first connecting block 23 can slide left and right on the first connecting rod 22, thereby adjusting the position of the first connecting block 23 and the support 24. When the first connecting block 23 and the support 24 are adjusted to the desired position, the second bolt can be tightened again. In this embodiment, there are two first connecting rods 22 arranged one in front of the other. The first rod hole 211 on the two vertical parts of the mounting bracket 21 and the second rod hole 231 on the first connecting block 23 are each provided with two corresponding holes.

[0033] Reference Figures 3 to 5 , Figure 10 and Figure 11 The support 24 includes a second connecting rod 241, two vertically staggered rotating rollers 242, and two symmetrically arranged second connecting blocks 243. The second connecting rod 241 is connected between the two second connecting blocks 243, and the two rotating rollers 242 are rotatably connected between the two second connecting blocks 243. The stator coil 20 is placed between the two supports 24, and the outer periphery of the iron core 203 of the stator coil 20 is in contact with the rotating rollers 242. When the stator coil 20 rotates, the rotating rollers 242 also rotate accordingly.

[0034] Reference Figures 3 to 5The top of the first connecting block 23 is U-shaped. Each of the two vertical sections at the top of the first connecting block 23 has a third rod hole 235, a third groove 236, and a through hole 237. The third groove 236 communicates with the third rod hole 235 and the through hole 237, and the through hole 237 is located at the bottom of the third groove 236. The second connecting rod 241 passes through the third rod hole 235 in the two vertical sections at the top of the first connecting block 23. Each of the two vertical sections at the top of the first connecting block 23 has a third bolt hole 238 and a third threaded hole 239. The third bolt hole 238 and the third threaded hole 239 are located on the left and right sides of the third groove 236, respectively. A third bolt, threaded into the third threaded hole 239, passes through the third bolt hole 238. When the third bolt is tightened, the gap of the third groove 236 becomes smaller, and the left and right parts of the third rod hole 235 can clamp the second connecting rod 241; when the third bolt is loosened, the second connecting rod 241 can rotate, thereby adjusting the opening and closing degree of the two support seats 24; when the support seats 24 are adjusted to the required angle, the third bolt can be tightened again.

[0035] Reference Figure 3 and Figure 10 The first connecting block 23 and the support 24 can be adjusted in position in the left and right directions, and the support 24 can also be adjusted in rotation angle, so that the support frame 2 can adapt to stator coils 20 of different specifications.

[0036] Reference Figure 1 , Figure 6 , Figure 7 , Figure 10 and Figure 11 The rear end of the mounting frame 3 is provided with a servo motor 31 and a reducer 32 connected to the servo motor 31. The output shaft of the reducer 32 is connected to a rotating shaft 33. The front end of the rotating shaft 33 is connected to the iron core fixture 5. The servo motor 31 drives the iron core fixture 5 to rotate through the reducer 32 and the rotating shaft 33. The outer circumference of the rear part of the iron core fixture 5 is provided with a retaining edge 51, which abuts against the rear end of the iron core 203 of the stator coil 20. When the retaining edge 51 abuts against the rear end of the iron core 203 of the stator coil 20, it means that the stator coil 20 is installed in place. The outer circumference of the iron core fixture 5 is provided with three clamping pieces 52 that are clamped into the inner groove 2031 of the iron core 203. The clamping pieces 52 are clamped into the inner groove 2031 of the iron core 203 to prevent the iron core 203 of the stator coil 20 from rotating freely with the iron core fixture 5. The iron core fixture 5 is provided with two symmetrical and retractable tensioning blocks 53 inside. One end of the two tensioning blocks 53 can extend out of the iron core fixture 5 and press against the inner circumference of the iron core 203. After the two tensioning blocks 53 press against the inner circumference of the iron core 203, they prevent the stator coil 20 from moving back and forth.

[0037] Reference Figure 6 , Figure 7 and Figure 10 The iron core fixture 5 has two movable channels 54 arranged on the left and right. Each tensioning block 53 corresponds to one movable channel 54 and is located in the corresponding movable channel 54. The tensioning block 53 has a cut 531. An abutment block 55 located in the cut 531 is fixed in the movable channel 54. The abutment block 55 is connected to the iron core fixture 5. A spring 532 is provided in the cut 531. The two ends of the spring 532 abut against the abutment block 55 and the side wall of the cut 531, respectively. The front end of the iron core fixture 5 is provided with a sleeve hole 56, and a tapered sleeve 57 is provided inside the sleeve hole 56. The front end of the iron core fixture 5 is provided with a fourth threaded hole 58. The tapered sleeve 57 is provided with a fourth bolt hole 571. A fourth bolt that is threadedly connected to the fourth threaded hole 58 passes through the fourth bolt hole 571. The outer periphery of the tapered sleeve 57 abuts against the other end of the two tensioning blocks 53. The other end face of the tensioning block 53 is an inclined arc surface that matches the outer periphery of the tapered sleeve 57. As the fourth bolt is tightened, the tapered sleeve 57 moves further back. As it moves back, the tapered sleeve 57 pushes the two tensioning blocks 53 outward from the circumference of the core fixture 5, thereby pressing against the inner circumference of the core 203. When the tensioning blocks 53 move outward, the spring 532 is compressed. When the fourth bolt is loosened, the tapered sleeve 57 moves forward, and under the elastic force of the spring 532, the tensioning blocks 53 simultaneously retract inward. After the tensioning blocks 53 are reset, the stator coil 20 can be pulled forward from the core fixture 5.

[0038] Reference Figure 6 , Figure 7 , Figure 10 and Figure 11 The iron core fixture 5 has a positioning plate 9 at its rear end. The positioning plate 9 has several copper wire positioning holes 91 for the ends of the copper wire winding 201 to be cut flat and the copper wire winding 202 not to be cut flat to pass through. The front end of the mounting frame 3 is connected to a plurality of circumferentially distributed connectors 34. Each connector 34 is connected to a rolling bearing 35 near the end of the iron core fixture 5. The rolling bearing 35 abuts against the rear end of the positioning plate 9. The reference plate 7 is located on the rear side of the positioning plate 9. Before the stator coil 20 is installed into the core fixture 5, the ends of the copper wire winding 201 to be cut and the copper wire winding 202 not to be cut are passed through the corresponding copper wire positioning holes 91. Then the stator coil 20 is installed into the core fixture 5. The positioning disk 9 is fixed between the bend at the rear end of the copper wire winding and the rolling bearing 35. The positioning disk 9 positions the copper wire winding 201 to be cut during cutting and also strengthens the rigidity of the copper wire winding 201 during cutting to prevent deformation of the copper wire winding 201 during cutting. When the core fixture 5 rotates, the stator coil 20 and the positioning disk 9 rotate together, and the rolling bearing 35 can rotate with the rotation of the positioning disk 9.

[0039] Reference Figure 1 , Figure 2 and Figure 6 The frame 1 has a mounting base 10 and a support rod 11 on its top. The mounting base 10 is located on one side of the mounting frame 3. The mounting base 10 has two first slide rails 101 arranged front to back on the side near the mounting frame 3. The mounting frame 3 has two sets of first sliders 36 that slide in cooperation with the two first slide rails 101 on the side near the mounting base 10. The top of the mounting base 10 has a first hand-cranked screw 102. The mounting frame 3 is connected to a first screw engagement block 37 and a second screw engagement block 38 arranged left to right. The first screw engagement block 37 has a first screw thread hole 371 that is threaded into the first hand-cranked screw 102. The second screw engagement block 38 has a second screw thread hole 381 through which a second hand-cranked screw 39 passes. The top of the support rod 11 extends into the mounting frame 3, and the bottom of the second hand-cranked screw 39 abuts against the top of the support rod 11. The first hand crank screw 102 is used to adjust the height of the mounting frame 3, thereby adjusting the height of the iron core fixture 5 to accommodate stator coils 20 of different specifications. When the height of the mounting frame 3 is adjusted, the second hand crank screw 39 is also adjusted to ensure that the bottom of the second hand crank screw 39 abuts against the top of the support rod 11. The support rod 11 can support the mounting frame 3.

[0040] Reference Figure 1 , Figure 2 , Figure 8 and Figure 9The frame 1 has a movable opening 12, two second slide rails 13, and a linear slide module 14 that drives the support platform 4 to move back and forth. The two second slide rails 13 are located on the left and right sides of the movable opening 12, respectively. The linear slide module 14 is located on one side of one of the second slide rails 13. The slide of the linear slide module 14 is connected to one side of the support platform 4. The bottom of the support platform 4 has two sets of second sliders 41 that slide in cooperation with the two second slide rails 13. The bottom of the support platform 4 has a cylinder 15, which is located inside the movable opening 12. The piston rod of the cylinder 15 is connected to the first lifting plate 6. The top surface of the first lifting plate 6 has a first connecting seat 16, and the reference plate 7 is connected to the top of the first connecting seat 16. An electric cylinder 17 is located at the bottom of the first lifting plate 6, within the movable opening 12. A second lifting plate 18 is located above the first lifting plate 6, with the piston rod of the electric cylinder 17 connected to the second lifting plate 18. A second connecting seat 19 is located at the top of the second lifting plate 18, and the cutter 8 is connected to the top of the second connecting seat 19. The linear slide module 14 is used to drive the support platform 4, the first lifting plate 6, the cylinder 15, the electric cylinder 17, the second lifting plate 18, the reference plate 7, and the cutter 8 to move back and forth. The cylinder 15 is used to drive the reference plate 7 and the cutter 8 to rise and fall simultaneously, while the electric cylinder 17 is used to drive the cutter 8 to rise and fall individually.

[0041] Reference Figure 1 , Figure 2 , Figures 6 to 11 The working principle of this invention is as follows: The stator coil 20 is installed on the iron core fixture 5. Each column of copper wire windings of the stator coil 20 includes three sets of copper wire windings 201 to be cut flat arranged vertically, or includes one uncut copper wire winding 202 and two to three sets of copper wire windings 201 to be cut flat arranged vertically. Each set of copper wire windings 201 to be cut flat consists of two copper wire windings 2011 that are closely adjacent to each other. The reference plate 7 rises and then moves forward, allowing each set of copper wire windings 201 to be cut flat to pass through a limiting hole 72 in a top-to-bottom order. If there is a single uncut copper wire winding 202, it passes through a limiting half hole 71. Then the cutter 8 rises and cuts from the bottom... The ends of each set of copper wire windings 201 to be cut flat are cut sequentially. If a set of copper wire windings 202 that is not cut flat is encountered, the rising distance of the cutter 8 can be controlled so that the set of copper wire windings 202 that is not cut flat is not cut because it is located at the top. After a set of copper wire windings 201 to be cut flat is completed, the cutter 8 and the reference plate 7 are reset sequentially. Then the iron core fixture 5 is rotated at a certain angle to cut the next set of copper wire windings 201 to be cut flat. The reference plate 7 and the cutter 8 repeat the above actions to complete the cutting of the next set of copper wire windings 201 to be cut flat, until all the copper wire windings 201 to be cut flat are cut flat.

[0042] The above are merely specific embodiments of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial modifications made to the present invention using this concept shall be considered as infringing upon the protection scope of the present invention.

Claims

1. A device for flattening the stator coil of a new energy drive motor, characterized in that: The device includes a frame, with a support bracket, a mounting frame, and a support platform on the top of the frame. The support bracket supports the stator coil and is located on the front side of the mounting frame. A rotatable iron core fixture is provided on the front side of the mounting frame, and the iron core of the stator coil is fitted around the outer periphery of the iron core fixture. The support platform is movably positioned on the top of the frame. Above the support platform is a liftable first lifting plate. The top of the first lifting plate is provided with a liftable reference plate and a liftable cutter. The reference plate has a limiting half-hole and multiple limiting holes arranged sequentially from top to bottom. The height of the limiting half-hole is half the height of the limiting hole. The front end face of the cutter is attached to the rear end face of the reference plate.

2. The new energy driving motor stator coil cutting device according to claim 1, characterized in that: The support frame includes a mounting frame, a first connecting rod, two first connecting blocks, and two symmetrical support seats. The two first connecting blocks are located on the left and right sides of the mounting frame, respectively. The first connecting rod passes through the top of the mounting frame, and the two ends of the first connecting rod extend out of the left and right sides of the mounting frame, respectively. The two ends of the first connecting rod are connected to the two first connecting blocks, respectively. The two support seats are connected to the top of the two first connecting blocks, respectively.

3. The new energy driving motor stator coil cutting device according to claim 2, characterized in that: The support includes a second connecting rod, two rotating rollers arranged vertically and horizontally offset, and two second connecting blocks symmetrically arranged front and rear. The second connecting rod is connected between the two second connecting blocks, and the two rotating rollers are rotatably connected between the two second connecting blocks.

4. The new energy driving motor stator coil cutting device according to claim 2, characterized in that: The mounting bracket is U-shaped. Each of the two vertical sections of the mounting bracket has a first rod hole and a first slot at its top. The first slot communicates with the first rod hole. The first connecting rod passes through the first rod hole in each of the two vertical sections of the mounting bracket. Each of the two vertical sections has a first bolt hole and a first threaded hole at its top. The first bolt hole and the first threaded hole are located above and below the first slot, respectively. A first bolt, threadedly connected to the first threaded hole, passes through the first bolt hole. Each of the two first connecting blocks has a second rod hole and a second slot at its bottom. The second slot communicates with the second rod hole. The first connecting rod passes through the second rod hole in each of the two first connecting blocks. Each of the two first connecting blocks also has a second bolt hole and a second threaded hole at its bottom. The second threaded hole and the second bolt hole are located above and below the second slot, respectively. A second bolt, threadedly connected to the second threaded hole, passes through the second bolt hole.

5. The new energy driving motor stator coil cutting device according to claim 3, characterized in that: The top of the first connecting block is U-shaped. The two vertical parts of the top of the first connecting block are provided with a third rod hole, a third groove and a through hole. The third groove communicates with the third rod hole and the through hole. The through hole is located at the bottom of the third groove. The second connecting rod passes through the third rod hole of the two vertical parts of the top of the first connecting block. The two vertical parts of the top of the first connecting block are provided with a third bolt hole and a third threaded hole. The third bolt hole and the third threaded hole are located on the left and right sides of the third groove, respectively. A third bolt is threaded through the third bolt hole and connected to the third threaded hole.

6. The new energy driving motor stator coil cutting device according to claim 1, characterized in that: The rear end of the mounting frame is equipped with a servo motor and a reducer connected to the servo motor. The output shaft of the reducer is connected to a rotating shaft. The front end of the rotating shaft is connected to the iron core fixture. The rear outer periphery of the iron core fixture is provided with a retaining edge. The outer periphery of the iron core fixture is provided with multiple clamping pieces that are clamped to the inner groove of the iron core. The iron core fixture is provided with two symmetrical and retractable tensioning blocks. One end of the two tensioning blocks can extend out of the iron core fixture and press against the inner periphery of the iron core.

7. The new energy driving motor stator coil cutting device according to claim 6, characterized in that: The iron core fixture has two movable channels arranged left and right. Each tensioning block corresponds to one movable channel and is located in the corresponding movable channel. The tensioning block has a slit. An abutment block located in the slit is fixed in the movable channel. A spring is installed in the slit. The two ends of the spring abut against the abutment block and the side wall of the slit, respectively. The front end of the iron core fixture has a sleeve hole. A tapered sleeve is installed in the sleeve hole. The front end of the iron core fixture has a fourth threaded hole. The tapered sleeve has a fourth bolt hole. A fourth bolt is threaded through the fourth bolt hole and threaded into the fourth threaded hole. The outer circumference of the tapered sleeve abuts against the other end of the two tensioning blocks. The other end face of the tensioning block is an inclined arc surface adapted to the outer circumference of the tapered sleeve.

8. The new energy driving motor stator coil cutting device according to claim 1, characterized in that: The iron core fixture has a positioning plate at its rear end. The positioning plate has several copper wire positioning holes through which the ends of the copper wire windings pass. The front end of the mounting frame is connected to a plurality of circumferentially distributed connectors. Each connector is connected to a rolling bearing near the end of the iron core fixture. The rolling bearings abut against the rear end of the positioning plate. The reference plate is located on the rear side of the positioning plate.

9. The new energy driving motor stator coil cutting device according to claim 1, characterized in that: The top of the frame is provided with a mounting base and a support rod. The mounting base is located on one side of the mounting frame. The side of the mounting base near the mounting frame is provided with a first slide rail. The side of the mounting frame near the mounting base is provided with a first slider that slides with the first slide rail. The top of the mounting base is provided with a first hand-cranked screw. A first screw mating block and a second screw mating block are connected inside the mounting frame. The first screw mating block is provided with a first screw thread hole that is threaded with the first hand-cranked screw. The second screw mating block is provided with a second screw thread hole through which the second hand-cranked screw passes. The top of the support rod extends into the mounting frame, and the bottom of the second hand-cranked screw abuts against the top of the support rod.

10. The new energy driving motor stator coil cutting device according to claim 1, characterized in that: The top of the frame is provided with a movable opening, two second slide rails, and a linear slide module that drives the support platform to move back and forth. The two second slide rails are located on the left and right sides of the movable opening, respectively. The linear slide module is located on one side of one of the second slide rails. The slide of the linear slide module is connected to one side of the support platform. The bottom of the support platform is provided with two sets of second sliders that slide in cooperation with the two second slide rails. The bottom of the support platform is provided with a cylinder, which is located inside the movable opening. The piston rod of the cylinder is connected to a first lifting plate. The top surface of the first lifting plate is provided with a first connecting seat. The reference plate is connected to the top of the first connecting seat. The bottom of the first lifting plate is provided with an electric cylinder, which is located inside the movable opening. A second lifting plate is provided above the first lifting plate. The piston rod of the electric cylinder is connected to the second lifting plate. The top of the second lifting plate is provided with a second connecting seat. The cutter is connected to the top of the second connecting seat.

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