A noise-reducing permanent magnet synchronous motor for washing machines and its manufacturing equipment

Abstract

This invention belongs to the technical field of motor processing equipment, specifically a noise-reducing permanent magnet synchronous motor for washing machines and its manufacturing equipment. Addressing the problems of significant noise during the operation of the agitator blades in existing technologies, the need for multiple tooling fixtures and cumbersome operation during stator fabrication, and the inability to simultaneously complete assembly and welding on the same equipment, the present invention proposes the following solution: It includes a washing machine housing and a motor, wherein the motor is composed of a stator, rotor, and end caps. A partition is fixedly connected inside the washing machine housing, and an agitator plate is rotatably connected to the top of the partition. In this invention, during assembly, simply passing silicon steel sheets through through holes and fitting them onto the outer wall of the guide post forms the base. Similarly, after aligning the side plates with the through slots and positioning slots respectively, the stator assembly can be easily completed by simply moving the pressure plate downwards. After assembly, the stator can be rotated to the other side for immediate welding of the stator components, making the operation simple.

Description

Technical Field

[0001] This invention relates to the field of motor processing equipment technology, and in particular to a noise-reducing permanent magnet synchronous motor for washing machines and its manufacturing equipment. Background Technology

[0002] Permanent magnet synchronous motors use permanent magnets for excitation, which simplifies the motor structure, reduces processing and assembly costs, and eliminates the need for slip rings and brushes that are prone to problems, thus improving the reliability of motor operation. Furthermore, since no excitation current is required, there is no excitation loss, which improves the efficiency and power density of the motor.

[0003] Permanent magnet synchronous motors are widely used in household appliances, such as driving the agitator blades of washing machines, due to their simple structure, reliable operation, small size, light weight, high power density, and easy field weakening and speed expansion. However, the motor generates considerable noise when driving the agitator blades. As people's requirements for washing machine noise have gradually increased, the noise generated by the motor has gradually become unacceptable.

[0004] A permanent magnet synchronous motor consists of components such as a stator, rotor, and end covers. The stator is basically the same as that of a conventional induction motor, but it uses a laminated structure to reduce iron losses during operation. The rotor can be made solid or made of laminated laminations. The armature winding can be a concentrated full-pitch winding, a distributed short-pitch winding, or an unconventional winding.

[0005] The production of motor stators requires the assembly and welding of various components. However, existing technologies require the use of multiple tooling fixtures to complete the assembly of motor stators. For example, the utility model disclosed in CN215509596U uses a large number of tooling fixtures, which makes the subsequent assembly and disassembly of the motor stator cumbersome and affects the production of the motor stator. Furthermore, after the stator is produced, it needs to be transported to the next process for manual welding. It is impossible to complete the assembly and welding work on the same equipment at the same time, resulting in low production efficiency of motor stators. Summary of the Invention

[0006] This invention provides a noise-reducing permanent magnet synchronous motor for washing machines and its manufacturing equipment, which solves the shortcomings of the prior art, such as large noise when driving the agitator blades, the need for multiple toolings and cumbersome operation when manufacturing the motor stator, and the inability to complete assembly and welding work on the same equipment at the same time.

[0007] This invention provides the following technical solution:

[0008] A noise-reducing permanent magnet synchronous motor for a washing machine includes: a washing machine housing and a motor, wherein the motor is composed of components such as a stator, a rotor, and end caps. A partition is fixedly connected inside the washing machine housing, an agitator plate is rotatably connected to the top of the partition, an inner shell is fixedly connected to the bottom of the partition, and the motor is fixedly connected to the bottom inner wall of the inner shell. The output shaft of the motor rotatably passes through the partition and is fixedly connected to the bottom of the agitator plate. A noise-reducing structure is disposed inside the inner shell to reduce the noise generated by the motor during operation. A vibration-damping structure is disposed on the bottom inner wall of the washing machine housing to reduce the lateral vibration generated by the motor during operation.

[0009] In one possible design, the noise-absorbing structure includes a cavity within an inner shell. The bottom of the partition has an inner shell, with one end of the inner shell extending into the cavity. A first liquid outlet pipe is connected to one side of the inner shell. Water above the partition fills the cavity through an inlet pipe. When the solenoid valve on the inlet pipe is closed and the motor is started to drive the stirring plate to rotate and stir the clothes, the noise generated by the motor enters the cavity through the inner shell. Since the cavity is filled with water, the water in the cavity can absorb sound waves, thereby reducing noise.

[0010] In one possible design, the shock-absorbing structure includes an outer shell fixedly connected to the inner wall of the bottom of the washing machine casing, with the top of the outer shell fixedly connected to the bottom of a partition. Multiple sliding rods are fixedly connected to the inner wall of the outer shell. Multiple sliding grooves are provided on the inner wall of the cavity away from the motor. One end of each sliding rod extends into a sliding groove and is fixedly connected to a piston, which is in a sealed sliding connection with the sliding groove. Multiple shock-absorbing springs are fixedly connected to the inner wall of the bottom of the outer shell, with the top of each spring fixedly connected to the bottom of the inner shell. Multiple sound-absorbing cotton, which is semi-circular strip-shaped, is fixedly connected to the inner wall of the outer shell. The sound-absorbing cotton increases the area for receiving noise, effectively absorbing it. When the motor vibrates laterally during operation, the piston extends into the cavity under the action of the sliding rods, squeezing the water inside the cavity. This squeezing of the water further reduces the vibration of the motor, thus reducing noise. When the motor vibrates longitudinally during operation, the shock-absorbing springs buffer the vibration, reducing noise.

[0011] In one possible design, a drain tank located below a partition is fixedly connected to the bottom inner wall of the washing machine casing. A second drain pipe is fixedly connected to the bottom of the partition, and the bottom end of the second drain pipe extends into the drain tank. The end of the first drain pipe away from the outer casing is connected to the drain tank. Solenoid valves are fixedly fitted on the outer walls of the second drain pipe, the inlet pipe, and the first drain pipe.

[0012] A fabrication apparatus for a permanent magnet synchronous motor, used to process the stator inside the motor as described above, includes a worktable and a lower base plate, a machine base, a through slot, an upper base plate, and four side plates located above the worktable. A rotating column is rotatably connected to the top of the worktable, and a placement plate is fixedly sleeved on the outer wall of the rotating column. A top plate is fixedly connected to the top of the rotating column. Two assembly structures are respectively set on the top two sides of the placement plate for assembling the stator. A welding structure is set on one side of the worktable for automatically welding the assembled stator.

[0013] In one possible design, the assembly structure includes a fixed plate fixedly connected to one side of the top of the placement plate. A bearing plate is rotatably connected to the top of the fixed plate. A drive motor is housed within the fixed plate, and the output shaft of the drive motor is fixedly connected to the bottom of the bearing plate. A sliding column is fixedly connected to the top of the fixed plate, and the top of the sliding column is fixedly connected to the bottom of the top plate. A pressure plate is slidably fitted onto the outer wall of the sliding column. The pressure plate has a through hole. An electric push rod is fixedly connected to the top of the fixed plate, and the output shaft of the electric push rod is fixedly connected to the bottom of the pressure plate. A rotating disk is rotatably connected to the bottom of the pressure plate. Grooves are provided on the side of the rotating disk and the lower base plate that are close to each other, and two grooves respectively mate with the lower base plate and the upper base plate. A guide post penetrating the machine base is fixedly connected to the bottom inner wall of the groove located within the bearing plate. The outer wall of the machine base has four through slots that mate with side plates. Multiple positioning slots mate with the side plates are provided on the side of the lower base plate and the upper base plate that are close to each other. Between the lower and upper base plates, the output shaft of the electric push rod pushes the pressure plate upward, placing the lower base plate into the groove. The electric push rod then moves the pressure plate downward until the guide post penetrates the pressure plate. Next, multiple silicon steel sheets are sequentially fitted onto the guide post through through-holes. Because the inner wall of the through-hole fits against the outer wall of the silicon steel sheet, the silicon steel sheet is kept flat when fitted onto the guide post. Multiple silicon steel sheets are stacked to form a base. Multiple side plates are inserted into positioning slots, which restrict the movement of the silicon steel sheets. Place the upper base plate into the groove inside the rotating disk. The electromagnet will attract the upper base plate into the groove. The electric push rod will drive the rotating disk and the upper base plate to move down through the pressure plate. At this time, the top of the side plate will extend into the positioning groove inside the upper base plate. The upper base plate and the lower base plate can press and fix the machine base and the side plate. The assembly is complete. The operation is simple and does not require too many tools. When disassembling, simply push the pressure plate up with the electric push rod. The pressure plate will attract the stator upward through the electromagnet, which will complete the installation between the stator and the carrier plate. The operation is convenient.

[0014] In one possible design, the welding structure includes a vertical plate disposed on one side of the workbench. A rotating shaft and a rotating rod are rotatably connected to the side of the vertical plate closest to the workbench, with the rotating rod located below the rotating shaft. A welding torch is fixedly connected to one end of the rotating shaft. A meshing second gear and a first gear are respectively fixedly fitted onto the outer walls of the rotating shaft and the rotating rod. A bevel gear is fixedly connected to the end of the rotating rod away from the vertical plate. A bevel rack is fixedly connected to the outer wall of the bearing plate, with the bevel gear meshing with the bevel rack. When the placement plate drives the fixed plate and the bearing plate to rotate, the bevel rack on one side of the bearing plate drives the first gear to rotate via the bevel gear. The first gear drives the rotating shaft and the welding torch to rotate at a certain angle via the second gear, activating the drive motor inside the fixed plate to drive the bearing plate to rotate. As the bearing plate drives the lower base plate, the machine base, and the upper base plate to rotate, the welding torch can weld the lower base plate and the side plate. After the bearing plate rotates one revolution, the bevel rack drives the bevel gear to rotate again, thereby driving the welding torch to rotate 180°, enabling the welding torch to weld the upper base plate and the side plate, completing the welding to form the stator.

[0015] In one possible design, a rectangular magnet is fixedly connected to the side of the vertical plate near the workbench, and two iron load-bearing blocks are fixedly connected to the side of the second gear near the workbench. The iron load-bearing blocks cooperate with the rectangular magnet. The first gear drives the rotating shaft and welding gun to rotate a certain angle through the second gear. When the bevel gear disengages from the bevel rack, the second gear continues to rotate under the gravity of the iron load-bearing blocks until the rectangular magnet generates a magnetic attraction force on the iron load-bearing block at the top, which just enables the welding gun to rotate 180°. This ensures that the rotating shaft can still rotate 180° after the bevel rack and bevel gear disengage from engagement to disengagement, so that the welding gun can weld the bearing plate and the side plate and the upper bottom plate and the side plate respectively.

[0016] In one possible design, multiple electromagnets are fixedly connected to the top inner wall of the groove inside the welding torch. A conveyor belt is provided on one side of the workbench, and the conveyor belt is slightly higher than the support plate. During assembly, the electromagnets attract the upper base plate, allowing the operator to easily rotate the rotating disk and the upper base plate to align the positioning groove in the upper base plate with the side plate and operate with the operator. In addition, when welding is completed, the rotating disk drives the stator to move upward through the magnetic attraction of the electromagnets to the upper base plate. The stator detaches from the guide column, and then the rotating column drives the placement plate to rotate 90°. At this time, the support plate and the support plate are located below the conveyor belt, while the stator is located above the conveyor belt. The stator is placed on the conveyor belt by an electric push rod and transported to the next process.

[0017] In one possible design, the pressure plate has two sliding grooves connected to a through hole. A pressure rod is slidably connected to each of the two sliding grooves. A first positive magnet and a first negative magnet are fixedly connected to the sides of the two pressure rods that are close to each other. A rotating head is rotatably connected to one side of the pressure plate. A second negative magnet and a second positive magnet are fixedly connected to the sides of the rotating head that are far apart from each other. Rotating the rotating head causes the second negative magnet and the second positive magnet to rotate. When the first positive magnet and the second negative magnet move closer together, the two pressure rods... The plate can move towards the center. At this time, the two pressure rods are blocked in the through hole. When the pressure plate moves down, it can squeeze the stacked silicon steel sheets through the pressure rods to ensure that the silicon steel sheets are neat. Conversely, when the first positive magnet and the second positive magnet are aligned, the two pressure rods move to one side and release the pressure rods from blocking the through hole. At this time, the silicon steel sheets can easily pass through the through hole and fit on the outer wall of the guide post to continue to complete the stacking of silicon steel sheets. Since the outer wall of the silicon steel sheet is in contact with the inner wall of the through hole, the silicon steel sheet passing through the through hole can be stably fitted on the outer wall of the guide post, avoiding the silicon steel sheets from tilting during stacking.

[0018] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the invention.

[0019] In this invention, the inner wall of the outer shell is fixedly connected with multiple sliding rods, and the inner wall of the cavity away from the motor is provided with multiple sliding grooves. One end of each sliding rod extends into the sliding groove and is fixedly connected to a piston. The piston and the sliding groove are in a sealed sliding connection. When the motor vibrates laterally during operation, the piston can extend into the cavity under the action of the sliding rods to squeeze the water in the cavity. The squeezing of the water by the piston can further reduce the vibration of the motor, thereby reducing noise. In addition, the noise generated by the motor enters the cavity through the inner shell. Since the cavity is filled with water, the water in the cavity can absorb sound waves, thereby reducing noise.

[0020] In this invention, the rotating disk and the bearing disk are both provided with grooves on their respective sides, and multiple positioning slots are provided on their respective sides. The pressure plate has through holes, and a guide post is fixedly connected to the bottom inner wall of the bearing disk. The outer wall of the silicon steel sheet fits against the inner wall of the through hole. The silicon steel sheet is sleeved on the outer wall of the guide post through the through hole, which can ensure the flatness of the silicon steel sheet during the sleeve process. In addition, the alignment of the side plate with the positioning slots on the bearing disk and the rotating disk can fix and limit the machine base. Thus, the stator can be assembled simply by pressing down the pressure plate. There are fewer working parts, the operation is simple, and later, the stator can be easily separated from the bearing disk and guide post by simply moving the pressure plate up and using the electromagnet to attract the upper base plate.

[0021] In this invention, the outer walls of the rotating shaft and the rotating rod are respectively fixedly fitted with a meshing second gear and a first gear. One end of the rotating rod is fixedly connected to a bevel gear, and the outer wall of the bearing plate is fixedly connected to a bevel rack. When the bearing plate rotates, the bevel rack drives the first gear to rotate through the bevel gear. The first gear drives the rotating shaft and the welding torch to rotate at a certain angle through the second gear, thereby adjusting the welding direction of the welding torch. This enables the welding torch to weld the upper base plate and the side plate together, completing the welding to form the stator.

[0022] In this invention, a rectangular magnet is fixedly connected to the side of the vertical plate near the workbench, and two iron load-bearing blocks are fixedly connected to the side of the second gear near the workbench. The first gear drives the rotating shaft and welding gun to rotate at a certain angle through the second gear. When the bevel gear disengages from the bevel rack, the second gear continues to rotate under the gravity of the iron load-bearing blocks until the rectangular magnet generates a magnetic attraction force on the iron load-bearing block at the top, which just enables the welding gun to rotate 180°. This ensures that the rotating shaft can still rotate 180° after the bevel rack and bevel gear disengage from engagement, so that the welding gun can weld the bearing plate and the side plate and the upper bottom plate and the side plate respectively.

[0023] In this invention, during assembly, the silicon steel sheet is simply passed through the through hole and fitted onto the outer wall of the guide post to form the base. Similarly, after aligning the side plates with the through slot and the positioning slot respectively, the stator can be easily assembled by simply moving the pressure plate down. After assembly, the stator can be rotated to the other side to immediately weld the stator components. The operation is simple and the assembly and welding efficiency is high. When disassembling, the welded stator can be removed from the guide post by using an electromagnet, making disassembly equally convenient. Attached Figure Description

[0024] Figure 1 This is a partial front view sectional view of a noise-reducing permanent magnet synchronous motor for a washing machine provided in an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the method structure at point A of a noise-reducing permanent magnet synchronous motor for a washing machine provided in an embodiment of the present invention;

[0026] Figure 3 This is a top view of the housing of a noise-reducing permanent magnet synchronous motor for a washing machine, provided in an embodiment of the present invention.

[0027] Figure 4 A three-dimensional cross-sectional view of a fabrication apparatus for a permanent magnet synchronous motor provided in an embodiment of the present invention;

[0028] Figure 5 This is a three-dimensional exploded view of the assembly structure of a fabrication equipment for a permanent magnet synchronous motor provided in an embodiment of the present invention.

[0029] Figure 6 This is a three-dimensional cross-sectional view of the assembly structure of a fabrication equipment for a permanent magnet synchronous motor provided in an embodiment of the present invention.

[0030] Figure 7 This is a three-dimensional structural diagram of the support plate and the bottom plate of a fabrication apparatus for a permanent magnet synchronous motor provided in an embodiment of the present invention.

[0031] Figure 8 This is a three-dimensional structural diagram of the upper base plate and rotating disk of a fabrication apparatus for a permanent magnet synchronous motor provided in an embodiment of the present invention.

[0032] Figure 9 A three-dimensional structural schematic diagram of the welding structure of a fabrication equipment for a permanent magnet synchronous motor provided in an embodiment of the present invention;

[0033] Figure 10 This is a three-dimensional structural schematic diagram of the pressure plate of the fabrication equipment for a permanent magnet synchronous motor provided in Embodiment 2 of the present invention;

[0034] Figure 11 This is a three-dimensional cross-sectional view of the pressure plate of the fabrication equipment for a permanent magnet synchronous motor provided in Embodiment 2 of the present invention;

[0035] Figure 12 This is a three-dimensional structural diagram of the rotating head and pressure rod of a fabrication device for a permanent magnet synchronous motor provided in Embodiment 2 of the present invention.

[0036] Figure label:

[0037] 1. Washing machine shell; 2. Motor; 3. Outer shell; 4. Partition; 5. Agitator plate; 6. Shock-absorbing spring; 7. Inner shell; 8. Inlet pipe; 9. First outlet pipe; 10. Second outlet pipe; 11. Drain tank; 12. Cavity; 13. Sliding groove; 14. Sliding rod; 15. Piston; 16. Sound-absorbing cotton; 17. Workbench; 18. Rotating column; 19. Placement plate; 20. Top plate; 21. Fixing plate; 22. Support plate; 23. Lower base plate; 24. Guide column; 25. Machine base; 26. Side plate; 27. Through groove; 28. Upper base plate; 29. Rotating disk; 30. Pressure plate; 31. Through hole; 32. Sliding column; 33. Electric push rod; 34. Groove; 35. Positioning groove; 36. Electromagnet; 37. Vertical plate; 38. Rotating shaft; 39. Welding torch; 40. Rotating rod; 41. Bevel gear; 42. Bevel rack; 43. First gear; 44. Second gear; 45. Rectangular magnet; 46. Iron load-bearing block; 47. Slide groove; 48. Pressure rod; 49. Rotating head; 50. First positive magnet; 51. First negative magnet; 52. Second negative magnet; 53. Second positive magnet. Implementation

[0038] The embodiments of the present invention will now be described with reference to the accompanying drawings.

[0039] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the devices are connected to each other and their relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of the present invention, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present invention, and are not intended to 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 the embodiments of the present invention.

[0040] In this embodiment of the invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0041] In this embodiment of the invention, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0042] References to "one embodiment" or "some embodiments" as used in this specification mean that a particular feature, structure, or characteristic described in connection with that embodiment is included in one or more embodiments of the invention. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless otherwise specifically emphasized. Example

[0043] Reference Figure 1 and Figure 2This embodiment of a noise-reducing permanent magnet synchronous motor for a washing machine includes: a washing machine housing 1 and a motor 2. The motor 2 is composed of components such as a stator, a rotor, and an end cover. A partition 4 is fixedly connected to the washing machine housing 1 by bolts. An agitator 5 is rotatably connected to the top of the partition 4. An inner shell 7 is fixedly connected to the bottom of the partition 4 by bolts. The motor 2 is fixedly connected to the bottom inner wall of the inner shell 7 by bolts. The output shaft of the motor 2 rotatably passes through the partition 4 and is fixedly connected to the bottom of the agitator 5. A noise-reducing structure is provided inside the inner shell 7 to reduce the noise generated by the motor 2 during operation. A vibration-damping structure is provided on the bottom inner wall of the washing machine housing 1 to reduce the lateral vibration generated by the motor 2 during operation.

[0044] Reference Figure 2 The noise reduction structure includes a cavity 12 inside the inner shell 7. The bottom of the partition 4 is provided with the inner shell 7, and one end of the inner shell 7 extends into the cavity 12. A first liquid outlet pipe 9 is provided on one side of the inner shell 7. Water above the partition 4 fills the cavity 12 through the liquid inlet pipe 8. When the solenoid valve on the liquid inlet pipe 8 is closed and the motor 2 is started to drive the stirring plate 5 to rotate and stir the clothes, the noise generated by the motor 2 enters the cavity 12 through the inner shell 7. Since the cavity 12 is filled with water, the water in the cavity 12 can absorb sound waves, thereby reducing noise.

[0045] Reference Figure 2 and Figure 3 The shock-absorbing structure includes an outer shell 3 bolted to the inner wall of the bottom of the washing machine housing 1, with the top of the outer shell 3 bolted to the bottom of the partition 4. Multiple sliding rods 14 are bolted to the inner wall of the outer shell 3. Multiple sliding grooves 13 are provided on the inner wall of the cavity 12 away from the motor 2. One end of each sliding rod 14 extends into a sliding groove 13 and is bolted to a piston 15, which is in a sealed sliding connection with the sliding groove 13. Multiple shock-absorbing springs 6 are fixed to the inner wall of the bottom of the outer shell 3, with the top of each shock-absorbing spring 6 connected to the bottom of the inner shell 7. The outer casing 3 is fixedly connected to a plurality of sound-absorbing cotton 16, which are semi-circular strips. The sound-absorbing cotton 16 can increase the area for receiving noise and effectively absorb noise. When the motor 2 vibrates laterally during operation, the piston 15 can extend into the cavity 12 under the action of the sliding rod 14 to squeeze the water in the cavity 12. The squeezing of the water by the piston 15 can further reduce the vibration of the motor 2, thereby reducing noise. When the motor 2 vibrates longitudinally during operation, the vibration of the motor 2 can be buffered by the shock-absorbing spring 6 to reduce noise.

[0046] Reference Figure 1The bottom inner wall of the washing machine casing 1 is fixedly connected to a drain tank 11 located below the partition 4 by bolts. The bottom of the partition 4 is fixedly connected to a second drain pipe 10, and the bottom end of the second drain pipe 10 extends into the drain tank 11. The end of the first drain pipe 9 away from the outer casing 3 is connected to the drain tank 11. The outer walls of the second drain pipe 10, the inlet pipe 8 and the first drain pipe 9 are all fixedly fitted with solenoid valves.

[0047] Reference Figure 4 This embodiment describes a fabrication apparatus for a permanent magnet synchronous motor, used to process the stator within the motor 2 described above. The apparatus includes a worktable 17 and a lower base plate 23, a machine base 25, a through slot 27, an upper base plate 28, and four side plates 26 located above the worktable 17. A rotating column 18 is rotatably connected to the top of the worktable 17. A placement plate 19 is fixedly fitted onto the outer wall of the rotating column 18. A top plate 20 is bolted to the top of the rotating column 18. Two assembly structures are respectively arranged on the top sides of the placement plate 19 for assembling the stator. A welding structure is arranged on one side of the worktable 17 for automatically welding the assembled stator.

[0048] Reference Figure 5 , Figure 6 , Figure 7 and Figure 8The assembly structure includes a fixing plate 21 bolted to one side of the top of the placement plate 19. A bearing plate 22 is rotatably connected to the top of the fixing plate 21. A drive motor 2 is installed inside the fixing plate 21, and the output shaft of the drive motor 2 is fixedly connected to the bottom of the bearing plate 22. A sliding column 32 is bolted to the top of the fixing plate 21, and the top of the sliding column 32 is bolted to the bottom of the top plate 20. A pressure plate 30 is slidably fitted on the outer wall of the sliding column 32, and a through hole 31 is provided inside the pressure plate 30. An electric push rod 33 is bolted to the top of the fixing plate 21, and the output shaft of the electric push rod 33 is connected to the top of the placement plate 19. The bottom of the pressure plate 30 is fixedly connected to the pressure plate 30 by bolts. A rotating disk 29 is rotatably connected to the bottom of the pressure plate 30. The rotating disk 29 and the lower base plate 23 are respectively provided with grooves 34 on their respective sides. The bottom inner wall of the groove 34 located in the bearing plate 22 is fixedly connected with a guide post 24 that penetrates the machine base 25. The outer wall of the machine base 25 is provided with four through slots 27, and the through slots 27 are respectively provided with side plates 26. The lower base plate 23 and the upper base plate 28 are respectively provided with multiple positioning slots 35 that are respectively provided with side plates 26 on their respective sides. The machine base 25 is located between the lower base plate 23 and the upper base plate 28. Between the base plates 28, the output shaft of the electric push rod 33 pushes the pressure plate 30 upward, placing the lower base plate 23 into the groove 34. The electric push rod 33 then drives the pressure plate 30 downward until the guide post 24 penetrates the pressure plate 30. Next, multiple silicon steel sheets are sequentially fitted onto the guide post 24 through the through holes 31. Because the inner wall of the through hole 31 fits against the outer wall of the silicon steel sheet, the silicon steel sheet is kept flat when fitted onto the guide post 24 through the through hole 31. Multiple silicon steel sheets are stacked to form a base 25. Multiple side plates 26 are inserted into the positioning grooves 35, which limit the movement of the silicon steel sheets. The upper base plate 28 is then... 8. Place the upper base plate 28 into the groove 34 within the rotating disk 29. The electromagnet 36 attracts the upper base plate 28 into the groove 34. The electric push rod 33 drives the rotating disk 29 and the upper base plate 28 to move downward through the pressure plate 30. At this time, the top of the side plate 26 extends into the positioning groove 35 within the upper base plate 28. The upper base plate 28 and the lower base plate 23 can press and fix the base 25 and the side plate 26. The assembly is completed. The operation is simple and does not require many tools. When disassembling, simply push the pressure plate 30 upward with the electric push rod 33. The pressure plate 30 attracts the stator upward through the electromagnet 36, thus completing the installation between the stator and the carrier disk 22. The operation is convenient.

[0049] Reference Figure 9The welding structure includes a vertical plate 37 disposed on one side of the workbench 17. A rotating shaft 38 and a rotating rod 40 are rotatably connected to the side of the vertical plate 37 closest to the workbench 17, with the rotating rod 40 located below the rotating shaft 38. A welding torch 39 is fixedly connected to one end of the rotating shaft 38. A meshing second gear 44 and a first gear 43 are respectively fixedly fitted onto the outer walls of the rotating shaft 38 and the rotating rod 40. A bevel gear 41 is fixedly connected to the end of the rotating rod 40 away from the vertical plate 37. A bevel rack 42 is fixedly connected to the outer wall of the bearing plate 22, with the bevel gear 41 meshing with the bevel rack 42. When the placement plate 19 drives the fixed plate 21 and the bearing plate 22 to rotate, the bearing plate 22... One side bevel rack 42 drives the first gear 43 to rotate via bevel gear 41. The first gear 43 drives the rotating shaft 38 and welding torch 39 to rotate at a certain angle via the second gear 44. This starts the drive motor 2 in the fixed plate 21 to drive the carrier plate 22 to rotate. When the carrier plate 22 drives the lower base plate 23, the machine base 25 and the upper base plate 28 to rotate, the welding torch 39 can weld the lower base plate 23 and the side plate 26. After the carrier plate 22 rotates one revolution, the bevel rack 42 drives the bevel gear 41 to rotate again, which in turn drives the welding torch 39 to rotate 180°, enabling the welding torch 39 to weld the upper base plate 28 and the side plate 26, thus completing the welding to form the stator.

[0050] Reference Figure 9 A rectangular magnet 45 is bolted to the side of the vertical plate 37 near the workbench 17. Two iron load-bearing blocks 46 are bolted to the side of the second gear 44 near the workbench 17. The iron load-bearing blocks 46 cooperate with the rectangular magnet 45. The first gear 43 drives the rotating shaft 38 and the welding torch 39 to rotate at a certain angle through the second gear 44. When the bevel gear 41 disengages from the bevel rack 42, the second gear 44 continues to rotate under the gravity of the iron load-bearing blocks 46 until the rectangular magnet 45 generates a magnetic attraction force on the iron load-bearing block 46 at the top, which just enables the welding torch 39 to rotate 180°. This ensures that the rotating shaft 38 can still rotate 180° after the bevel rack 42 and the bevel gear 41 disengage from engagement. This is used to enable the welding torch 39 to weld the bearing plate 22 and the side plate 26 and the upper bottom plate 28 and the side plate 26, respectively.

[0051] Reference Figure 8Multiple electromagnets 36 are bolted to the top inner wall of the groove 34 inside the welding torch 39. A conveyor belt is provided on one side of the workbench 17, and the conveyor belt is slightly higher than the support plate 22. During assembly, the electromagnets 36 attract the upper base plate 28, allowing the operator to easily rotate the rotating plate 29 and the upper base plate 28 to align the positioning groove 35 in the upper base plate 28 with the side plate 26 and operate with the operator. In addition, when welding is completed, the rotating plate 29 drives the stator to move upward through the magnetic attraction of the electromagnets 36 to the upper base plate 28. The stator detaches from the guide column 24. Then the rotating column 18 drives the placement plate 19 to rotate 90°. At this time, the support plate 22 is located below the conveyor belt, while the stator is located above the conveyor belt. The stator is placed on the conveyor belt by the electric push rod 33 and transported to the next process. Example

[0052] Reference Figure 1 and Figure 2 This embodiment of a noise-reducing permanent magnet synchronous motor for a washing machine includes: a washing machine housing 1 and a motor 2. The motor 2 is composed of components such as a stator, a rotor, and an end cover. A partition 4 is fixedly connected to the washing machine housing 1 by bolts. An agitator 5 is rotatably connected to the top of the partition 4. An inner shell 7 is fixedly connected to the bottom of the partition 4 by bolts. The motor 2 is fixedly connected to the bottom inner wall of the inner shell 7 by bolts. The output shaft of the motor 2 rotatably passes through the partition 4 and is fixedly connected to the bottom of the agitator 5. A noise-reducing structure is provided inside the inner shell 7 to reduce the noise generated by the motor 2 during operation. A vibration-damping structure is provided on the bottom inner wall of the washing machine housing 1 to reduce the lateral vibration generated by the motor 2 during operation.

[0053] Reference Figure 2 The noise reduction structure includes a cavity 12 inside the inner shell 7. The bottom of the partition 4 is provided with the inner shell 7, and one end of the inner shell 7 extends into the cavity 12. A first liquid outlet pipe 9 is provided on one side of the inner shell 7. Water above the partition 4 fills the cavity 12 through the liquid inlet pipe 8. When the solenoid valve on the liquid inlet pipe 8 is closed and the motor 2 is started to drive the stirring plate 5 to rotate and stir the clothes, the noise generated by the motor 2 enters the cavity 12 through the inner shell 7. Since the cavity 12 is filled with water, the water in the cavity 12 can absorb sound waves, thereby reducing noise.

[0054] Reference Figure 2 and Figure 3The shock-absorbing structure includes an outer shell 3 bolted to the inner wall of the bottom of the washing machine housing 1, with the top of the outer shell 3 bolted to the bottom of the partition 4. Multiple sliding rods 14 are bolted to the inner wall of the outer shell 3. Multiple sliding grooves 13 are provided on the inner wall of the cavity 12 away from the motor 2. One end of each sliding rod 14 extends into a sliding groove 13 and is bolted to a piston 15, which is in a sealed sliding connection with the sliding groove 13. Multiple shock-absorbing springs 6 are fixed to the inner wall of the bottom of the outer shell 3, with the top of each shock-absorbing spring 6 connected to the bottom of the inner shell 7. The outer casing 3 is fixedly connected to a plurality of sound-absorbing cotton 16, which are semi-circular strips. The sound-absorbing cotton 16 can increase the area for receiving noise and effectively absorb noise. When the motor 2 vibrates laterally during operation, the piston 15 can extend into the cavity 12 under the action of the sliding rod 14 to squeeze the water in the cavity 12. The squeezing of the water by the piston 15 can further reduce the vibration of the motor 2, thereby reducing noise. When the motor 2 vibrates longitudinally during operation, the vibration of the motor 2 can be buffered by the shock-absorbing spring 6 to reduce noise.

[0055] Reference Figure 1 The bottom inner wall of the washing machine casing 1 is fixedly connected to a drain tank 11 located below the partition 4 by bolts. The bottom of the partition 4 is fixedly connected to a second drain pipe 10, and the bottom end of the second drain pipe 10 extends into the drain tank 11. The end of the first drain pipe 9 away from the outer casing 3 is connected to the drain tank 11. The outer walls of the second drain pipe 10, the inlet pipe 8 and the first drain pipe 9 are all fixedly fitted with solenoid valves.

[0056] Reference Figure 1 This embodiment of a permanent magnet synchronous motor manufacturing equipment, for processing the stator in the motor 2 as described above, includes: a worktable 17 and a lower base plate 23, a machine base 25, a through slot 27, an upper base plate 28 and four side plates 26 located above the worktable 17. A rotating column 18 is rotatably connected to the top of the worktable 17. A placement plate 19 is fixedly sleeved on the outer wall of the rotating column 18. A top plate 20 is fixedly connected to the top of the rotating column 18 by bolts. Two sets of assembly structures are respectively set on the top two sides of the placement plate 19 for assembling the stator. A welding structure is set on one side of the worktable 17 for automatically welding the assembled stator.

[0057] Working principle: When using the washing machine casing 1, inject an appropriate amount of water into the washing machine casing 1, open the solenoid valve on the liquid inlet pipe 8, and the water above the partition 4 fills the cavity 12 through the liquid inlet pipe 8. Close the solenoid valve on the liquid inlet pipe 8, and start the motor 2 to drive the agitator plate 5 to rotate and agitate the clothes. The noise generated by the motor 2 enters the cavity 12 through the inner shell 7. Since the cavity 12 is filled with water, the water in the cavity 12 can absorb sound waves, thereby reducing noise. When the motor 2 vibrates longitudinally during operation, the vibration of the motor 2 can be buffered by the shock-absorbing spring 6, reducing noise. In addition, when the motor 2 vibrates laterally, the piston 15 can extend into the cavity 12 under the action of the sliding rod 14 to squeeze the water in the cavity 12. The squeezing of the water by the piston 15 can further reduce the vibration of the motor 2, thereby reducing noise.

[0058] Reference Figure 4 This embodiment describes a fabrication apparatus for a permanent magnet synchronous motor, used to process the stator within the motor 2 described above. The apparatus includes a worktable 17 and a lower base plate 23, a machine base 25, a through slot 27, an upper base plate 28, and four side plates 26 located above the worktable 17. A rotating column 18 is rotatably connected to the top of the worktable 17. A placement plate 19 is fixedly fitted onto the outer wall of the rotating column 18. A top plate 20 is bolted to the top of the rotating column 18. Two assembly structures are respectively arranged on the top sides of the placement plate 19 for assembling the stator. A welding structure is arranged on one side of the worktable 17 for automatically welding the assembled stator.

[0059] Reference Figure 5 , Figure 6 , Figure 7 and Figure 8The assembly structure includes a fixing plate 21 bolted to one side of the top of the placement plate 19. A bearing plate 22 is rotatably connected to the top of the fixing plate 21. A drive motor 2 is installed inside the fixing plate 21, and the output shaft of the drive motor 2 is fixedly connected to the bottom of the bearing plate 22. A sliding column 32 is bolted to the top of the fixing plate 21, and the top of the sliding column 32 is bolted to the bottom of the top plate 20. A pressure plate 30 is slidably fitted on the outer wall of the sliding column 32, and a through hole 31 is provided inside the pressure plate 30. An electric push rod 33 is bolted to the top of the fixing plate 21, and the output shaft of the electric push rod 33 is connected to the top of the placement plate 19. The bottom of the pressure plate 30 is fixedly connected to the pressure plate 30 by bolts. A rotating disk 29 is rotatably connected to the bottom of the pressure plate 30. The rotating disk 29 and the lower base plate 23 are respectively provided with grooves 34 on their respective sides. The bottom inner wall of the groove 34 located in the bearing plate 22 is fixedly connected with a guide post 24 that penetrates the machine base 25. The outer wall of the machine base 25 is provided with four through slots 27, and the through slots 27 are respectively provided with side plates 26. The lower base plate 23 and the upper base plate 28 are respectively provided with multiple positioning slots 35 that are respectively provided with side plates 26 on their respective sides. The machine base 25 is located between the lower base plate 23 and the upper base plate 28. Between the base plates 28, the output shaft of the electric push rod 33 pushes the pressure plate 30 upward, placing the lower base plate 23 into the groove 34. The electric push rod 33 then drives the pressure plate 30 downward until the guide post 24 penetrates the pressure plate 30. Next, multiple silicon steel sheets are sequentially fitted onto the guide post 24 through the through holes 31. Because the inner wall of the through hole 31 fits against the outer wall of the silicon steel sheet, the silicon steel sheet is kept flat when fitted onto the guide post 24 through the through hole 31. Multiple silicon steel sheets are stacked to form a base 25. Multiple side plates 26 are inserted into the positioning grooves 35, which limit the movement of the silicon steel sheets. The upper base plate 28 is then... 8. Place the upper base plate 28 into the groove 34 within the rotating disk 29. The electromagnet 36 attracts the upper base plate 28 into the groove 34. The electric push rod 33 drives the rotating disk 29 and the upper base plate 28 to move downward through the pressure plate 30. At this time, the top of the side plate 26 extends into the positioning groove 35 within the upper base plate 28. The upper base plate 28 and the lower base plate 23 can press and fix the base 25 and the side plate 26. The assembly is completed. The operation is simple and does not require many tools. When disassembling, simply push the pressure plate 30 upward with the electric push rod 33. The pressure plate 30 attracts the stator upward through the electromagnet 36, thus completing the installation between the stator and the carrier disk 22. The operation is convenient.

[0060] Reference Figure 9The welding structure includes a vertical plate 37 disposed on one side of the workbench 17. A rotating shaft 38 and a rotating rod 40 are rotatably connected to the side of the vertical plate 37 closest to the workbench 17, with the rotating rod 40 located below the rotating shaft 38. A welding torch 39 is fixedly connected to one end of the rotating shaft 38. A meshing second gear 44 and a first gear 43 are respectively fixedly fitted onto the outer walls of the rotating shaft 38 and the rotating rod 40. A bevel gear 41 is fixedly connected to the end of the rotating rod 40 away from the vertical plate 37. A bevel rack 42 is fixedly connected to the outer wall of the bearing plate 22, with the bevel gear 41 meshing with the bevel rack 42. When the placement plate 19 drives the fixed plate 21 and the bearing plate 22 to rotate, the bearing plate 22... One side bevel rack 42 drives the first gear 43 to rotate via bevel gear 41. The first gear 43 drives the rotating shaft 38 and welding torch 39 to rotate at a certain angle via the second gear 44. This starts the drive motor 2 in the fixed plate 21 to drive the carrier plate 22 to rotate. When the carrier plate 22 drives the lower base plate 23, the machine base 25 and the upper base plate 28 to rotate, the welding torch 39 can weld the lower base plate 23 and the side plate 26. After the carrier plate 22 rotates one revolution, the bevel rack 42 drives the bevel gear 41 to rotate again, which in turn drives the welding torch 39 to rotate 180°, enabling the welding torch 39 to weld the upper base plate 28 and the side plate 26, thus completing the welding to form the stator.

[0061] Reference Figure 9 A rectangular magnet 45 is bolted to the side of the vertical plate 37 near the workbench 17. Two iron load-bearing blocks 46 are bolted to the side of the second gear 44 near the workbench 17. The iron load-bearing blocks 46 cooperate with the rectangular magnet 45. The first gear 43 drives the rotating shaft 38 and the welding torch 39 to rotate at a certain angle through the second gear 44. When the bevel gear 41 disengages from the bevel rack 42, the second gear 44 continues to rotate under the gravity of the iron load-bearing blocks 46 until the rectangular magnet 45 generates a magnetic attraction force on the iron load-bearing block 46 at the top, which just enables the welding torch 39 to rotate 180°. This ensures that the rotating shaft 38 can still rotate 180° after the bevel rack 42 and the bevel gear 41 disengage from engagement. This is used to enable the welding torch 39 to weld the bearing plate 22 and the side plate 26 and the upper bottom plate 28 and the side plate 26, respectively.

[0062] Reference Figure 8Multiple electromagnets 36 are bolted to the top inner wall of the groove 34 inside the welding torch 39. A conveyor belt is provided on one side of the workbench 17, and the conveyor belt is slightly higher than the support plate 22. During assembly, the electromagnets 36 attract the upper base plate 28, allowing the operator to easily rotate the rotating plate 29 and the upper base plate 28 to align the positioning groove 35 in the upper base plate 28 with the side plate 26 and operate with the operator. In addition, when welding is completed, the rotating plate 29 drives the stator to move upward through the magnetic attraction of the electromagnets 36 to the upper base plate 28. The stator detaches from the guide column 24. Then the rotating column 18 drives the placement plate 19 to rotate 90°. At this time, the support plate 22 is located below the conveyor belt, while the stator is located above the conveyor belt. The stator is placed on the conveyor belt by the electric push rod 33 and transported to the next process.

[0063] Reference Figure 10 , Figure 11 and Figure 12 The pressure plate 30 has two sliding grooves 47, which are connected to the through hole 31. Each of the two sliding grooves 47 has a sliding rod 48 slidably connected to it. The sides of the two pressure rods 48 that are close to each other are respectively fixedly connected to a first positive magnet 50 and a first negative magnet 51 by bolts. A rotating head 49 is rotatably connected to one side of the pressure plate 30. The sides of the rotating head 49 that are far apart from each other are respectively fixedly connected to a second negative magnet 52 and a second positive magnet 53 by bolts. Rotating the rotating head 49 causes the second negative magnet 52 and the second positive magnet 53 to rotate. When the first positive magnet 50 and the second negative magnet 52 move closer together, the two pressure rods 48... The plate can move towards the center. At this time, the two pressure rods 48 are blocked in the through hole 31. When the pressure plate 30 moves down, it can squeeze the stacked silicon steel sheets through the pressure rods 48 to ensure that the silicon steel sheets are neat. Conversely, when the first positive magnet 50 and the second positive magnet 53 are aligned, the two pressure rods 48 move to one side and release the pressure rods 48 from blocking the through hole 31. At this time, the silicon steel sheets can pass through the through hole 31 and fit on the outer wall of the guide post 24 to continue to complete the stacking of silicon steel sheets. Since the outer wall of the silicon steel sheet is in contact with the inner wall of the through hole 31, the silicon steel sheet passing through the through hole 31 can be stably fitted on the outer wall of the guide post 24 to avoid the silicon steel sheets tilting when stacking.

[0064] Working principle: During assembly, the electric push rod 33 is activated. The output shaft of the electric push rod 33 pushes the pressure plate 30 upward, placing the lower base plate 23 into the groove 34. The electric push rod 33 then drives the pressure plate 30 downward until the guide post 24 penetrates the pressure plate 30. Next, multiple silicon steel sheets are sequentially fitted onto the guide post 24 through the through holes 31. Since the inner wall of the through hole 31 fits against the outer wall of the silicon steel sheet, the silicon steel sheet is kept flat when fitted onto the guide post 24 through the through hole 31. Then, the rotating head 49 is rotated, causing the second negative magnet 52 and the second positive magnet 53 to rotate 180°. At this time, the first positive magnet 50 and the second negative magnet 52, and the first negative magnet 51 and the second positive magnet 53, close their mutual magnetic attraction. Then, the two pressure rods 48 move towards the center, blocking the through hole 31, and are positioned on both sides of the guide post 24. Next, the electric push rod 33 drives the pressure plate 30 downwards, which in turn drives the pressure rods 48 downwards. This allows the pressure rods 48 to compress the initially stacked silicon steel sheets, ensuring their flatness. Then, the rotating head 49 rotates, and the repulsive force between the first positive magnet 50 and the second positive magnet 53, and between the first negative magnet 51 and the second negative magnet 52, moves the pressure rods 48 to both sides, allowing for further stacking of silicon steel sheets. When the quantity reaches a certain point, the pressure plate 30 and pressure rods 48 compress the silicon steel sheets again, repeating this process. This ensures the flatness of the stacked silicon steel sheets when stacking a large number of sheets, preventing defects. The machine base 25 is formed by stacking multiple silicon steel sheets at an angle. An electric push rod 33 pushes the pressure plate 30 upwards, inserting multiple side plates 26 into positioning slots 35. These slots limit the movement of the silicon steel sheets. The upper base plate 28 is then placed into the groove 34 within the rotating disk 29. The electromagnet 36 is activated, attracting the upper base plate 28 into the groove 34. The electric push rod 33, via the pressure plate 30, moves the rotating disk 29 and the upper base plate 28 downwards. At this point, the top of the side plates 26 extends into the positioning slots 35 within the upper base plate 28. The upper base plate 28 and the lower base plate 23 then press and fix the machine base 25 and the side plates 26. Assembly is complete. The drive motor 2 (not shown in the figure) within the workbench 17 is activated to drive the rotating column 18 and the placement plate 19 to rotate. At 0°, the assembled stator is aligned with the vertical plate 37. When the placement plate 19 drives the fixing plate 21 and the support plate 22 to rotate, the bevel rack 42 on one side of the support plate 22 drives the first gear 43 to rotate through the bevel gear 41. The first gear 43 drives the rotating shaft 38 and the welding torch 39 to rotate at a certain angle through the second gear 44 (since the inner diameter of the first gear 43 is smaller than the inner diameter of the second gear 44, the first gear 43 can drive the second gear 44 to rotate at an angle greater than 90° but less than 180°). After the bevel gear 41 disengages from the bevel rack 42, the second gear 44 continues to rotate under the gravity of the iron support block 46 until the rectangular magnet 45 generates a magnetic attraction force on the iron support block 46 at the top, which just enables the welding torch 39 to rotate 180°.The drive motor 2 (not labeled in the figure) inside the fixed plate 21 is started to drive the carrier plate 22 to rotate. When the carrier plate 22 drives the lower base plate 23, the machine base 25 and the upper base plate 28 to rotate, the welding torch 39 can weld the lower base plate 23 and the side plate 26. After the carrier plate 22 rotates one revolution, the bevel gear 42 drives the bevel gear 41 to rotate again, which in turn drives the welding torch 39 to rotate 180°, enabling the welding torch 39 to weld the upper base plate 28 and the side plate 26, completing the welding to form the stator. The electric push rod 33 is activated. Its output shaft drives the pressure plate 30 and rotating disk 29 upwards. The rotating disk 29, through the magnetic attraction of the electromagnet 36 to the base plate 28, causes the stator to move upwards, detaching from the guide column 24. Then, the rotating column 18 drives the placement plate 19 to rotate 90°. At this point, the bearing plate 22 is below the conveyor belt, while the stator is above it. The electric push rod 33 places the stator onto the conveyor belt, transporting it to the next process.

[0065] However, as is well known to those skilled in the art, the working principle and wiring method of electromagnet 36 are commonplace and are all conventional methods or common knowledge, so they will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0066] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. In the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A fabrication apparatus for a permanent magnet synchronous motor, characterized in that, It includes a worktable and a lower base plate, a machine base, an upper base plate and four side plates located above the worktable. A rotating column is rotatably connected to the top of the worktable. A placement plate is fixedly fitted on the outer wall of the rotating column, and a top plate is fixedly connected to the top of the rotating column. Two sets of assembly structures are respectively set on the top two sides of the placement plate for assembling the stator; A welding structure, located on one side of the workbench, is used for automatic welding of the assembled stator. The assembly structure includes a fixed plate fixedly connected to the top of the placement plate. A bearing plate is rotatably connected to the top of the fixed plate. A drive motor is housed within the fixed plate, and the output shaft of the drive motor is fixedly connected to the bottom of the bearing plate. A sliding column is fixedly connected to the top of the fixed plate, and the top of the sliding column is fixedly connected to the bottom of the top plate. A pressure plate is slidably fitted onto the outer wall of the sliding column, and the pressure plate has a through hole. An electric push rod is fixedly connected to the top of the fixed plate, and the output shaft of the electric push rod is fixedly connected to the bottom of the pressure plate. A rotating disk is rotatably connected to the bottom of the pressure plate. Grooves are provided on the sides of the rotating disk and the bearing plate that are close to each other, and the two grooves are respectively connected to the lower bottom plate and the upper bottom plate. The plates are fitted together, and a guide column that penetrates the machine base is fixedly connected to the bottom inner wall of the groove in the bearing plate. The outer wall of the machine base is provided with four through slots, and the through slots are fitted with the side plates. The lower base plate and the upper base plate are provided with multiple positioning slots that are fitted with the side plates on the side that are close to each other. The machine base is located between the lower base plate and the upper base plate. The welding structure includes a vertical plate set on one side of the worktable. A rotating shaft and a rotating rod are rotatably connected to the side of the vertical plate that is close to the worktable. The rotating rod is located below the rotating shaft. A welding gun is fixedly connected to one end of the rotating shaft. A second gear and a first gear that mesh with each other are fixedly sleeved on the outer walls of the rotating shaft and the rotating rod, respectively. A bevel gear is fixedly connected to the end of the rotating rod that is away from the vertical plate. A bevel rack is fixedly connected to the outer wall of the bearing plate, and the bevel gear meshes with the bevel rack.

2. The equipment for manufacturing a permanent magnet synchronous motor according to claim 1, characterized in that, A rectangular magnet is fixedly connected to the side of the vertical plate closest to the workbench, and two iron load-bearing blocks are fixedly connected to the side of the second gear closest to the workbench, with the iron load-bearing blocks cooperating with the rectangular magnet.

3. The equipment for manufacturing a permanent magnet synchronous motor according to claim 2, characterized in that, Multiple electromagnets are fixedly connected to the top inner wall of the groove inside the welding torch, and a conveyor belt is provided on one side of the worktable.

4. The equipment for manufacturing a permanent magnet synchronous motor according to claim 3, characterized in that, The pressure plate has two sliding grooves connected to the through hole. Each of the two sliding grooves has a pressure rod slidably connected to it. The first positive magnet and the first negative magnet are fixedly connected to the side of the two pressure rods that are close to each other. A rotating head is rotatably connected to one side of the pressure plate. The second negative magnet and the second positive magnet are fixedly connected to the side of the rotating head that are far apart from each other.

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