A permanent magnet synchronous motor assembly fixture

Abstract

This invention relates to the technical field of motor assembly fixtures, and more particularly to an assembly fixture for a permanent magnet synchronous motor. The fixture includes an assembly body, a base plate, and a rotating plate positioned above the base plate. The assembly body also includes a rotating assembly, a connecting rod, and an adjusting assembly, the adjusting assembly including an adjusting block. A first fixing plate is fixedly mounted on the bottom of the rotating plate, and a first gear is fixedly mounted on the bottom of the first fixing plate. A second gear is fixedly mounted on the top of the vertical rod of the connecting rod, and the second gear is located directly below the first gear. The top of the adjusting block includes a plane and two inclined surfaces, with the two inclined surfaces positioned on opposite sides of the plane. The angle formed by the extensions of the two sides of the plane is denoted as angle 1. The rotating assembly drives the connecting rod to rotate synchronously. This invention expands the applicability of assembly fixtures.

Description

Technical Field

[0001] This invention relates to the technical field of motor assembly fixtures, and in particular to an assembly fixture for a permanent magnet synchronous motor. Background Technology

[0002] A permanent magnet synchronous motor (PMSM) is a synchronous motor that uses permanent magnets to generate a magnetic field. The rotor speed is synchronized with the current frequency of the stator windings. The working principle of a PMSM is based on the interaction between the rotating magnetic field generated by the stator and the magnetic field generated by the permanent magnets on the rotor. The rotor is equipped with pre-magnetized permanent magnets, which generate a strong magnetic field when rotating, thus providing greater output torque.

[0003] Chinese patent number 202510415275.X discloses a permanent magnet synchronous motor rotor magnet assembly equipment, relating to the field of motor assembly technology. The permanent magnet synchronous motor rotor magnet assembly equipment includes a mounting platform, on which support legs are fixedly mounted. A stabilizing platform is fixedly mounted on the support legs, and a motor rotor is mounted on the stabilizing platform. A placement cavity is formed on the motor rotor. Electric telescopic rods are fixedly mounted on both sides of the mounting platform. A stabilizing plate is fixedly mounted on the top of the electric telescopic rods, and a connecting platform is fixedly mounted on the bottom of the stabilizing plate. The connecting platform is located on the top of the motor rotor, and an assembly mechanism is provided on one side of the connecting platform. The assembly mechanism includes a sealing component, an injection component, and an adjusting component. A fixing column is fixedly mounted on the top of the connecting platform, and a fixing platform is fixedly mounted on one side of the fixing column. The sealing component is located on the fixing platform.

[0004] This patent has a significant drawback: when the number of placement cavities on the motor rotor changes, the mechanical structure of this device becomes ineffective, failing to guarantee that the placement cavities on the motor rotor are precisely positioned below the injection molding parts and the connector plate during each rotation. This device is suitable for a single specification of electronic rotor; when expanding product specifications, it cannot complete the assembly process. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a permanent magnet synchronous motor assembly fixture, which has the effect of expanding the application range of assembly fixtures.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0007] A permanent magnet synchronous motor assembly fixture includes an assembly body, the assembly body including a base plate, a rotating plate disposed above the base plate, the assembly body also including a rotating component, a connecting rod and an adjusting component, the adjusting component including an adjusting block;

[0008] A first fixed plate is fixedly installed at the bottom of the rotating plate, a first toothed disc is fixedly installed at the bottom of the first fixed plate, and a second toothed disc is fixedly installed at the top of the vertical rod of the connecting rod, with the second toothed disc located directly below the first toothed disc.

[0009] The top of the adjustment block includes a plane and two inclined surfaces, with the two inclined surfaces arranged on both sides of the plane. The included angle formed by the extension lines of the two sides of the plane is denoted as angle 1.

[0010] The rotating component drives the connecting rod to rotate synchronously, so that the connecting rod contacts the adjusting block and adjusts the position and height of the connecting rod, so that the first gear plate contacts the second gear plate and drives the first fixed plate to rotate, and the rotation angle is the same as the angle value.

[0011] In a preferred embodiment, the present invention can be further configured such that: the rotating assembly includes a first motor, the first motor is fixedly mounted on the top of the base plate, and a first rotating wheel is provided at the top output end of the first motor;

[0012] A first fixing rod is fixedly installed on the top of the base plate, and a second rotating wheel is rotatably installed on the top of the first fixing rod. The position height of the first rotating wheel is equal to that of the second rotating wheel, and the second rotating wheel is connected to the first rotating wheel by a belt.

[0013] The connecting rod is mounted on the second rotating wheel, and a sliding assembly is provided on both the connecting rod and the second rotating wheel.

[0014] In a preferred embodiment, the present invention can be further configured such that: the sliding component includes two first guide rods, both of which are vertically fixed to the top of the second rotating wheel, and both of which pass through the second rotating wheel, and the second rotating wheel is slidably connected to the two first guide rods;

[0015] Each of the first guide rods is fitted with a spring on its outer circumference, and the two ends of the spring are respectively fixed to the connecting rod and the second rotating wheel.

[0016] In a preferred embodiment, the present invention can be further configured such that: a second fixing plate is fixedly sleeved on the upper half of the outer circumferential surface of the first fixing rod, the adjusting block is fixed on the top of the second fixing plate, and the adjusting block is located between the first rotating wheel and the second rotating wheel;

[0017] When both springs are in their natural state, as the connecting rod rotates with the second rotating wheel, the connecting rod first touches one of the inclined surfaces.

[0018] In a preferred embodiment, the present invention can be further configured as follows: a third fixing plate is fixedly disposed on the top of the base plate, a first through hole is provided on the upper half of one side of the third fixing plate, a first electric telescopic rod is disposed at the bottom of the inner wall of the first through hole, a sliding plate is slidably disposed in the first through hole, an adhesive injector is fixedly disposed on the sliding plate, and the telescopic end of the first electric telescopic rod is fixed to the sliding plate.

[0019] In a preferred embodiment, the present invention can be further configured as follows: a second electric telescopic rod is fixedly disposed on one side of the third fixed plate, a first insulating plate is fixedly disposed at the output end of the second electric telescopic rod, a first iron plate is disposed on the top of the first insulating plate, a second insulating plate is also fixedly disposed on one side of the third fixed plate, a second iron plate is fixedly disposed at the bottom of the second insulating plate, and the second iron plate is located directly above the first iron plate.

[0020] In a preferred embodiment, the present invention may be further configured such that an anti-inertial rotation component is provided on the top of the base plate;

[0021] The anti-inertia rotation assembly includes a second fixed rod, and a third rotating wheel is provided at the top of the second fixed rod with damping rotation. The third rotating wheel is in contact with the first fixed plate.

[0022] In a preferred embodiment, the present invention may be further configured such that: both the outer peripheral surface of the first fixing plate and the outer peripheral surface of the third rotating wheel are provided with an anti-slip layer.

[0023] In summary, the present invention has at least one of the following beneficial technical effects:

[0024] 1. By setting up an adjusting block, a connecting rod, and a rotating assembly, when the rotating assembly drives the connecting rod to pass through the plane on the adjusting block, the first toothed disc and the second toothed disc come into contact and drive the rotating plate to rotate. By controlling the angle formed by the extended lines of the two ends of the plane in the adjusting block, the rotation degree of the rotating plate can be precisely controlled, so that the device can adapt to different specifications (i.e., motor rotors with different numbers of placement cavities), expand the applicability of the device, and reduce the manufacturing cost of factory equipment.

[0025] 2. By setting inclined surfaces on both sides of the plane in the adjusting block, the connecting rod in the initial state of the spring first contacts the inclined surface when it rotates, so that the connecting rod can easily transition to the plane, ensuring the reliability of the device operation.

[0026] 3. By installing a spring between the second rotating wheel and the connecting rod, the elastic restoring force of the spring ensures that the connecting rod always maintains its initial state when it is not in contact with the adjusting block, thus preventing the first toothed disc from contacting the second toothed disc and further ensuring the reliability of the device.

[0027] 4. By setting a first electric telescopic rod and a sliding plate, the first electric telescopic rod drives the sliding plate to move, thereby changing the distance between the glue injector and the third fixed plate. This allows the device to achieve precise glue injection by changing the position of the glue injector when dealing with motor rotors of different radii, further expanding the application range of the device. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0029] Figure 2 yes Figure 1 Enlarged structural diagram at point A in the middle;

[0030] Figure 3 yes Figure 2 A top view of the structure of the central adjustment block;

[0031] Figure 4 yes Figure 1 Enlarged structural diagram at point B;

[0032] Figure 5 yes Figure 1 A schematic diagram of the left-side structure of the third fixed plate.

[0033] In the diagram, 1. Assembly body; 11. Base plate; 12. Rotating plate; 2. Rotating assembly; 3. Connecting rod; 4. Adjusting assembly; 41. Adjusting block; 121. First fixed plate; 122. First gear plate; 31. Second gear plate; 411. Plane; 412. Inclined surface; 413. Angle 1; 21. First motor; 211. First rotating wheel; 22. First fixed rod; 23. Second rotating wheel; 5. Sliding assembly; 51. First guide rod; 52. Spring; 42. Second fixed plate; 6. Third fixed plate; 61. First through hole; 62. First electric telescopic rod; 63. Sliding plate; 64. Glue injector; 7. Second electric telescopic rod; 71. First iron sheet; 72. Second iron sheet; 8. Anti-inertia rotation assembly; 81. Second fixed rod; 82. Third rotating wheel. Detailed Implementation

[0034] The present invention will be further described in detail below with reference to the accompanying drawings. Example

[0035] Reference Figure 1This invention discloses an assembly fixture for a permanent magnet synchronous motor, comprising an assembly body 1. The assembly body 1 includes a base plate 11. A plurality of support columns are fixedly mounted on the top of the base plate 11, and a rotating plate 12 is supported on the support columns. An annular groove is formed at the bottom of the rotating plate 12, and the tops of the support columns are all located within the annular groove. A ball bearing is movably mounted on the top of each support column, and the ball bearing contacts the inner wall of the annular groove. A plate is provided on one side of the inner wall of the annular groove, and the plate is located within the support columns. The plate is slidably connected to the support columns. During the rotation of the rotating plate 12, the position and height of the rotating plate 12 do not change, and the rotating plate 12 remains horizontal at all times.

[0036] The top of the rotating plate 12 is provided with several electric rods, and the position of the rotor placed on the rotating plate 12 is fixed by the extension and retraction of the electric rods.

[0037] Reference Figure 1 and Figure 5 As shown, a third fixing plate 6 is fixedly installed on the top of the base plate 11. A first through hole 61 is provided on the upper half of one side of the third fixing plate 6, and a first electric telescopic rod 62 is provided on the bottom of the inner wall of the first through hole 61.

[0038] A sliding plate 63 is slidably disposed in the first through hole 61. Sliding strips are fixedly disposed on both sides of the sliding plate 63. The sliding strips are located inside the third fixed plate 6 and are slidably connected to the third fixed plate 6. The sliding strips support the sliding plate 63 to maintain a certain distance from the first electric telescopic rod 62.

[0039] A glue injector 64 is fixedly installed on the sliding plate 63. The glue injector 64 is an existing device. The glue injector 64 is connected to the glue storage tank (not shown in the figure) through a hose and a pump to achieve the purpose of quantitative delivery of glue.

[0040] The telescopic end of the first electric telescopic rod 62 is fixed to the sliding plate 63. The first telescopic rod changes the distance between the glue injector 64 and the third fixed plate 6, making this device applicable to motor rotors of different specifications.

[0041] A PLC controller (not shown in the figure) is installed on the outside of the assembly body 1. The PLC controller is electrically connected to the first telescopic rod.

[0042] Reference Figure 4 As shown, a second electric telescopic rod 7 is fixedly installed on one side of the third fixed plate 6. The second electric telescopic rod 7 is electrically connected to the PLC controller. A first insulating plate is fixedly installed at the output end of the second electric telescopic rod 7, and a first iron plate 71 is installed on the top of the first insulating plate. A second insulating plate is also fixedly installed on one side of the third fixed plate 6, and a second iron plate 72 is fixedly installed at the bottom of the second insulating plate. The second iron plate 72 is located directly above the first iron plate 71.

[0043] The first iron plate 71, the second iron plate 72, the power supply unit (not shown in the figure), and the glue injection unit are electrically connected. The glue injection unit activates when the first iron plate 71 and the second iron plate 72 come into contact. The glue injection unit stops operating when the first iron plate 71 and the second iron plate 72 separate. The glue injection volume can be precisely controlled by the dwell time of the extended end of the second electric telescopic rod 7.

[0044] Reference Figure 1 and Figure 2 As shown, the assembly body 1 also includes a rotating assembly 2. The rotating assembly 2 includes a first motor 21. The first motor 21 is connected to a PLC controller. When the second electric telescopic rod 7 stops working, the first motor 21 starts, rotates one revolution, and then stops working.

[0045] A first motor 21 is fixedly mounted on the top of the base plate 11, and a first rotating wheel 211 is provided at the top output end of the first motor 21. A first fixing rod 22 is fixedly mounted on the top of the base plate 11, and a second rotating wheel 23 is rotatably mounted on the top of the first fixing rod 22. The position height of the first rotating wheel 211 is equal to that of the second rotating wheel 23, and the second rotating wheel 23 is connected to the first rotating wheel 211 by a belt.

[0046] The first rotating wheel 211 and the second rotating wheel 23 are the same size. The first motor 21 drives the first rotating wheel 211 to rotate one revolution, and the second rotating wheel 23 also rotates the same number of revolutions.

[0047] Reference Figure 2 As shown, a connecting rod 3 is provided above the second rotating wheel 23, and a sliding assembly 5 is provided on both the connecting rod 3 and the second rotating wheel 23. The sliding assembly 5 includes two first guide rods 51, both of which are vertically fixed to the top of the second rotating wheel 23 and pass through the second rotating wheel 23, thus slidably connecting the second rotating wheel 23 and the two first guide rods 51. A limit plate is provided on the top of the two first guide rods 51.

[0048] Each first guide rod 51 is fitted with a spring 52 on its outer circumference. The two ends of the spring 52 are fixed to the connecting rod 3 and the second rotating wheel 23, respectively.

[0049] A first fixed plate 121 is fixedly installed at the bottom of the rotating plate 12, and a first toothed disc 122 is fixedly installed at the bottom of the first fixed plate 121. A second toothed disc 31 is fixedly installed at the top of the vertical rod in the connecting rod 3, and the second toothed disc 31 is located directly below the first toothed disc 122.

[0050] When the spring 52 is in its natural state, the first toothed disc 122 and the second toothed disc 31 are not in contact.

[0051] Reference Figure 2 and Figure 3As shown, the assembly body 1 also includes an adjustment component 4. The adjustment component 4 includes an adjustment block 41. A second fixing plate 42 is fixedly sleeved on the upper half of the outer circumferential surface of the first fixing rod 22. The adjustment block 41 is fixed to the top of the second fixing plate 42 by bolts, and the adjustment block 41 is detachably connected to the second fixing plate 42. The adjustment block 41 is located between the first rotating wheel 211 and the second rotating wheel 23. The adjustment block 41 does not contact the first rotating wheel 211, the second rotating wheel 23, or the belt.

[0052] Reference Figure 3 As shown, the top of the adjusting block 41 includes a flat surface 411 and two inclined surfaces 412. The two inclined surfaces 412 are located on both sides of the flat surface 411, and the included angle formed by the extension lines of the two sides of the flat surface 411 is denoted as angle 413. Since the number of magnets on the motor rotor is always even, and the cavities accommodating the magnets are evenly distributed on the rotor, the rotation angle of the motor rotor can be precisely achieved by controlling the degree of angle 413.

[0053] In the top view of the adjustment block 41, both long sides are arcs, and the two arc sides share the same arc center.

[0054] The rotating component 2 drives the connecting rod 3 to rotate synchronously, so that the connecting rod 3 contacts the adjusting block 41 and adjusts the position and height of the connecting rod 3, so that the first gear plate 122 contacts the second gear plate 31 and drives the first fixed plate 121 to rotate. The rotation angle is the same as the angle 413.

[0055] Due to the supporting force of the two springs 52, when the springs 52 are in their natural state, the connecting rod 3 is above the second rotating wheel 23.

[0056] When both springs 52 are in their natural state, as the connecting rod 3 rotates with the second rotating wheel 23, the connecting rod 3 first touches one of the inclined surfaces 412.

[0057] An anti-inertia rotation assembly 8 is provided on the top of the base plate 11. The anti-inertia rotation assembly 8 includes a second fixing rod 81, and a third rotating wheel 82 is provided on the top of the second fixing rod 81 for damping rotation. The third rotating wheel 82 is in contact with the first fixing plate 121. Both the outer peripheral surfaces of the first fixing plate 121 and the outer peripheral surfaces of the third rotating wheel 82 are provided with anti-slip layers.

[0058] The implementation principle of the above embodiments is as follows:

[0059] First, connect all electrical appliances to the mains power or power supply.

[0060] Before assembly, first select a suitable adjusting block 41 based on the number of magnets. In this embodiment, there are eight magnets. Therefore, a suitable adjusting block 41 is selected, and the angle 413 in the adjusting block 41 has a degree of forty-five degrees. If there are ten magnets, then the angle 413 in the adjusting block 41 has a degree of thirty-six degrees. The calculation formula is: three hundred and sixty divided by the number of magnets.

[0061] In this embodiment, eight magnets are used for calculation. The operator installs the appropriate adjusting block 41, paying attention to its installation position to ensure that the center of the arc of the curved side of the adjusting block 41 coincides with the horizontal projection of the center of the second rotating wheel 23. It is also important to ensure that the connecting rod 3 does not contact the adjusting block 41 at this time.

[0062] Next, the operator places the motor rotor on the rotating plate and activates the PLC controller to simultaneously control several electric levers to fix the motor rotor on the rotating plate, ensuring that the central axis of the motor rotor passes through the center of the rotating plate 12. Here, because the electric levers are all identical and move synchronously under the control of the PLC controller, the placement position of the motor rotor is guaranteed.

[0063] Next, the operator adjusts the position of the glue injector 64 using the first electric telescopic rod 62, so that the port of the glue injector 64 in the initial state is facing one of the placement chambers.

[0064] After the work begins, the PLC controller starts the second electric telescopic rod 7, which drives the first iron plate 71 to move, so that the first iron plate 71 and the second iron plate 72 are in contact. Then, the glue injector 64 is started, and the glue injector 64 injects glue into the corresponding placement cavity.

[0065] Once the injection volume reaches the required level, the PLC controller controls the telescopic end of the second telescopic rod to return to its initial position. As the telescopic end moves, the first iron plate 71 and the second iron plate 72 separate.

[0066] As the second telescopic rod stops moving, the PLC controller starts the first motor 21, causing it to immediately begin working. The first motor 21 drives the first rotating wheel 211 to rotate one revolution before stopping. The first motor 21 is a geared motor, and the PLC controller controls its rotation speed. The first rotating wheel 211 then drives the second rotating wheel 23 to rotate one revolution.

[0067] When the second rotating wheel 23 rotates, it drives the two first guide rods 51 to move. The two first guide rods 51 together drive the connecting rod 3 to move. As the connecting rod 3 moves, it touches one of the inclined surfaces 412 on the adjusting block 41. The connecting rod 3 rotates while moving upward along the inclined surface 412. As the position of the connecting rod 3 rises, it moves until it reaches the plane 411, at which point the first gear plate 122 contacts the second gear plate 31. At this time, the spring 52 is in an elastic tension state.

[0068] Next, the connecting rod 3 moves together with the second rotating wheel 23, and the connecting rod 3 continues to move on the plane 411. The first gear plate 122 is in close contact with the second gear plate 31 and drives the rotating plate 12 to move.

[0069] After the connecting rod 3 leaves the plane 411, the connecting rod 3 has rotated by an angle of 413, and the rotating plate 12 rotates by the same degree, which in turn causes the motor rotor to rotate by the same degree, and the next un-injected glue placement cavity moves into the glue injector 64.

[0070] After the connecting rod 3 leaves the plane 411, it enters another inclined plane 412 and continues to move towards the inclined plane 412. At this time, the spring 52 gradually returns to its initial state.

[0071] Furthermore, during the rotation of the first fixed plate 121, the first fixed plate 121 drives the third rotating wheel 82 to rotate. The force driving the first fixed plate 121 to rotate is greater than the force required to drive the third rotating wheel 82 to rotate.

[0072] When the first rotating wheel 211 stops rotating, the combined action of the belt and the damping on the third rotating wheel 82 causes the first fixed plate 121 to stop working immediately, ensuring the accuracy of the motor rotor rotation angle. Since the second rotating wheel 23 only rotates once, the connecting rod 3 returns to its initial position, again ensuring the accuracy of the motor rotor rotation angle with each rotation.

[0073] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A permanent magnet synchronous motor assembly fixture, comprising an assembly body (1), wherein the assembly body (1) includes a base plate (11), and a rotating plate (12) is disposed above the base plate (11), characterized in that, The assembly body (1) also includes a rotating component (2), a connecting rod (3) and an adjusting component (4), the adjusting component (4) including an adjusting block (41); The bottom of the rotating plate (12) is fixedly provided with a first fixed plate (121), the bottom of the first fixed plate (121) is fixedly provided with a first toothed disc (122), the top of the vertical rod of the connecting rod (3) is fixedly provided with a second toothed disc (31), and the second toothed disc (31) is located directly below the first toothed disc (122). The top of the adjustment block (41) includes a plane (411) and two inclined planes (412). The two inclined planes (412) are arranged on both sides of the plane (411), and the included angle formed by the extension lines of the two sides of the plane (411) is denoted as angle 1 (413). The rotating component (2) drives the connecting rod (3) to rotate synchronously, so that the connecting rod (3) contacts the adjusting block (41) and adjusts the position height of the connecting rod (3), so that the first gear plate (122) contacts the second gear plate (31) and drives the first fixed plate (121) to rotate, and the rotation angle is the same as the angle value of the angle (413).

2. The assembly fixture for a permanent magnet synchronous motor according to claim 1, characterized in that: The rotating assembly (2) includes a first motor (21), which is fixedly mounted on the top of the base plate (11), and a first rotating wheel (211) is provided at the top output end of the first motor (21). A first fixing rod (22) is fixedly installed on the top of the base plate (11), and a second rotating wheel (23) is rotatably installed on the top of the first fixing rod (22). The position height of the first rotating wheel (211) is equal to the position height of the second rotating wheel (23), and the second rotating wheel (23) is connected to the first rotating wheel (211) by a belt. The connecting rod (3) is mounted on the second rotating wheel (23), and the connecting rod (3) and the second rotating wheel (23) are both provided with a sliding component (5).

3. The assembly fixture for a permanent magnet synchronous motor according to claim 2, characterized in that: The sliding assembly (5) includes two first guide rods (51), both of which are vertically fixed to the top of the second rotating wheel (23), and both of which pass through the second rotating wheel (23). The second rotating wheel (23) is slidably connected to the two first guide rods (51). Each of the first guide rods (51) is fitted with a spring (52) on its outer circumference. The two ends of the spring (52) are fixed to the connecting rod (3) and the second rotating wheel (23), respectively.

4. The assembly fixture for a permanent magnet synchronous motor according to claim 3, characterized in that: The second fixing plate (42) is fixedly sleeved on the upper half of the outer peripheral surface of the first fixing rod (22), and the adjusting block (41) is fixed on the top of the second fixing plate (42), and the adjusting block (41) is located between the first rotating wheel (211) and the second rotating wheel (23); When both springs (52) are in their natural state, the connecting rod (3) first touches one of the inclined surfaces (412) as the second rotating wheel (23) rotates.

5. The assembly fixture for a permanent magnet synchronous motor according to claim 4, characterized in that: A third fixing plate (6) is fixedly installed on the top of the base plate (11). A first through hole (61) is opened on the upper half of one side of the third fixing plate (6). A first electric telescopic rod (62) is installed at the bottom of the inner wall of the first through hole (61). A sliding plate (63) is slidably installed in the first through hole (61). A glue injector (64) is fixedly installed on the sliding plate (63). The telescopic end of the first electric telescopic rod (62) is fixed to the sliding plate (63).

6. The assembly fixture for a permanent magnet synchronous motor according to claim 5, characterized in that: A second electric telescopic rod (7) is fixedly installed on one side of the third fixed plate (6). A first insulating plate is fixedly installed at the output end of the second electric telescopic rod (7). A first iron plate (71) is installed on the top of the first insulating plate. A second insulating plate is also fixedly installed on one side of the third fixed plate (6). A second iron plate (72) is fixedly installed at the bottom of the second insulating plate. The second iron plate (72) is located directly above the first iron plate (71).

7. The assembly fixture for a permanent magnet synchronous motor according to claim 6, characterized in that: The top of the base plate (11) is provided with an anti-inertial rotation component (8). The anti-inertia rotation assembly (8) includes a second fixed rod (81), and a third rotating wheel (82) is provided at the top of the second fixed rod (81) for damping rotation. The third rotating wheel (82) is in contact with the first fixed plate (121).

8. The assembly fixture for a permanent magnet synchronous motor according to claim 7, characterized in that: The outer peripheral surface of the first fixing plate (121) and the outer peripheral surface of the third rotating wheel (82) are both provided with anti-slip layers.

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