A glue filling device for stepping motor stator

Abstract

The present invention relates to the technical field of motor potting, and discloses a stepper motor stator glue potting device, including a vacuum box and a jig, a support column is fixedly installed on the bottom wall of the vacuum box, a ball head is fixedly installed on the top of the support column, a support plate is movably installed on the top of the support column through the ball head, the jig is placed on the support plate, a centering positioning mechanism for limiting the jig is installed on the top of the support plate, and a plurality of support springs are evenly fixedly installed in the circumferential direction between the bottom wall of the vacuum box and the lower surface of the support plate. The present invention allows the glue injection head to carry out a comprehensive glue potting operation around the top of the stepper motor stator, and allows the stepper motor stator and the jig placed on the support plate to sway slightly, so that the glue can flow and penetrate into every corner inside the stepper motor stator better, and the glue helps to remove tiny bubbles that may be formed inside when it flows continuously, thereby improving the glue potting effect of the stepper motor stator.

Description

Technical Field

[0001] The invention relates to the technical field of motor potting, and in particular to a stepping motor stator glue potting device. Background Art

[0002] The stepper motor stator glue pouring device is a device used to pour insulating glue into the stator coil of the stepper motor. The design goal of this device is to ensure that the glue can be poured evenly and effectively between the stator coils to form a reliable insulation layer, increase the insulation performance, mechanical strength and heat dissipation capacity of the motor, and thus improve the overall performance and service life of the motor.

[0003] An existing servo motor stator glue filling device and process (Announcement No.: CN102969847B) has at least the following disadvantages: the above patent places the stator under the glue injection tube through a rotating platform in a vacuum box, and opens the valve on the glue injection tube to inject glue into the stator, thereby realizing stator glue filling under vacuum state; since there are many stator coils inside the stepper motor stator, it is difficult for glue to flow and penetrate into every corner inside the stepper motor stator, thereby affecting the glue filling effect on the stepper motor stator. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a stepping motor stator glue pouring device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A stepper motor stator glue filling device comprises a vacuum box and a jig, wherein a support column is fixedly installed on the bottom wall of the vacuum box, a ball head is fixedly installed on the top of the support column, a support plate is movably installed on the top of the support column through the ball head, the jig is placed on the support plate, a centering positioning mechanism for limiting the jig is installed on the top of the support plate, a plurality of supporting springs are evenly fixedly installed in a circumferential direction between the bottom wall of the vacuum box and the lower surface of the support plate, a glue injection tube is fixedly installed through the top of the vacuum box, a rotating joint is installed at the bottom end of the glue injection tube, a connecting head connected to the interior of the connecting head is rotatably installed at the bottom end of the glue injection tube through the rotating joint, a glue injection head connected to the interior of the connecting head is fixedly installed on the outer surface of the connecting head, and a shaking mechanism is installed between the connecting head and the support plate.

[0007] As a further solution of the present invention, the shaking mechanism includes a horizontal plate fixedly mounted on the outer surface of the connecting head, a rotating tube is rotatably mounted on the lower surface of the horizontal plate away from the connecting head, a reciprocating screw is inserted into the interior of the rotating tube, a connecting sleeve threadedly connected to the reciprocating screw is fixedly mounted on the bottom end of the rotating tube, the connecting sleeve is sleeved on the reciprocating screw, a portal frame is fixedly mounted on the bottom end of the reciprocating screw, a friction wheel is rotatably mounted inside the portal frame, the friction wheel is intermittently in contact with the upper surface of the support plate, a limiting assembly is installed between the portal frame and the horizontal plate, a transmission assembly is installed on the top of the rotating tube, and a knocking mechanism is installed on the outer surface of the portal frame.

[0008] As a further solution of the present invention, the limiting assembly includes a telescopic rod fixedly installed between the top end of the portal frame and the cross plate.

[0009] As a further solution of the present invention, the transmission assembly includes a transmission gear fixedly installed on the top of the rotating tube, and a plurality of mounting columns are evenly fixedly installed on the top wall of the vacuum box in the circumferential direction, and a gear ring is fixedly installed on the bottom ends of the plurality of mounting columns, and the transmission gear is meshed with the gear ring.

[0010] As a further solution of the present invention, an extrusion mechanism is installed inside the glue injection tube, and the extrusion mechanism includes an auger shaft rotatably installed inside the glue injection tube, the bottom end of the auger shaft is fixedly installed on the inner wall of the connecting head, and the outer surface of the glue injection tube near its top is fixedly installed with a feed pipe connected to its interior.

[0011] As a further solution of the present invention, a servo motor is fixedly installed at the top of the glue injection tube, and the output end of the servo motor passes through the top of the glue injection tube and is fixedly installed with the rotation center of the top of the auger shaft.

[0012] As a further solution of the present invention, the knocking mechanism includes a support plate fixedly mounted on the outer surface of the portal frame, a spring rod fixedly mounted on the outer surface of the support plate, a connecting plate fixedly mounted on the telescopic end of the spring rod, a knocking column fixedly mounted on the lower surface of the connecting plate, a cam fixedly mounted on the rotation center of the friction wheel through a rotating shaft, and the cam is a "b"-shaped structure.

[0013] As a further solution of the present invention, the centering positioning mechanism includes four slide grooves evenly opened on the upper surface of the support plate in the circumferential direction, and the inner wall of each slide groove is slidably installed with a clamping block for clamping the fixture, and a synchronization component is installed between the four clamping blocks.

[0014] As a further solution of the present invention, the synchronization assembly includes a guide column fixedly installed on the outer surface of each clamping block, the upper surface of the support plate close to the slide groove is provided with an annular groove, the inner wall of the annular groove is rotatably installed with a swivel, the upper surface of the swivel is evenly penetrated in the circumferential direction with four inclined grooves matching the guide column, and the guide column is slidably installed on the inner wall of the inclined groove.

[0015] As a further solution of the present invention, a worm is rotatably installed inside the support plate near the rotating ring, and a tooth groove meshing with the worm is opened on the outer periphery of the rotating ring. A rocker is fixedly installed on the end of the worm extending out of the support plate.

[0016] The beneficial effects of the present invention are:

[0017] 1. The servo motor drives the auger shaft to rotate, so that the auger shaft can squeeze the glue into the connector when it rotates, so that the glue can be squeezed out through the glue injection head. When the auger shaft rotates, it will drive the connector and the glue injection head to rotate synchronously, so that the glue injection head can carry out comprehensive glue filling operation around the top of the stepper motor stator, so that the glue can be evenly filled into the inside of the stepper motor stator to ensure the glue filling effect;

[0018] 2. When the connector rotates, the friction wheel is driven to move up and down through the shaking mechanism, so that the friction wheel can slowly shake up and down the edges around the support plate when moving up and down, so that the stepper motor stator placed on the support plate and the fixture can swing slightly synchronously, so that the glue can flow better and penetrate into every corner inside the stepper motor stator. The continuous flow of glue helps to remove tiny bubbles that may be formed inside, thereby improving the glue filling effect of the stepper motor stator;

[0019] 3. When the friction wheel and the upper surface of the support plate are against each other and roll due to friction, the rotating friction wheel will drive the cam to rotate through the rotating shaft, so that the cam can continuously lift and release the connecting plate, so that the knocking column can continuously knock on the support plate under the elastic force of the spring rod, so that the support plate produces a certain vibration, and the vibration is transmitted to the fixture and the stepper motor stator, so that the bubbles in the glue poured into the stepper motor stator escape, ensuring that the glue completely covers the stator coil, avoiding local insulation weaknesses, improving the glue filling quality of the stepper motor stator, and thus improving the overall performance of the stepper motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a stepping motor stator glue filling device proposed by the present invention;

[0021] Figure 2 A schematic diagram of the internal structure of a vacuum box of a stepping motor stator glue filling device proposed by the present invention;

[0022] Figure 3A schematic diagram of the structure of a glue injection pipe of a stepping motor stator glue injection device proposed by the present invention;

[0023] Figure 4 This is a schematic structural diagram of a glue injection tube and a auger shaft in a disassembled state of a stepping motor stator glue injection device proposed by the present invention;

[0024] Figure 5 This is a schematic diagram of the support plate structure of a stepping motor stator glue filling device proposed by the present invention;

[0025] Figure 6 This is a schematic diagram of the support plate and rotating ring structure of a stepping motor stator glue filling device proposed by the present invention;

[0026] Figure 7 for Figure 3 A magnified view of the structure in the middle.

[0027] In the figure: 1. vacuum box; 2. support column; 3. support plate; 4. ball head; 5. support spring; 6. glue injection tube; 7. rotating joint; 8. connector; 9. glue injection head; 10. feed pipe; 11. auger shaft; 12. cross plate; 13. rotating tube; 14. transmission gear; 15. connecting sleeve; 16. reciprocating screw rod; 17. door frame; 18. telescopic rod; 19. friction wheel; 20. servo motor; 21. support plate; 22. spring rod; 23. connecting plate; 24. knocking column; 25. cam; 26. slide groove; 27. clamping block; 28. guide column; 29. ​​annular groove; 30. swivel; 31. worm; 32. rocker; 33. tooth groove; 34. fixture; 35. mounting column; 36. gear ring; 37. inclined groove. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] Refer to the attached Figure 1 -Attached Figure 7A stepper motor stator glue filling device includes a vacuum box 1 and a fixture 34. The interior of the vacuum box 1 is connected to an external vacuum pump so that the external vacuum pump can perform a vacuum operation on the interior of the vacuum box 1. A support column 2 is fixedly installed on the bottom wall of the vacuum box 1. A ball head 4 is fixedly installed on the top of the support column 2. A support plate 3 is movably installed on the top of the support column 2 through the ball head 4. The fixture 34 is placed on the support plate 3. A centering positioning mechanism for limiting the position of the fixture 34 is installed on the top of the support plate 3. The circumference between the bottom wall of the vacuum box 1 and the lower surface of the support plate 3 is 1 / 4. A plurality of support springs 5 ​​are evenly and fixedly installed, and the support plate 3 is elastically supported on all sides by the plurality of support springs 5, so that the support plate 3 can have a certain inclination on all sides, thereby achieving the subsequent shaking effect of the support plate 3; a glue injection tube 6 is fixedly installed through the top of the vacuum box 1, and a rotating joint 7 is installed at the bottom end of the glue injection tube 6. A connecting head 8 connected to the interior of the glue injection tube 6 is rotatably installed through the rotating joint 7, and a glue injection head 9 connected to the interior of the glue injection tube 8 is fixedly installed on the outer surface of the connecting head 8, and a shaking mechanism is installed between the connecting head 8 and the support plate 3.

[0031] In this embodiment, the shaking mechanism includes a horizontal plate 12 fixedly mounted on the outer surface of the connecting head 8, a rotating tube 13 is rotatably mounted on the lower surface of the horizontal plate 12 away from the connecting head 8, a reciprocating screw 16 is inserted into the rotating tube 13, a connecting sleeve 15 threadedly connected to the reciprocating screw 16 is fixedly mounted on the bottom end of the rotating tube 13, the connecting sleeve 15 is sleeved on the reciprocating screw 16, a door frame 17 is fixedly mounted on the bottom end of the reciprocating screw 16, a friction wheel 19 is rotatably mounted inside the door frame 17, the friction wheel 19 is intermittently in contact with the upper surface of the support plate 3, in the initial state, the friction wheel 19 is in a suspended state, not in contact with the support plate 3, so that in the subsequent stepping motor stator When the glue inside is almost full, the support plate 3 is no longer shaken to prevent the glue from overflowing from the inside of the stepper motor stator when the glue continues to be poured; a rubber layer is provided on the upper surface of the support plate 3 to increase the friction between the friction wheel 19 and the support plate 3; a limit position assembly is installed between the door frame 17 and the cross plate 12, a transmission assembly is installed on the top of the rotating tube 13, and a knocking mechanism is installed on the outer surface of the door frame 17. The transmission assembly includes a transmission gear 14 fixedly installed on the top of the rotating tube 13, and a plurality of mounting columns 35 are evenly fixedly installed on the top wall of the vacuum box 1 in the circumferential direction, and a gear ring 36 is fixedly installed on the bottom end of the plurality of mounting columns 35, and the transmission gear 14 is meshed with the gear ring 36.

[0032] When the connector 8 rotates, the rotating tube 13 and the reciprocating screw 16 will be driven to rotate synchronously through the cross plate 12, so that the friction wheel 19 installed at the bottom end of the reciprocating screw 16 can roll in the circumferential direction of the upper surface of the support plate 3. When the rotating tube 13 rotates around the stator of the stepping motor, the transmission gear 14 fixedly installed at the top of the rotating tube 13 will rotate on the outside of the gear ring 36 meshing with it, so that the transmission gear 14 can drive the rotating tube 13 and the connecting sleeve 15 installed at its bottom to rotate. Since the connecting sleeve 15 is threadedly connected to the reciprocating screw 16, the connecting sleeve When 15 rotates, it can drive the reciprocating screw 16 to move up and down, so that the reciprocating screw 16 can drive the friction wheel 19 to move up and down accordingly, so that the friction wheel 19 can slowly shake up and down the edges around the support plate 3 when moving up and down, so that the stepper motor stator placed on the support plate 3 and the fixture 34 can swing slightly synchronously, so that the glue can flow better and penetrate into every corner inside the stepper motor stator, and the continuous flow of glue helps to remove tiny bubbles that may be formed inside, thereby improving the glue filling effect of the stepper motor stator.

[0033] In this embodiment, the limiting assembly includes a telescopic rod 18 fixedly installed between the top end of the portal frame 17 and the cross plate 12 .

[0034] When in use, the telescopic end of the telescopic rod 18 moves up and down following the portal frame 17 , so that the telescopic rod 18 can limit the position of the portal frame 17 , thereby ensuring the stability of the up and down movement of the reciprocating screw rod 16 .

[0035] In this embodiment, an extrusion mechanism is installed inside the glue injection tube 6, and the extrusion mechanism includes an auger shaft 11 rotatably installed inside the glue injection tube 6, the bottom end of the auger shaft 11 is fixedly installed on the inner wall of the connecting head 8, and a feed pipe 10 connected to the interior of the glue injection tube 6 is fixedly installed on the outer surface of the glue injection tube 6 near its top, and the feed pipe 10 is connected to an external glue storage tank. A servo motor 20 is fixedly installed on the top of the glue injection tube 6, and the output end of the servo motor 20 passes through the top of the glue injection tube 6 and is fixedly installed with the rotation center of the top of the auger shaft 11.

[0036] When in use, the servo motor 20 drives the auger shaft 11 to rotate, so that the auger shaft 11 can squeeze the glue into the connecting head 8 when rotating, so that the glue can be squeezed out through the glue injection head 9, and the squeezed glue falls into the inside of the stepper motor stator to complete the glue filling operation.

[0037] In this embodiment, the knocking mechanism includes a support plate 21 fixedly mounted on the outer surface of the door frame 17, a spring rod 22 is fixedly mounted on the outer surface of the support plate 21, a connecting plate 23 is fixedly mounted on the telescopic end of the spring rod 22, a knocking column 24 is fixedly mounted on the lower surface of the connecting plate 23, and a cam 25 is fixedly mounted on the rotation center of the friction wheel 19 through a rotating shaft, and the cam 25 is a "b"-shaped structure.

[0038] When the friction wheel 19 abuts against the upper surface of the support plate 3 and rolls due to the friction force, the rotating friction wheel 19 will drive the cam 25 to rotate through the rotating shaft, so that the cam 25 can continuously lift and release the connecting plate 23, so that the knocking column 24 can continuously knock on the support plate 3 under the elastic force of the spring rod 22, so that the support plate 3 produces a certain vibration, and the vibration is transmitted to the fixture 34 and the stator of the stepper motor, so that the bubbles in the glue filled into the stator of the stepper motor escape.

[0039] In this embodiment, the centering positioning mechanism includes four slide grooves 26 uniformly opened on the upper surface of the support plate 3 in the circumferential direction, and a clamping block 27 for clamping the fixture 34 is slidably installed on the inner wall of each slide groove 26. A synchronization component is installed between the four clamping blocks 27, and the synchronization component includes a guide column 28 fixedly installed on the outer surface of each clamping block 27. An annular groove 29 is opened on the upper surface of the support plate 3 near the slide groove 26, and a swivel 30 is rotatably installed on the inner wall of the annular groove 29. Four inclined grooves 37 matching the guide column 28 are uniformly opened in the circumferential direction on the upper surface of the swivel 30. The guide column 28 is slidably installed on the inner wall of the inclined groove 37, and a worm 31 is rotatably installed through the interior of the support plate 3 near the swivel 30. A tooth groove 33 meshing with the worm 31 is opened on the outer periphery of the swivel 30, and a rocker 32 is fixedly installed on the end of the worm 31 extending out of the outside of the support plate 3.

[0040] When the jig 34 is placed on the support plate 3, the rocker 32 is rotated to drive the worm 31 to rotate, and the worm 31 drives the swivel 30 to rotate through the tooth grooves 33 meshing with the swivel 30 provided on the outer periphery of the swivel 30, so that the swivel 30 can apply a thrust to the guide column 28 on the clamping block 27 through the inclined groove 37, so that the four clamping blocks 27 can synchronously move toward the middle, and the jig 34 is clamped and positioned in the center, so that the stepper motor stator is just located below the glue injection head 9, which is convenient for the subsequent glue filling operation.

[0041] From the above description, it can be seen that the above-mentioned embodiment of the present invention achieves the following technical effects: when in use, the installed stepper motor stator and the fixture 34 are placed on the support plate 3, and the fixture 34 is clamped and positioned in the center by the center positioning mechanism, the door of the vacuum box 1 is closed, and the external vacuum pump is connected to the inside of the vacuum box 1, so that the external vacuum pump evacuates the inside of the vacuum box 1. After the vacuuming is completed, the connection between the vacuum pump and the inside of the vacuum box 1 is disconnected. At this time, the servo motor 20 is started, so that the servo motor 20 drives the auger shaft 11 to rotate, so that the auger shaft 11 can squeeze the glue into the connector 8 when rotating, so that the glue can be squeezed out through the glue injection head 9, and the squeezed glue falls into the inside of the stepper motor stator, completing the glue filling operation;

[0042] When the auger shaft 11 rotates, the connector 8 and the glue injection head 9 will be driven to rotate synchronously, so that the glue injection head 9 can perform a comprehensive glue injection operation around the stator of the stepper motor, so that the glue can be evenly filled into the stator of the stepper motor to ensure the glue injection effect;

[0043] When the connector 8 rotates, the rotating tube 13 and the reciprocating screw 16 will be driven to rotate synchronously through the cross plate 12, so that the friction wheel 19 installed at the bottom end of the reciprocating screw 16 can roll in the circumferential direction of the upper surface of the support plate 3. When the rotating tube 13 rotates around the stator of the stepping motor, the transmission gear 14 fixedly installed at the top of the rotating tube 13 will rotate on the outside of the gear ring 36 meshing with it, so that the transmission gear 14 can drive the rotating tube 13 and the connecting sleeve 15 installed at its bottom to rotate. Since the connecting sleeve 15 is threadedly connected to the reciprocating screw 16, the connecting sleeve When rotating, 15 can drive the reciprocating screw 16 to move up and down, so that the reciprocating screw 16 can drive the friction wheel 19 to move up and down accordingly, so that the friction wheel 19 can slowly shake the edges around the support plate 3 up and down when moving up and down, so that the stepper motor stator placed on the support plate 3 and the fixture 34 can swing slightly synchronously, so that the glue can flow better and penetrate into every corner inside the stepper motor stator, and the continuous flow of glue can help remove the tiny bubbles that may be formed inside, thereby improving the glue filling effect of the stepper motor stator;

[0044] When the friction wheel 19 abuts against the upper surface of the support plate 3 and rolls due to the friction force, the rotating friction wheel 19 will drive the cam 25 to rotate through the rotating shaft, so that the cam 25 can continuously lift and release the connecting plate 23, so that the knocking column 24 can continuously knock on the support plate 3 under the elastic force of the spring rod 22, so that the support plate 3 produces a certain vibration, and the vibration is transmitted to the fixture 34 and the stepper motor stator, so that the bubbles in the glue poured into the stator of the stepper motor escape, ensuring that the glue completely covers the stator coil, avoiding local insulation weaknesses, improving the glue filling quality of the stepper motor stator, and thereby improving the overall performance of the stepper motor.

[0045] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A stepper motor stator glue potting device, comprising a vacuum box (1) and a fixture (34), characterized in that: A support column (2) is fixedly mounted on the bottom wall of the vacuum box (1), a ball head (4) is fixedly mounted on the top of the support column (2), a support plate (3) is movably mounted on the top of the support column (2) through the ball head (4), the jig (34) is placed on the support plate (3), a centering positioning mechanism for limiting the jig (34) is mounted on the top of the support plate (3), a plurality of support springs (5) are evenly fixedly mounted in a circumferential direction between the bottom wall of the vacuum box (1) and the lower surface of the support plate (3), a glue injection tube (6) is fixedly mounted through the top of the vacuum box (1), a rotary joint (7) is mounted on the bottom end of the glue injection tube (6), a connector (8) connected to the inside of the glue injection tube (6) is rotatably mounted on the bottom end of the glue injection tube (6) through the rotary joint (7), a glue injection head (9) connected to the inside of the glue injection tube (8) is fixedly mounted on the outer surface of the connector (8), and a shaking mechanism is mounted between the connector (8) and the support plate (3).

2. A stepper motor stator glue pouring device according to claim 1, characterized in that: The shaking mechanism comprises a horizontal plate (12) fixedly mounted on the outer surface of the connecting head (8); a rotating tube (13) is rotatably mounted on the lower surface of the horizontal plate (12) at one end away from the connecting head (8); a reciprocating screw (16) is inserted into the interior of the rotating tube (13); a connecting sleeve (15) threadedly connected to the reciprocating screw (16) is fixedly mounted on the bottom end of the rotating tube (13); the connecting sleeve (15) is sleeved on the reciprocating screw (16); a door frame (17) is fixedly mounted on the bottom end of the reciprocating screw (16); a friction wheel (19) is rotatably mounted inside the door frame (17); the friction wheel (19) is in intermittent contact with the upper surface of the support plate (3); a limiting assembly is mounted between the door frame (17) and the horizontal plate (12); a transmission assembly is mounted on the top end of the rotating tube (13); and a knocking mechanism is mounted on the outer surface of the door frame (17).

3. A stepper motor stator glue pouring device according to claim 2, characterized in that: The position limiting assembly comprises a telescopic rod (18) fixedly mounted between the top end of the door frame (17) and the cross plate (12).

4. A stepper motor stator glue pouring device according to claim 2, characterized in that: The transmission assembly comprises a transmission gear (14) fixedly mounted on the top of a rotating tube (13); a plurality of mounting posts (35) are evenly and fixedly mounted on the top wall of the vacuum box (1) in a circumferential direction; a gear ring (36) is fixedly mounted on the bottom ends of the plurality of mounting posts (35); and the transmission gear (14) meshes with the gear ring (36).

5. The stepping motor stator glue pouring device according to claim 1, characterized in that: An extrusion mechanism is installed inside the injection tube (6), and the extrusion mechanism includes an auger shaft (11) rotatably installed inside the injection tube (6), the bottom end of the auger shaft (11) is fixedly installed on the inner wall of the connector (8), and a feed pipe (10) connected to the inside of the injection tube (6) is fixedly installed on the outer surface of the injection tube (6) near its top.

6. A stepper motor stator glue pouring device according to claim 5, characterized in that: A servo motor (20) is fixedly mounted on the top of the glue injection tube (6); an output end of the servo motor (20) passes through the top of the glue injection tube (6) and is fixedly mounted to the rotation center of the top of the auger shaft (11).

7. A stepper motor stator glue pouring device according to claim 2, characterized in that: The knocking mechanism comprises a support plate (21) fixedly mounted on the outer surface of the door frame (17), a spring rod (22) fixedly mounted on the outer surface of the support plate (21), a connecting plate (23) fixedly mounted on the telescopic end of the spring rod (22), a knocking column (24) fixedly mounted on the lower surface of the connecting plate (23), a cam (25) fixedly mounted on the rotation center of the friction wheel (19) via a rotating shaft, the cam (25) being a "b"-shaped structure, and a spring rod (22) fixedly mounted on the outer surface of the support plate (31) and a connecting plate (23) fixedly mounted on the lower surface of the connecting plate (23). ) and roll due to friction, the rotating friction wheel (19) will drive the cam (25) to rotate through the rotating shaft, so that the cam (25) can continuously lift and release the connecting plate (23), so that the knocking column (24) can continuously knock the supporting plate (3) under the elastic force of the spring rod (22), so that the supporting plate (3) produces a certain vibration, and the vibration is transmitted to the jig (34) and the stepper motor stator, so as to achieve knocking, so that the bubbles in the glue filled into the stator of the stepper motor escape.

8. The stepping motor stator glue pouring device according to claim 1, characterized in that: The centering positioning mechanism comprises four slide grooves (26) uniformly arranged in a circumferential direction on the upper surface of the support plate (3), the inner wall of each slide groove (26) being slidably mounted with a clamping block (27) for clamping the fixture (34), and a synchronization component being mounted between the four clamping blocks (27).

9. A stepper motor stator glue pouring device according to claim 8, characterized in that: The synchronization assembly comprises a guide column (28) fixedly mounted on the outer surface of each clamping block (27); an annular groove (29) is provided on the upper surface of the support plate (3) close to the slide groove (26); a rotating ring (30) is rotatably mounted on the inner wall of the annular groove (29); four inclined grooves (37) matching the guide column (28) are evenly penetrated in the circumferential direction of the upper surface of the rotating ring (30); the guide column (28) is slidably mounted on the inner wall of the inclined groove (37).

10. A stepper motor stator glue pouring device according to claim 9, characterized in that: A worm (31) is rotatably mounted inside the support plate (3) near the rotating ring (30), a tooth groove (33) meshing with the worm (31) is formed on the outer periphery of the rotating ring (30), and a rocker (32) is fixedly mounted on one end of the worm (31) extending outside the support plate (3).

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