A potting device for a multi-station servo motor stator assembly

Abstract

The present invention is applicable to the technical field of stator potting, and provides a potting device for a multi-station servo motor stator assembly, including a potting mechanism, a pre-cutting mechanism, and a defense mechanism; the pre-cutting mechanism includes a chassis, a fixed seat, a flipping cylinder, a flipping table, an annular slide rail, an electric ring block, and a pre-cutting part; the defense mechanism includes an ear plate, a fixed ring, a fixed strip, a driving motor, a main defense part, and a secondary defense part; through the design of the pre-cutting mechanism, the resin between the surface of the stator assembly and the surface of the core shaft is pre-cut horizontally first, and then vertically circumferentially around the surface of the core shaft, so that the resin fixed between the core shaft and the stator assembly is completely separated, thereby improving the potting quality and further enhancing the potting effect.

Description

Technical Field

[0001] The present invention relates to the technical field of stator potting, and more specifically, it relates to a potting device for a multi-station servo motor stator assembly. Background Art

[0002] A servo motor is a high-precision motor that can achieve precise position, speed, or torque control through a closed-loop control system; it is widely used in fields that require precise motion control, such as robots, numerically controlled machine tools, automation equipment, etc.

[0003] The stator assembly is one of the core components of a servo motor, directly affecting the performance, efficiency, and control accuracy of the motor; at the same time, the potting of the stator assembly is also a key process in motor manufacturing. By encapsulating the stator winding and iron core with insulating materials (such as epoxy resin, polyurethane, or silicone), the mechanical strength, insulation performance, heat dissipation capacity, and environmental protection level are improved.

[0004] In the prior art, before potting the stator assembly, it is necessary to select epoxy resin, polyurethane, or silicone according to requirements, then pre-treat the stator (remove oil and dust), and finally perform a vacuum potting operation. By injecting under pressure in a vacuum environment, it is ensured that there are no air bubbles filled, thus achieving the potting of the stator assembly.

[0005] However, during the potting process, in order to avoid the generation of air bubbles caused by potting glue from top to bottom, some potting mechanisms will let the resin flow down along the surface of the mandrel for potting, then there will be resin remaining on the mandrel, and the resin will also cure simultaneously with the resin on the surface of the stator assembly. Furthermore, during the process of extracting the mandrel, the resin on the surface of the stator assembly and the mandrel will be pulled out synchronously, resulting in the resin on the stator surface being incomplete after curing, thus reducing the potting quality and being unfavorable for the potting effect; for this reason, a potting device for a multi-station servo motor stator assembly is proposed to improve the existing problems. Summary of the Invention

[0006] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a potting device for a multi-station servo motor stator assembly.

[0007] To achieve the above object, the present invention provides the following technical solution: A potting device for a multi-station servo motor stator assembly, including a potting mechanism, pre-cutting mechanisms symmetrically arranged at both ends of the potting mechanism, and defense mechanisms symmetrically arranged in the radial direction on the pre-cutting mechanisms; The pre-cutting mechanism includes a base frame, a fixed seat arranged on the top of the base frame, a flipping cylinder rotatably connected in the fixed seat, a flipping table rotatably connected to the telescopic end of the flipping cylinder, annular slide rails symmetrically arranged in the radial direction on one side of the flipping table, electric ring blocks evenly sliding on the annular slide rails, and pre-cutting parts arranged on the side of the electric ring blocks away from the annular slide rails; The defense mechanism includes ear plates evenly arranged on the side of the flipping table away from the annular slide rails, a fixed ring arranged between the ear plates, fixed bars arranged on the outer wall of the fixed ring, a driving motor arranged at the end of the fixed bar away from the fixed ring, main defense parts symmetrically arranged in the radial direction at the output end of the driving motor, and auxiliary defense parts arranged on one side of the main defense parts.

[0008] The present invention is further configured as: The potting mechanism includes a potting table, vertical plates symmetrically arranged in the radial direction on the top of the potting table, an X-axis horizontal electric linear guide rail arranged between the vertical plates, vertical electric linear guide rails symmetrically arranged on the X-axis horizontal electric linear guide rail, a lifting plate arranged on the vertical electric linear guide rail, and a potting gun arranged on one side of the lifting plate; On the top of the potting table, Y-axis horizontal electric linear guide rails are also symmetrically arranged in the radial direction, and a bearing plate is arranged on the Y-axis horizontal electric linear guide rail, and the bearing plate is located below the corresponding potting gun.

[0009] The present invention is further configured as: The top of the base frame is U-shaped, the flipping table is located inside the base frame, and one end of the flipping table is rotatably connected to the inner wall of the base frame; Lifting cylinders are symmetrically arranged below the base frame, and the telescopic ends of the lifting cylinders are connected to the inner wall of the base frame.

[0010] The present invention is further configured as: Through holes are symmetrically opened in the side wall of the flipping table in the radial direction, and the inner diameter of the annular slide rail can be concentrically distributed with the corresponding through holes; A linear slide rail is also arranged on the side wall of the electric ring block away from the annular slide rail, an electric slider is slidably arranged on the linear slide rail, and one side of the electric slider away from the linear slide rail is connected to the pre-cutting part, and the linear slide rail is perpendicular to the corresponding electric ring block.

[0011] The present invention is further configured such that: the pre-cutting member includes a connecting plate, a telescopic cylinder disposed on one side of the connecting plate, a telescopic block disposed at the telescopic end of the telescopic cylinder, a stretching bar rotatably connected to the side of the telescopic block away from the telescopic cylinder, a rotating block rotatably connected to one end of the stretching bar away from the telescopic block, and a pre-cutting knife disposed at one end of the rotating block away from the stretching bar; the side wall of the connecting plate away from the telescopic cylinder is connected to the side of the electric slider away from the linear slide rail, the connecting plate is arranged in the same direction as the corresponding linear slide rail, the rotating block is L-shaped, and the middle of the side wall of the rotating block is rotatably connected to the side of the connecting plate away from the electric slider.

[0012] The present invention is further configured such that: both the ear plate and the fixing strip are L-shaped, one end of the ear plate away from the fixing ring is connected to the side wall of the flipping table away from the annular slide rail, and a ring groove is formed on the side of the fixing ring away from the ear plate; the main defense members are distributed oppositely, and the main defense member includes a first main tooth, a second main tooth disposed on one side of the first main tooth, and a first main board disposed between the first main tooth and the second main tooth; the first main board is fan-shaped, the output end of the driving motor penetrates through the side wall of the fixing strip and is connected to one of the first main teeth, one of the first main teeth can mesh and drive with the other first main tooth, and the side wall of the other first main tooth is rotatably connected to the side wall of the fixing strip.

[0013] The present invention is further configured such that: the secondary defense member includes a first defense member, a second defense member disposed on one side of the first defense member, and a third defense member disposed on the side of the second defense member away from the first defense member; the first defense member, the second defense member, and the third defense member have the same structural size and are sequentially distributed in order. A first connecting block is disposed on one side of the first defense member, a first movable rod is disposed between the first defense member and the second defense member, a second connecting block is disposed between the second defense member and the third defense member, and a second movable rod is disposed on the side of the third defense member away from the second defense member.

[0014] The present invention is further configured such that: the first defense member includes a first secondary tooth, a second secondary tooth disposed on one side of the first secondary tooth, and a second main board disposed between the first secondary tooth and the second secondary tooth; the side wall of the first secondary tooth of the first defense member is rotatably connected to one side of the first connecting block, the side wall of the corresponding second main tooth is rotatably connected to one side of the first connecting block, and the first secondary tooth of the first defense member can mesh and drive with the corresponding second main tooth.

[0015] The present invention is further configured such that: both the first movable rod and the second movable rod are L-shaped. The side wall of the second sub-tooth of the first defense member is rotatably connected to one side of the first movable rod, and the side wall of the first sub-tooth of the second defense member is rotatably connected to one side of the first movable rod. The second sub-tooth of the first defense member can be meshed and driven with the first sub-tooth of the second defense member. The side wall of the second sub-tooth of the second defense member is rotatably connected to one side of the second connecting block, and the side wall of the first sub-tooth of the third defense member is rotatably connected to one side of the second connecting block. The second sub-tooth of the second defense member can be meshed and driven with the first sub-tooth of the third defense member. The side wall of the second sub-tooth of the third defense member is rotatably connected to one side of the second movable rod.

[0016] The present invention is further configured such that: one end of the first movable rod is provided with a first insertion block, and one end of the second movable rod is provided with a second insertion block. Both the first insertion block and the second insertion block can be cooperatively inserted into the annular groove.

[0017] In summary, the present application includes at least one of the following beneficial technical effects:

[0018] (1) Through the design of the pre-cutting mechanism, the resin between the surface of the stator assembly and the surface of the mandrel is pre-cut horizontally first, and then pre-cut vertically around the surface of the mandrel, so that the resin fixed between the mandrel and the stator assembly is completely separated. Thus, it is avoided that in order to avoid the generation of air bubbles when pouring glue from top to bottom, some potting mechanisms will pour the resin along the surface of the mandrel and slide off, which will cause resin to remain on the mandrel, and the resin will cure simultaneously with the resin on the surface of the stator assembly. Furthermore, when the mandrel is extracted, the resin on the surface of the stator assembly and the mandrel are synchronously pulled out, resulting in the problem of incomplete resin cured on the stator surface, thereby improving the potting quality and further enhancing the potting effect.

[0019] (2) Through the design of the defense mechanism, the surface of the mandrel is fenced, avoiding the problem that resin fragments on the surface will fall into the motor housing at any time during the extraction of the mandrel, resulting in blockage of the holes in the motor housing. Thus, the smoothness of the holes in the motor housing is ensured, and the assembly quality and production reliability of the servo motor are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the potting device for the multi-station servo motor stator assembly of the present invention.

[0021] Figure 2 It is a schematic diagram of the overall structure of the potting mechanism in the present invention.

[0022] Figure 3 It is a schematic diagram of the overall structure of the pre-cutting mechanism in the present invention.

[0023] Figure 4 This is a schematic diagram of the overall structure of the turning table and the through hole in the present invention.

[0024] Figure 5 This is a schematic diagram of the overall structure of the annular slide rail and the electric ring block in the present invention.

[0025] Figure 6 is Figure 5 an enlarged view of part A in

[0026] Figure 7 This is a schematic diagram of the overall structure of the defense mechanism in the present invention.

[0027] Figure 8 This is a schematic diagram of the overall structure of the ear plate, fixed ring and fixed strip in the present invention.

[0028] Figure 9 This is a schematic diagram of the overall structure of the fixed ring and the ring groove in the present invention.

[0029] Figure 10 This is a schematic diagram of the overall structure of the main defense member in the present invention.

[0030] Figure 11 This is a schematic diagram of the overall structure of the secondary defense member in the present invention.

[0031] Figure 12 This is a schematic diagram of the overall structure of the main defense member and the secondary defense member in the present invention.

[0032] Explanation of reference numerals: 1. Potting mechanism; 11. Potting table; 12. Vertical plate; 13. X-axis horizontal electric linear guide rail; 14. Vertical electric linear guide rail; 15. Lifting plate; 16. Potting gun; 17. Y-axis horizontal electric linear guide rail; 18. Carrier plate;

[0033] 2. Pre-cutting mechanism; 21. Underframe; 211. Lifting cylinder; 22. Fixed seat; 23. Turning cylinder; 24. Turning table; 241. Through hole; 25. Annular slide rail; 26. Electric ring block; 261. Linear slide rail; 262. Electric slider; 27. Pre-cutting member; 271. Connecting plate; 272. Telescopic cylinder; 273. Telescopic block; 274. Tensile bar; 275. Rotating block; 276. Pre-cutting knife;

[0034] 3. Defense mechanism; 31. Ear plate; 32. Fixed ring; 321. Ring groove; 33. Fixed bar; 34. Driving motor; 35. Main defense part; 351. First main tooth; 352. Second main tooth; 353. First main board; 36. Sub-defense part; 361. First defense part; 3611. First sub-tooth; 3612. Second sub-tooth; 3613. Second main board; 362. Second defense part; 363. Third defense part; 364. First connection block; 365. First movable rod; 3651. First insertion block; 366. Second connection block; 367. Second movable rod; 3671. Second insertion block. Detailed implementation

[0035] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0036] Please refer to Figures 1 - 12 , the present invention provides the following technical solutions:

[0037] Example 1, refer to Figures 1 - 12 , a potting device for a multi-station servo motor stator assembly, including a potting mechanism 1, pre-cutting mechanisms 2 are symmetrically arranged at both ends of the potting mechanism 1, and defense mechanisms 3 are symmetrically arranged in the radial N direction on the pre-cutting mechanisms 2.

[0038] Among them, the function of the pre-cutting mechanism 2 is to first perform horizontal pre-cutting on the resin between the surface of the stator assembly and the surface of the mandrel, and then perform vertical pre-cutting around the surface of the mandrel in a circumferential direction, so that the resin fixed between the mandrel and the stator assembly is completely separated, thereby avoiding the problem that some potting mechanisms, in order to avoid the generation of air bubbles caused by pouring glue from top to bottom, will let the resin slide down along the surface of the mandrel, resulting in resin remaining on the mandrel, and the resin on the surface of the stator assembly will also be cured simultaneously, and then when the mandrel is extracted, the resin on the surface of the stator assembly and the mandrel will be pulled out synchronously, causing the resin cured on the stator surface to be incomplete, thereby improving the potting quality and further improving the potting effect.

[0039] The main purpose of the defense mechanism 3 is to fence the surface of the mandrel, avoiding the problem that resin fragments on the surface will fall into the motor housing at any time during the extraction of the mandrel, resulting in blockage of the holes in the motor housing, thereby ensuring the smoothness of the holes in the motor housing and improving the assembly quality and production reliability of the servo motor.

[0040] Refer to Figures 1 - 2, specifically, the potting mechanism 1 includes a potting table 11, vertical plates 12 symmetrically arranged in the radial N direction on the top of the potting table 11, an X-axis horizontal electric linear guide rail 13 arranged between the vertical plates 12, vertical electric linear guide rails 14 symmetrically arranged in the radial N direction on the X-axis horizontal electric linear guide rail 13, a lifting plate 15 arranged on the vertical electric linear guide rails 14, and a potting gun 16 arranged on one side of the lifting plate 15; on the top of the potting table 11, Y-axis horizontal electric linear guide rails 17 are also symmetrically arranged in the radial N direction, and a bearing plate 18 is arranged on the Y-axis horizontal electric linear guide rail 17, and the bearing plate 18 is located below the corresponding potting gun 16.

[0041] Among them, before potting, two or more stator assemblies are placed on the corresponding bearing plates 18. Subsequently, on the one hand, the Y-axis horizontal electric linear guide rail 17 is activated to drive the corresponding bearing plate 18 and the stator assembly to slide and move to below the potting gun 16; on the other hand, the corresponding X-axis horizontal electric linear guide rail 13 is also activated to drive the corresponding vertical electric linear guide rail 14, the lifting plate 15 and the potting gun 16 to move and slide to above the corresponding stator assembly; finally, the vertical electric linear guide rail 14 is activated to drive the potting gun 16 to move downward and be located between the stator assembly and the mandrel for potting.

[0042] It should be noted that the lead screw inside the X-axis horizontal electric linear guide rail 13 is a bidirectional lead screw, which can drive the corresponding vertical electric linear guide rails 14 to approach or move away from each other.

[0043] Refer to Figures 3 - 6 , specifically, the pre-cutting mechanism 2 includes a chassis 21, a fixed seat 22 arranged on the top of the chassis 21, a flipping cylinder 23 rotatably connected inside the fixed seat 22, a flipping table 24 rotatably connected to the telescopic end of the flipping cylinder 23, annular slide rails 25 symmetrically arranged in the radial N direction on one side of the flipping table 24, electric ring blocks 26 sliding evenly on the annular slide rails 25, and a pre-cutting part 27 arranged on the side of the electric ring block 26 away from the annular slide rail 25.

[0044] Among them, the flipping cylinder 23 is activated, and its telescopic end pushes the flipping table 24 to rotate, so that the flipping table 24 can be changed from the vertical direction to the horizontal direction. During this process, the corresponding mandrel will pass through the center of the corresponding annular slide rail 25. Subsequently, the electric ring block 26 is activated to drive the corresponding pre-cutting member 27 to perform horizontal pre-cutting on the resin between the surface of the stator assembly and the surface of the mandrel, thus achieving the purpose of preliminary cutting; then the pre-cutting member 27 is activated, and the electric ring block 26 is activated again to perform vertical pre-cutting around the surface of the mandrel in a circular motion, so that the resin fixed between the mandrel and the stator assembly is completely separated, thereby avoiding the problem that some potting mechanisms, in order to avoid the generation of air bubbles caused by pouring glue from top to bottom, will let the resin slide along the surface of the mandrel during pouring, resulting in resin remaining on the mandrel, and the resin will cure simultaneously with the resin on the surface of the stator assembly. As a result, during the process of extracting the mandrel, the resin on the surface of the stator assembly and the mandrel are synchronously pulled out, causing the cured resin on the stator surface to be incomplete, thus improving the potting quality and further enhancing the potting effect.

[0045] It should be noted that in the initial state of the pre-cutting member 27, its pre-cutting end is horizontally distributed for cutting.

[0046] Refer to Figures 7 - 12 , specifically, the defense mechanism 3 includes ear plates 31 uniformly arranged on the side of the flipping table 24 away from the annular slide rail 25, a fixing ring 32 arranged between the ear plates 31, fixing strips 33 arranged on the outer wall of the fixing ring 32, a driving motor 34 arranged at one end of the fixing strip 33 away from the fixing ring 32, main defense members 35 symmetrically arranged in the radial N direction at the output end of the driving motor 34, and auxiliary defense members 36 arranged on one side of the main defense members 35.

[0047] Among them, the driving motor 34 is activated to drive one of the main defense members 35 to rotate, so that the other main defense member 35 can rotate synchronously, and then the two main defense members 35 can be folded and approached to each other. During this process, the two auxiliary defense members 36 will also rotate with the corresponding main defense members 35 and undergo folding deformation, so that the two main defense members 35 and the two auxiliary defense members 36 rotate and contract and fold simultaneously in the circumferential direction; it should be noted that when the two main defense members 35 and the two auxiliary defense members 36 are unfolded and not folded in a plane, the driving motor 34 can be reversely driven, thus achieving the purpose of fencing the surface of the mandrel and avoiding the problem that resin fragments on the surface will fall into the motor housing at any time during the extraction of the mandrel, resulting in blockage of the holes in the motor housing, thereby ensuring the smoothness of the holes in the motor housing and improving the assembly quality and production reliability of the servo motor.

[0048] Refer to Figures 1 - 3, Further, the top of the chassis 21 is U-shaped, the turning platform 24 is located inside the chassis 21, and one end of the turning platform 24 is rotatably connected to the inner wall of the chassis 21; lifting cylinders 211 are symmetrically arranged below the chassis 21, and the telescopic ends of the lifting cylinders 211 are connected to the inner wall of the chassis 21.

[0049] Among them, when the lifting cylinder 211 is activated, its telescopic end can drive the chassis 21 and all the mechanisms located on the chassis 21 to synchronously move up or down, thus achieving the purpose of lifting.

[0050] Refer to Figures 4 - 6 , Further, through holes 241 are symmetrically opened in the radial N direction of the side wall of the turning platform 24, and the inner diameter of the annular slide rail 25 can be concentrically distributed with the corresponding through holes 241; a linear slide rail 261 is further provided on the side wall of the electric ring block 26 away from the annular slide rail 25, an electric slider 262 is slidably arranged on the linear slide rail 261, and one side of the electric slider 262 away from the linear slide rail 261 is connected to the pre-cutting member 27, and the linear slide rail 261 is perpendicularly distributed to the corresponding electric ring block 26.

[0051] Among them, during the process of the turning platform 24 changing from the vertical state to the horizontal state, the corresponding through holes 241 will be aligned with the corresponding stator assemblies.

[0052] By activating the electric slider 262, the corresponding pre-cutting member 27 can be driven to slide along the opening direction of the linear slide rail 261, so that the three pre-cutting members 27 can approach or move away from the core shaft relative to each other.

[0053] Refer to Figures 4 - 6 , Even further, the pre-cutting member 27 includes a connecting plate 271, a telescopic cylinder 272 arranged on one side of the connecting plate 271, a telescopic block 273 arranged at the telescopic end of the telescopic cylinder 272, a stretching bar 274 rotatably connected to the side of the telescopic block 273 away from the telescopic cylinder 272, a rotating block 275 rotatably connected to one end of the stretching bar 274 away from the telescopic block 273, and a pre-cutting knife 276 arranged at one end of the rotating block 275 away from the stretching bar 274; the side wall of the connecting plate 271 away from the telescopic cylinder 272 is connected to one side of the electric slider 262 away from the linear slide rail 261, the connecting plate 271 is arranged in the same direction as the corresponding linear slide rail 261, the rotating block 275 is L-shaped, and the middle part of the side wall of the rotating block 275 is rotatably connected to the side of the connecting plate 271 away from the electric slider 262.

[0054] Among them, when horizontal pre-cutting of the resin between the stator assembly surface and the mandrel surface is required, the telescopic cylinder 272 is activated, and its telescopic end pushes the telescopic block 273 to extend, so that the telescopic block 273 pushes the stretching bar 274 and the rotating block 275, thereby causing the rotating block 275 to rotate, changing from a vertical state to a horizontal state. At this time, the pre-cutting knives 276 are also horizontally distributed. Subsequently, the electric ring block 26 is activated to drive the corresponding pre-cutting knives 276 to perform horizontal pre-cutting on the resin between the stator assembly surface and the mandrel surface, thus achieving the purpose of preliminary cutting.

[0055] When vertical pre-cutting around the mandrel surface in a circular motion is required, the telescopic end of the telescopic cylinder 272 is retracted. At this time, the pre-cutting knives 276 are vertically distributed. Subsequently, the electric ring block 26 is activated to drive the corresponding pre-cutting knives 276 to perform vertical pre-cutting around the mandrel surface in a circular motion, completely separating the resin fixed between the mandrel and the stator assembly. This avoids the situation where some potting mechanisms, in order to avoid the generation of air bubbles during top-down potting, let the resin slide down along the surface of the mandrel, which would result in resin remaining on the mandrel and the resin on the mandrel and the stator assembly surface curing simultaneously. Consequently, during the process of extracting the mandrel, the resin on the stator assembly surface and the mandrel would be pulled out synchronously, causing the cured resin on the stator surface to be incomplete, thereby improving the potting quality and further enhancing the potting effect.

[0056] It should be noted that during the process of angle adjustment of the pre-cutting member 27, the lifting cylinder 211 is also activated to drive the chassis 21 and all the mechanisms located on the chassis 21 to move up or down synchronously, thereby avoiding the situation where the pre-cutting member 27 scratches the stator assembly and the mandrel during rotation and ensuring the smooth progress of the adjustment.

[0057] Embodiment 2: Through the technical solution of Embodiment 1, although the problem in the prior art that some potting mechanisms, in order to avoid the generation of air bubbles during top-down potting, let the resin slide down along the surface of the mandrel, resulting in resin remaining on the mandrel and the resin on the mandrel and the stator assembly surface curing simultaneously, and during the process of extracting the mandrel, the resin on the stator assembly surface and the mandrel are pulled out synchronously, causing the cured resin on the stator surface to be incomplete, has been solved, there is still a problem that has not been solved: during the process of extracting the mandrel, some cured resin fragments still fall into the motor housing, causing blockage of the holes in the motor housing. For this reason, the following solution is proposed:

[0058] Refer to Figures 7 - 12 , further, both the ear plate 31 and the fixing bar 33 are L-shaped. One end of the ear plate 31 away from the fixing ring 32 is connected to the side wall of the flipping table 24 away from the annular slide rail 25, and a ring groove 321 is provided on one side of the fixing ring 32 away from the ear plate 31.

[0059] The main defense members 35 are distributed oppositely. The main defense member 35 includes a first main tooth 351, a second main tooth 352 disposed on one side of the first main tooth 351, and a first main board 353 disposed between the first main tooth 351 and the second main tooth 352; the first main board 353 is fan-shaped, and the output end of the driving motor 34 penetrates through the side wall of the fixing bar 33 and is connected to one of the first main teeth 351, and one of the first main teeth 351 can be in meshing transmission with the other first main tooth 351, and the side wall of the other first main tooth 351 is rotatably connected to the side wall of the fixing bar 33.

[0060] After the resin between the mandrel and the stator assembly is cut by the pre-cut mechanism 2, at this time, the lifting cylinder 211 is started to drive the chassis 21 and all the mechanisms located on the chassis 21 to move up or down synchronously. At this time, the turning platform 24 moves down synchronously, so that the corresponding stator assembly enters the corresponding defense mechanism 3 through the corresponding through hole 241. At this time, the defense mechanism is started again to fence the surface of the mandrel.

[0061] It should be noted that the mandrel will be pulled out a certain distance first, and then enter the defense mechanism 3. At this time, the defense mechanism 3 is located below the resin fragments on the surface of the mandrel.

[0062] Wherein, the driving motor 34 is started to drive one of the first main teeth 351 to rotate, so that one of the first main boards 353 and the second main tooth 352 can be turned over synchronously. Since one of the first main teeth 351 is in meshing with the other first main tooth 351, the other first main tooth 351 can also rotate synchronously and drive the other first main board 353 and the second main tooth 352 to turn over synchronously, so that the two first main boards 353 are folded and close to each other, thus achieving the purpose of folding the two main defense members 35 with each other.

[0063] Refer to Figures 7 - 12 Furthermore, the secondary defense member 36 includes a first defense member 361, a second defense member 362 disposed on one side of the first defense member 361, and a third defense member 363 disposed on the side of the second defense member 362 away from the first defense member 361; the structural sizes of the first defense member 361, the second defense member 362 and the third defense member 363 are equal and are distributed in sequence. A first connecting block 364 is disposed on one side of the first defense member 361. A first movable rod 365 is disposed between the first defense member 361 and the second defense member 362. A second connecting block 366 is disposed between the second defense member 362 and the third defense member 363. A second movable rod 367 is disposed on the side of the third defense member 363 away from the second defense member 362.

[0064] Refer to Figures 7 - 12, further, the first defense member 361 includes a first sub-tooth 3611, a second sub-tooth 3612 disposed on one side of the first sub-tooth 3611, and a second main board 3613 disposed between the first sub-tooth 3611 and the second sub-tooth 3612; the side wall of the first sub-tooth 3611 of the first defense member 361 is rotatably connected to one side of the first connection block 364, and correspondingly, the side wall of the second main tooth 352 is rotatably connected to one side of the first connection block 364. The first sub-tooth 3611 of the first defense member 361 can be meshed and driven with the corresponding second main tooth 352.

[0065] Refer to Figures 7 - 12 , still further, both the first movable rod 365 and the second movable rod 367 are L-shaped. The side wall of the second sub-tooth 3612 of the first defense member 361 is rotatably connected to one side of the first movable rod 365, and the side wall of the first sub-tooth 3611 of the second defense member 362 is rotatably connected to one side of the first movable rod 365. The second sub-tooth 3612 of the first defense member 361 can be meshed and driven with the first sub-tooth 3611 of the second defense member 362; the side wall of the second sub-tooth 3612 of the second defense member 362 is rotatably connected to one side of the second connection block 366, and the side wall of the first sub-tooth 3611 of the third defense member 363 is rotatably connected to one side of the second connection block 366. The second sub-tooth 3612 of the second defense member 362 can be meshed and driven with the first sub-tooth 3611 of the third defense member 363; the side wall of the second sub-tooth 3612 of the third defense member 363 is rotatably connected to one side of the second movable rod 367.

[0066] Refer to Figure 11 , further, a first insertion block 3651 is provided at one end of the first movable rod 365, and a second insertion block 3671 is provided at one end of the second movable rod 367. Both the first insertion block 3651 and the second insertion block 3671 can be cooperatively inserted into the annular groove 321.

[0067] Among them, during the process of the two main defense components 35 folding and approaching each other, the corresponding main defense component 35 will drive the first secondary tooth 3611 of the first defense component 361 to rotate, so that the second secondary tooth 3612 and the second main board 3613 of the first defense component 361 are turned synchronously. Furthermore, the first secondary tooth 3611 of the second defense component 362 can be rotated to drive the second secondary tooth 3612 and the second main board 3613 of the second defense component 362 to turn synchronously. Moreover, the first secondary tooth 3611 of the third defense component 363 can be rotated to drive the second secondary tooth 3612 and the second main board 3613 of the third defense component 363 to turn synchronously. Therefore, the two secondary defense components 36 will also rotate with the corresponding main defense component 35 and undergo folding deformation, causing the two main defense components 35 and the two secondary defense components 36 to rotate and contract and fold simultaneously in the circumferential direction. It should be noted that when the two main defense components 35 and the two secondary defense components 36 are unfolded and not folded in a plane, the drive motor 34 can be reversely driven, thus achieving the purpose of fencing the surface of the mandrel and avoiding the problem that resin fragments on the surface will fall into the motor housing at any time during the extraction process of the mandrel, resulting in blockage of the holes in the motor housing, thereby ensuring the smoothness of the holes in the motor housing and improving the assembly quality and production reliability of the servo motor.

[0068] During this process, the corresponding first movable rod 365 will slide along the annular groove 321 through the first insertion block 3651, and the corresponding second movable rod 367 will slide along the annular groove 321 through the second insertion block 3671, thus achieving the purpose of guiding.

[0069] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Claims

1. A potting device for a multi-station servo motor stator assembly, characterized in that: It includes a potting mechanism (1), with pre-cutting mechanisms (2) symmetrically arranged at both ends of the potting mechanism (1), and defense mechanisms (3) symmetrically arranged in the radial direction on the pre-cutting mechanisms (2). The pre-cutting mechanism (2) includes a base frame (21), a fixed seat (22) arranged at the top of the base frame (21), a turning cylinder (23) rotatably connected inside the fixed seat (22), a turning table (24) rotatably connected to the telescopic end of the turning cylinder (23), an annular slide rail (25) symmetrically arranged in the radial direction on one side of the turning table (24), an electric ring block (26) evenly sliding on the annular slide rail (25), and a pre-cutting part (27) arranged on the side of the electric ring block (26) away from the annular slide rail (25). The defense mechanism (3) includes ear plates (31) evenly arranged on the side of the turning table (24) away from the annular slide rail (25), a fixed ring (32) arranged between the ear plates (31), a fixed strip (33) arranged on the outer wall of the fixed ring (32), a driving motor (34) arranged at one end of the fixed strip (33) away from the fixed ring (32), main defense parts (35) symmetrically arranged in the radial direction at the output end of the driving motor (34), and auxiliary defense parts (36) arranged on one side of the main defense parts (35). Through holes (241) are symmetrically opened in the radial direction on the side wall of the turning table (24), and the inner diameter of the annular slide rail (25) can be concentrically distributed with the corresponding through holes (241). A linear slide rail (261) is further arranged on the side wall of the electric ring block (26) away from the annular slide rail (25), an electric slider (262) is slidably arranged on the linear slide rail (261), one side of the electric slider (262) away from the linear slide rail (261) is connected to the pre-cutting part (27), and the linear slide rail (261) is perpendicularly distributed with the corresponding electric ring block (26). The pre-cutting part (27) includes a connecting plate (271), a telescopic cylinder (272) arranged on one side of the connecting plate (271), a telescopic block (273) arranged at the telescopic end of the telescopic cylinder (272), a stretching strip (274) rotatably connected to the side of the telescopic block (273) away from the telescopic cylinder (272), a rotating block (275) rotatably connected to one end of the stretching strip (274) away from the telescopic block (273), and a pre-cutting knife (276) arranged at one end of the rotating block (275) away from the stretching strip (274). The side wall of the connecting plate (271) away from the telescopic cylinder (272) is connected to the side of the electric slider (262) away from the linear slide rail (261), the connecting plate (271) is arranged in the same direction as the corresponding linear slide rail (261), the rotating block (275) is L-shaped, and the middle of the side wall of the rotating block (275) is rotatably connected to the side of the connecting plate (271) away from the electric slider (262).

2. The potting device for the multi-station servo motor stator assembly according to claim 1, characterized in that: The potting mechanism (1) includes a potting table (11), vertical plates (12) symmetrically arranged in the radial direction on the top of the potting table (11), an X-axis horizontal electric linear guide (13) arranged between the vertical plates (12), vertical electric linear guides (14) symmetrically arranged in the radial direction on the X-axis horizontal electric linear guide (13), a lifting plate (15) arranged on the vertical electric linear guide (14), and a potting gun (16) arranged on one side of the lifting plate (15); On the top of the potting table (11) in the radial direction, a Y-axis horizontal electric linear guide (17) is also symmetrically arranged. A bearing plate (18) is arranged on the Y-axis horizontal electric linear guide (17), and the bearing plate (18) is located below the corresponding potting gun (16).

3. The potting device for the multi-station servo motor stator assembly according to claim 2, wherein: The top of the chassis (21) is U-shaped. The flipping table (24) is located inside the chassis (21), and one end of the flipping table (24) is rotatably connected to the inner wall of the chassis (21); Symmetrically arranged below the chassis (21) are lifting cylinders (211), and the telescopic ends of the lifting cylinders (211) are connected to the inner wall of the chassis (21).

4. The potting device for the multi-station servo motor stator assembly according to claim 1, characterized in that: Both the ear plate (31) and the fixing strip (33) are L-shaped. One end of the ear plate (31) far from the fixing ring (32) is connected to the side wall of the flipping table (24) far from the annular slide rail (25). A ring groove (321) is opened on one side of the fixing ring (32) far from the ear plate (31); The main defense members (35) are distributed oppositely. The main defense member (35) includes a first main tooth (351), a second main tooth (352) arranged on one side of the first main tooth (351), and a first main board (353) arranged between the first main tooth (351) and the second main tooth (352); The first main board (353) is fan-shaped. The output end of the driving motor (34) penetrates the side wall of the fixing strip (33) and is connected to one of the first main teeth (351). One of the first main teeth (351) can mesh and drive with another first main tooth (351), and the side wall of the other first main tooth (351) is rotatably connected to the side wall of the fixing strip (33).

5. The potting device for the multi-station servo motor stator assembly according to claim 4, characterized in that: The secondary defense member (36) includes a first defense member (361), a second defense member (362) arranged on one side of the first defense member (361), and a third defense member (363) arranged on the side of the second defense member (362) far from the first defense member (361); The first defense member (361), the second defense member (362), and the third defense member (363) have the same structural size and are arranged in sequence. A first connection block (364) is arranged on one side of the first defense member (361). A first movable rod (365) is arranged between the first defense member (361) and the second defense member (362). A second connection block (366) is arranged between the second defense member (362) and the third defense member (363). A second movable rod (367) is arranged on the side of the third defense member (363) far from the second defense member (362).

6. The potting device for the multi-station servo motor stator assembly according to claim 5, characterized in that: The first defense member (361) includes a first secondary tooth (3611), a second secondary tooth (3612) disposed on one side of the first secondary tooth (3611), and a second main board (3613) disposed between the first secondary tooth (3611) and the second secondary tooth (3612); The side wall of the first secondary tooth (3611) of the first defense member (361) is rotatably connected to one side of the first connecting block (364), and the side wall of the corresponding second main tooth (352) is rotatably connected to one side of the first connecting block (364). The first secondary tooth (3611) of the first defense member (361) can be in meshing transmission with the corresponding second main tooth (352).

7. The potting device for the multi-station servo motor stator assembly according to claim 6, characterized in that: Both the first movable rod (365) and the second movable rod (367) are L-shaped. The side wall of the second secondary tooth (3612) of the first defense member (361) is rotatably connected to one side of the first movable rod (365), and the side wall of the first secondary tooth (3611) of the second defense member (362) is rotatably connected to one side of the first movable rod (365). The second secondary tooth (3612) of the first defense member (361) can be in meshing transmission with the first secondary tooth (3611) of the second defense member (362); The side wall of the second secondary tooth (3612) of the second defense member (362) is rotatably connected to one side of the second connecting block (366), and the side wall of the first secondary tooth (3611) of the third defense member (363) is rotatably connected to one side of the second connecting block (366). The second secondary tooth (3612) of the second defense member (362) can be in meshing transmission with the first secondary tooth (3611) of the third defense member (363); The side wall of the second secondary tooth (3612) of the third defense member (363) is rotatably connected to one side of the second movable rod (367).

8. The potting device for the multi-station servo motor stator assembly according to claim 5, characterized in that: One end of the first movable rod (365) is provided with a first insertion block (3651), and one end of the second movable rod (367) is provided with a second insertion block (3671). Both the first insertion block (3651) and the second insertion block (3671) can be cooperatively inserted into the annular groove (321).

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