Outer rotor winding device of brushless DC motor and feeding method thereof

Abstract

The invention discloses an outer rotor winding device of a brushless DC motor and a feeding method thereof, comprising a frame, a winding device, a rotor feeding device arranged at the front end of the frame, and a copper wire feeding device arranged at the rear end of the frame; the winding device comprises a main shaft, a wire outlet tube at the front end of the main shaft, and a main channel inside the main shaft, the wire outlet tube is parallel to the main shaft, and the copper wire enters the wire outlet tube from the main channel in a tensioned posture; the rotor feeding device comprises a first X-axis module, a positioning column and a clamping module, the first X-axis module moves the winding column between a feeding station and a winding station; the feeding mechanism also comprises a lifting mechanism, the lifting mechanism comprises a bottom plate, a screw lifting module and a lifting motor, and a barrel and a lifting block located on one side of the screw lifting module, and a discharge port is arranged at the top of the barrel; a loading device for placing rotors one by one into the barrel is provided at the loading station, and the barrel is arranged in a horizontal posture positioning in the loading device, and receives the arranged rotors.

Description

Technical Field

[0001] The invention relates to the technical field of winding machine equipment, and in particular to an outer rotor winding device for a brushless DC motor and a feeding method thereof. Background Art

[0002] At present, with the continuous development of motor manufacturing technology, new winding machine technologies have emerged. These new winding machines use advanced control systems and precise mechanical structures, which can achieve high-precision winding operations and have higher winding efficiency. At the same time, some winding machines are also equipped with automatic detection and adjustment functions, which can detect the quality and accuracy of the winding in real time during the winding process and make automatic adjustments, thereby greatly improving the manufacturing quality of the motor.

[0003] In addition, with the continuous emergence of new materials and new processes, the winding technology of brushless DC motors is also constantly innovating. For example, some new winding materials have better conductivity and mechanical properties, which can further improve the efficiency and reliability of the motor. At the same time, some new winding processes can also achieve more complex winding structures, thereby meeting the needs of motors in different application scenarios.

[0004] During the winding process, the rotor to be wound needs to be loaded. In the prior art, the rotor is usually loaded manually through a movable column on the winding mechanism. During loading, the column is moved out of the winding mechanism by a movable module and is ready to be manually inserted into the rotor. This method requires workers to be in front of the machine at all times, and the manual loading method reduces work efficiency. Summary of the invention

[0005] In view of the deficiencies in the prior art, an object of the present invention is to provide an outer rotor winding device for a brushless DC motor.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: an outer rotor winding device for a brushless DC motor, comprising:

[0007] A frame, a winding device arranged in the middle of the frame, a rotor feeding device arranged at the front end of the frame, and a copper wire feeding device arranged at the rear end of the frame;

[0008] The winding device comprises a main shaft rotatably arranged in the middle of the frame, a wire outlet tube radially spaced from the main shaft is arranged at the front end of the main shaft, a main channel connecting the wire outlet tube and the copper wire feeding device is arranged inside the main shaft, the wire outlet tube is parallel to the main shaft, and the copper wire enters the wire outlet tube from the main channel in a tensioned posture;

[0009] The rotor feeding device comprises a first X-axis module arranged at the bottom of the frame, a positioning column arranged on the first X-axis module, and a clamping module arranged on one side of the positioning column, wherein the positioning column is used to position the rotor in the axial direction and drive the rotor to rotate; the first X-axis module moves the winding column between the feeding station and the winding station;

[0010] It also includes a lifting mechanism, which includes a bottom plate, a screw lifting module arranged on the bottom plate, a lifting motor for providing power, and a barrel located on one side of the screw lifting module, a lifting block placed in the barrel is provided on the nut end of the screw lifting module, a plurality of rotors are vertically stacked in the barrel, a discharge port is provided on the top of the barrel, the lifting block supports the rotor at the bottom of the barrel and lifts the rotor at the top to the outside of the shaft end of the barrel, so that the clamping module can clamp the rotor and position the rotor to the positioning column;

[0011] The loading station is provided with a loading device for placing the rotors one by one into the barrel, and the barrel is arranged in a horizontal position in the loading device to receive the arranged rotors.

[0012] Furthermore, the top of the barrel is open to allow the rotor to enter or leave, and the bottom of the barrel has a baffle plate that blocks the bottom of the rotor, and a material column that extends upward from the baffle plate and is used for the rotor to be sleeved thereon, a accommodating space corresponding to the rotor is separated from the material column and the barrel, and an avoidance opening is provided on the baffle plate and the outer wall of the barrel for the lifting block to be placed in and move axially in the barrel.

[0013] Furthermore, the avoidance port is annularly arranged at a first opening on the outer contour side of the rotor, and a second opening connected to the first opening, the second opening extends to the outer wall of the barrel and forms a vertical lifting channel on the outer wall, and the avoidance port matches the contour of the lifting block.

[0014] Furthermore, the lifting block has a connecting portion connected to the second opening from the outer side of the barrel, and a lifting portion corresponding to the first opening, and the connecting portion is connected to the nut end of the screw lifting module.

[0015] Furthermore, the rotor is provided with a protective cover in the charging device and the lifting mechanism, and a stripping hook is provided at the top of the lifting channel corresponding to the radial outer side of the rotor, and the stripping hook part extends into the lifting channel and corresponds to the gap between two adjacent windings of the rotor, and the stripping hook is movably arranged to remove the protective cover.

[0016] Further, the charging device includes a rotor silo and a rotor track arranged at the lower part of the rotor trough;

[0017] The rotor track is provided with a translation module, and a rotor support plate and a side positioning arm arranged on the translation module. The rotor support plate is provided with an arc-shaped groove for supporting the bottom of the rotor. The side positioning arm is constrained on both sides when the rotor is placed and prevents the rotor from falling. The rotor silo is provided with a rotor unloading port, and the rotor support plate receives the rotors one by one through the translation module.

[0018] Furthermore, the loading device also includes a barrel silo and a barrel track arranged at the lower part of the barrel silo. The barrel track is arranged relative to the rotor track. The barrel track is also provided with an adjustment module for driving the barrel to rotate so that the lifting channel on the barrel is arranged relative to the rotor support plate. The barrel and the rotor support plate move relative to each other to place the rotor in the barrel.

[0019] Furthermore, a manipulator is provided between the loading station and the charging station, and a clamping arm is provided on the manipulator. The clamping arm clamps both sides of the barrel and switches the barrel between a horizontal position and a vertical position.

[0020] Furthermore, the screw lifting module includes a shell, and a screw body, a nut end and a gear train that are accommodated and moved inside the shell. The nut end is integrally arranged with the lifting block, and a manual operating part is arranged at the end away from the lifting block. The shell is provided with an emergency groove for the manual operating part to move vertically and extend out of the shell. The gear train includes a spur gear and a worm gear arranged at the bottom of the screw body. The worm gear is a double gear, including a spur tooth portion meshing with the spur gear, and a helical tooth portion meshing with the worm. The worm is connected to a drive motor, and a pressing portion extending from the shell is provided on the end face of the spur tooth portion. The worm wheel is vertically abutted with a spring and is movably arranged. The present invention also provides a feeding method for an outer rotor winding device of a brushless DC motor, comprising the following steps:

[0021] S1, the rotor and the empty barrel are loaded, the translation module moves and aligns the front end of the rotor support plate to the outlet of the rotor silo, the side positioning arm partially opens and accommodates the rotor into the arc-shaped slot, and then the translation module moves equidistantly until the rotor support plate is fully loaded with the rotor;

[0022] The barrel silo outputs the barrel to the barrel track. The barrel rotates on the barrel track under the action of the positioning module until the lifting channel on the barrel is aligned with the rotor support plate. Then the translation module pushes the rotor into the barrel. At this time, the rotor support plate is inserted into the lifting channel, and the side positioning arm is partially opened to allow the barrel to be placed. Then the translation module continues to push the barrel to the bottom of the robot.

[0023] S2, loading the fully loaded barrel. The manipulator grabs both ends of the fully loaded barrel, converts the barrel to a vertical position, and places the barrel at the loading station. At this time, the lifting block enters the avoidance port and the lifting channel;

[0024] S3, the rotor is transferred, the screw lifting module is actuated, and the lifting block lifts the bottom rotor and pushes the top rotor out from the top of the barrel. At this time, the stripping hook abuts against the protective cover. As the lifting block continues to lift, the protective cover is restrained by the stripping hook and at least partially detached from the rotor. Then the clamping module moves to the top of the barrel, grabs the rotor and positions it on the positioning column, ready for winding.

[0025] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0026] In the loading station of the present invention, the rotors are axially summarized and stacked in the barrel, and the lifting block in the barrel is used to lift and feed the materials vertically. The clamping module works and grabs the rotor sent out of the top of the barrel, and the rotor is plugged into the positioning column to complete the loading of the rotor from the loading station to the winding station. The setting of the barrel effectively reduces the labor intensity of workers manually loading materials one by one, and improves work efficiency.

[0027] The present invention also provides an automatic loading and feeding device for the barrel. The barrel receives the rotor in a horizontal position, thereby preventing the rotor from falling to the bottom of the barrel and being damaged. The rotor is loaded and fed in the form of a protective cover, effectively reducing the wear on the rotor during transportation and possible dust in the winding process. At the same time, the rotor is carried into the barrel by the rotor support plate, and the rotor will not produce sliding wear during the loading process. Multiple rotors can be loaded in the barrel at one time, and finally the barrel is grabbed by a robot and the posture is adjusted to the feeding station. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall layout of the present invention;

[0029] Figure 2 is a cross-sectional view of a winding device of the present invention;

[0030] Figure 3 It is a structural schematic diagram of the clamping module of the present invention;

[0031] Figure 4 It is a structural schematic diagram of the material lifting mechanism of the present invention;

[0032] Figure 5 It is a cross-sectional view of the barrel and the material lifting mechanism of the present invention;

[0033] Figure 6 It is a partial exploded view of the barrel and the material lifting mechanism of the present invention;

[0034] Figure 7 It is a schematic diagram of the layout of the charging device of the present invention;

[0035] Figure 8It is a schematic diagram of the structure of the rotor track and the barrel track of the present invention;

[0036] Fig. 9 It is a schematic diagram of the state when the side positioning arm of the present invention positions the rotor;

[0037] Fig.10 It is a schematic diagram of the state when the side positioning arm of the present invention positions the barrel;

[0038] Fig.11 It is a schematic diagram of the coordination of the positioning hook of the present invention;

[0039] Fig.12 It is a structural schematic diagram of the manipulator of the present invention;

[0040] Fig.13 It is a structural schematic diagram of the position adjustment module in the present invention;

[0041] In the figure:

[0042] 1. Frame; 2. Winding device; 2.1. Spindle; 2.2. Outlet tube; 2.3. Main channel;

[0043] 3. Rotor feeding device; 3.1. First X-axis module; 3.2. Positioning column; 3.3. Clamping module; 3.4. Vertical module; 3.5. Transverse module; 3.51. First linear drive module; 3.52. Second linear drive module;

[0044] 4. Material lifting mechanism; 4.1. Bottom plate; 4.2. Screw lifting module; 4.21. Screw body; 4.22. Spur gear; 4.23. Worm gear; 4.231. Spur gear; 4.232. Helical gear; 4.24. Worm; 4.25. Pressing part; 4.26. Spring;

[0045] 4.3, lifting motor; 4.4, lifting block; 4.41, lifting part; 4.42, connecting part; 4.43, manual operation part;

[0046] 5. Barrel; 5.1. Discharge port; 5.2. Baffle plate; 5.3. Material column; 5.4. Avoidance port; 5.41. First opening; 5.42. Second opening; 5.43. Connecting rib;

[0047] 6. Loading device; 6.1. Rotor track; 6.2. Translation module; 6.3. Side positioning arm; 6.4. Rotor support plate;

[0048] 6.5, barrel track; 6.6, adjustment module; 6.7, notch;

[0049] 7. Unhooking hook; 8. Manipulator; 8.1. Clamping arm; 8.2. Baffle; 9. Housing; 9.1. Emergency channel; 10. Rotor silo; 11. Cylinder silo; 12. Rotor; 13. Protective cover; 14. Roller; DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] It should be understood that although the terms upper, middle, lower, top, end, etc. appear in this article to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish elements from each other for easy understanding, and are not used to define any direction or order limitation.

[0052] like Figure 1-13 As shown, a winding device for an outer rotor 12 of a brushless DC motor comprises a frame 1, a winding device 2 arranged in the middle of the frame 1, a rotor 12 feeding device 3 arranged at the front end of the frame 1, and a copper wire feeding device arranged at the rear end of the frame 1;

[0053] The winding device 2 comprises a main shaft 2.1 rotatably arranged in the middle of the frame 1, the main shaft 2.1 is passed through the frame 1 and bearings are arranged at both ends of the frame 1, a wire outlet pipe 2.2 is arranged at the front end of the main shaft 2.1 and is radially spaced from the main shaft 2.1, a main channel 2.3 connecting the wire outlet pipe 2.2 and the copper wire feeding device is arranged inside the main shaft 2.1, the wire outlet pipe 2.2 is parallel to the main shaft 2.1, and at least two wire outlet guide wheels are arranged between the main shaft 2.1 and the wire outlet pipe 2.2, and the wire outlet guide wheels guide the copper wire to enter the wire outlet pipe 2.2 from the main channel 2.3 in a tensioned posture;

[0054] The rotor 12 feeding device 3 comprises a first X-axis module 3.1 arranged at the bottom of the frame 1, a positioning column 3.2 arranged on the first X-axis module 3.1, and a clamping module 3.3 arranged on both sides of the positioning column 3.2, the positioning column 3.2 is used to position the rotor 12 in the axial direction and drive the rotor 12 to rotate; the first X-axis module 3.1 moves the winding column between the feeding station and the winding station;

[0055] The positioning column 3.2 is configured to be axially connected to the rotor 12 and drive the rotor 12 to adjust its angle to adapt to the winding work on different windings.

[0056] Among them, the front end of the wire outlet tube 2.2 constitutes a winding station, and a clamping plate for clamping the end of the copper wire is also provided above the winding station. The copper wire loading device specifically includes a wire drum and a tensioner. The copper wire on the wire drum enters the tensioner and enters the main channel 2.3 in the main shaft 2.1 under the control of the tensioner. It is then output from the wire outlet tube 2.2 and clamped by the clamping plate. The copper wire on the wire drum is pulled by the rotation of the main shaft 2.1 and the wire outlet tube 2.2, and the copper wire between the wire outlet tube 2.2 and the clamping plate is wound onto the rotor 12 winding. The specific winding steps of the copper wire on the rotor 12 winding have been fully disclosed in the prior art and will not be elaborated here.

[0057] After winding is completed, the finished rotor 12 needs to be unloaded, or before winding, the wound rotor 12 needs to be placed on a loading station, and the first X-axis module 3.1 drives the positioning column 3.2 to move.

[0058] It also includes a lifting mechanism 4, which includes a bottom plate 4.1, a lifting motor 4.3 arranged on the bottom plate 4.1, a gear train connected to the lifting motor 4.3, and a screw lifting module 4.2 vertically arranged at the end of the gear train, and a barrel 5 located on one side of the screw lifting module 4.2, a lifting block 4.4 placed in the barrel 5 is provided on the nut end of the screw lifting module 4.2, and a plurality of rotors 12 are vertically stacked in the barrel 5, and a discharge port 5.1 is provided at the top of the barrel 5, and the lifting block 4.4 supports the rotor 12 at the bottom of the barrel 5 and lifts the rotor 12 at the top to the outside of the shaft end of the barrel 5, so that the clamping module 3.3 can clamp the rotor 12 and position the rotor 12 to the positioning column 3.2;

[0059] As a further implementation method for loading the rotor 12, the first X-axis module 3.1 drives the positioning column 3.2 to move toward the barrel 5 fixed on the base plate 4.1 until it is on one side of the barrel 5, wherein the clamping module 3.3 is also connected to the transverse module 3.5 and the vertical module 3.4, and the clamping module 3.3 specifically refers to two clamping arms driven by a finger cylinder, thereby performing the action of grasping and releasing, and the transverse module 3.5 and the vertical module 3.4 further drive the clamping arms to move toward the rotor 12 ejected from the top of the barrel 5, and grasp the rotor 12 and then return, and finally the vertical module 3.4 further moves to fit the rotor 12 on the positioning column 3.2, and then the first X-axis module 3.1 returns to the position where the positioning column 3.2 is aligned with the winding station.

[0060] The transverse movement module 3.5 specifically includes a first linear driving module 3.51 and a second linear driving module 3.52. The first linear driving module 3.51 drives the clamping module 3.3 to move between the transverse movement positions between the positioning column 3.2 and the barrel 5. The second linear driving module 3.52 drives the clamping module 3.3 to move in the direction of approaching and moving away from the positioning column 3.2.

[0061] Optionally, during the winding process, the clamping module 3.3 is driven by the transverse movement module 3.5 to be away from the winding station, so as to avoid interference with the winding work.

[0062] The present invention also provides a lifting mechanism 4, through the barrel 5 in the lifting mechanism 4, multiple rotors 12 can be stacked together, and through the action of the lifting motor 4.3, gear and screw lifting module 4.2, the lifting block 4.4 at the bottom of the barrel 5 is driven to lift, so that the top rotor 12 is ejected from the discharge port 5.1 at the top of the barrel 5 for the clamping module 3.3 to grab, so that on the premise that the number of rotors 12 can be accommodated in the barrel 5, the labor intensity of manual loading of the rotor 12 can be reduced. When the current barrel 5 is ready to load, another barrel 5 can be loaded, thereby improving the loading efficiency. Of course, multiple fully loaded barrels 5 can also be reserved in advance, so that the barrel 5 can be used as a packaging component for the rotor 12. At the same time, it is convenient for the loading process of the rotor 12 before the winding machine is wound, and it also facilitates the transportation of the rotor 12.

[0063] Compared with the prior art method of sleeve-mounting multiple rotors 12 on a material rod for discharging, the height of the tooling is effectively reduced. Since multiple rotors 12 are transported and packaged in the barrel 5 as a unit, the loading efficiency of the rotors 12 is not affected.

[0064] like Figures 4 to 6 As shown, in this embodiment, as a further explanation of the barrel 5, the top of the barrel 5 is open for the rotor 12 to enter or leave, and the bottom of the barrel 5 is provided with a baffle plate 5.2 blocking the bottom of the rotor 12, and a material column 5.3 extending upward from the baffle plate 5.2 and used for the rotor 12 to be sleeved thereon, and a accommodating space corresponding to the rotor 12 is spaced apart from the material column 5.3 and the barrel 5. For a fully loaded barrel 5, the rotor 12 is positioned on the material column 5.3, and the bottom is prevented from escaping by the baffle plate 5.2. For an unloaded barrel 5, the loading and insertion of the rotor 12 is guided by the material column 5.3, thereby improving the stability of the loading and unloading of the rotor 12.

[0065] Among them, the baffle plate 5.2 and the outer wall of the barrel 5 are provided with an avoidance opening 5.4 for the lifting block 4.4 to be placed and axially move in the barrel 5. The avoidance opening 5.4 enables the lifting block 4.4 to move upward from the bottom of the barrel 5, thereby pushing the rotor 12 in the barrel 5 upward until a rotor 12 leaves the barrel 5. Of course, the rotor 12 can be partially extended out of the top of the barrel 5 to prevent the rotor 12 from falling. The extended part is grasped by the clamping module 3.3, and the rotor 12 is completely removed from the barrel 5 in combination with the vertical module 3.4.

[0066] Specifically, the avoidance opening 5.4 is annularly arranged with a first opening 5.41 on the outer contour side of the rotor 12, and a second opening 5.42 connected to the first opening 5.41. The second opening 5.42 extends to the outer wall of the barrel 5 and forms a vertical lifting channel on the outer wall. The avoidance opening 5.4 matches the contour of the lifting block 4.4.

[0067] Specifically, the lifting block 4.4 has a connecting portion 4.42 connected to the second opening 5.42 from the outside of the barrel 5, and a lifting portion 4.41 corresponding to the first opening 5.41. The connecting portion 4.42 is connected to the nut end of the screw lifting module 4.2. The lifting portion 4.41 matches the first opening 5.41 and is specifically arranged in a ring shape, thereby effectively improving the supporting effect and contact area on the bottom of the rotor 12. The connecting portion 4.42 matches the notch of the second opening 5.42 and moves along the lifting channel under the action of the screw lifting module 4.2. The contour of the lifting block can be smaller than the first opening 5.41 and the second opening 5.42, so that the barrel 5 can accurately cooperate with the lifting block 4.4. The lifting portion 4.41 is hollow in the middle, and the connecting portion 4.42 matching the second opening 5.42 plays a guiding role in the vertical movement of the lifting block 4.4, thereby improving the stability of loading.

[0068] In order to allow the lifting block 4.4 to be inserted upward from the bottom of the barrel 5, a lower connecting rib 5.43 is formed on the side of the bottom of the barrel 5 away from the second opening 5.42, thereby forming an incompletely closed first opening 5.41. The inner wall of the barrel 5 extends in the direction of the lower connecting rib 5.43 corresponding to the second opening 5.42, and forms an upper connecting rib 5.43. The upper connecting rib 5.43 and the lower connecting rib 5.43 are used to connect the material column 5.3, provide a connection position for the material column 5.3, and tighten and position the material column 5.3 at the center of the barrel 5. At the same time, the lower connecting rib 5.43 further improves the supporting effect of the barrel 5 on the rotor 12.

[0069] Specifically, the rotor 12 is provided with a protective cover 13 in both the loading device 6 and the lifting mechanism 4, which means that when the rotor 12 enters the barrel 5 for loading and in the barrel 5, the circumferential surface of the rotor 12 is provided with a protective cover 13, and the protective cover 13 is used to protect the outer surface of the rotor 12, and effectively prevent the wear of the rotor 12 during transportation and loading into the barrel 5. From another perspective, through the provision of the protective cover 13, the rotor 12 is allowed to be offset against the inner wall of the barrel 5 in the barrel 5 to further reduce the occurrence of wear.

[0070] like Fig.11As shown, in this embodiment, in order to enable the protective cover 13 thereon to be detached when the rotor 12 leaves the barrel 5, a stripping hook 7 is provided at the top of the lifting channel corresponding to the radial outer side of the rotor 12, and the stripping hook 7 partially extends into the lifting channel and corresponds to the gap between two adjacent windings of the rotor 12. During the rising process, the stripping hook 7 abuts against the protective cover 13 and at least partially detaches the protective cover 13 from the rotor 12. As the clamping module 3.3 grabs the rotor 12 and the vertical module 3.4 lifts, the protective cover 13 is completely detached from the rotor 12.

[0071] Furthermore, the unhooking hook 7 is movably arranged to remove the protective cover 13. The movement of the unhooking hook 7 can be achieved by the cooperation of the moving modules of horizontal and vertical movements to ensure that the detached protective cover 13 will not cause interference. Preferably, a collection bin is arranged at the bottom of the bottom plate 4.1 to collect the stripped protective cover 13.

[0072] On the basis of the above, the present invention also provides a loading device 6 for automatically loading the barrel 5. The barrel 5 is first loaded with a rotor 12 at a loading station, and then the fully loaded barrel 5 is transferred to a loading station, so that the barrel 5 cooperates with the lifting block 4.4 to realize automatic loading and automatic loading.

[0073] Specifically, a loading device 6 for placing the rotors 12 one by one into the barrel 5 is provided at the loading station, and the barrel 5 is arranged in a horizontal posture in the loading device 6 to receive the arranged rotors 12. In the loading station, by arranging the barrel 5 horizontally, it is effectively prevented that the rotor 12 falls from the top of the vertical barrel 5 during the loading process to cause wear and jamming.

[0074] However, it is conceivable that the lifting mechanism 4 can also be used as an auxiliary tooling for loading the rotor 12. The difference is that the barrel 5 is still arranged vertically on the lifting block 4.4, and for the unloaded barrel 5, the lifting block 4.4 is first lifted to the top of the barrel 5, and the rotor 12 can be grabbed by the manipulator 8, and the rotor 12 can be placed one by one on the lifting block 4.4, and then the lifting block 4.4 is lowered by the height of a rotor 12, thereby realizing automatic loading and avoiding jamming and wear.

[0075] It is worth mentioning that for the loading device 6 proposed in the present invention, multiple rotors 12 are arranged in an orderly manner and placed in the barrel 5 together. There is no need to repeatedly fill a single barrel 5 on the lifting mechanism 4, and the loading efficiency is effectively improved. After the current barrel 5 has taken out the material, the empty barrel 5 is grabbed by the robot 8, and the fully loaded barrel 5 is re-matched to the lifting block 4.4 on the bottom plate 4.1.

[0076] As a further embodiment of the charging device 6, the charging device 6 includes a rotor silo 10 and a rotor track 6.1 arranged at the lower part of the rotor 12 trough. The rotor silo 10 stores the rotor 12 to be wound. The rotor silo 10 can be in various forms, such as a vibration plate, or a stepped lifting silo, or the rotor 12 can be output in the form of an openable and closable baffle 8.2 at the outlet of the rotor silo 10, which will not be elaborated here.

[0077] Specifically, a translation module 6.2 is provided on the rotor track 6.1, as well as a rotor support plate 6.4 and a side positioning arm 6.3 provided on the translation module 6.2; an arc-shaped groove is provided on the rotor support plate 6.4 for supporting the bottom of the rotor 12 so that the rotor 12 can be positioned and supported thereon; the side positioning arm 6.3 is constrained on both sides when the rotor 12 is inserted and prevents the rotor 12 from falling; a rotor 12 discharge port is provided on the rotor silo 10, and the rotor support plate 6.4 receives the rotors 12 one by one through the translation module 6.2.

[0078] Among them, the side positioning arms 6.3 can be connected through two relative linear electric cylinders to control the relative positions of the two side positioning arms 6.3. The translation module 6.2 moves on the rotor track 6.1 with the axial distance of the rotor 12 as a step distance, so as to receive the rotors 12 one by one and arrange the rotors 12 on the rotor support plate 6.4 in the expected number. When the rotor 12 enters the rotor support plate 6.4, the two side positioning arms 6.3 open to each other to allow the rotor 12 to be placed. After the rotor 12 is placed, the two side positioning arms 6.3 approach each other to ensure the position reliability of the rotor 12 on the rotor support plate 6.4 to prevent it from falling.

[0079] Specifically, the loading device 6 also includes a barrel silo 11, and a barrel track 6.5 arranged at the lower part of the barrel silo 11, and the barrel track 6.5 is arranged relative to the rotor track 6.1, preferably connected in the same direction, wherein the barrel silo 11 has the same structure as the above-mentioned rotor silo 10, and will not be elaborated here.

[0080] A positioning module 6.6 is also provided on the barrel track 6.5, which is used to drive the barrel 5 to rotate on the barrel track 6.5 so that the lifting channel on the barrel 5 is arranged relative to the rotor support plate 6.4, and the barrel 5 and the rotor support plate 6.4 move relative to each other to place the rotor 12 in the barrel 5, and the rotor support plate 6.4 is inserted into the lifting channel for guiding. In this process, the side positioning arm 6.3 is opened to match the outer diameter of the barrel 5, thereby further improving the reliability of the movement of the barrel 5 and the rotor support plate 6.4, ensuring that the arranged rotors 12 can smoothly enter the barrel 5 and be inserted into the material column 5.3 in the barrel 5, and the rotors 12 enter the barrel 5 in an orderly manner, effectively improving the loading efficiency.

[0081] like Fig.12 As shown, specifically, a manipulator 8 is provided between the loading station and the charging station, and a clamping arm 8.1 is provided on the manipulator 8. The clamping arm 8.1 clamps both sides of the barrel 5 and switches the barrel 5 between a horizontal posture and a vertical posture. The manipulator 8 is also provided with a baffle 8.2. When the clamping arm 8.1 embraces the barrel 5, the baffle 8.2 blocks the discharge port 5.1 on the open end of the barrel 5 to prevent the rotor 12 from falling when the barrel 5 switches its posture.

[0082] The clamping arm 8.1 on the manipulator 8 can be opened and clamped by a finger cylinder, which is an existing conventional method and will not be described in detail here. The baffle 8.2 corresponds to the opening end of the barrel 5. Fig.12 A simple schematic diagram is shown in the figure.

[0083] In other embodiments, as a further implementation of the screw lifting module 4.2, specifically, the screw lifting module 4.2 includes a shell 9, and a screw body 4.21, a nut end and a gear system accommodated and moved inside the shell 9, the nut end is integrally arranged with the lifting block 4.4, the lifting motor 4.3 is meshed with the gear system, and the axial ends of the screw body 4.21 are limited in the shell 9, thereby driving the nut end and the lifting block 4.4 to rise and fall.

[0084] like Figure 5 As shown, for some unexpected situations, the rotor 12 may get stuck during the feeding process. Although the barrel 5 can be directly inserted and pulled out from the lifting block 4.4, when the lifting block 4.4 tilts to stop the barrel 5, the screw lifting module 4.2 needs to be unlocked.

[0085] In this embodiment, a manual operating part 4.43 is provided at one end away from the lifting block 4.4, and an emergency groove 9.1 is provided on the housing 9 for the manual operating part 4.43 to move vertically and extend out of the housing 9. The gear system includes a spur gear 4.22 and a worm wheel 4.23 and a worm 4.24 arranged at the bottom of the screw body 4.21. The worm wheel 4.23 is a double gear, including a spur tooth portion 4.231 meshing with the spur gear 4.22, and a helical tooth portion meshing with the worm 4.24. The worm 4.24 is connected to a driving motor, and a pressing portion 4.25 extending out of the housing 9 is provided on the end face of the spur tooth portion 4.231. The worm wheel 4.23 is vertically abutted with a spring 4.26 and is movably arranged.

[0086] During emergency unlocking, the spur tooth portion 4.231 on the worm gear 4.23 is axially disengaged from the spur gear 4.22 by pressing the pressing portion 4.25, thereby realizing the meshing separation of the gear system. At this time, the screw lifting module 4.2 loses the resistance of self-locking, and the lifting block is moved downward by pressing the manual operating portion 4.43, thereby disengaging from the barrel 5. After the pressing portion 4.25 is released, the worm gear 4.23 is pushed back to the meshing position by the elastic force of the spring 4.26.

[0087] Of course, a slot can also be provided on the housing 9, and the pressing portion 4.25 is specifically provided in an L-shape. When the pressing portion 4.25 is pressed in, the pressing portion 4.25 is rotated to turn the convex edge of the pressing portion 4.25 into the slot and limit the upward movement of the pressing portion 4.25, thereby keeping the gear train in a separated state for easy operation.

[0088] A feeding method for an outer rotor 12 winding device of a brushless DC motor comprises the following steps:

[0089] S1, the rotor 12 and the empty barrel 5 are loaded, the translation module 6.2 moves and aligns the front end of the rotor support plate 6.4 to the outlet of the rotor silo 10, the side positioning arm 6.3 partially opens and accommodates the rotor 12 into the arc-shaped slot, each rotor 12 enters the rotor support plate 6.4, the side positioning arms 6.3 embrace each other once, and then the translation module 6.2 moves equidistantly until the rotor support plate 6.4 is fully loaded with rotors 12;

[0090] The barrel silo 11 outputs the barrel 5 to the barrel track 6.5. The barrel 5 rotates on the barrel track 6.5 under the action of the positioning module 6.6 until the lifting channel on the barrel 5 is aligned with the rotor support plate 6.4. Then the translation module 6.2 pushes the rotor 12 into the barrel 5. At this time, the rotor support plate 6.4 is inserted into the lifting channel, and the side positioning arm 6.3 is partially opened to match the outer diameter of the barrel 5 to allow the barrel 5 to be placed. Then the barrel track 6.5 is pushed perpendicular to the direction of the translation module 6.2 to the bottom of the manipulator 8.

[0091] S2, loading the fully loaded barrel 5, the manipulator 8 grabs both sides of the fully loaded barrel 5, blocks the discharge port 5.1 of the barrel 5, and converts the barrel 5 to a vertical posture, then moves and places the barrel 5 to the loading station, at which time the lifting block 4.4 enters the avoidance port 5.4 and the lifting channel;

[0092] S3, the rotor 12 is transferred, the screw lifting module 4.2 is actuated, and the lifting block 4.4 lifts the bottom rotor 12 and pushes the top rotor 12 out from the top of the barrel 5. At this time, the stripping hook 7 abuts against the protective cover 13. As the lifting block 4.4 continues to lift, the protective cover 13 is constrained by the stripping hook 7 and at least partially detached from the rotor 12. Then the clamping module 3.3 moves to the top of the barrel 5, grabs the rotor 12 and positions it on the positioning column 3.2. At this time, the protective cover 13 is completely detached under the constraint of the stripping hook 7, ready for winding work.

[0093] In step S1, it also includes positioning the position of the barrel 5. After the positioning module 6.6 rotates the barrel 5 into place, a limit plate aligned with the rotor support plate 6.4 is provided on the barrel track 6.5. The limit plate matches the outer diameter of the lifting channel and the rotor support plate 6.4, and is movably arranged along the axial direction of the barrel 5 through a linear electric cylinder. Then the limit plate is moved and placed in the lifting channel to ensure that the barrel 5 is rotated into place.

[0094] In order to prevent the limit plate from excessively pressing the barrel 5 when the barrel 5 is not rotated to the correct angle, a force sensor is provided on the limit plate. When the limit plate senses the resistance of the barrel 5, the limit plate stops moving and retreats, and the adjustment module 6.6 recalibrates the angle of the barrel 5.

[0095] The positioning module 6.6 may be a roller 14 disposed in the barrel track 6.5, and a friction surface is disposed on the surface of the roller 14 to drive the barrel 5 to rotate. The roller 14 may be directly connected to the motor, and only a driving force needs to be provided for the roller 14. Fig.13 One of the methods is shown in FIG. 1 , which specifically has two rollers 14 , one of which is used as a driving wheel and the other roller 14 is used as a driven wheel.

[0096] After the barrel 5 is filled, the barrel track 6.5 is moved by a screw moving module perpendicular to the translation module 6.2, and a notch 6.7 for the clamping arm 8.1 of the robot 8 to be placed is provided on the barrel track 6.5.

[0097] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. An outer rotor winding device for a brushless DC motor, characterized in that: A frame (1), a winding device (2) arranged in the middle of the frame (1), a rotor loading device (3) arranged at the front end of the frame (1), and a copper wire loading device arranged at the rear end of the frame (1); The winding device (2) comprises a main shaft (2.1) rotatably arranged in the middle of a frame (1); a wire outlet tube (2.2) radially spaced from the main shaft (2.1) is provided at the front end of the main shaft (2.1); a main channel (2.3) connecting the wire outlet tube (2.2) and a copper wire feeding device is provided inside the main shaft (2.1); the wire outlet tube (2.2) is parallel to the main shaft (2.1); and the copper wire enters the wire outlet tube (2.2) from the main channel (2.3) in a tensioned posture; The rotor feeding device (3) comprises a first X-axis module (3.1) arranged at the bottom of the frame (1), a positioning column (3.2) arranged on the first X-axis module (3.1), and a clamping module (3.3) arranged on one side of the positioning column (3.2), wherein the positioning column (3.2) is used to position the rotor (12) in the axial direction and drive the rotor (12) to rotate; the first X-axis module (3.1) moves the winding column between the feeding station and the winding station; The invention also comprises a material lifting mechanism (4), wherein the material lifting mechanism (4) comprises a base plate (4.1), a screw lifting module (4.2) arranged on the base plate (4.1), a material lifting motor (4.3) for providing power, and a barrel (5) located on one side of the screw lifting module (4.2), a material lifting block (4.4) placed in the barrel (5) is arranged on the nut end of the screw lifting module (4.2), a plurality of rotors (12) are vertically stacked in the barrel (5), a discharge port (5.1) is arranged at the top of the barrel (5), the material lifting block (4.4) supports the rotor (12) at the bottom of the barrel (5) and lifts the rotor (12) at the top to the outside of the shaft end of the barrel (5), so that the clamping module (3.3) can clamp the rotor (12) and position the rotor (12) to the positioning column (3.2); The loading station is provided with a loading device (6) for placing the rotors (12) one by one into the barrel (5), and the barrel (5) is arranged in a horizontal posture in the loading device (6) and receives the arranged rotors (12).

2. The outer rotor winding device of the brushless DC motor according to claim 1, characterized in that: The top of the barrel (5) is open to allow the rotor (12) to enter or leave, and the bottom of the barrel (5) is provided with a baffle plate (5.2) that blocks the bottom of the rotor (12), and a material column (5.3) that extends upward from the baffle plate (5.2) and is used for the rotor (12) to be sleeved thereon, a receiving space corresponding to the rotor (12) is spaced between the material column (5.3) and the barrel (5), and an avoidance opening (5.4) is provided on the outer wall of the baffle plate (5.2) and the barrel (5) for the material lifting block (4.4) to be placed therein and to move axially in the barrel (5).

3. The outer rotor winding device of the brushless DC motor according to claim 2, characterized in that: The avoidance opening (5.4) is annularly arranged at a first opening (5.41) on the outer contour side of the rotor (12), and a second opening (5.42) connected to the first opening (5.41), the second opening (5.42) extending to the outer wall of the barrel (5) and forming a vertical lifting channel on the outer wall, and the avoidance opening (5.4) matches the contour of the lifting block (4.4).

4. The outer rotor winding device of the brushless DC motor according to claim 3, characterized in that: The lifting block (4.4) comprises a connecting portion (4.42) connected to the second opening (5.42) from the outside of the barrel (5), and a lifting portion (4.41) corresponding to the first opening (5.41), and the connecting portion (4.42) is connected to the nut end of the screw lifting module (4.2).

5. The outer rotor winding device of the brushless DC motor according to claim 3, characterized in that: The rotor (12) is provided with a protective cover (13) in both the charging device (6) and the lifting mechanism (4); a stripping hook (7) is provided at the top of the lifting channel corresponding to the radial outer side of the rotor (12); a portion of the stripping hook (7) extends into the lifting channel and corresponds to the gap between two adjacent windings of the rotor (12); the stripping hook (7) is movably arranged to be removed from the protective cover (13).

6. The outer rotor winding device of the brushless DC motor according to claim 5, characterized in that: The loading device (6) comprises a rotor silo (10) and a rotor track (6.1) arranged at the bottom of the rotor (12) trough; The rotor track (6.1) is provided with a translation module (6.2), and a rotor support plate (6.4) and a side positioning arm (6.3) provided on the translation module (6.2); the rotor support plate (6.4) is provided with an arc-shaped notch for supporting the bottom of the rotor (12); the side positioning arm (6.3) is constrained on both sides when the rotor (12) is placed and prevents the rotor (12) from falling; the rotor silo (10) is provided with a rotor (12) discharge port; the rotor support plate (6.4) receives the rotors (12) one by one through the translation module (6.2).

7. The outer rotor winding device of the brushless DC motor according to claim 6, characterized in that: The loading device (6) further comprises a barrel silo (11) and a barrel track (6.5) arranged at the bottom of the barrel silo (11), wherein the barrel track (6.5) is arranged relative to the rotor track (6.1), and a positioning module (6.6) is also arranged on the barrel track (6.5) for driving the barrel (5) to rotate so that the lifting channel on the barrel (5) is arranged relative to the rotor support plate (6.4), and the barrel (5) and the rotor support plate (6.4) move relative to each other so that the rotor (12) is placed in the barrel (5).

8. The outer rotor winding device of the brushless DC motor according to claim 7, characterized in that: A manipulator (8) is provided between the loading stations, and a clamping arm (8.1) is provided on the manipulator (8). The clamping arm (8.1) clamps the two sides and the open end of the barrel (5) and switches the barrel (5) between a horizontal posture and a vertical posture.

9. The outer rotor winding device of a brushless DC motor according to claim 1, characterized in that: The screw lifting module (4.2) comprises a housing (9), a screw main body (4.21) accommodated and moved inside the housing (9), a nut end and a gear train, wherein the nut end is integrally arranged with the lifting block and a manual operating part (4.43) is arranged at the end away from the lifting block, and an emergency channel (9.1) for allowing the manual operating part (4.43) to move vertically and extend outside the housing (9) is provided on the housing (9), and the gear train comprises a spur gear ( 4.22) and a worm wheel (4.23) and a worm (4.24), wherein the worm wheel (4.23) is a double gear, comprising a spur tooth portion (4.231) meshing with the spur gear (4.22) and a helical tooth portion meshing with the worm (4.24), wherein the worm (4.24) is connected to a drive motor, and a pressing portion (4.25) extending out of the housing (9) is provided on the end surface of the spur tooth portion (4.231), and the worm wheel (4.23) is vertically abutted against a spring (4.26) and is movably arranged.

10. A feeding method for the outer rotor winding device of the brushless DC motor according to claim 8, characterized in that: The following steps are involved: S1, the rotor (12) and the empty barrel (5) are loaded, the translation module (6.2) moves and aligns the front end of the rotor support plate (6.4) to the outlet of the rotor silo (10), the side positioning arm (6.3) partially opens and accommodates the rotor (12) into the arc-shaped slot, and then the translation module (6.2) moves equidistantly until the rotor support plate (6.4) is fully loaded with the rotor (12); The barrel silo (11) outputs the barrel (5) to the barrel track (6.5), and the barrel (5) rotates on the barrel track (6.5) under the action of the positioning module (6.6) until the lifting channel on the barrel (5) is aligned with the rotor support plate (6.4), and then the translation module (6.2) pushes the rotor (12) into the barrel (5), at which time the rotor support plate (6.4) is inserted into the lifting channel, and the side positioning arm (6.3) is partially opened to allow the barrel (5) to be placed, and then the barrel (5) is pushed to the bottom of the robot (8); S2, loading the fully loaded barrel (5), the manipulator (8) grabs both ends of the fully loaded barrel (5), and converts the barrel (5) to a vertical posture, and places the barrel (5) at the loading station. At this time, the lifting block enters the avoidance opening (5.4) and the lifting channel; S3, the rotor (12) is transferred, the screw lifting module (4.2) is activated, and the lifting block lifts the bottom rotor (12) and pushes the top rotor (12) out from the top of the barrel (5). At this time, the stripping hook (7) abuts against the protective cover (13). As the lifting block continues to be lifted, the protective cover (13) is restrained by the stripping hook (7) and at least partially detached from the rotor (12). Then the clamping module (3.3) moves to the top of the barrel (5), grabs the rotor (12) and positions it on the positioning column (3.2), preparing for winding.

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