A needle winding machine

Abstract

The present invention relates to a needle winding machine, comprising: a controller; a frame; a paint stripping device; at least one winding mechanism; a three-axis movable platform, at least one fixing mechanism; at least one wire clamping mechanism. Automatic winding on a stator frame or a rotor frame is achieved through the coordinated cooperation of the three-axis movable platform, the winding mechanism and the fixing mechanism. After the winding is completed, the winding mechanism pulls the copper wire to the wire clamping mechanism to cut it off and clamp a new wire end to prepare for the next operation. Because the length of the copper wire used in each winding cycle can be determined, the paint stripping device can accurately locate the position where the copper wire needs to be stripped of paint and perform the paint stripping operation, so that the position where the copper wire is stripped of paint can exactly correspond to the winding lead-out head of the stator or rotor. After the stator or rotor is wound, it is no longer necessary to strip the wire, and the stator or rotor can be prepared faster and with a higher yield rate. The present invention greatly improves the production cycle of the stator and the rotor, and the stators and rotors produced are of stable quality and reliable performance.

Description

Technical Field

[0001] The present invention relates to the technical field of motor production equipment, in particular to a needle winding machine. Background Art

[0002] Motor is a commonly used electrical equipment, which usually includes a housing, a stator and a rotor. The stator and rotor of the commonly used motor are usually made of copper wire (enameled wire) wound on the corresponding frame, such as Figure 1 and Figure 2 As shown. The winding quality of the stator and rotor is crucial to the performance of the motor and is the most critical step in their manufacturing. The stator typically has four turns of coil, while the rotor typically has six. Currently, most winding machines are only capable of single-turn winding, making switching between turns inconvenient and time-consuming. Furthermore, at the start of each winding, a small section of wire must be manually wound before the winding machine can automatically wind it, impacting production efficiency and posing a safety hazard. Furthermore, after winding the stator or rotor, the portion of the copper wire that connects to the electrical terminals (defined as the winding lead) needs to be stripped to ensure reliable power connection. Stripping this portion of the copper wire is typically performed manually, which can easily damage the wire and even render the winding useless. While dedicated strippers are available, they require manual operation, consuming considerable time and effort.

[0003] In summary, the current winding machines still have problems such as low working efficiency and low degree of automation. Summary of the Invention

[0004] The object of the present invention is to provide a needle winding machine, which can realize automatic winding on a stator and a rotor, and automatically strip the paint of the winding lead-out head, with high working efficiency and good safety.

[0005] To achieve the above object, the present invention discloses a needle winding machine, which comprises:

[0006] frame.

[0007] A paint stripping device, used for partially stripping paint from copper wire, comprises a mounting frame, a paint stripping mechanism and at least one chip extraction mechanism, wherein the mounting frame is provided with at least one cover; the paint stripping mechanism comprises at least one paint stripper and at least one second motor, the paint stripper shaft being connected to the mounting frame, and the paint stripper being placed in the internal cavity of the cover, and the second motor driving the paint stripper to rotate; the chip extraction mechanism comprises a vacuum amplifier, the feed port pipe of the vacuum amplifier being connected to the internal cavity of the cover, and the air inlet of the vacuum amplifier being connected to an external compressed air source.

[0008] At least one winding mechanism corresponds to the paint stripping device one by one, and includes a first rotating module and a needle winding head, and the rotating module drives the needle winding head to rotate.

[0009] The three-axis moving platform is used to drive the winding mechanism to move.

[0010] At least one fixing mechanism corresponds to the winding mechanism one by one, and includes a second rotating module and a fixing seat; the second rotating module is arranged on the frame and drives the fixing seat to rotate; the fixing seat is used to position and install the stator frame or the rotor frame.

[0011] At least one wire clamping mechanism corresponds to the fixing mechanism one by one. The wire clamping mechanism is arranged on the frame and close to the fixing mechanism. The wire clamping mechanism is used to clamp and cut the copper wire, and the wire clamping mechanism cooperates with the winding mechanism to tighten the copper wire.

[0012] The controller is connected to the paint stripping device, the first rotating module, the three-axis moving platform, the second rotating module and the wire clamping mechanism.

[0013] Preferably, the three-axis mobile platform includes an X-axis mobile module, a Y-axis mobile module, a Z-axis mobile module and a mounting plate; the X-axis mobile module is arranged on a frame and drives the Y-axis mobile module to move along the X-axis direction; the Y-axis mobile module drives the Z-axis mobile module to move along the Y-axis direction; the Z-axis mobile module drives the mounting plate to move along the Z-axis direction.

[0014] The X-axis moving module, the Y-axis moving module and the Z-axis moving module all include a mounting platform, a first motor, a screw and at least one guide rail; the first motor and the guide rail are fixed on the mounting platform, the screw is rotatably connected to the mounting platform, and the screw and the guide rail are parallel to each other; the first motor is transmission-connected to the screw and drives the screw to rotate.

[0015] The mounting platform of the X-axis moving module is fixed on the frame; the mounting platforms of the Y-axis moving module and the Z-axis moving module, as well as the mounting plate are all provided with a nut seat and at least one sliding block.

[0016] The nut seat of the Y-axis moving module is threadedly connected to the screw of the X-axis moving module, and the slider of the Y-axis moving module is slidably connected to the guide rail of the X-axis moving module; the nut seat of the Z-axis moving module is threadedly connected to the screw of the Y-axis moving module, and the slider of the Z-axis moving module is slidably connected to the guide rail of the Y-axis moving module; the nut seat of the mounting plate is threadedly connected to the screw of the Z-axis moving module, and the slider of the mounting plate is slidably connected to the guide rail of the Z-axis moving module.

[0017] The installation platform of the Z-axis moving module is overhead; the paint stripping device is arranged on the installation platform of the Z-axis moving module; and the winding mechanism is arranged on the installation plate.

[0018] Preferably, it also includes at least one photoelectric sensor for detecting the position of the installation platform of the Y-axis moving module. The photoelectric sensor is arranged on the installation platform of the X-axis moving module, and the installation platform of the Y-axis moving module is provided with a sensing sheet that cooperates with the photoelectric sensor.

[0019] Preferably, the paint stripping device comprises a mounting frame, a paint stripping mechanism and at least one chip extraction mechanism, and the mounting frame is provided with at least one cover shell.

[0020] The paint stripping mechanism includes at least one paint stripper and at least one second motor. The paint stripper shaft is connected to the mounting frame, and the paint stripper is placed in the inner cavity of the cover. The second motor drives the paint stripper to rotate.

[0021] The chip extraction mechanism includes a vacuum amplifier, the feed port pipe of the vacuum amplifier is connected to the internal cavity of the cover shell, the air inlet of the vacuum amplifier is connected to an external compressed air source, and the discharge port of the vacuum amplifier is suspended in the air or connected to an external waste chip collection container.

[0022] Preferably, a rotating shaft is connected to the bearing on the mounting frame, and the second motor is in transmission connection with the rotating shaft and drives it to rotate.

[0023] The paint stripper includes a connecting shaft, a cam, a limiter and at least one tool. The connecting shaft is fixed on the rotating shaft and is coaxially arranged. The connecting shaft and the rotating shaft are both provided with a wiring channel passing through in the axial direction; the limiter is arranged on the connecting shaft, the tool is arranged obliquely relative to the connecting shaft, and the tool is rotatably connected to the limiter.

[0024] The tool includes a handle and a blade, the blade is fixed at one end of the handle, a gear is provided at the other end of the handle, a cam is provided with a gear ring meshing with the gear, and the cam is rotatably connected to the connecting shaft; rotating the cam can make the blade approach or move away from the axis of the connecting shaft.

[0025] The cam is provided with a limiting rod, and the limiting member is provided with a limiting groove matched with the limiting rod; an adjusting screw for adjusting the width of the limiting groove is also screwed on the groove wall of the limiting groove.

[0026] Preferably, it further comprises at least one elastic member for resetting the cam position, one end of the elastic member is connected to the cam, and the other end is connected to the connecting shaft or the limit member; the rotation of the cam can compress or stretch the elastic member.

[0027] Preferably, the first rotating module includes a rotating cylinder, a first swing arm and a second swing arm, the output shaft of the rotating cylinder is fixedly connected to one end of the first swing arm, and the other end of the first swing arm is fixedly connected to one end of the second swing arm; the first swing arm and the second swing arm are arranged perpendicular to each other.

[0028] The needle-type winding head includes a wire guard plate, a wire hook rod, a wire wheel and a wire mouth. One end of the wire hook rod and the wire guard plate are fixedly connected to the end of the second swing arm away from the first swing arm, the wire wheel shaft is connected to the other end of the wire hook rod, and the wire mouth is fixedly connected to the end position of the wire hook rod away from the second swing arm; a wire groove or a wire hole is provided on the wire guard plate, and the wire groove or the wire hole is arranged opposite to the wire wheel; the wire mouth is flat, and a threading hole is provided on the wire mouth which passes through the axial direction, and smooth bell mouths are provided at both end openings of the threading hole.

[0029] Preferably, the second rotating module includes a third motor and a mounting seat, and the mounting seat is fixed on the output shaft of the third motor.

[0030] The fixing seat is divided into a stator frame fixing seat and a rotor frame fixing seat.

[0031] The stator frame fixing seat includes a fixing frame and at least two locking members, the fixing frame is hollow, the top of the fixing frame is provided with a mounting port adapted to the stator frame, and the bottom of the fixing frame is fixedly connected to the mounting seat; the locking members are evenly arranged on the periphery of the fixing frame, and include a pressure hook, a hinge seat and a return spring, the hinge seat is fixed on the fixing frame, the pressure hook is hinged in the hinge seat, the pressure hook has a hook portion, and the end of the hook portion is placed in the mounting port; the hinge point between the pressure hook and the hinge seat is arranged close to the hook portion, the end of the pressure hook away from the hook portion is connected to one end of the return spring, and the other end of the return spring is connected to the fixing frame.

[0032] The rotor frame fixing seat includes a fixing rod, the bottom of which is fixedly connected to the mounting seat, and the top of which is provided with a mounting rod, the shape of which is adapted to the rotor frame; a step surface is formed at the connection between the mounting rod and the fixing rod.

[0033] Preferably, the wire clamping mechanism includes a first cylinder, a second cylinder, a first clamping block, a second clamping block and a telescopic rod, the base of the first cylinder is fixed on the frame, and the push rod of the first cylinder is fixedly connected to the base of the second cylinder; the push rod of the second cylinder is connected to one end of the telescopic rod, and the other end of the telescopic rod is fixedly connected to the first clamping block; the second clamping block is fixed to the base of the second cylinder, and the second clamping block is provided with a through slide, and the telescopic rod is slidably connected to the slide; the first clamping block is provided with a shearing portion on the side close to the fixing mechanism, and the second clamping block is provided with a shearing surface cooperating with the shearing portion at a relative position; the first clamping block is provided with a first clamping portion on the side away from the fixing mechanism, and the second clamping block is provided with a second clamping portion cooperating with the first clamping portion at a relative position.

[0034] Preferably, a wire cutting mechanism is further provided between the wire clamping mechanism and the fixing mechanism, and the wire cutting mechanism includes electric scissors and a third cylinder, the base of the third cylinder is fixed on the frame, the push rod of the third cylinder is fixedly connected to the electric scissors, and the third cylinder and the electric scissors are connected to a controller.

[0035] Preferably, it also includes a clamping mechanism for driving the locking member, wherein the clamping mechanism includes a fourth cylinder, a fifth cylinder, two limit plates, at least one first sliding rod, at least one second sliding rod, at least one first clamping plate and at least one second clamping plate, and the fourth cylinder and the fifth cylinder are connected to a controller; the fixed seat is placed between the two limit plates, and the two limit plates are parallel to each other; the seat body of the fourth cylinder is fixed on one of the limit plates, and the seat body of the fifth cylinder is fixed on the other limit plate; the first sliding rod and the second sliding rod are both slidably connected to the two limit plates, and the sliding directions of the first sliding rod and the second sliding rod are both the length direction of the first sliding rod; the limit plate is provided with a limit hole that cooperates with the first sliding rod and the second sliding rod; the first clamping plate is fixed on the first sliding rod, and the second clamping plate is fixed on the second sliding rod, and the first clamping plate and the second clamping plate are alternately arranged along the length direction of the first sliding rod; the push rod of the first cylinder is fixed to the first clamping plate close to it, and the push rod of the second cylinder is fixed to the second clamping plate close to it; the first clamping plate and the second clamping plate cooperate to squeeze the pressure hook.

[0036] The present invention has the following beneficial effects:

[0037] The present invention positions and installs the stator frame or rotor frame through a fixing mechanism and rotates it. The wire clamping mechanism can clamp the wire end before winding begins, so that the copper wire can be taut, which is conducive to the winding of the copper wire. The three-axis mobile platform, the winding mechanism and the fixing mechanism cooperate to realize automatic winding on the stator frame or rotor frame. After the winding is completed, the three-axis mobile platform drives the winding mechanism to pull the copper wire to the wire clamping mechanism to cut and clamp the new wire end, preparing for the next operation. The stroke of each device and mechanism is fixed, and the length of the copper wire wound on the stator frame or rotor frame is fixed. Therefore, the length of copper wire used for each winding cycle can be determined. Then, the paint stripping device can accurately locate the position where the copper wire needs to be stripped and perform the paint stripping operation, so that the position where the copper wire is stripped can exactly correspond to the winding lead of the stator or rotor. After the stator or rotor winding is completed, the winding lead does not need to be stripped, and the stator or rotor can be prepared faster and the yield rate is higher. This invention enables automated stator or rotor winding, significantly reducing the production cycle for these devices. The resulting stators and rotors offer stable quality and reliable performance. After winding is complete, a three-axis mobile platform can move the winding mechanism out of the way, making it easier for operators to pick up and replace the stator or rotor, while also improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 Schematic diagram of the stator.

[0039] Figure 2 Schematic diagram of the rotor.

[0040] Figure 3 Schematic diagram of the present invention.

[0041] Figure 4 This is a schematic diagram from another perspective of the present invention.

[0042] Figure 5 Schematic diagram of the three-axis mobile platform of the present invention.

[0043] Figure 6 Schematic diagram of the three-axis mobile platform of the present invention from another perspective.

[0044] Figure 7 It is a schematic diagram of a paint stripping device of the present invention.

[0045] Figure 8 Schematic diagram of the paint stripping device of the present invention (part of the mounting frame is hidden).

[0046] Figure 9 Schematic diagram of the paint stripper of the present invention (the cam is hidden).

[0047] Figure 10 Schematic diagram of another viewing angle of the paint stripper of the present invention (the cam is hidden).

[0048] Figure 11 Schematic diagram of the cam of the present invention.

[0049] Figure 12 It is a cross-sectional view of the vacuum amplifier of the present invention.

[0050] Figure 13 Schematic diagram of the winding mechanism of the present invention.

[0051] Figure 14 Schematic diagram of the winding mechanism of the present invention from another perspective.

[0052] Figure 15 Schematic diagram of the stator frame fixing seat of the present invention.

[0053] Figure 16 Schematic diagram of the rotor frame fixing seat of the present invention.

[0054] Figure 17 Schematic diagram of the wire clamping mechanism of the present invention (the first cylinder is hidden).

[0055] Figure 18 Schematic diagram of the clamping mechanism of the present invention.

[0056] Description of main components symbols:

[0057] Rack 10;

[0058] Three-axis mobile platform 20, X-axis mobile module 21, Y-axis mobile module 22, Z-axis mobile module 23, mounting platform 231, first motor 232, screw 233, guide rail 234, mounting plate 24, nut seat 241, slider 242, photoelectric sensor 25, sensor sheet 26;

[0059] Paint stripping device 30, mounting frame 31, cover 311, rotating shaft 312, paint stripper 32, connecting shaft 321, baffle ring 322, cam 323, ring gear 3231, limiting rod 3232, first limiting ring 3241, second limiting ring 3242, limiting groove 3243, adjusting screw 3244, blade 3251, handle 3252, gear 3253, second motor 33, vacuum amplifier 341, feed port 3411, air inlet 3412, discharge port 3413;

[0060] Winding mechanism 40, rotary cylinder 411, first swing arm 412, second swing arm 413, wire guard plate 421, wire guide groove 4211, wire hook rod 422, wire wheel 423, wire nozzle 424, threading hole 4241;

[0061] Fixing mechanism 50, third motor 511, mounting seat 512, fixing frame 521, mounting opening 5211, screw hole 5212, hinge seat 5221, pressing hook 5222, hook portion 5223, return spring 5224, fixing rod 531, mounting rod 532, step surface 533;

[0062] Wire clamping mechanism 60, first cylinder 61, second cylinder 62, first clamping block 63, shearing portion 631, first clamping portion 632, second clamping block 64, slideway 641, shearing surface 642, second clamping portion 643, telescopic rod 65;

[0063] stator frame 71, rotor frame 72;

[0064] Clamping mechanism 80 , fourth air cylinder 81 , fifth air cylinder 82 , two limiting plates 83 , first sliding rod 84 , second sliding rod 85 , first clamping plate 86 , second clamping plate 87 . DETAILED DESCRIPTION

[0065] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0066] like Figures 3 to 18As shown, the present invention discloses a needle winding machine, which includes: a controller, a frame 10, a three-axis mobile platform 20, a paint stripping device 30, at least one winding mechanism 40, at least one fixing mechanism 50, at least one thread trimming mechanism, at least one thread clamping mechanism 60, and a clamping mechanism 80. The winding mechanism 40, fixing mechanism 50, thread trimming mechanism, and thread clamping mechanism 60 correspond to each other. In this case, two sets of each are used as an example. The two sets of fixing mechanisms 50 are used to position and install the stator frame 71 and the rotor frame 72, respectively. The controller is a PLC.

[0067] The three-axis mobile platform 20 includes an X-axis mobile module 21, a Y-axis mobile module 22, a Z-axis mobile module 23 and a mounting plate 24. Among them, the X-axis mobile module 21, the Y-axis mobile module 22 and the Z-axis mobile module 23 each include a mounting platform 231, a first motor 232, a screw 233 and two guide rails 234. The first motor 232 and the guide rail 234 are fixed on the mounting platform 231, and the screw 233 is rotatably connected to the mounting platform 231. The screw 233 and the guide rail 234 are arranged parallel to each other, and the screw 233 is placed between the two guide rails 234. The output shaft of the first motor 232 is transmission-connected to the screw 233 and drives the screw 233 to rotate. The first motor 232 is connected to the controller. The mounting platform 231 of the X-axis mobile module 21 is fixedly set on the frame 10.

[0068] A nut seat 241 and a plurality of sliders 242 are provided at the bottom of the mounting platforms 231 of the Y-axis moving module 22 and the Z-axis moving module 23, as well as at the bottom of the mounting plate 24. The nut seat 241 of the Y-axis moving module 22 is threadedly connected to the screw 233 of the X-axis moving module 21, and the slider 242 of the Y-axis moving module 22 is slidably connected to the guide rail 234 of the X-axis moving module 21. The first motor 232 of the X-axis moving module 21 drives the corresponding screw 233 to rotate. Constrained by the guide rail 234, the mounting platform 231 of the Y-axis moving module 22 moves along the length direction (X-axis direction) of the guide rail 234 of the X-axis moving module 21, thereby enabling the X-axis moving module 21 to drive the Y-axis moving module 22 to move along the X-axis direction. Similarly, the nut seat 241 of the Z-axis moving module 23 is threadedly connected to the screw rod 233 of the Y-axis moving module 22, and the slider 242 of the Z-axis moving module 23 is slidably connected to the guide rail 234 of the Y-axis moving module 22, so that the Y-axis moving module 22 drives the Z-axis moving module 23 to move along the Y-axis. The nut seat 241 of the mounting plate 24 is threadedly connected to the screw rod 233 of the Z-axis moving module 23, and the slider 242 of the mounting plate 24 is slidably connected to the guide rail 234 of the Z-axis moving module 23, so that the Z-axis moving module 23 drives the mounting plate 24 to move along the Z-axis. To provide sufficient movement space in the Z-axis direction, the mounting platform 231 of the Z-axis moving module 23 is arranged overhead.

[0069] The winding mechanism 40 is fixedly mounted on the mounting plate 24. The movement of the X-axis moving module 21 allows the winding mechanism 40 to move away from the top of the fixing mechanism 50, facilitating the replacement of the stator frame 71 and the rotor frame 72. To further ensure the X-axis moving module 21 is in place, two photoelectric sensors 25 are provided for detecting the position of the mounting platform 231 of the Y-axis moving module 22. The photoelectric sensors 25 are mounted on the mounting platform 231 of the X-axis moving module 21 and correspond to the position of the mounting platform 231 of the Y-axis moving module 22 when the winding mechanism 40 is facing the fixing mechanism 50 and the position of the mounting platform 231 of the Y-axis moving module 22 after the winding mechanism 40 has moved a distance away from the fixing mechanism 50. A sensing sheet 26 is provided on the mounting platform 231 of the Y-axis moving module 22 to cooperate with the photoelectric sensors 25. The photoelectric sensors 25 are connected to a controller.

[0070] The paint stripping device 30 is disposed on the mounting platform 231 of the Z-axis movable module 23 and is used to partially strip the paint from the copper wire. Specifically, the paint stripping device 30 includes a mounting frame 31, a paint stripping mechanism, and two sets of chip extraction mechanisms. Two covers 311 are provided on the mounting frame 31. The paint stripping mechanism includes two sets of paint strippers 32 and a second motor 33. The second motor 33 is fixed to the mounting frame 31 and is connected to a controller. Two rotating shafts 312 are connected to the mounting frame 31 via bearings. The paint strippers 32 are fixed to the rotating shafts 312 and are then rotationally connected to the mounting frame 31. The second motor 33 is connected to the two rotating shafts 312 via a belt, a gear 3253 set, or a chain. The paint strippers 32 can be driven to rotate by the second motor 33.

[0071] The paint stripper 32 is placed within the interior cavity of the housing 311. The housing 311 and the mounting bracket 31 together form a narrow, relatively enclosed space. The housing 311 is provided with a wire hole for copper wire to pass through, as well as a chip removal port facing the paint stripper 32. The chip extraction mechanism includes a vacuum amplifier 341. The feed port 3411 of the vacuum amplifier 341 is connected to the chip removal port via a pipe, and thus to the interior cavity of the housing 311. The air inlet 3412 of the vacuum amplifier 341 is connected to an external compressed air source, and the discharge port 3413 of the vacuum amplifier 341 is suspended in the air or connected to an external waste chip collection container. The vacuum amplifier 341 is model ZH19-X187, and its suction volume is more than three times the air volume of the air inlet 3412. The chip extraction mechanism creates a negative pressure within the interior of the housing 311, creating a strong suction force at the chip removal port. When the paint stripper 32 is stripping the copper wire, paint debris is removed and prevented from adhering to the wire. The external compressed air source can be an air compressor controlled by a controller.

[0072] Paint stripper 32 includes a connecting shaft 321, a baffle ring 322, a cam 323, a stopper, an elastic member, and three sets of cutting tools. The stopper includes a first stopper ring 3241 and a second stopper ring 3242. The cutting tools include a blade 3251, a handle 3252, and a gear 3253, which are connected in sequence. Connecting shaft 321 is fixedly connected to rotating shaft 312. Rotating shaft 312 and connecting shaft 321 are coaxially arranged. Both connecting shaft 321 and rotating shaft 312 have a wiring channel extending through them along their axis, which is aligned with the wiring hole.

[0073] The baffle ring 322, first retaining ring 3241, and second retaining ring 3242 are sequentially mounted and secured on the connecting shaft 321, with the baffle ring 322 positioned near the rotating shaft 312. The cam 323 is mounted on the connecting shaft 321 and can rotate freely thereon. The cam 323 abuts between the baffle ring 322 and the first retaining ring 3241, thereby restricting the cam 323 to rotation on the connecting shaft 321 but preventing it from sliding. A gear ring 3231 is provided on the cam 323.

[0074] The first limiting ring 3241 has three first limiting holes evenly distributed around its circumference, and the second limiting ring 3242 has three second limiting holes evenly distributed around its circumference. Each of the first and second limiting holes corresponds to a specific tool. The line connecting the first and second limiting holes intersects the axis of the connecting shaft 321, with the intersection being on the side away from the rotating shaft 312. The first and second limiting holes are used to limit and position the tool's tilt angle.

[0075] The blade 3251 is fixed to one end of the handle 3252, and the gear 3253 is fixed to the other end of the handle 3252. The handle 3252 is provided with an end of the gear 3253 that passes through the second limiting hole and the first limiting hole in sequence, and the gear 3253 is meshed with the ring gear 3231. The three sets of cutting tools are evenly distributed around the connecting shaft 321. The handle 3252 is provided with a plurality of limiting nuts that cooperate with the first limiting hole and the second limiting hole, thereby preventing the cutting tools from moving and ensuring the accurate positioning of the blade 3251. By rotating the cam 323, the cutting tools will rotate accordingly, causing the blade 3251 to move closer to or away from the axis of the connecting shaft 321. Blade 3251 is used for stripping paint. To prevent blade 3251 from over-damaging copper wire, the tool's rotation angle needs to be limited. Specifically, a limiting rod 3232 is provided on cam 323. Limiting slots 3243 that mate with limiting rod 3232 are provided on both baffle ring 322 and first limiting ring 3241. The limiting rod 3232 and limiting slots 3243 cooperate to limit the tool's rotation angle. To accommodate different copper wires, an adjustment screw 3244 is screwed onto first limiting ring 3241. This screw 3244 extends into limiting slot 3243, adjusting its width and, therefore, the tool's rotation angle. Preferably, to facilitate paint stripping, prevent collisions between blades 3251, and ensure control accuracy, blade 3251 is tilted relative to connecting shaft 321.

[0076] The elastic member is a torsion spring or spring. The torsion spring can be mounted on the connecting shaft 321, with one end connected to the cam 323 and the other end connected to the baffle ring 322, the first retaining ring 3241, or the connecting shaft 321. The cam 323 only needs to exert a force on the elastic member when it rotates, such as compressing or stretching it. Under normal conditions, the force exerted by the elastic member keeps the blade 3251 of the tool at its maximum relative to the axis of the connecting shaft 321, ensuring the proper passage of the copper wire. To strip paint, the paint stripper 32 is driven by the second motor 33. Centrifugal force causes the cam 323 to rotate, overcoming the force of the elastic member. However, due to the restraint imposed by the retaining groove 3243 on the retaining rod 3232, the cam 323's rotation angle is limited. Centrifugal force allows the cam 323 to maintain a constant position. After the copper wire passes through the wiring channel, its outer periphery is tangential to the three blades 3251, completing the paint stripping operation. After the paint stripping is completed, the driving member stops, the cam 323 loses the centrifugal force, and under the action of the elastic member, the cutter opens, and the blade 3251 is away from the copper wire.

[0077] Of course, the elastic part can also be omitted. The forward and reverse rotation of the second motor 33 and the cooperation of the limiting groove 3243 can be used to control whether the blade 3251 rotates to the paint stripping position. For example, the second motor 33 rotates forward and is blocked and limited by the groove wall on one side of the limiting groove 3243. The blade 3251 strips the paint on the copper wire. After the paint stripping is completed, the second motor 33 reverses and is blocked and limited by the groove wall on the other side of the limiting groove 3243. The blade 3251 is away from the copper wire to avoid damaging the copper wire.

[0078] The copper wire passes through the paint stripping device 30 and reaches the winding mechanism 40, which pulls the copper wire around the stator frame 71 or the rotor frame 72. The winding mechanism 40 includes a first rotating module and a needle winding head. The first rotating module includes a rotary cylinder 411, a first swing arm 412, and a second swing arm 413. The output shaft of the rotary cylinder 411 is fixedly connected to one end of the first swing arm 412, and the other end of the first swing arm 412 is fixedly connected to one end of the second swing arm 413. The first swing arm 412 and the second swing arm 413 are arranged perpendicular to each other. The base of the rotary cylinder 411 is fixed to the mounting plate 24, and the rotary cylinder 411 is connected to the controller.

[0079] The needle-type winding head includes a wire guard plate 421, a wire hook rod 422, a wire wheel 423 and a wire nozzle 424. One end of the wire hook rod 422 and the wire guard plate 421 are fixedly connected to the end of the second swing arm 413 away from the first swing arm 412. The rotating shaft 312 of the wire wheel 423 is connected to the other end of the wire hook rod 422 (not the end position), and the wire nozzle 424 is fixedly connected to the end position of the end of the wire hook rod 422 away from the second swing arm 413. A wire groove 4211 or a wire hole is provided on the wire guard plate 421, preferably a wire groove 4211, which is convenient for threading. The wire groove 4211 is arranged opposite to the wire wheel 423, thereby guiding the copper wire to the wire nozzle 424 and protecting the copper wire. The wire nozzle 424 is flat, and the flat direction is the vertical direction, which facilitates the wire nozzle 424 to extend into the gap between the winding parts on the stator frame 71 or the rotor frame 72. A threading hole 4241 is provided on the nozzle 424 and extends through the nozzle 424 in the axial direction. Both ends of the threading hole 4241 are provided with smooth bell-shaped openings to protect the paint coating of the copper wire from being worn.

[0080] The fixing mechanism 50 includes a second rotating module and a fixing seat. The second rotating module is arranged on the frame 10 and drives the fixing seat to rotate. The fixing seats of the two sets of fixing mechanisms 50 are respectively used to position and install the stator frame 71 and the rotor frame 72. For the convenience of distinction, these two fixing seats are defined as the stator frame fixing seat and the rotor frame fixing seat respectively. Generally speaking, when the present invention performs multiple groups of winding at the same time, it is preferred to wind the same type of skeleton. For example, the stator skeleton 71 is wound on the machine because the winding lengths of different skeletons are different and the winding methods can also be different. Ensuring the synchronization rate is conducive to improving the overall production efficiency while avoiding conflicts in the requirements of the three-axis mobile platform 20.

[0081] The second rotating module includes a third motor 511 and a mounting base 512. The mounting base 512 is fixed to the output shaft of the third motor 511. The mounting base 512 facilitates switching between the stator frame mounting base and the rotor frame mounting base. The third motor 511 is connected to a controller.

[0082] The stator frame fixing seat includes a fixing frame 521 and two locking members. The fixing frame 521 is hollow, and a mounting opening 5211 that is compatible with the stator frame 71 is provided at the top of the fixing frame 521. The stator frame 71 is placed in the mounting opening 5211 to be positioned and prevented from falling. The bottom of the fixing frame 521 is fixedly connected to the mounting seat 512. The locking members are evenly arranged around the periphery of the fixing frame 521, and include a pressure hook 5222, a hinge seat 5221, and a return spring 5224. The hinge seat 5221 is fixed to the fixing frame 521, and the pressure hook 5222 is hinged in the hinge seat 5221. The pressure hook 5222 has a hook portion 5223. The end of the hook portion 5223 is placed in the mounting opening 5211, which can press against the outer edge of the stator frame 71 to prevent the stator frame 71 from being driven up and down by the copper wire during the winding process. The hinge point between the pressing hook 5222 and the hinge seat 5221 is located near the hook portion 5223. One end of a return spring 5224 is connected to the outer wall of the fixed frame 521, and the other end of the return spring 5224 is connected to the end of the pressing hook 5222 away from the hook portion 5223. The provision of the return spring 5224 ensures that the hook portion 5223 always abuts the stator frame 71 in the absence of manual pressure.

[0083] In order to facilitate the removal of the stator frame 71 after winding, a clamping mechanism 80 is provided to cooperate with the locking member. The clamping mechanism 80 includes a fourth cylinder 81, a fifth cylinder 82, two limiting plates 83, at least one first slide bar 84, at least one second slide bar 85, at least one first clamping plate 86, and at least one second clamping plate 87. The fourth cylinder 81 and the fifth cylinder 82 are connected to a controller. The limiting plates 83 are fixed to the frame 10, and all the fixed seats are placed between the two limiting plates 83. The two limiting plates 83 are arranged parallel to each other. The limiting plates 83 are provided with limiting holes that cooperate with the first slide bar 84 and the second slide bar 85. The first slide bar 84 and the second slide bar 85 are both slidably connected to the limiting holes on the two limiting plates 83. The first slide bar 84 and the second slide bar 85 are parallel to each other and both are perpendicular to the limiting plates 83. The sliding direction of the first slide bar 84 and the second slide bar 85 is the length direction of the first slide bar 84. The first clamping plate 86 is screwed to the first slide bar 84, and the second clamping plate 87 is screwed to the second slide bar 85. The first and second clamping plates 86, 87 are arranged alternately along the length of the first slide bar 84. Each first clamping plate 86 and second clamping plate 87 is matched with a set of locking members. The base of the fourth cylinder 81 is fixed to one of the limit plates 83, and its push rod is fixed to the first clamping plate 86 adjacent to it. The base of the fifth cylinder 82 is fixed to the other limit plate 83, and its push rod is fixed to the second clamping plate 87 adjacent to it. There are two pressing hooks 5222 on the locking member, and the connecting line of the two pressing hooks 5222 is parallel to the first slide bar 84. When the fourth cylinder 81 and the fifth cylinder 82 extend at the same time, the first clamping plate 86 and the second clamping plate 87 placed on both sides of the fixed seat move relative to each other and can squeeze the lower end of the pressing hook 5222 so that the hook portion 5223 no longer abuts the stator frame 71. When the fourth cylinder 81 and the fifth cylinder 82 retract at the same time, the pressing hook 5222 returns to its original state under the action of the return spring 5224.

[0084] The rotor frame fixing seat includes a fixing rod 531, the bottom of which is fixedly connected to the mounting seat 512. A mounting rod 532 is provided at the top of the fixing rod 531. The shape of the mounting rod 532 is adapted to the rotor frame 72, so that the rotor frame 72 cannot rotate on the mounting rod 532 (typically, a through hole is provided at the center of the rotor frame 72, and the through hole is D-shaped). A step surface 533 is formed at the connection between the mounting rod 532 and the fixing rod 531 to prevent the rotor frame 72 from sliding downward. A screw can also be provided at the bottom of the mounting rod 532 to prevent the rotor frame 72 from sliding upward or even detaching.

[0085] The wire clamping mechanism 60 is arranged near the fixing mechanism 50, and is used to clamp and cut the copper wire, and the wire clamping mechanism 60 cooperates with the winding mechanism 40 to tighten the copper wire. Specifically, the wire clamping mechanism 60 includes a first cylinder 61, a second cylinder 62, a first clamping block 63, a second clamping block 64 and a telescopic rod 65. The base of the first cylinder 61 is fixed on the frame 10, and the push rod of the first cylinder 61 is fixedly connected to the base of the second cylinder 62. The push rod of the second cylinder 62 is connected to one end of the telescopic rod 65, and the other end of the telescopic rod 65 is fixedly connected to the first clamping block 63. The first cylinder 61 and the second cylinder 62 are both connected to the controller, wherein the first cylinder 61 uses a cylinder with multiple push rods to ensure that the second cylinder 62 is pushed smoothly.

[0086] The second clamping block 64 is fixed to the base of the second cylinder 62. A slideway 641 extends through the second clamping block 64. The telescopic rod 65 is slidably connected to the slideway 641. The slideway 641 also guides the telescopic rod 65. A shearing portion 631 is provided on the side of the first clamping block 63 near the fixing mechanism 50. A shearing surface 642 is provided on the opposite side of the second clamping block 64 to cooperate with the shearing portion 631. The shearing portion 631 and shearing surface 642 cooperate to cut the copper wire. A first clamping portion 632 is provided on the side of the first clamping block 63 away from the fixing mechanism 50. A second clamping portion 643 is provided on the opposite side of the second clamping block 64 to cooperate with the first clamping portion 632. The first clamping portion 632 and the second clamping portion 643 cooperate to clamp the copper wire.

[0087] The thread cutting mechanism is arranged between the thread clamping mechanism 60 and the fixing mechanism 50, and includes electric scissors and a third cylinder. The base of the third cylinder is fixed on the frame 10, the push rod of the third cylinder is fixedly connected to the electric scissors, and the third cylinder and the electric scissors are connected to the controller.

[0088] Taking the winding of the stator frame 71 as an example, during the first winding, the stator frame 71 is first fixed to the stator frame fixing seat, and then the copper wire is manually passed through the paint stripping device 30 and the winding mechanism 40 in sequence, and then the copper wire is pulled to the wire clamping mechanism 60, so that the copper wire is clamped by the first clamping part 632 and the second clamping part 643, and then automatic winding can be performed. The three-axis mobile platform 20 drives the winding mechanism 40 to pull the copper wire into the stator frame 71 and first wind one or more turns of the copper wire in a taut state, so that the copper wire ends can be compacted, and then the excess wire ends are cut off by the wire cutting mechanism to prevent the wire ends from being too long and being wound into the stator coil. After that, the second rotating module rotates repeatedly, and the winding can be carried out quickly in conjunction with the movement of the three-axis mobile platform 20. After the copper wire is wound around one turn, the second rotating module is fixed and rotated at a certain angle, and directly jumps to the winding of the next turn of the winding. After the winding of each turn group on the stator is completed, the three-axis mobile platform 20 moves, so that the winding mechanism 40 pulls the copper wire and passes it through the gap between the shearing part 631 and the shearing surface 642 and the gap between the first clamping part 632 and the second clamping part 643 in turn. Then the second cylinder 62 is actuated to cut the copper wire while pressing it. The stator is prepared, and the new wire end is pressed on the wire clamping mechanism 60, waiting for the next cycle.

[0089] In particular, some motor manufacturers require that each turn of the stator winding have a lead wire, so a plurality of screw holes 5212 are evenly distributed around the circumference of the top surface of the fixing frame 521. By locking screws in the screw holes 5212, after each turn of the stator winding is completed, the copper wire is first pulled to the screw before the next turn of the stator winding is wound. The copper wire is pulled out a certain distance by the screw blocking, thereby automatically reserving the lead wire of each turn of the winding.

[0090] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

Claims

1. A needle winding machine, characterized in that, include: frame; A paint stripping device for partially stripping paint from copper wire, comprising a mounting frame, a paint stripping mechanism, and at least one chip extraction mechanism; the mounting frame is provided with at least one cover; the paint stripping mechanism comprises at least one paint stripper and at least one second motor; the paint stripper shaft is connected to the mounting frame, the paint stripper is placed in the internal cavity of the cover, and the second motor drives the paint stripper to rotate; the chip extraction mechanism comprises a vacuum amplifier, the feed port pipe of the vacuum amplifier is connected to the internal cavity of the cover, and the air inlet of the vacuum amplifier is connected to an external compressed air source; At least one winding mechanism, corresponding one-to-one to the paint stripping device, comprising a first rotating module and a needle winding head, wherein the rotating module drives the needle winding head to rotate; A three-axis mobile platform, used for driving the winding mechanism to move; At least one fixing mechanism, corresponding to the winding mechanism one by one, including a second rotating module and a fixing seat; the second rotating module is arranged on the frame and drives the fixing seat to rotate; the fixing seat is used to position and install the stator frame or the rotor frame; At least one wire clamping mechanism, corresponding to the fixing mechanism one by one, the wire clamping mechanism being arranged on the frame and close to the fixing mechanism, the wire clamping mechanism being used to clamp and cut the copper wire, and the wire clamping mechanism cooperating with the winding mechanism to tighten the copper wire; The controller is connected to the paint stripping device, the first rotating module, the three-axis moving platform, the second rotating module and the wire clamping mechanism.

2. The needle winding machine according to claim 1, characterized in that: The three-axis mobile platform includes an X-axis mobile module, a Y-axis mobile module, a Z-axis mobile module and a mounting plate; the X-axis mobile module is arranged on the frame and drives the Y-axis mobile module to move along the X-axis direction; The Y-axis moving module drives the Z-axis moving module to move along the Y-axis direction; the Z-axis moving module drives the mounting plate to move along the Z-axis direction; The X-axis moving module, the Y-axis moving module, and the Z-axis moving module each include a mounting platform, a first motor, a screw, and at least one guide rail; the first motor and the guide rail are fixed to the mounting platform, the screw is rotatably connected to the mounting platform, and the screw and the guide rail are parallel to each other; the first motor is in transmission connection with the screw and drives the screw to rotate; The mounting platform of the X-axis moving module is fixed on the frame; the mounting platforms of the Y-axis moving module and the Z-axis moving module, as well as the mounting plate are provided with a nut seat and at least one slider; The nut seat of the Y-axis moving module is threadedly connected to the screw of the X-axis moving module, and the slider of the Y-axis moving module is slidably connected to the guide rail of the X-axis moving module; the nut seat of the Z-axis moving module is threadedly connected to the screw of the Y-axis moving module, and the slider of the Z-axis moving module is slidably connected to the guide rail of the Y-axis moving module; the nut seat of the mounting plate is threadedly connected to the screw of the Z-axis moving module, and the slider of the mounting plate is slidably connected to the guide rail of the Z-axis moving module; The installation platform of the Z-axis moving module is overhead; the paint stripping device is arranged on the installation platform of the Z-axis moving module; and the winding mechanism is arranged on the installation plate.

3. The needle winding machine according to claim 2, characterized in that: It also includes at least one photoelectric sensor for detecting the position of the installation platform of the Y-axis moving module. The photoelectric sensor is arranged on the installation platform of the X-axis moving module, and the installation platform of the Y-axis moving module is provided with a sensing sheet that cooperates with the photoelectric sensor.

4. The needle winding machine according to claim 1, characterized in that: A rotating shaft is connected to the bearing on the mounting frame, and the second motor is in transmission connection with the rotating shaft and drives it to rotate; The paint stripper includes a connecting shaft, a cam, a limiter, and at least one cutting tool. The connecting shaft is fixed to a rotating shaft and is coaxially arranged. The connecting shaft and the rotating shaft are both provided with a wiring channel penetrating therethrough in the axial direction. The limiter is arranged on the connecting shaft, the cutting tool is arranged obliquely relative to the connecting shaft, and the cutting tool is rotatably connected to the limiter. The tool comprises a handle and a blade, wherein the blade is fixed to one end of the handle, a gear is provided at the other end of the handle, a cam is provided with a gear ring meshing with the gear, and the cam is rotatably connected to the connecting shaft; rotating the cam can move the blade closer to or away from the axis of the connecting shaft; The cam is provided with a limiting rod, and the limiting member is provided with a limiting groove matched with the limiting rod; an adjusting screw for adjusting the width of the limiting groove is also screwed on the groove wall of the limiting groove.

5. The needle winding machine according to claim 4, characterized in that: It also includes at least one elastic member for resetting the cam position, one end of the elastic member is connected to the cam, and the other end is connected to the connecting shaft or the limit member; the rotation of the cam can compress or stretch the elastic member.

6. The needle winding machine according to claim 1, characterized in that: The first rotating module includes a rotating cylinder, a first swing arm and a second swing arm, wherein the output shaft of the rotating cylinder is fixedly connected to one end of the first swing arm, and the other end of the first swing arm is fixedly connected to one end of the second swing arm; the first swing arm and the second swing arm are arranged perpendicular to each other; The needle-type winding head includes a wire guard plate, a wire hook rod, a wire wheel and a wire mouth. One end of the wire hook rod and the wire guard plate are fixedly connected to the end of the second swing arm away from the first swing arm, the wire wheel shaft is connected to the other end of the wire hook rod, and the wire mouth is fixedly connected to the end position of the wire hook rod away from the second swing arm; a wire groove or a wire hole is provided on the wire guard plate, and the wire groove or the wire hole is arranged opposite to the wire wheel; the wire mouth is flat, and a threading hole is provided on the wire mouth which passes through the axial direction, and smooth bell mouths are provided at both end openings of the threading hole.

7. The needle winding machine according to claim 1, characterized in that: The second rotating module includes a third motor and a mounting base, wherein the mounting base is fixed on the output shaft of the third motor; The fixing seat is divided into a stator frame fixing seat and a rotor frame fixing seat; The stator frame fixing seat includes a fixing frame and at least two locking members, the fixing frame is hollow, the top of the fixing frame is provided with a mounting opening adapted to the stator frame, and the bottom of the fixing frame is fixedly connected to the mounting seat; the locking members are evenly arranged on the outer periphery of the fixing frame, and include a pressure hook, a hinge seat and a return spring, the hinge seat is fixed on the fixing frame, the pressure hook is hinged in the hinge seat, the pressure hook has a hook portion, and the end of the hook portion is placed in the mounting opening; the hinge point between the pressure hook and the hinge seat is arranged close to the hook portion, the end of the pressure hook away from the hook portion is connected to one end of the return spring, and the other end of the return spring is connected to the fixing frame; The rotor frame fixing seat includes a fixing rod, the bottom of which is fixedly connected to the mounting seat, and the top of which is provided with a mounting rod, the shape of which is adapted to the rotor frame; a step surface is formed at the connection between the mounting rod and the fixing rod.

8. The needle winding machine according to claim 1, characterized in that: The wire clamping mechanism includes a first cylinder, a second cylinder, a first clamping block, a second clamping block and a telescopic rod. The base of the first cylinder is fixed on the frame, and the push rod of the first cylinder is fixedly connected to the base of the second cylinder; the push rod of the second cylinder is connected to one end of the telescopic rod, and the other end of the telescopic rod is fixedly connected to the first clamping block; the second clamping block is fixed to the base of the second cylinder, and the second clamping block is provided with a penetrating slide, and the telescopic rod is slidably connected to the slide; the first clamping block is provided with a shearing portion on the side close to the fixing mechanism, and the second clamping block is provided with a shearing surface that cooperates with the shearing portion at a relative position; the first clamping block is provided with a first clamping portion on the side away from the fixing mechanism, and the second clamping block is provided with a second clamping portion that cooperates with the first clamping portion at a relative position.

9. The needle winding machine according to claim 8, characterized in that: A wire cutting mechanism is also provided between the wire clamping mechanism and the fixing mechanism. The wire cutting mechanism includes electric scissors and a third cylinder. The seat of the third cylinder is fixed on the frame. The push rod of the third cylinder is fixedly connected to the electric scissors. The third cylinder and the electric scissors are connected to a controller.

10. The needle winding machine according to claim 8, characterized in that:

18. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 17, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod. said linking rod having a round shank and a bolt as the first and second limit plates respectively. said bolt has a round shank to contact with said linking rod.

Images