Feeding mechanism

Abstract

The invention provides a feeding mechanism, which comprises at least one group of feeding and separating structures for conveying a plurality of stored hairpins in sequence and separating the hairpins one by one; and the at least one group of feeding lifting structure is arranged at the discharging end of the feeding separation structure, is matched with the feeding separation structure, receives the sequentially separated single hairpins, and sequentially conveys the hairpins to the corresponding hairpin discharging device according to the sequence required by the winding hairpins of each layer. The device has the beneficial effects that hairpins of various length specifications can be adapted according to the design requirements of stator windings, the hairpins of various length specifications can be stored and fed at the same time, a clamp does not need to be independently replaced for the hairpins of various length specifications, the clamp replacement time and maintenance cost are reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of motors, and in particular relates to a feeding mechanism. Background Art

[0002] In recent years, as countries vigorously promote energy conservation and environmental protection, new energy vehicles have developed rapidly. As we all know, the core of the new energy vehicle drive system is the drive motor; in the assembly process of the drive motor, in order to improve the assembly efficiency, the formed flat wire hairpin needs to be pre-assembled.

[0003] At present, the main method of inserting wires into the stator core is manual labor, which is inefficient, inconsistent, and unstable, and can easily have an adverse effect on subsequent stator assembly work. There are also a few that use automated methods to insert wires, using machinery to simulate manual insertion, but they are still assembled one by one, and the efficiency cannot meet production needs, and the failure rate is relatively high. Summary of the invention

[0004] In view of the above problems, the present invention provides a feeding mechanism to solve the above or other former problems existing in the prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a feeding mechanism, comprising:

[0006] At least one set of feeding and separation structures to sequentially transport the stored multiple hairpins and separate them one by one;

[0007] At least one set of feeding and lifting structures is arranged at the discharge end of the feeding and separation structure, cooperates with the feeding and separation structure, receives the single hairpins separated in sequence, and transports each hairpin to the corresponding hairpin discharge device in sequence according to the required sequence of hairpins for each layer of winding.

[0008] Furthermore, each group of feeding and separation structures includes a storage and feeding device and a cutting device arranged at the discharge end of the storage and feeding device. Multiple hairpins located on the storage and feeding device are transported to the discharge end in sequence, and the cutting device is activated, and each hairpin is separated in sequence and enters the corresponding feeding and lifting structure.

[0009] Furthermore, the material storage and feeding device includes a card issuing support assembly and a material storage driving assembly connected to the card issuing support assembly. The material storage driving assembly is actuated to drive the cards stored on the card issuing support assembly to move toward the discharge end in sequence.

[0010] Furthermore, the hairpin support assembly includes a support guide for supporting the turning portion of the hairpin and side supports arranged on both sides of the support guide, the side supports support the inside of the hairpin groove, the support guide and the side supports are both connected to the material storage drive assembly, and the hairpin moves along the support guide.

[0011] Furthermore, a sub-guide is constructed at one end of the supporting guide member close to the cutting device, and the sub-guide is arranged to extend obliquely from the end of the supporting guide member toward the feeding lifting structure, and the end of the sub-guide member connected to the supporting guide member has a distance from the corresponding end of the supporting guide member in the vertical direction, so that the supporting guide member cooperates with the cutting device, so that multiple hairpins fall on the sub-guide member in sequence.

[0012] Furthermore, the cutting device includes a cutting drive assembly and a cutting piece arranged on the cutting drive assembly, the cutting drive assembly drives the cutting piece to move, and the cutting piece is configured as follows: a side surface facing the hairpin support assembly is configured with a receiving groove, when no cutting is done, the receiving groove corresponds to the material discharging end of the hairpin support assembly, so that the hairpin located on the hairpin support assembly can enter the receiving groove;

[0013] When cutting materials, the cutting piece moves, the accommodating groove and the material discharging end of the hairpin support assembly are staggered, and the hairpin falls onto the feeding and lifting structure.

[0014] Furthermore, the feeding and lifting structure includes a matching material distribution device and a lifting device, wherein:

[0015] The material separation device is configured to selectively correspond to the feeding separation structure at different positions, and sequentially receives the hairpins separated by the feeding separation structure according to the required order of hairpins for each layer of windings;

[0016] The lifting device is arranged to be movable between the material dividing device and the card issuing and discharging device so as to transfer the cards issued at different positions to the corresponding card issuing and discharging device.

[0017] Furthermore, the material dividing device includes a swinging assembly and a plurality of material dividing guide assemblies arranged on the swinging assembly, and the material dividing guide assemblies cooperate with the feeding separation structures at different positions.

[0018] Furthermore, the material dividing device also includes a material dividing drive assembly, and the swing assembly is connected to the material dividing drive assembly. The material dividing drive assembly drives the swing assembly to move, so that the material dividing guide assembly swings and cooperates with the feeding separation structure at different positions.

[0019] Furthermore, the lifting device includes a lifting drive assembly and a conveying assembly connected to the lifting drive assembly. The conveying assembly is constructed with a plurality of baffles arranged at intervals. The lifting drive assembly drives the conveying assembly to rotate, and each hairpin conveyed by the dividing device is blocked and suspended by a corresponding baffle for conveyance.

[0020] Furthermore, the feeding and lifting structure also includes an auxiliary feeding device, which is arranged on the discharge side of the lifting device, receives the cards transmitted by the lifting device, and transmits the cards to the card discharge device.

[0021] Furthermore, the auxiliary feeding device includes a feeding assembly and a guide adjustment assembly arranged on both sides of the feeding assembly. The card is moved along the feeding assembly, and the guide adjustment assembly guides the card during its movement; wherein,

[0022] The guide adjustment assembly includes guide plates arranged relatively to each other and an adjustment member connected to the guide plates. The adjustment member is actuated to drive the guide plates arranged relatively to each other to move relatively closer or farther away, so as to limit the card issuing type.

[0023] The feeding assembly comprises a feeding slideway, and the hairpin slides along the feeding slideway.

[0024] Furthermore, it also includes a boosting component, which is arranged on both sides of the feeding component close to the discharge end, pushing the hairpin so that the hairpin slides out of the feeding component.

[0025] Due to the adoption of the above technical solution, the flat wire motor automatic wire insertion equipment has a feeding mechanism that can adapt to various length specifications of hairpins according to the design requirements of the stator winding, and can store and feed hairpins of various length specifications at the same time, without the need to replace the fixture separately for each length specification of hairpins, thereby reducing the fixture replacement time and maintenance costs, and improving production efficiency;

[0026] The feeding mechanism has multiple material storage and feeding devices. The hairpin support components of the multiple material storage and feeding devices can adapt to hairpins of different lengths and specifications, respectively, and support and store hairpins of different lengths and specifications. The straight vibrator can accelerate the movement of the hairpins on the hairpin support component to quickly load the hairpins. According to actual needs, hairpins of one or more lengths and specifications can be loaded at the same time, and there is no need to replace the clamps for hairpins of different lengths and specifications, which improves the efficiency of hairpin loading. The product has good adaptability and can load one or more layers of hairpins at the same time, which improves the feeding efficiency, reduces the possibility of scratching the enameled wire during manual loading, and improves the stability of hairpin loading; the cutting device can enable multiple hairpins on the hairpin support component to be loaded in a single form The feeding is carried out so that the material dividing device can select hairpins of different lengths and types in sequence according to the design requirements and feed them into the lifting device to ensure the accuracy of the subsequent arrangement sequence of hairpins. The lifting device can sequentially transfer the hairpins to the hairpin discharging device, and the auxiliary feeding device can guide the hairpins transferred by the lifting device into the hairpin discharging device. The distance between the two guide plates of the auxiliary feeding device can be adjusted to prevent errors and prevent hairpins with abnormal widths from falling into the hairpin discharging device. The hairpin feeding has a high degree of automation, stable action, small deformation, high feeding efficiency, and each layer of feeding does not affect each other, which improves the phenomenon of missing wires, mixed wires, and damage to the paint film. It has high adaptability and is suitable for hairpins of different lengths. The product production switch is fast and the equipment preparation time is shortened.

[0027] The automatic wire insertion equipment with the feeding mechanism has a high degree of automation, and can feed the hairpins and the stator core while winding the materials. It has stable movement, small deformation of the hairpins, and can avoid scratches on the hairpins during the insertion process. The feeding and winding do not affect each other, and each layer of feeding can be carried out independently. The hairpins can be combed more neatly and tightly before being inserted into the stator core to avoid various defects caused by looseness, thereby improving product quality and production efficiency. It has strong adaptability and can adapt to hairpins of different lengths. The product production is switched quickly, shortening the equipment preparation time. Compared with the existing equipment, it has small personnel requirements, and only a few people are needed to maintain the equipment operation, reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of an automatic wire plugging device for a flat wire motor according to an embodiment of the present invention;

[0029] Figure 2 It is a schematic diagram of the top view of the structure of the automatic wire plugging device for flat wire motors according to one embodiment of the present invention;

[0030] Figure 3 It is a structural schematic diagram of a feeding mechanism according to an embodiment of the present invention;

[0031] Figure 4 It is a structural schematic diagram of a material storage separation structure and a material distribution device according to an embodiment of the present invention;

[0032] Figure 5 is a schematic structural diagram of a cutting device according to an embodiment of the present invention;

[0033] Figure 6 is a schematic structural diagram of a lifting device according to an embodiment of the present invention;

[0034] Figure 7 is a schematic structural diagram of an auxiliary feeding device according to an embodiment of the present invention;

[0035] Figure 8 It is a structural schematic diagram of a material winding mechanism and a wire insertion mechanism according to an embodiment of the present invention;

[0036] Fig. 9 is a structural schematic diagram of a coiling mechanism according to an embodiment of the present invention;

[0037] Fig.10 1 is a schematic structural diagram of a coiling device according to an embodiment of the present invention (upper tooth guard extended);

[0038] Fig.11 1 is a schematic structural diagram of a coiling device according to an embodiment of the present invention (the upper tooth guard is not extended);

[0039] Fig.12 is a schematic diagram of a top view of a coiling device according to an embodiment of the present invention;

[0040] Fig.13 yes Fig.12 FF cross-sectional structure diagram;

[0041] Fig.14 is a schematic structural diagram of a first guide member according to an embodiment of the present invention;

[0042] Fig.15 is a schematic structural diagram of an upper mouthguard according to an embodiment of the present invention;

[0043] Fig.16 It is a structural schematic diagram of a winding device and a hairpin discharge device in a pre-weaving state according to an embodiment of the present invention;

[0044] Fig.17 is a structural schematic diagram of a wire crimping assembly according to an embodiment of the present invention;

[0045] Fig.18 It is a structural schematic diagram of a wire management and plugging device according to an embodiment of the present invention;

[0046] Fig.19 It is a structural schematic diagram of a winding mechanism and a wire insertion mechanism during wire arrangement and wire insertion according to an embodiment of the present invention;

[0047] Fig. 20 It is a structural schematic diagram of a material winding mechanism and a wire insertion mechanism according to an embodiment of the present invention (after wire insertion is completed);

[0048] Fig.21 It is a structural schematic diagram of an iron core lifting device and a tray lifting device according to an embodiment of the present invention;

[0049] Fig. 22 It is a structural schematic diagram of a card issuing turnover feeding mechanism according to an embodiment of the present invention;

[0050] Fig.23 It is a structural schematic diagram of a card issuing and discharging device according to an embodiment of the present invention.

[0051] In the figure:

[0052] 1. Loading mechanism 2. Card issuing and feeding mechanism 3. Coiling mechanism

[0053] 4. Wire insertion mechanism 5. Iron core conveying mechanism 6. Card issuing

[0054] 7. Stator core 10. Material storage and feeding device 11. Material cutting device

[0055] 12. Material dividing device 13. Lifting device 14. Auxiliary feeding device

[0056] 100, support guide 101, side support 102, storage drive assembly

[0057] 103, height increasing member 104, sub-guide member 110, cutting drive assembly

[0058] 111, cutting piece 112, receiving slot 120, material distribution drive assembly

[0059] 121, swing assembly 122, material distribution guide assembly 130, lifting drive assembly

[0060] 131, transmission component 132, stop bar 140, feeding component

[0061] 141, guide plate 142, adjustment member 143, booster assembly

[0062] 20. Card discharging device 21. Guide drive device 210. Guide assembly

[0063] 211, guide transmission assembly 212, guide drive power assembly 200, suspension bar

[0065] 201, slot 30, coiling device 31, coiling and tightening device

[0066] 32. Wire pressing device 33. Coil drive assembly 300. Central rotating shaft

[0067] 301, fixed connection member 302, first connection member 303, outer guide member

[0068] 304, upper tooth guard 305, guide base 306, second guide member

[0069] 3060, suspension groove 307, connecting sleeve 308, movable support assembly

[0070] 3080, bridging member 309, first guide member 3090, guide channel

[0071] 3040, guide pin 310, clamping rod 311, clamping member

[0072] 312, holding drive assembly 313, rotating member 34, coil feeding limiter

[0073] 35. Coil guide device 330, first coil drive member 331, second coil drive member

[0074] 320, wire pressing assembly 321, wire pressing drive assembly 40, wire management and plugging device

[0075] 41. Cable guide drive 50, conveyor line body 400, cable base

[0076] 401, lower tooth guard 402, wire hole 403, wire guide assembly

[0077] 36. Coil lifting device 51, core lifting device 52, core turnover tray

[0078] 53. Tray lifting device 520. Positioning groove 530. First positioning member

[0079] 521, positioning hole 3200, winding contact piece 3201, radial stopper DETAILED DESCRIPTION

[0080] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0081] Figure 1 A structural schematic diagram of an embodiment of the present invention is shown, which relates to a feeding mechanism for inserting wires into a stator core, arranging and feeding a plurality of hairpins, winding and weaving them, and inserting the wound windings into the stator core to realize automatic wire insertion. After the material is coiled and woven into windings, the wire insertion equipment can be directly connected to the stator core for wire insertion, without moving the hairpin windings after coiling, thereby improving the overall wire insertion time and increasing production capacity. The winding mechanism has a movable support component, which cooperates with the wire insertion mechanism for movement, and there is no need to set up an actuator separately, and it can cooperate with the wire insertion mechanism to realize support, wire management and guiding functions, thereby simplifying the structural complexity of the wire insertion equipment, reducing the equipment development cost, and improving the hairpin assembly accuracy.

[0082] A feeding mechanism, such as Figure 2-Figure 6 As shown, including:

[0083] At least one set of feeding and separation structures is used to sequentially transport the stored multiple hairpins 6 and separate them one by one, so that the hairpins 6 can be fed one by one in the form of single hairpins;

[0084] At least one set of feeding and lifting structures is arranged at the discharge end of the feeding and separation structure, and cooperates with the feeding and separation structure to receive the single hairpins 6 separated in sequence, and transport each hairpin 6 to the hairpin circulation feeding mechanism 2 in sequence. The setting of the feeding and lifting structure can receive the hairpins 6 transmitted by the feeding and separation structures located at different positions, and can transport the hairpins 6 to the positions of the hairpin circulation feeding mechanism 2 where the hairpins 6 need to be received, so that the loading mechanism 1 can simultaneously load the hairpins 6 required for the multi-layer winding, thereby improving the loading efficiency of the hairpins 6.

[0085] The number of feeding separation structures is at least one group, which can be one group or multiple groups. The number of groups is selected and set according to actual needs. No specific requirements are made here. The setting of multiple groups of feeding separation structures can simultaneously load multiple types of hairpins 6, and can also load multiple groups of one type of hairpin 6 at the same time.

[0086] When installing, the multiple groups of feeding separation structures are fixedly installed on the material storage mounting frame, which is a frame structure with multiple mounting plates. The material storage mounting frame is arranged in multiple layers. On the mounting plates of each layer, multiple groups of feeding separation structures can be installed side by side, so that the multiple groups of feeding separation structures are arranged in multiple rows and columns in space, and the installation space is fully utilized, so that the loading mechanism 1 has a compact structure and occupies a small space. When the multiple groups of feeding separation structures are arranged in multiple rows and columns, the feeding ends of the multiple groups of feeding separation structures are located on the same side, and the discharging ends of the multiple groups of feeding separation structures are located on the same side. The multiple groups of feeding separation structures can work at the same time and can load multiple types of multiple hairpins 6 at the same time.

[0087] Each feeding and separation structure can store multiple hairpins 6 of the same type. Each of the above-mentioned feeding and separation structures includes a storage feeding device 10 and a cutting device 11 arranged at the discharge end of the storage feeding device 10. The multiple hairpins 6 located on the storage feeding device 10 are transported to the discharge end in turn, the cutting device 11 is activated, and each hairpin 6 is separated in turn and enters the corresponding feeding and lifting structure. Multiple hairpins 6 are loaded from the feed end of the storage feeding device 10 and placed on the storage feeding device 10 for storage, and the multiple hairpins 6 are arranged in sequence in the form of columns. The storage feeding device 10 is activated to drive the hairpins 6 to move toward the discharge end to transport and load the hairpins 6. When a hairpin 6 is transported to the discharge end, the cutting device 11 is activated to separate a hairpin 6 closest to the cutting device 11 (located at the front of the hairpins 6 arranged in a column) from the storage feeding device 10 and enter the feeding and lifting structure.

[0088] like Figure 4 and 5 As shown, the above-mentioned material storage and feeding device 10 includes a card issuing support component and a material storage driving component 102 connected to the card issuing support component. The material storage driving component 102 is actuated to drive the card issuing 6 stored on the card issuing support component to move toward the discharging end in sequence. Multiple card issuing 6 are placed on the card issuing support component in sequence, and the card issuing support component supports the multiple card issuing 6. In order to facilitate the multiple card issuing 6 placed on the card issuing support component to move quickly toward the discharging end and improve the loading efficiency of the card issuing 6, in this embodiment, the card issuing support component is arranged as a whole in an inclined manner, inclined from the feeding end of the card issuing support component toward the discharging end, and the height of the feeding end is greater than the height of the discharging end, so that the card issuing 6 can move toward the discharging end under the action of its own gravity, and under the driving action of the material storage driving component 102, the card issuing 6 is accelerated to move toward the discharging end.

[0089] Since the hairpin 6 is a U-shaped conductor, the above-mentioned hairpin support assembly includes a support guide 100 for supporting the turning part of the hairpin and side supports 101 arranged on both sides of the support guide 100, and the side supports 101 support the inside of the two grooves of the hairpin 6. The support guide 100 and the side supports 101 are both connected to the material storage drive assembly 102, and the hairpin 6 moves along the support guide 100. The support guide 100 is a rod-shaped structure, and the shape of the side surface thereof in contact with the hairpin 6 is preferably an arc, so that the hairpin 6 can slide along the length direction of the support guide 100. The side support 101 is also a rod-shaped structure, and when installed, the side support 101 is located on both sides below the support guide 100. The support guide 100 and the two side support members 101 form a triangular structure, so that when the hairpin 6 is placed on the hairpin support assembly, the turning part of the hairpin contacts the support guide 100, and the two grooves of the hairpin 6 contact the corresponding side support members 101 respectively, and are suspended on the hairpin support assembly. In this embodiment, the length of the support guide 100 is adapted to that of the side support members 101. The distance between the two side support members 101 on different hairpin support assemblies can be different, so that error prevention can be performed to avoid hairpin loading errors.

[0090] The above-mentioned storage drive assembly 102 is a straight vibrator, which can generate vibration, so that the hairpin support assembly installed on the straight vibrator generates vibration, and then the hairpin 6 slides along the support guide 100. The straight vibrator is fixedly installed on the mounting plate of the storage mounting frame. Since the hairpin 6 has a certain length, in order to enable the hairpin 6 to slide along the support guide 100, the hairpin 6 will not contact the mounting plate. A heightening member 103 is connected between the hairpin support assembly and the storage drive assembly 102, so as to support and feed hairpins 6 of different models. The heightening member 103 is a plate-like structure, and the support guide 100 is fixedly installed on the top of the heightening member 103. Two side support members 101 are fixedly installed on both sides of the heightening member 103, and the bottom end of the heightening member 103 is fixedly connected to the straight vibrator. In order to reduce the weight of the heightening member 103, a plurality of weight-reducing holes can be set on the heightening member 103.

[0091] The end of the support guide 100 close to the material cutting device 11 is configured with a sub-guide 104, which is arranged to extend obliquely from the end of the support guide 100 toward the feeding and lifting structure, and the end of the sub-guide 104 connected to the support guide 100 and the corresponding end of the support guide 100 have a distance in the vertical direction, so that the support guide 100 cooperates with the material cutting device 11, so that a plurality of hairpins 6 located on the support guide 100 fall on the sub-guide 104 in sequence. In order to enable the hairpins 6 to slide quickly along the sub-guide 104 and fall onto the feeding and lifting structure, in this embodiment, the end of the sub-guide 104 connected to the support guide 100 is higher than the end of the sub-guide 104 close to the feeding and lifting structure in the vertical direction, so that the hairpins 6 slide along the sub-guide 104 under the action of their own gravity. The sub-guide 104 is a rod-shaped structure, and its side surface in contact with the hairpins 6 is arc-shaped.

[0092] The sub-guide 104 is fixedly connected to the lower side of the end of the supporting guide 100, and a connecting portion protrudes from the lower surface of one end of the supporting guide 100 close to the sub-guide 104 for connecting to the sub-guide 104. The fixed connection between the sub-guide 104 and the supporting guide 100 is preferably integrally formed.

[0093] A hairpin 6 located at the end of the support guide 100 enters the cutting device 11, and the cutting device 11 is activated. The cutting device 11 moves relative to the end of the support guide 100, so that a hairpin 6 falls on the sub-guide 104. The above-mentioned cutting device 11 includes a cutting drive assembly 110 and a cutting piece 111 arranged on the cutting drive assembly 110. The cutting drive assembly 110 drives the cutting piece 111 to operate, so that the cutting piece 111 can move up and down in the vertical direction; the cutting piece 111 is a plate-like structure, and a side of the cutting piece 111 facing the hairpin support assembly is configured with a receiving groove 112 to receive the hairpin 6. The size of the receiving groove 112 is not larger than the size of the hairpin 6. There can be a gap between the cutting piece 111 and the end of the support guide 100, and the gap size is smaller than the size of the hairpin 6. The cutting piece 111 1 is configured as follows: when the material is not cut, the accommodating groove 112 corresponds to the material discharging end of the hairpin support assembly, so that the hairpin 6 located on the hairpin support assembly can enter the accommodating groove 112, and the hairpin 6 is at least partially located in the accommodating groove 112, and is stuck between the cutting member 111 and the end of the support guide member 100; when the material is cut, the cutting member 111 moves, and when the cutting drive assembly 110 drives the cutting member 111 to move downward, the accommodating groove 112 is staggered with the material discharging end of the hairpin support assembly, and the hairpin 6 falls on the sub-guide member 104 and slides along the sub-guide member 104, and the hairpin 6 falls on the feeding lifting structure.

[0094] The cutting drive assembly 110 can be an electromagnet slide, and the cutting piece 111 is fixedly mounted on the slider of the electromagnet slide. It can also be a cylinder, a pneumatic slide, or a screw transmission structure, or other structures that can enable the cutting piece 111 to move up and down in the vertical direction. The selection is made according to actual needs, and no specific requirements are made here.

[0095] like Figure 3 , Figure 4 and Figure 6 As shown, the above-mentioned feeding and lifting structure includes a matching dividing device 12 and a lifting device 13, wherein the dividing device 12 is configured to selectively correspond to the feeding separation structures at different positions, and receive the hairpins 6 separated in sequence by the feeding separation structures; the dividing device 12 can correspond to one feeding separation structure, or one feeding separation structure. When the dividing device 12 corresponds to one feeding separation structure, it is fixed at the feeding separation discharge end to receive the hairpins 6. When the dividing device 12 corresponds to multiple feeding separation structures, it can be one dividing device 12 corresponding to a row of feeding separation structures. The dividing device 12 can be moved / rotated to the feeding separation structure at the required position to receive the hairpins 6. The number of dividing devices 12 and the number of feeding separation structures corresponding to the dividing device 12 are selected according to actual needs. No specific requirements are made here. The setting of the dividing device 12 can arrange the hairpins of different lengths or types required for the same layer of windings in a specified order and transmit them to the hairpin turnover feeding mechanism 2 through the lifting device 13.

[0096] The lifting device 13 is configured to be movable between the dividing device and the card issuing and discharging device. In the present embodiment, preferably, the lifting device 13 is configured to be movable in the vertical direction to receive the cards 6 delivered by the dividing device 12 so as to deliver the cards 6 at different positions to the card issuing turnover feeding mechanism 2.

[0097] The above-mentioned material distribution device 12 includes a material distribution drive component 120, a swing component 121 connected to the material distribution drive component 120, and a plurality of material distribution guide components 122 arranged on the swing component 121. The material distribution drive component 120 drives the swing component 121 to move, so that the material distribution guide component 122 swings, so that the material distribution guide component 122 cooperates with the feeding separation structure at different positions. The number of the material distribution guide components 122 is multiple, and they are sequentially arranged on the swing component 121 along the vertical direction, and each material distribution guide component 122 corresponds to a material storage feeding device 10, receiving the hairpin 6 sliding out from the distribution guide 104, and the hairpin 6 slides along the material distribution guide component 122 and falls onto the lifting device 13; the structure of the material distribution guide component 122 is the same as the mechanism of the above-mentioned hairpin support component, and also includes a support guide 100 and side supports 101 arranged on both sides of the support guide 100, and the two side supports 101 are located below the support guide 100. In this embodiment, preferably, the number of the material distribution guide assemblies 122 is two, and correspondingly, the number of the material storage and feeding devices 10 in one row is also two.

[0098] The swing component 121 can be a rotating shaft, and the material distribution guide component 122 is fixedly installed on the rotating shaft. When the rotating shaft rotates, it can drive the material distribution guide component 122 to swing; the swing component 121 can also be: including a first swing member and a second swing member, the first swing member is connected to the second swing member, and is coaxially arranged, the first swing member is connected to the material distribution drive component 120, the material distribution drive component 120 drives the first swing member to rotate, and drives the second swing member to rotate, and the material distribution guide component 122 is installed on the first swing member and the second swing member. The first swinging member includes a rotating frame and a mounting shaft arranged on the rotating frame, one end of the rotating frame is connected to the material distribution drive assembly 120 through a coupling, and the other end is connected to the second swinging member through a coupling, the mounting shaft is located inside the rotating frame, one end of the mounting shaft is connected to the rotating frame, and the mounting shaft and the second swinging member are coaxially arranged, the material distribution guide assembly 122 is fixedly installed on the other end of the mounting shaft, the shape of the rotating frame is preferably square, and the rotating frame will not interfere with the rotation of the material distribution guide assembly 122 installed on the mounting shaft; the second swinging member is an axis structure, and the free end of the second swinging member is equipped with the material distribution guide assembly 122.

[0099] The above-mentioned material distribution driving component 120 is preferably a motor.

[0100] The lifting device 13 comprises a lifting drive assembly 130 and a transmission assembly 131 connected to the lifting drive assembly 130. The transmission assembly 131 is constructed with a plurality of baffles 132 arranged at intervals. The lifting drive assembly 130 drives the transmission assembly 131 to rotate, and a hairpin 6 is blocked and suspended by a baffle 132 for transmission. The transmission assembly 131 is a belt transmission structure, and the transmission assembly 131 is placed approximately vertically. The belt of the transmission assembly 131 rotates in the vertical direction. A plurality of baffles 132 are arranged on the outer side surface of the belt (the side not in contact with the pulley). The plurality of baffles 132 are arranged in sequence along the circumferential direction of the belt, and the baffles 132 are inclined when arranged, and are inclined from top to bottom in the vertical direction, so that each baffle 132 can hang a hairpin 6. In this embodiment, the plurality of baffles 132 are preferably arranged at equal intervals, so that the rotation speed of the transmission assembly 131 matches the feeding speed of the storage and feeding device 10, and the hairpins 6 are received one by one.

[0101] The lifting drive assembly 130 is preferably a motor, which drives the belt structure to rotate.

[0102] In order to allow the card 6 of the lifting device 13 to smoothly enter the card-issuing circulation feeding mechanism 2, the feeding lifting structure also includes an auxiliary feeding device 14, which is arranged at the discharge side of the lifting device 13, receives the card 6 transmitted by the lifting device 13, and transmits the card 6 to the card-issuing circulation feeding mechanism 2. The auxiliary feeding device 14 includes a feeding assembly 140 and a guide adjustment assembly arranged on both sides of the feeding assembly 140. The card 6 transmitted from the lifting device 13 falls on the feeding assembly 140 and slides along the feeding assembly 140. The guide adjustment assembly defines the type of the card 6. The card 6 that meets the requirements is transmitted to the card-issuing circulation feeding mechanism 2 along the feeding assembly 140, and the card 6 that does not meet the type is picked out by the guide adjustment assembly.

[0103] Among them, Figure 7As shown, the guide adjustment assembly includes relatively arranged guide plates 141 and an adjustment member 142 connected to the guide plates 141. The adjustment member 142 is actuated to drive the relatively arranged guide plates 141 to be relatively close to or far away from each other so as to limit the type of the hairpin 6. For a hairpin 6 with a relatively large pitch, the distance between the relatively arranged guide plates 141 can be increased so that the hairpin 6 slides along the feeding assembly 140, and the guide plates 141 support the hairpin 6 and guide the sliding of the hairpin 6. For a hairpin 6 with a relatively small pitch, the distance between the relatively arranged guide plates 141 can be reduced so that when the hairpin 6 slides along the feeding assembly 140, the guide plates 141 can contact with the hairpin 6, support the hairpin 6 and guide the sliding of the hairpin 6. The guide plates 141 are arranged along the moving direction of the hairpin 6. The adjustment member 142 is a rodless cylinder. Through the action of the cylinder, the relatively arranged guide plates 141 can be relatively close to or far away from each other.

[0104] The feeding assembly 140 includes a feeding slideway, and the hairpin 6 slides along the feeding slideway. The feeding slideway is a rod-shaped structure, which is consistent with the structure of the supporting guide member 100 and will not be described in detail here.

[0105] The auxiliary feeding device 14 also includes a booster assembly 143, which is arranged on both sides of the feeding assembly 140 near the discharge end, and moves the hairpin 6 so that the hairpin 6 slides out of the feeding assembly 140. In the present embodiment, there are two booster assemblies 143, which are arranged on both sides of the feeding assembly 140, and the booster assembly 143 is located on the outside of the guide plate 141, and a through hole is provided at the corresponding position of the guide plate 141, so that the booster assembly 143 can partially pass through the guide plate 141 and extend to the space between the two guide plates 141, so that the booster assembly 143 can contact the hairpin 6 sliding along the feeding assembly 140, and move the hairpin 6 so that the hairpin 6 can quickly slide into the hairpin turnover feeding mechanism 2.

[0106] The booster assembly 143 includes a material-digging driving member and a dial plate connected to the material-digging driving member. The material-digging driving member drives the dial plate to rotate. The material-digging driving member is a disc-shaped structure. The material-digging driving member is a motor. The material-digging driving member is connected to the output shaft of the motor and is driven by the motor to rotate. A part of the material-digging driving member passes through the through hole on the guide plate 141 and extends between the two guide plates 141. The material-digging driving member contacts the hairpin 6. Through the rotation of the material-digging driving member, the forward sliding power is provided for the sliding of the hairpin 6, so that the hairpin 6 can slide into the hairpin turnover feeding mechanism 2 more smoothly.

[0107] A flat wire motor automatic plug-in device, such as Figure 1 and Figure 2As shown, it includes the above-mentioned feeding mechanism 1, which is used to store and feed the hairpins 6. A plurality of hairpins 6 of various types can be stored on the feeding mechanism 1, and at least one type of hairpin 6 can be fed in a single form under the action of the feeding mechanism 1;

[0108] The card-issuing turnover feeding mechanism 2 receives the cards 6 from the feeding mechanism 1, arranges the cards 6 in rows, and transports the arranged cards 6 to the coiling position;

[0109] The winding mechanism 3 cooperates with the card issuing turnover feeding mechanism 2, receives the hairpins 6 transmitted by the card issuing turnover feeding mechanism 2, and winds and braids a plurality of hairpins 6, fixes the hairpins 6 on the winding mechanism 3, and constructs a ring-shaped winding structure for use in plugging in;

[0110] The wire insertion mechanism 4 is arranged opposite to the coiling mechanism 3 and cooperates with the coiling mechanism 3 to receive the annular winding structure and insert the annular winding structure onto the stator core 7 to complete the wire insertion.

[0111] When the flat wire motor automatic plug-in device is working, the corresponding type of hairpin 6 is selected according to the design of the stator winding, and multiple hairpins 6 of each type are stored on the feeding mechanism 1. The feeding mechanism 1 feeds the hairpins 6 in a single form and feeds the hairpins 6 one by one to the hairpin circulation feeding mechanism 2; multiple hairpins 6 are arranged in rows, and the arrangement form of each row of hairpins 6 is adapted to the structural form of a layer of winding of the stator winding. The hairpin circulation feeding mechanism 2 transports the hairpins 6 arranged in rows to the winding mechanism 3, and the winding mechanism 3 cooperates with the hairpin circulation feeding mechanism 2 to feed the hairpins 6 on the hairpin circulation feeding mechanism 2. The hairpin 6 is peeled off and wound on the winding mechanism 3 to form a layer of annular winding structure, completing the winding and weaving of one layer of winding, the winding mechanism 3 is actuated, and cooperates with the hairpin turnover feeding mechanism 2 again to wind and weave another row of hairpins 6 on the winding mechanism 3 to form a layer of annular winding structure again, completing the weaving of another layer of winding, repeating the above steps to complete the winding and weaving of multiple layers of windings to form a stator winding structure, the wire insertion mechanism 4 is actuated, and cooperates with the winding mechanism 3 to receive the stator winding structure on the winding mechanism 3, and insert the stator winding structure on the stator core 7 to complete the wire insertion.

[0112] like Fig. 22 and Fig.23As shown, the above-mentioned card issuing turnover feeding mechanism 2 includes a guide drive device 21 and a plurality of groups of card issuing discharging devices 20 arranged on the guide drive device 21. The guide drive device 21 drives the card issuing discharging device 20 to operate so that the card issuing discharging device 20 cooperates with the loading mechanism 1 to receive the card 6 transmitted by the loading mechanism 1. The guide drive device 21 drives the card issuing discharging device 20 to perform linear motion and controls the running speed of the card issuing discharging device 20 so that the running speed of the card issuing discharging device 20 is adapted to the speed at which the lifting device 13 transmits the card 6. The card issuing discharging device 20 can receive the card 6 transmitted by the lifting device 13 one by one, and make each card 6 hang on the card issuing discharging device 20.

[0113] Among them, the hairpin discharge device 20 is provided with a plurality of slots 201, and the plurality of slots 201 are arranged in a straight line, and a plurality of hairpins 6 can be suspended at the same time. In this embodiment, preferably, each hairpin discharge device 20 can suspend the hairpins 6 required to form a layer of winding, and form a layer of winding structure after winding.

[0114] Specifically, the hairpin discharge device 20 includes a discharge body and a plurality of hanging bars 200 arranged on the discharge body. The discharge body is a plate-shaped structure. The plurality of hanging bars 200 are all arranged on the same side of the discharge body, and the plurality of hanging bars 200 are arranged in a straight line along the length direction of the discharge body. Two adjacent hanging bars 200 form a notch 201 structure. The plurality of hanging bars 200 are arranged in at least one row. The plurality of hanging bars 200 are arranged at equal intervals to ensure that a plurality of hairpins 6 of the same type can be suspended at the same time. The distance between two adjacent hanging bars 200 on different hairpin discharge devices 20 is different. There is a fixed spacing, corresponding to the adapted hairpin 6, for error prevention, and the distance between two adjacent suspension bars 200 is selected and set according to actual needs, and no specific requirements are made here; the number of slots 201 in each row is selected and set according to the number of hairpins 6 in each layer of the stator winding, and the number of slots 201 in each row is greater than the number of hairpins 6 in each layer of the stator winding, so that multiple hairpins 6 suspended on a hairpin discharge device 20 are wound and woven to form a winding structure of one layer of the stator winding, and the number of slots 201 in each row is selected according to actual needs, and no specific requirements are made here.

[0115] In this embodiment, in order to support the hairpin 6 and arrange the hairpin 6 at the same time, so that the inside of the groove of each hairpin 6 is individually located in a notch 201, which is convenient for the subsequent winding and weaving of multiple hairpins 6, multiple suspension bars 200 are arranged in at least two rows, and the multiple rows of suspension bars 200 correspond one to one, and the notches 201 constructed by the corresponding two adjacent suspension bars 200 also correspond one to one, so that the inside of a groove of the hairpin 6 is located in multiple corresponding notches 201, and is suspended on the hairpin discharge device 20. There is a certain gap between the two adjacent rows of suspension bars 200, and the gap is selected according to actual needs; the suspension bar 200 is fixedly connected to the discharge body, and the fixed connection method is preferably integrally formed.

[0116] There are multiple hairpin discharge devices 20. The number and arrangement of hairpins 6 on one hairpin discharge device 20 correspond to the number and arrangement of hairpins 6 required for a layer of winding structure constituting the stator winding. According to the design requirements of the stator winding, during the wire insertion process, a suitable hairpin discharge device 20 can be selected according to the number of layers of the stator winding and the number and type of hairpins 6 in each layer, so that the corresponding number and type of hairpins 6 can be hung.

[0117] The card discharging device 20 is connected to the guide drive device 21 through a connecting bracket, and can move relative to the guide drive device 21 to transmit the card 6. The guide drive device 21 includes a guide drive power assembly 212, a guide transmission assembly 211 and a guide assembly 210 arranged on the guide drive power assembly 212, and the guide assembly 210 is arranged along the circumferential direction of the guide transmission assembly 211. The card discharging device 20 is movably arranged on the guide assembly 210, and the card discharging device 20 is connected to the guide transmission assembly 211. The guide drive power assembly 212 drives the guide transmission assembly 211 to move, so that the card discharging device 20 moves along the guide assembly 210. The driving guide device also includes a revolving bracket to facilitate the installation of the guide drive power assembly 212, the guide transmission assembly 211 and the guide assembly 210. The guide drive power assembly 212, the guide transmission assembly 211 and the guide assembly 210 are all installed on the revolving bracket, and the guide transmission assembly 211 can rotate relative to the revolving mounting bracket.

[0118] The guide transmission component 211 is a belt transmission structure, and the guide drive power component 212 is a motor. There is at least one motor, which is connected to the driving wheel of the belt transmission structure to drive the driving wheel to rotate, drive the belt to rotate, and then drive the driven wheel to rotate. In the present embodiment, preferably, there are two groups of belt drive structures, each group contains two sets, the two groups of belt drive structures are arranged in sequence along the vertical direction, and the driving wheels of the two groups of belt drive structures are coaxially arranged, and the driven wheels are also coaxially arranged, and each set of belt drive structures is equipped with a plurality of card discharging devices 20, and the plurality of card discharging devices 20 are driven by the belt and rotate with the belt, and the card discharging devices 20 are fixedly connected to the belt through a connecting bracket, and the structure of the connecting bracket can be selected according to actual needs, such as an L-shaped structure, one end of the connecting bracket is fixedly connected to the card discharging device 20, and the other end is fixedly connected to the belt, when the card discharging device 20 is installed, the side surface of the card discharging device 20 with the groove 201 faces the outer side surface of the belt drive structure, so that the card discharging device 20 can receive the card 6 transmitted by the lifting device 13, and through the rotation of the belt, the card discharging device 20 can move to the winding mechanism 3, and the winding mechanism 3 winds and weaves the plurality of card 6 on the card discharging device 20.

[0119] The guide assembly 210 is an annular guide rail, which is arranged around the outer peripheral side of the belt transmission structure. The card discharging device 20 is fixedly connected to the slider on the annular guide rail, so that the card discharging device 20 can slide along the annular guide rail. The belt rotates to drive the card discharging device 20 to slide along the annular guide rail, and the annular guide rail guides the sliding of the card discharging device 20. In this embodiment, preferably, there are two annular guide rails, which are arranged in sequence in the vertical direction, and the two annular guide rails are located between two groups of belt transmission structures, one group of annular guide rails is connected to the card discharging device 20 on one group of belt transmission structures, and the other group of annular guide rails is connected to the card discharging device 20 on the other group of belt transmission structures, and the card discharging device 20 on each group of belt transmission structures slides along the corresponding annular guide rails.

[0120] The number of card issuing turnover feeding mechanisms 2 is at least one, and multiple card issuing turnover feeding mechanisms 2 are arranged on at least one side of the winding mechanism 3. In the present embodiment, preferably, multiple card issuing turnover feeding mechanisms 2 are arranged on both sides of the winding mechanism 3 to feed multiple layers of card issuing 6. A card issuing discharge device 20 on the first card issuing turnover feeding mechanism 2 feeds the card issuing 6 required for one layer of winding, and loading is performed after feeding. At this time, a card issuing discharge device 20 of the second card issuing turnover feeding mechanism 2 feeds the card issuing 6 required for another layer of winding, and loading is performed after feeding. At this time, another card issuing discharge device 20 of the first card issuing turnover feeding mechanism 2 feeds the card issuing 6 required for another layer of winding, ..., until the card issuing 6 required for the last layer of winding is fed. Multiple card issuing discharge devices 20 on multiple card issuing turnover feeding mechanisms 2 work simultaneously, thereby improving the feeding efficiency of the card issuing 6 when the winding mechanism 3 is winding.

[0121] Each set of card issuing circulation feeding mechanism 2 is equipped with a feeding mechanism 1, and the feeding mechanism 1 feeds the corresponding card issuing circulation feeding mechanism 2. In this embodiment, there are two card issuing circulation feeding mechanisms 2, which are arranged on both sides of the coiling mechanism 3, and feed the materials from both sides of the coiling mechanism 3. Accordingly, there are also two feeding mechanisms 1.

[0122] like Figure 8-Figure 17 As shown, the above-mentioned winding mechanism 3 includes a winding device 30, a winding guide device 35 at least arranged on one side of the winding device 30, and a winding and holding device 31. The winding and holding devices 31 are arranged on opposite sides of the winding device 30, and the winding guide device 35 is arranged on at least one winding and holding device 31. The winding device 30 cooperates with the card issuance turnover feeding mechanism 2 to control the rotation speed of the winding device 30 to be adapted to the moving speed of the card issuance discharge device 20. The winding guide device 35 peels the hairpin 6 to On the winding device 30, the winding guide device 35 peels off each hairpin 6 from the hairpin discharge device 20 in turn, and hangs them on the winding device 30 in turn for winding and weaving, until all the hairpins 6 on the hairpin discharge device 20 are hung on the winding device 30, and the winding and rounding holding device 31 holds the hairpins 6 hung on the winding device 30, and fixes each hairpin 6 on the winding device 30, constructing a ring winding structure to maintain the shape and prevent the hairpin winding from spreading out, so as to facilitate subsequent wire insertion.

[0123] like Figure 9-Figure 16As shown, the above-mentioned winding device 30 includes an upper toothpick 304, an upper toothpick telescopic driving assembly connected to the upper toothpick 304 for movement, and an outer layer guiding assembly, the outer layer guiding assembly is connected to the upper toothpick telescopic driving assembly, and the outer layer guiding assembly and the upper toothpick telescopic driving assembly can rotate relative to each other, there are multiple upper toothpick 304, which are arranged in sequence along the circumference of the upper toothpick telescopic driving assembly, the upper toothpick telescopic driving assembly drives multiple upper toothpick 304 to telescope simultaneously, and drives multiple upper toothpick 304 to disperse and gather, the outer layer guiding assembly guides the hairpin 6 suspended on the upper toothpick 304, and guides the upper toothpick 304 when telescoping, a first accommodating groove is constructed between two adjacent upper toothpick 304, which can accommodate the inside of a groove of the hairpin 6, and the multiple upper toothpick 304 are arranged at equal intervals, and multiple first accommodating grooves are constructed, which can accommodate the inside of the grooves of multiple hairpins 6, so that multiple hairpins 6 can be hung on the winding device 30.

[0124] The above-mentioned upper tooth guard telescopic drive assembly includes a central rotating shaft 300 and a first guide member 309 and a second guide member 306 arranged on the central rotating shaft 300. The upper tooth guard 304 is arranged between the first guide member 309 and the second guide member 306. The opposite surfaces of the first guide member 309 and the second guide member 306 are provided with guide channels 3090. The upper tooth guard 304 is plugged into the first guide member 309 or the second guide member 306 through the guide pin 3040. The central rotating shaft 300 drives the first guide member 309 and the second guide member 306 to rotate, and drives the guide pin 3040 to slide along the guide channel 3090, so that the upper tooth guard 304 is telescoped. The upper tooth guard 304 can extend or retract the space between the first guide member 309 and the second guide member 306 to hang the hairpin 6.

[0125] The central rotating shaft 300 is an axis structure, which plays the role of a supporting skeleton, and is convenient for the installation of the first guide member 309 and the second guide member 306. The central rotating shaft 300 can receive an external driving force, be driven to rotate, and drive the first guide member 309 and the second guide member 306 to rotate; the first guide member 309 and the second guide member 306 are both coaxially arranged with the central rotating shaft 300, and are arranged in sequence along the axial direction of the central rotating shaft 300, with a certain distance between the two, which is adapted to the height of the upper tooth guard 304, so as to facilitate the installation of the upper tooth guard 304 between the first guide member 309 and the second guide member 306. The first guide member 309 and the second guide member 306 can both be disc structures, and the rotation speed on the same circumference is the same, so as to facilitate driving multiple upper tooth guards 304 to perform linear movements at the same time, extending or retracting. In order to reduce the overall volume of the winding device 30, the multiple upper tooth guards 304 are arranged into two groups, the multiple upper tooth guards 304 in one group are plug-connected with the first guide member 309 through the guide pin 3040, and the multiple upper tooth guards 304 in the other group are plug-connected with the second guide member 306 through the guide pin 3040, the first guide member 309 and the second guide member 306 rotate at the same time, and drive the multiple upper tooth guards 304 in the two groups to move, extend or retract at the same time; one end of the guide pin 3040 is fixedly connected to the upper tooth guard 304, and the other end is inserted into the guide channel 3090 of the first guide member 309 or the second guide member 306, and can move along the guide channel 3090, the first guide member 309 and the second guide member 306 rotate, and the guide pin 3040 moves along the guide channel 3090, thereby causing the upper tooth guards 304 to move, extend or retract.

[0126] The upper tooth guard gradually extends as the number of layers of the coil is wound. Each time a layer of the coil is wound, the upper tooth guard extends a first length. The first length is selected based on the thickness of a layer of the coil, and no specific requirements are made here.

[0127] The guide channel 3090 is in a spiral shape, with the center of the first guide member 309 or the second guide member 306 as the center, and is spirally arranged outward. The guide pin 3040 is inserted into the guide channel 3090. The first guide member 309 or the second guide member 306 rotates to push the guide pin 3040 to move. The guide pin 3040 performs reciprocating linear motion under the restriction of the outer layer guide component, so that the upper guard 304 performs reciprocating linear motion, that is, the upper guard 304 extends or retracts. There are multiple guide channels 3090, so that the guide pins 3040 on multiple upper guards 304 can be inserted into different guide channels 3090, so that the multiple upper guards 304 can act at the same time, extend or retract at the same time.

[0128] The upper tooth guard 304 is provided with a first groove matched with the coiled material rounding and holding device 31. The upper tooth guard 304 is a plate-like structure. The first groove is provided at the end of the upper tooth guard 304 that can extend to the outside of the outer layer guide assembly. The coiled material rounding and holding device 31 can be placed in the first groove to hold and fix the hairpin 6 located on the upper tooth guard 304. When installed, the plurality of upper tooth guards 304 are arranged along the circumference of the central shaft 300. The first grooves on each tooth guard are located on the same circumference to accommodate the coiled material rounding and holding device 31. In this embodiment, preferably, the shape of the first groove is an arc.

[0129] The above-mentioned outer guide assembly includes a rotating member 313 arranged on the central rotating shaft 300, a fixed connecting member 301 sleeved on the outside of the rotating member 313, a first connecting member 302 connected to the fixed connecting member 301, an outer guide member 303 connected to the first connecting member 302, a connecting sleeve 307 connected to the outer guide member 303 and a guide base 305 connected to the connecting sleeve 307. The rotating member 313, the fixed connecting member 301, the first connecting member 302, the outer guide member 303, the connecting sleeve 307 and the guide base 305 are all coaxially arranged with the central rotating shaft 300 and rotate around the axis of the central rotating shaft 300. The opposite surfaces of the outer guide member 303 and the guide base 305 are provided with a plurality of guide grooves. Each upper tooth guard 304 is arranged in a guide groove. The upper tooth guard 304 can move along the guide groove. The guide groove guides the movement of the upper tooth guard 304 so that the upper tooth guard 304 performs reciprocating linear motion.

[0130] The setting of the rotating member 313 enables the fixed connecting member 301 and the central rotating shaft 300 to rotate relative to each other. The central rotating shaft 300 contacts the inner side surface of the rotating member 313, and the fixed connecting member 301 contacts the outer side surface of the rotating member 313. There are multiple rotating members 313, which are arranged in sequence along the axial direction of the central rotating shaft 300. In the present embodiment, there are preferably two rotating members 313, which are respectively arranged at positions close to both ends of the fixed connecting member 301 to support the rotation of the fixed connecting member 301. The rotating member 313 can be a bearing, preferably a tapered roller bearing, which can provide axial and radial combined support forces at the same time, has good rigidity, and the paired tapered roller bearings arranged face to face can withstand a certain misalignment error.

[0131] The above-mentioned fixed connector 301 is a cylindrical sleeve structure, which is an I-shaped structure. The bearing is installed between the fixed connector 301 and the center shaft 300 by utilizing the cooperation between the shaft shoulder of the center shaft 300 and the fixed connector 301, and a locking nut and a bearing locking sleeve are provided at one end of the fixed connector 301 to fix the bearing; a first connector 302 is installed at the other end of the fixed connector 301, and the first connector 302 is connected to the fixed connector 301 by bolts and other connectors. In this embodiment, the first connector 302 can be a flange.

[0132] The above-mentioned outer guide member 303 is a cylindrical sleeve structure, which is sleeved on the central rotating shaft 300 and is located on the side of the first connecting member 302 facing the first guide member 309. One end of the outer guide member 303 is an open structure, and the inner diameter of this end is adapted to the outer diameter of the first connecting member 302, and can be sleeved on the first connecting member 302 and fixedly connected. A blocking member is provided at the other end of the outer guide member 303. The blocking member is a plate-like structure with a middle hole. The central rotating shaft 300 passes through the middle hole so that the outer guide member 303 can be installed on the central rotating shaft 300. A plurality of guide grooves are provided on one side surface of the blocking member facing the upper tooth 304. The guide grooves are arranged along the radial direction of the central rotating shaft 300, and the plurality of guide grooves are arranged in sequence along the circumferential direction of the blocking member. The plurality of guide grooves are preferably arranged at equal intervals. The upper tooth 304 is installed in the guide grooves. The first guide member 309 is installed on the side of the blocking member without the guide groove, and the blocking member cooperates with the shoulder of the central shaft 300 to fix the first guide member 309 on the central shaft 300, so that the first guide member 309 rotates with the central shaft 300. A through hole is provided on the bottom wall of the guide groove, and the upper tooth guard 304 on the outer guide member 303 is plug-connected with the first guide member 309 through a guide pin 3040, and the guide pin 3040 passes through the through hole and is plug-connected with the first guide member 309. The through hole is a strip hole, which is arranged along the length direction of the guide groove. The upper tooth guard 304 is driven by the first guide member 309 through the guide pin 3040 and performs a linear motion under the restriction of the guide groove. The guide pin 3040 can move along the through hole without interfering with the movement of the upper tooth guard 304.

[0133] The second guide member 306 is fixedly mounted on the end of the central shaft 300 by means of bolts and other connecting members. The guide base 305 is mounted on the central shaft 300 and is located on a side of the second guide member 306 where the guide channel 3090 is provided. The guide base 305 is provided between the upper tooth guard 304 and the second guide member 306. The guide base 305 is a disc-shaped structure. A plurality of guide slots are provided on one side of the guide base 305 facing the upper tooth guard 304. The guide slots are arranged along the radial direction of the central shaft 300, and the plurality of guide slots are arranged in sequence along the circumferential direction of the central shaft 300. The plurality of guide slots are preferably arranged at equal intervals. The spacing is set so as to accommodate multiple upper tooth guards 304, the upper tooth guards 304 are inserted into the guide slot and can slide along the guide slot, a through hole is provided on the bottom wall of the guide slot, the upper tooth guards 304 located on the guide base 305 are plugged and connected with the second guide member 306 through the guide pin 3040, the guide pin 3040 on the upper tooth guard 304 passes through the through hole and is plugged into the guide channel 3090 of the second guide member 306, the through hole is preferably a strip hole, the strip hole is set along the length direction of the guide slot, so that the upper tooth guard 304 can make a linear reciprocating motion along the guide slot, and will not interfere with the movement of the upper tooth guard 304.

[0134] The above-mentioned connecting sleeve 307 is installed on the central rotating shaft 300, one end of the connecting sleeve 307 is connected or abutted with the blocking member, and the other end is connected or abutted with the guide base 305, connecting the fixed connecting member 301, the first connecting member 302, the outer guide member 303, the connecting sleeve 307 and the guide base 305 together, and rotating at the same time. The setting of the connecting sleeve 307 ensures that there is a certain distance between the outer guide member 303 and the guide base 305, and an annular space centered on the central rotating shaft 300 is formed between the blocking member, the central rotating shaft 300 and the guide base 305. Multiple upper guard teeth 304 are located in the annular space. With the axis of the central rotating shaft 300 as the center, each upper guard tooth 304 is arranged along the radial direction of the central rotating shaft 300, and multiple upper guard teeth 304 are arranged in sequence along the circumference of the central rotating shaft 300; when the material is not being rolled, the upper guard teeth 304 are located in the annular space. When the material is needed to be rolled, the upper guard teeth 304 can be gradually extended out of the annular space to support the hairpins 6 of windings with multiple layers. When the rolling is completed, the upper guard teeth 304 are retracted back into the annular space to prepare for the next rolling.

[0135] The upper teeth 304 are located between the outer guide member 303 and the guide base 305. The number of guide slots on the outer guide member 303 and the guide base 305 is consistent, and the guide slots on the outer guide member 303 and the guide slots on the guide base 305 are staggered. One guide slot on the guide base 305 corresponds to the position between two adjacent guide slots on the outer guide member 303. The number of upper teeth 304 is the sum of the number of guide slots on the outer guide member 303 and the number of guide slots on the guide base 305, and the plurality of upper teeth 304 are all located on the circumference corresponding to the same position of the central shaft 300. The plurality of upper teeth 304 on the outer guide member 303 and the plurality of upper teeth 304 on the guide base 305 are staggered one by one. There is no need to set guide slots corresponding to the number of upper teeth 304 on the outer guide member 303 and the guide base 305, so that the overall structure of the winding device 30 is compact and the volume is small. In this embodiment, preferably, the number of upper teeth 304 corresponds to the number of hairpin groups required for one layer of winding.

[0136] The coil device 30 also includes a coil drive assembly 33, which includes a first coil drive member 330 and a second coil drive member 331. The first coil drive member 330 is connected to the central rotating shaft 300 to drive the central rotating shaft 300 to rotate, and the second coil drive member 331 is connected to the fixed connecting member 301 to drive the fixed connecting member 301 to rotate. In the present embodiment, preferably, the first coil drive member 330 and the second coil drive member 331 are both motors.

[0137] The central rotating shaft 300, the first guide member 309 and the second guide member 306 constitute the inner ring structure of the coil, and the first coil driving member 330 drives the entire inner ring structure of the coil to rotate, drives the central rotating shaft 300 to rotate, drives the first guide member 309 and the second guide member 306 to rotate, drives the guide pin 3040 located in the guide channel 3090 of the first guide member 309 and the guide pin 3040 located in the guide channel 3090 of the second guide member 306 to move, so that the upper guard tooth 304 located in the guide groove of the outer guide member 303 and the upper guard tooth 304 located in the guide groove of the guide base 305 slide at the same time, and the upper guard tooth 304 extends out or retracts into the annular space, thereby realizing the extension and retraction of the upper guard tooth 304.

[0138] The fixed connecting member 301, the first connecting member 302, the outer guide member 303, the connecting sleeve 307 and the guide base 305 constitute the outer ring structure of the coiling material. The second coiling material driving member 331 drives the outer ring structure of the coiling material to rotate, and drives the fixed connecting member 301 to rotate, so that the first connecting member 302, the outer guide member 303, the connecting sleeve 307 and the guide base 305 rotate synchronously to coil the material, and the plurality of hairpins 6 located on the hairpin discharge device 20 are sequentially hung on the upper tooth 304, and each hairpin 6 is in contact with the outer wall of the outer guide member 303 and the outer wall of the guide base 305. During this process, the first coil driving member 330 also drives the central shaft 300 to rotate, and the first guide member 309, the outer guide member 303, the second guide member 306 and the guide base 305 rotate synchronously. The first guide member 309 and the outer guide member 303 are relatively stationary, and the second guide member 306 and the guide base 305 are relatively stationary, so that in the process of hanging the hairpin 6 on the upper tooth 304, each upper tooth 304 remains stationary and no longer moves, so that the coil closing and clamping device 31 cooperates with the upper tooth 304 to fix the hairpin 6 on the coiling device 30.

[0139] The above-mentioned coil winding and clamping device 31 includes a clamping component and a clamping drive component 312 connected to the clamping component, the clamping drive component 312 drives the clamping component to move relatively close to or away from the coil device 30, and clamps or releases multiple hairpins 6 located on the coil device 30; wherein the clamping component includes a clamping member 311 and clamping rods 310 respectively arranged at both ends of the clamping member 311, the other ends of the two clamping rods 310 are connected to the clamping drive component 312, the two clamping rods 310 are arranged to intersect, and the ends of the two clamping rods 310 connected to the clamping member 311 are arranged tangent to the circumference formed by the first grooves on each upper guard tooth 304, so that the clamping member 311 located between the two clamping rods 310 can be located in the first grooves of the multiple upper guard teeth 304 within the coverage range of the two clamping rods 310, and the multiple hairpins 6 are clamped and fixed at the same time, and the two clamping rods 310 and the clamping member 311 form an approximately triangular structure.

[0140] There are two coiling and rounding clamping devices 31 symmetrically arranged on both sides of the coiling device 30 , which can clamp all the hairpins 6 on the coiling device 30 and fix all the hairpins 6 on the coiling device 30 .

[0141] The above-mentioned clamping drive component 312 can be a cylinder, and the clamping component is installed on the telescopic rod of the cylinder. Through the extension and retraction of the telescopic rod, the clamping component can be relatively close to or away from the winding device 30, so as to clamp the multiple hairpins 6 located on the winding device 30 when winding the material and release each hairpin 6 when inserting the wire.

[0142] The above-mentioned holding member 311 is an elastic member. In this embodiment, the holding member 311 is a spring. In order to prevent the holding member 311 from scratching the paint of the hairpin 6, a plastic tube is wrapped around the outer periphery of the holding member 311. Preferably, the holding member 311 is set to be in a stretched state so as to apply a force to the hairpin 6 to hold and fix it.

[0143] The coil guide device 35 includes a stripping piece, which is arranged on a clamping rod 310 close to one side of the card issuing turnover feeding mechanism 2. The stripping piece is used to strip the hairpins 6 on the card issuing discharge device 20 one by one, and the movement of the card issuing discharge device 20 and the rotation of the coiling device 30 are utilized to wind the stripped hairpins 6 onto the coiling device 30. The stripping piece is a rod-shaped structure, one end of which is fixedly connected to the free end of the clamping rod 310 and extends outward along the axial direction of the clamping rod 310. The axial direction of the stripping piece is arranged to intersect with the moving direction of the card issuing discharge device 20, and the free end of the clamping rod 310 is arranged opposite to the moving direction of the card issuing discharge device 20. The clamping rod 310 can extend into the hairpin The stripping piece is located between the two rows of slots 201 of the card discharge device 20, and slides between the two rows of slots 201 during the movement of the card discharge device 20. The side of the stripping piece facing the winding device 30 has a first inclined surface, so that the width of the stripping piece gradually increases from the free end to the other end. As the card discharge device 20 moves, the hairpin 6 suspended on the slot 201 moves along the first inclined surface, is stripped from the slot 201, and is wound on the upper guard tooth 304 by the winding device 30; a second inclined surface is provided on the side opposite to the first inclined surface of the stripping piece, and the second inclined surface is arranged parallel to the card discharge device 20, and the contact between the second inclined surface and the card discharge device 20 is surface contact, which facilitates the sliding of the stripping piece relative to the card discharge device 20.

[0144] The number of stripping pieces corresponds to the number of card issuing turnover feeding mechanisms 2. Each stripping piece cooperates with the card issuing discharge device 20 for transporting the cards 6 on the card issuing turnover feeding mechanism 2 to strip the cards 6 on the card issuing discharge device 20 onto the winding device 30. In the present embodiment, there are two card issuing turnover feeding mechanisms 2, which are arranged on both sides of the winding device 30, and there are two stripping pieces, which are respectively installed on the two clamping components.

[0145] Further optimization scheme, such as Fig.16As shown, the coiling mechanism 3 also includes a coil feeding stopper 34, which cooperates with the card discharging device 20 to sort the hairpins 6 located on the card discharging device 20. The coil feeding stopper 34 is a rod-shaped structure with a certain length, which is arranged along the moving direction of the card discharging device 20, and the coil feeding stopper 34 corresponds to the position of the card discharging device 20. The coil feeding stopper 34 can be inserted into the card discharging device 20. 0 is located between the two rows of slots 201, on the outside of the hairpin 6, and the hairpin 6 is located between the coil feeding limiter 34 and the hairpin discharge device 20. Before coiling, the multiple hairpins 6 suspended on the slots 201 are combed and smoothed so that the multiple hairpins 6 are arranged neatly and limited so that they will not fly out of the hairpin discharge device 20, so that the hairpins located on the hairpin discharge device 20 enter the coiling device 30 one by one, so that the hairpins 6 are wound on the coiling device 30 when coiling.

[0146] The number of the coil feeding limiters 34 is consistent with the number of the peeling parts. In the present embodiment, there are two coil feeding limiters 34, which are arranged on both sides of the coil device 30. The coil feeding limiters 34 can be installed on the clamping drive assembly 312, and the actions of the coil feeding limiters 34 and the clamping assembly do not interfere with each other.

[0147] In order to be able to smoothly insert the winding wound and woven on the winding device 30 into the wire insertion mechanism 4, the winding mechanism 3 also includes a wire pressing device 32, which is coaxially arranged with the winding device 30, and is arranged on the outer peripheral side of the winding device 30. The wire pressing device 32 contacts the top of the annular winding on the winding device 30, limits the radial direction of the annular winding on the winding device 30, prevents the hairpin 6 from rebounding radially outward, and applies force to the annular winding. The wire pressing device 32 moves along the axial direction of the winding device 30 to press the annular winding into the wire insertion mechanism 4 for wire insertion.

[0148] like Fig. 9 and Fig.17As shown, the above-mentioned wire pressing device 32 includes a wire pressing assembly 320 and a wire pressing driving assembly 321 connected to the wire pressing assembly 320, and the wire pressing driving assembly 321 drives the wire pressing assembly 320 to move, close to or away from the annular winding, so as to insert the annular winding into the wire insertion mechanism 4, and restore it to its original position after the wire is inserted; the wire pressing assembly 320 includes a winding contact piece 3200 and a radial limit piece 3201 connected to the winding contact piece, and the winding contact piece 3200 is fixedly connected to the radial limit piece 3201, and the radial limit piece 3201 is arranged on a side surface of the winding contact piece 3200 facing the annular winding, and the winding contact piece 3200 Coaxially arranged with the radial limit piece 3201, the winding contact piece 3200 is an annular plate structure, and its annular area is adapted to the top area of ​​the annular winding, so that the winding contact piece 3200 contacts the top of the annular winding and applies pressure to the annular hairpin 6. The radial limit piece 3201 is an annular columnar structure, and the radial limit piece 3201 is arranged along the circumference of the winding contact piece 3200, and its diameter is adapted to the outer diameter of the winding contact piece 3200, and it contacts the outer side surface of the annular winding to limit its radial outer side rebound. The winding contact piece 3200 is fixedly connected to the radial limit piece 3201, and the fixed connection method is preferably integrally formed.

[0149] The shape of the side surface of the winding contact piece 3200 facing the annular winding is adapted to the shape of the top end of the annular winding, and has a plurality of protrusions and depressions arranged at intervals, so that the side surface of the winding contact piece 3200 has a wavy structure, corresponding to the shape of the top end of the annular winding. The winding contact piece 3200 is in full contact with the top end of the annular winding so as to apply pressure to the annular winding and avoid deformation of the hairpin 6 during the force application process.

[0150] The wire crimping drive assembly 321 includes a connected power part and a wire crimping transmission part. The wire crimping assembly 320 is connected to the wire crimping transmission part. The power part drives the wire crimping transmission part to move, so that the wire crimping assembly 320 moves up and down. The power part can be a motor, and the wire crimping transmission part can be a screw transmission structure. The motor is connected to the screw transmission structure through a gear transmission structure to transmit power.

[0151] In order to facilitate the cooperation between the winding device and the wire insertion mechanism 4 for wire insertion, the winding device 30 also includes a movable support assembly 308, which is detachably arranged on the side of the second guide member 306 facing the wire insertion mechanism 4. After the movable support assembly 308 is separated from the second guide member 306, the movable support assembly 308 can cooperate with the wire insertion mechanism 4 to guide the wire arrangement and insertion, and also enables the winding device and the wire insertion mechanism 4 to be coaxially arranged when inserting the wire, and the annular winding can be accurately inserted into the stator core 7. After the movable support assembly 308 is separated from the wire insertion mechanism 4, the movable support assembly 308 can be combined with the second guide member 306.

[0152] The movable support assembly 308 includes a support body and a plurality of lap joints 3080 movably arranged on the support body, wherein the plurality of lap joints 3080 are arranged in sequence along the circumferential direction of the support body, and the lap joints 3080 are rotatably arranged on the support body through a reset member, and each lap joint 3080 can rotate relative to the support body; wherein the support body is an annular structure, comprising a first structure, a second structure and a third structure connected in sequence, the first structure, the second structure and the third structure are coaxially arranged, the diameter of the first structure is greater than the diameter of the second structure, and the diameter of the third structure is greater than the diameter of the second structure, so that the support body is a structure with large diameters at both ends and a small diameter in the middle, the first structure can be an equal-diameter structure, the second structure can also be an equal-diameter structure, and the third structure can be a non-equal-diameter structure, and the diameter gradually increases along the direction from one end of the third structure connected to the second structure to the other end.

[0153] A plurality of lap joints 3080 are arranged in sequence along the circumferential direction of the second structure, a plurality of mounting through holes are provided on the side wall of the second structure, a mounting shaft is provided in the mounting through hole, the lap joint 3080 is installed in the mounting through hole through the mounting shaft, a reset member is installed on the mounting shaft, so that the initial state of the lap joint 3080 is: one end of the lap joint 3080 is located on the inner side of the second structure, and the end protrudes from the inner side wall of the second structure, and the other end of the lap joint 3080 is located on the outer side of the second structure, and the end protrudes from the outer side wall of the second structure; when one end of the lap joint 3080 is subjected to force to push the lap joint 3080, the lap joint 3080 rotates around the mounting shaft, and the reset member is compressed, and when the external force disappears, the lap joint 3080 is reset under the action of the reset member.

[0154] In this embodiment, the bridging member 3080 is preferably an arc-shaped structure, and the reset member is preferably a torsion spring.

[0155] The second guide member 306 is provided with a hanging groove 3060, and a connecting column is fixedly provided on the free end surface of the second guide member 306. The outer surface of the connecting column is recessed inward to form the hanging groove 3060. The outer diameter of the connecting column is adapted to the inner diameter of the second structure. When the connecting column is inserted into the supporting body, it supports one end of the lap joint 3080 located inside the supporting body, the reset member is compressed, and the lap joint 3080 rotates outward. When the hanging groove 3060 on the connecting column corresponds to the position of each lap joint 3080, the external force supporting the lap joint 3080 disappears, and the lap joint 3080 returns to its original position. The end of the lap joint 3080 located inside the supporting body is inserted into the hanging groove 3060, and the second guide member 306 stops the insertion action, and the lap joint 3080 is plugged into the hanging groove 3060 to enable the movable support assembly 308 to be installed on the second guide member 306 and suspended at the end of the second guide member 306; when pressure is applied to the end of the lap joint 3080 located on the outside of the support body, the lap joint 3080 is driven to rotate, and the end rotates inward, and the end of the lap joint 3080 located on the inside of the support body rotates outward, and the end is disengaged from the hanging groove 3060, and the movable support assembly 308 is disengaged from the second guide member 306, thereby realizing the installation and disengagement of the movable support assembly 308 and the second guide member 306, and also facilitating the use of the movable support assembly 308 in conjunction with the wiring mechanism 4.

[0156] The flat wire motor automatic wire insertion device also includes a coil lifting device 36, which is connected to the coil mechanism 3 and drives the coil mechanism 3 to lift and lower, so that the coil mechanism 3 can cooperate with the card discharging device 20 at different positions to wind the card 6. The coil lifting device 36 is a lead screw transmission structure, and multiple lead screw transmission structures are arranged in parallel, all connected to the coil mounting bracket of the coil mechanism 3, and the lead screw transmission structure is driven by the motor and the gear transmission structure to realize the rising and falling action of the coil mechanism 3 to receive the card 6 on the card discharging device 20 at different positions on the card circulation feeding mechanism 2.

[0157] like Figure 8 , Figure 18-Figure 20 As shown, the above-mentioned wire insertion mechanism 4 includes a wire management and insertion device 40, and the wire management and insertion device 40 is arranged opposite to the winding mechanism 3. In this embodiment, the wire management and insertion device 40 and the winding mechanism 3 are arranged opposite to each other in the vertical direction, and the winding mechanism 3 is arranged above the wire management and insertion device 40. The winding device 30 is coaxially arranged with the wire management and insertion device 40 so as to insert the hairpin into the stator core 7.

[0158] The wire management and insertion device 40 includes a wire management base 400, a plurality of lower teeth 401 arranged on the wire management base 400, and a wire management guide assembly 403 connected to the lower teeth 401, wherein the arrangement of the wire management base 400 facilitates the installation of the plurality of lower teeth 401, and the wire management base 400 is provided with a plurality of guide grooves for containing the lower teeth 401, each lower teeth 401 is arranged in a guide groove, and the plurality of lower teeth 401 are driven by the wire management guide assembly 403 to move simultaneously, and the lower teeth 401 can slide along the guide groove and simultaneously extend, extend or retract the guide groove, manage and guide the wires during the wire insertion process, and tidy up the wire feet of the hairpin 6 for subsequent insertion onto the stator core 7.

[0159] The above-mentioned cable management base 400 is a disc-shaped structure, the guide groove is arranged along the radial direction of the cable management base 400, and multiple guide grooves are arranged along the circumferential direction of the cable management base 400. Therefore, multiple lower guard teeth 401 are also arranged in sequence along the circumferential direction of the cable management base 400, and the number of guide grooves is consistent with the number of lower guard teeth 401, and the number of lower guard teeth 401 is consistent with the number of upper guard teeth 304; the number of the cable management bases 400 is two, and when the two cable management bases 400 are arranged, the side surfaces provided with the guide grooves are arranged opposite to each other, and the multiple guide grooves on the two cable management bases 400 are arranged in a Correspondingly, the corresponding guide groove constructs an accommodating channel, so that the lower tooth guard 401 can be placed in the accommodating channel and slide along the accommodating channel. In the present embodiment, the two wire management bases 400 are arranged up and down along the vertical direction, and the wire management guide assembly 403 is arranged on the lower wire management base 400. The wire management base 400 and the wire management guide assembly 403 are arranged coaxially. A through hole is provided on the bottom wall of the guide groove of the lower wire management base 400. The through hole is a strip hole, so that the accommodating channel is connected with the wire management guide assembly 403, and the movement of the lower tooth guard 401 is guided at the same time.

[0160] The above-mentioned wire management guide assembly 403 includes a wire management guide member and a wire management guide driving member 41 connected to the wire management guide member. The wire management guide member is provided with a wire management guide channel. The lower tooth guard 401 is plugged and connected to the wire management guide channel through a guide pin. The guide pin passes through the through hole and is plugged and connected to the wire management guide member. The wire management guide driving member 41 drives the wire management guide member to rotate, drives the guide pin to move, and then makes the lower tooth guard 401 move in a straight line, driving the lower tooth guard 401 to extend and retract. The wire management guide can be rotatably installed on the wire plug-in installation bracket via a bearing, or a side of the wire management base 400 that is not provided with a guide groove is provided with a mounting groove, and the wire management guide can be installed in the mounting groove via a bearing, so that the wire management guide can rotate relative to the wire management base 400, and the side of the wire management guide that is provided with a guide channel is arranged facing the wire management base 400, and the guide channel is connected to each guide groove through a through hole. The wire management guide channel is vortex-shaped, and the guide pin is inserted into the wire management guide channel through the through hole and can slide along the wire management guide channel. The wire management guide rotates, and the guide pin is pushed and moves along the through hole to make a linear reciprocating motion, thereby causing the lower tooth guard 401 to move along the guide groove and retract.

[0161] The cable guide driving member 41 can be a motor, a gear is installed on the output shaft of the motor, and gear teeth are arranged on the outer peripheral side of the cable guide. Power is transmitted through the meshing transmission of the gears and the gear teeth to drive the cable guide to rotate.

[0162] The lower guard teeth 401 are plate-like structures. The width of one end of the lower guard teeth 401 that contacts the hairpin 6 is smaller than the width of the other end, that is, the two sides of a part close to the end are recessed inward, so that the two sides of the lower guard teeth 401 are stepped structures. After the two adjacent lower guard teeth 401 are extended and retracted, the two adjacent recesses form a wire hole 402, so that the inside of the slot of the hairpin 6 can pass through. The wire hole 402 arranges the wires of the multiple hairpins 6 constituting the annular winding and guides the movement of the hairpins 6. The multiple wire holes 402 correspond to the various slots of the stator core 7 located below the wire arrangement and insertion device 40, so that each hairpin 6 can be plugged into the stator core 7 for easy insertion.

[0163] The wire insertion mechanism 4 also includes a wire management drive device, which is connected to the wire management and insertion device 40. The wire management drive device drives the wire management and insertion device 40 to move and lift, so that the wire management and insertion device 40 can be relatively close to or away from the winding device 30, so that the hairpin 6 on the winding device 30 can be inserted into the wire hole 402 for wire management and insertion. The wire management drive device 41 can be a screw transmission structure, a cylinder, or other structures that can realize the linear motion of the wire management and insertion device 40, which can be selected according to actual needs, and no specific requirements are made here.

[0164] In order to facilitate the insertion of the hairpin 6 into the stator core 7, the stator core 7 is conveyed to the winding mechanism 3 and the wire insertion mechanism 4, and the winding mechanism 3 and the wire insertion mechanism 4 do not move, thereby reducing the winding transfer after winding and weaving, realizing fast wire insertion after the hairpin is loaded, and shortening the overall wire insertion cycle. The flat wire motor automatic wire insertion equipment also includes a core conveying mechanism 5, which conveys the stator core 7 to the bottom of the wire insertion mechanism 4 for wire insertion, and conveys the stator core 7 after wire insertion to the next process.

[0165] like Figure 8 , Fig. 20 and Fig.21 As shown, the core conveying mechanism 5 includes a conveying line body 50, a core turnover tray 52 arranged on the conveying line body 50, and a core jacking device 51 and a tray jacking device 53 arranged opposite to the wire insertion mechanism 4. The core jacking device 51 and the tray jacking device 53 are coaxially arranged. The core turnover tray 52 containing the stator core 7 is transported to the core jacking device 51 by the conveying line body 50, the tray jacking device 53 lifts the core turnover tray 52, and the core jacking device 51 lifts the stator core 7 to lift the core for wire insertion, so as to avoid the core turnover tray 52 interfering with the movement of the card during the wire insertion process.

[0166] The above-mentioned conveyor line body 50 includes two parallel conveyor belts and a motor driving the conveyor belts to rotate. According to actual needs, the number of conveyor line bodies 50 can be one or more. Multiple conveyor line bodies 50 can be arranged in parallel or intersectingly to convey the stator core 7 at the loading location to the wire insertion mechanism 4 and the winding mechanism 3. The core turnover tray 52 is placed on the conveyor line body 50 and transported by the conveyor line body 50. The core turnover tray 52 is used to place the stator core 7 so that the stator core 7 can be transported to the wire insertion mechanism 4 and the winding mechanism 3 by the conveyor line body 50. One or more core turnover trays 52 can be placed on the conveyor line body 50, and multiple stator cores 7 can be transported at the same time.

[0167] The core turnover tray 52 is provided with a positioning groove 520 to position the stator core 7 placed on the core turnover tray 52. ​​Specifically, the core turnover tray 52 includes a first supporting member and a second supporting member, the first supporting member and the second supporting member are coaxially arranged, and the second supporting member is arranged on one side of the first supporting member and is fixedly connected to the first supporting member, the first supporting member is a plate-like structure with a through hole, so that the core lifting device 51 passes through the first supporting member and contacts the stator core 7 located on the second supporting member to lift the stator core 7; in order to enable the first supporting member to be accurately lifted by the tray lifting device 53, a positioning hole 521 is provided on the first supporting member, and the positioning hole 521 cooperates with the tray lifting device 53, so that the first supporting member can be accurately positioned with the tray lifting device 53, and the number of the positioning holes 521 is at least one, and can be multiple, which is selected according to actual needs, and no specific requirements are made here.

[0168] The second supporting member is an annular structure with a certain height. The outer diameter of the second supporting member is larger than the outer diameter of the stator core 7, and the inner diameter of the second supporting member is smaller than the outer diameter of the stator core 7 and larger than the inner diameter of the stator core 7. A positioning groove 520 is provided at the free end of the second supporting member. The positioning groove 520 is connected to the interior of the second supporting member. The positioning groove 520 is arranged along the circumference of the second supporting member, so that the cross-sectional shape of the second supporting member is stepped. When the stator core 7 is placed on the second supporting member, it is placed in the positioning groove 520. The positioning groove 520 positions the stator core 7 so that the stator core 7 and the second supporting member are coaxially arranged.

[0169] The above-mentioned pallet lifting device 53 includes a pallet lifting drive assembly, a support plate connected to the pallet lifting drive assembly, and a first positioning member 530 arranged on the support plate. The first positioning member 530 is plugged into and matched with the iron core turnover pallet 52. The first positioning member 530 is inserted into the positioning hole 521 for positioning. The pallet lifting drive assembly drives the support plate to move and lift the iron core turnover pallet 52. The first positioning member 530 is a positioning column, which is fixedly mounted on one side surface of the support plate. The support plate has a through hole, which is coaxially arranged with the iron core turnover tray 52 and will not interfere with the action of the iron core lifting device 51. The lifting drive assembly is connected to the other side of the support plate. The lifting drive assembly can be a screw transmission structure, or a cylinder, or other structures that can realize linear motion of the support plate. It is selected according to actual needs. No specific requirements are made here. In the present embodiment, the lifting drive assembly includes a guide shaft and a cylinder. There are two cylinders, which are symmetrically arranged on both sides of the support plate to apply force to the support plate from two directions. The guide shafts are arranged in sequence along the circumference of the support plate to guide the rise and fall of the support plate. The guide shafts are connected to the mounting frame through guide bearings.

[0170] The core lifting device 51 includes a core lifting drive assembly, a support ring connected to the core lifting drive assembly, and a second positioning member arranged on the support ring. The second positioning member is inserted into and matched with the slot of the stator core 7 for positioning. The core lifting drive assembly drives the support ring to move and lift the stator core 7. The number of the second positioning member is at least one, and the plurality of second positioning members are all arranged on one side of the support ring facing the stator core 7. The core lifting drive assembly is connected to the other side of the support ring. The inner diameter of the support ring is not less than the inner diameter of the stator core 7, and the outer diameter of the support ring is not greater than the outer diameter of the stator core 7, so as to contact the stator core 7 and support it. The second positioning member is a plate-like structure, and its shape is adapted to the cross-sectional shape of the slot of the positioning core, and its size is smaller than the size of the slot of the stator core 7. When the stator core 7 is placed on the support ring, the second positioning member can be inserted into the slot of the stator core 7 to position the stator core 7, so that the stator core 7 is coaxially arranged with the support ring for subsequent wiring insertion.

[0171] The pallet lifting drive assembly can be a screw transmission structure, a cylinder, or other structures that can realize linear motion of the support ring for lifting and lowering. The selection is made according to actual needs and no specific requirements are made here.

[0172] The flat wire motor automatic plugging device also includes a control device and multiple sensors, which are electrically connected to the control device. The multiple sensors are respectively arranged on the feeding mechanism 1, the card issuing turnover feeding mechanism 2, the winding mechanism 3, the plugging mechanism 4 and the iron core conveying mechanism 5 to detect relevant information and transmit the detected information to the control device. The control device controls the feeding mechanism 1, the card issuing turnover feeding mechanism 2, the winding mechanism 3, the plugging mechanism 4 and the iron core conveying mechanism 5 to act accordingly, so as to realize automatic plugging of the flat wire motor automatic plugging device.

[0173] When the automatic plug-in device for flat-wire motors is working, the required hairpins 6 of various lengths and types are prepared according to the requirements of the stator winding to be prepared; the feeding mechanism 1 is set for storage according to the length, type and arrangement of the hairpins 6 in each layer of the stator winding to be prepared, and the hairpins 6 required for one layer of winding are placed on a feeding mechanism 1. In this embodiment, a stator structure with 4 layers of windings, each layer of winding including 24 wide hairpins and 24 narrow hairpins is taken as an example for explanation. For the convenience of layout, the automatic plug-in device for flat-wire motors has two sets of hairpin turnover feeding mechanisms 2, which are arranged on both sides of the winding mechanism 3, and have two sets of feeding mechanisms 1. Each set of feeding mechanisms 1 cooperates with a set of hairpin turnover feeding mechanisms 2 to realize the feeding and transmission of hairpins 6, and each set of feeding mechanisms 1 stores the hairpins required for two layers of windings;

[0174] The feeding is performed manually or automatically, and hairpins 6 of various lengths and types are hung on the feeding mechanism 1. A plurality of hairpins 6 of one type are placed on one feeding separation structure, and hairpins 6 of different types are placed on different feeding separation structures. For example, two types of hairpins required for the first layer of winding are respectively hung on two feeding separation structures arranged in one column of a set of feeding mechanism 1, two types of hairpins required for the third layer of winding are respectively hung on two feeding separation structures arranged in another column, two types of hairpins required for the second layer of winding are respectively hung on two feeding separation structures arranged in one column of another set of feeding mechanism 1, and two types of hairpins required for the fourth layer of winding are respectively hung on two feeding separation structures arranged in another column;

[0175] On a feeding separation structure, a plurality of hairpins 6 are arranged in sequence along the storage feeding device 10, and are all supported by the hairpin support assembly. According to the type and width of the hairpins 6, the distance between the two side supports 101 is adjusted so that the turning portion of the hairpins 6 contacts the support guide 100, and the inside of the two grooves of the hairpins 6 contacts the side supports 101, so as to avoid misplacing hairpins 6 of different types. Due to the inclined setting of the hairpin support assembly, the hairpins 6 can slide along the hairpin support assembly toward the discharging end under the action of their own gravity and the vibration of the storage drive assembly 102, and slide to the discharging end of the hairpin support assembly in sequence.

[0176] Adjust the material dividing device 12. According to the number of the material dividing devices 12, a material dividing device 12 is set at the discharge end of each feeding separation structure, and the feeding separation structure is connected with the lifting device 13. Alternatively, a material dividing device 12 is set at the discharge end of two or more feeding separation structures. The control device sets the pre-reached position of each material dividing device 12 and the swing speed of the material dividing device 12 through a program. The material dividing drive component 120 drives the swing component 121 to swing, thereby causing the material dividing guide component 122 to swing to reach the designated card issuing position to be selected and reselect the feeding separation structure according to the card issuing arrangement order after cutting the material;

[0177] When the hairpin 6 slides to the discharge end of the support guide 100, the hairpin 6 enters the receiving groove 112 of the cutting member 111, and the cutting drive assembly 110 is actuated to drive the cutting member 111 to move downward (toward the branch guide 104), and the receiving groove 112 is offset from the end of the support guide 100, and the hairpin 6 in the receiving groove 112 falls on the branch guide 104, and slides along the branch guide 104 to enter the corresponding material dividing device 12;

[0178] The hairpin 6 that falls on the material distribution guide assembly 122 slides along the material distribution guide assembly 122 and is transferred to the lifting device 13;

[0179] When both the wide hairpin and the narrow hairpin reach the designated position, the lifting device 13 is activated, and the rotation speed of the lifting drive assembly 130 is set, so that the hairpin 6 sliding in from the material distribution guide assembly 122 falls on a baffle 132 of the transmission assembly 131, and moves with the movement of the baffle 132, and the hairpin 6 is lifted upward. At the highest point of the lifting device 13, as the transmission assembly 131 continues to rotate, the hairpin 6 falls on the auxiliary feeding device 14 under the action of its own gravity, and slides along the feeding assembly 140, and the booster assembly 143 moves the hairpin 6 sliding along the feeding slideway and enters the hairpin turnover feeding mechanism 2; after the sensor detects that the hairpin reaches the hairpin turnover feeding mechanism 2, the auxiliary feeding device 14 is activated, and the adjusting member 142 adjusts the distance between the two guide plates 141, so that the hairpin of another width slides into the lifting device 13 through the auxiliary feeding device 14, and is lifted and fed into the hairpin turnover feeding mechanism 2. When the card 6 slides along the feeding slideway, the guide plate 141 guides the card 6 and prevents the card 6 from being mistaken, thereby preventing the card 6 of different pitch types from entering the card circulation feeding mechanism 2 .

[0180] The hairpins 6 sliding out of the feeding slide fall on the hairpin discharging device 20 and hang on the slot 201. When the sensor detects that both hairpins have reached the hairpin discharging device 20, the hairpin discharging device 20 moves horizontally and steps forward by a distance of two slots 201 to prepare to receive another group of hairpins; each group of hairpins 6 is received in sequence, so that each group of hairpins 6 is arranged in a row on the hairpin discharging device 20. After all the hairpins in a row are arranged, the hairpin discharging device 20 is driven to move; the hairpin discharging device 20 can receive hairpins 6 on multiple feeding slides at the same time, so that the hairpins 6 falling on the hairpin discharging device 20 can be arranged in a single form or in a group form;

[0181] The guide drive power assembly 212 is actuated to drive the guide transmission assembly 211 to rotate, so that the hairpin discharge device 20 moves along the guide assembly 210, and the coil feeding limiter 34 is inserted between the two rows of slots 201 of the hairpin discharge device 20, so that the multiple hairpins 6 suspended on the slots 201 are arranged in a straight line, rather than being arranged front and back on the slots 201 and unevenly arranged, and at the same time, the hairpins 6 are blocked to prevent the hairpins 6 from flying out of the slots 201 during the coiling process;

[0182] The card discharging device 20 moves to the coiling mechanism 3 and waits at the coiling waiting position. Another card discharging device 20 on the same layer arrives at the loading position and repeats the above steps to load the material.

[0183] The coiling and rounding clamping device 31 and the coiling device 30 act at the same time, the clamping drive assembly 312 acts, and drives the clamping assembly to move toward the coiling device 30, and the clamping member 311 is inserted into the first groove of the upper tooth 304 of the coiling device 30, and the pressing rod 310 is set along the direction tangential to the coiling device 30. At the same time, the first coiling drive member 330 acts to drive the central shaft 300 to rotate, so that the first guide member 309 and the second guide member 306 rotate at the same time, and the guide pin 3040 is pushed to move along the guide channel 3090, thereby driving the upper tooth 304 to move. The upper tooth 304 is restricted by the grooves on the outer guide member 303 and the guide base 305, so that the upper tooth 304 performs a linear reciprocating motion, moves along the groove, and extends out of the space formed by the outer guide member 303 and the guide base 305, and the upper tooth 304 extends out of the required position of the first layer of winding;

[0184] The outermost rotation speed of the coiling device 30 is set to be compatible with the moving speed of the card discharging device 20. The first coiling drive member 330 and the second coiling drive member 331 act simultaneously to drive the inner ring structure composed of the central shaft 300, the first guide member 309 and the second guide member 306 and the outer ring structure composed of the rotating member 313, the fixed connecting member 301, the first connecting member 302, the outer guide member 303, the connecting sleeve 307 and the guide base 305 to rotate simultaneously, and the stripping member is inserted into the card discharging device 20. With the movement of the hairpin discharging device 20, the hairpin 6 moves along the first inclined surface of the stripping member, and the hairpin 6 gradually approaches the outer wall of the outer guide member 303, until the hairpin 6 is hung on the upper guard teeth 304 and is located in the hanging groove 3060 formed by two adjacent upper guard teeth 304. With the movement of the hairpin discharging device 20 and the rotation of the outer guide member 303, multiple hairpins 6 on the hairpin discharging device 20 are sequentially hung on the upper guard teeth 304, and are wound and woven to construct a layer of winding structure;

[0185] After the first layer of winding is completed, the outer ring structure stops rotating, the first winding drive member 330 is actuated, so that the central shaft 300, the first guide member 309 and the second guide member 306 are rotated, and the upper guard teeth 304 are extended again to reach the required position for loading the second layer of winding. At the same time, the card discharge device 20 carrying the card required for the second layer of winding arrives at the winding waiting position, and the above steps are repeated. The card discharge device 20 on the other side of the winding device 30 is actuated to wind and weave the second layer of winding structure;

[0186] Repeat the above steps in sequence until the multi-layer winding structure is wound and woven on the coiling device 30 to construct a winding structure;

[0187] After the material is rolled, the first material rolling driving member 330 and the second material rolling driving member 331 drive the outer ring structure and the inner ring structure to rotate simultaneously, so that the upper guard teeth 304 and the lower guard teeth 401 are aligned;

[0188] The wire management driving device is actuated to drive the wire management plugging device 40 to rise, until the wire management plugging device 40 rises to the lower side of the upper guard teeth 304, and the wire management guide driving member 41 is actuated to drive the wire management guide member 403 to rotate, so that the guide pin inserted into the guide channel of the wire management guide member 403 moves, thereby causing the multiple lower guard teeth 401 to move along the guide groove, and the multiple lower guard teeth 401 extend out of the guide groove at the same time, and the lower guard teeth 401 move to the outer wall of the outer layer guide member 303;

[0189] The wire pressing drive assembly 321 is actuated to drive the wire pressing assembly 320 to descend, and the wire pressing drive assembly 320 contacts the top of the annular winding and presses against the hairpin 6, and the winding contact piece 3200 contacts and fits with the top of the annular winding to perform axial limiting, and the radial limiting piece 3201 contacts the circumferential side of the top of the winding to perform radial limiting;

[0190] The wire management drive device is actuated to drive the wire management and plugging device 40 to descend until it is flush with the lower tooth guard 401 and the movable support assembly 308. The wire management guide drive member 41 is actuated to drive the wire management guide member 403 to rotate, so that the lower tooth guard 401 continues to extend until the lower tooth guard 401 contacts the lap joint 3080 and applies pressure to the lap joint 3080. The lap joint 3080 rotates, and the movable support assembly 308 is disengaged from the second guide member 306. The lower tooth guard 401 abuts against the movable support assembly 308. The wire feet of the hairpin 6 are located in each wire passing hole 402. The wire management drive device is actuated to drive the wire management and plugging device 40 to descend. The lower tooth guard 401 drives the movable support assembly 308 to descend, and the hairpin 6 is straightened until the wire feet of the hairpin 6 are at the end, and the wire management drive device stops operating.

[0191] During the above-mentioned feeding and winding process, the core conveying mechanism 5 is actuated to convey the stator core 7 without the wire inserted, and the stator core 7 is placed on the core turnover tray 52 and located in the positioning groove 520 to position the stator core 7; the conveying line body 50 is actuated to transport the core turnover tray 52 containing the stator core 7 to the bottom of the wire arrangement and insertion device 40, and the tray lifting device 53 is actuated, and the tray lifting drive assembly drives the support plate to move upward, so that the first positioning member 530 is inserted into the positioning hole 521 of the core turnover tray 52, and the core turnover tray 52 is lifted and positioned; the core lifting device 51 is actuated, and the core lifting drive assembly drives the support ring to move upward to contact the stator core 7, and the second positioning member is inserted into the groove of the stator core 7 to position the stator core 7, and at the same time The iron core 7 is lifted until the stator iron core 7 contacts the end of the hairpin 6; at this time, the wire management drive device and the iron core lifting device 51 act simultaneously, driving the wire management and plugging device 40 to carry the movable support assembly 308 and the stator iron core 7 to move upward at the same time, rising to a preset depth, the upper guard tooth 304 and the coiling and rounding clamping device 31 are retracted at the same time, the wire pressing assembly 320 descends, and after pressing the annular winding into the stator iron core to a predetermined depth, it stops descending and the wire insertion is completed; the wire management and plugging device 40 carries the movable support assembly 308 and rises until the movable support assembly 308 contacts the second guide member 306, the lap joint 3080 corresponds to the suspension groove 3060, the lower guard tooth 401 is retracted, and the hairpin 6 is no longer subjected to the force applied by the upper guard tooth 304, the lower guard tooth 401 and the coiling and rounding clamping device 31;

[0192] The wire pressing assembly 320 is reset, the core lifting device 51 and the tray lifting device 53 are reset, the stator core 7 with completed wire insertion and the core turnover tray 52 fall on the conveyor line body 50, and the stator core 7 with completed wire insertion is conveyed to the discharging position and enters the next process. The winding device 30 and the wire arrangement and insertion device 40 are reset to prepare for the next workpiece to continue wire insertion.

[0193] A method for automatically plugging in a flat wire motor comprises the following steps:

[0194] Loading: Provide at least one type of hairpin 6, store it on the loading mechanism 1, and load it in a predetermined order: according to the design requirements of the stator winding, manually or automatically place the required type and quantity of hairpins 6 on the loading mechanism 1, place multiple hairpins 6 of the same type on each storage and feeding device 10, and under the self-gravity of the hairpin 6 and the vibration of the storage drive component 102, the hairpin 6 moves to the cutting device 11, the cutting device 11 separates the hairpin 6 into single pieces to the dividing device 12, the dividing device 12 transfers the hairpin 6 to the lifting device 13 according to a predetermined order of one layer, the lifting device 13 transfers the hairpin 6 to the hairpin discharging device 20, and multiple hairpins or hairpin groups are arranged in a predetermined order;

[0195] Feeding: a card-issuing circulating feeding mechanism 2 is arranged to match the feeding mechanism 1, and multiple cards 6 of at least one type are received one by one, and arranged in a predetermined order. The cards 6 on each card-issuing arranging device 20 are the cards 6 required for any layer of the stator winding. In this embodiment, the receiving speed of the card-issuing circulating feeding mechanism 2 is arranged to match the feeding speed of the storage feeding mechanism 1;

[0196] Coiling: The feeding position and speed of the hairpin turnover feeding mechanism 2 are matched with the coiling position and speed of the coiling mechanism 3, and the upper guard teeth 304 are extended to the required position of the first layer of hairpins. As the hairpin discharging device 20 carrying the first layer of hairpins moves, when the hairpins 6 come into contact with the coiling device 30, the coiling device 30 rotates, and the first layer of hairpins are peeled off and wound on the coiling device 30 for weaving, and are clamped on the coiling device 30 by the coiling device 31;

[0197] The upper teeth 304 extend to the required position of the second layer of hairpins, and the hairpin discharging device 20 carrying the second layer of hairpins cooperates with the winding device 30, and the second layer of hairpins are peeled off and wound on the winding device 20 for weaving, and are held on the winding device 30 by the winding and holding device 31;

[0198] Repeat the above steps until the last layer of hairpins is wound and woven on the winding device 30, and the winding of the winding is completed. The inner side of the winding contacts the outer layer guide 303, and the outer side of the winding is held tightly by the winding and holding device 31.

[0199] Wire management: the wire insertion mechanism 4 rises and is plugged and matched with the winding mechanism 3 to manage the wires. Specifically, the wire management and plugging device 40 rises to the lower side of the upper guard teeth 304 of the winding mechanism 3, and the lower guard teeth 401 of the wire insertion mechanism 4 extend to position 1 and are inserted into the wound winding;

[0200] The wire pressing device 32 descends and presses against the top surface of the winding to limit the axial and radial positions of the winding;

[0201] The wire management and insertion device 40 descends until the lower guard teeth 401 are flush with the movable support assembly 308, and the lower guard teeth 401 continue to extend to position 2, abutting against each bridging piece 3080 of the movable support assembly 308, so that the movable support assembly 308 is separated from the winding device 30;

[0202] The hairpin 6 is located in the wire hole 402 formed by the lower tooth guard 401 and the movable support assembly 308, and the wire management and plugging device 40 carries the movable support assembly 308 downward to manage the wires until the hairpin 6 stops at the bottom end;

[0203] Inserting wire: The inserting wire mechanism 4 cooperates with the stator core 7 to insert wire, including:

[0204] The tray lifting device 53 is activated to position and lift the core turnover tray 52, and the first positioning member 530 is inserted into the positioning hole 521 of the core turnover tray 52 for positioning;

[0205] The core lifting device 51 is activated to position and lift the stator core 7 so that the upper surface of the stator core 7 is close to the lower end surface of the hairpin 6, and the second positioning member is inserted into the slot of the stator core 7 for positioning;

[0206] The wire arrangement and insertion device 40, the movable support assembly 308 and the stator core 7 rise simultaneously to insert the wires, so that the hairpin 6 winding is inserted into the stator core 7 to a first preset depth. When the wire arrangement and insertion device 40, the movable support assembly 308 and the stator core 7 rise simultaneously, they rise until the movable support assembly 308 is flush with the hanging groove 3060 of the winding device 30, stop rising, the lower guard 401 is retracted, and the bridging member 3080 is reset, so that the movable support assembly 308 is suspended on the winding device 30;

[0207] The upper guard teeth 304 retract, the coiling and clamping device 31 is reset, the wire pressing device 32 descends, the winding is plugged into the stator core 7, the wire pressing device 32 descends, and the hairpin 6 winding is inserted into the stator core 7 to a preset depth. After the wire insertion is completed, the wire management and plugging device 40 and the movable support assembly 308 rise at the same time. After the movable support assembly 308 is suspended on the coiling device 30, the wire pressing device 32 rises, and the wire management and plugging device 40 and the core lifting device 51 are reset.

[0208] Due to the adoption of the above technical solution, the flat wire motor automatic plug-in equipment has a loading mechanism that can adapt to various length specifications of cards according to the stator winding design requirements, and can store and load cards of various length specifications at the same time. There is no need to replace the fixture separately for each length specification of cards, which reduces the fixture replacement time and maintenance costs and improves production efficiency; the loading mechanism has multiple storage and feeding devices, and the card support components of the multiple storage and feeding devices can adapt to cards of different length specifications, respectively, and support and store cards of different length specifications respectively. The straight vibrator drive component can accelerate the movement of the cards on the card support component for rapid loading, and can simultaneously load one or more length specifications of cards according to actual needs. For loading, there is no need to replace the clamps for hairpins of different lengths and specifications, which improves the efficiency of hairpin loading. The product has good adaptability and can load one or more layers of hairpins at the same time, which improves the feeding efficiency, reduces the possibility of scratching the enameled wire during manual loading, and improves the stability of hairpin loading; the cutting device can make multiple hairpins located on the hairpin support assembly be loaded in a single form, so that the dividing device can select hairpins of different lengths and types in sequence according to design requirements and feed them into the lifting device to ensure the accuracy of the subsequent hairpin arrangement sequence, the lifting device can transmit the hairpins to the hairpin discharge device in sequence, the auxiliary feeding device can guide the hairpins transmitted by the lifting device into the hairpin discharge device, and the auxiliary feeding device The distance between the two guide plates of the device can be adjusted to prevent errors and prevent hairpins with abnormal width from falling onto the hairpin discharging device; the hairpin feeding has a high degree of automation, stable movement, small deformation, high feeding efficiency, and each layer of feeding does not affect each other, which improves the phenomena of missing wires, mixed wires, and damage to paint film. It has high adaptability and is suitable for hairpins of different lengths. The product production switches quickly and shortens the equipment preparation time; the hairpin turnover feeding mechanism has multiple hairpin discharging devices, and multiple hairpins of each layer are evenly arranged on the hairpin discharging device, which can transport the hairpins required for multi-layer windings. The hairpin discharging device has multiple slots with fixed spacing, which can adapt to the corresponding hairpins and has an error-proofing function. It can exclude hairpins with abnormal widths. The hairpins are transported without affecting each other, and at least two layers of hairpins can be transported to the coil waiting position, thus shortening the equipment waiting time and improving production efficiency; the coiling mechanism is provided, and through the rotation of the coiling device and the lateral movement of the hairpin discharge device, a layer of hairpins arranged in a row can be wound and woven into a ring-shaped winding for inserting wires; the coiling mechanism is provided with a coiling feeding limiter, which can sort and block the hairpins on the hairpin discharge device during the winding process to prevent the hairpins from flying out of the hairpin discharge device; the upper tooth guard can be gradually extended and retracted under the action of the first guide member and the second guide member, and through the guiding action of the guide slots of the outer guide member and the guide bottom bracket, so that the hairpins required for the multi-layer winding can be hung on the upper tooth guard at the same time;The setting of the coiling and tightening device can fix the multi-layer winding on the coiling device to avoid the loosening of the hairpins. The setting of the coiling guide device can peel the hairpins on the hairpin discharging device to the coiling device in sequence, and hang them on the coiling device in sequence so that the coiling device can be wound. The coiling mechanism has a high degree of automation and stable operation. It can automatically wind each layer of windings, and each layer of windings is tightly wound. The wire pressing device can limit the annular winding in the axial and radial directions to avoid the loosening of the annular winding, which is convenient for subsequent wire insertion. It has high adaptability and can adapt to hairpins of different lengths. The product production switch is fast, the equipment preparation time is shortened, the winding consistency after winding is good, and the improvement Production efficiency; it has a wire insertion mechanism, which is arranged opposite to the coiling mechanism, and has a retractable lower guard tooth, the lower guard tooth cooperates with the movable support component of the coiling device, the movable support component is separated from the coiling device, and the movable support component and the lower guard tooth form a plurality of wire passing holes, which straightens the hairpin on the coiling device, and positions and guides the hairpin before inserting it into the stator core to avoid damage to the insulating paper or damage to the insulating sheet of the hairpin caused by misalignment. At the same time, the hairpin is guided when the wire is inserted, so that the hairpin can be accurately inserted into the corresponding slot of the stator core, which can not only complete the wire management, but also play a guiding role when the wire is inserted, without the need to set up a separate execution structure, simplifying the structure of the wire insertion equipment The structure complexity is reduced, and the initial cost investment is reduced. After the coiling is completed, the wire can be inserted in conjunction with the wire insertion mechanism. There is no need to move the annular winding after winding and braiding, which improves the overall wire insertion time, improves work efficiency, and increases production capacity. The annular winding can move toward the stator core under the action of the wire pressing device, and the stator core can move toward the annular winding under the action of the core lifting device. The two can move in opposite directions at the same time, further improving the wire insertion speed and increasing the wire insertion stroke. It can meet the wire insertion requirements of various stators with different stack thicknesses and increase the compatibility of the equipment; it has an iron core conveying mechanism, which can simultaneously transport the stator core during the feeding and coiling process, improving work efficiency Rate; The flat wire motor automatic plug-in equipment has a high degree of automation, can feed the hairpin and stator core while winding the material, has stable action, small deformation of the hairpin, can avoid scratching the hairpin during the insertion process, feeding and winding do not affect each other, each layer of feeding can also be done independently, the hairpin can be combed more neatly and tightly before being inserted into the stator core, avoiding various defects caused by looseness, improving product quality, improving production efficiency, strong adaptability, can adapt to hairpins of different lengths, product production switching is fast, shortening equipment preparation time, and compared with existing equipment, it has less personnel requirements, only a few people are needed to maintain the equipment operation, reducing labor costs. ;

[0209] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A feeding mechanism, characterized in that: include, At least one set of feeding and separation structures to sequentially transport the stored multiple hairpins and separate them one by one; At least one set of feeding and lifting structures is arranged at the discharge end of the feeding and separation structure, cooperates with the feeding and separation structure, receives the single hairpins separated in sequence, and transports each hairpin to the corresponding hairpin discharge device in sequence according to the required sequence of hairpins for each layer of winding.

2. The feeding mechanism according to claim 1, characterized in that: Each group of the feeding and separation structures includes a storage and feeding device and a cutting device arranged at the discharge end of the storage and feeding device. Multiple hairpins located on the storage and feeding device are transported to the discharge end in sequence. When the cutting device is activated, each hairpin is separated in sequence and enters the corresponding feeding and lifting structure.

3. The feeding mechanism according to claim 2, characterized in that: The material storage and feeding device includes a card issuing support assembly and a material storage driving assembly connected to the card issuing support assembly. The material storage driving assembly is actuated to drive the cards stored on the card issuing support assembly to move toward the discharging end in sequence.

4. The feeding mechanism according to claim 3, characterized in that: The hairpin support assembly includes a support guide for supporting the turning portion of the hairpin and side supports arranged on both sides of the support guide, the side supports support the inside of the hairpin groove, the support guide and the side supports are both connected to the material storage drive assembly, and the hairpin moves along the support guide.

5. The feeding mechanism according to claim 4, characterized in that: A sub-guide is constructed at one end of the support guide member close to the cutting device, and the sub-guide member is arranged to extend obliquely from the end of the support guide member toward the direction of the feeding and lifting structure, and the end of the sub-guide member connected to the support guide member has a distance from the corresponding end of the support guide member in the vertical direction, so that the support guide member cooperates with the cutting device so that a plurality of hairpins fall on the sub-guide member in sequence.

6. The feeding mechanism according to any one of claims 3 to 5, characterized in that: The cutting device comprises a cutting drive assembly and a cutting piece arranged on the cutting drive assembly, wherein the cutting drive assembly drives the cutting piece to move, and the cutting piece is configured as follows: a side surface facing the hairpin support assembly is configured with a receiving groove, and when no cutting is performed, the receiving groove corresponds to the material discharging end of the hairpin support assembly, so that the hairpin located on the hairpin support assembly can enter the receiving groove; When cutting materials, the cutting piece moves, the accommodating groove is staggered with the material discharging end of the hairpin supporting assembly, and the hairpin falls onto the feeding and lifting structure.

7. The feeding mechanism according to any one of claims 1 to 5, characterized in that: The feeding and lifting structure includes a matching material distribution device and a lifting device, wherein: The material separation device is configured to selectively correspond to the feeding separation structure at different positions, and sequentially receives the hairpins separated by the feeding separation structure according to the required order of hairpins for each layer of windings; The lifting device is configured to be movable between the material dividing device and the card issuing and discharging device so as to transfer the cards issued at different positions to the corresponding card issuing and discharging devices.

8. The feeding mechanism according to claim 7, characterized in that: The material distribution device comprises a swinging assembly and a plurality of material distribution guide assemblies arranged on the swinging assembly, and the material distribution guide assemblies cooperate with the feeding separation structures at different positions.

9. The feeding mechanism according to claim 8, characterized in that: The material distribution device also includes a material distribution driving assembly, the swing assembly is connected to the material distribution driving assembly, and the material distribution driving assembly drives the swing assembly to move, so that the material distribution guide assembly swings and cooperates with the feeding separation structure at different positions.

10. The feeding mechanism according to claim 7, characterized in that: The lifting device includes a lifting drive assembly and a conveying assembly connected to the lifting drive assembly. The conveying assembly is constructed with a plurality of baffles arranged at intervals. The lifting drive assembly drives the conveying assembly to rotate. Each hairpin conveyed by the dividing device is blocked and suspended by a corresponding baffle for conveyance.

11. The feeding mechanism according to claim 7, characterized in that: The feeding and lifting structure also includes an auxiliary feeding device, which is arranged on the discharge side of the lifting device, receives the hairpins transmitted by the lifting device, and transmits the hairpins to the hairpin discharge device.

12. The feeding mechanism according to claim 11, characterized in that: The auxiliary feeding device includes a feeding assembly and a guide adjustment assembly arranged on both sides of the feeding assembly. The hairpin moves along the feeding assembly, and the guide adjustment assembly guides the hairpin during its movement; wherein, The guide adjustment assembly includes guide plates arranged opposite to each other and an adjustment member connected to the guide plates. The adjustment member is actuated to drive the guide plates arranged opposite to each other to move closer or farther away from each other so as to limit the card issuance type. The feeding assembly comprises a feeding slideway, and the hairpin slides along the feeding slideway.

13. The feeding mechanism according to claim 12, characterized in that: It also includes a boosting component, which is arranged on both sides of the feeding component close to the discharge end, and pushes the hairpin to make the hairpin slide out of the feeding component.

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