Stator multi-layer flat wire head twisting equipment

Abstract

The utility model relates to a stator multi-layer flat wire head twisting device which comprises a main shaft, a supporting shaft, a head twisting die, a rotation driving mechanism and an axial lifting mechanism. Each rotary driving mechanism comprises an adapter sleeve, a supporting piece and a transmission mechanism, the adapter sleeve is arranged on the main shaft in a sleeving mode, one adapter sleeve is correspondingly connected with one torsion head disc, the supporting piece is slidably arranged on the supporting shaft and the adapter sleeve in a sleeving mode, and the transmission mechanism is connected with the supporting piece and can drive the adapter sleeve to rotate; the adapter sleeve drives the corresponding torsion head disc to rotate by a preset angle; each axial lifting mechanism comprises a lifting shaft and a connecting piece, one end of each connecting piece is fixedly connected with the corresponding lifting shaft and is driven by the corresponding lifting shaft to ascend or descend, and the other end of each connecting piece is connected with the corresponding supporting piece and can drive the supporting piece to ascend or descend axially so as to drive the torsion head disc to ascend or descend axially. According to the device, single-shaft control and multi-degree-of-freedom control are carried out on each layer of torsion head, and rapid debugging and accurate control are facilitated.

Description

Technical Field

[0001] The utility model relates to the field of motor stators, in particular to a stator multi-layer flat wire twisting device. Background Art

[0002] As the country vigorously promotes energy conservation and environmental protection, new energy vehicles have developed rapidly. As the core component of new energy vehicles, the drive motor plays a vital role. Among them, during the assembly process of the drive motor, the stator of the drive motor needs to be twisted. The twisting process is the process in which the twisting end of the stator changes from a straight line to a regular curve. During the twisting process, it needs to rotate and rise or fall at the same time.

[0003] With the development of new energy vehicles, the number of flat wire layers required for drive motor stators is increasing. At present, the twisting equipment of multi-layer flat wire stators mainly controls the synchronous rise or descent of multiple layers by a single axis to twist the head. The twisting radius required for each layer of flat wire is different, and the descent speed and rotation speed of each layer start and end at different times. Therefore, the twisting process of single-axis control is difficult to debug, and it is difficult to control the accuracy of the twisting. In addition, the existing twisting equipment of multi-layer flat wire stators is usually complex in structure, large in size, and limited in installation space. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] According to an embodiment of the utility model, a stator multilayer flat wire twisting device is provided, comprising:

[0006] The main axis is formed by extending in the vertical direction;

[0007] A supporting shaft extending in a vertical direction and arranged around the main shaft;

[0008] The twisting die comprises a plurality of twisting disks, which are rotatably sleeved on the top of the main shaft in sequence along the radial direction of the main shaft, and the plurality of twisting disks are used for inserting multiple layers of flat wires;

[0009] A plurality of rotary drive mechanisms are provided and arranged between the twisting head mold and the bottom of the main shaft. The plurality of rotary drive mechanisms correspond to the plurality of twisting head disks one by one. Each of the rotary drive mechanisms comprises an adapter sleeve, a support member and a transmission mechanism. The adapter sleeve is sleeved on the main shaft. One adapter sleeve is correspondingly connected to one twisting head disk. The support member can be slidably sleeved on the support shaft and the adapter sleeve. The transmission mechanism is connected to the support member and can drive the adapter sleeve to rotate. The adapter sleeve drives the corresponding twisting head disk to rotate by a preset angle.

[0010] There are multiple axial lifting mechanisms, which are arranged between the twisting head mold and the bottom of the main shaft. The multiple axial lifting mechanisms correspond one-to-one to the multiple twisting head disks. Each of the axial lifting mechanisms includes a lifting shaft and a connecting member. One end of the connecting member is fixedly connected to the lifting shaft and is driven to rise or fall by the lifting shaft. The other end of the connecting member is connected to the support member and can drive the support member to rise and fall axially to drive the rotating drive mechanism corresponding to the support member and the corresponding twisting head disk to rise or fall axially.

[0011] In some embodiments, the transmission mechanism is a connecting rod mechanism, one end of which is driven by a motor to perform linear motion, the support member is provided with a hollow structure, the other end of the connecting rod mechanism extends into the hollow structure, and drives the adapter sleeve to rotate in the hollow structure of the support member.

[0012] In some embodiments, the extending direction of the connecting rod mechanism is perpendicular to the axial direction of the main shaft.

[0013] In some embodiments, each of the connecting members is arranged at a position of the corresponding supporting member within the supporting shaft.

[0014] In some embodiments, the multiple axial lifting mechanisms are symmetrically arranged around the main shaft with the main shaft as the center, the connecting parts of every two symmetrically arranged axial lifting mechanisms are symmetrically arranged, one lifting shaft is connected to an electric cylinder, and the multiple electric cylinders are symmetrically arranged around the main shaft with the main shaft as the center.

[0015] In some embodiments, half of the plurality of electric cylinders are arranged at the top of the spindle, and the other half of the plurality of electric cylinders are arranged at the bottom of the spindle.

[0016] In some embodiments, the support member includes a main board body and a cover plate, the middle of the main board body can be slidably mounted on the adapter sleeve, the periphery of the main board body can be slidably mounted on the support shaft, and the hollow structure is formed between the cover plate and the main board body.

[0017] In some embodiments, at least three arms are provided around the main board body, the number of the support shafts is at least six, the six support shafts are evenly arranged along the circumference of the main axis, the three arms of each main board body are sleeved on three support shafts, and the two adjacent main board bodies are respectively sleeved on three different support shafts.

[0018] In some embodiments, the stator multi-layer flat wire twisting equipment also includes a positioning and clamping module, which includes at least two positioning components, and the at least two positioning components are arranged around the twisting mold. Each of the positioning components includes a main body and a clamp, and the bottom end of the main body is arranged at the top of the main shaft and extends along the axial direction of the twisting mold. The clamp is arranged at the top of the main body, and the clamp is used to position and clamp the stator.

[0019] In some embodiments, the body and the jaws can be moved in a plane parallel to the upper surface of the stator to change their relative positions to the stator.

[0020] In some embodiments, the twisting die and the positioning clamping module are separated from the rotary drive mechanism and the axial lifting mechanism.

[0021] The utility model has the beneficial effects:

[0022] By setting a corresponding axial lifting mechanism for each twist head disk, each layer of the twist head is controlled by a single axis, which facilitates efficient and accurate confirmation of debugging parameters and shortens the production cycle. At the same time, the multi-degree-of-freedom control of the equipment is conducive to rapid debugging and precise control.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Other features and advantages of the present invention are described below, which explains the present invention in more detail based on embodiments in conjunction with the accompanying drawings.

[0025] Figure 1 It is a structural schematic diagram of a stator multi-layer flat wire twisting device according to an embodiment of the utility model;

[0026] Figure 2 for Figure 1 sectional view of

[0027] Figure 3 It is a structural schematic diagram of a plurality of axial lifting mechanisms according to an embodiment of the utility model;

[0028] Figure 4 for Figure 3 Side view of

[0029] Figure 5 It is a structural schematic diagram of a rotary drive mechanism according to an embodiment of the utility model;

[0030] Figure 6 A driving trajectory of a rotary driving mechanism demonstrated according to an embodiment of the utility model;

[0031] Figure 7 It is a cross-sectional view of a stator multi-layer flat wire twisting device according to an embodiment of the utility model;

[0032] Figure 8 It is a structural schematic diagram of a positioning assembly according to an embodiment of the utility model;

[0033] Fig. 9 for Figure 7 Side view of. Description of the drawings:

[0035] 100, main shaft; 200, supporting shaft; 300, twist head mold; 310, twist head disk; 400, rotary drive mechanism; 410, adapter sleeve; 420, support member; 421, main body; 422, cover plate; 4211, arm; 430, transmission mechanism; 431, connecting rod mechanism; 440, motor; 500, axial lifting mechanism; 510, lifting shaft; 520, connecting member; 530, electric cylinder; 600, positioning clamping module; 610, positioning assembly; 611, main body; 612, clamping claw; 613, keyway; 614, slide rail; 700, chassis. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be noted that the terms "upper", "lower", "left", "right", "front", "back" and similar expressions used herein are only for the purpose of illustration and are not intended to limit the present invention.

[0037] At present, the single-axis controlled multi-layer twisting head mold in the existing technology rises or falls synchronously. During this process, the rotation of each layer of flat wire must take into account the up and down time in the axial direction. For example, when the outermost layer rotates and rises to the second layer, the first layer has not completed the action, but the second layer has entered the mold and follows the rotation. The time point of the second layer entering the mold must be strictly controlled. Therefore, debugging is difficult, and the twisting head effects of entering the mold at different time points are different.

[0038] In addition, the flat wire has a rebound phenomenon. Generally, excessive rotation and downward pressure are required to achieve the target size. For example: if the target flat wire height is 33mm, the upward compression in the axial direction must exceed 33mm, and it will be close to 33mm after being released. The sizes of flat wires in different layers are different, and the over-pressure and over-rotation requirements for different sizes are different. For example: the outermost layer has a diameter of 60mm, and it needs to be pressed 36mm to rebound to 33mm, while the innermost layer has a diameter of 50mm and only needs to be pressed to 34mm. The single-axis control in the existing technology has only one control axis in the axial direction, that is, different inner and outer diameters can only be pressed to one height, so the debugging is not precise enough.

[0039] In order to solve the above technical problems, the utility model provides a stator multi-layer flat wire twisting device with high twisting freedom, which is described in detail below.

[0040] The utility model provides a stator multi-layer flat wire twisting device, see Figure 1-Figure 6 , which specifically includes a main shaft 100, a support shaft 200, a twisting die 300, a rotary drive mechanism 400 and an axial lifting mechanism 500. Among them, the main shaft 100 is extended in the vertical direction; the support shaft 200 is extended in the vertical direction and arranged around the main shaft; the twisting die 300 includes a plurality of twisting disks 310, and the plurality of twisting disks 310 are rotatably sleeved on the top of the main shaft 100 in sequence along the radial direction of the main shaft 100, and the plurality of twisting disks 310 are used to insert multiple layers of flat wires, that is, one layer of flat wire is inserted in one twisting disk 310, and the number of twisting disks is greater than or equal to the number of layers of flat wires to be inserted; the rotary drive mechanism 400 is provided with a plurality of twisting disks arranged on the twisting die 300. Between the mold 300 and the bottom of the main shaft 100, a plurality of rotary drive mechanisms 400 correspond to a plurality of twisting head disks 310 one by one, that is, the number of the rotary drive mechanisms 400 is the same as the number of the twisting head disks 310, and one rotary drive mechanism 400 drives one twisting head disk 310 to rotate, each rotary drive mechanism 400 includes an adapter sleeve 410, a support member 420 and a transmission mechanism 430, the adapter sleeve 410 is sleeved on the main shaft 100, and one adapter sleeve 410 is connected to one twisting head disk 310. 10, the support member 420 can be slidably mounted on the support shaft 200 and the adapter sleeve 410, the transmission mechanism 430 is connected to the support member 420 and can drive the adapter sleeve 410 to rotate, and the adapter sleeve 410 drives the corresponding twisting head disk 310 to rotate by a preset angle; a plurality of axial lifting mechanisms 500 are provided, which are arranged between the twisting head mold 300 and the bottom of the main shaft 100, and the plurality of axial lifting mechanisms 500 correspond to the plurality of twisting head disks 310 one by one, that is, the number of the axial lifting mechanisms 500 corresponds to the number of the twisting head disks 310 The number is the same, and one axial lifting mechanism 500 drives one twist head disk 310 to lift and lower. Each axial lifting mechanism 500 includes a lifting shaft 510 and a connecting member 520. One end of the connecting member 520 is fixedly connected to the lifting shaft 510 and is driven to rise or fall by the lifting shaft 510. The other end of the connecting member 520 is connected to the support member 420 and can drive the support member 420 to lift and lower axially, so as to drive the rotating drive mechanism 400 corresponding to the support member 420 and the corresponding twist head disk 310 to rise or fall axially.

[0041] Compared with the prior art that uses single-axis control and cannot simultaneously meet the setting of the rebound amount of each layer of flat wire, in the above implementation process, the utility model sets a corresponding axially controlled axial lifting mechanism for each layer of flat wire (i.e., each twisting head disk), that is, each axial lifting mechanism drives a layer to move up and down (traditional equipment has only one axis, and multiple layers must move up and down at the same time), which greatly improves the convenience and accuracy of debugging. In addition, single-axis axial control must be serial (i.e., the first layer of flat wire is put into the stator mold, the axial descent speed and twisting speed of the first layer of flat wire are set, and then the parameters of the second layer of flat wire of the stator are calculated, and so on), and the interference between the control of each layer of flat wire needs to be considered, while the multi-axis control of the utility model can realize parallel control, and the twisting parameters of each layer of flat wire do not interfere with each other, and efficient and accurate control is achieved according to the characteristics of each layer of flat wire. Each layer can move freely in the axial direction independently, and the parameters can be set separately according to the characteristics of flat wires of different sizes, which is convenient for efficient and accurate confirmation of debugging parameters and shortening the production cycle. Specifically, in the actual head twisting process, the straight line is inserted into the groove of the head twisting mold, and each layer of the head twisting disk in the head twisting mold can be individually and synchronously raised while rotating to adjust the distance.

[0042] In addition, in the utility model, by closely connecting the rotary drive mechanism and the axial lifting mechanism, that is, the axial lifting mechanism adopts a lifting shaft and a connecting piece, and the connecting piece cooperates with the supporting piece of the rotary drive mechanism, it is possible to achieve that each layer of the twist head disk rises or falls individually while rotating, and it also has the advantages of compact structure and small size.

[0043] It should be noted that the number of the twisting disks in the present invention can be 8, 6 or any value greater than or equal to the number of flat wire layers of the stator to be twisted, and the present application does not impose any restrictions on this. Correspondingly, the number of the rotary drive mechanism and the axial lifting mechanism corresponds to the number of the twisting disks. For example, the number of the twisting disks, the rotary drive mechanism and the axial lifting mechanism are all 8, or the number of the twisting disks, the rotary drive mechanism and the axial lifting mechanism are all 6.

[0044] Since the present invention adopts an axial drive mechanism of a lifting shaft and a connecting member, the rotary drive mechanism needs to change its axial position as the lifting shaft is lifted. Therefore, in order to further ensure the smooth operation of the rotary drive mechanism in the axial direction, the transmission mechanism 430 is a connecting rod mechanism 431. One end of the connecting rod mechanism 431 is driven by the motor 440 to make linear motion. The support member 420 is provided with a hollow structure. The other end of the connecting rod mechanism 431 extends into the hollow structure and drives the adapter sleeve 410 to rotate in the hollow structure of the support member 420. The motor drives the connecting rod to move linearly, thereby driving the internal multi-layer adapter sleeves to rotate. Each motor controls one layer of the adapter sleeve. The entire operation is stable and reliable, which facilitates the axial movement of the rotary drive mechanism under the action of the axial lifting mechanism.

[0045] In some embodiments, the extension direction of the connecting rod mechanism 431 is perpendicular to the axial direction of the main shaft 100 to improve the accuracy of converting linear motion into rotational motion.

[0046] In some embodiments, each connecting member 520 is arranged at a position of the corresponding supporting member 420 located inside the supporting shaft 200. Specifically, the supporting member 420 is sleeved on the supporting shaft 200 and at the same time sleeved in the adapter sleeve 410 (i.e. sleeved outside the main shaft 100), that is, the connecting member 520 needs to be arranged at any position in the area between the main shaft 100 and the supporting shaft 200. In this way, the connecting member 520 can better and more stably drive the supporting member 420 to rise or fall axially.

[0047] In some embodiments, a plurality of axial lifting mechanisms 500 are symmetrically arranged around the spindle 100 with the spindle 100 as the center, and the connecting members 520 of every two symmetrically arranged axial lifting mechanisms 500 are symmetrically arranged. Specifically, the connecting members 520 of the two symmetrically arranged axial lifting mechanisms 500 are symmetrically arranged up and down in the axial direction of the spindle 100. One lifting shaft 510 is connected to one electric cylinder 530, and a plurality of electric cylinders 530 are symmetrically arranged around the spindle 100 with the spindle 100 as the center.

[0048] In some embodiments, half of the plurality of electric cylinders 530 are arranged at the top of the spindle 100, and the other half of the plurality of electric cylinders 530 are arranged at the bottom of the spindle 100, and the electric cylinders 530 at the top of the spindle 100 and the electric cylinders 530 at the bottom of the spindle 100 are arranged symmetrically with the spindle 100 as the center. Figure 3 and Figure 4 The number of the multiple electric cylinders is 8, of which 4 are arranged at the top of the spindle and the other 4 are arranged at the bottom of the spindle, and the 4 cylinders at the top of the spindle and the 4 cylinders at the bottom of the spindle are arranged symmetrically with the spindle as the center. By reasonably arranging the position of the axial lifting mechanism 500, the structure of the entire twisting head device can be stabilized and further made more compact.

[0049] Figure 5 This is a structural schematic diagram of a rotating drive mechanism according to an embodiment of the utility model. The support member 420 includes a main board body 421 and a cover plate 422. The middle of the main board body 421 can be slidably mounted on the adapter sleeve 410, and the periphery of the main board body 421 can be slidably mounted on the support shaft 200. A hollow structure is formed between the cover plate 422 and the main board body 421.

[0050] Specifically, see Figure 1 , Figure 5 and Figure 7At least three arms 4211 are provided around the main board body 421, the number of support shafts 200 is at least six, and the six support shafts 200 are evenly arranged along the circumference of the main shaft 100. The three arms 4211 of each main board body 421 are sleeved on three support shafts 200, and two adjacent main board bodies 421 are respectively sleeved on different three support shafts 200.

[0051] In the above implementation process, the main board body is connected to the support shaft through at least three arms as the support body to ensure the flatness in the plane perpendicular to the axial direction of the main shaft, and further ensure the axial movement of the support member driven by the axial lifting mechanism. In addition, each connecting member is arranged at the position of the corresponding support member located in the support shaft, and the two settings complement each other, and while ensuring the flatness, the smooth lifting and lowering of the axial direction of the support member can be ensured.

[0052] See also Figure 1 and Figure 8 The stator multi-layer flat wire twisting equipment also includes a positioning and clamping module 600, which includes at least two positioning components 610. At least two positioning components 610 are arranged around the twisting mold 300. Each positioning component 610 includes a main body 611 and a clamping jaw 612. The bottom end of the main body 611 is arranged at the top of the main shaft 100 and extends along the axial direction of the twisting mold 300. The clamping jaw 612 is arranged at the top of the main body 611. The clamping jaw 612 is used to position and clamp the stator. Compared with the traditional head twisting equipment that uses a wire clamping disc to fix the flat wire, the size and structure of the wire clamping disc of each product are different. Affected by the space and structure of the head twisting equipment, it is inconvenient to change the model, and the compatible size will also be affected. The utility model adopts a split design of the product clamping device to separate the wire clamping disc device for fixing the product, that is, a positioning and clamping module is separately arranged around the head twisting mold, which can be carried out in parallel with the head twisting action to speed up the whole line rhythm. At the same time, it is less affected by the equipment structure, is compatible with a wider range of product sizes, and is convenient for rapid changeover and assembly line operation of stator products.

[0053] In some embodiments, the body 611 and the clamping jaws 612 can move in a plane parallel to the lower surface of the stator to change their relative positions with respect to the stator. Fig. 9 Taking the clamping jaw as an example, a key slot 613 extending along the first direction is arranged between the clamping jaw 612 and the main body 611, and the clamping jaw can change its position relative to the main body in the first direction along the key slot. At the same time, a slide rail 614 extending along the second direction is arranged between the clamping jaw and the main body, and the clamping jaw can fine-tune its position in the second direction along the slide rail. The above-mentioned first direction and second direction are only used for brief description, and the first direction and the second direction are perpendicular to each other.

[0054] In some embodiments, the twisting die 300 is separated from the rotary drive mechanism 400 and the axial lifting mechanism 500. Figure 1 A chassis 700 is provided at the bottom of the twisting head mold 300, and a positioning clamping module 600 is provided around the chassis 700. The modular design of the chassis 700 and the twisting head mold facilitates disassembly and cleaning, thereby reducing the equipment failure rate and maintenance time. In addition, by separating the drive module (rotation drive mechanism and axial lifting mechanism) and the tooling from the feeding module, the waste generated during the production process is prevented from affecting the life of the drive components. The maintenance and replacement of the drive components can be completed by hoisting through the middle hole without disassembling the entire equipment frame.

[0055] The specific twisting process of the stator multilayer flat wire twisting device of the utility model is as follows:

[0056] The first step is to place the stator lead end downward into the positioning clamping module of the twisting device through the manipulator, press the stator and lock the flat wire;

[0057] In the second step, the twisting equipment moves downward along the axis, inserts the lead wire into the die hole of the twisting die and runs to the set height;

[0058] In the third step, the head twisting device continues to descend axially, and at the same time, the n-th layer of head twisting disk in the head twisting mold is driven by the rotating drive mechanism to start rotating according to the head twisting curve, and the other head twisting disks remain stationary; when it continues to descend axially under the drive of the axial drive mechanism (the n-th layer of head twisting disk continues to rotate) to a preset height, the n-1-th layer of head twisting disk starts to rotate according to the head twisting curve, and the other head twisting disks (1 to n-2 layers of head twisting disks) remain stationary; according to this sequence, all the head twisting disks in the head twisting mold are rotated into place in turn; n can be 6, 8, or any number of layers, and is not limited in the present utility model.

[0059] Step 4: The twisting device moves upward along the axial direction, the flat wire is separated from the twisting die, and the stator is taken out of the device by the robot to complete the twisting.

[0060] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0061] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0063] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0064] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A stator multilayer flat wire twisting device, characterized in that: include: The main axis is formed by extending in the vertical direction; A supporting shaft extending in a vertical direction and arranged around the main shaft; The twisting die comprises a plurality of twisting disks, which are rotatably sleeved on the top of the main shaft in sequence along the radial direction of the main shaft, and the plurality of twisting disks are used for inserting multiple layers of flat wires; A plurality of rotary drive mechanisms are provided and arranged between the twisting head mold and the bottom of the main shaft. The plurality of rotary drive mechanisms correspond to the plurality of twisting head disks one by one. Each of the rotary drive mechanisms comprises an adapter sleeve, a support member and a transmission mechanism. The adapter sleeve is sleeved on the main shaft. One adapter sleeve is correspondingly connected to one twisting head disk. The support member can be slidably sleeved on the support shaft and the adapter sleeve. The transmission mechanism is connected to the support member and can drive the adapter sleeve to rotate. The adapter sleeve drives the corresponding twisting head disk to rotate by a preset angle. There are multiple axial lifting mechanisms, which are arranged between the twisting head mold and the bottom of the main shaft. The multiple axial lifting mechanisms correspond one-to-one to the multiple twisting head disks. Each of the axial lifting mechanisms includes a lifting shaft and a connecting member. One end of the connecting member is fixedly connected to the lifting shaft and is driven to rise or fall by the lifting shaft. The other end of the connecting member is connected to the support member and can drive the support member to rise and fall axially, so as to drive the rotary drive mechanism corresponding to the support member and the corresponding twisting head disk to rise or fall axially.

2. The stator multilayer flat wire twisting device according to claim 1, characterized in that: The transmission mechanism is a connecting rod mechanism, one end of which is driven by a motor to perform linear motion, the support member is provided with a hollow structure, the other end of the connecting rod mechanism extends into the hollow structure and drives the adapter sleeve to rotate in the hollow structure of the support member.

3. The stator multilayer flat wire twisting device according to claim 2, characterized in that: The extending direction of the connecting rod mechanism is perpendicular to the axial direction of the main shaft.

4. The stator multilayer flat wire twisting device according to claim 2, characterized in that: Each of the connecting members is arranged at a position of the corresponding supporting member located within the supporting shaft.

5. The stator multilayer flat wire twisting device according to claim 4, characterized in that: The multiple axial lifting mechanisms are symmetrically arranged around the main shaft with the main shaft as the center, the connecting parts of every two symmetrically arranged axial lifting mechanisms are symmetrically arranged, one lifting shaft is connected to an electric cylinder, and the multiple electric cylinders are symmetrically arranged around the main shaft with the main shaft as the center.

6. The stator multilayer flat wire twisting device according to claim 5, characterized in that: Half of the plurality of electric cylinders are arranged at the top of the spindle, and the other half of the plurality of electric cylinders are arranged at the bottom of the spindle.

7. The stator multilayer flat wire twisting device according to claim 2, characterized in that: The support member includes a main board body and a cover plate. The middle of the main board body can be slidably mounted on the adapter sleeve. The periphery of the main board body can be slidably mounted on the support shaft. The hollow structure is formed between the cover plate and the main board body.

8. The stator multilayer flat wire twisting device according to claim 7, characterized in that: At least three arms are arranged around the main board body, the number of the support shafts is at least six, and the six support shafts are evenly arranged along the circumference of the main axis. The three arms of each main board body are sleeved on three support shafts, and two adjacent main board bodies are respectively sleeved on three different support shafts.

9. The stator multilayer flat wire twisting device according to claim 1, characterized in that: It also includes a positioning and clamping module, which includes at least two positioning components, and the at least two positioning components are arranged around the twisting head mold. Each of the positioning components includes a main body and a clamping claw. The bottom end of the main body is arranged at the top of the main shaft and extends along the axial direction of the twisting head mold. The clamping claw is arranged at the top of the main body, and the clamping claw is used to position and clamp the stator.

10. The stator multilayer flat wire twisting device according to claim 9, characterized in that: The main body and the clamping jaws can move in a plane parallel to the upper surface of the stator to change their relative positions with respect to the stator.

11. The stator multilayer flat wire twisting device according to claim 9, characterized in that: The twisting die and the positioning clamping module are separated from the rotary drive mechanism and the axial lifting mechanism.

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