A flaring device for motor stator coils

Abstract

The application discloses a flaring device for motor stator coils, characterized in that the device comprises a bottom plate assembly and a top plate assembly arranged above the bottom plate assembly; a stator positioning seat for vertically positioning a stator with a coil to be flared is arranged on the bottom plate assembly; a first linear telescopic mechanism vertically downward is arranged on the top plate assembly; a flaring die plate is connected to the telescopic part at the lower end of the first linear telescopic mechanism; a flaring die in a cylindrical shape is arranged below the flaring die plate; the flaring die is coaxially arranged with the stator with the coil to be flared positioned on the stator positioning seat; the inner diameter of the flaring die matches the minimum diameter of the part to be flared; the thickness of the flaring die matches the width of the part to be flared; and the lower end is in the shape of a blade with gradually reduced thickness. The application has the advantages of reasonable structure design, convenient operation and use, reduced equipment cost, improved production efficiency and the like.

Description

Technical Field

[0001] This invention relates to the field of motor processing technology, and in particular to a flaring device for motor stator coils. Background Technology

[0002] As a core component of electric vehicles, the performance of the electric motor directly affects the overall performance of the vehicle. Currently, electric vehicles mainly use flat wire motors. After the stator coils of the flat wire motor are inserted into the stator slots, the wires in the stator slots need to be grouped in pairs radially. To facilitate subsequent processes, each pair of wires needs to be separated radially, i.e., flared.

[0003] Currently, Chinese patent literature discloses a coil flaring mechanism for new energy motors, application publication number CN113078784A. This mechanism uses multiple wire-clamping mechanisms evenly mounted on the upper surface of a rotating disk mounting plate to clamp and pull the wires in each stator slot, thus completing the flaring. However, because the circumferential dimensions of the wire-clamping mechanisms on the rotating disk mounting plate are large, while the spacing between the stator slots is small, and the number of wire-clamping mechanisms is less than the number of stator slots, to achieve the flaring operation in each stator slot, multiple wire-clamping mechanisms need to be rotated relative to the stator and flared in batches. This process is complex and inefficient. Furthermore, each wire-clamping mechanism requires an independent drive component, resulting in high overall implementation costs. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by the present invention is: how to provide a motor stator coil flaring device with reasonable structural design, convenient operation and use, which is conducive to reducing equipment costs and improving production efficiency.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A flaring device for a motor stator coil is characterized by comprising a base plate assembly and a top plate assembly mounted above the base plate assembly. The base plate assembly is provided with a stator positioning seat for vertically positioning the stator coil to be flared. The top plate assembly has a first linear telescopic mechanism arranged vertically downwards. A flaring template is connected to the telescopic part at the lower end of the first linear telescopic mechanism. Below the flaring template is a cylindrical flaring mold. The flaring mold is coaxially arranged with the stator coil to be flared, which is positioned on the stator positioning seat. The inner diameter of the flaring mold matches the minimum diameter of the part to be flared, the thickness of the flaring mold matches the width of the part to be flared, and the lower end has a gradually decreasing thickness blade shape.

[0007] Using the above structure, the stator containing the stator coil to be flared is vertically positioned on the stator positioning seat. The telescopic end of the first linear telescopic mechanism drives the flaring template downward. Because the lower end of the flaring template is blade-shaped, it can be well inserted between the two sets of wires in the part to be flared. Subsequently, the flaring template moves further downward and is inserted into the flaring part. Since the thickness of the flaring template matches the width of the flaring, the part to be flared can be flared after the flaring template is inserted into place. The above structure only requires one action and one drive mechanism to complete one flaring cycle, which can improve the efficiency of flaring, reduce the cost of equipment, and the simplified drive mechanism helps to reduce the failure rate and improve the stability of equipment operation.

[0008] Furthermore, it also includes a limiting correction mechanism disposed between the bottom plate assembly and the top plate assembly. The limiting correction mechanism includes a horizontally disposed positioning plate. The center of the positioning plate has a clearance hole through which the stator coil to be flared passes. The positioning plate has a second linear telescopic mechanism disposed radially inward along the clearance hole. The telescopic end of the second linear telescopic mechanism has a limiting correction part for pressing the wire. The second linear telescopic mechanism is evenly distributed in z positions along the circumference of the clearance hole, and z = Z / n, where Z is the number of stator slots of the stator coil to be flared, and n is a positive integer.

[0009] During operation, after the flaring die lowers to complete the flaring operation, the conductor on the outer side of the flaring die will tilt outwards as a whole. Using a second linear telescopic mechanism, this mechanism can extend inwards to compress the conductor, preventing it from tilting outwards. If n is 1, the limiting correction part can be moved to a designated position before flaring, or moved inwards after flaring to restrict the outward tilt of the conductor on the outer side of the flaring die, thus correcting the conductor and ensuring the assembly quality after flaring. If n is greater than 1, after flaring, some conductors can be corrected, and the stator containing the stator coil to be flared can be rotated relative to the second linear telescopic mechanism by one stator slot position, repeating the correction multiple times. Alternatively, the limiting correction part can simultaneously compress and correct n adjacent conductors, eliminating the need for multiple corrections and reducing the number of second linear telescopic mechanisms.

[0010] Furthermore, at least two flaring molds are coaxially sleeved, and each flaring mold is respectively mounted on the top plate assembly using the corresponding first linear telescopic mechanism; the inner diameter of each flaring mold is matched with the minimum diameter of the corresponding flaring part.

[0011] In this way, the first linear telescopic mechanism can drive the corresponding flaring molds to move downwards, performing flaring operations layer by layer from the inside out. For example, the innermost flaring mold can be moved downwards first, and after flaring, it can be moved upwards to reset. Then, the next innermost flaring mold can be moved downwards to perform the flaring operation. While each flaring mold is performing the flaring operation, the other flaring molds are moved upwards to reset. This avoids radial space congestion and facilitates operation and adjustment.

[0012] Furthermore, the positioning plate has a guide groove arranged radially along the clearance hole, and one end of the guide groove facing the clearance hole communicates with the clearance hole; the second linear telescopic mechanism includes a slider slidably disposed in the guide groove, and one end of the slider facing the clearance hole has the limiting correction part; the slider also has a pin arranged axially along the clearance hole, and the bottom of the guide groove has a guide groove corresponding to the pin, the width of the guide groove being the same as the diameter of the pin and arranged along the length direction of the guide groove; the pin extends axially into the guide groove and is slidably engaged in the guide groove;

[0013] The positioning plate has two rotatable pin plates arranged side by side. The pin plates are generally annular and coaxial with the clearance holes. The pin plates have elongated drive grooves that are inclined to one side of the pin plate in the radial direction. The annular area of ​​the drive groove in the circumferential direction overlaps with the annular area of ​​the guide groove in the circumferential direction in the axial direction. The width of the drive groove is the same as the diameter of the pin. The pin extends into the drive groove in the axial direction and is slidably fitted into the drive groove. There are z guide grooves and drive grooves evenly distributed in the circumferential direction, corresponding one to one. A drive device for driving the pin plates to rotate is connected to the pin plates.

[0014] In this configuration, since the guide chute and guide groove are aligned radially, while the drive chute is radially inclined circumferentially, and the positioning plate containing the guide chute is fixed, when the drive device rotates the pin plate, the pin slides simultaneously within both the guide chute and the drive chute, ultimately causing the slider to extend and retract radially within the guide groove. This structure, using a single drive device, can simultaneously drive the extension and retraction of z sliders, significantly reducing equipment costs. Furthermore, the smaller circumferential dimension of the sliders facilitates the arrangement of more sliders, reducing the frequency of corrections and improving production efficiency.

[0015] Furthermore, the pin plate has a connecting plate extending radially outward, and the driving device is a third linear telescopic mechanism, the two ends of which are respectively hinged to the positioning plate and the connecting plate.

[0016] In this way, when the third linear telescopic mechanism extends or retracts, it will pull the connecting plate and drive the pin disc to rotate.

[0017] Furthermore, it also includes a centering support plate that is cylindrical in shape. The diameter of the centering support plate is larger than the inner diameter of the stator where the stator coil to be flared is located, and smaller than the minimum inner diameter of the stator slot on the stator where the stator coil to be flared is located. The lower end of the centering support plate has a centering part with a gradually decreasing diameter. The centering part is in the shape of an inverted frustum, and the minimum diameter is smaller than the inner diameter of the stator where the stator coil to be flared is located. The centering support plate is coaxially arranged inside the flaring mold and is installed on the top plate assembly through a vertically downward-facing fourth linear telescopic mechanism.

[0018] In this way, before flaring, the centering support plate is lowered by the fourth linear telescopic mechanism. The centering part keeps the stator where the stator coil to be flared is located and the flaring mold in a centered state. At the same time, the stator is fixed between the stator positioning seat and the centering support plate, which facilitates the subsequent flaring operation.

[0019] Furthermore, the top plate assembly includes a top plate and a movable template. The fourth linear telescopic mechanism is vertically mounted on the top plate, and the movable template is mounted on the lower end of the fourth linear telescopic mechanism. The centering support plate is mounted on the movable template, and the flared template is mounted on the movable template through the first linear telescopic mechanism.

[0020] In use, the fourth linear telescopic mechanism drives the movable template to move downwards. The first linear telescopic mechanism, the flaring mold, and the centering support plate, all mounted on the movable template, move downwards together. The centering support plate first aligns with the stator. At this point, the fourth linear telescopic mechanism can remain stationary in the aligned state. During flaring, the first linear drive mechanism drives the flaring template to continue moving downwards, allowing the flaring mold to finally complete the flaring process.

[0021] As a further optimization, two flaring dies are coaxially sleeved. The flaring template of the outer flaring die is fixedly installed on the movable template, and the flaring template of the inner flaring die is installed on the movable template through the first linear telescopic mechanism. Both the centering support plate and the flaring template of the inner flaring die have axially penetrating guide holes. The movable template has guide shafts corresponding to the guide holes. The centering support plate is coaxially disposed inside the inner flaring die, and the guide shafts slidably pass through the guide holes on the flaring template and the centering support plate in sequence. An elastic element is provided between the centering support plate and the flaring template of the inner flaring die.

[0022] In use, the fourth linear telescopic mechanism drives the movable template downwards. The first linear telescopic mechanism, the flaring die, and the centering support plate, all mounted on the movable template, move downwards together until the centering support plate aligns with the stator. At this point, the first linear drive mechanism drives the inner flaring template and flaring die to continue moving downwards. Because the centering support plate is blocked by the stator, it cannot move further. The inner flaring template then compresses the elastic element, continuing to move downwards while ensuring the centering support plate remains in the centering state. After completing the innermost flaring work, the first linear drive mechanism retracts and resets. Then, the fourth linear telescopic mechanism is driven to continue driving the movable template downwards. At this time, the inner and outer flaring dies move downwards simultaneously. The inner flaring template compresses the elastic element, and the outer flaring die completes the outer flaring work. In the above structure, the deformation characteristics of the elastic element can maintain the centering support plate and meet the requirements of the inner and outer flaring die downward movement space. Therefore, the same fourth linear telescopic mechanism can be used to control the outer flaring die and the centering support plate respectively by means of the stroke, reducing one linear telescopic mechanism. The structure is ingenious and reduces costs.

[0023] As an optimization, the first linear telescopic mechanism includes a vertically extending telescopic rod, and a locking cylinder is installed on the movable template. The locking cylinder is located at the upper end of the first linear telescopic mechanism and is radially opposite to the telescopic rod. The upper end of the telescopic rod has a locking part, so that after the telescopic rod of the first linear telescopic mechanism extends downward, the locking cylinder can extend to the locking part to restrict the axial movement of the telescopic rod.

[0024] In order to keep the flared wire in the flared state, the flaring die needs to remain in the flared position for a period of time after it moves down to the position. By extending the locking cylinder to the locking part, the first linear telescopic mechanism can be better kept in the extended state.

[0025] Furthermore, the base plate assembly includes a base plate and a support plate, a lifting mechanism for lifting the support plate is vertically mounted on the base plate, and the stator positioning seat is mounted on the support plate.

[0026] In summary, this invention has the advantages of reasonable structural design, convenient operation and use, and is conducive to reducing equipment costs and improving production efficiency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this embodiment.

[0028] Figure 2 This is a schematic diagram of the flaring device.

[0029] Figure 3 This is a schematic diagram of the limit correction mechanism.

[0030] Figure 4 This is a schematic diagram of the exploded structure of the limit correction mechanism.

[0031] Figure 5 This is a structural diagram of the flaring die section.

[0032] Figure 6 for Figure 5 A cross-sectional structural diagram.

[0033] Figure 7 This is a structural schematic diagram of the base plate assembly and the flaring mold section.

[0034] Figure 8 and Figure 9 This is a structural schematic diagram of the base plate and stator positioning seat. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to a stator assembly production line employing the structure of the present invention.

[0036] In practical implementation: such as Figures 1-9 As shown, a motor stator assembly production line includes a stator coil flaring section. The stator coil flaring section includes two parallel conveying tracks and a matching flaring device for motor stator coils. The motor stator coil flaring device includes a base plate assembly 1 and a top plate assembly 2 mounted above the base plate assembly 1. The base plate assembly 1 includes a base plate 12 horizontally positioned below the conveying tracks and a pallet 13 movably placed on the conveying tracks. A lifting mechanism 14 for lifting the pallet 13 is vertically mounted on the base plate 12.

[0037] The support plate 13 is provided with a stator positioning seat 11 for vertically positioning the stator coil to be flared. The top plate assembly 2 has a first linear telescopic mechanism 21 arranged vertically downward. The telescopic part at the lower end of the first linear telescopic mechanism 21 is connected to a flaring template 22. Below the flaring template 22 is a cylindrical flaring mold 23. The flaring mold 23 is coaxially arranged with the stator coil to be flared, which is positioned on the stator positioning seat 11. The inner diameter of the flaring mold 23 matches the minimum diameter of the part to be flared, the thickness of the flaring mold 23 matches the width of the part to be flared, and the lower end is a blade shape with gradually decreasing thickness.

[0038] In use, when the pallet containing the stator coil to be flared, which has completed the previous process, reaches above the lifting mechanism 14, the lifting mechanism rises, lifting the pallet off the track. Then, the telescopic end of the first linear telescopic mechanism drives the flaring template downward. Because the lower end of the flaring template is blade-shaped, it can be well inserted between the two sets of wires in the part to be flared. Subsequently, the flaring template moves further downward and is inserted into the flaring part. Since the thickness of the flaring template matches the width of the flaring, the part to be flared can be flared after the flaring template is inserted into place. The above structure only requires one action and one drive mechanism to complete one flaring cycle, which can improve the efficiency of flaring, reduce the cost of equipment, and simplify the drive mechanism, which helps to reduce the failure rate and improve the stability of equipment operation.

[0039] When implementing, such as Figure 3 As shown, it also includes a limiting correction mechanism 3 disposed between the base plate assembly 1 and the top plate assembly 2. The limiting correction mechanism 3 includes a horizontally disposed positioning plate 31. The center of the positioning plate 31 has a clearance hole for the stator coil to be flared to pass through. The positioning plate 31 has a second linear telescopic mechanism 32 disposed radially inward along the clearance hole. The telescopic end of the second linear telescopic mechanism 32 has a limiting correction part for pressing the wire. The second linear telescopic mechanism 32 is evenly distributed in z positions along the circumference of the clearance hole, and z = Z / n, where Z is the number of stator slots of the stator coil to be flared, and n is a positive integer.

[0040] During operation, after the flaring die lowers to complete the flaring process, the conductor on the outer side of the flaring die will tilt outwards as a whole. Using the second linear telescopic mechanism, this mechanism can extend inwards to compress the conductor, preventing it from tilting outwards. If n is 1, the limiting correction part can be moved to a designated position before flaring, or moved inwards after flaring, to restrict the outward tilt of the conductor on the outer side of the flaring die and correct the conductor, thus ensuring the assembly quality after flaring. If n is greater than 1, after flaring, some conductors can be corrected, and the stator containing the stator coil to be flared can be rotated relative to the second linear telescopic mechanism by one stator slot position, repeating this correction process multiple times.

[0041] like Figure 4As shown, in this embodiment, to simplify tooling and improve production efficiency, the positioning plate 31 has a guide groove arranged radially along the clearance hole, and one end of the guide groove facing the clearance hole communicates with the clearance hole; the second linear telescopic mechanism 32 includes a slider 321 slidably disposed in the guide groove, and one end of the slider 321 facing the clearance hole has the limiting correction part; the slider 321 also has a pin 322 arranged axially along the clearance hole, and the bottom of the guide groove has a guide groove 323 corresponding to the pin 322, the width of the guide groove 323 being the same as the diameter of the pin 322 and arranged along the length direction of the guide groove; the pin 322 extends axially into the guide groove 323 and is slidably engaged in the guide groove 323;

[0042] The positioning plate 31 is provided with two rotatable pin plates 324 arranged side by side. The pin plates 324 are generally annular and coaxial with the clearance holes. The pin plates 324 have elongated drive grooves 325, which are inclined to the circumferential side in the radial direction of the pin plates 324. The annular area of ​​the drive grooves 325 in the circumferential direction is axially aligned with the annular area of ​​the guide grooves 323 in the circumferential direction. The drive grooves 325 and the pin 322 overlap, with the width of the drive groove 325 matching the diameter of the pin 322. The pin 322 extends axially into the drive groove 325 and slidably engages within it. The guide grooves 323 and drive grooves 325 are evenly distributed circumferentially in a one-to-one correspondence, with z being equal to the number of stator slots Z of the stator where the stator coil to be flared is located. A drive device 326 for driving the pin plate 324 to rotate is connected to the pin plate 324.

[0043] In this configuration, since the guide chute and guide groove are aligned radially, while the drive chute is radially inclined circumferentially, and the positioning plate containing the guide chute is fixed, when the drive device rotates the pin plate, the pin slides simultaneously within both the guide chute and the drive chute, ultimately causing the slider to extend and retract radially within the guide groove. This structure, using a single drive device, can simultaneously drive the extension and retraction of z sliders, significantly reducing equipment costs. Furthermore, the smaller circumferential dimension of the sliders facilitates the arrangement of more sliders, reducing the frequency of corrections and improving production efficiency.

[0044] Specifically, the pin plate 324 has a connecting plate extending radially outward, and the driving device 326 is a third linear telescopic mechanism, with both ends of the third linear telescopic mechanism hinged to the positioning plate 31 and the connecting plate, respectively.

[0045] In this way, when the third linear telescopic mechanism extends or retracts, it will pull the connecting plate and drive the pin disc to rotate.

[0046] In this embodiment, the positioning plate 31 has a circular groove, the diameter of which matches the outer diameter of the pin plate 324. The pin plate 324 is rotatably installed in the circular groove. A guide plate 327, which is circular in shape, is fixedly installed on the positioning plate 31. The guide plate 327 is coaxially arranged with the clearance hole. The guide groove and the guide slide groove 323 are both provided on the guide plate 327. The outer diameter of the guide plate 327 is larger than the diameter of the circular groove and is fitted over the circular groove. The depth of the circular groove matches the thickness of the pin plate 324, so that the pin plate 324 is located between the positioning plate 31 and the guide plate 327. The guide slide groove 323 is provided through the guide plate 327. At the same time, in order to prevent the slider from falling out of the guide groove, a ring-shaped pressure plate 328 is also installed on the guide plate 327. The slide plate 328 has a guide slide groove corresponding to the pin.

[0047] In practice, it also includes a centering support plate 24 that is cylindrical in shape. The diameter of the centering support plate 24 is larger than the inner diameter of the stator where the stator coil to be flared is located, and smaller than the minimum inner diameter of the stator slot on the stator where the stator coil to be flared is located. The lower end of the centering support plate 24 has a centering part with a gradually decreasing diameter. The centering part is in the shape of an inverted frustum, and the minimum diameter is smaller than the inner diameter of the stator where the stator coil to be flared is located. The centering support plate 24 is coaxially arranged inside the flaring mold 23 and is mounted on the top plate assembly 2 by a fourth linear telescopic mechanism 25 that is vertically downward.

[0048] In this way, before flaring, the centering support plate is lowered by the fourth linear telescopic mechanism. The centering part keeps the stator where the stator coil to be flared is located and the flaring mold in a centered state. At the same time, the stator is fixed between the stator positioning seat and the centering support plate, which facilitates the subsequent flaring operation.

[0049] In specific implementation, to meet the multi-layer flaring requirements of the stator coil, at least two flaring molds 23 can be coaxially sleeved, and each flaring mold 23 and its corresponding flaring template 22 are respectively mounted on the top plate assembly 2 using the corresponding first linear telescopic mechanism 21; the inner diameter of each flaring mold 23 matches the minimum diameter of the corresponding flaring part. Meanwhile, to allow the inner flaring mold 23 and flaring template 22 to pass through the outer flaring template 22, some of the flaring templates 22 can be made into annular shapes as needed.

[0050] In practice, the flaring mold 23 and the corresponding flaring template 22 can be set separately or formed as one piece.

[0051] The stator coil in this embodiment requires two layers of flaring, such as... Figure 5 and Figure 6 As shown, the top plate assembly 2 includes a top plate 26 and a movable template 27. The fourth linear telescopic mechanism 25 is vertically installed on the top plate 26. The movable template 27 is installed at the lower end of the fourth linear telescopic mechanism 25. The centering support plate 24 is installed on the movable template 27. The flared template 22 is installed on the movable template 27 through the first linear telescopic mechanism 21.

[0052] Two flaring molds 23 are coaxially sleeved. The flaring template 22 of the outer flaring mold 23 is fixedly installed on the movable template 27, and the flaring template 22 of the inner flaring mold 23 is installed on the movable template 27 through the first linear telescopic mechanism 21. Both the centering support plate 24 and the flaring template 22 of the inner flaring mold 23 have axially penetrating guide holes 241. The movable template 27 has guide shafts 242 corresponding to the guide holes. The centering support plate 24 is coaxially disposed inside the inner flaring mold 23, and the guide shaft 242 slidably passes through the guide holes 241 on the centering support plate 24 and the flaring template 22. An elastic element 243 is provided between the centering support plate 24 and the flaring template 22 of the inner flaring mold 23.

[0053] In use, the fourth linear telescopic mechanism drives the movable template downwards. The first linear telescopic mechanism, the flaring die, and the centering support plate, all mounted on the movable template, move downwards together until the centering support plate aligns with the stator. At this point, the first linear drive mechanism drives the inner flaring template and flaring die to continue moving downwards. Because the centering support plate is blocked by the stator, it cannot move further. The inner flaring template then compresses the elastic element, continuing to move downwards while ensuring the centering support plate remains in the centering state. After completing the innermost flaring work, the first linear drive mechanism retracts and resets. Then, the fourth linear telescopic mechanism is driven to continue driving the movable template downwards. At this time, the inner and outer flaring dies move downwards simultaneously. The inner flaring template compresses the elastic element, and the outer flaring die completes the outer flaring work. In the above structure, the deformation characteristics of the elastic element can maintain the centering support plate and meet the requirements of the inner and outer flaring die downward movement space. Therefore, the same fourth linear telescopic mechanism can be used to control the outer flaring die and the centering support plate respectively by means of the stroke, reducing one linear telescopic mechanism. The structure is ingenious and reduces costs.

[0054] Additionally, the first linear telescopic mechanism 21 includes a vertically extending telescopic rod. A locking cylinder 28 is mounted on the movable template 27. The locking cylinder 28 is located at the upper end of the first linear telescopic mechanism 21 and is radially aligned with the telescopic rod. The upper end of the telescopic rod has a locking portion, so that after the telescopic rod of the first linear telescopic mechanism 21 extends downward, the locking cylinder 28 can extend to the locking portion to restrict the axial movement of the telescopic rod. Figure 6 As shown, in this embodiment, the locking part is the upper end of the telescopic rod.

[0055] The first, second, third, and fourth linear telescopic mechanisms can be piston-type electric cylinders or pneumatic cylinders.

[0056] In addition, in this embodiment, to ensure that the bottom plate, top plate, positioning plate, and movable template are all kept parallel to each other, guide columns are also provided. Specifically, the guide columns are configured as follows:

[0057] The top plate is fixedly mounted on the base plate via first guide posts at its four corners. Second guide posts pointing upwards are fixedly mounted at the four corners of the movable template and slidably mounted on the top plate via corresponding guide sleeves. The positioning plate is slidably mounted on the first guide posts via guide sleeves. The positioning plate 31 also has vertically arranged support posts 33 at its four corners. A support plate 34 is mounted on the upper end of each support post 33, and a vertically mounted piston-type electric cylinder 35 is located between the support plate 34 and the top plate. This allows for adjustment of the positioning plate's height, making it suitable for motors with different shaft lengths.

[0058] In addition, in order to adapt to different stator coils and change the mold, the movable template 27 includes a movable mold base plate 271 with a second guide post installed, and a mold mounting plate 272 is installed at the bottom of the movable mold base plate 271.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A flaring device for motor stator coils, characterized in that, The system includes a base plate assembly (1) and a top plate assembly (2) mounted above the base plate assembly (1). The base plate assembly (1) has a stator positioning seat (11) for vertically positioning the stator coil to be flared. The top plate assembly (2) has a vertically downward-facing first linear telescopic mechanism (21). A flaring template (22) is connected to the telescopic portion at the lower end of the first linear telescopic mechanism (21). Below the flaring template (22) is a cylindrical flaring mold (23). The flaring mold (23) is coaxially positioned with the stator coil to be flared, which is located on the stator positioning seat (11). The inner diameter of the flaring mold (23) matches the minimum diameter of the part to be flared. The thickness of the flaring mold (23) matches the width of the flaring, and the lower end is a blade shape with a gradually decreasing thickness; it also includes a centering support plate (24) that is cylindrical in shape. The diameter of the centering support plate (24) is greater than the inner diameter of the stator where the stator coil to be flared is located, and less than the minimum inner diameter of the stator slot on the stator where the stator coil to be flared is located; the lower end of the centering support plate (24) has a centering part with a gradually decreasing diameter. The centering part is in the shape of an inverted frustum, and the minimum diameter is less than the inner diameter of the stator where the stator coil to be flared is located; the centering support plate (24) is coaxially arranged inside the flaring mold (23) and is installed on the top plate assembly (2) by a fourth linear telescopic mechanism (25) arranged vertically downward.

2. The flaring device for motor stator coils as described in claim 1, characterized in that, It also includes a limiting correction mechanism (3) disposed between the base plate assembly (1) and the top plate assembly (2). The limiting correction mechanism (3) includes a horizontally disposed positioning plate (31). The positioning plate (31) has a clearance hole in the middle for the stator where the stator coil to be expanded is located to pass through. The positioning plate (31) has a second linear telescopic mechanism (32) disposed radially inward along the clearance hole. The telescopic end of the second linear telescopic mechanism (32) has a limiting correction part for extruding the wire. The second linear telescopic mechanism (32) is evenly distributed in z positions along the circumference of the clearance hole, and z = Z / n, where Z is the number of stator slots of the stator where the stator coil to be expanded is located, and n is a positive integer.

3. The flaring device for motor stator coils as described in claim 2, characterized in that, At least two flaring molds (23) are coaxially sleeved, and each flaring mold (23) is respectively set on the top plate assembly (2) by the corresponding first linear telescopic mechanism (21); the inner diameter of each flaring mold (23) is matched with the minimum diameter of the corresponding flaring part.

4. The flaring device for motor stator coils as described in claim 2, characterized in that, The positioning plate (31) has a guide groove arranged radially along the clearance hole, and one end of the guide groove facing the clearance hole communicates with the clearance hole; the second linear telescopic mechanism (32) includes a slider (321) slidably disposed in the guide groove, and one end of the slider (321) facing the clearance hole has the limiting correction part; the slider (321) also has a pin (322) arranged axially along the clearance hole, and the bottom of the guide groove has a guide groove (323) corresponding to the pin (322), the width of the guide groove (323) is the same as the diameter of the pin (322), and is arranged along the length direction of the guide groove; the pin (322) extends axially into the guide groove (323) and is slidably disposed in the guide groove (323); The positioning plate (31) is provided with rotatable pin plates (324) arranged side by side. The pin plates (324) are generally annular and coaxial with the clearance hole. The pin plates (324) have elongated drive grooves (325). The drive grooves (325) are inclined to one side of the pin plates (324) in the radial direction towards the circumferential direction. The annular area of ​​the drive grooves (325) in the circumferential direction is the same as that of the guide grooves (323) in the circumferential direction. The annular regions overlap each other in the axial direction. The width of the drive groove (325) is the same as the diameter of the pin (322). The pin (322) extends into the drive groove (325) in the axial direction and is slidably fitted in the drive groove (325). The guide groove (323) and the drive groove (325) are evenly distributed in the circumferential direction in a one-to-one correspondence. The pin plate (324) is connected to a drive device (326) for driving the pin plate (324) to rotate.

5. The flaring device for motor stator coils as described in claim 4, characterized in that, The pin plate (324) has a connecting plate that extends radially outward, and the driving device (326) is a third linear telescopic mechanism, with both ends of the third linear telescopic mechanism hinged to the positioning plate (31) and the connecting plate, respectively.

6. The flaring device for motor stator coils as described in claim 1, characterized in that, The top plate assembly (2) includes a top plate (26) and a movable template (27). The fourth linear telescopic mechanism (25) is vertically installed on the top plate (26). The movable template (27) is installed at the lower end of the fourth linear telescopic mechanism (25). The centering support plate (24) is installed on the movable template (27). The flared template (22) is installed on the movable template (27) through the first linear telescopic mechanism (21).

7. The flaring device for motor stator coils as described in claim 6, characterized in that, Two flaring molds (23) are coaxially sleeved. The flaring template (22) of the outer flaring mold (23) is fixedly installed on the movable template (27), and the flaring template (22) of the inner flaring mold (23) is installed on the movable template (27) through the first linear telescopic mechanism (21). Both the centering support plate (24) and the flaring template (22) of the inner flaring mold (23) have guide holes (241) that are axially connected. The movable template (27) has a guide shaft (242) corresponding to the guide hole. The centering support plate (24) is coaxially disposed in the flaring mold (23) located in the inner layer. The guide shaft (242) can slide through the guide hole (241) on the centering support plate (24) and the flaring template (22). There is an elastic element (243) between the centering support plate (24) and the flaring template (22) of the flaring mold (23) located in the inner layer.

8. The flaring device for motor stator coils as described in claim 7, characterized in that, The first linear telescopic mechanism (21) includes a vertically extending telescopic rod. A locking cylinder (28) is installed on the movable template (27). The locking cylinder (28) is located at the upper end of the first linear telescopic mechanism (21) and is radially opposite to the telescopic rod. The upper end of the telescopic rod has a locking part, so that after the telescopic rod of the first linear telescopic mechanism (21) extends downward, the locking cylinder (28) can extend to the locking part to restrict the axial movement of the telescopic rod.

9. The flaring device for motor stator coils as described in claim 1, characterized in that, The base plate assembly (1) includes a base plate (12) and a support plate (13). A lifting mechanism (14) for lifting the support plate (13) is vertically installed on the base plate (12), and the stator positioning seat (11) is installed on the support plate (13).

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