A flaring device for stator slot openings

Abstract

The utility model provides a kind of flaring device of stator winding slot, including rack, flaring pin is set on rack, it is set in rack with horizontal lying posture;Profiling rest, it is used to place stator in side lying posture on it, and the opening direction of stator is directly opposite flaring pin, flaring pin can penetrate stator;Guiding body, it is set on a platform with profiling rest, platform is movably set on rack by driving mechanism, the lateral linear motion of platform relative to rack is realized by driving mechanism, to make stator close or away from flaring pin, guiding groove is set on guiding body, which can be penetrated by flaring pin;Several flaring wedge strips, it is set on the outer circumferential surface of flaring pin in circumferential array, and the extension direction of flaring wedge strip is consistent with the length direction of flaring pin.The utility model scheme realizes the automation operation of stator flaring, improves processing efficiency and consistency by accurate positioning and guiding, avoids the uncertainty of manual operation, and saves manpower and material resources.

Description

Technical Field

[0001] This utility model relates to the field of motor stator manufacturing technology, specifically, it demonstrates a device for widening the stator winding slot. Background Technology

[0002] Currently, all existing motor cores require winding after stamping. However, due to the relatively small stator slots, winding is not feasible, making it difficult to increase the magnetic flux of the core and thus hindering motor performance improvement. Therefore, a stator flaring process is necessary, such as... Figure 1 As shown, the two extensions at the ends of the winding slots on the inner wall of the stator need to be widened outward (separated) to allow for subsequent winding of the winding slots.

[0003] However, most existing stator winding slot flaring devices rely on manual expansion using expansion tools, which results in low processing efficiency and poor processing quality for the stator. They are also prone to uneven expansion and waste manpower and resources. Utility Model Content

[0004] The purpose of this invention is to provide a flaring device for stator winding slots, which has a simple and practical structure and high flaring efficiency.

[0005] The technical solution is as follows: A flaring device for stator winding slots includes a frame, on which are mounted: The flared pin is mounted horizontally on the frame. A contoured support is used to place a stator in a side-lying position, with the opening of the stator facing the flared pin, which can pass through the stator. The guide body, together with the contoured support, is set on a platform. The platform is movably set on the frame by a drive mechanism. The drive mechanism realizes the lateral linear movement of the platform relative to the frame so that the stator moves closer to or away from the flaring pin. The guide body is provided with a guide groove through which the flaring pin can pass. Several flared wedges are arranged in a circular array on the outer circumferential surface of the flared pin, and the extension direction of the flared wedges is consistent with the length direction of the flared pin. The number and position of the flared wedges correspond one-to-one with the number and position of the winding slots on the inner wall of the stator.

[0006] In addition, the above embodiments of this utility model may also have the following additional technical features: According to one embodiment of the present invention, the front end of the flared wedge is configured as a wedge-shaped portion. The wedge-shaped structure at the front end of the flared wedge allows for smooth insertion into the stator slot, reducing initial impact and resistance.

[0007] In one embodiment, contact channels are recessed on both outer walls of the flared wedge, and these contact channels are arranged along the length of the flared wedge. This better allows the extension at the end of the winding slot to bend outward.

[0008] According to one embodiment of this utility model, the guide body is further provided with a plurality of slots, the number and position of which correspond one-to-one with the number and position of the flared wedges, and the slots are for the insertion of the flared wedges. The slots provide precise guidance and positioning points for the flared wedges, ensuring that the flared wedges are completely aligned with the stator slots during movement.

[0009] According to one embodiment of this utility model, the central part of the contour-following support is constructed into a semi-circular groove, and a sealing plate is provided on each side of the contour-following support. A notch or groove is formed on the sealing plate, the size of which is smaller than the size of the groove. The groove shape of the contour-following support matches the outer contour of the stator, providing a stable support surface. The notch or groove on the sealing plate is smaller than the groove of the contour-following support, creating a clamping effect and effectively limiting the axial displacement of the stator.

[0010] According to one embodiment of this utility model, the guide body is connected to a bracket, the bracket is movably mounted on the platform via a first slider rail assembly, and a first driving component is provided on the platform, which enables the bracket to move laterally linearly relative to the platform. This allows the guide body to make fine adjustments independently of the platform, which can both assist in positioning the stator and facilitate timely engagement of the flared pin.

[0011] According to one embodiment of this utility model, the driving mechanism includes a second slider rail assembly and a second driving component. The platform is movably mounted on the frame via the second slider rail assembly, and the second driving component is mounted on the frame. The second driving component enables the platform to move laterally and linearly relative to the frame. This provides a smooth and controllable linear motion mechanism, ensuring that the stator on the platform can accurately and uniformly approach or move away from the flared pin.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The flared pin is placed horizontally, which, in conjunction with the side-lying posture of the stator, allows the flared pin to be directly inserted into the stator in a horizontal direction. This simplifies the device structure, reduces the need for manual adjustment, and thus improves processing efficiency. 2. The number and position of the flaring wedges correspond one-to-one with the stator winding slots, ensuring that each winding slot can be flared simultaneously and uniformly. This solves the problems of uneven force and uneven expansion that may occur with manual flaring, and improves the processing quality. 3. The platform achieves lateral linear motion through the drive mechanism, enabling the stator to automatically move closer to or away from the flaring pin, thus automating the flaring process, replacing manual operation, significantly improving processing efficiency, and reducing labor costs. Attached Figure Description

[0013] Figure 1 This is a simplified schematic diagram of a flaring device for a stator winding slot according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the flared pin portion in an embodiment of the present utility model; Figure 3 This is a schematic diagram of the flared wedge strip according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the guide body portion in an embodiment of the present invention; Figure 5 This is a schematic diagram of the contour-following shelf in an embodiment of the present invention; The relevant markings in the attached diagram are: a-stator, b-winding slot, 1-frame, 2-flaring pin, 3-contour support, 4-guide body, 5-platform, 6-drive mechanism, 7-flaring wedge; 31-slot, 32-sealing plate, 33-notch slot, 41-guide slot, 42-slot, 51-bracket, 52-first slider rail assembly, 53-first drive component, 61-second slider rail assembly, 62-second drive component, 71-wedge, 72-contact channel. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] See Figures 1 to 5As shown in the figure, this utility model embodiment proposes a flaring device for a stator winding slot, including a frame 1, and a flaring pin 2, a contouring support 3, a guide 4, and a platform 5 disposed on the frame 1. The flaring pin 2 is typically designed as a cylinder, and it is disposed horizontally on the frame 1, that is, the flaring pin 2 is disposed parallel to the surface of the frame 1, and a certain gap is left between the flaring pin 2 and the surface of the frame 1. The contouring support 3 and the guide 4 are disposed together on the platform 5, and the platform 5 is movably disposed on the frame 1 by a drive mechanism 6, that is, the drive mechanism 6 realizes the lateral linear movement of the platform 5 relative to the frame 1; the contouring support 3 is used to place a stator a in a sideways position, and the opening direction of the placed stator a is directly facing the head end of the flaring pin 2, that is, after placement, the center of the stator coincides with the central axis of the flaring pin, and the flaring pin 2 can move through the stator a during the movement of the platform. The guide body 4 is provided with a guide groove 41 through which the flared pin 2 can pass. That is, during the movement of the platform, the flared pin 2 first passes through the stator a and then through the guide groove 41. The guide groove plays a guiding role, preventing the flared pin from deviating or vibrating during its movement, and ensuring the linear movement accuracy of the flared pin. This helps to improve the uniformity of the flaring and reduce damage to the groove caused by misalignment.

[0016] Among them, a number of flared wedges 7 are arranged in a circular array on the outer circumferential surface of the flared pin 2, and the extension direction of the flared wedges 7 is consistent with the length direction of the flared pin 2, that is, they are long and flat. The number and position of the flared wedges 7 correspond one-to-one with the number and position of the winding slots b on the inner wall of the stator a. That is to say, during the movement of the platform 5, the stator a on the contouring support 3 gradually approaches the flared pin 2. When the head end of the flared pin 2 enters the interior of the stator a, the number of flared wedges 7 just squeeze into the winding slots b of the stator a one by one, gradually completing the flaring action of the winding slots b. Then the flared pin 2 enters the guide groove 41 of the guide body 4, so that a sufficient distance of displacement is formed between the stator a and the flared wedges 7 on the flared pin 2, which fully ensures the flaring effect.

[0017] In one embodiment, the front end of the flared wedge 7 is configured as a wedge portion 71. The wedge-shaped structure at the front end of the flared wedge 7 allows the flared wedge to be smoothly inserted into the winding slot in the stator, reducing initial impact and resistance. This reduces stress concentration on the stator material during the flaring process and avoids tearing or deformation at the end edge of the slot, thereby improving the flaring quality. At the same time, the wedge portion guides the flaring process more smoothly, ensuring a uniform distribution of flaring force and further improving the uniformity and consistency of the flaring.

[0018] The flared wedge 7 has a contact groove 72 recessed on both outer walls. The contact groove 72 is arranged along the length of the flared wedge 7. The horizontal base of the contact groove 72 is slightly lower than the horizontal base of other parts of the flared wedge 7. When the flaring operation is performed, the main body of the flared wedge enters the middle position of the winding slot in the stator, while the contact groove part is squeezed and contacted with the two extensions at the end of the winding slot. This better forces the extensions at the end of the winding slot to bend outward.

[0019] In one embodiment, the guide body 4 is further provided with a plurality of slots 42, the number and position of which correspond one-to-one with the number and position of the flared wedges 7. The slots 42 are for the insertion of the flared wedges 7. The slots provide precise guidance and positioning points for the flared wedges, ensuring that the flared wedges are completely aligned with the stator winding slots during movement. This avoids collisions or misalignments between the flared wedges and the guide body, and improves the stability and reliability of the device.

[0020] In one embodiment, the central part of the contouring support 3 is constructed as a semi-circular slot 31, and a sealing plate 32 is provided on each side of the contouring support 3. A notch 33 is formed on the sealing plate 32, the size of which is smaller than the size of the slot 31. The slot shape of the contouring support matches the outer contour of the stator, providing a stable support surface. The notch size on the sealing plate is smaller than the slot size of the contouring support, and the sealing plates on both sides form a clamping effect, effectively limiting the axial displacement of the stator and preventing the stator from sliding out of the support. This enhances operational safety and reduces machining errors caused by stator displacement, thereby improving machining quality.

[0021] In one embodiment, the guide body 4 is connected to a bracket 51. The bracket 51 is movably mounted on the platform via a first slider rail assembly 52, and a first drive component 53 is provided on the platform 5. The first drive component 53 realizes the lateral linear movement of the bracket 51 relative to the platform 5. The bracket allows the guide body to make fine adjustments independently of the platform, which can assist in positioning the stator, such as driving the guide body close to the contour placement seat, with the guide body and the flaring pin clamping the stator from the left and right, and can also promptly engage the flaring pin to ensure the alignment accuracy of the flaring wedge and the stator slot.

[0022] In this embodiment, the drive mechanism 6 includes a second slider rail assembly 61 and a second drive component 62. The platform 5 is movably mounted on the frame 1 via the second slider rail assembly 61, and the second drive component 62 is mounted on the frame 1. The second drive component 62 enables the platform 5 to move laterally linearly relative to the frame 1. This drive mechanism provides a smooth and controllable linear motion mechanism, ensuring that the stator on the platform can accurately and uniformly approach or move away from the flaring pin, thus guaranteeing the stability of the flaring process. The use of the drive component enables automated feeding and improves processing efficiency.

[0023] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A device for widening the opening of a stator winding slot, comprising a frame (1), characterized in that, The frame (1) is equipped with: The flared pin (2) is set in a horizontal position on the frame (1); A contoured support (3) is used to place a stator in a side-lying position, and the opening of the stator faces the flared pin (2), which can penetrate the stator. The guide body (4) is set on a platform (5) together with the contoured support (3). The platform (5) is movably set on the frame (1) by the drive mechanism (6). The drive mechanism (6) realizes the lateral linear movement of the platform (5) relative to the frame (1) so that the stator moves closer to or away from the flared pin (2). The guide body (4) is provided with a guide groove (41) through which the flared pin (2) can pass. Several flared wedges (7) are arranged in a circular array on the outer circumferential surface of the flared pin (2), and the extension direction of the flared wedges (7) is consistent with the length direction of the flared pin (2). The number and position of the flared wedges (7) correspond one-to-one with the number and position of the winding slots on the inner wall of the stator.

2. The flaring device for a stator winding slot according to claim 1, characterized in that, The front end of the flared wedge (7) is configured as an oblique wedge (71).

3. The flaring device for a stator winding slot according to claim 2, characterized in that, The outer walls on both sides of the flared wedge (7) are recessed to form contact channels (72), which are arranged along the length of the flared wedge (7).

4. The flaring device for a stator winding slot according to claim 1, characterized in that, The guide body (4) is also provided with a number of slots (42), the number and position of the slots (42) correspond one-to-one with the number and position of the flared wedges (7), and the slots (42) are for the flared wedges (7) to be inserted.

5. The flaring device for a stator winding slot according to claim 1, characterized in that, The center of the contoured shelf (3) is constructed into a semi-circular groove (31), and a sealing plate (32) is provided on each side of the contoured shelf (3). A notch (33) is opened on the sealing plate (32), and the size of the notch (33) is smaller than the size of the groove (31).

6. The flaring device for a stator winding slot according to claim 1, characterized in that, The guide body (4) is connected to a bracket (51). The bracket (51) is movably mounted on the platform (5) via a first slider rail assembly (52). A first drive component (53) is mounted on the platform (5), and the first drive component (53) enables the bracket (51) to move laterally in a straight line relative to the platform (5).

7. The flaring device for a stator winding slot according to claim 1, characterized in that, The drive mechanism (6) includes a second slider rail assembly (61) and a second drive component (62). The platform (5) is movably mounted on the frame (1) via the second slider rail assembly (61). The second drive component (62) is mounted on the frame (1) and the second drive component (62) enables the platform (5) to move laterally relative to the frame (1).

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