Motor stator coil inserting tool and motor stator coil inserting equipment

Abstract

The utility model provides a motor stator coil inserting tool and motor stator coil inserting equipment. The tool comprises a guide bar tool, a second push head and an inner support push head. The conducting bar tool is in a hollow cylinder shape, wide conducting bars and narrow conducting bars of the conducting bar tool are alternately arranged around the axial center line of the motor stator iron core, gaps corresponding to winding coil grooves are formed between the adjacent wide conducting bars and narrow conducting bars, and the conducting bar tool is used for embedding winding coils into the stator iron core. The second push head is cylindrical, the outer diameter of the second push head is smaller than the inner diameter of the guide bar tool, and the second push head pushes the winding coil to move towards the stator core in the radial direction of the stator core when moving in the axial direction of the stator core. The middle of the inner supporting push head is cylindrical, a plurality of supporting columns are arranged on the outer edge of the inner supporting push head in a surrounding mode, when the stator iron core is embedded into the winding coil, the inner supporting push head is arranged on the side, close to the stator iron core, of the second push head and right faces the second push head, and after the inner supporting push head enters the inner side of the guide bar tool, the multiple supporting columns make contact with the narrow guide bars in a one-to-one correspondence mode and are used for supporting the guide bar tool. The tool keeps stable when the stator iron core is embedded into the winding coil.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of motor technology, and specifically to a motor stator wire embedding tool and a motor stator wire embedding device. Background Art

[0002] When the motor stator core is embedded with wire, the existing tooling does not provide support and fixation, which makes it easy for relative movement to occur, thereby causing the coil winding to be easily damaged when it is embedded in the coil slot. Utility Model Content

[0003] The embodiments of the present application provide a motor stator wire-inserting tool and a motor stator wire-inserting device, which can prevent the wire-inserting tool from moving relative to the motor stator core during wire-inserting, thereby preventing the motor stator core winding coil from being damaged.

[0004] In a first aspect, embodiments of the present application provide a motor stator wire-insertion fixture for maintaining stability when the motor stator core is embedded in the winding coil. The motor stator wire-insertion fixture includes a guide bar fixture. The guide bar fixture includes wide and narrow guide bars, which are alternately arranged around the axial centerline of the core. Adjacent wide and narrow guide bars have gaps between them, which are used to correspond to the winding coil slots. The guide bar fixture is used to embed the winding coil into the core when the core is embedded in the winding coil.

[0005] The motor stator wire embedding tooling also includes a second pusher head, which is cylindrical. The outer diameter of the second pusher head is smaller than the inner diameter of the guide bar tooling. When the second pusher head moves along the axial center line of the motor stator core, it is used to push the winding coil along the radial direction of the motor stator core toward the direction close to the motor stator core.

[0006] The motor stator wire-embedding tooling also includes an inner support pusher head. The center of the support pusher head is cylindrical, and multiple struts are arranged around the outer edge of the inner support pusher head. When the motor stator core is embedded in the winding coil, the inner support pusher head is positioned on the side of the second pusher head close to the motor stator core and is aligned with the second pusher head along the axial centerline of the motor stator core. The inner support pusher head enters the inner side of the guide bar tooling, and the multiple struts contact the narrow guide bars in a one-to-one correspondence. The inner support pusher head is used to support the guide bar tooling. When the second pusher head moves toward the core, the inner support pusher head is driven by the second pusher head, moving toward the core and gradually entering the inner side of the motor stator core to perform the wire-embedding work.

[0007] The motor wire embedding tooling includes a guide bar tooling, a second pusher, and an inner support pusher. There is a gap between adjacent wide and narrow guide bars, and the winding coil is set in the gap. The second pusher can push the winding coil so that the winding coil is embedded in the winding coil slot. The inner support pusher is set on the side of the second pusher close to the iron core. The inner support pusher is surrounded by multiple pillars. The multiple pillars are in one-to-one contact with the narrow guide bars, which can support the narrow guide bars, improve the stability of the narrow guide bars, and avoid relative movement between adjacent wide and narrow guide bars. In addition, it can prevent the winding coil from scratching the coil slot and avoid damage to the winding coil.

[0008] In some embodiments that may include the above embodiments, the surface of any one of the plurality of pillars that contacts the narrow conductive bar is a concave arc surface, and the pillar is slidably connected to the narrow conductive bar.

[0009] The curvature of the concave arc surface is equal to the curvature of the narrow guide bar on the side close to the pillar. The narrow guide bar sliding in the arc surface fits perfectly with the arc surface of the pillar, which can increase the contact area between the pillar and the narrow guide bar, prevent the narrow guide bar from shaking in the radial and axial directions along the iron core, and improve the stability of the narrow guide bar.

[0010] At the same time, the support slides along the narrow guide bar in the axial direction of the motor stator core, which can reduce the friction between the narrow guide bar and the support, avoid the wear of the narrow guide bar and the impact on the winding coil.

[0011] In some embodiments that may include the above embodiments, the middle part of the internal support push head is a cylindrical solid structure, and multiple pillars are evenly distributed around the outer edge of the cylindrical solid structure. The thickness of the cylindrical solid structure and the multiple pillars along the central axis of the iron core is equal.

[0012] Multiple struts can reduce the mass of the internal support pusher head, while ensuring its strength and reducing its cost. The cylindrical solid structure and the multiple struts have equal thickness along the central axis of the core, facilitating the integrated molding of the internal support pusher head while ensuring equal strength across all parts of the head and ensuring its stability.

[0013] In some embodiments that may include the above embodiments, both sides of the connection between any one of the plurality of pillars and the cylindrical solid structure are rounded concave structures.

[0014] Two adjacent pillars enclose a storage space, within which the winding coil located inside the gap can be placed and pushed by the second pusher. The winding coil located inside the gap is confined within the storage space, ensuring its position and preventing deformation during movement, making it difficult to fit into the winding coil slot. The connection between any of the multiple pillars and the cylindrical solid structure features rounded concave surfaces on both sides to prevent scratches on the winding coil.

[0015] In some embodiments, which may include the above embodiments, the thickness of the cylindrical solid structure is less than one-third of the axial length of the core.

[0016] The thickness of the cylindrical solid structure is less than one-third of the axial length of the iron core, which can ensure the strength of the internal support push head while ensuring the moving speed of the internal support push head.

[0017] In some embodiments, which may include the above embodiments, the plurality of struts are integrally formed with the cylindrical solid structure.

[0018] The plurality of pillars and the cylindrical solid structure are integrally formed, which can ensure the thickness consistency of the plurality of pillars and the cylindrical solid structure, improve the processing efficiency of the internal support push head, and reduce the processing difficulty.

[0019] In some embodiments that may include the above embodiments, the inner support pusher head and the second pusher head are connected by a bolt structure. The inner support pusher head is provided with a plurality of first threaded holes, and the second pusher head is provided with a plurality of second threaded holes. The positions of the first threaded holes and the second threaded holes correspond to each other, so that the bolt structure passes through the first threaded holes and the second threaded holes and cooperates with the two, thereby tightly connecting the inner support pusher head and the second pusher head.

[0020] The number and position of the first and second threaded holes can be adjusted according to actual needs. The inner support pusher is connected to the second pusher by a bolt structure, which can limit the position of the inner support pusher and prevent it from circumferential movement. This prevents the support from moving in the radial direction of the core, preventing the narrow conductor from being affected by the support and moving, causing damage to the winding coil.

[0021] In some embodiments that may include the above embodiments, the internal support pusher head includes a locating pin for positioning the internal support pusher head and the second pusher head during assembly. The internal support pusher head is provided with a through hole, and the second pusher head is provided with a threaded hole. The locating pin includes a head portion and a tail portion. The head portion has a circular cross-section with a diameter equal to the diameter of the through hole. The tail portion includes external threads that mate with the threaded hole, and the tail portion has a circular cross-section with a diameter equal to the diameter of the threaded hole.

[0022] The positioning pin passes through the inner support push head and is tightened with the second push head, which can ensure that the axial center line of the inner support push head coincides with the axial center line of the second push head, thereby realizing the positioning of the inner support push head and the second push head.

[0023] In some embodiments, which may include the above embodiments, the material of the second pusher head is copper.

[0024] The second pusher head is made of copper, and the main material of the coil winding is also copper. The same materials have similar hardness, which can ensure that the second pusher head does not damage the winding coil when pushing the winding coil into the winding slot of the motor stator core.

[0025] In some embodiments that may include the above-mentioned embodiments, the motor stator wire embedding tooling includes a hydraulic lifting device, which is connected to the second pusher head. When the motor stator core is embedded in the winding coil, the hydraulic lifting device is used to lift the second pusher head to achieve the movement of the second pusher head inside the guide bar tooling.

[0026] The hydraulic lifting device is connected to the second push head, and the moving distance of the second push head can be controlled by controlling the hydraulic pressure.

[0027] In some embodiments that may include the above embodiments, the motor stator wire embedding tool further includes a positioner, which is used to complete the positioning of the iron core by cooperating with the narrow conductive bar at one end of the iron core when the iron core is embedded in the winding coil.

[0028] The positioner is used to position the iron core by cooperating with the narrow conductive bar at one end of the iron core when the iron core is embedded in the winding coil, so as to ensure that the winding coil is smoothly embedded in the winding coil slot.

[0029] In some embodiments, which may include the above embodiments, the material of the positioner is aluminum alloy.

[0030] The material of the positioner is aluminum alloy, which has low strength. When the positioner passes through the iron core, it can reduce the wear between the positioner and the iron core, ensuring the life of the motor stator wire embedding tooling. At the same time, the weight of aluminum alloy is light, which can be more convenient to operate.

[0031] On the second aspect, an embodiment of the present application provides a motor stator wire embedding device, including an operating table and the above-mentioned motor stator wire embedding tooling, the motor stator wire embedding tooling is installed on the operating table, the positioner is installed on the upper part of the operating table, the guide bar tooling, the inner support pusher head, and the second pusher head are installed in sequence from top to bottom to the lower part of the operating table, and the motor stator iron core enters from the middle of the operating table to install the wire embedding of the winding coil.

[0032] The motor stator wire embedding equipment provided in the embodiments of the present application includes the motor stator wire embedding tooling in any of the above embodiments. The motor stator wire embedding tooling is installed on the operating table in a certain order, and can ensure that the winding coil is not damaged after the electronic stator core is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 Schematic diagram of the structure of a motor in the related art;

[0034] Figure 2 It is a structural diagram of a motor stator wire embedding tool in the related art;

[0035] Figure 3 A schematic structural diagram of a motor stator wire embedding device provided in an embodiment of the present application;

[0036] Figure 4 Schematic diagram of the structure of the motor stator wire embedding tool provided in the embodiment of the present application

[0037] Figure 5 A schematic structural diagram of the guide bar tooling provided in an embodiment of the present application;

[0038] Figure 6 A schematic structural diagram of an internal support pusher head provided in an embodiment of the present application;

[0039] Figure 7 A schematic structural diagram of a second pusher head provided in an embodiment of the present application;

[0040] Figure 8 A schematic diagram of the structure of the positioning pin provided in an embodiment of the present application;

[0041] Figure 9 Schematic diagram of the structure of the locator provided in the embodiment of the present application Figure 1 ;

[0042] Figure 10 Schematic diagram of the structure of the locator provided in the embodiment of the present application Figure 2 .

[0043] Description of reference numerals:

[0044] 10: Motor; 11: Rotor; 20: Stator; 21: Iron core; 22: Winding coil slot; 30: Motor stator wire embedding tooling; 31: Positioner; 311: First groove; 312: Second groove; 313: Protrusion; 32: First pusher head; 33: Second pusher head; 331: Connecting column; 332: Middle part of second pusher head; 333: Threaded hole; 34: Internal support pusher head; 341: Pillar; 342: Solid cylindrical structure; 343: Through hole; 35: Hydraulic lifting device; 36: Locating pin; 361: Head; 362: Tail; 40: Guide bar tooling; 41: Wide guide bar; 42: Narrow guide bar; 50: Motor stator wire embedding equipment; 51: Operating table. DETAILED DESCRIPTION

[0045] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making other creative efforts are within the scope of protection of this application.

[0046] In the following, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the quantity of the technical features indicated. Therefore, a feature specified as "first," "second," etc. may explicitly or implicitly include one or more of the features.

[0047] In addition, in the embodiments of the present application, directional terms such as "up", "down", "left", "right", "horizontal" and "vertical" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they can change accordingly according to changes in the orientation of the components in the drawings.

[0048] Please refer to Figure 1 , the motor 10 includes a stator 20 and a rotor 11. The embodiment of the present application does not limit the motor 10. For example, the motor 10 may include a round wire motor. The rotor 11 is located in the magnetic field of the stator 20. The magnetic field of the stator 20 interacts with the magnetic field generated by the rotor 11, causing the rotor 11 to rotate, thereby driving the motor 10 to work. The embodiment of the present application does not limit the specific positions of the stator 20 and the rotor 11. For example, the rotor 11 can be set on the axial center line ( Figure 1 on the dotted line in ).

[0049] Continue to refer to Figure 1 The stator 20 also includes winding coils. The iron core 21 is provided with winding coil slots 22, into which the winding coils are inserted to generate a magnetic field. To insert the winding coils into the winding coil slots 22, the stator wire inserting fixture 30 is typically used to guide the winding coils into the winding coil slots 22.

[0050] Please refer to Figure 2 In the related art, the motor stator wire-inserting tool 30 includes wide conductive bars 41, narrow conductive bars 42, and a first pusher 32. The wide conductive bars 41 and the narrow conductive bars 42 are arranged parallel and spaced apart, and the winding coil is embedded in the gap between the wide conductive bars 41 and the narrow conductive bars 42. During operation, the wide conductive bars 41, the narrow conductive bars 42, and the pusher 32 move into the iron core 21, and the first pusher 32 pushes the winding coil to gradually embed it into the winding coil slot 22. However, the wide conductive bars 41 and the narrow conductive bars 42 have low strength and poor stability, and are prone to relative movement, which can damage the winding coil.

[0051] Please refer to Figure 3The present embodiment provides a motor stator wire-inserting device 50, comprising a motor stator wire-inserting tool 30 and an operating table 51. The motor stator wire-inserting tool 30 is mounted on the operating table 51. The positioner 31 of the motor stator wire-inserting tool 30 is mounted on the upper portion of the operating table 51. The guide bar tool 40, the inner support pusher 34, and the second pusher 33 are sequentially mounted on the lower portion of the operating table 51 from top to bottom. The motor stator core 21 enters the middle portion of the operating table 51 for wire-inserting of the winding coil.

[0052] The operating console 51 may include a control switch, which is electrically connected to the motor stator wire inserting tool 30 to control the operation of the motor stator wire inserting tool 30 .

[0053] Please refer to Figure 4 and Figure 5 The embodiment of the present application provides a motor stator wire embedding tool 30 for maintaining stability when the iron core 21 is embedded in the winding coil. The motor stator wire embedding tool 30 includes a guide bar tool 40 and a second pusher 33. The guide bar tool 40 includes a wide guide bar 41 and a narrow guide bar 42. The wide guide bar 41 and the narrow guide bar 42 surround the axial center line of the iron core 21 ( Figure 4 There are gaps between adjacent wide bars 41 and narrow bars 42, which are used to correspond to the winding coil slots 22. The bar fixture 40 is used to embed the winding coil into the iron core 21 when the iron core 21 is embedded in the winding coil.

[0054] In a direction perpendicular to the axial centerline of the core 21, the width of the narrow conductive bar 42 is equal to the distance between two adjacent winding coil slots 22. The width of the gap is equal to the width of the winding coil slots 22. The width of the narrow conductive bar 42 and the width of the gap can be adjusted according to the actual size of the winding coil slots 22 on the core 21.

[0055] The width of the wide conductor bar 41 corresponds to the span of the winding coil, which refers to the number of winding coil slots 22 that the two sides of the winding coil embedded in the winding coil slots 22 span on the iron core 21. By adjusting the width of the wide conductor bar 41, the arrangement of the winding coil in the winding coil slots 22 can be adjusted.

[0056] For example, the greater the width of the wide conductor bar 41, the greater the span of the winding coil, the sparser the arrangement of the winding coil in the winding coil slot 22, and the greater the width of the motor 10 ( Figure 1 The output power of the motor 10 may be reduced if the width of the wide conductor bar 41 is smaller, the span of the winding coil is smaller, and the winding coils are arranged more densely within the winding coil slots 22. This may increase the output power of the motor 10, but will affect the heat dissipation performance of the motor 10. The width of the wide conductor bar 41 can be adjusted according to the actual situation of the iron core 21 to change the output power of the motor 10.

[0057] When inserting the winding coil into the iron core 21, the winding coil is first arranged, with one end placed in one gap and the other end in another gap adjacent to the gap. This means that the winding coil surrounds the wide conductive bar 41 within the winding coil. As the conductive bar fixture 40 moves toward the iron core 21, the winding coil follows the conductive bar fixture 40 within the gap. When the conductive bar fixture 40 moves near the winding coil slot 22, the winding coil located inside the gap is inserted into the winding coil slot 22 and located at the top of the winding coil slot 22. The winding coil located outside the gap is located at the bottom of the winding coil slot 22, thus inserting the winding coil into the winding coil slot 22.

[0058] The motor stator wire-inserting fixture 30 also includes a second pusher 33. This second pusher 33 is cylindrical in shape, with an outer diameter smaller than the inner diameter of the guide bar fixture 40, allowing it to move smoothly within the guide bar fixture 40. As the second pusher 33 moves along the axial centerline of the motor stator core 21, it pushes the winding coil radially toward the stator core 21. Furthermore, the second pusher 33, located within and in contact with the guide bar fixture 40, supports the guide bar fixture 40 and improves its stability.

[0059] Please refer to Figure 4 and Figure 6 The motor stator wire embedding tool 30 also includes an inner support pusher 34. The middle of the inner support pusher 34 is cylindrical, and a plurality of struts 341 are arranged around the outer edge of the inner support pusher 34. When the motor stator core 21 is embedded in the winding coil, the inner support pusher 34 is arranged on the side of the second pusher 33 close to the motor stator core 21 and is aligned with the second pusher 33 along the axial centerline of the motor stator core 21. The inner support pusher 34 enters the inner side of the guide bar tool 40, and the plurality of struts 341 contact the narrow guide bars 42 in a one-to-one correspondence. The inner support pusher 34 is used to support the guide bar tool 40. The inner support pusher 34 is arranged on the side of the second pusher 33 close to the core 21 and is used to support the narrow guide bars 42. When the second pusher 33 moves toward the core 21, the inner support pusher 34 is driven by the second pusher 33 and moves toward the core 21.

[0060] At a point perpendicular to the axial centerline of the core 21 ( Figure 4 In the direction (dashed line in the figure), the width of support 341 is equal to the width of narrow conductive bar 42. Since the width of narrow conductive bar 42 is smaller than that of wide conductive bar 41, narrow conductive bar 42 is weaker. Supporting narrow conductive bar 42 with support 341 increases the stability of narrow conductive bar 42, prevents relative movement between narrow conductive bar 42 and wide conductive bar 41, and thus prevents damage to the winding coil.

[0061] The motor stator wire embedding tooling 30 includes a guide bar tooling 40, a second pusher 33, and an inner support pusher 34. There is a gap between adjacent wide guide bars 41 and narrow guide bars 42, and the winding coil is set in the gap. The second pusher 33 can push the winding coil so that the winding coil is embedded in the winding coil slot 22. The inner support pusher 34 is set on the side of the second pusher 33 close to the iron core 21. A plurality of pillars 341 are arranged around the inner support pusher 34. The plurality of pillars 341 are in one-to-one contact with the narrow guide bars 42, which can support the narrow guide bars 42, improve the stability of the narrow guide bars 42, and avoid relative movement between the adjacent wide guide bars 41 and the narrow guide bars 42, thereby avoiding the winding coil from scratching the coil slot and avoiding damage to the winding coil.

[0062] Continue to refer to Figure 6 In the above embodiment, the surface of any one of the multiple pillars 341 that contacts the narrow conductive bar 42 is a concave arc surface, and the pillar 341 is slidably connected to the narrow conductive bar 42. The curvature of the concave arc surface is equal to the curvature of the narrow conductive bar 42 on the side closest to the pillar 341. The narrow conductive bar 42 sliding within the arc surface fits perfectly with the arc surface, which can increase the contact area between the pillar 341 and the narrow conductive bar 42, prevent the narrow conductive bar 42 from shaking in the radial and axial directions along the core 21, and improve the stability of the narrow conductive bar 42.

[0063] At the same time, the support 341 slides along the narrow conductive bar 42 in the axial direction of the motor stator core 21, which can reduce the friction between the narrow conductive bar 42 and the support 341, avoid wear of the narrow conductive bar 42, and affect the winding coil.

[0064] Continue to refer to Figure 6 In the above embodiment, the central portion of the internal support pusher 34 is a solid cylindrical structure 342. The shape of the central portion of the internal support pusher 34 is consistent with the shape of the central through-hole of the iron core 21. This facilitates the positioning of the internal support pusher 34 and ensures that the motor stator wire inserting tool 30 moves along the axial centerline of the iron core 21. Multiple struts 341 are arranged around the outer edge of the solid cylindrical structure 342 to reduce the mass of the internal support pusher 34, thereby reducing the cost of the internal support pusher 34 while ensuring its strength.

[0065] The cylindrical solid structure 342 and the plurality of struts 341 have equal thickness along the central axis of the core 21, facilitating the integral molding of the internal support pusher head 34. Furthermore, the equal thickness of the cylindrical solid structure 342 and the plurality of struts 341 ensures equal strength of each portion of the internal support pusher head 34, thereby ensuring stability of the internal support pusher head 34.

[0066] In the above embodiment, the connection between any one of the plurality of pillars 341 and the cylindrical solid structure 342 is formed on both sides with rounded concave structures. Two adjacent pillars 341 enclose a receiving space, and the winding coil located inside the gap can be placed in the receiving space and pushed by the second pusher head 33.

[0067] When the motor stator wire-inserting tool 30 is in operation, the winding coil is placed in the gap. The second pusher 33 pushes the inner support pusher 34 and the winding coil toward the iron core 21. The winding coil located inside the gap is confined within the accommodating space, which can ensure the position of the winding coil and prevent the winding coil from deforming during movement, making it difficult to insert into the winding coil slot 22. The connection between any of the multiple pillars 341 and the cylindrical solid structure 342 has rounded concave surfaces on both sides to prevent scratching the winding coil.

[0068] Furthermore, the winding coils are located within the accommodation space, which reduces the height difference between the winding coils located inside the guide bar fixture 40 and the winding coils located outside the guide bar fixture 40. When the motor stator wire inserting fixture 30 is in operation, the second pusher 33 pushes the winding coils located inside the guide bar fixture 40, causing them to move toward the iron core 21. The winding coils located outside the guide bar fixture 40 are pulled by the winding coils located inside the guide bar fixture 40, moving toward the iron core 21.

[0069] When the height difference between the winding coil located inside the guide bar tooling 40 and the winding coil located outside the guide bar tooling 40 is small and approximately equal to the thickness of the second pusher head 33, the interaction force between the two is small, which can prevent the winding coil from being pulled and damaged.

[0070] In the above embodiment, the support 341 is along the core 21 ( Figure 4 The radial length L of the support 341 (as shown) is greater than or equal to half a turn of the winding coil. It is understood that half a turn refers to half the length of a single turn of the winding coil. If the length L of the support 341 is too short, the inner support pusher 34 may contact the winding coil, potentially causing damage to the winding coil. If the length L of the support 341 is too long, the strength of the support 341 may be reduced, affecting the stability of the narrow conductive bar 42.

[0071] The length of the support 341 along the radial direction of the core 21 is greater than or equal to half a turn length of the winding coil, which can prevent the winding coil from being pulled and damaged while ensuring the stability of the narrow conductive bar 42.

[0072] In the above embodiment, the thickness of the cylindrical solid structure 342 is less than one-third of the axial length of the core 21. The thickness of the cylindrical solid structure 342 is equal to the thickness of the plurality of struts 341. In other words, the thickness of the struts 341 is less than one-third of the axial length of the core 21. The thicker the cylindrical solid structure 342, the greater its strength and the better its support for the narrow conductive bars 42.

[0073] But at the same time, the thickness of the cylindrical solid structure 342 is too large, which will cause the strength of the cylindrical solid structure 342 to be too large, and the effect of the thrust exerted by the second push head 33 on the inner support push head 34 will be weakened. The inner support push head 34 is not easily pushed by the second push head 33, thereby affecting the winding coil from being embedded in the winding coil slot 22.

[0074] The thickness of the cylindrical solid structure 342 is less than one-third of the axial length of the iron core 21 , which can ensure the strength of the inner support pusher 34 while ensuring the moving speed of the inner support pusher 34 .

[0075] In the above embodiment, the plurality of pillars 341 are integrally formed with the cylindrical solid structure 342. This integral formation of the plurality of pillars 341 and the cylindrical solid structure 342 ensures thickness consistency between the plurality of pillars 341 and the cylindrical solid structure 342, thereby improving the processing efficiency of the internal support pusher 34 and reducing the processing difficulty.

[0076] Continue to refer to Figure 7 In some embodiments, the second pusher head 33 is surrounded by a plurality of connecting columns 331, the core 21 ( Figure 4 As shown in the figure, when the winding coil is embedded, multiple connecting columns 331 contact the narrow conductive bar 42 one by one, and the surface of any one of the multiple connecting columns 331 in contact with the narrow conductive bar 42 is a concave arc surface, and the connecting column 331 is slidably connected to the narrow conductive bar 42.

[0077] The curvature of the concave arc surface is equal to the curvature of the narrow conductive bar 42 on the side close to the pillar 341. The narrow conductive bar 42 slid in the arc surface fits perfectly with the arc surface, which can increase the contact area between the connecting column 331 and the narrow conductive bar 42, avoid the narrow conductive bar 42 from shaking in the radial and axial directions along the iron core 21, and improve the stability of the narrow conductive bar 42.

[0078] At the same time, the connecting column 331 is slidably connected to the narrow conductive bar 42, which can reduce the friction between the narrow conductive bar 42 and the connecting column 331, thereby preventing the narrow conductive bar 42 from being worn and affecting the winding coil.

[0079] In the above embodiment, the second pusher head 33 includes a second pusher head middle portion 332, which is a cylindrical solid structure. A plurality of connecting columns 331 are arranged around the outer edge of the second pusher head middle portion 332. The second pusher head middle portion 332 and the plurality of connecting columns 331 are connected along the central axis direction of the iron core 21 ( Figure 7 The thickness of the film (in the direction perpendicular to the paper) is equal.

[0080] The thickness of the second pusher head middle portion 332 and the plurality of connecting posts 331 along the central axis of the iron core 21 is equal, facilitating the integral molding of the second pusher head 33. Furthermore, the equal thickness of the second pusher head middle portion 332 and the plurality of connecting posts 331 ensures equal strength across the second pusher head 33, thereby ensuring stability.

[0081] In the above embodiment, the second pusher head middle portion 332 and the plurality of connecting posts 331 are integrally formed. The plurality of connecting posts 331 are integrally formed with the second pusher head middle portion 332 to ensure thickness consistency between the plurality of connecting posts 331 and the second pusher head middle portion 332, thereby improving the processing efficiency of the second pusher head 33 and reducing the processing difficulty.

[0082] Continue to refer to Figure 6 and Figure 7 In the above embodiment, the inner support pusher head 34 and the second pusher head 33 are connected by a bolt structure. The inner support pusher head 34 is provided with a plurality of first threaded holes, and the second pusher head 33 is provided with a plurality of second threaded holes. The positions of the first threaded holes and the second threaded holes correspond to each other, so that the bolt structure passes through the first threaded holes and the second threaded holes and cooperates with them, thereby tightly connecting the inner support pusher head 34 and the second pusher head 33.

[0083] The embodiment of the present application does not limit the position and number of the first threaded hole and the second threaded hole. For example, the first threaded hole can be one or more, and the second threaded hole can be one or more. The first threaded hole can be arranged around the cylindrical solid structure 342, and the second threaded hole can be arranged around the middle part 332 of the second pusher head. The first threaded hole can also be arranged on the cross section of the inner support pusher head 34 (perpendicular to the iron core 21 ( Figure 4 The second threaded hole can also be set on the diameter of the cross section of the second push head 33.

[0084] It is understandable that the greater the number of first threaded holes and second threaded holes, the tighter the connection between the inner support pusher head 34 and the second pusher head 33, but at the same time the processing difficulty and processing cost are higher. The number and position of the first threaded holes and the second threaded holes can be adjusted according to actual needs.

[0085] The inner support pusher 34 is connected to the second pusher 33, which can limit the position of the inner support pusher 34 and prevent the inner support pusher 34 from circumferential movement, thereby preventing the support 341 from moving in the radial direction of the iron core 21, and preventing the narrow conductive bar 42 from being affected and moved by the support 341, causing damage to the winding coil.

[0086] Continue to refer to Figure 6 、 Figure 7 and Figure 8In the above embodiment, the internal support pusher head 34 includes a positioning pin 36, which is used to position the internal support pusher head 34 and the second pusher head 33 during assembly. The internal support pusher head 34 is provided with a through hole 343, and the second pusher head 33 is provided with a threaded hole 333. The positioning pin 36 includes a head 361 and a tail 362. The head 361 is cylindrical, with a circular cross-section whose diameter is equal to the diameter of the through hole. The tail 362 includes external threads that mate with the threaded hole 333. The tail 362 has a circular cross-section whose diameter is equal to the diameter of the threaded hole.

[0087] The positioning pin 36 passes through the inner support push head 34 and is tightened with the second push head 33 to ensure that the axial center line of the inner support push head 34 coincides with the axial center line of the second push head 33, thereby achieving the positioning of the inner support push head 34 and the second push head 33.

[0088] It is understood that the positioning pin 36 can pass through the through hole 343 and approach the second pusher head 33 until the positioning pin 36 cannot move. At this time, the inner support pusher head 34 and the second pusher head 33 are in contact, the tail portion 362 enters the threaded hole 333, and the axial centerline of the through hole 343 coincides with the axial centerline of the threaded hole 333, thereby achieving the positioning of the inner support pusher head 34 and the second pusher head 33. After tightening the positioning pin 36, the inner support pusher head 34 and the second pusher head 33 are assembled together.

[0089] In the above embodiment, the second pusher head 33 is made of copper. The copper material of the second pusher head 33 can make the second pusher head 33 more wear-resistant, so that when the second pusher head 33 contacts the inner support pusher head 34, the wear of the second pusher head 33 is small, and the second pusher head 33 can be ensured to be almost not damaged.

[0090] In some embodiments, the inner support pusher 34 is also made of copper. The inner support pusher 34 is made of copper, and the coil winding is also primarily made of copper. The same materials have similar hardness, ensuring that the second pusher 33 does not damage the winding coil when pushing the winding coil into the winding slot of the motor stator core 21.

[0091] Continue to refer to Figure 4 In the above embodiment, the motor stator wire inserting tool 30 includes a hydraulic lifting device 35, which is connected to the second pusher head 33. The hydraulic lifting device 35 is used to lift the second pusher head 33 to enable the second pusher head 33 to move within the guide bar tool 40. The hydraulic lifting device 35 may include a hydraulic rod 352, a connecting rod, and a telescopic rod 351. Both ends of the connecting rod are connected to the telescopic rod 351. One end of the telescopic rod 351 is connected to the second pusher head 33, and the other end is mounted on the operating table 51.

[0092] The operating console 51 is electrically connected to the hydraulic rod 352. The console 51 can send control signals to the hydraulic rod 352, causing the hydraulic pressure within the hydraulic rod 352 to change, thereby controlling the lifting distance of the second pusher head 33. For example, when the hydraulic pressure increases, the hydraulic rod 352 extends, driving the connecting rod to move, thereby moving the telescopic rod 351 and driving the second pusher head 33 toward the iron core 21. Thus, by controlling the hydraulic pressure, the travel distance of the second pusher head 33 can be controlled.

[0093] In some embodiments, the motor stator wire-inserting tool 30 further includes a drive device connected to the guide bar tool 40. The drive device can propel the guide bar tool 40 along the axial centerline of the core 21. It will be appreciated that the guide bar tool 40 is relatively long along the axial centerline of the core 21, and the winding coil must be moved to the side of the guide bar tool 40 closer to the core 21 before it can be inserted into the winding coil slot 22.

[0094] The moving speed of the guide bar tooling 40 is smaller than that of the second pusher head 33 , so that the second pusher head 33 moves relatively inside the guide bar tooling 40 , pushing the winding coil to move toward the side of the guide bar tooling 40 close to the iron core 21 , so that the winding coil is finally located inside the iron core 21 .

[0095] The embodiments of the present application do not limit the driving device. For example, the driving device can be a hydraulic lifting device or an electric lifting device. In the embodiment in which the driving device is an electric lifting device, the driving device can include a screw, a guide sleeve, and a motor 10. The guide sleeve is connected to the guide bar fixture 40, and the extension direction of the screw is parallel to the axial centerline direction of the iron core 21. The motor 10 can rotate the screw. When the screw rotates, the guide sleeve moves on the screw along the extension direction of the screw, thereby causing the guide bar fixture 40 to move along the axial centerline direction of the iron core 21.

[0096] When the winding coil is inserted into the winding coil slot 22, the hydraulic lifting device 35 and the driving device can be controlled separately through the operating console 51, with the hydraulic lifting device 35 being controlled to move slightly faster than the driving device. The hydraulic lifting device 35 drives the second pusher 33 to move, and the driving device drives the guide bar fixture 40 to move, thereby moving the winding coil toward the axial centerline of the core 21, so that the winding coil is inserted into the winding coil slot 22.

[0097] Continue to refer to Figure 4 In the above embodiment, the motor stator wire embedding tool 30 further includes a positioner 31, which is used to position the core 21 by cooperating with the narrow conductive bar 42 at one end of the core 21 when the core 21 is embedded in the winding coil.

[0098] When the motor stator wire-inserting fixture 30 is not in operation, the positioner 31 is located above the core 21 and does not contact the guide bar fixture 40. When the motor stator wire-inserting fixture 30 is in operation, the positioner 31 can be controlled to move toward the core 21 until it passes through the core 21 and is assembled with the guide bar fixture 40. As the guide bar fixture 40 moves toward the core 21 along the axial centerline of the core 21, the positioner 31 is pushed by the guide bar fixture 40. When part of the positioner 31 extends beyond the end surface of the top of the core 21, the guide bar fixture 40 is located inside the core 21, and the winding coil is located in the winding coil slot 22.

[0099] After the winding coil is embedded in the winding coil slot 22, the positioner 31 can be retracted above the iron core 21, and the guide bar tooling 40, the inner support pusher 34 and the second pusher 33 are returned to the bottom of the iron core 21 to wait for the next wire embedding.

[0100] The positioner 31 is used to position the core 21 by cooperating with the narrow conductive bar 42 at one end of the core 21 when the core 21 is embedded in the winding coil, thereby ensuring that the winding coil is smoothly embedded in the winding coil slot 22 .

[0101] Please refer to Figure 4 and Figure 9 , Figure 9 31 is a bottom view of the positioner 31. In the above embodiment, the positioner 31 is provided with a plurality of first grooves 311 and a plurality of second grooves 312 on one side close to the wide conductive bar 41 and the narrow conductive bar 42. The plurality of first grooves 311 and the plurality of second grooves 312 surround the axial center line of the core 21 ( Figure 9 The first grooves 311 are arranged alternately (in a direction perpendicular to the paper). The first grooves 311 cooperate with the wide guide bars 41, and the second grooves 312 cooperate with the narrow guide bars 42. It is understood that, along a plane parallel to the end face of the positioner 31, the shape of the first grooves 311 is the same as the shape of the wide guide bars 41, and the shape of the second grooves 312 is the same as the shape of the narrow guide bars 42. The number of first grooves 311 is the same as the number of wide guide bars 41, and the number of second grooves 312 is the same as the number of narrow guide bars 42.

[0102] When the positioner 31 is assembled with the guide bar fixture 40, the wide guide bar 41 is correspondingly inserted into the first groove 311, and the narrow guide bar 42 is correspondingly inserted into the second groove 312. Thus, the positioner 31 can limit the position of the wide guide bar 41 and the narrow guide bar 42, ensuring that the shape of the space enclosed by the wide guide bar 41 and the narrow guide bar 42 remains unchanged, ensuring that the second pusher head 33 and the inner support pusher head 34 can move smoothly within the guide bar fixture 40, and improving the stability of the wide guide bar 41 and the narrow guide bar 42.

[0103] Please refer to Figure 10 , Figure 10The figure shows a top view of the positioner 31. In the above embodiment, a plurality of protrusions 313 are provided on the side surface of the positioner 31 (the surface closest to the core 21). Along the radial direction of the core 21, the width of the protrusions 313 is smaller than the width of the winding coil slots 22. Because the width of the protrusions 313 is smaller than the width of the winding coil slots 22, the positioner 31 can pass through the core 21 without rubbing against the winding coil slots 22.

[0104] The protrusion 313 can determine the position of the winding coil slot 22, which is convenient for determining the position of the narrow guide bar 42 and ensuring the motor stator wire embedding tool 30 ( Figure 4 During the wire embedding process, the second pusher 33 drives the winding coil toward the core 21. The protrusion 313 blocks the winding coil, ensuring that the winding coil is smoothly embedded in the winding coil slot 22, thereby preventing the winding coil from moving too far and causing it to pass through the core 21.

[0105] In the above embodiment, the material of the positioner 31 is aluminum alloy. Aluminum alloy has a relatively low strength. When the positioner 31 passes through the iron core 21, it can avoid friction between the protrusion 313 and the winding coil slot 22, reducing wear between the positioner 31 and the iron core 21, thereby ensuring the life of the motor stator wire inserting tool 30. At the same time, aluminum alloy is lightweight and more convenient to operate.

[0106] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A motor stator wire embedding tool, characterized in that: The motor stator wire embedding tool is used to maintain stability when the motor stator core is embedded in the winding coil, and the motor stator wire embedding tool includes: A guide bar fixture, wherein the guide bar fixture is in the shape of a hollow cylinder and includes wide guide bars and narrow guide bars. The wide guide bars and the narrow guide bars are alternately arranged around the axial center line of the motor stator core. There is a gap between adjacent wide guide bars and narrow guide bars. The gap is used to correspond to the winding coil slots on the motor stator core. The guide bar fixture is used to embed the winding coil into the motor stator core when the motor stator core is embedded in the winding coil. a second pusher head, the second pusher head being cylindrical, the outer diameter of the second pusher head being smaller than the inner diameter of the guide bar fixture, and the second pusher head being used to push the winding coil along the radial direction of the motor stator core toward the motor stator core when moving along the axial centerline of the motor stator core; An inner support pusher head, the middle of the inner support pusher head is cylindrical, and a plurality of pillars are arranged around the outer edge of the inner support pusher head. When the motor stator core is embedded in the winding coil, the inner support pusher head is arranged on the side of the second pusher head close to the motor stator core and is opposite to the second pusher head along the axial center line of the motor stator core. The inner support pusher head enters the inner side of the guide bar tooling, and the plurality of pillars are in one-to-one contact with the narrow guide bars. The inner support pusher head is used to support the guide bar tooling.

2. The motor stator wire embedding tool according to claim 1, characterized in that: The surface of any one of the plurality of pillars that contacts the narrow conductive bar is a concave arc surface, and the pillar slides along the narrow conductive bar in the axial direction of the motor stator core.

3. The motor stator wire embedding tool according to claim 1, characterized in that: The middle part of the inner support push head is a cylindrical solid structure, and the multiple pillars are evenly distributed around the outer edge of the cylindrical solid structure. The thickness of the cylindrical solid structure and the multiple pillars along the central axis of the motor stator core is equal.

4. The motor stator wire embedding tool according to claim 3, characterized in that: Both sides of the connection between any one of the plurality of pillars and the cylindrical solid structure are rounded concave structures.

5. The motor stator wire embedding tool according to claim 3 or 4, characterized in that: The thickness of the cylindrical solid structure is less than one third of the axial length of the motor stator core.

6. The motor stator wire inserting tool according to any one of claims 3 to 5, characterized in that: The plurality of pillars are integrally formed with the cylindrical solid structure.

7. The motor stator wire inserting tool according to any one of claims 1 to 6, characterized in that: The inner supporting push head and the second push head are connected via a bolt structure.

8. The motor stator wire inserting tool according to any one of claims 1 to 7, characterized in that: The inner supporting push head includes a positioning pin, and the positioning pin is used for positioning the inner supporting push head and the second push head when they are assembled.

9. The motor stator wire inserting tool according to any one of claims 1 to 8, characterized in that: The second pusher head is made of copper.

10. The motor stator wire inserting tool according to any one of claims 1 to 9, characterized in that: The motor stator wire embedding tooling includes a hydraulic lifting device, which is connected to the second pusher head. When the motor stator core is embedded in the winding coil, the hydraulic lifting device is used to lift the second pusher head to enable the second pusher head to move inside the guide bar tooling.

11. The motor stator wire inserting tool according to any one of claims 1 to 10, characterized in that: The motor stator wire embedding tool includes a positioner. When the motor stator core is embedded in the winding coil, the positioner is used to cooperate with the narrow conductive bar at one end of the motor stator core to complete the positioning of the motor stator core.

12. The motor stator wire embedding tool according to claim 11, characterized in that: The material of the positioner is aluminum alloy.

13. A motor stator wire embedding device, characterized in that: The motor stator wire inserting equipment comprises the motor stator wire inserting tool and an operating table according to any one of claims 1 to 12, wherein the motor stator wire inserting tool is installed on the operating table, wherein: The positioner is installed on the upper part of the operating table; The guide bar fixture, the inner support push head, and the second push head are sequentially installed on the lower part of the operating table from top to bottom; The motor stator core enters from the middle of the operating table to carry out the wire embedding installation of the winding coil.

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