Stator coil wire press-in equipment and wire pressing method
By designing a stator coil wire pressing device including a length correction seat, a wire crimping device and a drive device, the problem of insufficient line length accuracy and consistency of existing equipment is solved, and higher line length accuracy and consistency are achieved.
Patent Information
- Application Number
- CN202411881101.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-04-04
AI Technical Summary
The existing wire pressing equipment does not have high accuracy in controlling the stator coil wire length, and the consistency of the wire length of the same layer is poor, which affects the yield of subsequent processes.
A stator coil wire pressing device is designed, including a length correction seat, a wire crimping device and a drive device. The crimping device is provided with an inner laminate head, a middle laminate head and an outer laminate head in sequence from the inside to the outside. The length correction seat provides support. The inner laminate head, a middle laminate head and an outer laminate head are respectively used to extrude the inner coil, a middle laminate coil and an outer coil of the stator coil.
By independently controlling the wire length of each layer of coil, the accuracy and consistency of the wire length are improved, ensuring high accuracy and consistency during the wire pressure process.
Smart Images
Figure CN119765819A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of stator coil wire pressing, and in particular to a stator coil wire pressing device and a wire pressing method. Background Art
[0002] The special shape of the Xp in stator coil and the elimination of the head cutting process have greatly increased the precision requirements for the length of the twisted head end wire; the wire length accuracy is required to be high, and the consistency of the length of the wires on the same layer is required to be very high. The current wire pressing equipment does not have high enough control accuracy for the wire length, and the consistency of the length of the wires on the same layer is not ideal (the extreme difference is 0.8-1.4 mm). Poor consistency of wire length seriously affects the yield of subsequent processes.
[0003] The current wire pressing equipment has high requirements on the wire length of the wire forming equipment, but the current wire forming equipment cannot meet its requirements. Summary of the invention
[0004] The present application provides a stator coil wire pressing device to solve the problem that the current wire pressing device has insufficient control accuracy for wire length and poor consistency of wire length on the same layer.
[0005] In the first aspect, the present application provides a stator coil wire pressing device, comprising a length correction seat, a wire pressing device and a driving device; the driving device is connected to the wire pressing device, and the wire pressing device comprises an inner layer pressing head, a middle layer pressing head and an outer layer pressing head arranged in sequence from the inside to the outside; the length correction seat is arranged below the wire pressing device; wherein, the stator coil is sleeved on the length correction seat and supported by the length correction seat; the inner layer pressing head, the middle layer pressing head and the outer layer pressing head are respectively used to extrude the inner layer coil, the middle layer coil and the outer layer coil of the stator coil.
[0006] A further technical solution is that the length correction seat includes a centering sleeve and at least two supporting steps protruding from the outer surface of the centering sleeve, wherein the stator coil is sleeved on the centering sleeve, and at least two of the supporting steps support the multi-layer coils of the stator coil in a one-to-one correspondence.
[0007] A further technical solution is that the driving device includes a first driving unit, a second driving unit and a third driving unit, and the first driving unit, the second driving unit and the third driving unit are respectively connected to the inner layer pressure head, the middle layer pressure head and the outer layer pressure head.
[0008] A further technical solution is that the first driving unit and the third driving unit are cylinders, and the second driving unit is a press.
[0009] A further technical solution is that the outer layer pressure head includes a first base, a wire cover and a first pressure block arranged on the lower side of the first base, the first pressure block is arranged on the inner side of the wire cover, and the height of the first pressure block is lower than the height of the wire cover.
[0010] A further technical solution is that the middle-layer pressure head includes a second base and a second pressure block arranged at the lower side of the second base.
[0011] A further technical solution is that the inner layer pressure head includes a third base and a third pressure block arranged at the lower side of the third base.
[0012] A further technical solution is that the lower end of the first pressing block is V-shaped; and the lower end of the third pressing block is V-shaped.
[0013] A further technical solution is that the number of the first pressure block, the second pressure block and the third pressure block is at least two, a plurality of the first pressure blocks are arranged at intervals on the lower side of the first base, a plurality of the second pressure blocks are arranged at intervals on the lower side of the second base, and a plurality of the third pressure blocks are arranged at intervals on the lower side of the third base.
[0014] In a second aspect, the present application provides a stator coil wire pressing method, which is applied to the stator coil wire pressing device as described in the first aspect, and the method comprises:
[0015] Control the outer layer pressure head to press down the outer layer coil of the stator coil;
[0016] Control the inner layer pressure head to press down the inner layer coil of the stator coil;
[0017] The middle layer pressure head is controlled to press down the middle layer coil of the stator coil.
[0018] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:
[0019] The embodiment of the present application proposes a stator coil wire pressing device including a length correction seat, a wire pressing device and a driving device; the driving device is connected to the wire pressing device, and the wire pressing device includes an inner layer pressing head, a middle layer pressing head and an outer layer pressing head arranged in sequence from the inside to the outside; the length correction seat is arranged below the wire pressing device; wherein the stator coil is sleeved on the length correction seat and supported by the length correction seat; the inner layer pressing head, the middle layer pressing head and the outer layer pressing head are used to press the inner layer coil, the middle layer coil and the outer layer coil of the stator coil respectively. The inner layer coil, the middle layer coil and the outer layer coil of the stator coil are respectively pressed by the inner layer pressing head, the middle layer pressing head and the outer layer pressing head, and the wire length of each layer of coil is independently controlled, with higher precision controllability. At the same time, the length correction seat provides reliable support for each layer of coil of the stator coil, thereby ensuring the precision and consistency of the wire length of each layer of coil during pressing. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.
[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0022] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.
[0023] Figure 1 A schematic structural diagram of a stator coil wire pressing device provided in an embodiment of the present application;
[0024] Figure 2 for Figure 1 Schematic diagram of the AA section in;
[0025] Figure 3 A schematic diagram of a partial structure of a stator coil wire pressing device provided in an embodiment of the present application;
[0026] Figure 4 for Figure 3 Schematic diagram of the AA section in;
[0027] Figure 5 A schematic structural diagram of an outer layer pressing head of a stator coil wire pressing device provided in an embodiment of the present application;
[0028] Figure 6 for Figure 5 Schematic diagram of the BB section in;
[0029] Figure 7 A schematic structural diagram of an inner layer pressing head of a stator coil wire pressing device provided in an embodiment of the present application;
[0030] Figure 8 Another structural schematic diagram of an inner layer pressing head of a stator coil wire pressing device provided in an embodiment of the present application;
[0031] Fig. 9 A schematic structural diagram of a length correction seat of a stator coil wire pressing device provided in an embodiment of the present application;
[0032] Fig.10 A cross-sectional view of a length correction seat of a stator coil wire pressing device provided in an embodiment of the present application.
[0033] Description of reference numerals:
[0034] Length correction seat 10, wire pressing device 20, mounting plate 40, guide rod 50, inner layer pressing head 21, middle layer pressing head 22, outer layer pressing head 23, centering sleeve 11, supporting step 12, mounting flange 13, first drive unit 31, second drive unit 32, third drive unit 33, first base 231, wire protection cover 232, first pressing block 233, IPI N pressing block 234, second base 221, second pressing block 222, third base 231, third pressing block 232. DETAILED DESCRIPTION
[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.
[0036] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.
[0037] For ease of description, spatial relative terms may be used herein to describe the relative positional relationship or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a posture change or a motion state change, then these directional indications also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used herein are interpreted accordingly.
[0038] In order to solve the technical problem that the wire pressing equipment in the prior art has insufficient control accuracy for the wire length and poor consistency of the wire length on the same layer, the present application provides a stator coil wire pressing equipment, which can improve the control accuracy for the stator coil wire length and ensure high consistency of the wire length on the same layer.
[0039] The following embodiments take the Xpin stator coil as an example to introduce the stator coil wire pressing device and wire pressing method of the present application. In other embodiments, the stator coil wire pressing device and wire pressing method of the present application are also applicable to other types of stator coils.
[0040] See also Figure 1-Figure 10 The embodiment of the present application provides a stator coil wire pressing device, including a length correction seat 10, a wire pressing device 20 and a driving device, and the specific structure is described as follows:
[0041] The driving device is connected to the wire pressing device 20 , and is used to drive the wire pressing device 20 to move.
[0042] The wire pressing device 20 includes an inner layer pressing head 21, a middle layer pressing head 22 and an outer layer pressing head 23 which are sequentially arranged from the inside to the outside. The inner layer pressing head 21, the middle layer pressing head 22 and the outer layer pressing head 23 are respectively used to press the inner layer coil, the middle layer coil and the outer layer coil of the Xpin stator coil. It can be understood that in order to ensure accurate extrusion, the size of the inner layer pressing head 21 matches the size of the inner layer coil, the size of the middle layer pressing head 22 matches the size of the middle layer coil, and the size of the outer layer pressing head 23 matches the size of the outer layer coil.
[0043] The length correction seat 10 is arranged below the wire pressing device 20; the Xpin stator coil is sleeved on the length correction seat 10 and supported by the length correction seat 10. Specifically, the centering sleeve 11 of the Xpin stator coil is sleeved on the length correction seat 10, and the length correction seat 10 provides reliable support for each layer of the Xpin stator coil, thereby ensuring the consistency of the wire length of each layer of the coil during extrusion.
[0044] The stator coil wire pressing device proposed in the embodiment of the present application includes a length correction seat 10, a wire pressing device 20 and a driving device; the driving device is connected to the wire pressing device 20, and the wire pressing device 20 includes an inner layer pressing head 21, a middle layer pressing head 22 and an outer layer pressing head 23 arranged in sequence from the inside to the outside; the length correction seat 10 is arranged below the wire pressing device 20; wherein, the Xpin stator coil is sleeved on the length correction seat 10 and supported by the length correction seat 10; the inner layer pressing head 21, the middle layer pressing head 22 and the outer layer pressing head 23 are respectively used to extrude the inner layer coil, the middle layer coil and the outer layer coil of the Xpin stator coil. The inner layer coil, middle layer coil and outer layer coil of the Xpin stator coil are respectively extruded by the inner layer pressing head 21, the middle layer pressing head 22 and the outer layer pressing head 23. The wire length of each layer of coil is independently controlled, and the precision controllability is higher. At the same time, the length correction seat 10 provides reliable support for each layer of coil of the Xpin stator coil, thereby ensuring the precision and consistency of the wire length of each layer of coil during extrusion.
[0045] Furthermore, the length correction seat 10 includes a centering sleeve 11 and at least two supporting steps 12 protruding from the outer surface of the centering sleeve 11, wherein the Xpin stator coil is sleeved on the centering sleeve 11, and at least two supporting steps 12 correspond one by one to support the multi-layer coils of the Xpin stator coil.
[0046] The present embodiment does not limit the number of the supporting steps 12 , and is set according to the number of coil layers of the Xpin stator coil. For example, in the present embodiment, the number of coil layers of the Xpin stator coil is 6, corresponding to 6 supporting steps 12 .
[0047] In a specific implementation, the support step 12 is supported on the bottom side of the coil. The height of the support step 12 can be different, specifically determined according to the required height of the coil, and is not specifically limited in this application. A mounting flange 13 is provided on the bottom side of the length correction seat 10.
[0048] Further, the driving device includes a first driving unit 31, a second driving unit 32 and a third driving unit 33, and the first driving unit 31, the second driving unit 32 and the third driving unit 33 are respectively connected to the inner layer head 21, the middle layer head 22 and the outer layer head 23. The first driving unit 31, the second driving unit 32 and the third driving unit 33 are respectively used to drive the inner layer head 21, the middle layer head 22 and the outer layer head 23. Thus, the inner layer head 21, the middle layer head 22 and the outer layer head 23 are all independently driven, and the length of each layer of coils is also independently controlled.
[0049] Specifically, the first drive unit 31 and the third drive unit 33 are cylinders, and the second drive unit 32 is a press. Alternatively, the first drive unit 31, the second drive unit 32 and the third drive unit 33 may also use other drive devices, which are not specifically limited in this application. The first drive unit 31 and the third drive unit 33 are both mounted on the mounting plate 40. The first drive unit 31 is connected to the outer layer press head 23 through the guide rod 50, and the second drive unit 32 is connected to the inner layer press head 21 through the guide rod 50.
[0050] Further, the outer layer pressing head 23 includes a first base 231, a wire cover 232, a first pressing block 233 and an IPIN pressing block 234 arranged at the lower side of the first base 231, the first pressing block 233 is arranged at the inner side of the wire cover 232, the IPIN pressing block 234 is arranged at the outer side of the wire cover 232, and the height of the first pressing block 233 is lower than that of the wire cover 232. The IPIN pressing block 234 is used to press the IPIN of the Xpin stator coil.
[0051] In a specific implementation, the wire guard 232 is used to wrap around the outer side of the outermost coil to prevent the outer coil from deforming outward during extrusion, thereby ensuring accuracy. The lower end of the first pressing block 233 is V-shaped, so that the outer coil can be extruded into a V-shape. The number of first pressing blocks 233 is at least two, and at least two first pressing blocks 233 are spaced apart on the lower side of the first base 231, so as to achieve uniform extrusion of the outer coil.
[0052] Further, the middle layer pressing head 22 includes a second base 221 and a second pressing block 222 disposed at the lower side of the second base 221. The number of the second pressing blocks 222 is at least two, and at least two second pressing blocks 222 are disposed at intervals at the lower side of the second base 221, so as to achieve uniform compression of the middle layer coil. The shape of the lower end of the second pressing block 222 can be a plane. It can be understood that the number of the middle layer coils can be at least two layers, for example, in this embodiment, the number of the middle layer coils is 4 layers.
[0053] Further, the inner layer pressing head 21 includes a third base 231 and a third pressing block 232 arranged at the lower side of the third base 231. The shape of the lower end of the third pressing block 232 is V-shaped, so that the inner layer coil can be squeezed into a V shape. When squeezing the inner layer coil, the centering sleeve 11 can effectively prevent the inner layer coil from deforming inward. The number of the third pressing blocks 232 is at least two, and at least two third pressing blocks 232 are arranged at intervals at the lower side of the third base 231, so as to achieve uniform squeezing of the inner layer coil.
[0054] The embodiment of the present invention provides a stator coil wire pressing method, which is applied to the stator coil wire pressing device provided in the above embodiment, and the method includes the following steps:
[0055] S1, control the outer layer pressing head 23 to press down the outer layer coil of the Xpin stator coil.
[0056] In the specific implementation, firstly, the wire pressing device 20 is controlled to move downward, close to the crown end of the Xpin stator coil of the Xpin stator coil, to complete the preparation work. The outer layer pressing head 23 is controlled to press down the outer layer coil of the Xpin stator coil. During the pressing, the wire guard 232 can effectively prevent the outer layer coil from deforming outward, thereby ensuring the accuracy and consistency of the wire length. At the same time, the IPIN pressing block 234 presses the IPIN of the Xpin stator coil.
[0057] S2, controlling the inner layer pressing head 21 to press down the inner layer coil of the Xpin stator coil.
[0058] In a specific implementation, the inner layer pressing head 21 is controlled to press down the inner layer coil of the Xpin stator coil. During the pressing, the centering sleeve 11 can effectively prevent the inner layer coil from deforming inward, thereby ensuring the accuracy and consistency of the wire length.
[0059] S3, controlling the middle layer pressing head 22 to press down the middle layer coil of the Xpin stator coil.
[0060] In a specific implementation, the middle layer pressing head 22 is controlled to press down the middle layer coil of the Xpin stator coil. During extrusion, the inner layer coil and the outer layer coil can effectively prevent the middle layer coil from deforming to both sides, thereby ensuring the accuracy and consistency of the wire length.
[0061] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0062] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0063] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0064] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0065] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0066] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms should not be understood as necessarily being directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.
[0067] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.
[0068] The above are specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.
Claims
1. A stator coil wire pressing device, characterized in that: It comprises a length correction seat, a wire pressing device and a driving device; the driving device is connected to the wire pressing device, and the wire pressing device comprises an inner layer pressing head, a middle layer pressing head and an outer layer pressing head which are arranged in sequence from the inside to the outside; the length correction seat is arranged below the wire pressing device; wherein the stator coil is sleeved on the length correction seat and supported by the length correction seat; the inner layer pressing head, the middle layer pressing head and the outer layer pressing head are respectively used for pressing the inner layer coil, the middle layer coil and the outer layer coil of the stator coil.
2. The stator coil wire pressing device according to claim 1, characterized in that: The length correction seat includes a centering sleeve and at least two supporting steps protruding from the outer surface of the centering sleeve, wherein the stator coil is sleeved on the centering sleeve, and at least two supporting steps support the multi-layer coils of the stator coil in a one-to-one correspondence.
3. The stator coil wire pressing device according to claim 1, characterized in that: The driving device includes a first driving unit, a second driving unit and a third driving unit, and the first driving unit, the second driving unit and the third driving unit are respectively connected to the inner layer pressing head, the middle layer pressing head and the outer layer pressing head.
4. The stator coil wire pressing device according to claim 3, characterized in that: The first driving unit and the third driving unit are cylinders, and the second driving unit is a press.
5. The stator coil wire pressing device according to claim 1, characterized in that: The outer layer pressure head includes a first base and a wire cover, a first pressure block and an IPIN pressure block arranged on the lower side of the first base, the first pressure block is arranged on the inner side of the wire cover, the IPIN pressure block is arranged on the outer side of the wire cover, and the height of the first pressure block is lower than the height of the wire cover.
6. The stator coil wire pressing device according to claim 5, characterized in that: The middle-layer pressing head includes a second base and a second pressing block arranged at the lower side of the second base.
7. The stator coil wire pressing device according to claim 6, characterized in that: The inner layer pressing head comprises a third base and a third pressing block arranged at the lower side of the third base.
8. The stator coil wire pressing device according to claim 7, characterized in that: The lower end of the first pressing block is in a V shape; the lower end of the third pressing block is in a V shape.
9. The stator coil wire pressing device according to claim 7, characterized in that: The number of the first pressure block, the second pressure block and the third pressure block is at least two, a plurality of the first pressure blocks are arranged at intervals on the lower side of the first base, a plurality of the second pressure blocks are arranged at intervals on the lower side of the second base, and a plurality of the third pressure blocks are arranged at intervals on the lower side of the third base.
10. A stator coil crimping method, characterized in that: Applied to the stator coil wire pressing device according to any one of claims 1 to 9, the method comprising: Control the outer layer pressure head to press down the outer layer coil of the stator coil; Control the inner layer pressure head to press down the inner layer coil of the stator coil; The middle layer pressure head is controlled to press down the middle layer coil of the stator coil.