Flat wire motor stator winding and inserting tool and stator limiting method

Abstract

The invention provides a flat wire motor stator winding and inserting tool and a stator limiting method.The flat wire motor stator winding and inserting tool comprises a rotating body and a stator clamping mechanism coaxially arranged outside the rotating body in a sleeving mode, and the rotating body comprises a rotating shaft and a supporting assembly arranged on the outer wall of the rotating shaft in a sleeving mode and rotating along with the rotating shaft; the supporting assembly is provided with an outer cylindrical face extending in the axis direction of the rotating body. The stator clamping mechanism comprises two clamping discs which are parallel to each other and are oppositely arranged in the axis direction of the rotating body, the outer cylindrical surface of the supporting assembly is located between the two clamping discs, and the outer disc edge of each clamping disc is provided with a plurality of wire embedding grooves penetrating through the clamping disc in the thickness direction. The number of the wire embedding grooves of each clamping disc is equal to the number of stator grooves of a stator to be clamped, and the wire embedding grooves of the two clamping discs are in one-to-one correspondence and are aligned in the axis direction of the rotating body. The beneficial effects are that manual intervention is reduced, the stator can be stably supported and accurately fixed, the internal flat wire motor stator is prevented from shaking, the production efficiency is improved, and the product quality is improved.

Description

Technical Field

[0001] This invention belongs to the field of flat wire motor manufacturing, and relates to a stator winding and inserting fixture and stator limiting method for flat wire motors, especially for continuous wave winding flat wire motors used in new energy vehicles. Background Technology

[0002] With the technological advancement of electric vehicles, the power density of electric vehicle motors has also increased, requiring electric drive systems to move towards higher efficiency, lighter weight, and lower cost. Due to the higher power density of flat wire motors, their application is becoming increasingly widespread.

[0003] Flat wire motors consist of a rotor and a flat wire stator. The flat wire stator comprises an iron core and flat wire windings. In the production of continuous wave winding electric drives, there are winding and inserting processes and stator shaping processes. The winding and inserting process is used to insert the flat wire windings into the stator slots along the circumferential direction to make them a whole. The stator shaping process is used to compact the straight sections and lead-out ends of the wound stator to increase the slot fill factor, preparing for the subsequent assembly of the inner and outer stators into a whole. The current process involves the following steps: manual pressing, manual fixing of the stator product, manual insertion of the flat wire into the slots using tools, and manual shaping using tools. Because these steps are performed manually, production efficiency is reduced, the manual operation requirements are high, the product scrap rate is extremely high, and the mechanical and chemical properties of the product are affected. Chinese patent CN106059220A discloses a stator winding support fixture for a traction motor. When using this fixture, the stator is placed on it for the winding process. During operation, the stator is rotated to wind the entire inner ring of the stator core. While this reduces manual intervention to some extent, the entire stator is supported only by four roller assemblies, resulting in a small contact area between the roller assemblies and the outer wall of the stator. This makes the stator prone to wobbling during winding, leading to inaccurate stator positioning and affecting subsequent processing and product quality. Furthermore, the aforementioned support fixture cannot be adjusted according to the size of the motor stator.

[0004] Therefore, there is an urgent need for a flat wire motor stator winding and inserting fixture that reduces manual intervention, can stably support the stator, accurately fix the stator, prevent the internal flat wire motor stator from shaking, improve production efficiency, and improve product quality. Summary of the Invention

[0005] In view of the shortcomings of the prior art described above, the purpose of this application is to provide a flat wire motor stator winding and inserting tooling and stator limiting method that reduces manual intervention, can stably support the stator, accurately fix the stator, prevent the internal flat wire motor stator from shaking, improve production efficiency, and improve product quality.

[0006] To solve the above problems, the technical solution adopted in this application is: This invention provides a stator limiting device for a flat wire motor, comprising a rotating body and a stator clamping mechanism coaxially sleeved outside the rotating body. The rotating body includes a rotating shaft and a support assembly sleeved on the outer wall of the rotating shaft and rotating with the rotating shaft. The support assembly has an outer cylindrical surface extending along the axis of the rotating body. The stator clamping mechanism includes two clamping discs that are parallel to each other and opposite to each other along the axis of the rotating body. The outer cylindrical surface of the support assembly is located between the two clamping discs. Each clamping disc has a plurality of inlay grooves penetrating the clamping disc along the thickness direction on its outer edge. The number of inlay grooves on each clamping disc is equal to the number of stator grooves on the stator to be clamped. The inlay grooves on the two clamping discs correspond one-to-one and are aligned along the axis of the rotating body.

[0007] As a preferred embodiment of this application, the wire inlay groove is strip-shaped and arranged radially along the clamping disk, and the outer end of the wire inlay groove away from the rotation axis extends to the outer edge of the clamping disk to form a notch for the wire to freely enter and exit.

[0008] As a preferred embodiment of this application, the support assembly includes an upper pressure member, a middle partition sleeve, and a lower pressure member sequentially mounted on a rotating shaft. The middle partition sleeve has an outer cylindrical surface, and the upper pressure member and the middle partition sleeve together define a first slot for engaging with the inner edge of the clamping disc. The lower pressure member and the middle partition sleeve together define a second slot for engaging with the inner edge of the clamping disc. The two clamping discs are detachably mounted at the first slot and the second slot, respectively.

[0009] As a preferred embodiment of this application, the clamping disc includes a disc body detachably mounted on the support assembly and a plurality of positioning teeth radially formed from the disc body, with a wire-inserting groove formed between each pair of adjacent positioning teeth; when the stator clamping mechanism clamps the stator, the wire-inserting groove and the stator groove aligned along the axis of rotation of the rotating body together form a wire-inserting channel.

[0010] As a preferred embodiment of this application, the inner edge of the disc body is provided with an anti-detachment part.

[0011] As a preferred embodiment of this application, the outer edges of both ends of the spacer sleeve are uniformly provided with multiple radial positioning grooves along the circumferential direction.

[0012] As a preferred embodiment of this application, each of the two positioning teeth has a positioning protrusion on its opposing tooth surface for engaging with the positioning slot, and the outer end of the positioning protrusion away from the rotation axis extends beyond the outer cylindrical surface of the spacer sleeve.

[0013] As a preferred embodiment of this application, a buffer sheet is provided on the outside of the intermediate partition sleeve to prevent hard contact between the inner wall of the stator and the intermediate partition sleeve.

[0014] As a preferred embodiment of this application, the outer tooth end of the positioning tooth away from the rotation axis is integrally formed with a retaining edge.

[0015] Alternatively, the outer tooth end of the positioning guard tooth away from the rotation axis is connected to a stop edge, which is L-shaped and includes a retractable connecting horizontal part and a blocking part. The connecting horizontal part includes several sequentially connected connecting horizontal bars, wherein one of each pair of adjacent connecting horizontal bars can be retracted into the other connecting horizontal bar, and the two adjacent connecting horizontal bars are locked and fixed to each other by a locking member.

[0016] As a preferred embodiment of this application, the locking component includes multiple limiting holes arranged along the length of the connecting crossbar and elastic clips that can engage with the limiting holes. The limiting holes and elastic clips are respectively disposed on two connected connecting crossbars. The elastic clips are V-shaped, and the two opposite ends of the elastic clips on one connecting crossbar are respectively inserted into the limiting holes of the connected crossbar. By selecting the extension length of the flange according to the outer diameter of the stator to be clamped, and in conjunction with the intermediate spacer, the stator can be stably clamped between the clamping discs, reducing the wobbling of the stator during processing, thereby improving the quality of the product.

[0017] As a preferred embodiment of this application, the anti-detachment part and the guard edge are respectively disposed on both sides of the disc body.

[0018] As a preferred embodiment of this application, each of the two clamping discs has a corresponding edge and is aligned in the direction of the axis of rotation, and each edge is provided with a groove between itself and the positioning protrusion.

[0019] As a preferred embodiment of this application, the lower part of the rotating shaft is provided with a radial support platform, and the lower end surface of the pressing member is provided with a groove that is adapted to the radial support platform.

[0020] As a preferred embodiment of this application, the flat wire motor stator winding and inserting fixture further includes an anti-wear mechanism, which is detachably mounted on the outside of the clamping disc to prevent the flat wire from contacting at least a portion of the clamping disc, thereby reducing friction between the flat wire and the clamping disc.

[0021] As a preferred embodiment of this application, the anti-wear mechanism includes a limiting groove disposed at the lower part of the support component and at least two arc-shaped anti-wear strips, wherein the arc-shaped anti-wear strips are detachably embedded in the limiting groove.

[0022] As a preferred embodiment of this application, the support assembly is configured with several series of spacer sleeves with different outer diameters, that is, the outer diameter of the outer cylindrical surface of each spacer sleeve is different, which facilitates the adaptation to stators with different inner diameters. In use, a suitable spacer sleeve can be selected according to the inner diameter of the stator to be clamped.

[0023] As a preferred embodiment of this application, the flat wire motor stator winding and inserting fixture is equipped with several stator clamping mechanisms, each with a different number of inserting channels. In use, a suitable stator clamping mechanism can be selected based on the number of stator slots of the stator to be clamped, thus adapting to various stators.

[0024] As a preferred embodiment of this application, the flat wire motor stator winding and inserting fixture further includes several pressure detection sensors, and at least one positioning protrusion on the stator clamping mechanism is provided with a pressure detection sensor for detecting the pressure on the stator.

[0025] This application allows for subsequent work after the stator limiting assembly is placed onto the flat wire motor stator winding and inserting fixture. After winding is completed, the upper pressure piece can be removed, followed by the removal of the rotating shaft. The remaining parts are then placed into the next processing step for machining. After machining is completed, the clamping disc and the intermediate spacer sleeve are removed. The entire process is convenient and quick.

[0026] The present invention also provides a stator limiting method, comprising the following steps: Step 1: Assemble the pressing part onto the rotating shaft, ensuring that the radial support platform of the rotating shaft is engaged in the groove of the pressing part; Step 2: Select two suitable clamping discs according to the size and number of slots of the stator to be clamped, and assemble one of the clamping discs onto the rotating shaft; during installation, the flange of the clamping disc should face upwards. Step 3: Select a suitable intermediate sleeve according to the size and number of slots of the stator to be clamped, assemble the intermediate sleeve on the rotating shaft, and adjust the position of the intermediate sleeve until each positioning protrusion on the assembled clamping disc is engaged in the corresponding radial positioning slot of the intermediate sleeve. Step 4: Assemble the stator on the outside of the intermediate spacer sleeve and adjust the position of the stator until all the positioning protrusions on the clamping disc simultaneously engage with the stator slots of the stator. Step 5: Take another clamping disc and mount it on the rotating shaft with the flange facing down. Adjust the position of the clamping disc until each positioning protrusion on the clamping disc is engaged in the corresponding radial positioning slot of the intermediate spacer. At this time, the wire embedding slot and stator slot of the clamping disc are aligned in the direction of the rotating body axis, and together they form a wire embedding channel. Step 6: Assemble the upper pressure component onto the rotating shaft, and then assemble the anti-wear mechanism onto the lower pressure component to complete the stator limit assembly.

[0027] Compared with the prior art, the beneficial effects of this application are: 1. The flat wire motor stator winding and inserting fixture of this application can perform dual positioning of the inner wall and end of the stator through the stator clamping mechanism, which increases the contact area between the fixture and the stator, effectively preventing the stator from shaking during winding and transfer, making the stator positioning accurate, preventing the stator position from shifting during transfer, ensuring the installation position of the product, and after the work is completed, the fixture is clamped by the production line manually or by the transfer structure and enters the downstream process to cooperate with the downstream process for motor production, significantly improving the quality of the product stator; 2. The winding tooling of this application adopts a split assembly, which can be flexibly adjusted according to the size of the stator product and the number of stator slots, making it easy to adapt to different models of stator products; 3. The winding tooling of this application is designed with upper and lower clamping discs that can position the end of the stator. When the stator clamping mechanism clamps the stator, the winding grooves and stator grooves aligned along the axis of rotation together form a winding channel, which can make the coils neatly arranged, prevent the coils from crossing during winding, ensure winding quality, and improve production efficiency. 4. The winding tooling of this application can be designed as a spacer sleeve with multiple series of outer diameters, which makes it convenient to select a spacer sleeve with a suitable outer diameter according to the size of the stator product. 5. The winding tooling of this application can be designed as a series of winding channels stator clamping mechanisms, which makes it convenient to select the appropriate stator clamping mechanism according to the number of stator slots of the stator product, thereby improving the adaptability of the tooling. 6. The anti-wear mechanism embedded on the outer ring wall of the clamping disc in this application can effectively reduce the friction between the flat wire and the clamping disc, prevent wire damage, and further improve product quality; 7. Using the limiting device of this application as a production medium reduces direct human contact with stator products, improves overall layout, increases production efficiency, reduces labor costs, and improves product quality. Attached Figure Description

[0028] Figure 1 This is a structural diagram of a flat wire motor stator winding and inserting tool according to an embodiment of the present invention.

[0029] Figure 2 This is a front view of a flat wire motor stator winding and inserting tool according to an embodiment of the present invention.

[0030] Figure 3 This is a left view of a flat wire motor stator winding and inserting fixture according to an embodiment of the present invention.

[0031] Figure 4 This is a top view of a flat wire motor stator winding and inserting fixture according to an embodiment of the present invention.

[0032] Figure 5 This is a cross-sectional view of a flat wire motor stator winding and inserting tool according to an embodiment of the present invention.

[0033] Figure 6 for Figure 5 One of the enlarged partial views shows a schematic diagram of the installation of the upper pressure component and the middle partition sleeve.

[0034] Figure 7 for Figure 5 The second enlarged view shows a schematic diagram of the installation between the intermediate partition and the lower pressure component. In the attached image:

[0035] 1-Rotating body; 11-Rotating shaft; 111-Radial support platform; 12-Support assembly; 121-Upper pressure piece; 122-Intermediate sleeve; 1221-Outer cylindrical surface; 1222-Radial positioning slot; 123-Lower pressure piece; 124-First slot; 125-Second slot; 2-Stator clamping mechanism; 21-Clamping disc; 211-Disc body; 2111-Anti-detachment part; 212-Positioning guard; 2121-Positioning protrusion; 2122-Side guard; 213-Wire groove; 214-Irregular groove; 3- Anti-wear mechanism. Detailed Implementation

[0036] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. This application can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application.

[0037] It should be noted that the process equipment or apparatus not specifically mentioned in the following embodiments are all conventional equipment or apparatus in the art.

[0038] Furthermore, it should be understood that the existence of other method steps before or after the combined steps, or the insertion of other method steps between these explicitly mentioned steps, does not preclude the existence of other method steps before or after the combined steps, or the insertion of other method steps between these explicitly mentioned steps, unless otherwise stated. It should also be understood that the combined connection relationship between one or more devices / apparatus mentioned in this application does not preclude the existence of other devices / apparatus before or after the combined devices / apparatus, or the insertion of other devices / apparatus between these explicitly mentioned devices / apparatus, unless otherwise stated. Moreover, unless otherwise stated, the numbering of each method step is merely a convenient tool for identifying each method step, and not for limiting the order of the method steps or limiting the scope of implementation of this application. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of implementation of this application.

[0039] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0040] In the description of this application, it should be understood that the terms "upper," "lower," "left," "right," "inner," "outer," "axial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0041] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0042] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] The present application will be further described below with reference to specific embodiments, but the scope of protection of the present application is not limited thereto.

[0044] like Figures 1-5As shown, the present invention discloses a flat wire motor stator winding and inserting fixture, comprising a rotating body 1 and a stator clamping mechanism 2 coaxially sleeved outside the rotating body 1. The rotating body 1 includes a rotating shaft 11 and a support assembly 12 sleeved on the outer wall of the rotating shaft 11 and rotating with the rotating shaft 11. The support assembly 12 has an outer cylindrical surface 1221 for fitting against the inner wall of the stator. The stator clamping mechanism 2 includes two clamping discs 21 parallel to each other and arranged opposite to each other in the axial direction of the rotating body 1. The outer cylindrical surface 1221 of the support assembly 12 is located between the two clamping discs 21. Each clamping disc 21 has a plurality of inserting grooves 213 penetrating the clamping disc 21 along the thickness direction. The number of inserting grooves 213 of each clamping disc 21 is equal to the number of stator grooves of the stator to be clamped. The inserting grooves 213 of the two clamping discs 21 correspond one-to-one and are aligned in the axial direction of the rotating body 1.

[0045] like Figure 3 As shown, the wire inlay groove 213 is strip-shaped and arranged radially along the clamping disk 21, and the outer end of the wire inlay groove 213 away from the rotation axis extends to the edge of the clamping disk 21, forming a notch for the wire to freely enter and exit.

[0046] like Figure 5 As shown, the support assembly 12 includes an upper pressure member 121, a middle partition sleeve 122, and a lower pressure member 123 sequentially mounted on the rotating shaft 11. The middle partition sleeve 122 has an outer cylindrical surface 1221, and the upper pressure member 121 and the middle partition sleeve 122 together define a first slot 124 for engaging with the inner edge of the clamping disc 21. The lower pressure member 123 and the middle partition sleeve 122 together define a second slot 125 for engaging with the inner edge of the clamping disc 21. The two clamping discs 21 are detachably mounted at the first slot 124 and the second slot 125, respectively.

[0047] like Figure 5 , Figure 6 and Figure 7 As shown, the clamping disc 21 includes a disc body 211 detachably mounted on the support assembly 12 and a plurality of positioning teeth 212 radially formed from the disc body 211, with a wire-inserting groove 213 formed between each two adjacent positioning teeth 212; when the stator clamping mechanism 2 clamps the stator, the wire-inserting groove 213 and the stator groove aligned along the axis of the rotating body 1 together form a wire-inserting channel.

[0048] like Figure 6 and Figure 7 As shown, the inner edge of the disc body 211 is provided with an anti-detachment part 2111.

[0049] like Figure 5 , Figure 6 and Figure 7 As shown, multiple radial positioning slots 1222 are uniformly arranged circumferentially along the outer edges of both ends of the spacer sleeve 122.

[0050] like Figure 5 , Figure 6 and Figure 7 As shown, each of the two positioning teeth 212 has a positioning protrusion 2121 on its opposite tooth surface for engaging in the positioning slot, and the outer end of the positioning protrusion 2121 away from the rotation axis 11 extends beyond the outer cylindrical surface 1221 of the intermediate sleeve 122.

[0051] In some embodiments of the present invention, a buffer sheet is provided on the outside of the intermediate sleeve to prevent hard contact between the inner wall of the stator and the intermediate sleeve.

[0052] like Figure 1 As shown, the outer tooth end of the positioning guard tooth away from the rotation axis is integrally formed with a retaining edge.

[0053] In some embodiments of the present invention, the outer tooth end of the positioning guard tooth away from the rotation axis is connected to a stop edge, the stop edge is L-shaped and includes a retractable connecting horizontal part and a blocking part. The connecting horizontal part includes a plurality of sequentially connected connecting horizontal bars, wherein one of each pair of adjacent connecting horizontal bars can be retracted into the other connecting horizontal bar, and the two adjacent connecting horizontal bars are locked and fixed to each other by a locking member.

[0054] In some embodiments of the present invention, the locking member includes a plurality of limiting holes arranged along the length direction of the connecting crossbar and elastic pieces that can engage with the limiting holes. The limiting holes and elastic pieces are respectively disposed on two connected connecting crossbars. The elastic pieces are V-shaped, and the two opposite ends of the elastic pieces of one connecting crossbar are respectively inserted into the limiting holes of the connected crossbar. By selecting the extension length of the flange according to the outer diameter of the stator to be clamped, and in conjunction with the intermediate spacer, the stator can be stably clamped between the clamping discs, reducing the wobbling of the stator during processing, thereby improving the quality of the product.

[0055] like Figure 5 , Figure 6 and Figure 7 As shown, the anti-detachment part and the baffle are respectively disposed on both sides of the disc body.

[0056] like Figure 7 As shown, the outer tooth end of the positioning guard tooth 212 away from the rotation axis 11 is integrally formed with a retaining edge 2122. Each retaining edge 2122 of the two clamping discs 21 corresponds to one another and is aligned in the axial direction of the rotating body 1. A special groove 214 is provided between each retaining edge 2122 and the positioning protrusion 2121.

[0057] like Figure 5 , Figure 7 As shown, the lower part of the rotating shaft 11 is provided with a radial support platform 111, and the lower end surface of the pressing member 123 is provided with a groove that is adapted to the radial support platform 111.

[0058] like Figure 7 As shown, the flat wire motor stator winding and inserting fixture of the present invention also includes an anti-wear mechanism 3, which is detachably embedded on the outside of the clamping disc to prevent friction between the flat wire and the clamping disc. like Figure 2 , Figure 3 As shown, the anti-wear mechanism 3 includes a limiting groove disposed at the lower part of the support component 12 and at least two arc-shaped anti-wear strips, wherein the arc-shaped anti-wear strips are detachably embedded in the limiting groove.

[0059] In some embodiments of the present invention, the support assembly is configured with several series of spacer sleeves with different outer diameters, that is, the outer diameter of the outer cylindrical surface of each spacer sleeve is different, which facilitates adaptation to stators with different inner diameters. In use, a suitable spacer sleeve can be selected according to the inner diameter of the stator to be clamped.

[0060] In some embodiments of the present invention, the flat wire motor stator winding and inserting fixture is equipped with several stator clamping mechanisms, each of which has a different number of inserting channels. In use, a suitable stator clamping mechanism can be selected based on the number of stator slots of the stator to be clamped, thereby adapting to various types of stators.

[0061] In some embodiments of the present invention, the flat wire motor stator winding and inserting fixture further includes several pressure detection sensors, and at least one positioning protrusion on the stator clamping mechanism is provided with a pressure detection sensor for detecting the pressure on the stator.

[0062] The present invention also provides a stator limiting method, comprising the following steps: Step 1: Assemble the pressing part 123 onto the rotating shaft 11, ensuring that the radial support platform 111 of the rotating shaft 11 is engaged in the groove of the pressing part 123; Step 2: Select two suitable clamping discs 21 according to the size and number of slots of the stator to be clamped, and assemble one of the clamping discs 21 onto the rotating shaft 11; during installation, the flange 2122 of the clamping disc 21 is arranged facing upwards. Step 3: Select a suitable spacer sleeve 122 according to the size and number of slots of the stator to be clamped, assemble the spacer sleeve 122 on the rotating shaft 11, and adjust the position of the spacer sleeve 122 until each positioning protrusion 2121 on the assembled clamping disc 21 is engaged in the corresponding radial positioning slot 1222 of the spacer sleeve 122. Step 4: Assemble the stator on the outside of the intermediate sleeve 122, and adjust the position of the stator until all the positioning protrusions 2121 on the clamping disc 21 are simultaneously engaged in the stator slots of the stator. Step 5: Take another clamping disc 21 and assemble it onto the rotating shaft 11 with the flange 2122 facing down. Adjust the position of the clamping disc 21 until each positioning protrusion 2121 on the clamping disc 21 is engaged in the corresponding radial positioning slot 1222 of the spacer sleeve 122. At this time, the wire embedding slot 213 and the stator slot of the clamping disc 21 are aligned in the axial direction of the rotating body 1, and together they form a wire embedding channel. Step 6: Assemble the upper pressure component 121 onto the rotating shaft 11, and then assemble the anti-wear mechanism 3 onto the lower pressure component 123 to complete the stator limiting assembly.

[0063] The above embodiments are for illustrating the implementation schemes disclosed in this application and should not be construed as limiting this application. Furthermore, various modifications listed herein, as well as variations in methods and compositions of the invention, will be apparent to those skilled in the art without departing from the scope and spirit of this application. Although this application has been specifically described in conjunction with various specific preferred embodiments, it should be understood that this application should not be limited to these specific embodiments. In fact, various modifications as described above that are obvious to those skilled in the art to obtain the invention should be included within the scope of this application.

Claims

1. A stator winding and inserting fixture for a flat wire motor, characterized in that, The device includes a rotating body (1) and a stator clamping mechanism (2) coaxially sleeved outside the rotating body (1). The rotating body (1) includes a rotating shaft (11) and a support assembly (12) sleeved on the outer wall of the rotating shaft (11) and rotating with the rotating shaft (11). The support assembly (12) has an outer cylindrical surface (1221) extending along the axis of the rotating body. The stator clamping mechanism (2) includes two clamping discs (21) that are parallel to each other and opposite to each other in the axis of the rotating body. The outer cylindrical surface (1221) of the support assembly (12) is located between the two clamping disks (21). Each clamping disk (21) has multiple inlay grooves (213) that penetrate the clamping disk (21) along the thickness direction. The number of inlay grooves (213) of each clamping disk (21) is equal to the number of stator grooves of the stator to be clamped. The inlay grooves (213) of the two clamping disks (21) correspond one-to-one and are aligned in the axial direction of the rotating body (1).

2. The flat wire motor stator winding and inserting fixture according to claim 1, characterized in that: The support assembly (12) includes an upper pressure member (121), a middle sleeve (122), and a lower pressure member (123) sequentially mounted on the rotating shaft (11). The middle sleeve (122) has an outer cylindrical surface (1221), and the upper pressure member (121) and the middle sleeve (122) together define a first slot (124) for engaging with the inner edge of the clamping disc (21). The lower pressure member (123) and the middle sleeve (122) together define a second slot (125) for engaging with the inner edge of the clamping disc (21). The two clamping discs (21) are detachably mounted at the first slot (124) and the second slot (125), respectively.

3. The flat wire motor stator winding and inserting fixture according to claim 1, characterized in that: The clamping disc (21) includes a disc body (211) detachably mounted on the support assembly (12) and a plurality of positioning teeth (212) radially formed from the disc body (211), with a wire-inserting groove (213) formed between each two adjacent positioning teeth (212); when the stator clamping mechanism (2) clamps the stator, the wire-inserting groove (213) aligned along the axis of the rotating body (1) and the stator groove together form a wire-inserting channel.

4. The flat wire motor stator winding and inserting fixture according to claim 1, characterized in that: The inner edge of the disc body (211) is provided with an anti-detachment part (2111).

5. The flat wire motor stator winding and inserting fixture according to claim 2, characterized in that: Multiple radial positioning slots (1222) are uniformly arranged circumferentially along the outer edges of both ends of the spacer sleeve (122).

6. The flat wire motor stator winding and inserting fixture according to claim 5, characterized in that: The two positioning teeth (212) are provided with positioning protrusions (2121) on their opposing tooth surfaces for engaging in positioning slots, and the outer end of the positioning protrusions (2121) away from the rotation axis (11) extends beyond the outer cylindrical surface (1221) of the intermediate sleeve (122).

7. The flat wire motor stator winding and inserting fixture according to claim 3, characterized in that: The outer tooth end of the positioning tooth (212) away from the rotation axis (11) is integrally formed with a retaining edge (2122). Each retaining edge (2122) of the two clamping discs (21) corresponds to one another and is aligned in the direction of the axis of the rotating body (1). A special groove (214) is provided between each retaining edge (2122) and the positioning protrusion (2121).

8. The flat wire motor stator winding and inserting fixture according to claim 5, characterized in that: The lower part of the rotating shaft (11) is provided with a radial support platform (111), and the lower end surface of the pressing member (123) is provided with a groove that is adapted to the radial support platform (111).

9. A flat wire motor stator winding and inserting fixture according to claim 5, characterized in that: It also includes an anti-wear mechanism (3), which is detachably mounted on the outside of the clamping disc to prevent the flat wire from contacting at least a portion of the clamping disc.

10. A stator limiting method, characterized in that, Includes the following steps: Step 1: Assemble the pressing part (123) onto the rotating shaft (11), ensuring that the radial support platform (111) of the rotating shaft (11) is engaged in the groove of the pressing part (123); Step 2: Select two suitable clamping discs (21) according to the size and number of slots of the stator to be clamped, and assemble one of the clamping discs (21) onto the rotating shaft (11); during installation, the flange (2122) of the clamping disc (21) is arranged facing upwards; Step 3: Select a suitable intermediate sleeve (122) according to the size and number of slots of the stator to be clamped, assemble the intermediate sleeve (122) on the rotating shaft (11), and adjust the position of the intermediate sleeve (122) until each positioning protrusion (2121) on the assembled clamping disc (21) is inserted into the corresponding radial positioning slot (1222) of the intermediate sleeve (122); Step 4: Assemble the stator on the outside of the middle partition sleeve (122), and adjust the position of the stator until all the positioning protrusions (2121) on the clamping disc (21) are simultaneously engaged in the stator slots of the stator; Step 5: Take another clamping disc (21), mount the clamping disc (21) with the flange (2122) facing down on the rotating shaft (11), adjust the position of the clamping disc (21) until each positioning protrusion (2121) on the clamping disc (21) is inserted into the corresponding radial positioning slot (1222) of the spacer sleeve (122). At this time, the wire embedding groove (213) and stator groove of the clamping disc (21) are aligned in the axial direction of the rotating body (1) to jointly construct the wire embedding channel. Step 6: Assemble the upper pressure piece (121) onto the rotating shaft (11), and then assemble the blocking mechanism (3) onto the lower pressure piece (123) to complete the stator limiting assembly.

Images