Machine shell stator assembly press-fitting device

Abstract

The invention, which relates to the technical field of the press-fitting apparatus, discloses a press-fitting apparatus for a casing stator assembly, comprising a frame, a heating assembly, a pressing assembly and an anti-offset structure. The heating assembly is firstly driven to move towards the downward pressing assembly, and the heating assembly extends into the machine shell after passing through the positioning hole to heat the inner wall of the machine shell; then the pressing assembly is driven to drive the machine shell to vertically move downwards, the machine shell is pressed to the outer side of the stator, an anti-deviation structure arranged in the stator and below the machine shell in the coaxial direction is matched, the stator is fixed and corrected in the pressing process, the axis of the stator and the axis of the machine shell coincide, deviation of the pressing path is reduced, and the assembling precision of the machine shell and the stator is improved; the inner wall shrinks after the casing is naturally cooled and clings to the outer wall of the stator, so that the assembly is firmer; by means of the structure, heating and press-fitting in the device are operated in a linkage mode, the process is simple, efficiency is high, and secondary positioning errors cannot be introduced.

Description

Technical Field

[0001] The present invention relates to the technical field of press-fitting devices, and in particular to a press-fitting device for a housing stator assembly. Background Art

[0002] In the field of motor manufacturing, the precise press-fitting of the housing and the stator is a key process to ensure the structural stability and operating performance of the assembly. Traditional press-fitting processes usually use external heat sources (such as ovens, induction coils) to heat the entire housing, and then press the stator into the housing by mechanical pressure.

[0003] However, during the press-fitting process, the coaxiality between the housing and the stator depends on manual or simple fixture adjustment, lacking a dynamic deviation correction mechanism, and is prone to component eccentricity due to the deviation of the press-fitting path, with low positioning accuracy, affecting the running smoothness of the motor; secondly, the external heat source has a complex structure and serious heat dissipation, affecting the dimensional accuracy after assembly; in addition, existing press-fitting equipment often separates heating and press-fitting, resulting in cumbersome processes, low efficiency, and easy introduction of secondary positioning errors during multi-station conversion. Summary of the Invention

[0004] The purpose of the present invention is to provide a press-fitting device for a housing stator assembly. The press-fitting device for a housing stator assembly of the present invention can achieve that the heating element directly acts on the inner wall of the housing, accurately guides the press-fitting path, and has a dynamic deviation correction function, and the coordinated operation of the heating component and the press-fitting mechanism to achieve high-precision alignment and improve the assembly efficiency of the housing stator assembly.

[0005] The present invention is achieved by the following technical solutions: A press-fitting device for a housing stator assembly, comprising: a frame; At least one heating component, which is arranged inside the frame and is used for heating the housing; A downward pressing component, which is located below the heating component and is used for pressing the housing. At least one positioning hole for accommodating the heating component to pass through is opened on the downward pressing component, and a positioning fixture for fixing the housing is arranged at a corresponding position below the positioning hole; An anti-offset structure, which is arranged on the frame and is used for fixing the stator and correcting the deviation of the stator during the press-fitting process to make the center line of the stator collinear with the center line of the housing.

[0006] Preferably, the anti-offset structure includes a self-centering structure, and the self-centering structure includes a base body and a plurality of claws. A rotating ring that can rotate relative to the base body is embedded in the base body. The claw includes a connecting plate, and the connecting plate has two connecting parts, and the two connecting parts are respectively rotatably connected to the base body and the rotating ring. Rotating the rotating ring can drive the plurality of claws to approach or move away from each other.

[0007] Preferably, a rotating groove is provided on the outer side of the base, and a rotating rod is provided on the rotating ring, the rotating rod passes through the rotating groove, and a fixed rod is provided at one end of the rotating groove on the base, and the rotating rod is rotated to approach or move away from the fixed rod, so that the rotating ring drives the plurality of claws to approach or move away from each other; an arc-shaped inclined surface is provided at the bottom of the positioning fixture, and the inclined surface is inclined downward from the end away from the rotating rod, and the rotating rod first contacts the lowest end of the inclined surface and then contacts the highest end of the inclined surface.

[0008] Preferably, a support plate is provided on the top surface of the base to support the stator.

[0009] Preferably, the anti-deviation structure also includes a plurality of guide posts, which are all located around the outer ring of the stator; a plurality of guide holes are opened on the casing, and the guide posts correspond to the guide holes one by one to fix the casing; the top end of the guide post is a hemispherical or conical rounded transition surface.

[0010] Preferably, the heating assembly includes a cylinder and a plurality of cylinder fixing plates, and a cylinder heat insulation plate, a cylinder connecting plate, a heating rod connecting rod and a heating rod are fixedly connected in sequence below the cylinder fixing plates; an outer diameter d1 of the heating rod is smaller than an inner diameter d2 of the casing.

[0011] Preferably, a heat insulation cover is also provided on the outside of the heating assembly above the pressing assembly.

[0012] Preferably, the positioning fixture comprises at least three casing positioning blocks evenly distributed along the circumferential direction of the casing, the casing positioning blocks are connected to the bottom surface of the pressing assembly via sliding grooves, and the casing positioning blocks can move radially to adapt to casings of different diameters.

[0013] Preferably, the surface of the claw is provided with serrations for clamping the stator.

[0014] Preferably, the top end of the guide post is a tapered rounded transition surface, and the tapered rounded transition surface at the top end of the guide post first contacts the edge of the guide hole to automatically correct the coaxiality deviation between the guide post and the guide hole.

[0015] The present invention has the following beneficial effects: The invention discloses a press-fitting device for a casing stator assembly. The device first drives a heating assembly to move in the direction of a pressing assembly, and the heating assembly extends into the casing after passing through a positioning hole to heat the inner wall of the casing. The pressing assembly is then driven to drive the casing to move vertically downward, and the casing is press-fitted to the outer side of the stator. An anti-deviation structure provided in the coaxial direction below the casing inside the stator is used to fix the stator and correct the deviation of the stator during the press-fitting process, so that the axis of the stator and the casing coincide, the deviation of the press-fitting path is reduced, and the assembly accuracy of the casing and the stator is improved. After the casing is naturally cooled, the inner wall of the casing shrinks and is tightly attached to the outer wall of the stator, so that the assembly is more firm. Moreover, the heating and press-fitting in the device are operated in linkage, the process is simple, the efficiency is high, and no secondary positioning error is introduced. Brief Description of the Drawings

[0016] Figure 1 is a schematic diagram of the overall structure of the housing stator assembly pressing device proposed by the present invention; Figure 2 is Figure 1 a schematic diagram of the internal structure of; Figure 3 is a schematic diagram of the structure of the heating component of the present invention; Figure 4 is an assembly schematic diagram of the heating component and the downward pressing component of the present invention; Figure 5 is an assembly schematic diagram of the guide hole and the guide post of the present invention; Figure 6 is a schematic diagram of the overall structure of the self-centering structure of the present invention; Figure 7 is Figure 6 a schematic diagram of the internal structure of.

[0017] Legend Explanation: Frame; 2. Heating component; 201. Cylinder; 202. Cylinder fixing plate; 203. Cylinder heat insulation plate; 204. Cylinder connecting plate; 205. Heating rod connecting rod; 206. Heating rod; 207. Heat insulation cover; 3. Downward pressing component; 301. Positioning hole; 302. Positioning fixture; 3021. Housing positioning block; 4. Housing; 401. Guide hole; 5. Stator; 6. Anti-offset structure; 601. Self-centering structure; 6011. Base; 6012. Claw; 6013. Rotating ring; 6014. Rotating groove; 6015. Rotating rod; 6016. Fixed rod; 6017. Support plate; 602. Guide post; Detailed Embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment:

[0019] Referring to Figures 1 to 6 , a housing stator assembly pressing device provided by the present invention includes: a frame 1; In practical applications, the frame 1 can be selected or adjusted according to needs. Usually, there is a frame-structured frame 1 and a box-structured frame 1. The frame 1 in the embodiments of the present invention refers to Figure 1, the upper part is a box structure and the upper part is a frame structure; this facilitates proper adjustment during the placement and press-fitting of the casing 4 and the stator 5, and is also conducive to taking out the assembled parts after the press-fitting is completed.

[0020] At least one heating component 2, the heating component 2 is arranged inside the frame 1 and is used to heat the casing 4; A downward pressing component 3, the downward pressing component 3 is located below the heating component 2 and is used to press-fit the casing 4. At least one positioning hole 301 through which the heating component 2 can pass is provided on the downward pressing component 3, and a positioning fixture 302 for fixing the casing 4 is provided at the corresponding position below the positioning hole 301; An anti-offset structure 6, the anti-offset structure 6 is arranged on the frame 1 and is used to fix the stator 5 and correct the deviation of the stator 5 during the press-fitting process, so that the center line of the stator 5 is collinear with the center line of the casing 4.

[0021] In the press-fitting device for the casing-stator assembly provided by the present invention, a heating component 2 is arranged inside the frame 1 above the downward pressing component 3. At least one positioning hole 301 is provided on the downward pressing component 3, and a positioning fixture 302 is provided on the lower surface of the downward pressing component 3. The casing 4 is fixed in the positioning fixture 302, and the stator 5 is fixed on the anti-offset structure 6; each of the heating component 2, the positioning hole 301, the positioning fixture 302, the casing 4, the stator 5 and the anti-offset structure 6 is a group; when the device is started, first drive the heating component 2 to move towards the downward pressing component 3. After the heating component 2 passes through the positioning hole 301, it extends into the inside of the casing 4 to heat the inner wall of the casing 4. After the inner wall of the casing 4 is heated, its ductility is enhanced, and at the same time, the risk of deformation of the casing 4 is reduced; then drive the downward pressing component 3 to drive the casing 4 to move vertically downward. The casing 4 is separated from the heating component 2, and the casing 4 moves above the stator 5. The device drives the downward pressing component 3 to press down, press-fits the casing 4 to the outside of the stator 5, and cooperates with the anti-offset structure 6 provided in the coaxial direction below the casing 4 inside the stator 5 to fix the stator 5 and correct the deviation of the stator 5 during the press-fitting process, so that the stator 5 coincides with the axis of the casing 4, reduce the deviation of the press-fitting path, improve the assembly accuracy of the casing 4 and the stator 5. After the casing 4 is naturally cooled, its inner wall shrinks and tightly adheres to the outer wall of the stator 5, and the assembly is more firm.

[0022] The diameter of the positioning hole 301 is equal to the inner diameter of the casing 4 or the diameter of the positioning hole 301 is 1-3 mm larger than the inner diameter of the casing 4, and the internal accommodation space of the positioning fixture 302 is larger than the outermost circle of the casing 4.

[0023] Further, in another embodiment, the anti-offset structure 6 includes a self-centering structure 601. The self-centering structure 601 includes a base body 6011 and a plurality of claws 6012. A rotating ring 6013 that can rotate relative to the base body 6011 is embedded in the base body 6011. The claw 6012 includes a connecting plate, and the connecting plate has two connecting portions, and the two connecting portions are respectively rotatably connected to the base body 6011 and the rotating ring 6013. Rotating the rotating ring 6013 can drive the plurality of claws 6012 to approach or move away from each other.

[0024] A rotatable rotating ring 6013 is embedded inside the base body 6011 of the self-centering structure 601. The claw 6012 is respectively connected to the base body 6011 and the rotating ring 6013 through two connecting portions on the connecting plate. When the rotating ring 6013 is rotated, due to the rotational connection relationship between the claw 6012 and the rotating ring 6013 and the base body 6011, it will drive the plurality of claws 6012 to approach or move away from each other, so as to clamp or release the stator 5.

[0025] Further, in another embodiment, the claw 6012 can be a forward claw, which is arranged inside the stator 5 to clamp and fix the stator 5 outward; the claw 6012 can also be a reverse claw, which is arranged outside the stator 5 to clamp and fix the stator 5 inward.

[0026] Further, in another embodiment, a rotating groove 6014 is provided on the outer side of the base body 6011, a rotating rod 6015 is provided on the rotating ring 6013, the rotating rod 6015 passes through the rotating groove 6014, and a fixing rod 6016 is provided at one end of the rotating groove 6014 on the base body 6011. Rotating the rotating rod 6015 closer to or away from the fixing rod 6016 enables the rotating ring 6013 to drive the plurality of claws 6012 to approach or move away from each other; an arc-shaped inclined surface is provided at the bottom of the positioning fixture 302, and the inclined surface slopes downward from the end far away from the rotating rod 6015, and the rotating rod 6015 first contacts the lowest end of the inclined surface and then contacts the highest end of the inclined surface.

[0027] A rotating groove 6014 is provided on the outer side of the base body 6011. The rotating rod 6015 on the rotating ring 6013 passes through the rotating groove 6014. At the same time, a fixing rod 6016 is provided at one end of the rotating groove 6014 on the base body 6011. By driving the rotating rod 6015 to approach or move away from the fixing rod 6016, the rotating ring 6013 can be driven to rotate. The bottom of the positioning fixture 302 is provided with an arc-shaped inclined surface, which slopes downward from the end far away from the rotating rod 6015. In practical applications, the arc-shaped inclined surface at the bottom of the positioning fixture 302 cooperates with the rotating rod 6015. When the pressing component 3 moves downward, the rotating rod 6015 slides along the inclined surface, converting the vertical downward pressure into the horizontal displacement of the rotating rod 6015, thereby driving the claw 6012 to fix the stator 5, enabling precise positioning while the pressing component 3 presses downward, realizing the linkage between the pressing component 3 and the anti-offset structure 6. It not only has a simple structure but also reduces the failure rate. In addition, the inclined surface structure does not require an additional power source, reducing energy consumption.

[0028] Further, in another embodiment, a support plate 6017 is provided on the top surface of the base body 6011 for supporting the stator 5. The support plate 6017 provides a stable support platform for the stator 5, ensuring that the stator 5 is in a proper position throughout the entire operation process, working in coordination with other parts of the anti-offset structure 6, and guaranteeing the stability and reliability of the press-fitting process.

[0029] Further, in another embodiment, the number of claws 6012 can be three or four. The surface of the claws 6012 is provided with patterns such as serrated patterns and cross patterns to increase the friction with the surface of the workpiece and ensure reliable clamping.

[0030] Further, in another embodiment, the self-centering structure 601 further includes a servo motor or a pneumatic cylinder for driving the rotating rod 6015 to achieve automatic driving. It not only shortens the clamping time of the self-centering structure 601 and improves production efficiency, but also has strong versatility and is convenient for maintenance.

[0031] Further, in another embodiment, the anti-offset structure 6 further includes a plurality of guide posts 602, and the guide posts 602 are all located around the outer circle of the stator 5; a plurality of guide holes 401 are opened on the machine shell 4, and the guide posts 602 correspond to the guide holes 401 one by one for fixing the machine shell 4. The guide posts 602 are all located around the outer circle of the stator 5 and extend into the guide holes 401 of the machine shell 4 as the pressing component 3 moves downward, providing an axial guiding path and restricting the radial offset of the machine shell 4 during press-fitting.

[0032] Further, in another embodiment, the top end of the guiding post 602 is a transition surface such as a hemispherical or conical rounded corner. When the casing 4 and the stator 5 are assembled, the transition surface at the top end of the guiding post 602 first contacts the edge of the guiding hole 401. Due to the design of the transition surface, the casing 4 generates a small amount of horizontal displacement, automatically correcting the coaxiality deviation between the guiding post 602 and the guiding hole 401, and achieving rapid alignment.

[0033] Further, in another embodiment, the anti-offset structure 6 is an elastic support assembly. The elastic support assembly includes a ring array of disc springs or rubber dampers, a position sensor, and a cylinder provided at the bottom of the stator 5. When the casing 4 is offset due to heating deformation or assembly error, the deformation amount of the elastic damping unit triggers the position sensor, and the linkage cylinder pushes the stator 5 to reset, avoiding damage to parts caused by hard contact.

[0034] Further, in another embodiment, the heating assembly 2 includes a cylinder 201 and a plurality of cylinder fixing plates 202. Below the cylinder fixing plate 202, a cylinder heat insulation plate 203, a cylinder connecting plate 204, a heating rod connecting rod 205, and a heating rod 206 are fixedly connected in sequence; the outer diameter d1 of the heating rod 206 is smaller than the inner diameter d2 of the casing 4; In actual use, the cylinder 201 pushes the heating rod 206 to reach a suitable heating position inside the casing 4. Since the outer diameter d1 of the heating rod 206 is smaller than the inner diameter d2 of the casing 4, the heating rod 206 can completely extend into the casing 4, thereby uniformly heating the entire inner wall of the casing 4; the heating assembly 2 and the cylinder 201 are fixed on the cylinder fixing plate 202 through connecting parts such as bolts and nuts. The cylinder fixing plate 202 is provided with mounting holes and positioning grooves to ensure the installation accuracy of the heating assembly 2 and the cylinder 201, and can effectively transfer the weight of the heating assembly 2 and the cylinder 201 and the forces generated during operation to the support structure, ensuring the stable operation of the entire system; through the precise drive of the cylinder 201, the heating assembly 2 can accurately reach the suitable position of the object to be heated, not only heating evenly, improving production efficiency, but also saving energy.

[0035] Further, in another embodiment, the outer diameter d1 of the heating rod 206 is 2 - 6 mm smaller than the inner diameter d2 of the casing 4.

[0036] Further, in another embodiment, a heat insulation cover 207 is further provided outside the heating assembly 2 above the pressing assembly 3. The heat insulation cover 207 wraps the heating assembly 2. When the heating assembly 2 generates heat during operation, the heat insulation cover 207 can prevent the heat from spreading to the surrounding environment, thereby reducing energy consumption.

[0037] Further, in another embodiment, the positioning fixture 302 includes at least three housing positioning blocks 3021 evenly distributed along the circumferential direction of the housing 4. The housing positioning blocks 3021 are connected to the bottom surface of the downward pressing assembly 3 through sliding grooves, and the housing positioning blocks 3021 can move radially to adapt to housings 4 with different diameters.

[0038] The housing positioning blocks 3021 can move radially to adapt to housings 4 with different diameters, which enhances the versatility of the fixture. At the same time, workers only need to perform simple operations to quickly adjust the positioning fixture 302, without the need for heavy physical labor, reducing manual intervention and labor intensity; the even distribution of multiple housing positioning blocks 3021 helps to reduce positioning errors and improve the position accuracy of the housing 4 during the processing; the design of radial movement enables the housing positioning blocks 3021 to closely fit the surface of the housing 4, enhancing the fixing effect of the fixture on the housing 4 and thus improving the stability during the processing.

[0039] Further, in another embodiment, anti-slip coatings are provided on the surfaces of the housing positioning blocks 3021 to increase the friction between the positioning fixture 302 and the housing 4, prevent sliding during the press-fitting process, and improve the accuracy and stability of the press-fitting.

[0040] Working principle: For the housing stator assembly press-fitting device provided by the present invention, when the device is started, first drive the heating assembly 2 to move towards the downward pressing assembly 3. The heating assembly 2 extends into the housing 4 after passing through the positioning hole 301 to heat the inner wall of the housing 4. After the inner wall of the housing 4 is heated, its ductility is enhanced, and at the same time, the risk of deformation of the housing 4 is reduced; then drive the downward pressing assembly 3 to drive the housing 4 to move vertically downward. The housing 4 separates from the heating assembly 2, and the housing 4 moves above the stator 5. The device drives the downward pressing assembly 3 to press down, press-fitting the housing 4 to the outside of the stator 5. Cooperating with the anti-offset structure provided in the coaxial direction below the housing 4 inside the stator 5, the stator 5 is fixed and corrected during the press-fitting process, so that the axes of the stator 5 and the housing 4 coincide, reducing the offset of the press-fitting path, improving the assembly accuracy of the housing 4 and the stator 5. After the housing 4 cools naturally, its inner wall shrinks and tightly adheres to the outer wall of the stator 5, making the assembly more firm.

[0041] Unless otherwise specified, in the present invention, if there are terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms used to describe the orientation or positional relationship in the present invention are only for illustrative purposes and should not be construed as a limitation of the present invention. For those of ordinary skill in the art, the specific meanings of the above terms can be understood by combining the drawings and according to specific circumstances.

[0042] Unless otherwise clearly specified and defined, in the present invention, if there are terms such as "arranged", "connected" and "coupled", they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] The above are only the preferred embodiments of the present invention, and do not impose any formal limitations on the present invention. Any simple modifications and equivalent changes made to the above embodiments based on the technical essence of the present invention all fall within the protection scope of the present invention.

Claims

1. A press-fitting device for a housing stator assembly, characterized in that, Comprising: A frame (1); At least one heating component (2), which is arranged inside the frame (1) and is used to heat the casing (4); A pressing-down component (3), which is located below the heating component (2) and is used to press-fit the casing (4). At least one positioning hole (301) through which the heating component (2) can pass is formed on the pressing-down component (3), and a positioning fixture (302) for fixing the casing (4) is arranged at a corresponding position below the positioning hole (301); An anti-offset structure (6), which is arranged on the frame (1) and is used to fix the stator (5) and correct the deviation of the stator (5) during the press-fitting process, so that the center line of the stator (5) is collinear with the center line of the casing (4); The anti-offset structure (6) includes a self-centering structure (601). The self-centering structure (601) includes a base body (6011) and a plurality of claws (6012). A rotating ring (6013) that can rotate relative to the base body (6011) is embedded in the base body (6011). The claw (6012) includes a connecting plate, and two connecting parts are arranged on the connecting plate, and the two connecting parts are respectively rotatably connected to the base body (6011) and the rotating ring (6013). Rotating the rotating ring (6013) can drive the plurality of claws (6012) to approach or move away from each other.

2. The press-fitting device for a housing stator assembly according to claim 1, characterized in that: A rotating groove (6014) is arranged on the outer side of the base body (6011), and a rotating rod (6015) is arranged on the rotating ring (6013). The rotating rod (6015) passes through the rotating groove (6014). A fixing rod (6016) is arranged at one end of the rotating groove (6014) on the base body (6011). Rotating the rotating rod (6015) to approach or move away from the fixing rod (6016) enables the rotating ring (6013) to drive the plurality of claws (6012) to approach or move away from each other; an arc-shaped inclined surface is arranged at the bottom of the positioning fixture (302), and the inclined surface slopes downward from one end away from the rotating rod (6015), and the rotating rod (6015) first contacts the lowest end of the inclined surface and then contacts the highest end of the inclined surface.

3. The press-fitting device for a housing stator assembly according to claim 1, characterized in that: A support plate (6017) is arranged on the top surface of the base body (6011) to support the stator (5).

4. The press-fitting device for a housing stator assembly according to claim 1, characterized in that: The anti-offset structure (6) further includes a plurality of guide posts (602), and the guide posts (602) are all located around the outer circle of the stator (5); a plurality of guide holes (401) are formed on the casing (4), and the guide posts (602) and the guide holes (401) are in one-to-one correspondence to fix the casing (4); the top end of the guide post (602) is a hemispherical or conical rounded transition surface.

5. The press-fitting device for a housing stator assembly according to claim 1, characterized in that: The heating component (2) includes a cylinder (201) and a plurality of cylinder fixing plates (202). A cylinder heat insulation plate (203), a cylinder connecting plate (204), a heating rod connecting rod (205) and a heating rod (206) are sequentially and fixedly connected below the cylinder fixing plate (202); the outer diameter d1 of the heating rod (206) is smaller than the inner diameter d2 of the casing (4).

6. The press-fitting device for a housing stator assembly according to claim 1, characterized in that: An insulation cover (207) is further provided outside the heating component (2) above the pressing component (3).

7. The press-fitting device for a housing stator assembly according to claim 1, characterized in that: The positioning fixture (302) includes at least three housing positioning blocks (3021) evenly distributed along the circumferential direction of the housing (4). The housing positioning blocks (3021) are connected to the bottom surface of the pressing component (3) through sliding grooves, and the housing positioning blocks (3021) can move radially to adapt to housings (4) with different diameters.

8. The press-fitting device for a housing stator assembly according to claim 1, characterized in that: The surface of the claw (6012) is provided with serrated patterns for clamping the stator (5).

9. The press-fitting device for a housing stator assembly according to claim 4, characterized in that: The top end of the guiding column (602) is a tapered fillet transition surface. The tapered fillet transition surface at the top end of the guiding column (602) first contacts the edge of the guiding hole (401) to automatically correct the coaxiality deviation between the guiding column (602) and the guiding hole (401).

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