Design method and installation method of universal device for inserting stator into casing

Abstract

The invention relates to the technical field of stator assembly, in particular to a design method of a universal device for inserting a stator into a casing, which is characterized in that the whole device is set as modular components, and the assembly requirements of stators of different specifications are met by increasing or decreasing the number of the modular components; the modular assembly forms a cylindrical body for accommodating the stator, and the inner wall of the cylindrical body is tangent to the outer side edge of the stator so as to realize the positioning of the stator; the adjacent modular assemblies are detachably connected, the elastic supporting bodies are arranged between the adjacent modular assemblies, radial supporting force is provided for the modular assemblies through the elastic supporting bodies, the elastic supporting bodies are located on the inner sides of the joints of the adjacent modular assemblies, and the rigidity of the overall structure is effectively enhanced. Through the optimized design of the structure, the weight of the tool is reduced by 10%-20%, and the operation convenience is improved.

Description

Technical Field

[0001] This invention relates to the field of stator assembly technology, and more specifically, to a design method for a universal stator housing device and an installation method for the device. Background Technology

[0002] Existing stamping fixtures typically include a base for fixing the housing and a pressure plate for abutting the stamping equipment. Initially, the housing and stator need to be manually fixed before being placed into the fixture for stamping. If the initial fixed stator and housing cannot guarantee a high degree of concentricity, the coaxiality of the stamped stator and housing will also deviate, and the installation quality cannot be effectively guaranteed. Therefore, the axes of the stator and housing should be aligned as much as possible during the initial fixing.

[0003] When the motor stator is inserted into or removed from the housing, it needs to be raised. Because the stator has coils, the tooling size can only be determined within 20% of the stator's outer diameter. Therefore, depending on the size of the motor stator laminations, basically each type of stator lamination requires a separate tooling. Different products require different tooling, resulting in a relatively large demand for tooling.

[0004] A search revealed that patent 201620985060.8 provides a motor housing assembly fixture, relating to the field of motor assembly technology. It includes a base on which a stator fixing seat is mounted. The stator fixing seat is a hollow cylindrical structure, and its upper surface has several screw-hole positioning pins evenly distributed along its circumference. A baffle is vertically mounted at one end of the base, and the height of the baffle is greater than the height of the stator fixing seat. This invention can accurately position and install the motor stator and motor housing, improving the motor's tightness. However, it does not solve the problem of different products requiring different fixtures, resulting in a large demand for fixtures.

[0005] Therefore, it is essential to design a stator housing insertion device that ensures the stability and machining accuracy of the tooling while also taking into account versatility and flexibility. Summary of the Invention

[0006] This invention addresses the shortcomings of existing technologies by providing a design method for a universal stator housing insertion device. This method standardizes traditional stator housing insertion tooling into modular components, allowing for adaptation to different stator assembly requirements by increasing or decreasing the number of modular components. This design achieves the universality and standardization of tooling, completely changing the traditional process where each stator specification requires dedicated tooling, and significantly reducing tooling manufacturing and management costs.

[0007] The original monolithic cylindrical structure is replaced with multiple evenly distributed track-type connecting plates, each with positioning holes for quick assembly via pins. This design is scalable; when supporting smaller stators, the number of connecting plates can be reduced, while for larger stators, only the corresponding number of connecting plates needs to be added, thus improving the versatility and flexibility of the tooling.

[0008] The above-mentioned objectives of the present invention are achieved through the following technical solutions: A design method for a universal stator housing assembly is disclosed, wherein the whole is configured as a modular component, and the assembly requirements of stators of different specifications can be adapted by increasing or decreasing the number of modular components; the modular component forms a cylindrical body to accommodate the stator, and the inner wall of the cylindrical body is tangent to the outer edge of the stator to achieve stator positioning; adjacent modular components are detachably connected, and an elastic support body is set between adjacent modular components to provide radial support force to the modular components. The elastic support body is located on the inner side of the connection between adjacent modular components, effectively enhancing the rigidity of the overall structure.

[0009] The stator housing mounting device of this invention, through a combination of detachable connecting pieces and hinges, can adapt to the assembly requirements of stators of different specifications by increasing or decreasing the number of connecting pieces. This design achieves the standardization and serialization of tooling, completely changing the situation in traditional processes where each specification of stator requires dedicated tooling, and significantly reducing tooling manufacturing and management costs.

[0010] An elastic support component is welded to the middle of the connecting piece. When multiple connecting pieces are combined into a ring structure, the spring plate can provide radial support force, effectively enhancing the rigidity of the overall structure and preventing the connecting piece from deforming or displacing under force, thus ensuring the stability of the tooling and the machining accuracy.

[0011] Furthermore, the modular component comprises evenly distributed track-type connecting pieces, which are assembled through a detachable structure. Preferably, the connecting pieces have a track-type structure, with each connecting piece being a rectangular piece with a consistent structure; the connecting pieces are arranged centrally symmetrically. This design ensures uniform and stable stress distribution throughout the device, and the consistent structure of all connecting pieces facilitates molding and provides high efficiency for installation and disassembly.

[0012] The present invention also discloses an installation method for the above-mentioned general-purpose stator housing device, comprising the following steps: connecting the two sides of the modular components by hinges, and forming a modular cylinder by several modular components; fixing an elastic support body on the inner side of the connection between adjacent modular components, wherein the elastic support body forms an arched structure and is circumferentially connected to the adjacent modular component.

[0013] This installation method effectively integrates modular components and elastic supports into a single unit, resulting in a high degree of compatibility. The entire device can form a near-cylindrical structure, which is beneficial for supporting the stator and allows the outer wall of the stator to fit against the inner wall of the device, thus providing better support.

[0014] Furthermore, both the modular components and the elastic support are made of metal. The modular components are rectangular connecting pieces, and the elastic support is a spring plate. Two adjacent track-type connecting pieces, spring plates, and hinges form a unit group. In this unit group, the spring plate is welded to only one track-type connecting piece, while the other track-type connecting piece abuts against the spring plate. This design not only effectively connects and fixes the position of the elastic support at the track-type connecting pieces but also fully utilizes the elasticity of the spring plate. This allows the spring plate to fully play its role in connecting two adjacent track-type connecting pieces and providing radial support force, effectively enhancing the rigidity of the overall structure, preventing deformation or displacement of the connecting pieces under stress, and ensuring the stability and machining accuracy of the tooling.

[0015] Furthermore, the spring sheet includes a fixed section and a deformable section, the deformable section including a gap section and a constraint section; the fixed section is fixed to a track-type connecting piece, the constraint section abuts against an adjacent track-type connecting piece; the gap section is a transition section connecting the fixed section and the constraint section, with a gap between it and the track-type connecting piece. In this spring sheet design, the fixed section and the constraint section serve to connect and abut against two adjacent track-type connecting pieces, while the gap section, through deformation, provides space for the track-type connecting piece to adjust its position at a small angle, making it easier to insert the stator into the stator housing device when installing the stator.

[0016] Furthermore, the spring sheet is welded to the side near the connection point, with a gap between it and the side wall of the connecting piece. This design allows sufficient length for the spring sheet's elasticity, ensuring good support when supporting the tracked connecting piece, and making it easy for the spring sheet to return to its original shape when the tracked connecting piece is disassembled.

[0017] Furthermore, the welded section between the spring plate and the track-type connecting plate accounts for 1 / 10 to 1 / 6 of the total area of ​​the spring plate; the gap between two adjacent spring plates is less than the length of the spring plate covering the track-type connecting plate. This structural design not only effectively supports the track-type connecting plate but also strengthens the stability of the entire device. The gap between adjacent spring plates prevents interference during installation and saves materials.

[0018] Furthermore, after installation, the spring sheet has a V-shaped structure, and its included angle is greater than the included angle of the inner wall surface of the adjacent track-type connecting plate.

[0019] Furthermore, one end of the track-type connecting plate is a straight section forming an end plate one, and the other end is a folded section forming an end plate two with recessed ends and a protruding middle; an adjustable positioning piece is installed in the recess of the end plate two.

[0020] Furthermore, the adjustable positioning plate includes a plate body and an adjustment mounting hole provided on the plate body, and a fixing bolt is installed in the adjustment mounting hole; the length of the adjustable positioning plate is less than the straight-line distance between the recessed positioning holes of two adjacent end plates, and the device's resistance to deformation is enhanced by adjusting the relative distance of the fixing bolts of the adjustable positioning plate.

[0021] Compared with the prior art, the present invention has the following advantages: The present invention discloses a design method for a universal stator housing insertion device. The stator housing insertion device set by the method standardizes the traditional stator housing insertion tooling into modular components. By increasing or decreasing the number of modular components, it can adapt to the stator assembly requirements of different specifications.

[0022] The stator housing insertion device produced by this design achieves a universal tooling design, and a single tooling set can meet the processing needs of a series of stator laminations; through structural optimization design, the weight of the tooling is reduced by 10% to 20%, improving the ease of operation.

[0023] The installation method of the universal stator housing device disclosed in this invention fully considers the convenience of installation, gives full play to the advantages of the modular structure of the whole, effectively solves the problem of repeated tooling investment caused by product specification changes in traditional processes, and significantly reduces production costs and preparation cycle. Attached Figure Description

[0024] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the stator housing device described in Embodiment 1.

[0025] Figure 2 This is a schematic diagram of the structure of the elastic support body of the stator housing device described in Embodiment 1.

[0026] Figure 3 This is a schematic diagram showing the modular components of the stator housing device described in Embodiment 1.

[0027] Figure 4 This is a schematic diagram of the modular components of the stator housing device described in Embodiment 1 in use.

[0028] Figure 5This is a schematic diagram of the overall structure of the stator housing device described in Embodiment 2.

[0029] Figure 6 This is a schematic diagram of the bottom structure of the stator housing device described in Embodiment 2.

[0030] Among them, 1-track-type connecting piece, 2-hinged component, 3-elastic support assembly, 4-adjustable positioning piece, 11-end plate one, 12-end plate two, 13-mounting hole, 21-positioning section, 22-positioning pin, 31-fixed section, 32-deformation section, 41-piece body, 42-adjusting mounting hole, 43-fixing bolt, 321-gap section, 322-constraint section, 323-constraint point. Detailed Implementation

[0031] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims. Example 1

[0032] like Figures 1-4 As shown, the design method of the universal stator housing device in this embodiment sets the whole as a modular component. The number of modular components can be increased or decreased to adapt to the stator assembly requirements of different specifications. The modular component forms a cylindrical body to accommodate the stator. The inner wall of the cylindrical body is tangent to the outer edge of the stator to achieve the positioning of the stator. Adjacent modular components are detachably connected. An elastic support body is set between adjacent modular components to provide radial support force to the modular components. The elastic support body is located on the inner side of the connection between adjacent modular components, which effectively enhances the rigidity of the overall structure.

[0033] like Figure 1 The modular components are evenly distributed tracked connecting pieces, which are assembled through a detachable structure. Multiple tracked connecting pieces 1 form a hollow, near-cylindrical structure. Adjacent tracked connecting pieces 1 are fitted with hinges 2 for rapid assembly. The number of tracked connecting pieces 1 is selected according to the size of the stator, and the number can be adjusted to accommodate different stator specifications. An elastic support component 3 is provided on the inner wall of the connection point between adjacent tracked connecting pieces 1 to provide radial support force, effectively enhancing the rigidity of the overall structure.

[0034] In this embodiment, the tracked connecting piece 1 is a rectangular piece, and the tracked connecting piece 1 has a tracked structure. Each tracked connecting piece 1 is a rectangular piece with the same structure; the tracked connecting pieces 1 are arranged symmetrically at the center. This tracked connecting piece 1 consists of eight pieces with their two sides connected to form a ring.

[0035] During installation, the two sides of the modular components are connected by hinges 2, and several modular components are arranged to form an assembled cylindrical body. An elastic support is fixed to the inner side of the connection between adjacent modular components. This elastic support forms an arched structure that transitions circumferentially from one modular component to the adjacent modular component. More specifically, the track-type connecting piece 1 is integrally formed or welded to the hinge 2. The hinge 2 is a segmented cylinder with intervals longer than the length of a single positioning hole 21. Adjacent hinges 2 form a concentric "I"-shaped structure with interlocking concave and convex fittings. The positioning holes 21 are connected as a single unit by positioning pins 22.

[0036] Both the modular component and the elastic support 3 are made of metal. The modular component is a rectangular connecting piece, and the elastic support is a spring plate. Two adjacent track-type connecting pieces, spring plates, and hinges form a unit group. In the unit group, the spring plate is welded to only one track-type connecting piece, and the other track-type connecting piece is in contact with the spring plate.

[0037] In this embodiment, after installation, the spring sheet forms a V-shaped structure with an included angle greater than the included angle of the inner wall surfaces of the adjacent track-type connecting plates. In this example, the included angle of the V-shaped structure is 165°.

[0038] The spring plate includes a fixed section 31 and a deformable section 32. The deformable section 32 includes a gap section 321 and a constraint section 322. In each unit, the fixed section 31 is welded and fixed to a tracked connecting plate, and the constraint section 322 abuts against another adjacent tracked connecting plate. The gap section 321 is a transition section that connects the fixed section 31 and the constraint section 322 and has a gap with the tracked connecting plate.

[0039] Taking two adjacent connecting pieces A and B as an example, one end of the spring sheet is welded to the connecting piece A, and the other end overlaps with the connecting piece B, so that the entire spring sheet is curved to form the inner skeleton supporting the connecting pieces A and B. After assembly, the sheet-like body is an arc-shaped structure that bulges outward from the center to connect the two adjacent connecting pieces; the spring sheet, together with the hinge 2, makes the whole form a near circle.

[0040] In this spring plate design, the fixed section 31 and the constraint section 322 serve to connect and abut against two adjacent tracked connecting plates. The gap section 321 is crucial for ensuring the spring plate's deformation. If the entire spring plate were completely welded to the connecting plate, it would be difficult to deform and prone to breakage during installation, failing to provide outward support to adjacent connecting plates. Furthermore, the gap section provides space for small-angle adjustments to the tracked connecting plates, and the entire constraint section forms a near-circular shape during use. After installation, the constraint point 323 is the point of contact between the constraint section and the connecting plate. The entire elastic support assembly fully utilizes the characteristics of elastic deformation, providing radial support force to the modular components through the elastic support body, effectively enhancing the overall structural rigidity. When installing the stator, it is easier to insert the stator into the stator housing assembly.

[0041] Preferably, the welding area between the spring sheet and the track-type connecting piece 2 accounts for 1 / 10 to 1 / 6 of the total area of ​​the spring sheet; in this embodiment, the welding area accounts for 1 / 6 of the total area of ​​the spring sheet. The gap length between two adjacent spring sheets is less than the length of the track-type connecting piece covered by the spring sheet. This structural design not only effectively supports the track-type connecting piece but also strengthens the stability of the entire device. Furthermore, the gap between adjacent spring sheets prevents interference during installation and saves materials.

[0042] In this embodiment, an elastic support component (such as a spring sheet) is welded to the middle of the track-type connecting piece 1. When multiple connecting pieces are combined into a ring structure, the spring sheet can provide radial support force, effectively enhancing the rigidity of the overall structure, preventing the connecting piece from deforming or displacing under force, and ensuring the stability and machining accuracy of the tooling. Example 2

[0043] like Figure 2 and Figure 3 As shown, the design method of the general stator housing device in this embodiment is similar to that in embodiment 1. The difference is that one end of the track-type connecting piece 1 is a straight section forming an end plate 11, and the other end is a folded section forming an end plate 12 with recesses at both ends and a protrusion in the middle. An adjustable positioning piece 4 is installed in the recess of the end plate 12. In order to ensure stable use, the thickness of the adjustable positioning piece 4 is less than or equal to the depth of the recess, that is, the adjustable positioning piece 4 does not protrude from the bottom surface enclosed by the end plate 12.

[0044] The adjustable positioning plate 4 includes a plate body 41 and an adjustment mounting hole 42 disposed on the plate body 41. A fixing bolt 43 is installed in the adjustment mounting hole 42. The length of the adjustable positioning plate 4 is less than the length of the recesses of the two adjacent end plates 12. In this embodiment, the adjustment mounting hole 42 is an oblong hole with a hollowed-out center of the plate body 41. The oblong hole forms an adjustment slide 43 for the fixing bolt. By adjusting the relative position of the fixing bolts 43 on both sides, multi-angle free positioning can be achieved. The fixing bolts 43 in this solution need to be fixed at the ends of two adjacent track-type connecting plates 1. Therefore, mounting holes 13 need to be provided at the ends of the track-type connecting plates 1.

[0045] In this embodiment, to improve the overall stability of the device, an adjustable positioning plate is added to the top of the connecting plate. The adjustment mounting hole 42 in the middle of the positioning plate is a long strip-shaped adjustment groove, which can realize free positioning at multiple angles. The two ends of the positioning plate are fixedly connected to the adjacent connecting plates by fasteners to form a stable triangular support structure, which effectively enhances the device's resistance to deformation.

[0046] As an alternative, both the elastic support component 3 and the adjustable positioning piece 4 can be set up simultaneously to effectively enhance the device's resistance to deformation.

[0047] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims

1. A design method for a universal stator housing insertion device, characterized in that, The entire structure is configured as a modular component, and the number of modular components can be increased or decreased to accommodate the stator assembly requirements of different specifications. The modular component forms a cylindrical body to accommodate the stator, and the inner wall of the cylindrical body is tangent to the outer edge of the stator to achieve the positioning of the stator. Adjacent modular components are detachably connected, and an elastic support body is set between adjacent modular components to provide radial support force to the modular components. The elastic support body is located on the inner side of the connection between adjacent modular components, which effectively enhances the rigidity of the overall structure.

2. The design method of the universal stator housing insertion device according to claim 1, characterized in that, The modular components are evenly distributed track-type connecting pieces, which are assembled through a detachable structure.

3. A method for installing a universal stator housing assembly, characterized in that, Includes the following steps: The two sides of the modular components are connected by hinges, and several modular components are arranged to form an assembled cylindrical body; an elastic support is fixed on the inner side of the connection between adjacent modular components, and the elastic support forms an arched structure that is circumferentially connected from one modular component to the adjacent modular component.

4. The installation method of the universal stator housing device according to claim 3, characterized in that, Both the modular components and the elastic support are made of metal. The modular components are rectangular connecting pieces, and the elastic support is a spring plate. Two adjacent track-type connecting pieces, spring plates, and hinges form a unit group. In the unit group, the spring plate is welded to only one track-type connecting piece, and the other track-type connecting piece is in abutting connection with the spring plate.

5. The installation method of the universal stator housing device according to claim 4, characterized in that, The spring sheet includes a fixed section and a deformable section, the deformable section including a gap section and a constraint section; in each single set, the fixed section is fixed to a tracked connecting piece, and the constraint section abuts against another adjacent tracked connecting piece; the gap section is a transition section that connects the fixed section and the constraint section and has a gap with the tracked connecting piece.

6. The installation method of the universal stator housing device according to claim 5, characterized in that, The spring sheet is welded to the side near the connection point, with a gap between it and the side wall of the spring sheet.

7. The installation method of the universal stator housing device according to claim 6, characterized in that, The area of ​​the welded section between the spring plate and the track-type connecting plate accounts for 1 / 10 to 1 / 6 of the total area of ​​the spring plate; the gap length between two adjacent spring plates is less than the length of the spring plate covering the track-type connecting plate.

8. The installation method of the universal stator housing device according to claim 7, characterized in that, After installation, the spring plate has a V-shaped structure, and its included angle is greater than the included angle of the inner wall surface of the adjacent track-type connecting plate.

9. The installation method of the universal stator housing device according to claim 8, characterized in that, One end of the track-type connecting plate is a straight section forming an end plate one, and the other end is a folded section forming an end plate two with recessed ends and a protruding middle; an adjustable positioning piece is installed in the recess of the end plate two.

10. The installation method of the universal stator housing device according to claim 9, characterized in that, The adjustable positioning plate includes a plate body and an adjustment mounting hole provided on the plate body. A fixing bolt is installed in the adjustment mounting hole. The length of the adjustable positioning plate is less than the length of the recess of the two adjacent end plates. The device's resistance to deformation is enhanced by adjusting the relative distance of the fixing bolts of the adjustable positioning plate.

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