Segmented stator core circle assembling device and circle welding equipment

Abstract

The application provides a split stator core assembling device and a circle assembling welding equipment, wherein the split stator core assembling device comprises: two oppositely arranged first assembling action mechanisms; a first assembling action fixed frame is used for fixing a stator core unit, a first hinge shaft is arranged on the first assembling action fixed frame, a first assembling action movable frame is connected with the first hinge shaft and is used for fixing a stator core unit, and a first assembling action driving member is used for driving two stator core units to form a first stator core group; two oppositely arranged second assembling action mechanisms; and a second assembling action driving member is used for driving two first stator core groups to form a second stator core group. By adopting the above technical scheme, the two-stage hinged rotating assembling structure is adopted, the overall assembly consistency and the structural stability of the stator core are improved, the automatic continuous operation is facilitated, and the assembling efficiency and the finished product quality of the split stator core are improved.

Description

Technical Field

[0001] This invention relates to the technical field of circular welding equipment, and more specifically, to a device for assembling segmented stator cores into circular shapes and a circular welding equipment. Background Technology

[0002] As a core component in new energy equipment, industrial drives, and home appliances, the manufacturing precision and assembly efficiency of the stator assembly of an electric motor directly determine its performance, noise level, and operational stability. To improve the convenience of winding and slot fill factor, and to meet the needs of large-size stator processing and transportation, modular stator cores have become the mainstream structure in the industry. This structure consists of multiple sector-shaped stator core units that are assembled in stages and welded together to form a complete stator core assembly.

[0003] Existing processes for assembling and grouping segmented stator cores often employ radial jacking fixtures, manual clamping, or synchronous drive assembling by multiple power units. These methods have significant drawbacks in actual production: First, the assembly motion is mostly linear jacking, making it difficult to match the arc motion trajectory of the sector-shaped units. This easily leads to misalignment of the splicing surfaces, uneven gaps, and deviations in roundness and coaxiality, increasing motor cogging torque and operating noise. Second, synchronous assembly by multiple units requires a large number of drive and execution components, resulting in complex equipment structures, difficult debugging, and high costs. Furthermore, synchronous control errors are prone to accumulation, leading to poor consistency in batch production. Third, the assembly process is often a one-time assembly, lacking a graded, hinged, progressive assembly mechanism. This prevents step-by-step positioning and assembly of unit groups, causing core units to easily shift and scatter during assembly. This not only affects assembly efficiency but also increases the burden of pre-welding shaping processes, hindering the improvement of automated production line cycle time. Summary of the Invention

[0004] The purpose of this invention is to provide a segmented stator core assembly device and a welding equipment for assembling the cores, so as to solve the technical problem that existing assembly devices and welding equipment are unable to simultaneously achieve the accuracy of the assembly trajectory, the simplicity of the mechanism and the stability of the assembly, and cannot meet the high-precision, high-efficiency and high-consistency assembly welding of stator cores for high-end motors.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: Firstly, a device for assembling segmented stator cores into a circular shape is provided, comprising: Two opposing first circular motion mechanisms are provided. Each first circular motion mechanism includes a first circular motion support frame, a first circular motion fixed frame and a first circular motion movable frame mounted on the first circular motion support frame, and a first circular motion driving member that is pulsatorically connected to the first circular motion movable frame. The first circular motion fixed frame is fixedly mounted on the first circular motion support frame and is used to fix a stator core unit. The first circular motion fixed frame is provided with a first hinge shaft. The first circular motion movable frame is connected to the first hinge shaft and is used to fix a stator core unit. The first circular motion driving member is used to drive the first circular motion movable frame to rotate around the first hinge shaft, so that the two stator core units form a first stator core group. Two opposing second circular motion mechanisms are provided. Each second circular motion mechanism includes a second circular motion support frame, a second circular motion movable frame mounted on the second circular motion support frame, and a second circular motion drive member that is pulsatorically connected to the second circular motion movable frame. The second circular motion support frame is provided with a second hinge shaft. The second circular motion movable frame is used to fix the first circular motion support frame. The second circular motion drive member is used to drive the second circular motion movable frame to rotate around the second hinge shaft, so that the two first stator core groups form a second stator core group.

[0006] By adopting the above technical solution, a two-stage hinged rotating assembly structure is used. First, the flat-placed stator core units are rotated to form a first stator core group arranged at preset angular intervals. Then, the two first stator core groups are assembled relative to each other to form a second stator core group. The assembly trajectory conforms to the arc contour of the fan-shaped core, effectively ensuring uniform splicing gaps and precise angles, improving the assembly accuracy and roundness. At the same time, the assembly of the whole circle is completed by using multiple second stator core groups to change angles and insert them sequentially. This reduces the control difficulty and mechanism complexity of one-time overall assembly, ensures accurate positioning of each splicing part, reduces misalignment and deformation during the assembly process, improves the overall assembly consistency and structural stability of the stator core, facilitates automated continuous operation, and improves the assembly efficiency and finished product quality of segmented stator cores.

[0007] In one embodiment, the first circular motion fixing frame includes a first circular motion fixing frame body and a first circular motion fixing seat body disposed on the first circular motion fixing frame body. The first circular motion fixing frame body is fixedly disposed on the first circular motion support frame and is provided with the first hinge shaft. The first circular motion fixing seat body is used to fix a stator core unit. The first circular motion movable frame includes a first circular motion movable frame body and a second circular motion fixing seat body disposed on the first circular motion movable frame body. The first circular motion movable frame body is connected to the first hinge shaft. The second circular motion fixing seat body is used to fix a stator core unit. The straight line where the hinge point of the first hinge shaft is located is located between the first circular motion fixing seat body and the second circular motion fixing seat body.

[0008] In one embodiment, the first circular fixing base includes a first circular fixing part, a second circular fixing part, and a fixing drive member. The first circular fixing part is fixedly connected to the first circular motion fixing frame. The second circular fixing part is telescopically disposed on the first circular fixing part, and a fixing groove for fixing the stator core unit is formed between the two. The fixing drive member is used to drive the second circular fixing part to move in a direction close to or away from the first circular fixing part to clamp or release the stator core unit.

[0009] In one embodiment, the hinge point of the first hinge axis is determined in the following manner: Select at least two positions of the stator core unit before and after the first assembly operation, and connect the corresponding points to form line segments. Take the perpendicular bisector of each line segment, and the intersection of the perpendicular bisectors is the first hinge point of the first hinge axis.

[0010] In one embodiment, the hinge point of the second hinge axis is determined in the following manner: Select at least two positions of the stator core unit before and after the second assembly operation, and connect the corresponding points to form line segments. Take the perpendicular bisector of each line segment, and the intersection of the perpendicular bisectors is the second hinge point of the second hinge axis.

[0011] In one embodiment, the second hinge point is located inside the circle where the second stator core assembly is located after the second assembly operation.

[0012] In one embodiment, a bridging line is connected between the two first stator core groups, and the maximum distance corresponding to the second hinge point is less than or equal to half of the bridging line.

[0013] In one embodiment, the segmented stator core assembly device further includes a wire straightening mechanism. The wire straightening mechanism includes a wire straightening frame, two wire straightening fixing structures spaced apart on the wire straightening frame, a wire straightening movable structure spaced apart from the wire straightening fixing structures, and a wire straightening drive. The two wire straightening fixing structures are respectively used to abut the ends of the bridge wires between the two stator cores, the wire straightening movable structure is used to abut the middle of the bridge wires, and the wire straightening drive is used to drive the wire straightening movable structure to move along a direction close to the two wire straightening fixing structures, so that the bridge wires are straightened.

[0014] Secondly, a circular welding device is provided, comprising a main body of the circular welding device and the aforementioned segmented stator core assembly device, wherein the segmented stator core assembly device is disposed on the main body of the circular welding device.

[0015] By adopting the above technical solutions, the stator core pre-assembly welding equipment is equipped with a precise and efficient stator core pre-assembly function, which improves the core assembly accuracy and welding quality, simplifies the overall assembly process, and increases production efficiency.

[0016] In one embodiment, the main body of the circular welding equipment includes at least one of a demolding mechanism, a conveying mechanism, a wire end sorting mechanism, a circle locking mechanism, a flattening mechanism, and a welding mechanism; The demolding mechanism is used to remove the mold of the stator core unit; The conveying mechanism is used to convey the stator core unit, the first stator core assembly, and the second stator core assembly; The wire end sorting mechanism is used to sort the wire ends of the stator core unit, the first stator core group, and the second stator core group; The locking mechanism is used to lock the second stator core assembly in a circular shape. The flattening mechanism is used to flatten the bridge wire of the second stator core assembly; The welding mechanism is used to weld the second stator core assembly. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the segmented stator core assembly device provided in an embodiment of the present invention.

[0019] Figure 2This is a three-dimensional structural diagram of the first and second circular motion mechanisms provided in the embodiments of the present invention.

[0020] Figure 3 This is a three-dimensional structural diagram of the first circular motion mechanism provided in an embodiment of the present invention.

[0021] Figure 4 This is a top view of the first circular motion mechanism provided in an embodiment of the present invention.

[0022] Figure 5 This is a top view of the stator core unit.

[0023] Figure 6 This is a top view of the first stator core assembly.

[0024] Figure 7 This is a three-dimensional structural diagram of the second circular motion mechanism provided in an embodiment of the present invention.

[0025] Figure 8 This is a top view of the second circular motion mechanism provided in an embodiment of the present invention.

[0026] Figure 9 This is a top view of the two sets of first stator core assemblies.

[0027] Figure 10 This is a top view of the second stator core assembly.

[0028] Figure 11 This is a top view of the segmented stator core assembly device provided in an embodiment of the present invention.

[0029] Figure 12 This is a three-dimensional structural diagram of the first circular motion mechanism provided in an embodiment of the present invention from another perspective.

[0030] Figure 13 This is a three-dimensional structural diagram of the straightening mechanism provided in an embodiment of the present invention.

[0031] Figure 14 yes Figure 13 Enlarged view of section "A" in the image.

[0032] Figure 15 This is a top view of the second stator core assembly after the bridge wires have been straightened.

[0033] Figure 16 This is a top view of the circular welding equipment provided in an embodiment of the present invention.

[0034] The labels for the attached figures are as follows: 10. Segmented stator core assembly device; 1. First assembly mechanism; 11. First assembly support frame; 12. First assembly fixed frame; 13. First assembly movable frame; 14. First assembly drive; 101. Stator core unit; 15. First hinge shaft; 102. First stator core assembly; 2. Second assembly mechanism; 21. Second assembly support frame; 22. Second assembly movable frame; 23. Second assembly drive; 24. Second hinge shaft; 103. Second stator core assembly; 121. First assembly fixed frame; 122. First assembly fixed seat; 131. First assembly movable frame; 132. Second assembly... Action fixing base; 1221, first round fixing part; 1222, second round fixing part; 1223, fixing drive component; 16, first round action drive fixing frame; 141, third hinge shaft; 142, fourth hinge shaft; 25, second round action drive fixing frame; 231, fifth hinge shaft; 232, sixth hinge shaft; A1, first hinge point; A2, second hinge point; 104, bridge wire; 3, cable management mechanism; 31, cable management frame; 32, cable management fixing structure; 33, cable management movable structure; 34, cable management drive component; 20, demolding mechanism; 30, handling mechanism; 40, wire end sorting mechanism; 50, locking mechanism; 60, flattening mechanism; 70, welding mechanism. Detailed Implementation

[0035] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0036] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be located directly on or indirectly on the other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to the other component.

[0037] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate that the device or element must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or the number of technical features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. The specific implementation of this invention will be described in more detail below with reference to specific embodiments: like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a segmented stator core assembly device 10, comprising: Please refer to the following: Figure 3 and Figure 4 Two opposing first circular motion mechanisms 1, each comprising a first circular motion support frame 11, a first circular motion fixed frame 12 and a first circular motion movable frame 13 mounted on the first circular motion support frame 11, and a first circular motion driving member 14 connected to the first circular motion movable frame 13; the first circular motion fixed frame 12 is fixedly mounted on the first circular motion support frame 11 and is used to fix a stator core unit 101; the first circular motion fixed frame 12 is provided with a first hinge shaft 15; the first circular motion movable frame 13 is connected to the first hinge shaft 15 and is used to fix a stator core unit 101; the first circular motion driving member 14 is used to drive the first circular motion movable frame 13 to rotate around the first hinge shaft 15, such as... Figure 5 and Figure 6 As shown, the two stator core units 101 form the first stator core group 102; Please refer to the following: Figure 7 and Figure 8 Two opposing second circular motion mechanisms 2, each including a second circular motion support frame 21, a second circular motion movable frame 22 mounted on the support frame 21, and a second circular motion drive member 23 connected to the movable frame 22. The support frame 21 has a second hinge shaft 24. The movable frame 22 is used to fix the first circular motion support frame 11, and the drive member 23 is used to drive the movable frame 22 to rotate around the second hinge shaft 24. Figure 9 and Figure 10 As shown, the two first stator core groups 102 are used to form the second stator core group 103.

[0039] The structure of this device specifically includes two opposing first circular motion mechanisms 1 and two opposing second circular motion mechanisms 2. The first circular motion mechanism 1 includes a first circular motion support frame 11, a first circular motion fixing frame 12, a first circular motion movable frame 13, and a first circular motion drive component 14. The first circular motion fixing frame 12 is fixedly mounted on the first circular motion support frame 11 and is used to fix a stator core unit 101. A first hinge shaft 15 is provided on the first circular motion fixing frame 12. The first circular motion movable frame 13 and the first... The hinge shaft 15 is connected to and used to fix another stator core unit 101. The first circular motion drive 14 is connected to the first circular motion movable frame 13. The second circular motion mechanism 2 includes a second circular motion support frame 21, a second circular motion movable frame 22, and a second circular motion drive 23. The second circular motion support frame 21 is provided with a second hinge shaft 24. The second circular motion movable frame 22 is connected to the second hinge shaft 24 and used to fix the first circular motion support frame 11. The second circular motion drive 23 is connected to the second circular motion movable frame 22.

[0040] Please refer to the following: Figure 9 , Figure 10 and Figure 11 Its working principle is as follows: In the initial state, the four stator core units 101 are placed flat. The first rounding action drive 14 can drive the first rounding action movable frame 13 to rotate around the first hinge axis 15, so that two stator core units 101 fixed on the first rounding action fixed frame 12 and the first rounding action movable frame 13 respectively complete the rounding action, so that one stator core unit 101 is arranged at a preset angle relative to the other stator core unit 101, and the two stator core units 101 are spaced apart from each other with a preset gap. This gap is used to accommodate the subsequent welding process and avoid the core deformation caused by excessive tightness. Or, during welding, the weld seam cannot be filled, thus forming a first stator core group 102 composed of two stator core units 101 set at a preset angle interval. Initially, the two first stator core groups 102 are also placed in a flat position. The second rounding action drive 23 can drive the second rounding action movable frame 22 to rotate around the second hinge axis 24, so that the two flat first stator core groups 102 are arranged in a relative position after being rounded, and then enclosed to form a second stator core group 103. Subsequently, the three groups of the second stator core groups 103 can be inserted and assembled in sequence at different angles, and finally enclosed to form a complete stator core.

[0041] By adopting the above technical solution and employing a two-stage hinged rotational assembly structure, the flat-placed stator core unit 101 is first rotated to form a first stator core group 102 arranged at preset angular intervals. Then, the two first stator core groups 102 are assembled relative to each other to form a second stator core group 103. The assembly motion trajectory conforms to the arc contour of the fan-shaped core, effectively ensuring uniform splicing gaps and precise angles, improving the assembly accuracy and roundness. At the same time, the assembly of the whole circle is completed by using multiple second stator core groups 103 to be inserted sequentially with changing angles. This reduces the control difficulty and mechanism complexity of one-time overall assembly, ensures accurate positioning of each splicing part, reduces misalignment and deformation during the assembly process, improves the overall assembly consistency and structural stability of the stator core, facilitates automated continuous operation, and improves the assembly efficiency and finished product quality of the segmented stator core.

[0042] like Figure 4 and Figure 12 As shown, in one embodiment, the first circular motion fixing frame 12 includes a first circular motion fixing frame body 121 and a first circular motion fixing seat 122 disposed on the first circular motion fixing frame body 121. The first circular motion fixing frame body 121 is fixedly disposed on the first circular motion support frame 11 and is provided with a first hinge shaft 15. The first circular motion fixing seat 122 is used to fix a stator core unit 101. The first circular motion movable frame 13 includes a first circular motion movable frame body 131 and a second circular motion fixing seat 132 disposed on the first circular motion movable frame body 131. The first circular motion movable frame body 131 is connected to the first hinge shaft 15. The second circular motion fixing seat 132 is used to fix a stator core unit 101. The straight line where the hinge point of the first hinge shaft 15 is located is between the first circular motion fixing seat 122 and the second circular motion fixing seat 132.

[0043] The structure of this device specifically includes a first circular motion fixing frame 12 and a first circular motion movable frame 13. The first circular motion fixing frame 12 includes a first circular motion fixing frame body 121 and a first circular motion fixing seat 122 disposed on the first circular motion fixing frame body 121. The first circular motion fixing frame body 121 is fixedly disposed on the first circular motion support frame 11 and is provided with a first hinge shaft 15. The first circular motion fixing seat 122 is used to fix one of the stator core units 101. The first circular motion movable frame 13 includes a first circular motion movable frame body 131 and a second circular motion fixing seat 132 disposed on the first circular motion movable frame body 131. The first circular motion movable frame body 131 is rotatably connected to the first hinge shaft 15. The second circular motion fixing seat 132 is used to fix another stator core unit 101, and the straight line where the hinge point of the first hinge shaft 15 is located is between the first circular motion fixing seat 122 and the second circular motion fixing seat 132.

[0044] Its working principle is that the first circular motion movable frame 131 can rotate around the first hinge axis 15, thereby driving the stator core unit 101 on the second circular motion fixed seat 132 to complete the rotational circular motion relative to the stator core unit 101 on the first circular motion fixed seat 122. By arranging the straight line where the hinge point of the first hinge axis 15 is located between the two fixed seats, the two stator core units 101 can move along a preset arc trajectory during rotation and form a reasonable interval and gap.

[0045] By adopting the above technical solution, the rotation trajectory of the two stator core units 101 can be precisely controlled, ensuring that the two avoid each other and are accurately positioned during the movement, effectively avoiding motion interference. At the same time, the rotation angle and gap of the stator core units 101 are more uniform and controllable, improving the assembly accuracy and stability of the segmented stator core.

[0046] In one embodiment, the first circular motion fixing base 122 includes a first circular fixing part 1221, a second circular fixing part 1222, and a fixing drive member 1223. The first circular fixing part 1221 is fixedly connected to the first circular motion fixing frame 121. The second circular fixing part 1222 is telescopically disposed on the first circular fixing part 1221, and a fixing groove for fixing the stator core unit 101 is formed between the two. The fixing drive member 1223 is used to drive the second circular fixing part 1222 to move along the direction close to or away from the first circular fixing part 1221 to clamp or release the stator core unit 101.

[0047] The structure specifically includes a first circular motion fixing base 122, which includes a first circular fixing part 1221, a second circular fixing part 1222, and a fixing drive member 1223. The first circular fixing part 1221 is fixedly connected to the first circular motion fixing frame 121. The second circular fixing part 1222 is telescopically mounted on the first circular fixing part 1221. A fixing groove for fixing the stator core unit 101 is formed between the first circular fixing part 1221 and the second circular fixing part 1222. The fixing drive member 1223 is used to drive the second circular fixing part 1222 to move in a direction close to or away from the first circular fixing part 1221.

[0048] Its working principle is as follows: when fixing the stator core unit 101, the stator core unit 101 is placed in the fixing groove between the first round fixing part 1221 and the second round fixing part 1222. The fixing drive 1223 drives the second round fixing part 1222 to move towards the first round fixing part 1221. The two work together to clamp and position the stator core unit 101. When disassembling, the fixing drive 1223 drives the second round fixing part 1222 to move away from the first round fixing part 1221, thereby releasing the clamping constraint on the stator core unit 101.

[0049] By adopting the above technical solution, the second rounding fixing part 1222 can be driven by the fixed driving part 1223 to realize the automatic clamping and loosening of the stator core unit 101, which can adapt to the clamping requirements of stator core units 101 of different sizes and specifications. The clamping is firm and reliable and the operation is convenient. It can effectively prevent the stator core unit 101 from shifting or loosening during the rounding movement, and ensure the positioning accuracy and running stability of the rounding operation.

[0050] In one embodiment, the first circular motion mechanism 1 further includes a first circular motion drive fixing frame 16 protruding from the end of the first circular motion support frame 11 away from the first circular motion fixing frame 12. The two ends of the first circular motion drive member 14 are respectively provided with a third hinge shaft 141 and a fourth hinge shaft 142. The third hinge shaft 141, the fourth hinge shaft 142 and the first hinge shaft 15 are arranged in parallel and spaced apart, and are all located on the same side of the first circular motion support frame 11. The third hinge shaft 141 is connected to the first circular motion drive fixing frame 16, and the fourth hinge shaft 142 is connected to the first circular motion movable frame 13.

[0051] The structure of this device specifically comprises a first circular motion mechanism 1, which further includes a first circular motion drive fixing frame 16 protruding from the first circular motion support frame 11 away from the first circular motion fixing frame 12. The two ends of the first circular motion drive member 14 are respectively provided with a third hinge shaft 141 and a fourth hinge shaft 142. The third hinge shaft 141, the fourth hinge shaft 142 and the first hinge shaft 15 are parallel to each other and spaced apart, and all three are located on the same side of the first circular motion support frame 11. The third hinge shaft 141 is connected to the first circular motion drive fixing frame 16, and the fourth hinge shaft 142 is connected to the first circular motion movable frame 13.

[0052] Its working principle is that when the first rounding action drive component 14 is in telescopic motion, it can adaptively rotate relative to the first rounding action drive fixed frame 16 and the first rounding action movable frame 13 through the third hinge shaft 141 and the fourth hinge shaft 142 at both ends, respectively, thereby smoothly pushing the first rounding action movable frame 13 to rotate around the first hinge shaft 15 and complete the rounding action of the stator core unit 101.

[0053] By adopting the above technical solution, multiple sets of parallel and spaced hinge shafts are used in conjunction with the driving components to form a linkage transmission structure. This allows the driving force of the driving components to be smoothly transmitted to the movable frame, avoiding motion jamming and rigid impact, ensuring smooth and stable assembly. At the same time, the arrangement of each hinge shaft on the same side makes the structure more compact and the force distribution more reasonable, effectively improving the reliability of the mechanism and the accuracy of the assembly.

[0054] In one embodiment, the first circular motion drive 14 is a cylinder extension component or a motor extension component.

[0055] Specifically, the structure of this device consists of a first circular motion drive component 14, which is either a cylinder telescopic component or a motor telescopic component.

[0056] Its working principle is to output linear driving force through the pneumatic telescopic movement of the cylinder telescopic component or the electric telescopic movement of the motor telescopic component to drive the first rounding action movable frame 13 to rotate around the first hinge axis 15, thereby realizing the rounding action of the stator core unit 101.

[0057] By adopting the above technical solution, a stable and reliable linear drive power can be provided for the circle assembly action, meeting the drive power and control accuracy requirements under different working conditions. The structure is simple and easy to automate, which helps to improve the applicability and operational stability of the circle assembly device.

[0058] Please refer to it again. Figure 7 In one embodiment, the second circular motion mechanism 2 further includes a second circular motion drive fixing frame 25 protruding from the end of the second circular motion support frame 21 away from the second circular motion movable frame 22. The two ends of the second circular motion drive member 23 are respectively provided with a fifth hinge shaft 231 and a sixth hinge shaft 232. The fifth hinge shaft 231, the sixth hinge shaft 232 and the second hinge shaft 24 are arranged in parallel and spaced apart, and are all located on the same side of the second circular motion support frame 21. The fifth hinge shaft 231 is connected to the second circular motion drive fixing frame 25, and the sixth hinge shaft 232 is connected to the second circular motion movable frame 22.

[0059] The specific structural composition of this device is as follows: the second circular motion mechanism 2 further includes a second circular motion drive fixing frame 25 protruding from the end of the second circular motion support frame 21 away from the end of the second circular motion movable frame 22. The two ends of the second circular motion drive member 23 are respectively provided with a fifth hinge shaft 231 and a sixth hinge shaft 232. The fifth hinge shaft 231, the sixth hinge shaft 232 and the second hinge shaft 24 are arranged parallel to each other and are all located on the same side of the second circular motion support frame 21. The fifth hinge shaft 231 is connected to the second circular motion drive fixing frame 25, and the sixth hinge shaft 232 is connected to the second circular motion movable frame 22.

[0060] Its working principle is that when the second rounding action drive 23 performs telescopic movement, it can smoothly transmit the driving force to the second rounding action movable frame 22 through the adaptive rotation of the fifth hinge shaft 231 and the sixth hinge shaft 232, thereby driving the second rounding action movable frame 22 to rotate smoothly around the second hinge shaft 24 to complete the rounding action of the two sets of first stator iron core groups 102.

[0061] By adopting the above technical solution, multiple parallel hinge shafts arranged on the same side are used in conjunction with driving components to form a linkage drive structure, which can avoid motion interference and rigid impact during the rounding process, ensure uniform and efficient transmission of driving force, and make the rotation of the second rounding action mechanism 2 more stable and precise. At the same time, the overall structure layout is compact and reasonable, and the force is balanced, which effectively improves the accuracy of the secondary rounding operation and the reliability of the mechanism operation.

[0062] In one embodiment, the second circular motion drive 23 is a cylinder extension component or a motor extension component.

[0063] Specifically, the structure of this device consists of a second circular motion drive component 23, which is either a cylinder telescopic component or a motor telescopic component.

[0064] Its working principle is to output linear driving force through the pneumatic telescopic movement of the cylinder telescopic component or the electric telescopic movement of the motor telescopic component, which drives the second circular motion frame 22 to rotate around the second hinge axis 24, thereby realizing the circular motion of the two first stator core groups 102.

[0065] By adopting the above technical solution, a stable and reliable linear drive power can be provided for the secondary circle-joining action. The drive form can be flexibly selected according to the production site conditions and control accuracy requirements. The structure is simple, the response is fast, and it is easy to automate control, effectively improving the applicability and operational stability of the second circle-joining action mechanism 2.

[0066] like Figure 4 As shown, in one embodiment, the hinge point of the first hinge axis 15 is determined by the following method: at least two positions of the stator core unit 101 before and after the first assembly operation are selected, and the corresponding points are connected to form line segments. The perpendicular bisector of each line segment is taken, and the intersection of the perpendicular bisectors is the first hinge point A1 of the first hinge axis 15.

[0067] The specific structural composition of this device is as follows: the hinge point of the first hinge shaft 15 is determined by selecting at least two positions of the stator core unit 101 before and after the first circular motion, connecting the corresponding points to form line segments, taking the perpendicular bisector of each line segment, and the intersection of each perpendicular bisector is the first hinge point A1 of the first hinge shaft 15.

[0068] Its working principle is to determine the intersection of the perpendicular bisectors of the lines connecting the corresponding feature points by using a pure geometric positioning method based on the actual spatial position change of the stator core unit 101 before and after the assembly. This accurately determines the hinge point position of the first hinge axis 15, so that when the first assembly motion frame 13 rotates around the hinge point, it can strictly fit the ideal arc trajectory required by the stator core unit 101, avoiding the deviation of the motion path due to the hinge point deviation, thereby driving the stator core unit 101 to complete a smooth and accurate first-level assembly motion.

[0069] By adopting the above technical solution, the hinge point position can be accurately matched based entirely on the stator core unit 101's own circular motion trajectory parameters. This ensures that the rotation trajectory is highly consistent with the preset circular path from the structural source, effectively preventing misalignment, collision interference, or uneven weld gaps between stator core units 101 during the circular assembly process. This significantly improves the circular forming accuracy and roundness of the segmented stator core. At the same time, the hinge point determination method has a clear geometric principle and a rigorous and reliable positioning method, which can effectively reduce mechanism design and assembly errors, further enhancing the stability, repeatability, and long-term operational reliability of the circular assembly mechanism.

[0070] like Figure 8 As shown, in one embodiment, the hinge point of the second hinge axis 24 is determined in the following manner: Select at least two positions of the stator core unit 101 before and after the second assembly operation, and connect the corresponding points to form line segments. Take the perpendicular bisector of each line segment, and the intersection of the perpendicular bisectors is the second hinge point A2 of the second hinge axis 24.

[0071] The specific structural composition of this device is as follows: the hinge point of the second hinge shaft 24 is determined by selecting at least two positions of the stator core unit 101 before and after the second circular motion, connecting the corresponding points to form line segments, and taking the perpendicular bisector of each line segment. The intersection of the perpendicular bisectors is the second hinge point A2 of the second hinge shaft 24. Its working principle is based on the positional change of the stator core unit 101 before and after the second circular motion, obtaining the intersection of the perpendicular bisectors of the lines connecting the corresponding points through geometric construction, thereby determining the hinge point position of the second hinge shaft 24, so that the second circular motion movable frame 22... The mechanism can smoothly rotate around the hinge point along the required arc trajectory of the stator core unit 101. By adopting the above technical solution, the position of the second hinge point A2 can be accurately determined according to the actual arc trajectory of the stator core unit 101, so that the rotation trajectory of the second arc movement is consistent with the preset arc trajectory. This avoids motion interference, misalignment, and uneven gaps during the assembly process, effectively improving the motion accuracy of the secondary arc and the overall arc forming effect of the stator core. At the same time, the hinge point determination method has a clear geometric principle and accurate and reliable positioning, further improving the motion stability and assembly accuracy of the overall arc mechanism.

[0072] By adopting the above technical solution, the second rounding action drive component 23 can drive the first rounding action support frame 11 to move downward to achieve the rounding action. The second hinge point is correspondingly retracted below the original position, and the second hinge point is located between the vertical line of the stator core unit 101 before rounding and the stator core after rounding. This ensures that the rounding trajectory accurately fits the stator core forming contour, avoiding splicing interference and uneven gaps. At the same time, it makes the arrangement of the second rounding action drive component 23 more compact and reasonable, making full use of the installation space and avoiding space redundancy and waste. While improving the rounding accuracy and forming quality, it also optimizes the overall mechanism space layout and improves the equipment space utilization and operational stability.

[0073] In one embodiment, the second hinge point A2 is located inside the circle of the second stator core assembly 103 after the second assembly action.

[0074] Specifically, the structure of this device consists of a second hinge point A2 located on the inner side of the circumference of the second stator core assembly 103 formed after the second rounding action is completed. Its working principle is that when the second rounding action drive 23 drives the first rounding action support frame 11 to move downward to perform the rounding action, the second hinge point A2 arranged on the inner side serves as the rotation center, which allows the first rounding action support frame 11 and the first stator core assembly 102 above it to retract and round inward according to a preset trajectory, thereby successfully forming the second stator core assembly 103.

[0075] By adopting the above technical solution, the second hinge point A2 is arranged inside the forming circle of the second stator core assembly 103, which can ensure that the stator core unit 101 retracts smoothly during the folding process, avoids interference between the rotation path and the forming contour, and at the same time makes the installation layout of the second folding action drive 23 more compact and does not occupy extra external space. Under the premise of ensuring accurate folding trajectory and uniform folding gap, the spatial arrangement of the overall mechanism is optimized, improving the space utilization of the equipment and the stability and reliability of the folding action.

[0076] Please refer to the following: Figure 10 In one embodiment, a bridging line 104 is connected between the two first stator core groups 102, and the maximum distance corresponding to the second hinge point A2 is less than or equal to half of the bridging line 104.

[0077] Specifically, the structure of this device consists of a bridging line 104 connecting the two first stator core groups 102, and the maximum distance corresponding to the second hinge point A2 is set to be less than or equal to half the length of the bridging line 104.

[0078] Its working principle is that during the process of the second rounding action driving the first stator core assembly 102 to fold inward and bend downward, by limiting the maximum distance corresponding to the second hinge point A2 to half or less of the length of the bridge line 104, the rotation range and rotation radius of the first stator core assembly 102 can be matched with the reserved length and allowable deformation range of the bridge line 104, ensuring that the rounding action and the natural extension and bending space of the bridge line 104 are coordinated with each other, and no excessive pulling will occur.

[0079] By adopting the above technical solution, it is possible to effectively avoid excessive stretching, twisting deformation, pulling damage or even breakage of the bridge line 104 due to excessive rotation amplitude or unreasonable hinge point position during the rounding process. This ensures that the bridge line 104 is always within a safe deformation range, while ensuring smooth and stable rounding action with a gentle trajectory. It does not affect the rounding accuracy and relative position of the core unit, improves the integrity of the stator core assembly rounding, wiring reliability and final product qualification rate, and also provides a stable and reliable structural foundation for subsequent flattening, welding and other processes.

[0080] like Figure 1 , Figure 13 and Figure 14 As shown, in one embodiment, the segmented stator core assembly device 10 further includes a wire management mechanism 3. The wire management mechanism 3 includes a wire management frame 31, two wire management fixing structures 32 spaced apart on the wire management frame 31, a wire management movable structure 33 spaced apart from the wire management fixing structures 32, and a wire management drive member 34. The two wire management fixing structures 32 are respectively used to abut the ends of the bridge wires 104 between the two stator cores, the wire management movable structure 33 is used to abut the middle of the bridge wires 104, and the wire management drive member 34 is used to drive the wire management movable structure 33 to move along the direction close to the two wire management fixing structures 32, so that the bridge wires 104 are straightened (e.g., ...). Figure 15 (As shown).

[0081] The specific structural composition of this device is as follows: the segmented stator core assembly device 10 also includes a wire management mechanism 3. The wire management mechanism 3 includes a wire management frame 31, two wire management fixing structures 32 spaced apart on the wire management frame 31, a wire management movable structure 33 spaced apart from the wire management fixing structures 32, and a wire management drive 34. The two wire management fixing structures 32 are respectively used to abut at the end position of the bridge wire 104 between the two stator cores, and the wire management movable structure 33 is used to abut at the middle position of the bridge wire 104.

[0082] Its working principle is that the cable management drive 34 drives the cable management movable structure 33 to move in the direction between the two cable management fixed structures 32. The three-point positioning cooperation between the cable management movable structure 33 and the cable management fixed structure 32 applies a directional and gentle thrust to the middle of the bridge line 104, thereby straightening and pulling the bridge line 104 that is loose, skewed or bent during the rounding process, so that it maintains a straight and regular shape.

[0083] By adopting the above technical solution, the automatic straightening of the bridge wire 104 can be completed simultaneously with the rounding of the stator core unit 101. This avoids the bridge wire 104 from becoming tangled, folded, twisted, or unevenly stressed, ensuring that the bridge wire 104 is in a regular shape and under moderate tension. This prevents the bridge wire 104 from being too loose, affecting the assembly accuracy, and also prevents it from being too tight, causing damage to the wire. It effectively protects the bridge wire 104 from being scratched, pulled, or crushed during the rounding, flattening, and subsequent welding processes, significantly improving the overall assembly regularity of the stator core assembly, the reliability of wiring, and the stability of subsequent processes. This is beneficial for improving welding quality and product yield.

[0084] like Figure 16 As shown, in a second aspect, a circular welding device is provided, including a main body of the circular welding device and the above-mentioned segmented stator core assembly device 10, wherein the segmented stator core assembly device 10 is disposed on the main body of the circular welding device.

[0085] By adopting the above technical solutions, the stator core pre-assembly welding equipment is equipped with a precise and efficient stator core pre-assembly function, which improves the core assembly accuracy and welding quality, simplifies the overall assembly process, and increases production efficiency.

[0086] In one embodiment, the main body of the circular welding equipment includes at least one of the following: demolding mechanism 20, conveying mechanism 30, wire end sorting mechanism 40, circular locking mechanism 50, flattening mechanism 60, and welding mechanism 70. The demolding mechanism 20 is used to remove the mold from the stator core unit 101; The conveying mechanism 30 is used to convey the stator core unit 101, the first stator core group 102, and the second stator core group 103; The wire end sorting mechanism 40 is used to sort the wire ends of the stator core unit 101, the first stator core group 102, and the second stator core group 103; The locking mechanism 50 is used to lock the second stator core assembly 103. The flattening mechanism 60 is used to flatten the bridge wire 104 of the second stator core assembly 103; The welding mechanism 70 is used to weld the second stator core assembly 103.

[0087] The structure of this device specifically comprises a main body of a circular welding equipment, including at least one of the following: a demolding mechanism 20, a transport mechanism 30, a wire end sorting mechanism 40, a circular locking mechanism 50, a flattening mechanism 60, and a welding mechanism 70. The demolding mechanism 20 is used to remove the mold of the stator core unit 101; the transport mechanism 30 is used to transport the stator core unit 101, the first stator core group 102, and the second stator core group 103; the wire end sorting mechanism 40 is used to sort the wire ends of the stator core unit 101, the first stator core group 102, and the second stator core group 103; the circular locking mechanism 50 is used to lock the second stator core group 103 into a circular shape; the flattening mechanism 60 is used to flatten the bridge wire 104 of the second stator core group 103; and the welding mechanism 70 is used to weld the second stator core group 103.

[0088] Its working principle is that in the process of assembling and welding, the corresponding mechanism can be selected to cooperate and complete the integrated operation of demolding, transfer, line end cleaning, locking, bridging line 104 flattening and welding in sequence according to the process requirements.

[0089] By adopting the above technical solutions, the entire process of segmented stator cores, from assembly to post-processing welding, can be automated. The integration of multiple functional mechanisms makes the process connection smoother, effectively improving the accuracy of stator core assembly, welding quality and overall production efficiency, reducing manual intervention costs and improving product consistency.

[0090] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for assembling segmented stator cores, characterized in that, include: Two opposing first circular motion mechanisms are provided. Each first circular motion mechanism includes a first circular motion support frame, a first circular motion fixed frame and a first circular motion movable frame mounted on the first circular motion support frame, and a first circular motion driving member that is pulsatorically connected to the first circular motion movable frame. The first circular motion fixed frame is fixedly mounted on the first circular motion support frame and is used to fix a stator core unit. The first circular motion fixed frame is provided with a first hinge shaft. The first circular motion movable frame is connected to the first hinge shaft and is used to fix a stator core unit. The first circular motion driving member is used to drive the first circular motion movable frame to rotate around the first hinge shaft, so that the two stator core units form a first stator core group. Two opposing second circular motion mechanisms are provided. Each second circular motion mechanism includes a second circular motion support frame, a second circular motion movable frame mounted on the second circular motion support frame, and a second circular motion drive member that is pulsatorically connected to the second circular motion movable frame. The second circular motion support frame is provided with a second hinge shaft. The second circular motion movable frame is used to fix the first circular motion support frame. The second circular motion drive member is used to drive the second circular motion movable frame to rotate around the second hinge shaft, so that the two first stator core groups form a second stator core group.

2. The segmented stator core assembly device as described in claim 1, characterized in that, The first circular motion fixing frame includes a first circular motion fixing frame body and a first circular motion fixing seat body disposed on the first circular motion fixing frame body. The first circular motion fixing frame body is fixedly disposed on the first circular motion support frame and is provided with the first hinge shaft. The first circular motion fixing seat body is used to fix a stator core unit. The first circular motion movable frame includes a first circular motion movable frame body and a second circular motion fixing seat body disposed on the first circular motion movable frame body. The first circular motion movable frame body is connected to the first hinge shaft. The second circular motion fixing seat body is used to fix a stator core unit. The straight line where the hinge point of the first hinge shaft is located is located between the first circular motion fixing seat body and the second circular motion fixing seat body.

3. The segmented stator core assembly device as described in claim 2, characterized in that, The first circular fixing base includes a first circular fixing part, a second circular fixing part, and a fixing drive member. The first circular fixing part is fixedly connected to the first circular motion fixing frame. The second circular fixing part is telescopically disposed on the first circular fixing part, and a fixing groove for fixing the stator core unit is formed between the two. The fixing drive member is used to drive the second circular fixing part to move in a direction close to or away from the first circular fixing part to clamp or release the stator core unit.

4. The segmented stator core assembly device as described in claim 1, characterized in that, The hinge point of the first hinge axis is determined in the following way: Select at least two positions of the stator core unit before and after the first assembly operation, and connect the corresponding points to form line segments. Take the perpendicular bisector of each line segment, and the intersection of the perpendicular bisectors is the first hinge point of the first hinge axis.

5. The segmented stator core assembly device as described in claim 1, characterized in that, The hinge point of the second hinge axis is determined in the following way: Select at least two positions of the stator core unit before and after the second assembly operation, and connect the corresponding points to form line segments. Take the perpendicular bisector of each line segment, and the intersection of the perpendicular bisectors is the second hinge point of the second hinge axis.

6. The segmented stator core assembly device as described in claim 5, characterized in that, The second hinge point is located inside the circle where the second stator core assembly is located after the second assembly action.

7. The segmented stator core assembly device as described in claim 5, characterized in that, A bridging line connects the two first stator core groups, and the maximum distance corresponding to the second hinge point is less than or equal to half of the bridging line.

8. The segmented stator core assembly device as described in claim 1, characterized in that, The segmented stator core assembly device further includes a wire straightening mechanism, which includes a wire straightening frame, two wire straightening fixing structures spaced apart on the wire straightening frame, a wire straightening movable structure spaced apart from the wire straightening fixing structures, and a wire straightening drive. The two wire straightening fixing structures are respectively used to abut the ends of the bridge wires between the two stator cores, the wire straightening movable structure is used to abut the middle of the bridge wires, and the wire straightening drive is used to drive the wire straightening movable structure to move along the direction close to the two wire straightening fixing structures, so that the bridge wires are straightened.

9. A circular welding device, characterized in that, The device includes a main body for assembling circular welding equipment and a segmented stator core assembly device as described in any one of claims 1 to 8, wherein the segmented stator core assembly device is disposed on the main body of the assembling circular welding equipment.

10. The circular welding equipment as described in claim 9, characterized in that, The main body of the round welding equipment includes at least one of the following: demolding mechanism, handling mechanism, wire end sorting mechanism, round locking mechanism, flattening mechanism, and welding mechanism; The demolding mechanism is used to remove the mold of the stator core unit; The conveying mechanism is used to convey the stator core unit, the first stator core assembly, and the second stator core assembly; The wire end sorting mechanism is used to sort the wire ends of the stator core unit, the first stator core group, and the second stator core group; The locking mechanism is used to lock the second stator core assembly in a circular shape. The flattening mechanism is used to flatten the bridge wire of the second stator core assembly; The welding mechanism is used to weld the second stator core assembly.

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