Stator synchronous hot jacket automation equipment based on double-stator motor

Abstract

The invention relates to the technical field of stator shrinkage fit, in particular to stator synchronous shrinkage fit automation equipment based on a double-stator motor, which comprises a stator shrinkage fit platform and a manipulator, a Y-axis linear module is mounted on the stator shrinkage fit platform, and a shell transverse fixing jig is in power connection with the Y-axis linear module; the stator shrinkage fit platform is provided with two stator transverse pushing power mechanisms which are mutually symmetrical, the two stator transverse pushing power mechanisms are located on the two sides of the front end of the Y-axis linear module respectively, and the two stator transverse pushing power mechanisms are both in power connection with stator fixing jigs which are oppositely arranged; the structure that the shell is transversely placed is ingeniously utilized, the problem that in the prior art, the heating temperature of the shell is not uniform is effectively solved through cooperative heating of the shell heating modules in three directions, the shell is particularly matched with a special-shaped shell structure with a rear cover, it is ensured that the whole shell is heated uniformly, and the situation that the assembling precision is affected due to inconsistent thermal deformation is avoided; and meanwhile, the heating efficiency is greatly improved through multi-direction heating.

Description

Technical Field

[0001] This invention relates to the field of stator heat fitting technology, and in particular to an automated equipment for stator synchronous heat fitting based on a dual-stator motor. Background Technology

[0002] In existing automated stator heat-fitting processes, the core technology involves longitudinally fixing the outer shell onto a pre-set fixture and then using downward or upward pressure to achieve heat-fitting between the shell and the stator. For example, patent publication number CN222569758U discloses a heat-fitting stator device. This device uses multiple positioning fixtures on a drive disc mechanism, integrating a shell positioning seat and a stator positioning cylinder. When the drive disc rotates to the position corresponding to the heating and fitting mechanism, the shell heating component heats the shell, and then the stator gripping component grips the stator and places it inside the heated shell. The continuous rotation of the disc enables continuous stator heat-fitting. This technical solution effectively improves the assembly efficiency of unidirectional stator heat-fitting and simplifies the automated process, demonstrating significant advantages in the mass production of single-stator motors. However, existing technologies and similar stator heat-fitting processes have significant limitations: they can only achieve unidirectional stator heat-fitting assembly in a single process, and cannot meet the heat-fitting requirements of dual-stator motors. In the production process of a dual-stator motor, since two stators need to be assembled at each end of the housing, the existing unidirectional heat-fitting process requires two separate heat-fitting operations: after the housing is first fixed, one end is heated and the first stator is assembled; after the housing is disassembled and the fixing direction is adjusted, the other end is heated again and the second stator is assembled. This two-stage operation mode has several technical drawbacks: firstly, positioning deviations are prone to occur during the two fixing processes of the housing, making it difficult to guarantee the concentricity of the two stators; secondly, the two ends of the housing need to be heated separately, which not only prolongs the processing cycle but may also cause fluctuations in the assembly gap due to temperature differences and inconsistent thermal deformation between the two heating processes; furthermore, the cumulative error of the two heat-fitting operations will significantly affect the coaxiality accuracy of the dual-stator motor, thereby reducing the motor's operational stability and service life, and failing to meet the high-precision assembly requirements of dual-stator motors.

[0003] To address the technical challenges of heat fitting for dual-stator motors, targeted improvements have emerged in existing technologies. For example, the invention patent publication number CN113078782B discloses a heat fitting device for dual-stator motors. This device, through optimized structural design, enables the one-time assembly of the two stators with the motor housing, eliminating the need for secondary heat fitting operations. This not only significantly improves assembly efficiency and speed but also effectively enhances the concentricity of the dual stators through an integrated assembly process. However, this technical solution still has room for improvement: First, its heating mechanism uses an electric heating coil that enters the housing from top to bottom. Due to the axial positional relationship between the electric heating coil and the housing, there is a gradient difference in heat transfer during the heating process, resulting in a higher heating temperature at the top of the housing than at the bottom. The temperature uniformity at both ends of the housing is insufficient, which may cause inconsistent axial thermal deformation of the housing and affect the fitting accuracy between the stator and the housing. Second, the stator loading operation process of this device is relatively complex. During the process of grabbing and transferring the stator to the housing for docking, factors such as positioning reference deviation and gripping posture fluctuation can easily increase assembly errors, further affecting the coaxiality control accuracy of the dual stators, making it difficult to fully meet the manufacturing requirements of high-precision dual-stator motors.

[0004] Therefore, it is necessary to propose a new technical solution to address the problems existing in the aforementioned prior art. Summary of the Invention

[0005] To overcome the shortcomings mentioned above, the present invention aims to provide a technical solution that can solve the above problems.

[0006] An automated equipment for stator synchronous heat fitting based on dual stator motors includes a stator heat fitting platform and a robot arm. A Y-axis linear module is installed on the stator heat fitting platform, and a horizontally fixed fixture with a housing is poweredly connected to the Y-axis linear module. Two symmetrical stator lateral thrust mechanisms are installed on the stator heat fitting platform. The two stator lateral thrust mechanisms are located on both sides of the front end of the Y-axis linear module, and each stator lateral thrust mechanism is poweredly connected to a stator fixing fixture that is arranged opposite to it. Two symmetrical heating element lateral pushing force mechanisms are also installed on the stator heat fitting platform. The two heating element lateral pushing force mechanisms are located on both sides of the rear end of the Y-axis linear module. A heating element fixing structure is also installed on the stator heat fitting platform behind the Y-axis linear module. A shell heating module is installed on the power connection end of the two heating element lateral pushing force mechanisms and the heating element fixing structure. The robotic arm is configured to grip the stator and fix it to the stator fixing fixture. The robotic arm is also configured to grip the outer shell and fix it to the outer shell horizontal fixing fixture. The Y-axis linear module is configured to move the outer shell on the outer shell horizontal fixing fixture to the rear, so that the outer shell heating module heats both ends and the rear of the outer shell. The Y-axis linear module is also configured to move the outer shell on the outer shell horizontal fixing fixture to the front, so that the two stator horizontal pushing force mechanisms drive the stator to be pushed laterally into the outer shell from both ends.

[0007] Preferably, the horizontal fixing fixture for the outer shell is provided with multiple micro-swing mechanisms, and the micro-swing mechanisms are equipped with guide components. The guide components are used to form a guiding docking relationship with the outer shell. The horizontal fixing fixture for the outer shell is also provided with a power correction mechanism that acts on the micro-swing mechanism. The micro-swing mechanism drives the outer shell through the power of the power correction mechanism, so that the outer shell is corrected to the accurate position of docking with the stator or docking with the outer shell heating module.

[0008] Preferably, the micro-swing mechanism includes a Y-axis linear guide fixed on a horizontally mounted fixture, a micro-swing plate slidably connected to the Y-axis linear guide, a first X-axis linear guide fixedly mounted on the micro-swing plate, and a micro-swing block slidably connected to the first X-axis linear guide. The power alignment mechanism includes a clamping cylinder fixedly mounted on the horizontally mounted fixture, a clamping block fixedly mounted on the side of the micro-swing plate and mating with the clamping cylinder, a mating cylinder fixedly mounted on the horizontally mounted fixture, a triangular block poweredly connected to the mating cylinder, and two guide wheels movably connected to the micro-swing block. The guide is fixedly mounted on the micro-swing block. The clamping cylinder clamps the clamping block to fix the relative position of the micro-swing plate and the Y-axis linear guide by driving the clamping block. The mating cylinder fixes the relative position of the micro-swing block and the first X-axis linear guide by driving the triangular block to insert between the two guide wheels.

[0009] Preferably, the stator lateral push mechanism includes a second X-axis linear guide rail mounted on the stator heat-shrinking platform, an X-axis push rod motor mounted on the stator heat-shrinking platform, and a first lateral push plate slidably connected to the second X-axis linear guide rail. The first lateral push plate is poweredly connected to the X-axis push rod motor, and the stator fixing fixture is mounted on the first lateral push plate.

[0010] Preferably, the stator fixing fixture includes an X-axis guide frame fixedly mounted on the stator heat-shrinking platform, an X-axis transverse push frame guided and connected to the X-axis guide frame, a third X-axis linear guide rail fixedly mounted on the X-axis guide frame, a tensioning push rod motor slidably connected to the third X-axis linear guide rail, and a tensioning mechanism fixedly mounted on the X-axis transverse push frame and poweredly connected to the tensioning push rod motor. The X-axis transverse push frame is fixedly mounted on the first transverse push plate.

[0011] Preferably, the heating element lateral pushing force mechanism includes a fourth X-axis linear guide rail fixedly mounted on the stator heat-shrinking platform, an X-axis rodless cylinder mounted on the stator heat-shrinking platform, and a second lateral push plate slidably connected to the fourth X-axis linear guide rail. The second lateral push plate is poweredly connected to the X-axis rodless cylinder, and the outer shell heating module mounted on the heating element lateral pushing force mechanism is mounted on the second lateral push plate.

[0012] Preferably, the outer shell heating module installed on the horizontal pushing force mechanism of the heating element includes a first heating transformer fixedly installed on the second horizontal push plate, a first heat insulation seat installed on the second horizontal push plate, and an inner shell heating coil assembly installed on the first heat insulation seat, wherein the first heating transformer acts on the inner shell heating coil assembly.

[0013] Preferably, the heating element fixing structure includes a profile support frame fixedly installed on the stator heat sleeve platform and a second heat insulation seat installed in front of the profile support frame. The outer shell heating module installed on the heating element fixing structure includes a second heating transformer fixedly installed on the profile support frame and an outer shell rear heating coil assembly installed in front of the second heat insulation seat. The second heating transformer acts on the outer shell rear heating coil assembly.

[0014] Preferably, it also includes a workpiece loading platform, on which two sets of workpiece conveyor lines are provided. One set of workpiece conveyor lines is powered to a left stator positioning fixture and a right stator positioning fixture, and the other set of workpiece conveyor lines is powered to a housing horizontal fixing fixture. The left stator positioning fixture, the right stator positioning fixture, and the housing horizontal fixing fixture are moved by the workpiece conveyor to a position that can be covered by the movement range of the robot arm.

[0015] Preferably, it also includes a workpiece unloading platform, which is provided with a trolley binding position covering the movement range of the robot arm and a trolley body docking with the trolley binding position.

[0016] Compared with the prior art, the beneficial effects of the present invention are: By cleverly utilizing the horizontally placed shell structure and coordinating heating from three shell heating modules, the problem of uneven shell heating in existing technologies is effectively solved. This is especially suitable for irregularly shaped shell structures with back covers, ensuring uniform heating of the entire shell and avoiding the impact of inconsistent thermal deformation on assembly accuracy. At the same time, multi-directional heating also significantly improves heating efficiency. Furthermore, the horizontally placed shell design allows for precise switching between the heating and assembly stations via the movement of the Y-axis linear module. It also simultaneously connects to the two stator horizontal pushing force mechanisms and the two heating element horizontal pushing force mechanisms, enabling the assembly of the double stators in one step without secondary shell fixing. This eliminates the cumulative error of secondary heat fitting and significantly improves the concentricity of the double stator assembly. In addition, the robotic arm can simultaneously load the stator during the shell heating process, achieving parallel processing, avoiding idle robotic arm operation, and improving the overall operating efficiency of the equipment.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0019] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of each mechanism on the stator heat-shrinking platform in this invention; Figure 3 This is a schematic diagram of the structure of each mechanism on the workpiece loading platform in this invention; Figure 4 This is a schematic diagram of the stator horizontal thrust mechanism and the stator fixing fixture in this invention; Figure 5 This is a schematic diagram of the horizontally fixed fixture for the outer shell in this invention; Figure 6 This is a schematic diagram of the micro-swing mechanism and the dynamic positioning mechanism in this invention.

[0020] The reference numerals and names in the figure are as follows: 1. Outer shell 2. Stator 10. Stator heat fitting platform 11. Y-axis linear module 12. Workpiece loading platform 12. Workpiece conveyor line 121. Left stator positioning fixture 122. Right stator positioning fixture 123. Outer shell positioning fixture 124. Workpiece unloading platform 13. Trolley binding position 131. Trolley body 132. Robot arm 20. Outer shell horizontal fixing fixture 30. Micro-swing mechanism 31. Guide component 311. Y-axis linear guide rail 312. Micro-swing plate 313. First X-axis linear guide rail 314. Micro-swing block 315. Power correction mechanism 32. Clamping cylinder 321. Clamping block 322. Interlocking cylinder 323. Triangular block 324. Guide wheel 325. Stator horizontal push Power mechanism 40, second X-axis linear guide rail 41, X-axis push rod motor 42, first horizontal push plate 43, stator fixing fixture 50, X-axis guide frame 51, X-axis horizontal push frame 52, third X-axis linear guide rail 53, tension push rod motor 54, tensioning mechanism 55, heating element horizontal pushing force mechanism 60, fourth X-axis linear guide rail 61, X-axis rodless cylinder 62, second horizontal push plate 63, heating element fixing structure 70, profile support frame 71, second heat insulation seat 72, outer shell heating module 80, first heating transformer 81, first heat insulation seat 82, inner heating coil assembly of outer shell 83, second heating transformer 84, rear heating coil assembly of outer shell 85. Detailed Implementation

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figure 1-6 In this embodiment of the invention, a stator synchronous heat fitting automation device based on a dual stator motor includes a stator heat fitting platform 10 and a robot arm 20. A Y-axis linear module 11 is installed on the stator heat fitting platform 10, and a housing horizontally fixed fixture 30 is poweredly connected to the Y-axis linear module 11. Two symmetrical stator lateral thrust mechanisms 40 are installed on the stator heat fitting platform 10. The two stator lateral thrust mechanisms 40 are located on both sides of the front end of the Y-axis linear module 11, and each stator lateral thrust mechanism 40 is poweredly connected to a stator fixing fixture 50 arranged opposite to it. Two symmetrical heating element lateral pushing force mechanisms 60 are also installed on the stator heat fitting platform 10. The two heating element lateral pushing force mechanisms 60 are located on both sides of the rear end of the Y-axis linear module 11. A heating element fixing structure 70 located behind the Y-axis linear module 11 is also installed on the stator heat fitting platform 10. A shell heating module 80 is installed on the power connection end of the two heating element lateral pushing force mechanisms 60 and the heating element fixing structure 70. The robotic arm 20 is configured to grip the stator 2 and fix it to the stator fixing fixture 50. The robotic arm 20 is also configured to grip the outer shell 1 and fix it to the outer shell horizontal fixing fixture 30. The Y-axis linear module 11 is configured to move the outer shell 1 on the outer shell horizontal fixing fixture 30 to the rear, so that the outer shell heating module 80 heats both ends and the rear of the outer shell 1. The Y-axis linear module 11 is also configured to move the outer shell 1 on the outer shell horizontal fixing fixture 30 to the front, so that the two stator horizontal pushing force mechanisms 40 drive the stator 2 to be pushed laterally into the outer shell 1 from both ends of the outer shell 1 respectively.

[0023] In the above technical solution, the workflow of the automated stator 2 synchronous heat fitting equipment based on dual stator 2 motors revolves around the coordinated operation of the stator heat fitting platform 10 and the robot arm 20: First, the robot arm 20 simultaneously completes two loading actions. On the one hand, it grabs the outer shell 1 and precisely fixes it in the outer shell horizontal fixing fixture 30 on the Y-axis linear module 11. On the other hand, it grabs the left and right stators 2 and fixes them respectively to the stator fixing fixtures 50 of the two stator horizontal pushing force mechanisms 40 located on both sides of the front end of the Y-axis linear module 11 and symmetrical to each other, realizing the parallel operation of the loading process. Subsequently, the Y-axis linear module 11 starts, driving the outer shell horizontal fixing fixture 30 and the outer shell 1 to move backward until the outer shell 1 reaches the position to dock with the heating mechanism. At this time, the Y-axis linear module... The two heating element horizontal pushing force mechanisms 60 on both sides of the rear end of the 11 push the outer shell heating module 80 at its power end closer to both ends of the outer shell 1. If the outer shell 1 is set as an irregular sleeve structure with a rear cover, the outer shell heating module 80 on the heating element fixing frame 70 located behind the Y-axis linear module 11 docks with the rear side of the outer shell 1. The three outer shell heating modules 80 in the three directions work together to heat the two ends and the rear side of the outer shell 1 synchronously. After the heating is completed, the Y-axis linear module 11 starts again, driving the outer shell 1 forward to the assembly position corresponding to the two stator fixing fixtures 50. Finally, the two stator horizontal pushing force mechanisms 40 act synchronously, pushing the stator 2 on their respective stator fixing fixtures 50 laterally and smoothly into the interior of the outer shell 1 from both ends, completing the synchronous thermal assembly of the two stators 2.

[0024] Therefore, the above technical solution cleverly utilizes the horizontally placed structure of the outer shell 1, and through the coordinated heating of the outer shell heating modules 80 in three directions, effectively solves the problem of uneven heating temperature of the outer shell 1 in the prior art. It is especially suitable for the irregularly shaped outer shell 1 structure with a back cover, ensuring that the outer shell 1 is heated evenly as a whole, avoiding the impact of inconsistent thermal deformation on assembly accuracy. At the same time, multi-directional heating also greatly improves heating efficiency. Moreover, by utilizing the horizontally placed design of the outer shell 1, the movement of the Y-axis linear module 11 enables the precise switching of the outer shell 1 between the heating station and the assembly station, and simultaneously connects the two stator horizontal pushing force mechanisms 40 and the two heating element horizontal pushing force mechanisms 60. The assembly of the double stators 2 can be completed in one step without secondary fixing of the outer shell 1, eliminating the cumulative error of secondary heat fitting and significantly improving the concentricity of the double stator 2 assembly. In addition, the robot arm 20 can simultaneously complete the loading of the stator 2 during the heating process of the outer shell 1, realizing parallel operation of the process, avoiding the robot arm 20 being idle, and improving the overall operating efficiency of the equipment.

[0025] Please see Figure 5-6 Based on the above technical solution, it is further proposed that the horizontal fixing fixture 30 for the outer shell is provided with multiple micro-swing mechanisms 31, and guide members 311 are installed on the micro-swing mechanisms 31. The guide members 311 are used to form a guiding docking relationship with the outer shell 1. The horizontal fixing fixture 30 for the outer shell is also provided with a power correction mechanism 32 that acts on the micro-swing mechanism 31. The micro-swing mechanism drives the outer shell 1 through the power of the power correction mechanism 32, so that the outer shell 1 is corrected to the accurate position of docking with the stator 2 or docking with the outer shell heating module 80. The micro-swing mechanism 31 includes a Y-axis linear guide rail 312 fixed on the horizontally placed fixing fixture 30 of the outer shell, a micro-swing plate 313 slidably connected to the Y-axis linear guide rail 312, a first X-axis linear guide rail 314 fixedly installed on the micro-swing plate 313, and a micro-swing block 315 slidably connected to the first X-axis linear guide rail 314. The power correction mechanism 32 includes a clamping cylinder 321 fixedly installed on the horizontally placed fixing fixture 30 of the outer shell, a clamping block 322 fixedly installed on the side of the micro-swing plate 313 and mating with the clamping cylinder 321, and a micro-swing block 315 fixedly installed on the horizontally placed fixing fixture 30 of the outer shell. The fixture 30 includes a mating cylinder 323, a triangular block 324 powered by the mating cylinder 323, and two guide wheels 325 movably connected to the micro-swing block 315. The guide member 311 is fixedly installed on the micro-swing block 315. The clamping cylinder 321 drives the clamping block 322 to clamp and fix the relative position of the micro-swing plate 313 and the Y-axis linear guide rail 312. The mating cylinder 323 drives the triangular block 324 to insert between the two guide wheels 325 to fix the relative position of the micro-swing block 315 and the first X-axis linear guide rail 314.

[0026] When the robotic arm 20 grasps the outer shell 1 and places it onto the micro-swing mechanism 31, the micro-swing mechanism 31 initially docks with the outer shell 1 through the guide member 311. Then, by utilizing the micro-swing characteristics of the micro-swing mechanism 31, the outer shell 1 can quickly and accurately dock with the guide member 311. At this time, the outer shell 1 and the outer shell horizontal fixing fixture 30 are in a relaxed state. When heating or heat fitting of the stator 2 is required, the power correction mechanism 32 corrects the outer shell 1 to the correct position. The cleverly designed coupling structure reduces the accuracy of the robotic arm 20 grasping the outer shell 1 and docking it with the outer shell horizontal fixing fixture 30; it also allows the robotic arm 20 to more flexibly remove the outer shell 1 from the outer shell horizontal fixing fixture 30 after the outer shell 1 is heat fitted.

[0027] The micro-swing mechanism 31, through the combination of the Y-axis linear guide 312, the micro-swing plate 313, the first X-axis linear guide 314, and the micro-swing block 315, provides the outer shell 1 with fine-tuning freedom in the X and Y axes. Combined with the guide member 311 and the guide docking with the outer shell 1, it can effectively adapt to positional offsets caused by machining errors or gripping deviations in the outer shell 1. Furthermore, the power alignment mechanism 32 uses the clamping cylinder 321 to clamp the clamping block 322 to fix the position of the micro-swing plate 313 in the Y-axis direction, and uses the interlocking cylinder 323 to drive the triangular block 324 to insert between the guide wheels 325 for fixation. The position of the micro-swing block 315 in the X-axis direction can precisely drive the outer shell 1 to correct its accurate posture for docking with the outer shell heating module 80 before heating, ensuring that the two ends and rear side of the outer shell 1 are tightly fitted with the heating module and heated evenly. At the same time, before heat fitting, it corrects the outer shell 1 to the docking position coaxial with the two stators 2, eliminating gap fluctuations or jamming problems caused by the positioning deviation of the outer shell 1 when the stators 2 are pushed in, further improving the concentricity and consistency of the double stators 2 assembly. It is especially suitable for scenarios where there are slight differences in the size of the outer shell 1 in mass production, enhancing the versatility and stability of the equipment.

[0028] Please see Figure 2 and Figure 4Based on the above technical solution, a stator lateral pushing force mechanism 40 is further proposed, comprising a second X-axis linear guide rail 41 mounted on the stator heat-shrinking platform 10, an X-axis push rod motor 42 mounted on the stator heat-shrinking platform 10, and a first lateral push plate 43 slidably connected to the second X-axis linear guide rail 41. The first lateral push plate 43 is poweredly connected to the X-axis push rod motor 42, and a stator fixing fixture 50 is mounted on the first lateral push plate 43. The stator fixing fixture 50 comprises an X-axis guide frame 51 fixedly mounted on the stator heat-shrinking platform 10, an X-axis lateral push frame 52 guidedly connected to the X-axis guide frame 51, a third X-axis linear guide rail 53 fixedly mounted on the X-axis guide frame 51, a tensioning push rod motor 54 slidably connected to the third X-axis linear guide rail 53, and a tensioning mechanism 55 fixedly mounted on the X-axis lateral push frame 52 and poweredly connected to the tensioning push rod motor 54. The X-axis lateral push frame 52 is fixedly mounted on the first lateral push plate 43.

[0029] In the above technical solution, the stator horizontal pushing force mechanism 40, through the cooperation of the second X-axis linear guide rail 41 and the X-axis push rod motor 42, drives the first horizontal push plate 43 and the stator fixing fixture 50 to move along the X-axis, providing a stable and controllable pushing force for the stator 2 to be pushed in synchronously from both ends of the outer casing 1, avoiding the problems of stator 2 tilting or jamming caused by uneven force or movement deviation during the pushing process; while in the stator fixing fixture 50, the X-axis guide frame 51 and the third X-axis linear guide rail 53 provide precise guiding support for the tensioning mechanism 55, and the tensioning push rod motor 54 drives the tensioning mechanism. The X-axis horizontal push frame 52 can adaptively clamp and fix stators 2 of different specifications, which not only ensures the positioning accuracy of stators 2 before pushing, but also improves the adaptability of the equipment to various models of dual stator 2 motors. At the same time, the fixed connection between the X-axis horizontal push frame 52 and the first horizontal push plate 43 makes the stator fixing fixture 50 and the horizontal push force mechanism form a linkage closed loop, ensuring that the stator 2 always maintains the coaxial posture with the outer shell 1 during the horizontal push, further reducing assembly errors. Combined with the previous precise positioning and uniform heating design of the outer shell 1, it can comprehensively ensure the assembly accuracy and stability of the synchronous heat sleeve of the dual stators 2.

[0030] Please see Figure 2Based on the above technical solution, a further proposed heating element transverse pushing force mechanism 60 includes a fourth X-axis linear guide rail 61 fixedly mounted on the stator heat-shrinking platform 10, an X-axis rodless cylinder 62 mounted on the stator heat-shrinking platform 10, and a second transverse push plate 63 slidably connected to the fourth X-axis linear guide rail 61. The second transverse push plate 63 is poweredly connected to the X-axis rodless cylinder 62, and the outer shell heating module 80 mounted on the heating element transverse pushing force mechanism 60 is mounted on the second transverse push plate 63. The outer shell heating module 80 mounted on the heating element transverse pushing force mechanism 60 includes a first heating transformer 81 fixedly mounted on the second transverse push plate 63, a first heat insulation seat 82 mounted on the second transverse push plate 63, and an inner outer shell heating coil assembly 83 mounted on the first heat insulation seat 82. The first heating transformer 81 acts on the inner outer shell heating coil assembly 83.

[0031] In the above technical solution, the heating element horizontal pushing force mechanism 60, through the coordinated cooperation of the fourth X-axis linear guide rail 61 and the X-axis rodless cylinder 62, drives the second horizontal push plate 63 and the outer shell heating module 80 to move smoothly and quickly along the X-axis. This can precisely control the docking distance between the inner heating coil assembly 83 and both ends of the outer shell 1, ensuring a uniform fit gap between the heating coil and the inner wall of the outer shell 1, thus guaranteeing heating efficiency and avoiding contact wear. In the outer shell heating module 80, the first heating transformer 81 provides a stable heating power output to the inner heating coil assembly 83, and the heating temperature can be precisely adjusted according to the material and thickness of the outer shell 1. In conjunction with the heat insulation and protection design of the first heat insulation seat 82, it can reduce the energy loss caused by heat conduction to the main body of the equipment, prevent equipment components from being damaged by high temperature, and reduce the safety hazards of the operating environment. This structure, together with the multi-directional heating design of the previous horizontally fixed fixture 30 for the outer shell, further ensures the heating uniformity of both ends and the inner side of the outer shell 1. The rapid response characteristics of the X-axis rodless cylinder 62 shorten the forward and backward stroke time of the heating module. Combined with the parallel process design, it further improves the overall heat fitting efficiency, while adapting to the heating requirements of outer shell 1 of different lengths and specifications, enhancing the versatility and operational stability of the equipment.

[0032] Please see Figure 2 Based on the above technical solution, the heating element fixing structure 70 is further proposed to include a profile support frame 71 fixedly installed on the stator heat sleeve platform 10 and a second heat insulation seat 72 installed in front of the profile support frame 71. The outer shell heating module 80 installed on the heating element fixing structure 70 includes a second heating transformer 84 fixedly installed on the profile support frame 71 and an outer shell rear heating coil assembly 85 installed in front of the second heat insulation seat 72. The second heating transformer 84 acts on the outer shell rear heating coil assembly 85.

[0033] In the above technical solution, the heating element fixing structure 70 provides a stable installation support for the outer shell heating module 80 through the profile support frame 71, ensuring that the rear heating coil assembly 85 of the outer shell and the rear side of the outer shell 1 always maintain a precise relative position. Combined with the protective design of the second heat insulation seat 72, it effectively prevents heat from being conducted to the profile support frame 71 and the main body of the equipment during the heating process, reducing energy loss and damage to equipment components from high temperatures, and also reducing safety risks in the operating environment. In the outer shell heating module 80 of this structure, the second heating transformer 84 provides a stable and adjustable heating power to the rear heating coil assembly 85 of the outer shell, enabling it to be used for targeted heating. The irregularly shaped area on the rear side of the hot outer shell 1, together with the heating coil assembly 83 on the inner side of the outer shell on the heating element horizontal pushing force mechanism 60, forms a three-way synergistic heating system with two ends and the rear side. This solves the technical problem of uneven heating of the irregularly shaped outer shell 1 with a rear cover, ensuring that the overall temperature of the outer shell 1 is uniform and consistent, thus providing a guarantee for the assembly accuracy of the subsequent synchronous heat fitting of the double stators 2. At the same time, the robust architectural design and independent heating control unit not only improve the stability and reliability of the heating process, but also adapt to the rear heating requirements of irregularly shaped outer shells 1 of different specifications, further enhancing the versatility and adaptability of the equipment, and helping to simultaneously improve the overall heat fitting efficiency and assembly quality.

[0034] Please see Figure 1 and Figure 3 Based on the above technical solution, it is further proposed that the system also includes a workpiece loading platform 12 and a workpiece unloading platform 13. The workpiece loading platform 12 is equipped with two sets of workpiece conveyor lines 121. One set of workpiece conveyor lines 121 is poweredly connected to a left stator positioning fixture 122 and a right stator positioning fixture 123, while the other set of workpiece conveyor lines 121 is poweredly connected to a housing positioning fixture 124. The left stator positioning fixture 122, the right stator positioning fixture 123, and the housing positioning fixture 124 are moved by the workpiece conveyor to a position that can be covered by the movement range of the robot arm 20. The workpiece unloading platform 13 is equipped with a trolley binding position 131 covering the movement range of the robot arm 20 and a trolley body 132 docked to the trolley binding position 131.

[0035] In the above technical solution, the workpiece loading platform 12 carries the stator 2 and the outer shell 1 respectively through two sets of independent workpiece conveyor lines 121. The left stator positioning fixture 122, the right stator positioning fixture 123, and the outer shell positioning fixture 124 can accurately position the workpiece to be processed. Then, the workpiece is automatically transported to the moving coverage area of ​​the robot arm 20 through the workpiece conveyor. There is no need for manual handling and placement, which reduces the intensity of manual labor and avoids the positioning deviation caused by manual loading. At the same time, the independent design of the two sets of conveyor lines can realize the parallel loading of the stator 2 and the outer shell 1, which is coordinated with the robot arm 2 during the processing. The parallel operation of 0 further reduces the interval time between processes; and the trolley binding position 131 and trolley body 132 on the workpiece unloading platform 13 can directly transfer the finished workpiece to the trolley by the robot arm 20 after the double stator 2 is heat-fitted, realizing the automated collection and transfer of finished products, avoiding the accumulation and secondary handling of workpieces after processing, and the precise design of the trolley binding position 131 ensures the neatness of the finished product placement, which is convenient for subsequent warehousing and circulation; this fully automated design improves the overall production cycle and reduces the errors and safety hazards caused by manual intervention.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. An automated stator synchronous heat-shrinking device based on a dual-stator motor, characterized in that, It includes a stator heat-shrinking platform (10) and a robot (20). A Y-axis linear module (11) is installed on the stator heat-shrinking platform (10), and a housing horizontal fixing fixture (30) is poweredly connected to the Y-axis linear module (11). Two symmetrical stator lateral thrust mechanisms (40) are installed on the stator heat-shrinking platform (10). The two stator lateral thrust mechanisms (40) are located on both sides of the front end of the Y-axis linear module (11), and the two stator lateral thrust mechanisms (40) are poweredly connected to the stator fixing fixtures (50) that are arranged opposite to each other. Two symmetrical heating element lateral pushing force mechanisms (60) are also installed on the stator heat-shrinking platform (10). The two heating element lateral pushing force mechanisms (60) are located on both sides of the rear end of the Y-axis linear module (11). A heating element fixing structure (70) located behind the Y-axis linear module (11) is also installed on the stator heat-shrinking platform (10). A shell heating module (80) is installed on the power connection end of the two heating element lateral pushing force mechanisms (60) and the heating element fixing structure (70). The robotic arm (20) is configured to grip the stator (2) and fix it to the stator fixing fixture (50). The robotic arm (20) is also configured to grip the outer shell (1) and fix it to the outer shell horizontal fixing fixture (30). The Y-axis linear module (11) is configured to move the outer shell (1) on the outer shell horizontal fixing fixture (30) to the rear, so that the outer shell heating module (80) heats both ends and the rear of the outer shell (1). The Y-axis linear module (11) is also configured to move the outer shell (1) on the outer shell horizontal fixing fixture (30) to the front, so that the two stator horizontal pushing force mechanisms (40) drive the stator (2) to be pushed horizontally into the outer shell (1) from both ends of the outer shell (1).

2. The automated stator synchronous heat fitting equipment based on a dual-stator motor according to claim 1, characterized in that, Multiple micro-swing mechanisms (31) are provided on the horizontally fixed fixture (30) of the outer shell. Guide members (311) are installed on the micro-swing mechanism (31). The guide members (311) are used to form a guiding docking relationship with the outer shell (1). The horizontally fixed fixture (30) of the outer shell is also provided with a power correction mechanism (32) that acts on the micro-swing mechanism (31). The micro-swing mechanism drives the outer shell (1) through the power of the power correction mechanism (32) to correct the outer shell (1) to the accurate position of docking with the stator (2) or docking with the outer shell heating module (80).

3. The automated stator synchronous heat-shrinking device based on a dual-stator motor according to claim 2, characterized in that, The micro-swing mechanism (31) includes a Y-axis linear guide (312) fixed on the horizontally placed fixture (30) of the outer shell, a micro-swing plate (313) slidably connected to the Y-axis linear guide (312), a first X-axis linear guide (314) fixedly installed on the micro-swing plate (313), and a micro-swing block (315) slidably connected to the first X-axis linear guide (314). The power correction mechanism (32) includes a clamping cylinder (321) fixedly installed on the horizontally placed fixture (30) of the outer shell, a clamping block (322) fixedly installed on the side of the micro-swing plate (313) and mated to the clamping cylinder (321), and a clamping block (322) fixedly installed on the horizontally placed fixture (30) of the outer shell. The fixture (30) has a mating cylinder (323), a triangular block (324) powered by the mating cylinder (323), and two guide wheels (325) movably connected to the micro-swing block (315). The guide member (311) is fixedly installed on the micro-swing block (315). The clamping cylinder (321) drives the clamping block (322) to clamp and fix the relative position of the micro-swing plate (313) and the Y-axis linear guide (312). The mating cylinder (323) drives the triangular block (324) to insert between the two guide wheels (325) to fix the relative position of the micro-swing block (315) and the first X-axis linear guide (314).

4. The automated stator synchronous heat fitting equipment based on a dual-stator motor according to claim 1, characterized in that, The stator horizontal thrust mechanism (40) includes a second X-axis linear guide (41) mounted on the stator heat-shrinking platform (10), an X-axis push rod motor (42) mounted on the stator heat-shrinking platform (10), and a first horizontal push plate (43) slidably connected to the second X-axis linear guide (41). The first horizontal push plate (43) is poweredly connected to the X-axis push rod motor (42), and the stator fixing fixture (50) is mounted on the first horizontal push plate (43).

5. An automated stator synchronous heat-shrinking device based on a dual-stator motor according to claim 4, characterized in that, The stator fixing fixture (50) includes an X-axis guide frame (51) fixedly mounted on the stator heat-shrinking platform (10), an X-axis transverse push frame (52) connected to the X-axis guide frame (51), a third X-axis linear guide (53) fixedly mounted on the X-axis guide frame (51), a tensioning push rod motor (54) slidably connected to the third X-axis linear guide (53), and a tensioning mechanism (55) fixedly mounted on the X-axis transverse push frame (52) and poweredly connected to the tensioning push rod motor (54). The X-axis transverse push frame (52) is fixedly mounted on the first transverse push plate (43).

6. The automated stator synchronous heat fitting equipment based on a dual-stator motor according to claim 1, characterized in that, The heating element horizontal pushing force mechanism (60) includes a fourth X-axis linear guide rail (61) fixedly mounted on the stator heat jacket platform (10), an X-axis rodless cylinder (62) mounted on the stator heat jacket platform (10), and a second horizontal push plate (63) slidably connected to the fourth X-axis linear guide rail (61). The second horizontal push plate (63) is poweredly connected to the X-axis rodless cylinder (62), and the outer shell heating module (80) mounted on the heating element horizontal pushing force mechanism (60) is mounted on the second horizontal push plate (63).

7. An automated stator synchronous heat-shrinking device based on a dual-stator motor according to claim 6, characterized in that, The outer shell heating module (80) installed on the heating element horizontal pushing force mechanism (60) includes a first heating transformer (81) fixedly installed on the second horizontal push plate (63), a first heat insulation seat (82) installed on the second horizontal push plate (63), and an inner shell heating coil assembly (83) installed on the first heat insulation seat (82). The first heating transformer (81) acts on the inner shell heating coil assembly (83).

8. An automated stator synchronous heat-shrinking device based on a dual-stator motor according to claim 1, characterized in that, The heating element fixing structure (70) includes a profile support frame (71) fixedly installed on the stator heat jacket platform (10) and a second heat insulation seat (72) installed in front of the profile support frame (71). The outer shell heating module (80) installed on the heating element fixing structure (70) includes a second heating transformer (84) fixedly installed on the profile support frame (71) and an outer shell rear heating coil assembly (85) installed in front of the second heat insulation seat (72). The second heating transformer (84) acts on the outer shell rear heating coil assembly (85).

9. An automated stator synchronous heat-shrinking device based on a dual-stator motor according to claim 1, characterized in that, It also includes a workpiece loading platform (12), on which two sets of workpiece conveying lines (121) are provided. One set of workpiece conveying lines (121) is powered to a left stator positioning fixture (122) and a right stator positioning fixture (123). The other set of workpiece conveying lines (121) is powered to a housing horizontal fixing fixture (30). The left stator positioning fixture (122), the right stator positioning fixture (123) and the housing horizontal fixing fixture (30) are moved to a position that can be covered by the movement range of the robot arm (20) through the workpiece conveying component.

10. An automated stator synchronous heat-shrinking device based on a dual-stator motor according to claim 1, characterized in that, It also includes a workpiece unloading platform (13), on which a trolley binding position (131) covering the movement range of the robot (20) and a trolley body (132) docked to the trolley binding position (131) are provided.

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