Hybrid transmission dual-motor assembly device and assembly method

Abstract

The application discloses a hybrid transmission dual-motor assembling device and an assembling method, wherein the device comprises a rack, the rack comprises a workbench horizontally extended, the workbench is provided with a heating area and an assembling area located at one side of the heating area. The device further comprises a heating mechanism, an assembling mechanism and a feeding mechanism. The heating mechanism is movably arranged on the workbench and located in the heating area, the heating mechanism comprises a heating element for heating the motor components arranged in the heating area. The assembling mechanism is arranged in the assembling area, the assembling mechanism comprises a lifting assembling component and a feeding component which is slidably arranged below the lifting assembling component and can slide in the horizontal direction. The feeding mechanism comprises a sliding rail component and a feeding tray which is slidably arranged on the sliding rail component, the sliding rail component is horizontally extended on the workbench and extends from the heating area to the assembling area. The device can realize high-precision and high-efficiency automatic assembling of dual motors.

Description

Technical Field

[0001] This invention relates to the field of motor assembly, and in particular to a dual-motor assembly device and method for a hybrid gearbox. Background Technology

[0002] Hybrid transmissions can adopt a single-motor power system configuration or a dual-motor power system configuration. Deep hybrid systems mostly adopt a dual-motor power system configuration in order to realize all hybrid power functions of the power system, such as series function, parallel function, and series-parallel hybrid function. The parallel shaft arrangement of dual motors is becoming more and more widely used due to its advantages such as short axial distance.

[0003] Currently, under small-batch production conditions, the assembly of motor stators and rotors typically employs simple tooling combined with manual assembly. Existing technologies usually use the following methods:

[0004] 1. Stator assembly: The hybrid gearbox housing and stator are interference-fitted and require heat fitting assembly. The current practice is to heat the housing in an oven and then manually place the motor stator into the housing. Manual handling of the housing can easily cause burns, and the heated housing cools down very quickly, especially in winter. If manual handling is not timely, it is easy for the stator to fail to fit or get stuck halfway through assembly.

[0005] 2. Rotor assembly: Because the rotor assembly contains permanent magnets that generate strong magnetism, the rotor is easily attracted to one side during assembly, leading to misalignment of the stator and rotor. This can easily cause scratches on the inner wall of the stator and the bottom bearing, and poses safety hazards such as pinching fingers. The difficulty is even greater when assembling two motors simultaneously.

[0006] 3. The motor bearing uses a deep groove ball bearing with an interference fit between the inner ring and the motor rotor shaft. During rotor press-fitting, to prevent abnormal bearing stress, the inner ring needs to be supported at the bottom. Due to errors in the housing and bearing clearance, this support height cannot be fixed; otherwise, it may lead to insufficient support for the inner ring or excessive support height, resulting in abnormal bearing stress. Current practices involve adding shims of different thicknesses to the bottom support or using a threaded bottom support, which is then tightened to create different fit heights. Regardless of the method, excessive manual intervention is required, resulting in delays and low assembly efficiency.

[0007] Therefore, the existing technology for manually assembling dual motors in a gearbox suffers from problems such as inconvenience, difficulty, and low efficiency. Summary of the Invention

[0008] The purpose of this invention is to solve the problems of inconvenient assembly, high assembly difficulty, and low assembly efficiency in the manual assembly of dual motors in a gearbox in the prior art.

[0009] To address the aforementioned technical problems, embodiments of the present invention disclose a hybrid gearbox dual-motor assembly device, comprising a frame, a horizontally extending worktable, a heating zone and an assembly zone located on one side of the heating zone, and further comprising a heating mechanism, an assembly mechanism, and a feeding mechanism.

[0010] The heating mechanism is movably mounted on the worktable and located within the heating zone. The heating mechanism includes a heating element and a support component that movably supports the heating element. The heating element includes a heating element that heats a motor component placed within the heating zone, and the heating element is movable relative to the worktable in both the front-to-back and vertical directions on the support component. The assembly mechanism is located within the assembly zone and includes a lifting assembly component and a feeding component located below the lifting assembly component and slidable horizontally. The feeding mechanism includes a slide rail assembly and a feeding tray slidably mounted on the slide rail assembly. The slide rail assembly extends horizontally across the worktable and extends from the heating zone to the assembly zone.

[0011] By adopting the above technical solution and setting up a hybrid transmission dual-motor assembly device, the overall assembly of the dual motors of a hybrid vehicle can be realized. Specifically, a heating zone and an assembly zone are set up on the worktable. A heating mechanism in the heating zone heats the motor components or housings of the dual motors. An assembly mechanism in the assembly zone installs the motor stator and rotor within the motor components or housings of the dual motors. A feeding mechanism is set up between the heating zone and the assembly zone to transport the motor components, housings, stators, or rotors of the dual motors. The device offers high accuracy and stability during stator or rotor assembly, as well as high assembly efficiency. It can simultaneously perform heat-fitting assembly of the dual motors, and the assembly process is relatively simple and convenient. It enables non-contact heat-fitting assembly of the motor stator, ensures the positioning accuracy of the motor rotor assembly, and supports floating adjustment to automatically compensate for housing dimensional tolerances, meeting the requirements for high-precision and high-efficiency automated assembly.

[0012] Furthermore, the heating element in the heating mechanism can heat the motor components or housings of the dual motors. A pair of heating elements are provided, which can directly heat the two housings to be heated on the motor components. The support assembly can adjust the movement of the heating element relative to the worktable in the front-back direction and the height direction. This can adjust the position of the heating element and also allow the heating element to move to the heating position for heating during heating and return to the initial position after heating is completed.

[0013] Furthermore, the feeding tray is used to place the motor components or housing of the dual motors. The slide rail assembly can drive the feeding tray and the motor components to move between the heating zone or the assembly zone. Specifically, in one assembly process, the feeding tray and the motor components on it are transported by the slide rail assembly and positioned in the heating zone for heating. After heating is completed, the heating mechanism is reset, and the slide rail assembly drives the feeding tray and the motor components from the heating zone to the assembly zone and fixes them relatively in the assembly zone. Then, the two stators and two rotors of the dual motors are assembled respectively through the assembly mechanism.

[0014] Furthermore, the lifting assembly assembly is located within the assembly area. After the feeding pallet and its motor components are transported and positioned in the assembly area by the slide rail assembly, the feeding assembly operates to transport the stator. The lifting assembly assembly first installs the stator and then the rotor, thus achieving the overall assembly of the stator and rotor. During the rotor press-fitting process, it can provide positioning support and accurate installation of the rotor bearings, avoiding problems such as insufficient support for the bearing inner ring or excessive support height leading to abnormal bearing stress.

[0015] The present invention also discloses a hybrid gearbox dual-motor assembly device. The supporting components of the heating mechanism include a horizontal slide rail, a vertical slide rail, a vertical bracket, and a transverse bracket. The horizontal slide rail is fixedly mounted on the worktable surface within the heating zone, and its extension direction is perpendicular to the extension direction of the slide rail assembly on the feeding mechanism. The vertical bracket is slidably mounted on the horizontal slide rail. The vertical slide rail extends vertically and is mounted on the vertical bracket. The transverse bracket is slidably mounted on the vertical slide rail. The heating element is fixedly mounted on the transverse bracket.

[0016] It also includes a horizontal drive cylinder and a vertical drive cylinder. The horizontal drive cylinder is set on one side of the horizontal slide rail and fixed on the worktable. The piston movement direction of the horizontal drive cylinder is the same as the extension direction of the horizontal slide rail. The piston push rod of the horizontal drive cylinder is connected to the vertical support. The vertical drive cylinder is set on one side of the vertical slide rail and fixed on the vertical support. The piston movement direction of the vertical drive cylinder is the same as the extension direction of the vertical slide rail. The piston push rod of the vertical drive cylinder is connected to the horizontal support.

[0017] Using the above technical solution, the horizontal drive cylinder and horizontal slide rail can drive the vertical slide rail, vertical support, and horizontal support as a whole to move in the front-to-back direction relative to the worktable surface. This causes the parts of the heating element and the motor components of the dual motors, where the stator is mounted, i.e., the parts to be heated, to coincide in the height direction. Then, the vertical drive cylinder and vertical slide rail drive the horizontal support and heating element to move in the height direction, ultimately allowing the heating element to be fitted inside the motor components of the dual motors. By setting up the horizontal slide rail, vertical slide rail, horizontal drive cylinder, and vertical drive cylinder, the stability and linearity of the heating element during operation are ensured, resulting in good heating performance.

[0018] The present invention also discloses a hybrid gearbox dual-motor assembly device, the support assembly of which includes a horizontal damper and a vertical damper. The horizontal damper is fixedly mounted on the worktable and located at the end of the horizontal slide rail away from the horizontal drive cylinder, and each horizontal damper has a damping plug on the side near the vertical support. The vertical damper is fixedly mounted on the vertical support and located at the end of the vertical slide rail away from the horizontal support, and each vertical damper also has a damping plug on the side near the horizontal support.

[0019] Using the above technical solution, the horizontal damper is used to effectively buffer the moving impact force of the vertical slide rail, vertical support and horizontal support when they move back and forth, and the vertical damper is used to effectively buffer the moving impact force of the horizontal support and heating element when they move in the height direction.

[0020] An embodiment of the present invention also discloses a hybrid gearbox dual-motor assembly device. The slide rail assembly includes a tray slide rail horizontally disposed on a worktable and extending from a heating zone to an assembly zone. A tray drive cylinder is also disclosed, fixedly disposed on the worktable and located on one side of the tray slide rail. The piston movement direction of the tray drive cylinder is the same as the extension direction of the tray slide rail. A feeding tray is slidably disposed on the tray slide rail, and the feeding tray is fixedly connected to the output end of the tray drive cylinder.

[0021] Using the above technical solution, the pallet drive cylinder can drive the feeding pallet to slide on the pallet slide rail, thereby driving the feeding pallet to move and switch between the heating zone and the assembly zone, and has good straightness and stability.

[0022] The present invention also discloses a hybrid gearbox dual-motor assembly device. The output end of the pallet drive cylinder includes a piston magnet disposed inside the pallet drive cylinder and slidably disposed along the piston movement direction of the pallet drive cylinder. A rigid sliding sleeve cooperating with the piston magnet is slidably connected to the outside of the pallet drive cylinder. The rigid sliding sleeve is fixedly disposed at the bottom of the feeding pallet.

[0023] The present invention also discloses a hybrid gearbox dual-motor assembly device, wherein the feeding tray includes a lower tray assembly and an upper tray assembly sleeved on the lower tray assembly, the lower tray assembly and the upper tray assembly are horizontally arranged and slidably mounted on the tray slide rail.

[0024] Multiple sliders are fixedly installed on the side of the lower pallet assembly near the pallet slide rail. The sliders are slidably mounted on the pallet slide rail. Multiple guide rods are provided on the side of the lower pallet assembly near the upper pallet assembly. The guide rods are spaced apart on the periphery of the lower pallet assembly. Two hollow support columns are spaced apart in the middle of the lower pallet assembly.

[0025] The upper pallet assembly is provided with a guide sleeve that coaxially engages with the guide rod. The guide sleeve protrudes from the plane on which the upper pallet assembly is located, and the middle of the upper pallet assembly is provided with a through hole that coaxially engages with the hollow support column. When the upper pallet assembly is fitted onto the lower pallet assembly, the guide sleeve is fitted onto the corresponding guide rod, and the hollow support column passes through the through hole.

[0026] Using the above technical solution, the lower tray assembly is slidably mounted on the tray rail via multiple sliders, making sliding simple and convenient. When the motor component is placed on the upper tray assembly, multiple guide rods can position the motor component. Two hollow support columns are spaced apart in the middle of the lower tray assembly, and the tray assembly itself has through holes coaxially aligned with these hollow support columns. When the lower and upper tray assemblies are transported to the assembly area, the ejector pins on the lifting assembly assembly can pass through the hollow support columns to clamp and assemble the stator and rotor.

[0027] The present invention also discloses a hybrid gearbox dual-motor assembly device, wherein a plurality of spring assemblies are provided between the upper tray assembly and the lower tray assembly. Each spring assembly includes a spring seat and a spring. The spring seat is fixedly disposed on the side of the lower tray assembly near the upper tray assembly, and the spring is sleeved on the spring seat. The end of the spring away from the spring seat abuts against the upper tray assembly.

[0028] By employing the above technical solution, the multiple spring assemblies installed between the upper and lower tray assemblies ensure that the upper tray assembly can float relative to the lower tray assembly during the installation of the stator, rotor, and rotor bearings. This eliminates errors such as motor component and bearing clearance, allowing the hollow support column to fully support the bearing inner ring and preventing abnormal bearing stress. The guide rod and guide sleeve also ensure the stability and straightness of the upper tray assembly during floating.

[0029] The present invention also discloses a hybrid gearbox dual-motor assembly device, wherein a tray damper and a tray proximity switch are provided at both ends of the tray slide rail along its extension direction. The tray damper and the tray proximity switch are symmetrically arranged at both ends of the tray slide rail, and a damping plug is provided on the side of the tray damper near the feeding tray.

[0030] Using the above technical solution, the pallet damper anticipates that when the feeding pallet reaches the heating or assembly zone, it will dampen and reduce the speed of the feeding pallet to avoid excessive impact. A pallet proximity switch detects the position of the feeding pallet for detection and control by the electronic control unit.

[0031] The present invention also discloses a hybrid gearbox dual-motor assembly device, which further includes a positioning device. The positioning device includes a heating positioning device and an assembly positioning device disposed on the worktable. The heating positioning device and the assembly positioning device have the same structure. The heating positioning device is disposed in the heating zone, and the assembly positioning device is disposed in the assembly zone.

[0032] Each of the positioning devices includes a positioning cylinder fixedly mounted on the worktable. The positioning cylinder is provided with a positioning pin guide sleeve on its outside and a sliding thrust piston inside. The upper part of the thrust piston is also provided with a positioning pin that can move along the positioning pin guide sleeve. A first air inlet and a second air inlet are provided at intervals on one side of the positioning cylinder. The lower tray assembly is also provided with a positioning pin hole that matches the positioning pin.

[0033] When air enters through the first air inlet, the air pushes the thrust piston and the positioning pin upward, causing the positioning pin to enter the positioning pin hole; when air enters through the second air inlet, the air pushes the thrust piston and the positioning pin downward, causing the positioning pin to disengage from the positioning pin hole.

[0034] By employing the above technical solution, and by setting up a heating positioning device and an assembly positioning device, the feeding tray and motor components are positioned when they reach the corresponding heating or assembly positions. This ensures the stability of the motor components during heating or assembly, thereby improving the assembly stability and accuracy of the motor components.

[0035] The present invention also discloses a hybrid gearbox dual-motor assembly device. The feeding assembly includes stator feeding assemblies symmetrically distributed on both sides of the lifting assembly assembly and located below the lifting assembly assembly. Each stator feeding assembly includes a stator feeding mechanism and a stator gripping device.

[0036] The stator feeding mechanism includes a feeding slide rail, a feeding drive cylinder, and a stator feeding tray. The feeding slide rail is fixedly mounted on the worktable, and its length direction is the same as that of the worktable. The feeding drive cylinder is parallel to one side of the feeding slide rail, and its extension direction is the same as that of the feeding slide rail. The stator feeding tray is inverted "L" shape. One side of the stator feeding tray is slidably mounted on the feeding slide rail, and the other side is connected to the feeding drive cylinder through a connecting plate. The feeding drive cylinder is equipped with a slidable movable sleeve, which is fixedly connected to the connecting plate.

[0037] The stator feeding tray is equipped with a positioning plate, which is used to place the stator gripping device. The positioning plate is equipped with a circular boss that protrudes from the plane of the stator feeding tray and is adapted to the stator gripping device. A notch is provided on one side of the circular boss. In addition, a feeding tray damper is provided at one end of the feeding slide rail.

[0038] Using the above technical solution, the stator feeding assembly is used for sliding transport of the stator, and the notch on one side of the circular boss is used to avoid the lower ejector pin on the lifting assembly assembly.

[0039] The present invention also discloses a hybrid gearbox dual-motor assembly device. The stator gripping device includes a lead screw, a rotating handle, a housing, a housing cover, an inverted cone, and a gripping unit. The rotating handle is rotatably disposed on the upper part of the lead screw and is held between the housing and the housing cover. The inverted cone is fixedly disposed on the side of the housing away from the rotating handle. The lead screw rotatably passes through the rotating handle, the housing, the housing cover, and the inverted cone in sequence. A stepped groove is formed at the end of the lead screw away from the rotating handle.

[0040] Multiple gripping units are arranged around the circumference of the inverted cone. Each gripping unit has an inclined surface that fits the outer surface of the inverted cone on the side that is in contact with the inverted cone. The bottom end of each gripping unit is engaged in a stepped groove. Multiple annular grooves are provided on the surface of the gripping unit away from the inverted cone, and annular springs are installed in the annular grooves.

[0041] The present invention also discloses a hybrid gearbox dual-motor assembly device, wherein both ends of the lead screw are provided with pin holes. When the rotating handle is rotated in the first direction, the rotating handle drives the lead screw to rotate in the first direction, the stepped groove on the lead screw moves toward the direction close to the inverted cone, and drives multiple gripping units to move toward the direction close to the inverted cone. The side of the multiple gripping units close to the inverted cone opens outward along the circumference of the inverted cone.

[0042] When the handle is rotated in the second direction, the handle drives the lead screw to rotate in the second direction. The stepped groove on the lead screw moves away from the inverted cone and drives multiple gripping units to move away from the inverted cone. The side of the multiple gripping units closest to the inverted cone retracts inward along the circumference of the inverted cone. The first direction is either clockwise or counterclockwise.

[0043] Using the above technical solution, the stator gripping device supports itself on the inner wall of the stator when gripping it, thereby ensuring that the outer wall of the stator fits snugly against the mounting position on the motor components, achieving thermal fitting assembly of the stator. The gripping units are arranged in a petal shape around the inverted cone. When the handle is rotated, driving the lead screw to rotate, the multiple petal-shaped gripping units switch between open and retracted states, thus realizing the gripping or releasing of the stator.

[0044] The present invention also discloses a hybrid gearbox dual-motor assembly device, wherein the lifting assembly component includes a vertical mounting plate and a first lifting device and a second lifting device, as well as a third lifting device and a fourth lifting device respectively disposed on both sides of the vertical mounting plate.

[0045] A vertical mounting plate stands upright in the assembly area and extends through the workbench. The first and third lifting devices are symmetrically arranged on the same side of the vertical mounting plate, and the second and fourth lifting devices are symmetrically arranged on the other side of the vertical mounting plate. The first and second lifting devices work together, and the third and fourth lifting devices work together.

[0046] The above technical solution employs a first and second lifting device that work together to install one of the stators or rotors of the dual motors. A third and fourth lifting device work together to install the other stator or rotor of the dual motors. The first and third lifting devices, located on the same side of the vertical mounting plate, are symmetrically arranged, while the second and fourth lifting devices, located on the opposite side of the vertical mounting plate, are also symmetrically arranged. This allows the first and second, third and fourth lifting devices to operate simultaneously, thereby assembling the stator or rotor at the same time. This ensures the uniformity and accuracy of the stator and rotor assembly of the dual motors and improves installation efficiency.

[0047] The embodiments of the present invention also disclose a hybrid gearbox dual-motor assembly device, wherein the first lifting device includes a first lifting part, a first lifting slide rail assembly, a first sliding part, a first pressure sensor, an upper ejector seat, and an upper ejector.

[0048] The first lifting part is fixedly installed on one side of the vertical mounting plate. The first lifting part is equipped with a first drive motor, a first lifting screw, a first transmission nut and a first output shaft. The first transmission nut is sleeved on the bottom of the first lifting screw. The top of the first lifting screw is connected to the output end of the first drive motor. One end of the first output shaft is connected to the first transmission nut and the other end of the first output shaft is connected to the upper ejector seat. A first pressure sensor is also provided between the upper ejector seat and the first output shaft. The upper ejector seat is fixedly installed on the first sliding part and the upper ejector is fixedly installed on the side of the upper ejector seat away from the first pressure sensor.

[0049] The vertical mounting plate is provided with a first sliding groove opened in the vertical direction. The first lifting slide rail assembly includes two first lifting slide rails provided on both sides of the first sliding groove. The first sliding part is slidably provided on the first lifting slide rail assembly.

[0050] The above technical solution employs a first drive motor, a first lifting screw, a first transmission nut, and a first output shaft within the first lifting section to form a screw sliding mechanism, thereby controlling the upper ejector pin's vertical movement. A first pressure sensor detects and controls the force acting on the upper ejector pin, further controlling the force on the stator. Furthermore, the first lifting slide rail assembly ensures good stability and straightness of the upper ejector pin during vertical movement, thus guaranteeing coaxiality during motor assembly, preventing eccentricity, and ensuring product installation quality.

[0051] The present invention also discloses a hybrid transmission dual-motor assembly device. The second lifting device includes a second lifting part, a second lifting slide rail assembly, a second sliding part, a second pressure sensor, a lower ejector seat, and a lower ejector pin. The second lifting part is fixedly mounted on the first sliding part via an upper ejector seat, which passes through a first sliding groove. The second lifting part houses a second drive motor, a second lifting screw, a second transmission nut, and a second output shaft. The second transmission nut is screwed onto the second lifting screw, which is connected to the output end of the second drive motor. The second transmission nut is connected to the second output shaft. A lower ejector seat is located at one end of the second output shaft. A second pressure sensor is located between the lower ejector seat and the second output shaft. The lower ejector seat is fixedly mounted on the second sliding part, and a lower ejector pin is mounted on the lower ejector seat.

[0052] Furthermore, the vertical mounting plate is provided with a second sliding groove opened in the vertical direction, and the second lifting slide rail assembly includes two second lifting slide rails provided on both sides of the second sliding groove, and the second sliding part is slidably provided on the second lifting slide rail assembly.

[0053] Using the above technical solution, the second lifting section is equipped with a second drive motor, a second lifting screw, a second transmission nut, and a second output shaft to form a screw sliding mechanism, thereby controlling the lower ejector pin's vertical movement. A second pressure sensor detects and controls the force on the lower ejector pin, further controlling the force on the stator. The second lifting slide rail assembly ensures good stability and straightness of the lower ejector pin during vertical movement, thus guaranteeing coaxiality during motor assembly, avoiding eccentricity, and ensuring product installation quality. Four lifting devices enable the clamping and assembly of the dual-motor assembly.

[0054] Furthermore, since the second lifting part of the second lifting device is located on the first sliding part of the first lifting device, when the first drive motor rotates, it will drive the upper and lower ejector pins to move simultaneously, and the distance between the upper and lower ejector pins will not change. When the second drive motor rotates, it will drive the lower ejector pin seat and the lower ejector pin to move. The distance between the upper and lower ejector pins is adjusted only by the movement of the lower ejector pin, thereby achieving the clamping or releasing of the stator or rotor.

[0055] The present invention also discloses a hybrid gearbox dual-motor assembly device, wherein the worktable surface is provided with two worktable ejector pin holes penetrating the worktable surface at the assembly area. When the feeding tray is positioned in the assembly area, the two worktable ejector pin holes coincide with two hollow support columns on the feeding tray, and two lower ejector pins on the second lifting part and the fourth lifting part of the fourth lifting device sequentially penetrate the worktable ejector pin holes and the hollow support columns, and the two lower ejector pins can move up and down along the axial direction of the hollow support columns. Furthermore, when the feeding tray is positioned in the assembly area, the two hollow support columns support the inner ring of the rotor bearing, thereby preventing abnormal stress on the rotor bearing during installation.

[0056] Using the above technical solution, the two lower ejector pins pass through the ejector pin holes of the worktable and the hollow support column in sequence and hold the stator or rotor. Then, the first drive motor or the third drive motor rotates, driving the upper ejector pin and the lower ejector pin to move simultaneously, thereby assembling the stator or rotor into the motor component.

[0057] The present invention also discloses a hybrid transmission dual-motor assembly device, which further includes a high-voltage control cabinet located at the back of the frame and used for power supply, and a control panel disposed on one side of the frame. The control panel is used to control the operation of the heating mechanism, assembly mechanism, and feeding mechanism components in the hybrid transmission dual-motor assembly device.

[0058] The present invention also discloses an assembly method for a dual-motor hybrid transmission, applicable to the dual-motor hybrid transmission assembly device described in any of the above-mentioned embodiments, wherein the assembly method includes:

[0059] S1. Place the motor component on the feeding tray, and use the control panel to control the slide rail assembly to transport the feeding tray and motor component to the heating zone, and use the positioning device in the heating zone to fix the feeding tray and motor component relatively.

[0060] S2. Control the heating component to move relative to the support component and align the heating element with the housing to be heated on the motor component through the control panel. When the heating element is inside the housing to be heated, control the heating element to heat the housing through the control panel.

[0061] S3. Control the heating component to reset via the control panel, and control the slide rail assembly via the control panel to transport the feeding tray and motor components to the assembly area;

[0062] S4. Control the feeding assembly to transport the stator and the stator gripping device through the control panel, align the stator with the heating housing on the motor component, and then assemble the stator through the lifting assembly assembly.

[0063] S5. Assemble the rotor by lifting and assembling the assembly components.

[0064] The beneficial effects of this invention are:

[0065] This invention provides a dual-motor assembly device for a hybrid gearbox, including a frame and a worktable. The worktable has a heating zone and an assembly zone located on one side of the heating zone. It also includes a heating mechanism, an assembly mechanism, and a feeding mechanism. The heating mechanism in the heating zone heats the motor components or housings of the dual motors. The assembly mechanism in the assembly zone installs the motor stator and rotor within the motor components or housings. The feeding mechanism between the heating zone and the assembly zone facilitates the transport of the motor components, housings, stators, or rotors of the dual motors. This device offers high accuracy and stability during stator or rotor assembly, as well as high assembly efficiency. It can simultaneously perform heat-fitting assembly of both motors, and the assembly process is simple and convenient. It enables non-contact heat-fitting assembly of the motor stator, ensures accurate rotor assembly positioning, and supports floating adjustment to automatically compensate for housing dimensional tolerances, meeting the requirements for high-precision and high-efficiency automated assembly. Attached Figure Description

[0066] Figure 1 This is a schematic diagram of the overall structure of the hybrid gearbox dual-motor assembly device provided in Embodiment 1 of the present invention;

[0067] Figure 2 This is a schematic diagram of the heating mechanism of the hybrid gearbox dual-motor assembly device provided in Embodiment 1 of the present invention;

[0068] Figure 3 This is a schematic diagram of the heating mechanism on the other side of the hybrid gearbox dual-motor assembly device provided in Embodiment 1 of the present invention;

[0069] Figure 4 This is a schematic diagram of the feeding mechanism of the hybrid gearbox dual-motor assembly device provided in Embodiment 1 of the present invention;

[0070] Figure 5 This is a schematic diagram of the bottom structure of the feeding mechanism of the hybrid gearbox dual-motor assembly device provided in Embodiment 1 of the present invention;

[0071] Figure 6 This is a schematic diagram of the feeding tray of the hybrid gearbox dual-motor assembly device provided in Embodiment 1 of the present invention;

[0072] Figure 7 This is a top view of the feeding tray of the hybrid gearbox dual-motor assembly device provided in Embodiment 1 of the present invention;

[0073] Figure 8 This is a cross-sectional view of the feeding tray of the hybrid gearbox dual-motor assembly device provided in Embodiment 1 of the present invention in the heating zone;

[0074] Figure 9This is a cross-sectional view of the feeding tray and tray drive cylinder of the hybrid gearbox dual-motor assembly device provided in Embodiment 1 of the present invention.

[0075] Figure 10 This is a schematic diagram of the stator feeding assembly of the hybrid gearbox dual-motor assembly device provided in Embodiment 1 of the present invention;

[0076] Figure 11 This is a schematic diagram of the stator gripping device of the hybrid gearbox dual-motor assembly device provided in Embodiment 1 of the present invention;

[0077] Figure 12 This is a cross-sectional view of the stator gripping device of the hybrid gearbox dual-motor assembly device provided in Embodiment 1 of the present invention;

[0078] Figure 13 This is a front structural diagram of the lifting assembly assembly component of the hybrid gearbox dual-motor assembly device provided in Embodiment 1 of the present invention;

[0079] Figure 14 This is a schematic diagram of the reverse side of the lifting assembly assembly component of the hybrid gearbox dual-motor assembly device provided in Embodiment 1 of the present invention;

[0080] Figure 15 This is a schematic diagram of the hybrid gearbox dual-motor assembly device provided in Embodiment 1 of the present invention during rotor assembly;

[0081] Figures 16-20 This is an assembly diagram showing the assembly steps in the assembly method for the dual motors of the hybrid gearbox provided in Embodiment 2 of the present invention.

[0082] Figure 21 This is a flowchart of the assembly method of the dual motors of the hybrid gearbox provided in Embodiment 2 of the present invention.

[0083] Explanation of reference numerals in the attached figures:

[0084] 1. Frame; 2. Feeding tray; 3. Heating mechanism; 4. Feeding assembly; 5. Power control cabinet; 6. First lifting device; 7. Second lifting device; 8. Third lifting device; 9. Fourth lifting device; 10. Control panel; 11. Heating positioning device; 12. Assembly positioning device; 13. Worktable; 14. Rotor; 15. Rotor bearing;

[0085] 201. Pallet slide rail; 202. Slider; 203. Upper pallet assembly; 204. Lower pallet assembly; 205. Guide sleeve; 206. Guide rod; 207. Spring; 208. Spring seat; 209. Pallet drive cylinder; 210. Rigid sliding sleeve; 211. Piston magnet; 212. Hollow support column; 213. Through hole; 214. Pallet damper; 215. Pallet proximity switch;

[0086] 301. Horizontal drive cylinder; 302. Vertical drive cylinder; 303. Horizontal slide rail; 304. Vertical support; 305. Heating element; 306. Horizontal support; 307. Vertical slide rail; 308. Vertical damper; 309. Horizontal damper;

[0087] 401. Stator feed tray; 402. Feed drive cylinder; 403. Movable sleeve; 404. Connecting plate; 405. Feed slide rail; 406. Positioning plate; 407. Feed tray damper; 408. Notch;

[0088] 501. Stator gripping device; 502. Lead screw; 503. Rotating handle; 504. Housing; 505. Housing cover; 506. Inverted cone; 507. Gripping unit; 508. Stepped groove; 509. Ring spring; 510. Ejector pin hole; 511. Stator;

[0089] 601. Vertical mounting plate; 602. First lifting part; 603. First output shaft; 604. First sliding part; 605. First pressure sensor; 606. Upper ejector pin seat; 607. Upper ejector pin; 608. First sliding groove; 609. First lifting slide rail;

[0090] 701. Second lifting part; 702. Second sliding part; 703. Lower ejector pin seat; 704. Lower ejector pin; 705. Second pressure sensor; 706. Second sliding groove; 707. Second lifting slide rail; 708. Second output shaft;

[0091] 1201, Positioning cylinder; 1202, Thrust piston; 1203, Positioning pin; 1204, Positioning pin guide sleeve; 1205, First air inlet; 1206, Second air inlet; 1207, Positioning pin hole; 1301, Worktable ejector pin hole. Detailed Implementation

[0092] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention is presented in conjunction with preferred embodiments, this does not mean that the features of the invention are limited to these embodiments. On the contrary, the purpose of describing the invention in conjunction with embodiments is to cover other options or modifications that may be derived based on the claims of the present invention. To provide a deep understanding of the invention, many specific details will be included in the following description. The invention may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of the invention, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0093] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0094] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of the invention is usually placed in during use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0095] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0096] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0097] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0098] Example 1

[0099] As a preferred embodiment of the present invention, this embodiment discloses a hybrid gearbox dual-motor assembly device, such as... Figure 1 As shown, the machine includes a frame 1, which includes a horizontally extending worktable 13. The worktable 13 has a heating zone and an assembly zone located on one side of the heating zone. It also includes a heating mechanism 3, an assembly mechanism, and a feeding mechanism.

[0100] Specifically, such as Figure 1 As shown, a transport area is provided on the workbench 13, a heating area is on the left end of the workbench 13, an assembly area is on the right end, and a frame baffle is provided around the frame 1. The transport area, heating area and assembly area are all located in the working area surrounded by the frame baffle. The workbench 13 is a table surface formed on the frame 1.

[0101] The heating mechanism 3 is movably mounted on the worktable 13 and located within the heating zone. The heating mechanism 3 includes a heating component and a support component that movably supports the heating component. The heating component includes a heating element 305 that heats a motor component placed within the heating zone, and the heating component is movable relative to the worktable 13 in both the front-to-back and vertical directions on the support component. The assembly mechanism is located within the assembly zone and includes a lifting assembly component and a feeding component 4 located below the lifting assembly component and slidable horizontally. The feeding mechanism includes a slide rail assembly and a feeding tray 2 slidably mounted on the slide rail assembly. The slide rail assembly extends horizontally on the worktable 13 and extends from the heating zone to the assembly zone.

[0102] Specifically, in this embodiment, the support assembly not only supports the heating element 305, but also controls the movement of the heating element 305 in the horizontal and vertical directions to accommodate adjustments to the motor components and the parts to be heated. The heating element 305 can be a common metal heating wire, metal heating tube, etc., and can be heated by induction heating.

[0103] This embodiment is a dual-motor assembly device for a hybrid gearbox, so a pair of heating elements 305 are provided. However, those skilled in the art will understand that this embodiment is also applicable to the assembly of a single motor. For example, only one heating element 305 may be provided, or two motors may be assembled at one time. This embodiment does not make any specific limitations on this.

[0104] More specifically, in this embodiment, the moving or sliding driving element can be a common driving cylinder, driving motor, etc., and the moving or sliding method can be, for example, sliding by slider 202, piston sliding, slide rail sliding, guide rail sliding, etc.

[0105] More specifically, in this embodiment, four lifting assembly assemblies are provided to correspond to the assembly of the dual motors. The feeding assembly 4 located below the lifting assembly assemblies is mainly used for sliding and transporting the stator 511 in the horizontal direction.

[0106] More specifically, in this embodiment, by setting up a hybrid transmission dual-motor assembly device, the overall assembly of the dual motors of the hybrid vehicle can be realized. Specifically, a heating zone and an assembly zone are set on the worktable 13. A heating mechanism 3 is set up in the heating zone to heat the motor components or housings of the dual motors. An assembly mechanism is set up in the assembly zone to install the motor stator 511 and rotor 14 in the motor components or housings of the dual motors. A feeding mechanism is set up between the heating zone and the assembly zone to realize the transportation of the motor components or housings of the dual motors. The transportation is linear, which has high accuracy and stability during stator or rotor assembly and high assembly efficiency. It can simultaneously perform heat fitting assembly of the dual motors, and the assembly is relatively simple and convenient. It can realize non-contact heat fitting assembly of the motor stator 511, while ensuring the assembly positioning accuracy of the motor rotor 14, supporting floating adjustment and automatic compensation of housing size tolerances, etc., to meet the needs of high-precision and high-efficiency automated assembly.

[0107] Furthermore, the heating element 305 in the heating mechanism 3 can heat the motor components or housings of the dual motors. A pair of heating elements 305 are provided, which can directly heat the two housings to be heated on the motor components. The support assembly can adjust the movement of the heating element 305 relative to the worktable 13 in the front-back direction and the height direction. This can adjust the position of the heating element 305, and also allow the heating element 305 to move to the heating position for heating during heating, and return to the initial position after heating is completed.

[0108] Furthermore, the feeding tray 2 is used to place the motor components or housing of the dual motors. The slide rail assembly can drive the feeding tray 2 and the motor components to move between the heating zone or the assembly zone. Specifically, in one assembly process, the feeding tray 2 and the motor components on it are transported by the slide rail assembly and positioned in the heating zone for heating. After heating is completed, the heating mechanism 3 is reset. The slide rail assembly drives the feeding tray 2 and the motor components to move from the heating zone to the assembly zone and fix them relatively in the assembly zone. Then, the two stators 511 and two rotors 14 of the dual motors are assembled by the assembly mechanism.

[0109] Furthermore, the lifting assembly assembly is located within the assembly area. After the feeding pallet 2 and its motor components are transported and positioned in the assembly area by the slide rail assembly, the feeding assembly 4 operates and transports the stator 511. The lifting assembly assembly first installs the stator 511, and then installs the rotor 14, thereby achieving the overall assembly of the stator 511 and the rotor 14. During the press-fitting process of the rotor 14, the rotor bearing 15 can be positioned, supported, and accurately installed, avoiding problems such as insufficient support for the inner ring of the bearing or excessive support height leading to abnormal bearing stress.

[0110] It should be noted that in this embodiment, the specific structure of the hybrid gearbox dual motor assembly device is explained according to the order of the corresponding mechanisms used in the assembly steps of the dual motors. That is to say, this embodiment provides supplementary explanations according to the steps of motor heating, transportation, and assembly. Specifically, in this embodiment, the heating mechanism 3, the feeding mechanism, and the assembly mechanism are explained in sequence.

[0111] This embodiment also discloses a hybrid gearbox dual-motor assembly device, such as... Figure 2 and Figure 3 As shown, the support assembly of the heating mechanism 3 includes a horizontal slide rail 303, a vertical slide rail 307, a vertical support 304, and a horizontal support 306. The horizontal slide rail 303 is fixedly mounted on the worktable 13 and located within the heating zone. The extension direction of the horizontal slide rail 303 is perpendicular to the extension direction of the slide rail assembly on the feeding mechanism. The vertical support 304 is slidably mounted on the horizontal slide rail 303. The vertical slide rail 307 extends vertically and is mounted on the vertical support 304. The horizontal support 306 is slidably mounted on the vertical slide rail 307. The heating element 305 is fixedly mounted on the horizontal support 306.

[0112] It also includes a horizontal drive cylinder 301 and a vertical drive cylinder 302. The horizontal drive cylinder 301 is disposed on one side of the horizontal slide rail 303 and fixedly disposed on the worktable 13. The piston movement direction of the horizontal drive cylinder 301 is the same as the extension direction of the horizontal slide rail 303, and the piston push rod of the horizontal drive cylinder 301 is connected to the vertical support 304. The vertical drive cylinder 302 is disposed on one side of the vertical slide rail 307 and fixedly disposed on the vertical support 304. The piston movement direction of the vertical drive cylinder 302 is the same as the extension direction of the vertical slide rail 307, and the piston push rod of the vertical drive cylinder 302 is connected to the horizontal support 306.

[0113] Specifically, in this embodiment, such as Figure 2 and Figure 3 As shown, two horizontal slide rails 303 and two vertical slide rails 307 are preferably provided, so that the vertical support 304 and the horizontal support 306 have good straightness and stability during sliding. A pair of heating elements 305 are also provided and spaced apart, corresponding to the two stator 511 mounting holes on the dual motors. The heating elements 305 are cylindrical, which can achieve good heating effect on the cylindrical stator 511 mounting holes, and the heating is uniform and fast.

[0114] More specifically, in this embodiment, the extension direction of the horizontal slide rail 303 is perpendicular to the extension direction of the vertical slide rail 307, and the heating element 305 can move relatively in the horizontal and vertical directions. That is, the heating element 305 has degrees of freedom in both the vertical and height directions. By adjustment, a pair of heating elements 305 and the two stator 511 mounting holes on the dual motors correspond to each other.

[0115] More specifically, in this embodiment, the horizontal drive cylinder 301 and the horizontal slide rail 303 can drive the vertical slide rail 307, the vertical support 304, and the horizontal support 306 to move relative to the worktable 13 in the front-to-back direction, so that the heating element 305 and the part on the motor component of the dual motors where the stator 511 is mounted, i.e., the part to be heated, coincide in the height direction. Then, the vertical drive cylinder 302 and the vertical slide rail 307 drive the horizontal support 306 and the heating element 305 to move in the height direction, so that the heating element 305 is finally fitted into the motor component of the dual motors. By setting the horizontal slide rail 303, the vertical slide rail 307, the horizontal drive cylinder 301, and the vertical drive cylinder 302 for horizontal or linear motion, the stability and linearity of the heating element 305 during operation are ensured, resulting in good heating performance.

[0116] This embodiment also discloses a hybrid gearbox dual-motor assembly device, the support assembly of which includes a horizontal damper 309 and a vertical damper 308. The horizontal damper 309 is fixedly mounted on the worktable 13 and located at the end of the horizontal slide rail 303 away from the horizontal drive cylinder 301. Each horizontal damper 309 has a damping plug on the side near the vertical support 304. The vertical damper 308 is fixedly mounted on the vertical support 304 and located at the end of the vertical slide rail 307 away from the horizontal support 306. Each vertical damper 308 also has a damping plug on the side near the horizontal support 306.

[0117] Specifically, in this embodiment, a pair of horizontal dampers 309 and vertical dampers 308 are provided, and the structures of horizontal dampers 309 and vertical dampers 308 are the same, both including damping components and damping plugs protruding from one side of the damping body. The damping components are provided with elastic components such as springs 207, so as to buffer the corresponding moving impact force through the elastic deformation of the elastic components.

[0118] More specifically, the horizontal damper 309 is used to effectively buffer the moving impact force of the vertical slide rail 307, the vertical support 304 and the horizontal support 306 when they move back and forth, and the vertical damper 308 is used to effectively buffer the moving impact force of the horizontal support 306 and the heating element 305 when they move in the height direction.

[0119] The specific structure of the slide rail assembly is further explained in detail. The slide rail assembly corresponds to the figure in the instruction manual. Figures 4-9 .

[0120] This embodiment also discloses a hybrid gearbox dual-motor assembly device, such as... Figure 1 and Figure 4 ,as well as Figures 5-9 As shown, the slide rail assembly includes a pallet slide rail 201 horizontally mounted on the worktable 13 and extending from the heating zone to the assembly zone. It also includes a pallet drive cylinder 209, which is fixedly mounted on the worktable 13 and located on one side of the pallet slide rail 201. The piston movement direction of the pallet drive cylinder 209 is the same as the extending direction of the pallet slide rail 201. A feeding pallet 2 is slidably mounted on the pallet slide rail 201, and the feeding pallet 2 is fixedly connected to the output end of the pallet drive cylinder 209.

[0121] Specifically, in this embodiment, two tray slide rails 201 are arranged parallel and spaced apart, and the tray drive cylinder 209 is fixedly mounted on the worktable surface 13 by means of components such as angle iron or bolts. The piston movement direction of the tray drive cylinder 209 is the same as the extension direction of the tray slide rail 201, so that the tray drive cylinder 209 can drive the feeding tray 2 to slide on the tray slide rail 201, thereby driving the feeding tray 2 to move and switch between the heating zone and the assembly zone, and has good straightness and stability.

[0122] More specifically, in this embodiment, both tray slide rails 201 have sliding holes for sliding and positioning.

[0123] This embodiment also discloses a hybrid gearbox dual-motor assembly device, such as... Figure 9 As shown, the output end of the pallet drive cylinder 209 includes a piston magnet 211 disposed inside the pallet drive cylinder 209 and slidably disposed along the piston movement direction of the pallet drive cylinder 209. A rigid sliding sleeve 210 cooperating with the piston magnet 211 is slidably connected to the outside of the pallet drive cylinder 209. The rigid sliding sleeve 210 is fixedly disposed at the bottom of the feeding pallet 2.

[0124] Specifically, in this embodiment, the actual movement of the piston magnet 211 within the tray drive cylinder 209 will be described:

[0125] like Figure 1 and Figure 4As shown, the tray drive cylinder 209 is arranged horizontally along the worktable surface 13. When air enters from the left side of the tray drive cylinder 209, the air pushes the piston magnet 211 and the feeding tray 2 to move to the right, that is, at this time, the tray drive cylinder 209 drives the feeding tray 2 to move from the heating area to the assembly area. When air enters from the right side of the tray drive cylinder 209, the air pushes the piston magnet 211 and the feeding tray 2 to the left, that is, at this time, the tray drive cylinder 209 drives the feeding tray 2 to move from the assembly area to the heating area. It should be noted that in this embodiment, the movement mode of the other cylinders of the hybrid gearbox dual-motor assembly device and the driving mode of the tray drive cylinder 209 can be the same or different. This embodiment does not limit this to a single mode.

[0126] This embodiment also discloses a hybrid gearbox dual-motor assembly device, such as... Figure 5 As shown, the feeding tray 2 includes a lower tray assembly 204 and an upper tray assembly 203 sleeved on the lower tray assembly 204. The lower tray assembly 204 and the upper tray assembly 203 are arranged horizontally and slidably mounted on the tray slide rail 201.

[0127] Multiple sliders 202 are fixedly installed on the side of the lower pallet assembly 204 near the pallet slide rail 201. The multiple sliders 202 are slidably installed on the pallet slide rail 201. Multiple guide rods 206 are provided on the side of the lower pallet assembly 204 near the upper pallet assembly 203. The multiple guide rods 206 are spaced apart on the periphery of the lower pallet assembly 204. Two hollow support columns 212 are spaced apart in the middle of the lower pallet assembly 204.

[0128] Specifically, in this embodiment, the lower pallet assembly 204 is directly slidably connected to the pallet slide rail 201, and the movement of the lower pallet assembly 204 drives the entire feeding pallet 2 to move. Furthermore, the number of sliders 202 on the side of the lower pallet assembly 204 closest to the pallet slide rail 201 can be 2, 3, 4, or other quantities, and the number of guide rods 206 can also be 2, 3, 4, or other quantities; this embodiment does not impose specific limitations on these.

[0129] The upper pallet assembly 203 is provided with a guide sleeve 205 that coaxially engages with the guide rod 206. The guide sleeve 205 protrudes from the plane on which the upper pallet assembly 203 is located, and the middle part of the upper pallet assembly 203 is provided with a through hole 213 that coaxially engages with the hollow support column 212. When the upper pallet assembly 203 is fitted onto the lower pallet assembly 204, the guide sleeve 205 is fitted onto the corresponding guide rod 206, and the hollow support column 212 passes through the through hole 213.

[0130] It should be noted that in this embodiment, the hollow support column 212 in the middle of the lower tray assembly 204 and the through hole 213 in the upper tray assembly 203 are coaxially engaged to ensure that when assembling the stator 511 and the rotor 14, the pin on the lifting assembly assembly can pass through the hollow support column 212 to clamp and assemble the stator 511 and the rotor 14. It should also be noted that during the assembly of the stator 511 and the rotor 14, the hollow support column 212 also supports the rotor bearing 15 and cooperates with the upper tray assembly 203, the lower tray assembly 204 and the spring 207 between them to provide floating support for the rotor bearing 15, avoiding problems such as insufficient support for the inner ring of the bearing or abnormal stress on the bearing due to excessive support height. The lifting assembly assembly will be explained in detail later and will not be repeated here.

[0131] Using the above technical solution, the lower tray assembly 204 is slidably mounted on the tray slide rail 201 via multiple sliders 202, making sliding simple and convenient. When the motor component is placed on the upper tray assembly 203, multiple guide rods 206 can position the motor component. Two hollow support columns 212 are spaced apart in the middle of the lower tray assembly 204, and the middle of the tray assembly is provided with a through hole 213 that coaxially engages with the hollow support columns 212. When the lower tray assembly 204 and the upper tray assembly 203 are transported to the assembly area, the ejector pins on the lifting assembly assembly can pass through the hollow support columns 212 to clamp and assemble the stator 511 and the rotor 14.

[0132] The embodiment of this invention also discloses a hybrid gearbox dual-motor assembly device. A plurality of spring 207 assemblies are provided between the upper tray assembly 203 and the lower tray assembly 204. Each spring 207 assembly includes a spring seat 208 and a spring 207. The spring seat 208 is fixedly disposed on the side of the lower tray assembly 204 near the upper tray assembly 203. The spring 207 is sleeved on the spring seat 208, and the end of the spring 207 away from the spring seat 208 abuts against the upper tray assembly 203.

[0133] Specifically, in this embodiment, the multiple springs 207 assembly disposed between the upper tray assembly 203 and the lower tray assembly 204 ensure that the upper tray assembly 203 can float relative to the lower tray assembly 204 when the stator 511, rotor 14, and rotor bearing 15 are installed. This eliminates errors such as motor component and bearing clearance, thereby allowing the hollow support column 212 to fully support the inner ring of the bearing and preventing abnormal bearing stress. The guide rod 206 and guide sleeve 205 also ensure the stability and straightness of the upper tray assembly 203 when it floats.

[0134] More specifically, in this embodiment, the spring 207 can be a common helical spring 207, and the spring seat 208 is preferably disposed on the lower tray assembly 204.

[0135] This embodiment also discloses a hybrid gearbox dual-motor assembly device, wherein a tray damper 214 and a tray proximity switch 215 are provided at both ends of the tray slide rail 201 in the extension direction. The tray damper 214 and the tray proximity switch 215 are symmetrically arranged at both ends of the tray slide rail 201, and a damping plug is provided on the side of the tray damper 214 near the feeding tray 2.

[0136] Specifically, in this embodiment, the pallet proximity switch 215 can be a common sensor, such as an infrared sensor. When the pallet proximity switch 215 detects that the pallet is approaching, it transmits the corresponding information to the control panel 10. The control panel 10 controls the feeding pallet 2 to decelerate. When the feeding pallet 2 contacts the pallet damper 214, it performs secondary damping deceleration, thereby achieving deceleration and positioning of the feeding pallet 2.

[0137] More specifically, in this embodiment, when the feeding tray 2 is expected to reach the heating zone or assembly zone, the tray damper 214 dampens and slows down the feeding tray 2 to avoid excessive impact. The tray proximity switch 215 detects the position of the feeding tray 2 for detection and control by the electronic control unit.

[0138] The embodiment of this invention also discloses a hybrid gearbox dual-motor assembly device, which further includes a positioning device. The positioning device includes a heating positioning device 11 and an assembly positioning device 12 disposed on a worktable 13. The heating positioning device 11 and the assembly positioning device 12 have the same structure. The heating positioning device 11 is disposed in the heating zone, and the assembly positioning device 12 is disposed in the assembly zone.

[0139] Specifically, such as Figure 8 As shown, any one of the positioning devices includes a positioning cylinder 1201 fixedly mounted on the worktable 13. The positioning cylinder 1201 is provided with a positioning pin guide sleeve 1204 on its outside. The positioning cylinder 1201 is provided with a slidable thrust piston 1202. The upper part of the thrust piston 1202 is also provided with a positioning pin 1203 that can move along the positioning pin guide sleeve 1204. A first air inlet 1205 and a second air inlet 1206 are provided at intervals on one side of the positioning cylinder 1201. The lower tray assembly 204 is also provided with a positioning pin hole 1207 that is adapted to the positioning pin 1203.

[0140] When air enters through the first air inlet 1205, the air intake pushes the thrust piston 1202 and the positioning pin 1203 upward, causing the positioning pin 1203 to enter the positioning pin hole 1207; when air enters through the second air inlet 1206, the air intake pushes the thrust piston 1202 and the positioning pin 1203 downward, causing the positioning pin 1203 to disengage from the positioning pin hole 1207.

[0141] The following explanation will be based on the example of the feeding pallet 2 transporting the motor components to the heating zone and then positioning the feeding pallet 2 using the heating positioning device 11 within the heating zone:

[0142] When the feeding tray 2 transports the motor component to the heating zone, the tray proximity switch 215 detects the feeding tray 2 and decelerates it through the tray damper 214. The feeding tray 2 then reaches the predetermined heating position, and the positioning pin hole 1207 on the lower tray assembly 204 aligns with the heating positioning device 11. At this time, air enters through the first air inlet 1205, which pushes the thrust piston 1202 and the positioning pin 1203 upward, causing the positioning pin 1203 to enter the positioning pin hole 1207. This fixes the feeding tray 2 and the motor component relatively in the heating zone, and then drives the heating element 305 to position and heat. After heating is completed, air enters through the second air inlet 1206 on the heating positioning device 11, which pushes the thrust piston 1202 and the positioning pin 1203 downward, causing the positioning pin 1203 to disengage from the positioning pin hole 1207. At this time, the feeding tray 2 and the motor component can slide relative to the slide rail assembly and slide on the slide rail assembly to the assembly area for assembly and positioning.

[0143] More specifically, in this embodiment, by setting up a heating positioning device 11 and an assembly positioning device 12, the feeding tray 2 and the motor component are positioned when they reach the corresponding heating or assembly positions. This ensures the stability of the motor component during heating or assembly, thereby improving the assembly stability and accuracy of the motor component.

[0144] This embodiment also discloses a hybrid gearbox dual-motor assembly device, such as... Figure 1 and Figure 10 As shown, the feeding assembly 4 includes stator 511 feeding assemblies 4 symmetrically distributed on both sides of the lifting assembly assembly and located below the lifting assembly assembly. Each stator 511 feeding assembly 4 includes a stator 511 feeding mechanism and a stator gripping device 501.

[0145] The stator 511 feeding mechanism includes a feeding slide rail 405, a feeding drive cylinder 402, and a stator feeding tray 401. The feeding slide rail 405 is fixedly mounted on the worktable 13, and the length direction of the feeding slide rail 405 is the same as the length direction of the worktable 13. The feeding drive cylinder 402 is parallel to one side of the feeding slide rail 405, and the extension direction of the feeding drive cylinder 402 is the same as the extension direction of the feeding slide rail 405. The stator feeding tray 401 is inverted "L" shape. One side of the stator feeding tray 401 is slidably mounted on the feeding slide rail 405, and the other side is connected to the feeding drive cylinder 402 through a connecting plate 404. The feeding drive cylinder 402 is provided with a slidable movable sleeve 403, and the movable sleeve 403 is fixedly connected to the connecting plate 404.

[0146] A positioning plate 406 is provided on the stator feeding tray 401. The positioning plate 406 is used to place the stator gripping device 501. A circular boss is provided on the positioning plate 406. The circular boss protrudes from the plane where the stator feeding tray 401 is located and is adapted to the stator gripping device 501. A notch 408 is provided on one side of the circular boss. A feeding tray damper 407 is also provided at one end of the feeding slide rail 405.

[0147] Specifically, in this embodiment, the stator feeding tray 401 is as follows: Figure 10 The feed slide rail 405 is slidably arranged in an inverted "L" shape. There are two feed slide rails 405, which are fixedly mounted on a slide plate. The slide plate is upright on the worktable 13. The length of the feed slide rail 405 is less than the length of the slide rail assembly. The feed slide rail 405 can drive the stator feed tray 401 to slide within a small range.

[0148] More specifically, in this embodiment, such as Figure 10 As shown, the connecting plate 404 for connecting the feeding drive cylinder 402 and the slide plate is L-shaped, and the slide plate also has multiple connecting holes. The connecting plate 404 can also be set as an angle iron. Furthermore, a feeding tray damper 407 is also provided in the stator 511 feeding mechanism to buffer and position the stator feeding tray 401. The stator 511 feeding assembly 4 is used for sliding transport of the stator 511, and the notch 408 on one side of the circular boss is used to avoid the lower ejector pin 704 on the lifting assembly assembly.

[0149] It should be noted that in this embodiment, the positioning plate 406 provided on the stator feeding tray 401 does not serve to assemble the stator gripping device 501, but is only used to place the stator gripping device 501 and the stator 511. For example, before assembly, the stator 511 is placed on the circular boss of the stator feeding tray 401, and then the stator gripping device 501 is placed inside the stator 511 so that the stator gripping device 501 and the stator 511 are relatively fixed.

[0150] This embodiment also discloses a hybrid gearbox dual-motor assembly device, such as... Figure 11 and Figure 12As shown, the stator gripping device 501 includes a lead screw 502, a rotating handle 503, a housing 504, a housing cover 505, an inverted cone 506, and a gripping unit 507. The rotating handle 503 is rotatably disposed on the upper part of the lead screw 502 and is sleeved between the housing 504 and the housing cover 505. The inverted cone 506 is fixedly disposed on the side of the housing 504 away from the rotating handle 503. The lead screw 502 rotatably passes through the rotating handle 503, the housing 504, the housing cover 505, and the inverted cone 506 in sequence. A stepped groove 508 is provided at the end of the lead screw 502 away from the rotating handle 503.

[0151] Multiple gripping units 507 are provided, and the multiple gripping units 507 are arranged around the circumference of the inverted cone 506. Each gripping unit 507 has an inclined surface adapted to the outer surface of the inverted cone 506 on the side that is in contact with the inverted cone 506. The bottom end of each gripping unit 507 is engaged in the stepped groove 508. Multiple annular grooves are provided on the surface of the gripping unit 507 away from the inverted cone 506, and annular springs 509 are provided in the annular grooves.

[0152] It should be noted that, Figure 11 and Figure 12 This is a schematic diagram showing that the stator gripping device 501 has gripped the stator 511.

[0153] Specifically, in this embodiment, the gripping unit 507 can be set to 6, 7, 8 or other numbers. Multiple gripping units 507 are evenly arranged around the circumference of the inverted cone 506. When the lead screw 502 is rotated, multiple gripping units 507 can open evenly in a petal shape, thereby tightly supporting the inner wall of the stator 511 to achieve gripping of the stator 511.

[0154] Furthermore, the gripping unit 507 has multiple annular grooves on the surface away from the inverted cone 506, and annular springs 509 are installed in the annular grooves. The annular springs 509 have a certain elastic force, so the annular springs 509 can wrap around the multiple gripping units 507 and prevent the multiple gripping units 507 from falling apart when not gripping.

[0155] This embodiment also discloses a hybrid gearbox dual-motor assembly device, wherein both ends of the lead screw 502 are provided with pin holes 510. When the rotating handle 503 is rotated in the first direction, the rotating handle 503 drives the lead screw 502 to rotate in the first direction, and the stepped groove 508 on the lead screw 502 moves toward the direction close to the inverted cone 506, and drives multiple gripping units 507 to move toward the direction close to the inverted cone 506. The side of the multiple gripping units 507 close to the inverted cone 506 opens outward along the circumference of the inverted cone 506.

[0156] When the handle 503 is rotated in the second direction, the handle 503 drives the lead screw 502 to rotate in the second direction. The stepped groove 508 on the lead screw 502 moves away from the inverted cone 506 and drives multiple gripping units 507 to move away from the inverted cone 506. The side of the multiple gripping units 507 closest to the inverted cone 506 retracts inward along the circumference of the inverted cone 506. The first direction is either clockwise or counterclockwise.

[0157] Specifically, in this embodiment, the pin holes 510 provided at both ends of the lead screw 502 are used for the upper and lower pins 704 of the lifting assembly assembly to be positioned against each other when assembling the stator 511. For example, when the handle 503 is rotated clockwise, the handle 503 drives the lead screw 502 to rotate clockwise. The stepped groove 508 on the lead screw 502 moves toward the direction close to the inverted cone 506, and drives multiple gripping units 507 to move toward the direction close to the inverted cone 506. The multiple gripping units 507 open outward in a petal shape along the circumference of the inverted cone 506 on the side close to the inverted cone 506, thereby supporting the inner wall of the stator 511. When the feeding tray 2 is positioned in the assembly position, the stator feeding tray 401 transports the stator 511 and the stator gripping device 501 to the corresponding position, and then drives the lifting assembly assembly to move. The lower ejector pin 704 and the upper ejector pin 607 on the lifting assembly assembly hold the stator gripping device 501, and then the stator feeding tray 401 is removed, and the stator 511 is assembled. After the stator 511 is assembled. Rotate the handle 503 counterclockwise. Rotating the handle 503 causes the lead screw 502 to rotate counterclockwise. The stepped groove 508 on the lead screw 502 moves away from the inverted cone 506. Multiple gripping units 507 move away from the inverted cone 506. The multiple gripping units 507 close to the side of the inverted cone 506 retract inward in a petal shape along the circumference of the inverted cone 506, thereby detaching from the inner wall of the stator 511. The stator gripping device 501 is moved out of the stator 511 through the lifting assembly assembly, and then the rotor 14 is assembled.

[0158] More specifically, in this embodiment, when the stator gripping device 501 grips the stator 511, it rests against the inner wall of the stator 511, thereby ensuring that the outer wall of the stator 511 fits snugly against the mounting position on the motor component, achieving thermal fitting assembly of the stator 511. The gripping units 507 are arranged in a petal shape around the inverted cone 506. When the rotating handle 503 drives the lead screw 502 to rotate, the multiple petal-shaped gripping units 507 switch between open and retracted states, thereby achieving gripping or releasing of the stator 511.

[0159] This embodiment also discloses a hybrid gearbox dual-motor assembly device, such as... Figure 1 and Figure 13As shown, the lifting assembly includes a vertical mounting plate 601 and a first lifting device 6 and a second lifting device 7, as well as a third lifting device 8 and a fourth lifting device 9, respectively disposed on both sides of the vertical mounting plate 601.

[0160] A vertical mounting plate 601 is erected in the assembly area and extends through the workbench 13. A first lifting device 6 and a third lifting device 8 are symmetrically arranged on the same side of the vertical mounting plate 601, and a second lifting device 7 and a fourth lifting device 9 are symmetrically arranged on the other side of the vertical mounting plate 601. The first lifting device 6 and the second lifting device 7 work together, and the third lifting device 8 and the fourth lifting device 9 work together.

[0161] Specifically, in this embodiment, the first lifting device 6 and the second lifting device 7 work together to install one of the stators 511 or rotors 14 of the dual motors, and the third lifting device 8 and the fourth lifting device 9 work together to install the other stator 511 or rotor 14 of the dual motors. The first lifting device 6 and the third lifting device 8 are symmetrically arranged on the same side of the vertical mounting plate 601, and the second lifting device 7 and the fourth lifting device 9 are symmetrically arranged on the other side of the vertical mounting plate 601. This allows the first lifting device 6 and the second lifting device 7, the third lifting device 8 and the fourth lifting device 9 to work simultaneously, thereby assembling the stator 511 or rotor 14 at the same time. This ensures the consistency and accuracy of the assembly of the stators 511 and rotors 14 of the dual motors and improves installation efficiency.

[0162] This embodiment also discloses a hybrid gearbox dual-motor assembly device, such as... Figure 13 and Figure 14 As shown, the first lifting device 6 includes a first lifting part 602, a first lifting slide rail 609 assembly, a first sliding part 604, a first pressure sensor 605, an upper ejector pin seat 606, and an upper ejector pin 607.

[0163] The first lifting part 602 is fixedly installed on one side of the vertical mounting plate 601. The first lifting part 602 is equipped with a first drive motor, a first lifting screw, a first transmission nut, and a first output shaft 603. The first transmission nut is sleeved on the bottom of the first lifting screw. The top end of the first lifting screw is connected to the output end of the first drive motor. One end of the first output shaft 603 is connected to the first transmission nut, and the other end of the first output shaft 603 is connected to the upper ejector seat 606. A first pressure sensor 605 is also provided between the upper ejector seat 606 and the first output shaft 603. The upper ejector seat 606 is fixedly installed on the first sliding part 604, and the upper ejector 607 is fixedly installed on the side of the upper ejector seat 606 away from the first pressure sensor 605.

[0164] The vertical mounting plate 601 is provided with a first sliding groove 608 opened in the vertical direction. The first lifting slide rail 609 assembly includes two first lifting slide rails 609 provided on both sides of the first sliding groove 608. The first sliding part 604 is slidably provided on the first lifting slide rail 609 assembly.

[0165] Specifically, in this embodiment, a first drive motor, a first lifting screw, a first transmission nut, and a first output shaft 603 are arranged within the first lifting part 602 to form a screw sliding mechanism. By controlling the first drive motor to rotate clockwise or counterclockwise, the upper ejector pin 607 is controlled to move up and down in the height direction. A first pressure sensor 605 is provided to detect and control the force on the upper ejector pin 607, further controlling the force on the stator 511. Furthermore, the first lifting slide rail 609 assembly ensures that the upper ejector pin 607 has good stability and straightness during vertical movement, thereby ensuring coaxiality during motor assembly, avoiding eccentricity, and ensuring product installation quality.

[0166] This embodiment also discloses a hybrid gearbox dual-motor assembly device, such as... Figure 13 and Figure 14 As shown, the second lifting device 7 includes a second lifting part 701, a second lifting slide rail 707 assembly, a second sliding part 702, a second pressure sensor 705, a lower ejector seat 703, and a lower ejector pin 704. The second lifting part 701 is fixedly mounted on the first sliding part 604 via an upper ejector seat 606, which passes through a first sliding groove 608. The second lifting part 701 houses a second drive motor, a second lifting screw, a second transmission nut, and a second output shaft 708. The second transmission nut is screwed onto the second lifting screw, which is connected to the output end of the second drive motor. The second transmission nut is connected to the second output shaft 708. A lower ejector seat 703 is located at one end of the second output shaft 708. The second pressure sensor 705 is positioned between the lower ejector seat 703 and the second output shaft 708. The lower ejector seat 703 is fixedly mounted on the second sliding part 702, and the lower ejector pin 704 is mounted on the lower ejector seat 703.

[0167] Furthermore, the vertical mounting plate 601 is provided with a second sliding groove 706 opened in the vertical direction, and the second lifting slide rail 707 assembly includes two second lifting slide rails 707 provided on both sides of the second sliding groove 706, and the second sliding part 702 is slidably provided on the second lifting slide rail 707 assembly.

[0168] Specifically, in this embodiment, the second lifting part 701 is equipped with a second drive motor, a second lifting screw, a second transmission nut, and a second output shaft 708 to form a screw sliding mechanism. By controlling the second drive motor to rotate clockwise or counterclockwise, the lower ejector pin 704 is controlled to move up and down in the height direction. A second pressure sensor 705 is provided to detect and control the force on the lower ejector pin 704, further controlling the force on the stator 511. Furthermore, the second lifting slide rail 707 assembly ensures good stability and straightness of the lower ejector pin 704 during vertical movement, thereby guaranteeing coaxiality during motor assembly, avoiding eccentricity, and ensuring product installation quality. The four lifting devices enable the clamping and assembly operations of the dual-motor assembly.

[0169] Furthermore, such as Figure 14 As shown, because the second lifting part 701 of the second lifting device 7 is mounted on the first sliding part 604 of the first lifting device 6, when the first drive motor rotates, it will drive the upper ejector pin 607 and the lower ejector pin 704 to move simultaneously, and the distance between the upper ejector pin 607 and the lower ejector pin 704 will not change. However, when the second drive motor rotates, it will drive the lower ejector pin seat 703 and the lower ejector pin 704 to move, and the distance between the two ejector pins will be adjusted only by the movement of the lower ejector pin 704.

[0170] In other words, when assembling the stator 511 or the rotor 14, the first drive motor rotates first, causing the upper ejector pin 607 and the lower ejector pin 704 to move downwards simultaneously. When the upper ejector pin 607 abuts against the upper ejector pin hole 510 of the stator gripping device 501 or the rotor 14, the second drive motor rotates and causes the lower ejector pin seat 703 and the lower ejector pin 704 to move upwards. When the lower ejector pin 704 abuts against the ejector pin hole 510 of the stator gripping device 501 or the rotor 14, the stator gripping device 501 or the rotor 14 is pressed and fixed. Then, the first drive motor continues to rotate, causing the upper ejector pin 607, the lower ejector pin 704, and the stator gripping device 501 or the rotor 14 to move downwards simultaneously and be installed in the motor assembly.

[0171] This embodiment also discloses a hybrid gearbox dual-motor assembly device. The worktable 13, located in the assembly area, has two worktable ejector pin holes 1301 penetrating the worktable 13. When the feeding tray 2 is positioned in the assembly area, the two worktable ejector pin holes 1301 coincide with two hollow support columns 212 on the feeding tray 2. Furthermore, two lower ejector pins 704 on the second lifting part 701 of the second lifting device 7 and the fourth lifting part (not shown in the figure) of the fourth lifting device 9 sequentially penetrate the worktable ejector pin holes 1301 and the hollow support columns 212. The two lower ejector pins 704 can move up and down along the axis of the hollow support columns 212. It should be noted that the worktable ejector pin holes 1301 are two fixed holes drilled in the worktable 13 and cannot be moved. When the feeding tray 2 is positioned in the assembly area, the two hollow support columns 212 are supported on the inner ring of the rotor bearing 15, thereby preventing abnormal stress on the rotor bearing 15 during rotor 14 installation.

[0172] Specifically, in this embodiment, the two lower ejector pins 704 pass through the ejector pin hole 1301 of the worktable and the hollow support column 212 in sequence and abut against the stator 511 or the rotor 14. Then, the first drive motor or the third drive motor rotates, driving the upper ejector pin 607 and the lower ejector pin 704 to move simultaneously, thereby assembling the stator 511 or the rotor 14 into the motor component.

[0173] This embodiment also discloses a hybrid transmission dual-motor assembly device, which includes a high-voltage control cabinet 5 located at the back of the frame 1 and used for power supply, and a control panel 10 disposed on one side of the frame 1. The control panel 10 is used to control the operation of the heating mechanism 3, the assembly mechanism, and the feeding mechanism components in the hybrid transmission dual-motor assembly device.

[0174] More specifically, the assembly process of the hybrid gearbox dual-motor assembly device in this embodiment will be described using an example:

[0175] When assembling the stator 511 and rotor 14 of the dual motors, the stator 511 needs to be assembled first. The stator 511 needs to be thermally assembled. Therefore, the motor components of the dual motors are first placed on the feeding tray 2 and transported and fixed to the heating area. Then, the heating element 305 is moved into the motor components for heating. The heating temperature and heating time can be set and adjusted according to actual needs. After the motor components are heated, the heating element 305 is removed and reset. The heated motor components are then transported and fixed to the assembly area through the feeding tray 2. Then, the stator feeding tray 401 is moved to transport the stator 511 and the stator gripping device 501 to the assembly position. The stator gripping device 501 is then held in place by the two pairs of upper ejector pins 607 and lower ejector pins 704 on the lifting assembly assembly. The stator feeding tray 401 is then removed, and the lifting assembly assembly is continued to complete the assembly of the stator 511.

[0176] It should be noted that heating is not required during rotor 14 assembly, nor is the stator feed tray 401 required to operate. Assembly and positioning are only performed at the assembly location in the assembly area, specifically as follows:

[0177] The rotor 14 is manually clamped between two pairs of upper ejector pins 607 and lower ejector pins 704. Then, the lifting assembly assembly is driven to assemble the rotor 14 into the motor assembly. During assembly, the upper and lower ends of the rotor 14 are positioned by the two ejector pins. The strong magnetic field generated by the rotor 14 will not affect its assembly. The stator 511 and rotor 14 are centered and positioned by the lifting assembly assembly, preventing the rotor 14 from shifting during assembly and avoiding scratches on the inner wall of the stator 511 and the bottom bearing, thus eliminating safety hazards such as finger pinching. This greatly reduces the difficulty of centering and assembling dual motors. Furthermore, as... Figure 15 As shown, when assembling the rotor 14, the inner ring of the rotor bearing 15 is interference-fitted with the shaft of the motor rotor 14. The hollow support column 212 is supported on the inner ring of the motor bearing to prevent abnormal bearing stress. It also has functions such as floating adjustment and automatic compensation of housing size tolerance. At the same time, the hollow support column 212 can also allow the lower ejector pin 704 to pass through and abut against the rotor 14.

[0178] In summary, this invention provides a hybrid gearbox dual-motor assembly device, including a frame 1 and a worktable 13. The worktable 13 is provided with a heating zone and an assembly zone located on one side of the heating zone. It also includes a heating mechanism 3, an assembly mechanism, and a feeding mechanism. The heating mechanism 3 in the heating zone heats the motor components or housings of the dual motors. The assembly mechanism in the assembly zone installs the motor stator 511 and rotor 14 within the motor components or housings of the dual motors. A feeding mechanism is provided between the heating zone and the assembly zone to transport the motor components, housings, stator 511, or rotor 14 of the dual motors. The device exhibits high accuracy and stability during stator 511 or rotor 14 assembly, and high assembly efficiency. It can simultaneously perform heat-fitting assembly of the dual motors, and the assembly process is relatively simple and convenient. It enables non-contact heat-fitting assembly of the motor stator 511, ensures the assembly positioning accuracy of the motor rotor 14, and supports floating adjustment to automatically compensate for housing dimensional tolerances, meeting the requirements for high-precision and high-efficiency automated assembly.

[0179] Example 2

[0180] This embodiment also discloses an assembly method for a dual-motor hybrid transmission, applicable to the dual-motor hybrid transmission assembly device in any of Embodiment 1. Figures 16-20 For assembly diagrams, please refer to further details. Figure 21 It can be seen that the assembly methods include:

[0181] S1. Place the motor component on the feeding tray 2, and use the control panel 10 to control the slide rail assembly to transport the feeding tray 2 and the motor component to the heating zone. Then, use the heating positioning device 11 within the heating zone to fix the feeding tray 2 and the motor component relative to each other. Figure 16 As shown.

[0182] Specifically, in step S1, when the slide rail assembly transports the feeding tray 2 and the motor component to the heating zone, the right side of the tray drive cylinder 209 is air-intaken, driving the feeding tray 2 and the motor component to move to the left to the heating zone, and the feeding tray 2 and the motor component are fixed in the heating position by the heating positioning device 11.

[0183] S2. The heating assembly is moved relative to the support assembly and the heating element 305 is aligned with the housing to be heated on the motor component via the control panel 10. When the heating element 305 is located inside the housing to be heated, the heating element 305 is controlled by the control panel 10 to heat the housing. Figure 17 As shown.

[0184] Specifically, in step S2, when the control panel 10 controls the heating component to move relative to the support component, the horizontal drive cylinder 301 and the vertical drive cylinder 302 in the support component both work, and sequentially drive the vertical bracket 304 and the horizontal bracket 306 to align the heating element 305 with the shell to be heated, and move it downward to transport the heating element 305 into the shell to be heated, and then control the heating temperature and heating time of the heating element 305.

[0185] S3. The heating component is reset via control panel 10, and the slide rail assembly is used to transport the feeding tray 2 and motor components to the assembly area via control panel 10. Figure 18 As shown.

[0186] Specifically, in step S3, when the heating component is reset, the horizontal drive cylinder 301 and the vertical drive cylinder 302 move in opposite directions, and the pallet drive cylinder 209 takes in air from the left side, driving the feeding pallet 2 and the motor components to the assembly area.

[0187] S4. The feeding assembly 4 is controlled by the control panel 10 to transport the stator 511 and the stator gripping device 501, and the stator 511 is aligned with the heating housing on the motor component. Then, the stator 511 is assembled by the lifting assembly assembly. Figure 19 and Figure 20 As shown.

[0188] Specifically, in step S4, the two stator feeding trays 401 in the feeding assembly 4 transport the two stators 511 and the stator gripping device 501 to the assembly position along the feeding slide rail 405, aligning the stators 511 with the heating housing on the motor component. Then, the stators 511 are assembled by the lifting assembly assembly. The process of the lifting assembly assembly pressing against and clamping the stator gripping device 501 is the same as in Embodiment 1, and will not be described again in this embodiment.

[0189] S5. Assemble the rotor 14 by lifting the assembly assembly.

[0190] Specifically, in step S4, when assembling the rotor 14, heating is not required, nor is the stator feeding tray 401 needed to operate. The rotor 14 is manually clamped between two pairs of upper ejector pins 607 and lower ejector pins 704. Then, the lifting assembly assembly is driven to assemble the rotor 14 into the motor component. During the assembly process, the upper and lower ends of the rotor 14 are positioned by the two ejector pins. During the assembly of the stator 511 and the rotor 14, the upper tray assembly 203 and the lower tray assembly 204 automatically support the floating and compensate for adjustments, meeting the requirements of high-precision and high-efficiency automated assembly.

[0191] While the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the invention to these descriptions. Various changes in form and detail can be made by those skilled in the art, including several simple deductions or substitutions, without departing from the spirit and scope of the invention.

Claims

1. A hybrid transmission dual-motor assembly device, characterized by, The machine includes a frame, the frame including a horizontally extending worktable, the worktable having a heating zone and an assembly area located on one side of the heating zone; and further includes: A heating mechanism is movably disposed on the worktable and located within the heating zone. The heating mechanism includes a heating component and a support component that movably supports the heating component. The heating component includes a heating element for heating a motor component placed within the heating zone, and the heating component is movable relative to the worktable in the front-back direction and the height direction on the support component. An assembly mechanism, disposed within the assembly area, includes a lifting assembly assembly component and a feeding component located below the lifting assembly component and slidable horizontally; and A feeding mechanism, comprising a slide rail assembly and a feeding tray slidably disposed on the slide rail assembly, the slide rail assembly being horizontally extended on the worktable and extending from the heating zone to the assembly zone; The slide rail assembly includes a tray slide rail, which is horizontally disposed on the workbench and extends from the heating zone to the assembly zone. The feeding tray includes a lower tray assembly and an upper tray assembly sleeved on the lower tray assembly. The lower tray assembly and the upper tray assembly are horizontally arranged and slidably disposed on the tray slide rail. A plurality of spring assemblies are also disposed between the upper tray assembly and the lower tray assembly. The hybrid transmission dual-motor assembly device also includes a positioning device, which includes a heating positioning device and an assembly positioning device disposed on the worktable. The heating positioning device and the assembly positioning device have the same structure. The heating positioning device is disposed in the heating area, and the assembly positioning device is disposed in the assembly area. Each of the positioning devices includes a positioning cylinder fixedly disposed on the worktable. A positioning pin guide sleeve is disposed on the outside of the positioning cylinder. A slidable thrust piston is disposed inside the positioning cylinder. A positioning pin that can move along the positioning pin guide sleeve is disposed on the upper part of the thrust piston. A first air inlet and a second air inlet are disposed at intervals on one side of the positioning cylinder. A positioning pin hole that matches the positioning pin is also disposed on the lower tray assembly.

2. The hybrid gearbox dual-motor assembly device as described in claim 1, characterized in that, The supporting components of the heating mechanism include a horizontal slide rail, a vertical slide rail, a vertical bracket, and a horizontal bracket; in The horizontal slide rail is fixedly mounted on the worktable surface and located within the heating zone. The extension direction of the horizontal slide rail is perpendicular to the extension direction of the slide rail assembly on the feeding mechanism. The vertical support is slidably mounted on the horizontal slide rail. The vertical slide rail extends vertically and is mounted on the vertical support. The horizontal support is slidably mounted on the vertical slide rail. The heating element is fixedly mounted on the horizontal support. It also includes a horizontal drive cylinder and a vertical drive cylinder. The horizontal drive cylinder is disposed on one side of the horizontal slide rail and fixedly disposed on the worktable. The piston movement direction of the horizontal drive cylinder is the same as the extension direction of the horizontal slide rail, and the piston push rod of the horizontal drive cylinder is connected to the vertical support. The vertical drive cylinder is disposed on one side of the vertical slide rail and fixedly disposed on the vertical support. The piston movement direction of the vertical drive cylinder is the same as the extension direction of the vertical slide rail, and the piston push rod of the vertical drive cylinder is connected to the horizontal support.

3. The hybrid gearbox dual-motor assembly device as described in claim 2, characterized in that, The support assembly further includes a horizontal damper and a vertical damper; wherein The horizontal damper is fixedly mounted on the worktable and located at the end of the horizontal slide rail away from the horizontal drive cylinder. Each horizontal damper has a damping plug on the side near the vertical support. The vertical damper is fixedly mounted on the vertical support and located at the end of the vertical slide rail away from the horizontal support. Each vertical damper also has a damping plug on the side closer to the horizontal support.

4. The hybrid gearbox dual-motor assembly device as described in claim 1, characterized in that, The slide rail assembly also includes a tray drive cylinder, which is fixedly mounted on the worktable and located on one side of the tray slide rail. The piston movement direction of the tray drive cylinder is the same as the extension direction of the tray slide rail. The feeding tray is fixedly connected to the output end of the tray drive cylinder.

5. The hybrid gearbox dual-motor assembly device as described in claim 4, characterized in that, The output end of the pallet drive cylinder includes a piston magnet disposed inside the pallet drive cylinder and slidably disposed along the piston movement direction of the pallet drive cylinder. A rigid sliding sleeve that cooperates with the piston magnet is slidably connected to the outside of the pallet drive cylinder. The rigid sliding sleeve is fixedly disposed at the bottom of the feeding pallet.

6. The hybrid gearbox dual-motor assembly device as described in claim 5, characterized in that, The lower tray assembly has multiple sliders fixedly installed on the side near the tray slide rail, and the multiple sliders are slidably installed on the tray slide rail. The lower tray assembly has multiple guide rods installed on the side near the upper tray assembly, and the multiple guide rods are spaced apart on the periphery of the lower tray assembly. The lower tray assembly also has two hollow support columns spaced apart in the middle. The upper tray assembly is provided with a guide sleeve that is coaxially engaged with the guide rod. The guide sleeve protrudes from the plane where the upper tray assembly is located, and the middle part of the upper tray assembly is provided with a through hole that is coaxially engaged with the hollow support column. in When the upper tray assembly is fitted onto the lower tray assembly, the guide sleeve is fitted onto the corresponding guide rod, and the hollow support column passes through the through hole.

7. The hybrid gearbox dual-motor assembly device as described in claim 6, characterized in that, Each spring assembly includes a spring seat and a spring. The spring seat is fixedly disposed on the side of the lower tray assembly near the upper tray assembly. The spring is sleeved on the spring seat, and the end of the spring away from the spring seat abuts against the upper tray assembly.

8. The hybrid gearbox dual-motor assembly device as described in claim 7, characterized in that, The tray slide rail is provided with tray dampers and tray proximity switches at both ends of its extension direction. The pallet damper and the pallet proximity switch are symmetrically arranged at both ends of the pallet slide rail, and a damping plug is provided on the side of the pallet damper near the feeding pallet.

9. The hybrid gearbox dual-motor assembly device as described in any one of claims 1-8, characterized in that, When air enters through the first air inlet, the air intake pushes the thrust piston and the positioning pin upward, causing the positioning pin to enter the positioning pin hole. When air enters through the second air inlet, the air intake pushes the thrust piston and the positioning pin downward, causing the positioning pin to disengage from the positioning pin hole.

10. The hybrid gearbox dual-motor assembly device as described in claim 1, characterized in that, The feeding assembly includes stator feeding assemblies symmetrically distributed on both sides of the lifting assembly assembly and located below the lifting assembly assembly. Each stator feeding assembly includes a stator feeding mechanism and a stator gripping device. in The stator feeding mechanism includes a feeding slide rail, a feeding drive cylinder, and a stator feeding tray. The feeding slide rail is fixedly mounted on the worktable, and the length direction of the feeding slide rail is the same as the length direction of the worktable. The feeding drive cylinder is parallel to one side of the feeding slide rail, and the extension direction of the feeding drive cylinder is the same as the extension direction of the feeding slide rail. The stator feeding tray is inverted "L" shape. One side of the stator feeding tray is slidably mounted on the feeding slide rail, and the other side is connected to the feeding drive cylinder through a connecting plate. The feeding drive cylinder is provided with a slidable movable sleeve, and the movable sleeve is fixedly connected to the connecting plate. The stator feeding tray is provided with a positioning plate for placing the stator gripping device. The positioning plate is provided with a circular boss that protrudes from the plane of the stator feeding tray and is adapted to the stator gripping device. A notch is provided on one side of the circular boss. Furthermore, a feeding tray damper is provided at one end of the feeding slide rail.

11. The hybrid gearbox dual-motor assembly device as described in claim 10, characterized in that, The stator gripping device includes a lead screw, a rotating handle, a housing, a housing cover, an inverted cone, and a gripping unit; in The rotating handle is rotatably disposed on the upper part of the lead screw. The rotating handle is placed between the outer shell and the outer shell cover. The inverted cone is fixedly disposed on the side of the outer shell away from the rotating handle. The lead screw rotatably passes through the rotating handle, the outer shell, the outer shell cover and the inverted cone in sequence. A stepped groove is provided at the end of the lead screw away from the rotating handle. in The gripping unit is provided in multiple ways, and the multiple gripping units are arranged around the circumference of the inverted cone. Each gripping unit has an inclined surface adapted to the outer surface of the inverted cone on the side that is in contact with the inverted cone, and the bottom end of each gripping unit is engaged in the stepped groove. The side surface of the gripping unit away from the inverted cone is provided with multiple annular grooves, and annular springs are provided in the annular grooves.

12. The hybrid gearbox dual-motor assembly device as described in claim 11, characterized in that, Both ends of the lead screw are provided with ejector pin holes; and When the rotating handle rotates in the first direction, the rotating handle drives the lead screw to rotate in the first direction, the stepped groove on the lead screw moves toward the direction closer to the inverted cone, and drives the multiple gripping units to move toward the direction closer to the inverted cone, and the side of the multiple gripping units closest to the inverted cone opens outward along the circumference of the inverted cone; When the rotating handle rotates in the second direction, the rotating handle drives the lead screw to rotate in the second direction, the stepped groove on the lead screw moves away from the inverted cone, and drives the multiple gripping units to move away from the inverted cone. The side of the multiple gripping units closest to the inverted cone retracts inward along the circumference of the inverted cone; wherein, the first direction is either clockwise or counterclockwise.

13. The hybrid gearbox dual-motor assembly device as described in claim 9, characterized in that, The lifting assembly includes a vertical mounting plate and a first lifting device and a second lifting device respectively disposed on both sides of the vertical mounting plate, as well as a third lifting device and a fourth lifting device; in The vertical mounting plate stands upright in the assembly area and extends through the workbench. The first lifting device and the third lifting device are symmetrically arranged on the same side of the vertical mounting plate, and the second lifting device and the fourth lifting device are symmetrically arranged on the other side of the vertical mounting plate. The first lifting device and the second lifting device work together, and the third lifting device and the fourth lifting device work together.

14. The hybrid gearbox dual-motor assembly device as described in claim 13, characterized in that, The first lifting device includes a first lifting part, a first lifting slide rail assembly, a first sliding part, a first pressure sensor, an upper ejector pin seat, and an upper ejector pin; wherein The first lifting part is fixedly disposed on one side of the vertical mounting plate. The first lifting part is provided with a first drive motor, a first lifting screw, a first transmission nut and a first output shaft. The first transmission nut is sleeved on the bottom of the first lifting screw. The top end of the first lifting screw is connected to the output end of the first drive motor. One end of the first output shaft is connected to the first transmission nut. The other end of the first output shaft is connected to the upper ejector seat. A first pressure sensor is also disposed between the upper ejector seat and the first output shaft. The upper ejector seat is fixedly disposed on the first sliding part. The upper ejector is fixedly disposed on the side of the upper ejector seat away from the first pressure sensor. The vertical mounting plate is provided with a first sliding groove opened in the vertical direction, and the first lifting slide rail assembly includes two first lifting slide rails provided on both sides of the first sliding groove, and the first sliding part is slidably provided on the first lifting slide rail assembly.

15. The hybrid gearbox dual-motor assembly device as described in claim 14, characterized in that, The second lifting device includes a second lifting part, a second lifting slide rail assembly, a second sliding part, a second pressure sensor, a lower ejector pin seat, and a lower ejector pin; wherein The second lifting part is fixedly mounted on the first sliding part via the upper ejector seat. The upper ejector seat passes through the first sliding groove. The second lifting part contains a second drive motor, a second lifting screw, a second transmission nut, and a second output shaft. The second transmission nut is screwed onto the second lifting screw. The second lifting screw is connected to the output end of the second drive motor. The second transmission nut is connected to the second output shaft. A lower ejector seat is located at one end of the second output shaft. A second pressure sensor is located between the lower ejector seat and the second output shaft. The lower ejector seat is fixedly mounted on the second sliding part, and a lower ejector pin is mounted on the lower ejector seat. The vertical mounting plate is provided with a second sliding groove opened in the vertical direction, and the second lifting slide rail assembly includes two second lifting slide rails provided on both sides of the second sliding groove, and the second sliding part is slidably provided on the second lifting slide rail assembly.

16. The hybrid gearbox dual-motor assembly device as described in claim 15, characterized in that, The workbench surface located in the assembly area is also provided with two workbench pin holes that penetrate the workbench surface. in When the feeding tray is positioned in the assembly area, the two worktable ejector pin holes coincide with the two hollow support columns on the feeding tray, and the two lower ejector pins on the second lifting part and the fourth lifting part of the fourth lifting device pass through the worktable ejector pin holes and the hollow support columns in sequence, and the two lower ejector pins can move up and down along the axial direction of the hollow support columns.

17. A method for assembling dual motors in a hybrid transmission, applied to the dual motor assembly device for a hybrid transmission as described in any one of claims 1-16, characterized in that, The assembly device further includes a high-voltage control cabinet located at the back of the frame and used for power supply, and a control panel located on one side of the frame. The assembly method includes: S1. Place the motor component on the feeding tray, and control the slide rail assembly through the control panel to transport the feeding tray and the motor component to the heating zone, and fix the feeding tray and the motor component relatively by the positioning device in the heating zone; S2. The heating component is moved relative to the support component and aligned with the heating element on the motor component through the control panel. When the heating element is located inside the housing to be heated, the heating element is controlled by the control panel to heat the housing to be heated. S3. Control the heating component to reset via the control panel, and control the slide rail assembly via the control panel to transport the feeding tray and the motor component to the assembly area; S4. Control the feeding assembly to transport the stator and the stator gripping device through the control panel, align the stator with the heating housing on the motor component, and then assemble the stator through the lifting assembly assembly; S5. Assemble the rotor using the lifting assembly assembly.

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