A range extender combining device and a combining method

Abstract

This invention provides a range extender assembly device and method. The range extender assembly device includes a frame and a pallet, and a conveying device, a positioning device, a pressing device, a clamping device, and a pressing device respectively mounted on the frame. A first station and a second station are arranged side-by-side on the pallet. The first station supports and positions the engine, and the second station supports and positions the generator. The conveying device conveys the pallet. The positioning device lifts and positions the pallet when it is conveyed to a preset position. The pressing device presses the engine onto the first station after the pallet is lifted. The clamping device clamps and moves the generator to align with the engine after the pallet is lifted. The pressing device drives the clamping device to translate, pressing the generator onto the engine. The range extender assembly device provided by this invention can directly connect to upstream and downstream stations to achieve fully automated range extender assembly, eliminating the need for hoisting procedures and improving assembly efficiency and accuracy.

Description

Technical Field

[0001] This invention relates to the field of range extender assembly technology, and more particularly to a range extender assembly equipment and a range extender assembly method using the aforementioned equipment. Background Technology

[0002] In traditional drive systems, the engine and generator are typically separate units connected by an external coupling, resulting in a series of problems such as bulkiness, low efficiency, and poor reliability. However, with the rapid development of new energy vehicle technology, higher demands are placed on cabin space, vibration and noise reduction, as well as reliability and sealing. Integrating the engine and generator powertrain can meet the urgent needs of range extenders for miniaturization, lightweighting, high efficiency, and high reliability. However, current range extender assembly methods require the engine and generator to be hoisted separately onto an assembly platform for assembly, and then the entire range extender assembly must be removed after assembly. These multiple hoisting operations not only affect the assembly efficiency of the range extender but also cause wear on the splines between the engine and generator, impacting product quality.

[0003] In response, Chinese invention patent application CN118205645A provides a vehicle range extender assembly fixture and method. This fixture replaces the traditional fixed assembly table with a movable platform. A rotating device and an engine tray are installed on the movable platform. A spline alignment tool corrects the mating angle between the male key of the high-voltage generator and the female key of the engine. Guide pins mounted on the engine ensure high-precision assembly of the high-voltage generator and engine. Therefore, after lifting the high-voltage generator, its position can be accurately corrected and aligned with the engine, improving assembly accuracy. Furthermore, since the movable platform can directly move the assembled range extender, it reduces the lifting operations of the assembled range extender and avoids wear on the male and female splines of the high-voltage generator and engine. However, this vehicle range extender assembly fixture cannot completely eliminate lifting operations. The engine and generator still need to be lifted separately onto the assembly fixture for assembly, and manual positioning is required, affecting assembly efficiency and quality. Summary of the Invention

[0004] The primary objective of this invention is to provide a range extender assembly equipment that can directly connect to upstream and downstream workstations, eliminate the need for hoisting operations, and achieve fully automated assembly of the engine and generator.

[0005] Another object of the present invention is to provide a method for combining a range extender with a gearbox, using the above-mentioned range extender combining equipment.

[0006] To achieve the above objectives, the present invention provides the following technical solution: As a first aspect, the present invention provides a range extender packing device, including a frame and a tray, and a conveying device, a positioning device, a pressing device, a clamping device and a pressing device respectively disposed on the frame; The tray is provided with a first workstation and a second workstation side by side. The first workstation is used to support and position the engine, and the second workstation is used to support and position the generator. The conveying device is used to convey the pallet; The positioning device is located below the conveying device and is used to lift and position the pallet when the pallet is conveyed to the preset position; The pressing device is mounted above the conveying device and is used to press the engine onto the first work station from top to bottom after the pallet is lifted. The clamping device is mounted above the conveying device and is used to clamp and move the generator to an aligned position with the engine after the tray is lifted. The pressing device is connected to the clamping device and is used to drive the clamping device to translate so as to press the generator onto the engine.

[0007] Preferably, the pallet includes a fixed plate and a turntable rotatably mounted on the fixed plate, as well as a limiting component disposed on the fixed plate for circumferentially limiting the turntable, wherein the first station is disposed on the turntable and the second station is disposed on the fixed plate; The positioning device includes a first positioning mechanism and a second positioning mechanism. The first positioning mechanism includes a first lifting component and a plurality of first positioning pins respectively connected to the first lifting component. The first lifting component is used to drive the plurality of first positioning pins to jointly lift the fixed plate and support the turntable through the fixed plate. The second positioning mechanism includes a second lifting component and a plurality of second positioning pins respectively connected to the second lifting component. The second lifting component is used to drive the plurality of second positioning pins to jointly lift the turntable and support and position the turntable.

[0008] Preferably, the positioning device includes a stopping mechanism for stopping the pallet when it is transported to a preset position. The stopping mechanism includes a stopping base, a first linear drive assembly mounted horizontally on the stopping base, a rotating seat rotatably mounted on the stopping base, and a second linear drive assembly, a buffer, and a stopping component sequentially disposed on the rotating seat. The rotating seat is provided with a guide structure. The driving end of the first linear drive assembly is used to push the rotating seat upward along the guide structure when it extends, and drive the stop member to protrude above the conveying device. The middle section of the stop member is hinged to the rotating seat. The first end of the stop member is used to stop the tray. The second end of the stop member abuts against the buffer member. The second linear drive assembly is connected to the end of the buffer member away from the stop member and is used to push the stop member to reset.

[0009] Preferably, the top-pressing device includes a first lifting mechanism and a top-pressing plate connected to the drive end of the first lifting mechanism, as well as a plurality of top-pressing components disposed on the bottom surface of the top-pressing plate; The top pressure assembly includes a first top pressure assembly for abutting against the planar structure at the top of the engine. The first top pressure assembly includes a first sleeve mounted on the top pressure plate, a first push rod axially movable and passing through the first sleeve, and a first spring pressing between the first sleeve and the first push rod. The first sleeve is provided with a first axial limiting structure for limiting the axial movement stroke of the first push rod. The end of the first push rod away from the first sleeve is used to abut against the planar structure at the top of the engine.

[0010] Preferably, the top pressure assembly further includes a second top pressure assembly for insertion into the hole structure at the top of the engine. The second top pressure assembly includes a second sleeve mounted on the top pressure plate, a second push rod axially movable through the second sleeve, and a second spring and a transmission ball sequentially disposed in the inner cavity of the second push rod in a direction away from the second sleeve. The second sleeve is provided with a second axial limiting structure for limiting the axial movement stroke of the second push rod. The second sleeve is also provided with a drive rod that passes through the inner cavity of the second push rod and abuts against the end of the second spring away from the transmission ball. The end of the second push rod includes a plurality of elastic petals arranged circumferentially. The plurality of elastic petals surround to form an expansion pin for insertion into the hole structure at the top of the engine. The transmission ball is used to be pushed by the drive rod to open the plurality of elastic petals together when the first push rod moves axially toward the second sleeve.

[0011] Preferably, the range extender assembly further includes a detection device mounted on the side of the conveying device. The detection device includes a detection base, a third linear drive assembly and a guide seat respectively mounted on the detection base. The drive end of the third linear drive assembly is provided with a detection pin. The third linear drive assembly is used to drive the detection pin to move in the direction toward the engine and insert the detection pin into the hole structure on the side of the engine. The guide seat is provided with a guide hole along the pressing direction of the generator. The clamping device is provided with a fourth linear drive assembly arranged along the pressing direction of the generator and a guide pin connected to the drive end of the fourth linear drive assembly. The fourth linear drive assembly is used to drive the guide pin to extend out and pass through the guide hole after the detection pin is inserted into the hole structure on the side of the engine, so as to guide and limit the pressing direction of the generator through the cooperation between the guide pin and the guide hole.

[0012] Preferably, the clamping device includes a second lifting mechanism and a clamp connected to the drive end of the second lifting mechanism, as well as an angle fine-tuning mechanism disposed between the second lifting mechanism and the clamp; The angle fine-tuning mechanism includes a connecting plate connected to the drive end of the second lifting mechanism, a plurality of floating joints arranged between the connecting plate and the clamp, and two push-pull assemblies respectively located at both ends of the connecting plate and connected to the clamp. The drive ends of the two push-pull assemblies are used to move in opposite directions to adjust the tilt angle between the clamp and the connecting plate.

[0013] Preferably, the second lifting mechanism includes a mounting base connected to the pressing device, a lifting motor and two auxiliary lifting cylinders respectively mounted on the mounting base, and a lifting bracket slidably mounted vertically on the mounting base. The lifting bracket is provided with a lifting rack along the vertical direction, and the output shaft of the lifting motor is provided with a lifting gear that meshes with the lifting rack. The two auxiliary lifting cylinders are symmetrically arranged on opposite sides of the lifting bracket, and the piston rods of the two auxiliary lifting cylinders are respectively connected to the lifting bracket. The mounting base is also provided with a lubrication gear that meshes with the lifting rack. The lubrication gear has a first drain hole for connecting an external lubricating oil pipe axially at the shaft center position, and a second drain hole communicating with the first drain hole is provided radially between two adjacent teeth of the lubrication gear.

[0014] Preferably, the range extender packing device further includes a fastening device, which includes a robotic arm and at least one fastening mechanism disposed on the robotic arm; The fastening mechanism includes a rotary drive assembly and a clamping cylinder connected to the rotary drive assembly. The clamping cylinder is used to clamp the fastening bolts. The robotic arm is used to drive the fastening mechanism to move and drive the fastening bolts to pass into the preset assembly holes of the engine and the generator respectively. The rotary drive assembly is used to drive the fastening bolts to tighten and fix them.

[0015] As a second aspect, the present invention also provides a method for combining a range extender into its storage compartment, using the aforementioned range extender storage compartment combining equipment, the method comprising the following steps: S100: The pallet from the upstream station is transported to the preset position by the conveying device. The engine and generator are respectively supported and fixed on the pallet. S200: The pallet is lifted and positioned by a positioning device; S300: The top pressing device presses the engine onto the first station of the tray from top to bottom, and the clamping device clamps and moves the generator to align with the engine. S400: The pressing device drives the clamping device to move horizontally, thereby pressing the generator onto the engine and completing the assembly of the engine and generator. S500: The clamping device releases the motor and retracts to reset, the pressing device rises and disengages from the motor, and then the positioning device lowers the pallet onto the conveying device so that the pallet can be transported to the downstream workstation via the conveying device.

[0016] Compared with the prior art, the solution of the present invention has the following advantages: The range extender assembly equipment provided by this invention can transport a pallet from the upstream workstation to a preset position via a conveying device for engine and generator assembly. The assembled pallet can then be transported to the downstream workstation via the same conveying device, directly connecting the upstream and downstream workstations to achieve fully automated assembly line assembly of the engine and generator, eliminating the need for hoisting and effectively improving assembly efficiency. Secondly, when the pallet is transported to the preset position, a positioning device lifts and positions the pallet. Then, a pressing device presses the engine onto the pallet from top to bottom at the first workstation, achieving stable engine positioning and fixation. A clamping device then clamps and moves the generator to align with the engine. Finally, a pressing device drives the clamping device to move horizontally, pressing the generator onto the engine, achieving fully automated engine and generator assembly without manual positioning, improving assembly accuracy and effectively enhancing the product quality of the range extender.

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

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the structure of the range extender packing device provided in an embodiment of the present invention; Figure 2 for Figure 1 The diagram shows the usage status of the positioning device and pallet of the range extender packing equipment. Figure 3 for Figure 2 The diagram shows the structure of the tray. Figure 4 for Figure 2 The diagram shows the structure of the positioning device. Figure 5 for Figure 4 A schematic diagram of the stopping mechanism in the positioning device shown; Figure 6 for Figure 5 The diagram showing the changing states of the stop mechanism illustrates the retracted state of the stop component. Figure 7 for Figure 1 The diagram shows the structural schematic of the top pressure device of the range extender box assembly equipment; Figure 8 for Figure 7 A cross-sectional view of the second pressing assembly in another embodiment of the pressing device shown; Figure 9 for Figure 1 The diagram shows the structure of the clamping device of the range extender box closing equipment; Figure 10 for Figure 1 The diagram shows the structural schematic of the testing device for the range extender assembly equipment; Figure 11 for Figure 1 The diagram shows the structure of the second lifting mechanism of the range extender packing device. Figure 12 for Figure 11 A schematic diagram of the second lifting mechanism at another angle; Figure 13 for Figure 11 A schematic diagram of the lubrication gear in the second lifting mechanism is shown. Figure 14 This is a schematic diagram of the fastening device provided in an embodiment of the present invention.

[0019] Legend: 1000. Range extender assembly equipment; 1. Frame; 11. Base plate; 12. Column; 13. Support frame; 2. Pallet; 21. Fixing plate; 211. Second station; 212. Buffer pad; 213. Lifting ring; 214. Limiting wheel; 22. Turntable; 221. First station; 23. Limiting assembly; 231. Drive handle; 24. Chip; 3. Conveying device; 31. Clearance hole; 4. Positioning device; 41. First positioning mechanism; 411. First lifting assembly; 4111. First lifting cylinder; 4112. First lifting plate; 412. First positioning pin; 42. Second positioning mechanism; 421. Second lifting assembly; 4211. Second lifting cylinder; 4212. Second lifting plate; 422. Second positioning pin; 43. Positioning base; 431. First guide cylinder; 44. Stop mechanism; 441. Stop base; 442. First linear drive assembly; 4421. Support wheel; 443. Rotary seat; 4431. Guide structure; 444. Second linear drive assembly; 445. Buffer; 446. Stop component; 4461. Guide wheel; 447. First position sensor; 45. Read / write head; 5. Top-pressing device; 51. First lifting mechanism; 52. Top-pressing plate; 521. Top-pressing guide rod; 53. First top-pressing assembly; 531. First sleeve; 532. First push rod; 533. First spring; 54. Second top-pressing assembly; 541. Second sleeve; 5411. Second axial limiting structure; 5412. Drive rod; 542. Second push rod; 5421. Elastic flap; 543. Second spring; 544. Transmission ball; 55. Top-pressing base; 56. Second guide cylinder; 6. Clamping device; 61. Second lifting mechanism; 611. Mounting base; 6111. Lifting slider; 612. Lifting motor; 613. Auxiliary lifting cylinder; 614. Lifting bracket; 6141. Lifting guide rail; 615. Lifting rack; 616. Lifting gear; 617. Lubrication gear; 6171. First drainage hole; 6172. Second drainage hole; 62. Fixture; 621. Fixture base; 622. Gripper; 623. Fixture cylinder; 63. Angle fine-tuning mechanism; 631. Connecting plate; 632. Floating joint; 633. Push-pull assembly; 64. Fourth linear drive assembly; 65. Guide pin; 7. Pressing device; 71. Pressing base; 72. Press; 8. Detection device; 81. Detection base; 82. Third linear drive assembly; 83. Guide seat; 831. Guide hole; 84. Detection pin; 85. Second position sensor; 9. Fastening device; 91. Robotic arm; 92. Fastening mechanism; 921. Rotary drive assembly; 922. Clamping cylinder; 2000, engine; 3000, generator. Detailed Implementation

[0020] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] Those skilled in the art will understand that, unless specifically stated otherwise, the term "comprising" as used in this specification means the presence of the stated features, integers, steps, operations, parts, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, parts, components, and / or groups thereof. It should be understood that when we say a part is "connected" to another part, it can be directly connected to the other part, or there may be intermediate parts. The term "and / or" as used herein includes all or any unit and all combinations of one or more associated listed items.

[0022] Figures 1 to 14 The invention also illustrates the range extender assembly equipment provided in this embodiment, which is used to automatically assemble the engine and generator of the range extender and ensure their precise placement. It can also directly connect to upstream and downstream workstations to achieve fully automated assembly line operations for the engine and generator, eliminating the need for hoisting procedures, and providing precise positioning and high assembly efficiency.

[0023] Please combine Figure 1 and Figure 2 The range extender assembly equipment 1000 includes a frame 1 and a tray 2, and a conveying device 3, a positioning device 4, a pressing device 5, a clamping device 6, and a pressing device 7 respectively disposed on the frame 1; a first station 221 and a second station 211 are arranged side by side on the tray 2, the first station 221 is used to support and position the engine 2000, and the second station 211 is used to support and position the generator 3000; the conveying device 3 is used to convey the tray 2; the positioning device 4 is disposed below the conveying device 3 and is used to position the tray 2 when it is conveyed to the pre-positioning device 3. When positioning, the pallet 2 is lifted and positioned; the pressing device 5 is mounted above the conveying device 1 and is used to press the engine 2000 onto the first station 221 from top to bottom after the pallet 2 is lifted; the clamping device 6 is mounted above the conveying device 1 and is used to clamp and move the generator 3000 to an aligned state with the engine 2000 after the pallet 2 is lifted; the pressing device 7 is connected to the clamping device 6 and is used to drive the clamping device 6 to translate so as to press the generator 3000 onto the engine 2000.

[0024] Specifically, in the range extender assembly equipment 1000, the pallet 2 of the upstream station can be transported to a preset position by the conveying device 3 for the assembly of the engine 2000 and the generator 3000. The pallet 2 after the assembly is completed can be transported to the downstream station by the conveying device 3, directly connecting the upstream and downstream stations to realize the fully automated assembly line operation of the engine 2000 and the generator 3000, without the need for hoisting procedures, effectively improving assembly efficiency. Secondly, when the pallet 2 is transported to the preset position, the positioning device 4 lifts and positions the pallet 2, and then the pressing device 5 presses the engine 2000 onto the first station 221 of the pallet 2 from top to bottom, so as to achieve stable positioning and fixation of the engine 2000. The clamping device 6 clamps and moves the generator 3000 to the state of aligning with the engine 2000. Finally, the pressing device 7 drives the clamping device 6 to move horizontally to drive the generator 3000 to press onto the engine 2000, so as to achieve fully automatic assembly of the engine 2000 and the generator 3000. No manual operation is required for positioning, which improves the assembly accuracy and effectively improves the product quality of the range extender.

[0025] like Figure 3 As shown, the tray 2 includes a fixed plate 21 and a turntable 22 rotatably mounted on the fixed plate 21, as well as a limiting component 23 disposed on the fixed plate 21 for circumferentially limiting the turntable 22. The first station 221 is disposed on the turntable 221, and the second station 211 is disposed on the fixed plate 21. Specifically, the fixed plate 21 has a stepped hole, and the turntable 22 is rotatably placed in the stepped hole. The fixed plate 21 supports the turntable 22 while exposing part of the structure of the turntable 22 to the bottom of the fixed plate 21.

[0026] like Figure 4As shown, the positioning device 4 includes a first positioning mechanism 41 and a second positioning mechanism 42. The first positioning mechanism 41 includes a first lifting component 411 and a plurality of first positioning pins 412 respectively connected to the first lifting component 411. The first lifting component 411 is used to drive the plurality of first positioning pins 412 to jointly lift the fixed plate 21 and support the turntable 22 through the fixed plate 21. The second positioning mechanism 42 includes a second lifting component 421 and a plurality of second positioning pins 422 respectively connected to the second lifting component 421. The second lifting component 421 is used to drive the plurality of second positioning pins 422 to jointly lift the turntable 22 and support and position the turntable 22. Specifically, after the conveying device 3 conveys the pallet 2 to the preset position, the first lifting component 411 drives multiple first positioning pins 412 to rise synchronously to lift the pallet 2 as a whole for pre-positioning. Then, the second lifting component 421 drives multiple second positioning pins 422 to rise synchronously to strengthen the support and positioning of the turntable 22, thereby achieving high-precision positioning and high-strength support for the engine 2000 and improving the stability of the engine 2000.

[0027] Furthermore, the positioning device 4 also includes a positioning base 43 fixedly installed on the frame 1. The first lifting assembly 411 includes a first lifting cylinder 4111 installed on the positioning base 43 and a first lifting plate 4112 connected to the piston rod of the first lifting cylinder 4111. A plurality of first positioning pins 412 are arranged on the first lifting plate 4112. The second lifting assembly 421 includes a second lifting cylinder 4211 installed on the positioning base 43 and a second lifting plate 4212 connected to the piston rod of the second lifting cylinder 4211. A plurality of second positioning pins 422 are arranged on the second lifting plate 4212, and the second lifting plate 4212 is located below the first lifting plate 4112. The first lifting plate 4112 has a plurality of positioning holes that correspond one-to-one with the plurality of second positioning pins 422. The positioning holes allow the second positioning pins 422 to pass through the top of the first lifting plate 4112, and the positioning holes can also be used to guide and limit the second positioning pins 422.

[0028] Furthermore, the positioning base 43 is provided with a plurality of first guide cylinders 431, and the first lifting plate 4112 and the second lifting plate 4212 are each provided with positioning guide rods that pass through different first guide cylinders 431 and are used to move along the first guide cylinders 431. The lifting accuracy and stability of the first positioning pin 412 and the second positioning pin 422 are improved by the guiding cooperation of the first guide cylinders 431 and the positioning guide rods.

[0029] Furthermore, the positioning base 43 is also provided with a travel limiting component for limiting the lifting stroke of the first lifting plate 4112 and / or the second lifting plate 4212. The travel limiting component can adopt a physical stop limiting structure, such as including an inverted L-shaped hook. The inverted L-shaped hook is used to stop the first lifting plate 4112 and / or the second lifting plate 4212 when it rises to the maximum stroke, so that it cannot continue to rise, thereby ensuring that the support height of the first positioning pin 412 and the second positioning pin 422 can be accurately positioned.

[0030] Please combine Figure 5 and Figure 6 The positioning device 4 further includes a stopping mechanism 44 for stopping the pallet 2 when it is transported to a preset position, so as to prevent the conveying device 3 from transporting the pallet 2 out of position. Further, the stop mechanism 44 includes a stop base 441, a first linear drive assembly 442 mounted horizontally on the stop base 441, a rotating seat 443 rotatably mounted on the stop base 441, and a second linear drive assembly 444, a buffer 445, and a stop member 446 sequentially disposed on the rotating seat 443; the rotating seat 443 is provided with a guide structure 4431, the drive end of the first linear drive assembly 442 is used to push the rotating seat 443 upward along the guide structure 4431 when extended, and drive the stop member 446 to protrude above the conveying device 3, the middle section of the stop member 446 is hinged to the rotating seat 443, the first end of the stop member 446 is used to stop the tray 2, the second end of the stop member 446 abuts against the buffer 445, and the second linear drive assembly 444 is connected to the end of the buffer 445 away from the stop member 446 and is used to push the stop member 446 back to its original position.

[0031] Specifically, the conveying device 3 can be a belt conveyor, mesh belt conveyor, roller conveyor, or plate chain conveyor, which is used to convey the pallet 2 in a horizontal direction. The stopping mechanism 44 is installed on the positioning base 43 and located below the conveying plane of the conveying device 3. When it is necessary to stop the pallet 2 on the conveying device 3, the driving end of the first linear drive assembly 442 can extend and push the rotating seat 443 upward along the guide structure 4431, thereby causing the stopping member 446 to protrude above the conveying plane of the conveying device 3.

[0032] Since the first linear drive assembly 442 and the rotary seat 443 are not rigidly connected, and the drive end of the first linear drive assembly 442 only provides vertical support to the rotary seat 443, the horizontal force on the stop member 446 when it stops will not be transmitted to the first linear drive assembly 442. This protects the first linear drive assembly 442 and also prevents the extension and retraction of the first linear drive assembly 442 from affecting the stopping position accuracy of the stop member 446. Furthermore, when the drive end of the first linear drive assembly 442 retracts, the rotary seat 443 can also swing downwards and retract below the conveying plane of the conveying device 3 under its own gravity, so that the conveying device 3 can continue to convey the tray 2. Secondly, the buffer 445 includes a buffer spring that presses against the second end of the stop member 446 and the second linear drive assembly 444. When the stop member 446 is subjected to a large horizontal force when stopping the tray 2, the buffer 445 can provide elastic buffering to prevent the engine 2000 and generator 3000 on the tray 2 from vibrating and loosening due to rigid collision. It can also provide buffer protection for the stop member 446 and the tray 2. After the stop member 446 has finished buffering, the second linear drive assembly 444 can push the stop member 446 to reset, ensuring the stopping positioning accuracy of the stop member 446.

[0033] Furthermore, one end of the rotating seat 443 along its length is hinged to the stop base 441, and the other end of the rotating seat 443 along its length is provided with the guide structure 4431. The guide structure 4431 includes a first support section and a second support section, and a guide arc surface disposed between the first support section and the second support section. When the first linear drive assembly 442 retracts, the drive end abuts against the first support section to support the rotating seat 443 in the retracted state. Figure 6 As shown in the diagram, when the drive end of the first linear drive assembly 442 extends, it pushes the rotating seat 443 upward through the guide arc surface and finally extends to abut against the second support section to support the rotating seat 443 in a stopped state. Figure 5 (As shown in the state), the drive structure is simple and efficient, enabling the first linear drive assembly 442 to drive the rotary seat 443 to swing while completely avoiding the transmission of the stopping force of the stop member 446 to the cylinder of the first linear drive assembly 442.

[0034] Preferably, the driving end of the first linear drive assembly 442 is provided with a support wheel 4421. During the extension and retraction movement, the driving end of the first linear drive assembly 442 rolls along the guide structure 4431 via the support wheel 4421 and supports the rotating seat 443, making the extension and retraction smoother and avoiding jamming. In other embodiments, the guide structure 4431 may also be configured to be adapted to the diameter of the support wheel 4421 and have a groove embedded in the support wheel 4421, further improving the guiding and supporting effect.

[0035] Preferably, the stop base 441 is further provided with a first position sensor 447, which is used to detect whether the drive end of the first linear drive assembly 442 extends or retracts to a preset position, so as to ensure that the stop member 446 is in a fully extended or fully retracted state.

[0036] Preferably, the first end of the stop member 446 is provided with a guide wheel 4461. The guide wheel 4461 is used to guide the pallet 2 during the conveying process when it comes into contact with the pallet 2, so as to avoid the pallet 2 from getting stuck during conveying.

[0037] It should be understood that the pallet 2 does not rely entirely on the stopping mechanism 44 for stopping and positioning. The conveying device 3 itself has a fixed-point positioning and conveying function, and can convey the pallet 2 to the preset position through the cooperation of position sensors and high-precision control of servo motors. Its specific structure and working principle are all prior art, and will not be described in detail here. This application uses the stopping mechanism 44 to assist in stopping and positioning, which can further improve the positioning accuracy of the pallet 2 and has a flexible buffering effect to avoid sudden stops.

[0038] Please combine Figure 3 and Figure 4 The tray 2 is also equipped with a chip 24, which is used to store the processing or assembly information of the range extender on the production line. The positioning device 4 is also equipped with a read / write head 45 at the position corresponding to the chip 24. When the tray 2 is transported by the conveying device 3 to the position facing the positioning device 4, the read / write head 45 is used to read the information in the chip 24 to quickly confirm the relevant information of the engine 2000 and the generator 3000. After the assembly operation of the engine 2000 and the generator 3000 is completed, the read / write head 45 is used to write the assembly operation record into the chip 24, thereby saving the operation record of the range extender on the entire production line.

[0039] exist Figure 3As shown, the first workstation 221 is equipped with multiple engine support components, which are arranged one-to-one with the preset support points on the bottom of the engine 2000; the second workstation 211 is equipped with multiple generator support components, which are arranged one-to-one with the preset support points on the bottom of the generator 3000. The generator support components can be fixed or detachable support rods. Specifically, multiple relatively horizontal and strong positions are first selected around the bottom of the engine 2000 as support points, and then engine support components with different positions and heights are designed according to the different support points. Similarly, multiple relatively horizontal and strong positions are first selected around the bottom of the generator 3000 as support points, and then generator support components with different positions and heights are designed according to the different support points, thereby achieving stable support and positioning of the engine 2000 and the generator.

[0040] Furthermore, the limiting component 23 includes a limiting pin (not shown in the figure, the same below) and a drive handle 231 connected to the limiting pin and used to drive the limiting pin to move in a direction closer to or away from the turntable 22. Specifically, a limiting hole is formed on the circumferential sidewall of the turntable 22. The limiting pin is movably embedded in the fixing plate 21 along the radial direction of the turntable 22 and is positioned towards the turntable 22. The drive handle 231 is used to push the limiting pin into the limiting hole to achieve circumferential limiting of the turntable 22. The drive handle 231 is also used to pull the limiting pin out of the limiting hole to release the circumferential limiting of the turntable 22. The limiting structure is simple and efficient. When assembling the engine 2000, the limiting and fixing of the turntable 22 can be quickly achieved to prevent the engine 2000 from deflecting. When it is necessary to rotate the engine 2000 for other processing or assembly processes, the limiting and fixing of the turntable 22 can also be quickly released.

[0041] Furthermore, a buffer pad 212 is detachably installed at the front end of the fixing plate 21. The buffer pad 212 is made of shock-absorbing material and is used to abut against the gear-stopping mechanism 44. Since the tray 2 needs to stably support and position the engine 2000 and the generator 3000, the fixing plate 21 and the turntable 22 need to be made of high-strength alloy material. Rigid collision with the gear-stopping mechanism 44 may generate significant vibration, which will have an adverse effect on the engine 2000 and the generator 3000. In this application, a buffer pad 212 is detachably installed at the front end of the fixing plate 21. The buffer pad 212 abuts against the gear-stopping mechanism 44, which can absorb vibration, reduce vibration transmission, and can be directly replaced after the buffer pad 212 is worn, so as to avoid affecting the gear-stopping accuracy.

[0042] Preferably, the fixing plate 21 is provided with a plurality of lifting rings 213 to directly lift the pallet 2 and the engine 2000 and / or the generator 3000 on the pallet 2, which meets the temporary lifting requirements, facilitates quick loading and unloading, and the lifting operation does not require setting lifting points on the engine 2000 and / or the generator 3000, avoiding changes in the relative position between the engine 2000 and the generator 3000, improving the transfer efficiency while ensuring the product quality of the engine 2000 and the generator 3000.

[0043] Preferably, both sides of the fixing plate 21 are provided with limiting wheels 214. The limiting wheels 214 are used to abut against the preset limiting baffle on the conveying device 3, so as to limit the position of the pallet 2 through the cooperation of the limiting baffle and the limiting wheels 214. For example, during the conveying of the pallet 2, the pallet 2 is kept in a state of being centered relative to the central axis of the conveying device 3, which further improves the conveying positioning accuracy of the pallet 2 and avoids the pallet 2 from running off course and misaligning.

[0044] More preferably, the lifting ring 213 includes a screw (not shown in the figure, the same below) installed vertically in a pre-set threaded hole in the fixing plate 21. The screw has a rotating shaft section that matches the inner hole of the limiting wheel 214. The lifting ring 213 can not only be quickly installed and removed via the screw, but also, after installation, the limiting wheel 214 can be rotatably installed via the rotating shaft section on the screw, without the need for an additional installation structure for the limiting wheel 214.

[0045] like Figure 7 As shown, the top pressing device 5 includes a first lifting mechanism 51 and a top pressing plate 52 connected to the driving end of the first lifting mechanism 51, as well as a plurality of top pressing components disposed on the bottom surface of the top pressing plate 52. The top pressing components are used to press against the top of the engine 2000.

[0046] Specifically, the top pressure assembly includes a first top pressure assembly 53, which is used to abut against the planar structure at the top of the engine 2000. The first top pressure assembly 53 includes a first sleeve 531 mounted on the top pressure plate 52, a first push rod 532 axially movable and passing through the first sleeve 531, and a first spring 533 pressing between the first sleeve 531 and the first push rod 532. The first sleeve 531 is provided with a first axial limiting structure (not shown in the figure, the same below) for limiting the axial movement stroke of the first push rod 532. The end of the first push rod 532 away from the first sleeve 531 is used to abut against the planar structure at the top of the engine 2000.

[0047] The first axial limiting structure includes a groove and a slider. One of the groove and the slider is located inside the first sleeve 531, and the other is located on the first push rod 532. The groove limits the lifting and sliding stroke of the slider, thereby limiting the axial movement stroke of the first push rod 532 relative to the first sleeve 531. Since a first spring 533 is elastically pressed between the first push rod 532 and the first sleeve 531, the first spring 533 can buffer the first push rod 532 when it presses down and contacts the engine 2000, preventing damage to the surface of the engine 2000. Furthermore, the first spring 233 can be compressed by the continued pressing action, and the first spring 233 can apply a clamping force to the engine 2000 to ensure a clamping effect.

[0048] like Figure 8 As shown, the top-pressing assembly further includes a second top-pressing assembly 54, which is used to insert into the hole structure at the top of the engine 2000. The second top-pressing assembly 54 includes a second sleeve 541 mounted on the top-pressing plate 52, a second push rod 542 axially movable and passing through the second sleeve 541, and a second spring 543 and a transmission ball 544 sequentially disposed in the inner cavity of the second push rod 542 in a direction away from the second sleeve 541. The second sleeve 541 is provided with a second axial spring for limiting the axial movement stroke of the second push rod 542. The limiting structure 5411 includes a drive rod 5412 that passes through the inner cavity of the second push rod 542 and abuts against the end of the second spring 543 away from the transmission ball 544. The end of the second push rod 542 includes a plurality of elastic petals 5421 arranged circumferentially. The plurality of elastic petals 5421 surround to form an expansion pin for insertion into a hole structure at the top of the engine 2000. The transmission ball 544 is used to be pushed by the drive rod 5412 to open the plurality of elastic petals 5421 together when the second push rod 542 moves axially toward the second sleeve 541.

[0049] Specifically, the second axial limiting structure 5411 also includes a groove and a slider. One of the groove and the slider is located inside the second sleeve 541, and the other is located on the second push rod 542. The groove limits the lifting and sliding stroke of the slider, thereby limiting the axial movement stroke of the second push rod 542 relative to the second sleeve 541.

[0050] Since the second push rod 542 forms an expansion pin by surrounding multiple elastic petals 5421 and forms an inner cavity between the multiple elastic petals 5421, the transmission ball 544 is placed in the inner cavity of the second push rod 542. When the transmission ball 544 presses the elastic petals 5421 from the inside out in a direction away from the second sleeve 541, it can drive the multiple elastic petals 5421 to open with each other. Therefore, when the top pressure plate 52 drives the second top pressure assembly 54 to descend, it drives the second push rod 542 to insert into the hole structure at the top of the engine 2000. Then, driven by the reverse force of the engine 2000, the second push rod 542 moves toward the second sleeve 541. At this time, not only can the second spring 543 provide force buffering to avoid damaging the engine 2000, but the drive rod 5412 can also squeeze the second spring 543 to push the transmission ball 544 toward the end of the second push rod 542. The transmission ball 544 squeezes the elastic petals 5421 from the inside out, causing multiple elastic petals 5421 to open with each other, thereby tightening the expansion pin in the hole structure at the top of the engine 2000 and achieving a better stable positioning effect.

[0051] Secondly, when the top pressure plate 52 drives the second top pressure assembly 54 to rise, it first drives the second sleeve 541 to rise relative to the second top rod 542, reducing the squeezing force of the drive rod 5412 on the second spring 543. As a result, the thrust exerted by the second spring 543 on the transmission ball 544 gradually decreases, and the multiple elastic petals 5421 can gradually contract and reset under their own elastic force and disengage from the hole structure of the engine 2000. The expansion and contraction adjustment of the expansion pin can be realized through the lifting and lowering action.

[0052] exist Figure 7 As shown, the top-pressing device 5 further includes a top-pressing base 55, the first lifting mechanism 51 includes a top-pressing cylinder mounted on the top-pressing base 55, the top-pressing base 55 is also provided with a second guide cylinder 56, and the top-pressing plate 52 is provided with a top-pressing guide rod 521 passing through the second guide cylinder 56. The lifting accuracy and stability of the top-pressing plate 52 are improved by the guiding cooperation of the second guide cylinder 56 and the top-pressing guide rod 521, thereby improving the lifting accuracy and stability of the first top-pressing assembly 53 and the second top-pressing assembly 54.

[0053] Please combine Figure 1 and Figure 10The range extender assembly 1000 further includes a detection device 8 mounted on the side of the conveying device 3. The detection device 8 is used to detect whether the assembly position of the engine 2000 is accurate and to guide and limit the assembly action of the generator 3000. Specifically, the detection device 8 includes a detection base 81, a third linear drive assembly 82 and a guide seat 83 respectively mounted on the detection base 81. The drive end of the third linear drive assembly 82 is provided with a detection pin 84. The third linear drive assembly 82 is used to drive the detection pin 84 to move in the direction toward the engine 2000 and insert the detection pin 84 into the hole structure on the side of the engine 2000. The guide seat 83 is provided with a guide hole 831 along the pressing direction of the generator 3000.

[0054] like Figure 9 As shown, the clamping device 6 is provided with a fourth linear drive assembly 64 arranged along the pressing direction of the generator 3000 and a guide pin 65 connected to the drive end of the fourth linear drive assembly 64. The fourth linear drive assembly 64 is used to drive the guide pin 65 to extend out and pass through the guide hole 831 after the detection pin 84 is inserted into the hole structure on the side of the engine 2000, so as to guide and limit the pressing direction of the generator 3000 through the cooperation of the guide pin 65 and the guide hole 831.

[0055] Specifically, before pressing the generator 3000, the detection pin 84 is driven by the third linear drive assembly 82 to move in the direction toward the engine 2000. When the detection pin 84 cannot be inserted into the hole structure on the side of the engine 2000, it means that the engine 2000 is not in the assembly position and needs to be readjusted before the assembly operation can be carried out. If the detection pin 84 can be fully inserted into the hole structure on the side of the engine 2000, it means that the engine 2000 is in the assembly position. At this time, the guide pin 65 is driven by the fourth linear drive assembly 64 to extend out and pass through the guide hole 831 to strengthen the support of the clamping device 6. Finally, the pressing device 7 drives the clamping device 6 to translate so as to press the generator 3000 onto the engine 2000. During the pressing process, the cooperation between the guide pin 65 and the guide hole 831 guides and limits the pressing direction, improving the pressing accuracy and stability.

[0056] Furthermore, in this embodiment, the fourth linear drive assembly 64 is also used to synchronously drive the guide pin 65 to retract during the pressing of the generator 3000, so that the relative position of the guide pin 65 with respect to the guide hole 831 remains unchanged during the closing process, further improving the stability of the range extender closing. In another embodiment, the fourth linear drive assembly 64 can also remain stationary during the pressing of the generator 3000. In this case, the guide pin 65 moves synchronously with the pressing action of the generator 3000, and the pressing direction of the generator 3000 can also be guided and limited by the cooperation between the guide pin 65 and the guide hole 831.

[0057] Furthermore, the fourth linear drive assembly 64 and the guide pin 65 are arranged side by side, and the driving end of the fourth linear drive assembly 64 and the tail end of the guide pin 65 are connected as a whole by a connecting seat. That is, the front end of the guide pin 65 is close to the tail end of the fourth linear drive assembly 64. Compared with the arrangement of the fourth linear drive assembly 64 and the guide pin 65 along a straight line, the space occupied in the length direction can be reduced, and the excessively long protruding structure in the clamping device 6 can be avoided, which would cause interference between the clamping device 6 and other devices. Secondly, the side-by-side arrangement can also fix the mounting plate of the fourth linear drive assembly 64 to pass through the guide pin 65 and support and guide the guide pin 65, further improving the stability of the guide pin 65.

[0058] Please combine Figure 9 and Figure 10 Preferably, two fourth linear drive components 64 are provided, and the two fourth linear drive components 64 are respectively disposed on opposite sides of the clamping device 6. The driving end of each of the two fourth linear drive components 64 is provided with the guide pin 65. The detection device 8 includes two detection bases 81, which are respectively disposed on opposite sides of the clamping device 6. Each of the two detection bases 81 is provided with the guide seat 83, and the guide seats 83 on the two detection bases 81 are correspondingly arranged with the guide pins 65 on the two fourth linear drive components 64, so as to guide the action of the box through the one-to-one cooperation of the two guide pins 65 and the two guide seats 83, thereby improving the guiding effect.

[0059] In this embodiment, the detection device 8 can complete the position detection of the engine 2000 by providing the third linear drive assembly 82 and the detection pin 84 on only one of the detection bases 81. In other embodiments, the configuration can be adjusted according to the positioning requirements of the engine 2000, for example, by providing the third linear drive assembly 82 and the detection pin 84 on both detection bases 81.

[0060] Furthermore, the detection device 8 also includes a second position sensor 85 disposed on the detection base 81. The second position sensor 85 is used to detect the extension length of the detection pin 84, thereby determining whether the detection pin 84 is accurately inserted into the hole structure on the side of the engine 2000.

[0061] Please combine Figure 1 and Figure 9 The clamping device 6 includes a second lifting mechanism 61 and a clamp 62 connected to the drive end of the second lifting mechanism 61, as well as an angle fine-tuning mechanism 63 disposed between the second lifting mechanism 61 and the clamp 62. The second lifting mechanism 61 is mounted above the conveying device 3, and the drive end of the second lifting mechanism 61 is arranged vertically downward to suspend the clamp 62 above the conveying device 3 and allow the clamp 62 to move up and down relative to the conveying device 3, thereby adjusting the clamping position of the clamp 62 or adjusting the height position of the generator 3000 after clamping the generator 3000. The angle fine-tuning mechanism 63 is used to adjust the tilt angle of the clamp 62 so that the tilt angle of the clamp 62 relative to the generator 3000 and / or the engine 2000 is adapted to match, thereby enabling the clamp 62 to clamp and move the generator 3000 to a state aligned with the engine 2000.

[0062] Specifically, the angle fine-tuning mechanism 63 includes a connecting plate 631 connected to the driving end of the second lifting mechanism 61, a plurality of floating joints 632 arranged between the connecting plate 631 and the clamp 62, and two push-pull components 633 respectively disposed at both ends of the connecting plate 631 and connected to the clamp 62. The driving ends of the two push-pull components 633 are used to move in opposite directions to adjust the tilt angle between the clamp 62 and the connecting plate 631. The push-pull components 622 can be cylinders or hydraulic cylinders, and the driving ends of the push-pull components 622 are hinged to the clamp 62 to allow the clamp 62 to deflect. The angle fine-tuning mechanism 63 connects the connecting plate 631 and the clamp 62 into a whole through multiple floating joints 632, giving the clamp 62 a certain amount of room to move and allowing the clamp 62 to deflect. At this time, by driving the two sides of the clamp 62 to move in opposite directions through two push-pull components 633, the clamp 62 can be deflected by a certain angle, thereby realizing the angle fine-tuning of the clamp 62.

[0063] Preferably, the clamp 62 includes a clamp base 621 connected to the angle fine-tuning mechanism 63, two grippers 622 slidably mounted on the clamp base 621 via guide rails, and two clamp cylinders 623 disposed on opposite sides of the clamp base 621 and connected to the two grippers 622 in a one-to-one correspondence. The two clamp cylinders 623 drive the two grippers 622 to move in opposite directions to achieve clamping or releasing actions, ensuring that the clamping force of the grippers 622 can stably clamp the generator 3000, preventing loosening. Furthermore, since the grippers 622 are mounted on the clamp base 621 via guide rails, the guide rails support and guide the movement of the grippers 622, effectively improving the stability of the grippers 622.

[0064] Please combine Figure 11 and Figure 12 The second lifting mechanism 61 includes a mounting base 611 connected to the pressing device 7, a lifting motor 612 and two auxiliary lifting cylinders 613 respectively mounted on the mounting base 611, and a lifting bracket 614 slidably mounted vertically on the mounting base 611. The lifting bracket 614 is provided with a lifting rack 615 vertically. The output shaft of the lifting motor 612 is provided with a lifting gear 616 that meshes with the lifting rack 615. The two auxiliary lifting cylinders 613 are symmetrically arranged on opposite sides of the lifting bracket 614. The piston rods of the two auxiliary lifting cylinders 613 are respectively connected to the lifting bracket 614. The clamp 62 and the angle fine-tuning mechanism 63 are mounted on the lifting bracket 614.

[0065] Specifically, the second lifting mechanism 61 drives the lifting gear 616 to rotate via the lifting motor 612, which in turn drives the lifting rack 615 to move up and down, thereby driving the lifting bracket 614 to move up and down, achieving high-precision lifting control. Furthermore, an auxiliary lifting cylinder 613 is provided on each of the opposite sides of the lifting bracket 614. The two auxiliary lifting cylinders 613 balance the lifting bracket 614, eliminate excess gravity, reduce the driving load of the lifting motor 612, which is conducive to the smooth lifting of the lifting bracket 614 and improves the strength and load capacity of the clamp 62.

[0066] Furthermore, a speed reducer is provided between the lifting motor 612 and the lifting gear 616. The speed reducer reduces the rotational speed and increases the torque, ensuring that the lifting motor 612 can smoothly drive the lifting bracket 614 to move up and down.

[0067] Furthermore, the lifting bracket 614 has multiple lifting guide rails 6141 arranged side by side on the side facing the mounting base 611. The mounting base 611 has multiple lifting sliders 6111 that correspond one-to-one with the multiple lifting guide rails 6141. The lifting action of the lifting bracket 614 is guided and limited by the guiding cooperation between the multiple lifting sliders 6111 and the multiple lifting guide rails 6141, thereby improving the lifting accuracy and stability of the lifting bracket 614.

[0068] Please combine Figure 13 The mounting base 611 is also provided with a lubrication gear 617 that meshes with the lifting rack 615. The lubrication gear 617 has a first drain hole 6171 for connecting an external lubricating oil pipe axially at the axial position. The lubrication gear 617 has a second drain hole 6172 that communicates with the first drain hole 6171 radially between two adjacent teeth.

[0069] In use, lubricating oil can be delivered to the inner cavity of the lubricating gear 617 through the external lubricating oil pipe along the first drain hole 6171, and then the lubricating oil in the inner cavity of the lubricating gear 617 can be delivered outward to the space between two adjacent teeth through the second drain hole 6172. Thus, when the lubricating gear 617 rotates relative to the lifting rack 615, the lubricating oil is applied to the lifting rack 615, so that the lifting rack 615 and the lifting gear 616 can maintain a lubricated state for transmission.

[0070] like Figure 14 As shown, the range extender assembly device 1000 also includes a fastening device 9, which includes a robotic arm 91 and at least one fastening mechanism 92 disposed on the robotic arm 91. The fastening mechanism 92 is used to install fastening bolts and connect and fix the engine 2000 and the generator 3000 through the fastening bolts. The robotic arm 91 is installed on one side of the frame 1 and is used to drive the fastening mechanism 92 to move to different positions to perform fastening operations.

[0071] Furthermore, the fastening mechanism 92 includes a rotary drive assembly 921 and a clamping cylinder 922 connected to the rotary drive assembly 921. The rotary drive assembly 921 can be a motor or a rotary cylinder. The clamping cylinder 922 is used to clamp the fastening bolt. The robotic arm 91 is used to drive the fastening mechanism 92 to move and drive the fastening bolt to pass into the preset assembly holes of the engine 2000 and the generator 3000 respectively. The rotary drive assembly 921 is used to drive the fastening bolt to tighten and fix it, so as to realize the fully automatic installation of the fastening bolt.

[0072] Furthermore, the robotic arm 91 is provided with multiple fastening mechanisms 92 arranged side by side, and the positions of the multiple fastening mechanisms 92 correspond one-to-one with the multiple mounting holes on the engine 2000, so as to install multiple fastening bolts simultaneously through multiple fastening mechanisms 92, thereby improving assembly efficiency.

[0073] like Figure 1 As shown, the pressing device 7 includes a pressing base 71 and a press 72. The pressing base 71 is slidably mounted on the frame 1 via a guide rail. The clamping device 6 is mounted on the pressing base 71. The drive end of the press 72 is connected to the pressing base 71 and is used to drive the pressing base 71 to translate, thereby driving the clamping device 6 and the generator 3000 it clamps to translate for pressing operations.

[0074] Furthermore, the frame 1 includes a base plate 11 and multiple columns 12 disposed on the base plate 11, and a support frame 13 supported above the base plate 11 by the multiple columns 12. The conveying device 3, the positioning device 4 and the detection device 8 are all installed on the base plate 11, and the pressing device 5, the clamping device 6 and the pressing device 7 are all disposed on the support frame 13, forming a space between the base plate 11 and the support frame 13 for the pallet 2 and the engine 2000 and generator 3000 it carries to be transported laterally.

[0075] Furthermore, the conveying device 3 is provided with a clearance hole 31, which is provided corresponding to the position of the stop mechanism 44, the first positioning pin 412 and / or the second positioning pin 422, so that the corresponding components can pass through from the bottom of the conveying device 3 to the top of the conveying device 3.

[0076] Furthermore, the first linear drive assembly 442, the second linear drive assembly 444, the third linear drive assembly 82, and the fourth linear drive assembly 64 can be cylinders, hydraulic cylinders, or electric push rods, and the appropriate type can be selected based on power and accuracy requirements in practical applications.

[0077] As a second aspect, the present invention also provides a method for combining range extenders into their respective containers, using the aforementioned range extender combining equipment 1000, the method comprising the following steps: S100: The pallet 2 of the upstream station is transported to the preset position by the conveying device 3. The engine 2000 and the generator 3000 are respectively supported and fixed on the pallet 2. S200: The pallet 2 is lifted and positioned by the positioning device 4; S300: The top pressing device 5 presses the engine 2000 onto the first station 221 of the tray 2 from top to bottom, and the clamping device 6 clamps and moves the generator 3000 to the state of aligning with the engine 2000. S400: The pressing device 7 drives the clamping device 6 to move horizontally, thereby pressing the generator 3000 onto the engine 2000, thus completing the assembly operation of the engine 2000 and the generator 3000. S500: The clamping device 6 releases the motor 3000 and retracts to reset. The pressing device 5 rises and disengages from the motor 2000. Then, the positioning device 4 lowers the pallet 2 onto the conveying device 3 so that the pallet 2 can be conveyed to the downstream station by the conveying device 3.

[0078] Since the range extender assembly method uses the range extender assembly equipment 1000 to automatically assemble the engine 2000 and generator 3000, it can directly connect to upstream and downstream workstations to realize fully automated assembly line operations for the engine 2000 and generator 3000, eliminating the need for hoisting processes, effectively improving assembly efficiency. Furthermore, it can achieve fully automated assembly operations for the engine 2000 and generator 3000 without manual positioning, improving assembly accuracy and effectively enhancing the product quality of the range extender.

[0079] The above description is only a partial embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A range extender casing apparatus, characterized by, It includes a frame (1) and a tray (2), as well as a conveying device (3), a positioning device (4), a pressing device (5), a clamping device (6) and a pressing device (7) respectively provided on the frame (1); The tray (2) is provided with a first station (221) and a second station (211) side by side. The first station (221) is used to support and position the engine (2000), and the second station (211) is used to support and position the generator (3000). The conveying device (3) is used to convey the pallet (2); The positioning device (4) is located below the conveying device (3) and is used to lift and position the pallet (2) when the pallet (2) is conveyed to the preset position; The top pressing device (5) is mounted above the conveying device (3) and is used to press the engine (2000) onto the first station (221) from top to bottom after the tray (2) is lifted. The clamping device (6) is mounted above the conveying device (3) and is used to clamp and move the generator (3000) to a position aligned with the engine (2000) after the tray (2) is lifted. The pressing device (7) is connected to the clamping device (6) and is used to drive the clamping device (6) to translate so as to press the generator (3000) onto the engine (2000).

2. The range extender cell assembly of claim 1, wherein, The pallet (2) includes a fixed plate (21) and a turntable (22) rotatably mounted on the fixed plate (21), and a limiting component (23) disposed on the fixed plate (21) for circumferentially limiting the turntable (22). The first station (221) is disposed on the turntable (22), and the second station (211) is disposed on the fixed plate (21). The positioning device (4) includes a first positioning mechanism (41) and a second positioning mechanism (42). The first positioning mechanism (41) includes a first lifting component (411) and a plurality of first positioning pins (412) respectively connected to the first lifting component (411). The first lifting component (411) is used to drive the plurality of first positioning pins (412) to lift the fixed plate (21) together and support the turntable (22) through the fixed plate (21). The second positioning mechanism (42) includes a second lifting component (421) and a plurality of second positioning pins (422) respectively connected to the second lifting component (421). The second lifting component (421) is used to drive the plurality of second positioning pins (422) to lift the turntable (22) together and support and position the turntable (22).

3. The range extender packing device according to claim 1, characterized in that, The positioning device (4) includes a stopping mechanism (44) for stopping the pallet (2) when it is transported to a preset position. The stopping mechanism (44) includes a stopping base (441), a first linear drive assembly (442) mounted horizontally on the stopping base (441), a rotating seat (443) rotatably mounted on the stopping base (441), and a second linear drive assembly (444), a buffer (445), and a stopping member (446) sequentially disposed on the rotating seat (443). The rotating seat (443) is provided with a guide structure (4431). The driving end of the first linear drive assembly (442) is used to push the rotating seat (443) upward along the guide structure (4431) when it extends, and drive the stop member (446) to protrude above the conveying device (3). The middle section of the stop member (446) is hinged to the rotating seat (443). The first end of the stop member (446) is used to stop the tray (2). The second end of the stop member (446) abuts against the buffer member (445). The second linear drive assembly (444) is connected to the end of the buffer member (445) away from the stop member (446) and is used to push the stop member (446) to reset.

4. The range extender packing device according to claim 1, characterized in that, The top pressing device (5) includes a first lifting mechanism (51) and a top pressing plate (52) connected to the drive end of the first lifting mechanism (51), as well as a plurality of top pressing components disposed on the bottom surface of the top pressing plate (52). The top pressure assembly includes a first top pressure assembly (53) for abutting against the planar structure at the top of the engine (2000). The first top pressure assembly (53) includes a first sleeve (531) mounted on the top pressure plate (52), a first push rod (532) axially movable inside the first sleeve (531), and a first spring (533) pressing between the first sleeve (531) and the first push rod (532). The first sleeve (531) is provided with a first axial limiting structure for limiting the axial movement stroke of the first push rod (532). The end of the first push rod (532) away from the first sleeve (531) is used to abut against the planar structure at the top of the engine (2000).

5. The range extender packing device according to claim 4, characterized in that, The top pressure assembly further includes a second top pressure assembly (54) for insertion into a hole structure at the top of the engine (2000). The second top pressure assembly (54) includes a second sleeve (541) mounted on the top pressure plate (52), a second push rod (542) axially movable inside the second sleeve (541), and a second spring (543) and a transmission ball (544) sequentially disposed in the inner cavity of the second push rod (542) in a direction away from the second sleeve (541). The second sleeve (541) is provided with a second axial limiting structure (5411) for limiting the axial movement stroke of the second push rod (542). The second sleeve (541) is further provided with a drive rod (5412) that passes through the inner cavity of the second push rod (542) and abuts against the end of the second spring (543) away from the transmission ball (544). The end of the second push rod (542) includes a plurality of elastic petals (5421) arranged circumferentially. The plurality of elastic petals (5421) surround to form an expansion pin for insertion into a hole structure at the top of the engine (2000). The transmission ball (544) is used to be pushed by the drive rod (5412) to open the plurality of elastic petals (5421) to each other when the first push rod (542) moves axially toward the second sleeve (541).

6. The range extender packing device according to claim 1, characterized in that, The range extender assembly also includes a detection device (8) mounted on the side of the conveying device (3). The detection device (8) includes a detection base (81), a third linear drive assembly (82) and a guide seat (83) respectively mounted on the detection base (81). The drive end of the third linear drive assembly (82) is provided with a detection pin (84). The third linear drive assembly (82) is used to drive the detection pin (84) to move in the direction toward the engine (2000) and insert the detection pin (84) into the hole structure on the side of the engine (2000). The guide seat (83) is provided with a guide hole (831) along the pressing direction of the generator (3000). The clamping device (6) is provided with a fourth linear drive assembly (64) arranged along the pressing direction of the generator (3000) and a guide pin (65) connected to the driving end of the fourth linear drive assembly (64). The fourth linear drive assembly (64) is used to drive the guide pin (65) to extend and pass through the guide hole (831) after the detection pin (84) is inserted into the hole structure on the side of the engine (2000), so as to guide and limit the pressing direction of the generator (3000) through the cooperation of the guide pin (65) and the guide hole (831).

7. The range extender packing device according to claim 1, characterized in that, The clamping device (6) includes a second lifting mechanism (61) and a clamp (62) connected to the drive end of the second lifting mechanism (61), as well as an angle fine-tuning mechanism (63) disposed between the second lifting mechanism (61) and the clamp (62). The angle fine-tuning mechanism (63) includes a connecting plate (631) connected to the drive end of the second lifting mechanism (61), a plurality of floating joints (632) arranged between the connecting plate (631) and the clamp (62), and two push-pull components (633) respectively disposed at both ends of the connecting plate (631) and connected to the clamp (62). The drive ends of the two push-pull components (633) are used to move in opposite directions to adjust the tilt angle between the clamp (62) and the connecting plate (631).

8. The range extender packing device according to claim 7, characterized in that, The second lifting mechanism (61) includes a mounting base (611) connected to the pressing device (7), a lifting motor (612) and two auxiliary lifting cylinders (613) respectively mounted on the mounting base (611), and a lifting bracket (614) slidably mounted on the mounting base (611) in the vertical direction. The lifting bracket (614) is provided with a lifting rack (615) in the vertical direction. The output shaft of the lifting motor (612) is provided with a lifting gear (616) that meshes with the lifting rack (615). The two auxiliary lifting cylinders (613) are symmetrically arranged on opposite sides of the lifting bracket (614), and the piston rods of the two auxiliary lifting cylinders (613) are respectively connected to the lifting bracket (614). The mounting base (611) is also provided with a lubrication gear (617) that meshes with the lifting rack (615). The lubrication gear (617) has a first drain hole (6171) for connecting an external lubricating oil pipe axially at the axial position. The lubrication gear (617) has a second drain hole (6172) that communicates with the first drain hole (6171) radially between two adjacent teeth.

9. The range extender packing device according to claim 1, characterized in that, The range extender packing device also includes a fastening device (9), which includes a manipulator (91) and at least one fastening mechanism (92) provided on the manipulator (91). The fastening mechanism (92) includes a rotary drive assembly (921) and a clamping cylinder (922) connected to the rotary drive assembly (921). The clamping cylinder (922) is used to clamp the fastening bolt. The manipulator (91) is used to drive the fastening mechanism (92) to move and drive the fastening bolt to pass into the preset assembly holes of the engine (2000) and the generator (3000) respectively. The rotary drive assembly (921) is used to drive the fastening bolt to tighten and fix it.

10. A method for closing the casing of a range extender, characterized in that, Using the range extender packing device as described in any one of claims 1 to 9, the range extender packing method includes the following steps: S100: The pallet (2) of the upstream station is transported to the preset position by the conveying device (3). The engine (2000) and generator (3000) are respectively supported and fixed on the pallet (2). S200: The pallet (2) is lifted and positioned by the positioning device (4); S300: The engine (2000) is pressed from top to bottom onto the first station (221) of the tray (2) by the top pressing device (5), and the generator (3000) is clamped and moved to the state of being aligned with the engine (2000) by the clamping device (6); S400: The pressing device (7) drives the clamping device (6) to move horizontally so as to press the generator (3000) onto the engine (2000) to complete the assembly operation of the engine (2000) and the generator (3000); S500: The clamping device (6) releases the motor (3000) and retracts to reset, the pressing device (5) rises and disengages from the motor (2000), and then the positioning device (4) lowers the pallet (2) onto the conveying device (3) so that the pallet (2) can be conveyed to the downstream station by the conveying device (3).

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