Assembly line and assembly method

Abstract

The invention discloses an assembly line and an assembly method, and belongs to the technical field of vehicle manufacturing. The assembly line comprises a vehicle body line and a chassis assembly line. The vehicle body line comprises a first conveying line and a clamping mechanism, and the clamping mechanism moves along the first conveying line and is used for clamping a vehicle body. The chassis assembly line comprises a second conveying line and a lifting mechanism, the lifting mechanism moves along the second conveying line, the vehicle body line is located above the chassis assembly line, and a first chassis assembly corresponding to a bearing vehicle type or a second chassis assembly corresponding to a non-bearing vehicle type is borne on the side, facing the vehicle body line, of the lifting mechanism. When the clamping mechanism and the lifting mechanism respectively move to the assembling position, the lifting mechanism is in a lifting state, and the first chassis assembly or the second chassis assembly is assembled with the corresponding vehicle body. By the adoption of the technical scheme, the space occupied by assembly production lines of different vehicle types can be reduced, and flexible production can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle manufacturing, and in particular to an assembly production line and an assembly method. Background Art

[0002] There are significant differences in chassis structure between load-bearing and non-load-bearing models. Load-bearing models do not have an independent rigid frame, and the main load-bearing of the vehicle mainly depends on the body itself. The engine, front suspension, rear suspension and other chassis assemblies are directly installed on the body. Non-load-bearing models have an independent rigid frame, and the main load-bearing of the vehicle is completely dependent on the frame. The engine, front suspension, rear suspension and other chassis assemblies are installed on the frame, and the frame is connected to the body through elastic elements. Due to the above-mentioned differences in the composition of load-bearing and non-load-bearing models, there are significant differences in the process of assembling the body and chassis assembly between the two models.

[0003] In the related art, independent assembly production lines are generally set up for load-bearing models and non-load-bearing models, and each component of the chassis assembly is separately configured with an assembly line for assembly with the body. However, the two independent assembly production lines occupy too much space in the production workshop and are not conducive to flexible production. Summary of the invention

[0004] In view of this, the embodiments of the present application provide an assembly production line and an assembly method, which can not only reduce the space occupied by assembly production lines of different vehicle models, but also facilitate flexible production.

[0005] On the one hand, an embodiment of the present application provides an assembly production line, the assembly production line comprising a body line and a chassis assembly line;

[0006] The vehicle body line comprises a first conveying line and a clamping mechanism, the clamping mechanism moves along the first conveying line, and the clamping mechanism is used to clamp the vehicle body;

[0007] The chassis assembly line includes a second conveyor line and a lifting mechanism, the lifting mechanism moves along the second conveyor line, the body line is located above the chassis assembly line, and the lifting mechanism carries a first chassis assembly corresponding to a load-bearing vehicle model or a second chassis assembly corresponding to a non-load-bearing vehicle model on a side of the body line facing the body line;

[0008] When the clamping mechanism and the lifting mechanism are respectively moved to the assembly positions, the lifting mechanism is in a lifting state, and the first chassis assembly or the second chassis assembly is assembled with the corresponding vehicle body.

[0009] Optionally, the lifting mechanism includes a first transport vehicle, a first lifting assembly, and a second lifting assembly;

[0010] The first lifting assembly and the second lifting assembly are respectively installed on the first transport vehicle in a liftable manner, and the first lifting assembly and the second lifting assembly are arranged side by side in the length direction of the vehicle body.

[0011] Optionally, the assembly production line further comprises an adjustment line, and the adjustment line comprises a lifting mechanism, a third conveying line and an adjustment device;

[0012] The lifting mechanism is connected to the third conveying line. When the lifting mechanism is in a descending position, the third conveying line is connected to the first conveying line. When the lifting mechanism is in an ascending position, the third conveying line is located above the first conveying line.

[0013] The adjusting device is used to adjust the current clamping position of the clamping mechanism moved onto the third conveying line to a target clamping position.

[0014] Optionally, the lifting mechanism comprises a first lift, an adjustment platform and a second lift, and the first lift and the second lift are respectively located on both sides of the adjustment platform;

[0015] The third conveyor line includes a first sub-conveyor line, a second sub-conveyor line and a third sub-conveyor line, the first sub-conveyor line is located between the first conveyor line and the second sub-conveyor line, the second sub-conveyor line is located between the first sub-conveyor line and the third sub-conveyor line, and the first sub-conveyor line is connected to the first elevator;

[0016] The adjusting device is installed on the adjusting platform, and the adjusting platform is located below the second sub-conveying line;

[0017] Among them, when the first elevator is in a descending position, the first sub-conveyor line is connected to the first conveyor line; when the first elevator is in an ascending position, the first sub-conveyor line is connected to the second sub-conveyor line; when the second elevator is in an ascending position, the second sub-conveyor line is connected to the third sub-conveyor line; when the second elevator is in a descending position, the third sub-conveyor line is located below the second sub-conveyor line, so that the clamping mechanism clamps the vehicle body.

[0018] Optionally, the assembly production line further comprises a transfer hanging device, and the transfer hanging device comprises a tray mechanism and a transfer hanging mechanism;

[0019] The pallet mechanism comprises a second transport vehicle and a pallet assembly, wherein the pallet assembly is mounted on the second transport vehicle, and the pallet assembly is preassembled with the first chassis assembly or the second chassis assembly;

[0020] The transfer hanging mechanism includes a transfer hanging bracket and a transfer hanging arm, the transfer hanging arm can be movably installed on the transfer hanging bracket, the transfer hanging arm moves between the second transport vehicle and the first transport vehicle, and the transfer hanging arm can clamp or release the pallet assembly.

[0021] Optionally, the tray assembly includes a first tray and a second tray, and the first tray and the second tray are arranged side by side in the length direction of the vehicle body;

[0022] The rotating hanging arm includes a first hanging arm and a second hanging arm, the first hanging arm and the second hanging arm are arranged side by side in the length direction of the vehicle body, the first hanging arm is opposite to the first pallet, and the second hanging arm is opposite to the second pallet.

[0023] Optionally, the assembly production line includes a controller, which is electrically connected to the clamping mechanism and the lifting mechanism respectively.

[0024] On the other hand, an embodiment of the present application further provides an assembly method, which is used to control an assembly production line described in any one of the embodiments of the present application, and the assembly method includes:

[0025] Determine the current position of the clamping mechanism and the lifting mechanism;

[0026] In response to the clamping mechanism and the lifting mechanism both moving to the assembly position, a first lifting instruction is generated, wherein the first lifting instruction is used to instruct the lifting mechanism to change from a landing state to a lifting state.

[0027] Optionally, the assembly method further comprises:

[0028] In response to the clamping mechanism moving to the adjustment position, a first adjustment instruction is generated, wherein the first adjustment instruction is used to instruct to adjust the current clamping position of the clamping mechanism to the target clamping position.

[0029] Optionally, in response to the clamping mechanism moving to the adjustment position, generating a first adjustment instruction comprises:

[0030] In response to the clamping mechanism moving to the adjustment position, acquiring a target identifier corresponding to the vehicle body currently clamped by the clamping mechanism;

[0031] Based on the target identifier, determining the target clamping position corresponding to the target identifier;

[0032] Based on the target clamping position, a first adjustment instruction is generated.

[0033] The assembly line provided by the embodiment of the present application includes a body line and a chassis assembly line. The body line includes a first conveyor line and a clamping mechanism that can move along the first conveyor line. The chassis assembly line includes a second conveyor line and a lifting mechanism that can move along the second conveyor line. Since the lifting mechanism can be used to carry the first chassis assembly corresponding to the load-bearing vehicle model or the second chassis assembly corresponding to the non-load-bearing vehicle model, when the clamping mechanism and the lifting mechanism are respectively moved to the assembly position, the lifting mechanism can be directly raised, so that the first chassis assembly or the second chassis assembly can be assembled with the corresponding vehicle body at one time. Using the assembly line provided by the embodiment of the present application, the chassis assemblies of different vehicle models can be pre-assembled on the same lifting mechanism, so that different vehicle models can complete the assembly of the body and the chassis assembly on the same assembly line, without the need to set up independent assembly lines with the body for the chassis assemblies of different vehicle models, so that the load-bearing vehicle model and the non-load-bearing vehicle model can share the same assembly line, which can not only reduce the space occupied by the assembly lines of different vehicle models, but also facilitate flexible production. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0035] Figure 1 is a schematic diagram of an assembly production line provided in an embodiment of the present application;

[0036] Figure 2 It is a schematic diagram of the principle of a body and chassis assembly before reaching the assembly position in an assembly production line provided by an embodiment of the present application;

[0037] Figure 3 It is a schematic diagram of the principle of a body and chassis assembly reaching an assembly position in an assembly production line provided by an embodiment of the present application;

[0038] Figure 4 It is a schematic diagram of the principle of a body and chassis assembly reaching a first lift position in an assembly production line provided by an embodiment of the present application;

[0039] Figure 5 It is a schematic diagram of the principle of adjusting the clamping position of a clamping mechanism in an assembly production line provided by an embodiment of the present application;

[0040] Figure 6 It is a schematic diagram of the principle of a clamping mechanism re-clamping a vehicle body in an assembly production line provided by an embodiment of the present application;

[0041] Figure 7It is a structural schematic diagram of an adjustment line area in an assembly production line provided in an embodiment of the present application;

[0042] Figure 8 It is a structural schematic diagram of a transfer hanging device in an assembly production line provided in an embodiment of the present application;

[0043] Fig. 9 It is a structural schematic diagram of a tray mechanism in an assembly production line provided in an embodiment of the present application;

[0044] Fig.10 It is a structural schematic diagram of a lifting mechanism in an assembly production line provided in an embodiment of the present application;

[0045] Fig.11 It is a structural schematic diagram of a clamping mechanism in an assembly production line provided by an embodiment of the present application when releasing a vehicle body at a first lift;

[0046] Fig.12 It is a structural block diagram of an assembly production line provided in an embodiment of the present application;

[0047] Fig.13 is a flow chart of an assembly method provided in an embodiment of the present application;

[0048] Fig.14 It is a flow chart of another assembly method provided in an embodiment of the present application.

[0049] Reference numerals:

[0050] 1. Car body line; 11. First conveyor line; 12. Clamping mechanism; 121. Clamping claw;

[0051] 2. chassis assembly line; 21. second conveyor line; 22. lifting mechanism; 221. first transport vehicle; 222. first lifting assembly; 223. second lifting assembly; 225. first lifting platform; 226. first driving member; 227. second lifting platform; 228. second driving member; 229. third lifting assembly;

[0052] 3. Adjustment line; 31. Lifting mechanism; 32. Third conveyor line; 33. Adjustment device; 311. First elevator; 312. Adjustment platform; 313. Second elevator; 321. First sub-conveyor line; 322. Second sub-conveyor line; 323. Third sub-conveyor line;

[0053] 4. Transfer and hanging equipment; 41. Pallet mechanism; 42. Transfer and hanging mechanism; 411. Second transport vehicle; 412. Pallet assembly; 413. First pallet; 414. Second pallet; 43. Transfer and hanging bracket; 44. Transfer and hanging arm; 441. First arm; 442. Second arm;

[0054] 5. Controller;

[0055] 6. First interior trim line;

[0056] 7. Battery assembly line;

[0057] 8. Second interior trim line;

[0058] 9. Tire line;

[0059] 10. Adjustment line;

[0060] 101. Testing line;

[0061] 102. Car body;

[0062] 103. Chassis assembly.

[0063] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0064] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0065] Unless otherwise defined, all technical terms used in the embodiments of the present application have the same meanings as commonly understood by those skilled in the art.

[0066] In order to make the technical solutions and advantages of the present application more clear, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0067] like Figures 1 to 7 As shown, on the one hand, an embodiment of the present application provides an assembly production line, which includes a body line 1 and a chassis assembly line 2.

[0068] The vehicle body line 1 comprises a first conveyor line 11 and a clamping mechanism 12, the clamping mechanism 12 moves along the first conveyor line 11, and the clamping mechanism 12 is used to clamp the vehicle body 102. It should be noted that the first conveyor line 11 is provided with a slide rail extending along the conveying direction, and the clamping mechanism 12 moves along the slide rail of the first conveyor line 11.

[0069] The chassis assembly line 2 includes a second conveyor line 21 and a lifting mechanism 22. The lifting mechanism 22 moves along the second conveyor line 21. The body line 1 is located above the chassis assembly line 2. The lifting mechanism 22 carries a first chassis assembly corresponding to a load-bearing vehicle model or a second chassis assembly corresponding to a non-load-bearing vehicle model on the side facing the body line 1.

[0070] When the clamping mechanism 12 and the lifting mechanism 22 are respectively moved to the assembly position, the lifting mechanism 22 is in a lifting state, and the first chassis assembly or the second chassis assembly is assembled with the corresponding vehicle body 102. It should be noted that the chassis assembly 103 in the drawings of the present application is the first chassis assembly or the second chassis assembly. With such an arrangement, the first chassis assembly or the second chassis assembly and the corresponding vehicle body 102 can be assembled at one time. It should be noted that the first chassis assembly or the second chassis assembly and the corresponding vehicle body 102 can be assembled by mechanical equipment or manually. The assembly in the embodiment of the present application refers to assembling and fixing the vehicle body 102 and the first chassis assembly or the second chassis assembly together.

[0071] By adopting the assembly production line provided in the embodiment of the present application, chassis assemblies of different vehicle models can be pre-assembled on the same lifting mechanism 22, so that different vehicle models can complete the assembly of the body 102 and the chassis assembly on the same assembly production line, without having to set up independent assembly lines with the body 102 for the chassis assemblies of different vehicle models. Therefore, load-bearing models and non-load-bearing models can share the same assembly production line, which not only reduces the space occupied by assembly production lines of different vehicle models, but also facilitates flexible production.

[0072] The following is combined with Figures 1 to 14 The details and functions of the assembly production line provided in the embodiment of the present application are described in more detail.

[0073] like Fig.10 As shown, in some embodiments, the lifting mechanism 22 includes a first transport vehicle 221, a first lifting assembly 222, and a second lifting assembly 223. The first lifting assembly 222 and the second lifting assembly 223 are respectively mounted on the first transport vehicle 221 in a liftable manner, and the first lifting assembly 222 and the second lifting assembly 223 are arranged side by side in the length direction of the vehicle body 102. It should be noted that the first lifting assembly 222 is arranged close to the front of the vehicle body 102, and the second lifting assembly 223 is arranged close to the rear of the vehicle body 102, so as to ensure that the first chassis assembly and the second chassis assembly can be lifted smoothly.

[0074] Combination Fig.10 As shown, in some embodiments, the first chassis assembly includes a first front suspension assembly, a first rear suspension assembly and a first power assembly, the first front suspension assembly and the first power assembly are located on the first lifting component 222 , and the first rear suspension assembly is located on the second lifting mechanism 22 .

[0075] The second chassis assembly includes a second front suspension assembly, a second rear suspension assembly, a second power assembly and a frame assembly. The two ends of the frame assembly are respectively located on the first lifting assembly 222 and the second lifting assembly 223, and the second front suspension assembly, the second rear suspension assembly and the second power assembly are respectively installed on the frame assembly.

[0076] Therefore, the forces on the first lifting assembly 222 and the second lifting assembly 223 are relatively uniform, and the first chassis assembly or the second chassis assembly can be lifted smoothly.

[0077] Combination Fig.10 As shown, in some embodiments, the lifting mechanism 22 further includes a third lifting assembly 229, the first lifting assembly 222 is located between the third lifting assembly 229 and the second lifting assembly 223, and the third lifting assembly 229 is installed on the first transport vehicle 221 in a liftable manner. It should be noted that the third lifting assembly 229 is used to lift and carry operators. When the chassis assembly 103 is assembled, the operator can stand on the third lifting assembly 229 to fix or check the position that needs to be fixed on the vehicle body 102 or the chassis assembly 103.

[0078] Combination Fig.10 As shown, in some embodiments, the first lifting assembly 222 includes a first lifting platform 225 and a first driving member 226, the fixed end of the first driving member 226 is connected to the first transport vehicle 221, and the driving end of the first driving member 226 is connected to the first lifting platform 225 to drive the first lifting platform 225 to rise or fall. The first lifting platform 225 is used to carry the first front suspension assembly and the first power assembly, or to carry the part of the frame assembly opposite to the front of the vehicle body 102. The second lifting assembly 223 includes a second lifting platform 227 and a second driving member 228, the fixed end of the second driving member 228 is connected to the first transport vehicle 221, and the driving end of the second driving member 228 is connected to the second lifting platform 227 to drive the second lifting platform 227 to rise or fall. The second lifting platform 227 is used to carry the first rear suspension assembly, or to clamp the part of the frame assembly opposite to the rear of the vehicle body 102. With such an arrangement, the first chassis assembly and the second chassis assembly can be lifted flexibly and smoothly.

[0079] like Figure 7 As shown, in some embodiments, the assembly production line further includes an adjustment line 3 , and the adjustment line 3 includes a lifting mechanism 31 , a third conveying line 32 and an adjustment device 33 .

[0080] The lifting mechanism 31 is connected to the third conveyor line 32. When the lifting mechanism 31 is in the lowered position, the third conveyor line 32 is connected to the first conveyor line 11. At this time, the clamping mechanism 12 can be moved from the first conveyor line 11 to the third conveyor line 32. When the lifting mechanism 31 is in the raised position, the third conveyor line 32 is located above the first conveyor line 11. At this time, the lifting mechanism 31 can lift the clamping mechanism 12 through the third conveyor line 32. It should be noted that before the lifting mechanism 31 is in the raised position, the clamping mechanism 12 is in a released state to be separated from the vehicle body 102.

[0081] The adjustment device 33 is used to adjust the current clamping position of the clamping mechanism 12 moved to the third conveyor line 32 to the target clamping position. It should be noted that after the body 102 of different models is assembled with the chassis assembly, the center of gravity position will change. Using the adjustment device 33 to adjust the clamping mechanism 12 to the target clamping position is equivalent to readjusting the clamping position of the clamping mechanism 12 after the body 102 and the chassis assembly are assembled, so as to ensure that after the center of gravity changes, the clamping mechanism 12 can still stably clamp the assembled body 102 and chassis assembly, thereby avoiding the body 102 and the chassis assembly from being offset. Such a setting allows the load-bearing model and the non-load-bearing model to share the same clamping mechanism 12, thereby meeting the needs of co-production of load-bearing models and non-load-bearing models, and is conducive to realizing the flexibility of the assembly line.

[0082] like Figures 2 to 7 as well as Fig.11 As shown, in some embodiments, the lifting mechanism 31 includes a first lift 311 , an adjustment platform 312 , and a second lift 313 , and the first lift 311 and the second lift 313 are respectively located on both sides of the adjustment platform 312 .

[0083] The third conveyor line 32 includes a first sub-conveyor line 321, a second sub-conveyor line 322 and a third sub-conveyor line 323. The first sub-conveyor line 321 is located between the first conveyor line 11 and the second sub-conveyor line 322. The second sub-conveyor line 322 is located between the first sub-conveyor line 321 and the third sub-conveyor line 323. The first sub-conveyor line 321 is connected to the first elevator 311.

[0084] The adjusting device 33 is installed on the adjusting platform 312 , and the adjusting platform 312 is located below the second sub-conveying line 322 .

[0085] Among them, when the first elevator 311 is in the descending position, the first sub-conveyor line 321 is connected to the first conveyor line 11. At this time, the clamping mechanism 12 can move from the first conveyor line 11 to the first sub-conveyor line 321. When the first elevator 311 is in the ascending position, the first sub-conveyor line 321 is connected to the second sub-conveyor line 322. At this time, the first elevator 311 lifts the clamping mechanism 12 through the first sub-conveyor line 321, and the clamping mechanism 12 can move from the first sub-conveyor line 321 to the second sub-conveyor line 322, and the clamping position of the clamping mechanism 12 is adjusted to the target clamping position by the adjustment device 33. It should be understood that before the first elevator 311 is raised, the clamping mechanism 12 is in a released state, that is, the clamping mechanism 12 is separated from the vehicle body 102. When the second elevator 313 is in the ascending position, the second sub-conveyor line 322 is connected to the third sub-conveyor line 323. At this time, the clamping mechanism 12 can move from the second sub-conveyor line 322 to the third sub-conveyor line 323.

[0086] When the second lift 313 is in the descending position, the third sub-conveyor line 323 is located below the second sub-conveyor line 322, so that the clamping mechanism 12 clamps the vehicle body 102. In this way, the clamping mechanism 12 can be first lifted by the first lift 311 to a height misalignment with the vehicle body 102, and then moved to the second sub-conveyor line 322 to be adjusted by the adjusting device 33 to adjust the clamping position. The first transport vehicle 221 moves along the second conveyor line 21 to the bottom of the third sub-conveyor line 323, and then the second lift 313 is used to drive the clamping mechanism 12 to descend to re-clamp the assembled vehicle body 102 and chassis assembly. In this way, it can prevent the clamping mechanism 12 from colliding with the vehicle body 102 when adjusting the clamping mechanism 12, and ensure that the assembled vehicle body 102 and chassis assembly are stably clamped after the clamping mechanism 12 is adjusted twice, thereby meeting the needs of co-production of load-bearing models and non-load-bearing models, which is conducive to realizing the flexibility of the assembly line.

[0087] like Figures 2 to 7 As shown, in some embodiments, the clamping mechanism 12 includes at least two clamping jaws 121, and the two clamping jaws 121 are respectively located on both sides of the vehicle body 102. The adjustment mechanism includes at least two driving cylinders, and the driving cylinders correspond to the clamping jaws 121 one by one, so as to adjust the position of the clamping jaws 121, thereby adjusting the clamping position of the clamping jaws 121 of the clamping mechanism 12 to the target clamping position.

[0088] like Figure 8 As shown, in some embodiments, the assembly line further includes a transfer device 4, which includes a pallet mechanism 41 and a transfer mechanism 42. The pallet mechanism 41 includes a second transport vehicle 411 and a pallet assembly 412, the pallet assembly 412 is carried on the second transport vehicle 411, and the pallet assembly 412 is pre-assembled with the first chassis assembly or the second chassis assembly.

[0089] The transfer mechanism 42 includes a transfer bracket 43 and a transfer arm 44. The transfer arm 44 can be movably mounted on the transfer bracket 43. The transfer arm 44 moves between the second transport vehicle 411 and the first transport vehicle 221. The transfer arm 44 can clamp or release the pallet assembly 412. In this way, the transfer arm 44 can first clamp the pallet assembly 412 pre-installed with the first chassis assembly or the second chassis assembly, and then transfer the pallet assembly 412 and its pre-installed chassis assembly to the first transport vehicle 221. Finally, the transfer arm 44 releases the pallet assembly 412, so that the pallet assembly 412 and its pre-installed chassis assembly are placed on the first transport vehicle 221, and then the first transport vehicle 221 can be moved along the second transport line to the assembly position and assembled with the vehicle body 102.

[0090] like Fig. 9 As shown, in some embodiments, the tray assembly 412 includes a first tray 413 and a second tray 414, and the first tray 413 and the second tray 414 are arranged side by side in the length direction of the vehicle body 102. It should be noted that the first tray 413 is arranged opposite to the first lifting platform 225, and the second tray 414 is arranged opposite to the second lifting platform 227. In some embodiments, a first clamp is installed on the first tray 413, and a second clamp is installed on the second tray 414. The first clamp clamps the first front suspension assembly and the first power assembly, or the first clamp clamps the part of the frame assembly opposite to the front of the vehicle body 102. The second clamp clamps the first rear suspension assembly, or the second clamp clamps the part of the frame assembly opposite to the rear of the vehicle body 102. Before the vehicle body 102 is assembled with the chassis assembly, the first clamp and the second clamp are in a clamping state; after the vehicle body 102 is assembled with the chassis assembly, the first clamp and the second clamp are in a released state. This ensures that the chassis assembly maintains a stable position before being assembled with the vehicle body 102, and also ensures that the assembled vehicle body 102 and chassis assembly can be clamped by the clamping mechanism 12 to the next assembly line to complete the assembly of the vehicle. It can be understood that the second front suspension assembly, the second rear suspension assembly and the second power assembly are preassembled on the frame assembly.

[0091] The transfer arm 44 includes a first arm 441 and a second arm 442, which are arranged side by side in the length direction of the vehicle body 102, the first arm 441 is opposite to the first tray 413, and the second arm 442 is opposite to the second tray 414. It should be understood that the first arm 441 can clamp or release the first tray 413, and the second arm 442 can clamp or release the second tray 414. It should be noted that by setting the transfer arm 44 with double arms, it is possible to ensure that the front and rear forces of the chassis assembly are balanced, so that the synchronous transfer requirements of each assembly in the first chassis assembly or the second chassis assembly can be achieved, and when the second chassis assembly is lifted, the frame assembly with the second front suspension assembly and the second rear suspension assembly respectively installed at the front and rear parts is prevented from deviating and falling, and other unsafe situations, that is, the safety of the transfer process is improved.

[0092] like Fig.12 As shown, in some embodiments, the assembly line includes a controller 5, and the controller 5 is electrically connected to the clamping mechanism 12 and the lifting mechanism 22. It should be noted that the controller 5 can transmit signals or commands to the clamping mechanism 12 and the lifting mechanism 22, respectively. Thus, the clamping mechanism 12 is controlled to be in a clamping state or a releasing state, and the lifting mechanism 22 is controlled to be in a lifting state or a lowering state.

[0093] like Figure 1 As shown, in some embodiments, the assembly line further includes a first interior decoration line 6 and a first interior decoration assembly device. The first interior decoration line 6 includes a first slide conveyor line and a third elevator. The third elevator transfers the painted vehicle body 102 to the first slide conveyor line. The first slide conveyor line transports the vehicle body 102 to the first interior decoration assembly device. The first interior decoration assembly device is used to perform the first interior decoration assembly on the vehicle body 102. The first slide conveyor line docks with the first conveyor line 11 to transport the vehicle body 102 to a position opposite to the clamping mechanism 12. The clamping mechanism 12 clamps the vehicle body 102.

[0094] like Figure 1 As shown, in some embodiments, the assembly line also includes a battery assembly line 7, the battery assembly line 7 includes a third transport vehicle and a fourth conveyor line, the fourth conveyor line is connected to the third sub-transport line, the third transport vehicle carries the battery assembly, and the clamping mechanism 12 moves from the third sub-transport line to the fourth conveyor line and is opposite to the third transport vehicle, and assembles the battery assembly on the vehicle body 102 or the frame. It should be noted that the first transport vehicle 221, the second transport vehicle 411 and the third transport vehicle in the embodiment of the present application can be, for example, AGV (Automated Guided Vehicle).

[0095] like Figure 1As shown, in some embodiments, the assembly production line also includes a second interior line 8 and a second interior assembly device. The second interior line 8 includes a second skateboard conveyor line. The second skateboard conveyor line is connected to the fourth conveyor line and is used to transport the whole vehicle with the battery installed to the second interior assembly device. The second interior assembly device is used to perform a second interior assembly on the whole vehicle.

[0096] like Figure 1 As shown, in some embodiments, the assembly production line also includes a tire line 9, and the tire assembly line includes a roller conveyor line and a fourth elevator. The fourth elevator transports the tire assembly along the roller conveyor line to the bottom of the vehicle that has completed the second interior assembly, so as to complete the assembly of the tire assembly with the vehicle body 102 or the chassis assembly.

[0097] like Figure 1 As shown, in some embodiments, the assembly line further includes an adjustment line 10, which includes a fifth elevator, a third slide conveyor line and at least one adjustment station. The fifth elevator is used to transfer the vehicle body 102 that has completed the second interior decoration assembly to the third slide conveyor line, and the third slide conveyor line can be, for example, a ring-shaped slide conveyor line. The third conveyor line 32 transports the vehicle body 102 that has completed the second interior decoration to each adjustment station, so that the whole vehicle can be filled, adjusted, inspected and other related work in the adjustment station.

[0098] like Figure 1 As shown, in some embodiments, the assembly production line further includes a test line 101, the test line 101 includes a fifth conveyor line and at least one test station, the fifth conveyor line is connected to the third skateboard conveyor line, and the whole vehicle can be moved from the third skateboard conveyor line to the fifth conveyor line. The fifth conveyor line transports the whole vehicle adjusted by the adjustment station to each test station, so that the relevant functions of the whole vehicle can be calibrated or tested in the test station, such as calibration and testing of four wheels, lights, side slip, wheel hub, AVM, ADAS, etc.

[0099] It should be noted that the assembly line also includes a door subassembly line for assembling doors on the vehicle body 102, a frame assembly subassembly line for mounting the frame assembly on the tray mechanism 41, an instrument panel subassembly line for mounting the instrument panel, a road test line for road testing the whole vehicle, a rain test line for rain testing the whole vehicle, and a final inspection line for individual inspections of the whole vehicle. The above lines can be arranged at corresponding positions on the assembly line according to requirements, and the embodiments of the present application do not limit them one by one.

[0100] From the above, it can be seen that by adopting the assembly production line provided in the embodiment of the present application, the whole vehicle assembly of both load-bearing vehicles and non-load-bearing vehicles can be produced on the same line, which not only reduces the space occupied by assembly production lines of different models, but also facilitates flexible production.

[0101] like Fig.13 As shown, on the other hand, an embodiment of the present application further provides an assembly method, which can be executed by a controller 5. The assembly method is used to control the assembly production line of any one of the above-mentioned embodiments of the present application, and the assembly method includes the following steps 201 to 202.

[0102] In step 201 , the controller 5 determines the current positions of the clamping mechanism 12 and the lifting mechanism 22 .

[0103] In step 202 , the controller 5 generates a first lifting instruction in response to the clamping mechanism 12 and the lifting mechanism 22 both moving to the assembly position.

[0104] The first lifting instruction is used to instruct the lifting mechanism 22 to switch from the lowering state to the lifting state. In this way, when the clamping mechanism 12 and the lifting mechanism 22 both reach the assembly position, the lifting mechanism 22 switches to the lifting state, so that the vehicle body 102 and the chassis assembly can be assembled.

[0105] It should be noted that the multiple lifting mechanisms 22 and the clamping mechanisms 12 in the embodiment of the present application are respectively the same in composition and function as the lifting mechanisms 22 and the clamping mechanisms 12 described in any one of the above-mentioned embodiments of the present application, so the embodiments of the present application are not repeated here.

[0106] In some embodiments, a first position detector is installed at the assembly position, and the first position detector is electrically connected to the controller 5. The first position detector is used to detect the position of the clamping mechanism 12 and the position of the lifting mechanism 22. In response to the clamping mechanism 12 and the lifting mechanism 22 both reaching the assembly position, the first position detector generates an assembly signal. In response to receiving the assembly signal, the controller 5 generates a first lifting instruction. In response to receiving the first lifting instruction, the lifting mechanism 22 switches to a lifting state to lift the first chassis assembly or the second chassis assembly to a preset height. In this way, the vehicle body 102 and the chassis assembly can be assembled together in time, avoiding the need for multiple components to be assembled separately with the vehicle body 102, thereby improving assembly efficiency. At the same time, since the lifting mechanism 22 can carry multiple first chassis assemblies corresponding to the load-bearing vehicle model and multiple second chassis assemblies corresponding to the non-load-bearing vehicle model, the two vehicle models can share the same assembly line, so there is no need to set up separate assembly lines for the two vehicle models, reducing the area occupied by the assembly line, and facilitating flexible production.

[0107] like Fig.14 As shown, on the other hand, the embodiment of the present application further provides an assembly method, which can be executed by the controller 5. The assembly method is used to control the assembly production line of any of the above embodiments of the present application, and the assembly method includes the following steps 301 to 303.

[0108] In step 301 , the controller 5 determines the current positions of the clamping mechanism 12 and the lifting mechanism 22 .

[0109] In step 302 , the controller 5 generates a first lifting instruction in response to the clamping mechanism 12 and the lifting mechanism 22 both moving to the assembly position.

[0110] The first lifting instruction is used to instruct the lifting mechanism 22 to change from the landing state to the lifting state. It should be noted that step 302 is the same as step 202, so the embodiment of the present application will not be repeated here.

[0111] In step 303 , the controller 5 generates a first adjustment instruction in response to the clamping mechanism 12 moving to the adjustment position.

[0112] The first adjustment instruction is used to instruct to adjust the current clamping position of the clamping mechanism 12 to a target clamping position, and the adjustment position is a position corresponding to the adjustment device 33 of the adjustment line 3.

[0113] In some embodiments, a second position detector electrically connected to the controller 5 is provided at the adjustment position. The second position detector is used to detect the position of the clamping mechanism 12. The second position detector generates an adjustment signal in response to the clamping mechanism 12 reaching the adjustment position. In response to receiving the adjustment signal, the controller 5 generates a first adjustment instruction.

[0114] In some embodiments, step 303 includes the following three steps:

[0115] In the first step, the controller 5 obtains the target identifier corresponding to the vehicle body 102 currently clamped by the clamping mechanism 12 in response to the clamping mechanism 12 moving to the adjustment position.

[0116] In some embodiments, the target identifier is a number or image corresponding to the vehicle body 102 currently clamped by the clamping mechanism 12 , and the target identifier is used to indicate the type of the vehicle body 102 , such as a load-bearing vehicle type or a non-load-bearing vehicle type.

[0117] In the second step, the controller 5 determines the target clamping position corresponding to the target identifier based on the target identifier.

[0118] Among them, the target clamping position corresponds to the target identifier one by one, so that the vehicle model currently clamped by the clamping mechanism 12 can be determined according to the target identifier, and then the target clamping position corresponding to the vehicle model can be determined. It should be noted that after the body 102 of different vehicle models is assembled with the chassis assembly, the center of gravity position will change. By using the assembly method provided in the embodiment of the present application, the clamping position of the clamping mechanism 12 can be adjusted in time after the body 102 and the chassis assembly are assembled, thereby avoiding the phenomenon of tilting when the assembled body 102 and the chassis assembly are clamped, thereby improving the safety of the assembly process.

[0119] In the third step, the controller 5 generates a first adjustment instruction based on the target clamping position.

[0120] By adopting the assembly method of the present application, the clamping position of the clamping mechanism 12 can be readjusted according to different vehicle models after the vehicle body 102 and the chassis assembly are assembled, so as to re-clamp the vehicle body 102 and the chassis assembly assembled with the vehicle body 102. In this way, the same assembly line can meet the clamping and transfer requirements of different vehicle models, so that there is no need to equip different vehicle models with independent assembly lines, thereby reducing the space occupied by assembly lines of different vehicle models, and is also conducive to realizing flexible production.

[0121] In some embodiments, the assembly method further includes: the controller 5 controls the first elevator 311 to rise from the lowered position to the raised position in response to the clamping mechanism 12 arriving at the first sub-conveyor line 321, thereby driving the clamping mechanism 12 to rise and enabling the clamping mechanism 12 to move to the second sub-conveyor line 322. In response to the clamping position of the clamping mechanism 12 being adjusted to the target clamping position, the controller 5 controls the second elevator 313 to rise from the lowered position to the raised position, so that the clamping mechanism 12 can move from the second sub-conveyor line 322 to the third sub-conveyor line 323. In response to the clamping mechanism 12 being located on the third sub-conveyor line 323 and the lifting mechanism 22 having moved to the bottom of the third sub-conveyor line 323, the controller 5 controls the second elevator 313 to descend from the raised position to the lowered position, and controls the clamping mechanism 12 to clamp the vehicle body 102 with the chassis assembly assembled thereon.

[0122] By adopting the assembly method provided in the embodiment of the present application, after the vehicle body 102 and the chassis assembly are assembled, the clamping position of the clamping mechanism 12 can be readjusted for different vehicle models, and the vehicle body 102 assembled with the chassis assembly can be re-clamped, thereby ensuring the safety of the transportation process and enabling different vehicle models to be assembled on the same line, which is conducive to realizing flexible production.

[0123] In the present application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless otherwise clearly defined.

[0124] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the present application disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only.

[0125] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. An assembly production line, characterized in that: The assembly production line comprises a body line (1) and a chassis assembly line (2); The vehicle body line (1) comprises a first conveying line (11) and a clamping mechanism (12), wherein the clamping mechanism (12) moves along the first conveying line (11), and the clamping mechanism (12) is used to clamp the vehicle body; The chassis assembly line (2) comprises a second conveyor line (21) and a lifting mechanism (22), wherein the lifting mechanism (22) moves along the second conveyor line (21), the vehicle body line (1) is located above the chassis assembly line (2), and the lifting mechanism (22) carries a first chassis assembly corresponding to a load-bearing vehicle model or a second chassis assembly corresponding to a non-load-bearing vehicle model on a side of the vehicle body line (1); When the clamping mechanism (12) and the lifting mechanism (22) are respectively moved to the assembly position, the lifting mechanism (22) is in a lifting state, and the first chassis assembly or the second chassis assembly is assembled with the corresponding vehicle body.

2. The assembly line according to claim 1, characterized in that: The lifting mechanism (22) comprises a first transport vehicle (221), a first lifting assembly (222) and a second lifting assembly (223); The first lifting assembly (222) and the second lifting assembly (223) are respectively installed on the first transport vehicle (221) in a liftable manner, and the first lifting assembly (222) and the second lifting assembly (223) are arranged side by side in the length direction of the vehicle body.

3. The assembly line according to claim 1, characterized in that: The assembly production line further comprises an adjustment line (3), wherein the adjustment line (3) comprises a lifting mechanism (31), a third conveying line (32) and an adjustment device (33); The lifting mechanism (31) is connected to the third conveying line (32); when the lifting mechanism (31) is in a descending position, the third conveying line (32) is connected to the first conveying line (11); when the lifting mechanism (31) is in an ascending position, the third conveying line (32) is located above the first conveying line (11); The adjustment device (33) is used to adjust the current clamping position of the clamping mechanism (12) moved to the third conveying line (32) to a target clamping position.

4. The assembly line according to claim 3, characterized in that: The lifting mechanism (31) comprises a first lift (311), an adjustment platform (312) and a second lift (313), wherein the first lift (311) and the second lift (313) are respectively located on two sides of the adjustment platform (312); The third conveyor line (32) comprises a first sub-conveyor line (321), a second sub-conveyor line (322) and a third sub-conveyor line (323), the first sub-conveyor line (321) is located between the first conveyor line (11) and the second sub-conveyor line (322), the second sub-conveyor line (322) is located between the first sub-conveyor line (321) and the third sub-conveyor line (323), and the first sub-conveyor line (321) is connected to the first elevator (311); The adjustment device (33) is installed on the adjustment platform (312), and the adjustment platform (312) is located below the second sub-conveying line (322); Wherein, when the first elevator (311) is in a descending position, the first sub-conveyor line (321) is connected to the first conveyor line (11); when the first elevator (311) is in an ascending position, the first sub-conveyor line (321) is connected to the second sub-conveyor line (322); when the second elevator (313) is in an ascending position, the second sub-conveyor line (322) is connected to the third sub-conveyor line (323); when the second elevator (313) is in a descending position, the third sub-conveyor line (323) is located below the second sub-conveyor line (322), so that the clamping mechanism (12) clamps the vehicle body.

5. The assembly line according to claim 1, characterized in that: The assembly production line further comprises a transfer hanging device (4), wherein the transfer hanging device (4) comprises a tray mechanism (41) and a transfer hanging mechanism (42); The pallet mechanism (41) comprises a second transport vehicle (411) and a pallet assembly (412); the pallet assembly (412) is mounted on the second transport vehicle (411); the pallet assembly (412) is pre-assembled with the first chassis assembly or the second chassis assembly; The transfer hanging mechanism (42) includes a transfer hanging bracket (43) and a transfer hanging arm (44), wherein the transfer hanging arm (44) can be movably mounted on the transfer hanging bracket (43), and the transfer hanging arm (44) moves between the second transport vehicle (411) and the first transport vehicle (221), and the transfer hanging arm (44) can clamp or release the pallet assembly (412).

6. The assembly line according to claim 5, characterized in that: The tray assembly (412) comprises a first tray (413) and a second tray (414), wherein the first tray (413) and the second tray (414) are arranged side by side in the length direction of the vehicle body; The rotating hanging arm (44) comprises a first hanging arm (441) and a second hanging arm (442), wherein the first hanging arm (441) and the second hanging arm (442) are arranged side by side in the length direction of the vehicle body, the first hanging arm (441) is opposite to the first pallet (413), and the second hanging arm (442) is opposite to the second pallet (414).

7. The assembly line according to claim 1, characterized in that: The assembly production line comprises a controller (5), and the controller (5) is electrically connected to the clamping mechanism (12) and the lifting mechanism (22) respectively.

8. An assembly method, characterized in that: The assembly method is used to control the assembly production line according to any one of claims 1 to 7, and the assembly method comprises: Determining the current positions of the clamping mechanism (12) and the lifting mechanism (22); In response to the clamping mechanism (12) and the lifting mechanism (22) both moving to the assembled position, a first lifting instruction is generated, wherein the first lifting instruction is used to instruct the lifting mechanism (22) to change from a lowering state to a lifting state.

9. The assembly method according to claim 8, characterized in that: The assembly method further comprises: In response to the clamping mechanism (12) moving to the adjustment position, a first adjustment instruction is generated, wherein the first adjustment instruction is used to instruct to adjust the current clamping position of the clamping mechanism (12) to a target clamping position.

10. The assembly method according to claim 9, characterized in that: In response to the clamping mechanism (12) moving to the adjustment position, generating a first adjustment instruction comprises: In response to the clamping mechanism (12) moving to the adjustment position, obtaining a target identifier corresponding to the vehicle body currently clamped by the clamping mechanism (12); Based on the target identifier, determining the target clamping position corresponding to the target identifier; Based on the target clamping position, a first adjustment instruction is generated.

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