A method and line for the production of a vehicle body

Abstract

The application relates to the technical field of carriage assembly production, in particular to a carriage assembly production method and a production line. The carriage assembly production method comprises the following steps: placing a carriage on a collecting and assembling roller line and completing assembly, and conveying the carriage along the collecting and assembling roller line; transferring part of the carriages offline, and transferring the remaining carriages to a roller conveying line; transferring the carriages on the roller conveying line to a single-plate chain conveyor, and completing part assembly; transferring part of the carriages on the single-plate chain conveyor to outside a workshop, and transferring the other part of the carriages to a main plate chain; conveying a chassis from a storage area to the main plate chain, and assembling the carriages transferred to the main plate chain to the chassis. The application provides a carriage assembly production method and a production line, so as to solve the problems of a large number of customized carriage types, no corresponding carriage production line and low production efficiency in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of carriage assembly production, in particular to a carriage assembly production method and production line. BACKGROUND

[0002] At present, a complete production line is provided for carriage assembly. For the case of single or less variety of carriages, the subsequent assembly can be highly automated after the carriage is discharged from painting, which requires high equipment investment, but can realize standardized vehicle assembly.

[0003] However, for carriages with multiple varieties, small batch size, co-line production of marker carriages and van carriages, and customized carriages according to customers, due to the large number of varieties, there is no corresponding production line, and a low-cost automated production line with reasonable process and high flexibility and high efficiency needs to be considered. SUMMARY

[0004] Embodiments of the present application provide a carriage assembly production method and production line to solve the problem of low production efficiency due to the large number of customized carriage varieties without corresponding carriage production lines in related technologies.

[0005] In a first aspect, a carriage assembly production method is provided, which includes the following steps:

[0006] Placing the carriage on the assembly roller line and completing the assembly, and conveying the carriage along the assembly roller line;

[0007] Transferring part of the carriages offline, and transferring the remaining carriages to the roller conveying line;

[0008] Transferring the carriages on the roller conveying line to the single plate chain conveyor to complete the assembly of parts;

[0009] Transferring part of the carriages on the single plate chain conveyor to outside the factory building, and transferring the other part of the carriages to the main plate chain;

[0010] Conveying the chassis from the storage area to the main plate chain, and assembling the carriage transferred to the main plate chain to the chassis.

[0011] In some embodiments, the carriage includes a van and a marker carriage;

[0012] Placing the carriage on the assembly roller line and completing the assembly includes:

[0013] Storing the side plate, front plate and rear plate of the marker carriage on the accumulation chain;

[0014] Conveying the bottom plate of the van and the marker carriage along the assembly roller line, and pre-assembling the bottom plate, side plate, front plate and rear plate of the marker carriage on the assembly roller line.

[0015] In some embodiments, the conveying end of the roller conveying line is provided with a first transfer roller bed, the roller conveying line is arranged in parallel with the roller conveying line, and a first trolley is arranged on the roller conveying line.

[0016] The partial carriages are transferred offline, and the remaining carriages are transferred onto the roller conveying line, including:

[0017] The partial carriages are transferred offline using the first trolley, and the remaining carriages are transferred onto the roller conveying line using the first transfer roller bed.

[0018] In some embodiments, the roller conveying line includes a plurality of fixed roller beds arranged in the conveying direction of the roller conveying line, and a second trolley is arranged on the roller conveying line and the roller conveying line.

[0019] When the remaining carriages are transferred onto the roller conveying line, it further includes:

[0020] The carriages on the roller conveying line and the roller conveying line are sequenced using the second trolley and placed on the fixed roller bed.

[0021] In some embodiments, the conveying end of the roller conveying line is provided with a second transfer roller bed.

[0022] The carriages on the roller conveying line are transferred to the single-board chain conveyor, and the part assembly is completed, including:

[0023] The carriages are transferred to the second transfer roller bed, and the second transfer roller bed transfers the carriages to the single-board chain conveyor to complete the part assembly.

[0024] In some embodiments, the conveying direction of the roller conveying line is opposite to the conveying direction of the single-board chain conveyor, the roller conveying line is arranged in parallel with the single-board chain conveyor, and a rotating roller bed is arranged at the conveying end of the roller conveying line and the conveying starting section of the single-board chain conveyor.

[0025] In some embodiments, the carriages include vans and marker carriages, and transferring the carriages on the roller conveying line to the single-board chain conveyor includes:

[0026] If a marker carriage is detected, the rotating roller bed transfers the marker carriage to the single-board chain conveyor;

[0027] If a skid is detected, the skid is transferred offline through the first motorized roller bed.

[0028] In some embodiments, after the carriages on the roller conveying line are transferred to the single-board chain conveyor to complete the part assembly, it further includes:

[0029] The carriages are transferred to the fifth transfer roller bed, and the carriages are lifted using a lifting device for angle iron assembly work.

[0030] In some embodiments, the single-board chain conveyor is provided with a fourth trolley and a fifth trolley on the main board chain.

[0031] The part of the carriage on the single-board chain conveyor is transferred outside the factory building, and the other part of the carriage is transferred to the main board chain, which comprises:

[0032] The part of the carriage on the single-board chain conveyor is lifted outside the factory building using the fourth trolley, and the other part of the carriage is transferred to the main board chain using the fifth trolley.

[0033] In a second aspect, a carriage assembly production line is provided, which comprises:

[0034] A collecting and distributing roller line for assembling and conveying the carriage;

[0035] A roller conveying line;

[0036] A first transfer roller bed for transferring part of the carriage from the collecting and distributing roller line to the roller conveying line;

[0037] A single-board chain conveyor for part assembly of the carriage;

[0038] A second transfer roller bed for transferring part of the carriage from the roller conveying line to the single-board chain conveyor;

[0039] A main board chain for assembling the carriage to the chassis;

[0040] A fifth trolley for transferring part of the carriage from the single-board chain conveyor to the main board chain;

[0041] The carriage assembly production line is sequentially arranged in the order of the collecting and distributing roller line, the roller conveying line, the single-board chain conveyor, and the main board chain.

[0042] The technical solutions provided by the present application have the following beneficial effects:

[0043] The present application provides a carriage assembly production method and production line. Since the collecting and distributing roller line, the roller conveying line, the single-board chain conveyor, and the main board chain are separately arranged, and the work stations are arranged at two nodes (i.e., when the production line is converted), specifically, at the intersection of the collecting and distributing roller line and the roller conveying line, part of the carriage is transferred offline, and part of the carriage enters the roller conveying line for the next operation. Similarly, at the intersection of the single-board chain conveyor and the main board chain, part of the carriage is offline, i.e., does not perform the next assembly with the chassis, and the other part enters the main board chain for assembly with the chassis.

[0044] Some of the cars that come off the production line are differentiated cars that are not assembled on the main line, purchased cars (separate cars without chassis), or cars that do not need to be painted. These cars are produced at different workstations, which enables the co-production of multiple varieties and small batches of cars on the same line. Therefore, it can solve the problem of low production efficiency caused by the lack of corresponding car production lines due to the large variety of customized cars in related technologies. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 A schematic diagram of a first embodiment of the carriage assembly production line provided in this application;

[0047] Figure 2 This is a schematic diagram of a second embodiment of the carriage assembly production line provided in this application.

[0048] In the diagram: 1. Gathering and distribution roller conveyor line; 2. Roller conveyor line; 3. Single plate chain conveyor; 4. Main chain; 5. Carriage; 6. Accumulation chain; 7. First car; 8. Second car; 9. Third car; 10. Fourth car; 11. Fifth car; 12. First transfer roller bed; 13. Second transfer roller bed; 14. Third transfer roller bed; 15. Fourth transfer roller bed; 16. Fifth transfer roller bed; 17. First motorized roller bed; 18. Second motorized roller bed; 19. Third motorized roller bed; 20. First rotating roller bed; 21. Second rotating roller bed; 22. Lifting platform; 23. Fixed roller bed; 24. Storage area; 25. Off-line area. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0050] This application provides a method for assembling and producing carriages, which can solve the problem of low production efficiency caused by the lack of corresponding carriage production lines due to the wide variety of customized carriages in related technologies.

[0051] See Figures 1 to 2As shown, a method for assembling and producing a carriage is provided, which includes the following steps:

[0052] S100. Place the carriage 5 on the distribution roller conveyor 1 and complete the assembly, and transport the carriage 5 along the distribution roller conveyor 1.

[0053] Specifically, the carriage 5 includes a box-type car and a standard car. The standard car includes side panels, a front panel, a rear panel, and a floor panel. Placing the carriage 5 on the distribution roller conveyor line 1 and completing the assembly also includes:

[0054] S101. Store the side panels, front panel and rear panel of the standard box assembly on the stacking chain 6;

[0055] The floorboards of the vans and standard vans are transported along the distribution roller conveyor line 1, and the floorboards, sideboards, front board and rear board of the standard vans are pre-assembled on the distribution roller conveyor line 1.

[0056] Specifically, in combination Figure 1 As shown, the accumulation chain 6 is set along the conveying direction of the collection and distribution roller conveyor 1 and is set on both sides of the collection and distribution roller conveyor 1. After the side plates, front plates and rear plates are off the line, they are stored on the accumulation chain 6 on both sides of the collection and distribution roller conveyor 1. After the box truck and standard box bottom plate are off the line, they are conveyed along the collection and distribution roller conveyor 1. An assist device can be set in the area of ​​the collection and distribution roller conveyor 1 to collect and pre-assemble the side, front and rear plates corresponding to the bottom plate of the standard box according to the production plan.

[0057] S200: Transfer some of the carriages 5 off the line and transfer the remaining carriages 5 to the roller conveyor line 2;

[0058] Specifically, in combination Figure 1 As shown, a first transferring roller bed 12 is provided at the conveying end of the distribution roller conveyor line 1. The distribution roller conveyor line 1 is arranged parallel to the roller conveyor line 2, and a first moving car 7 is provided on the distribution roller conveyor line 1. The first moving car 7 is used to transfer some of the carriages 5 off the line, including differentiated carriages that are not assembled on the main line. The first transferring roller bed 12 is used to transfer the remaining carriages 5 to the roller conveyor line 2 for the next assembly step. The carriages 5 include purchased carriages or carriages that do not require painting (such as aluminum alloy carriages).

[0059] Therefore, this step specifically includes:

[0060] The first car 7 is used to transfer some of the carriages 5 off the line, and the first transfer roller bed 12 is used to transfer the remaining carriages 5 to the roller conveyor line 2.

[0061] Furthermore, combined Figure 1As shown, the roller conveyor line 2 includes multiple fixed roller beds 23 arranged along the conveying direction of the roller conveyor line 2. The fixed roller beds 23 can store a certain number of carriages 5, and a second carriage 8 is arranged on the collection and distribution roller conveyor line 1 and the roller conveyor line 2; when transferring the remaining carriages 5 to the roller conveyor line 2, step S201 is also included:

[0062] On the second day, car 8 will rearrange the carriages 5 on roller conveyor line 2 and distribution roller conveyor line 1 and place them on fixed roller bed 23.

[0063] Specifically, the fixed roller bed 23 on the roller conveyor line 2 stores the pre-assembled carriages 5. According to the processing status of the chassis, the carriages 5 that match the chassis that have been processed need to be selected first. On the second day, the car 8 adjusts the order of the carriages 5 according to the matching status of the carriages 5, and adjusts the carriages 5 that are processed first to the end closer to the next production line, so as to improve processing efficiency.

[0064] S300: Transfer the carriage 5 on roller conveyor line 2 to single-plate chain conveyor 3 to complete parts assembly. Specifically, the assembly of lights and wiring harnesses, as well as door lock seats, door stop seats and reflective stickers, needs to be completed on single-plate chain conveyor 3, and the locking rods need to be adjusted and the bolts tightened.

[0065] Specifically, in combination Figure 2 As shown, a second transfer roller bed 13 is provided at the end of the roller conveyor line 2. The second transfer roller bed 13 is used to transfer the carriage 5 onto the single-plate chain conveyor 3. Therefore, this step specifically includes: transferring the carriage 5 onto the second transfer roller bed 13, and the second transfer roller bed 13 transferring the carriage 5 onto the single-plate chain conveyor 3 to complete the parts assembly.

[0066] Furthermore, combined Figure 2 As shown, the conveying direction of the roller conveyor line 2 is parallel to the track of the single-plate chain conveyor 3, and the conveying direction of the roller conveyor line 2 is opposite to that of the single-plate chain conveyor 3. Rotary roller beds are provided at the conveying end of the roller conveyor line 2 and the conveying start section of the single-plate chain conveyor 3. Specifically, the rotary roller beds include a first rotary roller bed 20 and a second rotary roller bed 21, wherein the first rotary roller bed 20 is located at the conveying end of the roller conveyor line 2, and the second rotary roller bed 21 is located at the conveying start section of the single-plate chain conveyor 3.

[0067] Furthermore, since the conveying direction of roller conveyor 2 is opposite to that of single-plate chain conveyor 3, it is necessary to turn the carriage 5 around. Therefore, transferring the carriage on roller conveyor 2 to single-plate chain conveyor 3 includes:

[0068] The second transferring roller bed 13 is connected to the carriage 5 from the roller conveyor line 2 and then transported to the first rotating roller bed 20, such as... Figure 1As shown, the carriage 5 rotates 90° on the first rotating roller bed 20, then transfers to the second rotating roller bed 21, and rotates 90° in the same direction on the second rotating roller bed 21. That is, from the first rotating roller bed 20 to the second rotating roller bed 21, the carriage 5 completes a 180° rotation, which completes the turnaround.

[0069] Optionally, a transition roller bed for transferring the carriage 5 is provided between the first rotary roller bed 20 and the second rotary roller bed 21.

[0070] Meanwhile, a first motorized roller bed 17 is provided at the end of the first rotating roller bed 20 away from the second transferring roller bed 13 to separate the car body 5 with the skid conveyor:

[0071] If a standard box is detected, the rotating roller bed will transfer the standard box to the single-plate chain conveyor 3;

[0072] If a skid is detected, the skid is transferred off the production line via the first motorized roller bed 17.

[0073] Specifically, carriage 5 includes van-type cars and standard-sized cars, with the van-type cars equipped with skid transport. See also Figure 2 As shown, a third transfer roller bed 14 is arranged between the second transfer roller bed 13 and the first rotating roller bed 20, and a lifting platform 22 is attached to the side of the third transfer roller bed 14. After the carriage 5 is detected, the third transfer roller bed 14 connects to the carriage 5 from the second transfer roller bed 13. The lifting platform 22 drives the third transfer roller bed 14 to rise, so that the carriage 5 is transported to the first rotating roller bed 20, and then sent to the single-plate chain conveyor 3 via the second rotating roller bed 21 for the next assembly step. Optionally, the lifting platform 22 and the third transfer roller bed 14 cooperate to identify the carriage with skids, so that the skids are automatically separated from the carriage. The carriage without skids passes directly through the third transfer roller bed 14 and is transported to the first rotating roller bed 20.

[0074] See Figure 1 and Figure 2 As shown, a third trolley 9 is installed above the first motorized roller bed 17. When a skid is detected, the third trolley 9 transports the skid onto the first motorized roller bed 17. Optionally, the third trolley 9 covers the third transfer roller bed 14, the first rotating roller bed 20, and the first motorized roller bed 17, and is used to lift the skid off the production line. It can also be used to separate the skid in case of an abnormality in the lifting platform 22.

[0075] Furthermore, between the second rotary roller bed 21 and the single-plate chain conveyor 3, and in the direction from the second rotary roller bed 21 to the single-plate chain conveyor 3, a fourth transfer roller bed 15 and a second motorized roller bed 18 are sequentially arranged. The fourth transfer roller bed 15 is used to receive the carriage 5 from the second rotary roller bed 21 and transfer it to the second motorized roller bed 18. The second motorized roller bed 18 is connected to the single-plate chain conveyor 3. The single-plate chain conveyor 3 is sequentially arranged with a wire harness and light assembly station, a door lock seat, a part of the side and part of the lower half of the rear door frame reflective sticker assembly station, a door and door stop assembly station, and a station for the remaining reflective marks on the upper half of the carriage and for adjusting and tightening the lock rod.

[0076] Further, see Figure 2 As shown, a third transfer roller bed 14 is arranged between the second transfer roller bed 13 and the first rotating roller bed 20, and a lifting platform 22 is arranged next to the third transfer roller bed 14. The lifting platform 22 and the third transfer roller bed 14 can separate the skids from the car body 5 with skids. Specifically, after the third transfer roller bed 14 receives the car body 5 from the second transfer roller bed 13, the third transfer roller bed 14 identifies the skids. The lifting platform 22 and the third transfer roller bed 14 cooperate to automatically separate the skids from the car body. The standard car body without skids passes directly through the third transfer roller bed 14 and is transported to the first rotating roller bed 20.

[0077] In some alternative embodiments, see Figure 2 As shown, there are two roller conveyor lines 2 to stack more pre-assembled carriages 5. Specifically, the rotary roller bed includes a first rotary roller bed 20 and a second rotary roller bed 21, wherein the first rotary roller bed 20 is located at the conveying end of the roller conveyor line 2 and the second rotary roller bed 21 is located at the conveying start end of the single plate chain conveyor 3.

[0078] Furthermore, the first rotary roller bed 20 is located at the end of the roller conveyor line 2 near the side of the single-plate chain conveyor 3, which facilitates the docking of the first rotary roller bed 20 with the second rotary roller bed 21.

[0079] The two roller conveyor lines 2 are provided with a second transfer roller bed 13 at the end of the conveying process. The second transfer roller bed 13 can move along the conveying direction perpendicular to the two roller conveyor lines 2 to transfer the carriage 5 on the roller conveyor line 2 near the distribution roller conveyor line 1 to the end of the roller conveyor line 2 near the single plate chain conveyor 3, so as to transfer the carriage 5 onto the first rotating roller bed 20.

[0080] Specifically, see Figure 2As shown, a third trolley 9 is installed above the first motorized roller bed 17. When the third transfer roller bed 14 detects the skid, the lifting platform 22 cooperates to complete the skid separation. The skid is transported from the third transfer roller bed 14 to the first motorized roller bed 17, and the third trolley 9 lifts the skid off the first motorized roller bed 17. Optionally, the third trolley 9 covers the third transfer roller bed 14, the first rotating roller bed 20, and the first motorized roller bed 17, and is used to lift the skid off the line. It can also be used for skid separation in case of malfunction of the lifting platform 22.

[0081] S400: Transfer part of the carriages 5 on the single-plate chain conveyor 3 to outside the factory, and transfer another part of the carriages 5 to the main chain 4. Specifically, the carriages 5 transferred to outside the factory are pre-assembled carriages, mainly for customer self-pickup, and do not use the original chassis, so they will not enter the main chain 4 for chassis installation; the part of the carriages 5 transferred to the main chain 4 are assembled with the corresponding chassis.

[0082] Furthermore, combined Figure 1 and Figure 2 As shown, the single-plate chain conveyor 3 and the main chain 4 are equipped with a fourth overhead crane 10 and a fifth overhead crane 11.

[0083] The transfer of one portion of the carriages 5 on the single-plate chain conveyor 3 to the outside of the factory building, and the transfer of the other portion of the carriages 5 to the main chain 4, includes:

[0084] The fourth crane 10 is used to hoist part of the carriage 5 on the single-plate chain conveyor 3 to the outside of the factory building, and the fifth crane 11 is used to transfer another part of the carriage 5 to the main chain 4.

[0085] Along the conveying direction of the single-plate chain conveyor 3, a third motorized roller bed 19 and a fifth transferring roller bed 16 are sequentially arranged at the conveying end of the single-plate chain conveyor 3. After transferring the carriages on the roller conveyor line 2 to the single-plate chain conveyor 3 and completing the parts assembly, it also includes:

[0086] S401. Transfer the carriage 5 to the fifth transfer roller bed 16, use the hoisting device to lift the carriage 5, and carry out the angle iron assembly operation.

[0087] After the assembly of the carriage 5 is completed on the single-plate chain conveyor 3, the carriage 5 is transported to the third motorized roller bed 19. The fifth transfer roller bed 16 receives the carriage from the third motorized roller bed 19 and moves it to the bottom of the hoisting device. The hoisting device lifts the carriage 5, and the fifth transfer roller bed 16 moves out, where personnel perform angle iron assembly work at the bottom of the carriage. After the work is completed, the hoisting device transfers the carriage to the electric flatcar, and the electric flatcar transfers the carriage 5 with assembled angle irons to the side of the main chain 4 line, waiting for the chassis to be loaded.

[0088] Specifically, the fourth car 10 and the fifth car 11 can cover the single-plate chain conveyor 3 and the main board chain 4.

[0089] S500: The chassis is transported from the storage area 24 to the main board chain 4, and the carriage 5 transferred to the main board chain 4 is assembled onto the chassis.

[0090] Specifically, see Figure 1 and Figure 2 As shown, the chassis drives from storage area 24 into main chain 4. The main chain is sequentially equipped with a mounting frame license plate light, a taillight removal station, a rear guardrail installation station, a cargo box lowering and angle iron connection station, a mudguard installation station, and a side guardrail, taillight, and floor license plate light installation station. Along the transmission direction of main chain 4, synchronous chain plates are located on both sides of the cargo box lowering and angle iron connection stations. The fifth day's vehicle 11 hoists the cargo box 5 above main chain 4 to match the corresponding chassis. Operators are positioned on the synchronous chain plates on both sides, completing the connection between the cargo box 5 and the chassis as the main chain 4 moves. Alternatively, the fifth day's vehicle 11 can use an EMS line.

[0091] Furthermore, an AGV (Automated Guided Vehicle) line is set up next to the mainboard chain 4 to transport material carts containing the parts needed to connect the carriage 5 to the chassis to the mainboard chain 4. Personnel drag the material racks into the mainboard chain 4 and move them to the next workstation simultaneously with the chassis. After removing the parts at the workstations for installing the side guardrails, taillights, and license plate lights on the floor, the AGV cart takes away the empty material racks. After the license plate lights on the floor are installed, the carriage 5 and chassis are assembled, and personnel unload the entire vehicle off the line to the off-line area 25.

[0092] This application embodiment also provides a carriage assembly production line, characterized in that it includes a collection and distribution roller conveyor line 1 for assembling and conveying carriages 5, a roller conveyor line 2 for stacking pre-assembled carriages 5, a single-plate chain conveyor 3 for assembling parts of carriages 5, and a main plate chain 4 for assembling carriages 5 onto the chassis.

[0093] Furthermore, it also includes a first transfer roller bed 12, a second transfer roller bed 13, and a fifth overhead crane 11, wherein the first transfer roller bed 12 is used to transfer part of the carriage 5 from the collection and distribution roller conveyor line 1 to the roller conveyor line 2, the second transfer roller bed 13 is used to transfer part of the carriage 5 from the roller conveyor line 2 to the single plate chain conveyor 3, and the fifth overhead crane 11 is used to transfer part of the carriage 5 from the single plate chain conveyor 3 to the main chain 4.

[0094] Specifically, the carriage assembly production line is set up in the following order: distribution roller conveyor 1, roller conveyor 2, single-plate chain conveyor 3, and main chain 4, i.e. Figure 1 As shown, the conveying directions of the collection and distribution roller conveyor line 1, roller conveyor line 2, single plate chain conveyor 3 and main plate chain 4 are parallel to each other, which can effectively save the layout space of the production line.

[0095] Preferably, the conveying directions of adjacent conveyor lines are opposite, i.e., Figure 1As shown in the figure, the collection and distribution roller conveyor line 1 and the roller conveyor line 2 convey the carriage 5 towards the side where the first transfer roller bed 12 is located, and the roller conveyor line 2 conveys the carriage 5 towards the side where the third transfer roller bed 14 is located. The conveying end of the collection and distribution roller conveyor line 1 and the conveying start end of the roller conveyor line 2 are close to each other, which facilitates transfer and transmission.

[0096] This application provides two embodiments.

[0097] Example 1:

[0098] See Figure 1 As shown, Figure 1 The top view of the production line provided in this embodiment shows that the collection and distribution roller conveyor line 1, roller conveyor line 2, single plate chain conveyor 3 and main plate chain 4 are arranged in parallel, and these four lines are arranged in the order of collection and distribution roller conveyor line 1, roller conveyor line 2, single plate chain conveyor 3 and main plate chain 4. The conveying directions of adjacent production lines are opposite, and the space is made reasonable while the production lines are connected end to end.

[0099] Combination Figure 1 As shown, the carriage 5 enters the production line from the collection and distribution roller conveyor line 1. After assembly, it reaches the end of the collection and distribution roller conveyor line 1 along the conveying direction of the collection and distribution roller conveyor line 1. The carriage 5 on the collection and distribution roller conveyor line 1 is conveyed to the roller conveyor line 2 by the first transfer roller bed 12 located at the end of the collection and distribution roller conveyor line 1.

[0100] Preferably, the starting end of the roller conveyor line 2 is flush with the ending end of the collection and distribution roller conveyor line 1, and the first moving roller bed 12 moves the carriage 5 to the side onto the roller conveyor line 2.

[0101] Furthermore, some of the differentiated carriages not assembled on the main line are transferred off the line via the first car 7, while the other carriages 5 are transferred to the roller conveyor line 2 via the first transfer roller bed 12.

[0102] Meanwhile, the roller conveyor line 2 has multiple fixed roller beds 23. The collection roller conveyor line 1 and the roller conveyor line 2 are also equipped with a second car 8. The second car 8 adjusts the order of the carriages 5 on the fixed roller beds 23 according to the matching situation of the carriages 5, and adjusts the carriages 5 that are processed first to the fixed roller beds 23 that are closer to the next production line, so as to improve the processing efficiency.

[0103] The carriage 5 on roller conveyor line 2 is then transferred to single-plate chain conveyor 3 to complete parts assembly. Specifically, the assembly of lights and wiring harnesses, as well as door lock seats, door stop seats, and reflective stickers, needs to be completed on single-plate chain conveyor 3, and the locking rods are adjusted and the bolts are tightened. Specifically, a second transfer roller bed 13 is set at the end of the conveyor line 2. The carriage 5 is transferred to the second transfer roller bed 13, and the second transfer roller bed 13 transfers the carriage 5 to the single-plate chain conveyor 3 to complete parts assembly.

[0104] Furthermore, a rotating roller bed is provided at the conveying end of the roller conveyor line 2 and the conveying start section of the single-plate chain conveyor 3. Specifically, the rotating roller bed includes a first rotating roller bed 20 and a second rotating roller bed 21, wherein the first rotating roller bed 20 is provided at the conveying end of the roller conveyor line 2 and the second rotating roller bed 21 is provided at the conveying start section of the single-plate chain conveyor 3.

[0105] Furthermore, the second transferring roller bed 13 is connected from the roller conveyor line 2 to the carriage 5 and then conveyed to the first rotating roller bed 20, as shown below. Figure 1 As shown, the carriage 5 rotates 90° on the first rotating roller bed 20, then transfers to the second rotating roller bed 21, and rotates 90° in the same direction on the second rotating roller bed 21. That is, from the first rotating roller bed 20 to the second rotating roller bed 21, the carriage 5 completes a 180° rotation, which completes the turnaround.

[0106] Then, the carriages 5 on the single-plate chain conveyor 3 are transferred to the main board chain 4. Specifically, the carriages 5 transferred outside the factory are pre-assembled carriages, mainly for customers to pick up themselves. They do not use the original chassis, so they do not enter the main board chain 4 for chassis installation. The carriages 5 transferred to the main board chain 4 are assembled with the corresponding chassis.

[0107] After the car body 5 is assembled on the single-plate chain conveyor 3, a third motorized roller bed 19 and a fifth transfer roller bed 16 are set at the end of the conveying direction of the single-plate chain conveyor 3 to transfer the car body 5 to the bottom of the hoisting device. The hoisting device lifts the car body 5, the fifth transfer roller bed 16 moves out, and personnel perform angle iron assembly work at the bottom of the car body.

[0108] Furthermore, a fourth crane 10 and a fifth crane 11 are provided on the single-plate chain conveyor 3 and the main chain 4. The fourth crane 10 is used to hoist part of the carriage 5 on the single-plate chain conveyor 3 to the outside of the factory building, and the fifth crane 11 is used to transfer another part of the carriage 5 to the main chain 4.

[0109] After assembling carriage 5, carriage 5 is then assembled with the chassis on the main board chain 4. Specifically, in conjunction with... Figure 1 As shown, the storage area 24 is located at the starting end of the main board chain 4. The chassis drives out of the storage area 24 and is transported along the conveying direction of the main board chain 4. The carriage 5 transferred from the end of the single-plate chain conveyor 3 is assembled with the chassis. The whole vehicle is transported off the line to the off-line area 25.

[0110] Example 2:

[0111] The difference from Example 1 is that, see Figure 2As shown, there are two roller conveyor lines 2 to stack more pre-assembled carriages 5. Specifically, the rotary roller bed includes a first rotary roller bed 20 and a second rotary roller bed 21, wherein the first rotary roller bed 20 is located at the conveying end of the roller conveyor line 2 and the second rotary roller bed 21 is located at the conveying start end of the single plate chain conveyor 3.

[0112] Furthermore, the first rotary roller bed 20 is located at the end of the roller conveyor line 2 near the side of the single-plate chain conveyor 3, which facilitates the docking of the first rotary roller bed 20 with the second rotary roller bed 21.

[0113] The two roller conveyor lines 2 are provided with a second transfer roller bed 13 at the end of the conveying process. The second transfer roller bed 13 can move along the conveying direction perpendicular to the two roller conveyor lines 2 to transfer the carriage 5 on the roller conveyor line 2 near the distribution roller conveyor line 1 to the end of the roller conveyor line 2 near the single plate chain conveyor 3, so as to transfer the carriage 5 onto the first rotating roller bed 20.

[0114] Specifically, see Figure 2 As shown, a third trolley 9 is installed above the first motorized roller bed 17. When the third transfer roller bed 14 detects the skid, the lifting platform 22 cooperates to complete the skid separation. The skid is transported from the third transfer roller bed 14 to the first motorized roller bed 17, and the third trolley 9 lifts the skid off the first motorized roller bed 17. Optionally, the third trolley 9 covers the third transfer roller bed 14, the first rotating roller bed 20, and the first motorized roller bed 17, and is used to lift the skid off the line. It can also be used for skid separation in case of malfunction of the lifting platform 22.

[0115] The vehicle assembly method and production line provided in this application have a reasonable layout for assembling the vehicle body 5 and matching it with the chassis, simple equipment, high reliability, and low investment cost. The van and standard vehicle body can be assembled on the same line, allowing for both sequential production and adjustments to the chassis or vehicle body 5 order, offering high flexibility.

[0116] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0117] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0118] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A method for assembling and producing a carriage, characterized in that, It includes the following steps: The carriage (5) is placed on the distribution roller conveyor (1) and assembled, and the carriage (5) is transported along the distribution roller conveyor (1). The carriage (5) includes van-type carriages and standard carriages; Placing the carriage (5) on the distribution roller conveyor (1) and completing the assembly includes: Store the side panels, front panel and rear panel of the standard compartment on the stacking chain (6); The bottom plates of the van and the standard box are transported along the distribution roller conveyor (1), and the bottom plate, side plate, front plate and rear plate of the standard box are pre-assembled on the distribution roller conveyor (1). The first transfer roller bed (12) is provided at the conveying end of the collection and distribution roller conveyor (1). The collection and distribution roller conveyor (1) is arranged parallel to the roller conveyor line (2), and a first crane (7) is provided on the collection and distribution roller conveyor (1). The process of transferring some carriages (5) off the production line and transferring the remaining carriages (5) to the roller conveyor line (2) includes: Using the first day car (7), some cars (5) are transferred off the line. The cars (5) transferred off the line include differentiated cars that are not assembled on the main line. The remaining cars (5) are transferred to the roller conveyor line (2) using the first transfer roller bed (12). The cars (5) transferred to the roller conveyor line (2) include purchased cars or cars that do not need to be painted. The roller conveyor line (2) includes multiple fixed roller beds arranged along the conveying direction of the roller conveyor line (2), and a second trolley (8) is arranged on the collection and distribution roller conveyor line (1) and the roller conveyor line (2). The process of transferring the remaining carriages (5) to the roller conveyor line (2) also includes: The second car (8) is used to reorder the carriages (5) on the roller conveyor line (2) and the collection and distribution roller conveyor line (1) and place them on the fixed roller bed (23); The carriage (5) on the roller conveyor line (2) is transferred to the single-plate chain conveyor (3) to complete the parts assembly; The carriages (5) on the single-plate chain conveyor (3) are transferred to the outside of the factory. The carriages (5) transferred to the outside of the factory are assembled customer self-pickup carriages that do not use the original chassis. The other part of the carriages (5) are transferred to the main chain (4). The chassis is transported from the storage area (24) to the main board chain (4), and the carriage (5) transferred to the main board chain (4) is assembled onto the chassis; The conveying direction of the roller conveyor (2) is opposite to that of the single-plate chain conveyor (3), and the roller conveyor (2) is arranged in parallel with the single-plate chain conveyor (3). Rotary roller beds are provided at the conveying end of the roller conveyor (2) and the conveying start section of the single-plate chain conveyor (3).

2. The carriage assembly production method as described in claim 1, characterized in that: The conveying end of the roller conveyor line (2) is provided with a second transfer roller bed (13). The carriage (5) on the roller conveyor line (2) is transferred to the single-plate chain conveyor (3) to complete the parts assembly, including: The carriage (5) is transferred to the second transfer roller bed (13), and the second transfer roller bed (13) transfers the carriage (5) to the single plate chain conveyor (3) to complete the parts assembly.

3. The method for assembling and producing a carriage as described in claim 1, characterized in that, The carriage (5) includes a van and a standard carriage. Transferring the carriage (5) on the roller conveyor line (2) to the single-plate chain conveyor (3) includes: If a standard box is detected, the rotating roller bed will transfer the standard box to the single-plate chain conveyor (3); If a skid is detected, the skid is transferred off the production line via the first motorized roller bed (17).

4. The carriage assembly production method as described in claim 1, characterized in that, After transferring the carriages on the roller conveyor line (2) to the single-plate chain conveyor (3) and completing the parts assembly, it also includes: The carriage (5) is transferred to the fifth transfer roller bed (16), and the carriage (5) is lifted by the hoisting device for angle iron assembly.

5. The carriage assembly production method as described in claim 1, characterized in that... The single-plate chain conveyor (3) and the main chain (4) are equipped with a fourth crane (10) and a fifth crane (11). The transfer of some carriages (5) on the single-plate chain conveyor (3) to the outside of the factory, and the transfer of other carriages (5) to the main chain (4) includes: The fourth car (10) is used to hoist part of the carriage (5) on the single-plate chain conveyor (3) to the outside of the factory building, and the fifth car (11) is used to transfer another part of the carriage (5) to the main chain (4).

6. A carriage assembly production line, characterized in that, It includes: A collection and distribution roller conveyor (1) is used for assembling and conveying carriages (5). Roller conveyor line (2); The first transfer roller bed (12) is used to transfer part of the car (5) from the collection and distribution roller line (1) to the roller conveyor line (2); Single-plate chain conveyor (3), which is used for the assembly of parts in the carriage (5); The second transfer roller bed (13) is used to transfer part of the carriage (5) from the roller conveyor line (2) to the single-plate chain conveyor (3); Main board chain (4), which is used to assemble the carriage (5) onto the chassis; The fifth car (11) is used to transfer part of the car (5) from the single-plate chain conveyor (3) to the main chain (4); The carriage assembly production line is set up in the following order: distribution roller conveyor (1), roller conveyor (2), single plate chain conveyor (3), and main plate chain (4).

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