A carriage assembly hanging and conveying method, system and device based on MES system

Abstract

The present invention relates to a method, system and device for hanging and conveying a carriage assembly based on an MES system, which comprises the following steps: according to the production schedule of a chassis vehicle, associating packing information through an MES system; according to the packing information, completing the production schedule of the carriage assembly through the MES system; welding and painting the carriage assembly according to the production schedule of the carriage assembly; and conveying the carriage assembly to a carriage assembly workshop to complete the packing. By automatically associating and acquiring the packing information of the packed vehicle based on the MES system, and automatically compiling a production schedule for the carriage assembly based on the packing information, instructing the welding and painting of the carriage assembly, avoiding the large amount of inventory of the carriage assembly waiting for the painting and color matching after the welding is off the line, realizing the "one flow" of the welding-painting-packing production process of the carriage assembly, greatly reducing the intermediate inventory in the production process, not only reducing the inventory cost, but also avoiding secondary paint damage during assembly.

Description

Technical Field

[0001] The present invention relates to the field of carriage assembly manufacturing, and in particular to a carriage assembly hanging and conveying method, system and device based on a MES system. Background Art

[0002] At present, in the light truck industry, the production cycle interval between a type of chassis vehicle and a packaging vehicle is generally 2-3 days. Due to the multiple influences of the market and production system, the sequence and time of a type of chassis vehicle from order planning to assembly line, entering the chassis warehouse, leaving the chassis warehouse, and then being transferred to the packaging workshop may change, which may be inconsistent with the car body assembly (model, color) that is immediately off the line, which can easily lead to packaging line stoppage or waiting. The industry generally adopts the method of increasing inventory to solve this problem, resulting in higher inventory costs. Summary of the invention

[0003] The embodiments of the present invention provide a method, system and device for hanging and conveying a carriage assembly based on an MES system, so as to solve the problem in the related art that the packaging line may be easily stopped or waited, resulting in high inventory costs.

[0004] In a first aspect, a method for hanging and conveying a car body assembly based on an MES system is provided, which comprises the following steps: according to a chassis vehicle production plan, associating packing information through an MES system; according to the packing information, completing a car body assembly production plan through the MES system; welding and painting the car body assembly according to the car body assembly production plan; and conveying the car body assembly to a car body assembly workshop to complete packing.

[0005] In some embodiments, after the welding and painting of the car body assembly are performed according to the car body assembly production schedule, it also includes: determining whether the actual information of the car body assembly is consistent with the car body information corresponding to the packing information; if so, transporting the car body assembly to the car body assembly workshop to complete the packing; if not, transporting the car body assembly to the PBS warehouse for temporary storage, and selecting the corresponding car body assembly from the PBS warehouse and transporting it to the car body assembly workshop to complete the packing.

[0006] In some embodiments, completing the car body assembly production plan through the MES system based on the packing information includes: combining and automatically sorting orders according to the set car body paint color matching logic based on the packing information and through the software module of the MES system to complete the car body assembly production plan.

[0007] In some embodiments, the welding and painting of the car body assembly according to the car body assembly production plan includes welding the car body assembly according to the car body assembly production plan; transporting the car body assembly to a painting shop using a hanging conveying device; and painting the car body assembly in a hanging order.

[0008] On the second aspect, a car body assembly hanging and conveying system based on the MES system is provided, which includes: an information module, which is used to associate the packing information through the MES system according to the chassis vehicle production plan; a production scheduling module, which is used to complete the car body assembly production plan through the MES system according to the packing information; an execution module, which is used to control the welding and painting of the car body assembly according to the car body assembly production plan; and a packing module, which is used to control the movement of the car body assembly to the car body assembly workshop to complete the packing.

[0009] In some embodiments, the car assembly hanging and conveying system also includes a judgment module, which is used to determine whether the actual information of the car assembly is consistent with the car information corresponding to the packing information; if so, the car assembly is conveyed to the car assembly workshop to complete the packing; if not, the car assembly is conveyed to the PBS library for temporary storage, and the corresponding car assembly is selected from the PBS library and conveyed to the car assembly workshop to complete the packing.

[0010] In some embodiments, the carriage assembly hanging and conveying system also includes a software module, which is used to combine and automatically sort orders according to the packing information and the set carriage paint color logic to complete the production schedule of the carriage assembly.

[0011] In the second aspect, a car assembly hanging and conveying device for the car assembly hanging and conveying method based on the MES system is provided, which includes: a base frame; a fixed frame, which is installed on the base frame, and a fixing mechanism is installed on the fixed frame, and the fixed frame has at least two layers, and the two layers of the fixed frame are used to support the car assembly and are fixed to the bottom of the car assembly through the fixing mechanism.

[0012] In some embodiments, the fixing mechanism includes: a base, which is fixed to the fixing frame, and the base has an ear plate; a fixing pin, which passes through the ear plate, and the fixing pin can move along its axial direction and enter and exit the bottom plate of the carriage assembly; and a limit seat, which is fixed to the fixing frame, and the fixing pin can rotate around its axis and be installed in the limit seat.

[0013] In some embodiments, the fixing mechanism further includes a U-shaped fixing groove, which is fixed on the fixing frame, and the fixing groove is used to block the opposite sides of the bottom plate of the vehicle body assembly.

[0014] The beneficial effects brought about by the technical solution provided by the present invention include:

[0015] The embodiments of the present invention provide a method, system and device for hanging and conveying a car body assembly based on an MES system. Based on the MES system, the packing information of the packing vehicle is automatically associated and obtained, and a production plan for the car body assembly is automatically prepared according to the packing information, and the welding and painting of the car body assembly are instructed, so as to avoid large amounts of inventory of the car body assembly waiting for painting and matching colors after the welding is off the line, thereby realizing the "one flow" of the car body assembly welding-painting-packing production process, greatly reducing the intermediate inventory in the production process, which not only reduces the inventory cost, but also avoids secondary paint damage during assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A flow chart of a carriage assembly hanging and conveying method based on an MES system provided in an embodiment of the present invention;

[0018] Figure 2 A schematic diagram of a carriage assembly hanging and conveying system based on an MES system provided in an embodiment of the present invention;

[0019] Figure 3 A schematic diagram of the three-dimensional structure of a carriage assembly hanging and conveying device based on an MES system provided in an embodiment of the present invention;

[0020] Figure 4 A schematic diagram of the three-dimensional structure of the carriage assembly hanging conveying device based on the MES system provided in an embodiment of the present invention from another angle;

[0021] Figure 5 A schematic diagram of the partial structure of a carriage assembly hanging and conveying device based on the MES system provided in an embodiment of the present invention.

[0022] Numbers in the figure:

[0023] 1. Base frame; 2. Fixed frame; 3. Fixed mechanism; 31. Base; 32. Ear plate; 33. Fixed pin; 34. Limit seat; 35. Fixed slot; 4. Carriage assembly; 41. Bottom plate. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] The embodiments of the present invention provide a method, system and device for hanging and conveying a carriage assembly based on an MES system, which can solve the problem in the related technology that packaging may be easily stopped or waited, resulting in high inventory costs.

[0026] See also Figure 1 As shown, a method for hanging and conveying a carriage assembly based on an MES system is provided in an embodiment of the present invention, which may include the following steps:

[0027] Step S01: According to the chassis production plan, the packing information is associated through the MES (Manufacturing Execution System) system; specifically, the order management department publishes the chassis production plan through the SCF (Supply Chain Finance) system, and automatically associates the packing information through the MES system, including vehicle model, color, packing forecast time, etc.

[0028] Step S02: according to the packing information, the car assembly production plan is completed through the MES system; specifically, after the car production department receives the packing information automatically associated with the MES system, the car assembly production plan is automatically completed through the dedicated software module of the MES system according to the set car "paint matching" logic.

[0029] Step S03, welding and painting the car assembly according to the car assembly production schedule; specifically, the welding workshop welds the car assembly according to the car assembly production schedule indicated by the MES system, and after completion, the car assembly is transported to the painting workshop using a special hanging device; the painting workshop paints the car assembly according to the welding hanging sequence, including pre-treatment, topcoat and other processes.

[0030] Step S04: transport the carriage assembly to the carriage assembly workshop for packing.

[0031] In this embodiment, based on the MES system, the packing information of the packed vehicle is automatically associated and obtained, and the production schedule of the car body assembly is automatically compiled according to the packing information, and the welding and painting of the car body assembly are instructed, so that a type of chassis vehicle can be arranged from order planning to assembly and off-line, entering the chassis warehouse, and leaving the chassis warehouse. When it is transferred to the packing workshop, it can be kept as consistent as possible with the car body assembly (model, color) that is immediately off the line. There is no need to stop the line or wait for packing, which avoids large amounts of inventory when the car body assembly is welded and off the line waiting for painting and matching colors, realizing the "one flow" of the car body assembly welding-painting-packing production process, greatly reducing the intermediate inventory in the production process, which not only reduces the inventory cost but also avoids secondary paint damage during assembly.

[0032] Further, after the welding and painting of the car body assembly is performed according to the car body assembly production schedule, it may also include: judging whether the actual information of the car body assembly is consistent with the car body information corresponding to the packing information; if so, conveying the car body assembly to the car body assembly workshop for packing; if not, conveying the car body assembly to the PBS warehouse (buffer and storage area between the painting plant and the assembly plant in the automobile manufacturing enterprise) for temporary storage, and selecting the corresponding car body assembly from the PBS warehouse for conveying to the car body assembly workshop for packing. In this embodiment, after the welding and painting of the car body assembly is performed according to the car body assembly production schedule, it is judged whether the actual information of the car body assembly is consistent with the car body information corresponding to the packing information, and if they are consistent, they are conveyed to the car body assembly workshop for packing, which can further improve the accuracy of matching the car body assembly with the packed vehicle. If they are inconsistent, they are conveyed to the PBS warehouse for temporary storage, and the corresponding car body assembly is selected from the warehouse and conveyed to the car body assembly workshop for packing, which can reduce inventory and reduce inventory costs.

[0033] In some embodiments, after painting is completed, manual verification is performed: if the latest packing information indicated by the MES system is consistent with the painted car body off the line, it is directly transported to the car body assembly workshop to complete packing; if the latest packing information indicated by the MES system is inconsistent with the painted car body off the line (due to market or production reasons), it is transported to the PBS warehouse for temporary storage, and the appropriate painted car body assembly is selected from the PBS warehouse (according to the first-in-first-out principle) and transported to the car body assembly workshop to complete packing.

[0034] In another embodiment, after painting is completed, the machine is calibrated: if the latest packing information indicated by the MES system is consistent with the painted carriage off the line, it is directly transported to the carriage assembly workshop to complete packing; if the latest packing information indicated by the MES system is inconsistent with the painted carriage off the line (due to market or production reasons), it is transported to the PBS warehouse for temporary storage, and the appropriate painted carriage assembly is selected from the PBS warehouse (according to the first-in-first-out principle) and transported to the carriage assembly workshop to complete packing.

[0035] In some embodiments, completing the car assembly production plan through the MES system according to the packing information may include: combining and automatically sorting orders according to the packing information and the set car paint color matching logic through the software module of the MES system to complete the car assembly production plan. In this embodiment, after the car production department receives the packing information automatically associated with the MES system, it automatically completes the car assembly production plan through the dedicated software module of the MES system according to the set car "paint color matching" logic (Table 1). Based on the MES system, the "car model, color" and other information of the packed vehicle are automatically associated and obtained, and the car production plan is automatically compiled according to the set car "paint color matching" logic, indicating that the welding of the car assembly is completed and directly transported to the painting workshop, so as to avoid large amounts of inventory due to the car assembly welding and waiting for "paint color matching" off the line.

[0036] This embodiment realizes the "one flow" of the car body assembly "welding - painting (including pre-treatment, topcoat) - packaging" production process, and only retains a small inventory of painted car body assemblies in the "final assembly" process, achieving the on-time production goal of packaging, and significantly reducing the intermediate inventory in the production process, which not only reduces inventory costs but also avoids secondary paint damage during assembly. According to preliminary estimates, this solution is used for the construction of a car body factory with an annual output of 75,000 units, reducing the investment in the construction of WBS and PBS buffer libraries by more than 10 million yuan, and reducing the inventory of a class of chassis vehicles and car body welding, pre-treatment, and topcoat processes by more than 5 million yuan.

[0037] Table 1

[0038]

[0039]

[0040] In some embodiments, the welding and painting of the car body assembly according to the car body assembly production schedule may include: welding the car body assembly according to the car body assembly production schedule; transporting the car body assembly to a painting shop using a hanging conveying device; painting the car body assembly in a hanging order. In this embodiment, the welding shop welds the car body assembly according to the car body production schedule indicated by the MES system, and after completion, uses a special hanging device to transport the car body assembly to the painting shop, which can further improve the accuracy of matching the car body assembly with the box vehicle.

[0041] See also Figure 2As shown, a carriage assembly hanging and conveying system based on the MES system is provided in an embodiment of the present invention, which may include: an information module, which is used to associate the packing information through the MES system according to the chassis vehicle production schedule; a production scheduling module, which is used to complete the carriage assembly production schedule through the MES system according to the packing information; an execution module, which is used to control the welding and painting of the carriage assembly according to the carriage assembly production schedule; a packing module, which is used to control the carriage assembly to move to the carriage assembly workshop to complete the packing. In this embodiment, the information module is used to automatically associate and obtain the packing information of the packing vehicle based on the MES system. And according to the packing information, the production scheduling module automatically compiles the car body assembly production schedule, and then uses the execution module to instruct the welding and painting of the car body assembly, so that a type of chassis vehicle can be arranged from the order plan to the assembly line, enter the chassis warehouse, and leave the chassis warehouse. When the packing module transfers it to the packing workshop, it is as consistent as possible with the car body assembly (model, color) that is immediately off the line. There is no need to stop the line or wait for packing, which avoids large amounts of inventory when the car body assembly is welded and waits for painting and color matching. This realizes the "one flow" of the car body assembly welding-painting-packing production process, greatly reducing the intermediate inventory in the production process, which not only reduces inventory costs, but also avoids secondary paint damage during assembly.

[0042] In some embodiments, the car assembly hanging and conveying system may further include a judgment module, which can be used to determine whether the actual information of the car assembly is consistent with the car information corresponding to the packing information; if so, the car assembly is conveyed to the car assembly workshop to complete packing; if not, the car assembly is conveyed to the PBS warehouse for temporary storage, and the corresponding car assembly is selected from the PBS warehouse and conveyed to the car assembly workshop to complete packing. In this embodiment, after the car assembly is welded and painted according to the car assembly production plan, the judgment module is used to determine whether the actual information of the car assembly is consistent with the car information corresponding to the packing information. If they are consistent, they are conveyed to the car assembly workshop to complete packing, which can further improve the accuracy of matching the car assembly with the packed vehicle. If they are inconsistent, they are conveyed to the PBS warehouse for temporary storage, and the corresponding car assembly is selected from the warehouse and conveyed to the car assembly workshop to complete packing, which can reduce inventory and reduce inventory costs.

[0043] In some embodiments, the car assembly hanging and conveying system may further include a software module, which can be used to combine and automatically sort orders according to the packing information and the set car paint color logic to complete the car assembly production schedule. In this embodiment, by adding a software module to the MES system, orders can be combined and automatically sorted according to the "color merging" logic set by the production planner; the production planner sets the "color merging" logic according to the optimal operating cost principle of the painting process, and can adjust it according to market changes and production operation needs; the MES system automatically sorts the production plan (welding type, quantity, color) of the car assembly order information for the day according to the manually set "color merging" logic, and instructs the welding workshop to produce the car assembly.

[0044] In the related art, the method of hanging the carriage assembly for painting usually adopts the method of hanging the carriage in loose parts. Hanging the carriage in loose parts has few requirements on the size of the electrothermal pool and is economical and affordable. However, hanging the loose parts is a heavy physical operation, the efficiency of assembly is low, and manpower is wasted.

[0045] Therefore, see Figure 3 and Figure 4 As shown, an embodiment of the present invention provides a carriage assembly hanging and conveying device for the carriage assembly hanging and conveying method based on the MES system, which solves the problems of complex hanging operation, low efficiency and high inventory when painting carriage parts by providing a special hanging scheme for the carriage assembly, and may include: a base frame 1; a fixed frame 2, which is installed on the base frame 1, and a fixing mechanism 3 is installed on the fixed frame 2, and the fixed frame 2 has at least two layers, and the two layers of the fixed frame 2 are used to support the carriage assembly 4 and are fixed to the bottom of the carriage assembly 4 through the fixing mechanism 3. In this embodiment, the base frame 1 is horizontally arranged, and the fixed frame 2 is perpendicular to the base frame 1 is fixed, and the fixing frame 2 has two layers arranged in parallel and at intervals. Each layer of the fixing frame 2 can support a car assembly 4, which is fixed to the bottom of the car assembly 4 by the fixing mechanism 3 on the fixing frame 2. It has good stability and can ensure the stability of the posture of the car assembly 4 during electrophoresis, avoiding collision of loose parts, with less obstruction, and convenient for painting. The "one flow" and fixed sequence of the car "welding-painting" production process are realized. Before arriving at the final assembly, most of them are directly transported to the final assembly workshop for unpacking after judgment, and only a small amount of painted car assemblies are cached in the PBS library and circulated according to the first-in-first-out principle, which meets the on-time production of the packing process under the minimum inventory and reduces the inventory cost.

[0046] See also Figure 5As shown, in some embodiments, the fixing mechanism 3 may include: a base 31, which is fixed to the fixing frame 2, and the base 31 has an ear plate 32; a fixing pin 33, which is inserted into the ear plate 32, and the fixing pin 33 can move along its axial direction and enter and exit the bottom plate 41 of the car assembly 4; and a limiting seat 34, which is fixed to the fixing frame 2, and the fixing pin 33 can rotate around its axis and be loaded into the limiting seat 34. In this embodiment, a triangular horizontally arranged support frame is fixed on the fixing frame 2, and the fixing frame 2 is installed on the support frame. A hole is provided on the bottom plate 41 of the car assembly 4, and the fixing pin 33 can move into the hole to fix the car assembly 4. The fixing frame 2 is plate-shaped and has a limiting groove. After the fixing pin 33 enters the hole of the bottom plate 41, it can rotate around the axial direction and enter the limiting groove of the fixing frame 2 to prevent the fixing pin 33 from falling out, thereby further ensuring the stability of the car assembly 4.

[0047] See also Figure 5 As shown, in some embodiments, the fixing mechanism 3 may further include a U-shaped fixing groove 35, wherein the fixing groove 35 is fixed on the fixing frame 2, and the fixing groove 35 is used to block the opposite sides of the bottom plate 41 of the car body assembly 4. In this embodiment, the fixing groove 35 is U-shaped, and the bottom plate 41 is placed in the fixing groove 35. The side walls of the fixing groove 35 can block the opposite sides of the bottom plate 41, thereby further improving the stability of the car body assembly 4.

[0048] When in use, the carriage assembly 4 is placed on the fixing frame 2, the bottom plate 41 is inserted into the fixing groove 35, the fixing pin 33 is pushed into the hole on the bottom plate 41, the carriage assembly 4 is fixed, and then the fixing pin 33 is rotated so that one end of the fixing pin 33 enters the limit seat 34, thereby limiting the movement of the fixing pin 33, and finally the fixed carriage assembly 4 is transported to the electrophoresis tank for electrophoresis. By fixing the carriage assembly 4 from the bottom, the posture of the carriage assembly 4 can be ensured to be stable, the collision of the parts can be avoided, the shielding surface is small, and it is convenient for painting.

[0049] The principles of a carriage assembly hanging and conveying method, system and device based on an MES system provided in an embodiment of the present invention are as follows:

[0050] This solution is based on the MES system, which automatically associates and obtains the "carriage model, color" and other information of the boxed vehicle, and automatically compiles the car production plan according to the set car "painting and color matching" logic, indicating that the car assembly welding is completed and directly transported to the painting workshop, avoiding the car assembly welding and waiting for "painting and color matching" and large inventory; this solution solves the problems of complex hanging operations, low efficiency and high inventory when painting car parts by providing a special hanging solution for the car assembly; this solution realizes the "welding-painting ( The solution is to use a "one-flow" production process from "pre-treatment, topcoat) to "packing", and only keep a small inventory of painted carriage assemblies in the "final assembly" process, so as to achieve the on-time production goal of packing, and significantly reduce the intermediate inventory in the production process, which not only reduces the inventory cost, but also avoids secondary paint damage during assembly. According to preliminary estimates, this solution is used for the construction of a car body factory with an annual output of 75,000 cars, reducing the investment in the construction of WBS and PBS buffer libraries by more than 10 million yuan, and reducing the inventory of a class of chassis vehicles and car body welding, pre-treatment, and topcoat processes by more than 5 million yuan.

[0051] In the description of the present invention, it should be noted that the terms "upper", "lower", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0052] It should be noted that, in the present invention, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0053] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be 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 the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A method for hanging and conveying a carriage assembly based on an MES system, characterized in that: The carriage assembly hanging and conveying method comprises the following steps: According to the chassis production plan, the packaging information is associated through the MES system; According to the packing information, the car assembly production plan is completed through the MES system; Carrying out welding and painting of the carriage assembly according to the carriage assembly production schedule; Transporting the carriage assembly to the carriage assembly workshop for packing; After the welding and painting of the carriage assembly are performed according to the carriage assembly production schedule, the method further includes: Determine whether the actual information of the carriage assembly is consistent with the carriage information corresponding to the packing information; If yes, the carriage assembly is transported to the carriage assembly workshop for packing; If not, the carriage assembly is transported to the PBS warehouse for temporary storage, and the corresponding carriage assembly is selected from the PBS warehouse and transported to the carriage assembly workshop for packing; The method of completing the car assembly production plan through the MES system according to the packing information includes: According to the packing information and through the software module of the MES system, the order combination and automatic sorting are performed according to the set carriage painting color matching logic to complete the carriage assembly production plan; The welding and painting of the carriage assembly according to the carriage assembly production schedule includes: Welding and assembling the carriage assembly according to the carriage assembly production schedule; Using a hanging conveying device to convey the carriage assembly to a paint shop; The carriage assembly is painted in the order of hanging.

2. A carriage assembly hanging and conveying system based on an MES system, using the carriage assembly hanging and conveying method based on an MES system as claimed in claim 1, characterized in that: It includes: Information module, which is used to associate the packing information through the MES system according to the chassis production plan; A production scheduling module, which is used to complete the car assembly production scheduling plan through the MES system according to the packing information; An execution module, which is used to control the welding and painting of the carriage assembly according to the carriage assembly production schedule; A packing module, which is used to control the carriage assembly to move to the carriage assembly workshop to complete packing; The carriage assembly hanging and conveying system further includes a judgment module, which is used to judge whether the actual information of the carriage assembly is consistent with the carriage information corresponding to the packing information; If yes, the carriage assembly is transported to the carriage assembly workshop for packing; If not, the carriage assembly is transported to the PBS warehouse for temporary storage, and the corresponding carriage assembly is selected from the PBS warehouse and transported to the carriage assembly workshop for packing; The carriage assembly hanging and conveying system also includes a software module, which is used to combine and automatically sort orders according to the packing information and the set carriage painting color matching logic to complete the carriage assembly production plan.

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