Vehicle part welding production system and vehicle production method

Abstract

The invention provides a vehicle part welding production system and a vehicle production method, and relates to the technical field of vehicle part production, the production system comprises a plurality of welding groups configured according to preset machining numbers, a plurality of welding devices in one-to-one correspondence with the welding groups, a first transfer device and a second transfer device; the welding set comprises a first welding table and a second welding table. Each welding device is used for alternately welding the vehicle parts on the first welding table and the second welding table; the first transfer equipment sequentially carries the welded vehicle parts to the first welding table of the next welding set according to the positive sequence of the machining numbers and carries the welded vehicle parts to the second welding table of the next welding set according to the reverse sequence of the machining numbers; and the second transfer equipment carries the vehicle parts on the first welding table of the first welding set to the second welding table of the same set according to the reverse order of the machining numbers. Through the embodiment provided by the invention, the welding time is shortened, and the utilization rate and the production efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of vehicle parts manufacturing technology, and in particular to a vehicle parts welding production system and a vehicle manufacturing method. Background Technology

[0002] Welding of vehicle parts is a critical step in automobile manufacturing. Traditional welding production lines often adopt a linear layout, with welding workstations arranged sequentially along conveyor belts or tracks. The workstations are generally connected in series using reciprocating rods, robots, or AGVs to transport parts. The welding robots within each workstation work relatively independently.

[0003] Linear layouts typically require long production lines, occupying significant factory space. To increase capacity, parallel production lines are often added, further exacerbating land and construction costs. When welding equipment is welding a component, the workstation must wait for the current operation to complete before loading / unloading and the next welding operation can begin. This means that welding equipment experiences significant idle waiting time, preventing continuous operation and making overall production efficiency a bottleneck with low equipment utilization. Some production systems have attempted to adopt more flexible robotic workstations or circular layouts, but these solutions often involve huge initial investments, complex control programs, and a failure in any part can easily cause the entire production line to shut down, resulting in high maintenance costs and operational risks. Summary of the Invention

[0004] This application addresses the shortcomings of existing methods by providing a vehicle parts welding production system and vehicle production method to solve the technical problems of long waiting time for welding, low utilization rate of welding robots, low turnover efficiency, and low welding production efficiency in the prior art.

[0005] In one aspect, embodiments of this application provide a vehicle component welding production system, comprising multiple welding groups configured according to preset processing numbers, multiple welding devices corresponding one-to-one with the multiple welding groups, a first transfer device and a second transfer device; the multiple welding groups are arranged sequentially along a first direction according to preset processing numbers; each welding group includes a first welding table and a second welding table; in the first direction, multiple first welding tables are sequentially adjacent to each other, and multiple second welding tables are also sequentially adjacent to each other; the first welding table of the first welding group in the ascending sequence of processing numbers serves as the loading point for material; each welding device is used to alternately weld vehicle components on the first welding table and the second welding table corresponding to the welding group; welding is performed on the welding device according to the ascending sequence of processing numbers. When a vehicle component is welded on the second welding table of the previous welding group, the first transfer device moves the vehicle component welded on the first welding table of the previous welding group to the first welding table of the next welding group. Following the reverse order of the processing numbers, when a vehicle component is welded on the first welding table of the previous welding group, the first transfer device moves the vehicle component welded on the second welding table of the previous welding group to the second welding table of the next welding group. Following the reverse order of the processing numbers, when the first transfer device moves the vehicle component welded on the second welding table of the first welding group to the second welding table of the next welding group, the second transfer device moves the vehicle component welded on the first welding table of the first welding group to the second welding table of the same welding group.

[0006] As an optional implementation, the vehicle component welding production system further includes a handling device and at least one finished product frame; the handling device is located on the side of the last welding group in the reverse order of the processing number, near the off-line position, for transferring the vehicle components welded at the off-line point to a preset transport position; wherein, the second welding table of the last welding group in the reverse order of the processing number serves as the off-line point for material off-line; at least one finished product frame is located on the side of the handling device opposite to the last welding group in the reverse order of the processing number, serving as the transport position for storing the vehicle components lifted by the handling device from the second welding table of the last welding group in the reverse order of the processing number.

[0007] As an optional implementation, all the welding groups are arranged sequentially and linearly along a first direction according to the processing number; the first welding table and the second welding table of the same welding group are arranged along a second direction; the first welding tables of all the welding groups are arranged sequentially along the first direction; the second welding tables of all the welding groups are arranged sequentially along the first direction; the first welding table and the second welding table of the same welding group are spaced apart; and the welding equipment is disposed between the first welding table and the second welding table of the same welding group.

[0008] As an optional implementation, the welding equipment includes a first support base, a detachably connected welding arm and welding torch, and a first drive device and a first rotating shaft connected in sequence. The first drive device and the first rotating shaft are both mounted on the first support base. The output end of the first drive device is connected to the first rotating shaft to drive the first rotating shaft to rotate around its own axis. The first end of the welding arm is connected to the welding torch, and the second end of the welding arm is rotatably connected to the first rotating shaft. Under the drive of the first rotating shaft, they rotate synchronously to move towards the first welding table or the second welding table of the same welding group, and alternately weld vehicle parts on the first welding table and the second welding table.

[0009] As an optional implementation, the first transfer device is disposed between two adjacent welding groups; the second transfer device is disposed on the side opposite to the previous welding group in the ascending sequence of the processing numbers.

[0010] As an optional implementation, the first transfer device and / or the second transfer device includes a second support base, a transfer arm, a gripper, and a second drive motor and a second rotating shaft connected in sequence; the second drive motor and the second rotating shaft are both mounted on the second support base, and the output end of the second drive motor is connected to the second rotating shaft to realize the rotation of the second rotating shaft around its own axis; the transfer arm is connected to the end of the second rotating shaft away from the output end of the second drive motor, and the transfer arm rotates synchronously under the drive of the second rotating shaft; the gripper is mounted on the end of the transfer arm away from the second rotating shaft for gripping or releasing vehicle parts.

[0011] As an optional implementation, the first welding group in the processing number sequence further includes a first assembly slide, which is connected to the first welding table of the first welding group in the processing number sequence via a slide rail. The first assembly slide is used to assemble vehicle parts.

[0012] Secondly, this application provides a vehicle production method applied to the vehicle component welding production system described in any of the foregoing embodiments. The method includes: a first material transfer stage: according to a preset first material transfer plan, controlling a first transfer device to sequentially transport vehicle components that have been welded on a first welding table, and supplementing vehicle components to be processed through the material loading point; the first welding table of the first welding group in the processing number sequence is used as the material loading point; a first material welding stage: controlling all welding devices to simultaneously weld vehicle components on the second welding table of the corresponding welding group; a second material welding stage: controlling all welding devices to simultaneously weld vehicle components on the first welding table of the corresponding welding group; a second material transfer stage: according to a preset second material transfer plan, controlling a transport device to transport the welded vehicle components to the first welding table of the corresponding welding group. Vehicle parts are transferred from the material unloading point to a preset transport location; the first transfer equipment is controlled to sequentially transport the vehicle parts that have been welded on the second welding table; the second welding table of the last welding group in the reverse order of the processing number is the material unloading point; in the third material transfer stage: the second transfer equipment is controlled to transport the vehicle parts on the first welding table of the target welding group to the second welding table of the same welding group; the target welding group is the first welding group in the reverse order of the processing number; the following steps are repeated: the first material transfer stage overlaps with the first material welding stage; after both the first material transfer stage and the first material welding stage are completed, the second material welding stage overlaps with the second material transfer stage; after both the first material transfer stage and the first material welding stage are completed, the third material transfer stage is performed; until the production end instruction is received.

[0013] As an optional implementation, the first welding group in the processing number sequence further includes a first assembly slide, which is connected to the first welding table of the first welding group in the processing number sequence via a slide rail. The first assembly slide is used to assemble vehicle parts. According to a preset first material transfer scheme, the first transfer device is controlled to sequentially transport the vehicle parts that have been welded on the first welding table, including: according to the processing number sequence, when the welding equipment is welding the vehicle parts on the second welding table of the previous welding group, the first transfer device is controlled to transport the vehicle parts that have been welded on the first welding table of the previous welding group to the first welding table of the next welding group. The vehicle parts to be processed are replenished through the material loading point, including: after the vehicle parts that have been welded on the first welding table of the first welding group in the processing number sequence are removed, the vehicle parts that have been assembled from the first assembly slide are transported to the first welding table.

[0014] As an optional implementation, controlling the first transfer device to sequentially transport vehicle parts that have been welded on the second welding table; controlling the second transfer device to transport vehicle parts on the first welding table of the target welding group to the second welding table of the same welding group includes: according to the reverse order of the processing numbers, when the welding equipment is welding vehicle parts on the first welding table of the previous welding group, controlling the first transfer device to transport vehicle parts that have been welded on the second welding table of the previous welding group to the second welding table of the next welding group; according to the reverse order of the processing numbers, when the first transfer device transports vehicle parts that have been welded on the second welding table of the first welding group to the second welding table of the next welding group, controlling the second transfer device to transport vehicle parts on the first welding table of the first welding group to the second welding table of the same welding group.

[0015] As an optional implementation, the vehicle production method further includes: obtaining the current production workload; determining the current operating equipment plan based on the preset correspondence between the production workload and the operating equipment plan, and the obtained current production workload; the current operating equipment plan includes the number of welding groups to be operated among multiple welding groups configured according to preset processing numbers, the welding equipment corresponding to the welding groups to be operated, the first transfer equipment corresponding to the welding groups to be operated, and the number of second transfer equipment to be operated, wherein the number of second transfer equipment to be operated is less than or equal to 1; if the number of second transfer equipment to be operated is 0, then the last welding group in the operating welding groups, in ascending order of processing number, will be selected. The first transfer device is configured to replace the function of the second transfer device. When the vehicle parts welded on the second welding table of the last welding group are moved to the second welding table of the previous welding group, the vehicle parts on the first welding table of the last welding group are moved to the second welding table of the same welding group. According to the current operating equipment plan, the following steps are repeated: the first material transfer stage overlaps with the first material welding stage; after both the first material transfer stage and the first material welding stage are completed, the second material welding stage overlaps with the second material transfer stage; after both the first material transfer stage and the first material welding stage are completed, the third material transfer stage is performed; until a production end instruction is received.

[0016] This application provides a welding production system for vehicle parts and a vehicle production method. The technical solutions provided by the embodiments of this application bring at least the following beneficial effects: The vehicle component welding production system provided in this application includes a forward welding stage, a transfer stage, and a reverse welding stage. In the forward welding stage, vehicle components are welded starting from the first welding station of the first welding group. After being welded, they are moved "forward" by the first transfer device to the second welding group, where they are welded again. This forward movement and sequential welding process is repeated until the components reach the last welding group, completing the final welding of this stage. In the transfer stage, the second transfer device acts as a "bridge," moving the vehicle components "laterally" from the first welding station of the last welding group in the forward welding stage to the second welding station in the same group. The last welding group in the forward welding stage becomes the first welding group in the reverse welding stage, thus switching the material flow from a "forward sequence" to a "reverse sequence." In the reverse welding stage, after being welded at the second welding station of the first welding group, the vehicle components are moved "reverse" by the first transfer device to the second welding station of the second welding group, where they are welded again. This forward movement and sequential welding process is repeated until the components reach the last welding group, completing the final welding of this stage. This forms a complete, non-intersecting, and non-detour "U"-shaped production path. By employing a "U"-shaped movement and welding path that allows for "forward input and reverse output," each welding device can alternately weld materials (vehicle parts) on the first and second welding stations. While one welding station is welding, the other can be loading / unloading or waiting for transfer, eliminating waiting time and achieving near-continuous production. This significantly improves the utilization rate of welding equipment and the overall production cycle time.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 A schematic diagram of the layout of a vehicle parts welding production system provided in this application embodiment; Figure 2 This application provides a schematic diagram of the structure of welding equipment in a vehicle parts welding production system. Figure 3 This is a schematic diagram of the structure of a first transfer device in a vehicle parts welding production system provided in an embodiment of this application.

[0019] Figure labels and corresponding explanations: 1: Welding group; 11: First welding table; 12: Second welding table; 13: First assembly slide; 2: Welding equipment; 21: First support base; 22: First drive motor; 23: First rotating shaft; 24: Welding arm; 25: Welding torch; 3: First transfer equipment; 4: Second transfer equipment; 5: Handling equipment; 6: Finished product frame; 100: Second support seat; 200: Second drive motor; 300: Second rotation axis; 400: Transfer arm; 500: Handle. Detailed Implementation

[0020] This application is described in detail below. Examples of embodiments of this application are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. Furthermore, detailed descriptions of known technologies that are unnecessary for the features of this application are omitted. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0021] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in the specification of this application means the presence of the stated features, elements, and / or components, but does not exclude the presence or addition of one or more other features, elements, components, and / or groups thereof. The term “and / or” as used includes all or any units and all combinations thereof of one or more associated listed items.

[0022] like Figure 1-3As shown, this application provides a vehicle parts welding production system, which includes multiple welding groups 1 configured according to preset processing numbers, multiple welding equipment 2 corresponding one-to-one with the multiple welding groups 1, a first transfer device 3 and a second transfer device 4; the multiple welding groups 1 are arranged sequentially along a first direction according to preset processing numbers; each welding group 1 includes a first welding table 11 and a second welding table 12; in the first direction, the multiple first welding tables 11 are sequentially adjacent, and the multiple second welding tables 12 are also sequentially adjacent; the first welding table 11 of the first welding group 1 in the ascending sequence of processing numbers serves as the loading point for material loading; each welding equipment 2 is used to alternately weld vehicle parts on the first welding table 11 and the second welding table 12 of the corresponding welding group 1; according to the ascending sequence of processing numbers, the second welding table 1 of the previous welding group 1 is welded on the welding equipment 2. When welding vehicle parts on welding station 12, the first transfer device 3 moves the vehicle parts that have been welded on the first welding station 11 of the previous welding group 1 to the first welding station 11 of the next welding group 1; according to the reverse order of the processing number, when welding equipment 2 is used to weld vehicle parts on the first welding station 11 of the previous welding group 1, the first transfer device 3 moves the vehicle parts that have been welded on the second welding station 12 of the previous welding group 1 to the second welding station 12 of the next welding group 1; according to the reverse order of the processing number, when the first transfer device 3 moves the vehicle parts that have been welded on the second welding station 12 of the first welding group 1 to the second welding station 12 of the next welding group 1, the second transfer device 4 moves the vehicle parts on the first welding station 11 of the first welding group 1 to the second welding station 12 of the same welding group.

[0023] In this embodiment, the processing number is a pre-defined sequential number, usually a number such as 1, 2, 3, etc. The processing number assigns a fixed and unique sequential identifier to each welding group 1 on the production line. The processing number defines the order in which materials, i.e., vehicle parts, flow in the production line.

[0024] In one specific embodiment, the vehicle component welding production system includes four welding groups 1, which are numbered one, two, three, and four respectively. The corresponding welding groups 1 are referred to as group one, group two, group three, and group four respectively. The forward order of the processing numbers is one, two, three, and four, and the corresponding order in which the vehicle components flow in the production line is group one → group two → group three → group four, with group one being the first welding group 1 and group four being the last welding group 1. Conversely, the reverse order of the processing numbers is four, three, two, and one, and the corresponding order in which the vehicle components flow in the production line is group four → group three → group two → group one, with group four being the first welding group 1 and group one being the last welding group 1.

[0025] One welding machine 2 is responsible for the welding tasks of the corresponding welding group 1. During the working phase of the welding machine 2, the welding machine 2 can alternately weld vehicle parts on the first welding table 11 and the second welding table 12. While welding one table, the other table can be used for loading, unloading, or transfer, thereby improving equipment utilization. The first transfer device 3 is responsible for forward and reverse transportation. One first transfer device 3 is responsible for moving vehicle parts between welding groups 1 with adjacent processing numbers. That is, one first transfer device 3 is responsible for the movement of four welding tables, specifically transferring from one first welding table 11 to another first welding table 11, and from one second welding table 12 to another second welding table 12.

[0026] The vehicle component welding production system provided in this application includes a forward welding stage, a transfer stage, and a reverse welding stage. In the forward welding stage, vehicle components are welded by welding equipment 2 starting from the first welding station 11 of the first welding group 1 and then moved forward by the first transfer equipment 3 to the second welding group 1 for welding. This forward movement and sequential welding process is repeated until the components are moved to the last welding group 1 to complete the final welding of this stage. In the transfer stage, the second transfer equipment 4 acts as a "bridge," moving the vehicle components on the first welding station 11 of the last welding group 1 of the forward welding stage laterally to the second welding station 12 of the same group. The last welding group 1 of the forward welding stage becomes the first welding group 1 of the reverse welding stage, thereby switching the material flow from a "forward sequence" to a "reverse sequence." In the reverse welding stage: after the vehicle parts are welded on the second welding station 12 of the first welding group 1, they are moved "in reverse" by the first transfer device 3 to the second welding station 12 of the second welding group 1 for welding again. This process of directional movement and sequential welding is repeated until the final welding of this stage is completed in the last welding group 1. This forms a complete, non-intersecting, and non-detouring "U"-shaped production path. Through the "forward-in, reverse-out" "U"-shaped movement and welding path, each welding device 2 can alternately weld the materials (vehicle parts) on the first welding station 11 and the second welding station 12. While one welding station is welding, the other welding station can load / unload materials or wait for transfer, eliminating waiting time and achieving near-continuous production. This greatly improves the utilization rate of the welding equipment 2 and the overall production cycle time.

[0027] In one specific embodiment, the production line has three welding groups 1, namely group one, group two, and group three. The entire production process can be divided into three stages: the forward welding stage, the intermediate stage, and the reverse welding stage.

[0028] In the sequential welding phase, the first welding device 2 begins welding vehicle parts placed on a first welding table 11 of a group. The first transfer device 3 moves the welded material from the first welding table 11 of the first group to the first welding table 11 of the second group. The second welding device 2 then welds the material on the first welding table 11 of the second group. The second transfer device 3 then moves the material from the first welding table 11 of the second group to the first welding table 11 of the third group and welds it. At this point, the sequential transfer of material on the first welding table 11 is complete. During this phase, the second welding table 12 of all welding groups 1 is idle or undergoing other operations.

[0029] During the transfer phase, the second transfer device 4 moves the materials that have been welded on the first welding stations 11 of the three groups to the second welding station 12 of its own group. The transfer phase switches the flow direction of the materials from "forward" to "reverse". This realizes the movement of materials from the forward-order first welding station 11 to the reverse-order second welding station 12.

[0030] In the reverse welding stage, welding equipment 2 begins welding vehicle parts placed on the second welding tables 12 of the third group. The first transfer device 3 moves the welded parts from the second welding tables 12 of the third group to the second welding tables 12 of the second group. Welding equipment 2 then welds the material on the second welding tables 12 of the second group. The first transfer device 3 then moves the material from the second welding tables 12 of the second group to the second welding tables 12 of the first group for final welding. In this stage, the material moves in the opposite direction to the forward welding stage. When the material reaches the second welding table 12 of the first group and completes welding, it has completed all processing of all welding groups 1 and is ready to be removed from the production line.

[0031] As an optional implementation, the vehicle parts welding production system further includes a handling device 5 and at least one finished product box 6; the handling device 5 is located on the side of the last welding group 1 in the reverse order of the processing number near the off-line position, and is used to transfer the vehicle parts that have been welded at the off-line point to a preset transport position; wherein, the second welding table 12 of the last welding group 1 in the reverse order of the processing number serves as the off-line point of the material; at least one finished product box 6 is located on the side of the handling device 5 opposite to the last welding group 1 in the reverse order of the processing number, and serves as the transport position to store the vehicle parts that the handling device 5 lifts from the second welding table 12 of the last welding group 1 in the reverse order of the processing number.

[0032] Based on the aforementioned embodiments, in this embodiment, a dedicated handling device 5 is set at the end of the reverse welding stage, clearly defining the welding exit position of the vehicle parts. This allows the finished vehicle parts to be removed from the production line in a timely and orderly manner, clearing the workstation for the arrival of the next material. The material removed from the production line can then proceed to the next process, such as inspection or assembly, thus ensuring a smooth connection of the entire production process. The end point of the aforementioned reverse welding stage is the second welding station 12 of the last reverse welding group 1, which is also the second welding station 12 of the first forward welding group 1. This second welding station 12 is the end point of the production line in this embodiment; the first welding station 11 of the first forward welding group 1, which is the first welding station 11 of the last reverse welding group 1, is the starting point of the production line in this embodiment.

[0033] The welded vehicle parts are stored in a centralized manner, and the finished product frame 6 serves as an "output buffer". It can be a standardized container or a customized rack, which is convenient for forklifts or AGVs (automated guided vehicles) to access and is easier to integrate into an automated logistics system.

[0034] In some embodiments, the first welding station 11 and the second welding station 12 have the same structure and are both used to support vehicle parts.

[0035] In some embodiments, the welding equipment 2 is a welding robot or a gantry manipulator.

[0036] In some embodiments, the handling device 5 is a handling robot or a gantry robot.

[0037] In some embodiments, the first transfer device 3 and the second transfer device 4 are both transfer robots or gantry manipulators.

[0038] In some embodiments, the handling device 5, the first transfer device 3, and the second transfer device 4 have the same structure.

[0039] like Figure 1 As shown, in one optional implementation, all welding groups 1 are arranged sequentially and linearly along the first direction according to their processing numbers; the first welding station 11 and the second welding station 12 of the same welding group 1 are arranged along the second direction; the first welding stations 11 of all welding groups 1 are arranged sequentially along the first direction; the second welding stations 12 of all welding groups 1 are arranged sequentially along the first direction; the first welding stations 11 and the second welding stations 12 of the same welding group 1 are spaced apart; and the welding equipment 2 is disposed between the first welding stations 11 and the second welding stations 12 of the same welding group 1.

[0040] The first direction and the second direction are perpendicular. Multiple first welding stations 11 and multiple second welding stations 12 are arranged in an array. All first welding stations 11 of welding group 1 are arranged in a straight line, and all second welding stations 12 of welding group 1 are arranged in a straight line, forming two clear longitudinal logistics channels. This layout is very compact and can achieve a longer process path within a limited factory area, avoiding the disadvantage of long-distance return at the end of traditional straight production lines.

[0041] Two welding stations in the same welding group 1 are arranged laterally at intervals, leaving space in the middle for welding equipment 2. All first welding stations 11 are arranged in a line, and all second welding stations 12 are arranged in another parallel line. Welding equipment 2 is located between these two lines and can switch between the two lines like a "pendulum," allowing one welding equipment 2 to cover two welding stations with minimal movement, such as by rotation or short-distance movement, thus achieving high utilization of welding equipment 2.

[0042] The first welding station 11 and the second welding station 12 are existing equipment, and their specific structures will not be described in detail.

[0043] As an optional implementation, the welding equipment includes a first support base, a detachably connected welding arm and welding torch, and a first drive device and a first rotating shaft connected in sequence. The first drive device 22 and the first rotating shaft 23, connected in sequence, are both mounted on the first support base 21. The output end of the first drive device 22 is connected to the first rotating shaft 23 to drive the first rotating shaft 23 to rotate around its own axis. The first end of the welding arm 24 is connected to the welding torch 25, and the second end of the welding arm 24 is rotatably connected to the first rotating shaft 23. Under the drive of the first rotating shaft 23, they rotate synchronously to move towards the first welding table 11 or the second welding table 12 of the same welding group 1, and alternately weld vehicle parts on the first welding table 11 and the second welding table 12.

[0044] Based on the aforementioned embodiments, in this embodiment, the first drive motor 22 provides power, and after the torque is increased and the speed is controlled by the first reducer, it drives the first rotating shaft 23 to rotate precisely. The welding arm 24 is fixed on the first rotating shaft 23 and rotates synchronously with it. When it is necessary to weld the material on the first welding table 11, the rotating shaft drives the welding arm 24 to turn towards the first welding table 11; after welding is completed, it turns towards the second welding table 12 and welds the material on the second welding table 12. Through the combination of the first drive motor 22, the first reducer and the first rotating shaft 23, a stable, controllable and powerful rotational motion is provided for the welding arm 24, ensuring that the welding arm 24 can quickly and accurately reach the working positions of the two welding tables, realizing alternating welding of the forward welding stage and the reverse welding stage. The working mode of the welding equipment 2 is "welding the material on the first welding table 11 → rotating towards the second welding table 12 → welding the material on the second welding table 12 → rotating towards the first welding table 11...", and so on, in an alternating cycle.

[0045] In some embodiments, the welding equipment 2 includes a pair of welding robots that cooperate with each other.

[0046] like Figure 1 As shown, in one optional implementation, the first transfer device 3 is disposed between two adjacent welding groups 1; the second transfer device 4 is disposed on the side opposite to the previous welding group 1 in the ascending sequence of the processing number.

[0047] Based on the aforementioned embodiments, in this embodiment, the first transfer device 3 is positioned in the "corridor" between the two groups, responsible for the "vertical" transfer of materials. The second transfer device 4 is located at the end of the forward welding sequence and also at the beginning of the reverse welding sequence. The second transfer device 4 is responsible for the "lateral" transfer, realizing the "return" of materials. This layout avoids conflicts between different transfer devices in the workspace, requiring only fixed actions at fixed points, reducing the complexity of movement and the difficulty of control.

[0048] like Figure 1-3 As shown, in one optional implementation, the first transfer device 3 and / or the second transfer device 4 include a second support base 100, a transfer arm 400, a gripper 500, and a second drive motor 200 and a second rotating shaft 300 connected in sequence. The second drive motor 200 and the second rotating shaft 300 are both mounted on the second support base 100. The output end of the second drive motor 200 is connected to the second rotating shaft 300, enabling the second rotating shaft 300 to rotate around its own axis. The transfer arm 400 is connected to the end of the second rotating shaft 300 away from the output end of the second drive motor 200, and the transfer arm 400 rotates synchronously under the drive of the second rotating shaft 300. The gripper 500 is mounted on the end of the transfer arm 400 away from the second rotating shaft 300 and is used to grip or release vehicle parts.

[0049] Based on the aforementioned embodiments, in this embodiment, the second drive motor 200 provides power, and after the torque is increased and the speed is controlled by the second reducer, it drives the second rotating shaft 300 to rotate precisely. The transfer arm 400 is fixed on the second rotating shaft 300 and rotates synchronously with it, thereby driving the gripper 500 to move synchronously. The gripper 500 completes the gripping or releasing of materials by opening and closing. The gripper 500 can be pneumatic, hydraulic, or electric, and the specific type and structure can be customized according to the specific shape and characteristics of the components.

[0050] The second rotating shaft 300, in conjunction with the transfer arm 400 and the gripper 500, can precisely grasp materials from a welding station, then rotate them at an angle, typically 180 degrees, and accurately place them on the next target welding station. This "rotation-pickup and drop-off" action is highly efficient, has a fast cycle time, and improves handling efficiency.

[0051] like Figure 1 As shown, as an optional implementation, the first welding group 1 in the processing number sequence further includes a first assembly slide 13, which is connected to the first welding table 11 of the first welding group 1 in the processing number sequence via a slide rail. The first assembly slide 13 is used to assemble vehicle parts.

[0052] The first assembly slide 13 serves as a "pre-assembly area," where operators or auxiliary equipment assemble components and then slide them onto the first welding table 11 via a slide rail. At this point, the welding equipment 2 can immediately begin operation, while the first assembly slide 13 begins preparing for the next material, achieving seamless integration of the production process.

[0053] In some embodiments, welding group 1 further includes a second assembly slide, which is connected to the first welding table 11 of the second welding group 1 in the processing number via a slide rail. The first welding table 11 and the second assembly slide of the second welding group 1 cooperate with each other. The second assembly slide serves as a "pre-assembly area," where the operator or auxiliary equipment assembles the parts and then slides them into the first welding table 11 via the slide rail. If the loading, placement, clamping, and tack welding of all parts are concentrated in one station, the operation time will be too long. Therefore, a cooperative system of two sets of "welding tables and assembly slides" can be set up to decompose the overall assembly task into two shorter tasks to be performed in parallel, thereby shortening the operation time.

[0054] In one specific embodiment, the vehicle component welding production system is used to produce automotive door inner panels. The vehicle component welding production system includes three welding groups 1, three welding robots, one handling device 5, two first transfer devices 3, and one second transfer device 4.

[0055] The processing numbers for the three welding groups 1 are one, two, and three, respectively, and the corresponding welding groups 1 are referred to as group one, group two, and group three. The first welding station 11 of group one is named 1#, and the first welding station 11 of group one is also connected to the first assembly slide 13; the second welding station 12 of group one is named 6#; the first welding station 11 of group two is named 2#, and the second welding station 12 of group two is named 5#; the first welding station 11 of group three is named 3#, and the second welding station 12 of group three is named 4#.

[0056] The three welding robots are named R1, R2, and R3 respectively. R1 is responsible for the welding tasks of Group 1, and also handles the welding tasks of robots #1 and #6; R2 is responsible for the welding tasks of Group 2, and also handles the welding tasks of robots #2 and #5; R3 is responsible for the welding tasks of Group 3, and also handles the welding tasks of robots #3 and #4.

[0057] The two first transfer devices 3 are named UR1 and UR2 respectively. UR1 is responsible for the transfer between group 1 and group 2; UR2 is responsible for the transfer between group 2 and group 3.

[0058] The material moves sequentially along positions 1, 2, and 3, then from 3 to 4, and then sequentially along positions 4, 5, and 6. More specifically, during the phase where the material moves sequentially along positions 1, 2, and 3, three welding robots can weld the material on positions 4, 5, and 6; during the phase where the material moves sequentially along positions 4, 5, and 6, three welding robots can weld the material on positions 1, 2, and 3.

[0059] More specifically, #1 is used for assembly and tack welding. R1 is responsible for tack welding when welding #1, initially fixing multiple stamped parts of the inner door panel together using simple tack welding to form a semi-finished assembly. #2, #3, #4, #5, and #6 are used for repair welding. R1 performs complete repair welding along the weld seam based on the tack welding when welding #6, and when welding R2 and R3. Each welding device 2 has a pre-stored welding program in its built-in controller. When R1 rotates and positions itself to #1, its position detection module (e.g., an RFID tag fixed to the welding table and an RFID reader mounted on the welding arm) detects the signal at #1. R1's built-in controller immediately recalls the tack welding program preset for "#1" from its memory. This program includes all parameters such as welding path, current, voltage, and speed. When R1 rotates to #6, R1's position detection module detects the signal at #6. R1's built-in controller immediately recalls the repair welding program preset for "#6" from its memory. During the material flow process, each welding device 2 processes the material according to its preset program until it comes off the line at #6, completing all welding work.

[0060] Based on the same inventive concept, this application provides a vehicle production method, which is applied to the vehicle component welding production system of any of the foregoing embodiments. The vehicle production method mainly includes: First material transfer stage: According to the preset first material transfer plan, the first transfer equipment 3 is controlled to sequentially transport the vehicle parts that have been welded on the first welding table 11, and to replenish the vehicle parts to be processed through the online point of the material loading line. First material welding stage: Control all welding equipment 2 to simultaneously weld the vehicle parts on the second welding table 12 of the corresponding welding group 1; Second material welding stage: Control all welding equipment 2 to simultaneously weld the vehicle parts on the first welding table 11 of the corresponding welding group 1; Second material transfer stage: According to the preset second material transfer plan, control the handling equipment 5 to transfer the welded vehicle parts from the material unloading point to the preset transport position; control the first transfer equipment 3 to sequentially transport the welded vehicle parts on the second welding table 12; Third material transfer stage: Control the second transfer equipment 4 to move the vehicle parts on the first welding table 11 of the target welding group to the second welding table 12 of the same welding group 1; Repeat the following steps: the first material transfer stage overlaps with the first material welding stage; after both the first material transfer stage and the first material welding stage are completed, the second material welding stage overlaps with the second material transfer stage; after both the first material transfer stage and the first material welding stage are completed, the third material transfer stage is performed; until a production end instruction is received.

[0061] In the first material transfer stage, the first welding station 11 of the first welding group 1 in the ascending order of the processing number is used as the loading point of the material; in the second material transfer stage, the second welding station 12 of the last welding group 1 in the descending order of the processing number is used as the unloading point of the material; in the third material transfer stage, the target welding group 1 is the first welding group 1 in the descending order of the processing number.

[0062] Based on the foregoing embodiments, this embodiment operates cyclically in units of a complete production cycle. Each cycle contains multiple closely linked and partially parallel stages until a production end instruction is received. Wherein: The first material transfer stage and the first material welding stage are executed in parallel. During this parallel execution stage, according to a preset transfer logic, the first transfer equipment 3 is controlled to transport vehicle parts that have completed the previous welding process from each first welding table 11 to the first welding table 11 of the next welding group 1, following the ascending order of their processing numbers. Simultaneously, new parts to be processed are replenished through the material loading point (i.e., the first welding table 11 of the first welding group 1 in the ascending order of processing numbers). For example, parts that have been assembled from the first assembly slide 13 can be transported to this loading point. Simultaneously with the above-mentioned transport process, all welding equipment 2 is controlled to start synchronously, welding the vehicle parts already placed on the second welding table 12 of their corresponding welding group 1.

[0063] The parallel design at this stage ensures that material handling and welding processes do not interfere with each other, eliminating equipment waiting time.

[0064] The second material welding stage and the second material transfer stage are executed in parallel. After the first material transfer stage and the first material welding stage are completed in parallel, all welding equipment 2 are controlled to rotate synchronously and then weld the vehicle parts on the first welding table 11 of the corresponding welding group 1 (i.e., the parts that have just been moved to the position by the first transfer equipment 3). At the same time as this welding process, the control system controls the transfer equipment 5 to transfer the vehicle parts that have completed all welding processes from the material unloading point (i.e., the second welding table 12 of the last welding group 1 in the reverse order of the processing number) to the preset finished product frame 6; in addition, the control system also controls the first transfer equipment 3 to transfer the vehicle parts that have completed stage welding on each second welding table 12 to the second welding table 12 of the next welding group 1 in the reverse order of the processing number.

[0065] The third material transfer stage. After the second material welding stage and the second material transfer stage are executed in parallel, the second transfer device 4 is controlled to move the vehicle parts that have completed stage welding on the first welding table 11 of the target welding group (the target welding group is the first welding group 1 in the reverse order of the processing number, i.e., the last welding group in the forward order) to the second welding table 12 of the same welding group 1. This material transfer stage completes the switch of the material flow from the forward sequence (first welding table flow) to the reverse sequence (second welding table flow), forming the turning point of the U-shaped path.

[0066] The process is repeated cyclically. After the third material transfer stage is completed, the production line returns to the state before the first material transfer stage and the first material welding stage were executed in parallel (all second welding stations 12 have parts to be welded placed on them). The steps of "parallel execution of the first material transfer stage and the first material welding stage", "parallel execution of the second material welding stage and the second material transfer stage" and "third material transfer stage" are repeated in sequence, forming continuous production until a production end instruction is received from an external input.

[0067] Welding, transfer, and loading / unloading operations highly overlap in time, allowing for parallel welding and transfer to maximize equipment utilization. Simultaneously, materials flow along a U-shaped path with forward entry and reverse exit, resulting in a compact layout and a significant improvement in production efficiency.

[0068] As an optional implementation, the first welding group 1 in the processing number sequence also includes a first assembly slide 13. The first assembly slide 13 is connected to the first welding table 11 of the first welding group 1 in the processing number sequence via a slide rail. The first assembly slide 13 is used to assemble vehicle parts.

[0069] According to the preset first material transport plan, the first transfer device 3 is controlled to sequentially transport the vehicle parts that have been welded on the first welding table 11, including: According to the sequential order of the processing number, when the first transfer device 3 is welding the vehicle parts on the second welding table 12 of the previous welding group 1 on the welding device 2, it will transfer the vehicle parts that have been welded on the first welding table 11 of the previous welding group 1 to the first welding table 11 of the next welding group 1. The replenishment of vehicle parts awaiting processing through the material delivery points includes: After the vehicle parts that have been welded on the first welding table 11 of the first welding group in the processing number sequence are removed, the vehicle parts that have been assembled from the first assembly slide 13 are transported to the first welding table 11.

[0070] Based on the aforementioned embodiments, in this embodiment, after the first transfer device 3 removes the vehicle parts from the first welding table 11 of the first welding group 1, the first welding table 11 enters an idle state. The first assembly slide 13 transports the vehicle parts that have been assembled manually or by automated equipment (but not yet welded) to the idle first welding table 11 of the welding group 1 via a connected slide. This ensures that the material replenishment at the production line is timely, reduces material transfer and waiting, and thus ensures the continuity of production.

[0071] As an optional implementation, the first transfer device 3 is controlled to sequentially transport the vehicle parts that have been welded on the second welding table 12; the second transfer device 4 is controlled to transport the vehicle parts on the first welding table 11 of the target welding group 1 to the second welding table 12 of the same welding group 1, including: According to the reverse order of the processing number, when the welding equipment 2 is welding the vehicle parts on the first welding table 11 of the previous welding group 1, the first transfer equipment 3 is controlled to move the vehicle parts that have been welded on the second welding table 12 of the previous welding group 1 to the second welding table 12 of the next welding group 1. In reverse order of the processing number, when the first transfer device 3 moves the vehicle parts that have been welded on the second welding table 12 of the first welding group 1 to the second welding table 12 of the next welding group 1, the second transfer device 4 controls the vehicle parts on the first welding table 11 of the first welding group 1 to the second welding table 12 of the same welding group.

[0072] Based on the aforementioned embodiments, this embodiment clarifies the actions and collaborative relationships of the first transfer device 3 and the second transfer device 4 in the reverse process. Following the reverse order of the processing numbers, the first transfer device 3 is controlled to move the welded vehicle parts in the reverse direction. Finally, the second transfer device 4 is controlled to transport the vehicle parts from the first welding table 11 of the first welding group in the reverse processing number to the second welding table 12, which is about to be empty or has already been empty due to the aforementioned movement. This clarifies the precise path of materials during the reverse process, ensuring that all second welding tables 12 are filled with materials at the end of the second material welding stage, preparing for the next round of the first material welding stage.

[0073] As an optional implementation method, the vehicle production method further includes: Get the current production workload; Based on the pre-set correspondence between production workload and equipment operation plan, and the current production workload, determine the current equipment operation plan; The current operating equipment plan includes the number of welding groups 1 that need to be operated in multiple welding groups 1 configured according to the preset processing number, the number of welding equipment 2 corresponding to the welding groups 1 that need to be operated, the number of first transfer equipment 3 corresponding to the welding groups 1 that need to be operated, and the number of second transfer equipment 4 that need to be operated. If the number of operations of the second transfer device 4 is 0, then the first transfer device 3 corresponding to the last welding group 1 in the operating welding group 1 according to the processing number in ascending order will be configured to replace the function of the second transfer device 4. When the vehicle parts that have been welded on the second welding table 12 of the last welding group 1 are moved to the second welding table 12 of the previous welding group 1, the vehicle parts on the first welding table 11 of the last welding group 1 will be moved to the second welding table 12 of the same welding group. Based on the current equipment operation plan, the following steps are repeated: the first material transfer stage overlaps with the first material welding stage; after both the first material transfer stage and the first material welding stage are completed, the second material welding stage overlaps with the second material transfer stage; after both the first material transfer stage and the first material welding stage are completed, the third material transfer stage is performed; until a production end instruction is received.

[0074] Based on the aforementioned embodiments, in this embodiment, the number of operations of the second transfer device 4 is less than or equal to 1; the above scheme can dynamically scale the production scale according to the production workload. The preset "production workload - operating equipment scheme" correspondence defines the optimal equipment start-stop combination corresponding to different workloads. Different production schemes are adapted according to different production volumes, especially in the low-volume stage, where only some equipment is operated, saving consumption and reducing equipment mechanical wear.

[0075] If there are 4 welding groups, 3 first transfer devices and 1 second transfer device, and the workload is 60 JPH, then all welding groups, the first transfer device and the second transfer device will run; if the workload is 45 JPH, then 3 welding groups, 3 first transfer devices and 0 second transfer devices will run sequentially according to the processing number; if the workload is 30 JPH, then 2 welding groups, 2 first transfer devices and 0 second transfer devices will run sequentially according to the processing number.

[0076] When 0 second transfer devices are running, the functions of the second transfer devices need to be transferred and allocated. That is, the functions of the dedicated second transfer devices are replaced by the first transfer devices at the end. While reducing the system size, the integrity of the production logic is still maintained.

[0077] If the workload remains unchanged, the current plan will continue. If the production workload changes, the steps to determine the current operating equipment plan will be repeated, and the system will switch to the new operating equipment plan.

[0078] Based on the aforementioned specific embodiments, three welding robots R1, R2, and R3 simultaneously weld vehicle parts on the second welding tables 12 (4#, 5#, and 6#) of three welding groups 1. During this welding process, newly assembled vehicle parts are added to table 1#. After the materials on tables 4#, 5#, and 6# are welded, tables 1#, 2#, and 3# all have vehicle parts. The three welding robots R1, R2, and R3 simultaneously weld the vehicle parts on tables 1#, 2#, and 3#. During this welding stage, the handling equipment 5 transports the vehicle parts on table 6# to the finished product frame 6. The vehicle parts on table 5# are transported by UR1. Vehicle parts from #4 are moved to #5 by UR2; after welding is completed on #1, #2, and #3, the second transfer device 4 moves the vehicle parts from #3 to #4; #4, #5, and #6 all have vehicle parts, and the three welding robots R1, R2, and R3 then simultaneously weld the vehicle parts on #4, #5, and #6. During this welding process, UR2 moves the vehicle parts from #2 to #3, UR1 moves the vehicle parts from #1 to #2, and the vehicle parts assembled on the first assembly slide 13 are moved to #1 to replenish newly assembled vehicle parts. This process is repeated to achieve parallel welding and transfer, eliminating waiting time and increasing the welding robot utilization rate from 50% to 100%, thus solving the problem of low welding robot utilization in conventional layout methods. The material handling equipment 5 is positioned between the two welding groups 1. This equipment can handle material handling tasks for both the "forward welding stage" and the "reverse welding stage" of the four welding stations. The utilization rate of the material handling equipment 5 has increased from 33% to 50%, significantly reducing the number of equipment units required and improving its utilization rate. This solves the problems of high investment costs and low utilization rates associated with conventional layouts of conveyor systems. Welding robots are positioned between the first welding station 11 and the second welding station 12 within the same group, allowing for robot sharing. The number of robots has been reduced from 11 to 6, addressing the issue of shared welding stations and high investment costs. The resulting U-shaped layout is more compact, occupying an area of ​​12 x 21.5 square meters each, or 258 square meters, a 15% reduction compared to conventional layouts. In the U-shaped layout, the beginning and end of the production line are at the same end, while the other end is in the middle. This allows for flexible capacity adjustment by adding or removing welding stations without altering the existing ones, thus increasing or decreasing the cycle time.

[0079] In the description of this application, it should be understood that the terms "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship 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.

[0080] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0081] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" 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 direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0082] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0083] The above description is only a partial embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A welding production system for vehicle parts, characterized in that, It includes multiple welding groups (1) configured according to preset processing numbers, multiple welding equipment (2) corresponding one-to-one with the multiple welding groups (1), a first transfer device (3) and a second transfer device (4); Multiple welding groups (1) are arranged sequentially along a first direction according to a preset processing number; each welding group (1) includes a first welding table (11) and a second welding table (12); in the first direction, multiple first welding tables (11) are adjacent to each other in sequence, and multiple second welding tables (12) are also adjacent to each other in sequence; the first welding table (11) of the first welding group (1) in the positive sequence of processing numbers is used as the online point for material loading; Each of the welding devices (2) is used to alternately weld vehicle parts on the first welding table (11) and the second welding table (12) corresponding to the welding group (1); According to the forward order of the processing number, when welding the vehicle parts on the second welding table (12) of the previous welding group (1) in the welding equipment (2), the first transfer equipment (3) moves the vehicle parts that have been welded on the first welding table (11) of the previous welding group (1) to the first welding table (11) of the next welding group (1); according to the reverse order of the processing number, when welding the vehicle parts on the first welding table (11) of the previous welding group (1) in the welding equipment (2), the first transfer equipment (3) moves the vehicle parts that have been welded on the second welding table (12) of the previous welding group (1) to the second welding table (12) of the next welding group (1); According to the reverse order of the processing number, when the first transfer device (3) moves the vehicle parts that have been welded on the second welding table (12) of the first welding group (1) to the second welding table (12) of the next welding group (1), the second transfer device (4) moves the vehicle parts on the first welding table (11) of the first welding group (1) to the second welding table (12) of the same welding group.

2. The vehicle component welding production system according to claim 1, characterized in that, Also includes: The handling equipment (5) is set on the side of the last welding group (1) in the reverse order of the processing number, near the unloading position, and is used to transfer the vehicle parts that have been welded at the unloading point to the preset transport position; wherein, the second welding table (12) of the last welding group (1) in the reverse order of the processing number is the unloading point of the material unloading line. At least one finished product frame (6) is provided on the side of the handling equipment (5) opposite to the last welding group (1) in the reverse order of the processing number, as the location to be transported to store vehicle parts picked up by the handling equipment (5) from the second welding table (12) of the last welding group (1) in the reverse order of the processing number.

3. The vehicle component welding production system according to claim 1, characterized in that, All of the welding groups (1) are arranged sequentially and linearly along the first direction according to the processing number; The first welding station (11) and the second welding station (12) of the same welding group (1) are arranged along the second direction; The first welding stations (11) of all the welding groups (1) are arranged sequentially along the first direction; The second welding stations (12) of all the welding groups (1) are arranged sequentially along the first direction; The first welding station (11) and the second welding station (12) of the same welding group (1) are arranged at intervals; The welding equipment (2) is located between the first welding station (11) and the second welding station (12) of the same welding group (1).

4. The vehicle component welding production system according to any one of claims 1-3, characterized in that, The welding equipment (2) includes: First support seat (21); The first drive device (22) and the first rotating shaft (23) connected in sequence are both installed on the first support base (21). The output end of the first drive device (22) is connected to the first rotating shaft (23) to drive the first rotating shaft (23) to rotate around its own axis. A detachable welding arm (24) and a welding torch (25); the first end of the welding arm (24) is connected to the welding torch (25), and the second end of the welding arm (24) is rotatably connected to the first rotating shaft (23). Under the drive of the first rotating shaft (23), the welding arm (24) rotates synchronously to move to the first welding table (11) or the second welding table (12) of the same welding group (1) to alternately weld vehicle parts on the first welding table (11) and the second welding table (12).

5. The vehicle component welding production system according to claim 3, characterized in that, The first transfer device (3) is disposed between two adjacent welding groups (1); The second transfer device (4) is located on the side opposite to the previous welding group (1) of the last welding group (1) in the ascending sequence of the processing number.

6. The vehicle component welding production system according to claim 5, characterized in that, The first transfer device (3) and / or the second transfer device (4) include: Second support (100); The second drive motor (200) and the second rotating shaft (300) connected in sequence are both mounted on the second support base (100). The output end of the second drive motor (200) is connected to the second rotating shaft (300) to realize the rotation of the second rotating shaft (300) around its own axis. The transfer arm (400) is connected to one end of the second rotating shaft (300) away from the output end of the second drive motor (200), and the transfer arm (400) rotates synchronously under the drive of the second rotating shaft (300); A gripper (500) is installed at one end of the transfer arm (400) away from the second rotating shaft (300) for gripping or releasing vehicle parts.

7. The vehicle component welding production system according to claim 1, characterized in that, The first welding group (1) in the processing number sequence also includes: The first assembly slide (13) is connected to the first welding table (11) of the first welding group (1) in the processing number sequence via a slide rail. The first assembly slide (13) is used to assemble vehicle parts.

8. A vehicle manufacturing method, applied to a vehicle component welding production system as described in any one of claims 1-7, characterized in that, include: First material transfer stage: According to the preset first material transfer plan, control the first transfer equipment (3) to sequentially transport the vehicle parts that have been welded on the first welding table (11), and supplement the vehicle parts to be processed through the online point of the material line; the first welding table (11) of the first welding group (1) in the processing number sequence is used as the online point of the material line. First material welding stage: Control all welding equipment (2) to simultaneously weld the vehicle parts on the corresponding welding group (1) and the second welding table (12); Second material welding stage: Control all welding equipment (2) to simultaneously weld the vehicle parts on the first welding table (11) of the corresponding welding group (1); Second material transfer stage: According to the preset second material transfer plan, control the handling equipment (5) to transfer the completed welding vehicle parts from the material off-line point to the preset transport position; control the first transfer equipment (3) to sequentially transport the completed welding vehicle parts on the second welding table (12); wherein, the second welding table (12) of the last welding group (1) in the reverse order of the processing number is used as the material off-line point; Third material transfer stage: Control the second transfer equipment (4) to move the vehicle parts on the first welding table (11) of the target welding group to the second welding table (12) of the same welding group (1); the target welding group (1) is the first welding group (1) in the reverse order of the processing number; Repeat the following steps: the first material transfer stage overlaps with the first material welding stage; after both the first material transfer stage and the first material welding stage are completed, the second material welding stage overlaps with the second material transfer stage; after both the first material transfer stage and the first material welding stage are completed, the third material transfer stage is performed; until a production end instruction is received.

9. The vehicle production method according to claim 8, characterized in that, The first welding group (1) in the processing number sequence further includes a first assembly slide (13), which is connected to the first welding table (11) of the first welding group (1) in the processing number sequence via a slide rail. The first assembly slide (13) is used to assemble vehicle parts. According to the preset first material transport plan, the first transfer equipment (3) is controlled to sequentially transport the vehicle parts that have been welded on the first welding table (11), including: According to the order of the processing number, when the first transfer device (3) is welding the vehicle parts on the second welding table (12) of the previous welding group (1) on the welding device (2), the vehicle parts that have been welded on the first welding table (11) of the previous welding group (1) are transferred to the first welding table (11) of the next welding group (1). Supplementing vehicle parts awaiting processing through the material delivery points, including: After the vehicle parts that have been welded on the first welding table (11) of the first welding group (1) in the processing number sequence are removed, the vehicle parts that have been assembled from the first assembly slide (13) are transported to the first welding table (11).

10. The vehicle production method according to claim 8, characterized in that, Controlling the first transfer device (3) to sequentially transport the vehicle parts that have been welded on the second welding table (12); controlling the second transfer device (4) to transport the vehicle parts on the first welding table (11) of the target welding group (1) to the second welding table (12) of the same welding group (1), including: According to the reverse order of the processing number, when the welding equipment (2) welds the vehicle parts on the first welding table (11) of the previous welding group (1), the first transfer equipment (3) is controlled to move the vehicle parts that have been welded on the second welding table (12) of the previous welding group (1) to the second welding table (12) of the next welding group (1). According to the reverse order of the processing number, when the first transfer device (3) moves the vehicle parts that have been welded on the first welding group (1) second welding table (12) to the next welding group (1) second welding table (12), the second transfer device (4) is controlled to move the vehicle parts on the first welding group (1) first welding table (11) to the second welding table (12) of the same welding group.

11. The vehicle production method according to claim 8, characterized in that, Also includes: Get the current production workload; Based on the pre-set correspondence between the production workload and the operating equipment plan, and the obtained current production workload, determine the current operating equipment plan; The current operating equipment scheme includes the number of welding groups (1) to be operated in multiple welding groups (1) configured according to the preset processing number, the welding equipment (2) corresponding to the welding group (1) to be operated, the first transfer equipment (3) corresponding to the welding group (1) to be operated, and the number of second transfer equipment (4) to be operated, wherein the number of second transfer equipment (4) to be operated is less than or equal to 1. If the number of operations of the second transfer device (4) is 0, the first transfer device (3) corresponding to the last welding group (1) in the operating welding group (1) according to the processing number in ascending order will be configured to replace the function of the second transfer device (4). When the vehicle parts that have been welded on the second welding table (12) of the last welding group (1) are moved to the second welding table (12) of the previous welding group (1), the vehicle parts on the first welding table (11) of the last welding group (1) will be moved to the second welding table (12) of the same welding group. Based on the current equipment operation plan, the following steps are repeated: the first material transfer stage overlaps with the first material welding stage; after both the first material transfer stage and the first material welding stage are completed, the second material welding stage overlaps with the second material transfer stage; after both the first material transfer stage and the first material welding stage are completed, the third material transfer stage is performed; until a production end instruction is received.

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