Frame welding line
By designing a frame welding production line integrating five workstations and utilizing multiple welding robots and rotary drive devices, the problems of numerous processes and long production lines in existing technologies have been solved, enabling efficient welding production of electric tricycle frames.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN AIMA VEHICLE TECH CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-26
AI Technical Summary
The existing chassis welding production line has many processes and a long production line, resulting in low production efficiency.
Design a vehicle frame welding production line, including five workstations arranged in sequence: a first component welding workstation, a second component welding workstation, and three vehicle frame assembly welding workstations. Employ multiple welding robots and rotary drive devices, combined with conveyor devices, to achieve process integration and workstation alternation, thereby simplifying the production process.
By simplifying processes and shortening production line length, welding efficiency is improved and manual labor intensity is reduced, making it suitable for efficient welding production of electric tricycle frames.
Smart Images
Figure CN224406770U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle production equipment technology, and in particular to a vehicle frame welding production line. Background Technology
[0002] Today, non-motorized vehicles are widely used by consumers as daily transportation tools, especially electric two-wheelers and electric tricycles. The frame of an electric vehicle is the supporting and fixing component of the entire vehicle, and also a crucial component connecting and supporting other parts. Taking the frame of an electric tricycle as an example, it is generally welded together from multiple tubular components and sheet metal parts. The welding of the electric tricycle frame is one of the most important steps in the manufacturing process, requiring extremely high welding quality.
[0003] However, in the existing technology, the frame welding production line usually has multiple processes, resulting in a large number of processes and a long production line.
[0004] Therefore, this application provides a new vehicle frame welding production line to address the above-mentioned problems. Utility Model Content
[0005] The purpose of this utility model is to provide a vehicle frame welding production line to at least alleviate the technical problems of numerous vehicle frame welding production processes and long production lines in the prior art.
[0006] To achieve the above objectives, this utility model provides a vehicle frame welding production line, which includes a first component welding station, a second component welding station, and three vehicle frame assembly welding stations arranged in sequence.
[0007] The first component welding station includes a first welding robot and a first welding worktable for clamping the workpiece to be welded. The first welding robot is capable of welding the workpiece to be welded on the first welding worktable.
[0008] The second component welding station includes a second welding robot and a second welding worktable for clamping the workpiece to be welded. There are two second welding robots, and the two second welding robots can weld different parts of the workpiece to be welded on the second welding worktable respectively.
[0009] The chassis assembly welding station includes a third welding robot and a third welding workbench. The third welding workbench is equipped with a rotating device, which drives a fixture fixing platform for clamping the workpiece to be welded. The rotating device can drive the fixture fixing platform to rotate. There are two third welding robots, which can weld different parts of the workpiece to be welded on the fixture fixing platform respectively.
[0010] Furthermore, the first component welding station also includes a first rotary drive device and a first rotary base, the first welding worktable is disposed on the first rotary base, and there are two first welding worktables;
[0011] The first rotary drive device is connected to the first rotary base and can drive the first rotary base to rotate so that the two first welding worktables are alternately located in the welding area of the first welding robot.
[0012] Furthermore, the first component welding station also includes a first partition plate disposed on the first rotating base, the first partition plate separating the two first welding workbenches.
[0013] Furthermore, the second component welding station also includes a second rotary drive device and a second rotary base, the second welding worktable is disposed on the second rotary base, and there are two second welding worktables;
[0014] The second rotary drive device is connected to the second rotary base and can drive the second rotary base to rotate so that the two second welding worktables are alternately located in the welding area formed by the two second welding robots, wherein the two second welding robots are spaced apart along the rotation direction of the second rotary base.
[0015] Furthermore, the second component welding station also includes a second partition plate disposed on the second rotating base, the second partition plate separating the two second welding workbenches.
[0016] Furthermore, the frame assembly welding station also includes a third rotary drive device and a third rotary base, the third welding workbench is disposed on the third rotary base, and there are two third welding workbenches;
[0017] The third rotary drive device is connected to the third rotary base and can drive the third rotary base to rotate so that the two third welding worktables are alternately located in the welding area formed by the two third welding robots, wherein the two third welding robots are spaced apart along the rotation direction of the third rotary base.
[0018] Furthermore, the chassis assembly welding station also includes a third partition plate disposed on the third rotating base, the third partition plate separating the two third welding workbenches.
[0019] Furthermore, among the first component welding station, the second component welding station, and the three frame assembly welding stations, each adjacent station is equipped with a conveying device capable of transferring the workpiece to be welded.
[0020] Furthermore, the conveying device between the first component welding station and the second component welding station, and between the second component welding station and the first frame assembly welding station, is a conveyor belt device;
[0021] The conveying device between the first and second frame assembly welding stations, and between the second and third frame assembly welding stations, is a cantilevered track device.
[0022] Furthermore, the first component welding station, the second component welding station, and the three frame assembly welding stations are arranged in a linear sequence.
[0023] By adopting the above technical solution, the vehicle frame welding production line of this utility model has at least the following beneficial effects:
[0024] The chassis welding production line includes five welding stations, namely: the first component welding station, the second component welding station, the first chassis assembly welding station, the second chassis assembly welding station, and the third chassis assembly welding station.
[0025] During the frame welding process, at the first component welding station, the first welding robot welds the rear seat base frame and rear seat side frame, etc., on the first welding workbench to form the rear seat assembly. At the second component welding station, two second welding robots weld the head tube, front beam tube, and head tube reinforcement frame, etc., on the second welding workbench to form the head tube assembly. Then, at the first frame assembly welding station, two third welding robots weld the rear seat assembly, head tube assembly, foot tube, and bottom tube, etc., on the tooling fixing table to form the complete vehicle frame. Next, at the second frame assembly welding station, two third welding robots weld various components onto the complete vehicle frame on the tooling fixing table to form the frame assembly. Finally, at the third frame assembly welding station, two third welding robots perform additional welding on the frame assembly on the tooling fixing table.
[0026] In the chassis assembly welding station, a rotating device on the third welding worktable drives the fixture fixing table to rotate, causing the workpiece to be welded on the fixture fixing table to rotate relative to the third welding robot. This allows the welding angle to be automatically adjusted according to the welding program, ensuring normal welding of all welds within this welding station. Furthermore, in the third chassis assembly welding station, the third welding robot can easily act as a repair welding robot to repair critical areas that were not welded in previous processes due to limited welding angles.
[0027] In summary, the frame welding production line of this embodiment can realize the production of the frame by replanning the process flow of frame production and integrating each process into five workstations on the production line, which simplifies the production process and effectively shortens the production line length. Attached Figure Description
[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0029] Figure 1 This is a schematic diagram of the structure of the vehicle frame welding production line provided in an embodiment of the present utility model;
[0030] Figure 2 A schematic diagram of the production process at each station in the vehicle frame welding production line provided for this embodiment of the utility model;
[0031] Figure 3 A schematic diagram of the structure of the first component welding station in the vehicle frame welding production line provided in this embodiment of the utility model;
[0032] Figure 4 A schematic diagram of the structure of the second component welding station in the vehicle frame welding production line provided in this embodiment of the utility model;
[0033] Figure 5 A schematic diagram of the frame assembly welding station in the frame welding production line provided in this embodiment of the utility model.
[0034] Figure label:
[0035] 1-First component welding station;
[0036] 11-First welding robot; 12-First rotary drive device; 13-First rotary base; 14-First welding worktable; 15-First partition;
[0037] 2-Second component welding station;
[0038] 21-Second welding robot; 22-Second rotary drive device; 23-Second rotary base; 24-Second welding workbench; 25-Second partition;
[0039] 3- Chassis assembly welding station;
[0040] 31-Third welding robot; 32-Third rotary drive device; 33-Third rotary base; 34-Third welding workbench; 35-Rotating device; 36-Tooling fixing table; 37-Third partition;
[0041] 41-Rear seat assembly; 42-Head tube assembly; 43-Vehicle frame; 44-Chassis assembly. Detailed Implementation
[0042] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0043] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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 utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0044] In the description of this utility model, it should be noted that, unless otherwise explicitly 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0045] Example
[0046] Please see Figure 1 and combined Figure 3 , Figure 4 and Figure 5This embodiment provides a vehicle frame welding production line, which includes a first component welding station 1, a second component welding station 2, and three vehicle frame assembly welding stations 3 arranged sequentially. The first component welding station 1 includes a first welding robot 11 and a first welding worktable 14 for clamping workpieces to be welded. The first welding robot 11 is capable of welding the workpieces to be welded on the first welding worktable 14. The second component welding station 2 includes a second welding robot 21 and a second welding worktable 24 for clamping workpieces to be welded. There are two second welding robots 21. The second welding robot 21 can weld different parts of the workpiece to be welded on the second welding workbench 24 respectively; the frame assembly welding station 3 includes a third welding robot 31 and a third welding workbench 34. The third welding workbench 34 is equipped with a rotating device 35, which drives a fixture fixing table 36 for clamping the workpiece to be welded. The rotating device 35 can drive the fixture fixing table 36 to rotate; there are two third welding robots 31, and the two third welding robots 31 can weld different parts of the workpiece to be welded on the fixture fixing table 36 respectively.
[0047] In other words, the chassis welding production line includes five welding stations, namely: first component welding station 1, second component welding station 2, first chassis assembly welding station 3, second chassis assembly welding station 3, and third chassis assembly welding station 3.
[0048] Please see Figure 2 During the frame welding process, at the first component welding station 1, the first welding robot 11 welds the rear seat base frame and rear seat side frame on the first welding workbench 14 to form the rear seat assembly 41; at the second component welding station 2, two second welding robots 21 weld the head tube, front beam tube and head tube reinforcement frame on the second welding workbench 24 to form the head tube assembly 42; then at the first frame assembly welding station 3, two third welding robots 31 weld the rear seat assembly 41, head tube assembly 42, foot tube, bottom tube and other components on the tooling fixing platform 36 to form the complete vehicle frame 43; then at the second frame assembly welding station 3, two third welding robots 31 weld various parts on the complete vehicle frame 43 on the tooling fixing platform 36 to form the frame assembly 44; finally, at the third frame assembly welding station 3, two third welding robots 31 perform supplementary welding on the frame assembly 44 on the tooling fixing platform 36.
[0049] In the frame assembly welding station 3, the rotating device 35 on the third welding workbench 34 drives the tooling fixing table 36 to rotate, causing the workpiece to be welded on the tooling fixing table 36 to rotate relative to the third welding robot 31. This allows the welding angle to be automatically changed according to the welding program, ensuring normal welding of all welds in this welding station. Furthermore, in the third frame assembly welding station 3, the third welding robot 31 can easily act as a repair welding robot to repair critical parts that were not welded in previous processes due to limited welding angles.
[0050] In summary, the frame welding production line of this embodiment can realize the production of the frame by replanning the process flow of frame production and integrating each process into five workstations on the production line, which simplifies the production process and effectively shortens the production line length.
[0051] In addition, it should be noted that two second welding robots 21 are set in the second component welding station 2, and two third welding robots 31 are set in the frame assembly welding station 3. This ensures that the welding time is balanced even with a large number of weld passes in the station, improves welding efficiency, and makes the production line particularly suitable for welding production of electric tricycle frames.
[0052] Preferably, please refer to Figure 3 In this embodiment, the first component welding station 1 further includes a first rotary drive device 12 and a first rotary base 13. The first welding worktable 14 is disposed on the first rotary base 13, and there are two first welding worktables 14. The first rotary drive device 12 drives and connects to the first rotary base 13, and can drive the first rotary base 13 to rotate so that the two first welding worktables 14 are alternately located in the welding area of the first welding robot 11.
[0053] It should be noted that when the first rotary drive device 12 drives the first rotary base 13 to rotate, the two first welding worktables 14 can be alternately located in the welding area of the first welding robot 11. That is, when one of the two first welding worktables 14 is located in the welding area of the first welding robot 11, the other is located outside the welding area of the first welding robot 11.
[0054] Specifically, when one of the first welding worktables 14 rotates to the welding area of the first welding robot 11, this first welding worktable 14 becomes the welding work area, where the first welding robot 11 can weld the workpiece on the first welding worktable 14. The other first welding worktable 14 can clamp and fix the workpiece to be welded after installation, achieving a weldable state. In summary, the first rotary drive device 12 drives the first rotary base 13 to rotate and exchange workstations, enabling simultaneous welding and clamping. This cyclical operation improves welding efficiency.
[0055] For example, the first welding robot 11 can weld the rear seat base frame and rear seat side frame on the first welding worktable 14 to form the rear seat assembly 41. Specifically, an operator can be assigned to the first welding station. The two first welding worktables 14 can be alternately moved between the operator's position and the welding area of the first welding robot 11 via the first rotating base 13. This avoids the operator having to move back and forth between the two first welding worktables 14. Furthermore, when the first welding worktable 14 located in the welding area is being welded by the first welding robot 11, the first welding worktable 14 located at the operator's position is also being used by the operator to load and clamp the workpiece to be welded. This facilitates the first welding robot 11 to weld the rear seat base frame and rear seat side frame after the first welding worktable 14 rotates to the welding area, thereby obtaining the rear seat assembly 41.
[0056] Preferably, please refer to Figure 3 In this embodiment, the first component welding station 1 further includes a first partition 15 disposed on the first rotating base 13, which separates the two first welding workbenches 14. By separating the two first welding workbenches 14 by the first partition 15, the first welding robot 11 and the operator are isolated.
[0057] Preferably, please refer to Figure 4 In this embodiment, the second component welding station 2 further includes a second rotary drive device 22 and a second rotary base 23. The second welding worktable 24 is disposed on the second rotary base 23, and there are two second welding worktables 24. The second rotary drive device 22 drives and connects to the second rotary base 23, and can drive the second rotary base 23 to rotate so that the two second welding worktables 24 are alternately located in the welding area jointly formed by the two second welding robots 21. The two second welding robots 21 are spaced apart along the rotation direction of the second rotary base 23.
[0058] It should be noted that when the second rotary drive device 22 drives the second rotary base 23 to rotate, the two second welding worktables 24 can be alternately located in the welding area jointly formed by the two second welding robots 21. That is, when one of the two second welding worktables 24 is located in the welding area of the second welding robot 21, the other is located outside the welding area of the second welding robot 21.
[0059] Specifically, when one of the second welding worktables 24 rotates to the welding area of the two second welding robots 21, this second welding worktable 24 becomes the welding work area. The two second welding robots 21 can weld different parts of the workpiece on the second welding worktable 24 respectively. The other second welding worktable 24 can clamp and fix the workpiece to be welded after installation, achieving a weldable state. In summary, the second rotary drive device 22 drives the second rotary base 23 to rotate and exchange positions, enabling simultaneous welding and clamping. Circular operation improves welding efficiency. When the second welding worktable 24 rotates to the welding area, the two second welding robots 21 can weld the workpiece simultaneously or sequentially.
[0060] For example, the second welding robot 21 can weld the head tube, front beam tube, and head tube reinforcement frame on the second welding workbench 24 to form the head tube assembly 42. Specifically, an operator can be assigned to the second welding station. The two second welding workbench 24 can be alternately rotated between the operator and the welding area formed by the two second welding robots 21 via the second rotating base 23. This avoids the operator having to move back and forth between the two second welding workbench 24. Furthermore, when the second welding workbench 24 located in the welding area is being welded by the second welding robot 21, the second welding workbench 24 located at the operator's location is also being used by the operator to load and clamp the workpiece to be welded. This facilitates the subsequent welding of the head tube, front beam tube, and head tube reinforcement frame by the two second welding robots 21 after the second welding workbench 24 rotates to the welding area, thereby obtaining the head tube assembly 42.
[0061] Preferably, please refer to Figure 4 In this embodiment, the second component welding station 2 further includes a second partition 25 disposed on the second rotating base 23, which separates the two second welding worktables 24. By separating the two second welding worktables 24 by the second partition 25, the second welding robot 21 and the operator are isolated.
[0062] Preferably, please refer to Figure 5 In this embodiment, the frame assembly welding station 3 further includes a third rotary drive device 32 and a third rotary base 33. A third welding workbench 34 is disposed on the third rotary base 33, and there are two third welding workbench 34s. The third rotary drive device 32 drives and connects to the third rotary base 33, and can drive the third rotary base 33 to rotate so that the two third welding workbench 34 are alternately located in the welding area formed by the two third welding robots 31. The two third welding robots 31 are spaced apart along the rotation direction of the third rotary base 33.
[0063] It should be noted that when the third rotary drive device 32 drives the third rotary base 33 to rotate, the two third welding worktables 34 can be alternately located in the welding area jointly formed by the two third welding robots 31. That is, when one of the two third welding worktables 34 is located in the welding area of the third welding robot 31, the other is located outside the welding area of the third welding robot 31.
[0064] Specifically, when one of the third welding worktables 34 rotates to the welding area of the two third welding robots 31, this third welding worktable 34 becomes the welding work area. The two third welding robots 31 can weld different parts of the workpiece on the third welding worktable 34 respectively. The other third welding worktable 34 can clamp and fix the workpiece to be welded after installation, achieving a weldable state. In summary, the third rotary drive device 32 drives the third rotary base 33 to rotate and exchange work positions, enabling simultaneous welding and clamping. The cyclic operation can improve welding efficiency. When the third welding worktable 34 rotates to the welding area, the two third welding robots 31 can weld the workpiece to be welded simultaneously, or the two third welding robots 31 can weld the workpiece to be welded sequentially.
[0065] For example, in the first frame assembly welding station 3, the third welding robot 31 can weld the rear seat assembly 41, head tube assembly 42, foot tube, and bottom tube on the tooling fixing table 36 to form the complete vehicle frame 43. Specifically, an operator can be assigned to the third welding station. The two third welding worktables 34 can be alternately moved between the operator and the welding area formed by the two third welding robots 31 through the third rotating base 33. This avoids the operator moving back and forth between the two third welding worktables 34. When the third welding worktable 34 located in the welding area is being welded by the third welding robot 31, the operator can also load and clamp the workpieces to be welded at the third welding worktable 34 located at the operator's location. After that, the third welding worktable 34 can be rotated to the welding area, where the two third welding robots 31 will weld the rear seat assembly 41, head tube assembly 42, foot tube, and bottom tube respectively to obtain the complete vehicle frame 43.
[0066] In the second frame assembly welding station 3, the third welding robot 31 can weld various components onto the vehicle frame 43 on the tooling fixing platform 36 to form the frame assembly 44. These components include, for example, foot pedal fixing plates, center tube reinforcement boxes, off-center ladder components, and battery compartment fixing plates. In the third frame assembly welding station 3, two third welding robots 31 respectively perform supplementary welding on the frame assembly 44 on the tooling fixing platform 36 to form the frame.
[0067] In summary, in this embodiment, the production line has five production stations corresponding to the welding content in the chassis welding production process:
[0068] The first component welding station 1 is for welding the rear seat component 41. Here, a first welding robot 11 performs welding. It is equipped with a first rotating base 13, on which two first welding worktables 14 are set. The two first welding worktables 14 give the first rotating base 13 two workstations, an inner and an outer one. In the outer workstation, the first welding worktable 14 is not located in the welding area of the first welding robot 11. The workpiece to be welded can be installed and clamped and fixed to achieve a weldable state. In the inner workstation, the first welding worktable 14 is located in the welding area of the first welding robot 11. This first welding worktable 14 is the welding work area. The tooling on the external workstation is rotated to the inner workstation, and the first welding robot 11 performs welding of the rear seat component 41 in the inner workstation area.
[0069] The second component welding station 2 is for welding the head tube assembly 42. Here, two second welding robots 21 are used for welding, which can realize the welding of all welds within the standard assembly line time. It is equipped with a second rotating base 23. The external station is used to clamp the workpiece, and the internal station is used for welding. After welding is completed, the rotating exchange station can realize welding and clamping at the same time.
[0070] In the three frame assembly welding stations 3, the third welding robot 31 welds the three-wheeled frame. These three stations are the welding units for the three-wheeled frame assembly 44. Each station consists of two third welding robots, a third rotary drive device 32, and a third welding workbench 34. The three welding workbench is also divided into inner and outer stations. Both stations are equipped with tooling fixing surfaces 36. The outer station is where the workpiece to be welded is installed and clamped to achieve a weldable state. The inner station is the welding work area where the workpiece that has been clamped on the outer station is rotated to the inner station, and the third welding robot 31 performs the welding of the frame assembly 44 in the inner station area.
[0071] The third welding workbench 34 is equipped with a rotating device 35, which drives the tooling fixing table 36 to rotate. When welding in the internal work position, the tooling fixing table 36 can rotate 360°, thereby automatically changing the welding angle according to the welding program and realizing the welding work of all welds in the work unit.
[0072] Among them, the third frame assembly welding station 3 is a repair welding station. The mounting of the workpiece to be welded is completed by the personnel at the second frame assembly welding station 3 when they move the frame, without intervention, thus realizing the reduction of manpower at this station.
[0073] Preferably, please refer to Figure 5In this embodiment, the chassis assembly welding station 3 further includes a third partition 37 disposed on the third rotating base 33, which separates the two third welding workbenches 34. By separating the two third welding workbenches 34 by the third partition 37, the third welding robot 31 and the operator are isolated.
[0074] Preferably, in this embodiment, among the first component welding station 1, the second component welding station 2, and the three frame assembly welding stations 3, each adjacent station is provided with a conveying device capable of transferring the workpiece to be welded.
[0075] For example, the conveying device between the first component welding station 1 and the second component welding station 2, and between the second component welding station 2 and the first frame assembly welding station 3, is a conveyor belt device; the conveying device between the first frame assembly welding station 3 and the second frame assembly welding station 3, and between the second frame assembly welding station 3 and the third frame assembly welding station 3, is a cantilever track device.
[0076] This setup allows the conveyor system to transport the workpieces to be welded, replacing manual handling and enabling welding with fewer people, thus reducing the intensity of manual labor.
[0077] Preferably, in this embodiment, the first component welding station 1, the second component welding station 2, and the three frame assembly welding stations 3 are arranged in a linear sequence.
[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A vehicle frame welding production line, characterized in that, It includes the first component welding station (1), the second component welding station (2), and three frame assembly welding stations (3) arranged in sequence. The first component welding station (1) includes a first welding robot (11) and a first welding workbench (14) for clamping the workpiece to be welded. The first welding robot (11) is capable of welding the workpiece to be welded on the first welding workbench (14). The second component welding station (2) includes a second welding robot (21) and a second welding workbench (24) for clamping the workpiece to be welded. There are two second welding robots (21), and the two second welding robots (21) can weld different parts of the workpiece to be welded on the second welding workbench (24) respectively. The frame assembly welding station (3) includes a third welding robot (31) and a third welding workbench (34). The third welding workbench (34) is equipped with a rotating device (35). The rotating device (35) drives a tooling fixing table (36) for clamping the workpiece to be welded. The rotating device (35) can drive the tooling fixing table (36) to rotate. There are two third welding robots (31). The two third welding robots (31) can weld different parts of the workpiece to be welded on the tooling fixing table (36) respectively.
2. The vehicle frame welding production line according to claim 1, characterized in that, The first component welding station (1) further includes a first rotary drive device (12) and a first rotary base (13), and the first welding worktable (14) is disposed on the first rotary base (13), and there are two first welding worktables (14); The first rotary drive device (12) drives the first rotary base (13) to rotate so that the two first welding worktables (14) are alternately located in the welding area of the first welding robot (11).
3. The vehicle frame welding production line according to claim 2, characterized in that, The first component welding station (1) also includes a first partition (15) disposed on the first rotating base (13), the first partition (15) separating the two first welding workbenches (14).
4. The vehicle frame welding production line according to claim 1, characterized in that, The second component welding station (2) also includes a second rotary drive device (22) and a second rotary base (23), the second welding worktable (24) is disposed on the second rotary base (23), and there are two second welding worktables (24); The second rotary drive device (22) drives the connection to the second rotary base (23) and can drive the second rotary base (23) to rotate so that the two second welding worktables (24) are alternately located in the welding area formed by the two second welding robots (21), wherein the two second welding robots (21) are spaced apart along the rotation direction of the second rotary base (23).
5. The vehicle frame welding production line according to claim 4, characterized in that, The second component welding station (2) also includes a second partition (25) disposed on the second rotating base (23), the second partition (25) separating the two second welding workbenches (24).
6. The vehicle frame welding production line according to claim 1, characterized in that, The frame assembly welding station (3) also includes a third rotary drive device (32) and a third rotary base (33). The third welding workbench (34) is disposed on the third rotary base (33), and there are two third welding workbench (34). The third rotary drive device (32) drives the third rotary base (33) to rotate, so that the two third welding worktables (34) are alternately located in the welding area formed by the two third welding robots (31), wherein the two third welding robots (31) are spaced apart along the rotation direction of the third rotary base (33).
7. The vehicle frame welding production line according to claim 6, characterized in that, The chassis assembly welding station (3) also includes a third partition (37) disposed on the third rotating base (33), the third partition (37) separating the two third welding workbenches (34).
8. The vehicle frame welding production line according to any one of claims 1-7, characterized in that, Among the first component welding station (1), the second component welding station (2), and the three frame assembly welding stations (3), each adjacent station is equipped with a conveying device capable of transferring the workpiece to be welded.
9. The vehicle frame welding production line according to claim 8, characterized in that, The conveying device between the first component welding station (1) and the second component welding station (2), and between the second component welding station (2) and the first frame assembly welding station (3), is a conveyor belt device; The conveying device between the first frame assembly welding station (3) and the second frame assembly welding station (3), and between the second frame assembly welding station (3) and the third frame assembly welding station (3), is a cantilevered track device.
10. The vehicle frame welding production line according to any one of claims 1-7, characterized in that, The first component welding station (1), the second component welding station (2), and the three frame assembly welding stations (3) are arranged in a linear sequence.