An electric vehicle welding production line

Abstract

The application discloses a kind of electric vehicle welding production line, it is related to electric vehicle production manufacturing technical field, comprising: control system and sequentially link's feeding module, initial welding module, repair welding module and discharging module, feeding module can be under the control of control system the partial component of frame is transported to initial welding module, initial welding module can be under the control of control system the partial component of frame is assembled and welded and forms semi-finished product, repair welding module can be under the control of control system the semi-finished product on initial welding module is transferred to repair welding module and carries out repair welding, repair welding module can also under the control of control system the finished product frame on repair welding module is transferred to discharging module, discharging module can be under the control of control system output finished product frame.The electric vehicle welding production line can reduce labor cost, reduce manual labor, the quality of product is higher and safety is better.

Description

Technical Field

[0001] This invention relates to the field of electric vehicle manufacturing technology, and in particular to an electric vehicle welding production line. Background Technology

[0002] Currently, electric vehicle welding is typically carried out manually, requiring 6-7 people for the entire process. This not only results in high labor costs and a heavy workload, but also leads to inconsistent product quality due to the skill level of the workers. Furthermore, it poses significant safety risks to the workers. Therefore, there is an urgent need for an electric vehicle welding production line that can reduce labor costs and workload, while also providing higher product quality and safety. Summary of the Invention

[0003] The purpose of this invention is to provide an electric vehicle welding production line to solve the problems existing in the prior art, reduce labor costs and workload, and improve product quality and safety.

[0004] To achieve the above objectives, the present invention provides the following solution:

[0005] This invention provides an electric vehicle welding production line, comprising: a control system and a feeding module, a preliminary welding module, a repair welding module, and an output module connected in sequence. The control system is signal-connected to the feeding module, the preliminary welding module, the repair welding module, and the output module. The feeding module, under the control of the control system, can transport the components of the vehicle frame to the preliminary welding module. The preliminary welding module, under the control of the control system, can assemble and weld some components of the vehicle frame to form a semi-finished product. The repair welding module, under the control of the control system, can transfer the semi-finished product from the preliminary welding module to the repair welding module for repair welding. The repair welding module, under the control of the control system, can also transfer the finished vehicle frame from the repair welding module to the output module. The output module, under the control of the control system, can output the finished vehicle frame.

[0006] In some embodiments, the feeding module includes an automatic feeding rack and a clamping machine. The automatic feeding rack includes a pre-storage area, an automatic arranging machine, and a picking area connected in sequence. The pre-storage area is used to replenish the components of the electric vehicle frame. The picking area has multiple picking points. The automatic arranging machine can transfer the various components of the electric vehicle from the pre-storage area to the respective picking points in the picking area under the control of the control system. The clamping machine is located on one side of the automatic feeding rack. Under the control of the control system, the clamping machine can transfer the components at the picking points to the initial welding module.

[0007] In some embodiments, the initial welding module includes an initial welding positioner and an initial welding robot. The initial welding positioner is connected to the feeding module, and the initial welding robot is disposed on one side of the initial welding positioner. The initial welding positioner has a first free end, which can rotate around a vertical axis under the control of the control system to reach a first position and a second position. The first position is close to the feeding module, and the second position is close to the initial welding robot. An initial welding fixture is disposed on the first free end. When the first free end rotates to the first position, the clamping machine can install electric vehicle parts on the initial welding fixture under the control of the control system. When the first free end rotates to the second position, the initial welding robot can weld the parts on the initial welding fixture to form a semi-finished product.

[0008] In some embodiments, there are two automatic feeding racks and two clamping machines, with the two clamping machines respectively located on one side of each of the two automatic feeding racks. The initial welding positioner has two first free ends, which are arranged opposite to each other. The initial welding fixture is provided on each of the two first free ends, and both of the first free ends can be rotated to the first position or the second position.

[0009] In some embodiments, the initial welding positioner includes a base, a turntable, a servo motor, a reducer, and a positioning frame. The turntable is rotatably connected to the upper side of the base around a vertical axis. The servo motor and the reducer are both fixedly connected to the base. The output end of the servo motor is drively connected to the input end of the reducer, and the output end of the reducer is drively connected to the turntable. The servo motor can drive the turntable to rotate. The positioning frame is fixedly connected to the upper side of the turntable, and the initial welding fixture is fixedly connected to both ends of the positioning frame.

[0010] In some embodiments, the welding repair module includes a transport robot, a welding repair positioner, and a welding repair robot. The transport robot is disposed on one side of the initial welding module, the welding repair positioner is disposed on one side of the transport robot, and the welding repair robot is disposed on one side of the welding repair positioner. The welding repair positioner has a second free end, which is rotatable around a horizontal axis. A welding repair fixture is fixedly disposed on the second free end. The transport robot can move the semi-finished product on the initial welding module to the welding repair fixture. The welding repair positioner can drive the welding repair fixture to rotate around the horizontal axis to reverse the semi-finished product. The welding repair robot can perform welding repair on the reversed semi-finished product.

[0011] In some embodiments, the unloading module includes an automated conveyor line and a vision inspection system. One end of the automated conveyor line is located on one side of the handling robot, which can transport the finished frame with the welder attached to it to the automated conveyor line. The vision inspection system is located on one side of the automated conveyor line and can detect the position of the holes in the finished frame.

[0012] In some embodiments, four initial welding robots are provided, arranged sequentially around the second position, and the four initial welding robots can jointly weld the parts on one initial welding fixture; two repair welding robots and two repair welding positioners are provided, with the two repair welding positioners respectively arranged on both sides of the transport robot, and the two repair welding robots respectively arranged on one side of each of the two repair welding positioners, and the two repair welding robots can respectively repair welding the semi-finished products on the two repair welding positioners.

[0013] In some embodiments, the control system includes a welding control module, a fault detection module, and a system monitoring module. The welding control module can control the operation of the feeding module, the initial welding module, the repair welding module, and the unloading module, respectively. The system monitoring module can monitor the operating status of the feeding module, the initial welding module, the repair welding module, and the unloading module. The fault detection module can determine the fault location and fault condition when the feeding module, the initial welding module, the repair welding module, and the unloading module malfunction based on the detection results of the system monitoring module.

[0014] In some embodiments, a dust removal system is also included, which has multiple air intake ports and exhaust ports. The air intake ports are provided above both the initial welding module and the repair welding module. The dust removal system is signal-connected to the control system. The dust removal system can draw in and purify the fumes generated by the initial welding module and the repair welding module during the welding process through the air intake ports, and the exhaust ports can discharge the purified gas.

[0015] The present invention achieves the following technical effects compared to the prior art:

[0016] The welding production line provided by this invention, under the automatic control of a control system, transports electric vehicle components to a preliminary welding module via a feeding module. The preliminary welding module completes the initial welding of the frame, forming a semi-finished product. After the preliminary welding, the various components of the semi-finished frame are assembled, but some welds are not yet complete. A repair welding module repairs these remaining welds, forming the finished frame. Finally, the finished frame is manually transferred to the finished product area for storage. By controlling the welding production line to produce electric vehicle frames, the control system replaces manual welding, reducing labor costs, decreasing worker workload, improving product quality, and reducing safety hazards. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a plan view of the electric vehicle welding production line in some embodiments of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of some initial welding modules and some repair welding modules in some embodiments of the present invention;

[0020] Figure 3 This is a three-dimensional structural diagram of the initial welding positioner in some embodiments of the present invention;

[0021] In the diagram: 1. Automatic feeding rack; 2. Clamping machine; 3. Initial welding positioner; 31. Base; 32. Turntable; 33. Positioner; 4. Initial welding fixture; 5. Initial welding robot; 6. Handling robot; 7. Repair welding positioner; 8. Repair welding robot; 9. Automatic conveyor line; 10. Vision inspection system; 11. Dust removal system; 12. Finished product area; 13. Safety grille; 100. Feeding module; 200. Initial welding module; 300. Repair welding module; 400. Discharge module. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] The purpose of this invention is to provide an electric vehicle welding production line to solve the problems existing in the prior art, reduce labor costs and workload, and improve product quality and safety.

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] This invention provides an electric vehicle welding production line, such as... Figure 1-3 As shown, the system includes a control system and a feeding module 100, a preliminary welding module 200, a repair welding module 300, and an output module 400 connected in sequence. The control system is connected to the feeding module 100, the preliminary welding module 200, the repair welding module 300, and the output module 400 by signals. Under the control of the control system, the feeding module 100 can transport some parts of the frame to the preliminary welding module 200. Under the control of the control system, the preliminary welding module 200 can assemble and weld some parts of the frame to form a semi-finished product. Under the control of the control system, the repair welding module 300 can transfer the semi-finished product on the preliminary welding module 200 to the repair welding module 300 for repair welding. Under the control of the control system, the repair welding module 300 can also transfer the finished frame on the repair welding module 300 to the output module 400. Under the control of the control system, the output module 400 can output the finished frame.

[0026] The welding production line provided by this invention, under the automatic control of the control system, has a feeding module 100 transporting electric vehicle components to a preliminary welding module 200. The preliminary welding module 200 completes the initial welding of the frame, forming a semi-finished product. After the preliminary welding, the various components of the semi-finished frame are assembled, but some welds are not fully completed. The remaining welds are then repaired by a repair welding module 300, forming a finished frame. Finally, the finished frame is manually transferred from the unloading module 400 to the finished product area 12 for storage. By controlling the welding production line to produce electric vehicle frames through the control system, the entire welding operation is replaced by manual labor, reducing labor costs, decreasing worker workload, improving product quality, and reducing safety hazards. In actual operation, the feeding module 100 can transport all or part of the frame components. While the feeding module 100 is transporting some frame components, other frame components can be transferred to the welding module via other conveying devices.

[0027] In this first embodiment, the feeding module 100 includes an automatic feeding rack 1 and a clamping machine 2. The automatic feeding rack 1 includes a pre-storage area, an automatic arranging machine, and a picking area connected in sequence. The pre-storage area is used to replenish the components of the electric vehicle frame. The picking area has multiple picking points. Under the control of the control system, the automatic arranging machine can transfer the various components of the electric vehicle from the pre-storage area to the respective picking points in the picking area. The clamping machine 2 is located on one side of the automatic feeding rack 1. Under the control of the control system, the clamping machine 2 can transfer the components at the picking points to the initial welding module 200. During feeding, the electric vehicle components are manually replenished in the pre-storage area. Then, under the control of the control system, the automatic feeding rack 1 automatically transports the components and moves them to the initial welding module 200 via the clamping machine 2. By setting up the clamping machine 2 and the automatic feeding rack 1, the feeding process is simplified.

[0028] In this embodiment, the initial welding module 200 includes an initial welding positioner 3 and an initial welding robot 5. The initial welding positioner 3 is connected to the feeding module 100. The initial welding robot 5 is located on one side of the initial welding positioner 3. The initial welding positioner 3 has a first free end. The first free end can rotate around a vertical axis under the control of the control system to reach a first position and a second position. The first position is close to the feeding module 100, and the second position is close to the initial welding robot 5. An initial welding fixture 4 is provided on the first free end. When the first free end rotates to the first position, the clamping machine 2 can install the electric vehicle parts on the initial welding fixture 4 under the control of the control system. When the first free end rotates to the second position, the initial welding robot 5 can weld the parts on the initial welding fixture 4 to form a semi-finished product. During the initial welding, the first free end rotates to the first position, and the clamping machine 2 installs the parts from the feeding module 100 onto the initial welding fixture 4 (the initial welding fixture 4 has multiple positioning structures corresponding to each part, which can help determine the installation position of each part). Then, the initial welding positioner 3 rotates, and the first free end rotates to the second position, bringing the initial welding fixture 4 close to the initial welding robot 5. The initial welding robot 5 then welds the parts to form a semi-finished product. Both the initial welding positioner 3 and the initial welding robot 5 are connected to the control system signal.

[0029] In this embodiment, there are two automatic feeding racks 1 and two clamping machines 2. The two clamping machines 2 are respectively arranged on one side of the two automatic feeding racks 1. The initial welding positioner 3 has two first free ends, which are arranged opposite each other. Each of the two first free ends is provided with an initial welding fixture 4. Both first free ends can rotate to a first position or a second position. During the initial welding process, the two clamping machines 2 can respectively clamp different or the same parts from the two automatic feeding racks 1 and transfer the parts together to an initial welding fixture 4 located in the first position. Then the initial welding fixture 4 rotates to the second position. At this time, the other initial welding fixture 4 located on the other free end rotates to the first position. The two clamping machines can transfer the next frame parts to be welded to the initial welding fixture 4 that does not have any parts installed.

[0030] In this first embodiment, the initial welding positioner 3 includes a base 31, a turntable 32, a servo motor, a reducer, and a positioning frame 33. The turntable 32 is rotatably connected to the upper side of the base 31 around a vertical axis. The servo motor and the reducer are both fixedly connected to the base 31. The output end of the servo motor is drively connected to the input end of the reducer, and the output end of the reducer is drively connected to the turntable 32. The servo motor can drive the turntable 32 to rotate. The positioning frame 33 is fixedly connected to the upper side of the turntable 32. Initial welding fixtures are fixedly connected to both ends of the positioning frame 33, and two free ends are formed at each end of the positioning frame 33. The servo motor can achieve precise position, speed, and acceleration control. By setting the servo motor and reducer to drive the rotation of the turntable 32, the positioning accuracy of the turntable 32 during rotation is improved, ensuring welding quality. A safety grille 13 is also provided on one side of the initial welding positioner 3. The safety grille 13 is connected to the initial welding positioner 3 by signal. The distance from the safety grille 13 to the rotation center of the turntable 32 is not less than the maximum rotation radius of the initial welding positioner 3. The safety grille 13 has an infrared emitting device and an infrared receiving device. When the infrared receiving device receives infrared rays emitted by the infrared emitting device and the intensity reaches the preset value, the initial welding positioner 3 continues to operate. When the infrared receiving device receives infrared rays emitted by the infrared emitting device and the intensity decreases, it indicates that an object or person is blocking the infrared rays, that is, entering the range that is easily hit by the rotation of the initial welding positioner 3. To ensure safety, the initial welding positioner 3 is turned off.

[0031] In this first embodiment, the welding repair module 300 includes a transport robot 6, a welding repair positioner 7, and a welding repair robot 8. The transport robot 6 is located on one side of the initial welding module 200, the welding repair positioner 7 is located on one side of the transport robot 6, and the welding repair robot 8 is located on one side of the welding repair positioner 7. The welding repair positioner 7 has a second free end that can rotate around a horizontal axis. A welding repair fixture is fixedly mounted on the second free end. The transport robot 6 can move the semi-finished product on the initial welding module 200 to the welding repair fixture. The welding repair positioner 7 can drive the welding repair fixture to rotate around the horizontal axis to reverse the semi-finished product. The welding repair robot 8 can perform welding repair on the reversed semi-finished product. After the initial welding is completed, the transport robot 6 transfers the semi-finished product on the initial welding module 200 to the welding repair fixture. The second free end of the welding repair positioner 7 rotates, reversing the semi-finished product on the welding repair fixture, and the welding repair robot 8 performs welding repair on the incomplete welds. The transport robot 6 reduces labor costs and the workload of workers. Both the handling robot 6 and the welding robot 8 are connected to the control system signal.

[0032] In this first embodiment, the unloading module 400 includes an automatic conveyor line 9 and a vision inspection system 10. One end of the automatic conveyor line 9 is located on one side of the handling robot 6. The handling robot 6 can transport the finished vehicle frame, which has been welded by the welder, onto the automatic conveyor line 9. The vision inspection system 10 is located on one side of the automatic conveyor line 9 and can detect the positional accuracy of the holes in the finished vehicle frame. The automatic conveyor line 9 can reduce the workload of workers and increase the unloading speed. The vision inspection system 10 can inspect the finished vehicle frames. Qualified finished vehicle frames are transported to the finished product area 12, and unqualified vehicle frames are transported to the defective product area, thereby ensuring the quality of the finished vehicle frames. Both the automatic conveyor line 9 and the vision inspection system 10 are connected to the control system signal.

[0033] To improve welding efficiency, in this first embodiment, four initial welding robots 5 are provided, arranged sequentially around the second position. The four initial welding robots 5 can work together to weld the parts on an initial welding fixture 4. Two welding robots 8 and two welding positioners 7 are provided. The two welding positioners 7 are respectively located on both sides of the transport robot 6, and the two welding robots 8 are respectively located on one side of each of the two welding positioners 7. The two welding robots 8 can respectively weld the semi-finished products on the two welding positioners 7.

[0034] In this first embodiment, the control system includes a welding control module, a fault detection module, and a system monitoring module. The welding control module can control the operation of the feeding module 100, the initial welding module 200, the repair welding module 300, and the unloading module 400, respectively. The system monitoring module can monitor the operating status of the feeding module 100, the initial welding module 200, the repair welding module 300, and the unloading module 400. The fault detection module can determine the location and condition of any faults in the feeding module 100, the initial welding module 200, the repair welding module 300, and the unloading module 400 based on the detection results from the system monitoring module. By setting up the system monitoring module and the fault detection module, operators can quickly locate and promptly handle any faults that occur.

[0035] Specifically, the control system also includes a touchscreen, preferably a Siemens touchscreen display. Operators can control the operation of the feeding module 100, the initial welding module 200, the repair welding module 300, and the unloading module 400 via the touchscreen. For example, this includes controlling the rotation of the initial welding positioner 3 and the transport speed of the handling robot 6. The touchscreen can also display the system's operating status, such as which welding step is currently in progress, which module is currently working, and fault information, such as the fault location and cause. In addition, the control system includes an access control module. The welding control module has pre-entered equipment control parameters, and it controls the welding process according to these parameters. The access control module can also be operated via the touchscreen; operators can unlock access to adjust the control parameters by entering a secondary password on the touchscreen.

[0036] In this first embodiment, the welding production line provided by the present invention further includes a dust removal system 11. The dust removal system 11 has multiple air extraction ports and exhaust ports. Air extraction ports are provided above both the initial welding module 200 and the repair welding module 300. The dust removal system 11 is connected to the control system. The dust removal system 11 can draw in and purify the fumes generated by the initial welding module 200 and the repair welding module 300 during the welding process through the air extraction ports, and can discharge the purified gas through the exhaust ports. The electric vehicle welding production line also includes a protective structure. The initial welding module 200 and the repair welding module 300 are both housed within the protective structure. The dust removal system 11 is located on top of the protective structure, with the air extraction ports facing inwards and the exhaust ports facing outwards.

[0037] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. An electric vehicle welding production line, characterized in that: include: The system comprises a control system and sequentially connected feeding module, initial welding module, repair welding module, and output module. The control system is signal-connected to the feeding module, initial welding module, repair welding module, and output module. Under the control of the control system, the feeding module can transport the frame components to the initial welding module. Under the control of the control system, the initial welding module can assemble and weld some of the frame components to form a semi-finished product. Under the control of the control system, the repair welding module can transfer the semi-finished product from the initial welding module to the repair welding module for repair welding. Under the control of the control system, the repair welding module can also transfer the finished frame from the repair welding module to the output module. Under the control of the control system, the output module can output the finished frame.

2. The electric vehicle welding production line according to claim 1, characterized in that: The feeding module includes an automatic feeding rack and a clamping machine. The automatic feeding rack includes a pre-storage area, an automatic arranging machine, and a picking area connected in sequence. The pre-storage area is used to replenish the components of the electric vehicle frame. The picking area has multiple picking points. Under the control of the control system, the automatic arranging machine can transfer the various components of the electric vehicle from the pre-storage area to the respective picking points in the picking area. The clamping machine is located on one side of the automatic feeding rack. Under the control of the control system, the clamping machine can transfer the components at the picking points to the initial welding module.

3. The electric vehicle welding production line according to claim 2, characterized in that: The initial welding module includes an initial welding positioner and an initial welding robot. The initial welding positioner is connected to the feeding module, and the initial welding robot is located on one side of the initial welding positioner. The initial welding positioner has a first free end, which can rotate around a vertical axis under the control of the control system to reach a first position and a second position. The first position is close to the feeding module, and the second position is close to the initial welding robot. An initial welding fixture is provided on the first free end. When the first free end rotates to the first position, the clamping machine can install electric vehicle parts on the initial welding fixture under the control of the control system. When the first free end rotates to the second position, the initial welding robot can weld the parts on the initial welding fixture to form a semi-finished product.

4. The electric vehicle welding production line according to claim 3, characterized in that: There are two automatic feeding racks and two clamping machines. The two clamping machines are respectively set on one side of the two automatic feeding racks. The initial welding positioner has two first free ends, which are arranged opposite to each other. The initial welding fixture is set on each of the two first free ends. Both of the two first free ends can be rotated to the first position or the second position.

5. The electric vehicle welding production line according to claim 3, characterized in that: The initial welding positioner includes a base, a turntable, a servo motor, a reducer, and a positioner frame. The turntable is rotatably connected to the upper side of the base around a vertical axis. The servo motor and the reducer are both fixedly connected to the base. The output end of the servo motor is driven to the input end of the reducer, and the output end of the reducer is driven to the turntable. The servo motor can drive the turntable to rotate. The positioner frame is fixedly connected to the upper side of the turntable, and the initial welding fixture is fixedly connected to both ends of the positioner frame.

6. The electric vehicle welding production line according to claim 3, characterized in that: The repair welding module includes a transport robot, a repair welding positioner, and a repair welding robot. The transport robot is located on one side of the initial welding module, the repair welding positioner is located on one side of the transport robot, and the repair welding robot is located on one side of the repair welding positioner. The repair welding positioner has a second free end, which can rotate around a horizontal axis. A repair welding fixture is fixedly installed on the second free end. The transport robot can move the semi-finished product on the initial welding module to the repair welding fixture. The repair welding positioner can drive the repair welding fixture to rotate around the horizontal axis to reverse the semi-finished product. The repair welding robot can perform repair welding on the reversed semi-finished product.

7. The electric vehicle welding production line according to claim 6, characterized in that: The unloading module includes an automatic conveyor line and a vision inspection system. One end of the automatic conveyor line is located on one side of the handling robot. The handling robot can transport the finished vehicle frame with the welding tool attached to it to the automatic conveyor line. The vision inspection system is located on one side of the automatic conveyor line and can detect the position of the holes in the finished vehicle frame.

8. The electric vehicle welding production line according to claim 6, characterized in that: Four initial welding robots are provided, arranged sequentially around the second position. The four initial welding robots can work together to weld the parts on one initial welding fixture. Two repair welding robots and two repair welding positioners are provided. The two repair welding positioners are respectively located on both sides of the transport robot, and the two repair welding robots are respectively located on one side of each of the two repair welding positioners. The two repair welding robots can respectively repair weld the semi-finished products on the two repair welding positioners.

9. The electric vehicle welding production line according to claim 1, characterized in that: The control system includes a welding control module, a fault detection module, and a system monitoring module. The welding control module can control the operation of the feeding module, the initial welding module, the repair welding module, and the unloading module, respectively. The system monitoring module can monitor the operating status of the feeding module, the initial welding module, the repair welding module, and the unloading module. The fault detection module can determine the fault location and fault condition when the feeding module, the initial welding module, the repair welding module, and the unloading module malfunction based on the detection results of the system monitoring module.

10. The electric vehicle welding production line according to claim 1, characterized in that: It also includes a dust removal system, which has multiple air intake ports and exhaust ports. The air intake ports are provided above both the initial welding module and the repair welding module. The dust removal system is signal-connected to the control system. The dust removal system can draw in and purify the fumes generated by the initial welding module and the repair welding module during the welding process through the air intake ports, and the exhaust ports can discharge the purified gas.

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