Automatic welding production system for battery trays

Abstract

The invention discloses an automatic welding production system for a battery tray. The automatic welding production system comprises a bottom plate friction stir welding station, a bottom plate assembly CNC station, a bottom plate assembly cleaning station, an assembly preassembling CMT welding station, an assembly friction stir welding station, an assembly CMT full welding station and an assembly CNC machining station which are sequentially arranged. By arranging the bottom plate stirring friction welding station, the bottom plate assembly CNC station, the bottom plate assembly cleaning station, the assembly pre-assembling CMT welding station, the assembly stirring friction welding station, the assembly CMT full welding station and the assembly CNC machining station, continuous and efficient machining from bottom plate spare parts to the battery tray assembly is achieved, the production efficiency is improved, the requirement for large-scale production is met, and the production cost is reduced. Manual participation is reduced, and the problems of inaccurate positioning, uneven welding quality and the like caused by human factors are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery tray production, and in particular to an automated welding production system for a battery tray. Background Art

[0002] In the production process of battery trays, welding technology is one of the key links, which directly affects the performance and cost of battery trays. Traditionally, battery trays are mostly produced by manual welding, which has many limitations. First, manual welding is inefficient and difficult to meet the needs of large-scale production. Secondly, the quality of manual welding is greatly affected by human factors. The technical level, operating habits and environmental factors of the welders may affect the welding quality, resulting in uneven weld quality, making it difficult to ensure the consistency and stability of welding, which in turn affects the overall performance of the battery tray.

[0003] In addition, the processing of battery trays also involves processes such as punching and tapping. During the production process, it is required to place the battery tray to be processed accurately in the predetermined position to ensure that the relative position of the tool and the workpiece during the processing is accurate. However, this step currently also relies on operators to manually carry and place, which is not only inefficient but also labor-intensive. Battery trays are usually large and heavy, and operators need to spend a lot of time and energy to carry and position them, which not only increases production costs, but may also cause inaccurate positioning due to human factors, thereby affecting processing quality and efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide an automated welding production system for a battery tray to solve one or more technical problems existing in the above-mentioned background technology.

[0005] To achieve this object, the present invention adopts the following technical solutions: An automated welding production system for a battery tray, comprising a bottom plate friction stir welding station, a bottom plate assembly CNC station, a bottom plate assembly cleaning station, an assembly pre-assembly CMT welding station, an assembly friction stir welding station, an assembly CMT full welding station and an assembly CNC processing station which are arranged in sequence; The bottom plate friction stir welding station is used to position each bottom plate component; to perform friction stir welding on the front and back sides of the bottom plate components in sequence according to a predetermined welding path, so that the bottom plate components are spliced ​​to form a bottom plate assembly; and to grind the weld formed on the bottom plate assembly; The bottom plate CNC station is used to perform milling and punching processing on the bottom plate assembly; The bottom plate cleaning station is used to perform high-pressure spraying and drying on the bottom plate components; The assembly pre-installed CMT welding station is used to position the bottom plate assembly and frame parts; and is used to perform CMT pre-welding on the bottom plate assembly and frame parts, so that the bottom plate assembly and frame parts are spliced ​​to form an assembly assembly; The assembly friction stir welding station is used to perform friction stir welding on the front and back sides of the preset welds on the assembly components in sequence; and is used to grind the welds formed on the assembly components; The assembly CMT welding station is used to perform CMT full welding on the assembly components; The assembly CNC processing station is used for punching and tapping assembly components.

[0006] Preferably, the bottom plate friction stir welding station comprises a plurality of bottom plate front FSW welding robots, a plurality of first welding platforms, a plurality of bottom plate back FSW welding robots, a first linear module and a first handling robot; the plurality of first welding platforms are arranged on both sides of the first linear module, and the first handling robot is arranged at the movable end of the first linear module; the hand of the first handling robot is provided with a first handling fixture, and the first welding platform is arranged in the grabbing range of the first handling robot; The first handling robot is used to grab the bottom plate assembly that has completed front welding from the first welding platform on one side of the first linear module and move it to the first welding platform on the other side, and flip the bottom plate assembly so that the back side of the bottom plate assembly faces upward; A first positioning assembly is provided on the first welding platform, and the first positioning assembly includes a plurality of first side pressure cylinders, a plurality of first upper and lower pressing cylinders, and a plurality of second upper and lower pressing cylinders. The plurality of first side pressure cylinders and the plurality of first upper and lower pressing cylinders are distributed on the front and rear sides of the first welding platform, and the plurality of second upper and lower pressing cylinders are distributed on the left and right sides of the first welding platform. A positioning bracket is provided at the telescopic end of the second upper and lower pressing cylinders, and an avoidance portion is provided on the positioning bracket. The first transport fixture includes a fixed frame and a plurality of clamping units, wherein the plurality of clamping units are distributed at the four corners of the fixed frame, a connecting plate is provided in the middle of the fixed frame, and the connecting plate is connected to the hand flange of the transport robot; the clamping unit includes a clamping column, a clamping cylinder and a clamping arm, one end of the clamping column is connected to the fixed frame, and the other end of the clamping column is provided with a first clamping block, the clamping cylinder is provided at one side of the clamping column, and the clamping arm is provided at the swinging end of the clamping cylinder, and a second clamping block is provided on the clamping arm, and when the clamping cylinder is actuated, the clamping arm is driven to swing, so that the second clamping block is close to or away from the first clamping block.

[0007] Preferably, the bottom plate friction stir welding station also includes a bottom plate weld grinding station, and the bottom plate weld grinding station includes a first grinding robot and a first grinding flip table, the first grinding flip table is arranged at the end of the first linear module, the first grinding flip table is located within the grasping range of the first handling robot, and the first grinding robot is arranged on one side of the first grinding flip table; The first handling robot is further used to grab and move the bottom plate assembly that has completed reverse welding to the first polishing and turning table; the first polishing robot is used to polish the front and back sides of the bottom plate assembly on the first polishing and turning table; the first polishing and turning table is used to position the bottom plate assembly and drive the bottom plate assembly to rotate so that the front or back side of the bottom plate assembly faces the polishing part of the first polishing robot; The first polishing and turning table is provided with a second positioning assembly, and the second positioning assembly includes a plurality of third upper and lower pressing cylinders, and the plurality of third upper and lower pressing cylinders are respectively located at the front and rear sides of the first polishing and turning table.

[0008] Preferably, the bottom plate CNC processing station includes multiple groups of first processing centers, second linear modules, and second handling robots. The first grinding and turning table is arranged front and rear of the head end of the second linear module. The second handling robot is arranged at the movable end of the second linear module. Multiple groups of the first processing centers are distributed on both sides of the second linear module. Multiple groups of the first processing centers are all arranged within the grasping range of the second handling robot. The hand of the second handling robot is provided with a second handling fixture. The second handling robot is used to grab and move the bottom plate assembly on the first grinding and turning table to the idle first processing center; and is used to grab and move the bottom plate assembly processed in the first processing center to the starting end of the bottom plate cleaning station; The first machining center is used to perform milling and punching processing on the bottom plate component.

[0009] Preferably, the assembly pre-assembly welding station includes a third linear module, a third handling robot, a plurality of CMT pre-welding robots, a plurality of first welding turning tables and a first transfer placement table. The starting end of the third linear module is connected to the end of the bottom plate cleaning station. The first transfer placement table is arranged at the end of the third linear module. The third handling robot is arranged at the movable end of the third linear module. The plurality of first welding turning tables are respectively arranged on both sides of the third linear module. The CMT pre-welding robot is arranged on one side of the first welding turning table. The hand of the third handling robot is provided with a third handling fixture. The first welding turning tables are all arranged within the grasping range of the third handling robot. The first welding turning table is used to position the bottom plate assembly and each assembly component and to drive the assembled assembly to rotate so that the front or back side of the assembly assembly faces the welding part of the CMT pre-welding robot; the third handling robot is used to grab and move the bottom plate assembly on the first grinding turning table to the first welding turning table; and is used to grab and move the pre-welded assembly to the first transfer placement table; A third positioning assembly is provided on the first welding turning table, and the first positioning assembly includes multiple second side pressure cylinders, multiple fourth upper and lower clamping cylinders and multiple fifth upper and lower clamping cylinders. The multiple second side pressure cylinders and the multiple fourth upper and lower clamping cylinders are distributed on the front and rear sides of the first welding turning table, and the multiple fifth upper and lower clamping cylinders are distributed on the left and right sides of the first welding turning table.

[0010] Preferably, the assembly friction stir welding station includes a plurality of assembly front FSW welding robots, a fourth linear module, a fourth handling robot, a plurality of second welding platforms and a second transfer placement table, the first transfer placement table is arranged in front and behind the starting end of the fourth linear module, a plurality of the second welding platforms are respectively arranged on both sides of the fourth linear module, the assembly front FSW welding robot is arranged on one side of the second welding platform, the fourth handling robot is arranged at the active end of the fourth linear module, the hand of the fourth handling robot is provided with a fourth handling fixture, the second welding platform is arranged in the grasping range of the fourth handling robot, and the second welding platform is provided with a fourth positioning component; The fourth handling robot is used to grab the assembly component from the first transfer placement table and move it to the second welding platform; and is used to move the assembly component that has completed front welding on the second welding platform to the second transfer placement table; The assembly friction stir welding station also includes an assembly front grinding station, which includes a fifth linear module, a fifth handling robot, a plurality of second grinding robots, a plurality of first grinding platforms and a third transfer placement table. The starting end of the fifth linear module is connected to the end of the fourth linear module front to back, the third transfer placement table is arranged at the end of the fifth linear module, the fifth handling robot is arranged at the active end of the fifth linear module, a plurality of the first grinding platforms are respectively arranged on both sides of the fifth linear module, the hand of the fifth handling robot is provided with a fifth handling fixture, and the first grinding platform is provided with a fifth positioning component; The fifth handling robot is used to grab and move the assembly components that have completed front welding to the first polishing platform; and is used to grab and move the assembly components that have completed polishing on the first polishing platform to the third transfer placement table.

[0011] Preferably, the assembly friction stir welding station further includes a plurality of assembly reverse FSW welding robots, a sixth linear module, a sixth handling robot and a plurality of third welding platforms, the third transfer placement table is arranged in front and behind the starting end of the sixth linear module, the plurality of third welding platforms are respectively arranged on both sides of the sixth linear module, the assembly reverse FSW welding robot is arranged on one side of the third welding platform, the sixth handling robot is arranged at the active end of the sixth linear module, the hand of the sixth handling robot is provided with a sixth handling fixture, the third welding platform is arranged in the grasping range of the sixth handling robot, and the third welding platform is provided with a sixth positioning component; The sixth handling robot is used to grab the assembly components from the third transfer placement table and move them to the third welding platform; The assembly friction stir welding station also includes an assembly reverse side grinding station, the assembly reverse side grinding station includes a third grinding robot and a second grinding flip table, the second grinding flip table is arranged at the end of the sixth linear module, the third grinding robot is arranged on one side of the second grinding flip table, and the second grinding flip table is provided with a seventh positioning component; The sixth handling robot is also used to move the assembly components that have completed reverse side welding on the third transfer placement table to the second grinding and turning table.

[0012] Preferably, the assembly CMT full welding station includes a plurality of second welding flip tables, a plurality of CMT full welding robots, a seventh handling robot and a seventh linear module. The second grinding flip table is arranged front and rear of the seventh linear module. The seventh handling robot is arranged at the movable end of the seventh linear module. A plurality of the second welding flip tables are respectively arranged on both sides of the seventh linear module. The CMT full welding robot is arranged on one side of the second welding flip table. An eighth positioning assembly is arranged on the second welding flip table. The hand of the seventh handling robot is provided with a seventh handling fixture. The seventh handling robot is used to grab and move the assembly components that have been polished on the second polishing turntable to the second welding flip table; the seventh handling robot is used to grab and move the assembly components that have completed CMT full welding on the second polishing turntable to the starting end of the CNC processing station.

[0013] Preferably, the assembly CNC processing station includes a weld inspection station, multiple groups of second processing centers, an eighth linear module, an eighth handling robot and a finished product display table. The weld inspection station is located at the end of the assembly friction stir welding station, the eighth linear module is located between the weld inspection station and the finished product display table, multiple groups of the second processing centers are located on both sides of the eighth linear module, the eighth handling robot is located at the active end of the eighth linear module, the second processing center is located within the active range of the eighth handling robot, and the hand of the eighth handling robot is provided with an eighth handling fixture.

[0014] Preferably, the weld inspection station includes a first roller conveyor, a plurality of second roller conveyors and a lifting belt conveyor, the first roller conveyor is arranged between the end of the assembly friction stir welding station and the starting end of the eighth linear module, the second roller conveyors are respectively arranged on both sides of the first roller conveyor, the conveying direction of the second roller conveyor is perpendicular to the conveying direction of the first roller conveyor, the lifting belt conveyor is arranged below the first roller conveyor, and the belt portion of the lifting belt conveyor is located between two of the roller shafts of the first roller conveyor spaced apart in front and behind.

[0015] The beneficial effects of the present invention are as follows: by setting a bottom plate friction stir welding station, a bottom plate component CNC station, a bottom plate component cleaning station, an assembly pre-installed CMT welding station, an assembly friction stir welding station, an assembly CMT full welding station and an assembly CNC processing station, continuous and efficient processing from bottom plate parts to battery tray assembly is achieved, production efficiency is improved, the needs of large-scale production are met, manual participation is reduced, and problems such as inaccurate positioning and uneven welding quality caused by human factors are avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings further illustrate the present invention, but the contents in the accompanying drawings do not constitute any limitation to the present invention.

[0017] Figure 1 is a schematic diagram of the overall arrangement of one embodiment of the present invention; Figure 2 It is a schematic diagram of the arrangement of a bottom plate friction stir welding station in one embodiment of the present invention; Figure 3 is a schematic structural diagram of a first positioning assembly in one embodiment of the present invention; Figure 4 is a schematic structural diagram of a first transport fixture in one embodiment of the present invention; Figure 5 It is a schematic diagram of the arrangement of the CNC stations of the base plate assembly of one embodiment of the present invention; Figure 6It is a schematic diagram of the layout of the assembly pre-installed CMT welding station of one embodiment of the present invention; Figure 7 It is a schematic diagram of the arrangement of the friction stir welding station of an assembly according to one embodiment of the present invention; Figure 8 It is a schematic diagram of the arrangement of the assembly reverse FSW welding robot and the assembly reverse grinding station in one embodiment of the present invention; Fig. 9 It is a schematic diagram of the layout of a CMT full welding station of an embodiment of the present invention; Fig.10 It is a schematic diagram of the layout of the assembly CNC processing station of one embodiment of the present invention.

[0018] Among them: bottom plate friction stir welding station 100, bottom plate component CNC station 200, bottom plate component cleaning station 300, assembly pre-installed CMT welding station 400, assembly friction stir welding station 500, assembly CMT full welding station 600, assembly CNC processing station 700, bottom plate weld grinding station 120, assembly front grinding station 520, assembly back FSW welding robot 530, assembly back grinding station 540, weld inspection station 720, bottom plate front FSW welding robot 111, first welding platform 112, bottom plate back FSW welding robot 113, first linear module 114, first handling robot 1 15. first handling fixture 140, first positioning assembly 130, first side pressure cylinder 131, first upper and lower clamping cylinder 132, second upper and lower clamping cylinder 133, positioning bracket 134, avoidance part 135, fixed frame 141, clamping column 142, clamping cylinder 143, clamping arm 144, connecting plate 145, first grinding robot 121, first grinding turning table 122, second positioning assembly 150, first machining center 211, second linear module 212, second handling robot 213, second handling fixture 214, third linear module 411, third handling robot 412, CMT pre-welding robot 413, first Welding turning table 414, first transfer table 415, third handling fixture 416, third positioning assembly 417, front FSW welding robot 511 of assembly, fourth linear module 512, fourth handling robot 513, second welding platform 514, second transfer table 515, fourth handling fixture 516, fourth positioning assembly 517, fifth linear module 521, fifth handling robot 522, second grinding robot 523, first grinding platform 524, third transfer table 525, fifth handling fixture 526, fifth positioning assembly 527, back FSW welding robot 531 of assembly, sixth linear module 532, The sixth handling robot 533, the third welding platform 534, the sixth handling fixture 535, the sixth positioning assembly 536, the third grinding robot 541, the second grinding turning table 542, the seventh positioning assembly 543, the second welding turning table 611, the CMT full welding robot 612, the seventh handling robot 613, the seventh linear module 614, the eighth positioning assembly 615, the seventh handling fixture 616, the second machining center 711, the eighth linear module 712, the eighth handling robot 713, the finished product display table 714, the eighth handling fixture 715, the first roller conveyor 721, the second roller conveyor 722, and the lifting belt conveyor 723. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0020] The present embodiment is an automated welding production system for a battery tray, see the attached Figure 1 , including a bottom plate friction stir welding station 100, a bottom plate assembly CNC station 200, a bottom plate assembly cleaning station 300, an assembly pre-assembly CMT welding station 400, an assembly friction stir welding station 500, an assembly CMT full welding station 600 and an assembly CNC processing station 700 which are arranged in sequence; The bottom plate friction stir welding station 100 is used to position each bottom plate component; to perform friction stir welding on the front and back sides of the bottom plate components in sequence according to a predetermined welding path, so that the bottom plate components are spliced ​​to form a bottom plate assembly; and to grind the weld formed on the bottom plate assembly; The bottom plate CNC station 200 is used for milling and punching the bottom plate components; The bottom plate cleaning station 300 is used for high pressure spraying and drying of the bottom plate components; The assembly pre-assembly CMT welding station 400 is used to position the bottom plate assembly and frame parts; and is used to perform CMT pre-welding on the bottom plate assembly and frame parts, so that the bottom plate assembly and frame parts are spliced ​​to form an assembly assembly; The assembly friction stir welding station 500 is used to perform friction stir welding on the front and back sides of the preset welds on the assembly components in sequence; and is used to grind the welds formed on the assembly components; Assembly CMT welding station 600 is used for CMT full welding of assembly components; The assembly CNC processing station 700 is used for punching and tapping assembly components.

[0021] By setting up a base plate friction stir welding station 100, a base plate component CNC station 200, a base plate component cleaning station 300, an assembly pre-installed CMT welding station 400, an assembly friction stir welding station 500, an assembly CMT full welding station 600 and an assembly CNC processing station 700, continuous and efficient processing from base plate parts to battery tray assembly is achieved, production efficiency is improved, the needs of large-scale production are met, manual participation is reduced, and problems such as inaccurate positioning and uneven welding quality caused by human factors are avoided.

[0022] Preferably, refer to the attached Figure 2 The bottom plate friction stir welding station 100 includes a plurality of bottom plate front FSW welding robots 111, a plurality of first welding platforms 112, a plurality of bottom plate back FSW welding robots 113, a first linear module 114 and a first handling robot 115; the plurality of first welding platforms 112 are arranged on both sides of the first linear module 114, and the first handling robot 115 is arranged at the movable end of the first linear module 114; the hand of the first handling robot 115 is provided with a first handling fixture 140, and the first welding platform 112 is arranged in the grasping range of the first handling robot 115; The first handling robot 115 is used to grab the bottom plate assembly with the front side welded from the first welding platform 112 on one side of the first linear module 114 and move it to the first welding platform 112 on the other side, and flip the bottom plate assembly so that the back side of the bottom plate assembly faces upward.

[0023] By setting up the first welding platform 112, the positioning of the bottom plate parts is achieved, ensuring that the bottom plate parts will not move during the welding process, thereby ensuring the quality of welding; by setting up the bottom plate front FSW welding robot 111 and the bottom plate back FSW welding robot 113, stir friction welding is performed on the front and back sides of the bottom plate parts respectively, so that the bottom plate parts are welded to form a bottom plate assembly; the first welding table 112, the bottom plate front FSW welding robot 111 and the bottom plate back FSW welding robot 113 are multiple groups, which can achieve simultaneous and continuous processing of multiple battery trays, thereby improving processing efficiency; by setting the first handling robot 115 at the active end of the first linear module 114, the linear motion provided by the first linear module 114 is utilized to increase the handling or positioning range of the battery tray bottom plate assembly.

[0024] The first welding platform 112 is provided with a first positioning assembly 130. Figure 3 The first positioning assembly 130 includes multiple first side pressure cylinders 131, multiple first upper and lower clamping cylinders 132 and multiple second upper and lower clamping cylinders 133. The multiple first side pressure cylinders 131 and the multiple first upper and lower clamping cylinders 132 are distributed on the front and rear sides of the first welding platform 112, and the multiple second upper and lower clamping cylinders 133 are distributed on the left and right sides of the first welding platform 112. A positioning bracket 134 is provided at the telescopic end of the second upper and lower clamping cylinders 133, and an avoidance portion 135 is provided on the positioning bracket 134.

[0025] The first side pressure cylinder 131 is arranged at the front and rear sides of the first welding platform 112 to press the bottom plate parts from both sides to reduce the gap between the bottom plate parts; the first upper and lower pressing cylinders 132 and the second upper and lower pressing cylinders 133 are arranged to make the bottom plate parts close to the first welding platform 112 to achieve the fixation and positioning of the bottom plate parts. The telescopic end of the second upper and lower pressing cylinder 133 is provided with a positioning bracket 134, and the positioning bracket 134 is provided with an avoidance portion 135 to avoid interference with the path of the welding robot, thereby increasing the length of the weld between the bottom plate parts and ensuring the welding quality.

[0026] The first transport fixture 140 includes a fixed frame 141 and a plurality of clamping units. Figure 4, multiple clamping units are distributed at the four corners of the fixed frame 141, a connecting plate 145 is provided in the middle of the fixed frame 141, and the connecting plate 145 is connected to the hand flange of the handling robot; the clamping unit includes a clamping column 142, a clamping cylinder 143 and a clamping arm 144, one end of the clamping column 142 is connected to the fixed frame 141, and the other end of the clamping column 142 is provided with a first clamping block, the clamping cylinder 143 is provided on one side of the clamping column 142, the clamping arm 144 is provided at the swing end of the clamping cylinder 143, and a second clamping block is provided on the clamping arm 144. When the clamping cylinder 143 is actuated, the clamping arm 144 is driven to swing, so that the second clamping block is close to or away from the first clamping block. By controlling the movement of the clamping cylinder 143, the swing of the clamping arm 144 can be controlled, thereby completing the movement of the second clamping block approaching or moving away from the first clamping block, thereby achieving rapid clamping and release of the battery tray, ensuring that the battery tray is clamped to avoid accidents such as falling during transportation.

[0027] Further, the bottom plate friction stir welding station 100 also includes a bottom plate weld grinding station 120, the bottom plate weld grinding station 120 includes a first grinding robot 121 and a first grinding flip table 122, the first grinding flip table 122 is arranged at the end of the first linear module 114, the first grinding flip table 122 is located within the grasping range of the first handling robot 115, and the first grinding robot 121 is arranged on one side of the first grinding flip table 122; The first handling robot 115 is also used to grab and move the bottom plate assembly that has completed reverse welding to the first polishing and turning table 122; the first polishing robot 121 is used to polish the front and back sides of the bottom plate assembly on the first polishing and turning table 122; the first polishing and turning table 122 is used to position the bottom plate assembly and drive the bottom plate assembly to rotate so that the front or back side of the bottom plate assembly faces the polishing part of the first polishing robot 121; The first grinding and turning table 122 is provided with a second positioning assembly, which includes a plurality of third upper and lower pressing cylinders, which respectively position the front and rear sides of the first grinding and turning table 122. Thus, the first grinding robot 121 cooperates with the first grinding and turning table 122 to grind the welds on both the front and back sides of the bottom plate assembly.

[0028] The working principle of the bottom plate friction stir welding station 100 in this embodiment is as follows: the operator manually places each bottom plate component on the first welding platform 112 or uses a loading robot. After the bottom plate components are positioned by the first positioning component 130, the bottom plate front FSW welding robot 111 first welds the front side of the bottom plate components to splice the bottom plate components to form a bottom plate component; then the first handling robot 115 grabs the bottom plate component that has completed front side welding, turns it over so that the back side faces upward, and moves it to another first welding platform 112 located on the other side of the first linear module 114. After the first positioning component 130 of the first welding platform 112 is positioned, the bottom plate back FSW welding robot 113 welds the back side of the bottom plate component; the bottom plate component that has completed back side welding is grabbed by the first handling robot 115 and moved to the first polishing and turning table 122, and the first polishing robot 121 and the first polishing and turning table 122 cooperate to polish both the front and back sides of the bottom plate component. Thus, the friction stir welding is performed on the front and back sides of the bottom plate parts, the bottom plate parts are spliced ​​to form a bottom plate assembly, and the automatic operation of grinding the weld burrs on the bottom plate assembly is achieved.

[0029] Preferably, refer to the attached Figure 5 The bottom plate CNC processing station 200 includes a plurality of first processing centers 211, a second linear module 212 and a second handling robot 213. The first grinding and turning table 122 is arranged front and rear of the head end of the second linear module 212. The second handling robot 213 is arranged at the movable end of the second linear module 212. The plurality of first processing centers 211 are distributed on both sides of the second linear module 212. The plurality of first processing centers 211 are all arranged within the grasping range of the second handling robot 213. The hand of the second handling robot 213 is provided with a second handling fixture 214. The second handling robot 213 is used to grab and move the bottom plate assembly on the first grinding and turning table 122 to the idle first processing center 211; and is used to grab and move the bottom plate assembly processed in the first processing center 211 to the beginning of the bottom plate cleaning station 300; The first machining center 211 is used to perform milling and punching processing on the bottom plate assembly.

[0030] By setting up the second handling robot 213, the second linear module 212 and multiple groups of first processing centers 211, the automation of CNC processing operations such as milling and punching of the bottom plate component is realized, the positioning error caused by human factors is reduced, thereby improving the processing accuracy and product quality, and multiple groups of first processing centers 211 can perform processing at the same time, further improving production efficiency. Therefore, the working principle of the bottom plate component CNC station 200 in this embodiment is that the second handling robot 213 grabs the bottom plate component on the first grinding and turning table 122 and moves it to the idle first processing center 211 for processing. After the processing is completed, the second handling robot 213 grabs the bottom plate component from the first processing center 211 and moves it to the beginning of the bottom plate component cleaning station 300 for subsequent cleaning operations.

[0031] Preferably, refer to the attached Figure 6 The assembly pre-installed CMT welding station 400 includes a third linear module 411, a third handling robot 412, a plurality of CMT pre-welding robots 413, a plurality of first welding flip tables 414 and a first transfer placement table 415. The starting end of the third linear module 411 is connected to the end of the bottom plate component cleaning station 300. The first transfer placement table 415 is arranged at the end of the third linear module 411. The third handling robot 412 is arranged at the movable end of the third linear module 411. The plurality of first welding flip tables 414 are respectively arranged on both sides of the third linear module 411. The CMT pre-welding robot 413 is arranged on one side of the first welding flip table 414. The hand of the third handling robot 412 is provided with a third handling fixture 416. The first welding flip tables 414 are all arranged within the grasping range of the third handling robot 412. The first welding turning table 414 is used to position the bottom plate assembly and each assembly component and to drive the assembled assembly to rotate so that the front or back of the assembly assembly faces the welding part of the CMT pre-welding robot 413; the third handling robot 412 is used to grab and move the bottom plate assembly on the first polishing turning table 122 to the first welding turning table 414; and to grab and move the pre-welded assembly to the first transfer placement table 415; A third positioning assembly 417 is provided on the first welding turning table 414, and the third positioning assembly 417 includes multiple second side pressure cylinders, multiple fourth upper and lower clamping cylinders and multiple fifth upper and lower clamping cylinders. The multiple second side pressure cylinders and multiple fourth upper and lower clamping cylinders are distributed on the front and rear sides of the first welding turning table 414, and the multiple fifth upper and lower clamping cylinders are distributed on the left and right sides of the first welding turning table 414.

[0032] The bottom plate assembly on the bottom plate cleaning station 300 is grabbed by the third transfer robot 412 and moved to the first welding turning table 414 .

[0033] The working principle of the assembly pre-assembly welding station 400 in this embodiment is as follows: the third handling robot 412 grabs the bottom plate assembly that has been cleaned at the end of the bottom plate cleaning station 300 and moves it to the first welding flip table 414, and the operator or the loading robot arm adds the assembly parts to the first welding flip table 414, so that the bottom plate assembly and the assembly parts are positioned and spliced, and the CMT pre-welding robot 413 starts the pre-welding process, so that the bottom plate assembly and the assembly parts are spliced ​​into an assembly assembly, and the pre-welding operation of the assembly assembly is completed in cooperation with the first welding flip table 414. After the pre-welding is completed, the third handling robot 412 grabs the assembly assembly from the first welding flip table 414 and moves it to the first transfer placement table 415 for subsequent processing or transportation.

[0034] Preferably, refer to the attached Figure 7 and 8 The assembly friction stir welding station 500 includes a plurality of assembly front FSW welding robots 511, a fourth linear module 512, a fourth handling robot 513, a plurality of second welding platforms 514 and a second transfer placement table 515. The first transfer placement table 415 is arranged in front and behind the beginning of the fourth linear module 512. The plurality of second welding platforms 514 are respectively arranged on both sides of the fourth linear module 512. The assembly front FSW welding robot 511 is arranged on one side of the second welding platform 514. The fourth handling robot 513 is arranged at the active end of the fourth linear module 512. The hand of the fourth handling robot 513 is provided with a fourth handling fixture 516. The second welding platform 514 is arranged in the grasping range of the fourth handling robot 513. The second welding platform 514 is provided with a fourth positioning component 517. The fourth transfer robot 513 is used to grab the assembly components from the first transfer display table 415 and move them to the second welding platform 514 ; and is used to move the assembly components that have completed front welding on the second welding platform 514 to the second transfer display table 515 .

[0035] By setting up multiple front FSW welding robots 511, stir friction welding can be performed on the front of multiple assembly components respectively; by setting up the fourth linear module 512 to provide linear motion for the fourth handling robot 513, the assembly components can be moved between the first transfer table 415, the second welding platform 514 and the second transfer table 515. The fourth handling robot 513 is provided with a fourth handling fixture 516 to fix the assembly components and to grasp and move the assembly components. The fourth handling fixture 516 has the same structure as the first handling fixture 140. By setting up the fourth positioning component 517 on the second welding platform 514, the positioning of the front welding of the assembly components can be achieved. By setting up the second transfer table 515: it is used to temporarily store the assembly components that have completed the front welding, so as to facilitate subsequent processing actions.

[0036] The assembly friction stir welding station 500 also includes an assembly front grinding station 520, which includes a fifth linear module 521, a fifth handling robot 522, a plurality of second grinding robots 523, a plurality of first grinding platforms 524 and a third transfer placement table 525. The starting end of the fifth linear module 521 is connected to the end of the fourth linear module 512 front to back, the third transfer placement table 525 is arranged at the end of the fifth linear module 521, the fifth handling robot 522 is arranged at the active end of the fifth linear module 521, the plurality of first grinding platforms 524 are respectively arranged on both sides of the fifth linear module 521, the hand of the fifth handling robot 522 is provided with a fifth handling fixture 526, and the first grinding platform 524 is provided with a fifth positioning component 527; The fifth transfer robot 522 is used to grab and move the assembly components that have completed front-side welding to the first polishing platform 524; and is used to grab and move the assembly components that have completed polishing on the first polishing platform 524 to the third transfer display table 525.

[0037] By setting up a fifth linear module 521, it is used to provide linear motion for the fifth transfer robot 522, so that the assembly component can be moved between the second transfer display table 515, the first grinding platform 524 and the third transfer display table 525. By setting up a fifth transfer fixture 526 on the fifth transfer robot 522, the fifth transfer fixture 526 has the same structure as the first transfer fixture 140, so as to realize the grasping of the assembly component. By setting up multiple second grinding robots 523 and the first grinding platform 524, the welding seams formed on the front of the assembly component can be polished respectively. By setting up a third transfer display table 525: it is used to temporarily store the polished assembly components.

[0038] Further, the assembly friction stir welding station 500 also includes a plurality of assembly reverse FSW welding robots 531, a sixth linear module 532, a sixth handling robot 533 and a plurality of third welding platforms 534. The third transfer placement table 525 is arranged in front and behind the starting end of the sixth linear module 532. The plurality of third welding platforms 534 are respectively arranged on both sides of the sixth linear module 532. The assembly reverse FSW welding robot 531 is arranged on one side of the third welding platform 534. The sixth handling robot 533 is arranged at the active end of the sixth linear module 532. The hand of the sixth handling robot 533 is provided with a sixth handling fixture 535. The third welding platform 534 is arranged in the grasping range of the sixth handling robot 533. The third welding platform 534 is provided with a sixth positioning component 536. The sixth transfer robot 533 is used to grab the assembly components from the third transfer placement table 525 and move them to the third welding platform 534 .

[0039] By setting up multiple assembly reverse FSW welding robots 531, stir friction welding can be performed on the reverse sides of multiple assembly components respectively; by setting up the sixth linear module 532 to provide linear motion for the sixth handling robot 533, the assembly components can be moved between the third transfer table 525 and the third welding platform 534. The sixth handling robot 533 is provided with a sixth handling fixture 535 to fix the assembly components, thereby grasping and moving the assembly components. The sixth handling fixture 535 has the same structure as the first handling fixture 140. By setting up the sixth positioning component 536 on the third welding platform 534, the reverse side welding of the assembly components can be positioned. The sixth positioning component 536 has the same structure as the second positioning component 150.

[0040] The assembly friction stir welding station 500 also includes an assembly reverse side grinding station 540, which includes a third grinding robot 541 and a second grinding flip table 542, wherein the second grinding flip table 542 is disposed at the end of the sixth linear module 532, the third grinding robot 541 is disposed at one side of the second grinding flip table 542, and a seventh positioning assembly 543 is disposed on the second grinding flip table 542; The sixth transfer robot 533 is also used to move the assembly components that have completed reverse side welding on the third transfer placement table 525 to the second polishing and turning table 542 .

[0041] By providing the third grinding robot 541 and the second grinding turning table 542 , the welding seam formed on the reverse side of the assembly component can be ground.

[0042] The working principle of the assembly friction stir welding station 500 in this embodiment is as follows: the fourth handling robot 513 grabs the assembly component from the first transfer placement table 415 and moves it to the second welding platform 514, and the assembly front FSW welding robot 511 performs friction stir welding on the front of the assembly component. After the welding is completed, the fourth handling robot 513 grabs the assembly component from the second welding platform 514 and moves it to the second transfer placement table 515; The fifth handling robot 522 grabs the assembly component that has completed front welding from the second transfer placement table 515 and moves it to the first grinding platform 524, and the second grinding robot 523 performs front grinding on the assembly component on the first grinding platform 524; after the grinding is completed, the fifth handling robot 522 grabs the assembly component from the first grinding platform 524 and moves it to the third transfer placement table 525; The sixth handling robot 533 grabs the assembly component from the third transfer placement table 525, flips it and moves it to the third welding platform 534, and the assembly reverse FSW welding robot 531 then performs friction stir welding on the reverse side of the assembly component. After the welding is completed, the sixth handling robot 533 grabs the assembly component from the third welding platform 534 and moves it to the second grinding flipping table 542; With the cooperation of the second polishing turning table 542 and the third polishing robot 541 , the polishing operation on the reverse side of the assembly component is completed.

[0043] Preferably, refer to the attached Fig. 9 The assembly CMT full welding station 600 includes a plurality of second welding flip tables 611, a plurality of CMT full welding robots 612, a seventh handling robot 613 and a seventh linear module 614. The second grinding flip table 542 and the seventh linear module 614 are arranged front and back. The seventh handling robot 613 is arranged at the movable end of the seventh linear module 614. The plurality of second welding flip tables 611 are respectively arranged on both sides of the seventh linear module 614. The CMT full welding robot 612 is arranged on one side of the second welding flip table 611. The second welding flip table 611 is provided with an eighth positioning assembly 615. The hand of the seventh handling robot 613 is provided with a seventh handling fixture 616. The seventh handling robot 613 is used to grab and move the assembly components that have been polished on the second polishing transfer table 525 to the second welding flip table 611; the seventh handling robot 613 is used to grab and move the assembly components that have completed CMT full welding on the second polishing transfer table 525 to the beginning of the CNC processing station 700. Therefore, by setting the seventh handling robot 613, the second welding flip table 611 and the CMT full welding robot 612, the automatic processing of the CMT full welding of the assembly components is realized, which reduces manual intervention and improves production efficiency. By setting the eighth positioning component 615 on the second welding flip table 611, the accurate positioning of the assembly components during the full welding process is ensured, and the possible movement of the assembly components during the flipping process is avoided, thereby improving the quality of CMT full welding and welding consistency. Multiple second welding flip tables 611 and CMT full welding robots 612 are set in multiple numbers, so that multiple assembly components can be processed at the same time, which improves the flexibility and production capacity of production.

[0044] The working principle of the assembly CMT full welding station 600 is: the seventh handling robot 613 grabs the polished assembly components from the second polishing transfer table 525 and moves them to the second welding flip table 611; after the assembly components are positioned on the second welding flip table 611, the CMT full welding robot 612 cooperates with the second welding flip table 611 to perform full welding processing on the assembly components; the assembly components that have completed the CMT full welding processing are grabbed again by the seventh handling robot 613 and moved to the starting end of the CNC processing station 700 for subsequent CNC processing.

[0045] Preferably, refer to the attached Fig.10 The assembly CNC processing station 700 includes a weld inspection station 720, multiple sets of second processing centers 711, an eighth linear module 712, an eighth handling robot 713 and a finished product display table 714. The weld inspection station 720 is located at the end of the assembly stir friction welding station 500, the eighth linear module 712 is located between the weld inspection station 720 and the finished product display table 714, multiple sets of second processing centers 711 are located on both sides of the eighth linear module 712, the eighth handling robot 713 is located at the active end of the eighth linear module 712, the second processing center 711 is located within the active range of the eighth handling robot 713, and the hand of the eighth handling robot 713 is provided with an eighth handling fixture 715.

[0046] By setting up the eighth transfer robot 713, the eighth linear module 712 and multiple sets of second machining centers 711, the automation of CNC machining operations such as punching and tapping of assembly components is achieved, reducing positioning errors caused by human factors, thereby improving machining accuracy and product quality, and multiple sets of second machining centers 711 can perform processing at the same time, further improving production efficiency.

[0047] Furthermore, the weld inspection station 720 includes a first roller conveyor 721, multiple second roller conveyors 722 and a lifting belt conveyor 723. The first roller conveyor 721 is arranged between the end of the assembly stir friction welding station 500 and the starting end of the eighth linear module 712. The second roller conveyors 722 are respectively arranged on both sides of the first roller conveyor 721. The conveying direction of the second roller conveyor 722 is perpendicular to the conveying direction of the first roller conveyor 721. The lifting belt conveyor 723 is arranged below the first roller conveyor 721, and the belt portion of the lifting belt conveyor 723 is located between two of the roller shafts of the first roller conveyor 721 that are spaced apart from each other.

[0048] By setting up the first roller conveyor 721, multiple second roller conveyors 722 and the lifting belt conveyor 723, the lifting belt conveyor 723 is lifted to directly contact the assembly components on the first roller conveyor 721, and the flow direction of the assembly components is changed, so that the assembly components flow to the second roller conveyors 722 on both sides and are conveyed to the detection equipment at the end to complete the defect detection operation. After completing the defect detection, the second roller conveyor 722 and the lifting belt conveyor 723 are reversed to drive the assembly back to the first roller conveyor 721, and then the lifting belt conveyor 723 descends away from the roller shaft of the first roller conveyor 721, so that the assembly can continue to flow to the end of the first roller conveyor 721 to complete the subsequent assembly CNC processing.

[0049] The working principle of the assembly CNC processing station 700 is as follows: the assembly component that has completed CMT full welding enters the starting end of the first roller conveyor 721 under the grasping of the seventh handling robot 613, and is first moved to the weld inspection station 720 for weld inspection on the second roller conveyor 722 and the lifting belt conveyor 723. After the inspection is qualified, the assembly component is returned to the first roller conveyor 721 driven by the second roller conveyor 722 and the lifting belt conveyor 723; the eighth handling robot 713 grasps the assembly component at the end of the first roller conveyor 721, and places the assembly component on the idle second processing center 711 for CNC processing; the assembly component to be completed by CNC processing is grasped again by the eighth handling robot 713, and moved to the finished product display table 714, waiting for subsequent operations.

[0050] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the scope of protection of the present invention.

Claims

1. An automated welding production system for a battery tray, characterized in that: It includes a bottom plate friction stir welding station, a bottom plate assembly CNC station, a bottom plate assembly cleaning station, an assembly pre-assembly CMT welding station, an assembly friction stir welding station, an assembly CMT full welding station and an assembly CNC processing station which are arranged in sequence; The bottom plate friction stir welding station is used to position each bottom plate component; to perform friction stir welding on the front and back sides of the bottom plate components in sequence according to a predetermined welding path, so that the bottom plate components are spliced ​​to form a bottom plate assembly; and to grind the weld formed on the bottom plate assembly; The bottom plate CNC station is used to perform milling and punching processing on the bottom plate assembly; The bottom plate cleaning station is used to perform high-pressure spraying and drying on the bottom plate components; The assembly pre-installed CMT welding station is used to position the bottom plate assembly and frame parts; and is used to perform CMT pre-welding on the bottom plate assembly and frame parts, so that the bottom plate assembly and frame parts are spliced ​​to form an assembly assembly; The assembly friction stir welding station is used to perform friction stir welding on the front and back sides of the preset welds on the assembly components in sequence; and is used to grind the welds formed on the assembly components; The assembly CMT welding station is used to perform CMT full welding on the assembly components; The assembly CNC processing station is used for punching and tapping assembly components.

2. The automated welding production system for a battery tray according to claim 1, characterized in that: The bottom plate friction stir welding station includes a plurality of bottom plate front FSW welding robots, a plurality of first welding platforms, a plurality of bottom plate back FSW welding robots, a first linear module and a first handling robot; the plurality of the first welding platforms are arranged on both sides of the first linear module, and the first handling robot is arranged at the movable end of the first linear module; the hand of the first handling robot is provided with a first handling fixture, and the first welding platform is arranged in the grasping range of the first handling robot; The first handling robot is used to grab the bottom plate assembly that has completed front welding from the first welding platform on one side of the first linear module and move it to the first welding platform on the other side, and flip the bottom plate assembly so that the back side of the bottom plate assembly faces upward; A first positioning assembly is provided on the first welding platform, and the first positioning assembly includes a plurality of first side pressure cylinders, a plurality of first upper and lower pressing cylinders, and a plurality of second upper and lower pressing cylinders. The plurality of first side pressure cylinders and the plurality of first upper and lower pressing cylinders are distributed on the front and rear sides of the first welding platform, and the plurality of second upper and lower pressing cylinders are distributed on the left and right sides of the first welding platform. A positioning bracket is provided at the telescopic end of the second upper and lower pressing cylinders, and an avoidance portion is provided on the positioning bracket. The first transport fixture includes a fixed frame and a plurality of clamping units, wherein the plurality of clamping units are distributed at the four corners of the fixed frame, a connecting plate is provided in the middle of the fixed frame, and the connecting plate is connected to the hand flange of the transport robot; the clamping unit includes a clamping column, a clamping cylinder and a clamping arm, one end of the clamping column is connected to the fixed frame, and the other end of the clamping column is provided with a first clamping block, the clamping cylinder is provided at one side of the clamping column, and the clamping arm is provided at the swinging end of the clamping cylinder, and a second clamping block is provided on the clamping arm, and when the clamping cylinder is actuated, the clamping arm is driven to swing, so that the second clamping block is close to or away from the first clamping block.

3. The automated welding production system for a battery tray according to claim 2, characterized in that: The bottom plate friction stir welding station also includes a bottom plate weld grinding station, and the bottom plate weld grinding station includes a first grinding robot and a first grinding flip table, wherein the first grinding flip table is arranged at the end of the first linear module, the first grinding flip table is located within the grasping range of the first handling robot, and the first grinding robot is arranged at one side of the first grinding flip table; The first handling robot is further used to grab and move the bottom plate assembly that has completed reverse welding to the first polishing and turning table; the first polishing robot is used to polish the front and back sides of the bottom plate assembly on the first polishing and turning table; the first polishing and turning table is used to position the bottom plate assembly and drive the bottom plate assembly to rotate so that the front or back side of the bottom plate assembly faces the polishing part of the first polishing robot; The first polishing and turning table is provided with a second positioning assembly, and the second positioning assembly includes a plurality of third upper and lower pressing cylinders, and the plurality of third upper and lower pressing cylinders are respectively located at the front and rear sides of the first polishing and turning table.

4. The automated welding production system for a battery tray according to claim 3, characterized in that: The bottom plate CNC processing station includes multiple groups of first processing centers, second linear modules and second handling robots. The first grinding and turning table is arranged front and back with the head end of the second linear module. The second handling robot is arranged at the movable end of the second linear module. Multiple groups of the first processing centers are distributed on both sides of the second linear module. Multiple groups of the first processing centers are all arranged within the grasping range of the second handling robot. The hand of the second handling robot is provided with a second handling fixture. The second handling robot is used to grab and move the bottom plate assembly on the first grinding and turning table to the idle first processing center; and is used to grab and move the bottom plate assembly processed in the first processing center to the starting end of the bottom plate cleaning station; The first machining center is used to perform milling and punching processing on the bottom plate component.

5. The automated welding production system for a battery tray according to claim 4, characterized in that: The assembly pre-assembly welding station includes a third linear module, a third handling robot, a plurality of CMT pre-welding robots, a plurality of first welding turning tables and a first transfer placement table. The starting end of the third linear module is connected to the end of the bottom plate cleaning station. The first transfer placement table is arranged at the end of the third linear module. The third handling robot is arranged at the movable end of the third linear module. The plurality of first welding turning tables are respectively arranged on both sides of the third linear module. The CMT pre-welding robot is arranged on one side of the first welding turning table. The hand of the third handling robot is provided with a third handling fixture. The first welding turning tables are all arranged within the grasping range of the third handling robot. The first welding turning table is used to position the bottom plate assembly and each assembly component and to drive the assembled assembly to rotate so that the front or back side of the assembly assembly faces the welding part of the CMT pre-welding robot; the third handling robot is used to grab and move the bottom plate assembly on the first grinding turning table to the first welding turning table; and is used to grab and move the pre-welded assembly to the first transfer placement table; A third positioning assembly is provided on the first welding turning table, and the first positioning assembly includes multiple second side pressure cylinders, multiple fourth upper and lower clamping cylinders and multiple fifth upper and lower clamping cylinders. The multiple second side pressure cylinders and the multiple fourth upper and lower clamping cylinders are distributed on the front and rear sides of the first welding turning table, and the multiple fifth upper and lower clamping cylinders are distributed on the left and right sides of the first welding turning table.

6. The automated welding production system for a battery tray according to claim 5, characterized in that: The assembly friction stir welding station includes a plurality of assembly front FSW welding robots, a fourth linear module, a fourth handling robot, a plurality of second welding platforms and a second transfer placement table, the first transfer placement table is arranged in front and behind the starting end of the fourth linear module, a plurality of the second welding platforms are respectively arranged on both sides of the fourth linear module, the assembly front FSW welding robot is arranged on one side of the second welding platform, the fourth handling robot is arranged at the active end of the fourth linear module, the hand of the fourth handling robot is provided with a fourth handling fixture, the second welding platform is arranged in the grasping range of the fourth handling robot, and the second welding platform is provided with a fourth positioning component; The fourth handling robot is used to grab the assembly component from the first transfer placement table and move it to the second welding platform; and is used to move the assembly component that has completed front welding on the second welding platform to the second transfer placement table; The assembly friction stir welding station also includes an assembly front grinding station, which includes a fifth linear module, a fifth handling robot, a plurality of second grinding robots, a plurality of first grinding platforms and a third transfer placement table. The starting end of the fifth linear module is connected to the end of the fourth linear module front to back, the third transfer placement table is arranged at the end of the fifth linear module, the fifth handling robot is arranged at the active end of the fifth linear module, a plurality of the first grinding platforms are respectively arranged on both sides of the fifth linear module, the hand of the fifth handling robot is provided with a fifth handling fixture, and the first grinding platform is provided with a fifth positioning component; The fifth handling robot is used to grab and move the assembly components that have completed front welding to the first polishing platform; and is used to grab and move the assembly components that have completed polishing on the first polishing platform to the third transfer placement table.

7. The automated welding production system for a battery tray according to claim 6, characterized in that: The assembly friction stir welding station also includes a plurality of assembly reverse FSW welding robots, a sixth linear module, a sixth handling robot and a plurality of third welding platforms. The third transfer placement table is arranged in front and behind the starting end of the sixth linear module. The plurality of third welding platforms are respectively arranged on both sides of the sixth linear module. The assembly reverse FSW welding robot is arranged on one side of the third welding platform. The sixth handling robot is arranged at the active end of the sixth linear module. The hand of the sixth handling robot is provided with a sixth handling fixture. The third welding platform is arranged in the grasping range of the sixth handling robot. The third welding platform is provided with a sixth positioning component. The sixth handling robot is used to grab the assembly components from the third transfer placement table and move them to the third welding platform; The assembly friction stir welding station also includes an assembly reverse side grinding station, the assembly reverse side grinding station includes a third grinding robot and a second grinding flip table, the second grinding flip table is arranged at the end of the sixth linear module, the third grinding robot is arranged on one side of the second grinding flip table, and the second grinding flip table is provided with a seventh positioning component; The sixth handling robot is also used to move the assembly components that have completed reverse side welding on the third transfer placement table to the second grinding and turning table.

8. The automated welding production system for a battery tray according to claim 7, characterized in that: The assembly CMT full welding station includes a plurality of second welding flip tables, a plurality of CMT full welding robots, a seventh handling robot and a seventh linear module. The second grinding flip table is arranged front and rear of the seventh linear module. The seventh handling robot is arranged at the movable end of the seventh linear module. A plurality of the second welding flip tables are respectively arranged on both sides of the seventh linear module. The CMT full welding robot is arranged on one side of the second welding flip table. An eighth positioning assembly is arranged on the second welding flip table. The hand of the seventh handling robot is provided with a seventh handling fixture. The seventh handling robot is used to grab and move the assembly components that have been polished on the second polishing turntable to the second welding flip table; the seventh handling robot is used to grab and move the assembly components that have completed CMT full welding on the second polishing turntable to the starting end of the CNC processing station.

9. The automated welding production system for a battery tray according to claim 1, characterized in that: The assembly CNC processing station includes a weld inspection station, multiple groups of second processing centers, an eighth linear module, an eighth handling robot and a finished product display table. The weld inspection station is located at the end of the assembly stir friction welding station, the eighth linear module is located between the weld inspection station and the finished product display table, multiple groups of the second processing centers are located on both sides of the eighth linear module, the eighth handling robot is located at the active end of the eighth linear module, the second processing center is located within the active range of the eighth handling robot, and the hand of the eighth handling robot is provided with an eighth handling fixture.

10. The automated welding production system for a battery tray according to claim 9, characterized in that: The weld inspection station includes a first roller conveyor, multiple second roller conveyors and a lifting belt conveyor. The first roller conveyor is arranged between the end of the assembly stir friction welding station and the starting end of the eighth linear module. The second roller conveyors are respectively arranged on both sides of the first roller conveyor. The conveying direction of the second roller conveyor is perpendicular to the conveying direction of the first roller conveyor. The lifting belt conveyor is arranged below the first roller conveyor, and the belt portion of the lifting belt conveyor is located between two roller shafts of the first roller conveyor that are spaced front and back.

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