Modularized, flexible and regionalized system for weld lines

Abstract

The utility model relates to the technical field of welding inspection, in particular to a welding line modularization, flexibility and regionalization system which comprises a welding area, a centralized inspection area and an AGV transfer trolley, the welding area comprises a plurality of welding main lines, and the AGV transfer trolley carries welding finished products at the tail ends of the welding main lines to the centralized inspection area for inspection through a PLC automatic control system; each welding main line comprises a first welding station, a second welding station, a third welding station and a fourth welding station which are sequentially arranged, and weldments are sequentially welded and conveyed by the first welding station, the second welding station, the third welding station and the fourth welding station; weldments in the first welding station, the second welding station and the third welding station are automatically welded through a welding robot; and the fourth welding station is a manual repair welding station and is used for manual repair welding of the missed welding part of the weldment after the third welding procedure. The welding device has the effects that the relative occupied area is saved, and the welding efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of welding inspection, and in particular to a modular, flexible and regionalized welding line system. Background Art

[0002] During the production process of automotive product parts, each part needs to be welded into an integral product part through a welding main line. In related technologies, multiple welding main lines are usually set up, and two robots are configured at each welding workstation of the welding main line to weld parts. An inspection area is set at the end of each welding main line for 100% inspection, scratch inspection, thread inspection, spatter removal inspection and other processes of the product.

[0003] Regarding the above-mentioned related technologies, the inventors believe that the main welding line corresponds to the inspection area one by one, the relevant area is large, and it is a single-piece flow. When a main welding line fails and stops, the staff in the corresponding inspection area will also wait, resulting in a waste of personnel; when the inspection area is shut down due to quality problems, it will also cause the corresponding entire line production to stop, resulting in efficiency loss. Utility Model Content

[0004] In order to save relative floor space and improve welding efficiency, the present application provides a modular, flexible and regionalized welding line system.

[0005] The modular, flexible and regionalized welding line system provided in this application adopts the following technical solutions:

[0006] The welding line is a modular, flexible and regionalized system, including a welding area, a centralized inspection area and an AGV transfer vehicle. The welding area includes multiple welding main lines. The AGV transfer vehicle transports the finished welding products at the end of the welding main line to the centralized inspection area for inspection through a PLC automatic control system.

[0007] By adopting the above technical solution, the main welding line and the centralized inspection area are separated in space, and their respective work is relatively independent and modularly arranged. AGV transfer vehicles are used to transfer materials between the main welding line and the centralized inspection area. When a main welding line fails and stops, the staff in the corresponding inspection area still have welded products to inspect without having to wait; when the inspection area is shut down due to quality problems, the corresponding entire line does not have to stop production, which helps to save relative floor space while improving welding efficiency.

[0008] Optionally, each of the welding main lines comprises a first welding station, a second welding station, a third welding station and a fourth welding station which are arranged in sequence, and the weldment is welded and conveyed in sequence by the first welding station, the second welding station, the third welding station and the fourth welding station;

[0009] The weldments in the first welding station, the second welding station and the third welding station are automatically welded by welding robots;

[0010] The fourth welding station is a manual repair welding station, which is used for manually repairing the leaked parts of the weldment after the third welding process.

[0011] By adopting the above technical solution, when welding weldments, four working steps, namely the first welding station, the second welding station, the third welding station and the fourth welding station, are gradually passed through. First, the parts of the weldment product are welded into a whole through the first welding station, the second welding station and the third welding station, and then the leaking parts are repaired through the manual repair welding operation at the fourth welding station. The welding process is smooth and the welding quality is high.

[0012] Optionally, the first welding station, the second welding station and the third welding station all include a manual placement area and a welding operation area, the manual placement area is provided with a first welding platform, and the welding operation area is provided with a second welding platform; the top surfaces of the first welding platform and the second welding platform are configured to match corresponding parts so as to place and fix the corresponding parts;

[0013] The first welding station and the second welding station are connected by a turntable, and the first welding station and the second welding station can be switched in position through the turntable. The operator places the parts of the weldment on the first welding station or the second welding station in the manual placement area, and the welding robot is located in the welding operation area.

[0014] By adopting the above technical solution, during welding, the staff in the first welding station first places the parts corresponding to the first welding station on the first welding station, then rotates the first welding station to the welding operation area through the turntable, and performs welding operation through the welding robot; at this time, the second welding station rotates to the manual placement area, and the staff places the parts corresponding to the second welding station on the second welding station;

[0015] After the welding of the parts on the first welding station is completed, the turntable rotates to its reset position, the first welding station returns to the manual placement area, and the second welding station returns to the welding operation area. At this time, the welding robot welds the parts on the second welding station. At the same time, the staff in the manual placement area takes out the parts welded on the first welding station and transfers them to the second welding station by transportation. Then, the parts corresponding to the first welding station are placed on the first welding station again. The turntable is started, and the first welding station is transferred to the welding operation area again for welding. At this time, the parts that have been welded on the second welding station are transferred out, and the staff takes them out and transfers them to the second welding station by conveyor placement.

[0016] The two welded parts welded on the first welding station and the second welding station in the first welding station are transported to the first welding station in the second welding station. The staff then places the corresponding parts in the second welding station on the first welding station in the second welding station. The first welding station in the second welding station is transferred to the corresponding welding operation area through the turntable, and the welding operation is performed by the corresponding welding robot. The second welding station in the second welding station is transferred out to wait for the placement of the next wave of weldments and parts, and then transferred back to the corresponding welding operation area for welding.

[0017] The welded parts welded at the second welding station are transferred to the third welding station by conveying. The operation steps in the third welding station are the same as those in the second welding station, but the welded parts are different.

[0018] The weldment welded at the third welding station is finally transferred to the fourth welding station by conveying, and then manually repaired and finally welded into a complete weldment product.

[0019] Optionally, four welding robots are provided in each welding operation area.

[0020] The adoption of the above technical solution is helpful to improve welding efficiency and help reduce the number of welding stations while meeting process requirements, thereby further reducing the occupied area.

[0021] Optionally, the first welding station and the second welding station are both detachably connected to the turntable, and the welding area also includes a plurality of spare welding station tools detachably connected to the turntable, and the spare tools are used to replace the first welding station and / or the second welding station.

[0022] By adopting the above technical solution, the first welding station and the second welding station in the station can be switched through the spare welding station tooling. Different welding main lines can produce the same welded product or different welded products, and can be set according to the actual situation. When the product output is low, only one welding main line can be used by switching the spare welding station tooling, and there is no need to use multiple welding main lines to produce the low-output product, thus realizing flexible production; for products with high output requirements, a new welding main line can be quickly added by directly copying the welding main line, which greatly shortens the project cycle and reduces project risks.

[0023] Optionally, the weldment is transported between the first welding station and the second welding station via a slide.

[0024] Optionally, transportation is performed between the second welding station and the third welding station via a transfer robot.

[0025] Optionally, the third welding station and the fourth welding station are transported by a first seven-axis robot.

[0026] By adopting the above technical solution, corresponding conveying modes are selected between the first welding station, the second welding station, the third welding station and the fourth welding station, which is convenient for operation.

[0027] Optionally, the centralized inspection area includes a release inspection table, a second seven-axis robot, an automatic inspection area, a marking inspection area and a material discharge area, and a plurality of the release inspection tables are arranged in parallel, and the AGV transfer vehicle is used to transfer the welded parts processed by the fourth welding station to the release inspection table;

[0028] The second seven-axis robot is used to transfer the welds on the inspection table to the automatic inspection area. A variety of automatic inspection fixtures are provided in the automatic inspection area for inspection of different welds. The welds inspected by the automatic inspection fixtures are transported to the marking inspection area by means of a hoist. The marking inspection area is used to perform manual marking inspection, thread inspection and spatter removal inspection on the welds. The welds inspected by the marking inspection area are transported to the discharge area by means of a hoist.

[0029] By adopting the above technical solution, after the weldment is completed in the welding area, the AGV transfer vehicle transfers the weldment to the inspection table. The second seven-axis robot transfers the weldment on the inspection table to the automatic inspection area, and inspects the weldment through the corresponding automatic inspection fixture. Then, it is transported to the marking inspection area by means of hoist transportation, and the weldment is manually inspected by marking, thread inspection and spatter removal inspection. Finally, it is transported to the discharge area by means of hoist transportation, and the inspection is centralized and convenient.

[0030] In summary, the present application includes at least one of the following beneficial technical effects:

[0031] 1. The main welding line and the centralized inspection area are separated in space, and their respective work is relatively independent. AGV transfer vehicles are used to transfer materials between the main welding line and the centralized inspection area. When a main welding line fails and stops, the staff in the corresponding inspection area can still inspect the welded products without waiting; when the inspection area stops due to quality problems, the corresponding entire line does not have to stop production, which helps to save relative floor space while improving welding efficiency. It has an innovative design;

[0032] 2. There are four welding robots in each welding operation area, which helps to improve welding efficiency;

[0033] 3. When the product output is low, only one welding main line can be used by switching the spare welding station tooling, and there is no need to use multiple welding main lines to produce the low-output product, thus achieving flexible production; for products with high output requirements, a new welding main line can be quickly added by directly copying the welding main line, which greatly shortens the project cycle and reduces project risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1It is a schematic diagram of the overall structure of the modular, flexible and regionalized welding line system of the embodiment of the present application.

[0035] Figure 2 It is a structural schematic diagram used to display the welding main line in the embodiment of the present application.

[0036] Figure 3 It is a structural schematic diagram used to display the centralized inspection area in the embodiment of the present application.

[0037] Explanation of the accompanying drawings: 1. Welding area; 11. Welding main line; 12. Welding robot; 13. Manual placement area; 14. Welding operation area; 15. First welding station; 16. Second welding station; 17. Turntable; 2. Centralized inspection area; 21. Placement and inspection station; 22. Second seven-axis robot; 23. Automatic inspection area; 231. Automatic inspection fixture; 24. Marking and inspection area; 25. Placement area; 3. AGV transfer vehicle; 4. First welding station; 41. Slide; 5. Second welding station; 51. Transfer robot; 6. Third welding station; 61. First seven-axis robot; 7. Fourth welding station. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-3 This application is described in further detail.

[0039] The present application embodiment discloses a modular, flexible, and regionalized welding line system. Figure 1-2 The modular, flexible and regionalized welding line system includes a welding area 1, a centralized inspection area 2 and an AGV transfer vehicle 3. The welding area 1 includes multiple welding main lines 11. In the embodiment of the present application, three welding main lines 11 are provided. The AGV transfer vehicle 3 transports the finished welding products at the end of the welding main line 11 to the centralized inspection area 2 for inspection through a PLC automatic control system.

[0040] The main welding line 11 and the centralized inspection area 2 are separated in space, and their respective work is relatively independent. An AGV transfer vehicle 3 is used to transfer materials between the main welding line 11 and the centralized inspection area 2. When a main welding line 11 fails and stops, the staff in the corresponding inspection area still have welded products to inspect without having to wait; when the inspection area is shut down due to quality problems, the corresponding entire line does not have to stop production, which helps to save relative floor space while improving welding efficiency.

[0041] Reference Figure 2Each welding main line 11 includes a first welding station 4, a second welding station 5, a third welding station 6 and a fourth welding station 7 which are arranged in sequence. The weldments are welded and conveyed in sequence by the first welding station 4, the second welding station 5, the third welding station 6 and the fourth welding station 7; the weldments in the first welding station 4, the second welding station 5 and the third welding station 6 are automatically welded by a welding robot 12; the fourth welding station 7 is a manual repair welding station, which is used for manual repair welding of the leaked welds of the weldments after the third welding process, that is, the operator performs welding operations through welding tools.

[0042] When welding the weldment, it gradually goes through four working steps: the first welding station 4, the second welding station 5, the third welding station 6 and the fourth welding station 7. First, it goes through the first welding station 4, the second welding station 5 and the third welding station 6 to weld the parts of the weldment product into a whole, and then the manual repair welding operation of the fourth welding station 7 is used to repair the leaked parts. The welding process is smooth and the welding quality is high.

[0043] Reference Figure 2 The first welding station 4, the second welding station 5 and the third welding station 6 all include a manual placement area 13 and a welding operation area 14. The manual placement area 13 is provided with a first welding platform 15, and the welding operation area 14 is provided with a second welding platform 16; the top surfaces of the first welding platform 15 and the second welding platform 16 are configured to match the corresponding parts for placement and fixation of the corresponding parts. The first welding platform 15 and the second welding platform 16 are connected by a turntable 17, and the first welding platform 15 and the second welding platform 16 can be switched by the turntable 17. The operator places the parts of the weldment on the first welding platform 15 or the second welding platform 16 in the manual placement area 13, and the welding robot 12 is located in the welding operation area 14.

[0044] During welding, the staff in the first welding station 4 first places the parts corresponding to the first welding station 15 on the first welding station 15, then rotates the first welding station 15 to the welding operation area 14 through the turntable 17, and performs welding operation through the welding robot 12; at this time, the second welding station 16 rotates to the manual placement area 13, and the staff places the parts corresponding to the second welding station 16 on the second welding station 16;

[0045] After the welding of the parts on the first welding station 15 is completed, the turntable 17 rotates to reset, the first welding station 15 is returned to the manual placement area 13, and the second welding station 16 is returned to the welding operation area 14. At this time, the welding robot 12 welds the parts on the second welding station 16. At the same time, the staff in the manual placement area 13 takes out the welded parts on the first welding station 15 and transfers them to the second welding station 5 by transportation, and then repeatedly places the parts corresponding to the first welding station 15 on the first welding station 15. The turntable 17 is started, and the first welding station 15 is transferred to the welding operation area 14 again for welding. At this time, the welded parts on the second welding station 16 are transferred out, and the staff takes them out and transfers them to the second welding station 5 by conveying.

[0046] The two welded pieces welded on the first welding station 15 and the second welding station 16 in the first welding station 4 are transported to the first welding station 15 in the second welding station 5, and the staff then places the corresponding parts in the second welding station 5 on the first welding station 15 in the second welding station 5. The first welding station 15 in the second welding station 5 is transferred to the corresponding welding operation area 14 through the turntable 17, and the welding operation is performed by the corresponding welding robot 12, and the second welding station 16 in the second welding station 5 is transferred out to wait for the placement of the next wave of weldments and parts, and then transferred back to the corresponding welding operation area 14 for welding.

[0047] The welded parts after being welded at the second welding station 5 are transferred to the third welding station 6 by conveying. The operation steps in the third welding station 6 are the same as those in the second welding station 5, but the welded parts are different.

[0048] The weldment welded at the third welding station 6 is finally transferred to the fourth welding station 7 by means of a conveyor, and then manually repaired by welding, and finally welded into a complete weldment product.

[0049] Reference Figure 2 , four welding robots 12 are provided in each welding operation area 14. It helps to improve welding efficiency. The first welding station 15 and the second welding station 16 are both detachably connected to the turntable 17. The welding area 1 also includes a number of spare welding station fixtures that can be detachably connected to the turntable 17. In the embodiment of the present application, the spare welding station fixtures are not displayed. The spare fixtures are used to replace the first welding station 15 and / or the second welding station 16, and can be selected according to actual conditions. In the embodiment of the present application, any method that can realize the detachable connection of the first welding station 15, the second welding station 16 and the spare welding station fixture with the turntable 17 is acceptable, and will not be elaborated here.

[0050] The first welding station 15 and the second welding station 16 in the station can be switched through the spare welding station tooling. Different welding main lines 11 can produce the same welded product or different welded products, and can be set according to actual conditions. When the product output is low, only one welding main line 11 can be used by switching the spare welding station tooling, and multiple welding main lines 11 do not need to produce the low-output product, so as to achieve flexible production; for products with high output requirements, a new welding main line 11 can be quickly added by directly copying the welding main line 11, which greatly shortens the project cycle and reduces project risks.

[0051] Reference Figure 2, the first welding station 4 and the second welding station 5 are transported by the slide 41. The second welding station 5 and the third welding station 6 are transported by the transfer robot 51, and the model of the transfer robot 51 is Fanuc R-2000ic210F. The third welding station and the fourth welding station 7 are transported by the first seven-axis robot 61, and the model of the first seven-axis robot 61 is Fanuc M-900ib 400L. The first welding station 4, the second welding station 5, the third welding station 6 and the fourth welding station 7 are transported by the corresponding transport mode, which is convenient for operation.

[0052] Reference Figure 1 and Figure 3 The centralized inspection area 2 includes a release inspection platform 21, a second seven-axis robot 22, an automatic inspection area 23, a marking inspection area 24 and a material discharge area 25. There are multiple release inspection platforms 21 arranged in parallel. The AGV transfer vehicle 3 is used to transfer the welded parts processed by the fourth welding station 7 to the release inspection platform 21. The second seven-axis robot 22 is used to transfer the welded parts on the release inspection platform 21 to the automatic inspection area 23. The model of the second seven-axis robot 22 is also Fanuc M-900ib 400L. A variety of automatic inspection fixtures 231 are arranged in the automatic inspection area 23 for inspection of different welded parts. There are two types of automatic inspection fixtures 231 in the embodiment of the present application. The welded parts inspected by the automatic inspection fixture 231 are transported to the marking inspection area 24 by means of a sling. The marking inspection area 24 is used to perform manual marking inspection, thread inspection and spatter removal inspection on the welded parts. The welded parts inspected by the marking inspection area 24 are transported to the material discharge area 25 by means of a sling.

[0053] After the weld is completed in welding area 1, the AGV transfer vehicle 3 transfers the weld to the inspection table 21. The second seven-axis robot 22 transfers the weld on the inspection table 21 to the automatic inspection area 23, and inspects the weld through the corresponding automatic inspection fixture 231. Then, it is transported to the marking inspection area 24 by means of hoist transportation, and the weld is manually inspected by marking, thread inspection and spatter removal inspection. Finally, it is transported to the discharge area 25 by means of hoist transportation, and the inspection is centralized and convenient.

[0054] The implementation principle of the modular, flexible and regionalized welding line system of the embodiment of the present application is: during welding, the weldment is welded in sequence at the first welding station 4, the second welding station 5 and the third welding station 6.

[0055] The weldment welded at the third welding station 6 is finally transferred to the fourth welding station 7 by means of a conveyor, and then manually repaired by welding, and finally welded into a complete weldment product.

[0056] After the weld is completed in welding area 1, the AGV transfer vehicle 3 transfers the weld to the inspection table 21, and the second seven-axis robot 22 transfers the weld on the inspection table 21 to the automatic inspection area 23, and inspects the weld through the corresponding automatic inspection fixture 231, and then transports it to the marking inspection area 24 by means of hoist transportation, and manually performs marking inspection, thread inspection and spatter removal inspection on the weld, and finally transports it to the discharge area 25 by means of hoist transportation to complete the welding and inspection of the weld product.

[0057] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. Modular, flexible and regionalized welding line system, characterized by: The invention comprises a welding area (1), a centralized inspection area (2) and an AGV transfer vehicle (3); the welding area (1) comprises a plurality of welding main lines (11); the AGV transfer vehicle (3) transports the welded products at the end of the welding main line (11) to the centralized inspection area (2) for inspection through a PLC automatic control system.

2. The modular, flexible and regionalized welding line system according to claim 1, characterized in that: Each of the welding main lines (11) comprises a first welding station (4), a second welding station (5), a third welding station (6) and a fourth welding station (7) which are arranged in sequence, and the welded parts are welded and transported in sequence by the first welding station (4), the second welding station (5), the third welding station (6) and the fourth welding station (7); The weldments in the first welding station (4), the second welding station (5), and the third welding station (6) are automatically welded by a welding robot (12); The fourth welding station (7) is a manual repair welding station, which is used for manually repairing the leaked welds of the weldment after the third welding process.

3. The modular, flexible and regionalized welding line system according to claim 2, characterized in that: The first welding station (4), the second welding station (5) and the third welding station (6) all comprise a manual placement area (13) and a welding operation area (14); the manual placement area (13) is provided with a first welding platform (15), and the welding operation area (14) is provided with a second welding platform (16); the top surfaces of the first welding platform (15) and the second welding platform (16) are arranged to match corresponding parts so as to allow the corresponding parts to be placed and fixed; The first welding station (15) and the second welding station (16) are connected via a turntable (17); the first welding station (15) and the second welding station (16) can be switched in position via the turntable (17); an operator places parts of a weldment on the first welding station (15) or the second welding station (16) in a manual placement area (13); and the welding robot (12) is located in a welding operation area (14).

4. The modular, flexible and regionalized welding line system according to claim 3, characterized in that: Four welding robots (12) are arranged in each welding operation area (14).

5. The modular, flexible and regionalized welding line system according to claim 3 or 4, characterized in that: The first welding platform (15) and the second welding platform (16) are both detachably connected to the turntable (17), and the welding area (1) also includes a plurality of spare welding platform tools detachably connected to the turntable (17), and the spare tools are used to replace the first welding platform (15) and / or the second welding platform (16).

6. The modular, flexible and regionalized welding line system according to claim 3 or 4, characterized in that: The weldment is transported between the first welding station (4) and the second welding station (5) via a slide table (41).

7. The modular, flexible and regionalized welding line system according to claim 3 or 4, characterized in that: The second welding station (5) and the third welding station (6) are transported between them via a transfer robot (51).

8. The modular, flexible and regionalized welding line system according to claim 3 or 4, characterized in that: The third welding station (7) and the fourth welding station (7) are transported via a first seven-axis robot (61).

9. The modular, flexible and regionalized welding line system according to any one of claims 2 to 4, characterized in that: The centralized inspection area (2) comprises an inspection platform (21), a second seven-axis robot (22), an automatic inspection area (23), a marking inspection area (24) and a material discharge area (25); a plurality of inspection platforms (21) are arranged in parallel; and the AGV transfer vehicle (3) is used to transfer welded parts processed by the fourth welding station (7) to the inspection platform (21); The second seven-axis robot (22) is used to transfer the weldment on the inspection table (21) to the automatic inspection area (23). The automatic inspection area (23) is provided with a plurality of automatic inspection fixtures (231) for inspection of different weldments. The weldment inspected by the automatic inspection fixture (231) is transported to the marking inspection area (24) by means of a sling. The marking inspection area (24) is used to perform manual marking inspection, thread inspection and spatter removal inspection on the weldment. The weldment inspected by the marking inspection area (24) is transported to the discharge area (25) by means of a sling.

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