Robot structure suitable for narrow seam welding

Abstract

The utility model relates to the technical field of welding robots, and discloses a robot structure suitable for narrow seam welding, which comprises a base, the top of the base is fixedly connected with a mechanical arm I, the left side of the mechanical arm I is rotatably connected with a mechanical arm II, and the left side of the mechanical arm II is fixedly connected with a welding arm. A groove is formed in the bottom end of the welding arm, a first connecting column is fixedly connected to the interior of the welding arm, and a plurality of clamping blocks are fixedly connected to the bottom of the first connecting column. According to the utility model, the part of the welding head of the welding robot is detachably mounted and designed, so that when the welding head has a use problem, a user can conveniently and simply dismount and replace the welding head, the whole mechanical arm does not need to be replaced and maintained, the replacement process of parts is simplified, and the time is shortened; and other types of welding heads can be replaced according to different welding scenes, so that diversified requirements of users are met.

Description

Technical Field

[0001] This utility model relates to the field of welding robot technology, and in particular to a robot structure suitable for narrow-slit welding. Background Technology

[0002] Narrow-seam welding is an efficient process for welding thick plates or high-precision applications. Compared with traditional welding, it can reduce filler material, improve efficiency, and reduce deformation. Welding robots are important equipment in industrial automation and have key applications in precision manufacturing, aerospace and other fields. With the continuous development of science and technology, narrow-seam welding robots have great development potential and prospects.

[0003] In existing technologies, some devices may experience weld head damage or incompatibility with the processing environment during welding. The replacement and maintenance process is complex and time-consuming, which is not conducive to improving production efficiency and economic benefits. The equipment has low flexibility and compatibility and is not suitable for use in various scenarios. Utility Model Content

[0004] This invention proposes a robot structure suitable for narrow-slit welding, aiming to improve the problem of inconvenient replacement of damaged welding heads in some existing devices.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A robot structure suitable for narrow-slit welding includes a base, a first robotic arm fixedly connected to the top of the base, a second robotic arm rotatably connected to the left side of the first robotic arm, a welding arm fixedly connected to the left side of the second robotic arm, a groove formed inside the bottom end of the welding arm, a first connecting post fixedly connected inside the welding arm, multiple locking blocks fixedly connected to the bottom of the first connecting post, cylindrical groove spaces formed inside the locking blocks, two springs fixedly connected inside the welding arm, retaining rings fixedly connected to the outside of the two springs, a coupling joint rotatably connected to the bottom of the locking blocks, the bottom of the coupling joint being designed as a curved surface, a locking shaft fixedly connected inside the coupling joint, and a second connecting post fixedly connected to the bottom of the coupling joint.

[0007] As a further description of the above technical solution:

[0008] A conical block is fixedly connected to the bottom of the second connecting column, and a second connecting block is fixedly connected to the bottom of the conical block.

[0009] As a further description of the above technical solution:

[0010] The bottom of the second connecting block is fixedly connected to the third connecting block, and the bottom of the third connecting block is fixedly connected to the welding head.

[0011] As a further description of the above technical solution:

[0012] The welding arm is externally fixedly connected to multiple limiting blocks, and connecting blocks are fixedly connected to both the left and right sides of each limiting block. A connecting shaft is rotatably connected to the side of the limiting block that is close to it.

[0013] As a further description of the above technical solution:

[0014] Both the welding arm and the second robotic arm are fixedly connected to the outside of multiple fixed rings, and a smoke pipe is rotatably connected inside the fixed rings.

[0015] As a further description of the above technical solution:

[0016] The output end of the flue is fixedly connected to a dust collection box, and the top of the dust collection box has multiple small grooves.

[0017] As a further description of the above technical solution:

[0018] A filter screen is fixedly connected inside the dust collection box, and a fan is fixedly connected inside the dust collection box.

[0019] As a further description of the above technical solution:

[0020] A motor is fixedly connected to the right side of the fan, and a support plate is fixedly connected to the bottom of the motor.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the welding head of the welding robot is designed to be detachable. When the welding head has a problem, it is convenient for users to simply disassemble and replace the welding head without replacing or repairing the entire robotic arm. This simplifies the parts replacement process, shortens the time, and allows for the replacement of other models of welding heads according to different welding scenarios, thus meeting the diverse needs of users.

[0023] 2. In this utility model, a smoke extraction and dust removal structure is added near the welding head to absorb the smoke and dust generated during welding and release it after filtration. This can reduce the harm of air pollution to the environment, and also play a role in protecting the personal safety of workers, which is conducive to the sustainable development of green economy of enterprises. Attached Figure Description

[0024] Figure 1 This is a perspective view of a robot structure suitable for narrow-slit welding proposed in this utility model;

[0025] Figure 2 This is a cross-sectional view of a dust collection box for a robot structure suitable for narrow-slit welding, as proposed in this utility model.

[0026] Figure 3 A cross-sectional view of a welding arm for a robot structure suitable for narrow-slit welding proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of a welding head structure for a robot structure suitable for narrow-slit welding, as proposed in this utility model.

[0028] Legend:

[0029] 1. Base; 2. Robotic Arm 1; 3. Robotic Arm 2; 4. Welding Arm; 5. Dust Collection Box; 6. Smoke Pipe; 7. Fixing Ring; 8. Connecting Block 1; 9. Welding Head; 10. Filter Screen; 11. Fan; 12. Motor; 13. Support Plate; 14. Connecting Column 1; 15. Clamping Block; 16. Spring; 17. Snap Ring; 18. Connecting Shaft; 19. Limiting Block; 20. Clamping Shaft; 21. Connecting Joint; 22. Connecting Column 2; 23. Conical Block; 24. Connecting Block 2; 25. Connecting Block 3. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figures 1-4 This utility model provides an embodiment of a robot structure suitable for narrow-slit welding, including a base 1. A robotic arm 2 is fixedly connected to the top of the base 1. A robotic arm 3 is rotatably connected to the left side of the robotic arm 2. During welding, the robotic arm 2 and robotic arm 3 can be operated to control the direction. A welding arm 4 is fixedly connected to the left side of the robotic arm 3. A groove is opened inside the bottom end of the welding arm 4 to accommodate the locking part. A connecting post 14 is fixedly connected inside the welding arm 4. Multiple locking blocks 15 are fixedly connected to the bottom of the connecting post 14. A cylindrical groove space is opened inside the locking block 15. Two springs 16 are fixedly connected inside the welding arm 4. A retaining ring 17 is fixedly connected to the outside of the two springs 16. The retaining ring 17 can be locked in the position of the connecting post 14 to prevent it from falling due to its own weight. A connector 21 is rotatably connected to the bottom of the locking block 15. The bottom of the connector 21 is designed as a curved surface to facilitate sliding from the edge of the curved surface during installation or disassembly. A locking shaft 20 is fixedly connected inside the connector 21.

[0032] Reference Figure 4The bottom of the connector 21 is fixedly connected to a connecting post 22, the bottom of the connecting post 22 is fixedly connected to a conical block 23, the bottom of the conical block 23 is fixedly connected to a connecting block 24, the bottom of the connecting block 24 is fixedly connected to a connecting block 3 25, the bottom of the connecting block 3 25 is fixedly connected to a welding head 9, and the outside of the welding arm 4 is fixedly connected to multiple limiting blocks 19. Both the left and right sides of the limiting blocks 19 are fixedly connected to connecting blocks 18, and the adjacent side of the limiting blocks 19 is rotatably connected to a connecting shaft 18. The welding head 9 can be limited by removing or inserting the connecting shaft 18 to ensure that the welding head 9 is connected to the welding arm 4.

[0033] Reference Figure 2 Multiple fixing rings 7 are fixedly connected to the outside of both welding arm 4 and robotic arm 2 3. A smoke pipe 6 is rotatably connected inside the fixing ring 7. The fixing ring 7 can limit the smoke pipe 6 to prevent the smoke pipe 6 from shaking excessively during the rotation of robotic arm 2 and robotic arm 2 3 during welding. A dust collection box 5 is fixedly connected to the output end of the smoke pipe 6. The top of the dust collection box 5 has multiple small grooves to facilitate the discharge of purified gas. A filter screen 10 is fixedly connected inside the dust collection box 5. A fan 11 is fixedly connected inside the dust collection box 5. A motor 12 is fixedly connected to the right side of the fan 11. The motor 12 provides driving force for the rotation of the fan 11. A support plate 13 is fixedly connected to the bottom of the motor 12.

[0034] Working principle: When the welding arm 4 needs to be disassembled, the connecting shaft 18 is first pulled out from the limiting block 19, the first layer of limiting structure is released, and the cylindrical grooves in the multiple engaging blocks 15 engage with the mating joint 21. The mating joint 21 is equipped with an engaging shaft 20, which engages with the cylindrical space of the engaging block 15. This can prevent the welding head 9 from loosening or shifting during the rotation of the robotic arm 1 2 and robotic arm 2 3. The welding arm 4 is equipped with a spring 16, and the retaining ring 17 can be locked onto the connecting post 1 at the top of the welding head 9. Position 4 prevents the welding head 9 from falling off automatically during splicing and installation due to its neutrality. The bottom of the joint 21 is designed as a curved surface, which exerts force on the retaining ring 17, causing the spring 16 to compress and allowing the welding head 9 to be removed directly. During installation, the welding head 9 is inserted into the welding arm 4, and the connecting column 14 slides towards the inner wall of the welding arm 4. The spring 16 will compress through its own elasticity, locking the retaining ring 17 onto the outside of the connecting column 14. Finally, the connecting shaft 18 is rotatably connected to the limiting block 19.

[0035] During welding, the motor 12 is activated, which drives the fan 11 to rotate. Because the top of the dust collection box 5 has a small groove, the high-speed rotation of the fan 11 creates a pressure difference between the inside and outside of the dust collection box 5, resulting in a partial vacuum inside. Under atmospheric pressure, the welding fumes are drawn into the smoke pipe 6 and then into the dust collection box 5. The dust collection box 5 is equipped with a filter screen 10, and the fumes are discharged after being filtered.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A robot structure suitable for narrow-slit welding, comprising a base (1), characterized in that: The base (1) is fixedly connected to the top of a mechanical arm (2), and a mechanical arm (3) is rotatably connected to the left side of the mechanical arm (2). A welding arm (4) is fixedly connected to the left side of the mechanical arm (3). A groove is provided inside the bottom end of the welding arm (4). A connecting column (14) is fixedly connected inside the welding arm (4). Multiple locking blocks (15) are fixedly connected to the bottom of the connecting column (14). A cylindrical groove space is provided inside the locking block (15). Two springs (16) are fixedly connected inside the welding arm (4). A retaining ring (17) is fixedly connected to the outside of the two springs (16). A coupling joint (21) is rotatably connected to the bottom of the locking block (15). The bottom of the coupling joint (21) is designed as a curved surface. A locking shaft (20) is fixedly connected inside the coupling joint (21). A connecting column (22) is fixedly connected to the bottom of the coupling joint (21).

2. The robot structure suitable for narrow-slit welding according to claim 1, characterized in that: A conical block (23) is fixedly connected to the bottom of the connecting column 2 (22), and a connecting block 2 (24) is fixedly connected to the bottom of the conical block (23).

3. The robot structure suitable for narrow-slit welding according to claim 2, characterized in that: The bottom of the second connecting block (24) is fixedly connected to the third connecting block (25), and the bottom of the third connecting block (25) is fixedly connected to the welding head (9).

4. The robot structure suitable for narrow-slit welding according to claim 1, characterized in that: The welding arm (4) is externally fixedly connected to multiple limiting blocks (19), and connecting blocks (8) are fixedly connected to both the left and right sides of the limiting blocks (19). A connecting shaft (18) is rotatably connected to the side of the limiting blocks (19) that is close to each other.

5. A robot structure suitable for narrow-slit welding according to claim 1, characterized in that: Multiple fixing rings (7) are fixedly connected to the outside of both the welding arm (4) and the second mechanical arm (3), and a smoke pipe (6) is rotatably connected inside the fixing ring (7).

6. A robot structure suitable for narrow-slit welding according to claim 5, characterized in that: The output end of the smoke pipe (6) is fixedly connected to a dust collection box (5), and the top of the dust collection box (5) has multiple small grooves.

7. A robot structure suitable for narrow-slit welding according to claim 6, characterized in that: A filter screen (10) is fixedly connected inside the dust collection box (5), and a fan (11) is fixedly connected inside the dust collection box (5).

8. A robot structure suitable for narrow-slit welding according to claim 7, characterized in that: A motor (12) is fixedly connected to the right side of the fan (11), and a support plate (13) is fixedly connected to the bottom of the motor (12).

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