An automated arc welding device for metal rods

Abstract

The application belongs to the technical field of automatic electric arc welding, and specifically discloses a metal rod automatic electric arc welding device, which comprises an electric arc welding mechanical arm and a workbench, the output end of the electric arc welding mechanical arm is provided with an electric arc welding head, the electric arc welding mechanical arm is installed at the rear of the workbench, two clamping mechanisms are symmetrically installed above the workbench and close to one end of the electric arc welding mechanical arm, a material supporting mechanism is arranged at the middle end of the workbench, and a material collecting mechanism is arranged above the workbench and away from one end of the electric arc welding mechanical arm. Through the clamping mechanism, the material supporting mechanism and the material collecting mechanism, the high-precision requirement of metal rod welding can be met, efficient and continuous automatic production can be realized, the device is suitable for batch production scenes, and the quality, efficiency and safety of welding operation are significantly improved.

Description

Technical Field

[0001] This invention belongs to the field of automated arc welding technology, and specifically discloses an automated arc welding device for metal rods. Background Technology

[0002] Automated arc welding is an advanced manufacturing process that utilizes automation technology to realize the arc welding process. Through the synergistic effect of mechanical devices, control systems and sensing technologies, it replaces or assists manual labor in key operations such as positioning, wire feeding, welding trajectory control and parameter adjustment in arc welding, so as to improve welding efficiency, stability and quality consistency.

[0003] Existing automated arc welding of metal rods mostly consists of independently set static receiving components (such as fixed material troughs, trays, etc.). Their operation logic is not dynamically related to the workpiece state. After the welding process is completed, the workpiece needs to be moved to the metal rod through an additional mechanism. The operating parameters of these transmission mechanisms often need to be preset manually or controlled by simple delays, and cannot be automatically adapted and adjusted according to the welding completion signal and workpiece specifications. Summary of the Invention

[0004] In view of this, the purpose of this invention is to provide an automated arc welding device for metal rods, in order to solve the problem that existing automated arc welding devices for metal rods mostly use independently set static receiving components (such as fixed material troughs, trays, etc.), whose action logic is not dynamically related to the workpiece state. After the welding process is completed, the workpiece needs to be transferred to the metal rod through an additional mechanism. However, the operating parameters of these transmission mechanisms often need to be preset manually or controlled by simple delays, and cannot be automatically adapted and adjusted according to the welding completion signal and workpiece specifications.

[0005] To achieve the above objectives, the present invention provides an automated arc welding device for metal rods, including an arc welding robotic arm and a worktable. The output end of the arc welding robotic arm is provided with an arc welding head. The arc welding robotic arm is installed behind the worktable. Two locking mechanisms are symmetrically installed on the upper part of the worktable and near the end of the arc welding robotic arm. A material supporting mechanism is provided in the middle of the worktable. A material receiving mechanism is provided on the upper part of the worktable and away from the end of the arc welding robotic arm.

[0006] The material support mechanism includes a lifting block, the bottom of which is movably inserted into the workbench. A rectangular plate is movably mounted above the lifting block. Two first semicircular blocks are symmetrically mounted on the upper surface of the rectangular plate. Two support frames are symmetrically mounted on the rear of the workbench by bolts. A second semicircular block is fixedly mounted on the top of the support frame. The second semicircular block is located above the first semicircular block. A stabilizing component is provided at the end of the lifting block near the arc welding robotic arm.

[0007] In the above technical solution, preferably, the locking mechanism includes a sliding seat, a fixing block is fixedly installed at the front end of the top of the sliding seat, chucks are installed on the adjacent surfaces of the two fixing blocks, metal rods are clamped inside the two chucks, a servo drive assembly is provided above the worktable and near the end of the arc welding robot arm, and the bottom of the sliding seat cooperates with the servo drive assembly.

[0008] In the above technical solution, preferably, a cylinder is provided in the middle of the workbench, the output end of the cylinder is fixedly connected to the bottom of the lifting block, a semi-circular groove is provided on the top of the lifting block, an extension column is fixedly installed in the middle of the bottom of the rectangular plate, a circular column is provided at the bottom of the extension column, the circular column is rotatably installed in the semi-circular groove through a rotating shaft, and a first spring is connected between the bottom of the rear of the rectangular plate and the top of the rear of the lifting block, the first spring being arc-shaped.

[0009] In the above technical solution, preferably, two hollow slots are symmetrically formed on the surface of the lifting block. The stabilizing component includes an L-shaped support plate, the bottom of which is movably installed inside the hollow slot. A guide post is provided inside the hollow slot, and the guide post movably penetrates the bottom of the L-shaped support plate. A second spring is provided on the surface of the guide post and between the top of the L-shaped support plate and the top of the hollow slot. A baffle plate is bolted to the top of the L-shaped support plate. A movable chamber is provided between the baffle plate and the L-shaped support plate. The rear of the rectangular plate is movably disposed in the movable chamber. A lifting plate is fixedly installed at the bottom of the L-shaped support plate. The lifting plate is located inside the movable chamber and directly below the rectangular plate.

[0010] In the above technical solution, preferably, the receiving mechanism includes a sliding plate, a waste trough is provided inside the worktable away from the arc welding robot arm, the sliding plate is rotatably mounted on the top of the waste trough, a storage frame is provided at the front end of the worktable, the end of the sliding plate away from the arc welding robot arm is connected to the waste trough through a rotating shaft, a stepper motor is provided on the side of the worktable, the output end of the stepper motor is connected to the rotating shaft at the end of the sliding plate, and a groove is provided inside the waste trough near the end of the arc welding robot arm.

[0011] In the above technical solution, preferably, multiple rectangular grooves are uniformly opened on the surface of the sliding plate, and side plates are fixedly installed on both sides of the sliding plate.

[0012] In the above technical solution, preferably, a welding space is provided on the surface of the rectangular plate and between the two first semicircular blocks, and a protective plate is fixedly installed at one end of the welding space near the arc welding robot arm.

[0013] In the above technical solution, preferably, the length of the storage frame is the same as the length of the workbench, and the height of the storage frame is lower than that of the workbench.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The first and second semicircular blocks of the material support mechanism form an upper and lower clamping structure, providing rigid support from below and above the metal rod joint. The horizontal posture of the rectangular plate is kept stable by the constraint of the baffle plate and the first spring. The clamping force of the first and second semicircular blocks ensures the coaxiality of the metal rod joint, avoids welding deviation, ensures that the metal rod does not shake or shift during the welding process, and ensures that the weld is uniform and meets the strength requirements.

[0016] The rectangular plate of the material support mechanism is connected to the lifting block by the extension column and the elastic force of the first spring. It can remain horizontal during the lifting process and automatically tilt forward when descending. It can stably support the welding and smoothly release the workpiece.

[0017] The sliding plate of the receiving mechanism is precisely controlled by a stepper motor to rotate. Together with the rectangular groove and side plate, it ensures that finished products or waste materials slide along the preset path. The groove of the waste material trough prevents waste materials from getting stuck, achieving efficient classification of qualified and defective parts and reducing manual sorting costs.

[0018] This device can meet the high precision requirements of metal rod welding and achieve efficient and continuous automated production. It is suitable for mass production scenarios and significantly improves the quality, efficiency and safety of welding operations. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the worktable surface of the present invention;

[0021] Figure 3 This is a side sectional view of the worktable of the present invention;

[0022] Figure 4 This is a schematic diagram of the material support mechanism of the present invention;

[0023] Figure 5 This is a schematic diagram of the material support mechanism from another perspective of the present invention;

[0024] Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle;

[0025] Figure 7 For the present invention Figure 5 Enlarged view of point B in the middle;

[0026] Figure 8 For the present invention Figure 4 Enlarged view of point C in the middle.

[0027] In the diagram: 1. Arc welding robotic arm; 2. Worktable; 3. Servo drive assembly; 4. Locking mechanism; 5. Material feeding mechanism; 6. Material receiving mechanism; 7. Sliding seat; 8. Fixing block; 9. Chuck; 10. Cylinder; 11. Lifting block; 12. Rectangular plate; 13. First semicircular block; 14. Second semicircular block; 15. Support frame; 16. Extension column; 17. Semicircular groove; 18. First spring; 19. Hollow groove; 20. L-shaped support plate; 21. Guide column; 22. Second spring; 23. Lifting plate; 24. Baffle plate; 25. Protective plate; 26. Waste trough; 27. Sliding plate; 28. Rectangular groove; 29. ​​Side plate; 30. Storage frame; 31. Groove; 32. Stepper motor. Detailed Implementation

[0028] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0030] like Figures 1-8 An automated arc welding device for metal rods is shown, including an arc welding robotic arm 1 and a worktable 2. The output end of the arc welding robotic arm 1 is provided with an arc welding head. The arc welding robotic arm 1 is installed behind the worktable 2. Two locking mechanisms 4 are symmetrically installed on the upper part of the worktable 2 and near the end of the arc welding robotic arm 1. A material supporting mechanism 5 is provided in the middle of the worktable 2. A material receiving mechanism 6 is provided on the upper part of the worktable 2 and away from the end of the arc welding robotic arm 1.

[0031] The material support mechanism 5 includes a lifting block 11, the bottom of which is movably inserted into the workbench 2. A rectangular plate 12 is movably installed above the lifting block 11. Two first semicircular blocks 13 are symmetrically installed on the upper surface of the rectangular plate 12. Two support frames 15 are symmetrically installed at the rear of the workbench 2 by bolts. A second semicircular block 14 is fixedly installed at the top of the support frame 15. The second semicircular block 14 is located above the first semicircular block 13. A stabilizing component is provided at the end of the lifting block 11 near the arc welding robot arm 1. The first semicircular block 13 and the second semicircular block 14 of the material support mechanism 5 form an upper and lower clamping structure. The clamping force of the first semicircular block 13 and the second semicircular block 14 ensures the coaxiality of the metal rod joint and ensures that the metal rod does not shake or shift during the welding process. Combined with the stabilizing component, the lifting block 11 remains horizontal during the lifting process and automatically tilts forward when descending, which can both stably support the welding and smoothly release the workpiece.

[0032] The receiving mechanism 6 includes a sliding plate 27. A waste trough 26 is provided inside the workbench 2 away from the arc welding robot arm 1. The sliding plate 27 is rotatably installed on the top of the waste trough 26. A storage frame 30 is provided at the front end of the workbench 2. The sliding plate 27 of the receiving mechanism 6 is precisely controlled by a stepper motor 32 to achieve efficient classification of qualified and defective parts and reduce manual sorting costs.

[0033] The locking mechanism 4 includes a sliding seat 7. A fixing block 8 is fixedly installed on the front end of the top of the sliding seat 7. A chuck 9 is installed on the adjacent surfaces of the two fixing blocks 8. The two chucks 9 hold metal rods inside. The servo drive component 3 controls the linear motion accuracy of the sliding seat 7 within a preset range through the closed-loop control characteristics of the servo motor and the ball screw transmission, so that the mating ends of the two metal rods are precisely aligned at the micron level. The servo drive component 3 is set at the end above the worktable 2 and near the arc welding robot arm 1. The bottom of the sliding seat 7 cooperates with the servo drive component 3. The servo drive component 3 is connected to the bottom of the sliding seat 7 through a mechanical structure. When the device is started, the control system sends a command to the servo motor. The servo motor converts electrical energy into mechanical energy, which is converted into linear motion of the sliding seat 7 along the guide rail through the rotational motion of the ball screw, thereby driving the entire locking mechanism 4 to move. According to the length, diameter and welding process requirements of the metal rod to be welded, the control system presets the moving distance and speed of the sliding seat 7. The servo drive component 3, with the closed-loop control characteristics of the servo motor, enables the two sliding seats 7 to drive the metal rods they hold to achieve high-precision alignment.

[0034] This device can meet the high precision requirements of metal rod welding and achieve efficient and continuous automated production. It is suitable for mass production scenarios and significantly improves the quality, efficiency and safety of welding operations.

[0035] A cylinder 10 is installed in the middle of the workbench 2. The output end of the cylinder 10 is fixedly connected to the bottom of the lifting block 11. A semi-circular groove 17 is opened on the top of the lifting block 11. An extension column 16 is fixedly installed in the middle of the bottom of the rectangular plate 12. A circular column is set at the bottom of the extension column 16. The circular column is rotatably installed in the semi-circular groove 17 via a rotating shaft. A first spring 18 is connected between the bottom of the rear of the rectangular plate 12 and the top of the rear of the lifting block 11. The first spring 18 is set in an arc shape. Two hollow grooves 19 are symmetrically opened on the surface of the lifting block 11. The stabilizing component includes an L-shaped support plate 20. The bottom of the L-shaped support plate 20 is movably installed in the hollow groove 19. A guide column 21 is set in the hollow groove 19. The guide column 21 movably passes through the bottom of the L-shaped support plate 20. A second spring 22 is installed on the surface of the guide column 21 between the top of the L-shaped support plate 20 and the top of the hollow groove 19. A baffle plate 24 is bolted to the top of the L-shaped support plate 20. A movable chamber is provided between the baffle plate 24 and the L-shaped support plate 20. The rear of the rectangular plate 12 is movably disposed in the movable chamber. A lifting plate 23 is fixedly installed at the bottom of the L-shaped support plate 20. The lifting plate 23 is located in the movable chamber and is directly below the rectangular plate 12. The cylinder 10 inside the workbench 2 provides lifting power to the lifting block 11. After the metal rod to be welded is fixed by the locking mechanism 4 and the two metal rods are connected, the output end of the cylinder 10 extends, pushing the lifting block 11 to move upward, thereby driving the rectangular plate 12 and the first semicircular block 13 above. The components rise synchronously until the arc-shaped surface of the first semicircular block 13 is in contact with the bottom of the metal rod. After welding, the cylinder 10 retracts, and the lifting block 11 drives the relevant components to descend and reset. When the two metal rods are fixed by the locking mechanism 4 and completed docking, the material support mechanism 5 enters the support preparation state. The output end of the cylinder 10 extends, pushing the lifting block 11 to move upward, causing the rectangular plate 12, the first semicircular block 13, and the stabilizing components to rise synchronously. During the rising process, the rear of the rectangular plate 12 is located in the movable chamber formed by the baffle plate 24 and the L-shaped support plate 20. The baffle plate 24 restricts the rear end of the rectangular plate 12 from tilting upward. At the same time, the arc-shaped first spring 18 generates an upward elastic force on the rear end of the rectangular plate 12, which balances the downward pressure of the baffle plate 24, keeping the rectangular plate 12 in a horizontal state. After the lifting block 11 is fully raised, the arc-shaped surface of the first semicircular block 13 fits tightly against the bottom of the metal rod. Together with the second semicircular block 14 above, it forms a stable support for the metal rod, ensuring that there is no shaking at the joint of the metal rod during welding. After welding is completed, the material support mechanism 5 needs to be lowered. The cylinder 10 retracts, driving the lifting block 11, rectangular plate 12, and stabilizing assembly to descend as a whole. Initially, the L-shaped support plate 20 does not contact the worktable 2, the second spring 22 remains in its natural state, and the rectangular plate 12 remains horizontal under the constraint of the baffle plate 24. When the lifting block 11 descends to a certain height, one side of the bottom of the L-shaped support plate 20 contacts the surface of the worktable 2 and can no longer descend with the lifting block 11. As the lifting block 11 continues to descend, the top of the hollow groove 19 compresses the second spring 22.The L-shaped support plate 20 slides upward relative to the lifting block 11. At this time, the rear of the rectangular plate 12 descends with the lifting block 11 within the movable compartment. The obstruction plate 24 no longer obstructs the rear end of the rectangular plate 12. The elastic force of the first spring 18 pushes the rectangular plate 12 to swing forward around the pivot in the semi-circular groove 17. Simultaneously, the lifting plate 23 on the L-shaped support plate 20 pushes the rear end of the rectangular plate 12 from below, assisting its forward tilting. Finally, the rectangular plate 12 is in a forward-tilted state.

[0036] The end of the sliding plate 27 furthest from the arc welding robot arm 1 is connected to the scrap tank 26 via a rotating shaft. A stepper motor 32 is installed on the side of the worktable 2, and the output end of the stepper motor 32 is connected to the rotating shaft at the end of the sliding plate 27. A groove 31 is formed inside the scrap tank 26 near the end of the arc welding robot arm 1. Multiple rectangular grooves 28 are evenly formed on the surface of the sliding plate 27. Side plates 29 are fixedly installed on both sides of the sliding plate 27. The stepper motor 32 is connected to the rotating shaft at the end of the sliding plate 27 via its output end, which can precisely control the rotation angle of the sliding plate 27. When the welded metal rod is pushed onto the sliding plate 27, the stepper motor drives the sliding plate 27 to rotate upward to a preset angle, and the metal rod is guided along the plate by gravity. The workpiece slides into the storage box 30 at the front end of the worktable 2 to collect finished products. If waste needs to be processed, the stepper motor 32 can drive the sliding plate 27 to rotate downwards, aligning it with the opening of the waste trough 26, so that the waste (such as welded defective parts) falls into the groove 31 at the end of the waste trough 26 near the arc welding robot arm 1. The groove 31 guides the waste to completely enter the interior of the waste trough 26, realizing the classified collection of waste and qualified parts. The multiple rectangular grooves 28 on the surface of the sliding plate 27 can reduce the contact area between the workpiece and the plate surface, reduce frictional resistance, and make the workpiece slide more smoothly along the sliding plate 27. The side plates 29 on both sides form lateral constraints to prevent the workpiece from falling off the sides of the plate during the sliding process, ensuring the stability of the conveying.

[0037] A welding space is provided on the surface of the rectangular plate 12 and between the two first semicircular blocks 13. A protective plate 25 is fixedly installed at one end of the welding space near the arc welding robot arm 1. When the arc welding robot arm 1 welds the joint of the metal rod, the welding operation is mainly completed in this space. At the same time, the protective plate 25 fixedly installed at one end of the welding space near the arc welding robot arm 1 will physically shield the spatter, arc light and other debris on the working side of the robot arm during the welding process.

[0038] The length of the storage box 30 is the same as the length of the workbench 2, and the height of the storage box 30 is lower than that of the workbench 2. The design of the length being the same as that of the workbench 2 can adapt to the processing rhythm and material demand of the workbench 2, ensuring that the storage box can hold a sufficient number of materials to be processed, reducing the number of times to replenish materials, and improving continuous operation capability. The design of the height being lower than that of the workbench 2 makes it easier and more convenient for operators to pick up and put down materials, reducing wasted actions and improving efficiency.

[0039] Working principle: First, the operator or automatic feeding equipment places two metal rods to be welded into two symmetrical locking mechanisms 4. One end of the metal rod is embedded in the chuck 9, which is axially fixed by clamping force. At this time, the sliding seat 7 is in the initial position, and the two metal rods are not yet aligned, awaiting subsequent alignment and adjustment. The control system presets the parameters of the servo drive component 3 according to the length, diameter, and welding process requirements of the metal rods to be welded. The servo motor of the servo drive component 3 starts, converting electrical energy into mechanical energy. Through the ball screw, the rotational motion is converted into linear motion of the sliding seat 7 along the guide rail, driving the two locking mechanisms 4 to move synchronously. Finally, the mating ends of the two metal rods are precisely aligned, preparing for welding. The metal rods will be locked into the second semicircular block 1. In the arc-shaped groove of 4, the output end of the cylinder 10 inside the workbench 2 extends, pushing the lifting block 11 to move upward, simultaneously driving the upper rectangular plate 12, the first semicircular block 13, and the stabilizing component to rise. During the rising process, the rear of the rectangular plate 12 is in the movable chamber formed by the baffle plate 24 and the L-shaped support plate 20. The baffle plate 24 restricts the rear end of the rectangular plate 12 from tilting upward. At the same time, the arc-shaped first spring 18 generates an upward elastic force on the rear end of the rectangular plate 12, which balances with the downward pressure of the baffle plate 24, keeping the rectangular plate 12 horizontal. The lifting block 11 continues to rise until the arc-shaped surface of the first semicircular block 13 is in contact with the bottom of the metal rod. Together with the second semicircular block 14 fixed by the upper support frame 15, it forms a stable support for the metal rod by clamping it from the top and bottom, ensuring that the welding is performed correctly. There is no shaking at the joint. The welding space on the surface of the rectangular plate 12 provides an operating area for welding. The protective plate 25 near one end of the arc welding robot arm 1 physically shields the spatter and arc light during welding, protecting the equipment and the environment. The welding head of the arc welding robot arm 1 extends into the welding space to perform arc welding on the joint ends of the two metal rods. The entire process is completed under the stable support of the material support mechanism 5 to ensure welding accuracy. After welding, the clamping force of the chucks 9 at both ends is contacted, and the locking mechanism 4 is moved to both sides of the worktable 2 through the servo drive component 3. The output end of the cylinder 10 retracts, driving the lifting block 11, the rectangular plate 12, and the stabilizing component to descend as a whole. The metal rods will always be supported by the first semicircular block 13 due to their own weight. Initially, the L-shaped support plate 20 is not in contact with the workpiece. Platform 2, with the second spring 22 remaining in its natural state, and the rectangular plate 12 still horizontal under the constraint of the baffle plate 24, when the lifting block 11 descends to a certain height, the top of the metal rod completely detaches from the second semicircular block 14, and the bottom of the L-shaped support plate 20 contacts the surface of the workbench 2, unable to descend further. The lifting block 11 continues to descend, and the metal rod continues to move downward by the first semicircular block 13. The top of the hollow groove 19 compresses the second spring 22, and the L-shaped support plate 20 slides upward relative to the lifting block 11. At this time, the baffle plate 24 no longer blocks the rear end of the rectangular plate 12, and the elastic force of the first spring 18 pushes the rectangular plate 12 to swing forward around the pivot in the semicircular groove 17. At the same time, the lifting plate 23 pushes the rear end of the rectangular plate 12 from below, assisting it to tilt forward. Finally, the rectangular plate 12 is in a forward-tilted state.The metal rod moves towards the receiving mechanism 6 under its own weight. If it is a qualified part, the stepper motor 32 drives the sliding plate 27 to rotate upward to a preset angle. Under the action of gravity, the metal rod slides along the surface of the sliding plate 27 and finally slides into the storage frame 30 at the front end of the worktable 2. If it is a defective part, the stepper motor 32 drives the sliding plate 27 downward to rotate, aligning it with the opening of the waste trough 26. The waste falls along the sliding plate 27 into the groove 31 of the waste trough 26 and is guided by the groove 31 into the interior of the waste trough 26, thus achieving the classification of finished products and waste.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. An automated arc welding device for metal rods, comprising an arc welding robotic arm (1) and a worktable (2), characterized in that, The output end of the arc welding robot arm (1) is provided with an arc welding head. The arc welding robot arm (1) is installed behind the workbench (2). Two locking mechanisms (4) are symmetrically installed on the upper part of the workbench (2) and near the end of the arc welding robot arm (1). A material support mechanism (5) is provided in the middle of the workbench (2). A material receiving mechanism (6) is provided on the upper part of the workbench (2) and away from the end of the arc welding robot arm (1). The material support mechanism (5) includes a lifting block (11). The bottom of the lifting block (11) is movably inserted into the workbench (2). A rectangular plate (12) is movably installed on the upper part of the lifting block (11). Two first semicircular blocks (13) are symmetrically installed on the upper surface of the rectangular plate (12). Two support frames (15) are symmetrically installed behind the workbench (2) by bolts. A second semicircular block (14) is fixedly installed at the top of the support frame (15). The second semicircular block (14) is located above the first semicircular block (13). A stabilizing component is provided at one end of the lifting block (11) near the arc welding robot arm (1). A cylinder (10) is provided in the middle of the workbench (2). The output end of the cylinder (10) is fixedly connected to the bottom of the lifting block (11). A semicircular groove (17) is opened at the top of the lifting block (11). The rectangular plate (12) An extension column (16) is fixedly installed at the middle of the bottom of the rectangular plate (12). A circular column is provided at the bottom of the extension column (16). The circular column is rotatably installed in the semi-circular groove (17) through a rotating shaft. A first spring (18) is connected between the bottom of the rectangular plate (12) and the top of the lifting block (11). The first spring (18) is set in an arc shape. Two hollow grooves (19) are symmetrically opened on the surface of the lifting block (11). The stabilizing component includes an L-shaped support plate (20). The bottom of the L-shaped support plate (20) is movably installed inside the hollow groove (19). A guide column (21) is provided inside the hollow groove (19). 1) The bottom of the L-shaped support plate (20) is connected to the guide column (21) and a second spring (22) is provided between the top of the L-shaped support plate (20) and the top of the hollow groove (19). A cover plate (24) is installed on the top of the L-shaped support plate (20) by bolts. An active compartment is provided between the cover plate (24) and the L-shaped support plate (20). The rear of the rectangular plate (12) is movably disposed in the active compartment. A lifting plate (23) is fixedly installed on the bottom of the L-shaped support plate (20). The lifting plate (23) is located in the active compartment and is located directly below the rectangular plate (12).

2. The automated arc welding device for metal rods according to claim 1, characterized in that, The locking mechanism (4) includes a sliding seat (7), a fixing block (8) is fixedly installed at the front end of the top of the sliding seat (7), chucks (9) are installed on the adjacent surfaces of the two fixing blocks (8), and metal rods are clamped inside the two chucks (9). A servo drive assembly (3) is provided above the worktable (2) and at one end near the arc welding robot arm (1), and the bottom of the sliding seat (7) cooperates with the servo drive assembly (3).

3. The automated arc welding device for metal rods according to claim 1, characterized in that, The receiving mechanism (6) includes a sliding plate (27). A waste trough (26) is provided inside the worktable (2) away from the arc welding robot arm (1). The sliding plate (27) is rotatably mounted on the top of the waste trough (26). A storage frame (30) is provided at the front end of the worktable (2). The end of the sliding plate (27) away from the arc welding robot arm (1) is connected to the waste trough (26) through a rotating shaft. A stepper motor (32) is provided on the side of the worktable (2). The output end of the stepper motor (32) is connected to the rotating shaft at the end of the sliding plate (27). A groove (31) is provided inside the waste trough (26) near the end of the arc welding robot arm (1).

4. The automated arc welding device for metal rods according to claim 3, characterized in that, The surface of the sliding plate (27) is uniformly provided with multiple rectangular grooves (28), and side plates (29) are fixedly installed on both sides of the sliding plate (27).

5. The automated arc welding device for metal rods according to claim 4, characterized in that, A welding space is provided on the surface of the rectangular plate (12) and between the two first semicircular blocks (13), and a protective plate (25) is fixedly installed on one end of the welding space near the end of the arc welding robot arm (1).

6. The automated arc welding device for metal rods according to claim 3, characterized in that, The length of the storage box (30) is the same as the length of the workbench (2), and the height of the storage box (30) is lower than that of the workbench (2).

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