A long arm welder structure

Abstract

The utility model belongs to welding technical field, specifically is a long arm welding machine structure, including the tracked vehicle, the bottom fixed mounting of tracked vehicle has motor no.

Description

Technical Field

[0001] This utility model belongs to the field of welding technology, specifically a long-arm welding machine structure. Background Technology

[0002] Long-arm welding machines are welding equipment specifically designed for welding deep cavities, long distances, or specially shaped workpieces. They are widely used in metal processing, automobile manufacturing, pipeline welding, and other fields. Depending on the welding method, long-arm welding machines are mainly classified into spot welding machines, seam welding machines, and welding robots.

[0003] A search revealed a Chinese patent (authorization announcement number CN 210967595 U) disclosing a telescopic welding arm. This patented technology includes a support column, with a rotary motor welded to its top. A rotating assembly is located at the top of the rotary motor. A support arm is welded to one outer wall of the top of the rotating assembly, and an ear is welded to the outer wall of the other end of the support arm away from the rotating assembly. A hydraulic cylinder is welded inside the ear, and a positioning seat is welded to the outer wall of the output end of the hydraulic cylinder. A welding arm is movably connected inside the positioning seat, and a positioning assembly is located at the other end of the welding arm away from the hydraulic cylinder. This utility model's roller column makes the moving platform more stable and reliable during movement, thereby improving welding accuracy. It features a simple structure, convenient operation, strong practicality, and operational flexibility, reducing the welding labor intensity of operators. It effectively achieves the advantages of multi-point welding, offering accuracy, speed, high automation, long service life, and a reasonable structure, making it worthy of promotion.

[0004] Most existing long-arm welding machines are either immobile or have a limited range of motion. When welding large workpieces, the extension and retraction of the welding machine alone cannot allow the welding torch to contact all the weld seams on the workpiece, requiring manual movement, which is inconvenient. Furthermore, after the arm carrying the welding torch extends a considerable length, the extension arm will sag due to gravity, causing the welding torch to deviate and compromising welding accuracy. Therefore, this utility model provides a long-arm welding machine structure. Utility Model Content

[0005] To overcome the shortcomings of existing technologies and solve the problem that when welding some large workpieces, the extension and retraction of the welding machine alone cannot allow the welding torch head to contact all the weld seams on the workpiece, requiring manual movement, which is inconvenient, and that after the arm carrying the welding torch head extends a long distance, the telescopic arm will sag due to gravity, causing the welding torch to deviate and the welding accuracy cannot be guaranteed, this utility model proposes a long-arm welding machine structure.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The long-arm welding machine structure of this utility model includes a tracked vehicle. A motor is fixedly installed at the bottom of the tracked vehicle. A turntable is rotatably connected to the top of the tracked vehicle. The output shaft of the motor passes through the tracked vehicle and is fixedly connected to the middle of the turntable. A bracket is symmetrically fixedly connected to the top of the turntable. A rotating arm is rotatably connected between the two brackets. A rotating arm is rotatably connected to the side of the rotating arm away from the bracket. A mounting base is fixedly installed on the side of the rotating arm away from the rotating arm. A hollow arm is fixedly connected to the side of the mounting base away from the rotating arm. A telescopic arm is slidably connected inside the hollow arm. A welding torch head is fixedly installed on the side of the telescopic arm away from the hollow arm.

[0007] Preferably, a second motor is fixedly mounted on the side of the mounting base near the hollow arm. A first sprocket is symmetrically rotatably connected to the end of the hollow arm near the mounting base. The two sprockets are coaxially fixedly connected. The output shaft of the second motor is coaxially fixedly connected to the two sprockets. A chain is fitted on the surface of each of the two first sprockets. A second sprocket is symmetrically rotatably connected to the end of the hollow arm away from the first sprocket. The sides of the two chains away from the first sprocket are fitted onto the second sprocket. The first sprocket and the second sprocket are connected by chain drive. The side of the hollow arm near the second sprocket has four symmetrical slots. A pulley is rotatably connected inside each of the four slots.

[0008] Preferably, the four pulleys are in rolling connection with the outer wall of the telescopic arm.

[0009] Preferably, the hollow arm is symmetrically rotatably connected to a gear on the side near the second sprocket, and the two gears are respectively coaxially fixedly connected to the two second sprockets. The telescopic arm is symmetrically fixedly connected to racks on both sides, and the two gears are respectively meshed with the two racks.

[0010] Preferably, a rotating frame is fixedly connected to the side of the mounting base near the hollow arm, and a winding shaft is rotatably connected inside the rotating frame. A steel wire rope is wound around the surface of the winding shaft, and one end of the steel wire rope is fixedly connected to the winding shaft. A fixing frame is symmetrically fixedly connected to the end of the telescopic arm away from the hollow arm, and a collar is fitted on both fixing frames. The end of the steel wire rope away from the winding shaft is fixedly connected to the collar.

[0011] Preferably, the sprocket on the side of the hollow arm away from the motor is coaxially fixedly connected to a pulley, and the winding shaft is coaxially fixedly connected to a pulley. The surfaces of the pulleys are covered with belts, and the pulleys are connected by belt drive.

[0012] Preferably, a receiver is fixedly installed on one side of the bracket, and the receiver is connected to a remote control.

[0013] The beneficial effects of this utility model are as follows: 1. The long-arm welding machine structure described in this utility model, through the setting of the tracked vehicle, can drive the structure on its top to move when the tracked vehicle is started, so that the long-arm welding machine structure can move freely, making it convenient to move back and forth to weld the weld seams at different positions of the workpiece to be welded. The telescopic arm can extend and retract inside the hollow arm, so that when the welding torch head cannot contact the weld seam on the top or inside of the workpiece, the telescopic arm can drive the welding torch head to extend out of the hollow arm, extending the length of the hollow arm and the telescopic arm, so that the welding torch head can weld the weld seam on the top or inside of the workpiece that is difficult to weld.

[0014] 2. The long-arm welding machine structure described in this utility model, through the setting of gears and racks, can drive the telescopic arm to extend outward from the hollow arm under the cooperation of two racks, thereby increasing the length of the hollow arm and the telescopic arm, and welding the weld seam at a position farther away from the tracked vehicle. At the same time as the telescopic arm extends out of the hollow arm, four pulleys support the four hollow arms of the telescopic arm, so that the telescopic arm will not deviate during the process of extending out of the hollow arm and will remain concentric with the hollow arm, thereby ensuring the welding accuracy.

[0015] 3. The long-arm welding machine structure described in this utility model, through the setting of the steel wire rope, generates a pulling effect on the top of the telescopic arm under the action of the taut steel wire rope, distributing the weight of the telescopic arm and thus preventing the telescopic arm from sagging. Furthermore, the length of the steel wire rope released by the winding shaft is the same as the length of the telescopic arm extension. When the motor stops and the telescopic arm stops extending, the winding shaft stops rotating synchronously and no longer releases the steel wire rope. This ensures that the steel wire rope always maintains a pulling effect on the telescopic arm, which helps to improve the welding accuracy of the welding torch head. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of the present invention; Figure 2 This is a bottom view of the present invention; Figure 3 This is a schematic diagram of the hollow arm and telescopic arm structure of this utility model; Figure 4 This is a utility model Figure 3 Enlarged view of point A in the middle; Figure 5 This is a utility model Figure 3 Enlarged view of point B in the middle; Figure 6 This is a schematic diagram of the gear and gear structure of this utility model; Figure 7This is a schematic diagram of the sprocket and pulley structure of this utility model; In the picture: 1. Tracked vehicle; 11. Motor 1; 12. Turntable; 13. Support frame; 14. Rotating arm 1; 15. Rotating arm 2; 16. Mounting base; 17. Hollow arm; 18. Telescopic arm; 19. Welding torch head; 2. Motor II; 21. Sprocket I; 22. Chain; 23. Sprocket II; 24. Slotted; 25. Pulley; 26. Gear; 27. Rack; 3. Rotating frame; 31. Rewinding shaft; 32. Wire rope; 33. Fixing frame; 34. Collar; 35. Pulley 1; 36. Pulley 2; 4. Receiver. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] like Figures 1 to 7 As shown, this utility model provides a technical solution including a tracked vehicle 1. A motor 11 is fixedly installed at the bottom of the tracked vehicle 1. A turntable 12 is rotatably connected to the top of the tracked vehicle 1. The output shaft of the motor 11 passes through the tracked vehicle 1 and is fixedly connected to the middle of the turntable 12. A bracket 13 is symmetrically fixedly connected to the top of the turntable 12. A rotating arm 14 is rotatably connected between the two brackets 13. A rotating arm 15 is rotatably connected to the side of the rotating arm 14 away from the bracket 13. A mounting base 16 is fixedly installed on the side of the rotating arm 15 away from the rotating arm 14. A hollow arm 17 is fixedly connected to the side of the mounting base 16 away from the rotating arm 15. A telescopic arm 18 is slidably connected inside the hollow arm 17. A welding torch head 19 is fixedly installed on the side of the telescopic arm 18 away from the hollow arm 17.

[0020] Through the above technical solution, when the tracked vehicle 1 starts, it can drive the structure on top to move, so that the long-arm welding machine structure can move freely without manual handling, making it easy to move back and forth to weld the welds at different positions of the workpiece. When the motor 11 starts, it can drive the turntable 12 on the output end to rotate, thereby driving the long-arm welding machine structure to rotate. The rotating arm 14 and the rotating arm 2 15 can drive the hollow arm 17, the telescopic arm 18 and the welding gun head 19 to adjust their angles, thereby increasing the welding range that the welding gun head 19 can weld, making it easier to weld larger workpieces. The telescopic arm 18 can extend and retract inside the hollow arm 17, so that when the welding gun head 19 cannot contact the weld on the top or inside of the workpiece, the telescopic arm 18 can drive the welding gun head 19 to extend out of the hollow arm 17, extending the length of the hollow arm 17 and the telescopic arm 18, so that the welding gun head 19 can weld the welds on the top or inside of the workpiece that are difficult to weld.

[0021] Specifically, a second motor 2 is fixedly mounted on the side of the mounting base 16 near the hollow arm 17. A first sprocket 21 is symmetrically rotatably connected to the end of the hollow arm 17 near the mounting base 16. The two first sprockets 21 are coaxially fixedly connected. The output shaft of the second motor 2 is coaxially fixedly connected to the two first sprockets 21. A chain 22 is fitted onto the surface of each of the two first sprockets 21. A second sprocket 23 is symmetrically rotatably connected to the end of the hollow arm 17 away from the first sprockets 21. The sides of the two chains 22 away from the first sprockets 21 are fitted onto the second sprocket 23. The first sprocket 21 and the second sprocket 23 are connected by chains. 22. Transmission connection: Hollow arm 17 has four symmetrical slots 24 on the side near sprocket 23. Pulleys 25 are rotatably connected inside the four slots 24. The four pulleys 25 are rotatably connected to the outer wall of telescopic arm 18. Gears 26 are symmetrically rotatably connected on the side of hollow arm 17 near sprocket 23. The gears 26 are located on the inner wall of hollow arm 17. Two gears 26 are coaxially fixedly connected to two sprockets 23 respectively. Racks 27 are symmetrically fixedly connected on both sides of telescopic arm 18. Two gears 26 are meshed with two racks 27 respectively.

[0022] Through the above technical solution, when motor 2 starts, motor 2 drives two sprockets 21 to rotate, which in turn drives sprocket 23 to rotate via chain 22. When sprocket 23 rotates, it drives gear 26, which is coaxially fixed to it, to rotate. This causes gear 26 to mesh with rack 27, pushing rack 27 outward from hollow arm 17. Under the action of the two racks 27, telescopic arm 18 extends outward from hollow arm 17, increasing the length of hollow arm 17 and telescopic arm 18. This allows for welding of the weld seam further away from tracked vehicle 1. As telescopic arm 18 extends outward from hollow arm 17, four pulleys 25 support it from the four outer walls of telescopic arm 18, ensuring that telescopic arm 18 does not deviate during its extension and remains concentric with hollow arm 17, thus guaranteeing welding accuracy.

[0023] Specifically, a rotating frame 3 is fixedly connected to the side of the mounting base 16 near the hollow arm 17. A winding shaft 31 is rotatably connected inside the rotating frame 3. A steel wire rope 32 is wound around the surface of the winding shaft 31. One end of the steel wire rope 32 is fixedly connected to the winding shaft 31. A fixing frame 33 is symmetrically fixedly connected to the end of the telescopic arm 18 away from the hollow arm 17. A collar 34 is fitted on both fixing frames 33. The end of the steel wire rope 32 away from the winding shaft 31 is fixedly connected to the collar 34. A pulley 35 is coaxially fixedly connected to the sprocket 21 on the side of the hollow arm 17 away from the motor 2. A pulley 36 is coaxially fixedly connected to the winding shaft 31. A belt is fitted on the surface of pulley 35 and pulley 36. The pulleys 35 and 36 are connected by belt drive.

[0024] Through the above technical solution, the wire rope 32 is wound around the winding shaft 31, with one end of the wire rope 32 fixedly connected to the winding shaft 31 and the other end fixedly connected to the telescopic arm 18 through the fixing bracket 33 and the collar 34. Thus, under the tension of the wire rope 32, a pulling effect is generated on the top of the telescopic arm 18, distributing the weight of the telescopic arm 18 and preventing it from sagging. When the motor 2 starts and drives the sprocket 21 to rotate, causing the telescopic arm 18 to extend from the hollow arm 17, the sprocket 21 simultaneously drives the pulley. When motor 2 rotates, pulley 35 drives pulley 36 to rotate via belt. Pulley 36 then drives take-up shaft 31 to rotate, releasing wire rope 32. The length of wire rope 32 released by take-up shaft 31 is the same as the length of the telescopic arm 18. When motor 2 stops, causing the telescopic arm 18 to stop extending, take-up shaft 31 stops rotating synchronously and stops releasing wire rope 32. This ensures that wire rope 32 always maintains a pulling effect on telescopic arm 18, which helps improve the welding accuracy of welding torch head 19.

[0025] Specifically, a receiver 4 is fixedly installed on one side of the bracket 13. The receiver 4 is connected to a remote control and is electrically connected to the tracked vehicle 1, motor 11, rotating arm 14, rotating arm 2 15, welding torch head 19 and motor 2.

[0026] Through the above technical solution, the tracked vehicle 1, motor 11, rotating arm 14, rotating arm 2 15, welding torch head 19 and motor 2 can be controlled by a remote control.

[0027] In operation, the tracked vehicle 1 is started, moving the long-arm welding machine structure on its top. When the tracked vehicle 1 moves close to the workpiece to be welded, motor 11 starts, driving the turntable 12 on the output end to rotate, thereby rotating the long-arm welding machine structure. Rotating arm 14 and rotating arm 25 can adjust the angle of the hollow arm 17, telescopic arm 18, and welding torch 19, thereby increasing the welding range that the welding torch 19 can weld. When the welding torch 19 cannot reach the top or internal weld seam of the workpiece, motor 22 starts, driving two sprockets 11 to rotate. These sprockets 11, through chain 22, drive sprocket 23 to rotate. When sprocket 23 rotates, it drives the gear 26, which is coaxially fixed to it, to rotate. This causes the gear 26, in meshing with rack 27, to push rack 27 outward from the hollow arm 17. Under the action of the two racks 27, the telescopic arm 18 extends outward from the hollow arm 17, allowing the hollow arm 17 to reach the weld seam. The increased length of boom 7 and telescopic boom 18 allows for welding of seams further away from tracked vehicle 1. As boom 18 extends beyond hollow boom 17, four pulleys 25 support it from its four outer walls, preventing it from shifting and ensuring it remains concentric with boom 17. Simultaneously with motor 2 starting and rotating sprocket 21, as boom 18 extends beyond hollow boom 17, sprocket 21 synchronously rotates pulley 35, causing the pulley... Motor 35 drives pulley 36 to rotate via belt, which in turn drives take-up shaft 31 to rotate, releasing wire rope 32. The length of wire rope 32 released by take-up shaft 31 is the same as the length of the telescopic arm 18. When motor 2 stops and the telescopic arm 18 stops extending, take-up shaft 31 stops rotating synchronously and no longer releases wire rope 32. This ensures that wire rope 32 always maintains a pulling effect on telescopic arm 18, which helps improve the welding accuracy of welding torch head 19.

[0028] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A long-arm welding machine structure, characterized in that, The system includes a tracked vehicle (1), a motor (11) fixedly mounted on the bottom of the tracked vehicle (1), a turntable (12) rotatably connected to the top of the tracked vehicle (1), the output shaft of the motor (11) passing through the tracked vehicle (1) and fixedly connected to the middle of the turntable (12), a bracket (13) symmetrically fixedly connected to the top of the turntable (12), a rotating arm (14) rotatably connected between the two brackets (13), a rotating arm (15) rotatably connected to the side of the rotating arm (14) away from the bracket (13), a mounting base (16) fixedly mounted on the side of the rotating arm (15) away from the rotating arm (14), a hollow arm (17) fixedly connected to the side of the mounting base (16) away from the rotating arm (15), a telescopic arm (18) slidably connected inside the hollow arm (17), and a welding torch head (19) fixedly mounted on the side of the telescopic arm (18) away from the hollow arm (17).

2. The structure of a long-arm welding machine according to claim 1, characterized in that, A motor 2 is fixedly mounted on the side of the mounting base (16) near the hollow arm (17). A sprocket 1 (21) is symmetrically rotatably connected to one end of the hollow arm (17) near the mounting base (16). The two sprockets 1 (21) are coaxially fixedly connected. The output shaft of the motor 2 (2) is coaxially fixedly connected to the two sprockets 1 (21). A chain (22) is fitted onto the surface of each of the two sprockets 1 (21). The hollow arm (17) is located away from the sprockets 1 (21). One end of 21) is symmetrically connected to a sprocket two (23). The two chains (22) are both sleeved on the side away from the sprocket one (21). The sprocket one (21) and the sprocket two (23) are connected by the chain (22). The hollow arm (17) is symmetrically provided with slots (24) on the side close to the sprocket two (23). There are four slots (24) in total. The four slots (24) are rotatably connected to pulleys (25).

3. The long-arm welding machine structure according to claim 2, characterized in that, The four pulleys (25) are rolled to the outer wall of the telescopic arm (18).

4. The long-arm welding machine structure according to claim 3, characterized in that, The hollow arm (17) is symmetrically connected to a gear (26) on the side near the sprocket (23). The two gears (26) are coaxially fixedly connected to the two sprockets (23) respectively. The telescopic arm (18) is symmetrically fixedly connected to racks (27) on both sides. The two gears (26) are meshed with the two racks (27) respectively.

5. The structure of a long-arm welding machine according to claim 4, characterized in that, The mounting base (16) is fixedly connected to a rotating frame (3) on the side near the hollow arm (17). A winding shaft (31) is rotatably connected inside the rotating frame (3). A steel wire rope (32) is wound around the surface of the winding shaft (31). One end of the steel wire rope (32) is fixedly connected to the winding shaft (31). A fixing frame (33) is symmetrically fixedly connected to the end of the telescopic arm (18) away from the hollow arm (17). A collar (34) is fitted on both fixing frames (33). The end of the steel wire rope (32) away from the winding shaft (31) is fixedly connected to the collar (34).

6. The structure of a long-arm welding machine according to claim 5, characterized in that, The sprocket 1 (21) on the side of the hollow arm (17) away from the motor 2 (2) is coaxially fixedly connected to the pulley 1 (35), and the winding shaft (31) is coaxially fixedly connected to the pulley 2 (36). The surfaces of the pulley 1 (35) and the pulley 2 (36) are covered with a belt, and the pulley 1 (35) and the pulley 2 (36) are connected by belt drive.

7. The structure of a long-arm welding machine according to claim 1, characterized in that, A receiver (4) is fixedly installed on one side of the bracket (13), and the receiver (4) is connected to a remote control.

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