A wire feeding device for welding robots

Abstract

This utility model discloses a welding wire feeding device for a welding robot, relating to the field of welding robot technology. It includes a U-shaped base, a column fixedly mounted on one side of the upper part of the U-shaped base, a sliding sleeve slidably mounted on the column, and a U-shaped frame fixedly mounted on one side of the sliding sleeve. The two ends of the U-shaped frame can be detachably connected to a welding wire hopper. A pair of straight wheels are fixedly mounted below the two ends of the U-shaped base. A caster is fixedly mounted below the column on the U-shaped base. A welding wire driving assembly is located at the upper end of the column. This device can drive the U-shaped frame to rise or fall via the sliding sleeve. The welding wire hopper can be lifted by connecting the hook on the U-shaped frame to the welding wire hopper, allowing it to leave the ground. The straight wheels and caster can push the device to move, thereby moving the welding wire hopper. The welding wire is clamped by pressure rollers and support rollers. Power is transmitted to the support rollers via a worm gear mechanism. The self-locking function between the worm gear and worm prevents the welding wire from being pulled back into the welding wire hopper.

Description

Technical Field

[0001] This utility model relates to the field of welding robot technology, specifically to a welding wire feeding device for welding robots. Background Technology

[0002] Welding wire is a metal wire used as filler metal or as a conductor for welding. It is mainly packaged in coils and drums. Since the capacity of coiled welding wire is small, drum-packaged welding wire is usually used on welding robot production lines to reduce the frequency of welding wire replacement.

[0003] However, existing technologies face the following problems when using drum-type welding wire: the overall weight of the drum-type welding wire is relatively heavy and difficult to move, and it is inconvenient to replace the welding wire drum. When the feeding stops, the welding wire is easily pulled back into the welding wire drum, causing the originally regularly wound welding wire in the drum to lose tension, resulting in the welding wire in the drum becoming disordered and affecting its use. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a wire feeding device for welding robots, thereby solving the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a welding wire feeding device for a welding robot, comprising a U-shaped base, a column fixedly installed on one side of the upper part of the U-shaped base, a sliding sleeve slidably installed on the column, a U-shaped frame fixedly installed on one side of the sliding sleeve, the two ends of the U-shaped frame being detachably connected to the welding wire hopper, a pair of straight wheels fixedly installed below the two ends of the U-shaped base, a universal wheel fixedly installed below the column on the U-shaped base, and a welding wire driving assembly provided at the upper end of the column.

[0006] Preferably, the welding wire drive assembly includes a mounting plate fixedly mounted on the upper end of the column. Multiple support rollers are rotatably mounted on the front side of the mounting plate, and a pressure roller, offset from the support rollers, is also rotatably mounted on the front side of the mounting plate. The pressure rollers can press the welding wire onto the support rollers. Each support roller is connected to a worm gear via a shaft. A rotating shaft is mounted on the rear side of the mounting plate, and multiple worms capable of meshing with the worm gears are mounted on the rotating shaft. A motor for driving the rotating shaft to rotate is fixedly mounted on the rear side of the mounting plate.

[0007] Preferably, a threaded rod is rotatably provided on one side of the column, the threaded rod is threadedly connected to the sliding sleeve, and a second motor for driving the threaded rod to rotate is fixedly provided on the column.

[0008] Preferably, both ends of the U-shaped frame are connected to iron chains, and the ends of the iron chains are connected to hooks that can be hung on the handle of the welding wire drum.

[0009] Preferably, the inner surface of the U-shaped seat is provided with a groove, and a support plate is inserted into the groove.

[0010] Preferably, the upper surface of the tray is lower than the upper surface of the U-shaped seat, and a baffle is fixedly provided on the upper surface of the tray near the opening end of the U-shaped seat.

[0011] Beneficial effects

[0012] This utility model provides a welding wire feeding device for welding robots, which has the following advantages: The device can drive the U-shaped frame to rise or fall through the sliding sleeve. The welding wire hopper can be lifted by the hook on the U-shaped frame, so that the welding wire hopper can be lifted off the ground. The device can be moved by the straight wheel and the universal wheel, thereby realizing the movement of the welding wire hopper. By placing the welding wire hopper on the pallet, the bottom of the welding wire hopper can be supported, and the bottom of the welding wire hopper can be lifted off the ground to prevent the welding wire inside the welding wire hopper from rusting due to ground moisture. The welding wire is clamped by the pressure roller and the support roller. The power is transmitted to the support roller through the worm gear mechanism. Since the worm gear and the worm have a self-locking function, the welding wire can be prevented from being pulled back into the welding wire hopper. Attached Figure Description

[0013] Figure 1 This is the front view of the present invention;

[0014] Figure 2 Rear view of the welding wire drive assembly;

[0015] Figure 3 This is a top view of the U-shaped base.

[0016] In the diagram: 1. U-shaped base; 2. Column; 3. Sliding sleeve; 4. U-shaped frame; 5. Iron chain; 6. Hook; 7. Threaded rod; 8. Motor II; 9. Straight wheel; 10. Universal wheel; 11. Mounting plate; 12. Support roller; 13. Pressure roller; 14. Worm gear; 15. Shaft; 16. Worm; 17. Motor I; 18. Groove; 19. Support plate; 20. Stop bar. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0018] Please see Figures 1-3This utility model provides a technical solution: a welding wire feeding device for a welding robot, including a U-shaped base 1, a column 2 fixedly installed on one side of the upper part of the U-shaped base 1, a sliding sleeve 3 slidably installed on the column 2, a U-shaped frame 4 fixedly installed on one side of the sliding sleeve 3, the two ends of the U-shaped frame 4 can be detachably connected to the welding wire hopper, and the welding wire hopper can be driven to rise or fall by moving the U-shaped frame 4 up and down, a pair of straight wheels 9 fixedly installed below the two ends of the U-shaped base 1, and a universal wheel 10 fixedly installed below the column 2 of the U-shaped base 1, the device can be moved by the pair of straight wheels 9 and the universal wheel 10, both of which are self-locking pulleys, and a welding wire driving assembly is provided at the upper end of the column 2.

[0019] In one embodiment of this utility model, the welding wire drive assembly includes a mounting plate 11 fixedly mounted on the upper end of the column 2. Multiple support rollers 12 are rotatably mounted on the front side of the mounting plate 11, and pressure rollers 13 are also rotatably mounted on the front side of the mounting plate 11, offset from the support rollers 12. The pressure rollers 13 press the welding wire firmly onto the support rollers 12. The welding wire is wavy between the support rollers 12 and the pressure rollers 13, and its own elasticity allows it to adhere tightly to the pressure rollers 13, ensuring effective transmission of the welding wire by the support rollers 12. Each support roller 12 is connected by a shaft. A worm gear 14 is connected to the mounting plate 11, and a rotating shaft 15 is provided on the rear side of the mounting plate 11. Multiple worms 16 that can mesh with the worm gear 14 are provided on the rotating shaft 15. A motor 17 that drives the rotating shaft 15 to rotate is fixedly installed on the rear side of the mounting plate 11. By starting the motor 17, the support roller 12 is rotated, and the support roller 12 feeds the welding wire. Since the worm gear 14 and the worm 15 have a self-locking function, the worm gear 14 cannot drive the worm 15. Therefore, the welding wire cannot move when the motor 17 is not started, ensuring that the welding wire will not be pulled back into the welding wire hopper.

[0020] As an embodiment of this utility model, a threaded rod 7 is rotatably provided on one side of the column 2. The threaded rod 7 is threadedly connected to the sliding sleeve 3. A motor 8 is fixedly provided on the column 2 to drive the threaded rod 7 to rotate. By starting the motor 8, the threaded rod 7 can be driven to rotate, thereby driving the sliding sleeve 3 to move up and down, so as to realize the up and down movement of the welding wire drum.

[0021] As an embodiment of this utility model, both ends of the U-shaped frame 4 are connected to iron chains 5, and the ends of the iron chains 5 are connected to hooks 6. The hooks 6 can be hung on the handle of the welding wire drum for easy disassembly.

[0022] As an embodiment of this utility model, the inner surface of the U-shaped seat 1 is provided with a groove 18, and a support plate 19 is inserted into the groove 18. After the welding wire canister is lifted up, the support plate 19 can be inserted into the groove 18. By controlling the descent of the welding wire canister, it can be placed on the support plate 19 to support the bottom of the welding wire canister and ensure that the welding wire canister is stable.

[0023] As an embodiment of the present invention, the upper surface of the tray 19 is lower than the upper surface of the U-shaped seat 1. A baffle 20 is fixedly provided on the upper surface of the tray 19 near the opening end of the U-shaped seat 1. The bottom of the welding wire hopper can be radially limited by the baffle 20 and the inner wall of the U-shaped seat 1 to prevent the welding wire hopper from sliding on the tray 19.

[0024] The working principle and usage process of this utility model are as follows: When replacing the welding wire hopper, first remove the empty welding wire hopper and pull the pallet out of the groove. Push this device to the side of the new welding wire hopper so that the U-shaped seat 1 fits on the outside of the new welding wire hopper. Hang the hook 6 on the handle of the new welding wire hopper. Start the motor 8 to raise the U-shaped frame 4. Under the pull of the hook 6, the welding wire hopper can be lifted. When the bottom of the welding wire hopper is higher than the U-shaped seat 1, insert the pallet into the groove 18. Then lower the welding wire hopper so that the bottom of the welding wire hopper contacts the pallet. Push this device to the position where the welding wire hopper should be placed and lock the wheels. Pull out the welding wire in the welding wire hopper and pass it through the welding wire hopper cap and place it between the support roller 12 and the pressure roller 13. When feeding, start the motor 17 to drive the support roller 12 to rotate. The rotation of the support roller 12 will pull out the welding wire in the welding wire hopper.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wire feeding device for a welding robot, characterized in that, Includes a U-shaped seat (1), a column (2) is fixedly installed on one side of the upper part of the U-shaped seat (1), a sliding sleeve (3) is slidably installed on the column (2), a U-shaped frame (4) is fixedly installed on one side of the sliding sleeve (3), the two ends of the U-shaped frame (4) can be detachably connected to the welding wire drum, a pair of straight wheels (9) are fixedly installed below the two ends of the U-shaped seat (1), a universal wheel (10) is fixedly installed below the column (2) of the U-shaped seat (1), and a welding wire drive assembly is provided at the upper end of the column (2).

2. The wire feeding device for a welding robot according to claim 1, characterized in that, The welding wire drive assembly includes a mounting plate (11) fixedly mounted on the upper end of the column (2). Multiple rollers (12) are rotatably mounted on the front side of the mounting plate (11). A pressure roller (13) is also rotatably mounted on the front side of the mounting plate (11) and is offset from the multiple rollers (12). The welding wire can be pressed onto the rollers (12) by the pressure roller (13). Each roller (12) is connected to a worm gear (14) through a shaft. A rotating shaft (15) is provided on the rear side of the mounting plate (11). Multiple worms (16) that can mesh with the worm gears (14) are provided on the rotating shaft (15). A motor (17) that drives the rotating shaft (15) to rotate is fixedly mounted on the rear side of the mounting plate (11).

3. The wire feeding device for a welding robot according to claim 1, characterized in that, A threaded rod (7) is rotatably provided on one side of the column (2), and the threaded rod (7) is threadedly connected to the sliding sleeve (3). A motor (8) for driving the threaded rod (7) to rotate is fixedly provided on the column (2).

4. The welding wire feeding device for a welding robot according to claim 1, characterized in that, Both ends of the U-shaped frame (4) are connected to iron chains (5), and the ends of the iron chains (5) are connected to hooks (6), which can be hung on the handle of the welding wire drum.

5. A wire feeding device for a welding robot according to claim 1, characterized in that, The inner surface of the U-shaped seat (1) is provided with a groove (18), and a support plate (19) is inserted into the groove (18).

6. A wire feeding device for a welding robot according to claim 5, characterized in that, The upper surface of the tray (19) is lower than the upper surface of the U-shaped seat (1), and a baffle (20) is fixedly provided on the upper surface of the tray (19) near the opening end of the U-shaped seat (1).

Images