Welding flux conveying system of submerged-arc welding robot

Abstract

The utility model discloses a submerged arc welding robot welding flux conveying system, the submerged arc welding robot comprises a mechanical arm and a welding gun, the welding flux conveying system comprises a welding flux spiral conveying mechanism and a vacuum mechanism, the welding flux spiral conveying mechanism is arranged on the mechanical arm and connected with the welding gun, and the vacuum mechanism is arranged on the mechanical arm and connected with the welding gun. The vacuum mechanism comprises a vacuumizing device, a conveying cavity and a welding flux feeding mechanism, the conveying cavity is formed in the welding flux spiral conveying mechanism and communicates with the welding flux spiral conveying mechanism, and the vacuumizing device communicates with the conveying cavity through a vacuum pipe and is used for vacuumizing the conveying cavity; the welding flux feeding mechanism communicates with the conveying cavity through a feeding pipe and is used for conveying welding flux to the conveying cavity. And the welding flux conveying efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the field of welding equipment, in particular to a flux conveying system for a submerged arc welding robot. Background Art

[0002] With the development of the times, the intelligent demand for the prefabrication of industrial pipelines is becoming stronger and stronger.

[0003] With the continuous introduction of solutions for intelligent pipeline prefabrication, the welding equipment therein can no longer be limited to using special welding machines, or argon arc welding robots and gas shielded welding robots; the welding process can no longer be limited to argon arc welding and submerged arc welding.

[0004] However, it is difficult to realize the intelligence of special welding machines, and it is not convenient to search for weld seams and automatically replace tungsten electrodes (argon arc welding) and clean the gun and cut wires (gas shielded welding); the welding efficiency of argon arc welding robots is generally too low, and the welding process of gas shielded welding robots is restricted within a certain range.

[0005] Therefore, the flexibility and adaptability of the robot can be combined with the high efficiency and mature method of submerged arc welding to achieve simple and efficient flux conveying. However, the structure of the existing flux conveying technology system is complex, the plastic hose seriously affects the movement of the robot, and the integration is poor, so it cannot be popularized and applied in various industries. Summary of the Utility Model

[0006] In view of the above-mentioned deficiencies existing currently, the utility model provides a flux conveying system for a submerged arc welding robot, which can realize the smooth conveying of submerged arc flux.

[0007] To achieve the above object, the embodiments of the utility model are realized through the following technical solutions:

[0008] A flux conveying system for a submerged arc welding robot, the submerged arc welding robot includes a robotic arm and a welding torch, the flux conveying system includes a flux screw conveying mechanism and a vacuum mechanism, the flux screw conveying mechanism is arranged on the robotic arm and connected to the welding torch, the vacuum mechanism includes a vacuum pumping device, a conveying chamber and a flux feeding mechanism, the conveying chamber is arranged on the flux screw conveying mechanism and communicated with the flux screw conveying mechanism, the vacuum pumping device is communicated with the conveying chamber through a vacuum pipe and is used for pumping vacuum for the conveying chamber, and the flux feeding mechanism is communicated with the conveying chamber through a feeding pipe and is used for feeding flux into the conveying chamber.

[0009] According to one aspect of the utility model, the flux screw conveying mechanism includes a conveying pipe, a flux buffer funnel is arranged on the conveying pipe, and the conveying pipe is connected to the welding torch through a feeding hose.

[0010] According to one aspect of the present utility model, a planetary speed reducer is provided on one side of the conveying pipe, a spiral body connected to the planetary speed reducer is provided inside the conveying pipe, and the planetary speed reducer can drive the spiral body to rotate.

[0011] According to one aspect of the present utility model, the side of the conveying pipe away from the planetary speed reducer is bent downward to form a bent pipe, and a photoelectric switch is provided inside the bent pipe.

[0012] According to one aspect of the present utility model, the submerged arc welding robot further includes a welding mobile trolley, a robotic arm and a control cabinet are connected to the welding mobile trolley, and the control cabinet is used to control the submerged arc welding robot and the conveying system.

[0013] According to one aspect of the present utility model, the robotic arm is a 6-axis robotic arm.

[0014] According to one aspect of the present utility model, the flux feeding mechanism includes a flux loading and screening funnel connected to the side wall of the vacuum pumping device.

[0015] According to one aspect of the present utility model, a filter screen is provided inside the flux loading and screening funnel.

[0016] According to one aspect of the present utility model, one end of the vacuum pipe is arranged at the top of the conveying cavity, and the other end of the vacuum pipe is arranged on the side wall of the vacuum pumping device.

[0017] According to one aspect of the present utility model, one end of the feeding pipe is arranged on the side wall of the conveying cavity, and the other end of the feeding pipe is arranged at the lower end of the flux feeding mechanism.

[0018] Advantages of the implementation of the present utility model: The conveying system has a simple structure, does not affect the robot's various movements, has good overall integration and aesthetics, and can simultaneously solve the smooth conveying of the submerged arc welding flux of the submerged arc welding robot. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the following-described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic structural diagram of the present utility model;

[0021] Figure 2 It is a schematic structural diagram of Embodiment 1 of the present utility model;

[0022] Figure 3Schematic diagram of the second embodiment of the present utility model;

[0023] Figure 4 Appearance schematic diagram of the flux spiral conveying mechanism of the present utility model;

[0024] Figure 5 Schematic diagram of the structure of the flux spiral conveying mechanism of the present utility model.

[0025] The names corresponding to the serial numbers in the figure are as follows:

[0026] 1. Flux spiral conveying mechanism; 11. Conveying pipe; 12. Flux buffer funnel; 2. Submerged arc welding robot; 21. Welding mobile trolley; 22. Manipulator; 23. Control cabinet; 24. Welding torch; 25. Welding tee; 3. Vacuum mechanism; 31. Vacuum pumping device; 32. Conveying cavity; 33. Flux feeding mechanism; 4. Filter screen; 5. Vacuum pipe; 6. Feeding pipe; 7. Elbow pipe; 8. Planetary reducer; 9. Spiral body; 10. Feeding hose. Specific implementation mode

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model. In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "top", "bottom", "one side", "the other side", "front", "rear", "middle part", "inside", "top end", "bottom end", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0028] Embodiment 1:

[0029] Such as Figures 1 to 2 、 Figures 4 to 5As shown, a flux conveying system for a submerged arc welding robot is provided. The submerged arc welding robot 2 includes a mechanical arm 22 and a welding gun 24. The flux conveying system includes a flux spiral conveying mechanism 1 and a vacuum mechanism 3. The flux spiral conveying mechanism 1 is arranged on the mechanical arm 22 and is connected to the welding gun 24. The vacuum mechanism 3 includes a vacuum pumping device 31, a conveying chamber 32 and a flux feeding mechanism 33. The conveying chamber 32 is arranged on the flux spiral conveying mechanism 1 and is connected to the flux spiral conveying mechanism 1. The vacuum pumping device 31 is connected to the conveying chamber 32 through a vacuum tube 5 and is used to vacuum the conveying chamber 32. The flux feeding mechanism 33 is connected to the conveying chamber 32 through a feeding pipe 6 and is used to convey flux to the conveying chamber 32. The conveying chamber 32 is evacuated to a certain degree of vacuum through the vacuum tube 5 by the vacuum pumping device 31. After the flux is sucked up by the vacuum and reaches a certain weight, the flux forces the door below the conveying chamber 32 to open, and the flux leaks into the flux buffer funnel 12 below. When the spiral conveying mechanism is opened, the flux is transported downward to the spiral conveying mechanism by gravity, thereby pumping the flux into the conveying chamber 32 through the feeding pipe 6.

[0030] In this embodiment, the cross section of the delivery cavity 32 is circular.

[0031] The vacuum tube 5 or the feeding tube 6 is a plastic hose, which has low cost and strong sealing performance.

[0032] In practical applications, the flux spiral conveying mechanism 1 includes a conveying pipe 11 , on which a flux buffer funnel 12 is provided. The conveying pipe 11 is connected to a welding gun 24 through a feeding hose 10 , and the feeding hose 10 is connected to the welding gun 24 through a welding tee 25 .

[0033] In practical applications, a planetary reducer 8 is provided on one side of the delivery pipe 11, and a spiral body 9 connected to the planetary reducer 8 is provided inside the delivery pipe 11, and the planetary reducer 8 can drive the spiral body 9 to rotate. The flux is pushed forward by the spiral body 9 inside the delivery pipe 11, and is delivered into the feeding hose 10 from the flux.

[0034] In actual application, the side of the delivery pipe 11 away from the planetary reducer 8 is bent downward to form an elbow 7, and a photoelectric switch is provided in the elbow 7. Through the photoelectric switch, when the flux in the unloading hose 10 exceeds a certain height, the flux stops being delivered: the flux is dropped into the welding tee 25 by gravity.

[0035] In practical applications, a connecting piece for connecting to the submerged arc welding robot 2 is provided on the outer wall of the delivery pipe 11 .

[0036] In practical applications, the submerged arc welding robot 2 further includes a welding mobile carriage 21 , to which a mechanical arm 22 and a control cabinet 23 are connected. The control cabinet 23 is used to control the submerged arc welding robot 2 and the conveying system.

[0037] In practical applications, the robotic arm 22 is a 6-axis robotic arm.

[0038] In practical applications, a vision detection system is provided on the side wall of the welding torch 24. The welding process is monitored in real time and the quality is detected through the vision detection system.

[0039] In practical applications, the flux feeding mechanism 33 includes a flux loading and screening funnel connected to the side wall of the vacuum pumping device. When the door below the conveying cavity 32 is opened, the flux leaks into the flux buffer funnel 12 below.

[0040] In practical applications, a filter screen 4 is provided inside the flux loading and screening funnel. During use, the new and old flux are directly poured into the funnel, and the old flux filters out the welding slag through the filter screen 4 therein.

[0041] In practical applications, a photoelectric switch is provided on the flux buffer funnel 12. Through the photoelectric switch, when the amount of flux in the flux buffer funnel 12 exceeds a certain height, the suction of the flux stops.

[0042] In practical applications, one end of the vacuum tube 5 is arranged at the top of the conveying cavity 32, and the other end of the vacuum tube 5 is arranged on the side wall of the vacuum pumping device. The vacuum tube 5 is reasonably arranged to prevent the robotic arm 22 from being affected by entanglement.

[0043] In practical applications, one end of the feeding tube 6 is arranged on the side wall of the conveying cavity 32, and the other end of the feeding tube 6 is arranged at the lower end of the flux feeding mechanism 33. The feeding tube 6 is reasonably arranged to prevent the robotic arm 22 from being affected by entanglement.

[0044] Embodiment 2:

[0045] Such as Figure 1 、 Figures 3 to 5As shown in the figure, a submerged arc welding robot flux delivery system. The submerged arc welding robot 2 includes a robotic arm 22 and a welding torch 24. The flux delivery system includes a screw conveyor mechanism 1 for flux and a vacuum mechanism 3. The screw conveyor mechanism 1 for flux is arranged on the robotic arm 22 and connected to the welding torch 24. The vacuum mechanism 3 includes a vacuum pumping device 31, a delivery chamber 32, and a flux feeding mechanism 33. The delivery chamber 32 is arranged on the screw conveyor mechanism 1 for flux and is in communication with the screw conveyor mechanism 1 for flux. The vacuum pumping device 31 is in communication with the delivery chamber 32 through a vacuum tube 5 and is used to evacuate the delivery chamber 32. The flux feeding mechanism 33 is in communication with the delivery chamber 32 through a feeding tube 6 and is used to deliver flux to the delivery chamber 32. At the bottom of the submerged arc welding robot 2 and the flux delivery system, there is a welding mobile trolley 21. By using the vacuum pumping device 31 to evacuate the delivery chamber 32 to a certain degree of vacuum through the vacuum tube 5, after the flux is sucked up by the vacuum and reaches a certain weight, the flux forces the door below the delivery chamber 32 to open, and the flux leaks into the flux buffer funnel 12 below. When the screw conveyor mechanism is turned on, the flux is conveyed downward by gravity into the screw conveyor mechanism, so as to suck the flux into the delivery chamber 32 through the feeding tube 6. Compared with Embodiment 1, at the bottom of the submerged arc welding robot 2 and the flux delivery system, there is a welding mobile trolley 21, so that the submerged arc welding robot and the flux delivery system are installed on the welding mobile trolley 21, making it more convenient to adjust the position.

[0046] In this embodiment, the cross-section of the delivery chamber 32 is circular.

[0047] The vacuum tube 5 or the feeding tube 6 is made of a plastic hose. Using a plastic hose has low cost and strong sealing performance.

[0048] In practical applications, the screw conveyor mechanism 1 for flux includes a delivery pipe 11. A flux buffer funnel 12 is arranged on the delivery pipe 11. The delivery pipe 11 is connected to the welding torch 24 through a feeding hose 10, and the feeding hose 10 is connected to the welding through a welding tee 25.

[0049] In practical applications, a planetary speed reducer 8 is arranged on one side of the delivery pipe 11. A spiral body 9 connected to the planetary speed reducer 8 is arranged inside the delivery pipe 11, and the planetary speed reducer 8 can drive the spiral body 9 to rotate. By using the spiral body 9 inside the delivery pipe 11, the flux is pushed forward and conveyed into the feeding hose 10.

[0050] In practical applications, the side of the delivery pipe 11 away from the planetary speed reducer 8 is bent downward to form a bent pipe 7, and a photoelectric switch is arranged inside the bent pipe 7. Through the photoelectric switch, when the flux in the feeding hose 10 exceeds a certain height, the flux stops being conveyed: the flux falls into the welding tee 25 by gravity.

[0051] In practical applications, a connecting piece for connecting the submerged arc welding robot 2 is arranged on the outer wall of the delivery pipe 11.

[0052] In practical applications, the submerged arc welding robot 2 further includes a control cabinet 23. The control cabinet 23 is used to control the submerged arc welding robot 2 and the conveying system.

[0053] In practical applications, the robotic arm 22 is a 6-axis robotic arm.

[0054] In practical applications, a vision detection system is provided on the side wall of the welding torch 24. The welding process is monitored in real time and the quality is detected through the vision detection system.

[0055] In practical applications, the flux feeding mechanism 33 includes a flux loading and screening funnel connected to the side wall of the vacuum pumping device 31. When the door below the conveying chamber 32 is opened, the flux leaks into the flux buffer funnel 12 below.

[0056] In practical applications, a filter screen 4 is provided in the flux loading and screening funnel. During use, the new and old flux are directly poured into the funnel, and the old flux filters out the welding slag through the filter screen 4 therein.

[0057] In practical applications, a photoelectric switch is provided on the flux buffer funnel 12. Through the photoelectric switch, when the amount of flux in the flux buffer funnel 12 exceeds a certain height, the suction of the flux stops.

[0058] In practical applications, one end of the vacuum tube 5 is provided at the top of the conveying chamber 32, and the other end of the vacuum tube 5 is provided on the side wall of the vacuum pumping device 31. The vacuum tube 5 is reasonably arranged to prevent the robotic arm 22 from being affected by entanglement.

[0059] In practical applications, one end of the feeding tube 6 is provided on the side wall of the conveying chamber 32, and the other end of the feeding tube 6 is provided at the lower end of the flux feeding mechanism 33. The feeding tube 6 is reasonably arranged to prevent the robotic arm 22 from being affected by entanglement.

[0060] The above is only the specific implementation manner of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by this utility model should be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model shall be subject to the protection scope of the claims.

Claims

1. A flux delivery system for a submerged arc welding robot, wherein the submerged arc welding robot (2) comprises a mechanical arm (22) and a welding gun (24), characterized in that: The flux conveying system comprises a flux screw conveying mechanism (1) and a vacuum mechanism (3); the flux screw conveying mechanism (1) is arranged on a mechanical arm (22) and connected to the welding gun (24); the vacuum mechanism (3) comprises a vacuum pumping device (31), a conveying chamber (32) and a flux feeding mechanism (33); the conveying chamber (32) is arranged on the flux screw conveying mechanism (1) and is connected to the flux screw conveying mechanism (1); the vacuum pumping device (31) is connected to the conveying chamber (32) through a vacuum tube (5) and is used to evacuate the conveying chamber (32); the flux feeding mechanism (33) is connected to the conveying chamber (32) through a feeding tube (6) and is used to convey flux to the conveying chamber (32).

2. A flux delivery system for a submerged arc welding robot according to claim 1, characterized in that: The flux spiral conveying mechanism (1) comprises a conveying pipe (11), a flux buffer funnel (12) is provided on the conveying pipe (11), and the conveying pipe (11) is connected to a welding gun (24) via a feeding hose (10).

3. A flux delivery system for a submerged arc welding robot according to claim 2, characterized in that: A planetary reducer (8) is provided on one side of the delivery pipe (11), and a spiral body (9) connected to the planetary reducer (8) is provided inside the delivery pipe (11), and the planetary reducer (8) can drive the spiral body (9) to rotate.

4. A flux delivery system for a submerged arc welding robot according to claim 3, characterized in that: The side of the delivery pipe (11) away from the planetary reducer (8) is bent downward to form a curved pipe (7), and a photoelectric switch is provided in the curved pipe (7).

5. The flux delivery system of a submerged arc welding robot according to claim 1, characterized in that: The submerged arc welding robot (2) further comprises a welding mobile carriage (21), to which a mechanical arm (22) and a control cabinet (23) are connected, and the control cabinet (23) is used to control the submerged arc welding robot (2) and the conveying system.

6. The flux delivery system of a submerged arc welding robot according to claim 1, characterized in that: The mechanical arm (22) is a 6-axis mechanical arm.

7. The flux delivery system of a submerged arc welding robot according to claim 1, characterized in that: The flux feeding mechanism (33) comprises a flux loading and screening funnel connected to the side wall of the vacuum extraction device (31).

8. A flux delivery system for a submerged arc welding robot according to claim 7, characterized in that: A filter screen (4) is arranged inside the flux loading and screening funnel.

9. A flux delivery system for a submerged arc welding robot according to any one of claims 1 to 8, characterized in that: One end of the vacuum tube (5) is arranged at the top end of the conveying cavity (32), and the other end of the vacuum tube (5) is arranged on the side wall of the vacuum extraction device (31).

10. A flux delivery system for a submerged arc welding robot according to claim 9, characterized in that: One end of the feeding pipe (6) is arranged on the side wall of the conveying cavity (32), and the other end of the feeding pipe (6) is arranged at the lower end of the flux feeding mechanism (33).

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