Robot welding device

Abstract

The utility model provides a robot welding device. The robot welding device comprises a six-axis mechanical arm, a welding device is installed at the front end of the six-axis mechanical arm, one side of the welding device is fixedly connected with a purification mechanism used for purifying poisonous gas and metal smoke generated in the welding process, and the purification mechanism comprises a purification box, a filter screen, an activated carbon filter layer, an air pump and a water tank. An air pump works to extract air in the purification box through an air extraction pipe, so that negative pressure is formed at an opening of an expansion pipe to extract smoke and gas generated in the welding process into the purification box, and then a filter screen filters metal particles in the smoke; and the absorbent cotton and the activated carbon filter layer filter oxycarbide and nitric oxide in smoke and gas and then discharge the smoke and the gas into the air, so that the air around welding is filtered and purified to a certain extent, and the harm of poisonous gas generated in the welding process to workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of welding devices, in particular to a robot welding device. Background Technique

[0002] A welding robot is an industrial robot engaged in welding (including cutting and spraying). According to the definition of an industrial robot belonging to a standard welding robot by the International Organization for Standardization, an industrial robot is a multi-purpose, reprogrammable automatic control manipulator with three or more programmable axes. Currently, most robot welding devices include a six-axis manipulator and a welding torch. A welding torch is installed at the front end of the six-axis manipulator. During use, the manipulator drives the welding torch to adjust to a suitable angle according to pre-programmed instructions, and then the welding torch welds the workpiece. However, during the welding process, since the welding part is carried out in a high-temperature environment, this leads to the generation of toxic gases such as metallic fumes, carbon oxides, and nitrogen oxides during the welding process. The metallic fumes and toxic gases are directly discharged into the air, endangering physical health.

[0003] Therefore, it is necessary to provide a new robot welding device to solve the above technical problems. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model provides a robot welding device.

[0005] A robot welding device provided by the utility model includes a six-axis manipulator, a welding torch is installed at the front end of the six-axis manipulator, and a purification mechanism for purifying toxic gases and metallic fumes generated during welding is fixedly connected to one side of the welding torch;

[0006] The purification mechanism includes a purification box, a filter screen, an activated carbon filter layer, an air pump, and a water tank. A purification box is fixedly connected to one side of the welding torch. A filter screen is embedded in the purification box. A water-absorbing cotton is fixedly connected to the upper end surface of the filter screen. An activated carbon filter layer is fixedly connected to the upper end surface of the water-absorbing cotton. An air pump is fixedly connected to one side of the upper end surface of the purification box. An air extraction pipe is fixedly connected to the air extraction end of the air pump. The lower end of the air extraction pipe penetrates through the top of the purification box. A box cover is clamped to the opening of the purification box through a clamping mechanism. An expansion pipe is fixedly connected to the lower end of the box cover;

[0007] A water tank for containing alkaline liquid is embedded in the upper end surface of the purification box away from the air pump. Both ends of the water tank penetrate through the top of the purification box. A piston is slidably connected to the inside of the water tank. Two atomizing nozzles are fixedly connected to the bottom of the water tank. An air inlet pipe is fixedly connected to the upper end of the water tank. A plurality of exhaust holes are formed on the surface of the air inlet pipe. An exhaust pipe is fixedly connected to the air exhaust end of the air pump. One end of the exhaust pipe is fixedly connected to the upper end of the air inlet pipe.

[0008] Preferably, the lower end longitudinal section of the expansion tube presents a fan shape with a smaller upper part and a larger lower part.

[0009] Preferably, the ground of the expansion tube is located above the part where the welding torch is connected to the electrode in the welding device.

[0010] Preferably, one of the two atomizing nozzles is vertically arranged, and the other atomizing nozzle is inclined 30° towards the air pump.

[0011] Preferably, the clamping mechanism includes fixing holes, fixing pins and fixing pads. Fixing holes are opened at the four corners of the lower end surface of the purification box, fixing pins are fixedly connected to the four corners of the upper end surface of the box cover, and fixing pads that fit the surface of the fixing pins are fixedly connected to both sides of the plurality of fixing pins.

[0012] Preferably, the diameter of the fixing pad is larger than the diameter of the fixing hole.

[0013] Compared with the related art, a robot welding device provided by the present invention has the following beneficial effects:

[0014] The present invention provides a robot welding device. When implemented specifically:

[0015] 1. During welding, the air pump works to extract the air inside the purification box through the suction pipe, thereby forming a negative pressure at the opening of the expansion tube to suck the smoke and gas generated during the welding process into the purification box. Subsequently, the filter screen filters the metal particles in the smoke, and the water-absorbing cotton and activated carbon filter layer filter the carbon oxides and nitrogen oxides in the smoke and gas and then discharge them into the air, thereby filtering and purifying the air around the welding to a certain extent and reducing the harm of the toxic gas generated during welding to the workers;

[0016] 2. During the filtering process, the air pump discharges the extracted gas into the intake pipe through the exhaust pipe. Part of the gas inside the intake pipe is discharged into the air through the exhaust holes opened on the surface, and the other part of the gas that has not had time to be discharged enters the water tank. The increased pressure in the water tank pushes the piston downward, thereby spraying the alkaline gas inside the water tank onto the surface of the inside of the water tank and the activated carbon filter layer through the atomizing nozzle, thereby absorbing the acidic carbon oxides and nitrogen oxides and further improving the air purification efficiency. Description of the Drawings

[0017] Figure 1 is a schematic diagram of the overall structure of a robot welding device provided by the present invention;

[0018] Figure 2 is a schematic diagram of the connection structure between the purification box and the box cover of a robot welding device provided by the present invention;

[0019] Figure 3 Internal structure schematic diagram of a robot welding device provided by the present utility model;

[0020] Figure 4 is Figure 3 the enlarged view at position A in

[0021] Reference numerals in the figure: 1, six-axis manipulator; 2, welding torch; 3, purification box; 4, filter screen; 5, water-absorbing cotton; 6, activated carbon filter layer; 7, air pump; 8, exhaust pipe; 9, water tank; 10, piston; 11, atomizing nozzle; 12, intake pipe; 13, exhaust hole; 14, exhaust pipe; 15, box cover; 16, expansion pipe; 17, fixing hole; 18, fixing pin; 19, fixing pad. Specific implementation mode

[0022] The present utility model will be further described below in conjunction with the drawings and the implementation mode.

[0023] Please refer to Figure 1 - Figure 4 , wherein, Figure 1 Overall structure schematic diagram of a robot welding device provided by the present utility model; Figure 2 Connection structure schematic diagram between the purification box and the box cover of a robot welding device provided by the present utility model; Figure 3 Internal structure schematic diagram of a robot welding device provided by the present utility model; Figure 4 is Figure 3 the enlarged view at position A in

[0024] In the specific implementation process, such as Figure 1 - Figure 4As shown in the figure, a robotic welding device includes a six-axis manipulator 1. A welding torch 2 is installed at the front end of the six-axis manipulator 1. One side of the welding torch 2 is fixedly connected to a purification mechanism for purifying toxic gases and metal fumes generated during welding. The purification mechanism includes a purification box 3, a filter screen 4, an activated carbon filter layer 6, an air pump 7, and a water tank 9. One side of the welding torch 2 is fixedly connected to a purification box 3. A filter screen 4 is embedded inside the purification box 3. A water absorbent cotton 5 is fixedly connected to the upper end face of the filter screen 4. An activated carbon filter layer 6 is fixedly connected to the upper end face of the water absorbent cotton 5. An air pump 7 is fixedly connected to one side of the upper end face of the purification box 3. The air suction end of the air pump 7 is fixedly connected to a suction pipe 8. The lower end of the suction pipe 8 penetrates through the top of the purification box 3. The opening of the purification box 3 is clamped with a box cover 15 through a clamping mechanism. The lower end of the box cover 15 is fixedly connected to an expansion pipe 16. A water tank 9 for containing alkaline liquid is embedded in one side of the upper end face of the purification box 3 away from the air pump 7. Both ends of the water tank 9 penetrate through the top of the purification box 3. A piston 10 is slidably connected inside the water tank 9. Two atomizing nozzles 11 are fixedly connected to the bottom of the water tank 9. An air inlet pipe 12 is fixedly connected to the upper end of the water tank 9. A plurality of exhaust holes 13 are formed on the surface of the air inlet pipe 12. The air exhaust end of the air pump 7 is fixedly connected to an exhaust pipe 14. One end of the exhaust pipe 14 is fixedly connected to the upper end of the air inlet pipe 12. The lower longitudinal section of the expansion pipe 16 presents a fan shape with a smaller upper part and a larger lower part. The ground of the expansion pipe 16 is located above the electrode connecting part of the welding torch 2. One of the two atomizing nozzles 11 is vertically arranged, and the other atomizing nozzle 11 is inclined 30° towards the air pump 7. The clamping mechanism includes a fixing hole 17, a fixing pin 18, and a fixing pad 19. Fixing holes 17 are formed at the four corners of the lower end face of the purification box 3. Fixing pins 18 are fixedly connected to the four corners of the upper end face of the box cover 15. Fixing pads 19 that fit the surface of the fixing pins 18 are fixedly connected to both sides of the plurality of fixing pins 18. The diameter of the fixing pad 19 is larger than the diameter of the fixing hole 17.

[0025] The working principle provided by the present utility model is as follows: During welding, the air pump 7 operates to extract the internal air of the purification box 3 through the extraction pipe 8, thereby forming a negative pressure at the opening of the expansion pipe 16 to suck the smoke and gas generated during the welding process into the interior of the purification box 3. Subsequently, the filter screen 4 filters the metal particles in the smoke, and the water-absorbing cotton 5 and the activated carbon filter layer 6 filter the carbon oxides and nitrogen oxides in the smoke and gas and then discharge them into the air, thereby filtering and purifying the air around the welding to a certain extent. At the same time, the air pump 7 discharges the extracted gas into the intake pipe 12 through the exhaust pipe 14. A part of the gas inside the intake pipe 12 is discharged into the air through the exhaust holes formed on the surface, and the other part of the gas that has not had time to be discharged enters the water tank 9. The increased pressure in the water tank 9 pushes the piston to move downward, thereby spraying the alkaline gas inside the water tank 9 onto the inside of the water tank 9 and the surface of the activated carbon filter layer 6 through the atomizing nozzle 11, so as to absorb the acidic carbon oxides and nitrogen oxides and further improve the air purification efficiency.

[0026] The circuits and controls involved in the present utility model are all prior arts and will not be elaborated herein.

[0027] The above are only the embodiments of the present utility model and do not limit the patent scope of the present utility model accordingly. Any equivalent structural or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. A robot welding device, characterized in that, It includes a six-axis manipulator (1), and a welding torch (2) is installed at the front end of the six-axis manipulator (1). One side of the welding torch (2) is fixedly connected with a purification mechanism for purifying toxic gases and metal fumes generated during welding. The purification mechanism includes a purification box (3), a filter screen (4), an activated carbon filter layer (6), an air pump (7) and a water tank (9). One side of the welding torch (2) is fixedly connected with a purification box (3). A filter screen (4) is embedded in the purification box (3). A water-absorbing cotton (5) is fixedly connected to the upper end surface of the filter screen (4). An activated carbon filter layer (6) is fixedly connected to the upper end surface of the water-absorbing cotton (5). An air pump (7) is fixedly connected to one side of the upper end surface of the purification box (3). The air suction end of the air pump (7) is fixedly connected with a suction pipe (8). The lower end of the suction pipe (8) penetrates through the top of the purification box (3). The opening of the purification box (3) is clamped with a box cover (15) through a clamping mechanism. An expansion pipe (16) is fixedly connected to the lower end of the box cover (15). A water tank (9) for containing alkaline liquid is embedded in one side of the upper end surface of the purification box (3) away from the air pump (7). Both ends of the water tank (9) penetrate through the top of the purification box (3). A piston (10) is slidably connected inside the water tank (9). Two atomizing nozzles (11) are fixedly connected to the bottom of the water tank (9). An air inlet pipe (12) is fixedly connected to the upper end of the water tank (9). A plurality of exhaust holes (13) are formed on the surface of the air inlet pipe (12). The air exhaust end of the air pump (7) is fixedly connected with an exhaust pipe (14). One end of the exhaust pipe (14) is fixedly connected to the upper end of the air inlet pipe (12).

2. The robotic welding device according to claim 1, wherein The lower longitudinal section of the expansion pipe (16) presents a fan shape with a smaller upper part and a larger lower part.

3. The robotic welding device according to claim 1, wherein The ground of the expansion pipe (16) is located above the part where the welding torch (2) is connected to the welding rod.

4. The robotic welding device according to claim 1, characterized in that, One of the two atomizing nozzles (11) is vertically arranged, and the other atomizing nozzle (11) is inclined 30° towards the air pump (7).

5. A robot welding device according to claim 1, characterized in that, The clamping mechanism includes fixing holes (17), fixing pins (18) and fixing pads (19). Fixing holes (17) are formed at the four corners of the lower end surface of the purification box (3). Fixing pins (18) are fixedly connected to the four corners of the upper end surface of the box cover (15). Fixing pads (19) that fit the surface of the fixing pins (18) are fixedly connected to both sides of the plurality of fixing pins (18).

6. The robotic welding device according to claim 5, characterized in that, The diameter of the fixing pad (19) is larger than the diameter of the fixing hole (17).

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