Narrow space welding seam treatment device

Abstract

The invention discloses a narrow space weld joint treatment device, and relates to the technical field of weld joint treatment, the narrow space weld joint treatment device comprises a frame body assembly, a grinding assembly, a dust collection assembly, a fixing assembly and a sliding assembly, the frame body assembly comprises an arc-shaped square frame, a mounting plate is fixed to the inward side of the arc-shaped square frame, and the grinding assembly comprises a pneumatic grinding machine fixed to the side end of the mounting plate; and the dust collection assembly comprises a dust collection pipe arranged on the side edge of the vertical rod, the lower end of the dust collection pipe is connected with a first flexible pipeline, and the lower end of the first flexible pipeline is connected with a suction nozzle. The pneumatic grinding machine is installed on the frame body assembly, then the frame body assembly is placed at the gap of the double-layer barrel workpiece, the pneumatic grinding machine drives the grinding wheels to rotate, the grinding wheels are located at the same height all the time, the grinding effect of all positions is neat and consistent, the welding seam quality is guaranteed, and the interior of the gap of the double-layer barrel workpiece can be cleaned; and the gas cavity can provide a gas protection function for welding seam welding.

Description

Technical Field

[0001] The present application relates to the technical field of weld processing, and in particular to a weld processing device in a narrow space. Background Art

[0002] At present, there are many products with double-layer cylinder structure in the machinery manufacturing industry. In actual manufacturing, the last welded cylinder is often welded on one side, and the welding is performed from the outside of the container. The root of the weld is in the double-layer hollow cavity. In this case, it is very difficult to clean the weld surface in the double-layer hollow cavity, especially the deeper welds are more troublesome to handle.

[0003] At present, for welds in narrow spaces, an extension rod is usually used to extend tools such as grinders and vacuum tubes into the cavity for work. For areas with small gaps in the middle and deep welds, this method is difficult to achieve the purpose of cleaning. Problems such as insufficient rigidity causing deviation during cleaning, inability to fix the position for a long time, and difficulty in accurately processing the weld position due to too deep a depth may occur. In addition, the weld surface after cleaning is often not good, which in turn affects the weld quality and the overall function of the product. Summary of the invention

[0004] In order to improve the weld processing effect in a narrow space, the present application provides a narrow space weld processing device.

[0005] The present application provides a narrow space weld processing device that adopts the following technical solution: A narrow space weld processing device comprises a frame assembly, a grinding assembly, a dust suction assembly, a fixing assembly and a sliding assembly, wherein the frame assembly comprises an arc-shaped square frame, a mounting plate is fixed on an inner side of the arc-shaped square frame, and a vertical rod is arranged at the upper end of the arc-shaped square frame, the fixing assembly is arranged at the upper end of the vertical rod, the grinding assembly comprises a pneumatic grinder, the pneumatic grinder is fixed to the side end of the mounting plate, a grinding wheel is installed on the rotating shaft of the pneumatic grinder, the dust suction assembly comprises a dust suction pipe which is arranged on the side of the vertical rod and extends downward along the edge of the arc-shaped square frame, and the dust suction pipe is fixed to the vertical rod and the arc-shaped square frame through a pipe clamp, the lower end of the dust suction pipe is connected to a first flexible pipe, the lower end of the first flexible pipe is connected to a suction nozzle, a rotating cylinder is installed at the edge of the arc-shaped square frame for driving the suction nozzle to swing, the sliding assembly is arranged below the arc-shaped square frame, and the sliding assembly comprises a roller for driving the device to move.

[0006] By adopting the above technical solution, the arc-shaped square frame can be placed in the gap of the double-layer cylindrical workpiece, the bottom is supported by the roller, and the upper end of the vertical rod will be higher than the cylindrical workpiece, which is convenient for gas connection. After the vacuum tube is connected to the industrial vacuum cleaner, when grinding, the grinding wheel is consistent with the weld height, and the roller can facilitate the movement of the arc-shaped square frame in the gap, and it can be ground along the weld while moving. The grinding structure is stable and can be continuously ground to improve the weld processing effect. The dust and welding slag after grinding will be sucked by the suction nozzle after falling, so the gap of the double-layer cylinder can be cleaned. The suction nozzle can change direction under the adjustment of the rotating cylinder to absorb dust and debris at different angles, and the cleaning effect is better.

[0007] Preferably, a vertical plate is fixed in the middle position of the arc-shaped square frame, and a guide plate is fixed on the side of the vertical plate close to the pneumatic grinder, the guide plate is located directly below the pneumatic grinder, a branch pipe is connected to the side end of the dust suction pipe, and the branch pipe is connected to the arc-shaped square frame, and the connection part is aligned with the lower end of the guide plate.

[0008] By adopting the above technical solution, the welding slag and dust after grinding will fall down onto the guide plate, and then slide down along the guide plate to the port of the branch pipe, making it convenient for the industrial vacuum cleaner to extract the welding slag and dust, further improving the cleaning effect.

[0009] Preferably, the sliding assembly includes two support rods, two through holes are provided at the lower end of the arc-shaped square frame, the support rods are inserted into the through holes, two nuts are threadedly connected to the support rods, the two nuts are respectively abutted against the inner and outer sides of the arc-shaped square frame, and are used to fix the support rods, and the roller is installed at the lower end of the support rods.

[0010] By adopting the above technical solution, the support rod is fixed on the arc-shaped square frame by two nuts. The height of the support rod can be changed by adjusting the two nuts, thereby adjusting the height of the grinding wheel, thereby expanding the application range of the device.

[0011] Preferably, two layer plates are fixed on the side of the vertical plate away from the pneumatic grinder, the space between the two layer plates is at the same height as the grinding wheel, and an argon gas inlet pipe is connected to the upper layer plate for inputting argon gas into the air cavity between the two layer plates for welding protection.

[0012] By adopting the above technical solution, the two layer plates are located exactly on the upper and lower sides of the weld, and the edges of the vertical plate and the arc-shaped square frame can provide a gas supply space at the welding point. Argon gas is then injected into the space between the two layer plates through the argon gas inlet pipe, which can provide argon gas protection on the back of the weld during argon arc welding.

[0013] Preferably, an air box is fixed to the lower surface of the layer plate located below, a compressed air inlet pipe is connected to the air box, two flat air nozzles are arranged on both sides of the air box, and a square hole is opened on the mounting plate, and the square hole is aligned with one of the flat air nozzles.

[0014] By adopting the above technical solution, compressed air is injected into the air box through the compressed air inlet pipe during use, and then sprayed to both sides through two flat air nozzles. This can blow away the dust attached to the side walls of the workpiece, blow the dust off, make it easier for the dust collection component to collect dust, and improve the cleaning effect.

[0015] Preferably, telescopic cylinders for improving the stability of the frame assembly are installed on both the left and right sides of the arc-shaped square frame, and two rotating wheels are rotatably provided at the ends of the arc-shaped square frame.

[0016] By adopting the above technical solution, the width of the arc-shaped square frame is smaller than the width of the gap of the double-layer cylinder, which can be easily put in and taken out. When grinding the weld, the two telescopic cylinders on both sides can be extended so that one end of the telescopic cylinder is against the inner side wall of the gap, and the rotating wheel is against the outer side wall of the gap, thereby improving the stability of the arc-shaped square frame in the gap and then improving the grinding effect.

[0017] Preferably, the fixing assembly includes a flat sleeve fixed to the upper side end of the vertical rod, and a clamping plate is fixed below the flat sleeve, a right-angle plate is slidably arranged in the flat sleeve, and two fastening bolts are threadedly connected above the flat sleeve for fixing the right-angle plate.

[0018] By adopting the above technical solution, the right-angle plate can be fixed by two fastening bolts. When in use, after the right-angle plate is fixed, it can be clamped on both sides of the upper edge of the double-layer cylinder workpiece together with the clamping plate, thereby further improving the stability of the frame assembly.

[0019] Preferably, the vertical rod is a hollow tubular structure, and both ends of the vertical rod are sealed. A plurality of control valves are provided at the upper end of the vertical rod, and a plurality of air pipelines and argon gas delivery pipelines are provided inside the vertical rod. The upper ends of the air pipelines and the argon gas delivery pipelines are respectively connected to the corresponding control valves, and the lower ends of the air pipelines are respectively connected to the pneumatic grinder, the rotary cylinder, the telescopic cylinder and the air box, and the lower end of the argon gas delivery pipeline is connected to the argon gas inlet pipe to facilitate the input of argon gas from the outside.

[0020] By adopting the above technical solution, the air pipelines for supplying air to the pneumatic grinder, rotary cylinder, air box and telescopic cylinder are all distributed inside the vertical rod, and the argon gas delivery pipeline is also distributed inside the vertical rod, which has a better protection effect on the air pipelines and a more compact structure, suitable for use in narrow spaces.

[0021] Preferably, a spring is sleeved on the support rod, and the spring is located below the arc-shaped square frame, the lower end of the spring is against one of the nuts, the upper end of the support rod is hinged with two support rods, and a second flexible pipe is arranged between the flat air nozzle and the air box, and the lower end of the flat air nozzle is hinged to the support rod at the corresponding position.

[0022] By adopting the above technical solution, when the device is placed in the gap, the flat air nozzles blowing air to both sides are pulled by the support rod and move downward, which can reduce the width of the device and facilitate its placement into the gap. When the bottom of the roller makes contact, the weight of the device will compress the spring. At this time, the support rod will push the two support rods upward, thereby expanding the two flat air nozzles to both sides, so that they can fully blow to both sides of the gap.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: 1. Install the pneumatic grinder on the frame assembly, and then place the frame assembly at the gap of the double-layer cylinder workpiece. The bottom is supported by the sliding assembly. When grinding, the pneumatic grinder drives the grinding wheel to rotate. The sliding assembly facilitates the device to move in the gap. The grinding wheel is always at the same height during movement, which can fully grind the weld, and the grinding effect is neat and consistent everywhere, ensuring the quality of the weld; 2. With the help of the dust suction component, the inside of the gap of the double-layer cylindrical workpiece can be cleaned while grinding. The dust and welding slag generated by grinding can be extracted from the dust suction pipe through an industrial vacuum cleaner. In addition, the suction nozzle can be adjusted by the rotating cylinder to change direction, sucking dust and debris at different angles, and the cleaning effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is an axonometric diagram mainly showing the overall structure of the first embodiment of the present application; Figure 2 This is a schematic diagram of the front structure of the arc-shaped square frame mainly embodied in the first embodiment of the present application; Figure 3 This is a schematic diagram of the back structure of the arc-shaped square frame mainly embodied in the first embodiment of the present application; Figure 4 This is a schematic diagram of the upper end structure of the vertical rod mainly embodied in the first embodiment of the present application; Figure 5 This is a schematic diagram of the connection structure between the flat air nozzle and the support rod, which is mainly reflected in the second embodiment of the present application; Figure 6 This is a schematic diagram mainly showing the usage status of this application; Reference numerals: 1, frame assembly; 11, arc-shaped square frame; 12, mounting plate; 13, vertical rod; 14, vertical plate; 15, guide plate; 16, layer plate; 17, square hole; 2. Grinding assembly; 21. Pneumatic grinder; 22. Grinding wheel; 3. Dust suction assembly; 31. Dust suction pipe; 32. Pipe clamp; 33. First flexible pipe; 34. Suction nozzle; 35. Rotating cylinder; 36. Branch pipe; 4. Sliding assembly; 41. Support rod; 42. Nut; 43. Roller; 44. Spring; 5. Rotor; 6. Argon gas inlet pipe; 7. air box; 71. compressed air intake pipe; 72. flat air nozzle; 73. second flexible pipe; 74. support rod; 8. Telescopic cylinder; 9. Fixing assembly; 91. Flat sleeve; 92. Clamping plate; 93. Right angle plate; 94. Fastening bolt; 10. Control valve. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-Figure 6 This application is described in further detail.

[0026] The embodiment of the present application discloses a device for processing welds in narrow spaces.

[0027] Embodiment 1 Reference Figure 1 A narrow space weld processing device includes a frame component 1, a grinding component 2, a dust collection component 3, a fixed component 9 and a sliding component 4. The frame component 1 is divided into various safety areas. The sliding component 4 is arranged at the lower end of the frame component 1 to play a supporting role and facilitate the movement of the frame component 1. The dust collection component 3 is arranged on one side of the frame component 1 to clean the gap of the workpiece of the double-layer cylindrical structure. The grinding component 2 is arranged inside the frame component 1 and can grind the weld when the frame component 1 moves, and the grinding height is moderate and consistent to improve the grinding effect.

[0028] refer to Figure 2 and Figure 3 The frame assembly 1 includes an arc-shaped square frame 11, a mounting plate 12 is fixed to one side of the arc-shaped square frame 11, and a vertical rod 13 is arranged at the upper end of the arc-shaped square frame 11, and a fixing assembly 9 is arranged at the upper end of the vertical rod 13, a vertical plate 14 is fixed to the middle position of the arc-shaped square frame 11, and a guide plate 15 is fixed to one side of the vertical plate 14, and two layer plates 16 are fixed to the other side, and a square hole 17 is opened on the mounting plate 12, and the square hole 17 is located below the layer plate 16, the vertical rod 13 is a tubular structure with sealed ends, and a plurality of gas pipelines and argon gas delivery pipelines are arranged inside, and control valves 10 are installed at the upper ends of the gas pipelines and the argon gas delivery pipelines, which can control the on-off of each gas path.

[0029] The grinding assembly 2 includes a pneumatic grinder 21, the air supply port of the pneumatic grinder 21 is connected to the bottom of the corresponding air pipeline, the pneumatic grinder 21 is fixed to the side end of the mounting plate 12, a grinding wheel 22 is installed on the rotating shaft of the pneumatic grinder 21, and the grinding wheel 22 is located directly above the guide plate 15. The pneumatic grinder 21 drives the grinding wheel 22 to rotate to grind the weld, and as the device moves, the grinding height remains unchanged, and the grinding effect is better.

[0030] The dust suction assembly 3 includes a dust suction pipe 31 arranged on the side of the vertical rod 13, and the dust suction pipe 31 is bent and extended downward along the edge of the arc-shaped square frame 11, and the dust suction pipe 31 is fixed to the vertical rod 13 and the arc-shaped square frame 11 through a pipe clamp 32, and the lower end of the dust suction pipe 31 is connected to a suction nozzle 34 through a first flexible pipe 33, and a rotating cylinder 35 is installed on the edge of the arc-shaped square frame 11 to drive the suction nozzle 34 to swing, and the side end of the dust suction pipe 31 is connected to a branch pipe 36, and the branch pipe 36 is connected to the arc-shaped square frame 11, and the connection part is aligned with the lower end of the guide plate 15 to extract dust and other debris sliding down along the guide plate 15.

[0031] When in use, the upper end of the dust suction pipe 31 is connected to an industrial vacuum cleaner. After the grinding dust and welding slag fall onto the guide plate 15, they slide down along the guide plate 15 and can be sucked out through the branch pipe 36. In addition, the dust that falls to the bottom of the workpiece gap will be sucked by the suction nozzle 34, so that the gap of the double-layer cylinder can be cleaned. Moreover, the suction nozzle 34 can be adjusted by the rotating cylinder 35 to change direction, so as to absorb dust and debris at different angles, and the cleaning effect is better.

[0032] The sliding assembly 4 includes two support rods 41. Two through holes are opened at the lower end of the arc-shaped square frame 11. The support rods 41 are inserted into the two through holes opened at the lower end of the arc-shaped square frame 11. Two nuts 42 are threadedly connected to the support rods 41. The two nuts 42 clamp the arc-shaped square frame 11 to fix the support rods 41. A roller 43 is installed at the lower end of the support rods 41 to ensure the smooth movement of the device.

[0033] The support rod 41 is fixed to the arc-shaped square frame 11 by two nuts 42. The height of the support rod 41 can be changed by adjusting the two nuts 42, thereby adjusting the height of the grinding wheel 22, and grinding welds of different heights, thereby expanding the application range of the device. The adjustment is simple and the use is convenient.

[0034] An argon gas inlet pipe 6 is connected to the upper layer plate 16, the lower end of the argon gas inlet pipe 6 is connected to the air cavity between the two layer plates 16, and the upper end of the argon gas inlet pipe 6 is connected to the bottom of the argon gas delivery pipeline. When in use, argon gas can be flushed in through the argon gas output device to provide protection during welding.

[0035] An air box 7 is fixed to the lower surface of the layer plate 16 located below, and a compressed air inlet pipe 71 is connected to the air box 7. The compressed air inlet pipe 71 is connected to the lower end of the corresponding air pipeline, and compressed air is injected into the air box 7. Two flat air nozzles 72 are arranged on both sides of the air box 7, which can spray compressed air to both sides to blow away the dust attached to the side walls of the workpiece on both sides, blow the dust off, facilitate the dust collection component 3 to collect dust, and improve the cleaning effect.

[0036] Telescopic cylinders 8 are installed on both sides of the left and right sides of the arc-shaped square frame 11, and two rotating wheels 5 are rotatably provided at the ends of the arc-shaped square frame 11. The width of the arc-shaped square frame 11 is smaller than the width of the gap of the double-layer cylinder, which can be convenient for putting in and taking out. When grinding the weld, the two telescopic cylinders 8 on both sides can be extended so that one end of the telescopic cylinder 8 is against the inner side wall of the gap, and the rotating wheel 5 is against the outer side wall of the gap, thereby improving the stability of the arc-shaped square frame 11 in the gap and then improving the grinding effect.

[0037] refer to Figure 4 The fixing assembly 9 includes a flat sleeve 91 fixed to the upper side end of the vertical rod 13, a right-angle plate 93 is slidably arranged in the flat sleeve 91, and a clamping plate 92 is fixed at the bottom of the flat sleeve 91, and two fastening bolts 94 for fixing the right-angle plate 93 are threadedly connected to the top of the flat sleeve 91.

[0038] The right-angle plate 93 can be fixed by two fastening bolts 94 . When in use, after the right-angle plate 93 is fixed, it can be clamped together with the clamping plate 92 on both sides of the upper edge of the double-layer cylinder workpiece, further improving the stability of the frame assembly 1 .

[0039] The implementation principle of a narrow space weld processing device in the embodiment of the present application is as follows: the arc-shaped square frame 11 can be placed in the gap of a double-layer cylindrical workpiece, and the bottom is supported by a roller 43. The height of the support rod 41 can be changed by adjusting the two nuts 42, thereby adjusting the height of the grinding wheel 22 to grind welds of different heights. The upper end of the vertical rod 13 will be higher than the cylindrical workpiece, exposing the control valve 10 outside the gap to facilitate air path connection. After the vacuum tube 31 is connected to the industrial vacuum cleaner, the two telescopic cylinders 8 on both sides can be extended during grinding, so that one end of the telescopic cylinder 8 is against the inner side wall of the gap, and the rotating wheel 5 is against the outer side wall of the gap, thereby improving the stability of the arc-shaped square frame 11 in the gap. After the right-angle plate 93 is fixed, it can be clamped on both sides of the upper edge of the double-layer cylindrical workpiece with the clamping plate 92 respectively, thereby further improving the stability of the frame assembly 1. The grinding wheel 22 is consistent with the weld height, and the roller 43 can be convenient for The arc-shaped square frame 11 moves in the gap, and can grind along the weld while moving. The grinding structure is stable and can be continuously polished to improve the weld processing effect. After the dust and welding slag after grinding fall onto the guide plate 15, they slide down along the guide plate 15 and can be sucked out through the branch pipe 36. In addition, the dust that falls to the bottom of the gap of the workpiece will be sucked by the suction nozzle 34, so that the gap of the double-layer cylinder can be cleaned. The suction nozzle 34 can change direction under the adjustment of the rotating cylinder 35 to absorb dust and debris at different angles, and the cleaning effect is better. In addition, two flat air nozzles 72 are arranged on both sides of the air box 7, which can spray compressed air to both sides to blow the dust attached to the side walls of the workpiece on both sides, blow the dust off, and facilitate the dust suction component 3 to perform dust suction, thereby improving the cleaning effect. The upper end of the argon gas inlet pipe 6 is connected to the bottom of the argon gas delivery pipe. When in use, argon gas can be flushed in through the argon gas output device to provide protection during welding.

[0040] Embodiment 2 Reference Figure 5 The difference between this embodiment and the first embodiment is that the nut 42 below does not contact the arc-shaped square frame 11, a spring 44 is sleeved on the support rod 41, and the spring 44 is located below the arc-shaped square frame 11, the lower end of the spring 44 is against one of the nuts 42, the upper end of the support rod 41 is hinged with two support rods 74, and a second flexible pipe 73 is provided between the flat air nozzle 72 and the air box 7, and the lower end of the flat air nozzle 72 is hinged to the support rod 74 at the corresponding position.

[0041] The implementation principle of the second embodiment is as follows: when the device is placed in the gap, the flat air nozzles 72 that blow air to both sides are pulled by the support rod 41 and move downward, which can reduce the width of the device and facilitate its placement into the gap. When the bottom of the roller 43 makes contact, the weight of the device will compress the spring 44. At this time, the support rod 41 will push the two support rods 74 upward, and then expand the two flat air nozzles 72 to both sides, so that they can fully blow to both sides of the gap, making it easier to place the device without affecting the cleaning effect.

[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A narrow space weld processing device, characterized in that: The invention comprises a frame assembly (1), a grinding assembly (2), a dust collecting assembly (3), a fixing assembly (9) and a sliding assembly (4), wherein the frame assembly (1) comprises an arc-shaped square frame (11), a mounting plate (12) is fixed on an inner side of the arc-shaped square frame (11), a vertical rod (13) is arranged at the upper end of the arc-shaped square frame (11), and the fixing assembly (9) is arranged at the upper end of the vertical rod (13); the grinding assembly (2) comprises a pneumatic grinder (21), the pneumatic grinder (21) is fixed on the side end of the mounting plate (12), a grinding wheel (22) is installed on the rotating shaft of the pneumatic grinder (21), and the dust collecting assembly (3) comprises a fixing assembly (9) and a fixing assembly (9) arranged at the upper end of the vertical rod (13); A dust suction pipe (31) is arranged on the side of the vertical rod (13) and extends downward along the edge of the arc-shaped square frame (11), and the dust suction pipe (31) is fixed to the vertical rod (13) and the arc-shaped square frame (11) through a pipe clamp (32); the lower end of the dust suction pipe (31) is connected to a first flexible pipe (33), and the lower end of the first flexible pipe (33) is connected to a suction nozzle (34); a rotating cylinder (35) is installed on the edge of the arc-shaped square frame (11) for driving the suction nozzle (34) to swing; a sliding assembly (4) is arranged below the arc-shaped square frame (11), and the sliding assembly (4) includes a roller (43) for driving the device to move.

2. A narrow space weld processing device according to claim 1, characterized in that: A vertical plate (14) is fixed in the middle of the arc-shaped square frame (11), and a guide plate (15) is fixed on a side of the vertical plate (14) close to the pneumatic grinder (21), the guide plate (15) is located directly below the pneumatic grinder (21), a branch pipe (36) is connected to the side end of the dust suction pipe (31), and the branch pipe (36) is connected to the arc-shaped square frame (11), and the connection portion is aligned with the lower end of the guide plate (15).

3. The narrow space weld processing device according to claim 1, characterized in that: The sliding assembly (4) comprises two support rods (41). Two through holes are formed at the lower end of the arc-shaped square frame (11). The support rods (41) are inserted into the through holes. Two nuts (42) are threadedly connected to the support rods (41). The two nuts (42) respectively abut against the inner side and the outer side of the arc-shaped square frame (11) to fix the support rods (41). The roller (43) is mounted at the lower end of the support rods (41).

4. A narrow space weld processing device according to claim 2, characterized in that: Two layer plates (16) are fixed on one side of the vertical plate (14) away from the pneumatic grinder (21), the space between the two layer plates (16) is at the same height as the grinding wheel (22), and an argon gas inlet pipe (6) is connected to the upper layer plate (16) for inputting argon gas into the air cavity between the two layer plates (16) for welding protection.

5. A narrow space weld processing device according to claim 4, characterized in that: An air box (7) is fixed to the lower surface of the layer plate (16) located below, a compressed air intake pipe (71) is connected to the air box (7), two flat air nozzles (72) are arranged on both sides of the air box (7), and a square hole (17) is opened on the mounting plate (12), and the square hole (17) is aligned with one of the flat air nozzles (72).

6. A narrow space weld processing device according to claim 5, characterized in that: Telescopic cylinders (8) for improving the stability of the frame assembly (1) are installed on both the left and right sides of the arc-shaped square frame (11), and two rotating wheels (5) are rotatably provided at the ends of the arc-shaped square frame (11).

7. The narrow space weld processing device according to claim 1, characterized in that: The fixing assembly (9) comprises a flat sleeve (91) fixed to the upper side end of the vertical rod (13), a clamping plate (92) being fixed below the flat sleeve (91), a right-angle plate (93) being slidably arranged in the flat sleeve (91), and two fastening bolts (94) being threadedly connected above the flat sleeve (91) for fixing the right-angle plate (93).

8. The narrow space weld processing device according to claim 6, characterized in that: The vertical rod (13) is in a hollow tubular structure, and both ends of the vertical rod (13) are sealed. A plurality of control valves (10) are arranged at the upper end of the vertical rod (13), and a plurality of air pipelines and argon gas delivery pipelines are arranged inside the vertical rod (13). The upper ends of the air pipelines and the argon gas delivery pipelines are respectively connected to the corresponding control valves (10), and the lower ends of the air pipelines are respectively connected to the pneumatic grinder (21), the rotary cylinder (35), the telescopic cylinder (8) and the air box (7). The lower end of the argon gas delivery pipeline is connected to the argon gas inlet pipe (6) to facilitate the input of argon gas from the outside.

9. The narrow space weld processing device according to claim 3, characterized in that: The support rod (41) is sleeved with a spring (44), and the spring (44) is located below the arc-shaped square frame (11). The lower end of the spring (44) abuts against one of the nuts (42). The upper end of the support rod (41) is hinged to two support rods (74), and a second flexible pipe (73) is provided between the flat air nozzle (72) and the air box (7). The lower end of the flat air nozzle (72) is hinged to the support rod (74) at a corresponding position.

Images