Auxiliary tool for welding inner wall of cylindrical forge piece

Abstract

The utility model discloses a cylindrical forge piece inner wall welding assistive device which comprises a box body and a flange plate, a round opening is formed in the box body, a round plate is installed in the round opening, the flange plate is placed on the round plate, a flange cylinder is placed on the flange plate, fixing structures are installed on the round plate, the number of the fixing structures is not less than four, and the fixing structures are arranged on the box body. The fixing structures are annularly distributed on the circular plate at equal intervals; the fixing structure comprises an electric push rod, a clamping plate, a through hole, a sleeve, a cross rod, a round block and a spring; and the electric push rod is mounted on the circular plate. A flange plate is placed on the circular plate, a flange cylinder is placed on the flange plate, at the moment, the output end of the electric push rod drives the clamping plate to clamp the flange plate, meanwhile, the circular block on the cross rod makes contact with the flange cylinder, the cross rod clamps the flange cylinder through the circular block through the elasticity of the spring in the sleeve, and the flange cylinder is clamped while the flange plate is clamped; at the moment, the internal contact position of the flange plate and the flange cylinder can be manually welded through a welding tool.

Description

Technical Field

[0001] The utility model relates to the technical field of flanges, in particular to an inner wall welding auxiliary tool for cylindrical forgings. Background Art

[0002] A flange, also called a flange convex disk or a flange, is a cylindrical forging, and a flange is a part for connecting shafts to each other and is used for connecting between pipe ends; there are also flanges used at the inlets and outlets of equipment for connecting between two pieces of equipment. During the processing of some flanges, it is necessary to weld the flange disk and the flange cylinder, and a welding auxiliary tool is required. However, the current flange welding auxiliary tool is relatively complex in operation when fixing the flange disk and the flange cylinder. It is necessary to fix the flange disk first and then fix the flange cylinder, which reduces the welding efficiency. Content of the Utility Model

[0003] The purpose of the utility model is to provide an inner wall welding auxiliary tool for cylindrical forgings, which solves the problem that the current flange welding auxiliary tool is relatively complex in operation when fixing the flange disk and the flange cylinder. It is necessary to fix the flange disk first and then fix the flange cylinder, which reduces the welding efficiency.

[0004] To achieve the above purpose, the utility model provides the following technical solution: an inner wall welding auxiliary tool for cylindrical forgings, including a box body and a flange disk. A circular opening is provided on the box body, and a circular plate is installed in the circular opening. The flange disk is placed on the circular plate, and a flange cylinder is placed on the flange disk. A fixing structure is installed on the circular plate, and the number of the fixing structures is not less than four. The fixing structures are annularly and equidistantly distributed on the circular plate;

[0005] The fixing structure includes an electric push rod, a clamping plate, a through hole, a sleeve, a cross bar, a round block and a spring;

[0006] The electric push rod is installed on the circular plate, the clamping plate is installed on the output end of the electric push rod, and the clamping plate clamps the flange disk;

[0007] The through hole is opened on the clamping plate, the sleeve is installed in the through hole, the cross bar is placed in the sleeve, the round block is installed on the cross bar, the spring is installed between the cross bar and the sleeve, and the round block clamps the flange cylinder.

[0008] Preferably, the circular plate is placed in the circular opening, a servo motor is installed in the box body, a U-shaped frame is installed on the circular plate, and the output shaft of the servo motor is connected to the U-shaped frame.

[0009] Preferably, an air port is opened on the circular plate, a circular groove is opened on the side wall of the box body, and an exhaust fan is installed in the circular groove.

[0010] Preferably, an annular part is installed outside the circular plate, an annular groove is opened in the circular opening, and the annular part is slidably connected in the annular groove.

[0011] Preferably, a rubber ring is installed in the circular groove, and the suction fan is inserted into the rubber ring.

[0012] Preferably, a sliding structure is installed between the clamping plate and the circular plate. The sliding structure is correspondingly arranged with the clamping plate and includes a slider and a sliding groove.

[0013] The slider is installed on the clamping plate, the sliding groove is opened on the circular plate, and the slider is slidably connected in the sliding groove.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: The auxiliary welding tool for the inner wall of the cylindrical forging has the following advantages compared with the traditional technology:

[0015] Place the flange on the circular plate, and place the flange cylinder on the flange. At this time, the output end of the electric push rod drives the clamping plate to clamp the flange. At the same time, the circular block on the cross bar contacts the flange cylinder, and through the elasticity of the spring in the sleeve, the cross bar clamps the flange cylinder through the circular block, so that the flange cylinder is clamped while the flange is clamped. At this time, the worker can weld the contact position inside the flange and the flange cylinder through the welding tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is Figure 1 a schematic structural diagram of the electric push rod, the clamping plate and the through hole in

[0018] Figure 3 is Figure 1 a schematic structural diagram of the circular groove, the rubber ring and the suction fan in

[0019] Figure 4 is Figure 1 a schematic structural diagram of the sleeve, the cross bar and the circular block in

[0020] In the figure: 1. Box body, 2. Circular opening, 3. Circular plate, 4. Fixing structure, 401. Electric push rod, 402. Clamping plate, 403. Through hole, 404. Sleeve, 405. Cross bar, 406. Circular block, 407. Spring, 5. Flange, 6. Flange cylinder, 7. Slider, 8. Sliding groove, 9. Air port, 10. Servo motor, 11. U-shaped frame, 12. Ring-shaped part, 13. Ring-shaped groove, 14. Circular groove, 15. Rubber ring, 16. Suction fan. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] 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 creative efforts shall fall within the protection scope of the present utility model.

[0022] By those skilled in the art, the components in this case are connected in sequence. For the specific connection and operation sequence, reference should be made to the following working principle. The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process.

[0023] Currently, the flange welding auxiliary tool is relatively complex in operation when fixing the flange plate and the flange cylinder. It is necessary to first fix the flange plate and then fix the flange cylinder, which reduces the welding efficiency.

[0024] In view of this, the present utility model provides an inner wall welding auxiliary tool for cylindrical forgings. The flange plate is placed on the circular plate, and the flange cylinder is placed on the flange plate. At this time, the output end of the electric push rod drives the clamping plate to clamp the flange plate. At the same time, the round block on the cross bar contacts the flange cylinder, and through the elasticity of the spring in the sleeve, the cross bar clamps the flange cylinder through the round block, so that the flange cylinder is clamped while the flange plate is clamped. At this time, the operator can weld the contact position inside the flange plate and the flange cylinder through the welding tool.

[0025] Please refer to Figures 1-4 , the present utility model provides a technical solution: an inner wall welding auxiliary tool for cylindrical forgings, including a box body 1 and a flange plate 5. A circular opening 2 is provided on the box body 1, and a circular plate 3 is installed in the circular opening 2. The flange plate 5 is placed on the circular plate 3, and a flange cylinder 6 is placed on the flange plate 5. A fixing structure 4 is installed on the circular plate 3. The number of the fixing structures 4 is not less than four, and the fixing structures 4 are annularly and equidistantly distributed on the circular plate 3;

[0026] The fixing structure 4 includes an electric push rod 401, a clamping plate 402, a through hole 403, a sleeve 404, a cross bar 405, a round block 406 and a spring 407;

[0027] The electric push rod 401 is installed on the circular plate 3. The electric push rod 401 is powered on and works. The electric push rod 401 is controlled by the same switch. The clamping plate 402 is installed on the output end of the electric push rod 401, and the clamping plate 402 clamps the flange plate 5;

[0028] The through hole 403 is opened on the clamping plate 402. The sleeve 404 is installed in the through hole 403. The cross bar 405 is placed in the sleeve 404. The round block 406 is installed on the cross bar 405. The spring 407 is installed between the cross bar 405 and the sleeve 404. The round block 406 clamps the flange tube 6. Place the flange plate 5 on the round plate 3 and place the flange tube 6 on the flange plate 5. At this time, the output end of the electric push rod 401 drives the clamping plate 402 to clamp the flange plate 5. At the same time, the round block 406 on the cross bar 405 contacts the flange tube 6. Through the elasticity of the spring 407 in the sleeve 404, the cross bar 405 clamps the flange tube 6 through the round block 406, so that the flange plate 5 and the flange tube 6 are clamped at the same time. At this time, the operator can weld the contact position inside the flange plate 5 and the flange tube 6 with a welding tool.

[0029] The round plate 3 is placed in the round opening 2. A servo motor 10 is installed in the box body 1. The servo motor 10 is powered on and works. A U-shaped frame 11 is installed on the round plate 3. The output shaft of the servo motor 10 is connected to the U-shaped frame 11. An annular member 12 is installed outside the round plate 3. An annular groove 13 is opened in the round opening 2. The annular member 12 is slidably connected in the annular groove 13. The output shaft of the servo motor 10 drives the round plate 3 to slowly rotate in the round opening 2 through the U-shaped frame 11. The round plate 3 drives the annular member 12 to rotate along the annular groove 13, so that the clamped flange plate 5 and flange tube 6 rotate, which is convenient for the welding tool to process.

[0030] An air port 9 is opened on the round plate 3. The U-shaped frame 11 is designed with front and rear hollowed-out. A round groove 14 is opened on the side wall of the box body 1. An exhaust fan 16 is installed in the round groove 14. An external activated carbon filter plate can be inserted into the air inlet of the exhaust fan 16. The exhaust fan 16 is powered on and works. The power can be selected according to the actual use situation. A rubber ring 15 is installed in the round groove 14. The exhaust fan 16 is inserted into the rubber ring 15. The exhaust fan 16 is inserted into the rubber ring 15 in the round groove 14. During the welding process of the flange plate 5 and the flange tube 6 with the welding tool, the exhaust fan 16 sucks air, so that the box body 1 is in negative pressure. Then the smoke generated by the welding tool is drawn out through the air port 9 on the round plate 3. The air can be purified by the activated carbon filter plate in the exhaust fan 16, and the clean air is discharged to avoid polluting the environment.

[0031] A sliding structure is installed between the clamping plate 402 and the round plate 3. The sliding structure is correspondingly arranged with the clamping plate 402. The sliding structure includes a slider 7 and a chute 8;

[0032] The slider 7 is installed on the clamping plate 402. The chute 8 is opened on the round plate 3. The slider 7 is slidably connected in the chute 8. When the clamping plate 402 moves, it drives the slider 7 to slide along the chute 8.

[0033] When using the inner wall welding auxiliary tool for the cylindrical forging, first, manually insert the exhaust fan 16 into the rubber ring 15 in the circular groove 14, and insert an external activated carbon filter plate into the air inlet of the exhaust fan 16. Place the flange plate 5 on the circular plate 3, and place the flange cylinder 6 on the flange plate 5. At this time, the output end of the electric push rod 401 drives the clamping plate 402 to clamp the flange plate 5. At the same time, the circular block 406 on the cross bar 405 contacts the flange cylinder 6, and through the elasticity of the spring 407 in the sleeve 404, the cross bar 405 clamps the flange cylinder 6 through the circular block 406, so as to clamp the flange cylinder 6 while clamping the flange plate 5. At this time, the operator can weld the contact position inside the flange plate 5 and the flange cylinder 6 through a welding tool. The output shaft of the servo motor 10 drives the circular plate 3 to slowly rotate in the circular opening 2 through the U-shaped frame 11, and the circular plate 3 drives the annular part 12 to rotate along the annular groove 13, so that the clamped flange plate 5 and the flange cylinder 6 rotate, which is convenient for the welding tool to process. At this time, the exhaust fan 16 sucks air, so that a negative pressure is generated in the box body 1. Then, the fumes generated by the welding tool are extracted through the air port 9 on the circular plate 3, and the air can be purified by the activated carbon filter plate in the exhaust fan 16, and the clean air is discharged to avoid polluting the environment.

[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An inner wall welding auxiliary tool for a cylindrical forging, comprising a box body (1) and a flange plate (5), characterized in that: A circular opening (2) is provided on the box body (1), a circular plate (3) is installed in the circular opening (2), a flange plate (5) is placed on the circular plate (3), a flange cylinder (6) is placed on the flange plate (5), a fixing structure (4) is installed on the circular plate (3), the number of the fixing structures (4) is not less than four, and the fixing structures (4) are annularly and equidistantly distributed on the circular plate (3); The fixing structure (4) includes an electric push rod (401), a clamping plate (402), a through hole (403), a sleeve (404), a cross bar (405), a round block (406) and a spring (407); The electric push rod (401) is installed on the circular plate (3), the clamping plate (402) is installed on the output end of the electric push rod (401), and the clamping plate (402) clamps the flange plate (5); The through hole (403) is opened on the clamping plate (402), the sleeve (404) is installed in the through hole (403), the cross bar (405) is placed in the sleeve (404), the round block (406) is installed on the cross bar (405), the spring (407) is installed between the cross bar (405) and the sleeve (404), and the round block (406) clamps the flange cylinder (6).

2. The inner wall welding auxiliary tool for a cylindrical forging according to claim 1, characterized in that: The circular plate (3) is placed in the circular opening (2), a servo motor (10) is installed in the box body (1), a U-shaped frame (11) is installed on the circular plate (3), and the output shaft of the servo motor (10) is connected to the U-shaped frame (11).

3. The inner wall welding auxiliary tool for a cylindrical forging according to claim 1, wherein: An air port (9) is opened on the circular plate (3), a circular groove (14) is opened on the side wall of the box body (1), and an exhaust fan (16) is installed in the circular groove (14).

4. The inner wall welding auxiliary tool for a cylindrical forging according to claim 2, characterized in that: An annular member (12) is installed outside the circular plate (3), an annular groove (13) is opened in the circular opening (2), and the annular member (12) is slidably connected in the annular groove (13).

5. The inner wall welding auxiliary tool for a cylindrical forging according to claim 3, characterized in that: A rubber ring (15) is installed in the circular groove (14), and the exhaust fan (16) is inserted into the rubber ring (15).

6. The inner wall welding auxiliary tool for a cylindrical forging according to claim 1, characterized in that: A sliding structure is installed between the clamping plate (402) and the circular plate (3), the sliding structure is correspondingly arranged with the clamping plate (402), and the sliding structure includes a slider (7) and a sliding groove (8); The slider (7) is installed on the clamping plate (402), the sliding groove (8) is opened on the circular plate (3), and the slider (7) is slidably connected in the sliding groove (8).

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