Pipe welding auxiliary device

Abstract

The utility model belongs to the technical field of pipe welding, and particularly relates to a pipe welding auxiliary device. Comprising two angle irons, connecting rods are welded to one sides of the two angle irons, sleeves are welded to one ends of the connecting rods, the two sleeves are bolted through a bolt pair, at least one stand column is welded to the side faces of the angle irons, a movable rod is connected to the top end of the stand column in a penetrating mode, one end of the movable rod is in threaded connection with a jackscrew bolt, and the bolt tail of the jackscrew bolt is rotationally connected with a pressing plate. The pipe can be fixed during pipe welding, the situation that the welding quality is affected due to the fact that a welding seam becomes large due to rolling of the pipe is avoided, the welding angle can be adjusted according to needs, and therefore different welding requirements can be met.

Description

Technical Field

[0001] This utility model belongs to the field of pipe welding technology, and in particular relates to a pipe welding auxiliary device. Background Technology

[0002] Pipes are essential materials for enterprise production. When welding pipes, they must first be secured; otherwise, rolling will cause the weld seam to widen, affecting weld quality. Sometimes pipe welding requires a specific angle, most commonly a 90-degree butt joint (one end of the pipe is beveled at 45 degrees) to form a right angle. During pipe installation, some special angles may arise. For example, when installation space is limited, the butt joint angle needs to be adjusted according to the actual situation, but currently there is no suitable welding angle adjustment device. Summary of the Invention

[0003] The purpose of this invention is to provide an auxiliary device for pipe welding to solve the problems existing in the prior art.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A pipe welding auxiliary device includes two angle irons. A connecting rod is welded to one side of each angle iron, and a sleeve is welded to one end of the connecting rod. The two sleeves are bolted together by a bolt pair. At least one column is welded to the side of the angle iron. A movable rod is threaded through the top of the column. A set screw is threaded to one end of the movable rod, and a pressure plate is rotatably connected to the end of the set screw.

[0006] Furthermore, the connecting rod is welded at an angle to the side of the angle iron.

[0007] Furthermore, one end of the sleeve is provided with several teeth, the two sleeves are close to each other at the toothed ends and mesh with each other through the teeth, one of the two sleeves has a scale engraved on the outer wall of the toothed end, and the connecting rod connected to the other sleeve has an indicator strip engraved on it.

[0008] Furthermore, a square tube is welded to the top of the column, and a first nut is welded to the square tube. A fixing bolt is threaded into the first nut, and the end thread of the fixing bolt is connected to the first nut and passes through the square tube.

[0009] Furthermore, the movable rod matches the inner shape of the square tube, the movable rod passes through the square tube and is connected to the top of the column, the end of the fixing bolt abuts against the movable rod, and a second nut is welded to one end of the movable rod.

[0010] Furthermore, the set screw is connected to the movable rod via the second nut, and the end of the set screw is connected to the second nut and then passes through the movable rod. Two baffles are welded to the end of the set screw.

[0011] Furthermore, the pressure plate is L-shaped, with the opening of the L-shaped structure facing vertically downwards. A U-shaped plate is welded to the upper side of the pressure plate, and the tail of the set screw passes through the U-shaped plate. The U-shaped plate is located between two baffles, and the set screw is rotatably connected to the pressure plate through the U-shaped plate and the baffles.

[0012] This utility model has the following beneficial effects:

[0013] 1. This utility model can fix the pipe during welding, preventing the pipe from rolling and causing the weld seam to enlarge, thus affecting the welding quality. It can also adjust the welding angle as needed to adapt to different welding requirements.

[0014] 2. The position of the fixed point can be adjusted by the movable rod and the set screw, so as to adapt to the welding of pipes of different sizes and thus improve applicability.

[0015] 3. The angle can be adjusted and fixed by the meshing action of the two sleeves and their teeth, which facilitates the welding of pipes with angles.

[0016] 4. The pressure plate is L-shaped, which can fix both square and round tubes.

[0017] 5. The structure is simple, easy to manufacture, and quick to operate, thereby improving welding efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the disassembled structure of this utility model.

[0020] Figure 3 This is a utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0021] Figure 4 This is a utility model Figure 2 Enlarged structural diagram at point B.

[0022] Figure 5 This is a schematic diagram of the structure during straight-line welding of this utility model.

[0023] The components are: 1. Angle iron; 2. Connecting rod; 3. Sleeve; 4. Bolt pair; 5. Column; 6. Movable rod; 7. Set screw; 8. Pressure plate; 9. Tooth; 10. Square tube; 11. First nut; 12. Fixing bolt; 13. Second nut; 14. Baffle; 15. U-shaped plate; 16. Scale; 17. Indicator strip. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0025] like Figure 1-5 As shown, a pipe welding auxiliary device includes angle iron 1, there are two angle irons 1, and a connecting rod 2 is welded to one side of each angle iron 1. A sleeve 3 is welded to one end of the connecting rod 2. The two sleeves 3 are bolted together by a bolt pair 4. At least one column 5 is welded to the side of the angle iron 1. A movable rod 6 is threaded through the top of the column 5. A set screw 7 is threaded to one end of the movable rod 6. A pressure plate 8 is rotatably connected to the end of the set screw 7.

[0026] The connecting rod 2 is welded at an angle to the side of the angle iron 1.

[0027] One end of the sleeve 3 is provided with several teeth 9. The ends of the two sleeves 3 with teeth 9 are close to each other and mesh with each other through the teeth 9. One of the two sleeves 3 has a scale 16 engraved on the outer wall of the end with teeth 9. The connecting rod 2 connected to the other sleeve 3 has an indicator strip 17 engraved on it.

[0028] A square tube 10 is welded to the top of the column 5. A first nut 11 is welded to the square tube 10. A fixing bolt 12 is threaded into the first nut 11. The end thread of the fixing bolt 12 is connected to the first nut 11 and then passes through the square tube 10.

[0029] The movable rod 6 is matched with the inner cavity shape of the square tube 10. The movable rod 6 passes through the square tube 10 and is connected to the top of the column 5. The end of the fixing bolt 12 abuts against the movable rod 6. A second nut 13 is welded to one end of the movable rod 6.

[0030] The set screw 7 is threaded to the movable rod 6 through the second nut 13. The end of the set screw 7 is threaded to the second nut 13 and then passes through the movable rod 6. Two baffles 14 are welded to the end of the set screw 7.

[0031] The pressure plate 8 is L-shaped, and the opening of the L-shaped structure of the pressure plate 8 faces vertically downward. A U-shaped plate 15 is welded to the upper side of the pressure plate 8. The tail of the set screw 7 passes through the U-shaped plate 15. The U-shaped plate 15 is located between two baffles 14. The set screw 7 is rotatably connected to the pressure plate 8 through the U-shaped plate 15 and the baffles 14.

[0032] The working principle of this utility model:

[0033] In use, first adjust the included angle of the two angle irons 1 according to the required welding angle. Loosen the bolt assembly 4, and rotate the angle iron 1 to adjust the angle according to the scale 16 indicated by the indicator strip 17 (scale 16 is marked using a protractor). After adjustment, tighten the bolt assembly 4, and the teeth 9 on the two sleeves 3 will mesh with each other. Place the pipes to be joined on the two angle irons 1 respectively, and adjust the position of the movable rod 6 so that the pressure plate 8 is above the pipe (if it is a round pipe, ensure that the pressure plate 8 is directly above the round pipe). Tighten the set screw 7 so that the pressure plate 8 abuts against the outer wall of the pipe. After adjustment, tighten the fixing bolt 12 and the set screw 7 to fix the pipe. After the pipe is fixed, start welding (spot welding can be performed first). After welding is completed, loosen the set screw 7, remove the pipe, and then perform full welding.

[0034] The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention.

[0035] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. A pipe welding auxiliary device, characterized in that, The device includes angle irons, of which there are two. Each angle iron has a connecting rod welded to one side, and a sleeve welded to one end of the connecting rod. The two sleeves are bolted together by a bolt pair. At least one column is welded to the side of the angle iron. A movable rod is threaded through the top of the column. A set screw is threaded to one end of the movable rod, and a pressure plate is rotatably connected to the end of the set screw.

2. The pipe welding auxiliary device according to claim 1, characterized in that, The connecting rod is welded obliquely to the side of the angle iron.

3. The pipe welding auxiliary device according to claim 1, characterized in that, The sleeve has several teeth at one end, and the two sleeves are close to each other and mesh with each other through the teeth. One of the two sleeves has a scale engraved on the outer wall of the end with the teeth, and the connecting rod connected to the other sleeve has an indicator strip engraved on it.

4. The pipe welding auxiliary device according to claim 1, characterized in that, A square tube is welded to the top of the column, and a first nut is welded to the square tube. A fixing bolt is threaded into the first nut, and the end thread of the fixing bolt is connected to the first nut and passes through the square tube.

5. The pipe welding auxiliary device according to claim 4, characterized in that, The movable rod is fitted with the inner cavity shape of the square tube. The movable rod passes through the square tube and is connected to the top of the column. The end of the fixing bolt abuts against the movable rod. A second nut is welded to one end of the movable rod.

6. The pipe welding auxiliary device according to claim 5, characterized in that, The set screw is connected to the movable rod via a second nut. The end of the set screw is connected to the second nut and then passes through the movable rod. Two baffles are welded to the end of the set screw.

7. The pipe welding auxiliary device according to claim 6, characterized in that, The pressure plate is L-shaped with the opening of the L-shaped structure facing vertically downwards. A U-shaped plate is welded to the upper side of the pressure plate, and the tail of the set screw passes through the U-shaped plate. The U-shaped plate is located between two baffles, and the set screw is rotatably connected to the pressure plate through the U-shaped plate and the baffles.

Images