Shaping and welding device for rolled pipe body

Abstract

The utility model discloses a shaping and welding device for a rolled pipe body, the rolled pipe body is provided with side edges to be connected and welded, the shaping and welding device is jointly connected with the side edges to be connected of the rolled pipe body, and the side edges on the two sides are driven to oppositely get close to each other and are located on the same arc line. The shaping and welding device is a U-shaped frame which is clamped on the two side edges of the rolled pipe body in a sleeving mode at the same time, puller bolts making contact with the peripheral faces of the side edges of the two sides correspondingly penetrate through the U-shaped frame, and distance plates making contact with the side edges of the two sides are vertically arranged in the middle of the interior of the U-shaped frame. The shaping and welding device can be jointly connected with the to-be-connected side edges of the rolled pipe body through the U-shaped frame, the side edges on the two sides are driven to be close to each other oppositely and are located on the same arc line, and the problem that height deviation exists after the side edges on the two sides of the pipe body are driven to be close to each other oppositely at present is solved. And through the distance fixing plate, it can be guaranteed that the distance is fixed after the connected side edges are close to each other, the consistency of the distance in the length direction of the pipe body is guaranteed, and then the forming quality of the welded pipe body can be further guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of rolled tube welding and forming, and in particular to a rolled tube shaping welding device. Background Art

[0002] The rolled pipe body is a tube with a specified shape and size that is rolled into a sheet by a rolling device. The rolled pipe body is widely used in petroleum, chemical, natural gas transportation, piling, and urban water supply, heating, gas supply and other projects. The rolled pipe body can connect multiple pipe sections together by welding or riveting to form a complete pipeline system. The advantage of the rolled pipe body is that it can be customized according to actual needs, has high flexibility, and also has high load-bearing capacity and durability. Because titanium materials have good corrosion resistance, the pipe body rolled from titanium plates is widely used in the petrochemical industry.

[0003] At present, after the sheet is rolled into a tube, the two sides of the tube need to be welded (as shown in the attached manual). Figure 1 The tube body rolling and welding process is shown in the figure). During welding, due to the stress of the rolled tube body, there is a large gap on both sides to be welded ( Figure 1 As shown in the middle figure), external force needs to be applied from both sides (as shown by the opposite arrows in the figure) to drive the two sides to be close or in contact and then perform welding operations in the length direction.

[0004] In the actual process of applying external force, due to the different directions of the external force applied on both sides, there is a height deviation after the two sides are close to each other ( Figure 2 The state shown in the figure will affect the flatness of the inner and outer surfaces of the pipe body after welding, and also affect the welding strength; and the problem of inconsistent spacing between the two sides after external force is applied ( Figure 3 The spacing shown on the left side is still too large, and the spacing shown on the right side is too small). At the same time, the gap observed in the axial direction still has the problem of inconsistency at both ends ( Figure 4 As shown), it will affect the roundness of the tube body, the consistency of the inner diameter along the length of the tube body, and the welding strength. Summary of the invention

[0005] In response to the above-mentioned problems, the present application aims to provide a shaping welding device for a rolled pipe body, which can drive the side edges on both sides to approach each other and be on the same arc line, thereby solving the current problem of height deviation after driving the side edges from both sides of the pipe body to approach each other, and achieving a fixed distance after the connected side edges are close, thereby further ensuring the forming quality of the pipe body after welding.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted in the present application is as follows: a shaping welding device for a rolled tube body, wherein the rolled tube body has sides to be connected and welded, characterized in that the shaping welding device is connected to the sides of the rolled tube body to be connected, and drives the two side sides to approach each other and be on the same arc line, and the shaping welding device drives the two side sides to distance the welding seam along the length direction.

[0007] Preferably, the shaping welding device is a U-shaped frame that is simultaneously clamped on both side edges of the rolled tube body, and the U-shaped frame is correspondingly provided with tightening bolts that are in contact with the peripheral surface of the side edges on each side.

[0008] Preferably, a distance plate in contact with the side edges on both sides is vertically arranged in the middle of the U-shaped frame.

[0009] Preferably, an anti-wear block is rotatably arranged at the bottom end of the tightening bolt.

[0010] The beneficial effects of the present application are: the shaping welding device can be connected to the side of the rolled tube body to be connected through the U-shaped frame, and drive the two side sides to approach each other and be on the same arc, solving the problem of height deviation after the sides are driven to approach each other from both sides of the tube body. And through the spacing plate, it can ensure that the distance between the connected sides is achieved after approaching, and the consistency of the spacing along the length direction of the tube body, thereby further ensuring the forming quality of the tube body after welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a diagram showing the current process of forming a rolled tube body through sheet rolling and welding.

[0012] Figure 2 This is a diagram showing the side height difference when the sides of the rolled pipe are butt-jointed.

[0013] Figure 3 The illustration shows that the spacing between the sides of the rolled pipe is too large or too small when they are butt-jointed.

[0014] Figure 4 This is an illustration of the inconsistent spacing along the length of the tube when the sides of the rolled tube are butt-jointed.

[0015] Figure 5 This is a front view structural diagram of the welding device for this application.

[0016] Figure 6 This is a side view of the structure of the welding device for this application.

[0017] Figure 7 For this application, the welding device is sleeved on the butt joint side as shown in the figure.

[0018] Figure 8 For this application Figure 7Basically, push the two sides together and compress the icon.

[0019] Fig. 9 For this application Figure 7 Top view.

[0020] Fig.10 For this application, the distance plate realizes the distance diagram with the sides connected.

[0021] Fig.11 For this application, an anti-wear block is provided at the bottom end of the tightening bolt as shown in the figure.

[0022] Fig.12 This is a physical picture of the current rolled pipe body welding forming. DETAILED DESCRIPTION

[0023] In order to enable ordinary technicians in the field to better understand the technical solution of the present application, the technical solution of the present application is further described below in conjunction with the accompanying drawings and embodiments.

[0024] See attached Figures 1 to 11 A shaping welding device for a rolled tube body is shown, wherein the rolled tube body 1 has a side 1a to be connected and welded, and the tube body can be formed by driving the two side sides close to each other and then welding. In order to solve the problem that the sides of the rolled tube body are difficult to accurately connect during welding, which affects the quality of the tube body forming, the present application is designed with a shaping welding device, which can be connected to the side 1a to be connected of the rolled tube body 1, and drives the two side sides 1a to approach each other and be on the same arc line, thereby solving the problem of height deviation after driving the side sides 1a from both sides of the tube body to approach each other. The shaping welding device drives the two side sides 1a to distance the welding seam along the length direction, which can ensure that the distance is achieved after the connected side sides 1a are close, and the consistency of the spacing along the length direction of the tube body, thereby further ensuring the quality of the tube body forming after welding.

[0025] Specifically, Figure 5-9As shown, the shaping welding device is a U-shaped frame 2 that is simultaneously clamped on the two side edges 1a of the rolled tube body 1, and a corresponding tightening bolt 3 is pierced on the U-shaped frame 2 to contact the circumference of the side edge 1a on each side. During operation, the U-shaped frame 2 is clamped on the two side edges 1a from the side of the tube body at the same time, and then the sides are driven to approach each other from both sides of the tube body. After approaching to the designed spacing, the tightening bolts 3 on both sides are rotated to contact and press the circumference of the side edges. Since the two side edges are pressed and flat against the inner bottom surface of the U-shaped frame 2, after pressing, the two side edges can be placed on the same arc, solving the problem of height difference between the two side edges. It is preferred that two U-shaped frames are used at the same time, respectively clamped at the two ends of the tube body, so that the consistency of the joints along the length direction of the tube body can be achieved from both sides of the tube body. During welding, the connected side edges 1a are welded from the exposed portion between the U-shaped frames 2 on both sides. After the welding of this portion is completed, the U-shaped frames 2 at both ends can be removed and additional welding can be performed on the position, thereby achieving precise welding operation of the rolled tube body and ensuring the forming quality of the tube body.

[0026] In order to achieve the precise spacing of the side edges 1a of the rolled tube body after they are close together (usually a certain gap is left at the side edges to facilitate the integration of solder and improve the welding strength), as Fig.10 As shown, a distance plate 4 in contact with the side edges 1a on both sides is vertically arranged in the middle of the U-shaped frame 2. The distance plate 4 preferably has a thickness equal to the reserved gap of the designed side edges 1a. When operating, the side edges 1a on both sides are driven close to each other and then attached to the two sides of the distance plate 4, and then tightened by the jacking bolts 3, so that the consistency of the side spacing can be maintained and the welding strength can be improved.

[0027] In the above-mentioned process of contacting and tightening the side peripheral surface by rotating the tightening bolt 3, the contact rotation of the tightening bolt 3 will cause wear on the side peripheral surface, affecting the surface quality of the pipe body. Therefore, in order to solve this problem, Fig.11 As shown, an anti-wear block 5 is also rotatably provided at the bottom end of the jacking bolt 3. During the tightening process of the rotating jacking bolt 3, the anti-wear block 5 and the side peripheral surface are relatively stationary through contact friction, which does not affect the rotating tightening of the jacking bolt 3, thereby solving the problem of rotational tightening wear on the surface of the pipe body.

[0028] The principle of the present application is: during operation, the U-shaped frame 2 is simultaneously clamped on the side edges 1a on both sides from the side edges of the tube body, and then the side edges are driven toward each other from both sides of the tube body, and the side edges 1a are made to be in contact with the two side surfaces of the distance plate 4, and then after being tightened by the tightening bolts 3, the connected side edges 1a are welded from the exposed part between the U-shaped frames 2 on both sides, and after the welding of this part is completed, the U-shaped frames 2 at both ends can be removed, and the position can be supplemented with welding, thereby realizing the precise welding operation of the rolled tube body and ensuring the forming quality of the tube body.

[0029] The above shows and describes the basic principles, main features and advantages of the present application. Without departing from the spirit and scope of the present application, the present application may have various changes and improvements, which fall within the scope of the present application to be protected.

Claims

1. A shaping welding device for a rolled tube, wherein the rolled tube (1) has sides (1a) to be joined and welded, characterized in that: The shaping welding device is connected to the side edge (1a) of the rolled tube body (1) to be connected, and drives the two side edges (1a) to approach each other and be on the same arc line, and the shaping welding device drives the two side edges (1a) to be spaced along the length direction of the welding seam; The shaping welding device is a U-shaped frame (2) that is simultaneously clamped on the two side edges (1a) of the rolled tube body (1), and a tightening bolt (3) that contacts the circumference of the side edge (1a) on each side is correspondingly penetrated on the U-shaped frame (2).

2. The shaping welding device according to claim 1, characterized in that: A distance plate (4) in contact with the side edges (1a) on both sides is vertically arranged in the middle of the U-shaped frame (2).

3. The shaping welding device according to claim 2, characterized in that: An anti-wear block (5) is also rotatably arranged at the bottom end of the tightening bolt (3).

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