Concentric auxiliary welding tool for titanium flanging workpiece

Abstract

The utility model discloses a concentric auxiliary welding tool for a titanium flanged workpiece, the titanium flanged workpiece is composed of a ring piece and a barrel piece which are of a flat plate structure, the ring piece and the barrel piece are concentrically connected in a sleeved mode through the welding tool, the ring piece and the barrel piece are driven to be in welding contact through the welding tool, and the welding tool can drive the ring piece and the barrel piece to rotate synchronously. The welding tool comprises a base and a conical column rotationally arranged on the base, and the inner hole diameter of the ring piece is between the outer diameters of the upper end and the lower end of the conical column. According to the concentric auxiliary welding tool, concentric positioning of the barrel piece and the ring piece can be achieved, meanwhile, the barrel piece and the ring piece make contact and can be in the connection state of welding operation, and the problems that errors exist in concentricity of manual observation at present, and the barrel piece is prone to deflection during welding are solved. And meanwhile, the welding tool can drive the ring piece and the barrel piece to rotate synchronously, welding personnel can conveniently complete circumferential welding of the ring piece and the barrel piece in the state that the position of a welding gun is kept unchanged, and batch welding operation can be achieved conveniently.

Description

Technical Field

[0001] The present application relates to the technical field of welding and forming of titanium flanging workpieces, and in particular to a concentric auxiliary welding tool for titanium flanging workpieces. Background Art

[0002] Titanium is widely used in chemical industry, petroleum, aviation and medical field due to its corrosion resistance, high temperature resistance and high strength, such as titanium pipes in chemical industry and petroleum, engine manufacturing in aviation field, orthopedic treatment in medical field.

[0003] At present, titanium is widely used in pipeline transportation in the chemical industry because it has better corrosion resistance and easy processing than other metals. Pipelines usually need to be laid and connected according to the on-site space. Pipe connections are usually made by bending pipes or titanium flanging parts. Bends are formed by bending in one piece, while titanium flanging parts are usually welded by rings and cylinders of flat structure (as shown in the attached manual). Figure 1 The structure shown in the figure is that the cylinder is used for welding and connecting with the pipeline, while the ring is usually provided with a flange hole, which is bolted to the titanium flange on the other side of the pipe body. The connection of the flange can effectively adjust the influence of the axial deviation of the pipelines on both sides during laying, realize the smooth connection of the pipelines, and also facilitate the splicing of the pipelines, reducing the difficulty of making and transporting longer pipelines.

[0004] At present, when titanium flanging workpieces are manufactured, after the ring and the cylinder are formed, the ring and the cylinder are usually manually welded in an annular direction. The welding method is as follows: Figure 2 As shown, the ring is placed on a welding operation table (not shown in the figure), and then the cylinder is placed on the ring. After the inner hole of the cylinder is aligned with the middle hole on the ring, the outer sides of the two are connected by circumferential welding. However, during welding, there is an error in the axial concentricity of the cylinder and the ring ( Figure 3 As shown in the figure), it affects the hole alignment and connection between the titanium flanges in the later stage; at the same time, during circumferential welding, since the cylinder and the ring are usually not relatively positioned, it is very easy to cause the cylinder to shift relative to the ring during the welding process ( Figure 3 As shown), therefore, there is a certain scrap rate when manually welding titanium flanging workpieces, which increases production costs. Summary of the invention

[0005] In response to the above-mentioned problems, the present application aims to provide a concentric auxiliary welding tool for titanium flanging workpieces, which can achieve concentric positioning of the cylinder and the ring, and at the same time make the two contact and be in a connected state for welding operation, thereby solving the problem of errors in the current manually observed concentricity and the problem of easy deflection of the cylinder during welding.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted in the present application is as follows: a concentric auxiliary welding tool for a titanium flanging workpiece, wherein the titanium flanging workpiece is composed of a ring and a cylinder with a flat structure, and is characterized in that: the welding tool concentrically sleeves the ring and the cylinder and drives the ring and the cylinder to be in welding contact, and the welding tool drives the ring and the cylinder to rotate synchronously.

[0007] Preferably, the welding tool comprises a base and a conical column rotatably arranged thereon, and the inner diameter of the ring is between the outer diameters of the upper and lower ends of the conical column.

[0008] Preferably, a flexible concentric positioning member is circumferentially embedded in the outer wall of the top of the conical column and abuts against the inner wall of the cylinder.

[0009] Preferably, an elastic compression member in contact with the plane of the ring member is provided on the outer sleeve of the bottom of the conical column.

[0010] The beneficial effect of the present application is that the concentric auxiliary welding tool can achieve concentric positioning of the cylinder and the ring, and at the same time make the two contact and be in a connected state for welding operation, thereby solving the problem of errors in the current concentricity observed manually and the problem that the cylinder is easy to deflect during welding.

[0011] At the same time, the welding tool can drive the ring and the cylinder to rotate synchronously. The welder can easily complete the circumferential welding of the two while keeping the welding gun position unchanged, which is convenient for batch welding operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is an illustration of the welding forming of titanium flanging workpiece.

[0013] Figure 2 This is a diagram of the current titanium flanging workpiece welding process.

[0014] Figure 3 This is a diagram showing the relative deflection between the cylinder and the ring during welding.

[0015] Figure 4 This is a diagram of the concentric auxiliary welding tooling structure of this application.

[0016] Figure 5 This is a diagram showing a ring being inserted into the concentric auxiliary welding tooling for this application.

[0017] Figure 6 For this application Figure 5 The base is inserted into the cylinder as shown in the figure.

[0018] Figure 7 For this application Figure 6 Enlarged view of the cross-sectional structure at point A.

[0019] Figure 8This is a diagram showing that when the ring is inserted into the present application, there is axial deflection between the tapered column and the cylinder.

[0020] Fig. 9 This is a diagram showing the structure of an elastic compression member that is in flat contact with a ring member in the present application.

[0021] Fig.10 For the present application, a ring member and a cylinder member are sequentially and flatly inserted into the elastic compression member as shown in the figure. DETAILED DESCRIPTION

[0022] 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.

[0023] Refer to the attached Figures 1 to 10 The concentric auxiliary welding tool for a titanium flanging workpiece is shown, wherein the titanium flanging workpiece is formed by welding a ring member 1 and a cylinder member 2 of a flat plate structure, as shown in FIG. Figure 1-2 In order to solve the concentricity error between the cylinder and the ring when the titanium flanging workpiece is currently welded manually, and the displacement problem of the cylinder during welding, the present application designs a concentric auxiliary welding tool, which can concentrically sleeve the ring 1 and the cylinder 2 and drive the ring 1 and the cylinder 2 to be welded and contacted, and realize the concentric positioning of the cylinder 2 and the ring 1 through the concentric sleeve, and at the same time make the two contact and be in a connected state for welding operation, so as to solve the problem that the concentricity error in the current manual observation exists and the cylinder 2 is easy to deflect during welding.

[0024] After the above-mentioned concentric positioning, in order to facilitate circumferential welding, the welding tool can drive the ring 1 and the cylinder 2 to rotate synchronously, that is, the welder can conveniently complete the circumferential welding of the two by driving the ring 1 and the cylinder 2 to rotate while keeping the welding gun in the same position. After the welding is completed, since the welding tool is connected to the ring 1 and the cylinder 2 by a sleeve connection, the welded titanium flange part and the welding tool can be quickly disassembled, which is convenient for batch welding operations.

[0025] Specifically, Figure 4-6 As shown, the welding tool comprises a base 3 and a conical column 4 rotatably arranged thereon, and the inner diameter of the ring 1 is between the outer diameters of the upper and lower ends of the conical column 4. During operation, the ring 1 is inserted from the top of the conical column 4. During the continuous insertion process, the inner wall of the bottom end of the ring 1 is in circumferential contact with the outer wall of the conical column 4 to achieve concentric positioning. Then, the cylinder 2 is inserted into the conical column 4 and contacts the surface of the ring 1, and then the conical column 4 is rotated to achieve circumferential welding of the outer walls of the two.

[0026] In order to achieve the concentric positioning of the cylinder 2, as Figure 4 , 7As shown, a flexible concentric positioning member 5 is circumferentially embedded in the outer wall of the top of the tapered column 4 and abuts against the inner wall of the cylinder 2. The flexible concentric positioning member 5 is preferably a rubber ring. In the process of inserting the cylinder 2, the cylinder 2 is driven to overcome the contact friction with the flexible concentric positioning member 5, so that the cylinder 2 moves down and contacts the surface of the ring 1. Then, through the circumferential contact between the flexible concentric positioning member 5 and the cylinder 2, the concentric positioning of the cylinder 2 and the ring 1 can be achieved, thereby improving the welding quality and reducing the scrap rate.

[0027] like Figure 8 As shown, during the process of inserting the ring 1, since the ring 1 is usually a thin plate structure, there will be axial deviation between the ring 1 and the tapered column 4, which will affect the concentricity and circumferential spacing with the cylinder 2. Therefore, in order to solve this problem, Figure 9-10 As shown, an elastic compression member 6 in plane contact with the ring 1 is provided on the bottom of the tapered column 4. The elastic compression member 6 is preferably a spring. During the insertion of the ring 1, the elastic compression member 6 is in an extended state when not under force. The ring 1 is preferably in flat contact with the surface of the elastic compression member 6, effectively ensuring that the ring 1 is in a horizontal state. Then the cylinder 2 is inserted to drive it to overcome the contact friction with the flexible concentric positioning member 5 until the inner hole of the ring 1 contacts the outer wall of the tapered column 4. The elastic compression member 6 is in a compressed state through the contact friction between the cylinder 2 and the flexible concentric positioning member 5, and the ring 1 and the tapered column 4 are in a contact and concentric positioning state. In this state, the tapered column 4 can be rotated to achieve circumferential welding. After the welding is completed, the cylinder 2 is driven to overcome the contact friction with the flexible concentric positioning member 5, so that the formed titanium flanging part can be disassembled from the welding tooling, and the elastic compression member 6 is reset, and then the continuous welding operation of the next titanium flanging part can be carried out.

[0028] The principle of the present application is: when performing the welding operation of the titanium flanging part, first insert the ring 1 onto the conical column 4, and make the ring 1 contact flatly with the surface of the elastic compression part 6, then insert the cylinder 2, drive it to overcome the contact friction with the flexible concentric positioning part 5, until the inner hole of the ring 1 contacts the outer wall of the conical column 4, the elastic compression part 6 is in a compressed state through the contact friction between the cylinder 2 and the flexible concentric positioning part 5, and the conical column 4 can be rotated in this state to realize the circumferential welding of the titanium flanging part.

[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 concentric auxiliary welding tool for a titanium flanging workpiece, wherein the titanium flanging workpiece is composed of a ring member (1) and a cylinder member (2) of a flat plate structure, and is characterized in that: The welding tool concentrically sleeves the ring member (1) and the cylinder member (2) and drives the ring member (1) and the cylinder member (2) to be in welding contact, and the welding tool drives the ring member (1) and the cylinder member (2) to rotate synchronously; The welding tool comprises a base (3) and a conical column (4) rotatably arranged thereon, and the inner diameter of the ring member (1) is between the outer diameters of the upper and lower ends of the conical column (4); A flexible concentric positioning member (5) is circumferentially embedded in the outer wall of the top of the conical column (4) and abuts against the inner wall of the cylinder (2).

2. The welding tool according to claim 1, characterized in that: An elastic compression member (6) is provided on the outer sleeve of the bottom of the conical column (4) and is in plane contact with the ring member (1).

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