Assembly fixing device for thin-walled tube welding

Abstract

The utility model provides an assembly fixing device for thin-walled tube welding, which belongs to the technical field of welding tools and comprises two fastening tubes, a connecting tube is arranged between the fastening tubes, and the upper end and the lower end of the connecting tube are fixedly connected with the fastening tubes. The fastening pipe and the connecting pipe are both provided with adjusting openings communicating with each other. A plurality of welding holes are formed in the connecting pipe; the fastening pipe is provided with locking structures used for locking the thin-wall pipe fitting, the locking structures are located on the two sides of the adjusting opening, the defects in the prior art are overcome by arranging a simple and light structure, the thin-wall pipe fitting can be effectively clamped in the whole welding process, and due to the fact that the structure is simple and convenient, the straightness is guaranteed, and meanwhile the welding quality is improved. In the welding process, no extra interference is generated to operators, and therefore the welding quality is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of welding tooling, specifically relates to a set up fixing device for thin wall pipe welding. BACKGROUND

[0002] For the welding of pipe fittings, reliable clamping of the pipe fittings is the key to ensuring the welding quality.

[0003] The existing clamping fixing device, especially when welding thin wall pipe fittings, due to the poor clamping effect, causes the welding quality to be not high, and is prone to deformation in the welding process, and it is difficult to guarantee the straightness of welding, so that the yield is low in mass production, and the thin wall pipe fitting forming does not meet the requirements. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of set up fixing devices for thin wall pipe welding, by setting up a simple and light structure, so that thin wall pipe fittings are effectively clamped and clamped in the whole welding process, and due to simple structure, in the guarantee straightness, in the welding process, additional interference to operator is not generated, so as to guarantee welding quality, and the lighter weight in mass production also makes that device will not additional burden to operator, further guarantee the quality and yield of welding.

[0005] To achieve the above purpose, the utility model provides a kind of set up fixing device for thin wall pipe welding, including two fastening tubes, the connecting pipe is arranged between the fastening tube, the both ends of the connecting pipe are fixedly connected with fastening tube;

[0006] The adjusting port is formed in the fastening tube and the connecting pipe and is communicated with each other;

[0007] A plurality of welding holes are formed in the connecting pipe.

[0008] Locking structure for locking thin wall pipe fittings is arranged on the fastening tube, and the locking structure is located on the both sides of the adjusting port.

[0009] Further, the inner diameter of the connecting pipe and the fastening tube is same, and the wall thickness of the connecting pipe is less than the wall thickness of the fastening tube.

[0010] Further, the number of welding holes is four, and it is evenly distributed on the side wall of the connecting pipe along the circumference.

[0011] Further, the shape of the welding hole is rounded rectangular.

[0012] Further, the locking structure includes two groups of symmetrically arranged connecting ears and fastening bolts, one connecting ear is arranged at the head end and tail end of each fastening tube, and the connecting ear is fixedly connected through the fastening bolt.

[0013] The utility model provides this kind of group fixing device for thin wall pipe welding, make two thin wall pipe fittings can always keep clamping state in the welding process, cooperate clamping tool use simultaneously, make thin wall pipe fittings do not happen deformation when welding, guarantee the straightness of welding, effectively improve the forming standard and quality of welding, lighter quality does not cause the welding quality problem of the excessive labor burden of operating personnel when mass production.

[0014] The utility model will be described in detail below in combination with the drawings and examples. DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structure schematic diagram of the utility model.

[0016] Figure 2 It is the use state schematic diagram of the utility model.

[0017] Mark explanation: 1, fastening pipe; 2, connecting pipe; 3, welding hole; 4, locking structure; 41, connecting lug; 42, fastening bolt; 5, adjusting mouth; 6, thin wall pipe fitting; 7, weld seam to be welded. DETAILED DESCRIPTION

[0018] In order to further explain the technical means and effects taken by the utility model to achieve the predetermined purpose, the specific implementation, structural features and effects of the utility model will be described in detail below in combination with the drawings and examples.

[0019] The technical solutions in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0020] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "alignment", "overlap", "bottom", "inner", "outer" and the like is the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.

[0021] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of such features; and in the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0022] Example 1

[0023] This embodiment provides Figures 1-2 The illustrated assembly and fixing device for thin-walled pipe welding comprises two fastening pipes 1, with a connecting pipe 2 disposed between the fastening pipes 1. The upper and lower ends of the connecting pipe 2 are fixedly connected to the fastening pipes 1. The connecting pipe 2 connects the two fastening pipes 1 into a whole to form a fixing device.

[0024] The fastening pipe 1 and the connecting pipe 2 are both provided with regulating ports 5 that are in communication with each other;

[0025] The connecting pipe 2 is provided with a plurality of welding holes 3;

[0026] A locking structure 4 for locking the thin-walled pipe fittings 6 is provided on the fastening tube 1. The locking structure 4 is located on both sides of the adjustment port 5. A welding hole 3 for welding is opened on the side wall of the fixing device, i.e., the connecting pipe 2. Finally, the entire device fastens and locks the two thin-walled pipe fittings 6 through the locking structure 4.

[0027] Furthermore, the connecting tube 2 has the same inner diameter as the fastening tube 1, and the wall thickness of the connecting tube 2 is smaller than the wall thickness of the fastening tube 1. The same inner diameter ensures that the fastening tube 1 and the connecting tube 2 always maintain the same deformation stroke. By reducing the wall thickness of the connecting tube 2, the weight of the entire fixing device can be effectively reduced, while also avoiding the visual impact of the larger wall thickness on the operator during the welding process.

[0028] Furthermore, there are four welding holes 3 , which are evenly distributed along the circumference on the side wall of the connecting pipe 2 .

[0029] Furthermore, the shape of the welding hole 3 is a rounded rectangle.

[0030] The four welding holes 3 enable the two thin-walled pipe fittings 6 to be welded through the welding holes 3 when an operator preliminarily welds the two thin-walled pipe fittings 6, the rectangular welding holes 3 can increase the operation area of welding, so that the welding of the thin-walled pipe fittings 6 is more convenient and is not affected, and the round corners can avoid unnecessary injuries to the operator caused by sharp settings, the four welding holes 3 enable the welding area to be larger when the segment welding is performed, the pipe fittings are more tightly fixed after the welding is completed, deformation or a welding surface is not firm during conveying does not occur due to the segment welding not being firm, and the existing device does not interfere with the operator, and the segment welding of the other side can be simply performed by simply rotating the entire device and the pipe fittings, so that the displacement deviation is not generated.

[0031] Further, as shown in Figure 1 The locking structure 4 includes two groups of symmetrically arranged connecting ears 41 and fastening bolts 42, one connecting ear 41 is arranged at the head end and the tail end of each fastening pipe 1, the two connecting ears 41 are fixedly connected through the fastening bolts 42, the locking structure 4 is used for locking and fixing the entire fixing device, and one connecting ear 41 is arranged at the head end and the tail end of each fastening pipe 1. After the thin-walled pipe fittings 6 are placed into the fixing device, the two groups of connecting ears 41 are tightly clamped by tightening the fastening bolts 42, and finally the locking structure 4 is actuated.

[0032] In use, the fastening bolts 42 are loosened to enable the fastening pipes 1 and the connecting pipes 2 to be in a loosened state, the two thin-walled pipe fittings 6 are placed, and the welding ends of the two thin-walled pipe fittings 6 are located at the half of the welding holes 3, respectively, and the welding seams 7 to be welded are formed between the two thin-walled pipe fittings 6. After confirmation, the fastening bolts 42 are tightened, and whether the thin-walled pipe fittings 6 are in the same straightness or the position needs to be adjusted is checked. After confirmation, the operator can preliminarily perform segment welding on the welding seams 7 to be welded through the welding holes 3. When the segment welding on one side is completed, the entire fixing device is rotated to perform segment welding on the other side. The four welding holes 3 enable the two thin-walled pipe fittings 6 to be more firmly and reliably welded, and position deviation is not easily generated. After the segment welding is completed, the fastening bolts 42 are loosened, and the segment welding process is completed. Then, the girth welding work can be performed.

[0033] The entire process is used in combination with a welding positioning tool to further avoid deformation of the two thin-walled pipe fittings 6 during welding, and to ensure the completion quality of the entire welding.

[0034] The above content is a further detailed description of the utility model in combination with a specific preferred embodiment, and the specific implementation of the utility model cannot be limited to these descriptions. For ordinary skilled persons in the technical field to which the utility model belongs, a number of simple deductions or substitutions can be made without departing from the concept of the utility model, and all of them should be regarded as belonging to the protection range of the utility model.

Claims

1. A set of fixing devices for thin-walled pipe welding, characterized in that: two fastening pipes (1) are provided with a connecting pipe (2) between them, the upper and lower ends of the connecting pipe (2) are fixedly connected with the fastening pipes (1); the fastening pipes (1) and the connecting pipe (2) are both provided with adjusting openings (5) that are in communication with each other; the connecting pipe (2) is provided with a plurality of welding holes (3); the fastening pipes (1) are provided with locking structures (4) for locking thin-walled pipe fittings (6), the locking structures (4) are located on both sides of the adjusting openings (5). The inner diameter of the connecting pipe (2) is the same as that of the fastening pipes (1), and the wall thickness of the connecting pipe (2) is smaller than that of the fastening pipes (1). The number of the welding holes (3) is four, which are distributed on the side wall of the connecting pipe (2) along the circumference. The shape of the welding holes (3) is a rounded rectangle. The locking structure (4) includes two sets of symmetrically arranged connecting ears (41) and fastening bolts (42), one connecting ear (41) is arranged at the head end and the tail end of each fastening pipe (1), and the connecting ears (41) are fixedly connected by the fastening bolts (42).

2. A set-up fixture for thin wall pipe welding as claimed in claim 1 wherein: ​ 3. A set-up fixture for thin wall pipe welding as defined in claim 1 wherein: ​ 4. A set-up fixture for thin wall pipe welding as defined in claim 3 wherein: ​ 5. A set-up fixture for thin wall pipe welding as defined in claim 1 wherein: ​

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