Opening aligning device for pipeline welding

Abstract

The utility model provides an aligning device for pipeline welding, which comprises two clamping mechanisms and a connecting mechanism, the two clamping mechanisms are connected through two connecting plates, and the two connecting plates are in running fit. During use, the two clamping mechanisms can be clamped on two pipelines needing to be welded into a whole, and the two pipelines can be axially aligned or perpendicular to each other by rotating the connecting plate. The two clamping mechanisms are arranged, so that the pipeline clamping position can be far away from the position to be welded. The clamping mechanism can firmly clamp the pipeline, the welding precision is ensured, the adjusting screw rod is rotated to enable the second clamping block and the first clamping block to be close to or far away from each other, the pipeline is clamped or released, the alignment work of a weldment can be rapidly and accurately completed, the welding preparation time is greatly shortened, operation is easy and convenient, and the welding efficiency is improved. And the welding operation is more efficient, and the device can be suitable for welding pipelines of various shapes, sizes and materials and is wide in application range.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pipeline welding technical field, concretely relates to a pipeline welding mouth -to -mouth device. BACKGROUND

[0002] Pipeline mouth -to -mouth refers to the axial alignment and abutment of two pipelines to be welded, and the accuracy of pipeline mouth -to -mouth is one of the important factors affecting the welding quality. The traditional welding mouth -to -mouth method mainly relies on manual operation, and due to the limited strength of the human body and poor operation stability, it is difficult to accurately control the position and angle of the pipeline, which can easily lead to mouth -to -mouth deviation, affect the welding quality, and the sparks generated during welding can easily injure the personnel, and the safety is poor.

[0003] In order to improve the welding quality, welding efficiency and welding safety, the existing technology (such as the patent file with the announcement number CN212122235U) exists pipeline mouth -to -mouth fixture, it includes support, pusher, first clamping part and second clamping part, first clamping part is arranged in support, pusher is screwed with support, one end of pusher is connected with second clamping part, when pusher rotates, second clamping part can be pushed to be close to or away from first clamping part, and two pipes to be welded are arranged between first clamping part and second clamping part. The deficiency of the above-mentioned mouth -to -mouth fixture is that: when the pipe is welded, it needs to be welded in many places along the circular weld (if only one place is welded, when the fixture is removed, two pipes are easy to deviate under the action of welding stress), so that two pipes are connected into one, and then the fixture is removed, and full welding is carried out along the weld. When the fixture in the prior art is clamped, the weld is between the first clamping part and the second clamping part, the first clamping part and the second clamping part cover most of the area of the weld, the welding gun lacks enough welding position, and the support is easy to interfere with the welding gun when welding, which brings inconvenience to the welding personnel. UTILITY MODEL CONTENTS

[0004] The utility model provides a pipeline welding mouth -to -mouth device, and aims at solving the problem that the support shields the weld when clamping the pipeline in the prior art.

[0005] In order to achieve the above-mentioned purpose, the technical scheme adopted by the utility model is: a pipeline welding mouth -to -mouth device is provided, which comprises two clamping mechanisms and a connecting mechanism, the connecting mechanism is connected between the two clamping mechanisms, the connecting mechanism comprises two connecting plates, one end of each connecting plate is connected with the corresponding clamping mechanism, and the other end of each connecting plate is hinged to each other.

[0006] The clamping mechanism comprises a support, a first clamping block, a second clamping block and an adjusting screw, the first clamping block is arranged at one end of the support, the adjusting screw is threadedly connected to the other end of the support, the second clamping block is connected to one end of the adjusting screw adjacent to the first clamping block, and a clamping channel for the pipeline to pass through is formed between the first clamping block and the second clamping block.

[0007] The two clamping mechanisms have a first working posture of axially aligning the two clamping channels and a second working posture of perpendicularly arranging the two clamping channels.

[0008] In a possible implementation, the length direction of the connecting plate and the clamping channel direction of the corresponding clamping mechanism intersect at an angle of 45 degrees, when the clamping mechanism is in the first working posture, the two connecting plates are perpendicular to each other, and when the clamping mechanism is in the second working posture, the two connecting plates are collinear with each other.

[0009] In a possible implementation, the end of the adjusting screw is rotationally connected to the second clamping block.

[0010] In a possible implementation, the support is provided with a guide groove along the length direction of the support, and the second clamping block is provided with a guide portion slidably connected to the guide groove.

[0011] In a possible implementation, the first clamping block and the second clamping block are respectively provided with V-shaped clamping grooves.

[0012] In a possible implementation, the inner wall of the clamping groove is provided with a rubber gasket.

[0013] In a possible implementation, the end of the adjusting screw away from the second clamping block is connected with a hand wheel.

[0014] In a possible implementation, the ends of the two connecting plates hingedly connected to each other are respectively provided with through connecting holes, and the connecting mechanism further comprises a bolt penetrating through the connecting holes and a nut threadedly connected to the bolt, and a clamping space for clamping the two connecting plates is formed between the nut and the head of the bolt.

[0015] In a possible implementation, the first clamping block and the second clamping block are respectively angle steels, and the first clamping block and the second clamping block are respectively arranged along the direction of the clamping channel.

[0016] In a possible implementation, the end of one of the connecting plates is provided with a receiving groove for receiving the end of the other connecting plate.

[0017] Compared with the prior art, the pipe welding butt joint device has the following advantages:

[0018] The pipe welding butt joint device provided by the utility model comprises clamping mechanisms and connecting mechanisms, two clamping mechanisms are connected through two connecting plates, and the two connecting plates are rotationally matched.

[0019] From the welding effect, the clamping mechanism in the utility model does not cause shielding to the welding position after installation, so that the welding gun can perform spot welding at multiple positions in the circumferential direction of the pipe, and the pipe welding butt joint device is not easy to deviate after being removed, thereby ensuring the welding precision.

[0020] From the operation convenience, the pipe is clamped and fixed by the clamping mechanism, the clamping mechanism comprises a support, a first clamping block, a second clamping block and an adjusting screw, the second clamping block and the first clamping block are made to approach or move away from each other by rotating the adjusting screw, the pipe is clamped or released, the butt joint work of the welding piece can be quickly and accurately completed, the welding preparation time is greatly shortened, the operation is simple and convenient, and the welding operation is more efficient.

[0021] From the operation safety, the two pipes are clamped by the clamping mechanism, the clamping is firm and reliable, the butt joint does not need manual assistance after being clamped and fixed, the operation safety is improved, and the risk of accidents is reduced.

[0022] From the product applicability, the pipe welding butt joint device provided by the utility model can be applied to pipe welding of pipes of various shapes, sizes and materials, can provide effective butt joint operation for circular pipes, square members, special-shaped structures and the like, can realize coaxial welding and right-angle welding of the welding piece according to needs, and has wide application range. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a use schematic diagram of the pipe butt joint clamp in the prior art;

[0024] Figure 2 It is a structure schematic diagram of the pipe welding butt joint device provided by the utility model embodiment;

[0025] Figure 3 It is a use schematic diagram of the pipe welding butt joint device provided by the utility model embodiment Figure 1 ;

[0026] Figure 4 It is a use schematic diagram of the pipe welding butt joint device provided by the utility model embodiment Figure 2 ;

[0027] BRIEF DESCRIPTION OF DRAWINGS

[0028] 1. A pipe welding alignment device; 10, clamping mechanism; 11, support; 111, guide groove; 12, first clamping block; 121, clamping groove; 13, second clamping block; 131, guide portion; 14, adjusting screw; 141, hand wheel; 20, connecting mechanism; 21, connecting plate; 22, connecting shaft; DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects of the present application more clearly understood, the present application will be further described in detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are only intended to explain the present application and not to limit the present application.

[0030] It should be noted that when an element is referred to as being "fixed to", "fixed", "secured to" another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected to", "connected" another element, it can be directly connected to the other element or there can be an intervening element. When an element is referred to as being "disposed on", "disposed to" another element, it can be directly on the other element or there can be an intervening element. "Plural" means two or more. "At least one" means one or more. "Several" means one or more.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs.

[0032] Please refer to Figures 1 to 4 , the pipe welding alignment device 1 provided by the embodiment of the present application will be described below.

[0033] Please refer to Figure 1 , it is a schematic diagram of the use of the pipe alignment clamp in the prior art. As can be seen from the drawing, when used for clamping the pipe, the clamp will cover the weld, causing the welding gun to be unable to spot weld the covered position. At the same time, due to the shape and structure of the clamp itself, the welding gun is easy to interfere with the clamp, and the spot welding operation is relatively inconvenient. As shown in Figure 1 , the alignment clamp in the prior art is not easy to spot weld at multiple positions along the circumferential direction of the pipe body after clamping is completed. When the clamp is removed, the release of welding stress is easy to cause the deviation of the pipe coaxiality, thereby affecting the welding precision.

[0034] Please refer to Figure 2 , Figure 3 and Figure 4The utility model embodiment provides a kind of mouth-to-mouth device 1 for pipeline welding, including two clamping mechanisms 10, and connecting mechanism 20, connecting mechanism 20 is connected between two clamping mechanisms 10, and connecting mechanism 20 includes two connecting plates 21, one end of two connecting plates 21 is connected with corresponding clamping mechanism 10 respectively, and the other end of two connecting plates 21 is hinged to each other;Clamping mechanism 10 includes support 11, first clamping block 12, second clamping block 13 and adjusting screw 14, first clamping block 12 is located at one end of support 11, adjusting screw 14 is screwed on the other end of support 11, and second clamping block 13 is connected to the end of adjusting screw 14 adjacent to first clamping block 12, and the clamping passage for pipeline passing through is formed between first clamping block 12 and second clamping block 13;Two clamping mechanisms 10 have the first working attitude of making two clamping passages axial alignment, and the second working attitude of making two clamping passages perpendicular to each other.

[0035] Compared with the prior art, the mouth-to-mouth device 1 for pipeline welding provided by the utility model embodiment has the following beneficial effects:

[0036] The mouth-to-mouth device 1 for pipeline welding provided by the utility model embodiment includes clamping mechanism 10 and connecting mechanism 20, two clamping mechanisms 10 are connected by two connecting plates 21, and two connecting plates 21 are rotationally matched. When in use, two clamping mechanisms 10 can be clamped on two pipelines that need to be welded together respectively, and two pipelines can be axially aligned or perpendicular to each other by rotating connecting plate 21. The utility model embodiment is provided with two clamping mechanisms 10, so that the clamping position of pipeline can be away from the welding position (i.e. weld), and the angle attitude between two clamping mechanisms 10 can be adjusted by connecting mechanism 20.

[0037] From the welding effect, the clamping mechanism 10 in the utility model will not cause shielding to the welding position after installation, so that the welding gun can perform spot welding at multiple positions in the circumferential direction of pipeline, and the mouth-to-mouth device is not easy to produce deviation after being removed, thereby ensuring the welding precision.

[0038] From the operation convenience, the utility model adopts clamping mechanism 10 to clamp and fix pipeline, clamping mechanism 10 includes support 11, first clamping block 12, second clamping block 13 and adjusting screw 14, second clamping block 13 and first clamping block 12 are made close to or away from each other by rotating adjusting screw 14, the mouth-to-mouth work of welding piece can be quickly and accurately completed, the welding preparation time is greatly shortened, the operation is simple and convenient, and the welding operation is more efficient.

[0039] From the operation safety, the utility model adopts clamping mechanism 10 to clamp two pipelines, which is firm and reliable, does not need manual auxiliary mouth-to-mouth, improves the safety of operation, and reduces the risk of accident.

[0040] From the product applicability, the pipe welding mouth-to-mouth device 1 can be applied to the pipe welding of various shapes, sizes and materials, and can provide effective mouth-to-mouth operation for circular pipes, square components, special-shaped structures and the like, and can realize coaxial welding and right-angle welding of the welding piece as required, and has wide application range.

[0041] The clamping mechanism 10 in the embodiment of the utility model includes support 11, first clamping block 12, second clamping block 13 and adjusting screw 14, the support 11 can be half square, semicircle and the like, in order to facilitate holding, the support 11 can be provided with holding handle, the support 11 is used to provide stable support for the first clamping block 12, adjusting screw 14 and the like parts installed on it, and the specific shape mechanism is not limited, and the use demand can be met.

[0042] The first clamping block 12 and the second clamping block 13 are oppositely arranged, wherein the first clamping block 12 can be fixed on the support 11 by screw connection, welding and the like, the second clamping block 13 is movably arranged, and rotating the adjusting screw 14 can drive the second clamping block 13 to approach or move away from the first clamping block 12. The connecting plate 21 can be rotatably connected through the connecting shaft 22, and according to the requirement, the two clamping mechanisms 10 can be in the first working attitude as shown in Figure 3 , and the second working attitude as shown in Figure 4 .

[0043] Please refer to Figure 2 , Figure 3 and Figure 4 , in some possible embodiments, the length direction of the connecting plate 21 and the clamping channel direction of the corresponding clamping mechanism 10 intersect at an angle of 45°, when the clamping mechanism 10 is in the first working attitude, the two connecting plates 21 are perpendicular to each other, when the clamping mechanism 10 is in the second working attitude, the two connecting plates 21 are collinear.

[0044] Please refer to Figure 2 , Figure 3 and Figure 4 , in some possible embodiments, the end of the adjusting screw 14 is rotatably connected with the second clamping block 13, so that the second clamping block 13 does not rotate with the adjusting screw 14. In order to reduce the rotating resistance, the side of the second clamping block 13 adjacent to the adjusting screw 14 can be provided with a bearing, and the end of the adjusting screw 14 can be fixedly connected with the inner ring of the bearing.

[0045] Please refer to Figure 2 , Figure 3 and Figure 4In some possible embodiments, the support 11 is provided with a guide groove 111 along the length direction of the support 11, and the second clamping block 13 is provided with a guide portion 131 which is in sliding fit with the guide groove 111. The guide portion 131 can be in a block shape, a strip shape or a rod shape. The guide portion 131 is in sliding fit with the guide groove 111, and can guide the movement of the second clamping block 13. The second clamping block 13 and the first clamping block 12 are aligned with each other.

[0046] Please refer to Figure 2 , Figure 3 and Figure 4 In some possible embodiments, the first clamping block 12 and the second clamping block 13 are respectively provided with a V-shaped clamping groove 121. Of course, the clamping groove 121 can also be in an arc shape or other shapes, and can clamp the welding member.

[0047] Please refer to Figure 2 , Figure 3 and Figure 4 In some possible embodiments, the inner wall of the clamping groove 121 is provided with a rubber pad. The rubber pad plays a protection role, and can avoid that the clamping force is too large to cause damage to the outer wall of the pipeline.

[0048] Please refer to Figure 2 , Figure 3 and Figure 4 In some possible embodiments, the end of the adjusting screw 14 which is away from the second clamping block 13 is connected with a hand wheel 141. The hand wheel 141 is convenient for an operator to hold and rotate the adjusting screw 14.

[0049] In some possible embodiments, the ends of the two connecting plates 21 which are hingedly connected with each other are respectively provided with a through connecting hole. The connecting mechanism 20 further includes a bolt which is arranged in the connecting hole, and a nut which is in threaded fit with the bolt. The nut and the head of the bolt form a clamping space which clamps the two connecting plates 21.

[0050] In the embodiment, the connecting plates 21 are connected and fixed in the form of the bolt and the nut. When the rotation angle adjustment of the two connecting plates 21 is completed, the bolt and the nut can be tightened to lock and fix the two connecting plates 21, so that the movement or rotation of the two connecting plates 21 is prevented. When the angle of the two connecting plates 21 needs to be adjusted, the bolt can be loosened.

[0051] Please refer to Figure 2 , Figure 3 and Figure 4 In some possible embodiments, the first clamping block 12 and the second clamping block 13 are respectively high-strength angle steels. The first clamping block 12 and the second clamping block 13 are respectively arranged along the direction of the clamping channel, so that the clamping range is wider, and the clamping is more firm and stable.

[0052] Please refer to Figure 2 , Figure 3 and Figure 4 Figure 2 Figure 3 Figure 4In some possible embodiments, an end of one connecting plate 21 is provided with a receiving groove for accommodating an end of the other connecting plate 21, facilitating the installation of the two connecting plates 21.

[0053] It can be understood that the parts in the above embodiments can be freely combined or deleted to form different combined embodiments, and the specific content of each combined embodiment will not be described here again, and it can be considered that the utility model specification has recorded each combined embodiment after the description, and different combined embodiments can be supported.

[0054] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A pipe welding aligning device characterized by comprising: The connecting mechanism comprises two connecting plates, one end of each of the two connecting plates is connected with a corresponding clamping mechanism, and the other end of each of the two connecting plates is hingedly connected with each other. The clamping mechanism comprises a support, a first clamping block, a second clamping block, and an adjusting screw, the first clamping block is arranged at one end of the support, the adjusting screw is threadedly connected at the other end of the support, the second clamping block is connected to the end of the adjusting screw adjacent to the first clamping block, and a clamping channel for the pipeline to pass through is formed between the first clamping block and the second clamping block. The two clamping mechanisms have a first working posture in which the two clamping channels are axially aligned, and a second working posture in which the two clamping channels are perpendicular to each other.

2. The pipe welding alignment apparatus of claim 1, wherein, The length direction of the connecting plate and the clamping channel direction of the corresponding clamping mechanism intersect at an angle of 45°, when the clamping mechanism is in the first working posture, the two connecting plates are perpendicular to each other, and when the clamping mechanism is in the second working posture, the two connecting plates are collinear with each other.

3. The pipe welding alignment apparatus of claim 1, wherein, The end of the adjusting screw is rotationally connected with the second clamping block.

4. The pipe welding alignment apparatus of claim 1, wherein, The support is provided with a guide groove along the length direction of the support, and the second clamping block is provided with a guide portion that is slidingly connected with the guide groove.

5. The pipe welding alignment apparatus of claim 1, wherein, The first clamping block and the second clamping block are respectively provided with V-shaped clamping grooves.

6. The pipe welding alignment apparatus of claim 5, wherein, The inner wall of the clamping groove is provided with a rubber gasket.

7. The pipe welding alignment apparatus of claim 1, wherein, The end of the adjusting screw away from the second clamping block is connected with a hand wheel.

8. The pipe welding alignment apparatus of claim 1, wherein, One end of each of the two connecting plates is provided with a through connecting hole, the connecting mechanism further comprises a bolt penetrating through the connecting holes, and a nut threadedly connected with the bolt, and the nut and the bolt form a clamping space for clamping the two connecting plates.

9. The pipe welding alignment apparatus of claim 1, wherein, The first clamping block and the second clamping block are respectively angle steels, and the first clamping block and the second clamping block respectively extend along the direction of the clamping channel.

10. The pipe welding alignment apparatus of claim 1, wherein, One end of one of the connecting plates is provided with a receiving groove for receiving the end of the other connecting plate.

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