Pipeline laser welding device

Abstract

The utility model provides a pipeline laser welding device, which belongs to the technical field of pipeline welding, and comprises a workbench, a driver, a laser welder and a positioning mechanism, the positioning mechanism comprises a positioning block, a mounting block, a swing arm, an operating rod and a locking piece; the positioning block is fixedly mounted on the workbench; the positioning block is provided with a V-shaped groove, the mounting block is fixedly mounted on the workbench, and the swing arm is mounted on one side of the positioning block and rotationally connected with the mounting block; a mounting plate is arranged on the swing arm, and the operating rod is vertically arranged and is connected to the mounting plate in a sliding manner; the lower end of the operating rod is provided with an extrusion part acting on the pipeline from top to bottom, and the operating rod is provided with an elastic piece located between the extrusion part and the mounting plate; the locking piece is installed on one side of the swing arm and used for being fixedly connected to the swing arm and the installation block. According to the pipeline laser welding device provided by the utility model, the positioning operation steps of the two sections of pipelines are simple, the operation is quick, and the disassembly and assembly operation is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline welding, and more specifically, relates to a pipeline laser welding device. Background Art

[0002] During the use of pipelines, it is often necessary to connect multiple pipeline segments to form a pipeline that meets the length requirements, so as to achieve the purpose of reducing costs and saving resources. Currently, when connecting pipelines, laser welding is mostly used to efficiently and accurately complete a good sealed connection between adjacent pipeline segments. However, during the laser welding process, it is often necessary to position the docking joints of adjacent pipeline segments to ensure the accuracy of the welding operation. However, the existing positioning methods require locking and fixing both ends, which are cumbersome to operate, inconvenient to disassemble and assemble, and reduce the processing efficiency. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a pipeline laser welding device to solve the technical problems of cumbersome operation and inconvenient disassembly and assembly in the positioning method during the pipeline welding process in the existing technology.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: providing a pipeline laser welding device, which includes a workbench, a driver installed on the workbench, and a laser welder located on one side of the workbench. The device further includes a plurality of positioning mechanisms installed on the workbench, and the positioning mechanism includes:

[0005] A positioning block fixedly installed on the workbench; a V-shaped groove for supporting the pipeline is opened at the upper end of the positioning block;

[0006] An installation block fixedly installed on the workbench and located on one side of the positioning block;

[0007] A swing arm installed on one side of the positioning block, and the lower end is rotatably connected to the installation block; an installation plate extending towards the positioning block and located above the positioning block is provided at the upper end of the swing arm;

[0008] An operating rod arranged vertically and slidably connected to the installation plate; an extrusion part for acting on the pipeline from top to bottom is provided at the lower end of the operating rod, and an elastic part is provided on the operating rod between the extrusion part and the installation plate;

[0009] A locking part is installed on one side of the swing arm and is used for fixedly connecting the swing arm and the installation block.

[0010] In a possible implementation, two receiving grooves are provided on the positioning block, and the two receiving grooves are respectively installed on two side surfaces of the V-shaped groove; a first rotating roller is installed in the receiving groove, and the first rotating roller is rotatably connected to the positioning block; the outer side surface of the first rotating roller protrudes into the V-shaped groove, and the lower side of the pipeline is supported on the two first rotating rollers.

[0011] In a possible implementation, a mounting groove is provided at the lower end of the pressing portion, and a second rotating roller is installed in the mounting groove. The lower end of the second rotating roller protrudes outside the pressing portion, and the second rotating roller is rotatably connected to the pressing portion; the upper side of the pipeline is in contact with the second rotating roller.

[0012] In a possible implementation, a through hole is provided on the mounting plate, the operating rod passes through the through hole and is slidably connected to the through hole, and a limiting flange is provided at the upper end of the operating rod.

[0013] In a possible implementation, the mounting plate and the swing arm are integrally formed.

[0014] In a possible implementation, an upwardly extending holding handle is provided at the upper end of the swing arm.

[0015] In a possible implementation, a first connection hole is provided on the swing arm, and the locking member includes:

[0016] A vertical plate, fixedly installed on the workbench; a second connection hole is provided on the vertical plate;

[0017] A connecting rod, installed on the vertical plate and passing through the second connection hole; one end of the connecting rod is used to pass through the first connection hole and is fixedly connected to the swing arm.

[0018] In a possible implementation, both the first connection hole and the second connection hole are threaded holes, and an external threaded section for threaded connection with the first connection hole and the second connection hole is provided on the connecting rod; an operating handle for screwing is provided at one end of the connecting rod away from the swing arm.

[0019] In a possible implementation, a working surface for moving along the length direction is provided on the workbench, and the positioning mechanism is installed on the working surface; the driver includes a driving motor, a reducer and a coupling, and one end of the pipeline is connected to the coupling.

[0020] In a possible implementation, the number of the positioning mechanisms is multiple, and they are arranged at intervals along the length direction of the working surface; the multiple positioning mechanisms are linearly arranged.

[0021] The beneficial effects of the pipeline laser welding device provided by the present utility model are as follows: Compared with the prior art, when the pipeline laser welding device of the present utility model is in use, the positioning mechanism and the driving mechanism are installed on the workbench, and the laser welder is located on one side of the workbench; during operation, the pipeline is installed on the positioning mechanism, and two sections of pipelines are butted, and the connection part of the two sections of pipelines is located on the positioning block, and the pipeline is supported in the V-shaped groove. Then, the swing arm is controlled to rotate around the mounting block, so that the operating rod and the pressing part are located directly above the pipeline, and the pressing part is driven to press on the two sections of pipelines under the action of the elastic force of the spring. Finally, the swing arm is fixed to the mounting block by using a locking member; the driving mechanism is started to drive the pipeline to rotate, and at the same time, the laser welder is started to emit laser, which acts on the connection part of the two sections of pipelines to complete the welding and sealing operation. In this way, the positioning operation steps of the two sections of pipelines are simple, the operation is fast, and the disassembly and assembly operations are convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 It is the front view of the pipeline laser welding device provided by the embodiment of the present utility model;

[0024] Figure 2 It is the top view of the pipeline laser welding device provided by the embodiment of the present utility model;

[0025] Figure 3 It is the top view of the positioning mechanism provided by the embodiment of the present utility model;

[0026] Figure 4 It is the side view of the positioning mechanism provided by the embodiment of the present utility model.

[0027] Among them, the reference numerals in the drawings are as follows:

[0028] 1. Workbench; 11. Driver; 12. Laser welder; 2. Positioning mechanism; 3. Positioning block; 31. V-shaped groove; 32. Accommodating groove; 33. First rotating roller; 4. Mounting block; 5. Swing arm; 51. Mounting plate; 52. Through hole; 53. Limiting flange; 54. Holding handle; 55. First connection hole; 6. Operating rod; 61. Pressing part; 62. Elastic member; 63. Mounting groove; 64. Second rotating roller; 7. Locking member; 71. Vertical plate; 72. Second connection hole; 73. Connecting rod; 74. Operating handle; 8. Pipeline. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0031] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0032] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0033] Please refer to Figures 1 to 4 , and now a pipeline laser welding device provided by the present utility model will be described. A pipeline laser welding device includes a workbench 1, a driver 11 installed on the workbench 1, and a laser welder 12 located on one side of the workbench 1. It is characterized in that it further includes a plurality of positioning mechanisms 2 installed on the workbench 1. The positioning mechanism 2 includes a positioning block 3, a mounting block 4, a swing arm 5, an operating rod 6, and a locking member 7. The positioning block 3 is fixedly installed on the workbench 1. A V-shaped groove 31 for supporting the pipeline 8 is opened at the upper end of the positioning block 3. The mounting block 4 is fixedly installed on the workbench 1 and is located on one side of the positioning block 3. The swing arm 5 is installed on one side of the positioning block 3, and the lower end is rotatably connected to the mounting block 4. An installation plate 51 extending towards the positioning block 3 and located above the positioning block 3 is provided at the upper end of the swing arm 5. The operating rod 6 is arranged vertically and is slidably connected to the installation plate 51. An extrusion portion 61 for acting on the pipeline 8 from top to bottom is provided at the lower end of the operating rod 6. An elastic member 62 is provided on the operating rod 6 between the extrusion portion 61 and the installation plate 51. The locking member 7 is installed on one side of the swing arm 5 and is used for fixedly connecting the swing arm 5 and the mounting block 4.

[0034] Compared with the prior art, when the pipeline laser welding device provided by the utility model is in use, the positioning mechanism 2 and the driving mechanism are installed on the workbench 1, and the laser welder 12 is located on one side of the workbench 1; during work, the pipeline 8 is installed on the positioning mechanism 2, and two sections of the pipeline 8 are butted, and the connection part of the two sections of the pipeline 8 is located on the positioning block 3. The pipeline 8 is supported in the V-shaped groove 31. Then, the swing arm 5 is controlled to rotate around the mounting block 4, so that the operating rod 6 and the pressing part 61 are located directly above the pipeline 8, and under the action of the elastic force of the spring, the pressing part 61 is driven to press on the two sections of the pipeline 8. Finally, the swing arm 5 is fixed on the mounting block 4 by using the locking part 7; the driving mechanism is started to drive the pipeline 8 to rotate, and at the same time, the laser welder 12 is started to emit laser light to act on the connection part of the two sections of the pipeline 8 to complete the welding and sealing operation. In this way, the positioning operation steps for the two sections of the pipeline 8 are simple, the operation is fast, and the disassembly and assembly operations are convenient.

[0035] Before work, two sections of the pipeline 8 are inserted together and have a certain connection length. Since the two pipelines 8 are made of plastic material, the two sections of the pipeline 8 are tightly connected after being inserted together, so that they can rotate together. Specifically, the welding position is the end of the outer pipeline 8 for circumferential welding and sealing. The pressing part 61 acts on one side of the welding position and corresponds to the inserted section.

[0036] The outer side surface of the pipeline 8 has protruding ribs arranged along the axial direction, and the protruding ribs can also be effectively avoided under the action of the elastic member 62.

[0037] Please refer to Figure 3 and Figure 4 As a specific embodiment of the pipeline laser welding device provided by the utility model, two receiving grooves 32 are provided on the positioning block 3, and the two receiving grooves 32 are respectively installed on the two side surfaces of the V-shaped groove 31; a first rotating roller 33 is installed in the receiving groove 32, and the first rotating roller 33 is rotatably connected to the positioning block 3; the outer side surface of the first rotating roller 33 protrudes into the V-shaped groove 31, and the lower side of the pipeline 8 is supported on the two first rotating rollers 33; when the pipeline 8 is installed in the V-shaped groove 31 on the positioning block 3, the lower two side surfaces of the pipeline 8 respectively abut against the two first rotating rollers 33, so that the friction between the pipeline 8 and the positioning block 3 is greatly reduced. Specifically, receiving grooves 32 are opened on the two inner side walls of the V-shaped groove 31, and the two first rotating rollers 33 are respectively installed in the two receiving grooves 32, and both ends of the first rotating roller 33 are rotatably connected to the positioning block 3.

[0038] Please refer to Figure 3 and Figure 4, as a specific implementation of the pipeline laser welding device provided by the present utility model, the lower end mounting groove 63 of the extrusion part 61 and the second rotating roller 64 installed in the mounting groove 63, the lower end of the second rotating roller 64 protrudes outside the extrusion part 61, and the second rotating roller 64 is rotatably connected to the extrusion part 61; the upper side of the pipeline 8 is in contact with the second rotating roller 64; similarly, a mounting groove 63 is opened at the lower end of the extrusion part 61, and a rotatably connected second rotating roller 64 is installed in the mounting groove 63. Therefore, when the extrusion part 61 acts on the upper end of the pipeline 8, the second rotating roller 64 is in direct contact with the pipeline 8, and the static friction between the extrusion part 61 and the pipeline 8 is changed to rolling friction, reducing the friction between the two.

[0039] Please refer to Figure 3 and Figure 4 , as a specific implementation of the pipeline laser welding device provided by the present utility model, a through hole 52 is opened on the mounting plate 51, the operating rod 6 is inserted through the through hole 52 and is slidably connected to the through hole 52, and a limiting flange 53 is provided at the upper end of the operating rod 6; during installation, the operating rod 6 is slidably connected into the through hole 52, and the upper and lower ends of the operating rod 6 are respectively located above and below the mounting plate 51. The extrusion part 61 is installed at the lower end of the operating rod 6, and there is an installation spacing between the extrusion part 61 and the lower end face of the mounting plate 51, and the elastic member 62 is installed in the installation spacing. At the same time, a limiting flange 53 is provided at the upper end of the operating rod 6 to prevent the operating rod 6 from falling out of the through hole 52.

[0040] Please refer to Figure 3 and Figure 4 , as a specific implementation of the pipeline laser welding device provided by the present utility model, the mounting plate 51 and the swing arm 5 are integrally formed; improving the connection strength and reliability between the mounting plate 51 and the swing arm 5, and also making the connection of the operating rod 6 more accurate and not prone to skew.

[0041] Please refer to Figure 3 and Figure 4 , as a specific implementation of the pipeline laser welding device provided by the present utility model, the upper end of the swing arm 5 is provided with a holding handle 54 extending upward; when the staff controls the rotation of the swing arm 5, they can directly hold the holding handle 54, which is more convenient to operate. At the same time, the holding handle 54 is arranged on the side of the swing arm 5 away from the mounting block 4, which is more labor-saving and convenient.

[0042] Please refer to Figure 3 and Figure 4, as a specific implementation manner of the pipeline laser welding device provided by the present utility model, a first connection hole 55 is provided on the swing arm 5, and the locking member 7 includes a vertical plate 71 and a connecting rod 73; the vertical plate 71 is fixedly installed on the workbench 1; a second connection hole 72 is opened on the vertical plate 71; the connecting rod 73 is installed on the vertical plate 71 and passes through the second connection hole 72; one end of the connecting rod 73 is used to pass through the first connection hole 55 and is fixedly connected to the swing arm 5; the vertical plate 71 is fixed on one side of the swing arm 5, and the first connection hole 55 on the vertical plate 71 is coaxially aligned with the second connection hole 72 on the swing arm 5 that presses the pipeline 8, and then the connecting rod 73 is passed through the first connection hole 55 and the second connection hole 72 in sequence so that the connecting rod 73 fixedly connects the swing arm 5 and the vertical plate 71 together.

[0043] Please refer to Figure 3 and Figure 4 , as a specific implementation manner of the pipeline laser welding device provided by the present utility model, both the first connection hole 55 and the second connection hole 72 are screw holes, and the connecting rod 73 is provided with an external thread section that is threadedly connected to the first connection hole 55 and the second connection hole 72; an operation handle 74 for screwing is provided at one end of the connecting rod 73 away from the swing arm 5; that is, under normal conditions, the connecting rod 73 is threadedly connected in the first connection hole 55, and by continuously screwing the connecting rod 73, the connecting rod 73 is threadedly connected into the second connection hole 72, and the threaded connection method makes the fixed connection effect between the vertical plate 71 and the swing arm 5 more firm and reliable. The operation handle 74 is provided on the connecting rod 73, and the staff holds the operation handle 74 to conveniently screw the connecting rod 73.

[0044] Please refer to Figure 1 and Figure 2 , as a specific implementation manner of the pipeline laser welding device provided by the present utility model, a working surface for moving along the length direction is provided on the workbench 1, and the positioning mechanism 2 is installed on the working surface; the driver 11 includes a driving motor, a reducer and a coupling, and one end of the pipeline 8 is connected to the coupling; the working surface is arranged on the workbench 1 in advance, and a conveying mechanism is provided so that the working surface can reciprocate on the workbench 1, and a belt conveying method or a chain drive, etc. can be selected. The driving motor, the reducer and the coupling in the driver 11 are all installed on the workbench 1. After installing multiple sections of the pipeline 8 on the positioning mechanism 2, one end of the pipeline 8 is connected to the coupling. When working, the driving motor is started and torque is applied to the pipeline 8 through the reducer and the coupling to rotate.

[0045] Please refer to Figure 1 and Figure 2, as a specific implementation of the pipeline laser welding device provided by the present utility model, the number of positioning mechanisms 2 is multiple, and they are arranged at intervals along the length direction of the working surface; the multiple positioning mechanisms 2 are linearly arranged; setting multiple positioning mechanisms 2 can arrange multiple sections of pipelines 8 on the workbench 1 for connection at the same time, and then with the help of the automatic function of the working surface, the positions of two different pipelines 8 can be quickly changed to correspond to the laser welder 12, so as to complete the welding and sealing operations at different positions.

[0046] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A pipeline laser welding device, comprising a workbench, a driver installed on the workbench, and a laser welder located on one side of the workbench, characterized in that, It further includes a plurality of positioning mechanisms installed on the workbench, and the positioning mechanism includes: A positioning block, fixedly installed on the workbench; a V-shaped groove for supporting the pipeline is provided at the upper end of the positioning block; A mounting block, fixedly installed on the workbench and located on one side of the positioning block; A swing arm, installed on one side of the positioning block, and the lower end is rotatably connected to the mounting block; an installation plate extending towards the positioning block and located above the positioning block is provided at the upper end of the swing arm; An operating rod, arranged vertically and slidably connected to the installation plate; an extrusion part for acting on the pipeline from top to bottom is provided at the lower end of the operating rod, and an elastic part is provided on the operating rod between the extrusion part and the installation plate; A locking part, installed on one side of the swing arm and used for fixedly connecting the swing arm and the mounting block.

2. The pipeline laser welding device according to claim 1, characterized in that Two accommodating grooves are provided on the positioning block, and the two accommodating grooves are respectively installed on the two side surfaces of the V-shaped groove; a first rotating roller is installed in the accommodating groove, and the first rotating roller is rotatably connected to the positioning block; the outer side surface of the first rotating roller protrudes into the V-shaped groove, and the lower side of the pipeline is supported on the two first rotating rollers.

3. The pipeline laser welding device according to claim 2, wherein An installation groove is provided at the lower end of the extrusion part, and a second rotating roller installed in the installation groove, the lower end of the second rotating roller protrudes outside the extrusion part, and the second rotating roller is rotatably connected to the extrusion part; the upper side of the pipeline is in contact with the second rotating roller.

4. The pipeline laser welding device according to claim 1, characterized in that, A through hole is provided on the installation plate, the operating rod passes through the through hole and is slidably connected to the through hole, and a limiting flange is provided at the upper end of the operating rod.

5. The pipeline laser welding device according to claim 1, characterized in that, The installation plate and the swing arm are integrally formed.

6. The pipeline laser welding device according to claim 1, characterized in that, A holding handle extending upwards is provided at the upper end of the swing arm.

7. The pipeline laser welding device according to claim 1, characterized in that, A first connection hole is provided on the swing arm, and the locking part includes: A vertical plate, fixedly installed on the workbench; a second connection hole is provided on the vertical plate; A connecting rod, installed on the vertical plate and passing through the second connection hole; one end of the connecting rod is used to pass through the first connection hole and is fixedly connected to the swing arm.

8. The pipeline laser welding device according to claim 7, characterized in that, Both the first connection hole and the second connection hole are threaded holes, and an external threaded section for threadedly connecting with the first connection hole and the second connection hole is provided on the connecting rod; an operating handle for screwing is provided at the end of the connecting rod away from the swing arm.

9. The pipeline laser welding device according to claim 1, characterized in that, A working surface for moving along the length direction is provided on the workbench, and the positioning mechanism is installed on the working surface; the driver includes a driving motor, a reducer and a coupling, and one end of the pipeline is connected to the coupling.

10. The pipeline laser welding device according to claim 9, characterized in that, The number of the positioning mechanisms is multiple, and they are arranged at intervals along the length direction of the working surface; the multiple positioning mechanisms are arranged linearly.

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