A multi-stage welding device for pipe machining

Abstract

The application discloses a kind of multi-section welding device for pipe processing, it is related to pipe processing technical field, including electric guide rail and the adjusting groove being arranged on the upper surface of electric guide rail, support seat and support rod are slidably arranged in adjusting groove, welding mechanism is equipped on support rod, V-shaped groove is equipped on the upper surface of support seat, pipe material is placed in V-shaped groove, centering mechanism is equipped in pipe material, centering mechanism includes first centering component and second centering component.The multi-section welding device for pipe processing provided in the application is respectively centered to the multiple pipe materials in pipe material by setting first centering component and second centering component, so that the center of pipe material is aligned, and passive type pipe material is pulled synchronously when butt joint to make the interface of multiple pipe materials mutually butt joint tightly, so that the centering welding of self-adaptability to variable diameter pipe material and irregular pipe material can be carried out, and welding interface between pipe material is continuously pressed tightly when centering, and gap does not appear.

Description

Technical Field

[0001] This invention relates to the field of pipe processing technology, and more specifically to a multi-segment welding device for pipe processing. Background Technology

[0002] Multi-segment pipe welding is a method of welding pipes in multiple segments, which is suitable for different types of pipes and welding requirements.

[0003] The common multi-segment pipe welding involves welding multiple similar pipes of different lengths together to form a longer pipe. However, there are also less common welding requirements for multi-segment pipe welding, namely the welding of other special pipes, such as reducing pipes and irregular pipes.

[0004] Reducing diameter pipes refer to pipes with different diameters connected in series. Irregular pipes are most commonly a combination of square and round pipes. In both cases, the inner and outer diameters, and even the shapes, of each pipe segment are different, which poses a challenge to welding. How to weld between large and small inner diameters, between square and round openings, and between large and small outer diameters are all problems that urgently need to be solved. Summary of the Invention

[0005] The purpose of this invention is to provide a multi-segment welding device for pipe processing to overcome the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A multi-segment welding device for pipe processing includes an electric guide rail and an adjustment groove disposed on the upper surface of the electric guide rail. A support seat and a support rod are slidably disposed in the adjustment groove. A welding mechanism is provided on the support rod. A V-shaped groove is provided on the upper surface of the support seat. Pipe material is placed in the V-shaped groove. A centering mechanism is provided in the pipe material. The centering mechanism includes a first centering component and a second centering component.

[0008] Before welding the pipe, the centering mechanism is placed inside the pipe, and the first centering component and the second centering component are used to center the multiple pipe sections in the pipe respectively, so that the center of the pipe is aligned, and the pipe is passively pulled during docking to make the interfaces of the multiple pipe sections fit together tightly.

[0009] As a further preferred embodiment of the present application, the welding mechanism comprises a fixed strip fixedly connected to one side surface of the support rod, and one end of the fixed strip is provided with a driving motor, and each of the two ends of the fixed strip is rotatably connected with a belt pulley, and the output end of the driving motor is connected with one of the belt pulleys through the fixed strip, and a transmission belt is rotatably connected between the two belt pulleys, and each of the two belt pulleys is connected with a gear at one end.

[0010] As a further preferred embodiment of the present application, the welding mechanism further comprises a connecting strip fixedly connected to the upper end of the support rod, and one end of the connecting strip is fixedly connected with a rotating seat, and one end of the rotating seat is provided with a rotating groove, and a gear ring is rotatably connected in the rotating groove, and the other end of the rotating seat is fixedly connected with a connecting rod, and the connecting rod is provided with a laser welder at one end, and each of the two gears is engaged with the gear ring.

[0011] As a further preferred embodiment of the present application, the centering mechanism further comprises a first centering rod, and one end of the first centering rod is provided with a first rotating wheel, and the surface of the first centering rod is provided with a first threaded groove.

[0012] As a further preferred embodiment of the present application, the centering mechanism further comprises a second centering rod slidingly sleeved on the surface of the first centering rod, and the outer wall of the first centering rod is rotatably connected with the inner wall of the second centering rod, and one end of the second centering rod is provided with a second rotating wheel, and the surface of the second centering rod is provided with a second threaded groove.

[0013] As a further preferred embodiment of the present application, the first centering assembly comprises a second centering strip, and one side surface of the second centering strip is provided with a second friction surface, and the other side of the second centering strip is provided with a second connecting groove, and a second connecting strip is rotatably connected in the second connecting groove, and a first adjusting ring is rotatably connected to the surface of the first threaded groove, and the surface of the first adjusting ring is connected with a third connecting seat, and one end of the second connecting strip is hingedly connected with the third connecting seat.

[0014] As a further preferred embodiment of the present application, the second centering assembly comprises a first centering strip, and one side surface of the first centering strip is provided with a first friction surface, and the other side of the first centering strip is provided with a first connecting groove, and a first connecting strip and a third connecting strip are rotatably connected in the first connecting groove, and the first connecting strip and the third connecting strip are hingedly connected at the center, and a third adjusting ring is rotatably connected to the surface of one end of the second centering rod, and the surface of the third adjusting ring is connected with a second connecting seat, and one end of the third connecting strip is hingedly connected with the second connecting seat, and a second adjusting ring is rotatably connected to the surface of the second threaded groove, and the surface of the second adjusting ring is connected with a first connecting seat, and one end of the first connecting strip is hingedly connected with the first connecting seat.

[0015] As a further preferred scheme of the embodiment of the present application, a tensioning plate is hingedly connected between the second connecting seat and the third connecting seat, one end of the tensioning plate is fixedly connected with a driving rod, the side surface of the driving rod abuts against one end of the third adjusting ring, and one end of the driving rod is in surface rotary connection with the second centering rod.

[0016] In the above technical scheme, the multi-section welding device for pipe processing provided by the present application has the following beneficial effects:

[0017] The centering mechanism is arranged in the pipe material, the first centering assembly and the second centering assembly are used to respectively center the multi-section pipe material in the pipe material, so that the pipe material center is aligned, and the pipe material is passively pulled during butt joint to make the interfaces of the multi-section pipe material tightly butt joint each other, so that the pipe material can be adaptively centered and welded for variable-diameter pipe material and irregular pipe material during sectional welding, and the welding interfaces between the pipe materials are continuously tightly abutted during centering, and no gap is generated.

[0018] It should be understood that the foregoing general description and the following detailed description are only exemplary and illustrative, but not for limiting the present disclosure.

[0019] The present application provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art based on these drawings.

[0021] Figure 1 The overall structural schematic diagram provided by the embodiment of the present application is shown in the figure;

[0022] Figure 2 The structural schematic diagram of the welding mechanism provided by the embodiment of the present application is shown in the figure;

[0023] Figure 3 The structural schematic diagram of the welding mechanism provided by the embodiment of the present application is shown in the figure;

[0024] Figure 4 The structural schematic diagram of the centering mechanism provided by the embodiment of the present application is shown in the figure;

[0025] Figure 5 The structural schematic diagram of the centering mechanism provided by the embodiment of the present application is shown in the figure;

[0026] Figure 6An exploded view of the centering mechanism provided for the embodiment of the present application;

[0027] Figure 7 A structure schematic view of the adapter head provided for the embodiment of the present application Figure 6 An enlarged structure schematic view at A in the middle;

[0028] Figure 8 A structure schematic view of the adapter head provided for the embodiment of the present application

[0029] Legend of reference signs:

[0030] 1, electric guide rail; 101, adjusting groove; 102, supporting seat; 103, adapter head; 104, adapter groove; 105, pipe material; 2, supporting rod; 201, connecting strip; 202, rotating seat; 203, gear ring; 204, gear; 205, belt pulley; 206, transmission belt; 207, fixed strip; 208, driving motor; 209, connecting rod; 210, laser welder; 3, first centering rod; 301, first rotating wheel; 302, first threaded groove; 303, first adjusting ring; 4, second centering rod; 401, second rotating wheel; 402, second threaded groove; 403, second adjusting ring; 404, tensioning plate; 405, driving rod; 406, third adjusting ring; 5, first connecting seat; 501, second connecting seat; 502, first connecting strip; 503, first centering strip; 504, first connecting groove; 505, first friction surface; 506, third connecting strip; 6, third connecting seat; 601, second connecting strip; 602, second centering strip; 603, second connecting groove; 604, second friction surface. DETAILED DESCRIPTION

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, of the embodiments of the present disclosure. Based on the described embodiments of the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong within the scope of the present disclosure.

[0032] Please refer to Figure 1 - Figure 8 A multi-section welding device for pipe processing, comprising an electric guide rail 1 and an adjusting groove 101 arranged on the upper surface of the electric guide rail 1, a supporting seat 102 and a supporting rod 2 are arranged in the adjusting groove 101 in a sliding manner, a welding mechanism is arranged on the supporting rod 2, a V-shaped groove is arranged on the upper surface of the supporting seat 102, a pipe material 105 is placed in the V-shaped groove, a centering mechanism is arranged in the pipe material 105, the centering mechanism comprises a first centering assembly and a second centering assembly;

[0033] Before the pipe 105 is welded, the centering mechanism is put into the pipe 105, and the first centering assembly and the second centering assembly are used to center the multiple pipe materials in the pipe 105 respectively, so that the pipe 105 is centered, and the pipe 105 is passively pulled when being butt-jointed, so that the interfaces of the multiple pipe materials are tightly butt-jointed.

[0034] The present application puts the centering mechanism into the pipe 105, and uses the first centering assembly and the second centering assembly to center the multiple pipe materials in the pipe 105 respectively, so that the pipe 105 is centered, and the pipe 105 is passively pulled when being butt-jointed, so that the interfaces of the multiple pipe materials are tightly butt-jointed, so that the pipe materials can be adaptively centered and welded when being segmented welded, and the welding interfaces between the pipe materials are continuously tightly closed during centering, and no gap is generated.

[0035] Further, the length of the centering mechanism is matched with the length of the pipe 105.

[0036] Further, the pipe 105 has three segments in the embodiment, the front segment and the middle segment are combined to form a variable-diameter pipe material, and the middle segment and the rear segment are combined to form an irregular pipe material.

[0037] Further, the welding mechanism includes a fixed strip 207 fixedly connected to one side surface of the support rod 2, one end of the fixed strip 207 is provided with a driving motor 208, and each of the two ends of the fixed strip 207 is rotatably connected with a belt pulley 205, the output end of the driving motor 208 penetrates through the fixed strip 207 and is connected with one of the belt pulleys 205, a transmission belt 206 is rotatably connected between the two belt pulleys 205, and each of one end of the two belt pulleys 205 is connected with a gear 204.

[0038] Further, the welding mechanism further includes a connecting strip 201 fixedly connected to the upper end of the support rod 2, one end of the connecting strip 201 is fixedly connected with a rotating seat 202, one end of the rotating seat 202 is provided with a rotating groove, a gear ring 203 is rotatably connected in the rotating groove, the other end of the rotating seat 202 is fixedly connected with a connecting rod 209, one end of the connecting rod 209 is provided with a laser welder 210, and the two gears 204 are engaged with the gear ring 203.

[0039] Further, the upper ends of the rotating seat 202 and the gear ring 203 are provided with notches, so that the pipe 105 is convenient to place and take out.

[0040] Further, the two gears 204 are arranged to drive the gear ring 203 to rotate one circle.

[0041] Specifically, the driving motor 208 drives a gear 204 to rotate, and under the synchronous action of the transmission belt 206 and the belt pulley 205, the two gears 204 rotate synchronously, and further drive the gear ring 203 to rotate on the rotating seat 202, so as to drive the laser welder 210 to rotate around the welding joint for one round for welding.

[0042] In further provided embodiments of the present application, the centering mechanism further comprises a first centering rod 3, and the first centering rod 3 is provided with a first rotating wheel 301 at one end, and the surface of the first centering rod 3 is provided with a first threaded groove 302.

[0043] Further, the first centering rod 3, the second centering rod 4, the first rotating wheel 301 and the first threaded groove 302 are all two, and the two first centering rods 3 are rotationally connected at the end positions, and the first centering rod 3, the second centering rod 4, the first rotating wheel 301 and the first threaded groove 302 are mirror-symmetrically arranged with the end connection positions as points.

[0044] In further provided embodiments of the present application, the centering mechanism further comprises a second centering rod 4 which is sleeved on the surface of the first centering rod 3, and the outer wall of the first centering rod 3 is rotationally connected with the inner wall of the second centering rod 4, and the second centering rod 4 is provided with a second rotating wheel 401 at one end, and the surface of the second centering rod 4 is provided with a second threaded groove 402.

[0045] Further, the second rotating wheel 401 is the same in shape as the first rotating wheel 301, and the size of the second rotating wheel 401 is greater than that of the first rotating wheel 301.

[0046] Further, the inner wall of the second centering rod 4 is smeared with lubricating oil, so that the first centering rod 3 or the second centering rod 4 does not interfere with each other when rotating.

[0047] In further provided embodiments of the present application, the first centering assembly comprises a second centering strip 602, and the surface of one side of the second centering strip 602 is provided with a second friction surface 604, and the other side of the second centering strip 602 is provided with a second connecting groove 603, and the second connecting groove 603 is rotationally connected with a second connecting strip 601, and the surface of the first threaded groove 302 is rotationally connected with a first adjusting ring 303, and the surface of the first adjusting ring 303 is connected with a third connecting seat 6, and one end of the second connecting strip 601 is hingedly connected with the third connecting seat 6.

[0048] Further, the second connecting strip 601 is two, and the two second connecting strips 601 are hingedly connected at the center.

[0049] Further, the first centering assembly is four, and is arranged in a circular equidistant array with the center point of the first centering rod 3.

[0050] The second centering assembly comprises the first centering strip 503, one side surface of the first centering strip 503 is provided with the first friction surface 505, the other side of the first centering strip 503 is provided with the first connecting groove 504, the first connecting groove 504 is rotationally connected with the first connecting strip 502 and the third connecting strip 506, the first connecting strip 502 and the third connecting strip 506 are hingedly connected at the center, one end surface of the second centering rod 4 is rotationally connected with the third adjusting ring 406, the surface of the third adjusting ring 406 is connected with the second connecting seat 501, one end of the third connecting strip 506 is hingedly connected with the second connecting seat 501, the surface of the second screw groove 402 is rotationally connected with the second adjusting ring 403, the surface of the second adjusting ring 403 is connected with the first connecting seat 5, and one end of the first connecting strip 502 is hingedly connected with the first connecting seat 5.

[0051] Further, after centering, the first friction surface 505 and the second friction surface 604 abut on the inner wall of the pipe material 105, so that the first centering strip 503 and the second centering strip 602 generate sufficient friction force with the pipe material 105 to drive the pipe material 105 to move.

[0052] Further, the end connecting position between the two first centering rods 3 is located on the vertical line of the second centering strip 602, the second centering assembly has two groups, and is mirror-symmetrically arranged with the vertical line of the second centering strip 602, and the second centering assembly in each group is four, and is arranged in a ring-shaped equidistant array with the center point of the first centering rod 3.

[0053] In the further provided embodiment of the application, the second connecting seat 501 and the third connecting seat 6 are hingedly connected with the tensioning plate 404, one end of the tensioning plate 404 is fixedly connected with the driving rod 405, one side surface of the driving rod 405 abuts on one end of the third adjusting ring 406, and one end of the driving rod 405 is rotationally matched with the surface of the second centering rod 4.

[0054] Specifically, when the second centering rod 4 rotates, the second connecting seat 501 on the third adjusting ring 406 is pulled by the tensioning plate 404, so that the third adjusting ring 406 does not rotate together, and the first centering rod 3 also does not rotate; when the first centering rod 3 rotates, the first adjusting ring 303 is driven to move, so that the third adjusting ring 406 is pulled by the tensioning plate 404, and the second centering rod 4 is pulled to slide inward, thereby driving the front pipe material 105 and the rear pipe material 105 on the second centering assembly to move towards the middle pipe material 105, so that the pipe materials 105 abut against each other, the welding joints are tightly combined, and no gap is generated.

[0055] Further, the adapter head 103 is internally provided with an adapter groove 104.

[0056] Further, the shape of the adapting groove 104 is adapted to the shape of the second rotating wheel 401 and the first rotating wheel 301, and there is a different adapting head 103, the size of which is adapted to the second rotating wheel 401 and the first rotating wheel 301 respectively, and the adapting head 103 can be externally connected to the electric rotating head in the prior art.

[0057] Specifically, after the adapting head 103 is inserted into the second rotating wheel 401 or the first rotating wheel 301, the electric rotating head is started to drive the second rotating wheel 401 or the first rotating wheel 301 to rotate, and when the first rotating wheel 301 rotates, the staff can appropriately hold the second rotating wheel 401, so that the first rotating wheel 301 can rotate without interference, and vice versa, so that when the second rotating wheel 401 or the first rotating wheel 301 rotates, only the structure connected thereto moves, and the centering mechanism as a whole does not move.

[0058] In the present application, before welding, the staff starts the electric guide rail 1 to drive the support seat 102 and the support rod 2 to slide to the appropriate position according to the length of each section of the pipe 105, then places the segmented pipe 105 on the support seat 102 and the rotating seat 202, and then inserts the centering mechanism into the pipe 105, and makes the first centering assembly in the middle section of the pipe 105, and the two second centering assemblies in the front section of the pipe 105 and the rear section of the pipe 105 respectively; when centering, first rotate the two second centering rods 4, under the action of the second screw groove 402, make the second adjusting ring 403 move horizontally towards the center, thereby driving the first connecting strip 502 and the third connecting strip 506 to rotate and open, and then synchronously opening the first centering strip 503 to drive the center points of the front section of the pipe 105 and the rear section of the pipe 105 to the same line; then simultaneously rotate the two first centering rods 3, under the action of the first screw groove 302, make the two first adjusting rings 303 move horizontally towards the center, approach each other, and then synchronously open the second centering strip 602 to center the middle section of the pipe 105, so that the three sections of the pipe 105 are centered to the same line; synchronously, when the first adjusting ring 303 moves, the third adjusting ring 406 is pulled by the pulling plate 404, and then the second centering rod 4 is pulled to slide inward, thereby driving the front section of the pipe 105 and the rear section of the pipe 105 to move towards the middle section of the pipe 105, so that the three sections of the pipe 105 are tightly abutted, the welding joint is tightly combined, and no gap is generated; finally, start the driving motor 208 to drive a gear 204 to rotate, and under the synchronous action of the transmission belt 206 and the belt pulley 205, make the two gears 204 rotate synchronously, and then drive the tooth ring 203 to rotate on the rotating seat 202, so as to drive the laser welder 210 to rotate around the welding joint for one round of welding.

[0059] The foregoing merely illustrates some exemplary embodiments of the application, and no doubt numerous modifications and alterations thereto will be apparent to those skilled in the art. Accordingly, the above description is intended for purposes of illustration only and should not be construed as limiting the scope of the application.

Claims

1. A multi-section welding device for pipe processing, comprising an electric guide rail (1) and an adjusting groove (101) arranged on the upper surface of the electric guide rail (1), characterized in that: The supporting seat (102) is provided with a supporting rod (2) and a supporting seat (102), and the supporting rod (2) is provided with a welding mechanism; the upper surface of the supporting seat (102) is provided with a V-shaped groove, and the V-shaped groove is placed with a pipe material (105); the pipe material (105) is provided with a centering mechanism, and the centering mechanism comprises a first centering assembly and a second centering assembly. Before the pipe material (105) is welded, the centering mechanism is placed in the pipe material (105), and the first centering assembly and the second centering assembly are used to respectively center the multiple pipe materials in the pipe material (105), so that the center of the pipe material (105) is aligned, and the pipe material (105) is passively pulled when being connected to make the interfaces of the multiple pipe materials tightly connected to each other; The centering mechanism further comprises a first centering rod (3), and one end of the first centering rod (3) is provided with a first rotating wheel (301), and the surface of the first centering rod (3) is provided with a first threaded groove (302); The centering mechanism further comprises a second centering rod (4) which is sleeved on the surface of the first centering rod (3), and the outer wall of the first centering rod (3) and the inner wall of the second centering rod (4) are rotationally connected, and one end of the second centering rod (4) is provided with a second rotating wheel (401), and the surface of the second centering rod (4) is provided with a second threaded groove (402); The first centering rod (3), the second centering rod (4), the first rotating wheel (301) and the first threaded groove (302) are all two, and the two first centering rods (3) are rotationally connected at the end positions, and the first centering rod (3), the second centering rod (4), the first rotating wheel (301) and the first threaded groove (302) are mirror symmetrically connected at the end positions; The first centering assembly comprises a second centering strip (602), and one side surface of the second centering strip (602) is provided with a second friction surface (604), and the other side of the second centering strip (602) is provided with a second connecting groove (603), and the second connecting groove (603) is rotationally connected with a second connecting strip (601), and the surface of the first threaded groove (302) is rotationally connected with a first adjusting ring (303), and the surface of the first adjusting ring (303) is connected with a third connecting seat (6), and one end of the second connecting strip (601) is hingedly connected with the third connecting seat (6). The second centering assembly comprises a first centering strip (503), one side surface of the first centering strip (503) is provided with a first friction surface (505), the other side of the first centering strip (503) is provided with a first connecting groove (504), a first connecting strip (502) and a third connecting strip (506) are rotatably connected in the first connecting groove (504), the first connecting strip (502) and the third connecting strip (506) are hinged at the center, one end surface of the second centering rod (4) is rotatably connected with a third adjusting ring (406), the surface of the third adjusting ring (406) is connected with a second connecting seat (501), one end of the third connecting strip (506) is hinged with the second connecting seat (501), the surface of the second screw groove (402) is rotatably connected with a second adjusting ring (403), the surface of the second adjusting ring (403) is connected with a first connecting seat (5), and one end of the first connecting strip (502) is hinged with the first connecting seat (5); The second connecting seat (501) and the third connecting seat (6) are hinged with a tensioning plate (404), one end of the tensioning plate (404) is fixedly connected with a driving rod (405), one side surface of the driving rod (405) abuts against one end of the third adjusting ring (406), and one end of the driving rod (405) is rotatably connected with the surface of the second centering rod (4).

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