Welding equipment for welding oval steel tube with finned tube

Abstract

The invention belongs to the technical field of radiating tube manufacturing, and particularly relates to welding equipment for welding an oval steel tube with a finned tube. During working, the reciprocating motion mechanism drives the first auxiliary mechanism and the second auxiliary mechanism to reciprocate on the workbench, so that the first auxiliary mechanism and the second auxiliary mechanism are matched to attach a steel belt to the outer side wall of an oval steel pipe during welding; the steel pipe is arranged in a third auxiliary structure in a penetrating mode, one end of the oval steel pipe is fixed through a dragging traction mechanism, the oval steel pipe is driven to move, and therefore the steel pipe can be firmly attached to the oval steel pipe. The first auxiliary mechanism and the second auxiliary mechanism are matched to attach the steel belt to the outer side wall of the oval steel pipe during welding, meanwhile, the up-down reciprocating assembly enables the first welding electrode to be in contact with the oval steel pipe all the time, the second auxiliary mechanism enables the second welding electrode to be in contact with the oval steel pipe all the time, and therefore welding work is automatically completed; convenience, rapidness and high production efficiency are realized.

Description

Technical Field

[0001] The invention belongs to the technical field of heat dissipation tube manufacturing, and in particular relates to welding equipment for welding fin tubes to elliptical steel tubes. Background Art

[0002] In order to improve the heat exchange efficiency, a fin strip is usually wound around the outer wall of a steel tube to obtain a fin tube, thereby increasing the heat dissipation area of ​​the base tube, thereby achieving the purpose of improving the heat exchange efficiency of the base tube.

[0003] Since the oval cold-wound finned tube has the characteristics of small windward resistance, large heat contact surface and small leeward eddy zone, it is very popular among users. However, there is currently no equipment dedicated to welding finned tubes with oval steel tubes, and in the process of using simple auxiliary tooling, the fin strip and the oval steel tube are often not tightly fitted, resulting in welding leakage. Therefore, a welding equipment for welding finned tubes with oval steel tubes is needed to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a welding device for welding finned tubes to elliptical steel tubes to solve the above problems.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] A welding device for welding finned tubes of elliptical steel tubes, comprising:

[0007] A reciprocating mechanism is arranged on the bottom surface of the workbench, and both movable ends of the reciprocating mechanism extend out of the top surface of the workbench. A plurality of legs are fixedly connected to the bottom of the workbench to support the workbench;

[0008] A third auxiliary structure is arranged on the top surface of the workbench, the elliptical steel pipe is slidably connected in the third auxiliary structure, and the third auxiliary structure rotates with the elliptical steel pipe;

[0009] A first auxiliary structure, disposed on the top surface of the workbench and fixedly connected to a movable end of the reciprocating mechanism;

[0010] A second auxiliary mechanism, which is arranged on the top surface of the workbench and is fixedly connected to the other movable end of the reciprocating mechanism, the second auxiliary mechanism is arranged corresponding to the first auxiliary structure, and the second auxiliary mechanism and the first auxiliary structure are used to keep the elliptical steel pipe stable during the welding process;

[0011] A first welding mechanism is arranged on the top surface of the workbench, wherein a first welding electrode of the first welding mechanism is arranged corresponding to the elliptical steel pipe, and an up-and-down reciprocating assembly is arranged in the first welding mechanism;

[0012] A second welding mechanism is arranged on the second auxiliary mechanism, and a second welding electrode of the second welding mechanism is arranged corresponding to the elliptical steel pipe;

[0013] The dragging and traction mechanism is arranged on one side of the workbench, and a lifting component is arranged in the middle of the dragging and traction mechanism.

[0014] Preferably, the reciprocating mechanism comprises:

[0015] A third reducer is fixedly connected to the bottom surface of the workbench, the input shaft of the third reducer is coaxially fixedly connected to the output shaft of the third motor, and the third motor is fixedly connected to the bottom surface of the workbench;

[0016] A first rotating shaft, rotatably connected to the bottom surface of the workbench, one end of the first rotating shaft is coaxially fixedly connected to the output shaft of the third reducer, two first eccentric wheels are fixedly connected to the first rotating shaft, the two first eccentric wheels are eccentrically arranged between each other, and the two first eccentric wheels are eccentrically arranged with the first rotating shaft;

[0017] Two connecting blocks, each of which is provided with a first mounting groove, and first rollers are rotatably connected to both inner side walls of the first mounting groove, and the two first eccentric wheels are respectively located in the two first mounting grooves, and the first rollers are in rolling contact with the first eccentric wheels;

[0018] Two L-shaped transmission members are respectively fixed to the two connecting blocks, the two L-shaped transmission members are far away from each other, one end of the L-shaped transmission member away from the connecting block passes through the through slot and out of the top surface of the workbench, and the two through slots are both provided on the workbench;

[0019] A first mounting seat is arranged on the top surface of the workbench, a first slider is fixedly connected to the bottom surface of the first mounting seat, the first slider is slidably connected to a first slide rail, the first slide rail is fixedly connected to the top surface of the workbench, and the first mounting seat is fixedly connected to one of the L-shaped transmission members;

[0020] The second mounting seat is arranged on the top surface of the workbench, the bottom surface of the second mounting seat is fixedly connected with a second slider, the second slider is slidably connected to the second slide rail, the second slide rail is fixedly connected to the top surface of the workbench, and the second mounting seat is fixedly connected to another L-shaped transmission member.

[0021] Preferably, the first auxiliary structure comprises:

[0022] A second fixed mounting block, fixedly mounted on the top surface of the first mounting seat;

[0023] A second vertical slide plate, slidably connected to a side of the second fixed mounting block close to the oval steel pipe;

[0024] a fourth threaded rod, arranged vertically, the bottom end of the fourth threaded rod being rotatably connected to the second vertical slide plate, the fourth threaded rod being threadedly connected in a fourth threaded block, the fourth threaded block being fixedly connected to the top end of the second fixed mounting block, and the top end of the fourth threaded rod passing through the fourth threaded block;

[0025] An extrusion block is fixedly connected to a side of the second vertical slide plate facing the oval steel pipe, and an arc groove is formed at one end of the extrusion block close to the oval steel pipe;

[0026] a fifth threaded block, fixedly connected to the first mounting seat, a fifth threaded rod being threadedly connected to the fifth threaded block, both ends of the fifth threaded rod passing through the fifth threaded block, and one end of the fifth threaded rod being rotatably connected to the second fixed mounting block;

[0027] A first sliding groove is provided on the bottom surface of the second fixed installation block, and a bolt passes through the first sliding groove and is fixedly connected to the first mounting seat. The second fixed installation block can be moved along the length direction of the first sliding groove by loosening the bolt.

[0028] Preferably, the second auxiliary mechanism comprises:

[0029] A sliding mounting plate, slidably connected in a slide groove, wherein the slide groove is provided on a top surface of the second mounting seat;

[0030] A first fixed mounting block is fixedly connected to the top surface of the sliding mounting plate, wherein an end of the first fixed mounting block away from the elliptical steel pipe is fixedly connected to the extended end of the first telescopic cylinder, and a power end of the first telescopic cylinder is fixedly connected to the second mounting seat;

[0031] A first vertical slide plate is slidably connected to a side of the first fixed mounting block close to the elliptical steel pipe, a first threaded rod is rotatably connected to the top of the first vertical slide plate, a first threaded rod is vertically threadedly connected to the first threaded block, a top of the first threaded rod passes through the first threaded block, and the first threaded block is fixedly connected to the top of the first fixed mounting block;

[0032] A first fixing block is fixedly connected to the top of the first fixed mounting block, the first fixing block is provided with a first fixing rod, one end of the first fixing rod passes through the first fixing block and is fixedly connected with a guide groove, the guide groove is used to guide the steel belt;

[0033] The second shaft seat is fixedly connected to a side of the first vertical sliding plate close to the elliptical steel pipe, and an auxiliary extrusion plate is rotatably connected to the second shaft seat. The auxiliary extrusion plate is correspondingly arranged to the extrusion block, and the extrusion block and the auxiliary extrusion plate are respectively located on two opposite sides of the elliptical steel pipe. A steel belt groove is opened on the auxiliary extrusion plate, and the steel belt is slidably connected in the steel belt groove. One side edge of the steel belt extends out of the steel belt groove and abuts against the outer side wall of the elliptical steel pipe.

[0034] Preferably, the third assistance includes:

[0035] A mounting frame fixedly connected to the top surface of the workbench;

[0036] A turntable, rotatably connected to the mounting frame;

[0037] The second rotating tube is coaxially fixed on the rotating disk, and the second rotating tube is matched with the elliptical steel tube.

[0038] Preferably, the first welding mechanism comprises:

[0039] A gantry frame is fixedly connected to the top surface of the workbench, and the up and down reciprocating assembly is arranged on the gantry frame;

[0040] A third fixed block is fixedly mounted on the movable end of the upper and lower reciprocating assembly, a plurality of horizontally arranged second sliding grooves are opened on the third fixed block, bolts pass through the second sliding grooves and are threadedly connected to the movable end of the upper and lower reciprocating assembly, a third threaded rod horizontally arranged is rotatably connected to one side of the third fixed block, the third threaded rod is threadedly connected to the third threaded block, the third threaded block is fixedly connected to the movable end of the upper and lower reciprocating assembly, and the position of the third fixed block can be adjusted by rotating the third threaded rod by loosening the bolt;

[0041] The second mounting plate is fixedly connected to the third fixed block, the second mounting plate is fixedly connected to a second connecting frame, the top of the second connecting frame is fixedly connected to a fourth telescopic cylinder, the extended end of the fourth telescopic cylinder extends into the second connecting frame and is fixedly connected to a fourth slider, the fourth slider is slidably connected in the second connecting frame, and the fourth slider extends out of the second connecting frame and is fixedly connected to the first welding electrode.

[0042] Preferably, the second welding mechanism comprises:

[0043] A fixing frame, fixedly connected to the second mounting seat;

[0044] The second fixing block is fixedly mounted on the fixing frame by bolts, a plurality of third sliding grooves arranged horizontally are provided on the second fixing block, the bolts pass through the third sliding grooves and are threadedly connected to the fixing frame, one end of the second fixing block is rotatably connected to a second threaded rod arranged horizontally, the second threaded rod is threadedly connected to the second threaded block, the second threaded block is fixedly connected to the fixing frame, and the position of the second fixing block can be adjusted by loosening the bolts;

[0045] The first mounting plate is fixedly connected to the second fixed block, the first mounting plate is fixedly connected to a first connecting frame, one end of the first connecting frame is fixedly connected to a third telescopic cylinder, the output shaft of the third telescopic cylinder extends into the first connecting frame and is fixedly connected to a fifth slider, the fifth slider is slidably connected in the first connecting frame, and the fifth slider is fixedly connected to the second welding electrode.

[0046] Preferably, the up and down reciprocating assembly comprises:

[0047] A third mounting seat is arranged on a side of the gantry frame close to the elliptical steel pipe, a third slider is fixedly connected to the third mounting seat, the third slider is slidably connected to a third slide rail, the third slide rail is vertically fixed to the gantry frame, and the third threaded block and the third fixed block are both arranged on the third mounting seat;

[0048] A roller mounting seat is fixedly connected to a side of the third mounting seat away from the third fixing block, and two second rollers are mounted on the roller mounting seat, and the two second rollers are arranged correspondingly up and down;

[0049] A fourth motor is fixedly connected to the gantry, a second rotating shaft is coaxially fixedly connected to the output shaft of the fourth motor, the second rotating shaft is horizontally rotatably connected to the gantry, a second eccentric wheel is fixedly connected to the second rotating shaft, the second eccentric wheel is eccentrically arranged with respect to the second rotating shaft, the second eccentric wheel is located between the two second rollers and is in rolling contact with the two second rollers.

[0050] Preferably, the dragging and traction mechanism comprises:

[0051] A sliding track is arranged on one side of the workbench, the sliding track is arranged along the length direction of the elliptical steel pipe, and a drag chain groove for placing the drag chain is arranged on the sliding track;

[0052] A sliding plate, slidably connected to the sliding track;

[0053] A first motor is fixedly connected to the top surface of the sliding plate, an output shaft of the first motor is coaxially fixedly connected to an input shaft of a first reducer, the first reducer is fixedly connected to the sliding plate, a first shaft seat is fixedly connected to the top surface of the sliding plate, a first rotating tube is rotatably connected to the first shaft seat, a fixed head is fixedly connected to one end of the first rotating tube, the first rotating tube is coaxially arranged with the second rotating tube, the fixed head is far away from the second rotating tube, and the first rotating tube is connected to the output shaft of the first reducer through a synchronous belt transmission;

[0054] The second motor is fixedly connected to the top surface of the sliding plate, the input shaft of the second reducer is coaxially fixedly connected to the output shaft of the second motor, the second reducer is fixedly connected to the sliding plate, the output shaft of the second reducer is fixedly connected to the first bevel gear, the first bevel gear is meshed with the second bevel gear, the second bevel gear is coaxially fixedly connected to a vertically arranged rotating shaft, the rotating shaft is rotatably connected to the sliding plate, the bottom end of the rotating shaft passes through the sliding plate and is coaxially fixedly connected with a toothed disk, the toothed disk is meshed with a rack, the rack is fixedly connected to the sliding track, and the rack is arranged along the length direction of the sliding track.

[0055] Preferably, the lifting assembly comprises:

[0056] A second telescopic cylinder is vertically fixed in the sliding track and is located in the middle of the sliding track;

[0057] The top plate is horizontally fixed to the extended end of the second telescopic cylinder. Two parallel baffles are fixed to the top surface of the top plate, and the elliptical steel pipe passes between the two baffles.

[0058] Compared with the prior art, the present invention has the following advantages and technical effects:

[0059] When the present invention is working, the reciprocating mechanism drives the first auxiliary structure and the second auxiliary mechanism to reciprocate on the workbench, so that the first auxiliary structure and the second auxiliary mechanism cooperate to fit the steel strip and the outer wall of the elliptical steel pipe during welding, so as to avoid the problem of welding leakage caused by the loose fitting of the steel strip and the elliptical steel pipe. The steel pipe is inserted into the third auxiliary structure, and one end of the elliptical steel pipe is fixed by the dragging and traction mechanism to drive the elliptical steel pipe to move. The first auxiliary structure and the second auxiliary mechanism cooperate to fit the steel strip and the outer wall of the elliptical steel pipe during welding. At the same time, the upper and lower reciprocating components keep the first welding electrode in contact with the elliptical steel pipe at all times, and the second auxiliary mechanism keeps the second welding electrode in contact with the elliptical steel pipe at all times, so as to automatically complete the welding work. Except for loading and unloading, no manual participation is required, which is convenient and fast with high production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor:

[0061] Figure 1 A top view of the present invention;

[0062] Figure 2 It is a schematic diagram of the overall structure of the workbench part of the present invention;

[0063] Figure 3 It is a structural schematic diagram of the workbench in the present invention;

[0064] Figure 4 It is a structural schematic diagram of the reciprocating mechanism in the present invention;

[0065] Figure 5 It is a structural schematic diagram of the first welding mechanism in the present invention;

[0066] Figure 6 It is a back view of the first welding mechanism in the present invention;

[0067] Figure 7 is a schematic structural diagram of the second welding mechanism in the present invention;

[0068] Among them, 1, workbench; 2, steel belt placement rack; 3, first slide rail; 4, second slide rail; 5, second mounting seat; 6, first telescopic cylinder; 7, first mounting seat; 8, first slider; 9, sliding track; 10, drag chain slot; 11, sliding plate; 12, first motor; 13, first reducer; 14, second telescopic cylinder; 15, second motor; 16, second reducer; 17, first bevel gear; 18, toothed disc; 19, rack; 20, second bevel gear; 21, first shaft seat; 22, first a rotating tube; 23, a fixed head; 24, a top plate; 25, a baffle; 26, a second slider; 27, a leg; 28, a third motor; 29, a third reducer; 30, a through slot; 31, an L-shaped transmission member; 32, a first rotating shaft; 33, a first eccentric wheel; 34, a connecting block; 35, a first mounting slot; 36, a first roller; 37, a slide slot; 38, a fixed frame; 39, a sliding mounting plate; 40, a first fixed mounting block; 41, a first fixed block; 42, a first fixed rod; 43, a first mounting Mounting plate; 44, second threaded block; 45, first connecting frame; 46, third telescopic cylinder; 47, second welding electrode; 48, second shaft seat; 49, auxiliary extrusion plate; 50, guide groove; 51, first vertical slide plate; 52, first threaded rod; 53, first threaded block; 54, second threaded rod; 55, second fixed block; 56, mounting frame; 57, turntable; 58, second rotating tube; 59, gantry; 60, third slide rail; 61, third slider; 62, third mounting seat; 63, The third fixed block; 64, the third threaded rod; 65, the third threaded block; 66, the second mounting plate; 67, the fourth telescopic cylinder; 68, the second connecting frame; 69, the first welding electrode; 70, the second vertical slide; 71, the second fixed mounting block; 72, the fourth threaded block; 73, the fourth threaded rod; 74, the extrusion block; 75, the fourth motor; 76, the second rotating shaft; 77, the second eccentric wheel; 78, the roller mounting seat; 79, the second roller; 80, the fifth threaded block; 81, the fifth threaded rod. DETAILED DESCRIPTION

[0069] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0070] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0071] Reference Figures 1 to 7 The present invention discloses a welding device for welding an elliptical steel tube to a fin tube, comprising:

[0072] The reciprocating mechanism is arranged on the bottom surface of the workbench 1, and the two movable ends of the reciprocating mechanism extend out of the top surface of the workbench 1. A plurality of legs 27 are fixedly connected to the bottom of the workbench 1 for supporting the workbench 1;

[0073] A steel strip placement rack 2 is also fixedly mounted on the workbench 1 , and the steel strip coil is placed on the steel strip placement rack 2 .

[0074] A third auxiliary structure is arranged on the top surface of the workbench 1, the elliptical steel pipe is slidably connected in the third auxiliary structure, and the third auxiliary structure rotates with the elliptical steel pipe;

[0075] A first auxiliary structure is arranged on the top surface of the workbench 1 and is fixedly connected to a movable end of the reciprocating mechanism;

[0076] A second auxiliary mechanism is arranged on the top surface of the workbench 1 and is fixedly connected to the other movable end of the reciprocating mechanism. The second auxiliary mechanism is arranged corresponding to the first auxiliary structure. The second auxiliary mechanism and the first auxiliary structure are used to keep the elliptical steel pipe stable during the welding process;

[0077] A first welding mechanism is arranged on the top surface of the workbench 1, a first welding electrode 69 of the first welding mechanism is arranged corresponding to the elliptical steel pipe, and an up and down reciprocating assembly is arranged in the first welding mechanism;

[0078] A second welding mechanism is arranged on the second auxiliary mechanism, and a second welding electrode 47 of the second welding mechanism is arranged corresponding to the oval steel pipe;

[0079] The dragging and traction mechanism is arranged on one side of the workbench 1, and a lifting component is arranged in the middle of the dragging and traction mechanism.

[0080] Further optimization scheme, the reciprocating mechanism includes:

[0081] The third reducer 29 is fixedly connected to the bottom surface of the workbench 1. The input shaft of the third reducer 29 is coaxially fixedly connected to the output shaft of the third motor 28. The third motor 28 is fixedly connected to the bottom surface of the workbench 1.

[0082] A first rotating shaft 32 is rotatably connected to the bottom surface of the workbench 1, one end of the first rotating shaft 32 is coaxially fixedly connected to the output shaft of the third reducer 29, two first eccentric wheels 33 are fixedly connected to the first rotating shaft 32, the two first eccentric wheels 33 are eccentrically arranged between each other, and the two first eccentric wheels 33 and the first rotating shaft 32 are eccentrically arranged between each other;

[0083] Two connecting blocks 34, each of which is provided with a first mounting groove 35, and first rollers 36 are rotatably connected to both inner side walls of the first mounting groove 35, and the two first eccentric wheels 33 are respectively located in the two first mounting grooves 35, and the first rollers 36 are in rolling contact with the first eccentric wheels 33;

[0084] Two L-shaped transmission members 31 are fixedly connected to two connecting blocks 34 respectively. The two L-shaped transmission members 31 are away from each other. One end of the L-shaped transmission member 31 away from the connecting block 34 passes through the through slot 30 and passes through the top surface of the workbench 1. Both through slots 30 are provided on the workbench 1.

[0085] A first mounting seat 7 is arranged on the top surface of the workbench 1, a first slider 8 is fixedly connected to the bottom surface of the first mounting seat 7, the first slider 8 is slidably connected to the first slide rail 3, the first slide rail 3 is fixedly connected to the top surface of the workbench 1, and the first mounting seat 7 is fixedly connected to one of the L-shaped transmission members 31;

[0086] The second mounting seat 5 is arranged on the top surface of the workbench 1. The bottom surface of the second mounting seat 5 is fixedly connected with a second slider 26. The second slider 26 is slidably connected to the second slide rail 4. The second slide rail 4 is fixedly connected to the top surface of the workbench 1. The second mounting seat 5 is fixedly connected to another L-shaped transmission member 31.

[0087] Further optimizing the scheme, the first auxiliary structure includes:

[0088] A second fixed mounting block 71, fixedly mounted on the top surface of the first mounting seat 7;

[0089] A second vertical slide plate 70 is slidably connected to a side of the second fixed mounting block 71 close to the oval steel pipe;

[0090] The fourth threaded rod 73 is vertically arranged, the bottom end of the fourth threaded rod 73 is rotatably connected to the second vertical slide plate 70, the fourth threaded rod 73 is threadedly connected in the fourth threaded block 72, the fourth threaded block 72 is fixedly connected to the top end of the second fixed mounting block 71, and the top end of the fourth threaded rod 73 passes through the fourth threaded block 72;

[0091] The extrusion block 74 is fixedly connected to the side of the second vertical slide plate 70 facing the oval steel pipe, and an arc groove is formed at one end of the extrusion block 74 close to the oval steel pipe;

[0092] A fifth threaded block 80 is fixedly connected to the first mounting seat 7. A fifth threaded rod 81 is threadedly connected to the fifth threaded block 80. Both ends of the fifth threaded rod 81 pass through the fifth threaded block 80. One end of the fifth threaded rod 81 is rotatably connected to the second fixed mounting block 71.

[0093] A first sliding groove is formed on the bottom surface of the second fixed mounting block 71 . A bolt passes through the first sliding groove and is fixedly connected to the first mounting seat 7 . The second fixed mounting block 71 can be moved along the length direction of the first sliding groove by loosening the bolt.

[0094] To further optimize the solution, the second auxiliary mechanism includes:

[0095] A sliding mounting plate 39 is slidably connected in the slide groove 37, and the slide groove 37 is provided on the top surface of the second mounting seat 5;

[0096] A first fixed mounting block 40 is fixedly connected to the top surface of the sliding mounting plate 39. An end of the first fixed mounting block 40 away from the elliptical steel tube is fixedly connected to the extended end of the first telescopic cylinder 6. The power end of the first telescopic cylinder 6 is fixedly connected to the second mounting seat 5.

[0097] A first vertical slide plate 51 is slidably connected to a side of the first fixed installation block 40 close to the oval steel pipe. A first threaded rod 52 is rotatably connected to the top of the first vertical slide plate 51. The first threaded rod 52 is vertically threadedly connected to the first threaded block 53. The top of the first threaded rod 52 passes through the first threaded block 53. The first threaded block 53 is fixed to the top of the first fixed installation block 40.

[0098] A first fixing block 41 is fixedly connected to the top of the first fixing mounting block 40. A first fixing rod 42 is provided on the first fixing block 41. One end of the first fixing rod 42 passes through the first fixing block 41 and is fixedly connected to a guide groove 50. The guide groove 50 is used to guide the steel belt.

[0099] The second shaft seat 48 is fixedly connected to one side of the first vertical slide plate 51 close to the elliptical steel pipe. An auxiliary extrusion plate 49 is rotatably connected to the second shaft seat 48. The auxiliary extrusion plate 49 is arranged corresponding to the extrusion block 74. The extrusion block 74 and the auxiliary extrusion plate 49 are respectively located on the opposite sides of the elliptical steel pipe. A steel belt groove is opened on the auxiliary extrusion plate 49. The steel belt is slidably connected in the steel belt groove. One side edge of the steel belt extends out of the steel belt groove and abuts against the outer wall of the elliptical steel pipe.

[0100] To further optimize the solution, the third auxiliary includes:

[0101] A mounting frame 56 is fixedly connected to the top surface of the workbench 1;

[0102] A turntable 57 is rotatably connected to the mounting frame 56;

[0103] The second rotating tube 58 is coaxially fixed to the rotating disk 57 , and the second rotating tube 58 is matched with the elliptical steel tube.

[0104] Further optimizing the scheme, the first welding mechanism includes:

[0105] A gantry 59 is fixedly connected to the top surface of the workbench 1, and the up and down reciprocating assembly is arranged on the gantry 59;

[0106] The third fixed block 63 is fixedly mounted on the movable end of the upper and lower reciprocating assembly. The third fixed block 63 is provided with a plurality of horizontally arranged second sliding grooves. Bolts pass through the second sliding grooves and are threadedly connected to the movable end of the upper and lower reciprocating assembly. A horizontally arranged third threaded rod 64 is rotatably connected to one side of the third fixed block 63. The third threaded rod 64 is threadedly connected to the third threaded block 65. The third threaded block 65 is fixedly connected to the movable end of the upper and lower reciprocating assembly. The position of the third fixed block 63 can be adjusted by loosening the bolts and rotating the third threaded rod 64.

[0107] The second mounting plate 66 is fixedly connected to the third fixed block 63, and a second connecting frame 68 is fixedly connected to the second mounting plate 66. A fourth telescopic cylinder 67 is fixedly connected to the top of the second connecting frame 68. The extended end of the fourth telescopic cylinder 67 extends into the second connecting frame 68 and is fixedly connected to a fourth slider. The fourth slider is slidably connected in the second connecting frame 68, and the fourth slider extends out of the second connecting frame 68 and is fixedly connected to the first welding electrode 69.

[0108] Further optimizing the scheme, the second welding mechanism includes:

[0109] A fixing frame 38, fixedly connected to the second mounting base 5;

[0110] The second fixing block 55 is fixedly mounted on the fixing frame 38 by bolts. A plurality of third sliding grooves arranged horizontally are provided on the second fixing block 55. The bolts pass through the third sliding grooves and are threadedly connected to the fixing frame 38. One end of the second fixing block 55 is rotatably connected to a second threaded rod 54 arranged horizontally. The second threaded rod 54 is threadedly connected to the second threaded block 44. The second threaded block 44 is fixedly connected to the fixing frame 38. The position of the second fixing block 55 can be adjusted by loosening the bolts.

[0111] The first mounting plate 43 is fixedly connected to the second fixed block 55. The first mounting plate 43 is fixedly connected to the first connecting frame 45. One end of the first connecting frame 45 is fixedly connected to the third telescopic cylinder 46. The output shaft of the third telescopic cylinder 46 extends into the first connecting frame 45 and is fixedly connected to the fifth slider. The fifth slider is slidably connected in the first connecting frame 45 and is fixedly connected to the second welding electrode 47.

[0112] To further optimize the solution, the up and down reciprocating components include:

[0113] A third mounting seat 62 is arranged on a side of the gantry 59 close to the oval steel pipe. A third slider 61 is fixedly connected to the third mounting seat 62. The third slider 61 is slidably connected to a third slide rail 60. The third slide rail 60 is vertically fixed to the gantry 59. A third threaded block 65 and a third fixing block 63 are both arranged on the third mounting seat 62.

[0114] The roller mounting seat 78 is fixedly connected to the side of the third mounting seat 62 away from the third fixing block 63. Two second rollers 79 are mounted on the roller mounting seat 78. The two second rollers 79 are arranged correspondingly up and down.

[0115] The fourth motor 75 is fixedly connected to the gantry 59. The second rotating shaft 76 is coaxially fixedly connected to the output shaft of the fourth motor 75. The second rotating shaft 76 is horizontally rotatably connected to the gantry 59. The second eccentric wheel 77 is fixedly connected to the second rotating shaft 76. The second eccentric wheel 77 is eccentrically arranged with respect to the second rotating shaft 76. The second eccentric wheel 77 is located between the two second rollers 79 and is in rolling contact with the two second rollers 79.

[0116] To further optimize the scheme, the dragging and traction mechanism includes:

[0117] A sliding track 9 is arranged on one side of the workbench 1, and the sliding track 9 is arranged along the length direction of the elliptical steel pipe. A drag chain groove 10 for placing a drag chain is arranged on the sliding track 9;

[0118] A sliding plate 11 is slidably connected to the sliding track 9;

[0119] The first motor 12 is fixedly connected to the top surface of the sliding plate 11, the output shaft of the first motor 12 is coaxially fixedly connected to the input shaft of the first reducer 13, the first reducer 13 is fixedly connected to the sliding plate 11, the top surface of the sliding plate 11 is fixedly connected to the first shaft seat 21, the first shaft seat 21 is rotatably connected to the first rotating tube 22, one end of the first rotating tube 22 is fixedly connected to the fixed head 23, the first rotating tube 22 is coaxially arranged with the second rotating tube 58, the fixed head 23 is far away from the second rotating tube 58, and the first rotating tube 22 is connected to the output shaft of the first reducer 13 through a synchronous belt transmission;

[0120] The second motor 15 is fixedly connected to the top surface of the sliding plate 11, and the input shaft of the second reducer 16 is coaxially fixedly connected to the output shaft of the second motor 15. The second reducer 16 is fixedly connected to the sliding plate 11, and the first bevel gear 17 is fixedly connected to the output shaft of the second reducer 16. The first bevel gear 17 is meshed with the second bevel gear 20. The second bevel gear 20 is coaxially fixedly connected to a vertically arranged rotating shaft, and the rotating shaft is rotatably connected to the sliding plate 11. The bottom end of the rotating shaft passes through the sliding plate 11 and is coaxially fixedly connected with a toothed disc 18, and the toothed disc 18 is meshed with a rack 19. The rack 19 is fixedly connected to the sliding track 9, and the rack 19 is arranged along the length direction of the sliding track 9.

[0121] To further optimize the solution, the lifting components include:

[0122] The second telescopic cylinder 14 is vertically fixed in the sliding track 9 and is located in the middle of the sliding track 9;

[0123] The top plate 24 is horizontally fixed to the extended end of the second telescopic cylinder 14 . Two parallel baffles 25 are fixed to the top surface of the top plate 24 , and the elliptical steel pipe passes between the two baffles 25 .

[0124] Working process:

[0125] One end of the elliptical steel tube passes through the second rotating tube 58 and then into the first rotating tube 22 and is fixedly connected to the fixed head 23 at the end of the first rotating tube 22. The second vertical slide plate 70 is driven to move up and down by screwing the fourth threaded rod 73, and the extrusion block 74 is driven to move up and down, so that the middle of the arc groove of the extrusion block 74 is flush with the middle of the quasi-elliptical steel tube. After loosening the bolt, the fifth threaded rod 81 is screwed to adjust the position of the second fixed mounting block 71 until the extrusion block 74 is in sliding contact with the outer side wall of the elliptical steel tube, and the second fixed mounting block 71 is fixed. The first welding electrode 69 is driven to move by the fourth telescopic cylinder 67, so that the first welding electrode 69 is in contact with the elliptical steel tube.

[0126] The upper and lower positions of the second shaft seat 48 are adjusted by rotating the first threaded block 53, and then the upper and lower positions of the auxiliary extrusion plate 49 are adjusted until the center of the auxiliary extrusion plate 49 is flush with the center of the elliptical steel pipe. The sliding mounting plate 39 is driven by the first telescopic cylinder 6 to slide in the first mounting seat 7 until the auxiliary extrusion plate 49 drives the side of the steel belt to be squeezed on the outer wall of the elliptical steel pipe. The second threaded rod 54 is rotated to adjust the action position of the second fixing block 55. After the adjustment is completed, it is fixed. The second welding electrode 47 is driven by the third telescopic cylinder 46 to extend and contact the outer wall of the elliptical steel pipe. The adjustment is completed.

[0127] First, one end of the steel belt is welded to the outer wall of the elliptical steel pipe, and then the first motor 12 drives the first reducer 13, and the first reducer 13 drives the first rotating tube 22 to rotate on the first shaft seat 21 through belt transmission, thereby driving the elliptical steel pipe to rotate, and at the same time the second motor 15 drives the second reducer 16, and the second reducer 16 drives the rotating shaft to rotate through the first bevel gear 17 and the second bevel gear 20 that mesh with each other, and the rotating shaft drives the toothed disc 18 to rotate, thereby driving the sliding plate 11 to move along the length direction of the sliding track 9, dragging the elliptical steel pipe to move, and the drag chain groove 10 is used to place the drag chain, and the device is placed in the drag chain. At the same time, the third motor 28 drives the third reducer 29 to move, the third reducer 29 drives the first rotating shaft 32 to rotate, the first rotating shaft 32 drives the two first eccentric wheels 33 to rotate, and then drives the connecting block 34 to reciprocate through the two first rollers 36, wherein the movement directions of the two connecting blocks 34 are arranged in opposite directions, and the connecting block 34 drives the second mounting seat 5 and the first mounting seat 7 to move through the two L-shaped transmission members 31, so that the elliptical steel pipe keeps in contact with the steel belt under the premise of keeping the linear movement, and the elliptical steel pipe and the steel belt are welded by the first welding electrode 69 and the second welding electrode 47 synchronously;

[0128] When the length of the oval steel pipe is too large and the middle position of the oval steel pipe sinks, the second telescopic cylinder 14 is started, and the second telescopic cylinder 14 drives the top plate 24 to move up to lift the oval steel pipe. The two baffles 25 are used to limit the oval steel pipe.

[0129] The dragging and traction mechanism can also be used in conjunction with other welding equipment.

[0130] Example 2

[0131] The difference from the first embodiment is that in this embodiment, the first welding mechanism and the second welding mechanism are both fixedly mounted on the fixing frame 38 .

[0132] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply 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 understood as a limitation on the present invention.

[0133] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A welding device for welding finned tubes of elliptical steel tubes, characterized in that: include: A reciprocating mechanism is arranged on the bottom surface of the workbench (1), and both movable ends of the reciprocating mechanism extend out of the top surface of the workbench (1). A plurality of legs (27) are fixedly connected below the workbench (1) for supporting the workbench (1); A third auxiliary structure is arranged on the top surface of the workbench (1), the elliptical steel pipe is slidably connected in the third auxiliary structure, and the third auxiliary structure rotates with the elliptical steel pipe; A first auxiliary structure, arranged on the top surface of the workbench (1) and fixedly connected to a movable end of the reciprocating mechanism; a second auxiliary mechanism, arranged on the top surface of the workbench (1) and fixedly connected to the other movable end of the reciprocating mechanism, the second auxiliary mechanism being arranged corresponding to the first auxiliary structure, and the second auxiliary mechanism and the first auxiliary structure being used to keep the elliptical steel pipe stable during the welding process; A first welding mechanism is arranged on the top surface of the workbench (1), a first welding electrode (69) of the first welding mechanism is arranged corresponding to the elliptical steel pipe, and an up and down reciprocating component is arranged in the first welding mechanism; A second welding mechanism is arranged on the second auxiliary mechanism, wherein a second welding electrode (47) of the second welding mechanism is arranged corresponding to the elliptical steel pipe; A dragging and traction mechanism is arranged on one side of the workbench (1), and a lifting component is arranged in the middle of the dragging and traction mechanism.

2. The welding equipment for welding finned tubes with elliptical steel tubes according to claim 1 is characterized in that: The reciprocating mechanism comprises: A third reducer (29) is fixedly connected to the bottom surface of the workbench (1); the input shaft of the third reducer (29) is coaxially fixedly connected to the output shaft of the third motor (28); and the third motor (28) is fixedly connected to the bottom surface of the workbench (1); A first rotating shaft (32) is rotatably connected to the bottom surface of the workbench (1), one end of the first rotating shaft (32) is coaxially fixedly connected to the output shaft of the third reducer (29), two first eccentric wheels (33) are fixedly connected to the first rotating shaft (32), the two first eccentric wheels (33) are eccentrically arranged between each other, and the two first eccentric wheels (33) and the first rotating shaft (32) are eccentrically arranged between each other; Two connecting blocks (34), each of which is provided with a first mounting groove (35), both inner side walls of the first mounting groove (35) being rotatably connected with first rollers (36), the two first eccentric wheels (33) being respectively located in the two first mounting grooves (35), and the first rollers (36) being in rolling contact with the first eccentric wheels (33); Two L-shaped transmission members (31) are respectively fixed to the two connecting blocks (34), the two L-shaped transmission members (31) are away from each other, one end of the L-shaped transmission member (31) away from the connecting block (34) passes through the through slot (30) and passes out of the top surface of the workbench (1), and the two through slots (30) are both provided on the workbench (1); A first mounting seat (7) is arranged on the top surface of the workbench (1); a first sliding block (8) is fixedly connected to the bottom surface of the first mounting seat (7); the first sliding block (8) is slidably connected to a first slide rail (3); the first slide rail (3) is fixedly connected to the top surface of the workbench (1); and the first mounting seat (7) is fixedly connected to one of the L-shaped transmission members (31); A second mounting seat (5) is arranged on the top surface of the workbench (1); a second slider (26) is fixedly connected to the bottom surface of the second mounting seat (5); the second slider (26) is slidably connected to a second slide rail (4); the second slide rail (4) is fixedly connected to the top surface of the workbench (1); and the second mounting seat (5) is fixedly connected to another L-shaped transmission member (31).

3. The welding equipment for welding finned tubes with elliptical steel tubes according to claim 2 is characterized in that: The first auxiliary structure comprises: A second fixed mounting block (71) fixedly mounted on the top surface of the first mounting seat (7); A second vertical slide plate (70) is slidably connected to a side of the second fixed mounting block (71) close to the oval steel pipe; a fourth threaded rod (73) arranged vertically, the bottom end of the fourth threaded rod (73) being rotatably connected to the second vertical slide plate (70), the fourth threaded rod (73) being threadedly connected in a fourth threaded block (72), the fourth threaded block (72) being fixedly connected to the top end of the second fixed mounting block (71), and the top end of the fourth threaded rod (73) passing through the fourth threaded block (72); An extrusion block (74) is fixedly connected to a side of the second vertical slide plate (70) facing the oval steel pipe, and an arc groove is formed at one end of the extrusion block (74) close to the oval steel pipe; a fifth threaded block (80) fixedly connected to the first mounting seat (7); a fifth threaded rod (81) being threadedly connected to the fifth threaded block (80); both ends of the fifth threaded rod (81) passing through the fifth threaded block (80); and one end of the fifth threaded rod (81) being rotatably connected to the second fixed mounting block (71); A first sliding groove is provided on the bottom surface of the second fixed installation block (71), a bolt passes through the first sliding groove and is fixedly connected to the first installation seat (7), and the second fixed installation block (71) can be moved along the length direction of the first sliding groove by loosening the bolt.

4. The welding equipment for welding finned tubes with elliptical steel tubes according to claim 3 is characterized in that: The second auxiliary mechanism comprises: A sliding mounting plate (39) slidably connected in a sliding groove (37), wherein the sliding groove (37) is provided on the top surface of the second mounting seat (5); A first fixed mounting block (40) is fixedly connected to the top surface of the sliding mounting plate (39), wherein the end of the first fixed mounting block (40) away from the elliptical steel pipe is fixedly connected to the extended end of the first telescopic cylinder (6), and the power end of the first telescopic cylinder (6) is fixedly connected to the second mounting seat (5); A first vertical slide plate (51) is slidably connected to a side of the first fixed installation block (40) close to the elliptical steel pipe, the top end of the first vertical slide plate (51) is rotatably connected to a first threaded rod (52), the first threaded rod (52) is vertically threadedly connected to a first threaded block (53), the top end of the first threaded rod (52) passes through the first threaded block (53), and the first threaded block (53) is fixedly connected to the top end of the first fixed installation block (40); A first fixing block (41) is fixedly connected to the top end of the first fixing mounting block (40), a first fixing rod (42) is arranged on the first fixing block (41), one end of the first fixing rod (42) passes through the first fixing block (41) and is fixedly connected to a guide groove (50), and the guide groove (50) is used to guide the steel belt; The second shaft seat (48) is fixedly connected to the side of the first vertical slide plate (51) close to the elliptical steel pipe. The second shaft seat (48) is rotatably connected with an auxiliary extrusion plate (49). The auxiliary extrusion plate (49) is arranged corresponding to the extrusion block (74). The extrusion block (74) and the auxiliary extrusion plate (49) are respectively located on the opposite sides of the elliptical steel pipe. A steel belt groove is opened on the auxiliary extrusion plate (49). The steel belt is slidably connected in the steel belt groove. One side edge of the steel belt extends out of the steel belt groove and abuts against the outer wall of the elliptical steel pipe.

5. The welding equipment for welding finned tubes with elliptical steel tubes according to claim 1, characterized in that: The third assistance includes: A mounting frame (56) fixedly connected to the top surface of the workbench (1); A turntable (57) rotatably connected to the mounting frame (56); The second rotating tube (58) is coaxially fixed to the rotating disk (57), and the second rotating tube (58) is adapted to the elliptical steel tube.

6. The welding equipment for welding finned tubes with elliptical steel tubes according to claim 1, characterized in that: The first welding mechanism comprises: A gantry (59) is fixedly connected to the top surface of the workbench (1), and the up and down reciprocating assembly is arranged on the gantry (59); A third fixed block (63) is fixedly mounted on the movable end of the upper and lower reciprocating assembly. The third fixed block (63) is provided with a plurality of second sliding grooves arranged horizontally. Bolts pass through the second sliding grooves and are threadedly connected to the movable end of the upper and lower reciprocating assembly. A third threaded rod (64) arranged horizontally is rotatably connected to one side of the third fixed block (63). The third threaded rod (64) is threadedly connected to a third threaded block (65). The third threaded block (65) is fixedly connected to the movable end of the upper and lower reciprocating assembly. The position of the third fixed block (63) can be adjusted by loosening the bolts and rotating the third threaded rod (64). A second mounting plate (66) is fixedly connected to the third fixed block (63); a second connecting frame (68) is fixedly connected to the second mounting plate (66); a fourth telescopic cylinder (67) is fixedly connected to the top of the second connecting frame (68); an extended end of the fourth telescopic cylinder (67) extends into the second connecting frame (68) and is fixedly connected to a fourth slider; the fourth slider is slidably connected in the second connecting frame (68); the fourth slider extends out of the second connecting frame (68) and is fixedly connected to the first welding electrode (69).

7. The welding equipment for welding finned tubes with elliptical steel tubes according to claim 2, characterized in that: The second welding mechanism comprises: A fixing frame (38) fixedly connected to the second mounting seat (5); The second fixing block (55) is fixedly mounted on the fixing frame (38) by means of bolts. The second fixing block (55) is provided with a plurality of third sliding grooves arranged horizontally. The bolts pass through the third sliding grooves and are threadedly connected to the fixing frame (38). One end of the second fixing block (55) is rotatably connected to a second threaded rod (54) arranged horizontally. The second threaded rod (54) is threadedly connected to the second threaded block (44). The second threaded block (44) is fixedly connected to the fixing frame (38). The position of the second fixing block (55) can be adjusted by loosening the bolts. The first mounting plate (43) is fixedly connected to the second fixed block (55); the first mounting plate (43) is fixedly connected to a first connecting frame (45); one end of the first connecting frame (45) is fixedly connected to a third telescopic cylinder (46); the output shaft of the third telescopic cylinder (46) extends into the first connecting frame (45) and is fixedly connected to a fifth sliding block; the fifth sliding block is slidably connected to the first connecting frame (45); and the fifth sliding block is fixedly connected to the second welding electrode (47).

8. The welding equipment for welding finned tubes with elliptical steel tubes according to claim 6, characterized in that: The up and down reciprocating assembly comprises: A third mounting seat (62) is arranged on a side of the gantry (59) close to the elliptical steel pipe, a third sliding block (61) is fixedly connected to the third mounting seat (62), the third sliding block (61) is slidably connected to a third slide rail (60), the third slide rail (60) is vertically fixed to the gantry (59), and the third threaded block (65) and the third fixed block (63) are both arranged on the third mounting seat (62); A roller mounting seat (78) is fixedly connected to a side of the third mounting seat (62) away from the third fixing block (63), and two second rollers (79) are mounted on the roller mounting seat (78), and the two second rollers (79) are arranged correspondingly up and down; A fourth motor (75) is fixedly connected to the gantry (59); a second rotating shaft (76) is coaxially fixedly connected to the output shaft of the fourth motor (75); the second rotating shaft (76) is horizontally rotatably connected to the gantry (59); a second eccentric wheel (77) is fixedly connected to the second rotating shaft (76); the second eccentric wheel (77) is eccentrically arranged with respect to the second rotating shaft (76); the second eccentric wheel (77) is located between the two second rollers (79) and is in rolling contact with the two second rollers (79).

9. The welding equipment for welding finned tubes with elliptical steel tubes according to claim 5, characterized in that: The dragging and traction mechanism comprises: A sliding track (9) is arranged on one side of the workbench (1), the sliding track (9) is arranged along the length direction of the elliptical steel pipe, and a drag chain groove (10) for placing a drag chain is arranged on the sliding track (9); A sliding plate (11) slidably connected to the sliding track (9); A first motor (12) is fixedly connected to the top surface of the sliding plate (11); the output shaft of the first motor (12) is coaxially fixedly connected to the input shaft of the first reducer (13); the first reducer (13) is fixedly connected to the sliding plate (11); a first shaft seat (21) is fixedly connected to the top surface of the sliding plate (11); a first rotating tube (22) is rotatably connected to the first shaft seat (21); a fixed head (23) is fixedly connected to one end of the first rotating tube (22); the first rotating tube (22) and the second rotating tube (58) are coaxially arranged; the fixed head (23) is far away from the second rotating tube (58); the first rotating tube (22) and the output shaft of the first reducer (13) are connected via a synchronous belt transmission; A second motor (15) is fixedly connected to the top surface of the sliding plate (11); an input shaft of a second reducer (16) is coaxially fixedly connected to the output shaft of the second motor (15); the second reducer (16) is fixedly connected to the sliding plate (11); a first bevel gear (17) is fixedly connected to the output shaft of the second reducer (16); the first bevel gear (17) is meshed with a second bevel gear (20); the second bevel gear (20) is coaxially fixedly connected to a vertically arranged rotating shaft; the rotating shaft is rotatably connected to the sliding plate (11); the bottom end of the rotating shaft passes through the sliding plate (11) and is coaxially fixedly connected to a toothed disc (18); the toothed disc (18) is meshed with a rack (19); the rack (19) is fixedly connected to the sliding track (9); and the rack (19) is arranged along the length direction of the sliding track (9).

10. The welding equipment for welding finned tubes to elliptical steel tubes according to claim 9, characterized in that: The lifting assembly comprises: A second telescopic cylinder (14) is vertically fixed in the sliding track (9) and is located in the middle of the sliding track (9); The top plate (24) is horizontally fixed to the extended end of the second telescopic cylinder (14), and two parallel baffles (25) are fixed to the top surface of the top plate (24), and the elliptical steel pipe passes between the two baffles (25).

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