High-frequency welding device for oval steel finned tube

Abstract

The utility model belongs to the technical field of radiating tube manufacturing, and particularly relates to a high-frequency welding device for an oval steel 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, the oval steel pipe is driven by external equipment to move and rotate at the same time, and the steel belt is attached to the outer side wall of the oval steel pipe during welding through cooperation of a first auxiliary structure and a second auxiliary structure; meanwhile, the up-down reciprocating assembly enables the first welding electrode to constantly keep contact with the oval steel pipe, and the second auxiliary mechanism enables the second welding electrode to constantly keep contact with the oval steel pipe, so that welding work is automatically completed, convenience and rapidness are achieved, and the production efficiency is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat dissipation tube production, in particular to a high-frequency welding device for an elliptical steel tube fin tube. Background Art

[0002] In order to improve the heat exchange efficiency, fin strips are usually wrapped around the outer wall of a steel pipe to obtain a finned tube, thereby increasing the heat dissipation area of ​​the base tube and further achieving the purpose of improving the heat exchange efficiency of the base tube.

[0003] Oval cold-wound finned tubes are very popular among users because of their characteristics of small resistance on the windward side, large heat contact surface, and small eddy zone on the leeward side. However, there is currently no equipment specifically used for welding finned tubes to oval steel tubes. In addition, when using simple auxiliary tooling, the fin strip and the oval steel tube often do not fit tightly, resulting in welding leaks. Therefore, a high-frequency welding device for oval steel tube finned tubes is needed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide an elliptical steel tube fin tube high frequency welding device to solve the above problems.

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

[0006] High frequency welding device for elliptical steel tube and fin tube, including:

[0007] A reciprocating mechanism is provided on the bottom surface of the workbench, wherein both movable ends of the reciprocating mechanism extend out of the top surface of the workbench, and a plurality of legs are fixedly connected to the bottom of the workbench for supporting the workbench;

[0008] A third auxiliary structure is provided on the top surface of the workbench, the elliptical steel pipe is slidably connected to 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, disposed on the top surface of the workbench and fixedly connected to the other movable end of the reciprocating mechanism, the second auxiliary mechanism being disposed corresponding to the first auxiliary structure, and the second auxiliary mechanism and the first auxiliary structure being used to stabilize the elliptical steel pipe during the welding process;

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

[0012] a second welding mechanism, disposed on the second auxiliary mechanism, wherein a second welding electrode of the second welding mechanism is disposed 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 includes:

[0015] a third reducer fixedly connected to the bottom surface of the workbench, wherein 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 being coaxially fixedly connected to the output shaft of the third reducer, two first eccentric wheels being fixedly connected to the first rotating shaft, the two first eccentric wheels being eccentrically arranged between each other, and the two first eccentric wheels being eccentrically arranged between the first rotating shaft;

[0017] Two connecting blocks, each having a first mounting groove formed thereon, first rollers being rotatably connected to both inner side walls of the first mounting groove, the two first eccentric wheels being respectively located in the two first mounting grooves, the first rollers being 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 separated 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, disposed on the top surface of the workbench, a first slider being fixedly connected to the bottom surface of the first mounting seat, the first slider being slidably connected to a first slide rail, the first slide rail being fixedly connected to the top surface of the workbench, and the first mounting seat being 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 to the 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 the other L-shaped transmission member.

[0021] Preferably, the first auxiliary structure includes:

[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, vertically arranged, the bottom end of the fourth threaded rod being rotatably connected to the second vertical slide, the fourth threaded rod being threadedly connected to a fourth threaded block, the fourth threaded block being fixed to a 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 the side of the second vertical slide plate facing the oval steel pipe, and an arc groove is formed on the 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 mounting block, and a bolt passes through the first sliding groove and is fixedly connected to the first mounting seat. By loosening the bolt, the second fixed mounting block can be moved along the length direction of the first sliding groove.

[0028] Preferably, the second auxiliary mechanism includes:

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

[0030] a first fixed mounting block 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 tube 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 is slidably connected to a side of the first fixed mounting block close to the elliptical steel tube, a first threaded rod is rotatably connected to the top of the first vertical slide, the first threaded rod is vertically threadedly connected to the first threaded block, the top of the first threaded rod passes through the first threaded block, and the first threaded block is fixed to the top of the first fixed mounting block;

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

[0033] The second shaft seat is fixedly connected to the side of the first vertical slide close to the elliptical steel pipe. The second shaft seat is rotatably connected to an auxiliary extrusion plate. The auxiliary extrusion plate is arranged corresponding to the extrusion block. The extrusion block and the auxiliary extrusion plate are respectively located on the opposite sides of the elliptical steel pipe. A steel belt groove is opened on the auxiliary extrusion plate. 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.

[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 adapted to the elliptical steel tube.

[0038] Preferably, the first welding mechanism includes:

[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, the third fixed block 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, one side of the third fixed block is rotatably connected to a horizontally arranged third threaded rod, the third threaded rod is threadedly connected to the third threaded block, the third threaded block is fixed 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 fixed on the third fixed block, the second mounting plate is fixed with a second connecting frame, the top of the second connecting frame is fixed with a fourth telescopic cylinder, the extended end of the fourth telescopic cylinder extends into the second connecting frame and is fixed with a fourth slider, the fourth slider is slidably connected in the second connecting frame, 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 includes:

[0043] a fixing frame, fixedly connected to the second mounting base;

[0044] The second fixing block is fixedly mounted on the fixing frame by bolts, the second fixing block 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, one end of the second fixing block is rotatably connected to a second horizontally arranged threaded rod, the second threaded rod is threadedly connected to the second threaded block, and the second threaded block is fixed 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 includes:

[0047] a third mounting seat, arranged on a side of the gantry frame close to the elliptical steel tube, a third slider being fixedly connected to the third mounting seat, the third slider being slidably connected to a third slide rail, the third slide rail being vertically fixed to the gantry frame, the third threaded block and the third fixing block being 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 in an upper and lower direction;

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

[0050] Compared with the prior art, the present invention has the following advantages and technical effects:

[0051] When the utility model is working, the reciprocating mechanism drives the first auxiliary structure and the second auxiliary mechanism to move back and forth 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, avoiding the problem of welding leakage caused by the loose fit between the steel strip and the elliptical steel pipe. The steel pipe is passed through the third auxiliary structure, and the elliptical steel pipe is driven to move and rotate at the same time by external equipment. 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, thereby automatically completing the welding work. Except for loading and unloading, no human participation is required, which is convenient, fast and has high production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work:

[0053] Figure 1 This is a schematic diagram of the overall structure of the workbench part of the utility model;

[0054] Figure 2 This is a structural diagram of the workbench in the utility model;

[0055] Figure 3 This is a schematic structural diagram of the reciprocating mechanism in the present invention;

[0056] Figure 4 This is a schematic structural diagram of the first welding mechanism in the present utility model;

[0057] Figure 5 This is a back view of the first welding mechanism in the present invention;

[0058] Figure 6 This is a schematic structural diagram of the second welding mechanism in the present utility model;

[0059] 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; 26. second slider; 27. support leg; 28. third motor; 29. ​​third reducer; 30. through slot; 31. L-shaped transmission member; 32. first rotating shaft; 33. first eccentric wheel; 34. connecting block; 35. first mounting slot; 36. first roller; 37. slide slot; 38. fixed frame; 39. sliding mounting plate; 40. first fixed mounting block; 41. first fixed block; 42. first fixed rod; 43. first mounting vertical 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 slot; 51. First vertical slide; 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. Third fixed block; 64. Third threaded rod; 65. Third threaded block; 66. Second mounting plate; 67. Fourth telescopic cylinder; 68. Second connecting frame; 69. First welding electrode; 70. Second vertical slide; 71. Second fixed mounting block; 72. Fourth threaded block; 73. Fourth threaded rod; 74. Extrusion block; 75. Fourth motor; 76. Second rotating shaft; 77. Second eccentric wheel; 78. Roller mounting seat; 79. Second roller; 80. Fifth threaded block; 81. Fifth threaded rod. DETAILED DESCRIPTION

[0060] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0061] 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 implementation methods.

[0062] Reference Figures 1 to 6 The utility model discloses a high-frequency welding device for an elliptical steel tube and a finned tube, comprising:

[0063] A reciprocating mechanism is provided on the bottom surface of the workbench 1, with both movable ends of the reciprocating mechanism extending 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;

[0064] 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 .

[0065] A third auxiliary structure is provided on the top surface of the workbench 1, the elliptical steel tube is slidably connected in the third auxiliary structure, and the third auxiliary structure rotates with the elliptical steel tube;

[0066] A first auxiliary structure is provided on the top surface of the workbench 1 and is fixedly connected to one movable end of the reciprocating mechanism;

[0067] A second auxiliary mechanism is provided 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 provided 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;

[0068] The first welding mechanism is provided on the top surface of the workbench 1. The first welding electrode 69 of the first welding mechanism is provided corresponding to the elliptical steel pipe. The first welding mechanism is provided with an up and down reciprocating assembly.

[0069] A second welding mechanism is provided on the second auxiliary mechanism, and a second welding electrode 47 of the second welding mechanism is provided corresponding to the oval steel pipe;

[0070] 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.

[0071] Further optimization scheme, the reciprocating mechanism includes:

[0072] The third reducer 29 is fixed to the bottom surface of the workbench 1. The input shaft of the third reducer 29 is coaxially fixed to the output shaft of the third motor 28. The third motor 28 is fixed to the bottom surface of the workbench 1.

[0073] 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 are eccentrically arranged between the first rotating shaft 32.

[0074] Two connecting blocks 34 are provided with first mounting grooves 35. First rollers 36 are rotatably connected to both inner side walls of the first mounting grooves 35. The two first eccentric wheels 33 are respectively located in the two first mounting grooves 35. The first rollers 36 are in rolling contact with the first eccentric wheels 33.

[0075] Two L-shaped transmission members 31 are respectively fixed to the two connecting blocks 34. The two L-shaped transmission members 31 are separated 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 out of the top surface of the workbench 1. Both through slots 30 are formed on the workbench 1.

[0076] A first mounting seat 7 is provided 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. The first mounting seat 7 is fixedly connected to one of the L-shaped transmission members 31.

[0077] 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 to the 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.

[0078] Further optimization scheme, the first auxiliary structure includes:

[0079] A second fixed mounting block 71 is fixedly mounted on the top surface of the first mounting seat 7;

[0080] 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;

[0081] A fourth threaded rod 73 is vertically arranged, with the bottom end of the fourth threaded rod 73 being rotatably connected to the second vertical slide 70. The fourth threaded rod 73 is threadedly connected to the fourth threaded block 72. The fourth threaded block 72 is fixed to the top of the second fixed mounting block 71. The top end of the fourth threaded rod 73 passes through the fourth threaded block 72.

[0082] The extrusion block 74 is fixedly connected to the side of the second vertical slide 70 facing the oval steel tube. The end of the extrusion block 74 close to the oval steel tube is provided with an arc groove.

[0083] A fifth threaded block 80 is fixedly connected to the first mounting base 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.

[0084] A first sliding groove is defined 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 . Loosening the bolt allows the second fixed mounting block 71 to move along the length direction of the first sliding groove.

[0085] To further optimize the solution, the second auxiliary mechanism includes:

[0086] 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;

[0087] A first fixed mounting block 40 is fixedly connected to the top surface of the sliding mounting plate 39. The 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 base 5.

[0088] A first vertical slide 51 is slidably connected to a side of the first fixed mounting block 40 close to the elliptical steel tube. A first threaded rod 52 is rotatably connected to the top of the first vertical slide 51. The first threaded rod 52 is vertically threadedly connected to a 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 mounting block 40.

[0089] A first fixing block 41 is fixedly connected to the top of the first fixed 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.

[0090] The second shaft seat 48 is fixedly connected to the side of the first vertical slide 51 close to the elliptical steel pipe. The 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.

[0091] To further optimize the solution, the third auxiliary includes:

[0092] A mounting frame 56 is fixed to the top surface of the workbench 1;

[0093] A turntable 57 is rotatably connected to the mounting frame 56;

[0094] 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.

[0095] Further optimizing the solution, the first welding mechanism includes:

[0096] The gantry 59 is fixed to the top surface of the workbench 1, and the up and down reciprocating assembly is set on the gantry 59;

[0097] The third fixed block 63 is fixedly mounted on the movable end of the upper and lower reciprocating components. 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 components. 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 fixed to the movable end of the upper and lower reciprocating components. The position of the third fixed block 63 can be adjusted by loosening the bolts and rotating the third threaded rod 64.

[0098] The second mounting plate 66 is fixed to the third fixed block 63. The second mounting plate 66 is fixed to a second connecting frame 68. The top of the second connecting frame 68 is fixed to a fourth telescopic cylinder 67. The extended end of the fourth telescopic cylinder 67 extends into the second connecting frame 68 and is fixed 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.

[0099] Further optimizing the solution, the second welding mechanism includes:

[0100] The fixing frame 38 is fixedly connected to the second mounting base 5;

[0101] The second fixing block 55 is fixed to the fixing frame 38 by bolts. The second fixing block 55 is provided with a plurality of horizontally arranged third sliding grooves. 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 horizontally arranged second threaded rod 54. The second threaded rod 54 is threadedly connected to the second threaded block 44, which is fixed to the fixing frame 38. The position of the second fixing block 55 can be adjusted by loosening the bolts.

[0102] The first mounting plate 43 is fixed on the second fixed block 55. The first connecting frame 45 is fixed on the first mounting plate 43. One end of the first connecting frame 45 is fixed to the third telescopic cylinder 46. The output shaft of the third telescopic cylinder 46 extends into the first connecting frame 45 and is fixed to the fifth slider. The fifth slider is slidably connected in the first connecting frame 45 and is fixed to the second welding electrode 47.

[0103] To further optimize the solution, the up and down reciprocating components include:

[0104] A third mounting seat 62 is provided on a side of the gantry 59 close to the elliptical steel tube. 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 provided on the third mounting seat 62.

[0105] The roller mounting base 78 is fixedly connected to the side of the third mounting base 62 away from the third fixing block 63. The roller mounting base 78 is mounted with two second rollers 79. The two second rollers 79 are arranged in a corresponding manner up and down.

[0106] 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.

[0107] Working process:

[0108] One end of the elliptical steel pipe passes through the second rotating pipe 58 and is fixed to the external rotating traction device. By screwing the fourth threaded rod 73, the second vertical slide 70 is driven to move up and down, 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 pipe. 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 slides in contact with the outer wall of the elliptical steel pipe. The second fixed mounting block 71 is fixed, and the first welding electrode 69 is driven to move by the fourth telescopic cylinder 67 so that the first welding electrode 69 contacts the elliptical steel pipe.

[0109] The upper and lower positions of the second shaft seat 48 are adjusted by rotating the first threaded block 53, and the upper and lower positions of the auxiliary extrusion plate 49 are then 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, and the adjustment is completed.

[0110] First, one end of the steel belt is welded to the outer wall of the elliptical steel pipe, and then the elliptical steel pipe is pulled by an external rotating traction device to move along the length direction while rotating. At the same time, the third motor 28 drives the third reducer 29 to move, and 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 the two first rollers 36 drive the connecting block 34 to move back and forth, wherein the two connecting blocks 34 are set in opposite directions of movement, and the connecting block 34 drives the second mounting seat 5 and the first mounting seat 7 to move through two L-shaped transmission parts 31, so that the elliptical steel pipe keeps in contact with the steel belt under the premise of maintaining linear movement, and the elliptical steel pipe and the steel belt are welded synchronously by the first welding electrode 69 and the second welding electrode 47, and the steel belt is spirally welded to the outer wall of the elliptical steel pipe.

[0111] Example 2

[0112] 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 .

[0113] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship 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. Therefore, they should not be understood as limitations on the present invention.

[0114] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. Elliptical steel tube fin tube high frequency welding device, characterized in that, include: A reciprocating mechanism is provided on the bottom surface of the workbench (1), both movable ends of the reciprocating mechanism extend out of the top surface of the workbench (1), and a plurality of legs (27) are fixedly connected below the workbench (1) for supporting the workbench (1); A third auxiliary structure is provided on the top surface of the workbench (1), the elliptical steel pipe is slidably connected to the third auxiliary structure, and the third auxiliary structure rotates along with the elliptical steel pipe; A first auxiliary structure is provided on the top surface of the workbench (1) and is 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 provided on the top surface of the workbench (1), a first welding electrode (69) of the first welding mechanism is provided corresponding to the elliptical steel pipe, and an upper and lower reciprocating assembly is provided in the first welding mechanism; a second welding mechanism, which 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 assembly is arranged in the middle of the dragging and traction mechanism.

2. The high-frequency welding device for elliptical steel tube and finned tube according to claim 1, characterized in that: The reciprocating mechanism comprises: A third reducer (29) is fixedly connected to the bottom surface of the workbench (1); an input shaft of the third reducer (29) is coaxially fixedly connected to an output shaft of a 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 fixed to the output shaft of the third reducer (29), two first eccentric wheels (33) are fixed 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), first rollers (36) being rotatably connected to both inner side walls of the first mounting groove (35), 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 wheel (33); Two L-shaped transmission members (31) are respectively fixed to the two connecting blocks (34), the two L-shaped transmission members (31) are separated 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 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 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); 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 high-frequency welding device for elliptical steel tube and fin tube according to claim 2, characterized in that: The first auxiliary structure includes: 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 to the fourth threaded block (72), the fourth threaded block (72) being fixed 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 elliptical steel tube, and an arc-shaped groove is formed on an end of the extrusion block (74) close to the elliptical steel tube; 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 mounting block (71), a bolt passes through the first sliding groove and is fixedly connected to the first mounting seat (7), and the second fixed mounting block (71) can be moved along the length direction of the first sliding groove by loosening the bolt.

4. The high-frequency welding device for elliptical steel tube and fin tube according to claim 3, characterized in that: The second auxiliary mechanism includes: A sliding mounting plate (39) is slidably connected in a slide groove (37), wherein the slide 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 tube 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 mounting block (40) close to the elliptical steel tube, 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 fixed to the top end of the first fixed mounting block (40); A first fixing block (41) is fixedly connected to the top of the first fixed mounting block (40), and 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), 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 to an auxiliary extrusion disc (49). The auxiliary extrusion disc (49) is arranged corresponding to the extrusion block (74). The extrusion block (74) and the auxiliary extrusion disc (49) are respectively located on two opposite sides of the elliptical steel pipe. A steel belt groove is opened on the auxiliary extrusion disc (49). The steel belt is slidably connected in the steel belt groove. One side of the steel belt extends out of the steel belt groove and abuts against the outer wall of the elliptical steel pipe.

5. The high-frequency welding device for elliptical steel tube and fin tube 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 on the rotating disk (57), and the second rotating tube (58) is adapted to the elliptical steel tube.

6. The high-frequency welding device for elliptical steel tube and fin tube 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. A plurality of horizontally arranged second sliding grooves are provided on the third fixed block (63). 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 rotating the third threaded rod (64) by loosening the bolts. The second mounting plate (66) is fixedly connected to the third fixed block (63); the second mounting plate (66) is fixedly connected to a second connecting frame (68); the top end of the second connecting frame (68) is fixedly connected to a fourth telescopic cylinder (67); 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); the fourth slider extends out of the second connecting frame (68) and is fixedly connected to the first welding electrode (69).

7. The high-frequency welding device for elliptical steel tubes and finned tubes according to claim 2, characterized in that: The second welding mechanism includes: 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 slider; the fifth slider is slidably connected to the first connecting frame (45); and the fifth slider is fixedly connected to the second welding electrode (47).

8. The high-frequency welding device for elliptical steel tubes and finned 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 tube, a third slider (61) is fixed 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), 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 correspondingly arranged 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).

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