Rare earth steel structure welding device and method

Abstract

The invention relates to the technical field of rare earth steel welding, in particular to a rare earth steel structure welding device and method. Comprising a plurality of supporting units used for bearing the rare earth steel structures, a gas shield welding unit is arranged between every two adjacent supporting units, and the gas shield welding units are used for conducting backing welding on weld joint areas, fixed to the supporting units, of the rare earth steel structures; first transverse moving mechanisms are arranged on the two sides of the supporting unit, vertical moving mechanisms are arranged on the two first transverse moving mechanisms correspondingly, a moving cross beam plate is arranged between the vertical moving mechanisms, the submerged-arc welding unit and the cleaning unit are connected with the moving cross beam plate, the submerged-arc welding unit is used for conducting filling welding on the backing welding portion of the rare earth steel structure, and the cleaning unit is used for cleaning the backing welding portion of the rare earth steel structure. The cleaning unit is used for cleaning weld zone base metal of the rare earth steel structure; the invention aims to solve the technical problem of how to carry out submerged-arc welding filling welding after gas shielded welding bottoming of rare earth steel.

Description

Technical Field

[0001] The invention relates to the technical field of rare earth steel welding, and in particular to a rare earth steel structure welding device and method. Background Art

[0002] Rare earth steel is a low-alloy high-strength steel, which is made by adding rare earth and other alloy elements to 16Mn steel. The addition of vanadium can increase the strength of the steel, while refining the grains and reducing the overheating tendency of the steel. However, low-alloy steel welding has the main characteristics of hot cracks, cold cracks, hardening tendency and strong sensitivity to hydrogen-induced cracks. With the increase of carbon equivalent, the plasticity of the steel decreases sharply, and under the action of high stress, the tendency to produce welding cracks also increases greatly, and there is an obvious hardening tendency during welding. Therefore, when welding rare earth steel, we first use gas shielded welding for base welding to prevent the submerged arc welding current from burning through, and then weld the center of the rare earth steel pipe column weld by submerged arc welding.

[0003] The utility model patent with authorization announcement number CN218362641U discloses a spiral seam submerged arc welding steel pipe welding device, which discloses an automated submerged arc welding device. The above equipment cannot realize automated gas shielded welding for base welding, and then welding by submerged arc welding.

[0004] Therefore, the problem existing in the prior art is: how to realize the submerged arc welding filling welding after the rare earth steel is primed with gas shielded welding. Summary of the invention

[0005] The invention provides a rare earth steel structure welding device and method, aiming to solve the problem of how to perform submerged arc welding filling welding after gas shielded welding of rare earth steel.

[0006] The technical solution used in the present invention is as follows: In the first aspect of the present application, a rare earth steel structure welding device is proposed, comprising a plurality of support units for supporting the rare earth steel structure, a gas shielded welding unit is arranged between adjacent support units, and the gas shielded welding unit is used for performing base welding on the weld area of ​​the rare earth steel structure fixed on the support unit; a first transverse movement mechanism is arranged on both sides of the support unit, a vertical movement mechanism is arranged on each of the two first transverse movement mechanisms, a movable cross beam plate is arranged between the vertical movement mechanisms, a submerged arc welding unit and a cleaning unit are connected to the movable cross beam plate, the submerged arc welding unit is used for performing fill welding on the base welding part of the rare earth steel structure, and the cleaning unit cleans the parent material of the weld area of ​​the rare earth steel structure; a welding adjustment seat is arranged relatively on the lower side of the movable cross beam plate ; A welding displacement motor is fixed on the welding adjustment seat on one side, and the motor shaft of the welding displacement motor extends out of the welding adjustment seat and is connected to one end of the welding adjustment screw, and the other end of the welding adjustment screw is rotatably matched with the welding adjustment seat on the other side through a bearing; two welding adjustment guide shafts are provided between the two welding adjustment seats, and the two welding adjustment guide shafts are respectively located on both sides of the welding adjustment screw; a U-shaped welding movable frame is matched with the welding adjustment screw through a sliding sleeve on the welding adjustment guide shaft, and the welding movable frame is threadedly matched with the welding adjustment screw; the submerged arc welding unit and the cleaning unit are arranged on the welding movable frame; the welding adjustment seat is in a broken line shape, and a first electromagnet is provided at the bottom of the welding adjustment seat; the first electromagnet is used to attract the welding adjustment seat and the support unit into a whole.

[0007] The second aspect of the present application provides a rare earth steel structure welding method, comprising the following steps: Using any of the above-mentioned rare earth steel structure welding devices, the base material of the weld area of ​​the rare earth steel structure is cleaned by the cleaning unit; the base welding of the weld area of ​​the rare earth steel structure is performed by the gas shielded welding unit; and the base welding part of the rare earth steel structure is filled with welding by the submerged arc welding unit.

[0008] The beneficial effects achieved by the present invention are as follows: the cleaning unit first cleans the base material of the weld area of ​​the rare earth steel structure, and then the gas shielded welding unit performs base welding on the weld area of ​​the rare earth steel structure; finally, the submerged arc welding unit performs filling welding on the base welding part of the rare earth steel structure; automated gas shielded welding base welding and submerged arc welding filling welding are realized; at the same time, during welding, the first electromagnet is turned on to attract the welding adjustment seat and the supporting unit into a whole; the jitter of the submerged arc welding unit during welding is reduced, and the welding accuracy and effect are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0010] Figure 2 This is a schematic diagram of the first transverse movement mechanism of the present invention. Figure 1 .

[0011] Figure 3 This is a schematic diagram of the first transverse movement mechanism of the present invention. Figure 2 .

[0012] Figure 4 It is a schematic diagram of the structure of the vertical moving mechanism of the present invention.

[0013] Figure 5 It is a schematic diagram of the structure of the gas shielded welding welding unit of the present invention.

[0014] Figure 6 It is the installation position diagram of the submerged arc welding unit and the cleaning unit of the present invention.

[0015] Figure 7 It is a structural schematic diagram of the welding adjustment seat of the present invention.

[0016] Figure 8 It is a schematic structural diagram of a submerged arc welding unit of the present invention.

[0017] Fig. 9 The cleaning unit structure of the present invention is schematically shown in FIG. Figure 1 .

[0018] Fig.10 The cleaning unit structure of the present invention is schematically shown in FIG. Figure 2 .

[0019] Fig.11 It is a schematic diagram of the cleaning unit action of the present invention.

[0020] Fig.12 The support unit structure of the present invention is schematically shown in FIG. Figure 1 .

[0021] Fig.13 The support unit structure of the present invention is schematically shown in FIG. Figure 2 .

[0022] Fig.14 It is a schematic diagram of the side connection structure of the suspension seat of the present invention.

[0023] Fig.15 It is a schematic diagram of the cross-sectional structure of the support L-plate of the present invention.

[0024] Fig.16 The welding detection mechanism of the present invention is schematically shown in FIG. Figure 1 .

[0025] Fig.17 The welding detection mechanism of the present invention is schematically shown in FIG. Figure 2 .

[0026] In the figure, 1, moving cross beam plate; 2, transverse base; 3, transverse slide plate; 4, transverse slide shaft; 5, transverse motor; 6, driving gear; 7, chain; 8, vertical frame; 9, vertical slide plate; 10, vertical fixed frame; 11, vertical motor; 12, vertical lead screw; 13, second transverse mechanism; 14, gas shielded welding robot arm; 15, gas shielded welding machine; 16, welding adjustment seat; 17, welding displacement motor; 18, welding adjustment lead screw; 19, welding adjustment guide shaft; 20, welding Moving frame; 21, first electromagnet; 22, submerged arc welding push rod; 23, submerged arc welding gun; 24, cleaning push rod; 25, cleaning air pump; 26, blowing chamber; 27, cleaning hose; 28, driving mounting frame; 29, conversion driving motor; 30, ratchet shaft; 31, ratchet gear; 32, rotating plate; 33, rotating ring; 34, ratchet card; 35, clutch shaft; 36, second electromagnet; 37, knocking fixed frame; 38, knocking sliding shaft; 39, knocking plate; 40 , air jet hole; 41, knock spring; 42, bellows; 43, knock ring; 44, swing plate; 45, rope ear; 46, knock rope; 47, support frame; 48, support L plate; 49, sling; 50, hanger; 51, bearing support plate; 52, bearing groove; 53, clamping push rod base plate; 54, clamping cylinder; 55, clamping block; 56, micro-rotation driven wheel; 57, press plate slide groove; 58, active plate slide groove; 59, active plate slide shaft; 60, active wheel cross plate; 6 1. Driving wheel vertical plate; 62. Fine-tuning driving wheel; 63. High-torque motor; 64. Crimping plate slide shaft; 65. Crimping wheel horizontal plate; 66. Crimping wheel vertical plate; 67. Fine-tuning crimping wheel; 68. Crimping plate spring; 69. Support push rod base plate; 70. Support cylinder; 71. Crimping rope channel; 72. Crimping rope; 73. Detection push rod; 74. Detection sealing disk; 75. Sealing airbag; 76. Detection air pump; 77. Sealing air pump; 78. Sealing hose; 79. Detection hose. DETAILED DESCRIPTION

[0027] To facilitate those skilled in the art to understand the present invention, specific implementations of the present invention are described below with reference to the accompanying drawings.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements; for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood through specific circumstances.

[0029] First, the application scenario of this application is introduced: Rare earth steel is a low-alloy high-strength steel that is made by adding rare earth and other alloy elements to 16Mn steel; the addition of vanadium can increase the strength of the steel, while refining the grains and reducing the overheating tendency of the steel. The chemical composition of rare earth steel is as follows:

[0030] The present invention provides a rare earth steel structure welding method, comprising the following steps: Step 1: Clean the base material of the weld area of ​​the rare earth steel structure through the cleaning unit to ensure that there are no external factors that affect the welding quality; Step 2: The gas shielded welding unit performs base welding on the weld area of ​​the rare earth steel structure; Argon / carbon dioxide mixed gas shielded welding is used for base welding, and the mixed gas ratio is Ar:CO 2 =85%:15%; it has high welding efficiency, no slag, good visibility of the molten pool, concentrated heat, narrow welding heat affected zone, small welding deformation, and low hydrogen content in the welded joint; the welding wire is ER55-D2 type with a diameter of Φ1.2mm; the welding current is 140-180A, the voltage is 18-20V, and the speed is 20-22cm / min; Step 3: The submerged arc welding unit performs fill welding on the base welding part of the rare earth steel structure; The submerged arc welding machine of the submerged arc welding unit moves to the top of the base welding part of the rare earth steel structure, extends the welding wire 20-25mm to align with the center of the pipe column weld, and then evenly covers the welding area with flux, with a flux thickness of 30-50mm; the continuously fed welding wire generates an arc between the weldment under the flux layer, and the heat of the arc melts the welding wire, workpiece and flux to form a molten metal pool, isolating them from the air; the submerged arc welding machine moves, and the arc continuously melts the weldment metal, welding wire and flux in front, while the edge behind the molten pool begins to cool and solidify to form a weld, and the liquid slag then condenses to form a hard slag shell.

[0031] like Figure 1 As shown, the second aspect of the present invention proposes a rare earth steel structure welding device, comprising a plurality of support units for supporting the rare earth steel structure, the support units are arranged side by side (four are used as an example in this application, and any number is acceptable), and a gas shielded welding unit is provided between adjacent support units, the gas shielded welding unit is used for performing base welding on the weld area of ​​the rare earth steel structure fixed on the support unit; a first transverse movement mechanism is provided on both sides of the support unit, a vertical movement mechanism is provided on each of the two first transverse movement mechanisms, a movable crossbeam plate 1 is provided between the vertical movement mechanisms, a submerged arc welding unit and a cleaning unit are connected to the movable crossbeam plate 1, the submerged arc welding unit is used for performing fill welding on the base welding part of the rare earth steel structure, and the cleaning unit cleans the parent material of the weld area of ​​the rare earth steel structure.

[0032] When in use, the cleaning unit first cleans the base material of the weld area of ​​the rare earth steel structure, and then the gas shielded welding unit performs base welding on the weld area of ​​the rare earth steel structure; finally, the submerged arc welding unit performs filling welding on the base welding part of the rare earth steel structure, realizing automated gas shielded welding base welding and submerged arc welding filling welding.

[0033] like Figure 2-3 As shown, the first transverse movement mechanism includes a transverse movement base 2 and a transverse movement slide plate 3 which is slidably matched on the transverse movement base 2; the transverse movement base 2 is used to be firmly connected to the ground, and a transverse movement slide shaft 4 is assembled thereon through an axle seat, and four sliding sleeves are arranged on the transverse movement slide shaft 4, and these sliding sleeves are in a sliding match state with the transverse movement slide shaft 4, and the transverse movement slide plate 3 is fixed above the sliding sleeves, and the sliding sleeves are distributed at the four corners of the transverse movement slide plate 3; on both sides of the transverse movement base 2, a transverse movement motor 5 is installed through a motor support plate, and the motor shaft of the transverse movement motor 5 is connected by a key The drive gear 6 is equipped in a manner; the drive gears 6 on both sides are connected by a chain 7; the lower side of the transverse slide 3 is fixed to the chain 7 by a fixed clamp; the vertical moving mechanism is installed on the transverse slide 3; when the transverse motor 5 starts to rotate, the chain 7 is driven by the drive gear 6 to move, and then the transverse slide 3 is moved along the transverse slide shaft 4, so as to complete the position adjustment and ensure that the submerged arc welding unit and the cleaning unit on the moving crossbeam plate 1 can be accurately aligned with the rare earth steel structure to be welded; Figure 4 As shown, the vertical moving mechanism is arranged on the transverse sliding slide 3; the vertical moving mechanism includes an n-shaped vertical moving frame 8, and vertical moving grooves are opened on both sides of the vertical moving frame 8. The vertical moving slide 9 is slidably matched on the vertical moving grooves, and the two ends of the movable cross beam plate 1 are respectively fixed to the vertical moving slide 9; a vertical moving fixing frame 10 is provided on the lower side of the vertical moving frame 8, and a vertical moving motor 11 is installed on the vertical moving fixing frame 10. The motor shaft of the vertical moving motor 11 extends upward from the vertical moving fixing frame 10 and is fixed to one end of the vertical moving lead screw 12 through a coupling, and the other end of the vertical moving lead screw 12 is rotatably matched with the upper side of the vertical moving frame 8 through a bearing; when the vertical moving motor 11 is started, the vertical moving lead screw 12 rotates, and the vertical moving slide 9 moves along the vertical moving groove, thereby adjusting the height position of the submerged arc welding unit and the cleaning unit.

[0034] The gas shielded welding unit is used to perform base welding on the weld area of ​​the rare earth steel structure fixed on the support unit; Figure 5As shown, the gas shielded welding unit includes a second transverse movement mechanism 13 and a gas shielded welding robot arm 14 arranged on the second transverse movement mechanism 13, and the second transverse movement mechanism 13 has the same structure as the first transverse movement mechanism; the second transverse movement mechanism 13 is used to drive the gas shielded welding robot arm 14 to move transversely; the gas shielded welding robot arm 14 adopts the existing six-axis robot arm, and the execution end of the gas shielded welding robot arm 14 is provided with a gas shielded welding machine 15; the cleaning unit first cleans the parent material of the weld area of ​​the rare earth steel structure, and the gas shielded welding robot arm 14 drives the gas shielded welding machine 15 to move to a position corresponding to the weld area of ​​the rare earth steel structure; the second transverse movement mechanism 13 drives the bottom of the gas shielded welding robot arm 14 to move transversely to weld the straight weld area of ​​the pipe wall of the rare earth steel structure.

[0035] like Figure 6 As shown, a welding adjustment seat 16 is relatively provided on the lower side of the movable crossbeam plate 1; a welding displacement motor 17 is fixed on the welding adjustment seat 16 on one side, and the motor shaft of the welding displacement motor 17 extends out of the welding adjustment seat 16 and is connected to one end of the welding adjustment screw 18, and the other end of the welding adjustment screw 18 is rotatably matched with the welding adjustment seat 16 on the other side through a bearing; two welding adjustment guide shafts 19 are provided between the two welding adjustment seats 16, and the two welding adjustment guide shafts 19 are respectively located on both sides of the welding adjustment screw 18; a U-shaped welding movable frame 20 is matched on the welding adjustment guide shaft 19 through a sliding sleeve, and the welding movable frame 20 is threadedly matched with the welding adjustment screw 18; when the welding displacement motor 17 is started, the welding movable frame 20 is driven to slide along the welding adjustment guide shaft 19 through the welding adjustment screw 18; the submerged arc welding welding unit and the cleaning unit are arranged on the welding movable frame 20.

[0036] The first transverse movement mechanism drives the submerged arc welding unit and the cleaning unit to align with the rare earth steel structure to be welded, and the vertical movement mechanism adjusts the height position of the submerged arc welding unit and the cleaning unit; the welding displacement motor 17 is started, and the welding adjustment screw 18 drives the welding movable frame 20 to slide along the welding adjustment guide shaft 19, and the cleaning unit cleans the base material of the weld area of ​​the rare earth steel structure; then the gas shielded welding unit performs base welding on the weld area of ​​the rare earth steel structure; then the welding displacement motor 17 is started again, and the submerged arc welding unit performs filling welding on the base welding part of the rare earth steel structure.

[0037] When the welding displacement motor 17 is started, the welding movable frame 20 is driven to slide along the welding adjustment guide shaft 19 through the welding adjustment screw 18, and the vibration is large, which affects the welding accuracy of the submerged arc welding unit to the rare earth steel structure; in order to solve this problem, Figure 7As shown, the welding adjustment seat 16 is in a broken line shape, and a first electromagnet 21 is provided at the bottom of the welding adjustment seat 16; the first transverse movement mechanism drives the submerged arc welding unit and the cleaning unit to align with the rare earth steel structure to be welded, and the vertical movement mechanism adjusts the height position of the submerged arc welding unit and the cleaning unit, and the welding adjustment seat 16 contacts the support unit; the first electromagnet 21 is turned on, and the welding adjustment seat 16 and the support unit are attracted as a whole; the jitter of the submerged arc welding unit during welding is reduced, and the welding accuracy and effect are improved.

[0038] like Figure 8 As shown, the submerged arc welding unit includes a submerged arc welding downward push rod 22 and a submerged arc welding gun 23. The submerged arc welding downward push rod 22 is fixed on the welding mobile frame 20. The push head of the submerged arc welding downward push rod 22 passes downward through the welding mobile frame 20 and is fixed to the submerged arc welding gun 23. The cleaning unit can be an existing simple air pump blowing cleaning method. One embodiment is that the cleaning unit includes a cleaning downward push rod 24 and a cleaning air pump 25. The cleaning air pump 25 is fixed to the welding mobile frame 20 through an air pump frame. The cleaning downward push rod 24 is fixed on the welding movable frame 20, and the push head of the cleaning downward push rod 24 passes downward through the welding movable frame 20 and is fixed on the upper side of the blowing chamber 26; the blowing chamber 26 is a cylindrical cavity structure, and the air outlet of the cleaning air pump 25 is connected with the side of the blowing chamber 26 through the cleaning hose 27; when cleaning the parent material in the weld area of ​​the rare earth steel structure, the cleaning air pump 25 is started to blow air into the inside of the blowing chamber 26, and the lower side of the blowing chamber 26 is used to blow and clean the parent material in the weld area of ​​the rare earth steel structure.

[0039] The cleaning effect of the direct spraying method is poor; in order to solve this problem, Figure 9-10As shown, a driving mounting frame 28 is provided inside the blowing chamber 26, and the driving mounting frame 28 is fixed to the inside of the blowing chamber 26; a conversion driving motor 29 is provided on the driving mounting frame 28, and the motor shaft of the conversion driving motor 29 passes downward through the driving mounting frame 28 and is fixed to the upper side of the ratchet shaft 30 through a coupling, and a ratchet gear 31 is keyed to the ratchet shaft 30; the ratchet shaft 30 is rotatably connected to a rotating plate 32, and both ends of the rotating plate 32 are fixed to a rotating ring 33 made of metal, and the lower side of the rotating plate 32 is rotatably matched with a ratchet card 34 (the torsion spring is not shown in the figure), and the ratchet card 34 is pressed onto the ratchet gear 31; clutch shafts 35 are vertically provided on both sides of the driving mounting frame 28, and a second electromagnet 36 is provided at the upper end of the clutch shaft 35, and the position of the second electromagnet 36 corresponds to the position of the rotating ring 33; a U-shaped The knocking fixed frame 37 has two knocking sliding shafts 38 slidingly matched on the lower side of the knocking fixed frame 37, and the upper end of the knocking sliding shaft 38 has an anti-slip structure, and the lower side of the knocking sliding shaft 38 passes through the knocking fixed frame 37 and is fixed to the knocking plate 39; the knocking plate 39 is a truncated cone structure that is wide at the top and narrow at the bottom, and a spray hole 40 is provided in the middle of the knocking plate 39; a knocking spring 41 is passed through the knocking sliding shaft 38 between the knocking fixed frame 37 and the knocking plate 39; the lower side of the blowing chamber 26 is fixed to the knocking ring 43 through a bellows 42, and the knocking plate 39 and the knocking ring 43 are rotatably matched; a swing plate 44 is provided on the lower side of the ratchet shaft 30, and two rope ears 45 are provided on the inner side of the knocking fixed frame 37, one end of the knocking rope 46 is connected to the anti-slip structure on the upper side of the knocking sliding shaft 38, and the other end of the knocking rope 46 passes through the rope ear 45 and is fixed to the swing plate 44.

[0040] like Fig.11 As shown, when cleaning the base material of the weld area of ​​the rare earth steel structure; the conversion drive motor 29 is started, driving the ratchet shaft 30 to rotate clockwise, and the ratchet gear 31 drives the rotating ring 33, the knocking fixed frame 37 and the knocking plate 39 to rotate clockwise as a whole through the ratchet clamp 34, and the air jet hole 40 on the knocking plate 39 rotates clockwise; the cleaning air pump 25 is started, and air is blown into the blowing chamber 26, and blown out from the rotating air jet hole 40, forming a position-changed blowing airflow, and the base material of the weld area of ​​the rare earth steel structure is sprayed and cleaned.

[0041] Rare earth steel structures expand when heated and contract when cooled. This expansion and contraction is restricted by the surrounding materials, which will generate stress and may cause material deformation. To solve this problem, the submerged arc welding unit performs fill welding on the base welding part of the rare earth steel structure, and then taps the weld and its surrounding area to help release stress. Fig.11As shown, the second electromagnet 36 is started, and the rotating ring 33 and the clutch shaft 35 are attracted into a whole; the conversion drive motor 29 is started and rotated counterclockwise, and the ratchet shaft 30 will rotate relative to the rotating plate 32; the swing plate 44 rotates relative to the rope ear 45, thereby pulling the knocking rope 46, the knocking plate 39 and the knocking ring 43 move upward as a whole, and the bellows 42 is squeezed; the second electromagnet 36 is closed, the rotating ring 33 and the knocking fixed frame 37 rotate as a whole, and under the action of the knocking spring 41, the knocking plate 39 knocks downward on the weld of the rare earth steel structure to help release stress; appropriate heat treatment after welding is completed can also eliminate or reduce residual stress, so an air heating device is provided inside the blowing chamber 26 (not shown in the figure, it can be an existing electric heating device); in the process of the knocking plate 39 knocking downward on the weld of the rare earth steel structure, the cleaning air pump 25 is started to blow air into the blowing chamber 26, and after being heated by the air heating device, hot air is blown out from the air hole 40 to help release stress.

[0042] Figure 12-13 The support unit structure schematic diagram is shown, the support unit includes a support frame 47 fixed to the ground and support L plates 48 arranged on both sides of the support frame 47; the support L plates 48 are connected to a U-shaped cross-section suspension seat 50 through a sling 49, and two U-shaped cross-section bearing support plates 51 are arranged on the suspension seat 50. The upper side of the bearing support plate 51 has an arc-shaped bearing groove 52, and the bearing groove 52 corresponds to the rare earth steel structure. The rare earth steel structure can be stuck in the bearing groove 52; four clamps are arranged on both sides of the suspension seat 50. A push rod base plate 53 is held, and a clamping cylinder 54 is provided on the clamping push rod base plate 53. A clamping block 55 is fixed on the push head of the clamping cylinder 54, and the clamping surface of the clamping block 55 corresponds to the rare earth steel structure; the rare earth steel structure is placed on the bearing support plate 51, and the clamping cylinders 54 on both sides are extended, and the clamping block 55 moves to the bearing groove 52 to clamp the rare earth steel structure; the bearing support plate 51 supports the bottom of the rare earth steel structure, and the clamping block 55 clamps both sides of the rare earth steel structure to ensure the stability of the fixation.

[0043] The rare earth steel structure is hoisted and stuck in the bearing groove 52, and the weld may be slightly deflected at an angle, so that the weld area of ​​the rare earth steel structure cannot be directly aligned with the submerged arc welding unit; in order to solve this problem, Fig.14As shown, circular micro-rotation driven wheels 56 are provided on both sides of the suspension seat 50, and the sides of the micro-rotation driven wheels 56 have card grooves; the upper and lower sides of the support L plate 48 are respectively provided with a press-fit plate slide groove 57 and an active plate slide groove 58, and an active plate slide shaft 59 is relatively provided in the active plate slide groove 58, and the active plate slide shaft 59 slides with the active wheel cross plate 60; the side of the active wheel cross plate 60 is vertically provided with a driving wheel vertical plate 61, and the two ends of the driving wheel vertical plate 61 are respectively rotatably connected with a fine-tuning driving wheel 62; the fine-tuning driving wheel 62 is rotated by a large torque motor 63; a press-fit plate slide shaft 64 is relatively provided in the press-fit plate slide groove 57, and the press-fit plate slide shaft 64 slides Cooperate with the crimping wheel horizontal plate 65; the side of the crimping wheel horizontal plate 65 is vertically provided with a crimping wheel vertical plate 66, and two fine-tuning crimping wheels 67 are rotatably matched with the crimping wheel vertical plate 66; the fine-tuning crimping wheel 67 and the fine-tuning active wheel 62 are rollingly matched in the slot of the micro-rotation driven wheel 56, and the crimping plate slide shaft 64 is penetrated with a crimping plate spring 68, and the crimping plate spring 68 forces the fine-tuning crimping wheel 67 to crimp the micro-rotation driven wheel 56; the side of the support L plate 48 is provided with a support push rod base plate 69, and the support push rod base plate 69 is provided with a support cylinder 70, and the push head of the support cylinder 70 passes through the support push rod base plate 69 upward and is fixed to the side of the active wheel horizontal plate 60; Fig.15 As shown, a zigzag crimping rope channel 71 is provided on the support L plate 48 , one end of the crimping rope 72 is fixed to the upper side of the driving wheel cross plate 60 , and the other end of the crimping rope 72 passes through the crimping rope channel 71 and is fixed to the side of the crimping wheel cross plate 65 .

[0044] When the weld area of ​​the rare earth steel structure cannot be aligned with the submerged arc welding unit, the high torque motor 63 rotates to drive the suspension seat 50 to rotate slightly as a whole, so as to be aligned with the submerged arc welding unit to ensure the welding quality; when the welding is completed, the knocking plate 39 knocks downward on the weld of the rare earth steel structure to help release the stress, the supporting cylinder 70 is retracted, the driving wheel cross plate 60 moves downward, and the crimping rope 72 drives the crimping wheel cross plate 65 to move upward; the fine-tuning crimping wheel 67 and the fine-tuning driving wheel 62 roll and separate from the fine-rotation driven wheel 56, and the sling 49 suspends the suspension seat 50, so that the suspension seat 50 is flexibly connected to the support L plate 48, reducing the vibration transmission during knocking, thereby protecting the load-bearing shaft of the high torque motor 63 and the fine-tuning driving wheel 62.

[0045] Considering the welding quality problem after the submerged arc welding unit performs filler welding on the rare earth steel structure; Figure 16-17As shown, welding detection mechanisms are provided on both sides of the hanger 50; the welding detection mechanisms include a detection push rod 73 fixed to the side of the hanger 50 and a detection sealing disk 74 fixed to the push head of the detection push rod 73, and a ring-shaped sealing airbag 75 is bonded to the annular inner edge of the detection sealing disk 74; a detection air pump 76 and a sealing air pump 77 are respectively fixed on both sides of the hanger 50 through an air pump bracket, and the air source output end of the detection air pump 76 is connected to the inside of the detection sealing disk 74 through a detection hose 79, and the air source output end of the sealing air pump 77 is connected to the sealing airbag 75 through a sealing hose 78; Rare earth steel structure welding After completion, the push rod 73 is extended to detect the contact seal between the sealing disk 74 and the two sides of the rare earth steel structure, and the sealing air pump 77 is turned on to inflate the sealing airbag 75. By detecting the crimping seal of the sealing disk 74 and the inflation seal of the sealing airbag 75, the double sealing of the rare earth steel structure is achieved; the air pump 76 is turned on to inflate the interior of the rare earth steel structure through the detection hose 79, so that the interior of the rare earth steel structure is in a detection positive pressure state, and the welded welds are inspected manually with a handheld detection instrument to see if there are any quality problems with the welding. If there are quality problems, the leaking parts can be repaired by welding.

[0046] If the fixing method is not separately introduced above, the general technical means used by technicians in the industry are used, such as welding, nesting, or threaded fixing.

[0047] The following points need to be explained: (1) The drawings of the embodiments of the present invention only relate to the structures related to the embodiments of the present invention, and other structures may refer to the general design.

[0048] (2) For the sake of clarity, in the drawings used to describe the embodiments of the present invention, the thickness of the layers or regions is exaggerated or reduced, that is, these drawings are not drawn according to the actual scale. It is understood that when an element such as a layer, film, region or substrate is referred to as being "on" or "under" another element, the element may be "directly" "on" or "under" the other element or there may be intermediate elements.

[0049] (3) In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to obtain new embodiments.

[0050] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. The protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A rare earth steel structure welding device, characterized in that: The invention comprises a plurality of support units for supporting a rare earth steel structure, wherein a gas shielded welding unit is provided between adjacent support units, and the gas shielded welding unit is used for performing base welding on a weld zone of the rare earth steel structure fixed on the support unit; first transverse movement mechanisms are provided on both sides of the support unit, and vertical movement mechanisms are provided on the two first transverse movement mechanisms respectively, and a movable cross beam plate (1) is provided between the vertical movement mechanisms; a submerged arc welding unit and a cleaning unit are connected to the movable cross beam plate (1), and the submerged arc welding unit is used for performing fill welding on a base welding part of the rare earth steel structure, and the cleaning unit cleans the parent material of the weld zone of the rare earth steel structure; a welding adjustment seat (16) is provided on the lower side of the movable cross beam plate (1); a welding displacement motor (17) is fixed on the welding adjustment seat (16) on one side, and the motor shaft of the welding displacement motor (17) extends out of the welding The connection adjustment seat (16) is connected to one end of the welding adjustment screw (18), and the other end of the welding adjustment screw (18) is rotatably matched with the welding adjustment seat (16) on the other side through a bearing; two welding adjustment guide shafts (19) are provided between the two welding adjustment seats (16), and the two welding adjustment guide shafts (19) are respectively located on both sides of the welding adjustment screw (18); a U-shaped welding movable frame (20) is matched on the welding adjustment guide shaft (19) through a sliding sleeve, and the welding movable frame (20) is threadedly matched with the welding adjustment screw (18); the submerged arc welding unit and the cleaning unit are arranged on the welding movable frame (20); the welding adjustment seat (16) is in a broken line shape, and a first electromagnet (21) is provided at the bottom of the welding adjustment seat (16); the first electromagnet (21) is used to attract the welding adjustment seat (16) and the support unit into a whole.

2. A rare earth steel structure welding device according to claim 1, characterized in that: The first transverse movement mechanism comprises a transverse movement base (2) and a transverse movement slide plate (3) slidably matched on the transverse movement base (2); a transverse movement slide shaft (4) is mounted on the transverse movement base (2) via an axle seat, a sliding sleeve is provided on the transverse movement slide shaft (4), and the transverse movement slide plate (3) is slidably matched with the transverse movement slide shaft (4) via the sliding sleeve; transverse movement motors (5) are mounted on both sides of the transverse movement base (2) via motor support plates, and a driving gear (6) is mounted on the motor shaft of the transverse movement motor (5) via a key connection; a chain (7) is used to realize transmission connection between the driving gears (6) on both sides; the lower side of the transverse movement slide plate (3) is fixed to the chain (7) via a fixing clamp; and a vertical movement mechanism is mounted on the transverse movement slide plate (3).

3. A rare earth steel structure welding device according to claim 2, characterized in that: The vertical moving mechanism comprises a vertical moving frame (8), vertical moving grooves are provided on both sides of the vertical moving frame (8), a vertical moving slide plate (9) is slidably engaged with the vertical moving grooves, and both ends of the moving cross beam plate (1) are respectively fixed to the vertical moving slide plate (9); a vertical moving fixing frame (10) is provided on the lower side of the vertical moving frame (8), a vertical moving motor (11) is installed on the vertical moving fixing frame (10), a motor shaft of the vertical moving motor (11) extends upward from the vertical moving fixing frame (10) and is fixed to one end of a vertical moving lead screw (12) through a coupling, and the other end of the vertical moving lead screw (12) is rotatably engaged with the upper side of the vertical moving frame (8) through a bearing.

4. A rare earth steel structure welding device according to claim 2, characterized in that: The gas shielded welding unit comprises a second transverse movement mechanism (13) and a gas shielded welding mechanical arm (14) arranged on the second transverse movement mechanism (13); the second transverse movement mechanism (13) is identical to the first transverse movement mechanism; and a gas shielded welding machine (15) is arranged at the execution end of the gas shielded welding mechanical arm (14).

5. The rare earth steel structure welding device according to claim 1, characterized in that: The cleaning unit comprises a cleaning downward push rod (24) and a cleaning air pump (25); the cleaning air pump (25) is fixed to the welding movable frame (20) through an air pump frame, the cleaning downward push rod (24) is fixed to the welding movable frame (20), and a push head of the cleaning downward push rod (24) passes downward through the welding movable frame (20) and is fixed to the upper side of the blowing chamber (26); the blowing chamber (26) is a cylindrical cavity structure, and an air outlet of the cleaning air pump (25) is connected to the side of the blowing chamber (26) through a cleaning hose (27).

6. A rare earth steel structure welding device according to claim 5, characterized in that: A drive mounting frame (28) is provided inside the spraying chamber (26), and the drive mounting frame (28) is fixed to the inside of the spraying chamber (26); a conversion drive motor (29) is provided on the drive mounting frame (28), and a motor shaft of the conversion drive motor (29) passes downward through the drive mounting frame (28) and is fixed to the upper side of a ratchet shaft (30) through a coupling, and a ratchet gear (31) is keyed to the upper side of the ratchet shaft (30); the ratchet shaft (30) is rotatably connected to a rotating plate (32), and both ends of the rotating plate (32) are fixed to a rotating ring (33) made of a metal material, and a ratchet clamp (34) is rotatably matched on the lower side of the rotating plate (32) through a torsion spring, and the ratchet clamp (34) is pressed onto the ratchet gear (31); clutch shafts (35) are vertically provided on both sides of the drive mounting frame (28), and a second electromagnet (36) is provided at the upper end of the clutch shaft (35); a knocking fixing frame (37) is provided on the lower side of the rotating ring (33), and a knocking fixing frame (37) is provided on the lower side of the rotating ring (33). The lower side of the fixing frame (37) is slidably matched with two striking sliding shafts (38), the upper end of the striking sliding shaft (38) has an anti-drop structure, and the lower side of the striking sliding shaft (38) passes through the striking fixing frame (37) and is fixed to the striking plate (39); an air injection hole (40) is provided in the middle of the striking plate (39); a striking spring (41) is passed through the striking sliding shaft (38) between the striking fixing frame (37) and the striking plate (39); the blowing chamber (26) The lower side of the ratchet shaft (30) is fixed to the knocking ring (43) through a bellows (42), and the knocking plate (39) and the knocking ring (43) are rotatably matched; a swing plate (44) is provided on the lower side of the ratchet shaft (30), and two rope ears (45) are provided on the inner side of the knocking fixing frame (37); one end of the knocking rope (46) is connected to the anti-slip structure on the upper side of the knocking sliding shaft (38), and the other end of the knocking rope (46) passes through the rope ear (45) and is fixed to the swing plate (44).

7. The rare earth steel structure welding device according to claim 1, characterized in that: The submerged arc welding unit comprises a submerged arc welding downward push rod (22) and a submerged arc welding gun (23); the submerged arc welding downward push rod (22) is fixed on a welding movable frame (20); a push head of the submerged arc welding downward push rod (22) passes downward through the welding movable frame (20) and is fixed to the submerged arc welding gun (23).

8. The rare earth steel structure welding device according to claim 1, characterized in that: The support unit comprises a support frame (47) fixed to the ground and a support L-plate (48) arranged on both sides of the support frame (47); the support L-plate (48) is connected to a U-shaped cross-section suspension seat (50) through a sling (49); two U-shaped cross-section bearing support plates (51) are arranged on the suspension seat (50) in opposite directions; the upper side of the bearing support plates (51) has an arc-shaped bearing groove (52), and the bearing groove (52) corresponds to the rare earth steel structure; clamping push rod base plates (53) are arranged on both sides of the suspension seat (50) in opposite directions; a clamping cylinder (54) is arranged on the clamping push rod base plate (53); a clamping block (55) is fixed on the push head of the clamping cylinder (54), and a clamping surface of the clamping block (55) corresponds to the rare earth steel structure.

9. A rare earth steel structure welding device according to claim 8, characterized in that: The two sides of the suspension seat (50) are provided with circular micro-rotating driven wheels (56), and the side of the micro-rotating driven wheels (56) has a card slot; the upper and lower sides of the support L plate (48) are respectively provided with a pressing plate slide groove (57) and an active plate slide groove (58), and an active plate slide shaft (59) is relatively provided in the active plate slide groove (58), and the active plate slide shaft (59) is slidably matched with the active wheel cross plate (60); a driving wheel vertical plate (61) is vertically provided on the side of the active wheel cross plate (60), and the two ends of the active wheel vertical plate (61) are respectively rotatably connected with a fine-tuning active wheel (62); the fine-tuning active wheel (62) is rotated by a large torque motor (63); a pressing plate slide shaft (64) is relatively provided in the pressing plate slide groove (57), and the pressing plate slide shaft (64) is slidably matched with the pressing wheel cross plate (65); a pressing wheel vertical plate (66) is vertically provided on the side of the pressing wheel cross plate (65), and two fine-tuning pressing wheels (67 ) is rotatably engaged with the crimping wheel vertical plate (66); the fine-tuning crimping wheel (67) and the fine-tuning driving wheel (62) are rollingly engaged with the slot of the fine-rotating driven wheel (56); a crimping plate spring (68) is passed through the crimping plate slide shaft (64), and the crimping plate spring (68) forces the fine-tuning crimping wheel (67) to crimp the fine-rotating driven wheel (56); a supporting push rod base plate (69) is provided on the side of the support L plate (48), and the supporting push rod base plate (69) A support cylinder (70) is provided on the support cylinder (70), and a push head of the support cylinder (70) passes through the support push rod base plate (69) upwards and is fixed to the side of the driving wheel horizontal plate (60); a folded line-shaped crimping rope channel (71) is provided on the support L plate (48), one end of the crimping rope (72) is fixed to the upper side of the driving wheel horizontal plate (60), and the other end of the crimping rope (72) passes through the crimping rope channel (71) and is fixed to the side of the crimping wheel horizontal plate (65).

10. A rare earth steel structure welding method, characterized in that: The following steps are included: Using the rare earth steel structure welding device as described in claim 1, the base material of the weld area of ​​the rare earth steel structure is cleaned by the cleaning unit; the base welding of the weld area of ​​the rare earth steel structure is performed by the gas shielded welding unit; and the base welding part of the rare earth steel structure is filled with welding by the submerged arc welding unit.

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