CN111730175A - Dual-purpose double-wire welding gun for gas shield welding and submerged arc welding - Google Patents
Dual-purpose double-wire welding gun for gas shield welding and submerged arc welding Download PDFInfo
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- CN111730175A CN111730175A CN202010644860.4A CN202010644860A CN111730175A CN 111730175 A CN111730175 A CN 111730175A CN 202010644860 A CN202010644860 A CN 202010644860A CN 111730175 A CN111730175 A CN 111730175A
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- 238000003466 welding Methods 0.000 title claims abstract description 158
- 230000004907 flux Effects 0.000 claims abstract description 55
- 230000008878 coupling Effects 0.000 claims abstract description 3
- 238000010168 coupling process Methods 0.000 claims abstract description 3
- 238000005859 coupling reaction Methods 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims description 74
- 238000001816 cooling Methods 0.000 claims description 54
- 239000000523 sample Substances 0.000 claims description 34
- 239000002184 metal Substances 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 239000000498 cooling water Substances 0.000 description 7
- 239000004593 Epoxy Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000011179 visual inspection Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/18—Submerged-arc welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/24—Features related to electrodes
- B23K9/28—Supporting devices for electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
- B23K9/321—Protecting means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
- B23K9/325—Devices for supplying or evacuating shielding gas
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- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention provides a dual-purpose double-wire welding gun for gas shield welding and submerged arc welding, which comprises a support and an upper frame seat, wherein the upper frame seat is rotatably arranged on the support, a welding flux conveying assembly is arranged on the upper frame seat, and a gas shield welding assembly is also arranged on the support; gas shield welding subassembly is including gyration subassembly, barral of a gun and air cock subassembly, gyration subassembly rotatable coupling in the support intermediate position, the air cock subassembly set firmly in on the gyration subassembly, barral of a gun cartridge in on the gyration subassembly and its end is followed stretch out in the air cock subassembly. The invention has the functions of direct welding and fillet welding, can change the 'serial' placement into 'parallel' placement of double wires, can carry out double-wire gas shielded welding and double-wire submerged arc welding, and meets the requirement of universal standardization of products.
Description
Technical Field
The invention relates to the technical field of welding, in particular to a dual-purpose double-wire welding gun for gas shield welding and submerged arc welding.
Background
Fig. 1 shows a conventional gas shielded welding twin-wire welding gun (abbreviated as "gas shielded welding"). In the figure: 1 ' is a welding wire, 2 ' is an air tap, 3 ' is a gun rod, 4 ' is a gun sleeve, and 5 ' is a locking screw. The straight welding seam is welded, and if the fillet welding seam is required to be welded, the air tap 2 'and the gun rod 3' need to be rotated by 40-50 degrees; sometimes, in order to make the welding seam wider, the arrangement of the double wires is changed from the arrangement in series to the arrangement in parallel. These mechanical actions are all accomplished by the welding robot. However, for an automatic welding machine without a welding robot, a corresponding mechanism needs to be additionally arranged to complete the machine actions, so that the workload of design, manufacture and processing of each automatic welding machine is increased, and the requirement of product universalization and standardization is not met.
Fig. 2 shows an active submerged arc gun rod structure. In the figure: 1-1 is welding wire, 2-1 is welding nozzle (with gun rod, contact nozzle and welding flux inside), 3-1 is welding flux feeding device, and 4-1 is guiding probe.
At present, a dual-purpose dual-wire welding gun for realizing gas shielded welding dual-wire welding and submerged arc welding dual-wire welding is lacked.
Disclosure of Invention
In view of the problems, the invention provides a dual-purpose double-wire welding gun for gas shield welding and submerged arc welding, which has the functions of straight welding and fillet welding, can be used for carrying out double-wire gas shield welding and double-wire submerged arc welding by changing the 'serial' placement into 'parallel' placement, and meets the requirement of product generalization and standardization.
In order to solve the technical problems, the invention adopts the technical scheme that: a dual-purpose twin-wire welding gun for gas shield welding and submerged arc welding comprises a support and an upper frame base which is rotatably arranged on the support, wherein a welding flux conveying assembly is arranged on the upper frame base, and a gas shield welding assembly is also arranged on the support; gas shield welding subassembly is including gyration subassembly, barral of a gun and air cock subassembly, gyration subassembly rotatable coupling in the support intermediate position, the air cock subassembly set firmly in on the gyration subassembly, barral of a gun cartridge in on the gyration subassembly and its end is followed stretch out in the air cock subassembly.
According to the preferable scheme, a square tube is fixedly arranged on one side of the upper frame base, a front tube frame is arranged in the square tube, a rear tube frame is arranged on the other side of the upper frame base, the end part of the rear tube frame penetrates through the upper frame base and is fixedly connected with the side face of the square tube, and the two welding flux conveying assemblies are respectively arranged on the front tube frame and the rear tube frame.
Preferably, the flux conveying assembly comprises a flux hopper and a flux pipe, the flux pipe is fixedly arranged at the bottom end of the flux hopper and communicated with the flux hopper, and a clamping ring is arranged on the flux pipe and used for controlling the conveying amount of the flux.
Preferably, the welding flux conveying assembly further comprises a probe assembly, the probe assembly comprises a probe clamp and a probe inserted on the probe clamp, the probe clamp is sleeved on the lower portion of the welding flux tube, and the probe is used for indicating whether the welding seam deviates or not.
Preferably, the two side walls of the bracket are symmetrically provided with a central through hole and a slotted hole surrounding the central through hole, screws are inserted into the central through hole and the slotted hole, and the end parts of the screws penetrate through the side walls of the bracket and are fixedly connected with the rotary component.
According to a preferable scheme, the rotary assembly comprises a base plate, vertical plates and upper pressure plates, the two vertical plates are fixedly arranged on the base plate, the upper pressure plates are arranged on the two vertical plates to form a limiting space, two gun sleeves are arranged in the limiting space, and gun rod through holes are formed in the gun sleeves and can be used for the gun rods to penetrate through.
As a preferred scheme, the gas shield welding assembly further comprises a sealing plate assembly, the sealing plate assembly is arranged between the gas nozzle assembly and the base plate, the sealing plate assembly comprises an upper gas nozzle plate, a gas nozzle sealing plate and a lower gas nozzle plate which are sequentially arranged below the base plate from top to bottom, and a gun rod sealing plate which is arranged among the upper gas nozzle plate, the gas nozzle sealing plate and the lower gas nozzle plate and is used for the gun rod to pass through, and a first cooling cavity is formed among the gun rod sealing plate, the upper gas nozzle plate, the gas nozzle sealing plate and the lower gas nozzle plate; the air nozzle assembly comprises an inner air nozzle, an outer air nozzle and an air nozzle sealing plate, the outer air nozzle is sleeved outside the inner air nozzle, the top end parts of the inner air nozzle and the outer air nozzle are fixedly arranged at the bottom end part of the lower air nozzle plate, the air nozzle sealing plate is connected between the inner air nozzle and the outer air nozzle in a sealing mode, and a second cooling cavity is formed among the inner air nozzle, the outer air nozzle and the air nozzle sealing plate; the base plate is provided with an inlet pipe, the end part of the inlet pipe penetrates through the base plate and the upper air nozzle plate and is communicated with the first cooling cavity, a bent pipe is communicated between the lower air nozzle plate and the outer air nozzle, the outer air nozzle side wall is further provided with an outlet pipe, and the outlet pipe is communicated with the second cooling cavity.
As a preferred scheme, the gas shield welding assembly further comprises a sealing plate assembly, the sealing plate assembly is arranged between the gas nozzle assembly and the base plate, the sealing plate assembly comprises an upper gas nozzle plate, a gas nozzle sealing plate and a lower gas nozzle plate which are sequentially arranged below the base plate from top to bottom, and a gun rod sealing plate which is arranged among the upper gas nozzle plate, the gas nozzle sealing plate and the lower gas nozzle plate and is used for the gun rod to pass through, and a first cooling cavity is formed among the gun rod sealing plate, the upper gas nozzle plate, the gas nozzle sealing plate and the lower gas nozzle plate; the air nozzle assembly comprises an inner air nozzle, an outer air nozzle and an air nozzle sealing plate, the outer air nozzle is sleeved outside the inner air nozzle, the top end parts of the inner air nozzle and the outer air nozzle are fixedly arranged at the bottom end part of the lower air nozzle plate, the air nozzle sealing plate is connected between the inner air nozzle and the outer air nozzle in a sealing mode, and a second cooling cavity is formed among the inner air nozzle, the outer air nozzle and the air nozzle sealing plate; the base plate is provided with an inlet pipe, the end part of the inlet pipe penetrates through the base plate and the upper air nozzle plate and is communicated with the first cooling cavity, a plurality of lower air nozzle plate leakage holes are formed in the positions, corresponding to the second cooling cavity, of the lower air nozzle plate and are used for communicating the first cooling cavity with the second cooling cavity, the outer air nozzle side wall is provided with an outlet pipe, and the outlet pipe is communicated with the second cooling cavity.
Preferably, the included angle between the axis of the gun rod through hole and the vertical surface is 0-20 degrees.
According to the preferable scheme, two opposite side walls of the gun sleeve are provided with locking through holes communicated with the gun rod through hole, a locking nut is arranged in each locking through hole, a metal pressure rod is inserted into the gun sleeve above and below the locking nut and is embedded into pits on the upper end surface and the lower end surface of the locking nut to prevent the locking nut from sliding out, and a locking screw is connected to the inner thread of the locking nut and used for locking the gun rod in the gun sleeve.
Compared with the prior art, the invention has the beneficial effects that:
(1) the welding flux conveying assembly is placed in front of and behind the support, so that the welding gun can weld when moving forwards or backwards, the return time is not needed, the operation is convenient, and the production efficiency is improved.
(2) The center through hole on the gyration subassembly used the support rotates as the axle for the rifle bar can be at positive and negative 0-50 degrees internal rotations, has realized the welding of fillet weld, and the practicality is strong.
(3) The bracket takes the center of the bracket seat as an axis and can rotate in 0-90 degrees, so that the arrangement of the double wires is gradually changed from 'serial' to 'parallel', and the width of the welding line can be conveniently adjusted.
(4) When submerged arc welding is carried out, because welding flux covers a welding seam, a probe needs to be placed at a position without the welding flux to indicate whether the welding seam deviates. In this application, adopt three probe to indicate the center and two sides of welding seam (groove) respectively, two sides are aimed at to the probe, and the welder visual inspection is aimed at more accurately.
(5) The existing twin-wire welding gun only has the second cooling cavity and does not have the first cooling cavity, so that cooling water cannot cool the position of the upper nozzle plate, the temperature of the rotary assembly substrate is high, and a gun sleeve is easy to damage. This patent lets in the cooling water through in "first cooling chamber" and "second cooling chamber", makes the temperature reduction of gyration subassembly and gas nozzle subassembly, and the protection gun case can not be baked bad.
(6) Because the gun case adopts the epoxy board preparation, when screwing locking screw hard, the screw thread very easily damages, causes smooth silk, does not screw locking screw hard, and the barral of a gun will slide in the gun case again, influences the welding, through set up lock nut in the locking through-hole to embedding metal depression bar prevents lock nut roll-off, screws locking screw and can firmly fix the barral of a gun in the gun case, and is difficult for causing smooth silk.
Drawings
The disclosure of the present invention is illustrated with reference to the accompanying drawings. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the invention. In the drawings, like reference numerals are used to refer to like parts. Wherein:
FIG. 1 is a schematic structural diagram of a prior art gas shield welding twin-wire welding gun;
FIG. 2 is a schematic view of a submerged arc welding gun according to the prior art;
FIG. 3 is a schematic structural diagram of a dual-purpose twin-wire welding gun for gas shield welding and submerged arc welding according to a first embodiment of the present invention;
FIG. 4 is a schematic structural view of another view angle of a dual-purpose twin-wire welding gun for gas shield welding and submerged arc welding according to a first embodiment of the present invention;
FIG. 5 is an exploded view of a dual-purpose twin-wire torch for gas shield welding and submerged arc welding according to a first embodiment of the present invention;
FIG. 6 is a side view of a bracket according to a first embodiment of the invention;
fig. 7 is a cross-sectional view of a holster according to a first embodiment of the present invention;
FIG. 8 is a schematic structural view of a sealing plate assembly, an air nozzle assembly and a tube assembly according to a first embodiment of the present invention;
FIG. 9 is a longitudinal cross-sectional view of FIG. 8;
FIG. 10 is a schematic structural view of a closure plate assembly, an air nozzle assembly and a tube assembly according to a second embodiment of the present invention;
FIG. 11 is a top view of FIG. 10;
FIG. 12 is a cross-sectional view taken along line A-A of FIG. 11;
fig. 13 is a schematic structural view of a lower nozzle plate according to a second embodiment of the present invention.
Reference numbers in the figures: 1 support, 101 central through hole, 102 slotted hole, 2 gyration subassembly, 201 base plate, 202 riser, 203 top board, 3 gun rod, 4 gun sleeve, 401 gun rod through hole, 402 lock nut, 403 metal compression bar, 5 shrouding subassembly, 501 upper nozzle board, 502 air nozzle shrouding, 503 lower nozzle board, 504 gun rod shrouding, 505 first cooling chamber, 506 lower nozzle board small opening, 6 air nozzle subassembly, 601 outer air nozzle, 602 inner air nozzle, 603 air nozzle sealing board, 604 second cooling chamber, 7 pipe subassembly, 701 inlet tube, 702 bent pipe, 703 outlet pipe, 8 upper frame base, 9 square cylinder, 10 welding flux hopper, 11 front pipe frame, 12 back pipe frame, 13 snap ring, 14 welding flux pipe, 15 probe subassembly, 1501 probe clamp, 1502 probe.
Detailed Description
It is easily understood that according to the technical solution of the present invention, a person skilled in the art can propose various alternative structures and implementation ways without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical aspects of the present invention, and should not be construed as all of the present invention or as limitations or limitations on the technical aspects of the present invention.
Example one
An embodiment according to the invention is shown in connection with fig. 3 to 5. The utility model provides a dual-purpose twin-wire welder of gas shielded arc welding submerged arc welding, includes support 1, goes up frame foundation 8, welding flux conveying assembly and gas shielded arc welding subassembly, goes up frame foundation 8 rotatable the setting on support 1, and concrete connected mode is through pivot, round pin axle or other suitability modes, goes up frame foundation 8 front and back both sides and is provided with welding flux conveying assembly for carry the welding flux.
Specifically, the flux conveying assembly comprises a flux hopper 10 and a flux pipe 14, the flux pipe 14 is fixedly arranged at the bottom end of the flux hopper 10 and communicated with the flux hopper, a clamping ring 13 is arranged on the flux pipe 14, and an adjusting screw is arranged on the clamping ring 13 and used for controlling the conveying amount of flux in the flux hopper 10. The diameter of the welding flux tube 14 is less than 20 mm, so that the welding flux tube is suitable for welding of narrow grooves.
A square tube 9 is fixedly arranged on one side of the upper frame base 8, a front tube frame 11 is arranged in the square tube 9, a rear tube frame 12 is arranged on the other side of the upper frame base 8, and the end part of the rear tube frame 12 penetrates through the upper frame base 8 and is fixedly connected with the side wall of the square tube 9. The two welding flux tubes 14 are respectively inserted on the front tube frame 11 and the rear tube frame 12, and locking screws are arranged on the front tube frame 11 and the rear tube frame 12, so that the fixing positions of the welding flux tubes 14 can be adjusted by adjusting the locking screws.
In the embodiment of the invention, the support 1 is in an inverted U-shaped bent plate structure, the gas shielded welding assembly is rotatably arranged in the middle of the inverted U-shaped bent plate structure, and the gas shielded welding assembly comprises a rotary assembly 2, a sealing plate assembly 5, a gun rod 3, a gun sleeve 4, an air nozzle assembly 6 and a pipe assembly 7.
Wherein, above-mentioned gyration subassembly 2 includes base plate 201, riser 202 and top board 203, sets firmly two risers 202 on the base plate 201, and is provided with top board 203 on two risers 202 to form spacing space, has the recess on the base plate 201, and two gun sleeves 4 are located the recess. Gun rod through holes 401 are formed in the gun case 4, the included angle between the axis of the gun rod through holes 401 and the vertical surface is 0-20 degrees, 6 degrees is preferred, the two gun rods 3 are symmetrically arranged in the two gun rod through holes 401 in a penetrating mode, and welding wires are arranged in the gun rods 3.
Referring to fig. 6, a central through hole 101 and a slot hole 102 surrounding the central through hole 101 are symmetrically disposed on two sides of the bracket 1, screws are inserted into the central through hole 101 and the slot hole 102, ends of the screws are fixedly connected to the vertical plate 202, and the ends of the screws in the central through hole 101 penetrate through the vertical plate 202 and extend into the limiting space to abut against the holster 4, so as to limit the position of the holster 4. The rotating assembly 2 rotates by taking the central through hole 101 in the support 1 as an axis, so that the gun rod 3 can rotate in plus and minus 0-50 degrees, the fillet weld is welded, and the practicability is high.
Referring to fig. 7, two opposite side walls of the holster 4 are provided with a locking through hole (not shown) communicated with the gun rod through hole 401, a locking nut 402 is arranged in the locking through hole, a metal pressure rod 403 is inserted into the holster 4 above and below the locking nut 402, the metal pressure rod 403 is embedded into pits on the upper and lower end surfaces of the locking nut 402 to prevent the locking nut 402 from sliding out, and a locking screw is connected to the locking nut 402 in a threaded manner to lock the gun rod 3 in the holster 4.
Referring to fig. 8 and 9, in the embodiment of the present invention, the sealing plate assembly 5 includes an upper nozzle plate 501, an air nozzle sealing plate 502, and a lower nozzle plate 503, which are sequentially disposed from top to bottom below the base plate 201, and a gun rod sealing plate 504 disposed therebetween for the gun rod 3 to pass through, wherein a first cooling cavity 505 is formed between the gun rod sealing plate 504 and the upper nozzle plate 501, the air nozzle sealing plate 502, and the lower nozzle plate 503. Specifically, the air nozzle sealing plate 502 is of a circular ring structure and is connected between the upper air nozzle plate 501 and the lower air nozzle plate 503 in a sealing manner, through holes corresponding to the positions are formed in the upper air nozzle plate 501 and the lower air nozzle plate 503, the upper end and the lower end of the gun rod sealing plate 504 are connected with the through holes in the upper air nozzle plate 501 and the lower air nozzle plate 503 in a sealing manner respectively, and the sealing connection manner is welding connection. The gun rod 3 can move left and right in the circular ring structure of the air nozzle closing plate 502 to adjust the distance between the two welding wires.
The air nozzle assembly 6 comprises an inner air nozzle 602, an outer air nozzle 601 and an air nozzle sealing plate 603, the outer air nozzle 601 is sleeved outside the inner air nozzle 602, the top end parts of the inner air nozzle and the outer air nozzle are fixedly arranged at the bottom end part of the lower air nozzle plate 503, the air nozzle sealing plate 603 is hermetically connected between the inner air nozzle 602 and the outer air nozzle 601, and a second cooling cavity 604 is formed between the inner air nozzle 602 and the outer air nozzle 601.
Furthermore, the welding flux conveying assembly further comprises a probe assembly 15, the probe assembly 15 comprises a probe clamp 1501 and probes 1502 inserted on the probe clamp 1501, the probe clamp 1501 is connected to the lower portion of the welding flux tube 14 in a sleeved mode, each group of probe assemblies 15 comprises 3 probes 1502, the middle probes 1502 indicate the center of a weld slope, the probes 1502 on two sides indicate two sides of the slope, and therefore the alignment can be observed by a welder through naked eyes more accurately.
Example two
In the embodiment of the invention, the implementation mode only differs from the first embodiment in the sealing plate assembly, the air nozzle assembly and the pipe assembly.
Referring to fig. 10 to 13, the sealing plate assembly is disposed between the air nozzle assembly 6 and the base plate 201, the sealing plate assembly 5 includes an upper air nozzle plate 501, an air nozzle sealing plate 502, a lower air nozzle plate 503, and a gun rod sealing plate 504 disposed between the upper air nozzle plate 501 and the lower air nozzle plate 503 for the gun rod 3 to pass through, and a first cooling cavity 505 is formed between the gun rod sealing plate 504 and the upper air nozzle plate 501, the air nozzle sealing plate 502, and the lower air nozzle plate 503.
The air nozzle assembly 6 comprises an inner air nozzle 602, an outer air nozzle 601 and an air nozzle sealing plate 603, the outer air nozzle 601 is sleeved outside the inner air nozzle 602, the top end parts of the inner air nozzle 601 and the outer air nozzle are fixedly arranged at the bottom end part of the lower air nozzle plate 503, the air nozzle sealing plate 603 is hermetically connected between the inner air nozzle 602 and the outer air nozzle 601, and a second cooling cavity 604 is formed among the inner air nozzle 602, the outer air nozzle 601 and the air nozzle sealing plate 603.
The pipe assembly 7 comprises a water inlet pipe 701 and a water outlet pipe 703, the base plate 201 is provided with the water inlet pipe 701, the end part of the water inlet pipe 701 penetrates through the base plate 201 and the upper nozzle plate 501 to be communicated with the first cooling cavity 505, the lower nozzle plate 503 is provided with a plurality of lower nozzle plate leakage holes 506 corresponding to the second cooling cavity 604 and used for communicating the first cooling cavity 505 with the second cooling cavity 604, the side wall of the outer nozzle 601 is provided with the water outlet pipe 703, one end part of the water outlet pipe 703 is communicated with the second cooling cavity 604, and the other end part is bent upwards to sequentially penetrate through the lower nozzle plate 503, the air nozzle closing plate 502, the upper nozzle plate 501 and the base plate 201 and extend to the outer side.
The water inlet pipe 701 and the water outlet pipe 703 are respectively connected with an inlet and an outlet of an external cooling pipe, cooling water enters the first cooling cavity 505 from the water inlet pipe 701 to cool the sealing plate assembly 5, flows into the second cooling cavity 604 through the lower nozzle plate leakage hole 506 to cool the air nozzle assembly 6, and finally flows out of the water outlet pipe 703. Through letting in cooling water while cooling shrouding subassembly 5 and air nozzle subassembly 6, in time take away the heat that the welding produced, the cooling effect is good, can protect gun case 4 can not be baked badly.
Based on the technical scheme of the invention, the welding flux can be conveyed by the double-wire welding gun to be used as a submerged arc welding double-wire welding gun; the protective gas, such as CO2 gas, can be used as a gas shielded welding double-wire welding gun. The flux delivery assembly may be eliminated when used as a gas shielded twin wire welding gun.
In conclusion, the invention discloses a dual-purpose double-wire welding gun for gas shield welding and submerged arc welding, the welding flux conveying assemblies are arranged in front of and behind the gun rod 3, so that the gun rod 3 can be welded when moving forwards or backwards, and the operation is convenient; the rotary component 2 rotates by taking the central through hole 101 on the bracket 1 as an axis, so that the gun rod 3 can rotate in plus and minus 0-50 degrees, the fillet weld is welded, and the practicability is high; the bracket 1 takes the center of the bracket seat 8 as an axis and can rotate in 0-90 degrees, so that the arrangement of the double wires is gradually changed from 'serial' to 'parallel', and the width of the welding seam can be conveniently adjusted.
When submerged arc welding is carried out, because welding flux covers a welding seam, a probe needs to be placed at a position without the welding flux to indicate whether the welding seam deviates. In this application, adopt three probe 1502 to indicate the center and two sides of welding seam (groove) respectively, two sides are aimed at to probe 1502, and it is more accurate that the welder visual inspection aligns. The cooling water cools the rotary component 2 and the air nozzle component 6 at the same time, so that the temperature of the air nozzle plate is reduced, and the gun sleeve 4 is protected from being baked. Because the gun case 4 is made of the epoxy plate, when the locking screw is screwed with force, the thread is easy to damage, the thread slides, the locking screw is not screwed with force, the gun rod 3 can slide in the gun case 4 again, the welding is affected, the locking nut 402 is arranged in the locking through hole, the metal pressure rod 403 is embedded, the locking nut 402 is prevented from sliding out, the gun rod 3 can be firmly fixed in the gun case 4 by screwing the locking screw, and the thread sliding is not easy to cause.
The technical scope of the present invention is not limited to the above description, and those skilled in the art can make various changes and modifications to the above-described embodiments without departing from the technical spirit of the present invention, and such changes and modifications should fall within the protective scope of the present invention.
Claims (10)
1. A dual-purpose double-wire welding gun for gas shield welding and submerged arc welding is characterized by comprising a support and an upper frame base which is rotatably arranged on the support, wherein a welding flux conveying assembly is arranged on the upper frame base, and a gas shield welding assembly is also arranged on the support;
gas shield welding subassembly is including gyration subassembly, barral of a gun and air cock subassembly, gyration subassembly rotatable coupling in the support intermediate position, the air cock subassembly set firmly in on the gyration subassembly, barral of a gun cartridge in on the gyration subassembly and its end is followed stretch out in the air cock subassembly.
2. The dual-purpose twin-wire welding gun for gas shield welding and submerged arc welding according to claim 1, wherein a square tube is fixedly arranged on one side of the upper frame base, a front tube frame is arranged in the square tube, a rear tube frame is arranged on the other side of the upper frame base, the end of the rear tube frame penetrates through the upper frame base and is fixedly connected with the side face of the square tube, and the two welding flux conveying assemblies are respectively arranged on the front tube frame and the rear tube frame.
3. The dual-purpose twin-wire welding gun for gas shielded arc welding according to claim 1, wherein the flux feeding assembly comprises a flux hopper and a flux tube, the flux tube is fixedly arranged at the bottom end of the flux hopper and is communicated with the flux hopper, and a clamping ring is arranged on the flux tube and is used for controlling the feeding amount of the flux.
4. The dual-purpose twin-wire welding gun for gas shielded arc welding of claim 3, wherein the flux delivery assembly further comprises a probe assembly, the probe assembly comprises a probe clamp and a probe inserted on the probe clamp, the probe clamp is sleeved on the lower part of the flux tube, and the probe is used for indicating whether the welding seam is deviated or not.
5. The dual-purpose twin-wire welding gun for gas shield welding and submerged arc welding of claim 1, wherein the two side walls of the bracket are symmetrically provided with a central through hole and a slotted hole surrounding the central through hole, the central through hole and the slotted hole are both inserted with screws, and the ends of the screws penetrate through the side walls of the bracket and are fixedly connected with the rotating assembly.
6. The dual-purpose twin-wire welding gun for gas shield welding and submerged arc welding of claim 1, wherein the rotating assembly comprises a base plate, vertical plates and an upper pressing plate, two vertical plates are fixedly arranged on the base plate, the upper pressing plate is arranged on the two vertical plates to form a limiting space, two gun sleeves are arranged in the limiting space, and gun rod through holes are formed in the gun sleeves and can be used for the gun rods to pass through.
7. The dual-purpose twin-wire welding gun for gas shield welding and submerged arc welding of claim 6, wherein the gas shield welding assembly further comprises a sealing plate assembly, the sealing plate assembly is arranged between the gas nozzle assembly and the base plate, the sealing plate assembly comprises an upper gas nozzle plate, a gas nozzle sealing plate and a lower gas nozzle plate which are sequentially arranged below the base plate from top to bottom, and a gun rod sealing plate is arranged among the upper gas nozzle plate, the gas nozzle sealing plate and the lower gas nozzle plate, and a first cooling cavity is formed among the gun rod sealing plate, the upper gas nozzle plate, the gas nozzle sealing plate and the lower gas nozzle plate;
the air nozzle assembly comprises an inner air nozzle, an outer air nozzle and an air nozzle sealing plate, the outer air nozzle is sleeved outside the inner air nozzle, the top end parts of the inner air nozzle and the outer air nozzle are fixedly arranged at the bottom end part of the lower air nozzle plate, the air nozzle sealing plate is connected between the inner air nozzle and the outer air nozzle in a sealing mode, and a second cooling cavity is formed among the inner air nozzle, the outer air nozzle and the air nozzle sealing plate;
the base plate is provided with an inlet pipe, the end part of the inlet pipe penetrates through the base plate and the upper air nozzle plate and is communicated with the first cooling cavity, a bent pipe is communicated between the lower air nozzle plate and the outer air nozzle, the outer air nozzle side wall is further provided with an outlet pipe, and the outlet pipe is communicated with the second cooling cavity.
8. The dual-purpose twin-wire welding gun for gas shield welding and submerged arc welding of claim 6, wherein the gas shield welding assembly further comprises a sealing plate assembly, the sealing plate assembly is arranged between the gas nozzle assembly and the base plate, the sealing plate assembly comprises an upper gas nozzle plate, a gas nozzle sealing plate and a lower gas nozzle plate which are sequentially arranged below the base plate from top to bottom, and a gun rod sealing plate is arranged among the upper gas nozzle plate, the gas nozzle sealing plate and the lower gas nozzle plate, and a first cooling cavity is formed among the gun rod sealing plate, the upper gas nozzle plate, the gas nozzle sealing plate and the lower gas nozzle plate;
the air nozzle assembly comprises an inner air nozzle, an outer air nozzle and an air nozzle sealing plate, the outer air nozzle is sleeved outside the inner air nozzle, the top end parts of the inner air nozzle and the outer air nozzle are fixedly arranged at the bottom end part of the lower air nozzle plate, the air nozzle sealing plate is connected between the inner air nozzle and the outer air nozzle in a sealing mode, and a second cooling cavity is formed among the inner air nozzle, the outer air nozzle and the air nozzle sealing plate;
the base plate is provided with an inlet pipe, the end part of the inlet pipe penetrates through the base plate and the upper air nozzle plate and is communicated with the first cooling cavity, a plurality of lower air nozzle plate leakage holes are formed in the positions, corresponding to the second cooling cavity, of the lower air nozzle plate and are used for communicating the first cooling cavity with the second cooling cavity, the outer air nozzle side wall is provided with an outlet pipe, and the outlet pipe is communicated with the second cooling cavity.
9. The dual-purpose twin-wire welding gun for gas shield welding submerged arc welding of claim 6, wherein the angle between the axis of the shank through hole and the vertical plane is 0 ° to 20 °.
10. The dual-purpose twin-wire welding gun for gas shielded arc welding and submerged arc welding of claim 6, wherein two opposite side walls of the gun case are provided with locking through holes communicated with the through hole of the gun rod, locking nuts are arranged in the locking through holes, metal pressure rods are inserted into the gun case above and below the locking nuts and embedded into pits on the upper end surface and the lower end surface of the locking nuts to prevent the locking nuts from sliding out, and the locking nuts are internally threaded with locking screws to lock the gun rod in the gun case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010644860.4A CN111730175A (en) | 2020-07-07 | 2020-07-07 | Dual-purpose double-wire welding gun for gas shield welding and submerged arc welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010644860.4A CN111730175A (en) | 2020-07-07 | 2020-07-07 | Dual-purpose double-wire welding gun for gas shield welding and submerged arc welding |
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| Publication Number | Publication Date |
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| CN111730175A true CN111730175A (en) | 2020-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010644860.4A Pending CN111730175A (en) | 2020-07-07 | 2020-07-07 | Dual-purpose double-wire welding gun for gas shield welding and submerged arc welding |
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| CN (1) | CN111730175A (en) |
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