CN116967641A - Welding device and welding method for circumferential weld of tank body of aluminum alloy powder tank truck - Google Patents
Welding device and welding method for circumferential weld of tank body of aluminum alloy powder tank truck Download PDFInfo
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- CN116967641A CN116967641A CN202310776634.5A CN202310776634A CN116967641A CN 116967641 A CN116967641 A CN 116967641A CN 202310776634 A CN202310776634 A CN 202310776634A CN 116967641 A CN116967641 A CN 116967641A
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- 238000003466 welding Methods 0.000 title claims abstract description 304
- 239000000843 powder Substances 0.000 title claims abstract description 34
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 28
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 126
- 238000005498 polishing Methods 0.000 claims abstract description 69
- 229910052786 argon Inorganic materials 0.000 claims abstract description 63
- 230000007246 mechanism Effects 0.000 claims abstract description 55
- 230000033001 locomotion Effects 0.000 claims abstract description 38
- 238000009434 installation Methods 0.000 claims description 18
- 238000012544 monitoring process Methods 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 12
- 230000001174 ascending effect Effects 0.000 claims description 9
- 238000000429 assembly Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 230000008569 process Effects 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000001934 delay Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Classifications
-
- 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
- B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
- B23K28/02—Combined welding or cutting procedures or apparatus
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Arc Welding In General (AREA)
Abstract
The invention relates to a welding device and a welding method for a circumferential weld of a tank body of an aluminum alloy powder tank truck, wherein the welding device comprises a fixed seat, a base, a movable seat and a roller frame mechanism, the fixed seat and the movable seat drive a shell ring end clamp and a shell head end clamp to rotate respectively through a rotary motor and a rotary support, a traversing mechanism is arranged at the bottom of the movable seat in a matched mode, the movable seat makes linear motion close to or far from the fixed seat through the traversing mechanism, a welding mechanical arm is arranged at the top of the base in a matched mode, the welding mechanical arm is provided with a rotary mechanical arm, and a plasma welding unit, a polishing unit and an argon arc welding unit are sequentially arranged at the working end of the rotary mechanical arm in a matched mode from top to bottom. By arranging the welding device, a full-automatic production mode is adopted to replace manual work, so that the welding does not need to depend on the technical level of operators, the production efficiency can be effectively improved, and the labor cost is reduced; meanwhile, the welding method can effectively improve the welding precision, ensure the welding quality and ensure that the welded products are consistent.
Description
Technical Field
The invention relates to the technical field of aluminum alloy tank truck production equipment, in particular to a device and a method for welding circumferential welds of a tank body of an aluminum alloy powder tank truck.
Background
The aluminum alloy powder tank truck is a powder material transport vehicle, and the aluminum alloy tank body used by the aluminum alloy powder tank truck has light dead weight, low residual rate and wide application prospect. In the production process of the aluminum alloy tank truck, the welding of the sealing head of the tank body of the powder tank truck and the cylinder section, and the circular seam between the cylinder section and the cylinder section is a necessary procedure.
In the prior art, a manual welding mode is adopted to carry out girth welding on a tank body, and the method comprises two steps of backing welding and welding cover surface: firstly, two operators respectively use argon arc welding guns inside and outside the tank body to weld the girth weld at the same time, and then a welding machine special for welding is used for welding the external surface of the girth weld to weld the cover surface of the girth weld. The manual production efficiency is low, the required welding time is long, and the labor intensity of operators is high; meanwhile, the welding quality of the girth weld depends on the technical level of operators, and the welding quality cannot be ensured.
Disclosure of Invention
Aiming at the defects in the prior art, the inventor provides a welding device and a welding method for the girth weld of the tank body of the aluminum alloy powder tank truck, and the welding of the girth weld of the tank body of the powder tank truck can be automatically finished at one time by arranging a plasma welding unit, a polishing unit and an argon arc welding unit, so that the labor intensity of operators can be effectively reduced, the production efficiency is improved, and the production time is saved; meanwhile, the welded weld joint is good in consistency, flat and firm, and the dependence on the technical level of operators can be effectively reduced, so that the production quality is effectively ensured.
The technical scheme adopted by the invention is as follows:
the utility model provides an aluminum alloy powder tank car jar body girth weld welding set, includes fixing base, removes seat and gyro wheel frame mechanism, and the inside of fixing base and removal seat is all fixed with the rotation motor, and the output of single rotation motor passes through the gear and the cooperation is installed with the slewing bearing, and a slewing bearing is installed on the outer wall surface of fixing base, and simultaneously the cooperation is installed shell ring end anchor clamps on the terminal surface, and another slewing bearing is installed on the outer wall surface of removing the seat, simultaneously the cooperation is installed the plug end anchor clamps on the terminal surface; the bottom of the movable seat is provided with a transverse moving mechanism in a matching way, the movable seat makes linear motion close to or far from the fixed seat through the transverse moving mechanism, so as to clamp tank sub-assemblies with various lengths, and one side of the transverse moving mechanism is provided with a lifting roller frame mechanism; the welding mechanical arm is arranged at the top of the base in a matched mode, a rotating mechanical arm capable of rotating around an installation center is arranged on the welding mechanical arm, a plasma welding unit, a polishing unit and an argon arc welding unit are arranged at the working end of the rotating mechanical arm in a matched mode from top to bottom in sequence, the plasma welding unit is used for backing welding of the girth weld on the side wall surface of the tank body assembly, the polishing unit is used for polishing the girth weld on the side wall surface of the tank body assembly after the plasma welding unit is used for welding, and the argon arc welding unit is used for welding the cover surface of the girth weld on the side wall surface of the tank body assembly; the cylinder section end clamp is provided with a first adjusting motor, the first adjusting motor drives the cylinder section end clamp to do ascending or descending linear motion along the vertical direction, and the cylinder section end clamp is also provided with a roller for supporting the tank body sub-assembly; the end socket end clamp is provided with a second adjusting motor, and the second adjusting motor drives the end socket end clamp to do ascending or descending rectilinear motion along the vertical direction; when the welding machine works, the shell ring end clamp and the end socket end clamp simultaneously clamp the tank body sub-assembly, and the tank body sub-assembly is driven to rotate through the rotary motor and the rotary support, so that the welding mechanical arm welds a plurality of girth welds on the side wall of the tank body sub-assembly.
As a further improvement of the above technical scheme:
the welding mechanical arm has the structure that: the automatic wire filling machine comprises a rotary mechanical arm, wherein a first wire filling machine is installed at the top of the rotary mechanical arm in a matched manner, a mounting frame is installed at the working end of the rotary mechanical arm in a matched manner, a first mounting bracket, a second mounting bracket and a third mounting bracket are installed on the front surface of the mounting frame at intervals from top to bottom in sequence, an inclined surface mounting seat is installed at the end of the first mounting bracket in a matched manner, a plasma welding unit is obliquely installed at the end of the first mounting bracket through the inclined surface mounting seat, a polishing unit is installed at the top of the second mounting bracket in a matched manner, an argon arc welding unit is installed at the top of the third mounting bracket in a matched manner, and a second wire filling machine is installed at the back surface of the mounting frame in a matched manner; the structure of the plasma welding unit is as follows: the plasma welding device comprises a first sliding table fixed on the inclined surface of an inclined surface mounting seat, wherein the first sliding table is matched with a first guide block, the top of the first guide block is matched with a second sliding table which is vertically arranged with the first sliding table, the second sliding table is matched with the second guide block, the top of the second guide block is matched with a first mounting seat, the top of the first mounting seat is matched with a third sliding table which is vertically arranged with the inclined surface of the inclined surface mounting seat, the third sliding table is matched with the third guide block, the top of the third guide block is matched with a plasma welding gun, the plasma welding gun is connected with a first wire filling machine through a first wire feeding pipe, the top of the first mounting seat is also matched with a laser tracking sensor and a first monitoring camera, and the laser tracking sensor and the first monitoring camera are positioned right above a gun head of the plasma welding gun; the first sliding table drives the first guide block to drive the second sliding table to do reciprocating linear motion along the length direction of the inclined surface mounting seat, the second sliding table drives the second guide block to drive the first mounting seat to do reciprocating linear motion along the length direction perpendicular to the inclined surface of the mounting seat, and the third sliding table drives the third guide block to drive the plasma welding gun to do reciprocating linear motion along the direction perpendicular to the inclined surface of the inclined surface mounting seat, so that the plasma welding gun welds the girth weld on the side wall of the tank assembly; the polishing unit has the structure that: the X-axis sliding table is fixed at the top of the second mounting bracket, the first X-axis sliding table is mounted in a matched mode with the first X-axis guide block, a first Y-axis sliding table which is perpendicular to the first X-axis sliding table is mounted at the top of the first X-axis guide block in a matched mode, the first Y-axis sliding table is mounted in a matched mode with the first Y-axis guide block, and a polishing head for polishing a girth weld is mounted at the top of the first Y-axis sliding table in a matched mode through the second mounting seat; the first X-axis sliding table drives the first X-axis guide block to drive the first Y-axis sliding table to do reciprocating linear motion along the length direction perpendicular to the second mounting bracket, and the first Y-axis sliding table drives the polishing head to do reciprocating linear motion along the length direction of the second mounting bracket through the first Y-axis guide block, so that the polishing head polishes the girth weld on the side wall of the tank body sub-assembly; the argon arc welding unit has the structure that: the argon arc welding device comprises a first X-axis sliding table fixed at the top of a first mounting bracket, wherein the first X-axis sliding table is matched with a first X-axis guide block, a first Y-axis sliding table which is vertical to the first X-axis sliding table is matched with the top of the first X-axis guide block, the first Y-axis sliding table is matched with the first Y-axis guide block, a first mounting seat is matched with the top of the first Y-axis guide block, an argon arc welding gun and a first monitoring camera are matched and mounted at the top of the first mounting seat, and the first monitoring camera is positioned right above the gun head of the argon arc welding gun and is connected with a first wire filling machine through a first wire feeding pipe; the second X-axis sliding table drives the second X-axis guide block to drive the second Y-axis sliding table to do reciprocating rectilinear motion along the length direction perpendicular to the third mounting bracket, and the second Y-axis sliding table drives the argon arc welding gun to do reciprocating rectilinear motion along the length direction of the third mounting bracket through the second Y-axis guide block, so that the argon arc welding gun covers the girth weld on the side wall of the tank body subassembly.
The shell ring end clamp has the structure that: the device comprises a first connecting plate which is matched with a slewing bearing arranged on a fixed seat, wherein a plurality of first adjusting sliding blocks are arranged on the front surface of the first connecting plate in a matched manner, the first adjusting sliding blocks are matched with a plurality of first adjusting sliding rails which are arranged on the back surface of a first connecting frame in a parallel manner, a first adjusting motor is fixed on the top of the first connecting plate, the output end of the first adjusting motor is connected with a first screw rod, a first connecting seat is arranged on the outer circumferential surface of the first screw rod in a matched manner, the first connecting seat is fixed with the first connecting frame, and the first adjusting motor drives the first connecting seat to do linear motion along the first screw rod through the first screw rod, so that the first connecting frame is driven to do linear motion along the first adjusting sliding rails; the front surface of the first connecting frame is fixedly provided with a first disc, the circular surface of the first disc is uniformly provided with a plurality of expansion block sliding rails along the circumference, a single expansion block sliding rail is matched with an expansion block base through a plurality of expansion block sliding blocks, the expansion block sliding blocks are arranged at the bottom of the expansion block base, the top of the single expansion block base is matched with an inner expansion block assembly, the front surface of the first disc is concentrically provided with a second disc, the middle part of the second disc is provided with a plurality of first arc grooves, a cylinder mounting seat is arranged in the single first arc groove, each cylinder mounting seat is matched with a rotary cylinder, the output end of each rotary cylinder is connected with the second disc, a plurality of second arc grooves are uniformly arranged along the circumference of the second disc, a single fixed shaft is arranged in the single second arc groove, and is correspondingly arranged with the single expansion block base, and the rotary cylinder drives the second disc to rotate through the first arc grooves, so that the fixed shaft slides in the second arc grooves and is converted into the radial linear motion of the expansion block assembly along the first disc; a plurality of stop blocks are uniformly arranged on the circular surface of the first disc along the circumference, and extend out of the first disc along the radial direction; the circular surface of the first disc is provided with symmetrically arranged brackets, a single bracket rotates to install rollers, and the two rollers are used for rotatably supporting the tank body sub-assembly.
The structure of the single expansion block component is as follows: the U-shaped seat is matched with the expansion block base through a flat key, a plurality of threaded holes are formed in the middle of the U-shaped seat, a pin is arranged in each threaded hole, the U-shaped seat is locked at the top of the expansion block base through the pin, and a first expansion block group and a second expansion block group are symmetrically arranged on the outer side wall of the U-shaped seat; the first expansion block group and the second expansion block group correspond to the shape of the inner side wall of the cylinder section of the tank body sub-assembly, and the volume of the tank body sub-assembly expanded by the first expansion block group is larger than that of the tank body sub-assembly expanded by the second expansion block group.
The structure of the end socket end clamp is as follows: the device comprises a second connecting plate which is matched and installed with a slewing bearing installed on a movable seat, wherein a second connecting frame is fixedly installed on the front surface of the second connecting plate, a second adjusting motor is fixed at the bottom of the second connecting frame, the output end of the second adjusting motor is connected with a second screw rod, a second connecting seat is installed on the outer circumferential surface of the second screw rod, the second connecting seat is fixed with a clamp installation seat, a plurality of second adjusting sliding rails which are arranged in parallel are matched and installed on the front surface of the second connecting frame, a second adjusting sliding block is installed on the single second adjusting sliding rail in a matched mode, the second adjusting sliding block is fixedly installed on the back surface of the clamp installation seat, and the second adjusting motor drives the second connecting seat to do linear motion along the axial direction of the second screw rod through the second screw rod so as to drive the clamp installation seat to do linear motion along the second adjusting sliding rail; the front surface of the fixture mounting seat is provided with symmetrically arranged profiling mounting frames in a matched mode, two end heads of a single profiling mounting frame are provided with symmetrically arranged profiling blocks in a matched mode, and working surfaces of the four profiling blocks correspond to the shape of the outer side wall of the tank sub-assembly sealing head; the clamping motor drives the two third connecting seats to do opposite or separate linear motion respectively through the two clamping screw rods, thereby driving the two profiling mounting frames to do opposite or separate linear motion along the clamping slide rail, and further enabling the profiling blocks to clamp or loosen the sealing head of the tank body split assembly.
The structure of the traversing mechanism is as follows: including the sideslip base, the top parallel arrangement of sideslip base has several sideslip slide rail, and the cooperation of single sideslip slide rail installs several sideslip slider, and the top installation of sideslip slider removes the seat, fixed sideslip motor on the removal seat, the sideslip gear is connected to the output of sideslip motor, sideslip gear and sideslip rack meshing installation, sideslip rack is installed at the top of sideslip base to be located between the sideslip slide rail, the sideslip motor is through sideslip gear and sideslip rack drive removal seat along the sideslip slide rail rectilinear motion.
The roller frame mechanism has the structure that: the lifting motor drives the two transmission shafts to rotate simultaneously through the steering gear, so that the two lifting connection seats are driven to do ascending or descending rectilinear motion simultaneously through the two lifters; the top of two connecting seats that lift installs the gyro wheel mounting panel simultaneously, symmetrical arrangement's gyro wheel mount pad is installed at the top of gyro wheel mounting panel, and the outside fixed gyro wheel motor of single gyro wheel mount pad, the output of single gyro wheel motor pass the lateral wall of gyro wheel mount pad and install the inside backing roll of gyro wheel mount pad and be connected, gyro wheel motor drive backing roll is rotatory to drive the jar body subassembly rotation between two backing rolls.
An operation table, a laser tracking control cabinet and a plasma generating mechanism are arranged beside the base.
A method for welding circumferential welds of a tank body of an aluminum alloy powder tank truck comprises the following steps:
s1, placing a tank body sub-assembly on a roller frame mechanism and a roller;
s2, the movable seat drives the end socket end clamp to be close to the end socket of the tank body sub-assembly through the transverse moving mechanism;
s3, after the end socket clamp moves in place, clamping the end socket of the tank body sub-assembly, and then the shell ring end clamp tightly expands the shell ring end of the tank body sub-assembly so as to clamp the tank body sub-assembly;
s4, a welding mechanical arm is close to the tank body sub-assembly and points to a circumferential weld position between an end socket and an upper cylindrical shell of the tank body sub-assembly, then the roller frame mechanism descends, and two rotary motors respectively drive the cylindrical shell end clamp and the end socket end clamp to rotate through two slewing bearings so as to drive the tank body sub-assembly to rotate, and the welding mechanical arm welds the circumferential weld between the end socket and the upper cylindrical shell of the tank body sub-assembly;
after the first girth weld is welded, the first adjusting motor drives the shell ring end clamp to descend along the vertical direction, and the second adjusting motor drives the end socket end clamp to descend along the vertical direction, so that the center of the girth weld between the upper shell ring and the lower shell ring of the tank body sub-assembly coincides with the rotation centers of the shell ring end clamp and the end socket end clamp;
The welding mechanical arm is close to the position of the girth joint between the upper cylindrical shell section and the lower cylindrical shell section of the tank body sub-assembly, and the cylindrical shell section end clamp and the end socket end clamp drive the tank body sub-assembly to rotate;
s5, after welding is finished, the welding mechanical arm returns to the original position, the shell ring end clamp and the end socket end clamp rotate to the original position, and the roller frame mechanism ascends to support the tank body sub-assembly;
s6, conveying the tank sub-assembly to the next working procedure.
When the welding mechanical arm welds one girth weld on the tank body subassembly, the welding mechanical arm comprises the following steps:
s4.1, rotating the mechanical arm to drive the plasma welding unit, the polishing unit and the argon arc welding unit to reach a target position;
s4.2, adjusting the plasma welding unit to reach an arc starting point;
s4.3, performing plasma welding on the tank sub-assembly through a plasma welding unit, and enabling the plasma welding unit to delay at each working point for a specified time so as to dissolve out the girth weld of the tank sub-assembly;
s4.4, adjusting the polishing unit to be always clung to the girth weld of the tank sub-assembly, and polishing the girth weld of the tank sub-assembly by the polishing unit after the girth weld welded by the plasma reaches the specified weld length;
S4.5, arc filling pits are received by the plasma welding unit, and plasma welding is completed;
s4.6, stopping polishing by the polishing unit;
s4.7, before plasma welding is completed, adjusting the argon arc welding unit in place, and after the plasma welding is completed, starting welding by the argon arc welding unit;
s4.8, after the argon arc welding unit covers the circumferential weld welded by the plasma welding unit for one circle, and when the circumferential weld is overlapped with the starting welding point of the argon arc welding unit by 10mm, the shell ring end clamp and the shell head end clamp stop rotating, and the argon arc welding unit receives an arc and fills an arc pit, so that the welding is completed.
The beneficial effects of the invention are as follows:
the invention has compact and reasonable structure and convenient operation, and adopts a full-automatic production mode to replace manual work by arranging the welding device, so that the welding does not need to depend on the technical level of operators, thereby effectively improving the production efficiency, saving the production time and reducing the labor cost; meanwhile, the welding method is convenient to operate and has a tracking feedback function, so that the welding precision can be effectively improved, the welding quality is ensured, and the welded products are consistent.
The invention also has the following advantages:
(1) According to the invention, the automatic welding of the girth weld can be realized by arranging the welding mechanical arm, wherein the plasma welding unit is used for welding and bottoming, the polishing unit is used for removing oxides on the surface of the girth weld after plasma welding, and the argon arc welding unit is used for welding the cover surface, so that the smoothness and firmness of the weld can be ensured.
(2) According to the invention, the shell ring end clamp and the end socket end clamp are arranged, so that the tank body sub-assembly can be driven to rotate, and meanwhile, the shell ring end clamp and the end socket end clamp have lifting functions, so that the rotation centers of different girth welds on the side wall of the tank body sub-assembly are always consistent with the rotation centers of the clamps, and the welding quality is ensured.
(3) According to the invention, the expansion block assembly and the transverse moving mechanism which can be quickly disassembled and replaced are arranged, so that the welding device can be suitable for tank body sub-assemblies with various specifications, and the product adaptability of the welding device is improved.
(4) According to the invention, the working positions of the welding gun and the polishing head are tracked and fed back by arranging the monitoring camera and the laser tracking sensor, so that the welding precision is ensured, and the welding quality is improved.
(5) The welding device has the advantages of compact structure, reasonable layout, small occupied area and low requirement on the installation environment.
(6) The welding method is reasonable in arrangement and simple in operation, and can effectively improve the welding quality and ensure the connection reliability of the aluminum alloy powder tank truck tank body by adopting a welding mode of combining plasma welding and argon arc welding; meanwhile, the polishing head polishes oxides on the surface of the plasma welding seam, so that the welding quality is further improved, and the welding seam can be ensured to be smooth and firm.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a schematic structural view of a welding station in the present invention.
Fig. 4 is a schematic structural view of a plasma welding unit according to the present invention.
Fig. 5 is an exploded view of the plasma welding unit of the present invention.
Fig. 6 is a schematic structural view of a polishing unit and an argon arc welding unit in the present invention.
Fig. 7 is a front view of a stationary clamping station in accordance with the present invention.
Fig. 8 is a schematic structural view of a shell ring end clamp according to the present invention.
Fig. 9 is a partial enlarged view at a in fig. 8.
Fig. 10 is an exploded view of fig. 8.
Fig. 11 is a front view of a mobile clamping station in accordance with the present invention.
Fig. 12 is a side view of a mobile clamping station in accordance with the present invention.
Fig. 13 is a schematic structural view of a head end fixture according to the present invention.
Fig. 14 is an exploded view of fig. 13.
Fig. 15 is a schematic structural view of a roller frame mechanism in the present invention.
Fig. 16 is a schematic view of the present invention in an operating state.
Wherein: 1. a fixing seat; 2. a shell ring end clamp; 3. welding a mechanical arm; 4. a base; 5. a movable seat; 6. a seal head end clamp; 7. a slewing bearing; 8. a rotary motor; 9. a traversing mechanism; 10. an operation table; 11. a laser tracking control cabinet; 12. a roller frame mechanism; 13. a plasma generating mechanism; 14. a tank sub-assembly;
201. A first connection plate; 202. a first adjustment slide; 203. a first adjustment slide; 204. a first connection frame; 205. a first adjustment motor; 206. a first connection base; 207. a first disc; 208. a second disc; 209. a tensioning block sliding rail; 210. a block expansion slide block; 211. a swelling block base; 212. an expansion block assembly; 213. the first expansion block group; 214. the second expansion block group; 215. a U-shaped seat; 216. a flat key; 217. a pin; 218. a first arc-shaped groove; 219. a rotary cylinder; 220. a stop block; 221. a bracket; 222. a roller; 223. a second arc-shaped groove; 224. a fixed shaft;
301. rotating the mechanical arm; 302. a mounting frame; 303. a first mounting bracket; 304. a second mounting bracket; 305. a third mounting bracket; 306. a first mount; 307. a first sliding table; 308. a second sliding table; 309. a third sliding table; 310. a first guide block; 311. a second guide block; 312. a third guide block; 313. a plasma welding gun; 314. a first wire feed pipe; 315. a laser tracking sensor; 316. a first monitoring camera; 317. a first X-axis sliding table; 318. a first Y-axis sliding table; 319. a first X-axis guide block; 320. a first Y-axis guide block; 321. a second mounting base; 322. polishing head; 323. a second X-axis sliding table; 324. a second Y-axis sliding table; 325. a second X-axis guide block; 326. a second Y-axis guide block; 327. a third mount; 328. argon arc welding gun; 329. a second wire feeding pipe; 330. a second monitoring camera; 331. a first wire filling machine; 332. a second wire filling machine;
601. A second connecting plate; 602. a second adjustment slider; 603. the second adjusting slide rail; 604. a second connecting frame; 605. a second adjustment motor; 606. a second connecting seat; 607. a clamp mounting seat; 608. clamping the sliding rail; 609. clamping a sliding block; 610. clamping a motor; 611. a third connecting seat; 612. profiling mounting frame; 613. profiling blocks;
901. traversing the base; 902. a traversing motor; 903. a traversing slide rail; 904. a traversing slide block; 905. a traversing gear; 906. a transverse moving rack;
1201. a support base; 1202. lifting a motor; 1203. a transmission shaft; 1204. a lifter; 1205. a guide post; 1206. lifting the connecting seat; 1207. a roller mounting plate; 1208. a roller motor; 1209. supporting rollers; 1210. a roller mounting seat;
1301. a plasma power supply; 1302. a plasma water cooler; 1303. a plasma generator.
Detailed Description
The following describes specific embodiments of the present invention with reference to the drawings.
Embodiment one:
the structure and function of this embodiment are as follows:
as shown in fig. 1-16, the welding device for the circumferential weld of the tank body of the aluminum alloy powder tank truck in the embodiment comprises a fixed seat 1, a base 4, a movable seat 5 and a roller frame mechanism 12, wherein rotary motors 8 are fixed in the fixed seat 1 and the movable seat 5, the output ends of the single rotary motor 8 are matched and installed with rotary supports 7 through gears, one rotary support 7 is installed on the outer wall surface of the fixed seat 1, a shell ring end clamp 2 is matched and installed on the end surface, the other rotary support 7 is installed on the outer wall surface of the movable seat 5, and a seal end clamp 6 is matched and installed on the end surface; the bottom of the movable seat 5 is provided with a traversing mechanism 9 in a matching way, the movable seat 5 moves linearly close to or far away from the fixed seat 1 through the traversing mechanism 9, so as to clamp tank sub-assemblies 14 with various lengths, and one side of the traversing mechanism 9 is provided with a lifting roller frame mechanism 12; the top of the base 4 is provided with a welding mechanical arm 3 in a matching way, the welding mechanical arm 3 is provided with a rotating mechanical arm 301 which can rotate around a mounting center, the working end of the rotating mechanical arm 301 is provided with a plasma welding unit, a polishing unit and an argon arc welding unit in a matching way from top to bottom in sequence, the plasma welding unit carries out backing welding on the girth weld on the side wall surface of the tank body subassembly 14, the polishing unit polishes the girth weld on the side wall surface of the tank body subassembly 14 after welding by the plasma welding unit, and the argon arc welding unit carries out welding cover surface on the girth weld on the side wall surface of the tank body subassembly 14; the shell ring end clamp 2 is provided with a first adjusting motor 205, the first adjusting motor 205 drives the shell ring end clamp 2 to do ascending or descending linear motion along the vertical direction, and the shell ring end clamp 2 is also provided with a roller 222 for supporting the tank body sub-assembly 14; the second adjusting motor 605 is arranged on the end socket clamp 6, and the second adjusting motor 605 drives the end socket clamp 6 to do ascending or descending linear motion along the vertical direction; when the welding machine works, the shell ring end clamp 2 and the shell head end clamp 6 simultaneously clamp the tank body sub-assembly 14 and drive the tank body sub-assembly 14 to rotate through the rotary motor 8 and the rotary support 7, so that the welding mechanical arm 3 welds a plurality of girth welds on the side wall of the tank body sub-assembly 14. Through setting a fixed clamping station and a movable clamping station, the tank body subassembly 14 is clamped and driven to rotate, the positions of the welding mechanical arms 3 are relatively fixed, so that a girth weld on the side wall of the tank body subassembly 14 rotates around the rotation center of the shell ring end clamp 2 and the shell head end clamp 6, and the welding of the girth weld can be completed after one rotation is completed; the roller frame mechanism 12 and the roller 222 are used for supporting upper and lower parts of the tank sub-assembly 14: the roller frame mechanism 12 ascends when the workpiece is loaded, contacts with the tank body sub-assembly 14 and drives the tank body sub-assembly to rotate so as to adjust the angle of the workpiece; when the welding work is started, the roller frame mechanism 12 descends and is separated from the tank body subassembly 14, so that the tank body subassembly 14 is ensured not to interfere with the roller frame mechanism 12 in the process of being driven to rotate by the clamp.
The fixed clamping station comprises a fixed seat 1, a shell ring end clamp 2, a slewing bearing 7 and a slewing motor 8, and is used for clamping the shell ring end of the tank body sub-assembly 14; the movable clamping station comprises a movable seat 5, a seal head end clamp 6, a slewing bearing 7, a slewing motor 8 and a traversing mechanism 9 and is used for clamping the seal head end of the tank body sub-assembly 14, and meanwhile, the movable seat 5 can do horizontal linear motion through the traversing mechanism 9 so as to match tank body sub-assemblies 14 with various lengths.
The welding mechanical arm 3 has the structure that: including rotary mechanical arm 301, first filler 331 is installed to rotary mechanical arm 301's top cooperation, and installing frame 302 is installed to rotary mechanical arm 301's work end cooperation, and first installing support 303, second installing support 304 and third installing support 305 are installed from top to bottom in proper order at the front of installing frame 302 interval, and the end cooperation installation of first installing support 303 is provided with the inclined plane mount pad of inclined plane, and plasma welding unit is installed at the end of first installing support 303 through the inclined plane mount pad slope, and the polishing unit is installed to the top cooperation of second installing support 304, and argon arc welding unit is installed to the top cooperation of third installing support 305, and second filler 332 is installed to the back cooperation of installing frame 302. The welding mechanical arm 3 is used for girth welding, the plasma welding unit is used for welding bottoming, the polishing unit is used for removing oxides on the surface of the girth welding after plasma welding, and the argon arc welding unit is used for welding a cover surface.
The structure of the plasma welding unit is as follows: the device comprises a first sliding table 307 fixed on the inclined surface of an inclined surface mounting seat, wherein the first sliding table 307 is matched with a first guide block 310, the top of the first guide block 310 is matched with a second sliding table 308 which is vertically arranged with the first sliding table 307, the second sliding table 308 is matched with a second guide block 311, the top of the second guide block 311 is matched with a first mounting seat 306, the top of the first mounting seat 306 is matched with a third sliding table 309 which is vertically arranged with the inclined surface of the inclined surface mounting seat, the third sliding table 309 is matched with a third guide block 312, the top of the third guide block 312 is matched with a plasma welding gun 313, the plasma welding gun 313 is connected with a first wire filling machine 331 through a first wire feeding pipe 314, the top of the first mounting seat 306 is also matched with a laser tracking sensor 315 and a first monitoring camera 316, and the laser tracking sensor 315 and the first monitoring camera 316 are positioned right above the gun head of the plasma welding gun 313; the first sliding table 307 drives the first guide block 310 to drive the second sliding table 308 to reciprocate linearly along the length direction of the inclined surface mounting seat, the second sliding table 308 drives the second guide block 311 to drive the first mounting seat 306 to reciprocate linearly along the length direction perpendicular to the inclined surface of the mounting seat, and the third sliding table 309 drives the third guide block 312 to drive the plasma welding gun 313 to reciprocate linearly along the direction perpendicular to the inclined surface of the inclined surface mounting seat, so that the plasma welding gun 313 welds the girth weld on the side wall of the tank assembly 14. In the welding process, the girth weld is automatically tracked by the laser tracking sensor 315, the deviation value of the horizontal direction and the vertical direction is transmitted to the sliding tables in all directions, and the deviation between the plasma welding gun 313 and the girth weld is automatically compensated.
The structure of the polishing unit is as follows: the polishing device comprises a first X-axis sliding table 317 fixed at the top of a second mounting bracket 304, wherein the first X-axis sliding table 317 is matched with a first X-axis guide block 319, a first Y-axis sliding table 318 which is arranged perpendicular to the first X-axis sliding table 317 is matched and mounted at the top of the first X-axis guide block 319, the first Y-axis sliding table 318 is matched and mounted with a first Y-axis guide block 320, and a polishing head 322 for polishing a girth weld is matched and mounted at the top of the first Y-axis sliding table 318 through a second mounting seat 321; the first X-axis sliding table 317 drives the first X-axis guide block 319 to drive the first Y-axis sliding table 318 to reciprocate linearly along the length direction perpendicular to the second mounting bracket 304, and the first Y-axis sliding table 318 drives the polishing head 322 to reciprocate linearly along the length direction of the second mounting bracket 304 through the first Y-axis guide block 320, so that the polishing head 322 polishes the girth weld on the side wall of the tank assembly 14. The polishing head 322 is matched and installed with the second installation seat 321 through a floating installation mechanism, and the structure of the floating installation mechanism is as follows: the polishing device comprises a floating seat which is matched and installed with a second installation seat 321 through a spring plunger, a polishing head 322 is installed on the floating seat, and a floating sliding rail and a floating sliding block are arranged between the floating seat and the second installation seat 321, so that the polishing head 322 can compensate the surface shape error of a girth weld; the surface of the polishing head 322 is provided with a steel wire brush, the steel wire brush is required to be clung to the girth weld during working, the polishing head 322 is connected with an external air source, and the steel wire brush on the surface is driven to rotate to polish the girth weld; in the working process of the polishing head 322, the first X-axis sliding table 317 delays to acquire the displacement parameter of the first sliding table 307, so that the polishing head 322 can always polish the girth weld.
The argon arc welding unit has the structure that: the argon arc welding device comprises a second X-axis sliding table 323 fixed at the top of a third mounting bracket 305, wherein the second X-axis sliding table 323 is matched with a second X-axis guide block 325, a second Y-axis sliding table 324 which is perpendicular to the second X-axis sliding table 323 is matched with the top of the second X-axis guide block 325, the second Y-axis sliding table 324 is matched with a second Y-axis guide block 326, a third mounting seat 327 is matched with the top of the second Y-axis guide block 326, an argon arc welding gun 328 and a second monitoring camera 330 are matched with the top of the third mounting seat 327, the second monitoring camera 330 is positioned right above the gun head of the argon arc welding gun 328, and the argon arc welding gun 328 is connected with a second wire filling machine 332 through a second wire feeding pipe 329; the second X-axis sliding table 323 drives the second X-axis guiding block 325 to drive the second Y-axis sliding table 324 to reciprocate linearly along the length direction perpendicular to the third mounting bracket 305, and the second Y-axis sliding table 324 drives the argon arc welding gun 328 to reciprocate linearly along the length direction of the third mounting bracket 305 through the second Y-axis guiding block 326, so that the argon arc welding gun 328 covers the circumferential weld on the side wall of the tank assembly 14. In the working process, the second X-axis sliding table 323 acquires the displacement parameters of the first sliding table 307 through time delay, so that automatic compensation of X-direction deviation of the argon arc welding gun 328 and the girth weld is realized, and the height direction of the argon arc welding gun 328 and the girth weld is automatically adjusted through arc pressure tracking.
The length direction of the second mounting bracket 304 and the third mounting bracket 305 is parallel to the radial direction of the tank subassembly 14 and perpendicular to the axial direction of the tank subassembly 14.
The structure of the shell ring end clamp 2 is as follows: the device comprises a first connecting plate 201 which is matched with a slewing bearing 7 arranged on a fixed seat 1, wherein the front surface of the first connecting plate 201 is matched with a plurality of first adjusting sliding blocks 202, the first adjusting sliding blocks 202 are matched with a plurality of first adjusting sliding rails 203 which are arranged on the back surface of a first connecting frame 204 in parallel, a first adjusting motor 205 is fixed on the top of the first connecting plate 201, the output end of the first adjusting motor 205 is connected with a first screw rod, a first connecting seat 206 is matched and arranged on the outer circumferential surface of the first screw rod, the first connecting seat 206 is fixed with the first connecting frame 204, and the first adjusting motor 205 drives the first connecting seat 206 to linearly move along the first screw rod through the first screw rod, so that the first connecting frame 204 is driven to linearly move along the first adjusting sliding rails 203; the front surface of the first connecting frame 204 is fixedly provided with a first disc 207, the circular surface of the first disc 207 is uniformly provided with a plurality of expansion block sliding rails 209 along the circumference, a single expansion block sliding rail 209 is matched and installed with an expansion block base 211 through a plurality of expansion block sliding blocks 210, the expansion block sliding blocks 210 are installed at the bottom of the expansion block base 211, the top of the single expansion block base 211 is matched and installed with an inner expansion block assembly 212, the front surface of the first disc 207 is concentrically provided with a second disc 208, the middle part of the second disc 208 is provided with a plurality of first arc grooves 218, each first arc groove 218 is internally provided with a cylinder installation seat, each cylinder installation seat is matched and installed with a rotary cylinder 219, the output end of each rotary cylinder 219 is connected with the second disc 208, a plurality of second arc grooves 223 are uniformly arranged along the circumference, a single fixed shaft 224 is installed in the second arc grooves 223, the single fixed shaft 224 is correspondingly installed with the single expansion block base 211, and the rotary cylinder 219 drives the second fixed shaft 208 to rotate through the first arc grooves 218, so that the 224 slides in the second arc grooves 223, and then the expansion block assembly 212 moves linearly along the radial direction of the first disc 207; a plurality of stop blocks 220 are uniformly arranged on the circular surface of the first disc 207 along the circumference, and the stop blocks 220 extend out of the first disc 207 along the radial direction; the circular surface of the first disc 207 is provided with symmetrically arranged brackets 221, a single bracket 221 is rotatably provided with rollers 222, and two rollers 222 are used for rotatably supporting the tank sub-assembly 14. The shell ring end clamp 2 clamps a workpiece in an internal expansion block mode, and the rotary cylinder 219 pushes the second disc 208 to drive the expansion block assembly 212 to extend or retract; because the tank sub-assembly 14 is irregularly shaped, the rotation centers of the two girth welds on the side wall of the tank sub-assembly 14 are not on the same axis, when the girth welds are welded, the girth welds are required to be consistent with the rotation centers of the clamps, and the first disc 207 is driven by the first adjusting motor 205 to do linear motion along the first adjusting sliding rail 203, so that the two girth welds on the side wall of the tank sub-assembly 14 are consistent with the rotation centers of the clamps in the welding process, and the welding quality is ensured.
The structure of the single tensioning block assembly 212 is: the device comprises a U-shaped seat 215, wherein the U-shaped seat 215 is matched and installed with a tensioning block base 211 through a flat key 216, a plurality of threaded holes are formed in the middle of the U-shaped seat 215, a pin 217 is installed in a single threaded hole, the pin 217 locks the U-shaped seat 215 on the top of the tensioning block base 211, and a first tensioning block group 213 and a second tensioning block group 214 are symmetrically installed on the outer side wall of the U-shaped seat 215; the first expansion block group 213 and the second expansion block group 214 correspond to the shape of the inner side wall of the cylinder section of the tank body sub-assembly 14, and the volume of the tank body sub-assembly 14 expanded by the first expansion block group 213 is larger than that of the tank body sub-assembly 14 expanded by the second expansion block group 214. In order to adapt to tank body sub-assemblies 14 with different sizes, the expansion block assembly 212 adopts a two-sided quick-change structure, when products with different types are produced, the U-shaped seat 215 is slightly pulled out by unscrewing the pin 217, the cooperation with the flat key 216 is released, the U-shaped seat 215 rotates 180 degrees around the pin 217, and the pin 217 is screwed, so that the quick-change of the first expansion block group 213 and the second expansion block group 214 can be completed, and the tank body sub-assemblies 14 with two specifications can be matched.
The structure of the end-sealing clamp 6 is as follows: the movable seat 5 comprises a second connecting plate 601 which is matched with a slewing bearing 7 arranged on the movable seat 5, a second connecting frame 604 is fixedly arranged on the front surface of the second connecting plate 601, a second adjusting motor 605 is fixed at the bottom of the second connecting frame 604, the output end of the second adjusting motor 605 is connected with a second screw rod, a second connecting seat 606 is arranged on the outer circumferential surface of the second screw rod, the second connecting seat 606 is fixed with a clamp mounting seat 607, a plurality of second adjusting slide rails 603 which are arranged in parallel are matched with the front surface of the second connecting frame 604, a second adjusting slide block 602 is matched with a single second adjusting slide rail 603, the second adjusting slide block 602 is fixedly arranged on the back surface of the clamp mounting seat 607, and the second adjusting motor 605 drives the second connecting seat 606 to do linear motion along the axial direction of the second screw rod through the second screw rod, so as to drive the clamp mounting seat 607 to do linear motion along the second adjusting slide rails 603; the front surface of the clamp mounting seat 607 is matched and provided with symmetrically arranged profiling mounting frames 612, the two ends of a single profiling mounting frame 612 are matched and provided with symmetrically arranged profiling blocks 613, and the working surfaces of the four profiling blocks 613 correspond to the shape of the outer side wall of the sealing head of the tank sub-assembly 14; the single profiling mounting frame 612 is installed with the clamp mounting seat 607 in a matched manner through the clamping slide rail 608 and the clamping slide block 609, the clamping slide rail 608 is symmetrically installed on the outer side wall of the clamp mounting seat 607, the clamping slide block 609 is installed on the profiling mounting frame 612, the clamping motor 610 is fixed in the middle of the clamp mounting seat 607, the output end of the clamping motor 610 is connected with the clamping screw rods which are symmetrically arranged, the outer circumferential surface of the single clamping screw rod is provided with the third connecting seat 611 in a matched manner, the single third connecting seat 611 is connected with the corresponding single profiling mounting frame 612, the clamping motor 610 respectively drives the two third connecting seats 611 to do opposite or opposite linear motions through the two clamping screw rods, so that the two profiling mounting frames 612 are driven to do opposite or opposite linear motions along the clamping slide rail 608, and the profiling block 613 clamps or loosens the sealing head of the tank assembly 14. The profiling block 613 is used for clamping the end socket of the tank body sub-assembly 14, and the output end of the clamping motor 610 is connected with two clamping screw rods with opposite rotation directions through a coupler; when the clamping motor 610 rotates forwards, the profiling mounting frame 612 is driven to move in opposite directions through the third connecting seat 611, so that the four profiling blocks 613 clamp the sealing heads of the tank sub-assembly 14; when the clamping motor 610 rotates reversely, the third connecting seat 611 drives the profiling mounting frame 612 to do a separation motion, so that the four profiling blocks 613 loosen the sealing heads of the tank sub-assembly 14.
The structure of the traversing mechanism 9 is as follows: the device comprises a traversing base 901, a plurality of traversing slide rails 903 are arranged on the top of the traversing base 901 in parallel, a plurality of traversing slide blocks 904 are arranged on the single traversing slide rail 903 in a matched mode, a moving seat 5 is arranged on the top of the traversing slide blocks 904, a traversing motor 902 is fixed on the moving seat 5, an output end of the traversing motor 902 is connected with a traversing gear 905, the traversing gear 905 is meshed with a traversing rack 906, the traversing rack 906 is arranged on the top of the traversing base 901 and located between the traversing slide rails 903, and the traversing motor 902 drives the moving seat 5 to do linear motion along the traversing slide rails 903 through the traversing gear 905 and the traversing rack 906. The two ends of the traversing slide rail 903, the clamping slide rail 608, the first adjusting slide rail 203 and the second adjusting slide rail 603 are respectively provided with an organ cover in a matching way.
The roller frame mechanism 12 has the following structure: the lifting motor 1202 is fixedly arranged at the top of the supporting seat 1201, the output end of the lifting motor 1202 is connected with a steering gear, the steering gear is respectively connected with two lifters 1204 through symmetrically arranged transmission shafts 1203, lifting connection seats 1206 are arranged at the top of a single lifter 1204 in a matched mode, guide posts 1205 are symmetrically arranged at two sides of the single lifter 1204, and the lifting motor 1202 drives the two transmission shafts 1203 to simultaneously rotate through the steering gear, so that the two lifters 1204 simultaneously drive the two lifting connection seats 1206 to do ascending or descending linear motion; the roller mounting plates 1207 are simultaneously mounted on the tops of the two lifting connecting seats 1206, the symmetrically-arranged roller mounting seats 1210 are mounted on the tops of the roller mounting plates 1207, roller motors 1208 are fixed on the outer sides of the single roller mounting seats 1210, the output ends of the single roller motors 1208 penetrate through the side walls of the roller mounting seats 1210 and are connected with supporting rollers 1209 mounted inside the roller mounting seats 1210, and the roller motors 1208 drive the supporting rollers 1209 to rotate, so that the tank assembly 14 between the two supporting rollers 1209 is driven to rotate. The steering gear and the two transmission shafts 1203 are sequentially driven to rotate by the lifting motor 1202, and power is transmitted to the lifter 1204, so that the two lifting connecting seats 1206 are driven to ascend or descend simultaneously, and the roller frame mechanism 12 has a lifting function; the supporting roller 1209 adopts a glue coating wheel, and the roller motor 1208 drives the supporting roller 1209 to rotate, so as to drive the tank sub-assembly 14 to rotate to find a positioning welding spot, and the roller frame mechanism 12 has a rotating function.
An operation table 10, a laser tracking control cabinet 11 and a plasma generating mechanism 13 are arranged beside the base 4. The plasma generating mechanism 13 includes a plasma power supply 1301, a plasma water cooler 1302, and a plasma generator 1303 for driving the plasma welding gun 313; the operation table 10 is used for setting parameters of the welding device during operation and performing manual intervention on the action of the welding device; an argon arc welding power source is provided at one side of the operation table 10 for driving the argon arc welding gun 328.
The embodiment provides an aluminum alloy powder tank car jar body girth weld device, through setting up rotatable shell ring end anchor clamps 2 and head end anchor clamps 6 for jar body subassembly 14 is rotatory, welds the girth weld on the jar body subassembly 14 lateral wall of rotation through setting up welding arm 3, thereby accomplishes the automatic weld of the jar body girth weld of powder tank car, can effectively reduce the cost of labor, improves production efficiency and production quality.
Embodiment two:
the first embodiment provides a method for welding the girth weld of the aluminum alloy powder tank truck tank body by utilizing the welding device for welding the girth weld of the aluminum alloy powder tank truck tank body;
the aluminum alloy powder tank truck comprises two tank body assemblies 14, wherein each tank body assembly 14 sequentially comprises a sealing head, an upper cylinder section and a lower cylinder section, two girth welds are arranged, one girth weld is between the sealing head and the upper cylinder section, and the other girth weld is between the upper cylinder section and the lower cylinder section;
When the girth weld of the single tank body subassembly 14 is welded by utilizing the girth weld welding device of the tank body of the aluminum alloy powder tank truck, the method comprises the following steps:
s1, placing the tank body sub-assembly 14 on a roller frame mechanism 12 and a roller 222;
s2, the movable seat 5 drives the seal end clamp 6 to be close to the seal end of the tank body sub-assembly 14 through the transverse moving mechanism 9;
s3, after the seal head end clamp 6 moves in place, clamping the seal head of the tank body sub-assembly 14, and then the shell ring end clamp 2 tightens the shell ring end of the tank body sub-assembly 14 so as to clamp the tank body sub-assembly 14;
s3.1, a rotary air cylinder 219 extends out to drive a second disc 208 to rotate around a mounting center, so that a fixed shaft 224 slides in a second arc-shaped groove 223, and a tensioning block assembly 212 at the top of a tensioning block base 211 is driven to linearly move along a tensioning block sliding rail 209, and further the tensioning block assembly 212 is used for tensioning a lower cylinder section of the tank body sub-assembly 14;
s4, a welding mechanical arm 3 is close to the tank body sub-assembly 14 and points to a girth joint position between an end socket and an upper cylinder section of the tank body sub-assembly 14, then a roller frame mechanism 12 descends, and two rotary motors 8 respectively drive a cylinder section end clamp 2 and an end socket end clamp 6 to rotate through two slewing bearings 7 so as to drive the tank body sub-assembly 14 to rotate, and the welding mechanical arm 3 welds the girth joint between the end socket and the upper cylinder section of the tank body sub-assembly 14;
After the first girth weld is welded, the first adjusting motor 205 drives the shell ring end clamp 2 to descend along the vertical direction, and the second adjusting motor 605 drives the shell head end clamp 6 to descend along the vertical direction, so that the center of the girth weld between the upper shell ring and the lower shell ring of the tank body subassembly 14 coincides with the rotation centers of the shell ring end clamp 2 and the shell head end clamp 6;
the welding mechanical arm 3 is close to the girth joint between the upper cylinder section and the lower cylinder section of the tank body subassembly 14, and the cylinder section end clamp 2 and the end socket end clamp 6 drive the tank body subassembly 14 to rotate, and the welding mechanical arm 3 welds the girth joint between the upper cylinder section and the lower cylinder section of the tank body subassembly 14;
s4.1, rotating the mechanical arm 301 to drive the plasma welding unit, the polishing unit and the argon arc welding unit to reach target positions;
s4.2, a laser tracking sensor 315 searches for an arc starting point of the girth weld, and positions between the plasma welding gun 313 and the girth weld are adjusted through a first sliding table 307 and a second sliding table 308, so that the plasma welding gun 313 reaches the arc starting point;
s4.3, welding the girth weld by using a plasma welding gun 313, namely, delaying the plasma welding gun 313 at each working point for a specified time to dissolve the girth weld of the tank body subassembly 14, tracking the welding position of the plasma welding gun 313 by using a laser tracking sensor 315, and adjusting a first sliding table 307 to enable the plasma welding gun 313 to be always aligned with the girth weld so as to prevent the plasma welding gun 313 from deviating;
S4.4, enabling a polishing head 322 to be always clung to the circumferential weld of the tank body sub-assembly 14 through a first X-axis sliding table 317 and a first Y-axis sliding table 318, enabling a steel wire brush on the polishing head 322 to rotate after a plasma welding gun 313 reaches a specified circumferential weld length, polishing the circumferential weld, enabling the polishing head 322 to be always aligned to the circumferential weld through adjusting the first X-axis sliding table 317 in a delayed mode, and preventing the polishing head 322 from deviating;
s4.5, after the plasma welding gun 313 is welded for one circle, returning to a welding starting position of the plasma welding gun 313, enabling the plasma welding gun 313 to be static relative to a circumferential weld of the tank body subassembly 14 by enabling the third sliding table 309 to do constant-speed motion opposite to the rotation direction of the tank body subassembly 14, so that the plasma welding gun 313 is enabled to be static relative to an arc-collecting arc-filling pit, when arc collection is carried out, the first wire filling machine 331 stops feeding wires firstly and then the plasma welding gun 313 completely ends arc, and after the specified arc-collecting time is reached, the plasma welding gun 313 is adjusted to return to the original position through the first sliding table 307 and the second sliding table 308;
s4.6, stopping polishing by the polishing head 322 when the arc-receiving position of the plasma welding gun 313 reaches the polishing system position of the polishing head 322;
s4.7, when the position of the girth weld welded by the plasma welding gun 313 is about 15mm away from the argon arc welding gun 328, the argon arc welding gun 328 is adjusted to be in place through the second X-axis sliding table 323 and the second Y-axis sliding table 324, the argon arc welding gun 328 starts welding, the second X-axis sliding table 323 delays to acquire the displacement parameter of the first sliding table 307, and the argon arc welding gun 328 is always aligned with the girth weld through adjusting the second X-axis sliding table 323, so that the argon arc welding gun 328 is prevented from deviating;
S4.8, after the argon arc welding gun 328 covers the circumferential weld welded by the plasma welding gun 313 for one week, and when the circumferential weld is overlapped with the starting welding point of the argon arc welding gun 328 by 10mm, the shell ring end clamp 2 and the shell head end clamp 6 stop rotating, the argon arc welding gun 328 receives an arc and fills an arc pit, and when the arc is received, the second wire filling machine 332 stops feeding wires first and then the argon arc welding gun 328 completely ends the arc;
s5, after welding is finished, the welding mechanical arm 3 returns to the original position, the shell ring end clamp 2 and the shell head end clamp 6 rotate to the original position, and the roller frame mechanism 12 ascends to support the tank body sub-assembly 14;
s6, the tank sub-assembly 14 is then transported to the next process.
The embodiment provides a welding method by utilizing a welding device for the circumferential weld of the tank body of an aluminum alloy powder tank truck, wherein plasma welding is firstly carried out on the circumferential weld on the tank body subassembly 14, then argon arc welding is carried out, and plasma circumferential weld is polished through a polishing head 322 in the plasma welding process, so that the welding of the circumferential weld of the tank body of the aluminum alloy powder tank truck can be completed with high quality; meanwhile, the laser tracking sensor 315 is arranged to track and feed back the welding position and the polishing position, and the sliding table is used for adjusting the welding position of the welding gun and the polishing position of the polishing head 322, so that the welding position and the polishing position are always coincident with the girth weld position of the tank body subassembly 14, the welding precision is improved, the welding quality is ensured, and the consistency of tank body products is improved.
According to the welding device and the welding method for the circumferential weld of the aluminum alloy powder tank truck tank body, the circumferential weld of the aluminum alloy powder tank truck tank body can be efficiently and automatically welded, the labor cost can be effectively reduced, and the production efficiency is improved; meanwhile, the multiple monitoring devices are arranged, so that the welding quality of the girth weld can be effectively ensured, and the welding precision is improved.
The above description is intended to illustrate the invention and not to limit it, the scope of which is defined by the claims, and any modifications can be made within the scope of the invention.
Claims (10)
1. An aluminum alloy powder tank car jar body girth weld welding set, its characterized in that: the device comprises a fixed seat (1), a base (4), a movable seat (5) and a roller frame mechanism (12), wherein rotary motors (8) are fixed in the fixed seat (1) and the movable seat (5), the output end of each rotary motor (8) is matched with a rotary support (7) through a gear, one rotary support (7) is arranged on the outer wall surface of the fixed seat (1), a shell ring end clamp (2) is matched and arranged on the end surface, the other rotary support (7) is arranged on the outer wall surface of the movable seat (5), and a seal end clamp (6) is matched and arranged on the end surface;
the bottom of the movable seat (5) is provided with a transverse moving mechanism (9) in a matching way, the movable seat (5) moves in a straight line close to or far away from the fixed seat (1) through the transverse moving mechanism (9), so as to clamp tank body sub-assemblies (14) with various lengths, and one side of the transverse moving mechanism (9) is provided with a lifting roller frame mechanism (12);
The welding machine comprises a base (4), wherein a welding mechanical arm (3) is arranged at the top of the base in a matched mode, a rotating mechanical arm (301) capable of rotating around an installation center is arranged on the welding mechanical arm (3), a plasma welding unit, a polishing unit and an argon arc welding unit are arranged at the working end of the rotating mechanical arm (301) in a matched mode from top to bottom in sequence, the plasma welding unit performs backing welding on a girth weld on the side wall surface of a tank sub-assembly (14), the polishing unit polishes the girth weld on the side wall surface of the tank sub-assembly (14) after welding by the plasma welding unit, and the argon arc welding unit performs welding cover surface on the girth weld on the side wall surface of the tank sub-assembly (14);
the cylinder section end clamp (2) is provided with a first adjusting motor (205), the first adjusting motor (205) drives the cylinder section end clamp (2) to do ascending or descending linear motion along the vertical direction, and the cylinder section end clamp (2) is also provided with a roller (222) for supporting the tank body sub-assembly (14);
the end socket clamp (6) is provided with a second adjusting motor (605), and the second adjusting motor (605) drives the end socket clamp (6) to do ascending or descending rectilinear motion along the vertical direction;
when the welding machine works, the shell ring end clamp (2) and the end socket end clamp (6) simultaneously clamp the tank body sub-assembly (14) and drive the tank body sub-assembly (14) to rotate through the rotary motor (8) and the rotary support (7), so that the welding mechanical arm (3) welds a plurality of girth welds on the side wall of the tank body sub-assembly (14).
2. The aluminum alloy powder tank truck tank girth weld welding device as claimed in claim 1, wherein: the welding mechanical arm (3) has the structure that: the automatic wire filling machine comprises a rotary mechanical arm (301), wherein a first wire filling machine (331) is installed at the top of the rotary mechanical arm (301) in a matched mode, a mounting frame (302) is installed at the working end of the rotary mechanical arm (301) in a matched mode, a first mounting bracket (303), a second mounting bracket (304) and a third mounting bracket (305) are installed on the front face of the mounting frame (302) from top to bottom at intervals in sequence, an inclined surface mounting seat with an inclined surface is installed at the end of the first mounting bracket (303) in a matched mode, a plasma welding unit is installed at the end of the first mounting bracket (303) in an inclined mode through the inclined surface mounting seat in an inclined mode, a polishing unit is installed at the top of the second mounting bracket (304) in a matched mode, an argon arc welding unit is installed at the top of the third mounting bracket (305) in a matched mode, and a second wire filling machine (332) is installed at the back face of the mounting frame (302) in a matched mode;
the structure of the plasma welding unit is as follows: the plasma welding device comprises a first sliding table (307) fixed on an inclined surface mounting seat inclined surface, wherein the first sliding table (307) is mounted in a matched mode with a first guide block (310), a second sliding table (308) perpendicular to the first sliding table (307) is mounted on the top of the first guide block (310), the second sliding table (308) is mounted in a matched mode with a second guide block (311), a first mounting seat (306) is mounted on the top of the second guide block (311), a third sliding table (309) perpendicular to the inclined surface mounting seat inclined surface is mounted on the top of the first mounting seat (306), the third sliding table (309) is mounted in a matched mode with a third guide block (312), a plasma welding gun (313) is mounted on the top of the third guide block (312), the plasma welding gun (313) is connected with a first wire filling machine (331) through a first wire feeding pipe (314), a laser tracking sensor (315) and a first monitoring camera (316) are mounted on the top of the first mounting seat (306), and the plasma welding sensor (315) and the first monitoring camera (316) are located right above the plasma welding gun (313);
The first sliding table (307) drives the first guide block (310) to drive the second sliding table (308) to reciprocate linearly along the length direction of the inclined surface mounting seat, the second sliding table (308) drives the second guide block (311) to drive the first mounting seat (306) to reciprocate linearly along the length direction perpendicular to the inclined surface of the mounting seat, the third sliding table (309) drives the third guide block (312) to drive the plasma welding gun (313) to reciprocate linearly along the direction perpendicular to the inclined surface of the inclined surface mounting seat, and therefore the plasma welding gun (313) welds the circumferential weld on the side wall of the tank assembly (14);
the polishing unit has the structure that: the X-axis sliding table (317) is fixed at the top of the second mounting bracket (304), the first X-axis sliding table (317) is mounted in a matched mode with a first X-axis guide block (319), a first Y-axis sliding table (318) which is perpendicular to the first X-axis sliding table (317) is mounted in a matched mode at the top of the first X-axis guide block (319), the first Y-axis sliding table (318) is mounted in a matched mode with a first Y-axis guide block (320), and a polishing head (322) for polishing a girth weld is mounted in a matched mode at the top of the first Y-axis sliding table (318) through a second mounting seat (321);
the first X-axis sliding table (317) drives the first X-axis guide block (319) to drive the first Y-axis sliding table (318) to reciprocate linearly along the length direction perpendicular to the second mounting bracket (304), and the first Y-axis sliding table (318) drives the polishing head (322) to reciprocate linearly along the length direction of the second mounting bracket (304) through the first Y-axis guide block (320), so that the polishing head (322) polishes the girth weld on the side wall of the tank body subassembly (14);
The argon arc welding unit has the structure that: the argon arc welding device comprises a second X-axis sliding table (323) fixed at the top of a third mounting bracket (305), wherein the second X-axis sliding table (323) is mounted in a matched mode with a second X-axis guide block (325), a second Y-axis sliding table (324) perpendicular to the second X-axis sliding table (323) is mounted in a matched mode at the top of the second X-axis guide block (325), the second Y-axis sliding table (324) is mounted in a matched mode with a second Y-axis guide block (326), a third mounting seat (327) is mounted in a matched mode at the top of the second Y-axis guide block (326), an argon arc welding gun (328) and a second monitoring camera (330) are mounted in a matched mode at the top of the third mounting seat (327), and the second monitoring camera (330) is located right above the gun head of the argon arc welding gun (328) and is connected with a second wire filling machine (332) through a second wire feeding tube (329);
the second X-axis sliding table (323) drives the second X-axis guide block (325) to drive the second Y-axis sliding table (324) to reciprocate linearly along the length direction perpendicular to the third mounting bracket (305), and the second Y-axis sliding table (324) drives the argon arc welding gun (328) to reciprocate linearly along the length direction of the third mounting bracket (305) through the second Y-axis guide block (326), so that the argon arc welding gun (328) covers the circumferential weld on the side wall of the tank body subassembly (14).
3. The aluminum alloy powder tank truck tank girth weld welding device as claimed in claim 1, wherein: the shell ring end clamp (2) has the structure that: the device comprises a first connecting plate (201) which is matched with a slewing bearing (7) arranged on a fixed seat (1), wherein a plurality of first adjusting sliding blocks (202) are arranged on the front surface of the first connecting plate (201) in a matched manner, the first adjusting sliding blocks (202) are matched with a plurality of first adjusting sliding rails (203) which are arranged on the back surface of a first connecting frame (204) in a parallel manner, a first adjusting motor (205) is fixed on the top of the first connecting plate (201), the output end of the first adjusting motor (205) is connected with a first screw rod, a first connecting seat (206) is arranged on the outer circumferential surface of the first screw rod in a matched manner, the first connecting seat (206) is fixed with the first connecting frame (204), and the first adjusting motor (205) drives the first connecting seat (206) to linearly move along the first screw rod, so as to drive the first connecting frame (204) to linearly move along the first adjusting sliding rails (203);
the front surface of the first connecting frame (204) is fixedly provided with a first disc (207), the circular surface of the first disc (207) is uniformly provided with a plurality of expansion block sliding rails (209) along the circumference, a single expansion block sliding rail (209) is matched and installed with an expansion block base (211) through a plurality of expansion block sliding blocks (210), the expansion block sliding blocks (210) are installed at the bottom of the expansion block base (211), the top of the single expansion block base (211) is matched and installed with an inner expansion block assembly (212), the front surface of the first disc (207) is concentrically provided with a second disc (208), the middle part of the second disc (208) is provided with a plurality of first arc grooves (218), a cylinder installation seat is installed in the single first arc groove (218), each cylinder installation seat is matched and is provided with a rotary cylinder (219), the output end of each rotary cylinder (219) is connected with the second disc (208), a plurality of second arc grooves (223) are uniformly arranged along the circumference, a single fixed shaft (224) is installed in the single second arc groove (223), the single fixed shaft (224) is correspondingly installed with the single fixed shaft (224) in the second arc grooves (223) in the second arc grooves (218), further, the expansion block assembly (212) is converted to linearly move along the radial direction of the first disc (207);
A plurality of stop blocks (220) are uniformly arranged on the circular surface of the first disc (207) along the circumference, and the stop blocks (220) extend out of the first disc (207) along the radial direction;
the circular surface of the first disc (207) is provided with symmetrically arranged brackets (221), a single bracket (221) is rotationally provided with rollers (222), and the two rollers (222) are used for rotationally supporting the tank body sub-assembly (14).
4. The aluminum alloy powder tank car tank girth weld welding device as claimed in claim 3, wherein: the structure of the single expansion block assembly (212) is as follows: the device comprises a U-shaped seat (215), wherein the U-shaped seat (215) is installed in a matched mode with an expansion block base (211) through a flat key (216), a plurality of threaded holes are formed in the middle of the U-shaped seat (215), a pin (217) is installed in a single threaded hole, the pin (217) locks the U-shaped seat (215) at the top of the expansion block base (211), and a first expansion block group (213) and a second expansion block group (214) are symmetrically installed on the outer side wall of the U-shaped seat (215);
the first expansion block group (213) and the second expansion block group (214) correspond to the shape of the inner side wall of the cylinder section of the tank body sub-assembly (14), and the volume of the tank body sub-assembly (14) expanded by the first expansion block group (213) is larger than that of the tank body sub-assembly (14) expanded by the second expansion block group (214).
5. The aluminum alloy powder tank truck tank girth weld welding device as claimed in claim 1, wherein: the end socket end clamp (6) has the structure that: the clamp comprises a second connecting plate (601) which is matched with a slewing bearing (7) arranged on a movable seat (5), a second connecting frame (604) is fixedly arranged on the front surface of the second connecting plate (601), a second adjusting motor (605) is fixedly arranged at the bottom of the second connecting frame (604), the output end of the second adjusting motor (605) is connected with a second screw rod, a second connecting seat (606) is arranged on the outer circumferential surface of the second screw rod, the second connecting seat (606) is fixed with a clamp mounting seat (607), a plurality of second adjusting slide rails (603) which are arranged in parallel are matched on the front surface of the second connecting frame (604), a second adjusting slide block (602) is matched with a single second adjusting slide rail (603), and the second adjusting slide block (602) is fixedly arranged on the back surface of the clamp mounting seat (607), so that the second adjusting motor (605) drives the second connecting seat (606) to linearly move along the axial direction of the second screw rod through the second screw rod, and the clamp mounting seat (607) is driven to linearly move along the second adjusting slide rails (603);
The front surface of the clamp mounting seat (607) is provided with symmetrically arranged profiling mounting frames (612) in a matched manner, two ends of a single profiling mounting frame (612) are provided with symmetrically arranged profiling blocks (613) in a matched manner, and the working surfaces of the four profiling blocks (613) correspond to the shape of the outer side wall of the sealing head of the tank sub-assembly (14);
the clamping slide rail (608) is symmetrically arranged on the outer side wall of the clamp mounting seat (607), the clamping slide block (609) is arranged on the profiling mounting seat (612), a clamping motor (610) is fixed in the middle of the clamp mounting seat (607), the output end of the clamping motor (610) is connected with symmetrically arranged clamping screw rods, third connecting seats (611) are arranged on the outer circumferential surface of each clamping screw rod in a matched mode, each third connecting seat (611) is connected with the corresponding single profiling mounting seat (612), the clamping motor (610) respectively drives the two third connecting seats (611) to do opposite or opposite linear motion through the two clamping screw rods, so that the two profiling mounting seats (612) are driven to do opposite or opposite linear motion along the clamping slide rail (608), and the profiling blocks (613) clamp or loosen the sealing heads of the tank body sub-assembly (14).
6. The aluminum alloy powder tank truck tank girth weld welding device as claimed in claim 1, wherein: the structure of the traversing mechanism (9) is as follows: including sideslip base (901), the top parallel arrangement of sideslip base (901) has several sideslip slide rail (903), and several sideslip slide block (904) are installed in cooperation of single sideslip slide rail (903), and the top installation of sideslip slide block (904) removes seat (5), remove fixed sideslip motor (902) on seat (5), sideslip gear (905) are connected to the output of sideslip motor (902), sideslip gear (905) and sideslip rack (906) meshing installation, and sideslip rack (906) are installed at the top of sideslip base (901) to be located between sideslip slide rail (903), sideslip motor (902) are through sideslip gear (905) and sideslip rack (906) drive and are removed seat (5) and do rectilinear motion along sideslip slide rail (903).
7. The aluminum alloy powder tank truck tank girth weld welding device as claimed in claim 1, wherein: the roller frame mechanism (12) is characterized in that: the lifting device comprises a supporting seat (1201), wherein a lifting motor (1202) is fixedly arranged at the top of the supporting seat (1201), the output end of the lifting motor (1202) is connected with a steering gear, the steering gear is respectively connected with two lifters (1204) through symmetrically arranged transmission shafts (1203), lifting connecting seats (1206) are arranged at the top of a single lifter (1204) in a matched mode, guide posts (1205) are symmetrically arranged at two sides of the single lifter (1204), and the lifting motor (1202) drives the two transmission shafts (1203) to simultaneously rotate through the steering gear, so that the two lifters (1204) simultaneously drive the two lifting connecting seats (1206) to do ascending or descending rectilinear motion;
The top of two connection seats (1206) lifts installs gyro wheel mounting panel (1207) simultaneously, gyro wheel mount pad (1210) of symmetrical arrangement are installed at the top of gyro wheel mounting panel (1207), and gyro wheel motor (1208) are fixed in the outside of single gyro wheel mount pad (1210), and the output of single gyro wheel motor (1208) passes the lateral wall of gyro wheel mount pad (1210) and is connected with support gyro wheel (1209) of installing inside gyro wheel mount pad (1210), and gyro wheel motor (1208) drive support gyro wheel (1209) are rotatory to drive jar body subassembly (14) between two support gyro wheels (1209) and rotate.
8. The aluminum alloy powder tank truck tank girth weld welding device as claimed in claim 1, wherein: an operation table (10), a laser tracking control cabinet (11) and a plasma generating mechanism (13) are arranged beside the base (4).
9. A welding method using the aluminum alloy powder tank truck tank girth weld welding device according to claim 1, wherein: the method comprises the following steps:
s1, placing a tank body sub-assembly (14) on a roller frame mechanism (12) and a roller (222);
s2, the movable seat (5) drives the seal end clamp (6) to be close to the seal end of the tank body sub-assembly (14) through the transverse moving mechanism (9);
s3, after the seal head end clamp (6) moves in place, clamping the seal head of the tank body sub-assembly (14), and then the shell ring end clamp (2) tightly tightens the shell ring end of the tank body sub-assembly (14) so as to clamp the tank body sub-assembly (14);
S4, a welding mechanical arm (3) is close to the tank body sub-assembly (14) and points to a girth joint position between an end socket of the tank body sub-assembly (14) and an upper cylinder section, then the roller frame mechanism (12) descends, and two rotary motors (8) respectively drive the cylinder section end clamp (2) and the end socket end clamp (6) to rotate through two slewing bearings (7) so as to drive the tank body sub-assembly (14) to rotate, and the welding mechanical arm (3) welds the girth joint between the end socket of the tank body sub-assembly (14) and the upper cylinder section;
after the first girth weld is welded, the first adjusting motor (205) drives the shell ring end clamp (2) to descend along the vertical direction, and meanwhile, the second adjusting motor (605) drives the seal head end clamp (6) to descend along the vertical direction, so that the center of the girth weld between the upper shell ring and the lower shell ring of the tank body subassembly (14) coincides with the rotation centers of the shell ring end clamp (2) and the seal head end clamp (6);
the welding mechanical arm (3) is close to the girth joint between the upper cylinder section and the lower cylinder section of the tank body subassembly (14), and the cylinder section end clamp (2) and the end socket end clamp (6) drive the tank body subassembly (14) to rotate, and the welding mechanical arm (3) welds the girth joint between the upper cylinder section and the lower cylinder section of the tank body subassembly (14);
s5, after welding is finished, the welding mechanical arm (3) returns to the original position, the shell ring end clamp (2) and the shell head end clamp (6) rotate to the original position, and the roller frame mechanism (12) ascends to support the tank body sub-assembly (14);
S6, the tank body sub-assembly (14) is transported to the next working procedure.
10. A method for welding circumferential welds on a tank body of an aluminum alloy powder tank truck as claimed in claim 9, characterized in that: when the welding mechanical arm (3) welds a girth weld on the tank body subassembly (14), the method comprises the following steps:
s4.1, a rotating mechanical arm (301) drives a plasma welding unit, a polishing unit and an argon arc welding unit to reach a target position;
s4.2, adjusting the plasma welding unit to reach an arc starting point;
s4.3, performing plasma welding on the tank sub-assembly (14) through a plasma welding unit, and enabling the plasma welding unit to delay at each working point for a specified time so as to dissolve out the girth weld of the tank sub-assembly (14);
s4.4, adjusting the polishing unit to be always clung to the girth weld of the tank sub-assembly (14), and polishing the girth weld of the tank sub-assembly (14) by the polishing unit after the girth weld of the plasma welding reaches the specified weld length;
s4.5, arc filling pits are received by the plasma welding unit, and plasma welding is completed;
s4.6, stopping polishing by the polishing unit;
s4.7, before plasma welding is completed, adjusting the argon arc welding unit in place, and after the plasma welding is completed, starting welding by the argon arc welding unit;
S4.8, after the argon arc welding unit covers the circumferential weld welded by the plasma welding unit for a circle, and when the circumferential weld is overlapped with the starting welding point of the argon arc welding unit by 10mm, the shell ring end clamp (2) and the shell head end clamp (6) stop rotating, and the argon arc welding unit is retracted into an arc pit, so that the welding is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310776634.5A CN116967641A (en) | 2023-06-28 | 2023-06-28 | Welding device and welding method for circumferential weld of tank body of aluminum alloy powder tank truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310776634.5A CN116967641A (en) | 2023-06-28 | 2023-06-28 | Welding device and welding method for circumferential weld of tank body of aluminum alloy powder tank truck |
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| CN116967641A true CN116967641A (en) | 2023-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310776634.5A Pending CN116967641A (en) | 2023-06-28 | 2023-06-28 | Welding device and welding method for circumferential weld of tank body of aluminum alloy powder tank truck |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117161668A (en) * | 2023-11-02 | 2023-12-05 | 常州市武进广宇花辊机械有限公司 | Roller double-head welding device for winding large-tow carbon fibers |
| CN117532263A (en) * | 2024-01-10 | 2024-02-09 | 太原市水利勘测设计院 | Automatic welding device for omnibearing adjustable water conservancy and hydropower pipeline and use method |
| CN117773481A (en) * | 2023-12-28 | 2024-03-29 | 嘉兴压力容器厂 | Welding fixture for sealing head of pressure tank |
-
2023
- 2023-06-28 CN CN202310776634.5A patent/CN116967641A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117161668A (en) * | 2023-11-02 | 2023-12-05 | 常州市武进广宇花辊机械有限公司 | Roller double-head welding device for winding large-tow carbon fibers |
| CN117161668B (en) * | 2023-11-02 | 2023-12-29 | 常州市武进广宇花辊机械有限公司 | Roller double-head welding device for winding large-tow carbon fibers |
| CN117773481A (en) * | 2023-12-28 | 2024-03-29 | 嘉兴压力容器厂 | Welding fixture for sealing head of pressure tank |
| CN117773481B (en) * | 2023-12-28 | 2024-05-24 | 嘉兴压力容器厂 | Welding fixture for sealing head of pressure tank |
| CN117532263A (en) * | 2024-01-10 | 2024-02-09 | 太原市水利勘测设计院 | Automatic welding device for omnibearing adjustable water conservancy and hydropower pipeline and use method |
| CN117532263B (en) * | 2024-01-10 | 2024-03-19 | 太原市水利勘测设计院 | Automatic welding device for omnibearing adjustable water conservancy and hydropower pipeline and use method |
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