CN107160088B - Automatic flange double-sided welding device and method - Google Patents
Automatic flange double-sided welding device and method Download PDFInfo
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- CN107160088B CN107160088B CN201710418967.5A CN201710418967A CN107160088B CN 107160088 B CN107160088 B CN 107160088B CN 201710418967 A CN201710418967 A CN 201710418967A CN 107160088 B CN107160088 B CN 107160088B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/02—Carriages for supporting the welding or cutting element
-
- 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
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
-
- 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
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
- B23K37/0533—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor external pipe alignment clamps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
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- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
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- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a flange double-sided automatic welding device and a flange double-sided welding method, wherein the flange double-sided automatic welding device comprises a pipe rotating wheel assembly which is used for bearing a pipe and can enable the pipe to rotate along the radial direction, and is characterized in that: the welding device is characterized in that welding trolley mechanisms capable of simultaneously welding the inner surface and the outer surface of a flange sleeved on the end part of the pipe are respectively arranged on two sides of the pipe rotating wheel assembly, and a rotating limit switch mechanism capable of controlling the welding trolley mechanism and the pipe rotating wheel assembly to stop working when the flange is welded for one circle and smoke treatment during welding are arranged on one side of the pipe rotating wheel assembly. The invention has simple structure, convenient operation and high production efficiency; the method reduces the physical injury of constructors, improves the environmental protection and the product quality, reduces the operation cost of enterprises, reduces manual polishing, saves consumable products and resources, improves the production progress and the product quality, and is environment-friendly and efficient.
Description
Technical Field
The invention relates to a flange double-sided automatic welding device and a method for double-sided welding of a flange by adopting the flange double-sided automatic welding device.
Background
There are a large number of piping structures in the marine engineering industry, of which a significant part consists of pipes and flange connections. Welding flanges at the ends of the pipe is therefore one of the basic tasks of piping construction.
The main welding method adopted at present is to rotate the pipe manually or by using a position changing machine, the welding of inner angle welding seams and outer angle welding seams is carried out on the joint of the pipe and the flange respectively at two ends by manpower under the protection of CO2 gas, the explosion welding phenomenon and the flange deformation caused by single-side welding are easy to occur, the manual operation swing is severe, the molding is not attractive, and a large amount of polishing work is needed. Moreover, due to the defect of the design of the existing welding device, the welding conducting end is generally directly connected to the pipe, and the phenomenon of twisting is easy to occur along with the rotation of the pipe, so that the poor welding seam forming is caused due to the influence of unstable welding current and voltage conduction. The existing method has the defects of large workload of workers and lower production efficiency and quality. Undoubtedly increasing the cost of the enterprise.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a double-sided automatic flange welding device which is simple in structure and can simultaneously weld the inner surface and the outer surface of the upper flanges at the two ends of a pipe;
another object of the invention is to provide a method for welding flanges on both sides using the welding device described above.
In order to achieve the above purpose, the present invention adopts the following scheme:
a flange double-sided automatic welding device, including the pipe swivel wheel subassembly that is used for bearing the pipe and can make the pipe rotate along radial direction, its characterized in that: the welding device is characterized in that welding trolley mechanisms capable of welding the inner surface and the outer surface of a flange sleeved on the end part of the pipe are respectively arranged on two sides of the pipe rotating wheel assembly, and a rotating limit switch mechanism capable of controlling the welding trolley mechanisms and the pipe rotating wheel assembly to stop working when the flange is welded for one circle is arranged on one side of the pipe rotating wheel assembly.
The flange double-sided automatic welding device is characterized in that a smoke purifying mechanism is arranged above the flange.
The flange double-sided automatic welding device is characterized in that the rotary limit switch mechanism comprises a mounting seat, a conductive spring soft rod is arranged on the mounting seat, the upper end of the conductive spring soft rod is propped against the outer wall of a pipe, a magnet limiting block is arranged on the same circumference of the outer wall of the pipe and the conductive spring soft rod, the lower end of the conductive spring soft rod is electrically connected with a controller, and the controller is electrically connected with a welding trolley mechanism and a pipe rotating wheel assembly respectively.
The welding trolley mechanism comprises a welding trolley, an inner welding gun capable of welding the inner side of the flange and an outer welding gun capable of welding the outer side of the flange are arranged on the welding trolley, a first wire feeding mechanism capable of automatically conveying soldering wires to the inner welding gun is arranged on the welding trolley, the first wire feeding mechanism is electrically connected with a first electrode of a welding machine power supply, a second wire feeding mechanism capable of automatically conveying soldering wires to the outer welding gun is arranged on the welding trolley, the second wire feeding mechanism is electrically connected with the first electrode of the welding machine power supply, a grounding device is arranged on one side of the pipe rotating wheel assembly, the upper end of the grounding device is mutually communicated with the outer wall of the pipe, and the grounding device is electrically connected with a second electrode of the welding machine power supply.
The flange double-sided automatic welding device is characterized in that the grounding device comprises two X-shaped conductive brackets arranged at intervals, the two X-shaped conductive brackets are connected through a connecting shaft, each X-shaped conductive bracket comprises two conductive bracket rods with the centers hinged with each other, a tension spring is arranged between the two conductive bracket rods, a red copper conductive wheel is arranged at the upper end of each conductive bracket rod, and each conductive bracket rod is electrically connected with a second electrode of a welding machine power supply.
The flange double-sided automatic welding device is characterized in that a vertical supporting rod is arranged on the welding trolley, an upper sliding block and a lower sliding block which can move up and down relative to the vertical supporting rod are movably arranged on the vertical supporting rod, a connecting cross rod is arranged on the upper sliding block and the lower sliding block, a locking bolt which can lock the upper sliding block and the lower sliding block on the vertical supporting rod is arranged on the upper sliding block and the lower sliding block, a left sliding block and a right sliding block which can move left and right relative to the connecting cross rod are arranged at the outer ends of the connecting cross rod, a vertical connecting rod is arranged on the left sliding block and the right sliding block, a positioning bolt which can lock the left sliding block and the right sliding block on the connecting cross rod is arranged on the vertical connecting rod, an adjusting sliding block which can move up and down relative to the vertical connecting rod is arranged on the vertical connecting rod, an inner welding gun is hinged on the adjusting sliding block, a locking bolt which can lock the sliding block on the vertical supporting rod is arranged on the vertical sliding block is arranged on the sliding block, and an outer welding gun is hinged on the sliding block.
The flange double-sided automatic welding device is characterized in that the controller comprises a controller body, a rotary control unit is arranged in the controller body, the pipe rotary wheel assembly is connected with the rotary control unit, a wire feeding control unit is arranged in the controller body, the first wire feeding mechanism and the second wire feeding mechanism are respectively connected with the wire feeding control unit, a welding control unit is arranged in the controller body, and the welding trolley mechanism is connected with the welding control unit.
The flange double-sided automatic welding device is characterized in that the welding slag hopper is arranged at the front end of the welding trolley.
The invention discloses a flange double-sided welding method which is characterized by comprising the following steps of:
A. placing the pipe on the pipe rotating wheel assembly, and conducting the outer wall of the pipe and the red copper conducting wheel on the grounding device;
B. flanges are respectively arranged at two ends of the pipe and are adjusted to proper positions;
C. the positions of an inner welding gun and an outer welding gun on the welding trolley mechanism are adjusted to be aligned with the welding positions of the inner surface and the outer surface of the flange;
D. the position of the conductive spring soft rod is regulated to enable the upper end of the conductive spring soft rod to be in contact conduction with the outer wall of the pipe, and a magnet limiting block is arranged on the same circumference of the pipe as the conductive spring soft rod;
E. starting a switch corresponding to the smoke purifying mechanism on the controller to enable the smoke purifying mechanism to be in a smoking state; starting a switch corresponding to the welding trolley mechanism to enable the inner welding gun, the outer welding gun, the first wire feeding mechanism and the second wire feeding mechanism to work in an electrifying way, and starting a switch corresponding to the pipe rotating wheel assembly to enable the pipe to rotate;
F. after the pipe is welded for one circle, the welding and rotation are stopped automatically in a limiting way, and the pipe is immediately taken out.
The flange double-sided welding method is characterized in that in the step C, an included angle of 45 degrees is formed between the outer welding gun and the welding line position at the inner end of the pipe; and the inner welding gun forms an included angle of 42 degrees with the position above the welding joint.
In summary, compared with the prior art, the invention has the following beneficial effects:
1. the invention can keep the horizontal position of the flange to be welded by 4 guns at the same time, the quality of the welding seam is obviously improved, the degree of polishing-free is achieved, the production efficiency is 4 times that of the original production efficiency, one person can easily control the welding of 4 welding machines, the welding seams at the two ends of the flange are welded at the same time, a worker only needs to turn on a switch in a contraposition way, the operation is simple, and the production efficiency is high;
2. the equipment is fixed in one place, the wire feeding mechanism is protected by the trolley, the control wire and the equipment of the pulling mechanism cannot be damaged, the safe wire feeding device ensures stable welding of welding current and voltage, automatic welding is realized after parameters are regulated, and the work of watching and repairing the mill by workers is reduced;
3. according to the invention, the limit switch mechanism is rotated, so that the welding work can be automatically stopped after the flange is welded for one circle;
4. the welding seams on the inner surface and the outer surface of the flange are symmetrically welded up and down, so that explosion welding and deformation are effectively prevented, the device is stable during welding, the appearance forming of the welding seams is relatively attractive, the polishing workload is reduced, polishing treatment is carried out at a few joints, and the cost is reduced and the manufacturing cost is reduced;
5. the smoke purification mechanism effectively pumps and processes the smoke generated in the welding process, guarantees the bodies of staff in the construction site environment, relatively improves the safety coefficient and brings high-efficiency, safe and environment-friendly benefits to society.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of another angle of the present invention;
FIG. 3 is a schematic diagram of the present invention;
fig. 4 is a schematic view of a grounding device according to the present invention.
Detailed Description
The invention is further described in the following description and detailed description with reference to the drawings:
the automatic double-sided flange welding device as shown in fig. 1 to 4 comprises a pipe rotating wheel assembly 10 for bearing a pipe 25 and enabling the pipe 25 to rotate along the radial direction, wherein welding trolley mechanisms 30 capable of welding the inner surface and the outer surface of a flange 24 sleeved on the end part of the pipe 25 are respectively arranged on two sides of the pipe rotating wheel assembly 10, and a rotary limit switch mechanism 40 capable of controlling the welding trolley mechanisms 30 and the pipe rotating wheel assembly 10 to stop working when the flange 24 is welded for one circle is arranged on one side of the pipe rotating wheel assembly 10. The flange double-sided automatic welding device can keep four guns at the horizontal position of the flange to be welded simultaneously, two ends of a pipe 25 are sleeved with flanges respectively before welding, the relative position of a welding head in a welding trolley mechanism 30 is adjusted, the welding trolley mechanism is started, the pipe rotating wheel assembly 10 is started simultaneously to enable the pipe 25 to rotate stably along the radial direction, and when the flange 24 is welded for one circle, the welding trolley mechanism 30 and the pipe rotating wheel assembly 10 stop working under the action of the rotary limit switch mechanism 40 until a welding interface is positioned, namely, the welding and the rotation are automatically stopped, so that the automatic flange double-sided automatic welding is realized.
Above the flange 24 in the present invention is provided a fume cleaning mechanism 50. The smoke purifying mechanism 50 of the invention comprises a smoke purifier 16, a telescopic air suction arm 18 is arranged on the smoke purifier 16, a smoke suction cover 17 is arranged at the end part of the telescopic air suction arm 18, two smoke processors are respectively arranged at two ends of a pipe 25, the smoke processors can adopt a VC-BG smoke dust collector, the telescopic air suction arm 18 can be stretched to any position, and smoke dust can be effectively removed from the source, so that air pollution is reduced. The integrated high-efficiency filter has the filtration efficiency of 99.9 percent for welding fume. The corresponding filter medium can be selected according to the smoke properties, and the purification treatment of the smoke with different properties can be satisfied. Compact structure, small volume, convenience and flexibility. The high-performance worm gear fan is equipped, the air suction amount is large, and the working noise is low. The multi-specification air suction arm can be selected by a user, and can simultaneously meet the single-machine double-station operation. The mouth smoking type is matched with a corrugated pipe hose to carry out environmental protection treatment at a stretching welding position, and all generated harmful gases are sucked into the filtering treatment, so that a good production environment is maintained on a construction site.
In one embodiment of the rotary limit switch mechanism 40 of the present invention, the rotary limit switch mechanism 40 includes a mounting seat 41, a conductive spring soft rod 42 is disposed on the mounting seat 41, an upper end of the conductive spring soft rod 42 abuts against an outer wall of the pipe 25, a magnet limiting block 43 is disposed on the same circumference of the outer wall of the pipe 25 and the conductive spring soft rod 42, a lower end of the conductive spring soft rod 42 is electrically connected with the controller 1, and the controller 1 is electrically connected with the welding carriage mechanism 30 and the pipe rotary wheel assembly 10 respectively. In the invention, an electric shock terminal at the upper end of a conductive spring soft rod 42 is normally connected with the outer wall of a pipe 25, a pipe rotating wheel assembly 10 drives the pipe to rotate in the welding process, a magnet limiting block synchronously rotates along with the pipe, and after the magnet limiting block rotates for one circle, the conductive spring soft rod slightly deviates from the outer wall of the pipe by 10 millimeters under the blocking of the magnet limiting block, at the moment, a circuit loop among a welding trolley mechanism 30, the pipe rotating wheel assembly 10, a controller 1 and the pipe 25 is disconnected, the welding trolley mechanism 30 and the pipe rotating wheel assembly 10 are in power failure to stop the welding operation and rotation, and at the moment, a welding molten pool just crosses an arc starting point to smoothly butt with an arc receiving point, and the welding molten pool is perfectly formed. When the second pipe is carried out, only the magnetic limiting block is required to be attracted and stabilized to the clockwise side of the corresponding conductive spring soft rod, and the control system and the circuit are advanced and convenient to operate.
The rotation limit switch mechanism 40 can also be implemented in other ways, for example, a toggle rod is arranged on the outer wall of the pipe, a touch switch is arranged at a position below the pipe corresponding to the toggle rod, when the pipe rotates, the toggle rod synchronously rotates, and when the pipe rotates to the touch switch, the power supply can be controlled to be disconnected by touching the touch switch.
The welding carriage mechanism 30 in the invention comprises the following specific components: the welding device comprises a welding trolley 23, wherein an inner welding gun 31 capable of welding the inner side of a flange 24 and an outer welding gun 32 capable of welding the outer side of the flange 24 are arranged on the welding trolley 23, a first wire feeding mechanism 112 for automatically conveying soldering wires by the inner welding gun 31 is arranged on the welding trolley 23, the first wire feeding mechanism 112 is electrically connected with a first electrode of a welding machine power supply 12, a second wire feeding mechanism 113 for automatically conveying soldering wires by the outer welding gun 32 is arranged on the welding trolley 23, the second wire feeding mechanism 113 is electrically connected with the first electrode of the welding machine power supply 12, a grounding device 14 is arranged on one side of a pipe rotating wheel assembly 10, the upper end of the grounding device 14 is mutually communicated with the outer wall of a pipe 25, and the grounding device 14 is electrically connected with a second electrode of the welding machine power supply 12. According to the welding device, the first wire feeding mechanism 112 and the second wire feeding mechanism 113 can respectively and internally weld the welding gun 31 and the outer welding gun 32 to automatically feed welding wires, the first wire feeding mechanism 112 and the second wire feeding mechanism 113 are arranged on the welding trolley 23, the control wires and equipment of the mechanisms cannot be damaged, the welding trolley 23 can conveniently adjust the positions according to the length of the pipe 25, and the welding device is convenient to use. In the invention, an inner welding gun and an outer welding gun are respectively connected with a welding machine.
The grounding device 14 comprises two X-shaped conductive brackets 141 which are arranged at intervals, the two X-shaped conductive brackets 141 are connected through a connecting shaft 142, the X-shaped conductive brackets 141 comprise two conductive bracket rods 1411 with the centers hinged with each other, a tension spring 143 is arranged between the two conductive bracket rods 1411, a red copper conductive wheel 144 is arranged at the upper end of the conductive bracket rod 1411, and the conductive bracket rod 1411 is electrically connected with a second electrode of the welding machine power supply 12. In the invention, two red copper conductive wheels 144 are arranged at the upper end of the conductive bracket rod 1411, four red copper conductive wheels 144 are arranged at the upper end of the X-shaped conductive bracket 141 at the two sides, the four red copper conductive wheels supply current and voltage loops in the welded pipe, and the tension spring 143 has the effect of tensioning the rolling red copper conductive wheels, so that the pipe can more stably convey the loops when rolling, and the self weight of the pipe can be utilized to realize automatic separation and clamping functions.
In the present invention, a vertical support bar 231 is provided on the welding carriage 23, an up-and-down sliding block 232 capable of moving up and down relative to the vertical support bar 231 is movably provided on the vertical support bar 231, a connecting cross bar 233 is provided on the up-and-down sliding block 232, a locking bolt 234 capable of locking the up-and-down sliding block 232 on the vertical support bar 231 is provided on the up-and-down sliding block 232, a left-and-right sliding block 235 capable of moving left and right relative to the connecting cross bar 233 is provided on the outer end of the connecting cross bar 233, a vertical connecting rod 236 is provided on the left-and-right sliding block 235, a positioning bolt 237 capable of locking the left-and-right sliding block 235 on the connecting cross bar 233 is provided on the left-and-right sliding block 235, an adjusting slide 238 capable of moving up and down relative to the vertical connecting rod 236 is provided on the vertical connecting rod 236, the inner welding gun 31 is hinged on the adjusting slide 238, a slide seat 239 capable of sliding up-and-down relative to the vertical support bar 231 is provided on the vertical support bar 231, a locking bolt 2310 capable of locking the slide seat 239 on the vertical support bar 231 is provided on the slide seat 239, and the outer welding gun 32 is hinged on the slide seat 239. In the present invention, the positions of the inner welding torch 31 and the outer welding torch 32 can be adjusted by adjusting the up-down slider 232, the left-right slider 235, the adjusting slider 238, the slide seat 239, and the like. When the gun mouth of the outer welding gun corresponds to the welding seam position at the inner end of the pipe in the production process, the welding gun slightly controls the welding direction of 45 degrees, the inner welding gun is adjusted to the position above the welding seam of the pipe, and the angle is adjusted to be controlled by 42 degrees.
The controller 1 comprises a controller body, a rotation control unit is arranged in the controller body, the pipe rotating wheel assembly 10 is connected with the rotation control unit, a wire feeding control unit is arranged in the controller body, the first wire feeding mechanism 112 and the second wire feeding mechanism 113 are respectively connected with the wire feeding control unit, a welding control unit is arranged in the controller body, and the welding trolley mechanism 30 is connected with the welding control unit. In the invention, a stop switch, a welding switch, a forward switch, a reverse switch and the like are arranged in a controller 1, and each switch is respectively connected with a corresponding control unit.
In the invention, a slag welding hopper 22 is arranged at the front end of the welding trolley 23. Welding slag can be collected together in the welding process, and the neatness of the working environment is ensured.
The invention discloses a flange double-sided welding method, which comprises the following steps:
A. placing the tube 25 on the tube rotator wheel assembly 10 and interconnecting the outer wall of the tube 25 with the red copper conductive wheel 144 on the grounding device 14;
B. flanges 24 are respectively arranged at two ends of the pipe 25 and are adjusted to proper positions;
C. the positions of an inner welding gun 31 and an outer welding gun 32 on the welding trolley mechanism 30 are adjusted to be aligned with the welding positions of the inner surface and the outer surface of the flange 24; the outer welding gun 32 forms an included angle of 45 degrees with the welding line position at the inner end of the pipe; the inner welding gun 31 forms an included angle of 42 degrees with the position above the welding seam.
D. The position of the conductive spring soft rod 42 is adjusted to enable the upper end of the conductive spring soft rod 42 to be in contact conduction with the outer wall of the pipe 25, and a magnet limiting block 43 is arranged on the same circumference of the pipe 25 and the conductive spring soft rod 42;
E. the corresponding switch of the smoke purifying mechanism 50 on the controller 1 is started to enable the smoke purifying mechanism 50 to be in a smoking state; turning on the corresponding switches of the welding carriage mechanism 30 to enable the inner welding gun 31 and the outer welding gun 32 and the first wire feeding mechanism 112 and the second wire feeding mechanism 113 to work in a power-on mode, and turning on the corresponding switches of the pipe rotating wheel assembly 10 to enable the pipe 25 to rotate;
F. after the pipe 25 is welded for one circle, the welding and rotation are stopped in a limiting manner, and the pipe is immediately taken out.
The pipe rotating wheel assembly 10 is a roller frame and belongs to a commercial product.
The grounding device is adjustable in size and suitable for pipes with different pipe diameters, the applicability is wide, a welding gun, a welding machine, a wire feeding mechanism and the like are arranged on the welding trolley, the flexibility is good, the welding trolley can be flexibly adjusted according to the pipes with different lengths, the smoke pumping system is responsible for pumping generated smoke to protect the environment and the health of workers, and the rotation limit switch mechanism ensures that the welding and rotation are automatically stopped after one circle of welding.
The flange double-sided automatic welding device is suitable for manufacturing shipbuilding pipes, high-efficiency production and quality assurance, is suitable for welding the shipbuilding pipes, is an essential product on a ship, is an oil, water, gas, high-pressure pipeline and the like, is a key technical core, is production quality and efficiency, is a proposition of enterprises, is only a way for the enterprises to develop, reduces polishing work, saves labor, consumables, resources and the like, and brings the most direct profit to the enterprises.
The flange double-sided automatic welding device is low in manufacturing cost, is suitable for being used in workshops of shipbuilding pipe manufacturing industry, reduces labor intensity by one time, shortens time of auxiliary tools of workers, can also reduce polishing time of pipes, and is finished in 1 hour in total according to the fact that a welding seam is larger or smaller and needs polishing smooth according to the traditional welding of one welding seam, and the repairing and grinding work is finished in 1 hour, wherein the welding is finished in 0.5 hour enough and converted into 1:4, 3 manpower can be saved per day according to the efficiency ratio, and 600 yuan of cost can be directly saved for a company per day according to 200 yuan of manpower cost. Therefore, the flange double-sided automatic welding device can bring great social benefit, reduce environmental pollution and environmental protection, improve production efficiency and quality, reduce running cost of enterprises, reduce unnecessary waste of consumable products such as polishing and grinding sheets of workers, improve production progress and product quality, and improve satisfaction and credibility for owners.
In the description of the present invention, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying a number of technical features which is being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.
In the description of the present invention, unless explicitly stated and limited otherwise, the term "coupled" is to be interpreted broadly, and may be, for example, fixedly coupled, detachably coupled, or integrally formed; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium, and can be communication between the two parts or interaction relationship between the two parts.
The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
While there has been shown and described what is at present considered to be the fundamental principles and the main features of the invention and the advantages thereof, it will be understood by those skilled in the art that the present invention is not limited to the foregoing embodiments, but is described in the foregoing description merely illustrates the principles of the invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention as hereinafter claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A flange double-sided automatic welding device comprising a pipe rotating wheel assembly (10) for carrying a pipe (25) and enabling the pipe (25) to rotate in a radial direction, characterized in that: the welding trolley mechanism (30) capable of welding the inner surface and the outer surface of the flange (24) sleeved on the end part of the pipe (25) is arranged on two sides of the pipe rotating wheel assembly (10), the rotating limit switch mechanism (40) capable of controlling the welding trolley mechanism (30) and the pipe rotating wheel assembly (10) to stop working when the flange (24) is welded for one circle is arranged on one side of the pipe rotating wheel assembly (10), the rotating limit switch mechanism (40) comprises a mounting seat (41), a conductive spring soft rod (42) is arranged on the mounting seat (41), the upper end of the conductive spring soft rod (42) abuts against the outer wall of the pipe (25), a magnet limiting block (43) is arranged on the same circumference of the outer wall of the pipe (25) and the conductive spring soft rod (42), the lower end of the conductive spring soft rod (42) is electrically connected with the controller (1), and the controller (1) is electrically connected with the welding trolley mechanism (30) and the pipe rotating wheel assembly (10) respectively.
2. The automatic welding device for double surfaces of flanges according to claim 1, characterized in that the welding trolley mechanism (30) comprises a welding trolley (23), an inner welding gun (31) capable of welding the inner side of the flange (24) and an outer welding gun (32) capable of welding the outer side of the flange (24) are arranged on the welding trolley (23), a first wire feeding mechanism (112) for automatically conveying soldering wires to the inner welding gun (31) is arranged on the welding trolley (23), the first wire feeding mechanism (112) is electrically connected with a first electrode of a welding machine power supply (12), a second wire feeding mechanism (113) for automatically conveying soldering wires to the outer welding gun (32) is arranged on the welding trolley (23), the second wire feeding mechanism (113) is electrically connected with the first electrode of the welding machine power supply (12), a grounding device (14) is arranged on one side of the pipe rotating wheel assembly (10), the upper end of the grounding device (14) is mutually conducted with the outer wall of the pipe (25), and the grounding device (14) is electrically connected with a second electrode of the welding machine (12).
3. The flange double-sided automatic welding device according to claim 2, wherein the grounding device (14) comprises two X-shaped conductive brackets (141) arranged at intervals, the two X-shaped conductive brackets (141) are connected through a connecting shaft (142), the X-shaped conductive brackets (141) comprise two conductive bracket rods (1411) with hinged centers, a tension spring (143) is arranged between the two conductive bracket rods (1411), a red copper conductive wheel (144) is arranged at the upper end of the conductive bracket rod (1411), and the conductive bracket rods (1411) are electrically connected with a second electrode of a welding machine power supply (12).
4. The flange double-sided automatic welding device according to claim 2, characterized in that a vertical supporting rod (231) is provided on the welding carriage (23), an up-and-down sliding block (232) capable of moving up and down relative to the vertical supporting rod (231) is movably provided on the vertical supporting rod (231), a connecting cross rod (233) is provided on the up-and-down sliding block (232), a locking bolt (234) capable of locking the up-and-down sliding block (232) on the vertical supporting rod (231) is provided on the up-and-down sliding block (232), a left-and-right sliding block (235) capable of moving left and right relative to the connecting cross rod (233) is provided on the outer end of the connecting cross rod (233), a vertical connecting rod (236) is provided on the left-and-right sliding block (235), an adjusting sliding block (238) capable of locking the left-and-right sliding block (235) on the connecting cross rod (233) is provided on the left-and-right sliding block (235), an inner welding gun (31) is hinged on the adjusting block (238), and a vertical seat (231) capable of sliding vertically relative to the left-and right sliding block (231) is provided on the left-and right sliding rod (231), a locking bolt (2310) capable of locking the sliding seat (239) on the vertical supporting rod (231) is arranged on the sliding seat (239), and the outer welding gun (32) is hinged on the sliding seat (239).
5. The flange double-sided automatic welding device according to claim 2, wherein the controller (1) comprises a controller body, a rotation control unit is arranged in the controller body, the pipe rotating wheel assembly (10) is connected with the rotation control unit, a wire feeding control unit is arranged in the controller body, the first wire feeding mechanism (112) and the second wire feeding mechanism (113) are respectively connected with the wire feeding control unit, a welding control unit is arranged in the controller body, and the welding trolley mechanism (30) is connected with the welding control unit.
6. A flange double-sided automatic welding device according to claim 2, characterized in that a welding hopper (22) is provided at the front end of the welding carriage (23).
7. A flange double-sided welding method based on the flange double-sided automatic welding device according to any one of claims 3-6, characterized by comprising the steps of:
A. placing the tube (25) on the tube rotating wheel assembly (10) and enabling the outer wall of the tube (25) to be communicated with the red copper conductive wheel (144) on the grounding device (14);
B. flanges (24) are respectively arranged at two ends of the pipe (25) and are adjusted to proper positions;
C. the positions of an inner welding gun (31) and an outer welding gun (32) on the welding trolley mechanism (30) are adjusted to be aligned with the welding positions of the inner surface and the outer surface of the flange (24);
D. the position of the conductive spring soft rod (42) is adjusted to enable the upper end of the conductive spring soft rod (42) to be in contact and conduction with the outer wall of the pipe (25), and a magnet limiting block (43) is arranged on the same circumference of the pipe (25) as the conductive spring soft rod (42);
E. a switch corresponding to the smoke purifying mechanism (50) on the controller (1) is started to enable the smoke purifying mechanism (50) to be in a smoking state; starting a switch corresponding to the welding trolley mechanism (30) to enable the inner welding gun (31) and the outer welding gun (32) and the first wire feeding mechanism (112) and the second wire feeding mechanism (113) to work in an electrifying mode, and starting a switch corresponding to the pipe rotating wheel assembly (10) to enable the pipe (25) to rotate;
F. and (3) after the pipe (25) is welded for one circle, stopping welding and rotating, and taking out the pipe after the flange is cooled.
8. The flange double-sided welding method according to claim 7, characterized in that in step C the outer welding gun (32) forms an angle of 45 ° with the position of the inner end weld of the pipe; the inner welding gun (31) forms an included angle of 42 degrees with the position above the welding joint.
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| CN201710418967.5A CN107160088B (en) | 2017-06-06 | 2017-06-06 | Automatic flange double-sided welding device and method |
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| CN107160088B true CN107160088B (en) | 2023-10-03 |
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| CN107877060B (en) * | 2017-12-15 | 2019-06-18 | 哈尔滨增强联智投资企业(有限合伙) | A kind of uncovered box welding robot |
| CN110666400A (en) * | 2019-09-23 | 2020-01-10 | 上海江南长兴造船有限责任公司 | Two-sided welding set of BAR shaped plate |
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