H Beam Gantry Welder

1.SXBH20 double column welding machine

1.1 structure principle

The working principle of the double column welding machine is similar with gantry-type welding machine. The difference is that, for gantry welding machine, the welding is accomplished between two rails; for double column welding machine, the welding is accomplished outside the rails. It can weld the H-beam which is higher than 1.5m, no limit for beam height. When it is single arc single wire welding , the welding power can be settled on the machine trolley, while it is double arc double wire, there are total 4 welding source , cannot be settled on the trolley.

Double column welding machine is composed by moving trolley, vertical column, up platform, welding arm and tool carriage, welding seam tracking system, wire feeding device, wire reel supporter, flux recovery system, electrical control system, SAW source.

Moving trolley is composed by union of two moving beams. The moving trolley is driven by two motors speed-reducer, the system is double driving, which insure the moving stable and reliable. The moving trolley can hold two SAW power source.

There is rail and rack in the front of the up platform, which can make the welding arm and tool carriage moving. There are two wire reels and flux recovery machine on the platform.

Welding arm is the most important part for welding work, it can move horizontally on cross beam together with tool carriage, also can move up and down on directional wheel of the tool carriage .

Seam tracking device is placed under welding beam, it has the function of automatic tracking, which can keep suitable distance between welding gun and welding seam, it has auto compensation function for H-beam‘s deformation .

Wire feeding device is fixed in arc-guiding device, it can connect wire feeder and wire reel together by wire feeding pipe.

Wire reel supporter is used for fixing wire reel, place wire reel into the supporter before welding, then make wire thrill through feeding pipe and connect it to feeding machine.

Flux recovery system is composed of flux recovery machine, flux cylinder, flux bucket, flux feeding pipe, flux recovery pipe and so on. They work together to realize automation of flux feeding and recovery process.

Electrical control system is composed of one electrical control box and two operation boxes, the electrical control box is fixed on one moving beam, the two operation boxes is fixed on the up platform. The electrical control system control movement of trolley, up-down of welding arm, start and stop of SAW welding power, start and stop of flux recovery machine and so on. The movement of trolley is frequency speed adjust controlled, the welding speed can be adjusted according to welding technology requirement.

1.2 Technical parameter

Rail gauge： 2000mm
Welding speed： 15～1 m/min
Return speed： 3 m/min
Web height： 200～2000mm
Flange width： 200～800mm
Main motor power： 4 kW
Recycling machine power：3 kW

1.3 Goods Supply range

Main machine: trolley, vertical column, and up platform
Welding beam and dragging board: 2 sets of welding arm, tool carriage
Welding seam tracking system: 2 sets of arc-guiding frame, wire feeding system, cross sliding board
Flux recycling system: 2 sets of flux recovery machine, flux bucket, flux cylinder, feeding pipe.
Electrical system: electrical cabinet, control box, inverter etc.
SAW welding source: 2 sets of Zhouxiang MZ-1250 SAW welding power

1.4 Technical files