H beam integrated machine (H beam assembling welding straightening machine)

H Beam Fabrication Machine (assembling-welding-straightening three functions in one)

Video Link: http://youtu.be/IKrJ7dHL9IA

Technical Introduction

PHJ series H beam fabrication machine is a highly efficient equipment for manufacturing welding structure H beam, which can finish the job of accurate "I" shape assembly, SAW, flange straightening of light duty H beam with the weld toe below 8mm.This equipment has the merit of compact appearance while integrating the function of assembly, welding and straightening, so as to leaving out transfer of work-piece among different process, which is a cost efficient equipment of good technology.

1. Technical parameters

● Machine parameters

Welding: twin arc Tack SAW

Maximum weld toe size of single pass: 8mm

Input conveyor: total length 10m, into 3 segments, of which one is motor-driven 3 sets conveyor.

Output conveyor: total length around 10m, of which two can be elevated 4 sets conveyor.

Assembly, welding and straightening speed: 0.2-2m/min

Total power: 11KW (two welding power is 180KVA)

Machine size: length × width × height = 28m × 4m × 4.2m

Color: depend on customer demand, blue or gray

2. Structure

Fabrication machine is set up H beam's flange and web, it is a special equipment that have functions of directly assembling, welding and straightening, it will improve the production efficiency, reduces the cost of equipment, save the installation space. Special machine is efficient in the production of H beam and T beam.

The equipment include assembling and welding unit, straightening auxiliaries, centering system, active lift roller, active and passive roller, welding flux recovery system, hydraulic system, electric control system, welding power source, etc.

    Assembling and welding unit has up door frame, flange and web centering system, the main transmission mechanism and welding torch regulating mechanism, conductive device, etc.

    The base is welding structure, flange and web centering system installed on the top of base, also main driven roller, welding torch regulating mechanism, conductive device and up door frame, the lower part installation of main driven gear shaft and chain, the side of the base is main driven motor reducer.

Up door frame install up pressure roller, the roller fixed on the up door frame lifting beam, lifting beam driven by cylinder' pressure, it can lift and move on the door frame of the guide rail.

Flange and web centering system adopts hydraulic motor driven, through the turbine reducer, gear transmission and wire rod, to driven clamping wheel alignment and clamping work-piece of flange and web.

Main transmission part adopts motor reducer driven, through the chain transmission driven to drive main roller rotation, at the same time drive the main straightening roller from the chain also produces straightening auxiliary. Assembling and welding speed adopts AC frequency adjustment, can be in 0.35-3 m/min range adjustment.

Fabrication machine's web and flange centering or clamping, and the up roller's pressure driven by hydraulic system, the action of compression force on the site's can by the hydraulic pressure regulator to adjust.

Straightening auxiliary by the straightening wheel mechanism, the bottom straightening institutions and flange centering system, wallboard, etc. Two up rollers driven by hydraulic cylinder, it can downward press flange. One bottom roller driven by assembling and welding machine's chain, can be continuously to straightening the work-piece.

Centering system is used to input the flange on the roller, driven by two hydraulic cylinders, flange and web agencies in two sets of movements.

3. Assembly unit

There are 3 sets of manipulator among input conveyors of the equipment, for rough aligning and positioning of flange and web. When sheets are hoisted onto the equipment, these manipulators can support the sheets and align them, preventing the sheets from dumping, making operation safe and reliable.

There are 2 sets of positioning units for flange and web each, with the positioning style of one side lead-screw, the other side hydraulic cylinder, making accurate positioning of the work-piece. The lead-screw positioning units (2 for flange, 2 for web) are joint together thru coupling shaft of reducer, guaranteeing in-phase working of the units, as well as simple and quick adjustment for different size of H-beam.

After web and flange are sent into the equipment, the tail aligning unit will be raised automatically, making sure alignment of face of flanges and web.

4. Welding unit

2 sets of U.S. LINCOLN DC1000 SAW system, used for welding the 2 seams alongside both sides of H-beam, of Twin arc fashion (TWIN, Ø1.6 wire), featuring in high efficiency and good quality.

Position of welding torch can be adjusted and observed easily during welding.

2 sets of automatic flux recycling system are used for conveying flux to the welding seam and screening and recycling un-sintered flux by way of the suction hole at the rear side of torch, and sucking the flux back into flux barrel for re-use.

5. Straightening unit

Deformation happens at the flanges post welding. For this reason, 1 set of flange straightening unit is equiped at the output side of the equipment. It is mechanic down stroke style, of strong force and easy control.

Thickness of flange that can be straightened see below table (tensile strength σb≈400MPa):

After welding, one side of web will be subjected to heat input, making H-beam expanding and bending upward. For this reason, 2 sets of elevating conveyor are used for supporting H-beam.

The equipment has the same speed for assembly, welding and straightening which is VF controlled and displayed in digit, adapting to manufacture of H-beam of various specification.