Lateral Management Efficient LHA5C I Beam Gantry Welding Machine

The attached photos were taken on a set of LHA5C side control H Beam Gantry Welding Machine exported to Bangladesh by Wuxi JACK.

1.     The Applicable Workpiece for LHA5C Gantry type H Beam SAW Machine:

a)       LHA5C side control Gantry type H Beam Welding Machine produces H Beam with web height of up to 2000mm, which is the largest model in LHAC series sub group, same as LHA55Z is the largest one in center control type LHAZ series sub group of H Beam Submerged Arc Welding Machine;  

b)      As review, for gantry sketch of side control H Beam SAW Machine, please check below illustration:  (Fig.1)

2.     Outline on Usage and Operation of LHA5C Gantry type I Beam Welding Machine:

1)      This automated H Beam Gantry Welding Machine is for doing automatic SAW (Submerged arc welding) on H Beam;

2)      After assembled and spot welded in Z15/Z18/Z20 H Beam Assembly and Tack Welding machine, the H Beam is put on the supporting racks of the LHA5C Gantry type H Beam SAW Machine, in the flat position of 45° fillet weld. (The supporting racks are put and fixed on the workshop floor beneath the gantry): (Fig.2)

3)      In the SAW process of the LHA5C H Beam Gantry Welding Machine, the two pieces of carriages which are fit with two sets of SAW welding torch can move leftward and rightward along transverse beam of the gantry, as well as up and down along the two pieces of vertical arms installed on the transverse beam of gantry;

4)      In this way, during working of the LHA5C Gantry type H Beam SAW Machine, the two sets of welding torches can move along three axis of X/Y/Z, making its tip aiming at welding seams all along (The forward and backward movement of welding torches in horizontal plane is realized with gantry travel along the rails): (Fig.3) 

5)      In one set of LHA5C H Beam Submerged Arc Welding Machine, there are two sets of automatic welding seam tracing unit at the front end of the abovementioned two pieces of carriages (one tracing unit in one carriage each): (Fig.4) 

6)      For implementing SAW on H Beam, gantry moves along rails of the H Beam SAW Machine, performing automatic SAW welding on the two pieces of H Beam: (Fig.5) 

7)      The LHAC series of Gantry type H Beam SAW Machine is also equipped with automatic Flux Deposition and Recovery unit: (Fig.6)

3.     Major Components in LHA5C Gantry type H Beam Welding Machine:

As introduced in product section of “LHA4C Side Control Gantry type H Beam Submerged Arc Welding Machine”, the LHAC series Gantry type H Beam SAW Machine is mainly composed of gantry, transverse moving carriages, welding torch mechanical tracker, welding machine, flux recovery and recycling unit, gas system and electric control system.

4.     Transmission of Welding units in LHAC Gantry type H Beam SAW Machine:

Proper transmission of working motions is critical in guaranteeing high standard delivery of LHAC series Gantry type H Beam SAW Machine:

1)      By means of two sets of adjustable eccentric roller and high precision V-section rail, vertical and horizontal smooth travel of welding torches can be guaranteed: (Fig.7) 

2)      The horizontal movement of carriages along gantry is controlled with handle reducer and gear rack unit;

3)      Vertical motion of welding torch along welding arm is fulfilled with motor reducer and gear rack.  

5.     SAW Process Controlled with Arc Tracing unit of LHAC Gantry type H Beam Welding Machine:

1)      The two sets of arc tracing unit serve as feedback of welding process, sending signal to control system of the LHAC H Beam Gantry Welding Machine, and thus two sets of welding power supply accordingly. To be specific, it monitors welding process of SAW, and sends back detecting signal to control center, forming a closed loop negative feedback control system of SAW process in Gantry type H Beam Welding Machine;

2)      These two sets of arc tracing unit are designed and made by us (Wuxi JACK), and installed on the welding carriages on the transverse beam of the H Beam SAW Machine gantry.

6.     Technical Parameters of LHA5C H Beam Gantry Welding Machine:

Below are specifications of this LHA5C side control Gantry type H Beam Welding Machine: