Trolley Column Structure LHC Model H Beam SAW Machine

The attached first and second photos were taken on the installation and commissioning of LHC model Column type I Beam Welding Machine (I Beam is the synonym of H Beam) at Wuxi JACK.  (Fig.1)

1.     Working Process of LHC model Column type I Beam Welding Machine:

The below photo indicates the on site layout of LHC Column type I Beam Submerged Arc Welding Machine in a steel structure facility:  (Fig.2)

1)     By means of travel cart, the assembled and tack welded H beams from the previous station of H Beam Assembly Machine are put on the 60° Hydraulic Overturning Rack;

2)     By means of the 60° hydraulic overturning rack, the H Beam is turned into 45° fillet welding position for demanded orientation in the LHC Column type I Beam SAW Machine;

3)     During SAW welding stage in the LHC H Beam Welding Machine, and controlled with automatic arc seam tracker, the welding torch moves in the three axes of X/Y/Z, making precise alignment on welding seam all the time: (Fig.3) 

4)     The definition on the X/Y/Z axis in LHC Column type H Beam Welding Machine:

a)       X Axis in LHC H Beam Welding Machine:

      i.           This is for modulating the welding torch transverse movement along the long beam of the machine body;

     ii.           This movement can be controlled with handwheel (It is true with LHT T frame H Beam Gantry Welding Machine and LHAZ& LHAC gantry frame I Beam Submerged Arc Welding Machine also). Please check below picture marked in red color round: (Fig.4) 

    iii.           Note: Some customer request motor control this direction movement. Under such condition, we install a motor on the transverse beam, and have toggle switch on the operating pendant to manipulate it;

b)      Y Axis in LHC H Beam Welding Machine:

This is for controlling the welding torch vertical movement along welding arm, motor drive. It is accomplished with toggle switch on operating panel of the LHC Column type H Beam Welding Machine;

c)       Z Axis in LHC H Beam Welding Machine:

This is for managing the column trolley traveling forward and backward along the rail during working process (Including both SAW and idle running) of the LHC I Beam SAW Machine: This movement is realized with trolley travel.

2.     How to Keep Stability in Column structure of LHC H Beam Welding Machine?

1)      As can be checked from its structure, for this LHC model Column type I Beam Welding Machine, the machine body of trolley-column-beam has two apparent “issues”:  (Fig.5)

a)       The moving trolley structure is not as stable running as the gantry frame structure in LHA series H Beam Gantry Welding Machine, or the T frame in LHT I Beam SAW Machine. At least looks like this;

b)      The moving trolley structure has smaller area for putting function components compared with LHA gantry and LHT T frame I Beam Welding Machine;

2)      Consequently, to make stable running in both SAW welding period and idle travel stage in the LHC Column type H Beam Welding Machine, and do not have a cramped deployment,

Wuxi JACK takes below actions in designing and manufacture of LHC Column type I Beam SAW Machine:

a)       The moving trolley is double drive with double shaft in VFD (variable frequency drive) manner;

b)      Welding speed is adjusted with turning knob within 10-fold range, and displayed in digital on operating pendant of the LHC model I Beam Submerged Arc Welding Machine;

c)       Instead of put on the trolley or on the beam, control board of the LHC Column type H Beam Welding Machine is integrated inside column, with operating pendant fit on the door. Check below picture marked in red color square frame: (Fig.6) 

d)      Trolley base has 30cm height, with transmission units of motor reducer fit inside. This also increases stability of the moving trolley in the process of LHC Column type I Beam SAW Machine working;

e)      The transverse overhang beam is kept as short as possible: extension 1500mm.

3.     Technical Parameters of LHC model Column type H Beam Welding Machine:

Below are specifications of this LHC Column type I Beam Welding Machine: