SZJ-1800 H Beam Steel Assembling Machine of Welding Line
H steel is assembled together by two pieces of wing plates and a
piece of ventral shield, the position relation between ventral
shield and wing plate can directly affect qualification rate of H
steel product. To apply SZJ-1800 H steel assembling machine can
position each plate rapidly and accurately, highly improve the
productivity.
This machine mainly consists of door frame assembly, rod system
assembly, hydraulic system assembly (Sino-Italian joint venture),
input and output slide assembly, electrical control system, KN-350
CO2 gas shielded welding machine etc.
The major parts of door frame, such as wall plate, upright post,
beam etc are all welded-structure parts, they have had stress
release treatment with big intensity and light weight, hard to get
distorted. Driving roller, driving pressing roller are both
specialized steel and had special machining treatment, therefore
they have good wearing resistance and high precision.
Positioning centering action of this machine is driven by hydraulic
system. To apply preliminary positioning centering through rod
system, then apply accurate centering and clamping through door
frame assembly. Preliminary rod positioning centering structure
mainly consists of rod cabinet, rod, turning spindle, swinging arm
and guide wheel etc. Swinging arm can be rapidly centered
synchronously by the connection of rod. Wing plate accurate
centering clamping procedure is completed by hydraulic system—minor
gear and rack—minor chain wheel and chain—minor rod drive. Ventral
plate accurate centering clamping procedure is completely by
hydraulic system—minor gear and rack—minor chain wheel and
chain—minor rod drive. Chain wheel tensioning adjustment structure
keeps drive more rapid and accurate. Clamping wheel is slightly
eccentric so it can smicro-adjust the structure and press the wheel
more adhere to the steel plate. Driving pressing roller is also
completed by hydraulic pressure; the whole procedure is convenient,
simple, accurate and operated by electrical control table. The
positioning, centering speed, tensioning force etc can be freely
adjusted by the steel specification and operation skill level. This
machine can weld symmetrical and asymmetrical H steel, asymmetrical
H steel adjustment applies wing plate drive chain loosening and
manual advancing method. Hydraulic drive and special structure of
synchronized machinery positioning and centering guarantees the
accurate ventral plate positioning to all wing plates of different
width. The hydraulic lift on rear beam can line unit, rolling wheel
can be turned for the aligning of wing plate and minor plate to
guarantee the straightness of surface part of the H steel. Welding
gun centering structure is symmetrical on both sides, the two
cylinders can be advanced synchronously (synchronized valve),
welding gun should align places need to be welded in the mean time.
Grounding unit is carbon rod with copper woven band, it can
effectively conduct the electricity to the ground to avoid
electricity voltage flame. Major driving parts apply the drive
method of motor—swing needle wheel speed reducer—driving roller
(front and back conveying roller through minor transition of chain
wheel and chain), the wire speed also known as assembly speed
applies alternating frequency conversion to regulate speed, it can
be selected within the scope of 0.5-6M/min.
This electrical control system consists of PLC code programming
controller and alternating frequency conversion speed regulator and
other new components, it can be programmed into different
applicable procedures on the basis of assembling process
requirements of H steel to implement requested orders. On the
electrical operation panel, working method to manufacture H steel
represents manual, single cycle and auto-cycle.