GY- Series CNC Dynamic Beam Gantry Moving
Frame-typeBoring and Milling Machining CenterGY-40A
GY-45A GY-50A GY-55A
GY-60A GY-65A Machine
Summary: GY series machine tool consists of fixed table
,moving gantry frame and beam.Main structural parts are made
of high strength cast iron and phenolic sand molding with the
good shock absorption and thermal stability.The structure of
the whole machine is characterized by the high rigidity and high
reliability.It is suitable for the processing of heavy and
extra-heavy basic parts in the industries of metallurgy, railway ,
heavy machine shipbuilding and automobile,especially the CNC
processing of all kinds of plane ,curved surface,space curved
surface and hole with large weight and long length.It is
widely applied in the rough and fine processing of complicated
parts of plate,box and chassis. Structure and
Performance: 1.The machine tool can finish 4-axis linkage
curved surface processing and rigid tapping .The addition of
accessory milling head can meet the demand of five-face
processing.It can add the accessory milling head according to
customers' demand of processing and realize the five-face
processing by one time of clamping accordingly.The spindle of
boring and milling head is driven by AC spindle servo motor.The
output terminal of spindle servo motor is directly connected to the
automatic gear box with the top and lower gear.The exterior coder
can realize the fixed-direction and rigid tapping of spindle.
2.Apply the computer-aided engineering (CAE) system to finish the
optimized structure design and enhance the reliability of machine
tool,and the finite element method(FEM) to take the scientific
analysis and optimization of design structure,which can guarantee
the rigidity and stability of the whole mahcine structure. 3.Apply
two-times aging treatment for the cast to guarantee the complete
release of internal stress and the precision persistence of the
machine tool. 4.The operator can take the right-and -left and
vertical adjustment for the operation box during the processing as
required. 5.A set of machine tool can be equipped with double
gantry moving structure to process the same workpiece or different
workpiece in the meantime ,with higher efficiency and smaller floor
area. 6.The hydraulic and electrical control system are located in
the maintenance platform in the back of beam, convenient for the
maintenance. 7.The guides of key parts,such as the bed guide and
beam guide,all adopt the freely extensible cover to keep the guide
form the external pollution and damage and prolong the service
life. 8.Both sides are equipped with the chain-type chip
conveyor,which can collect the scrap iron after the processing and
transfer it to the cart in the front of the machine tool.
Guide Type: 1.Y-axis,W-axis traverse slide ,transverse
guide and slide wedge surface all adopt the filming treatment to
enhance the precision and service life of Y and W-axis guide.
2.Z-axis when being equipped with the square ram,it adopts the
rectangle sliding guide. 3.When being equipped with the
whole-wrapped sliding block,it adopts the static-pressure guide.
4.X-axis adopts the constant flow static-pressure guide with the
high bearing capacity,strong abilities of shock proof and shock
absorption,good presicion stability and long service life. 5.The
fixed displacement multi-stage pump with the open-type constant
flow static-pressure guide can provide the hydraulic oil with the
constant flow. 6.Hydraulic lock mechanism of beam and vertical ram
guide. 7.The beam adopts the composite structure of rectangle
up-and-down stage solid guide and rolling guide to neutralize the
disturbing moment caused by the offset of center of gravity of
spindle box's boring and milling head and traverse slide .The upper
guide and traverse slide adopt the multiple rolling mechanisms with
the mechanical unloading structure,Y-axis traverse slide
,transverse guide and slide wedge all adopt the filming treatment
to enhance the precision and service life. Feeding
Drive:1.Adopt AC servo motor with the direct connection to the
precision planet reduction box to drive the ball screw rod.Equipped
with the screw rod supporting device,it can avoid the distorted
falling of screw rod affected by the gravity(G40/G45MA). 2.Adopt
two sets of AC servo motor with the direct connection to the
precision planet reduction box to drive the double gear-rack gear
mechanism.Eliminate the backlash by the electric control and
achieve the linear movement of transmission gear and rack toothing
driven shaft(G50/G55/G60/G65MA). 3.W-axis is equipped with the
reduction box and motor with the internal contracting brake to
guarantee the stability of beam during the processing. 4.Three axes
can all adopt the precision greating scale to realize the
fully-enclosed position feed-back ,precision of 3-axis location and
repeated location. 5.Double motor backlash elimination ,control the
clamping status between the driving s
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