CNC Drilling Machine for Graphite Blocks - GD2018/4

Applicable industry：Used for drilling holes on graphite block, it adopts multiple spindles with high working efficiency and high precision.
Machine Construction
● It consists of main worktable, gantry, sliding sleeve drilling heads, guiding device of cutting tools, electrical system and chip removal system.
● The worktable is used for clamping and positioning of workpiece, there is T-slots on worktable for workpiece clamping easily. The worktable is casting structure and go through annealing to remove internal stress, can ensure long-term use without any deformation. The base saddle of worktable is installed ball screw and linear guide, driven by a servo motor for X direction. It installs telescopic stainless steel shield at both ends of worktable, which can play good role in protection and in keeping good appearance.
● The gantry is welding parts, can ensure long-term use without any deformation. Two sets of sleeve-type drilling heads are installed on the gantry beam, driven by the linear guide, two sets of servo motors and ball screw respectively drive drilling heads for Y direction. On both sides of gantry column a set of sleeve-type drilling head is installed respectively, driven by the servo motor and ball screw, can move up and down at V axis, so that to process at diameter direction.
● Sleeve-type drilling head is installed on the sliding plate, adopts lengthened guiding, driven by servo motor and large module gear rack to improve the feeding speed. The spindle and the spindle drive motor is directly connected, the sleeve simultaneously goes ahead with the motor, and guided by the linear guide, which is to ensure driving effectiveness, and can also play a role in spindle positioning. Rotating speed of spindle adopts stepless adjustment.
● The guiding device of cutting tools plays a supporting role in long tool’s processing, driven by servo motor and ball screw, and guided by the linear guide, automatically move to the positioning location according to drilling position change, to suit position changes in diameter direction.
● Electric system is controlled by PLC and upper computer, upper computer facilitates to storage and input of workpiece processing program, easy operation. Software platform is WINXP, friendly interface with powerful programming function. The workpiece’s size can be input by keyboard and USB interface, and the CAD / CAM can convert directly.
● There are two spiral chip- removals (optional) at two sides of worktable, collecting metal chips.
● Key mechanical, hydraulic pressure and electrical components are chosen from famous cooperation domestic and abroad.

Main Technical Specification:
Model GD2018/4
Worktable (L x W) (mm) 2000X1800
Drilling spindle Quantity 4
Morse taper of spindle 4#
Max. diameter of drilling (mm) φ50
Rotating speed(rpm) 600—1800
Motor power(kW) 2.2
Sleeve stroke (mm) 2X950/2X600
Feeding speed(m/min) 0-10
Feeding servo motor power (kW) 1
Longitudinal movement of worktable
(X axis) X axis stroke (mm) 2000
Movable speed of X,Y axis (m/min) 0-10
Servo motor power of X axis (kW) 2
Transversal movement of upper drilling head
(Y1,Y2 axis)
Max. space between two drilling heads (mm) 1800
Y axis stroke (mm) 1400
Movable speed of Y axis (m/min) 0-10
Servo motor power of Y axis (kW) 1
Up and down movement of side drilling head V axis stroke (mm) 510
Movable speed of V axis (m/min) 0-10
servo motor power of V axis (kW) 1
Guiding device of cutting tools
(Q1,Q2 axis) Q axis stroke (mm) 900
movable speed of Q axis (m/min) 0-10
servo motor power of Q axis (W) 400
Chip-removal (optional) Type of chip-conveyor spiral
Chip-removal speed(m/min) 1
Motor power of chip-conveyor (kW) 2×0.5
Electrical system Control system PLC + upper computer
CNC axis 11
Total motor power(kW) Approx. 21
Overall dimensions (L×W×H) (mm) Approx.4900X8600X3700
Weight (ton) Approx. 18