We have developed a 3 axes Milling Machine, which can also be used as a portable CNC milling machine. This machine has the capability of a large VMC at the cost of a small VMC. The machine is inbuilt with linear, circular and helical interpolation capability. Any kind of machining, be it slots,  face milling, profile machining, thread milling, drilling or tapping can be executed on this machine. The technical specifications of this machine is given below:

TECHNICAL SPECIFICATIONS:

Machining Capabilities
Drilling Capacity	Solid drill of upto Ø 32 mm in steel
Milling Capacity	Ø200 mm cutter x 2 mm DOC in steel
X axis (Longitudinal slide)
Stroke	1800 mm
Guideway details	Ground LM guides and blocks
Rapid traverse rate	5000 mm/min
Feed traverse rate	Upto 5000 mm/min with CNC control
Feedback system	Servo motor’s internal encoder
Motor Power	7.2 Nm
Drive system	Servo driven in combination with in-line reduction gear box
Ball screw	Ø50mm, 10 pitch, double nut-zero backlash, C3 class, ground and preloaded
Telescopic cover protection	Metallic telescopic covers
Positional Accuracy	±10µm for 300 mm post laser calibration
Repeatability	20µm
Lubrication system for axes	Centralized lubrication system integrated with controls
Slide end stop limit switch arrangement	1st safety precaution is soft limit in servo program, 2nd safety precaution is multiple plunger type limit switch which ensures fail proof stopping
Y axis – Cross Slide
Type	Moving slide type
Stroke	300 mm
Guideway details	Ground LM guides and blocks
Rapid traverse rate	5000 mm/min
Feed traverse rate	Upto 5000 mm/min with CNC control
Feedback system (Optional)	Servo motor’s internal encoder
Motor Power	4.8 Nm
Drive system	Servo driven in combination with in-line reduction gear box
Ball Screw	Ø50mm, 10 pitch, double nut-zero backlash, C3 class, ground and preloaded
Positional Accuracy	±10µm for 300 mm post laser calibration for CNC machine.
Repeatability	10µm
Bellow cover protection	collapsible bellows
Lubrication system for axes	Centralized lubrication system integrated with PLC
Slide end stop limit switch arrangement	1st safety precaution is soft limit in servo program, 2nd safety precaution is multiple plunger type limit switch which ensures fail proof stopping.
Z axis – Vertical Stoke
Stroke	300 mm
Guideway details	Ground LM guides and blocks
Rapid traverse rate	5000 mm/min
Feed traverse rate	30-5000 mm/min
Feedback system (Optional)	Servo motor’s internal encoder
Motor Power	4.8 Nm with brake
Drive system	Servo driven in combination with in-line reduction gear box
Ball Screw	Ø50mm, 10 pitch, double nut-zero backlash, C3 class, ground and preloaded
Positional Accuracy	±10µm for 300 mm post laser calibration.
Repeatability	10µm
Slide end stop limit switch arrangement	1st safety precaution is soft limit in servo program, 2nd safety precaution is multiple plunger type limit switch which ensures fail proof stopping
Slide cover protection	Collapsible bellows
Spindle Head & Spindle drive
Tool clamping taper of spindle	BT-50
Tool Locking system	Through disc spring stack and declamping through hydro-pneumatic cylinder
Capacity of tool holder	max Ø200 mm cutter
Spindle Bearing configuration	Match pair angular contact bearings
Spindle speeds	Upto 300-1600 RPM through VFD interfaced AC induction motor
Spindle drive	Timer belt driven. No gear drive involved.
Main Spindle motor rating	10 HP
Other Equipment
Operators control station	Will be provided
Chip Conveyor (Optional)	Will be provided.
Coolant tank (Optional)	Min. 200 liter capacity.
CNC controller (Optional)	Siemens – Sinumerik 808 D Advanced M
Servo Motors (Optional)	Sinamic IFK6 series
Drive for axes	Sinamic V70
MPG	Provided with Machine
VFD	ABB
AC induction motors	KEC/ABB
Limit Switches	Teknic, Siemens
Major Switchgear elements	Schneider/ Siemens
Bearings	SKF/RHP/FAG/NIBC/TPI
Lubrication system	CENLUB make
LM guides	HIWIN
Ballscrews	HIWIN/SHUTON/KORTA
Cables	Finolex

 

Video: