We have manufactured a 3 axes Milling, Drilling and Tapping Machine, which can be used to machine i Beams, H beams, Box beams and other steel materials. The 3 liner slides are controlled by worm reduction gear box – AC induction motor routed through vector VFD to obtain stepless speed variation from 30 mm/min to 1000 mm/min. All slides have a DRO to find exact position of the slides. The ram type milling head mounted on the vertical carriage has extra rigidity than conventional slide mounted milling head due to its square box design locked in with taper jibs.

Technical Specification of this machine is given below:

Machining Capabilities
Drilling Capacity in Steel	Solid drill of upto Ø 32 mm and later steps of 10 mm can be done upto a size of Ø60 mm
Tapping Capacity in Steel	Upto 48 mm with tapping attachment
Milling Capacity in Steel (max)	Ø250 mm cutter x 3.5 mm depth of cut
X axis – Longitudinal Slide
Stroke	2000 mm
Guideway details	Both – male & female sliding surfaces are all cast iron. Upon request LM guides or case hardened guides with female turcite lining can also be provided.
Rapid traverse rate	1000 mm/min
Feed traverse rate	30-1000 mm/min
Ball screw size (dia, length, pitch, double nut)	Rolled ball screw. (Dia Ø63 mm, 10P, double nut) with a pitch accuracy of 50µm
Motor Power	5HP
Gearbox reduction ratio	01:20
Telescopic cover protection	Metallic telescopic covers/bellows
Readout Scale (Least count, length, type)	±10µm, 2000 mm, Optical linear scale.
Lubrication system for axes	Centralized lubrication system integrated with PLC
Slide end stop limit switch arrangement	Feed end limit switches
Wipers for slide	Provided
Y axis – Vertical Slide
Stroke	1000 mm
Guideway details	Both – male & female sliding surfaces are all cast iron. Upon request LM guides or case hardened guides with female turcite lining can also be provided.
Rapid traverse rate	1000 mm/min
Feed traverse rate	30-1000 mm/min
Ball screw size (dia, length, pitch, double nut)	Rolled Ball screws. (Dia Ø63 mm, 10P, double nut) with a pitch accuracy of 50µm.
Motor Power	5HP
Gearbox reduction ratio	01:20
Clamp / brake for axis	Manual Clamps
Bellow cover protection	Metallic telescopic covers/ collapsible bellows
Counterweight system	Mechanical counter weight system with dead weight will be provided
Readout Scale (Least count, length, type)	±10µm, 1000 mm, Optical linear scale
Lubrication system for axes	Centralized lubrication system integrated with PLC
Slide end stop limit switch arrangement	Will provide feed end limit switches.
Wipers for slide	will be provided
Z axis – Cross/Ram slide
Stroke	500 mm
Guideway details	Both male & female sliding surfaces are all-cast iron
Rapid traverse rate	1000 mm/min
Feed traverse rate	30-1000 mm/min
Ram size	minimum 200 square
Ball screw / rack & pinion details	Rolled Ball screws. (Dia Ø53 mm, 10P, double nut) with a pitch accuracy of 50µm
Motor Power	3HP
Gearbox reduction ratio	01:20
Clamp / brake for axis	Manual clamps
Auto Feed / Manual Feed Selection	Will be provided
Lubrication system for axes	Centralized lubrication system integrated with PLC
Readout Scale (Least count, length, type)	±10µm, 1000 mm, Optical linear scale
Slide end stop limit switch arrangement	Will provide feed end limit
Wipers for slide	will be provided

 

Spindle Head & Spindle drive

Tool clamping taper of spindle	ISO 50
Tool Locking system	Manual through draw-bar.
Capacity of tool holder (weight / size)	max Ø250 mm cutter
Spindle Bearing configuration	Match pair angular contact bearings
Lubrication system of head	Molybdenum Sulfide Grease packing for life (ISOFELX NBU 15 of Kluber make)
Spindle speeds	100-600 RPM
Spindle speed range selection	VFD interfaced motor in combination with lever operated change gear
Lubrication of spindle drive gearbox	Recirculating oil bath
Main Spindle motor rating	10HP
Hinging arrangement to align the spindle axis	Provided with spigot and screws to level
Work Holding Device
Dimensions of work holding table assy	approximately 2000x3200x200 mm (all cast iron)
Capacity to mount 2 parallel shafts of Ø 800 mm	Yes
V blocks no of sets & size capability	Two sets of Ø125 to Ø400 mm
V blocks fixing system on work table	On guide slot(tennon slot) with T slots on either sides
Job clamping system on V blocks	Manual with T bolt
Foundation system for work holding device and jacking arrangement for alignment	J bolts for grouting and leveling nut for alignment (min M24)
Other Equipment
Operators Platform	Included
DRO readout unit for X, Y & Z axes scales	Provided
Operators control station	Provided
Electrical Panel	Provided
Drives for X,Y,Z & spindle axes	Common VFD interface for all 3 axes and 10 HP drive for spindle
Drag Chains for X & Y axes	Provided