Nagel TBT Tiefbohrtechnik BW50-1 CNC Deep Hole Gun Drilling Machine

Year of Mfg: 2004

CNC Control: Fanuc 18i-M

Workpiece: Die Plates

Technical Data of the Machine:

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Travels:

X Axis: 30"

Y Axis: 30" 

Z Axis: 12"

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Table: 24" x 24"

Application Method:    Gundrilling

Method: Rotating tool standing workpiece on special fixture

Drilling Unit:

Drill unit type: BW50-1

Spindle type: Frequency controlled motor spindle

No. of spindle: 1

Kind of spindle drive: Inf. Variable

Spindle speed: 1,000 - 25,000 rpm

Spindle lubrication: Oil mist

Coolant Equipment:

Type DF15: free standing

High Pressure pump: Single

Pressure monitoring: Yes

Chip handling: Chip pan

Filtering: Double cartridge filters

Machine Description:

01      Deephole drilling machine

01.01   (1) Machine Base BW50 SO

In welded fabrication. Bottom side with leveling elements for machine

installation.

01.02   (1) Vertical column

For mounting of the drill unit.  Designed with precision linear roller

guideways. Axis is executed with a high-resolution glass scale.

Vertical movement 20"

01.03   (1) Deep Hole Drilling Unit ML50

Drilling Slide:

In rigid design, for reception of spindle unit.

Slide guiding with precision linear roller guides. Slide drive for

axis by servomotor and precision heavy-duty re-circulating ball screw.

Spindle Unit:

with variable speed regulation. Spindle bearing with high-precision,

pre-loaded angular bearings. Spindle nose with connection for tool

holder.

Drill Bushing Carrier:

Fixed assembled onto the drilling slide. Removable Plexi-glass covers

for observation of chip discharge.   Drill bushings are movable for

providing full contact against the workpiece during the drill

operation.

01.04   (1) Tool Reception for Drill Spindle 

Fixed integrated in the spindle nose of the spindle.

Designed for the reception of standard gundrills.

01.05   (1) Oil Supply

for coolant supply through the spindle.  Designed for handling coolant

pressures of up to 2,300 PSI.

01.06   (1) Workpiece slide

NC Controlled cross slide unit.  With mounting area for workpiece

fixturing. Cross slide axis with high-resolution glass scale. 

Sideward movement 20"

01.07   (1) Workpiece fixture plate

Rigid designed workpiece angle plate for clamping workpieces of

various thicknesses.

Deep hole drilling specific program sequence for

" automatic operation,

" manual operation

" tool changing position

Process monitoring systems include:

" Cycle counter for tool change intervals

" Spindle power monitoring for tool wear and tool breakage monitoring

" Coolant pressure monitoring

03      (1) Coolant Equipment

High pressure and filtering system. Type DF15 SO.  Designed as a

stand-alone system.

03.01   (1) Coolant tank      

single-wall sheet steel tank for coolant oil.  Chamber with separation

walls, equipped with level indication

03.02   (1) Pre-filtering and chip removal.

        Pre filtering and chip removal by means of a chip pan

03.03   (1) Fine filtering.

        Fine filtering of the re-filtered coolant by means of a cartridge

system.

03.04   (1) High pressure pump

complete with drive and pump carrier.

03.05   (1) Coolant pressure regulation

03.06   (1) Coolant pressure monitoring

03.07   (1) Remote chiller for temperature control of the coolant