Bone nail drilling machine

Technical Items

Parameters

Drilling diameter range

3mm-30mm

Max.Hole drilling depth

2500mm

Hole length-diameter ratio

100:1

CNC control system:

GSK syste

Machine bed base

l HT300 iron, resin sand precise casting.

l Twice timing treatment, high rigidity and stability.

Z-axis guide rail

l Adopt made in Taiwan linear guide rails, (Japan THK linear guide rail is optinal)

l High transmission accuracy,

l Prompt response.

Worktable

l T-slot worktable,workpiece fixture is installed on the working table

l Workpiece loading/unloading by manual

Drill bar rest

l 4 groups,

Function:

1.Supporting the drill bar,

2.Ensure drilling accuracy,

3.Reducing the drill bar vibration.

4.It can meet the maximum drilling hole length diameter ratio 200:1;;It adopts drill bar support linkage mechanism.

Guiding frame

l Driven by hydraulic system

Function

1.Guiding the drill bits,

2.Sealing the high pressure cutting oil,

3.Chips removing, cutting oil returning,.

Center frame

1 groups, It is used for job support.the upper cover of the center frame is manually opened and closed.

Headstock

l It is used to drive job rotation, using ordinary motor to drive spindle rotation through the reducer, spindle speed fixed at 85r/min, the main motor power 1.1kw, a motor drive two spindle rotation.

Z-axis

l Servo motor drive screw

l Flexible coupling

l rack and pinion structure

l Infinitely variable speeds

Feed speed range:5~500mm/min

Rapid moving speed:3000mm/min

Feed motor torque:10Nm

Drill box structure

Iron casting box, main spindle, NSK bearing, American Deublin rotary connector, synchronous belt, synchronous belt wheels, main motor(Servo spindle motor).

Drill box motor

l5.5KW(servo spindle motor) for single spindle gundrilling machine ,Rotary speed range 500- 5000r/min(stepless)

l The end face of the drill box adopts Deublin rotary connector.

Drill box feature

l The main motor drives the belt wheel to rotate.

l The synchronous belt drives the main spindle and drill bit rotate

l The main spindle is front driven structure, to prevent oil splashing on the motor, to improve the motor life.

Drill bits connection

l The gun drill bits handle is fixed on the front end of the drill box main spindle

l There are 3 screw holes on the front face of the main spindle for standby

Coolant tank

Floor Mounted

Coolant system flow

150L/min(adjustable) for single spindle gundrilling machine,100L/min(adjustable) for single spindle gundrilling machine,

Coolant tank volume

About 1000L(dirty oil tank and clean oil tank separetely)

Coolant pump motor power

7.5kw (inverter motor) 

Coolant system pressure range

10MPa(adjustable)

Paper filter and magnet filtering

20μm level of purity

Cutting oil

810 cutting oil (Chinese brand)/deep hole gun drill cutting oil.

Chain plate chips convoyor

Automatically

Lubrication system

Automatic lubrication station, supply lubricating to the drill box, ball screw, linear guide rail and sliders.

Lubrication system pressure

0.8MPA

Lubrication tank capacity 

1.5L

Oil level sensor

Low level sensing-light alarm and bell alarm.

Lubrication oil type

Mineral base oil

Machine controlling system

GSK

Electrical cabinet

l Main components with Schneider brand.

l Electrical cabinet surface is power coating treatment.

l With dust sealing strips.

Air circulation

Exhaust fan(two sets)

Supply voltage

3 phase, 380V, 50HZ (Or follow customer’s require)

Total connected power