Single Spindle Gun Drilling Machine

Single Spindle Gun Drilling Machine

Single spindle/double spindle/four spindles gun drilling machines are availble. Both cutting tool and job could be rotating. Unique design,good performance.......

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Gun drilling machine
The machine has many different application filed: Molds industry,Hydraulic fields,Automatic parts fields,textile fields,medical apparatus and instruments and Electric and turbine fields.

Gun drilling machine detail Introduction

Technical Items

Parameters

Drilling diameter range

3mm-20mm

Max.Hole drilling depth

1000mm

Machine total power

 22KW

Hole length-diameter ratio

100:1

CNC control system:

Siemens 808 system

Main servo axes for gun drilling machine:


     Z-axis

Servo motor drive ball screw through elastic coupling to achieve speed stepless
Flexible coupling 
Ball screw structure
Infinitely variable speeds

Feed speed range:5~500mm/min

Rapid moving speed:3000mm/min

Feed motor torque:7.7Nm

Guide linear: Made in Taiwan, The linear sliders are with sealing.
Z-axis: Servo motor pushes the lead screw rotating, drives the drill box forward and backward movement, to achieve the gun drill bits feeding and drilling. 

Single spindle gun drilling machine 详情页935_副本

Drill Box

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

3.7KW(servo spindle motor) for single spindle gun drilling machine ,Rotary speed range 500- 5000r/min(stepless)
The end face of the drill box adopts Deublin rotary connector.

Drill box feature

The main motor drives the belt wheel to rotate.
The synchronous belt drives the main spindle and drill bit rotate ●The main spindle is front driven structure, to prevent oil splashing on the motor, to improve the motor life.

Drill bits connection

The gun drill bits handle is fixed on the front end of the drill box main spindle
There are 3 screw holes on the front face of the main spindle for standby

Single spindle gun drilling machine 详情页1741_副本 Single spindle gun drilling machine 详情页1744_副本

Coolant system of Gun Drilling Machine

Coolant tank

Floor Mounted

Coolant system flow

100L/min(adjustable) for single spindle gun drilling machine,

Coolant tank volume

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

Coolant pump motor power

7.5kw (converter motor) 

Oil chiller motor power

5.5kw

Coolant system pressure range

10MPa(adjustable)

Paper filter and magnet filtering

20um level of purity

Cutting oil

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

Chain plate chips convoyor

Automatically

Mainly consistence

It mainly consists of oil chiller, chip conveyor, paper  filter and frequency conversion pump group. It can adjust the pressure and flow rate of cutting oil according to the hole diameter. and it can display the flow and pressure value. The guide frame adopts side chip removal.

Electrical system

Machine controlling system

Siemens

Electrical cabinet

Main components with Schneider brand. 
Electrical cabinet surface is power coating treatment. 
With dust sealing strips.

Air circulation

Exhaust fan(two sets)

Supply voltage

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

Total connected power

 

Single spindle gun drilling machine 详情页2887_副本 Single spindle gun drilling machine 详情页2889_副本

Gun Drilling Machine drilling accuracy 

Item

Parameters

Hole skewness/deviation tolerance

0.5mm/1000mm

Surface roughness

Ra0.8~Ra3.2μm

Diameter accuracy

IT7~IT11

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