DEZHOU GUANLU PRECISION MACHINERY CO., LTD.
BTA Deep Hole Drilling Machines

BTA Deep Hole Drilling Machines

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Machine Operation: The machine has the function of drilling,boring,pull boring,trepaning,burnishing.

Machine brief
Drill hole method: Single spindle internal chips removal (BTA method) . This machine is used for the cylindrical workpiece concentric hole processing. Workpiece and tooling rotate oppositely when machine working .
Adopt front chips removal method when boring. It means the chips will flow out from holes on the clamp body of headstock front end.
Workpiece loading and clampingheadstock adopts manual chuck clamping,oil pressure head use taper disc hydraulic clamping.
The machine used guide rail is double rectangular sliding guide rail , which is processed
Drill box spindle is driven by servo main motor ,Main motor power 30kw, high speed shift max.800rpm.
Tooling in feeding adopts servo motor ,servo speed reducer, rack and pinion structure , step less speed can be realized .
Machine equips with two sets drill bar support rest , which is assemble with hitching and pulling structure, pull the drill bar support rest back to original position when the processing finished and returning tooling ; Can also adjust the axial position manually through the rack on machine bed ,but rack and pinion structure should be released by releasing structure under the machine working condition .
Oil pressure head can do axial movement driven by normal motor,reducer device,which can meet the long job length verify;In front of the oil pressure head equips guide bush and taper disc;The oil pressure spindle can axial move max 100mm under the hydraulic system control.
Adopt one set center frame to support the workpiece , workpiece OD range is Φ40~Φ100mm Upper cover of center frame is opened and closed by manualAdjust the axial position manually through the rack on machine bed.
Drill box spindle driven by servo main motor,main motor power is 30kw,high speed shift Max rotation is 800r/min,in front of spindle assemble tile type drill bar connection bush.
Adopts one chain plate chips removal devices to remove the cutting chips .
Coolant system adopts three groups of quantitative pumps,each group is with with flow 100L/min

Machine parameters :

Specification

Parameter

Remark

Working capacity

Drill hole diameter range


Φ30Φ60mm


Max depth of hole


2000mm


Max length of workpiece


2000mm


Workpiece OD range


Φ40Φ100mm


Machine

character

Z axis

Infeed speed range

5500mm/min

Step less



Rapid move speed

3000mm/min



Infeed motor torque

16Nm

Speed reducer

Headstock

Max rotary speed of high gear

800r/min



Motor power

30KW

Servo spindle motor

Drill box

Max rotary speed of high gear

800r/min



Motor power

30KW

Servo spindle motor

Coolant system

Max pressure


4MPa

Adjustable

flow


100200300300L/min

Adjustable