Deep Hole Drilling And Boring Machine Tool

TSK2120Ax1000mm Deep hole drilling and boring machine

 

 

1.Machine Brief Summary

 

1.1Processing Capacity

Drilling diameter range: Φ25–Φ100 mm

Boring hole range: Φ40–Φ200 mm

Workpiece OD range: Φ60–Φ400 mm

1.2 Machine Functions

Drilling: BTA drilling method - chips discharged backwards through the tool holder.

Boring: Push boring method - chips discharged forward through the workpiece bottom hole.

1.3 Main Structure & Components

Main parts: machine bed, headstock, oil pressure head, drill bar support rest, drill box, sliding guide rail, rack and pinion, coolant system, control system, electric cabinet, workpiece carrier, etc.

Workpiece clamping: Manual three-jaw chuck (headstock) clamps one end; cone disc on oil pressure head automatically tightens the other end.

Control system: PLC.

Z axis: Longitudinal feed of drill box - servo motor drives rack and pinion via reducing mechanism.

X axis: Oil pressure head servo tightens workpiece - servo motor drives rack and pinion via reducing mechanism.

Basic parts (bed, box body, carriage, etc.): Precision-cast from super cast iron, twice aging-treated after casting to eliminate stress, stabilize structure/size, and improve mechanical properties.

1.4 Headstock

Drives workpiece rotation; fixed at left end of machine bed.

Manual three-gear, stepless speed within gear; servo spindle motor drives spindle via belt and gear box; manual three-jaw chuck mounted in front for clamping.

Gears: precision-ground, high-frequency quenched - high strength, hardness, wear resistance, fatigue limit; withstand alternating/shock loads.

External lubrication oil tank for circulating gear/bearing lubrication, with low liquid level alarm.

Button board on headstock: spindle jog, feed forward, feed backward, emergency stop.

 

1.5 Oil Pressure Head

Guides cutting tool, supplies cutting oil, supports drill bar.

Servo motor drives axial movement to adapt to different workpiece lengths and to tighten/loosen workpiece; works in torque or position mode.

Rotary bearings inside box - good rigidity, high rotation accuracy.

Rotary seal on outside of right end for easy maintenance.

Drill bar support sleeve on right end; guide sleeve, cone disc, oil shield on left end (cone disc positions workpiece, guide sleeve guides tool direction).

Oil shield is push-pull structure; oil retention mounted underneath so cutting oil returns to tank.

1.6 Drill Box

Drives cutting tool rotation; installed on feeding carriage.

Manual three-gear, stepless speed within gear; servo spindle motor drives spindle via belt, belt pulley and gear box.

Tool shank connection sleeve at left end of spindle for clamping tool; chips removal bucket at right end for chip discharge.

Gears: precision-ground, high-frequency quenched - same high-performance properties as headstock gears.

External lubrication oil tank with low liquid level alarm.

1.7 Drill Bar Support Rest

Supports the drill bar.

Integrated high-rigidity structure; support sleeve absorbs impact and vibration during processing.

Automatic pullback mechanism - when returning the tool, the feeding carriage automatically pulls the rest back to its initial position.

1.8 Coolant System

Mainly composed of cooling pump, chips box, oil tank - supplies sufficient cutting oil for deep hole processing.

Oil tank: fully welded with high-quality steel plates; retractable protective cover between chips boxes prevents debris falling into tank.

Pressure, liquid level, oil temperature, and flow rate displayed digitally on control station.

1.9 Feeding Carriage

Drives cutting tool axial movement.

Sliding guide surface lubricated timely and quantitatively by auto lubrication station.

Button board on carriage: drill box spindle jog, feed forward, feed backward, emergency stop.

1.10 Lubrication System

Feeding carriage sliding guide rail: automatic lubrication station, timed/quantitative, with low liquid level alarm.

Headstock bearings/gears: independent external oil tank circulating lubrication, with low liquid level alarm.

Drill box bearings/gears: independent external oil tank circulating lubrication, with low liquid level alarm.

Oil pressure head carriage and drill bar support rest carriage: manual lubricating pump.

1.11 Workpiece Carrier

Used for workpiece pre-positioning; operator places workpiece on carrier first, then after clamping/positioning the workpiece separates from the carrier.

V-shaped frame manually lifted/lowered using a T-shaped screw.

1.12 Center Frame

Supports workpieces.

Three-point closed center frame structure: two rollers at bottom, one roller at top; the two lower rollers adjust lateral position via a screw.

 

2. Machine main parameter:

 

3. Machine main configurations list:

 

4. Machining accuracy:

4.1 Rough boring and drilling hole :

Hole size accuracy : IT9~11

Surface roughness : Ra6.3~ Ra 12.5μm

Hole skewness:：0.5mm/1000mm

4.2 Precision boring hole :

Hole size accuracy: IT8~9

Surface roughness: Ra1.6-3.2μm

 

 

Contact us:

Kaylee

Email: guanlu@dzguanlu.com

Whatsapp: +86 13645342769

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