Deep Hole Drilling And Boring Machine

                                                                      TSK2125DZ CNC deep hole drilling and boring machine

 

 

CNC deep hole drilling and boring machine tool appearance diagram

For reference only, the actual product shall prevail

CNC deep hole drilling and boring machine tool Overview

2.1 Machine tool processing scope

Drilling range: Φ25 ~ Φ254mm

Boring range: Φ60 ~ Φ254mm

Workpiece outer diameter range: Φ50 ~ Φ560mm

Workpiece length range: 500-5000mm

2.2 Machine tool functions

Working mode of machine tool: workpiece rotation, tool non-rotation, tool feed; Workpiece rotation, tool rotation, tool feed.

Drilling: BTA drilling method, cutting oil is supplied into the tool through the gap between the oil pressure head, the tool bar and the hole wall, and discharged through the inner hole of the tool bar with chips.

Boring: Cutting oil is fed into the tool through the gap between the oil pressure head, tool bar and hole wall, and is discharged through the bottom hole of the workpiece with chips. During machining, the tool moves close to the headstock.

2.3 CNC deep hole drilling and boring machine tool main structure of machine tool

2.3. 1 Main components of machine tools

Bed body, Headstock, oil pressure head, tool bar bracket, drilling box, sliding guide rail, gear rack and pinion, cooling system, control system, electric box, workpiece bracket, etc.

2.3. 2 Workpiece clamping

The manual three-jaw chuck on the headstock clamps one end of the workpiece, and the oil pressure head cone plate automatically tightens the other end of the workpiece.

CNC deep hole drilling and boring machine tool Workpiece clamping diagram

2.3. 3 Machine tool control system

Control system: Fanuc

Z-axis: the longitudinal feed motion of the drilling box, and the servo motor drives the rack and pinion mechanism through the reduction mechanism.

X axis: The oil pressure head servo tightens the workpiece, and the servo motor drives the rack and pinion mechanism through the reduction mechanism.

2.3. 4 The basic parts such as box, bed, and pallet are precision cast of high-quality cast iron. After the casting is completed, they undergo two aging treatments to eliminate internal stress, stabilize the structure and size, and improve mechanical properties.

2.3. 5 Bed

The bed body is cast with resin sand, and after casting, it is normalized. The bed adopts a split structure, which is assembled together by high-strength bolts and positioned by taper pins.

Adopt double rectangular sliding guide rail, precision grinding, guide rail surface quenching hardness is high.

The bed is equipped with a helical rack for cutter feed transmission, and the rack is precisely machined and quenched. The machine tool has large load capacity, sufficient rigidity and stable transmission.

V-shaped inclined bars are arranged inside the bed body, which has high support strength and is not easy to deform; The outer wall of the bed directly supports the guide rail, which can bear large cutting force. The rigidity of the guide rail is good, and it is not easy to deform and shake during processing, which is conducive to improving the machining quality and efficiency of the machine tool.

An oil return groove is cast around the bed body, an oil retaining cover is installed on the oil return groove, and the cutting oil on the bed body is automatically returned to the cooling oil tank.

2.3. 6 Headstock

Is used to drive the workpiece to rotate and is fixed at the left end of the bed body.

Manual 3 gears, stepless speed regulation in gears, servo spindle motor drives the spindle to rotate through belt and gearbox, and a manual three-jaw chuck is assembled at the front end of the headstock for clamping workpieces.

Gears are precision grinded; The tooth surface of the gear is quenched by high frequency, so that the gear can obtain high strength, high hardness, high wear resistance and high fatigue limit, and can bear relatively large alternating load and impact load.

The external lubricating oil tank is used for cyclic lubrication of gears and bearings, and a low liquid level alarm device is installed in the oil tank.

A button plate is installed on the headstock, which has the functions of spindle inching, feeding forward, feeding backward and emergency stop.

Sketch diagram of headstock appearance

2.3. 7 Oil pressure head

Used for tool guidance, tool oil supply, tool bar support.

The servo motor is used to drive its axial movement, which can adapt to the processing of workpieces of different lengths, and tighten and loosen the workpieces. The servo motor can be operated in torque mode or position mode.

The oil pressure head slewing bearing is installed inside the oil pressure head body, which has good rigidity and high slewing accuracy.

The rotary seal is installed on the outside of the right end of the oil pressure head body, which is convenient for maintenance.

Install the tool bar support sleeve at the right end of the oil pressure head, which is used to support the tool bar.

The left end of the oil pressure head is equipped with a guide sleeve, a conical disc and an oil retaining device, the conical disc is used for positioning the workpiece, and the guide sleeve is used for guiding the tool.

The oil retaining device has a push-pull structure, and an oil receiving box is installed at the lower part of the oil retaining device, so that the cutting oil flows back to the oil tank.

Appearance diagram of oil pressure head

2.3. 8 Drilling box

Used to drive the cutter rotating, mounted on the feed pallet.

Manual 3rd gear, stepless speed regulation in gear, servo spindle motor drives the spindle to rotate through belt, pulley and gear train.

The left end of the spindle is equipped with a toolholder connecting sleeve for holding the tool.

A chip discharge bucket is installed at the right end of the spindle for discharging chips.

Gears are precision grinded; The tooth surface of the gear is quenched by high frequency, so that the gear can obtain high strength, high hardness, high wear resistance and high fatigue limit, and can bear relatively large alternating load and impact load.

The external lubricating oil tank is used for cyclic lubrication of gears and bearings, and a low liquid level alarm device is installed in the oil tank.

Appearance diagram of drilling box

2.3. 9 Tool Bar Support

For supporting the boring bar;

It adopts a high-rigidity integral structure, and is equipped with a support sleeve, which can absorb the impact, jitter, etc. generated during processing.

The automatic hanging and pulling mechanism is installed. When the tool is withdrawn, the feed pallet can automatically pull the tool bar bracket back to the initial position.

 

2.3. 10 Cooling system:

It is mainly composed of cooling pump, chip receiving box, oil tank, etc. to provide enough cutting oil for deep hole machining.

On-ground fuel tank, the fuel tank is fully welded with high-quality steel plate.

A chain plate automatic chip removal machine is installed on the oil tank.

The pressure, liquid level, oil temperature and flow rate of cutting oil can be digitally displayed on the control station.

Cooling system diagram

2.3. 11 Feed pallets

Used to drive the tool to move axially.

The servo motor drives the double gear structure through the reducer, the rack modulus is 6, and the helical rack.

The automatic lubrication station is used to lubricate the sliding guide rail surface regularly and quantitatively.

A button plate is installed on the pallet, which has the functions of inching, feeding forward, feeding backward and emergency stop of the spindle of the drill pipe box.

Double gear transmission: A servo motor is divided into two transmission gears through a gear train, and the rack on the bed is used to drive the cutter forward and backward.

2.3. 12 Lubrication System

The sliding guide rail surface of the feed pallet is lubricated regularly and quantitatively by the automatic lubrication station, and has the function of low liquid level alarm.

The bearings and gears of the bedside box are lubricated by independent external oil tank circulation and have low liquid level alarm function.

The bearings and gears of the drill pipe box are lubricated by independent external oil tank circulation and have low liquid level alarm function.

The oil feeder support plate and the knife bar support support plate are lubricated by manual lubrication pump.

2.3. 13 Workpiece carrier

Used for workpiece prepositioning.

The operator first places the workpiece on the workpiece bracket, and after the workpiece is clamped and positioned, the workpiece leaves the bracket.

The V-shaped frame on the workpiece carrier is manually raised and lowered by using the T-shaped screw.

Workpiece carrier schematic diagram

2.3. 14 Center frame

For supporting workpieces; Three-point closed central frame structure, two rollers below and one roller above; The two rollers below adjust the lateral position by the lead screw.

Schematic diagram of center frame

CNC deep hole drilling and boring machine tool main parameters

 

Contact : Lean Lee 

Mob : 008615153489973

Email : export@dzguanlu.com

 

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