CNC Deep Hole Drilling And Boring Machine TSK2150x12m

1. Machine Tool Overview

1.1 Machine tool processing scope

Drilling range: Φ30 ~ Φ150 mm

Push boring range: Φ40 ~ Φ550mm

Trepanning range: Φ80 ~ Φ550mm

Maximum machining depth: 12m

Maximum workpiece length: 12m

1.2 Machine tool functions

Machine tool processing mode: workpiece rotates, tool does not rotate, tool feeds; Workpiece rotation, tool rotation, tool feed.

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

Push boring: The cutting oil is fed into the tool through the gap between the oil feeder, the tool bar and the hole wall, and is discharged through the bottom hole of the workpiece with chips. During the machining process, the tool moves close to the headbox.

Trepannning: internal oil supply and external chip removal. Cutting oil is supplied into the tool through the inner hole of the tool bar and discharged with chips through the gap between the outer wall of the tool bar and the hole.

The machine has different functions , just need to replace the different cutting

tools .

Solid drilling: To drill a hole on the solid bar with the BTA drill head .

Trepanning hole (Optional): To make a hole on the solid bar by trepanning head,meanwhile a solid core can be achieved . (If the workpiece material is very

expensive, normally choose this method) .

Rough boring : To expand the hole of a tube by the rough boring head . (Ra6.3-Ra12.5)

Fine boring : To improve the surface roughness of inner hole by fine boring head . (Ra3.2-Ra6.3)

Burnishing : To improve the surface roughness of inner hole by burnishing head. (Ra0.2-Ra0.8)

1.3 Main uses and overall layout of machine tools

The machine tool is specially designed to process deep holes of cylindrical and square workpieces. The machine tool bed has strong rigidity and good accuracy retention. It can be adapted to the inner hole machining of large workpieces. The spindle speed range is wide, and the feed system is driven by AC servo motor, which can meet the needs of various deep hole machining processes. The oil feeder servo jacks the workpiece.

1.3. 1 Main components of machine tools

Bed body,Headstock, oil pressure head ,Tool bar bracket, sliding guide rail, rack and pinion, cooling system, PLC control system, electric box, center frame, etc.

1.3. 2 Workpiece clamping

1.3. 2.1 When drilling and boring

The chuck on the headstock clamps one end of the workpiece, and the conical disc on the oil feeder tightens the other end of the workpiece

Workpiece clamping diagram

1.3. 2.2 During Trepanning processing

The chuck on the headstock clamps one end of the workpiece, and the center frame supports the other end of the workpiece.

Trepanning machining workpiece clamping diagram

1.3. 3 Machine tool control system

Control system: PLC control system

Z1 servo axis: the longitudinal feed motion of the drilling box, and the servo motor drives the rack and pinion mechanism through the reduction mechanism.

Z2 servo axis: The oil pressure head servo tightens the workpiece, and the servo motor drives the rack and pinion mechanism through the reduction mechanism.

1.3. 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.

1.3. 5 Bed body (section view)

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 width × thickness of a single guide rail = 180mm × 50mm, and the total width of the guide rail is 800mm;; The bed is equipped with a helical rack (modulus 6), which is used for tool feed transmission. The rack has been precisely machined and quenched to have high guiding accuracy and good wear resistance; The precision rack is installed in the middle of the bed guide for the feeding and quick movement of the pallet. 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.

The periphery of the bed body is equipped with apron protection.

1.3. 6 Headstock

It is used to drive the workpiece to rotate, and is fixed at the left end of the bed body. It has 4 hydraulic gears and stepless speed regulation in the gear. The motor drives the spindle to rotate through the coupling and gear box. The front end of the bed head box is equipped with a manual chuck for clamping the workpiece.

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.

In order to improve the life of gears and bearings, lubricating oil circulation lubrication is used.

1.3. 7 Drilling box part:

It is used to drive the workpiece to rotate. It is installed on the feed pallet. It has 4 hydraulic gears and stepless speed regulation in the gear. The motor drives the spindle to rotate through the coupling and gearbox. The tool holder connecting sleeve at the front end of the spindle is used to clamping the tool bar.

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 withstand relatively large alternating load and impact load.

In order to improve the life of gears and bearings, lubricating oil circulation lubrication is used.

The drilling box has two structural designs: rotating and fixed, which can lock the drill pipe box when the drill pipe is not needed to rotate.

1.3. 8 Closed center frame

For supporting workpieces; Three-point closed central frame structure, with two rollers below and one roller above, and the rollers are equipped with tapered roller bearings; The two rollers below adjust the lateral position by the lead screw; The position of the center frame on the bed guide rail is manually adjusted by rack and pinion. Mainly plays the role of supporting the workpiece. The closed center frame is an auxiliary device for workpiece clamping, which can be used for drilling slender shafts and machining large and long diameters of workpieces.

1.3. 9 Oil pressure head (spindle type structure)

Used for tool guidance, oil supply and 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. Machine tool cooling and hydraulic display instruments are installed on the front of the oil pressure head , so that the machine tool can be dynamically displayed during processing, which is convenient for operators to judge the processing situation of the machine tool.

The servo motor is used to drive the oil pressure head to tighten or loosen the parts, with high precision and high rigidity; The oil pressure head adopts a box structure as a whole, with high precision and high rigidity.

In order to facilitate the operation of the machine tool, the oil pressure head has a unique design. It only needs to replace the corresponding cutting tools and auxiliary tools to realize the switching between drilling and boring. During the drilling or boring process, the oil feeder will not be caused by excessive oil pressure. The oil feeder retreats.

1.3. 10 Feed system:

It is driven by a servo motor, and after the speed is changed by a reduction gearbox, the carriage plate is driven by gears and racks to realize the fast forward and working advance of the carriage plate. The feed is stepless speed regulation, and the speed regulation range is 0.5 ~ 1000mm/min.

1.3. 11 Tool Bar Support

Supporting the cutter bar and controlling the movement direction of the drill pipe; It adopts a high-rigidity integral structure, and is equipped with a support sleeve, which can absorb the impact, jitter, etc. generated during processing.

1.3. 12 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.

Install a telescopic protective cover between the chip boxes on the fuel tank to

cover the fuel tank and prevent sundries from falling into the fuel tank.

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

1.3. 13 Electrical control system:

The main electrical components adopt Schneider brand, which is more stable and reliable. Greatly reduces the failure rate of the equipment and increases the

stability of the machine tool.

1.3. 13 Chip discharge bucket: Recycle iron filings and cutting fluid to prevent cutting fluid from splashing.

When drilling, the internal chip removal method (BTA) is adopted. The cutting oil is supplied from the oil feeder, enters the cutting area through the annular cavity formed by the outer edge of the drill pipe and the machined surface, takes the chips through the inner hole of the drill pipe to the back row (direction of the drill pipe box), enters the rear chip removal pipe, and flows into the chip receiving box.

When boring, the external chip discharge method is adopted. The cutting oil is supplied from the oil feeder, enters the cutting area through the annular cavity formed by the outer edge of the drill pipe and the machined surface, takes the chips to the front row (the direction of the bedside box), enters the front chip discharge

bucket, and flows into the chip receiving box.

1.3. 14 Machine tool lubrication:

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.

1.3. 15 Open center frame

For supporting workpieces;

The lower two rollers, the rollers are equipped with tapered roller bearings; The two rollers below adjust the lateral position through the lead screw; The position of the center frame on the bed guide rail is manually adjusted by rack and pinion.

Mainly plays the role of supporting the workpiece. The center frame is an auxiliary device for workpiece clamping, which can be used for drilling slender shafts and machining large and long diameters of workpieces.

2. Machine tool main parameters

3. Main configuration list of machine tools

4. Machine tool standard

5. Machine tool option

6. Machining accuracy

6.1 Drilling and nesting:

Aperture accuracy IT9-IT11

Surface roughness: Ra6.3 to Ra12.5 μm

Hole center line deflection: 0.5 mm/1000mm 6.2 Rough boring:

Aperture accuracy IT9-IT10

Surface roughness: Ra3.2-6.3 μm

Hole centerline deflection: 0.4 mm/1000mm

6.3 Fine boring:

Aperture accuracy IT8-IT9

Surface roughness: Ra1.6 ~ Ra3.2 μm

7. Machine tool protection measures

Machine tool lubrication oil deficiency protection

Cooling system level and pressure protection

Headstock Motor Overload Protection

Feed motor load protection

Cooling pump motor fault alarm

Fault alarm of lubrication motor in bedside box or drill pipe box Limit protection

8. Technical Documents

9. Machine tool manufacturing and inspection standards

10. Machine tool working conditions

10.1 Power supply: Three-phase five-wire power supply, 380V ± 5%, 50Hz ± 1 Hz.

10.2 Working environment temperature: 0 ℃ ~ 40 ℃. (Non-icing)

10.3 Ambient humidity below 80% (no condensation)

10.4 Altitude: 0 ~ 2000m

10.5 Conditions required for installation site:

Should be avoided from external vibration; Avoid being affected by corrosive gases or liquids; Direct sunlight should be avoided on the surface of the machine tool;

Should stay away from direct strong cold wind or hot air and other air sources; Dust (metal dust, sand, etc.) pollution should be minimized.

11. Machine tool installation and debugging conditions (user preparation)

11.1 Foundation requirements: The user makes the foundation according to the foundation diagram

11.2 Secondary irrigation: The user prepares grouting materials and tools for secondary irrigation

11.3 Incoming power supply: three-phase five-wire power supply, 380V ± 5%, 50Hz ± 1 Hz, the user provides the cable from the workshop power supply to the

electric cabinet

11.4 Cleaning oil and utensils: provide 20 liters of gasoline or kerosene and some

cotton cloth

11.5 Cutting oil: deep hole extreme pressure cutting oil, kinematic viscosity 40 ℃ : 20-25 mm ²/s, extreme pressure agent content ≥ 15%, flash point ℃ ≥ 160, dosage approximately 6700 liters.

11.6 Spreaders and tools prepared by the user for hoisting

11.7 Tools, auxiliary devices and fixtures for machine tool commissioning (if the user has not ordered them).

11.8 Hydraulic station: ISO-L-HM46 anti-wear hydraulic oil, 100 liters

11.9 Lubrication Station: ISO-L-HM32, 270 L

12. Machine tool installation and debugging

12.1 Party B is responsible for providing the foundation drawing and appearance drawing of the machine tool, and Party A shall complete the whole foundation construction according to the foundation drawing and appearance drawing provided by Party B.

12.2 Before the machine tool arrives at the destination of use, Party A shall complete the first irrigation of the foundation (machine tool installation foundation), sufficient foundation preloading and foundation maintenance in advance, and make preparations for the second grouting (machine tool installation and fixation).

12.3 After the machine tool arrives at the destination, Party A is responsible for the hoisting, unloading and storage of the product (to avoid loss and rain erosion, etc.).

12.4 Party B receives the installation and commissioning notice from Party A and arranges personnel to install and adjust the machine tool. After the safety adjustment personnel of Party B have pre-adjusted the machine tool in place and level, they will notify Party A to carry out the secondary grouting of the installation foundation; After the foundation has gone through the maintenance period, it will enter the installation and commissioning process.

12.5 Party B shall send mechanical, electrical, testing and other professionals to Party A's site for machine tool installation and debugging. Party A shall send relevant personnel to assist in the installation and commissioning work and provide necessary working conditions.

12.6 Party A shall prepare power supply, lifting equipment, auxiliary materials, oil and necessary tools and measuring tools during the installation and

commissioning process.

13. Acceptance of machine tools

The acceptance of machine tools is divided into two stages: pre-acceptance and final acceptance. The pre-acceptance is carried out at Party B's factory, and the final acceptance is carried out at Party A. 's use site.

13.1 After the assembly and debugging of the machine tool at Party B's assembly site is completed, Party B shall notify Party A, and Party A shall promptly send relevant personnel to Party B's assembly site for pre-acceptance and process one test piece. The pre-acceptance standard shall be accepted according to the technical

scheme or technical agreement signed by Party A and Party B.

If Party A cannot provide test pieces, cutting tools and auxiliary devices, Party B's standard test pieces, cutting tools and auxiliary devices shall be used for pre-acceptance trial processing.

After the pre-acceptance is completed, both parties sign the pre-acceptance minutes.

13.2 The final acceptance of the machine tool refers to the final acceptance of the machine tool after the installation and debugging of Party A. 's use site is completed. Processing one test piece, the test piece, cutting tools and auxiliary devices shall be provided by Party A, and the final acceptance standard shall be accepted according to the technical scheme or technical agreement signed by Party A and Party B; If the requirements are met, the final acceptance shall be deemed to be qualified, and the final acceptance form shall be signed by both parties. The warranty period of machine tool starts from the date of signing the final acceptance form by Party A and Party B. If there are still unfinished matters in the final acceptance process, they can be written into the final acceptance memorandum, which will be handled by Party A and Party B through consultation.

13.3 Party A has the right to use only the machine tools that have signed the final acceptance form, and Party B will provide follow-up services such as warranty and technical support.

14. After-sales service

14.1 Training

Party B shall train Party A's programming, operation and maintenance personnel for a period of 3 working days. During the training period, Party B shall be responsible for guiding Party A's relevant technical and operating personnel to conduct trial production of typical parts.

14.2 Party B strictly abides by Party B's product after-sales service commitment.

15. Uncovered matters shall be negotiated by both parties.

16.Machine photos for references only :