Tube Sheet Drilling Machine

1. Machine brief

Drilling range: Φ3~Φ35mm
Maximum drilling depth: 2500 mm Maximum drilling L/D ratio 100:1

Worktable: moves in X direction on the bed guideway; fixed T-slot table is standard.
X-axis: Controls the lateral movement of the table; double rectangular sliding guideway, the guideway surface is precision ground and quenched; servomotor drives the ball screw through the servo reducer to realise the X-direction movement, CNC control.
Y-axis: control the movement of the tool system in the vertical direction; double rectangular
sliding guideway, the guideway surface is processed through precision grinding and quenching; servomotor drives the ball screw through servo reducer to achieve the Y-direction movement,
numerical control, servomotor with a telegraphic brake; adopts the balance block counterweight. Z-axis: control tool feeding movement; rolling linear guide; servo motor drives ball screw
through coupling to achieve Z-direction movement, CNC control; tool feeding can be stepless speed regulation.
W-axis: control the movement of column, adjust the distance between column and table; double rectangular sliding guideway, guideway surface is precision ground and quenched; servo motor drives ball screw through servo reducer to achieve W-direction movement, CNC control.
Drill box: drive the tool rotation; the spindle is driven by servo main motor, synchronous belt, synchronous belt wheel, stepless speed regulation can be achieved, the power of the main motor is 7.5kw, the highest spindle speed of 5000r/min. rotary joints are adopted at the back end of the spindle of the drill box.
Guide frame: guides the tool, discharges the chips and supports the role of the toolpost; it can move axially under the control of the pneumatic system to tighten and loosen the workpiece.
Cooling system: supplying oil for the tool and discharging chips; it is mainly composed of dirty oil tank, net oil tank, circulating pump, paper belt filter, high-pressure pump group, liquid level controller, chain plate chip conveyor and so on. On the operation station of CNC system, the
pressure adjustment knob of cooling system and the flow rate adjustment panel are assembled. The chip conveyor is front-mounted for easy observation of chip removal.
Drill bar support: 4 sets, used to support the tool bar.

Protection: standard worktable protection, optional full protection for main machine.

The basic parts such as machine bed, table, column, lifting slide and box are casted with resin sand and treated with two times aging.

CNC system: SIEMENS-828D CNC system.

3.Machine configuration

4.Option
Manual walking paper bag filter, other CNC systems, auxiliary tools, cutting tools, cutting oil, automatic oil dumping machine, NSK spindle bearings.
5. Processing precision
Drilling deflection: 0.05mm/100mm
Roughness: Ra1.6～6.3um
Hole diameter accuracy: IT8～IT10
6. Machine standerd
Chain plate chip conveyor, automatic paper bag filter with paper walking, oil cooler, tool oil supply pump set, CNC system and its servo feed motor, servo main motor for drilling box, T-slot table, Z-axis linear guide, XYW-axis sliding guide, pneumatic system, 4 sets of drilling rod holders, and a set of instruction manual.
7. Acceptance of machine tools
7.1 The user comes to the machine tool manufacturer for pre-acceptance. Machining workpiece
1, test pieces and tools provided by the user, according to the contents of item 4 acceptance.
7.2 Final acceptance in the user's factory. Workpiece cutting, machining 1 piece of workpiece, test pieces and tools provided by the user, acceptance according to the contents of item 4. After passing the test, both parties will sign the final acceptance minutes, and the signatures will come into effect.
8. After-sales service
8.1 Installation, commissioning
machine arrives at the user's factory, the machine tool manufacturer to send staff to guide the installation of equipment, responsible for commissioning.
8.2 Training

machine tool manufacturers to the user programming, operation and maintenance personnel for a period of three working days of training, training period machine tool manufacturers are
responsible for guiding the user's relevant technical and operational personnel for the trial production of typical parts.
8.3 machine tool manufacturers strictly abide by the company's product after-sales service commitments.
9. Any unresolved issues shall be negotiated between the two parties.

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