CK5250

Description

CK5250/63 CNC double-column vertical lathe is a combination of modern advanced mechanical technology, electrical and hydraulic based on rich design experience, special attention and professional skills and large vertical lathe manufacturing. It is designed and manufactured with the latest technology, professional knowledge, optimized design, high-quality materials, accessories and the best manufacturing and assembly process. It features, High-rigidity thermal symmetrical gantry structure, excellent stability even under harsh cutting conditions, Large rib base and worktable equipped with hydrostatic axial bearings, large load capacity, Modular design, easy to customize, to meet customers’ diverse processing needs, namely: turning, milling, drilling, tapping and grinding. It is designed and manufactured to meet modern processing requirements, using high-speed cutting tools and carbide tools for workpieces of cast iron, cast steel, alloy steel, prefabricated steel and other materials. 3. Main features
★ Suitable for 380v/50HZ/3PH, or local power supply,
★ Reliable and powerful Siemens SINUMERIK 828D s.l. CNC control, or FANUC OI
★ The main body adopts high-quality cast iron structure, which is extremely stable and reliable, and the machine life is longer,
★ Centralized operation button station and suspended operation panel,
★ The workbench is equipped with a manual four-jaw chuck with claws,
★ CNC-controlled left tool head and button and switch-controlled right tool head,
★ Vertical head square tool holder, especially suitable for deep hole processing,
★ The workbench speed gearbox adopts forged shaft,
★ 2 spindle speed gears, the workbench speed can be changed in each gear,
★ The workbench speed gearbox adopts hardened ground gears, which runs smoothly,
★ The tool head adopts high-precision bearings to support the precision ball screw (X/Z axis),
★ Automatic forced lubrication system for tool head and cross guide rail,
★ High-power DC 110kW main motor with DC digital drive unit (Eurotherm/PARKER brand),
★ Independent cabinet air conditioning, especially suitable for tropical climates,
★ Adequate work light illumination,
★ Independent hydraulic power unit, easier adjustment and maintenance,
★ Hydrostatic thrust bearing worktable equipped with constant current power supply (0.2-0.4Mpa),
★ 12 pockets with large axial hydrostatic bearing area to ensure large worktable load capacity,
★ The cross rail is automatically clamped on the column for heavy-duty cutting,
★ C45 steel plunger is induction hardened and ground to improve dynamic performance and extend service life,
★ The sliding guide rail is lined with wear-resistant industrial zinc-aluminum alloy (ZnAl10-5), which is wear-resistant
The zinc-aluminum alloy (ZnAl10-5) lining is engraved on the worktable rail to extend the life of the machine,
★ The PLC unit (DELTA/OMRON brand) is integrated in the electrical system for reliable operation,
★ Both cutter heads are fed with servo feed motors and ball screws,
★ There are retractable steel covers on the horizontal rails to avoid chips, dust, oil, etc.
★ There are retractable and movable operating platforms on both sides of the horizontal rails for easy operation

Max. turning diameter (mm) 5000/6300
Table diameter(mm) 4500/5800
Max. working height of work-piece(mm) 3500/4000
Max. cutting resistance of right tool post（CNC）(KN) 100
Max. cutting resistance of left tool post （PLC）(KN) 80
Max. torque of table(KN·m) 500
Speed range of table(r/min) 0.155～162r/min, 2 gears, stepless
Rapid traveling speed of tool post(mm/min) 2000
Table guide Static Hydrostatic
Moving degrees limit of tool post(°) -15~+30
Controller FANUC OL MD
Position accuracy Test and evaluate accuracy
according to GB/T17421.2-2000
Positional accuracy(mm) X Z 0.03/1000
Repeatable positional accuracy(mm) X Z 0.015/1000
Reverse positional accuracy(mm) X Z 0.010/1000
Max work pieces load (T) 200
Temperature range(°) 0~40°
Ambient humidity ≤85%
Power supply and voltage 380V±10% or specified
Travel of tool post Horizontal(mm) -50-5150mm
Travel of tool post (Vertical)(mm) 2500
Number of feeds Stepless
Feed range of table(mm/min) 0.1~500
Travel of crossbeam(mm) 3000
Moving speed of the crossbeam(mm/min) 300
Machine weight 220/240
Power of main motor(KW) 55/75

Castings:

The machine body is made of high-rigidity resin sand casting with thermal/vibration stress relief
(VSR) aging treatment. Steel parts are tempered.
○ Resin sand casting,
○ High grade, high strength, low stress
○ Stress-relieved casting absorbs stress during cutting and suppresses vibration

Machine structure:

Thermosymmetric gantry frame structure

The machine adopts a stable thermosymmetric gantry frame structure, which is mainly composed of a base,

worktable, left and right columns, crossbeams, top beams, tool heads, hydraulic systems and electrical systems.

The columns and crossbeams are box-shaped castings with many reinforcing ribs. The two columns are

connected by the top beam and bolted to the base at the bottom, thus forming an excellent

rigid and stable structure, which can perform stable heavy cutting even under harsh cutting conditions.

Base with spindle and bearings

The base is made of high-strength ribbed grey cast iron and rough-machined to eliminate stress.

Heavy-loaded short-shaft type spindle is placed in the center. High-precision (P5 grade) preloaded double-row

Equipped with cylindrical roller thrust bearings to radially support the spindle. The inner tapered ring

Bearing can effectively eliminate radial clearance and achieve high-precision positioning of the spindle

High-speed and stable rotation. The base axial adopts large-size hydrostatic bearings to improve

Loading capacity. The hydrostatic guide rail adopts zinc-aluminum alloy lining and fit. Constant flow

Hydraulic oil flows in through the regulating distribution mechanism.

Features of hydrostatic bearings:

A). Low friction, smooth rotation, long worktable life,

B). Heavy load capacity on the table,

C). The oil film between the machine base and the worktable absorbs cutting vibrations and loads,

D). The safety system adjusts the hydrostatic pressure for optimal safety.

Workbench:

The workbench is made of high-grade cast iron with many reinforcing ribs for excellent rigidity. Four heavy-duty

jaws are mounted on the workbench. A ring gear is installed under the workbench. The surface under the table is engraved with wear-resistant zinc-aluminum alloy lining.

Manufacturing standards

Accuracy: in line with Chinese standard JB4116-85 (basically equivalent to ISO 3655-1986)

Working environment

1. Power supply: 3800V±10%, 50Hz±1Hz, 3 phases
2. Ambient temperature: 5℃ – 45℃
3. Relative humidity: ≤85% (at 20℃)
4. Machine noise: ≤85dB@idling
5. Altitude: ≤1500mm
6. Environment: no harmful gases, liquids, dust, vibration, magnetic fields, radiation sources, etc.