BASIC MACHINE PowerSpeed 6, year of construction: 2013

TRAVELLING PATHS OF THE BASIC MACHINE

Machine stand horizontal-longitudinal           X = 8,000 mm

Vertical headstock slide                                 Y = 3,100 mm

Headstock horizontal-transverse                   Z = 1,500 mm

MACHINE BED X-AXIS

Machine bed in flat bed design as the basis for fast and safe movement of the machine column in the X-axis. A guideway width of 1,200 mm in conjunction with hardened compact roller guideways ensures maximum precision. The X-axis is driven by 2 electrically tensioned electric motors, power transmission via a rack bolted to the centre of the machine bed.

MACHINE STAND Y-AXIS

Column in welded steel construction with compact roller guide. Two liquid-cooled feed motors in the Y-axis ensure rapid acceleration and high rapid traverse speeds at a constant operating temperature. Two measuring systems on the column guarantee maximum accuracy when extending the headstock (Dynamic Drive). The column is protected from chips and cooling water by telescopic steel covers. Guideway width in Y-direction 900 mm.

HEADSTOCK SLIDE AND HEADSTOCK

Cast construction made of GGG 60, guided on the machine column with 2 hardened compact roller guides. Headstock also made of GGG60 cast iron with two opposing compact roller guides. The long guideways both to the machine column and to the headstock guarantee maximum power transmission with consistent quality. To prevent the machine column from tilting, the guideways of the Y and Z axes are arranged as close as possible.

DYNAMIC DRIVE

Drive via 2 vertical ball screws with separate drives, measuring systems and CNC axes. This ensures highly dynamic acceleration of the vertical unit with long-term accuracy.

DRIVE SYSTEM

Digital individual feed drives for contour-accurate work via AC motors with constant torque, feed and rapid traverse range infinitely variable from: X + Y + Z-axis 2-30,000 mm/min, acceleration values in all axes 3.5 m/s2

MEASURING SYSTEM

Direct non-contact measurement via linear measuring systems for high-precision production.

UNIVERSAL MILLING HEAD IN ORTHOGONAL DESIGN

– Cast construction made of GGG 60

– Milling head holder, automatically swivelling 360 x 1 degree

– Milling head, automatically swivelling 180 x 1 degree

– 64,800 full degree positions can thus not only be approached via the CNC

  not only be approached via the CNC control,

  but can also be programmed and processed

– Indexing via face gearing

– SK 50 BIG-PLUS tool holder

– The milling spindle is equipped with a hydromechanical

  tool quick clamping system

– Tool pull-in force: 20 kN

– Internal coolant supply form A-D

– External coolant supply via shower ring

– Main drive power through a frequency-controlled,

  liquid-cooled AC motor with 37 kW at 100 % ED

  or 55 kW at 40 % duty cycle

– Speed range 22- 6,000 1/min

ELECTRICAL EQUIPMENT

In accordance with EN 60204, VBG 4 for 400/230 V(± 10 % ) 3 phases, 50 HZ, 250 A slow-blow fuse protection. Control voltage 24 V, total connected load approx. 120 kVA, 190 A. The separate switch cabinet contains the control units for the main spindle and feed motors as well as the freely programmable adjustment control and the switchgear for the additional units. Protection class of the control cabinet, the feed motors and the main motor IP 54. Machine and control cabinet are connected to each other via plug connections. Distance corresponding to 5 m cable length. Installed in the cable duct provided by the customer in accordance with the installation plan.

CONTROL CABINET COOLING

Mounted on the control cabinet doors. Two-chamber system. There is no exchange of internal air with external air. The inside air of the enclosure is cooled automatically via an evaporator. At the same time, the inside air of the enclosure is also dehumidified.

LUBRICATION

Guideways:                Impulse centralised lubrication

Main spindle:              Permanent grease lubrication

Milling head:               Oil mist lubrication

ENERGY CONNECTION

Compressed air 4-6 bar (filter pressure regulator with pressure gauge and condensate separator on the machine, connection G ¼)

COATING

Basic machine colour RAL 7004 signal grey. Headstock unit and tool changer with magazine RAL 7016 anthracite grey. Chip conveyor, coolant unit and sliding doors RAL 7016 anthracite grey. Colour-neutral standard components RAL 9011 graphite-black. DD textured paint, silk gloss, oil and soda resistant.

HEIDENHAIN ITNC530 HSCI CONTROL SYSTEM

Centralised operation via integrated CNC control in the machine control panel, swivel-mounted on support.

RADIO HANDWHEEL HR 550 FS

TRAVELLING WORK PLATFORM

Travelling work platform in X-direction with built-in CNC control.

The working platform is arranged on the side of the machine stand. Work-side door with viewing window is electrically secured.

AUTOMATIC TOOL CHANGER

– Number of tools in the chain magazine 48

– Maximum tool diameter at mm 125

  filled magazine

– Maximum tool diameter at mm 250

  free neighbouring positions

– Maximum tool length mm 500

– Maximum tool weight kg 25

– Maximum tool load torque Nm 40

– Tool holder SK 50 DIN69871

– Spindle position for tool change horizontal

– Fixed location coding

Protection against contamination of the spindle taper is provided by blowing out air during each tool change.

REINFORCED COOLANT DEVICE

Coolant device for the coolant supply, optionally switchable from external coolant supply (shower ring) to internal coolant supply (IK), DIN69871-AD, incl. compact filter system and double switching filter for cleaning the coolant. Frequency-controlled high-pressure pump with infinitely adjustable pressure

pressure control via potentiometer in the control panel.

Pump capacity: 32 l/min at max. 20 bar

Coolant tank: 950 litres

COOLING WATER-AIR

Switching the internal or external coolant supply from cooling emulsion to air.

2-CHANNEL COLLISION MONITORING SYSTEM

2 monitoring channels: 1. collision (channel 1)

2. tool monitoring (channel 2)

A piezoelectronic strain transducer serves as the measuring sensor. This measures the forces during machining. The sensor signal is analysed by the control unit.

Specification of the collision process limit (channel 1):

The process limit for the 1st channel (collision) can be adapted to the machining process by the machine operator via the control unit on the monitoring system. If lower forces occur during machining, the process limit can be reduced, which means that the machine switches off earlier in the event of a collision and damage is minimised as a result. If the force signal exceeds the process limit, the machine is switched off and all axes are braked with maximum torque.

Specification of the tool monitoring process limit (channel 2):

The process limit for the 2nd channel (tool monitoring), is read from the tool data of the active tool and automatically transferred to the monitoring system. If the force signal exceeds the process limit for the tool, an NC stop is output.

SEALING AIR FOR MEASURING SYSTEMS

The glass scales on all linear axes of the machine are pressurised with sealing air to reduce the residual risk of contamination to a minimum.

CHIP CONVEYOR OF THE BASIC MACHINE

Chip conveyor in hinged belt design

Feed width                              mm 350

Discharge height                    mm 1,140

Travelling distance X             mm 9,000

Machine is offered without plate field & three-sided guard.

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• Maschinen Layout