SCM Ergon CNC Machining Centre
SCM Ergon CNC Machining Centre on scottandsargeant

ERGON CNC MACHINING CENTRE
Advanced technology, maximum safety, top productivity.
After detailed analysis of market requirements and extensive research and development, SCM designed the "ERGON" series of next-generation, fixed-gantry CNC routing centres.

In the design of the new ERGON particular attention has been paid to ensuring the maximum rigidity of the fixed gantry structure. A feature considered by users in this category to be of fundamental importance to ensure the total absence of vibration and a smooth, accurate machine operation. Smoothness, precision and rigidity are combined with SCM's expertise and experience in routing machinery to guarantee an unrivalled, high quality finish even under heavy duty operating conditions.
Users can select a routing unit from the wide range of configurations available. There is a routing unit configuration to meet any production specification. Total safety is guaranteed. The new Rear Unit design keeps the operator working area separate from the routing area which is on the other side of the gantry.
High productivity, top machining flexibility, maximum safety and good to the environment. Just some of the features that make Ergon an innovative solution in woodworking.
CONCEPT
This is a CNC machining centre with continuous and simultaneous movement along 3 or more axes, characterized through total accessibility to the worktables in complete safety, thanks to REAR UNITS, a new concept, which creates two separate work areas and permits to keep apart the machining side (working units) from the operator one (workpieces loading/unloading). The worktables are mobile along the «Y» axis and are multi-purpose to solve all component clamping requirements and enable pendulum machining. In fact while workpieces are being machined on one table, the other table is being loaded/unloaded and set-up by operator who has easy access to the same. Workpieces of the same dimensions as the X-Y axes traverse can also be machined thanks to the CNC controlled synchronization of the two worktables. The working units slide directly on the beam of the machine base, without any support carriage and are mobile along X and Z axes. The control consul and electrics are housed in a separate cabinet equipped with a mobile button set with main operating functions enabling operator to control all machine operations from any position. The machine is fitted with a safety guard around the whole rear perimeter to ensure complete safety for the operator.
MACHINE STRUCTURE
Structural components of the machine (machine base, uprights and beam) are integrated in a sole element of electrowelded stabilized steel, ribbed for stiffness and designed using the latest computerised systems. This monobloc structure has the rigidity and strength necessary for complex, heavy duty routing and machining jobs to guarantee a high precision quality finish.
MACHINING HEAD
This is composed of a routing unit with an independent Z-axis and a 12-positions tool-room. A pneumatic cylinder nullifies the weight of the whole unit allowing agile and accurate movement.
SPINDLE HEAD
The spindle heads, designed and manufactured by SCM, are of an extremely stiff structure to ensure accuracy and offer an powerful, silent, high quality performance.
The main features are:
· Heavy steel structure with ample surface area to ensure proper heat dispersion
· a pair of preloaded ceramic angular bearings
· internal pressurization to keep ball bearings dust free
· structure is kept cool by liquid with forced circulation system through radiator
· exhaust air flow co-axial with electro-spindle
· grease lubrication for life
· "Rapid" tool locking
· high performance 10 Hp motor
The streamlined overall assembly facilitates airflow integrated with exhaust, guaranteeing maximum efficiency at 360 degrees to ensure constant cooling of entire surface. A thermic probe placed inside spindle guarantees ideal temperature and blocks running when system reaches high temperatures.
Automatic selection of stepless spindle speed is CNC controlled within the range of 900 to 18.000 r.p.m. as the machine is standardly fitted with static inverter.
QUICK RELEASE TOOLHOLDER
This consists of a mechanical device fitted inside the spindle for the locking of the taper; the locking/unlocking is CNC controlled by calling up the tool changing operation. During this operation a special sensor guarantees the control and prevents start-up of the spindle until locking is complete. A jet of air blows inside the spindle to ensure the contact surfaces are perfectly clean for precise location.
The quick locking device is the HSK type characterised by:
· double referencing by the TAPER and FACES ensure precise location and positioning of the working tool
· tool holder of optimum size for rapid tool changing
This device enables the use of automatic tool changing (machining of different profiles on a single component), angle drive drilling and routing heads (for work where a different tool axis is required), grooving etc. Dimensions of the tools can be preset using the PRESET 14, contact measuring system (available as an option), in order to avoid successive adjustment of component programme during setting up or substitution of tools.
EXHAUST SYSTEM
Space between spindle and cylinder which houses it is used for an integral dust extraction system which guarantees maximum efficiency at 360 degrees and differs from the traditional system totally concentrated at exhaust outlet. Steel shaving hood has a flexible brush strap at the base to trap wood shavings and protect operator at the same time.
WORKTABLE
The worktable is of the multi-purpose type to satisfy all fixing requirements. The structure of worktable is in aerospace aluminium with a honeycomb structure,, a new material noted for its stiffness and light weight. The multi-purpose aluminium table with vacuum channelling is fixed to this structure; the grooved top surface accommodates rubber sealing gasket to mark off clamping areas on table. Special modular inserts can be fixed directly to grooves to reproduce geometrical shape of workpiece; in this way traditional methods of workpiece clamping are produced in an extremely rapid way with all deriving benefits (work piece is clamped in exact position where it will be machined). Threaded holes on steel bushings are laid out on worktables for vacuum holdown and/or anchoring of equipment and mechanical clamping systems. Traditional circular vacuum modules can be inserted in the threaded holes which together with reference stops enable fixing of workpieces without need of building template fixtures. The retractable stops can also be fixed to worktable perimeter to provide program origin fixed points. Some grooves of table are of an overturned "T" shape to enable quick mechanical fixing uniformly spread over table.
VACUUM HOLD-DOWN
Vacuum hold-down consists of:
· high delivery output vacuum pump
· double vacuum circuit
· solenoid valve for opening and closing of circuits
· line filters for pump protection
· two start-up push buttons for vacuum, positioned within easy reach of operator, which arrest machine. Machine does not start up again until operator has carried out the operation of reset.
· double-set digital vacuometers (for porous and compact materials: MDF and chipboard/solid wood, plastics, aluminium) to indicate real vacuum pressure reached in blocking workpieces.
MOTION OF AXES
Motion of axes is conveyed by ground screws and preloaded ball screw assembly , to eliminate play during reverse feed. Screws are driven by AC Brushless motors ensuring optimum machining accuracy. X ,Y and Z axes run on prism guides and linear sliding blocks with preloaded recirculating balls to guarantee an optimum stiffness of worktable. Ball bearings, ball screw asembly and bushings are lubricated through a CNC controlled centralized system according to approved cycles to maintain long life performance and efficiency. Speed of axes is CNC controlled, enabling user to choose speed according to work requirements.
CONTROL UNIT
The NUM 1000 series CNC control unit with PC integrated has a high calculating capacity and a quick and accurate execution ensuring high quality finish. This control is extremely easy to learn and use without operator needing any particular preparation.
Main specifications:
· microprocessor CNC control
· integrated PLC programmable from keyboard to facilitate service operations
· clear messages for operator
· programs transmitted through RS232 interface
· drip feed
· editing of programs from keyboard
· memorizing of up to 9999 programs or sub-programs (up to completion of memory capacity)
· 800 Kb program memory
· circular, linear and helical interpolation
· 0.001 mm. resolution
· automatic control of acceleration/deceleration
· automatic take-up of play during reverse machining
· programmed speed modulated from 0 to 120% by potentiometer
· speed programmed according to necessity of each section of tool path
· spindle programming in r.p.m.
· programmed spindle rotation speed modulated from 50 to 100% by potentiometer
· automatic compensation of tool diameter and length
· programmed angular offset
· parametric programming of trigometrical, arithmetic operations, and unconditional and conditional jumps
TELESOLVE
Remote tele-diagnosis which is connected to numerical control through a Modem card and a specific program installed in the P.C. which enables the technician of the SCM service department to intervene on the machine in real time for:
· diagnosis of PLC software, machine parameters etc.
· up-dating of numerical control software in real time
STANDARD TECHNICAL SPECIFICATIONS
Basic machine without head units
Version with double worktable
Dimensions of each worktable 1490x1520 mm
Traverse of «X-Y-Z» axes 3700x1740x300 mm
Work height from spindle nose to table top 300 mm
WORKTABLE
· multi-purpose aluminium table with integrated vacuum circuit, right-angled milled slots for the insertion of rubber sealing gasket, modulset and retractable reference stops
· threaded holes on steel bushings for vacuum fixing, anchoring of equipment and/or suction cups
· modulset standardly supplied:
nr. 24 L=93 mm H=20 mm
nr. 8 L=46 mm H=20 mm
nr. 8 attachments
2240 mm. linear development
· pneumatic devices operating unit with quick fitting connections (2+2 for each half-table) for double compressed air circuit for pendulum machining
Technical Specification:
VACUUM SYSTEM
· vacuum pump 90 mc/h
· motor power at 50 Hz 3 Hp
· max. vacuum pressure at pump outlet 0,9 bar
· approx. noise level at 50 Hz 72 dB(A)
· double circuit for pendulum loading
AXIS TRAVERSE
· axes driven by AC digital servodrives and "brushless" type motors
· ground screws and preloaded ball screw assembly
· prismatic guideways and sliding blocks with preloaded recirculating balls
· CNC controlled automatic lubrication system
· rapid traverse of «X-Y» axes 80 m/min
· rapid traverse of «Z» axis 30 m/min
· CNC controlled synchronization of worktables for machining workpieces of the same dimensions as «X-Y» traverse of machine
CNC CONTROL UNIT
· NUM 1000 series with PC integrated
· operative system Windows 98
· TFT LCD coloured video 10,5"
· qwerty keyboard
· micro processor PENTIUM-266 Mhz
· hard disk 1,5 Gb
· RAM memory 32 Mb
· floppy disk 3,5» 1,44 Mb
CONTROL CONSUL
· control panel integrated in electric cabinet
· mobile button set with main operating functions
02.06.90 ERGON CNC MACHINING CENTRE
21.00.12 X-Y AXES STROKES - 3700X2800MM
Dimensions of each worktable 1490x2600mm
12.00.61 HIGH POWER ROUTING UNIT 7,5 kW
· POWER 2000 Electro-spindle
· HSK 63 F quick release toolholder
· spindle speed 900 to 18000 rpm
· motor power 7,5 kW (10 Hp) at 9000 rpm
· right and left rotation
· static inverter for stepless speed and rapid shutdown of rotation
· liquid cooling with forced circulation system through radiator
· 12 toolholders for fixing cylindrical shank tools
(nr.1 ER 40 and nr.11 ER 32)
· expansible collets standardly supplied
nr. 1 diameter 24/25 mm (ER 40)
nr. 2 diameter 19/20 mm (ER 32)
nr. 1 diameter 15/16 mm (ER 32)
nr. 7 diameter 12/13 mm (ER 32)
nr. 1 diameter 5/6 mm (ER 32)
· vertical adjustment of shaving hood with CNC automatic positioning (connection diam 150 mm)
AUT. TOOL CHANGER
· 12 stations
· centre distance between stations 88 mm
· max. weight of tool 4,5 kg
· max. weight of tools contained in tool magazine 30 kg
· management potential of 2 angle drive heads
· positioned on routing unit
45.11.44 F 18 - Drilling unit with 18 spindles
This rigid and compact structure has been especially designed to enable drilling of even solid wood. The unit is equipped with an independent vertical ON-OFF movement which considerably reduces drilling time.
Technical specifications:
· 12 independent vertical spindles (7 right and 5 left)
· Attachment for vertical bits: M 10 / 11 mm diam.
· 6 horizontal spindles (2+2 along "Y" axis and 1+1 along "X" axis)
(3 right and 3 left)
· Attachment for horizontal bits: M 8 / 9 mm diam.
· Centre distance between spindles: 32 mm
· 4000 rpm
· 1,5 kW motor
· vertical ON/OFF pneumatic stroke of each spindle: 60 mm
29.13.50 Worktables divided into two vacuum areas
35.08.19 Two 250mc/h vacuum pumps
Each motor 5.5kw 50hertz
30.02.13 Telecontrol
To monitor the work area by CNC display
36.06.00 Position display
For routing unit
19.00.00 Centralised exhaust system (up to 2 units)
Up to 2 units with independent Z axis