Kyal Machine Tools has introduced the Alzmetall GS 1000 five-axis high-precision vertical machining centre (VMC).
In addition to conventional, high-speed and hard-metal milling and drilling, the VMC can also perform turning operations up to 600 rev/min.
The GS 1000 has a gantry design with frame parts made of EN-GJS 500 (GGG 50) and EN-GJL 300 (GGL 30) steels.
Features include rapid axis feeds of up to 60m/min at spatial acceleration of 17m/s2.
The machine is equipped with a high-frequency motor spindle up to 24000 rev/min.
The A-axis opening-width diameter is 1070mm and distance of spindle to table is up to 801mm.
Alzmetall has introduced torque drive technology at the A-axis and C-axis (Model GS 1000/5-T).
Applications include medium- and high-volume production machining, modelling and prototyping, small batch production, mould, die and tool manufacture.
Special applications include: five-axis simultaneous machining of spatially geometric and non-geometric surfaces; machining jobs with high-frequency oscillating axis movements, such as turbine-blade machining; high-end finishing jobs in the tool and die industry; and turning operations at up to 600 rev/min.
Advantages include maximum use of the machining space with a non-disturbance range around the C-axis of 1070mm and a non-disturbance range of 980mm around the A-axis.
It also features a maximum distance between main spindle and the C-axis rotary table of 801mm.
The C-axis rotary table is placed 100mm below the A-axis.
A workpiece with a total height of 500mm can still be swivelled into a 90-deg upright table position.
Torque drive technology responds to highest controlled dynamics and guarantee high accelerations and speeds.
There are no mechanical driving elements and therefore no frictional wear and no inaccuracies while reversing.
Sealed four-fold coupling into the C-axis at centre of the C-axis rotary table for hydraulics and pneumatics access to interface hydraulic workpiece clamping systems at pressures up to 250 bar.
The design characteristics of frame include a basic frame body (monobloc) carrying machine table, axis-structures and tool magazine.
Both side walls as well as both cross sections are machined as a pair to guarantee highest geometrical precisions for mounting the guideways.
The coordinate unit is structured as box-in-box.
The monobloc core body moves in X-axis and carries the Z-axis unit.
The Z-axis column unit has four guideways with the main motor spindle inserted.
User benefits include: streamlined force-circuit between workpiece and tool; negative impact of force and temperature influence; lower tool costs; contour consistency at high path velocity; lifetime of machine tool spindle guarantees extremely high parallel path precision through double drives each at X- and Y-axis.
Design characteristics include: * Two A-axis torque drives are integrated in both sidewalls of the gantry machine frame * The C-axis torque drive is integrated into the swivelling A-axis module * Three-phased AC-synchronous motor with permanent magnet * Thermal division of both A-axis torque drives to gantry machine frame * Autonomous cooling system for the torque drives * Chip removal * Swarf tunnel located immediately below machining table Access to application: * Working space access from top, accessible by crane * Automatic access door feature open/close (Option) * Operator’s working position is directly at machining table Options include the following: * High-frequency motor spindle 18000/24000rev/min * Tool magazine up to 150 positions * HSK – A63 tool clamping system * Chip conveyor * High pressure coolant supply through spindle * 3D measurement system * Automatic workpiece handling * Automatic tool (wear) control * Dust extraction * Pallet changing system * Graphite machining.