Product category:
5-axis (3+2 axes and continuous path) machining centres
News Release from: Mori Seiki UK | Subject: SH8000/5AX horizontal machining centre
Edited by the Manufacturingtalk Editorial
Team on 28 March 2001
Mori Seiki introduces heavy duty
five-axes M-C
Mori Seiki introduces heavy duty five-axes machining For the five axes machining of prismatic components, up to 1000mm swing diameter and 1000mm high, Mori Seiki has introduced the SH8000/5AX
Mori Seiki introduces heavy duty five-axes machining For the five axes machining of prismatic components, up to 1000mm swing diameter and 1000mm high, Mori Seiki has introduced the SH8000/5AX horizontal machining centre equipped with a rotary and tilting 630mm square pallet table The SH8000/5AX HMC provides 30/25kW of spindle power, up to 10,000 rev/min spindle speed and axes feed rates up to 42m/min
This article was originally published on Manufacturingtalk on 5 Jun 2001 at 8.00am (UK)
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Faster, securer, five axes machining Mori Seiki's engineers have paid particular attention to the security of the five-axis machining process.
For example, the tilting A-axis is built with a (cyclone) deceleration system to eliminate backlash.
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Pollard Mori Seiki's extremely compact CL Series of CNC chucking lathes offer superior rigidity to support continuous high speed machining of production components.
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A substantial three-way guideway system, which supports the longitudinal travel of a moving column, provides theSVL5020 long-bed VMC with plenty rigidity for the high speed milling.
High speed machining centre reduces downtime
Capable of machining workpieces up to 2000kg the Pollard Mori Seiki SH8000 horizontal machining centre offers faster traverses and tool-changing times and shorter pallet changeover cycles.
Also very important is the minimisation of any feed drive power loss to the A-axis.
Feed motor power is 7.3kW and 90% of this is transmitted to the tilting axis mechanism.
Essentially, the tilting/rotary table is of trunnion design.
Two massive trunnions are mounted on a substantial carriage traversing along the Z-axis.
Feedrates for the tilting A-axis are up to 2000mm/min and for the rotating table's B-axis, 4000mm/min.
Feed rates for the X, Y and Z-axis are up to 42m/min respectively.
The combination of this fast rotary/tilting table and the high specification SH8000/5AX horizontal machining centre (HMC) design provides a very powerful and speedy workhorse for the high speed machining of complex aerospace components, such as turbine wheels and helicopter transmissions, the complex geometries of radar, military and guidance systems components, complex sealing surfaces in the sealing, pumps and valve industries, short batch runs of prototype and motor sport cylinder heads, and for the high speed, geometrically complex machining of pre-hardened die steels for the press tools and mould and die industries.
The basic SH8000/5AX HMC design is a moving column/traversing table arrangement providing 30/25kW of spindle power and up to 10,000-rev/min spindle speed.
Customers can also specify spindle speed ranges up to 6000 rev/min for high torque milling and 15,000 rev/min for light alloy machining.
Traverse rate in all axes is up to 42m/min and acceleration rate is 3.9m/sec2.
Tool changing time, tool-to-tool, is 2.5sec.
In its MAPPS CNC for simultaneous 3-axis and 3+2 axis machining, Mori Seiki has introduced new generations of control software, with look-ahead control functions, to improve the accuracy of machined workpiece surface shape.
For example in feed-forward mode, the look-ahead function minimises servo system delays to reduce shape errors.
The MAPPS also applies automatic corner deceleration to maintain shape accuracy.
When machining arcs, feedrate acceleration is kept below a certain rate to maintain arc accuracy.
The unit also automatically reviews commands to minimise acceleration/deceleration, again to minimise shape errors.
High-grade finish-machined surfaces can be produced with the option of NURBS interpolation.
CNC options include polar co-ordinate interpolation, cylindrical interpolation, the addition of optional block skip functions, manual feed interruption and co-ordinate system rotation.
Programming MAPPS CNC is straightforward.
The operator enters dimensions and data in response to on-screen prompting in the conversational automatic programming routines.
MAPPS will then automatically select tools, cutting conditions and the most efficient machining sequence.
Two programs can be opened simultaneously and data copied and pasted between them.
CNC data can be freely up or down-loaded from memory cards, or networked through optional RS-232 porting.
MAPPS CNC features also include 3D graphic simulation, program editing, tool registration, data input/output and maintenance scheduling.
In the SH8000/5AX machining centre, pallet size is 630mm X 630mm.
Maximum swing diameter is 1000mm and maximum workpiece height is 1000mm.
Minimum table positional indexing is in increments of 0.001 deg and the table indexing time is 2.5sec through 90 deg and 3.8sec through 180 deg.
The rotary/tilting table pallet accepts loads up to 1000kg.
Axes travels on the HMC are 1080mm by 1200mm by 1000mm for X, Y and Z.
Automatic tool change is effected by a double-arm toolchanger serving rack-type tool magazines with capacities of 60 (standard) tools and 150, 240 or 330 tools (optional).
Magazine location is at the side of the machining centre.
Coolant systems include oil-mist and through-spindle types.
The standard main spindle will accelerate in 3.9sec from 0 to 10,000 rev/min and decelerate in 3.8sec.
Optional spindles are available for 30/25kW power at 15,000 rev/min or heavy cutting duty at 15/22kW or 37/30kW at up to 6000 rev/min.
All these features of the SH8000/5AX combine to reduce downtime during machining cycles on heavy components with complex surface geometries and improve overall manufacturing efficiency. Request a free brochure from Mori Seiki UK ...
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