Product category:
Vertical machining centres (VMC)
News Release from: Yuasa Warwick Machinery | Subject: Ohtori Kiko OSU-545
Edited by the Manufacturingtalk Editorial
Team on 22 August 2000
More compact, five-axis machining centre
A compact, five-axis machining centre suited to producing highly complex components to close tolerances has been introduced by Yuasa Warwick Machinery.
A compact, five-axis machining centre suited to producing highly complex components to close tolerances has been introduced by Yuasa Warwick Machinery The Ohtori Kiko OSU-545 is capable of linear accuracy better than +/-4 microns with repeatability of +/-2 microns
This article was originally published on Manufacturingtalk on 14 Jul 2000 at 8.00am (UK)
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Five-axis machining centre for complex components
A compact five-axis machining centre, the Ohtori Kiko OSU-545, suited to machining highly complex components has been introduced by Yuasa Warwick Machinery.
Three lathes produce couplings 50% faster
Three Takamaz XD-10 lathes, each equipped with integral gantry load / unload, are providing cost effective method of producing high pressure hose couplings and adaptors.
Repeatable EDM accuracy gives die maker the edge
Ona wire EDM cell cuts hollow or solid, simple or complex shapes and single or multi-cavity dies with repeateable accuracy.
Out-of-roundness on circular interpolation of 3 microns can be achieved, making the machine eminently suitable for top-precision, five-axis work such as turbine rotor machining from solid material.
The design is unusual in that it adopts a gantry format for machining over a work envelope of less than half a metre cube.
Installed weight is 8.5 tonnes - twice what one would expect of a 500mm3 machining centre.
All linear movements (500mm in X, 400mm in Y and 400mm in Z) are isolated above the machining area, greatly reducing the risk of swarf and coolant ingress into the slides; and aiding thermal stability.
Moreover, the layout provides a high degree of mechanical rigidity.
A massive cast A-axis trunnion supports the rotary C-axis / worktable assembly to provide angular positioning.
A-axis tilt of + 120 deg and - 90 deg can be programmed in 0.001 deg increments, as can the 360 deg C-axis.
All axes are driven by digital AC servo drives, utilising twin Y-axis ballscrews to eliminate skew.
Rapid traverse speeds are 20m/min in X and Y, and 16m/min in Z.
A-axis positioning speed is 15 rev/min equivalent, while the C-axis can position at 25 rpm.
The tee-slotted worktable measures 400mm by 500mm and can accommodate workpieces up to 230kg weight and 240mm maximum height.
Minimum linear programmable increment is one micron.
An external chiller optimises thermal stability of the 7.5kW machining spindle, whilst symmetrical mounting of the spindle evens out heat distribution.
Standard speeds are in the range 60 to 10,000 rev/min.
Spindle taper is BT40 with either 30, 40 or 60 tools available in the tool changer.
Maximum tool weight is 6kg.
Control is by the Fanuc System 15M.
Standard format is three interpolating axes plus two positional, but full five axis control is available as an option.
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