Horizontal machining centre is geared for high productivity

Citation

(2005), "Horizontal machining centre is geared for high productivity", Aircraft Engineering and Aerospace Technology, Vol. 77 No. 4. https://doi.org/10.1108/aeat.2005.12777dab.002

Horizontal machining centre is geared for high productivity

Horizontal machining centre is geared for high productivity

Keywords: Machining centres

A claimed acceleration of 1G, a rapid traverse rate of 60 m/min over a working envelope of 1,000 mm in X, 800 mm in Y and 850 mm in Z with a positioning accuracy of +0.003 mm and repeatability of +0.002 mm distinguishes the latest Toyoda Mitsui Seiki FH 630S horizontal machining centre as a high precision production unit.

Now available from 600 Centre of Shepshed near Loughborough, the 18 tonne machine is constructed around a highly rigid three point cast iron bed utilising Toyoda’s low-friction roller bearing-based linear guideways that provide twice the rigidity and three times the vibration damping of traditional ball bearings.

Ballscrew compensation with automatic stabilisation through sensors in each axis ensure positioning accuracy and the 15,000 revs/min 18.5 kW spindle incorporating four front bearings ensures stability and that vibration is reportedly minimised giving a high surface finish capability and extended working life. Acceleration to maximum speed is completed in just 2.3 s and an optional 8,000 revs/min spindle giving 165 Nm of torque is available.

The FH 630S is equipped with twin 630 mm × 630 mm pallets capable of accepting 800 kg loading with a 12 s exchange time. Pallet indexing through 90º takes 2 s, 180º just 2.4 s and indexing can be initiated at 1º increments. Options include a 360 position table with a fully NC controlled B-axis for contouring.

A standard tool magazine has 40 pockets with options to take up to 60 or 120 tools in a chain magazine. However, a modular matrix unit can also be specified holding up to 326 tools delivered to the working area by high speed two-axis servomotor. By combining magazine indexing with spindle orientation simultaneous high speed tool change can be performed within 1.3 s tool to tool and 2.7 s chip to chip.

Control is through Fanuc 30iM and through Toyoda’s OP Supporter software, tool management, pallet management and maintenance functions are enhanced.

Details available from: 600 Centre. Tel: +44 (0) 1509600600, E-mail: cnctools@600centre.co.uk; web site: www.600centre.co.uk