One metre X-axis for 30 taper machining centre
Brother has launched a new model in its Speedio range of nimble, low-inertia machining centres that distinguishes itself by having an X-axis travel of 1,000 mm. The 30-taper machine made its world debut at JIMTOF 2014, the 27th Japan International Machine Tool Fair held in Tokyo from 30th October to 4th November.
Designated S1000X1, it has been developed to appeal to automotive component manufacturers and others that need to machine larger components. Alternatively, a greater number of smaller components can be fixtured for processing in one cycle, reducing the overall number of tool changes per batch and increasing production efficiency.
Smaller models in the Speedio range have 300, 500 or 700 mm movements in X and 400 mm in Y, but in the latest machine, the Y-axis is increased to 500 mm. All have a 300 mm Z-axis travel.
As their name implies, these machines are quick. Rapid traverse in X and Y is 50 m/min and even faster in Z at 56 m/min. Cutting feed in all axes is 3 m/min. Tool-to-tool change is under one second, giving a chip-to-chip time of 1.4 seconds. Tool change is performed at the same time as X and Y axis movements and rotation of the indexer (if fitted) to reduce idle time. Rigid tapping is performed at 6,000 rpm.
The specification includes a maximum table load of 400 kg, a 10,000 rpm spindle with high-torque and 16,000 rpm options, and 14 tool stations (optionally 21) in the turret. The BIG-PLUS face-and-taper interface may be specified, as well as through-spindle coolant. Air blast cleaning of the tool in the spindle ensures that the point of cutting remains unobstructed. For efficient swarf management to cope with the enlarged machining area, flood coolant delivery rate has been doubled and new telescopic covers have been fitted.
The 3.3 tonne machine sits in a nominal 2.4 metre square on the shop floor. Energy saving measures in the design, including LED lighting and power regeneration from the high efficiency motors, have reduced power consumption by as much as 80 per cent compared with the manufacturer’s earlier machining centres. A new control, CNC C00, provides faster processing, more functions and higher accuracy machining, especially in 3D.
Brother has built over 100,000 machines in the last 30 years and is about to expand its Kariya plant, near Nagoya, in response to a significant upturn in demand, notably from the IT industry.