Product category:
Abrasive machining - manual and CNC machines
News Release from: Toyoda Mitsui Europe UK | Subject: GW3A-12, angle-approach, cylindrical grinder
Edited by the Manufacturingtalk Editorial
Team on 29 April 2002
Production grinder has 3-axis loader as
standard
Offered with a 3-axis NC gantry loader as standard an angle-approach, cylindrical grinder has a 320mm swing and 125mm maximum centre distance for grinding small, high precision parts.
New from the grinding machine division of Toyoda will be the GW3A-12, an angle-approach, cylindrical grinder with a 320mm swing and 125 mm maximum centre distance Available also with a straight approach wheel, the machine is Ideal for grinding relatively small components such as fuel injector and electronic parts
This article was originally published on Manufacturingtalk on 14 Jul 2000 at 8.00am (UK)
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The machine is the first Toyoda grinder to be offered with a 3-axis NC gantry loader as standard equipment, allowing long periods of unattended running.
Further integration with other production cells is achieved using pallets or conveyors.
Ideal for use with alumoxide wheels, or with CBN as will be demonstrated at MACH 2002, the machine has a compact footprint measuring only 950mm wide without the loader.
It is also the first Toyoda grinder to be fitted with a Fanuc control - the 21i CNC - rather than the manufacturer's own.
This provide control of six axes, three for the machine and three for the loader.
A notable feature on this and all other Toyoda grinders is the STAT hydrostatic / hydrodynamic wheel spindle bearing.
Absence of metal-to-metal contact and good vibration damping characteristics assure high accuracy and long service life.
Grinding speed is 45 m/s, although 60 or 80 m/s is available for CBN.
Other specifications include 219mm wheelhead infeed and 20m/min rapid traverse rate; 32 - 1,000 rpm workhead spindle speed; and 25mm tailstock quill stroke.
A single point, diamond wheel dresser is standard with the machine.
On show also will be the Toyoda GU4x100 CNC, a universal grinder featuring automatic indexing of the wheelhead under computer control for deploying either the internal grinding spindle or one of two external grinding wheels for straight- and angle-approach.
Powered indexing of the wheelhead is in five degree or one degree increments using a Hirth coupling and hydraulic clamping to ensure precise location.
A full B axis is a further option.
Available in two versions with 1000mm or 1500mm between centres, the machine has maximum internal and external grinding diameters of 300 mm and 120 mm respectively, 320 mm swing over the table and a wheel surface speed of 30m/s (optionally 45m/s).
MACH 2002 - NEC Birmingham.
April 29 - May 3.
Hall.
Stand 5660.
(This was Manufacturingtalk's Top Story on 26 April 2002).
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