Product category:
Tool and cutter grinding
News Release from: Schneeberger, J | Subject: Corvus broach grinding machine
Edited by the Manufacturingtalk Editorial
Team on 03 January 2008
5-axis machine grinds different broaches
For grinding flat, cylindrical or helical broaches, a 5-axis machine produces exceptionally high accuracies owing to the machine's rigid and robust construction.
Schneeberger will demonstrating the latest generation of the Corvus broaching machine and the Norma tool and cutter grinder at the UK's MACH 2008 machine tool exhibition (Birmingham NEC, April 21-25) The 5-axis Corvus broaching machine combines exceptional accuracies with powerful production, said Schneeberger
This article was originally published on Manufacturingtalk on 11 Jul 2006 at 8.00am (UK)
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Precision tool grinding machines are sought after
Grinding machine supplier, J Schneeberger, reports that the company had received a substantially high number of serious enquiries at MACH 2006 for its high precision tool grinding machines.
Machine grinds round and flat tooling
Tool and cutter grinder is able to grind round and flat tooling and is equipped with a highly versatile loader, which also accepts both round and flat components.
As a result of working closely with customers, Schneeberger told manufacturingtalk.com that its engineers have created machine kinematics and powerful software to provide the user with a highly efficient, precision system for grinding flat, cylindrical or helical broaches.
* High accuracies - exceptionally high accuracies are obtained during grinding because of the rigid and robust construction of the machine, based on a machine bed made from advanced polymer concrete to provide excellent machine stability and resistance to thermal expansion.
With a high powered workhead of 1200Nm and a grinding area of more than 2500mm, the Corvus can grind accurately workpieces with large dimensions or heavy weight.
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Software eases grinding of complex cutters
Software permits the easy grinding of even the most complex tools, with grinding strategy selected according to the cutting out of end cutters.
Machine grinds micro-tools as small as 0.4mm
A grinding machine has been designed specifically to meet the demands of machining micro-tools as small as 0.4mm and does not exert grinding forces on the work piece.
Wide doors facilitate crane access.
The high performance direct drive spindle has a grinding capacity up to 34HP (26kW).
The powerful internal cooling system ensures thermal stability even when high rates of material removal are required.
Electronic probing provides optimum positioning.
* Integrated measuring software - integrated measuring software for each tool type gives the user free determination of the measuring cycle.
Automatic dressing and profile grinding are based on the loader cycle.
Standard or profiled grinding wheels are according to dfx drawings, with specific profile grinding cycles for gear hobs an option.
Tail stocks or steady rests are manual or automatic according to user requirement; tool supports for reamers, heavy cutter heads and disc shaped special tools are available.
Application specific tool holders, chucks and special workholding systems can be provided by Schneeberger.
Tool clamping is manual or automatic.
Loading is by robot, gantry loader, pallet stack or tool holder carousel.
Specifications include X-axis up to 2900mm, Y-axis up to 300mm and Z-axis up to 300mm.
The axes have a resolution of 0.1 micron.
A-axis workhead is ISO50, free rotary motion and has a resolution of 0.0001deg.
C-axis is 240 deg with a resolution 0.0001 deg.
Control is by the Fanuc 160iB.
* Norma tool and cutter grinding machine - Schneeberger will also display the latest generation of its Norma tool and cutter grinding machine, which is also available in a version engineered for grinding micro tools.
Using standard grinding tools the machine performs the following.
* Right or left handed cutting.
* Positive or negative helix.
* Chamfers.
* Bevelled tools.
* Corner radii.
* Ball nose cutters.
* High performance drills, and a wide range of other tools.
Profile tools can be produced with minimal set-up and change-over times, said Schneeberger.
The tool and cutter grinder has the latest generation of the powerful Quinto intuitive software, which is easy to learn and is equipped with a carefully designed ergonomic user interface.
Quinto v5 has integrated databases, help functions and dynamic diagrams displayed on the large, 15in colour touch screen.
New loader mechanics have been employed.
The new gripper has integrated sensors and an extended clamping range.
The proprietary VARIO system for automatic grinding of tools which have a wide variety of dimensions has a pallet with an automatic pocketing system for holding up to 49 tools of diameters ranging from 5 to 20mm.
A self-centring chuck, automatic loading and a software package created for flexible programming completes the package.
The exceptional stability of the Norma machine, due to a machine bed made from advanced polymer concrete, enables the machine to run at the highest accelerations and fastest axes movement, said Schneeberger.
The optional measuring system has a resolution of 50nm.
The robust grinding spindle, designed by Schneeberger's engineers for optimised thermal stability as well as noise and vibration free operation, has a grinding capacity of up to 11kW.
Power and productivity of the Schneeberger grinding machines is due to the decades of experience its engineers have of working closely with customers to meet their requirements exactly.
The application engineering ability of the company - whether for standard or bespoke machines - is recognised throughout the industry as second-to-none, said Schneeberger.
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