Product category:
Abrasive machining - manual and CNC machines
News Release from: Fritz Studer | Subject: Studer S31, 32, 40 and 60cnc cylindrical grinders
Edited by the Manufacturingtalk Editorial
Team on 21 May 2002
Production cylindrical grinders are
fast, precise
The highly productive S-series of cnc cylindrical internal and external grinding machines offer a wide range of options, fast setting-up and high precision.
Grinding Technology for Tool Production The highly productive S31cnc cylindrical internal and external grinding machine has a wheelhead with two external grinding wheels for rough and finish grinding left/left Range of applications includes any type of cylindrical internal and external machining for automatic production of individual components and series
This article was originally published on Manufacturingtalk on 17 May 2002 at 8.00am (UK)
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The S31cnc is available with a distance between centres of 650/1000mm and a centre height of 175mm.
The machine has now been completed with an additional wheelhead version.
Further reading
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Internal grinders machine flexibly within microns
Safety critical machining of fuel injection components in large series, or universal machining of small series, always within tolerances of a few microns: these are the jobs for internal grinders.
External cylindrical grinder offers more scope
A cylindrical, external grinding machine offers much wider scope with regard to accuracy, quality and concept, and at an extremely competitive price.
This allows the installation of two motor spindles.
Consequently, two diagonally installed grinding wheels, with diameters up to 500mm, can be used.
Thanks to the independently programmable drives, these wheels can be adapted optimally for the respective grinding task, guaranteeing a large speed and perfor- mance range.
The B-axis swivels automatically with a resolution of 0.0001deg so that even the smallest taper angles can be processed with cylindrical grinding wheels to extreme accuracy.
The Studer S32cnc is a fast, accurate and reliable external, cylindrical CNC grinding machine.
The S32cnc has chameleon-like properties.
Thanks to the large variety of extensions and versions, a large number of applications can be carried out on this machine according to customers requirements.
This is possible thanks to X-axis versions at 0deg or 30deg, and the possibility of positioning the grinding wheel on the left or the right side.
Thanks to the versatile machine concept, this machine permits a selection of the most suitable grinding method, according to individual customer requirements.
This means that the machine can master simple and complex tasks in a very high quality.
In the standard version, with the grinding wheel on the right side and a distance between centres of 400mm, this machine is perfectly suited for grinding small and average-sized workpieces.
In conjunction with the diamond roll dressing attachment, the S32cnc becomes a highly productive machine.
Of course, thanks to the proven Studer concept it can be automated easily.
The use of our C axis turns the S32cnc into a high-power plunge grinder.
In this context, the hydrostatic guideways of the X axis play an important role as they allow extremely rapid axes traversing with a minimum of axis lag.
Due to the new materials that are emerging in the market, the machining process has to be adapted to the situation.
The S32cnc can also master this problem as it can be equipped for high-speed grinding.
With a cutting speed of more than 125m/sec, even materials difficult to machine, such as zirconium ceramics or tungsten carbide, can be processed economically.
The Studer S40cnc is a highly productive universal internal and external cylindrical grinding machine.
Its range of applications includes any type of external and internal cylindrical grinding task for the automatic production of one-off and series production.
The modular machine structures, the modern control and the programming technique as well as the most recent grinding technology guarantee a high productivity and machining quality.
The S40cnc is available with distances between centres of 1000 or 1600mm and centre heights between 125 and 225mm.
Wheelheads and workheads for practically any type of use are available.
The B-axes is oriented automatically with a resolution of 0.0001deg so that even the smallest taper angle can be ground to the utmost accuracy with, straight grinding wheels.
We show the universality of the machine on a complex chuck element.
Grinding of forms and threads is always one element of complete machining.
The position and speed-controlled C-axis renders these grinding procedures possible.
A measuring system installed on the motor axis of the workhead or on the work spindle provides maximum form accuracy of the form during the grinding process.
Acceleration and grinding forces are easily absorbed by the dynamic rigidity of the axes drives.
With regard to thread grinding parallel to the axes, the grinding wheel is not swivelled to the pitch angle of the thread, but it remains in the vertical position so that its angle of rotation remains parallel to the Z-axis.
Consequently, while grinding the thread there will be a distortion of the profile which is compensated by the Studer software StuderThreadCNC to a negligible deviation.
By calculating the profile distortion and the automatic generation or optimised dressing programmes, thread grinding becomes nearly as simple as plunge grinding or traverse grinding.
The Studer S60cnc is designed for the grinding of tool holders with the universal and production external cylindrical grinding machine.
Progress can be obtained by force.
One is tempted to say this when watching the Studer S60cnc in operation.
In order to fulfil the increasing requirements of the tools, the quality of the tool holding fixtures has to be improved continuously.
The very best quality of the workpiece is obtained if it can be processed in one single clamping and in one machining pass.
The Studer S60cnc permits complete grinding of tool holders up to the dimension ISO50.
By complete grinding we mean: the V-groove, the external diameter, the taper and, if required, the shoulder of the taper in one plunge cut.
Work is carried out by means of a profiled grinding wheel.
The S60cnc with its elements entirely laid-out for the production, for instance the grinding wheel width of up to 160mm and the grinding wheel diameter of 750mm, is perfectly suitable for this type of application and therefore provides excellent grinding results.
With this procedure, a tool holder ISO 50, for instance, is manufactured to quality class AT-3 in just less than 90 seconds.
For this machine, the quality class AT-1 is no problem any longer.
In fact, it is a standard machining task in a second clamping combined with in-process gauging.
The taper is ground by means of X- and Z-axes interpolation.
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