Product category:
Abrasive machining - manual and CNC machines
News Release from: Junker Maschinenfabrik, Erwin | Subject: Centerless cylindrical grinding machines
Edited by the Manufacturingtalk Editorial
Team on 07 October 2005
Full-width CBN centreless grinding saves
time
Centerless cylindrical grinding machines uses CBN wheels offering simultaneous abrasion along the entire grinding wheel width, which ensures considerably reduced machining times.
The Jupiter centerless cylindrical grinding machine operates with CBN grinding wheels, which, especially with large batch sizes, creates significant productivity advantages due to the long service life of the grinding wheel This is coupled with the simultaneous abrasion along the entire grinding wheel width, which ensures considerably reduced machining times for both large and small-scale production
This article was originally published on Manufacturingtalk on 7 Oct 2005 at 8.00am (UK)
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This reasonably priced machine is equipped with six CNC-controlled infeed axes and a Siemens Sinumerik 840D control.
Within the scope of the Saturn double-wheel surface grinding technique, two vertical grinding wheels simultaneously machine the workpiece at its parallel outer sides.
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Depending on the workpiece profile, one Saturn machine can be configured for three different machining processes: With rotation grinding applications, cylindrical or rectangular workpieces are fed to a rotation workpiece carrier.
With parallel grinding applications, rotationally symmetrical parts are linearly fed between the grinding wheels.
And with pendulum grinding applications, profile-independent workpieces swing between the workpieces while being fixed in a pendulum workpiece carrier.
Thanks to the swift process flows, a high efficiency rate is achieved for large-scale production with all three procedures.
The ease of retooling enabled by the simple transport wheel replacement is especially advantageous for small batch sizes.
The Synchro 4000 multi-wheel grinding machine serves for the plunge grinding of centric workpieces in a single clamping.
The number of grinding wheels used for operation is freely selectable and only limited by the grinding length.
The Duo 4000 multi-wheel grinding machine is identical with the Synchro as regards principle and design.
The only difference is basically that the Duo 4000 has synchronously running, special eccentric clamping chucks.
Thus, the machine facilitates the parallel grinding of simultaneously running pin bearings on crankshafts in a single undercut and clamping.
BSH Holice joined the Junker group in 1999 and, as distribution, service and production site, is an important company within the Junker group.
The grinding machines produced here are technically independent solutions and are also distributed and serviced from Holice, Czech Republic.
The second company division includes the production of machine supports and components for Junker grinding machines.
Amongst others, also the machine supports for the new Junker machine concept Evolution2 are produced at this site.
The BSH grinding technologies are unique in the technology portfolio of the Junker group.
The BSH production range comprises centerless cylindrical grinding machines, double-wheel surface grinding machines and multi-wheel grinding machines.
Junker BSH grinding technologies are applied by many renown automotive manufacturers, automotive suppliers and in the bearing industry In Holice, 230 employees are engaged in production and installation on an area of approx.
4,500m2.
A 5,472m2 large hall is currently under construction, which, apart from installation areas, will also integrate a new technological development centre and a measuring room.
With this construction project, the Junker group is giving a clear signal about the future and will strengthen BSH Holice as an important production and development site.
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