VSC 400 PS POWER SKIVING
Power skiving and turning for complex gearing solutions
VSC 400 PS – POWER SKIVING AND TURNING FOR COMPLEX GEARING SOLUTIONS
For many users in gear production, power skiving is becoming more and more interesting. Not without reason, since the process is much faster than shaping and more flexible than hobbing and broaching. However, the process was considered to be complicated for years.
Against this background, the new development from EMAG is a “game changer”: On the one hand, the VSC 400 PS machine makes power skiving very easy because the operator only has to enter very little data. You no longer have to be a gearing expert. On the other hand, the VSC 400 PS can be equipped with up to four power skiving tools and six turning tools. As a result, users can quickly and reliably finish even complex components in a single clamping operation.
WORKPIECES
Internal and external gears are used almost everywhere. Geared components and lots of gear wheels are essential for electromobility, planetary transmissions and hydraulics, for example.
WHY IS POWER SKIVING BECOMING SO MUCH MORE WIDESPREAD?
Various gear cutting processes are used for different types of component. Gear shaping, for example, although this is a rather slow process. The alternative, hobbing, requires a relatively long runout on the component and is also not suitable for use for internal gears. And broaching is not suitable for dealing with collision points. This is why power skiving is often the best solution – particularly for internal gears.
THE VSC 400 PS FOR
COMPONENTS
with a maximum diameter of 340 mm and a maximum height of 420 mm
Machines
UP TO FOUR DIFFERENT HOB PEELING TOOLS IN USE
The VSC 400 PS power skiving machine not only combines power skiving with turning processes, but can also hold up to four different power skiving tools on two spindles. In addition, it can be equipped with up to six turning tools. All users can therefore enjoy a number of benefi ts as the combination makes a range of variants possible:
For example, the roughing process (using a tool with inserts) and subsequent finishing (using a carbide-tipped tool) can be completed quickly in successive operations in a single clamping cycle and on one machine. This enables users to reduce investment costs and minimize the total machining time for a component.
Alternatively, the machine can also produce four different external and internal gears with four tools using its two spindles on which up to two power skiving tools can be mounted. One of the major benefi ts of this is that at the end of the process – the position of the gears relative to each other is perfect. This is made possible by the fact that the work is completed in a single clamping cycle. In other words, there is no need to measure the first gear before manufacturing the second one. 1 2
The new VSC 400 PS power skiving machine combines power skiving with turning processes.
The “pre-turning and power skiving” combination delivers similar efficiency. The single clamping cycle of the workpiece in this case delivers perfect results in terms of true running and so on, as well as minimal cycle times.
BENEFITS AND TECHNICAL DETAILS OF THE VSC 400 PS
Users benefit from a whole series of technical details on the VSC 400 PS, which is designed for components with a maximum diameter of 340 mm and a maximum height of 420 mm.
Direct drive units in the main and milling spindles deliver perfectly synchronized axes during the cutting process. In addition, the very rigid B-axis enables a wide range of axis intersection angles to be used – in other words, the pitch angle of the tool, which is always at a slight angle to the component for power skiving. This angle delivers the actual cut.
A typical value is between 15 and 25 degrees, although EMAG has also designed power skiving processes using an angle of around 45 degrees. A small amount of material is removed during each engagement – making the process both fast and precise. In addition, the typical quality features of the EMAG machine construction pay dividends. For example, the symmetrical design delivers a closed power fl ow, which again benefi ts the precision of the workpiece.
In addition, hydrostatic guides ensure that vibrations are dampened. This, in turn, delivers significantly longer tool service life.
WHERE DOES THE VSC 400 PS SHOW ITS STRENGTHS?
Essentially everywhere where high quality internal and external gears are required, with the machine being primarily designed for fl ange parts. Where: The more turning operations or different power skiving processes are required on the component, the more effective the machine is. TECHNICAL
