EMO Hannover 2019,
16 - 21 September
„Give me a long enough lever and a place to stand, and I will move the Earth…(Archimedes' Law of Levers, 250 BCE)“It is not quite so spectacular, but nevertheless closely related. „Give me a point on the turret disc that I can rely on, and aligning radial tools on the tool changer is a thing of the past.“These were the fundamental requirements on EWS engineers… and they came up with the EWS-Adjust.The trick is to position the line of symmetry for the insertion hole in the turret congruent with that of the alignment pin. Time-consuming angle of rotation calibration is no longer required if this is guaranteed and implemented on all tool stations.This is precisely what EWS has achieved with its Adjust system. Incidentally, this solution can be retrofitted to many tool turrets at any time. Mode of function in detail:Aligning using 2 screws on a pin in the turret is a widely used method. However, this time-consuming calibration, especially when it comes to machines with 2 turrets (up to 28 tool stations) degrades the high fast motion speeds, rendering them insignificant. The gains in travel speeds are eliminated by the enormously long setup times.Irrespective of how the alignment on the pin is designed, it always takes time to achieve the setting, because the DIN pins that are generally used are never located exactly in position in the turret bore. If you consider that a PIN–position is 10μm offset in the Y-axis at a distance of 56 mm (in relation to the VDI bore), this amounts to as much as 0.03 mm on a normal drilling rod holder with an extension length of 100 mm. This consideration does not take account of the installation inaccuracies in the machine-tool.EWS has tackled this problem with its new EWS-Adjust system. The goal was to eradicate the problem.There is only one way of doing this; the pin on the turret must be aligned, and this must be done on the machine, preferably in the machining position. For this purpose, EWS has developed an eccentric pin that is fitted into the same bore when the standard– pin is removed.Together with an EWS setting pin, the pin can be aligned precisely with the machining position. The lower part of the eccentric is an expanding pin which is acted on by a threaded pin, thus securing the angle of rotation position.This task must be done once for all turret stations. The tool that is used on the turret can be set using an external fixture. This is also only necessary once, providing there are no collisions.The EWS-Adjust bar is provided with a fixed part with a counter screw opposite to eliminate the last play between the bar and pin. The system can be retrofitted to almost all tools supplied by EWS.
EWS takes measures against vibrations in deep drilling procedures
Deep drilling procedures with drilling rods with a long overhang are one of the most demanding ...
EWS quality now available for Swiss-type lathes.
This new development in driven tools is EWS's response to many customers' requests. The tool systems may appear ...
Driven tools form a further core area of EWS. More than 8,000 different tools are available at short notice.
In addition to standard products like axial and angular ...
Static tools form one of the EWS core areas. There is no other manufacturer in the world offering such a variety of products: More than 20,000 different tool holders ...
EWS goes milling
With its latest range of angular heads, EWS brings its trusted technology with new features to machining centres. The system range was presented ...
Tool turret for the world market
With its new turret program, the EWS Group is offering the full service for machine builders.
For the first time, the specialist ...
High-speed thread cutting with reversing kinematics.
The new EWS Tapmatic thread cutting head for driven tools enables thread cutting processes without having ...
Trifix® is the new adjusting system for Gildemeister multi tasking machines. The double sided adjusting system is guided by a very precise key way at the surface ...
Restraint is the key
Thanks to its short design, the new HSK-63AT collet holder for multi-tasking machines means that you can be flexible even in the smallest of ...
Reaching concentricity 0 using a simple collet chuck and this within one minute: this is Zero-Zero.
The specifically designed clamping nut with 6 symmetrically ...
Emulsion can do more than just cool...
At least when using EWS Spinjet, the coolant is used to drive a turbine which allows the tool to rotate to up to 60,000 rpm, ...
The EWS CAPTO-series offer standard solutions as well as a great number of machine optimized toolholders. Moreover we provide toolholders with plate fit.
The EWS CAPTO-series imply size C4-C8.
Gear hobbing on CNC lathes without B-axis
Years ago, EWS was the first tool manufacturer to offer gear hobbing heads in its standard range, and has continued to ...
The best of both worlds!
Insufficient stability was a fact increasingly associated with the VDI system in recent years. As a result, block tools were preferred ...
Make any centric or eccentric form desired
4, 6, or 8 edged, polygonal or free form with the EWS Multiform on the CNC turning/milling machines
Free forms that ...
The solution for multiple
The new EWS Drillstar offers an intelligent tool arrangement a tremendous use of the cutting tool length, in spite of a limited total ...
The changeable centring tip for counter spindles
Would you like to use your counter spindle temporarily as a tailstock, and then once again as a normal chuck? ...
Measuring device for setting tool change systems.
Precise setting of tool change systems always used to be a complex procedure.
Thanks to the new EWS-Calibrit, ...
The HSK series from EWS offers standard solutions as well as a large range of machine optimised tool holder fixtures. Tool holder fixtures with insert seats are ...
The rapid change system EWS-Varia allows to set-up a modern CNC lathe or a turning milling center – and this flexibly.
A tool change will just take 20 seconds, ...