Sliding Headstock on Six Spindles
On my most recent trip to Europe, I visited the headquarters of Tornos in Moutier, Switzerland. The timing was good because we were in the process of wrapping up an article for our November issue about the company’s Cyklos surface finishing machine designed to give shops the ability to integrate electrochemical or chemical surface processing into their manufacturing lines. More about this machine can be found in the Tech Brief “Finishing Touch.”
As it turns out, the Cyklos is produced in a different facility than the one we toured. But I did get to see a number of other Tornos machines in various stages of production. The one that most caught my eye this time through was the MultiSwiss, a six-spindle CNC that provides sliding headstock capability on all six spindles. This machine was first introduced at last year’s EMO and was also displayed at IMTS in September.
Designed for parts less than 14-mm diameter (40-mm length), it features 14 linear axes, seven C axes and room for as many as 18 tools (three per position). Quick-change flexibility, wide-open access to the machining area, and the use of standard tooling contribute to its productivity advantages.
The machine is the result of 4 years of research and development in an effort to bridge the gap between single-spindle and multi-spindle lathes. More details can be found in the article “A Multi-Spindle and Swiss Combination.”
Improving surface finish can be done by making adjustments to one or more of these points: operational parameters, wheel dressing, grit size, coolant delivery and machine condition.
This attachment provides shops using thee-axis machining centers the option of on-demand four- and five-axis machining.
Introduced to the turn-mill machine tool design in about 1996, the Y axis was first used on a single-spindle, mill-turn lathe with a subspindle. The idea of a Y axis on a CNC originated from the quality limitation of polar interpolation and the difficulty in programming, not from electronic advances in controls or servomotor technology as one might commonly think.