On WESTEC, Viper will demonstrate its VT-2100YMS, one of its milling/turning multi-tasking machining centers (YMS Series) at the booth of TMG, Ltd, its dealer in Southern California.
The VT-2100YMS innovatively gathers Live Tooling, Y Axis, Sub-spindle and 2 C Axes in a super-compact design. This feature allows the machine to feed in material and eject the completed parts automatically, therefore the operator is able to do other things while occasionally checking the tolerances of the parts and loading the bar magazine. The automation concept saves production time, improves accuracy, and gives production flexibility – there is no need to meet a minimum quantity. The increased off-centerline milling capacity also allows the machine to make more complicated parts than the conventional machines.
The 30° compound Y Axis slide moves bi-directionally on the 30° X sliding seat, providing a combination of single or two-axes movement accurately. This ensures equal torques on both + or – Y Axis directional movement with a total travel distance of 120mm, versus 76mm of the other machines of the same level. In addition, the Y Axis makes off-centerline cutting on irregular O.D. parts possible. With the addition of Y Axis and a sub-spindle, which synchronizes with the main spindle, the part could run completely on a turning center using the barfeed to address automation. The barfeeder allows the feeding of odd shaped extrusion through the spindle hole (up to 52mm) and completely mills it out with live tooling on the turret on both main and sub-spindles. The finished part is then ejected onto the parts catcher and then parts conveyor.
As with Viper’s other lathe machines, VT-2100YMS has rigid Meehanite cast iron bed construction and box way structure design that provides stability in heavy-cutting operations. The 15kw (20HP), 5000RPM precision spindle, made of alloy steel, is housed in the cast iron headstock. The headstock has thermal deformation prevention design for higher accuracy. The high accuracy P4 grade angular contact thrust spindle bearings ensure precision turning during long-term operations. There are two stages of pressure reduction in clamping the C Axis to obtain high precision and stability during milling and turning.
The main specifications are as follows:
Main spindle chuck C1: 200mm
Main spindle thru bar capacity: 52mm
Sub-spindle chuck C2: 150mm
Y Axis travel: +/-60mm
Y Axis stroke: 120mm
Swing over bed: 600mm
Swing over cross slide: 480mm
Main spindle motor: 15kw (20 HP)
Sub spindle motor: 5.5kw (7.5 HP)
Slideway slant angle: 30°+30°
12 station VDI 40 all live tooling turret