Modern Machine Shop

APR 2016

Modern Machine Shop is focused on all aspects of metalworking technology - Providing the new product technologies; process solutions; supplier listings; business management; networking; and event information that companies need to be competitive.

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168 MMS April 2016 MODERN EQUIPMENT REVIEW Spotlight: Turning The You Ji Y V-600E2T ver tical turning center, available from Absolute Machine Tools, is designed for large lot-size machining of big aluminum wheels or similar parts. Maximum swing is 33.4" and the maximum turning diameter is 29.5". This compact, high-precision machine can operate as a stand- alone machining cell or can be integrated with other machines to form a complete, flexible man- ufacturing system. The rigid vertical column and base are made of Meehanite castings, heavily ribbed for reduced thermal distortion and improved vibration damp- ing. The X and Z axes employ roller-type linear guideways. By using sliding covers inside the machine, problems with chips in the guideways are vir tually eliminated, the company says. All ways are completely enclosed, while a forced lubrication system ensures precise production. The high-speed way systems enable rapid traverse rates of 787 ipm. The Class 3 ballscrews are driven directly by the servomotors, eliminating belts or gears, for more exact machining. The spindle construction incorporates double VERTICAL TURNING CENTER MACHINES LARGE PARTS WITH 100-HP SPINDLE roller bearings as well as 45-degree angular contact thrust bearings. It is also protected from coolant contamination. The NN-t ype spindle bearings support high centrifugal loads as well as high spindle loads. A 100-hp, high-torque motor drives the spindle via belts, providing power for heavy-duty machining and high speeds necessary for fine finishing. Twin six-position hydraulic ver- tical hex turrets are mounted on the rams with bolt-on tooling. Turret index time is 0.8 sec. with fast tool selection. Chips and coolant wash directly into the stan- dard caterpillar-type, right-side-discharge chip conveyor. The machine's interior is sloped toward its front, directing the chips and coolant to the conveyor running across the front of the machine. A chip wash system aids in chip removal. A FA N U C O i T- F c o ntro l p rov i d e s e a s e of use and reliabilit y. O ther control options are also available. Absolute Machine Tools Inc., call 800-852-7825 or visit HMC PERFORMS TURNING, MONITORS FOR PRECISE CLAMPING Heller's CP 4000 horizontal machining centers accomplish horizontal, vertical and tilted turning using A and B axes with high dynamics and chip removal rates. Suitable for a range of applications, the five-axis turn-mill is equipped with PCU 63 swivel head unit and HSK-T 63 spindle taper. The machine's X travels measure 800 × 800 × 1,045 mm. With 44 kW of power, 242 Nm of torque and s p e e d s r a n g i n g to 10,0 0 0 r p m, th e s p i n d l e e n a b l e s t h e t u r n - m i l l to p e r f o r m c o m p l e x turning operations while maintaining precise c o ntro l of s p e e d, ac c e l e rati o n a n d va r i a b l e a d j u s t m e n t to a c h i e v e w o r k p i e c e - s p e c i f i c

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