Vertical Turning Centers Perform Heavy Cutting with Less Friction
The Giddings & Lewis V series available from Fives Machining Systems is a line of vertical turning centers designed for shops that need a multi-purpose lathe capable of handling a range of parts such as pumps, valves, gears, bearings, compressors, wheel hubs, jet engine housings and more.
The Giddings & Lewis V series available from Fives Machining Systems is a line of vertical turning centers designed for shops that need a multi-purpose lathe capable of handling a range of parts such as pumps, valves, gears, bearings, compressors, wheel hubs, jet engine housings and more. The series features a solid cast iron base construction, optional live spindle attachments and a C-axis table.
All six models, with table sizes ranging from 800 to 2,500 mm, feature a hydrostatic ram that adds rigidity, enabling heavy cutting with less friction for improved part finish. The hydrostatic, wear-free guides require less maintenance, according to the company. The infinitely adjustable cross rail serves as a programmable positioning axis, able to handle a range of parts and to minimize ram extension. Dual-scale feedback delivers precision and ensures parallelism, while the hydraulic cylinder elevation adds a secure 1,000 kN (225,000 lbs) of mechanical clamping force per side.
The VLock tooling system provides a stiff interface for modular tooling adapters, long cutting tools, and an optional heavy-duty, right-angle milling attachment. According to the supplier, modular turning tools offer greater taper stiffness at loads ranging to 1,800 Nm. These machines provide through-tool coolant and 8-bar (116-psi) flood coolant in addition to a 12-position tool-storage disk, as well as options for high-pressure coolant and an 18-tool storage disk. Other options include tool and part probes to increase utilization and ensure part quality.
This manufacturer’s use of live-tool lathes overcomes labor cost in various ways. One of the latest sources of savings involves bringing another operation—hobbing—into these machines. INCLUDES VIDEO.
Form tools are traditionally associated with non-CNC machines, but in certain applications they make sense on modern machines as well.
The additional rotary milling axis on these machines allows them to complete many types of complex parts in a single setup, but these machines have gained a reputation for being difficult to program. Today’s CAM software, however, eases the programming challenge significantly.