OD Cylindrical Grinders Enhance Positioning Accuracy
IMTS 2018: Sharp Industries will display its model OD-1524X CNC OD cylindrical grinder for toolroom or production grinding applications.
Sharp Industries will display its OD-1524X outer-diameter cylindrical grinder for toolroom or production grinding applications. The CNC grinder has an OD grinding range from 8" to 24" and a distance between centers ranging from 20" to 80". Models with traveling wheelheads can grind lengths ranging to 160". The workhead can swivel 90 degrees counterclockwise and 30 degrees clockwise for various grinding operations. The wheelhead travels on the saddle with hand-scraped and Turcite-coated V ways and flat ways. A 0.00002" linear feedback system is said to deliver high positioning accuracy and repeatability. The table travels on a cushion of oil with no metal-to-metal contact. An optional ID attachment is available for internal grinding operations.
A FANUC Oi-TC CNC and drive system delivers precise movement of the wheelhead and the table. Other optional accessories include crash control, gap control, a touch probe and an auto-sizing device.
Because of the high material removal rate creep-feed grinding can deliver in challenging materials, grinding might not be just the last step in the process—it might be the process.
It sounds like a contradiction in terms-between centers and centerless grinding on one machine. But for some categories of workpieces, it's a viable production process that can yield machining time reductions of 45 percent over separate grinding operations.
Wire EDM units that swivel a horizontally guided electrode wire in a CNC-controlled E axis give this shop the workpiece clearance and flexibility to produce complex, high-precision PCD-tipped cutting tools.