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Okuma Corporation (オークマ株式会社, Ōkuma Kabushiki-gaisha) is a machine tool builder based in Ōguchi, Aichi Prefecture, Japan. It has global market share in CNC machine tools such as CNC lathes , machining centers , and turn-mill machining centers.
Bar pullers are used in CNC lathes to automatically draw in bars from the clamping chuck. In this case they serve as a substitute for a bar feeder on an NC/CNC lathe. The clamping chuck is fitted directly into the turret of the lathe or into the bar holder. There are two different versions, depending on the design: Start on the X-axis (starting ...
A feeder line is a secondary assembly line which provides parts for use in a primary assembly line. Researchers assert that the traditional level scheduling methodology of assembly line planning is not effective unless feeder lines provide parts to the primary assembly line.
A bar is characterised by an "enclosed invariant convex cross-section", meaning that pipes, angle stock and objects with varying diameter are not considered bar stock. Bar stock is commonly processed by a sequence of sawing , turning , milling , drilling and grinding to produce a final product, often vastly different from the original stock.
Vibratory bowl feeders, also known as a bowl feeders, are common devices used to orient and feed individual component parts for assembly on industrial production lines. They are used when a randomly sorted bulk package of small components must be fed into another machine one-by-one, oriented in a particular direction.
More commonly used ICs will be provided in tapes rather than trays or sticks. Improvements in feeder technology mean that tape format is becoming the preferred method of presenting parts on an SMT machine. Early feeder heads were much bulkier, and as a result, it was not designed to be the mobile part of the system.
An early example was in the tunnels of the Baltimore Belt Line, where a Π section bar (fabricated from three strips of iron and mounted on wood) was used, with the brass contact running inside the groove. [9] When the overhead line was raised in the Simplon Tunnel to accommodate taller rolling stock, a rail was used.
The first version of modern controlled-access highways evolved during the first half of the 20th century. The Long Island Motor Parkway on Long Island , New York , opened in 1908 as a private venture, was the world's first limited-access roadway.