作者: Mouafak C. Albasateneh
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摘要: A pneumatic bar feeding apparatus for advancing a length of stock to CNC center machine processing and including pair concentric tubular members which are housed in housing supported by vertical spaced apart support stands. The inner member is from the interior surface outer at least three bearing bushing devices located separate locations. rear end airtightly sealed so that air pressure does not leak out. An actuating assembly movably installed within includes slidable piston, rod connected piston coil spring surrounds biasing entering into carrier also member. comprises plurality step-down portions accommodating different size diameters stock. adapted receive therein such one fitted portions. generate noise vibration because prevent striking it vibrating