| 摘要 |
PURPOSE:To improve machining efficiency ever so better, by ruling out the cutting width of a work bar with a degree of contact between a cutting blank held inside a cutter and the succeeding insetting work bar, while cutting the work with the cutter and constituting it so as to perform the end face machining, in case of cutting the work bar end face into a specified form. CONSTITUTION:When a work bar W is made to rush into a cutting hole 32a, it comes into contact with a test blank held in a takeout arm holding hole or a preceding cut blank whereby its cutting width is determined in consecutive order. Then, a cutting blank 31 is formed after being but by a cutter 32. In succession, the cutting blank 31 is put in space between a pair of arms 50 by slide motion in a takeout holder 40. Next, after the cutting blank 31 is chucked by both chucks 61 and 62, an end face of the cutting blank 31 is cut in the desired form by means of a disklike cutting tool 74. Then, the chucking is released free whereby the cutting blank 31 falls plumb down with its dead load. With this constitution, betterment in a tield rate and a shortening of machining time both are well promoted and, what is more, improvements in machining efficiency are well contrived. |
