| 摘要 |
PURPOSE:To enable an operation of gear cutting work, by fixing the base material of gear without using a rotary table, and shifting instead a position of the tool, when performed the operation of gear cutting work of a big helical gear with a horizontal boring machine used. CONSTITUTION:A gear base material 1, fixed on to the floor surface through a mounting fixture 5, is worked by a milling cutter installed to the point end of a head stock 3 of a horizontal boring machine 4. The head stock 3 is made controllable in the direction of X-axis, Y-axis and Z-axis, though in the same manner as a conventional horizontal boring machine, in order to make a rotating angle controllable within a horizontal plane of the milling cutter 2 installed to the point end of this heat stock 3, a swivel spindle, that is, a spindle B2 is additionally provided. And a rotary shaft of the milling cutter 2 is installed in a manner with a slope provided for the horizontal plane by an angle equal to the helical angle of a helical gear to be worked. In this way, for the base material 1, fixed to the constant position, can be operated a work of gear cutting by shifting a position of the tool. |
