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    • 82. 发明专利
    • GEAR SHAPING DEVICE
    • JPH06226531A
    • 1994-08-16
    • JP2979293
    • 1993-01-26
    • YUTAKA SEIMITSU KOGYO LTD
    • SATO NAOTOSHIYAMAGAMI YOSHIHIROKANAMORI KUNIHIKOSHIONO YOSHIO
    • B23F9/10B23F9/12B23F21/24
    • PURPOSE:To provide a gear shaping device having the capability of inexpensively and yet efficiently machining the tooth space of different size and shape. CONSTITUTION:A tool main spindle 26 is caused to rotate on the operation of a servo motor 62 for tool rotation via a reduction gear train 70 and a shaft 68. The rotation of a servo motor 82 for tool travel is converted to linear motion via a ball screw 84 and a nut 86 for transmission to the spindle 26, thereby causing the travel thereof along a rotational center line. In the case of the rough machining of tooth space on a gear element, a front milling cutter 34 is mounted on the spindle 26 and shifted, while rotating, to perform the rough machining of the tooth space. The finish machining of the space is undertaken after changing the cutter 34 to a disc broach. According to this construction, the travel distance of the front milling cutter 34 and the disc broach can be arbitrarily adjusted by controlling the rotation of the motor 82. Furthermore, a relief section can be formed, and a correction or the like can be made, regarding crowing and tooth trace.