| 摘要 |
PROBLEM TO BE SOLVED: To provide a tool replacing device capable of preventing a tool replacing arm from moving during power interruption to an advancing/retracting motor, with a simple configuration and without increasing energy cost.SOLUTION: A tool replacing device comprises: a tool replacing arm 40 having tool holding parts 42, 52 at both end parts; a support shaft for supporting the tool replacing arm 40; a rotation mechanism having a rotation drive motor 25 for rotating the tool replacing arm 40 around an axis line of the support shaft; an advancing/retracting mechanism having an advancing/retracting drive motor 13, for advancing and retracting the tool replacing arm 40 along the support shaft; a mounting base 11 to which the rotation drive motor 25, the advancing/retracting motor 13, and the support shaft are mounted; and a stop mechanism 60 which engages with the tool replacing arm 40 at an original position, for stopping the tool replacing arm 40 moving in a direction along the support shaft.SELECTED DRAWING: Figure 2 |
