| 摘要 |
PURPOSE: To supply oil or compressed air simultaneously with positioning and fixing in a machine tool by inserting and fixing a pin of a corresponding actuation mechanism to a spindle nose hole actuated by a tool holder moving mechanism. CONSTITUTION: At a nose part of a machine tool spindle 2 having a rotation motion transmission member 20, a block 1 is fixed by a bolt 3 at a position apart from a center for a specified distance. This block 1 has a center seat 9, and side seats 10, 11 in a front surface to form steps, and holes 12 are provided in the side seats 10, 11. As a mechanism 24 such as a rotary multiplier is installed on the spindle 2 in such a way that the rotation motion transmitting member 20 is engaged, pins 25, 25 of a fixing member 26 are inserted into the holes 12, and compressed air is supplied from the hole 12 in the side seat 10, with a ball 30 pushed to open against a spring 21 to supply fluid from an O-ring gasket in the hole 12 in the side seat 11 to the mechanism 24. A desired actuation mechanism can thus be positioned to the spindle nose part, it can be automatically fixed, and compressed air or oil can be supplied. |
