| 摘要 |
<p>A cutting tool including a cutting tool holder, an indexable cutting tool insert having a plurality of cutting edges and a locking and indexing mechanism for the insert. The mechanism includes a cam plate slidably mounted in the holder for securing the insert in a cutting position, and a rotatable locking pin extending through the insert and into the holder for holding the insert at one end thereof, wherein the pin includes a ratcheting portion adapted to be engaged for rotation of the pin and indexing of the cutting insert upon movement of the plate from the insert. The mechanism also includes a cam pin rotatably secured to the holder for moving the cam plate from and into securing engagement with the insert, and a key slidably mounted in the holder having legs for engaging the ratcheting portion of the locking pin for rotation thereof and indexing of the insert to a new cutting position upon movement of the cam plate from the insert.</p> |
