Temporary coupling mechanism for cutting tip and indexable cutting tool with same

A cutting tool having a temporary coupling mechanism and comprising:

• a tool body having a center line around which the tool body rotates, the tool body having a cutting part at a forward end thereof, the cutting part provided with at least one tip pocket which opens out to said forward end;
• and
• a cutting tip located in the tip pocket, the cutting tip configured to be secured in the tip pocket by at least one clamping member;
• wherein:
• the tip pocket comprises a first coupling portion;
• the cutting tip comprises a second coupling portion;
• the first coupling portion and the second coupling portion are engaged to one another;
• such that:
• when the tool body is oriented such that tool body center line extends in a vertical direction with said forward end facing in a downward direction, engagement of the first coupling portion to the second coupling portion prevents the cutting tip from dropping out of the tip pocket due to an effect of gravity, even in the absence of the clamping member securing the cutting tip to the tip pocket;
• and
• the cutting tip is movable only in a predetermined direction relative to the tip pocket;
• the tip pocket's first coupling portion comprises a concave groove, the concave groove extending in a direction transverse to the tool body's center line and opening out to a peripheral face of the tool body;
• the cutting tip's second coupling portion comprises at least one convex portion which extends in a direction transverse to the tool body's center line, when the cutting tip is loosely retained in the tip pocket;
• the cutting tip has a substantially rectangular top face with long sides and short sides;
• and
• the at least one convex portion is formed on the top face of the cutting tip, along a short side thereof.

A cutting tool having a temporary coupling mechanism and comprising:

• a tool body having a center line around which the tool body rotates, the tool body having a cutting part at a forward end thereof, the cutting part provided with at least one tip pocket which opens out to said forward end;
• and
• a cutting tip located in the tip pocket, the cutting tip configured to be secured in the tip pocket by at least one clamping member;
• wherein:
• the tip pocket comprises a first coupling portion;
• the cutting tip comprises a second coupling portion;
• the first coupling portion and the second coupling portion are engaged to one another;
• such that:
• when the tool body is oriented such that tool body center line extends in a vertical direction with said forward end facing in a downward direction, engagement of the first coupling portion to the second coupling portion prevents the cutting tip from dropping out of the tip pocket due to an effect of gravity, even in the absence of the clamping member securing the cutting tip to the tip pocket;
• and
• the cutting tip is movable only in a predetermined direction relative to the tip pocket;
• the at least one clamping member comprises a wedge member secured to the tool body;
• and
• the wedge member is configured to abut a top face of the cutting tip and press a seat face of the cutting tip against a tip mounting seat of the tip pocket.