Tool holder for clamping an insert holder

A method of clamping a blade shaped insert holder in a tool holder, the tool holder comprising:

• a main block having a longitudinal side surface with a longitudinal groove with opposing first and second walls;
• two wedge shaped clamping members, supported by the second wall of the longitudinal groove;
• and
• a single adjustment member interfacing with each of the two clamping members,
• the method comprising the steps of:
• mounting the insert holder in the longitudinal groove to interface with the two clamping members;
• and
• rotating the adjustment member to cause movement of each clamping member up a respective inclined non-parallel planar ramping surface of the second wall of the longitudinal groove, until a distance between the two clamping members and the first wall of the longitudinal groove is decreased to a point wherein a clamping force is applied between the insert holder and the first wall of the longitudinal groove.

A tool holder comprising:

• a main block having a first wall spaced apart from a second wall, the first wall facing in a direction of the second wall, the second wall comprising first and second ramping surfaces which extend away from each other and towards the first wall;
• left and right clamping members supported by the first and second ramping surfaces, respectively, the left and right clamping members having respective first and second clamping surfaces which face in a direction of the first wall;
• and
• an adjustment member operatively connected to both clamping members;
• wherein:
• the left and right clamping members are configured to travel along the first and second ramping surfaces and thereby adjust a distance between their clamping surfaces and the first wall, in response to operation of the adjustment member.