Cutting tool holder and method for using the same
A cutting tool holder for holding a cutting member, which is attached to a drive unit for driving the cutting member. A first elastic member is elastically deformable in a first direction. A second elastic member is elastically deformable in a second direction different from the first direction. An elastic connection member elastically connects the first and second elastic members. A first attachment member is disposed in the first elastic member to be connected to the drive unit. A second attachment member is disposed in the second elastic member to attach the cutting member.
1. A cutting tool holder, for holding a cutting member, which is attached to a drive unit for driving the cutting member, the cutting tool holder comprising:
a first elastic member elastically deformable in a first direction;
a second elastic member elastically deformable in a second direction different from the first direction;
an elastic connection member for elastically connecting the first and second elastic members;
a first attachment member disposed in the first elastic member and connected to the drive unit; and
a second attachment member, disposed in the second elastic member, for attaching the cutting member,
wherein a first highly rigid member, having higher rigidity than that of the first elastic member and the second elastic member, is disposed in parallel with the second elastic member,
wherein, when a deformation degree of the second elastic member in the second direction is at least a predetermined amount, the first elastic member is connected to the second attachment member through the first highly rigid member, and
wherein, when the deformation degree of the second elastic member in the second direction is less than the predetermined amount, the first elastic member is not connected to the second attachment member through the first highly rigid member,
wherein the first highly rigid member is fixed at a proximal end thereof to the elastic connection member, and a predetermined space is set between a distal end of the first highly rigid member and the second attachment member.
2. The cutting tool holder according to claim 1 , wherein the second direction is orthogonal to the first direction.
3. The cutting tool holder according to claim 1 , wherein a second highly rigid member, having higher rigidity than that of the first elastic member and the second elastic member, is disposed in parallel with the first elastic member, wherein, when a deformation degree of the first elastic member in the first direction is at least a predetermined amount, the first attachment member is operatively connected to the second elastic member through the second highly rigid member, and
wherein, when the deformation degree of the first elastic member in the first direction is less than the predetermined amount, the first attachment member is not connected to the second elastic member through the second highly rigid member.
4. The cutting tool holder according to claim 1 , wherein the first elastic member is formed in a ring shape.
5. The cutting tool holder according to claim 1 , wherein the second elastic member is formed in a ring shape.
6. The cutting tool holder according to claim 1 , wherein the first elastic member and the second elastic member are connected through the elastic connection member,
the elastic connection member is L-shaped in section by a first attachment section and a second attachment section, and
the first elastic member and the second elastic member are fixed to the first attachment section and the second attachment section, respectively.
7. The cutting tool holder according to claim 1 , wherein the first highly rigid member has an intrinsic frequency that does not resonate with a frequency of the first elastic member and does not resonate with a frequency of the second elastic member.
8. The cutting tool holder according to claim 1 , wherein the drive unit is a robot.