Deburring tool
A deburring tool includes: a body having a cylinder bore; an anti-rotation body protruding toward inside of the cylinder bore; a cylindrical slide shaft reciprocable inside the cylinder bore, and an elastic body urges the slide shaft toward a cutting depth direction. The slide shaft includes a guide groove having a displacement width for the slide shaft to axially displaceable with respect to the anti-rotation body, and the guide groove moves the slide shaft with respect to the body in an opposite direction to the cutting depth direction as the guide groove receives cutting resistance.
1 . A deburring tool comprising:
a body having a cylinder bore;
an anti-rotation body protruding toward inside of the cylinder bore;
a cylindrical slide shaft to which a tip tool is attachable, the slide shaft configured to reciprocate inside the cylinder bore in a rotatable manner with respect to the body, the slide shaft including,
a guide groove located on an outer cylindrical surface to receive the anti-rotation body, the guide groove having a displacement width for the slide shaft to be axially displaceable with respect to the anti-rotation body, the guide groove configured to move the slide shaft with respect to the body in an opposite direction to a cutting depth direction of the tip tool as the guide groove receives cutting resistance in a rotational direction, the displacement width being an amount that the slide shaft is movable axially when a rotational position of the slide shaft with respect to the body does not change; and
an elastic body configured to urge the slide shaft toward the cutting depth direction.
2 . The deburring tool according to claim 1 , wherein
the body has an anti-rotation hole,
the deburring tool further comprises:
a trigger disposed around the body to reciprocate between a machining position and a detaching detachable position, the trigger including,
a holding surface covering the anti-rotation hole to protrude the anti-rotation body toward the guide groove when the trigger is at the machining position, and
a relief portion configured to receive the anti-rotation body when the trigger is at the detachable position.
3 . The deburring tool according to claim 1 , further comprising:
a cutting edge facing toward the cutting depth direction.
4 . The deburring tool according to claim 3 , wherein
the body has an anti-rotation hole,
the deburring tool further comprises:
a trigger disposed around the body to reciprocate between a machining position and a detaching detachable position, the trigger including,
a holding surface covering the anti-rotation hole to protrude the anti-rotation body toward the guide groove when the trigger is at the machining position, and
a relief portion configured to receive the anti-rotation body when the trigger is at the detachable position.
5 . The deburring tool according to claim 1 , wherein
the anti-rotation body is a ball.
6 . The deburring tool according to claim 5 , further comprising:
a cutting edge facing toward the cutting depth direction.
7 . The deburring tool according to claim 5 , wherein
the body has an anti-rotation hole,
the deburring tool further comprises:
a trigger disposed around the body to reciprocate between a machining position and a detaching detachable position, the trigger including,
a holding surface covering the anti-rotation hole to protrude the anti-rotation body toward the guide groove when the trigger is at the machining position, and
a relief portion configured to receive the anti-rotation body when the trigger is at the detachable position.
8 . The deburring tool according to claim 1 , wherein
the guide groove has a displacement amount proportional to an angular displacement at an end portion opposite to the cutting depth direction.
9 . The deburring tool according to claim 8 , wherein
the anti-rotation body is a ball.
10 . The deburring tool according to claim 8 , further comprising:
a cutting edge facing toward the cutting depth direction.
11 . The deburring tool according to claim 8 , wherein
the body has an anti-rotation hole,
the deburring tool further comprises:
a trigger disposed around the body to reciprocate between a machining position and a detaching detachable position, the trigger including,
a holding surface covering the anti-rotation hole to protrude the anti-rotation body toward the guide groove when the trigger is at the machining position, and
a relief portion configured to receive the anti-rotation body when the trigger is at the detachable position.
12 . The deburring tool according to claim 1 , wherein
the guide groove has a spiral shape, and
the displacement width is substantially constant along an entire length of the guide groove.
13 . The deburring tool according to claim 12 , wherein
the guide groove has a displacement amount proportional to an angular displacement at an end portion opposite to the cutting depth direction.
14 . The deburring tool according to claim 12 , wherein
the anti-rotation body is a ball.
15 . The deburring tool according to claim 12 , further comprising:
a cutting edge facing toward the cutting depth direction.
16 . The deburring tool according to claim 12 , wherein
the body has an anti-rotation hole,
the deburring tool further comprises:
a trigger disposed around the body to reciprocate between a machining position and a detaching detachable position, the trigger including,
a holding surface covering the anti-rotation hole to protrude the anti-rotation body toward the guide groove when the trigger is at the machining position, and
a relief portion configured to receive the anti-rotation body when the trigger is at the detachable position.