Deburring tool and deburring method
A deburring tool includes: a case; a hollow sleeve that reciprocates inside the cylinder in a non-rotating manner; a drive gear disposed inside the sleeve, includes a first tooth, and rotates together with the case and the sleeve; a reciprocating shaft disposed inside the sleeve, including a driven gear disposed at a basal end portion of the sleeve and a basal end side of the drive gear, the driven gear including a second tooth, a tool holder disposed at a distal end portion of the sleeve, and slides inside the sleeve in a rotational and reciprocating direction, and a stem that fixes the driven gear and the tool holder, and penetrates the drive gear, a first spring that urges the sleeve toward distal end direction; and a second spring that urges the tool holder from the drive gear toward distal end direction.
1. A deburring tool, comprising:
a case including a shank and a cylinder;
a hollow sleeve configured to reciprocate inside the cylinder in a non-rotating manner;
a drive gear disposed inside the sleeve, the drive gear including a saw blade shaped first tooth at a basal end portion, the drive gear configured to rotate together with the case and the sleeve;
a reciprocating shaft to which a tip tool is mountable, the reciprocating shaft disposed inside the sleeve, the reciprocating shaft including
a driven gear disposed at a basal end portion of the sleeve and a basal end side of the drive gear, the driven gear including a second tooth at a distal end, the second tooth meshing with the first tooth,
a tool holder disposed at a distal end portion of the sleeve, the tool holder configured to slide inside the sleeve in a rotational direction and in a reciprocating direction, and
a stem configured to fix the driven gear and the tool holder, the stem penetrating the drive gear,
a first spring configured to urge the sleeve toward distal end direction; and
a second spring configured to urge the tool holder from the drive gear toward distal end direction.
2. The deburring tool according to claim 1 , wherein
the cylinder has a spring housing hole at basal end side, and
the first spring is inserted into the spring housing hole.
3. The deburring tool according to claim 2 , wherein
the second spring is arranged inside the sleeve between the drive gear and the tool holder.
4. The deburring tool according to claim 2 , wherein
the first tooth has a first sliding surface located toward a distal end direction as the first sliding surface moves in a rotation direction of the shank.
5. The deburring tool according to claim 2 , wherein
the sleeve includes a stopper for suppressing a moving length of the drive gear toward basal end, and
the moving length is smaller than a height of a blade of the drive gear.
6. The deburring tool according to claim 2 , wherein
the cylinder has a first ball holding hole on an inner surface, and
the sleeve has a first roller groove extending in the reciprocating direction on an outer peripheral surface of the sleeve, and
the deburring tool further comprising:
a first ball disposed in the first ball holding hole to roll in the first roller groove.
7. The deburring tool according to claim 1 , wherein
the second spring is arranged inside the sleeve between the drive gear and the tool holder.
8. The deburring tool according to claim 7 , wherein
the first tooth has a first sliding surface located toward a distal end direction as the first sliding surface moves in a rotation direction of the shank.
9. The deburring tool according to claim 7 , wherein
the sleeve includes a stopper for suppressing a moving length of the drive gear toward basal end, and
the moving length is smaller than a height of a blade of the drive gear.
10. The deburring tool according to claim 7 , wherein
the cylinder has a first ball holding hole on an inner surface, and
the sleeve has a first roller groove extending in the reciprocating direction on an outer peripheral surface of the sleeve, and
the deburring tool further comprising:
a first ball disposed in the first ball holding hole to roll in the first roller groove.
11. The deburring tool according to claim 1 , wherein
the first tooth has a first sliding surface located toward a distal end direction as the first sliding surface moves in a rotation direction of the shank.
12. The deburring tool according to claim 11 , wherein
the sleeve includes a stopper for suppressing a moving length of the drive gear toward basal end, and
the moving length is smaller than a height of a blade of the drive gear.
13. The deburring tool according to claim 11 , wherein
the cylinder has a first ball holding hole on an inner surface, and
the sleeve has a first roller groove extending in the reciprocating direction on an outer peripheral surface of the sleeve, and
the deburring tool further comprising:
a first ball disposed in the first ball holding hole to roll in the first roller groove.
14. The deburring tool according to claim 1 , wherein
the sleeve includes a stopper for suppressing a moving length of the drive gear toward basal end, and
the moving length is smaller than a height of a blade of the drive gear.
15. The deburring tool according to claim 14 , wherein
the cylinder has a first ball holding hole on an inner surface, and
the sleeve has a first roller groove extending in the reciprocating direction on an outer peripheral surface of the sleeve, and
the deburring tool further comprising:
a first ball disposed in the first ball holding hole to roll in the first roller groove.
16. The deburring tool according to claim 1 , wherein
the cylinder has a first ball holding hole on an inner surface, and
the sleeve has a first roller groove extending in the reciprocating direction on an outer peripheral surface of the sleeve, and
the deburring tool further comprising:
a first ball disposed in the first ball holding hole to roll in the first roller groove.
17. The deburring tool according to claim 1 , wherein
the sleeve has a second ball holding hole on an inner surface,
the tool holder has a second roller groove on an outer peripheral surface of the tool holder,
the deburring tool further comprising:
a second ball disposed in the second ball holding hole to roll in the second roller groove.
18. The deburring tool according to claim 1 , wherein
the second spring has an elastic force greater than the first spring.