US 11,919,090 B2
Weld bead cutting device
Miki Kimura, Nagoya (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Oct. 3, 2019, as Appl. No. 16/592,149.
Claims priority of application No. 2018-207058 (JP), filed on Nov. 2, 2018.
Prior Publication US 2020/0139447 A1, May 7, 2020
Int. Cl. B23B 1/00 (2006.01); B29C 65/00 (2006.01); B29K 307/04 (2006.01); B29K 663/00 (2006.01)
CPC B23B 1/00 (2013.01) [B29C 66/0326 (2013.01); B29C 66/7212 (2013.01); B23B 2215/72 (2013.01); B29K 2307/04 (2013.01); B29K 2663/00 (2013.01)] 2 Claims
OG exemplary drawing
 
1. A weld bead cutting device configured to cut a weld bead generated on an outer circumference of a welding portion, the weld bead being generated when end edges of two resin members are abutted on and welded to each other, each of the end edges having a ring shape on an open side, the weld bead cutting device comprising:
a rotation mechanism configured to rotate a workpiece formed as at least the two resin members are welded to each other, the workpiece being rotated around a rotation axis that extends along an abutting direction of the at least two resin members;
a cutting tool arranged on an outer peripheral side of the workpiece and configured to cut the weld bead;
at least two pressing rotors arranged on opposite sides of the cutting tool, the pressing rotors being configured to be pressed against an outer peripheral surface of the workpiece; and
a reciprocation unit configured to hold the cutting tool and the pressing rotors and reciprocate the cutting tool and the pressing rotors relative to the workpiece along a direction orthogonal to the rotation axis,
wherein the pressing rotors are arranged at four locations that surround a position where the cutting tool is arranged, and outer surfaces of the pressing rotors on a side facing the outer peripheral surface of the workpiece are positioned on a virtual plane extending in a same diretion as the rotation axis,
wherein, the at least two pressing rotors are arranged on opposite sides of the cutting tool, so that, in a side view, a height positin at which the cutting tool is located is lower than a height position of an upper side of the at least two pressing rotors and the height position at which the cutting tool is located is higher than a height position of a lower side of the at least two pressing rotors.