Patent ID: 9410219
Filing Date: 2016-08-09
CPC Classification: B23K,C21D

Claim Text:
1. A crankshaft heat treatment device, comprising: a base frame; a jig frame in which a crankshaft is rotatably supported and disposed to move in a horizontal direction and in a vertical direction with respect to the base frame; a laser unit disposed in a predetermined position and irradiating a laser beam to a pin portion and a journal portion of the crankshaft so as to treat the pin portion and the journal portion, respectively, with heat; a rotation unit disposed on the jig frame to rotate the crankshaft; a first moving unit disposed on the base frame to move the jig frame substantially perpendicular to a central axis of the crankshaft in a horizontal direction; and a second moving unit disposed on the first moving unit to move the jig frame substantially perpendicular to a central axis of the crankshaft in an up and down direction.