AUXILIARY DEVICE FOR CUTTING CAMSHAFT HOLE

PURPOSE:To provide an auxiliary device for cutting a camshaft hole for automating a cutting process of a camshaft hole and for raising productivity. CONSTITUTION:An auxiliary device for cutting a camshaft hole comprises a pallet 30 on which a cylinder head is placed in positioning, a rocker arm 42 which is mounted swingably on the pallet 10, and a driving mechanism 36 which drives the rocker arm 42 in rocking and cutting jig plates 47, each of which has a pressure face which is detachably attached to the rocker arm, and when the rocker arm is swung toward a cylinder head placed on the pallet 30, placed on the upper surface of the cam holder, integrally fixed to the cam holder and the cylinder head and can come into contact with at least two points of the upper face of the cam holder in a position apart from the upper part of a rocker arm shaft hole.