Apparatus for heat-treating a V-type cylinder block by induction heating

摘要

In a heat-treatment apparatus for heat-treating a V-type cylinder block (W) by induction heating, the block (W) is fixedly mounted on a work table (11) and set at a reference position thereon. A plurality of induction heating coils (23) are disposed in each of opposite sides of a base frame (10) of the work table (11) through Z tables (21), Y tables (18) and X tables (13). These tables (13, 18, 21) enable the heating coils (23) to enter and exit from the corresponding cylinder bores (Wn) of the block (W) in a direction in parallel with a longitudinal direction of the cylinder bores (Wn). The Z table (21) moves back and forth in parallel with the longitudinal direction of the cylinder bores (wn). The Y table moves back and forth in a direction perpendicular to the rows of the cylinder bores (Wn). The X table (13) moves back and forth in parallel with the rows of cylinder bores (Wn).