High-frequency induction hardening apparatus for metal objects

摘要

A high-frequency induction hardening apparatus used for metal objects, including a heating coil holder (4) carrying a heating coil (40) for hardening a metal object (2), an eccentric rotor assemble housing a cam mechanism for allowing the heating coil to eccentrically rotate through the heating coil holder (4); and a pair of supporters (11), (12) for keeping the heating coil holder (4) in a desired position, the supporters (11), (12) limiting the movement of the heating coil holder (4) to a plane intersecting the axis (21) of the cam carried in an eccentric rotor mount (13).

主权项

1. A high-frequency induction hardening apparatus for metal objects, comprising:
a plurality of heating coil holders, each for holding a heating coil for hardening a metal object, and a plurality of eccentric rotor mounts each having one of the heating coils associated therewith, wherein the heating coils are held so as to be eccentrically rotative through a cam mechanism that moves around an axis to move the eccentric rotor mounts and thereby the associated heating coil holders; and first and second supporters limiting movement of each heating coil to a plane intersecting the axis of the cam mechanism and keeping each heating coil in a desired position, the first supporters each guiding movement of one of the eccentric rotor mounts and an associated heating coil holder along a first line, the second supporters guiding movement of the first supporters along a second line that is angled with respect to the first line, the hardening apparatus comprising separate pairs of guides and rails configured to cooperate with each other to guide movement of: a) the eccentric rotor mounts and thereby the associated heating coil holders in the first line; and b) the first supporters together with the eccentric rotor mounts and thereby the associated heating coil holders along the second line.