High frequency quenching machine tool exclusion method

①If the primary breakdown, it can be dealt with by the inter-turn short-circuit method.

②If there is a secondary fault, the secondary repair welding leak can be removed, and then painted with red paint. Example 7 The sensor and the workpiece collide. The fault occurs mostly in the mechanical system, especially the rotary heating and quenching mechanism.

Repair the positioning fixture or design a circuit to prevent the sensor from colliding with the workpiece, so that it has the following functions:

①Collision before heating, can not send excitation, and can not make the intermediate frequency generator generate voltage.

②Collision during heating, stop the excitation immediately and cut off the intermediate frequency voltage.