Patent ID: 11858055
Assignee: ROLLS-ROYCE PLC
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A cutting electrode head for a handheld electrical discharge machining (EDM) device comprising:
a housing;
a cutting electrode supported in the housing, the cutting electrode configured to move from a retracted position to an extended position along an electrode axis (C) to cut a workpiece; and
an actuator supported in the housing and movable along a movement axis (E) which is at an angle to the electrode axis (C), the actuator configured to move the cutting electrode by way of a linear cam arrangement,
wherein movement of the actuator (60) along the movement axis (E) causes the cutting electrode to move between its retracted and extended positions, and
wherein the cutting electrode is resiliently biased, by a spring acting between the cutting electrode and the housing or a component fixed to the housing, to its retracted position.