Patent ID: 8733221

Claim:
A groove machining apparatus for an insulating spacer, comprising: a cutting blade that is removably fixed to a rotation shaft rotatable around a horizontal axis of a rotation shaft device and that is moveable in a right-left direction and in an up-down direction via an X-axis moving device and a Y-axis moving device, respectively; a rotary table that is rotatable around a vertical axis of a turning device, the rotary table having a loading/unloading position and a working position 180 degrees apart from the loading/unloading position; a cassette having an elongated recess extending in the right and left direction when under the cutting blade, wherein a plurality of insulating spacers may be disposed in the recess; mounts disposed underneath the cassette, the mounts being fixed in the loading/unloading position and opposing an entrance though which the cassette can be loaded/unloaded and in the working position facing the cutting blade; positioning devices that are respectively located on each side of the cassette in the vicinity of the mounts to position and fix each cassette to the mounts; and a clamping device disposed on the top of the cassette in the working position presses opposing edges in a front-back direction of a plurality of insulating spaces aligned on the cassette, wherein the cassette disposed in the positioning device in the loading/unloading position is fixed to the mount and rotated 180 degrees to the working position facing the cutting blade, the opposing edges in the front-back direction of the plurality of insulating spacers aligned on the cassette are pressed and fixed, and the cutting blade rotating at a set level is moved in the right-left direction, so that grooves of a set width and a set depth are sequentially formed in the plurality of insulating spacers.