| 摘要 |
<p>An engraving device for continuous ornamentally machining chains (27), bracelets or the like and which is connectable to the spindle of a stone- cutting machine comprises a rigid framework (2) and a displaceable framework (22) slidably mounted thereon so as to be oscillatable, a ring nut (5) attachable to the fixed housing and connectable to the spindle of the machine, and a swivel type milling cylinder (4) mounted on a shaft passing through the ring nut. The milling cylinder (4) carries an engraving tool. The ring nut (5) and milling cylinder are rotatable. The engraving tool contacts the workpiece (27) and is controlled by means of a tracer point (31) fitted to the rigid framework (2) of the machine cooperating with a cam (28) attached to the displaceable framework (22), the displacement of the framework (22) on the rigid framework being effected by means of lateral slides. <IMAGE></p> |
