| 摘要 |
<PICT:1018721/C6-C7/1> Apparatus for profiling e.g. by electrolytic erosion, a workpiece 30 to the shape of a flat template 12 comprises a copying mechanism 1, 2 interconnecting the template and workpiece and mounted on a fixed centre 3, the template being rotated against a fixed feeler 13 by means of a friction disc 21 on a fixed axis 22. The template consists of a strip 12 cemented. welded or screwed to the underside of a plate 11 located by screws 10 within a frame 8 movable on ball members 20, Fig. 2 (not shown) and articulated at 4, 6 respectively to the copying linkage 1, 2. The top surface of template plate 11 is engaged by the friction disc 21 carried by an arm 27 and driven through belt 25 by a motor 26. Disc 21 may be magnetized or carry an electromagnet to assist the friction drive and the coefficient of friction may be varied by the use of a resin or a lubricant. Workpiece 30 is mounted within a frame 9 movable on ball members 37, Fig. 2 (not shown), and articulated at 5, 7 to the linkage 1, 2. A fixed shaping tool 32 carried by an arm 33 may be an erosive tool electrode which may be a wire. The workpiece is then located in a bath 35 filled with electrolyte. Electrode 32 may be inclined to the surface of the workpiece for forming an inclined surface thereon. |
