PURPOSE:To provide easy caulking operation without requiring skillfulness by fitting precious stones in a plurality of holes on a base, and introducing the slide surface at the tip of a slider between rollers of the two arms of a caulking mechanism. CONSTITUTION:A ring to be processed (a) is fitted in a taper bar 32 of a retaining mechanism 2, and a work holding screw 35 is driven to hold and fix the ring. Precious stones (b) are fitted in a plurality of holes in a base simultaneously, and the retaining mechanism 2 is moved horizontally so that the tips 40 of a pair of arms 44 of caulking mechanism 4 are facing in the position easy to work the specified hole (c), and the caulking mechanism 4 is approached the ring (a) by a rotating mechanism and a longitudinal motion mechanism. Then an actuator screw 54 is operated to sink a slider 49, and the slide surface 47 at its tip is intruded between rollers 43 of the two arms 44, and the edge of the ring (a) is caulked with the tip 40. Thus caulking operation can be done easily without requiring skillfulness.
展开▼
