| 摘要 |
<p>A snap rotary table carries thereon rims for abrading machining at the welding zone, which are subsequently moved to positions where the abrading tools, such as grinding wheel and abrasive bands, are operative. The rim supporting means comprise two cantilever facing spaced apart lower bearings and an upper clamping device. Thus, the zone to be machined is exposed on all sides and the abrading tools located at the various operative positions are allowed to machine the entire zone.</p> |
