PV was looking for a chuck design which is far superior than the Scroll Type. Although Reishauer and Forkardt manual chucks were available by import at that time their design were different and manufacturing them were difficult as it involves special machines which cannot be used for any other operation except for making components for these chucks.
Berg chuck with worm
and worm wheel design
Through Voltas PV imported Berg Chuck from Germany. On a
study of its design he found the chuck is unique because of its worm and worm
wheel design and steep rise and fall of cam. This design has high mechanical
advantage for machining castings and forgings. In those days castings and
forgings were so uneven on outer surface during machining intermittent cuts
will emerge. To deal with such machining parameters high gripping force chucks
are the only answer.
Voltas were representing Gildemeister Germany who are
manufacturers of Multi Spindle Chuck and Bar Autos. Berg Germany were
associated with Gildemeister for work holding. In 1963 GMT signed agreement
with Berg for the manufacture of Manual Chucks…the rest is history
No comments:
Post a Comment
Note: Only a member of this blog may post a comment.