Screw machine cut-off tool
AssigneeThe Raymond Lee Organization, Inc.
InventorCharles P. Hynes
Life of this patent
Estimating the term…
Abstract
A parting tool for cutting off stock lengths on a lathe or screw machine which supports the cutting blade in tension, thus enabling the use of a narrow cut-off blade that can cut larger diameter stock than conventional cut-off tools. The cutting blade is mounted in slots of the two arms of a Y-shaped holder, with the cutting edge located between the holder arms. The blade is anchored to the holder by a support pin that engages an open slot in the rear blade edge, and by cammed pins in the holder arms, locking in the front edge of the blade.
Claims2
A screw machine cut-off tool in which the cutting point of the tool blade is supported in tension, comprising
- a removable tool blade, formed with two arm sections joined to a stiffener section,
- a blade holder formed with a shank joined to two separated arm members, with fastening means to frictionally mount each arm member of the blade holder to an arm section of the blade,
- said tool blade fitted with a cutting point located between the two arm sections of the blade with the stiffener section extending from the rear portion of the blade opposite the cutting point on the forward end of the blade,
- said blade holder and said blade fitted with adjustable mating means to positively engage a first arm member of the blade holder with a first arm section of the blade, with the second arm member of the blade holder being frictionally engaged to the second arm section of the blade,
- said first arm section of the blade being oriented with respect to the cutting point of the blade in the same direction as the relative direction the cutting point moves toward work to be cut so that the engaged positive said mating means applies a tension force to said first arm section of the blade in use,
- said blade holder fitted with bearing means to slidably support the end of the stiffener section of the blade.
Dependencies are inferred from the claim text.