Adjustable locator for clamshell lathe
AssigneeDonato L. Ricci
InventorsBrent Place, Donato L. Ricci
Life of this patent
Estimating the term…
Abstract
Disclosed is an adjustable locator for a machining lathe for machining a pipe or similar work piece. The locator includes a locator pad having a main body and a shoulder which is inserted into a socket in the stationary member of the machining lathe. The locator pad also includes an extension plate which can be both axially displaced or adjusted relative to the main body and shoulder to thereby position the clamshell lathe relative to the workpiece.
Claims11
In combination with a clamshell lathe, a device for centering and aligning the clamshell lathe with a workpiece to be machined, said device comprising:
- a) a body member adapted to be positioned in a pocket formed in a stationary member of a clamshell lathe and at least partially extending outward from an inner diameter of the stationary member;
- b) a set screw rotatably coupled to the body member and having external threads for cooperating with a threaded bore in the stationary member leading to the pocket whereby rotation of the set screw displaces the body member relative to said pocket;
- c) an extension plate slidingly coupled to the base portion of the body member, the extension plate having a threaded nut affixed thereto;
- and
- d) a rotatable adjustment screw operatively coupled between the body member and the threaded nut for axially translating the body member relative to the extension plate.
A clamshell lathe comprising:
- a) at least two arcuate segments that connect together to form an annular assembly for encircling a work piece;
- b) the annular assembly including a stationary ring and a rotatable ring supported by bearings affixed to the stationary ring, wherein the rotatable ring includes a spur gear on an outer peripheral surface of the rotatable ring and is journaled for rotation to the stationary ring for rotation about the work piece;
- c) a motor disposed on the stationary assembly and including a drive gear designed to mesh with the spur gear;
- d) a tool block supporting a cutting tool mounted to the rotatable ring wherein the cutting tool is advanced in a radial direction against the work piece upon each orbit of the rotatable ring about the work piece;
- and
- e) a plurality of adjustable locators and fixed locators for centering and aligning the clamshell lathe with the work piece wherein the adjustable locators and fixed locators are positioned in pockets formed in an inner diameter of the stationary ring.
Dependencies are inferred from the claim text.