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Details for Patent: 6,460,436

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Details for Patent: 6,460,436

Title: Reversible micromachining locator
Abstract:A locator with a part support is used to hold a part onto the kinematic mount of a tooling machine so that the part can be held in or replaced in exactly the same position relative to the cutting tool for machining different surfaces of the part or for performing different machining operations on the same or different surfaces of the part. The locator has disposed therein a plurality of steel balls placed at equidistant positions around the planar surface of the locator and the kinematic mount has a plurality of magnets which alternate with grooves which accommodate the portions of the steel balls projecting from the locator. The part support holds the part to be machined securely in place in the locator. The locator can be easily detached from the kinematic mount, turned over, and replaced onto the same kinematic mount or another kinematic mount on another tooling machine without removing the part to be machined from the locator so that there is no need to touch or reposition the part within the locator, thereby assuring exact replication of the position of the part in relation to the cutting tool on the tooling machine for each machining operation on the part.
Inventor(s): Salzer; Leander J. (Los Almos, NM), Foreman; Larry R. (late of Los Alamos, NM)
Assignee: The Regents of the University of California (Los Alamos, NM)
Filing Date:Nov 20, 2000
Application Number:09/717,805
Claims:1. A method for producing a machined part from a blank, comprising the steps of: (a) securing a blank to a locator, the blank comprising a first side and a second side, the locator comprising a first side and a second side that opposes the first side, the first side and second side of the locator being configured to mate with a mating surface of a kinematic mount of a tooling machine; (b) attaching the first side of the locator to the mating surface of the kinematic mount of a tooling machine so that a machining operation may be performed upon the second side of the blank; (c) performing a machining operation upon the second side of the blank; (d) detaching the locator from the kinematic mount; (e) attaching the second side of the locator to the mating surface of the kinematic mount of the tooling machine, or to the mating surface of a kinematic mount of another tooling machine, so that a machining operation may be performed upon the first side of the blank; and (f) performing a machining operation upon the first side of the blank, thereby producing a machined part.

2. The method recited in claim 1, wherein the machined part is a beryllium hemishell.

3. The method recited in claim 1, wherein the locator comprises a material to which magnets are attracted and the kinematic mount comprises a magnet.

4. The method recited in claim 1 wherein said locator has steel balls partially embedded in the surface of said locator and wherein said kinematic mount has grooves in the surface of said kinematic mount; and further, wherein said steel balls are sized and positioned to fit into said grooves.

5. The method recited in claim 4, wherein the step of securing the blank to the locator comprises securing the blank with a retaining ring blank support.

6. The method recited in claim 1 wherein said machined part is an optical lens.

7. A method for producing a two machined part from two blanks, comprising the steps of: (a) securing a first blank to a first locator, the first locator comprising a first side and a second side that opposes the first side, the first side and second side of the locator being configured to mate with a mating surface of a kinematic mount of a tooling machine; (b) attaching the first side of the first locator to the mating surface of the kinematic mount of a tooling machine; (c) securing a second blank to a second locator, the second locator comprising a first side and a second side that opposes the first side, the first side and second side of the second locator being configured to mate with a mating surface of a kinematic mount of a tooling machine; (d) attaching the first side of the first locator to the mating surface of the kinematic mount of a tooling machine; (e) attaching the second side of the second locator to the second side of the first locator; (f) performing a machining operation upon the second blank; (g) detaching the first locator from the kinematic mount; (h) attaching the first side of the second locator to the mating surface of the kinematic mount of the tooling machine, or to the mating surface of a kinematic mount of another tooling machine; and (i) performing a machining operation upon the first blank, thereby producing a first machined part from the first blank and a second machined part from the second blank.

8. The method recited in claim 7 further comprising: after removing said second locator with said second machined part therein from said first locator and said first locator with said first machined part therein from said kinematic mount, reversing and reattaching said first locator with said first machined part therein to said kinematic mount without removing said first machined part from said first locator and reversing and reattaching said second locator with said second machined part therein to said first locator without removing said second machined part from said second locator; and performing a second machining operation upon each of said first and said second machined parts.

9. The method recited in claim 7 wherein said first blank is beryllium and said machining operation produces a first machined part and a second machined part which has therein the inner surface of a hemishell.

10. The method recited in claim 8 wherein said second blank is beryllium and said second machining operation produces a second machined part which has therein the outer surface of a hemishell.

11. The method recited in claim 7 wherein said first blank is beryllium and said machining operation produces a first machined part and a second machined part which has therein the outer surface of a hemishell.

12. The method recited in claim 8 wherein said second blank is beryllium and said second machining operation produces a second machined part which has therein the inner surface of a hemishell.
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