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US 6,139,412 AGranted
Fixture for manufacturing precisely shaped parts
AssigneeUnited Technologies Corporation
InventorJames P. Dwyer
Life of this patent
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AssigneeUnited Technologies Corporation
InventorJames P. Dwyer
Estimating the term…
A fixture for manufacturing a precisely shaped part, such as a turbine blade, securely holds a blank for subsequent machining. A blank for use with the fixture generally comprises a tip, a root region longitudinally spaced from the tip, and a midspan region extending therebetween. The blank is further characterized by a sacrificial region extending substantially longitudinally from the root region, a stacking axis and a root centerline from which critical dimensions of the blade are referenced, and a plurality of locators. The first locator, a bore, being disposed at the tip on the stacking axis. The second locator, a notch, being disposed within the sacrificial region aligned with the stacking axis. The third locator, a notch, being disposed within the sacrificial region is characterized by a corner, which is parallel to the root centerline. The fixture includes a base having end walls being spaced apart to accommodate the blank therebetween. One end wall supports a clamping mechanism, and the other end wall supports an abutment means. The locators are shaped to mate with the clamping mechanism and the abutment means, respectively. Upon placing the blank between the end walls and actuating the clamping mechanism, the clamping mechanism mates with the first locator, and forces the second locator into contact with the abutment means. Once the blank is clamped into the fixture, details, such as dove tails in the root region, can be accurately machined into the blank forming a precisely shaped part.
A fixture for holding a blank, the blank having a first locator and a second locator, the fixture including a base having end walls being spaced apart to accommodate the blank therebetween, the fixture being characterized by:
A fixture for holding a blank, the blank having a first locator and a second locator, the fixture including a base having end walls being spaced apart to accommodate the blank therebetween, the fixture being characterized by:
A fixture for holding a blank, the blank having a first locator, a second locator, and a third locator, the fixture including a base having end walls being spaced apart to accommodate the blank therebetween, the fixture being characterized by:
A fixture for holding a blank, the blank having a first locator, a second locator, and a third locator, the fixture including a base having end walls being spaced apart to accommodate the blank therebetween, the fixture being characterized by:
A fixture for holding a blank, the blank having a first locator and a second locator, the fixture including a base having end walls being spaced apart to accommodate the blank therebetween, the fixture being characterized by:
A fixture for holding a blank, the blank having a first locator and a second locator, the fixture including a base having end walls being spaced apart to accommodate the blank therebetween, the fixture being characterized by:
Dependencies are inferred from the claim text.