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US 7,607,872 B2Granted
Method for machining a molded part and machine tool therefor
AssigneeBuckhorn Rubber Products, Inc.
InventorsEdward W. Hulse, Kevin W. Pennewell, James W. Dorsey, Gregg A. Teel
Life of this patent
Estimating the term…
Abstract
A machine tool for machining a molded part, such as an elastomeric coated valve component includes a rotatable cutting tool having a shape corresponding to the shape of a cavity of the valve component. A method of machining the molded part is also disclosed.
Claims14
A machine tool for removing flashing from interior surfaces of a cavity in a valve component, said tool comprising
- a platform,
- a positioning fixture on a top surface of the platform for positioning said valve component on the platform, the positioning fixture including a protrusion receivable in a recess in said valve component so as to position the valve component in a position in which said interior surfaces of the cavity in the valve component are spaced laterally outward from an edge of the platform,
- a clamp on the platform movable from a retracted position to an engaging position for clamping the valve component against the fixture,
- a cutting tool having a rotatable cutting head spaced laterally outward from said edge of the platform a predetermined distance from said positioning fixture for cutting the flashing from said interior surfaces of said cavity in said valve component,
- said platform being movable downward from an upper position to bring said cutting head into cutting engagement with said valve component to remove said flashing from the valve component and being movable back to said upper position after said flashing has been removed.
2 more elements
A machine tool for machining flashing from an elastomeric coated valve component, said tool comprising
- a platform movable up and down,
- an upper surface with a platform opening for receiving said platform,
- a cutout in the upper surface contiguous with said platform opening for receiving a portion of said valve component to be machined,
- a positioning fixture on the platform for positioning said valve component on the platform,
- a clamp on the platform movable from a retracted position to an engaging position for clamping the valve component against the fixture, and
- a cutting tool having a rotatable cutting head disposed below said cutout,
- said platform being movable downward from an upper position to bring said cutting head into cutting engagement with said valve component to remove said flashing from the valve component and being movable back to said upper position after said flashing has been removed, the cutting head of the cutting tool being T-shaped for cutting flashing from a T-shaped cavity in the valve component.
4 more elements
Dependencies are inferred from the claim text.