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US 10,488,847 B2Granted
Profit milling
AssigneeD.P. Technology Corp.
InventorJianping Song
Life of this patent
Estimating the term…
Abstract
Methods and devices for computer-assisted milling of a pocket region of a workpiece by computing a blend arc radius, where the blend arc radius is based on a maximal variation of a Tool Engagement Angle (TEA), and smoothing at least one offset, where the smoothing is based on the computed blend arc radius and/or a prior computed blend arc radius with a stepover.
Claims19
A method comprising:
- smoothing at least one offset, wherein the smoothing is based on at least one of:
- a computed blend arc radius and a prior computed blend arc radius with a stepover;
- determining trochoidal areas based on the smoothed at least one offset being a valid narrow area, wherein the valid narrow area is formed based on at least two or more blend arcs and partial offsets between blend arcs;
- determining a grouping of the smoothed at least one offset;
- sorting the determined grouping of the smoothed at least one offset based on a set of attributes associated with the offset, wherein the set of attributes comprises an adjacent relationship of a set of offsets, wherein the adjacent relationship of offsets is at least one of:
- a relationship between two adjacent closed offsets, a relationship between two adjacent open offsets, and a relationship between two adjacent closed offsets and open offsets, and wherein determining a grouping of the smoothed at least one offset is based on grouping separately in different groups the open offsets and the closed offsets;
- and
- generating a complete tool path of a pocket based on connecting the sorted smoothed at least one offset via trochoidal movements inside the determined trochoidal areas.
5 more elements
A device comprising:
- a processor having addressable memory, the processor configured to:
- smooth at least one offset, wherein the smoothing is based on at least one of:
- a computed blend arc radius and a prior computed blend arc radius with a stepover;
- determine trochoidal areas based on the smoothed at least one offset being a valid narrow area, wherein the valid narrow area is formed based on at least two or more blend arcs and partial offsets between blend arcs;
- determine a grouping of the smoothed at least one offset;
- sort the determined grouping of the smoothed at least one offset based on a set of attributes associated with the offset, wherein the set of attributes comprises an adjacent relationship of a set of offsets, wherein the adjacent relationship of offsets is at least one of:
- a relationship between two adjacent closed offsets, a relationship between two adjacent open offsets, and a relationship between two adjacent closed offsets and open offsets, and wherein determining a grouping of the smoothed at least one offset is based on grouping separately in different groups the open offsets and the closed offsets;
- and
- generate a complete tool path of a pocket based on connecting the sorted smoothed at least one offset via trochoidal movements inside the determined trochoidal areas.
6 more elements
A device comprising:
- a processor having addressable memory, the processor configured to:
- smooth at least one offset, wherein the smoothing is based on at least one of:
- the computed blend arc radius and a prior computed blend arc radius with a stepover;
- determine trochoidal areas based on the smoothed at least one offset being a valid narrow area, wherein the valid narrow area is formed based on at least two or more blend arcs and partial offsets between blend arcs;
- determine a grouping of the smoothed at least one offset, wherein determining a grouping of the smoothed at least one offset is further based on grouping for each open group comprising only open offsets, starting from the un-grouped offset farthest from boundaries of a pocket, followed by a set of adjacent offset nearest to the boundaries of the pocket;
- sort the determined grouping of the smoothed at least one offset based on a set of attributes associated with the offset, wherein the set of attributes comprises an adjacent relationship of a set of offsets;
- generate a complete tool path of the pocket based on connecting the sorted smoothed at least one offset via trochoidal movements inside the determined trochoidal areas;
- and
- mill a pocket region of a workpiece based on the generated complete tool path of a pocket.
6 more elements
Dependencies are inferred from the claim text.