| 摘要 |
A forming system includes first and second tools, moving assemblies, and a control unit. The moving assemblies move the first tool and the second tool relative to the sheet. The control unit is configured to control movement of the first tool and the second tool by the one or more moving assemblies by moving at least one of the first tool or the second tool in a first deformation direction to deform the sheet, then moving the first and second tools laterally relative to the sheet to a subsequent location while engaging the sheet, then moving at least one of the first tool or the second tool in the first deformation direction or an opposite second deformation direction to deform the sheet, and then continue moving the first and second tools to deform the sheet in order to create a three-dimensional component from the sheet. |
| 主权项 |
1. A system comprising:
a first tool configured to be disposed on a first side of a deformable sheet; a second tool configured to be disposed on an opposite, second side of the sheet; one or more moving assemblies configured to move the first tool and the second tool relative to the sheet; a control unit configured to control movement of the first tool and the second tool by the one or more moving assemblies, wherein the control unit is configured to move at least one of the first tool or the second tool in a first deformation direction to deform the sheet, then move the first and second tools laterally relative to the sheet to a subsequent location while engaging the sheet, then move at least one of the first tool or the second tool in the first deformation direction or an opposite second deformation direction to deform the sheet, and to continue moving the first and second tools to deform the sheet in order to create a three-dimensional component from the sheet; an input module configured to obtain a three-dimensional model of a component to be formed from a deformable sheet by first and second tools that engage corresponding first and second opposite sides of the sheet and that move relative to the sheet to deform the sheet, the three-dimensional model including plural three-dimensional features that protrude from at least one of the first side or second side of the sheet; an equalization module configured to an incremental depth at which the at least one of the first and second tools move toward or away from the sheet to form the features in the sheet, the incremental depth based on a number of curves formed by intersections of the model with a set of planes oriented parallel to the sheet; a sorting module configured to associate at least a first set of the curves formed by the intersections of the model with the planes with a first feature of the features in the model and a second set of the curves formed by the intersections of the model with the planes with a different, second feature of the features in the model; a point generation module configured to determine one or more toolpaths that the first and second tools follow in order to deform the sheet into the component, the point generation module configured to determine segments of the model that are disposed between neighboring planes in the set of planes and to determine one or more helical curves extending along the segments from an internal area of the sheet toward outer boundaries of the sheet; and a path writing module configured to identify contact points along the one or more toolpaths and directions in which the first and second tools are to move along the one or more toolpaths, the contact points being locations where the first and second tools are to engage and deform the sheet to form the component from the sheet based on the model, wherein the path writing module determines the contact points and the directions such that the first and second tools move along the one or more toolpaths in an in-to-out direction laterally along the sheet. |
