Method for the designing of tools

• US 20030167097A1
• Filed: 04/21/2003
• Published: 09/04/2003
• Est. Priority Date: 05/11/2000
• Status: Active Grant

• Current Assignee: AutoForm Engineering GmbH
• Original Assignee: AutoForm Engineering GmbH
• Inventors: Kubli, Waldemar, Hillmann, Matthias
• Granted Patent: US 7,894,929 B2
• Time in Patent Office: Days
• US Class Current: 700/98
• CPC Class Codes: G05B 19/4099 Surface or curve machining, making 3D objects, e.g. desktop manufacturing
• CPC Class Codes: G05B 2219/35533 Use, input 2-D data, sectional profile to machine 3-D surface
• CPC Class Codes: G05B 2219/49007 Making, forming 3-D object, model, surface
• CPC Class Codes: Y02P 90/02 Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Abstract

The invention concerns a method for the creation of addendums (4) of tools for sheet metal formed parts (2). In the case of this method, fill surfaces (7) for the smoothing of irregular zones of a component edge (3) are generated. Initial directions (31) of sectional profiles (10) are determined in such a manner, that sectional profiles (10) at a distance from one another are arranged along a component (3, 8) with utilization of these initial directions (31) and that an addendum (4) is creatable by the connection of these sectional profiles (10).

Claims

1. Method for the creation of addendums (4) of tools for sheet metal formed parts (2) characterized in that initial directions (31) of sectional profiles (10) are determined, sectional profiles (10) at a distance from one another are arranged along a component (3, 8) with utilization of these initial directions (31) and that an addendum (4) is created by connecting the sectional profiles (10).

2. Method in accordance with claim 1, characterized in that fill surfaces (7) for smoothing of an irregular component edge (3) are generated.

3. Method in accordance with one of the preceding claims, characterized in that the sectional profiles (10) do not run within a plane.

4. Method in accordance with one of the preceding claims, characterized in that the sectional profiles (10) are parameterised and of a single type of geometry.

5. Method in accordance with one of the preceding claims, characterized in that the initial direction (31) of a sectional profile is determined at certain points (25) by minimizing a quality criterion.

6. Method in accordance with one of the preceding claims, characterized in that between the sectional profiles (10) at least one further intermediate profile (10) is generated.

7. Method in accordance with claim 6, characterized in that the at least one intermediate profile (10) is interpolated indirectly from at least one profile parameter.

8. Method in accordance with one of the preceding claims, characterized in that characteristic lines (11) are generated by the connection of characteristic points of a sectional profile (10) or as a curve of a parameter value in a diagram.

9. Method in accordance with claim 8, characterized in that the sectional profiles (10) are changeable with the utilization of the characteristic lines (11).

10. Method for the simulation of the behaviour of tools for sheet metal formed parts (2), characterized in that it contains the process steps in accordance with one of the previous claims.

11. Method in accordance with claim 10, characterised in that at least one parameter of the simulation is coupled with the creation of addendums (4) of tools for sheet metal formed parts (2).

12. Method for the generation of surface data for machining of a tool, characterized in that it contains the process steps in accordance with one of the previous claims.

13. Computer program containing the steps of the method in accordance with one of the previous claims.

14. A computer readable medium containing a program, whereby this program is suitable for making a computer execute the steps of the method in accordance with claim 1.