Formation of set-up families for a machining system with a machine tool
AssigneeSiemens Aktiengesellschaft
InventorsAlexander Pfaffinger, Christian Royer
Life of this patent
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Abstract
A machine tool having a tool magazine for tools, which the machine tool can hold one at a time in order to machine a workpiece is provided. A method for controlling the machine tool includes steps of detecting workpieces to be machined and grouping detected workpieces into set-up families in such a way that a set-up associated with the set-up family is sufficient for machining the workpieces belonging to the set-up family. The set-up includes tools, which can be simultaneously loaded in the tool magazine, and the set-up families are formed in such a way that the number of tools that must be loaded in order to machine the detected workpieces is minimized as far as possible.
Claims13
A method for the control of a machine tool with a tool magazine for tools, of which the machine tool can hold one at any time for machining a workpiece, wherein the method comprises the following steps:
- registering workpieces to be machined;
- grouping registered workpieces into set-up families in such a way that a set-up assigned to the set-up family is sufficient to machine the workpieces of the set-up family;
- wherein the set-up comprises tools which can be loaded simultaneously in the tool magazine;
- wherein the set-up families are formed in such a way that the number of tools that are to be loaded for machining the registered workpieces is minimized as far as possible.
- wherein
- a plurality of workpieces of the same type are grouped to form one order, and the set-up families are formed in such a way that the expression (M−E)*O is maximized as far as possible over all the workpieces of all the set-up families;
- wherein M is the number of tools that must be loaded exclusively for machining the workpiece;
- E is either zero or the number of tools that must be loaded exclusively for matching the workpiece;
- and O is the number of orders registered altogether for the workpiece.
(canceled)
(canceled)
A control apparatus for a machine tool with a tool magazine for tools, of which the machine tool can hold one at any time for machining a workpiece, wherein the control apparatus is designed to carry out the following steps:
- registering workpieces to be machined;
- and
- grouping registered workpieces into set-up families in such a way that a set-up assigned to the set-up family is sufficient to machine the workpieces of the set-up family,
- wherein the set-up comprises tools which can be loaded simultaneously in the tool magazine,
- and wherein the set-up families are formed in such a way that the number of tools that are to be loaded for machining the registered workpieces is minimized as far as possible;
- wherein
- a plurality of workpieces of the same type are grouped to form on order, and the set-up families are formed in such a way that the expression (M−E)*O is maximized as far as possible over all the workpieces of all type set-up families;
- wherein M is the number of tools that must be loaded for machining the workpiece;
- E is either zero or the number of tools that must be loaded exclusively for machining the workpiece;
- and O is the number of orders registered altogether for the workpiece.
A machining system comprising a machine tool with a tool magazine for tools, of which the machine tool can hold one at any time for machining a workpiece, as well as a control apparatus as claimed in claim.
Dependencies are inferred from the claim text.