Formation of set-up families for a machining system with a machine tool
First Claim
1. 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,whereina 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 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.
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Accused Products
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.
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Citations
11 Claims
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1. 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:
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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 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. 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:
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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 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 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. - View Dependent Claims (11)
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Specification