Machine tool with automatic process control and monitoring
First Claim
1. A device for grinding work pieces into machine tools, comprising:
- a machining arrangement which presents at least one grinding means and one setting means with which the grinding means and a work piece to be ground into a machine tool can be positioned in relation to one another;
a control arrangement connected with the setting means adapted to trigger the setting means for the generation of a stipulated from of the machine tool; and
a measuring arrangement, which, with the control arrangement, performs a measurement on the work piece after grinding and wherein the control arrangement, on establishment of a deviation between the stipulated form and the measurement, performs a correction of settings of the setting means for producing the machine tool.
2 Assignments
0 Petitions
Accused Products
Abstract
In a grinding machine a measurement arrangement is provided for the monitoring of the processing of a work piece, especially to make tools. The measuring arrangement uses, preferably, combined transmitted-light and incident-light based techniques so that both the edges and surfaces and depressions on the work piece are detected precisely. The automatic measurements makes it possible to automatically adjust the process parameters for the grinding process so that changes due to temperature drift, mechanical imprecisions of the mechanical system of the grinding machine or wear on the grinding disks are automatically compensated. This makes possible production of relatively large batches within very close tolerances and with high precision.
32 Citations
22 Claims
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1. A device for grinding work pieces into machine tools, comprising:
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a machining arrangement which presents at least one grinding means and one setting means with which the grinding means and a work piece to be ground into a machine tool can be positioned in relation to one another;
a control arrangement connected with the setting means adapted to trigger the setting means for the generation of a stipulated from of the machine tool; and
a measuring arrangement, which, with the control arrangement, performs a measurement on the work piece after grinding and wherein the control arrangement, on establishment of a deviation between the stipulated form and the measurement, performs a correction of settings of the setting means for producing the machine tool. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A process for grinding a work piece into a machine tool, the process comprising the steps of:
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grinding the work piece by a controllable machining arrangement having a control arrangement, a machining program and controllable interrupts;
executing, during a machining pause due to a controllable interrupt, at least one measurement means of a measuring arrangement controlled by the control arrangement to perform a measurement on the work piece after grinding; and
upon establishment of a deviation between a stipulated form of the machine tool and the measurement on the work piece, correcting settings of the machining program for producing the machine tool with the aid of the executed measurement for further machining. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A device for grinding work pieces into machine tools, comprising:
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a grinding head;
a movable work piece clamp adapted to position a work piece in relation to the grinding head during a programmed grinding operation for grinding the work piece into a machine tool of a desired form;
a controller in communication with the work piece clamp; and
a measuring device in communication with the controller;
wherein the measuring device is adapted to perform a measurement on the work piece after grinding and wherein the controller, responsive to the measurement, is adapted to cause the work piece clamp to change the relation of the work piece to the grinding head during the programmed grinding operation based on a deviation between the measurement on the work piece and the desired form of the machine tool. - View Dependent Claims (21, 22)
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Specification