METHOD AND CONTROL DEVICE FOR DETERMINATION OF THE TIME DURATION BEFORE A MACHINE ELEMENT REQUIRES SERVICING
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Abstract
The invention relates to a method for determination of the time duration (T) before a machine element (6) of a machine requires servicing, comprising the following method steps: determination of a position-related load curve (BK) of the machine element (6) on the basis of a process variable (a, r) and of a position variable (x) for a manufacturing process to be evaluated, storage of the load curve (BK) for each manufacturing process to be evaluated, determination of a summation curve (SK) by addition of the stored load curves (BK) and determination of the time duration (T) before the machine element (6) requires servicing, on the basis of a separation (A) between a predetermined limit variable (GK) and the summation curve (SK). The invention also relates to a control device (12) relating to this for the machine. The invention makes it possible to determine the time duration (T) before a machine element (6) of a machine requires servicing.
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Citations
18 Claims
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1-9. -9. (canceled)
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10. A method for determination of a time duration before a machine element of a machine requires servicing, comprising the following method steps:
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determining a position-related load curve of the machine element based on a process variable and a position variable for one or more manufacturing processes to be evaluated; storing the load curve for each manufacturing process to be evaluated; adding the stored load curves and determining a summation curve; determining a separation between a predetermined limit value and the summation curve; and determining from the separation the time duration before the machine element requires servicing. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A control device of a machine, comprising:
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means for determining a position-related load curve of the machine element based on a process variable and a position variable for one or more manufacturing processes to be evaluated; a memory for storing the load curve for each manufacturing process to be evaluated; means for adding the stored load curves to determine a summation curve; and means for determining a separation between a predetermined limit value and the summation curve and for determining from the separation the time duration before the machine element requires servicing.
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18. A computer program embodied on a computer-readable medium and containing code sections, which when loaded into memory of a computer, causes the computer to determine a time duration before a machine element of a machine requires servicing by:
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determining a position-related load curve of the machine element based on a process variable and a position variable for one or more manufacturing processes to be evaluated, storing the load curve for each manufacturing process to be evaluated, adding the stored load curves and determining a summation curve, determining a separation between a predetermined limit value and the summation curve, and determining from the separation the time duration before the machine element requires servicing.
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Specification