Detailed die process severity analysis and optimization methodology
First Claim
1. A method of monitoring the operation of a press machine, comprising the steps of:
- running the press machine through a plurality of press running cycles;
defining a plurality of press operating events associated with the operation of said press machine, each respective one of said plurality of press operating events having a modifiable control function associated therewith;
providing for each respective one of said plurality of press operating events a respective measure of the vibrational activity associated therewith present in the press machine during each respective one of said plurality of press running cycles and generating a respective vibration measurement signal representative thereof;
processing the respective vibration measurement signals associated with each respective one of said plurality of press operating events to identify the presence of a vibration trend therein meeting a defined trending criteria; and
modifying the respective control function of each press operating event determined by said processing step to be associated with the identification of said vibration trend.
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Abstract
A system is provided for monitoring the operation of a press machine over a series of press running cycles. A plurality of press operating events associated with the operation of the press machine are defined. Each press operating event has a modifiable control function associated therewith. An arrangement of accelerometers measures the press machine vibrational activity associated with each press operating event that occurs during the series of press running cycles. A processor processes the vibration measurements associated with the press operating events to identify the presence of a vibration trend therein meeting a defined trending criteria. A controller is responsive to trend identification signals generated by the processor for modifying the respective control function of each press operating event which is associated with identification of the vibration trend.
5 Citations
48 Claims
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1. A method of monitoring the operation of a press machine, comprising the steps of:
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running the press machine through a plurality of press running cycles;
defining a plurality of press operating events associated with the operation of said press machine, each respective one of said plurality of press operating events having a modifiable control function associated therewith;
providing for each respective one of said plurality of press operating events a respective measure of the vibrational activity associated therewith present in the press machine during each respective one of said plurality of press running cycles and generating a respective vibration measurement signal representative thereof;
processing the respective vibration measurement signals associated with each respective one of said plurality of press operating events to identify the presence of a vibration trend therein meeting a defined trending criteria; and
modifying the respective control function of each press operating event determined by said processing step to be associated with the identification of said vibration trend. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of monitoring the operation of a press machine, comprising the steps of:
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running the press machine through a plurality of press running cycles;
providing a respective measure of the vibrational activity present in said press machine during each respective one of said plurality of press running cycles and generating a respective vibration measurement signal representative thereof;
defining a plurality of press operating events associated with the operation of said press machine, each respective one of said plurality of press operating events having a modifiable control function associated therewith;
resolving the respective vibration measurement signal associated with each respective one of said plurality of press running cycles into a corresponding set of component vibration signals each associated with a respective one of said plurality of press operating events;
processing the respective set of component vibration signals associated with each respective one of said plurality of press running cycles to identify the presence of a vibration trend therein meeting a defined trending criteria, the identification of said vibration trend being made in relation to component vibration signals associated with the same press operating event; and
modifying the respective control function of each press operating event which corresponds to the component vibration signals associated with identification of said vibration trend. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20, 21)
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16. A system for monitoring the operation of a press machine over a plurality of press running cycles, comprising:
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means for defining a plurality of press operating events associated with the operation of said press machine, each respective one of said plurality of press operating events having a modifiable control function associated therewith;
measurement means for providing, with respect to each one of said plurality of press operating events, a respective measure of the vibrational activity associated therewith present in the press machine during each one of said plurality of press running cycles and for generating a respective vibration measurement signal representative thereof;
processor means for processing the respective vibration measurement signals associated with each respective one of said plurality of press operating events to identify the presence of a vibration trend therein meeting a defined trending criteria and to generate trend identification signals representative thereof; and
controller means, responsive to the trend identification signals generated by said processor means, for modifying the respective control function of each press operating event associated with identification of said vibration trend.
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22. A system for monitoring the operation of a press machine over a plurality of press running cycles, comprising:
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measurement means for providing a respective measure of the vibrational activity present in said press machine during each respective one of said plurality of press running cycles and for generating a respective vibration measurement signal representative thereof;
means for defining a plurality of press operating events associated with the operation of said press machine, each respective one of said plurality of press operating events having a modifiable control function associated therewith;
signal resolving means for resolving the respective vibration measurement signal associated with each respective one of said plurality of press running cycles into a corresponding set of component vibration signals each associated with a respective one of said plurality of press operating events;
processor means for processing the respective set of component vibration signals associated with each respective one of said plurality of press running cycles to identify the presence of a vibration trend therein meeting a defined trending criteria and to generate trend identification signals representative thereof, wherein the identification being made in relation to component vibration signals associated with the same press operating event; and
control means, responsive to the trend identification signals generated by said processor means, for modifying the respective control function of each press operating event which corresponds to the component vibration signals associated with identification of said vibration trend. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30)
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31. A method of monitoring the operation of a press machine having an operatively movable press member, said method comprising the steps of:
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defining at least two load measurement locations associated with said movable press member;
providing a measure of the load developed within said movable press member at each respective one of said at least two load measurement locations and generating load measurement signals representative thereof;
determining a tipping moment experienced by said movable press member based upon the generated load measurement signals; and
evaluating the determined tipping moment relative to a predefined tipping moment severity level. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39)
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40. A system for monitoring the operation of a press machine having an operatively movable press member, comprising:
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measurement means for providing a measure of the load developed within said movable press member at each respective one of at least two load measurement locations thereof and for generating load measurement signals representative thereof;
processor means, responsive to said load measurement signals generated by said measurement means, for determining a tipping moment experienced by said movable press; and
evaluation means for evaluating the determined tipping moment relative to a predefined tipping moment severity level. - View Dependent Claims (41, 42, 43, 44, 45, 46, 47, 48)
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Specification