MACHINE TOOL HAVING FUNCTION OF MONITORING SEALING OF CONTROL PANEL
First Claim
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1. A machine tool comprising:
- a control panel;
a temperature sensor and a humidity sensor that measure temperature and humidity inside the control panel, respectively;
a vapor amount calculation unit that calculates a vapor amount based on the temperature and the humidity;
a vapor amount storage unit that stores the vapor amount;
a vapor amount change ratio calculation unit that calculates a vapor amount change ratio based on the vapor amount calculated by the vapor amount calculation unit and the vapor amount stored in the vapor amount storage unit;
a vapor amount change ratio threshold setting unit that retains a threshold that is set in advance;
a vapor amount change ratio comparison unit that determines whether or not the vapor amount change ratio is greater than or equal to the threshold; and
an alert announcement unit that announces an alert when the vapor amount change ratio is greater than or equal to the threshold.
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Abstract
A machine tool has the function of monitoring the sealing performance of a control panel. The machine tool measures temperature and humidity inside the control panel, calculates a vapor amount from the measured results, and stores the vapor amount. A vapor amount change ratio is calculated based on a currently calculated vapor amount and a previously calculated and stored vapor amount. An alert is announced when the calculated vapor amount change ratio is greater than or equal to a specific value.
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Citations
4 Claims
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1. A machine tool comprising:
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a control panel; a temperature sensor and a humidity sensor that measure temperature and humidity inside the control panel, respectively; a vapor amount calculation unit that calculates a vapor amount based on the temperature and the humidity; a vapor amount storage unit that stores the vapor amount; a vapor amount change ratio calculation unit that calculates a vapor amount change ratio based on the vapor amount calculated by the vapor amount calculation unit and the vapor amount stored in the vapor amount storage unit; a vapor amount change ratio threshold setting unit that retains a threshold that is set in advance; a vapor amount change ratio comparison unit that determines whether or not the vapor amount change ratio is greater than or equal to the threshold; and an alert announcement unit that announces an alert when the vapor amount change ratio is greater than or equal to the threshold. - View Dependent Claims (2, 3, 4)
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Specification