MACHINE TOOL INCLUDING NUMERICAL CONTROLLER WITH FUNCTION TO DETERMINE REPLACEMENT TIME FOR MAINTENANCE COMPONENT
First Claim
1. A machine tool controlled by a numerical controller, whereinthe numerical controller has a function to determine a replacement time for a maintenance component used in a movable portion of the machine tool and outputting to the machine tool an operation instruction related to the movable portion, andthe machine tool has an operation completion signal output unit that outputs, to the numerical controller, an operation completion signal indicating that the operation of the movable portion based on the operation instruction is complete, and whereinthe numerical controller includes:
- a response time calculation unit that calculates, as a response time of operation, a time from a point in time when the numerical controller outputs the operation instruction until a point in time when the numerical control device receives the operation completion signal from the operation completion signal output unit;
a maintenance component replacement time determination unit that determines that a time has come to replace the maintenance component used in the movable portion when the calculated response time of operation is longer than a preset set time; and
a display unit that displays a result of determination by the maintenance component replacement time determination unit.
3 Assignments
0 Petitions
Accused Products
Abstract
A controller for a machine tool outputs an operation instruction signal to the machine tool. The machine tool transmits a signal indicating that the instructed operation is compete. The controller determines a response time of operation to be a difference in time between a point in time when the numerical controller outputs an operation instruction signal and a point in time when the numerical controller receives a signal from the machine tool. When the response time of operation exceeds a preset value, the numerical controller determines that a corresponding maintenance component needs to be replaced and informs a user of the need for replacement by means of a display unit.
20 Citations
6 Claims
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1. A machine tool controlled by a numerical controller, wherein
the numerical controller has a function to determine a replacement time for a maintenance component used in a movable portion of the machine tool and outputting to the machine tool an operation instruction related to the movable portion, and the machine tool has an operation completion signal output unit that outputs, to the numerical controller, an operation completion signal indicating that the operation of the movable portion based on the operation instruction is complete, and wherein the numerical controller includes: -
a response time calculation unit that calculates, as a response time of operation, a time from a point in time when the numerical controller outputs the operation instruction until a point in time when the numerical control device receives the operation completion signal from the operation completion signal output unit; a maintenance component replacement time determination unit that determines that a time has come to replace the maintenance component used in the movable portion when the calculated response time of operation is longer than a preset set time; and a display unit that displays a result of determination by the maintenance component replacement time determination unit. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification