US 12,377,506 B2 · Workpiece machining device and machining control method

Abstract

A workpiece machining device includes a sensor unit that detects the passage of a moving workpiece W, a machining unit that performs machining using a predetermined machining tool in a state where the workpiece W is moved, and a machining control unit that controls the operation of the machining unit. The machining control unit issues an operation command signal SP to the machining unit at intervals of a predetermined control cycle T, measures a detection time TD taken to receive a detection signal SD relative to a cycle start time point of the control cycle T, stores various parameters including the detection time TD, a difference between the control cycle T and the detection time TD is defined as a response delay time, and modifies the operation command signal SP in each control cycle T on the basis of the response delay time TD.

Claims14

Dependent claims

A workpiece machining device, comprising:

a sensor unit configured to transmit a detection signal upon detection of passage of a moving workpiece,
a machining unit arranged after the sensor unit in a moving direction of the workpiece and configured to perform machining on the workpiece using a predetermined machining tool by activating a machining mechanism while the workpiece is moving, and
a machining control unit configured to control an operation of the machining unit based on the detection signal from the sensor unit, wherein
the machining control unit includes
a main control unit configured to transmit an operation command signal to the machining mechanism of the machining unit at intervals of a unique control cycle of the main control unit,
a timing unit configured to measure a detection time taken to receive the detection signal relative to a cycle start time point of the unique control cycle, and
a memory that stores various parameters including the detection time,
a difference between the cycle start time point of the unique control cycle and the detection time is defined as a response delay time, and
the main control unit is configured to modify a command value of the operation command signal in each unique control cycle based on the response delay time.

6 more elements

A machining control method for performing machining on a workpiece using a predetermined machining tool by activating a machining mechanism of a machining unit arranged after a sensor unit in a moving direction of the workpiece while moving the workpiece based on a detection signal transmitted from a sensor unit that detects passage of the moving workpiece,

the machining control method comprising
controlling the machining by measuring a detection time taken to receive the detection signal relative to a cycle start time point of a unique control cycle for controlling the machining mechanism,
calculating a response delay time from a difference between the cycle start time point of the unique control cycle and the detection time, and
modifying a command value of an operation command signal transmitted to the machining mechanism in each unique control cycle based on the response delay time.

1 more element

Dependencies are inferred from the claim text.

Workpiece machining device and machining control method

Life of this patent

Workpiece machining device and machining control method

Life of this patent

Abstract

Claims14