Servo tailstock control system and method

Abstract

A servo tailstock control system and method, wherein when a control unit receives a first machining file for processing the workpiece from an input unit, and compares the first machining file with a database; when the first machining file is the same as at least one machining file in the database, the control unit compares the relative relationship between the tailstock motor and the spindle motor in the at least one machining file with a tailstock motor sensing signal, a tailstock motor signal, and a spindle motor signal transmitted by the current sensor; the control unit then transmits tailstock motor control commands and spindle motor control commands respectively based on the comparison results to control the relative relationship between the tailstock and the workpiece.

Claims

1. A servo tailstock control system, comprising: One input unit; One tail seat; A tailstock motor is coupled to the tailstock. A sensor is coupled to the tailstock motor; One workpiece; A spindle motor coupled to the workpiece; a storage unit including a database containing at least one machining file used to execute the relative relationship between the tailstock motor and the spindle motor during the machining program; a control unit coupled to the input unit, the storage unit, the tailstock motor, the sensor, and the spindle motor; the control unit receives a first machining file currently used for machining the workpiece from the input unit and compares the first machining file with the database in the storage unit; when the first machining file is the same as the at least one machining file in the database, the control unit compares the relative relationship between the tailstock motor and the spindle motor in the at least one machining file with a tailstock motor sensing signal currently transmitted by the sensor, a tailstock motor signal currently transmitted by the tailstock motor, and a spindle motor signal currently transmitted by the spindle motor; the control unit transmits a tailstock motor control command and a spindle motor control command to the tailstock motor and the spindle motor respectively based on the comparison results, so as to control and adjust the relative relationship between the tailstock and the workpiece respectively.

2. The servo tailstock control system as described in claim 1, wherein, The tailstock motor signal includes the current signal of the tailstock motor, and the spindle motor signal includes the current signal of the spindle motor; the control unit calculates the thrust of the tailstock based on the current signal of the tailstock motor, the control unit calculates the load rate of the spindle motor based on the current signal of the spindle motor, and the control unit calculates the position and speed of the tailstock based on the tailstock motor sensing signal.

3. The servo tailstock control system as described in claim 2, wherein, The control unit compares the calculated push force of the tailstock, the load rate of the spindle motor, the position and speed of the tailstock with the at least one machining file in the database, and transmits the tailstock motor control command and the spindle motor control command to the tailstock motor and the spindle motor respectively according to the comparison results, so as to control the relative relationship between the tailstock and the workpiece respectively.

4. The servo tailstock control system as described in claim 3, wherein, The relative relationship between the tailstock and the workpiece includes relative forces and / or relative velocities and / or relative positions.

5. The servo tailstock control system as described in claim 1, wherein, The sensor is an encoder.

6. A servo tailstock control method, applied to control the relative relationship between a tailstock and a workpiece, wherein a tailstock motor is coupled to the tailstock, a sensor is coupled to the tailstock motor, and a spindle motor is coupled to the workpiece, the control method comprising: storing at least one processing file in a database in a storage unit for executing the relative relationship between the tailstock motor and the spindle motor during a processing program; coupling an input unit, the storage unit, the tailstock motor, the sensor, and the spindle motor through a control unit; when the control unit receives a first processing file for processing the workpiece from the input unit, and compares the first processing file with the database in the storage unit; when the first processing file is the same as the at least one processing file in the database, the control unit compares the relative relationship between the tailstock motor and the spindle motor in the at least one processing file with a tailstock motor sensing signal from the sensor, a tailstock motor signal from the tailstock motor, and a spindle motor signal from the spindle motor; The control unit then transmits a tailstock motor control command and a spindle motor control command to the tailstock motor and the spindle motor respectively based on the aforementioned comparison results, so as to control and adjust the relative relationship between the tailstock and the workpiece respectively.

7. The servo tailstock control method as described in claim 6, wherein, The tailstock motor signal includes the current signal of the tailstock motor, and the spindle motor signal includes the current signal of the spindle motor; the control unit calculates the thrust of the tailstock based on the current signal of the tailstock motor, the control unit calculates the load rate of the spindle motor based on the current signal of the spindle motor, and the control unit calculates the position and speed of the tailstock based on the tailstock motor sensing signal.

8. The servo tailstock control method as described in claim 7, wherein, The control unit compares the calculated push force of the tailstock, the load rate of the spindle motor, the position and speed of the tailstock with the at least one machining file in the database, and transmits the tailstock motor control command and the spindle motor control command to the tailstock motor and the spindle motor respectively according to the comparison results, so as to control the relative relationship between the tailstock and the workpiece respectively.

9. The servo tailstock control method as described in claim 8, wherein, The relative relationship between the tailstock and the workpiece includes relative forces and / or relative velocities and / or relative positions.

10. The servo tailstock control method as described in claim 6, wherein, The sensor is an encoder.

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