Processing system and method for manufacturing metal member
AssigneeSumitomo Electric Sintered Alloy, Ltd.
InventorKazuo Maeda
Life of this patent
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Abstract
A processing system comprises a tool that processes a workpiece composed of a metal member, a motor that rotates the workpiece or the tool, a control unit that controls the motor, and a measurement unit that obtains an electrical quantity of the motor, wherein the control unit changes a rotational speed of the motor based on a difference between a first electrical quantity and a second electrical quantity, the first electrical quantity is an electrical quantity obtained by the measurement unit while the motor rotates before the workpiece is processed, and the second electrical quantity is an electrical quantity obtained by the measurement unit while the workpiece is processed.
Claims18
A processing system comprising:
- a tool that processes a workpiece composed of a metal member;
- a motor that rotates the workpiece or the tool;
- a control unit that controls the motor;
- and
- a measurement unit that obtains an electrical quantity of the motor, wherein
- the control unit is configured to detect an abnormality with the tool based on a difference between a first electrical quantity and a second electrical quantity, and in response to the abnormality being detected, control the motor to stop rotating,
- the first electrical quantity is an electrical quantity obtained by the measurement unit while the motor rotates before the workpiece is processed, and
- the second electrical quantity is an electrical quantity obtained by the measurement unit while the workpiece is processed.
A method for manufacturing a metal member, comprising:
- processing a workpiece composed of the metal member by using a tool while obtaining by a measurement unit an electrical quantity of a motor that rotates the tool or the workpiece, wherein
- the processing includes detecting an abnormality with the tool based on a difference between a first electrical quantity and a second electrical quantity, and in response to detecting the abnormality, controlling the motor to stop rotating,
- the first electrical quantity is an electrical quantity obtained by the measurement unit while the motor rotates before the workpiece is processed, and
- the second electrical quantity is an electrical quantity obtained by the measurement unit while the workpiece is processed.
A processing system comprising:
- a tool that processes a workpiece composed of a metal member;
- a motor that rotates the workpiece or the tool;
- control circuitry comprising a computer that controls the motor;
- and
- a sensor that obtains an electrical quantity of the motor, wherein
- the control circuitry is configured to detect an abnormality with the tool based on a difference between a first electrical quantity and a second electrical quantity, and in response to the abnormality being detected, control the motor to stop rotating,
- the first electrical quantity is an electrical quantity obtained by the sensor while the motor rotates before the workpiece is processed, and
- the second electrical quantity is an electrical quantity obtained by the sensor while the workpiece is processed.
Dependencies are inferred from the claim text.