Component placing device and component placing method
First Claim
1. A component placing device comprising:
- a plurality of nozzles that put suction paths under a negative pressure to hold components;
a plurality of nozzle shafts that hold the plurality of nozzles at lower end portions of the nozzle shafts so as to be freely replaceable and each of which has an internal flow path leading to a corresponding one of the suction paths;
a rotating object that holds the plurality of nozzle shafts at equal pitches on a circumference of a circle, of which a center is a rotation axis, so that the plurality of nozzle shafts rise and fall freely and the rotating object rotates about the rotation axis to move the plurality of nozzles in turn to a plurality of stations including a component holding and placing station where operation of holding the components or placing components held by the plurality of nozzles at predetermined placement positions on a workpiece is performed and a component detecting station where detection of the components held by the plurality of nozzles is performed;
a nozzle rising and falling mechanism that causes the plurality of nozzles to rise and fall at the component holding and placing station;
a component detector that detects the components held by the plurality of nozzles at the component detecting station;
a negative pressure flow path that is an air flow path formed inside the rotating object and leads to an external negative pressure source;
a positive pressure flow path that is an air flow path formed inside the rotating object and leads to an external positive pressure source;
a contact flow path that is an air flow path formed inside the rotating object and communicates with the internal flow path of each of the plurality of nozzle shafts;
a flow path switcher that is internally provided in the rotating object, has a spool which moves by air for power, and causes the contact flow path to selectively communicate with the negative pressure flow path and the positive pressure flow path by movement of the spool;
a first pilot flow path and a second pilot flow path, which are internally provided in the rotating object and through which air for power to drive the spool of the flow path switcher is supplied; and
a communication plug for power air, which comes into contact with an exterior surface of the rotating object and through which air for power is supplied to the first pilot flow path and the second pilot flow path from the outside.
1 Assignment
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Accused Products
Abstract
A component placing device has a configuration where a plurality of nozzle shafts are moved in turn to a plurality of stations including a component holding and placing station and a component detecting station by rotating a rotating object having the plurality of nozzle shafts, in which nozzles are installed, about a rotation axis. A configuration where a flow path switcher, which selectively connects a suction path of each of the nozzles to a positive pressure source and to a negative pressure source by movement of a spool, is disposed on an inside of a corresponding one of the nozzle shafts, and air for power to drive the spool is supplied to the rotating object via a manifold, in which a communication plug for power air that comes into contact with an exterior surface of the rotating object is provided, is adopted.
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Citations
13 Claims
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1. A component placing device comprising:
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a plurality of nozzles that put suction paths under a negative pressure to hold components; a plurality of nozzle shafts that hold the plurality of nozzles at lower end portions of the nozzle shafts so as to be freely replaceable and each of which has an internal flow path leading to a corresponding one of the suction paths; a rotating object that holds the plurality of nozzle shafts at equal pitches on a circumference of a circle, of which a center is a rotation axis, so that the plurality of nozzle shafts rise and fall freely and the rotating object rotates about the rotation axis to move the plurality of nozzles in turn to a plurality of stations including a component holding and placing station where operation of holding the components or placing components held by the plurality of nozzles at predetermined placement positions on a workpiece is performed and a component detecting station where detection of the components held by the plurality of nozzles is performed; a nozzle rising and falling mechanism that causes the plurality of nozzles to rise and fall at the component holding and placing station; a component detector that detects the components held by the plurality of nozzles at the component detecting station; a negative pressure flow path that is an air flow path formed inside the rotating object and leads to an external negative pressure source; a positive pressure flow path that is an air flow path formed inside the rotating object and leads to an external positive pressure source; a contact flow path that is an air flow path formed inside the rotating object and communicates with the internal flow path of each of the plurality of nozzle shafts; a flow path switcher that is internally provided in the rotating object, has a spool which moves by air for power, and causes the contact flow path to selectively communicate with the negative pressure flow path and the positive pressure flow path by movement of the spool; a first pilot flow path and a second pilot flow path, which are internally provided in the rotating object and through which air for power to drive the spool of the flow path switcher is supplied; and a communication plug for power air, which comes into contact with an exterior surface of the rotating object and through which air for power is supplied to the first pilot flow path and the second pilot flow path from the outside. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A component placing method for a component placing device that includes a plurality of nozzles that put suction paths under a negative pressure to hold components, a plurality of nozzle shafts that hold the plurality of nozzles at lower end portions of the nozzle shafts so as to be freely replaceable and each of which has an internal flow path leading to a corresponding one of the suction paths, a rotating object that holds the plurality of nozzle shafts at equal pitches on a circumference of a circle, of which a center is a rotation axis, so that the plurality of nozzle shafts rise and fall freely and the rotating object rotates about the rotation axis to move the plurality of nozzles in turn to a plurality of stations including a component holding and placing station where operation of holding the components or placing components held by the plurality of nozzles at predetermined placement positions on a workpiece is performed and a component detecting station where detection of the components held by the plurality of nozzles is performed, a negative pressure flow path that is an air flow path formed inside the rotating object and leads to an external negative pressure source, a positive pressure flow path that is an air flow path formed inside the rotating object and leads to an external positive pressure source, a contact flow path that is an air flow path formed inside the rotating object and communicates with the internal flow path of each of the plurality of nozzle shafts, a flow path switcher that is internally provided in the rotating object, has a spool which moves by air for power, and causes the contact flow path to selectively communicate with the negative pressure flow path and the positive pressure flow path by movement of the spool, a first pilot flow path, which is internally provided in the rotating object and through which air for power to move the spool to a position where the contact flow path communicates with the negative pressure flow path is sent, and a second pilot flow path, which is internally provided in the rotating object and through which air for power to move the spool to a position where the contact flow path communicates with the positive pressure flow path is sent, the method comprising:
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positioning a target nozzle, out of the plurality of nozzles by rotating the rotating object at the component holding and placing station; supplying air for power to the first pilot flow path to put the suction path of the target nozzle under a negative pressure; holding the component by sucking the component by means of the target nozzle which is put under the negative pressure; moving the target nozzle to the component detecting station by rotating the rotating object; examining presence or absence of the component held by the target nozzle at the component detecting station; in a case where the component is not detected at the component detecting station, blocking the suction path of the target nozzle from the negative pressure flow path by supplying air for power to the second pilot flow path; positioning the target nozzle at the component holding and placing station by rotating the rotating object; and placing the component held by the target nozzle by supplying air for power to the second pilot flow path to put the suction path of the target nozzle under a positive pressure from the positive pressure source. - View Dependent Claims (12, 13)
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Specification