Claims
- 1. An electronic component transferring apparatus for transferring electronic components, comprising:
- at least one movable member;
- a movable-member moving device which moves said movable member;
- a rotary head which is supported by said movable member such that said rotary head is rotatable about an axis line thereof;
- a plurality of component holders which are supported by said rotary head such that said component holders are axis-symmetric with each other with respect to said axis line of the rotary head;
- a drive source which is supported by said movable member, which includes an output member, and which provides a motion to said output member; and
- a motion transmitting device which is selectively operable in a component-holder selecting state in which said motion transmitting device transmits said motion of said output member of said drive source to said rotary head, to rotate the rotary head about said axis line thereof and thereby position one of said component holders at a predetermined position in which said one component holder holds one of the electronic components, and in a component-holder rotating state in which said motion transmitting device transmits said motion of said output member of said drive source to at least said one component holder being positioned at said predetermined position, to rotate said one component holder about an axis line thereof.
- 2. The electronic component transferring apparatus according to claim 1, further comprising a rotary holder which supports said rotary head such that the rotary head is rotatable about said axis line thereof and which is supported by said movable member such that said rotary holder is rotatable about an axis line thereof coaxial with said axis line of said one component holder being positioned at said operating position, wherein said motion transmitting device rotates, in said component-holder rotating state thereof, said rotary holder about said axis line thereof coaxial with said axis line of said one component holder being positioned at said operating position, so as to rotate said one component holder about said axis line thereof.
- 3. The electronic component transferring apparatus according to claim 1, wherein said drive source comprises a rotary motor having a rotary output shaft, and wherein said motion transmitting device comprises a component-holder selecting-rotation transmitting device including a component-holder selecting-rotation input member which is rotatable to rotate said rotary head about said axis line thereof, a component-holder rotating-rotation transmitting device including a component-holder rotating-rotation input member which is rotatable to rotate at least said one component holder positioned at said operating position, about said axis line thereof, a transmission control device which is selectively operable in a first transmitting state in which said transmission control device permits a rotation of said output shaft of said rotary motor to be transmitted to each of said component-holder selecting-rotation input member and said component-holder rotating-rotation input member, and in a second transmitting state in which said transmission control device permits said rotation of said output shaft to be transmitted to only one of said component-holder selecting-rotation input member and said component-holder rotating-rotation input member.
- 4. The electronic component transferring apparatus according to claim 3, wherein said motion transmitting device comprises a connecting device which permits said rotation of said output shaft of said drive motor to be transmitted to one of said component-holder selecting-rotation input member and said component-holder rotating-rotation input member, and a switching device which is selectively operable in a first state in which said switching device permits said rotation of said output shaft to be transmitted to the other of said selecting-rotation input member and said rotating-rotation input member and in a second state in which the switching device does not permit said rotation of said output shaft to be transmitted to said other of said selecting-rotation input member and said rotating-rotation input member.
- 5. The electronic component transferring apparatus according to claim 3, wherein said rotary motor comprises a bidirectional rotary motor having a rotary output shaft which is rotatable in a first direction and a second direction opposite to said first direction, and wherein said motion transmitting device comprises an each-direction-rotation transmitting device which transmits a rotation of said output shaft of said bi-directional rotary motor in each of said first and second directions to one of said component-holder selecting-rotation input member and said component-holder rotating-rotation input member, and in a one-direction-rotation transmitting device which transmits, to the other of said selecting-rotation input member and said rotating-rotation input member, the rotation of said output shaft in said first direction and does not transmit the rotation of said output shaft in said second direction.
- 6. The electronic component transferring apparatus according to claim 1, wherein said motion transmitting device comprises a switching device which is selectively operable in a first state in which said switching device permits the transmission of said motion of said drive source, and in a second state in which the switching device does not permit the transmission of said motion of said drive source.
- 7. The electronic component transferring apparatus according to claim 6, wherein said drive source comprises a rotary motor having a rotary output shaft, wherein said motion transmitting device comprises a component-holder selecting-rotation transmitting device including a component-holder selecting-rotation input member which is rotatable to rotate said rotary head about said axis line thereof, and a component-holder rotating-rotation transmitting device including a component-holder rotating-rotation input member which is rotatable to rotate at least said one component holder being positioned at said operating position, about said axis line thereof, and wherein said switching device comprises a drive member which is rotatable with said output shaft of said rotary motor, a driven member which is rotatable with one of said component-holder selecting-rotation input member and said component-holder rotating-rotation input member and which is engageable with said drive member such that said driven member is rotatable with said drive member, and an engaging and disengaging device which moves at least one of said drive member and said driven member relative to each other in an axial direction of said output shaft of said rotary motor and thereby engages, and disengages, the drive member and the driven member with, and from, each other.
- 8. An electronic component transferring apparatus according to claim 7, wherein said driven member is rotatable with said component-holder rotating-rotation input member, and wherein said motion transmitting device comprises a rotation preventing device which permits the rotation of said component-holder rotating-rotation input member, while said drive member and said driven member are engaged with each other, and prevents the rotation of said component-holder rotating-rotation input member, while said drive member and said driven member are disengaged from each other.
- 9. The electronic component transferring apparatus according to claim 8, wherein said rotation preventing device comprises a first rotation preventing member which is rotatable with said component-holder rotating-rotation input member, and a second rotation preventing member which is not rotatable relative to said movable member and which is engageable with said first rotation preventing member, and wherein said engaging and disengaging device engages, and disengages, said drive member and said driven member with, and from, each other and simultaneously disengages, and engages, said first and second rotation preventing members from, and with, each other.
- 10. The electronic component transferring apparatus according to claim 9, further comprising a motor support on which said rotary motor is fixedly supported and which is supported by said movable member such that said motor support is movable relative to said rotary holder in an axial direction of said output shaft of said rotary motor, wherein said drive member and said second rotation preventing member are immovable relative to said motor support in said axial direction of said output shaft, and wherein said engaging and disengaging device comprises a biasing member which provides a biasing force to bias said motor support in a direction away from said rotary holder, and a motor-support moving device which moves said motor support toward said rotary holder against the biasing force of said biasing member.
- 11. The electronic component transferring apparatus according to claim 1, further comprising a rotary-head positioning device which positions said rotary head at an angular position about said axis line thereof where said one component holder is positioned at said operating position.
- 12. The electronic component transferring apparatus according to claim 11, wherein said rotary-head positioning device comprises an engageable projection and an engageable recess one of which is provided in a portion of said rotary head which portion is away from said axis line of the rotary head and the other of which is supported by a head holder which holds said rotary head such that said rotary head is rotatable about said axis line thereof, and a pressing device which elastically presses at least one of said projection and said recess to engage each other at least in a state in which one of said component holders is positioned at said operating position, said projection and said recess having respective shapes which are engageable with each other to define an angular position of said rotary head about said axis line thereof.
- 13. The electronic component transferring apparatus according to claim 1, wherein respective axis lines of said component holders intersect said axis line of said rotary head.
- 14. The electronic component transferring apparatus according to claim 1, wherein respective axis lines of said component holders are parallel to said axis line of said rotary head.
- 15. The electronic component transferring apparatus according to claim 1, further comprising a component-holder selecting-rotation transmitting device including a component-holder selecting-rotation input member which is rotatable to rotate said rotary head about said axis line thereof, and a component-holder rotating-rotation transmitting device including a component-holder rotating-rotation input member which is rotatable to rotate at least said one component holder being positioned at said operating position, about said axis line thereof.
- 16. The electronic component transferring apparatus according to claim 15, further comprising a rotary holder which supports said rotary head such that the rotary head is rotatable about said axis line thereof and which is supported by said movable member such that said rotary holder is rotatable about an axis line thereof coaxial with said axis line of said one component holder being positioned at said operating position, wherein said component-holder selecting-rotation transmitting device includes (a) said component-holder selecting-rotation input member which is held by said rotary holder such that the selecting-rotation input member is rotatable about said axis line of the rotary holder relative thereto, and (b) an input-member-rotation converting device which converts the rotation of said selecting-rotation input member into the rotation of said rotary head about said axis line thereof.
- 17. The electronic component transferring apparatus according to claim 16, wherein said input-member-rotation converting device comprises at least one pair of bevel gears which are engaged with each other.
- 18. The electronic component transferring apparatus according to claim 1, further comprising a rotary holder which supports said rotary head such that the rotary head is rotatable about said axis line thereof and which is supported by said movable member such that said rotary holder is rotatable about an axis line thereof coaxial with said axis line of said one component holder being positioned at said operating position, wherein said drive source comprises a rotary motor having a rotary output shaft, and wherein said motion transmitting device comprises a rotation transmitting device which transmits a rotation of said output shaft of said rotary motor to said rotary holder, and a rotation converting device which is provided between the rotary holder and said rotary head and which converts at least a portion of a rotation of said rotary holder into a rotation of said rotary head relative to the rotary holder.
- 19. The electronic component transferring apparatus according to claim 18, wherein said rotation converting device comprises a cam, a cam follower which is supported by said rotary holder such that said cam follower is movable relative thereto and which is engageable with said cam when the rotary holder is rotated about said axis line thereof, and a cam-follower-motion converting device which converts the motion of said cam follower relative to said rotary holder into said rotation of said rotary head relative to the rotary holder.
- 20. The electronic component transferring apparatus according to claim 19, wherein said motion transmitting device comprises a position changing device which changes a position of at least one of said rotary holder and said cam relative to the other of the rotary holder and the cam, between a first position in which the cam and said cam follower are engageable with each other when the rotary holder is rotated about said axis line thereof, and in a second position in which the cam and said cam follower are not engageable with each other.
- 21. The electronic component transferring apparatus according to claim 19, wherein said rotation converting device comprises a drive cam which is not rotatable about said axis line of said rotary head, a driven cam which is rotatable with said rotary head and which is movable relative to said drive cam in a direction parallel to said axis line of said rotary head, and a biasing member which provides a biasing force to bias at least one of said drive cam and said driven cam in a direction away from each other, said drive cam and said driven cam having respective shapes which cooperate with each other to rotate said rotary head about said axis line thereof by a predetermined angle each time the drive cam and the driven cam are engaged, based on the movement of said cam follower relative to the rotary holder, with each other against the biasing force of said biasing member.
- 22. The electronic component transferring apparatus according to claim 21, further comprising a rotary-head positioning device which positions said rotary head at an angular position about said axis line thereof where said one component holder is positioned at said operating position, said rotary-head positioning device comprising an engageable projection which projects from a portion of one of said rotary head and said rotary holder which portion is away from said axis line of the rotary head, an engageable recess which is formed in the other of said rotary head and said rotary holder and which is engageable with said engageable projection, and a holding and biasing device which holds one of said engageable projection and said engageable recess such that said one of said projection and said recess is movable in a first direction to engage the other of the projection and the recess and in a second direction to disengage from the other of the projection and the recess and such that said one of said projection and said recess is rotatable with said rotary head, said holding and biasing device biasing said one of said projection and said recess in said first direction, one of said projection and said recess being provided in a number which is not less than one and is natural-number times as great as a number of said component holders, the other of said projection and said recess being provided in one, said projection and said recess having respective shapes which cooperate with each other to guide, when one of said projection and said recess being not accurately aligned with each other is biased by said biasing member, said one of the projection and the recess and thereby accurately align the projection and the recess with each other, so as to cause the projection and the recess to be engaged with each other.
- 23. The electronic component transferring apparatus according to claim 22, wherein said rotary head and said driven cam are supported by said rotary holder such that the rotary head and the driven cam are movable in a direction parallel to said axis line of the rotary head, and wherein said holding and biasing device comprises fixing means for fixing one of said engageable projection and said engageable recess to said rotary head, and a biasing member which biases said rotary head in a direction to engage said projection and said recess with each other.
- 24. The electronic component transferring apparatus according to claim 21, wherein said rotary head and said driven cam are supported by said rotary holder such that the rotary head and the driven cam are movable in a direction parallel to said axis line of the rotary head, and wherein said rotary-head positioning device comprises an engageable projection and an engageable recess one of which is provided in a portion of said rotary head which portion is away from said axis line of the rotary head and the other of which is supported by said rotary holder such that said other of said engageable projection and said engageable recess is not movable in an direction of rotation of said rotary head and is movable toward, and away from, the rotary head and is biased in a direction to engage said one of said projection and said recess, said projection and said recess having respective shapes which are engageable with each other to define an angular position of said rotary head about said axis line thereof and permit the rotary head to be moved in said direction parallel to said axis line thereof.
- 25. The electronic component transferring apparatus according to claim 1, wherein said rotary head supports said component holders such that said component holders are rotatable about respective axis lines thereof parallel to said axis line of the rotary head, and wherein said motion transmitting device rotates, in said component-holder selecting state thereof, said rotary head about said axis line thereof and rotates, in said component-holder rotating state thereof, said at least one component holder about said axis line thereof relative to said rotary head.
- 26. The electronic component transferring apparatus according to claim 25, wherein said drive source comprises a rotary motor having a rotary output shaft which is rotatable in a first direction and a second direction opposite to said first direction, and wherein said motion transmitting device comprises a component-holder selecting-rotation transmitting device including a component-holder selecting-rotation input member which is rotatable to rotate said rotary head about said axis line thereof, a component-holder rotating-rotation transmitting device including a component-holder rotating-rotation input member which is rotatable to rotate at least said one component holder positioned at said operating position, about said axis line thereof, a first one-way rotation transmitting device which transmits, to said selecting-rotation input member, a rotation of said rotary motor in said first direction and does not transmit a rotation of the rotary motor in said second direction, and a second one-way rotation transmitting device which transmits, to said rotating-rotation input member, said rotation of said rotary motor in said second direction and does not transmit said rotation of the rotary motor in said first direction.
- 27. The electronic component transferring apparatus according to claim 1, wherein said drive source comprises a rotary motor which is rotatable in a first direction and a second direction opposite to said first direction, and wherein said motion transmitting device comprises a one-way rotation transmitting device which transmits a rotation of said rotary motor in said first direction and does not transmit a rotation of the rotary motor in said second direction.
- 28. An electronic component transferring apparatus for transferring electronic components, comprising:
- at least one movable member;
- a movable-member moving device which moves said movable member;
- a rotary head which is supported by said movable member such that said rotary head is rotatable about an axis line thereof;
- a plurality of component holders which are supported by said rotary head such that said component holders are axis-symmetric with each other with respect to said axis line of the rotary head;
- a drive source which is supported by said movable member, which includes an output member, and which provides a motion to said output member;
- a component-holder selecting device which rotates, based on said motion of said output member of said drive source, said rotary head about said axis line thereof and positions one of said component holders at a predetermined position in which said one component holder holds one of the electronic components; and
- a component-holder rotating device which rotates, based on said motion of said output member of said drive source, at least said one component holder being positioned at said predetermined position, about an axis line thereof, without causing the rotation of said rotary head about said axis line thereof.
- 29. The electronic component transferring apparatus according to claim 28, wherein respective axis lines of said component holders intersect said axis line of said rotary head.
- 30. The electronic component transferring apparatus according to claim 28, wherein respective axis lines of said component holders are parallel to said axis line of said rotary head.
- 31. The electronic component transferring apparatus according to claim 28, wherein said component-holder selecting device comprises a component-holder selecting-rotation transmitting device including a component-holder selecting-rotation input member which is rotatable to rotate said rotary head about said axis line thereof, and wherein said component-holder rotating device comprises a component-holder rotating-rotation transmitting device including a component-holder rotating-rotation input member which is rotatable to rotate at least said one component holder being positioned at said operating position, about said axis line thereof.
- 32. The electronic component transferring apparatus according to claim 31, further comprising a rotary holder which supports said rotary head such that the rotary head is rotatable about said axis line thereof and which is supported by said movable member such that said rotary holder is rotatable about an axis line thereof coaxial with said axis line of said one component holder being positioned at said operating position, wherein said component-holder selecting-rotation transmitting device includes (a) said component-holder selecting-rotation input member which is held by said rotary holder such that the selecting-rotation input member is rotatable about said axis line of the rotary holder relative thereto, and (b) an input-member-rotation converting device which converts the rotation of said selecting-rotation input member into the rotation of said rotary head about said axis line thereof.
Priority Claims (2)
Number |
Date |
Country |
Kind |
7-342430 |
Dec 1995 |
JPX |
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8-036351 |
Feb 1996 |
JPX |
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Parent Case Info
This is a Continuation-In-Part of application Ser. No. 08/769,700, filed Dec. 18, 1996, U.S. Pat. No. 5,926,950.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
5588195 |
Asai et al. |
Dec 1996 |
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Foreign Referenced Citations (3)
Number |
Date |
Country |
2-69998 |
Mar 1990 |
JPX |
6-45787 |
Feb 1994 |
JPX |
6-77693 |
Mar 1994 |
JPX |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
769700 |
Dec 1996 |
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