Random-period chip transfer apparatus
First Claim
1. A chip transfer apparatus for transferring chips onto works, the apparatus comprising:
- a first carrier for carrying chips thereon;
a second carrier for carrying works thereon;
a plurality of end-effectors receiving chips from said first carrier and transferring the chips onto the works carried by the second carrier;
a plurality of coaxial revolvers, each of which has said one end-effector, and can revolve around one common axis independently; and
servo drives, each of which drives each of said coaxial revolvers to independently and randomly change periodic revolving speed of each coaxial revolver;
wherein each of said end-effectors is inseparably mounted on each of said coaxial revolvers and distributed in one common circle around said axis, wherein each of said end-effectors moves sequentially keeping their order by the action of said servo drives, and is synchronized with said first carrier movement to receive a chip from said first carrier at substantially zero speed relative to said first carrier, and is synchronized with said second carrier movement to transfer said received chip onto the work on said second carrier at substantially zero speed relative to the second carrier, and is independently changed its revolving speed during the periodic motion including said receiving and transferring motion.
1 Assignment
0 Petitions
Accused Products
Abstract
A chip transfer apparatus includes a first carrier for feeding chips and a second carrier for carrying works on it. The transfer apparatus also includes a transfer engine including two or more coaxial revolvers, which can revolve coaxially with each other. Each of the coaxial revolvers includes an end-effector for receiving a chip from the first carrier and transferring the received chip onto a work on the second carrier. The end-effectors of the coaxial revolvers are arranged in a circle coaxial with the revolvers. The end-effectors sequentially receive chips from the first carrier at substantially zero speed relative to the first carrier and transfer the received chips onto works on the second carrier at substantially zero speed relative to the second carrier. While the end-effectors are revolving, they undergo periodic speed change control for timing adjustment and speed adjustment for the chip reception and transfer.
-
Citations
7 Claims
-
1. A chip transfer apparatus for transferring chips onto works, the apparatus comprising:
-
a first carrier for carrying chips thereon;
a second carrier for carrying works thereon;
a plurality of end-effectors receiving chips from said first carrier and transferring the chips onto the works carried by the second carrier;
a plurality of coaxial revolvers, each of which has said one end-effector, and can revolve around one common axis independently; and
servo drives, each of which drives each of said coaxial revolvers to independently and randomly change periodic revolving speed of each coaxial revolver;
wherein each of said end-effectors is inseparably mounted on each of said coaxial revolvers and distributed in one common circle around said axis, wherein each of said end-effectors moves sequentially keeping their order by the action of said servo drives, and is synchronized with said first carrier movement to receive a chip from said first carrier at substantially zero speed relative to said first carrier, and is synchronized with said second carrier movement to transfer said received chip onto the work on said second carrier at substantially zero speed relative to the second carrier, and is independently changed its revolving speed during the periodic motion including said receiving and transferring motion. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
Specification