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 configured to receive chips from said first carrier and to transfer the chips onto the works carried by the second carrier;
a first plurality of coaxial revolvers, each of which has one of said end-effectors, each of the coaxial revolvers configured to revolve around one stationary common axis independently; and
a plurality of servo drives, each configured to drive a respective one of said coaxial revolvers independently and to change a periodic revolving speed of the respective coaxial revolver,wherein each of said end-effectors is affixed to a respective one of said coaxial revolvers and all of the end-effectors are distributed in one stationary common circle around said one stationary common axis,wherein each of said end-effectors revolves independently along the one stationary common circle in sequential order in a periodic motion by the action of said servo drives, andwherein the servo drives are configured to change a respective revolving speed of each of the end-effectors independently during the periodic motion.
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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.
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Citations
14 Claims
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1. A chip transfer apparatus for transferring chips onto works, the apparatus comprising:
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a first carrier for carrying chips thereon; a second carrier for carrying works thereon; a plurality of end-effectors configured to receive chips from said first carrier and to transfer the chips onto the works carried by the second carrier; a first plurality of coaxial revolvers, each of which has one of said end-effectors, each of the coaxial revolvers configured to revolve around one stationary common axis independently; and a plurality of servo drives, each configured to drive a respective one of said coaxial revolvers independently and to change a periodic revolving speed of the respective coaxial revolver, wherein each of said end-effectors is affixed to a respective one of said coaxial revolvers and all of the end-effectors are distributed in one stationary common circle around said one stationary common axis, wherein each of said end-effectors revolves independently along the one stationary common circle in sequential order in a periodic motion by the action of said servo drives, and wherein the servo drives are configured to change a respective revolving speed of each of the end-effectors independently during the periodic motion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification