Patent ID: 6970008

Claim:
A chip testing machine, comprising: a testing mechanism having a plurality of pairs of upper and lower probes for contacting chips, the testing mechanism acquiring data of chips in a testing operation and sorting the chips into a plurality of different groups according to a corresponding outcome of the testing operation; a feeding mechanism for helping convey chips to the testing mechanism; and a rotary conveying disk set for receiving chips from the feeding mechanism and conveying the chips to the testing mechanism, the rotary conveying disk set including a plurality of spaced rotary conveying disks, the rotary conveying disks being actuated to rotate synchronously by means of single transmission device to receive chips conveyed from the feeding mechanism as well as to convey chips to the testing mechanism for testing, each rotary conveying disk having a first pulley securely joined to a shaft thereof, the transmission device for the rotary conveying disks including (a) a step-by-step motor having a second pulley, (b) a first timing belt being passed over the first pulley of a first one of the conveying disks and the second pulley, (c) a timing gear securely joined to a tail end of the shaft of the first conveying disk and engaging a spur gear joined to a subsidiary shaft, (d) a third pulley being secured to the subsidiary shaft; a second timing belt being passed over the third pulley and the first pulley of a second one of the conveying disks.