Registration mechanism and method

Abstract

A registration mechanism has a datum unit and a bolster movable toward and away from the datum unit. First, second, and third pins are mounted to the bolster. At least one spring resiliently biases the pins outward from the bolster. A pallet is supported by the pins between the bolster and datum unit. The pallet has first, second, and third sockets aligned with respective pins. The pallet has a registering face facing the datum unit. The registering face is disposed opposite the sockets. The pallet is movable by the bolster toward the datum unit from a lowered position. In the lowered position, the registering face is spaced from the datum unit and respective pins and sockets are spaced apart. In a first intermediate position, the registering face is spaced from the datum unit, and the sockets rest freely on respective pins. In a second intermediate position, respective sockets and pins are pressed together in partial counteraction of the resilient biasing. In a raised position, the registering face and datum unit are a clamped together and the sockets are immobilized relative to the pins.