TAPE CONTROLLED AUTOMATIC MACHINE, ESPECIALLY FOR PRINTED CIRCUIT BOARDS

摘要

A drilling machine, especially for drilling printed circuit boards wherein the circuit boards to be drilled are mounted on a table over which is positioned a drilling spindle for each circuit board. The drilling spindles are mounted on a carriage which moves in steps at right angles to each other so as to be able to align the spindles with any hole to be drilled in the entire area of the board. A tape controlled circuit is provided which controls the movement of the carriage and the advancing and retracting of the spindles during a drilling operation. Advantageously, the table supporting the boards to be drilled can be shuttled between two opposite end positions so that while one set of boards is being drilled, another set can be mounted on the table preparatory to drilling.