| 摘要 |
AN APPARATUS FOR MANUFACTURING A COMBINED NUT AND UNIT INCLUDES A RECIPROCATING PUSH ROD (8) JOURNALLED IN A FIXED SEAT (4) ON A MACHINE BASE (30). THE OUTLET END OF THE FIXED SEAT (4) HAS A POSITIONING BLOCK (48) WHICH HAS JUXTAPOSED VERTICAL GROOVES (481, 482) FOR RECEIVING NUTS (1) AND WASHERS (2) RESPECTIVELY THEREIN . THE LOWER PORTION OF THE POSITIONING BLOCK (48) HAS A TRANSVERSE THROUGH HOLE (483). TWO PAIRS OF CLAMPING ARMS (520, 530) ARE MOUNTED AT TWO OPPOSED SIDES OF THE POSITIONING BLOCK (48) IN ORDER TO POSITION THE NUT (1) AND THE WASHER (2) IN THE LOWER ENDS OF THE VERTICAL GROOVES (481, 482) IN A CONCENTRIC MANNER. THE APPARATUS FURTHER HAS AN UPPER HANGING MECHANISM WHICH INCLUDES A CANTILEVER (330) WHICH CAN EXTEND INTO AND DISENGAGE FROM THE POSITIONING BLOCK (48) IN ORDER TO RETAIN AND RELEASE A NUT (1). IN ADDITION, THE APPARATUS HAS A LOWER LIFTING MECHANISM WHICH HAS A LIFT ROD THAT CAN PUSH THE LOWEST ONE OF THE NUTS (1) IN THE VERTICAL GROOVE (481) TO BE CONCENTRIC WITH THE LOWEST ONE OF THE WASHERS (2) IN THE VERTICAL GROOVE (482). (FIG 3)
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