| 摘要 |
FIELD: mechanical engineering. ^ SUBSTANCE: automatic drilling machine comprises housing, two spindle units with drills, mechanism for clamping article, cam for machine feeding mechanism, feeder, and chute for receiving the finished articles. The two spindle units with drills and mechanism for clamping article are made of single kinematic chain. The chain is arranged along the axis of drilling for permitting co-operation with the cam. The spindle units are built in the bushings spring-loaded with respect to the housing. The mechanism for clamping blanks is made of a guide and clamping bushing spring-loaded with respect to the housing. The feeder is made of a pipe with hole for feeding and removing article under its own weight. The feeder is interposed between the guiding and clamping bushings and is secured to the latter one. The first spindle unit is provided with the stop. The second spindle unit has rod which allows the drills to be spaced. The rigidity of the spring which spring-loads the guiding bushing is lower than that of the spring which spring-loads the bushing which receives the second spindle unit and is higher than that of the spring which spring-loads the pressing bushing. ^ EFFECT: simplified design. ^ 1 dwg |
