Die actuator |
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| 申请号 | US3710410D | 申请日 | 1971-09-07 | 公开(公告)号 | US3710410A | 公开(公告)日 | 1973-01-16 |
| 申请人 | NEW WAY PROD CO; | 发明人 | ANDREASEN A; | ||||
| 摘要 | A die actuator for moving an operating lever of a threading die on automatic screw machines, and the like, having a turrethead indexable through a plurality of different work positions and slidable along a work axis toward and away from the workpiece. The die actuator comprises a base which is fixedly secured to the bed of the automatic screw machine and defines vertical guide means. An actuator slide is mounted for vertical sliding movement on the base in said guide means between an elevated, upper position and lower, rest position. Lift means extends outwardly of the slide into the path of travel of the operating lever on the threading die as the die moves during indexing of the turret. ENgagement between the lift means and the die operating lever during turret indexing causes the lever to close the die and move the thread chasers into position ready for cutting threads on a workpiece. When the head is subsequently moved forward toward the workpiece, the operating lever moves out from under said lift means and the actuator slide drops downwardly to the rest position out of the way of the turrethead and any of the other tools mounted thereon. | ||||||
| 权利要求 | 1. A die actuator for moving the operator of a threading die mounted on the tool supporting head of an automatic screw machine wherein said head is movable toward and away from a workpiece in an axially aligned direction and is indexed in a plurality of different work positions about an index axis laterally transverse of said axial direction, said actuator comprising a base adapted to be rigidly secured to said machine and defining vertical guide means, an actuator slide mounted for vertical sliding movement on said base in engagement with said guide means between an elevated position and a lower rest position, and lift means extending outwardly of said slide into the upward path of travel of said die operator for slideably lifting said slide on said base when said head is indexed to a different work position while away from said workpiece, said lift means dimensioned to become disengaged from said die operator after closing said die upon travel of said head toward said workpiece. 2. The die actuator of claim 1 wherein said lift means is engageable with said guide means to limit downward travel thereof upon dropping out of engagement with said die operator toward said rest position. 3. The die actuator of claim 1 including stop means cooperating with said guide means for limiting the upward movement of said lift means while engaged and lifted by said die operator during indexing of said head and engagement of said lift means by said die operator. 4. The die actuator of claim 1 wherein said lift means is sloped upwardly toward said workpiece for lowering said slide toward said rest position on forward travel of said head. 5. The die actuator of claim 4 wherein said lift means is tapered from a maximum width away from said slide and workpiece to a minimum width away from said slide toward said workpiece. 6. The actuator of claim 3 wherein said stop means limits upward travel of the outer end of said die operator before a selected indexing step of said head is completed, thereby causing relative movement between said die operator and said threading die during completion of said selected step. |
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