摘要:
A rotary bending tool (10) having a series of graphite plugs (34) mounted in a saddle recess engaging a rocker (12) surface to lubricate the same. The rocker (12) is machined in an unhardened state and thereafter heat treated to be hardened, with reverse bending of the rocker (12) thereafter carried out to correct any warpage.
摘要:
A servo motor (24;68) driven tapping unit (20) for in die installation has a tap holder pitch adapter assembly mounted for removal while the unit is in the die (10) to facilitate tap (50;66) and pitch adapter (58,60;82,86) replacement. In one embodiment, the tap holder pitch adapter assembly extends transversely to the servo motor axis, and is offset in another embodiment.
摘要:
A servo motor (24;68) driven tapping unit (20) for in die installation has a tap holder pitch adapter assembly mounted for removal while the unit is in the die (10) to facilitate tap (50;66) and pitch adapter (58,60;82,86) replacement. In one embodiment, the tap holder pitch adapter assembly extends transversely to the servo motor axis, and is offset in another embodiment.
摘要:
An in-die tapping unit for a press in which two ball screw mechanisms (28) are driven by closing motion between two housing pieces (12,14) caused by press actuation. Both ball screw mechanisms (28) rotate a central drive gear (44) which causes rotation and axial advance of a pitch adapter sleeve (64) axially advanced by a threaded engagement with a fixed pitch adapter hub (66), the movable pitch adapter carrying a tap holder (74), which rotates and advances a tap (68) inserted therein. A striker pad (46) and acceleration spring (52) reduces the shock loading of the unit when the press engages the upper housing piece (12).