| 摘要 |
<p>The lower ends of alignment bearing shafts of an upper die member of a tape automated bonding apparatus are modified to include tapered alignment pins (51) each having a tapered surface (55) that is complementary to the tapered interior end (61) of the bore of a respective bushing (41) on a lower die member. The alignment pin serves to guide its associated alignment shaft and a ball bearing sleeve carried thereby into the bushing. In addition, a first set of rails (91) is installed directly beneath a die member actuator, and a second set of rails (93) is installed on the upper die member. The second set of rails slide upon the first set of rails, so that the upper die member effectively mechanically floats on the first set of rails. The lower die member is affixed to a translatable plane, which is driven to an end stop position at the part excision station.</p> |
