Patent ID: 7694545
Filing Date: 2010-04-13
Classification: B30B

Abstract:
1. An apparatus for correcting slide parallelisms in a mechanical press, said mechanical press having a slide, said press comprising a rotatable crankshaft; at least one eccentric crankshaft member rotatably driven by said rotatable crankshaft; and at least one press connection member each disposed in operative driving connection with a respective said eccentric crankshaft member and said slide, said apparatus comprising: a device for measuring slide parallelism and providing measurement data representative thereof; an eccentric controller for selectably changing a position of at least one of said at least one eccentric crankshaft member relative to a respectively associated press connection member, according to the measurement data provided by said device; and at least one eccentric bushing each disposed about a respective said eccentric member to define a respective interface therebetween, each said eccentric bushing and said associated eccentric member being releasably connectable with one another, each said eccentric bushing being normally operatively arranged in a press-fit connection with said associated eccentric member, wherein the slide parallelism being a measure of the difference in bushing slip angle associated with each of a left-hand side and a right-hand side of at least one said eccentric bushing.