Abstract: An apparatus for and method of utilizing vacuum in machine tool operations utilizes vacuum, rather than clamps and fixtures, to secure the work piece to the table of the machine tool. The apparatus employs a plurality of vacuum buttons arranged on a vacuum plate or a configurable vacuum plate. This system minimizes the downtime for machine tools by permitting the set up for a particular machining operation or series of operations to be conducted off line. That is, the set up for one operation is primarily made while the machine tool is performing another operation or series of operations on another work piece. The machine tool continues to operate producing one machined, useful product while the set up for a second product is being performed. The use of a plurality of vacuum buttons arranged on a vacuum plate allows the flexibility to accommodate a variety of different work pieces.

Abstract: Apparatus and a method for assembling a stack having a precise height from a plurality of individual laminates having varying thicknesses are disclosed. In a preferred embodiment, the apparatus comprises seven colinearly aligned dispensing stations for storing a stack of laminates and for dispensing a predetermined number of laminates from the first six stations and a variable number of laminates in the last seventh station; three walking beam assemblies for transporting the plates between the dispensing stations, and a means for controlling the number of laminates dispensed by the last, seventh dispensing station. The controlling means comprises a vertically extending engaging block resiliently mounted on the third walking beam for engaging the laminates to be dispensed and a resiliently mounted cut-off blade depending into and varying the height of a slot located at the bottom of the stored stack of laminates in the last dispensing station.