Metal working – Plural diverse manufacturing apparatus including means for... – Attachment
Patent
1981-12-31
1983-11-22
Bilinsky, Z. R.
Metal working
Plural diverse manufacturing apparatus including means for...
Attachment
409235, 29239, 29256, 29463, 294011, B23B 4726, B23B 102, B23Q 310
Patent
active
044160429
ABSTRACT:
The ram of a vertical milling machine is raised up from the machine base and then secured thereto in a raised position to accommodate a workpiece having a vertical dimension that is greater than the normal vertical clearance between the tool spindle on the ram and the work support table below the spindle. The method involves removing the bolts which mount the ram on the base, threading long guide screws into these bolt holes and supporting an inverted U-shaped bracket on nuts threaded on the guide screws such that the bracket is disposed in an elevated position above the ram. A lift screw is then extended downwardly through the bight portion of the bracket and is threaded into the conventional threaded eye bolt opening on the top side of the ram. Thereafter, a nut is threaded down on the lift screw against the top side of the bight section of the bracket and continued rotation of the nut causes the lift screw to be displaced upwardly to raise the ram as it is guided by the guide screws. After the ram is raised a desired extent, a spacer is placed between the ram and the base and the ram is then lowered by rotating the nut in the opposite direction until the ram rests upon the spacer. Thereafter the guide screws are replaced with the same or longer mounting bolts to again securely mount the ram on the base in a raised position.
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Bilinsky Z. R.
Kline Thomas
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