Tombstone fixture

Details Tombstone fixture Tombstone fixture

1993-12-01

1995-10-03

Bilinsky, Z. R.

Metal working

Plural diverse manufacturing apparatus including means for...

Binding or covering and cutting

269 63, 408 71, 409218, B23Q 302

Patent

active

054541484

ABSTRACT:
A tombstone style machine tool fixture for machining valve castings having hexagonal flanges on each end and a bonnet intermediate the ends of the castings, the fixture including a column having a number of work stations mounted on the column, each work station including a main support plate, a number of hydraulic cylinder assemblies mounted on said support plate, a clamp plate supported by said hydraulic cylinder assembly for movement between open and closed positions with respect to the main support plate, a locating plate removably mounted on said clamp plate and having a hexagonal notched block mounted on each end of the locating plate for engaging the flanges on the casting and an alignment block mounted on said locating plate intermediate said notched blocks to align the casting in the notched block and a clamp bar mounted on said column for seating the flanges in said notched blocks.

REFERENCES:
patent: 2953069 (1960-09-01), Smith
patent: 3740806 (1973-06-01), Witzigi et al.
patent: 4425530 (1984-04-01), Kindl et al.
patent: 4440530 (1984-04-01), Yamakaye
patent: 5243745 (1993-09-01), Varnau

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