Shut height adjustment means in pressing apparatus
AssigneeAMP Incorporated
InventorAndrew G. Boutcher, Jr.
Life of this patent
Estimating the term…
Abstract
A device for adjusting the shut height of a press includes a rotatable dial (16) interposed between a ram mounting block (6) fixed to a press ram (2), and a tooling ram (14). The dial (16) is keyed to a screw bushing (12) which is rotatable in a screw threaded bore in the block (6) for vertical movement relative to the block (6). Facing surfaces (46 and 48) of the block (6) and the dial (16) are formed with opposed helical ramps (54 and 56, and 58 and 60). The angular position of the dial (16) is adjustable to cause the ramps (54 and 56, and 58 and 60) to cooperate to alter the distance between ramps (2) and 14) to adjust the shut height of the press.
Claims11
In pressing apparatus having a first ram, and a second ram connected thereto in spaced relationship therewith, to drive the first ram along a predetermined path, adjusting means for coupling together and altering the effective spacing between said rams, said adjusting means comprising:
- a ram mounting block fixed to the second ram, and being located between said rams, said block having a screw threaded bore having a longitudinal axis extending lengthwise of said path;
- a screw device in said bore meshing with the threads thereof and being rotatable therein about said axis, for movement relative to said block, lengthwise of said axis, said screw device being connected to said first ram with axial play;
- an adjusting dial keyed to said screw device, for rotation about said axis to move the first and second rams relatively towards and away from each other;
- and
- ramp means acting between said block and said dial, for determining the spacing between said rams in accordance with the angular position of said dial about said axis, said second ram being in force transmitting relationship with said first ram by way of said block and said dial as said first ram is driven by said second ram.
In a pressing apparatus comprising a tooling ram, and a press ram connected thereto in spaced relationship therewith to drive the tooling ram through a working stroke along a predetermined path in cooperation with an anvil, shut height adjusting means for coupling together and altering the spacing between said rams, said adjusting means comprising:
- a ram mounting block fixed to the press ram and being located between the press ram and the tooling ram, and having a screw threaded bore having a longitudinal axis extending lengthwise of said path;
- an externally screw threaded bushing meshing with said threads in said bore and being rotatable relative to said block about a hub, for movement lengthwise of said axis, the hub being connected to each of said rams;
- an annular dial keyed to said bushing, for rotation about said axis, to move said rams relatively towards and away from one another;
- and
- a pair of helical ramps formed on each of facing surfaces of said block and said dial, the ramps of each pair extending about said axis and being arranged in opposed relationship and in rotational symmetry, to act between the block and the dial to determine the effective spacing between said rams in accordance with the angular position of said dial about said axis, the minimum clearance between the ramps of the block and those of the dial being less than the clearance between said hub and said tooling ram.
Dependencies are inferred from the claim text.