System and apparatus for reboring main bearings
OwnerDonald B. Rottler, David Engnellinventors
Life of this patent
Estimating the term…
Abstract
An engine block reboring system for main bearings in which the block is mounted on a pair of rails extending laterally on a workbed and is rebored by a tool driven by a right-angle drive extension on a vertical boring machine after the position of the block has been adjusted so that the vertical axis of the boring machine spindle and the desired reboring axis are in the same vertical plane, and the proper height for the tool is set for reference, so that the bearings can be rebored by manipulating the spindle vertically and horizontally in said vertical plane with respect to the height reference. Apparatus is provided for initially properly aligning the block and keeping it in aligned position during the reboring operation.
Claims10
Apparatus for supporting an engine block, comprising:
- a first rail having a first upper support surface;
- a second rail arranged in parallel spaced relation to the first rail;
- a vertically adjustable member carried by the second rail and having a second upper support surface higher than the second rail and parallel to said first upper support surface;
- adjusting means for adjusting the elevation of said member from a lowermost position whereat said second upper support surface is lower than the first upper support surface to an elevated position higher than the latter;
- and
- clamping means adjustably mounted on said rails.
Apparatus for supporting an engine block or cradle for an engine block, comprising:
- a rail having an upper track therealong through part of its width and having an upper longitudinally sloping slide face therealong beside the track;
- a wedge member having a sloped bottom face seated on said slide face and having an upper support face, the elevation of which is adjustable by endwise movement of the wedge member relative to the slide face on the rail;
- adjusting means acting between the rail and wedge member for selectively moving the wedge member longitudinally relative to the rail;
- two opposed clamping devices adjustably mounted on said track for gripping therebetween an engine block or cradle seated on said upper support surface of the wedge member;
- and
- hold-down means for locking said clamping devices to the rail at selected locations along the track.
Dependencies are inferred from the claim text.