Cylinder bore finishing apparatus tilt fixture

In cylinder block finishing apparatus having a transfer line and a series of aligned finishing stations located at spaced points along the transfer line and each of the finishing stations having a servo head for operating a finishing tool and control means for signaling the servo head to selectively position a finishing tool with respect to cylinder bores and to operate the finishing tool within the cylinder bores to remove predetermined stock from the bores the improvement comprising:

• linear locator means engageable with crankshaft bores of an engine block for positioning each of a plurality of engine block types in alignment with the finishing tools when the transfer line has positioned an engine block with respect to a selected one of the finishing stations;
• rotating means located at each of said finishing stations for selectively positioning the engine block types in accordance with the engine block type presented to each of the finishing stations by the transfer line;
• said means including means for controlling the operation of the finishing tools at each of the finishing stations to correspond to the positioning of the engine block produced by said rotating means;
• an advance cylinder for retracting and extending said linear locating means;
• an arm connected to said linear locator means and axially moveable therewith;
• said arm having one end extending outwardly;
• and
• coacting means on said one end of said arm and on one end of a positioned block for connecting the block and said rotating means during positioning movement thereof.

In cylinder block finishing apparatus having a transfer line and a series of aligned finishing stations located at spaced points along the transfer line and each of the finishing stations having a servo head for operating a finishing tool and control means for signaling the servo head to selectively position a finishing tool with respect to cylinder bores and to operate the finishing tool within the cylinder bores to remove predetermined stock from the bores the improvement comprising:

• linear locator means engageable with crankshaft bores of an engine block for positioning each of a plurality of engine block types in alignment with the finishing tools when the transfer line has positioned an engine block with respect to a selected one of the finishing stations;
• rotating means located at each of said finishing stations for selectively positioning the engine block types in accordance with the engine block type presented to each of the finishing stations by the transfer line;
• control means for controlling the operation of the finishing tools at each of the finishing stations to correspond to the positioning of the engine block produced by said rotating means;
• said linear locator means including a slide member adapted to selectively engage end bores of the selected engine block;
• means for locating the finishing tools on a substantially vertical finishing axis, said rotating means including means for tilting engine blocks to a first position to concentrically align cylinder bores of in-line cylinder blocks with the vertical finishing axis, and for tilting engine blocks to other positions to concentrically align cylinder bores of a multiplicity of types of V engine blocks with the vertical finishing axes;
• said control means including means for selectively controlling vertical stroking movement of the finishing tools to correspond to the cylinder bores aligned therewith;
• an advance cylinder for retracting and extending said linear locating means;
• an arm connected to said linear locator means and axially moveable therewith;
• said arm having one end extending outwardly;
• coacting means on said one end of said arm and on one end of a positioned block for connecting the block and said rotating means during positioning movement thereof.

In cylinder block finishing apparatus for finishing a plurality of engine block types, the apparatus having a spindle drive for a servo head driven finishing tool and controls for operating the spindle drive to selectively position finishing tools and operate them within a cylinder bore to remove predetermined stock from the cylinder bore, the improvement comprising:

• means defining a transfer line for carrying a plurality of engine blocks and for moving each of the engine blocks along a predetermined linear path relative to a plurality of finishing stations each having a servo head driven finishing tool;
• positioning means located at each of the plurality of finishing stations for positioning an engine block with respect to said finishing tools to align them with the cylinder bores of the engine block operatively positioned at a given one of the plurality of finishing stations;
• said positioning means including linear locator means directed transversely of the predetermined linear path for positioning each of a plurality of engine block types in alignment with the finishing tools when the transfer line has positioned an engine block with respect to a selected one of the finishing stations;
• and
• rotating means for selectively tilting the engine block types in accordance with the engine block type aligned with each of the finishing tools.

In cylinder block finishing apparatus having a spindle drive for a finishing tool and controls for operating the spindle drive to selectively position finishing tools and operate them within a cylinder bore to remove predetermined stock from the cylinder bore, the improvement comprising:

• linear locator means engageable with an engine block crankshaft bore for positioning each of a plurality of engine block types into alignment with the finishing tools;
• rotating means for selectively tilting the engine block types in accordance with the engine block type aligned with the finishing tool;
• an advance cylinder for retracting and extending said linear locator means;
• said rotating means including an arm member having one end connected to said linear locator means and moveable therewith into engagement with a block.