Importance

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Abstract

In an automatic apparatus including a frame defining a work axis relative to a workpiece held in position relative to the frame, a transfer assembly on the frame and operatively associated with a machine tool for moving the machine tool into and out of positional alignment with the work axis, and a coldworking tool carried by the transfer assembly and defining a coldworking tool axis that is spaced from the axis of the tool. The coldworking tool is movable into an operative position with the axis thereof being coincident with the work axis when the transfer assembly moves the machine tool out of positional alignment with the work axis whereupon the coldworking tool is then axially movable along the work axis and into and out of a hole provided in the workpiece for coldworking the same. A fluid delivery assembly is on the frame and connected to a source of fluid used by the coldworking tool. The coldworking tool has a fluid port for receiving fluid comprising lubricant and coolant when the coldworking tool is out of alignment with the work axis and as part of the workpiece operation cycle of the apparatus. There is also provided a coldworking tool assembly having a transducer for monitoring the distance travelled by the mandrel thereof so that the amount of mandrel travel can be controlled to accommodate variations in machine tooling which contacts the workpiece and therefore avoid the mandrel tip impacting the tooling.

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First Claim