B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
26/174
B21D 9/14 (2006.01) B21D 15/02 (2006.01) B21D 53/28 (2006.01)
Patent
CA 1093287
P-313 MACHINE FOR SPLINING THIN-WALLED POWER TRANSMISSION MEMBERS ABSTRACT OF THE DISCLOSURE The machine disclosed includes apparatus for splining thin-walled sleeves of power transmission members that are mounted on a toothed mandrel between a pair of toothed dies by an automatic loader which also removes the members from the man- drel after the splining. Loading and unloading members of the loader are moved axially along the axis of mandrel rotation by associated actuating cylinders to move members to be splined from an indexer onto the mandrel and to move the members after splining from the mandrel back to the indexer. Clamping surfaces on the end of the mandrel and a rotatable clamp of the loading member position the sleeve of a member being splined over the mandrel teeth. The unloading member is received within a central opening of the mandrel and has an annular centering surface that properly locates the member being splined. Antifriction thrust bearings are utilized to connect the rotatable clamp to the axially movable loading member and to connect a rotatable shaft of the unloading member to a coupling member that is connected to the associated actuating cylinder. An antifriction spindle assembly has a rotat- able spindle that mounts the mandrel with aligned openings of the mandrel and the spindle receiving the unloading member for axial movement during loading and unloading. In one preferred embodi- ment, the toothed dies comprise straight racks that are slidably movable on opposite sides of the mandrel with one of the racks fixed to a timing rack which meshes with a timing gear on the spindle to coordinate the mandrel rotation with rack movement. In another preferred embodiment, the toothed forming faces of the dies are curved. Tool mounts rotatably support the curved dies and are driven by a drive mechanism that also drives the P-313 spindle on which the mandrel is mounted with the unloading member extending through the spindle and the mandrel to move axially during loading and unloading. A differential of the drive mechan- ism provides the driving of the spindle in coordination with the driving of the tool mounts while allowing timing adjustment of the mandrel when required.
318920
Anderson-Cook Inc.
Smart & Biggar
LandOfFree
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