A milling tool holder with differential screw

Details A milling tool holder with differential screw A milling tool holder with differential screw

B - Operations, Transporting

23

C

B23C 5/26 (2006.01) B23C 1/00 (2006.01) B23C 5/00 (2006.01)

Patent

CA 2466774

A milling tool holder having a spindle with a tapered opening and a tool holder having a tapered shank that fits into the spindle opening. The narrow end of the shank has a split collar. The spindle is joined to the tool holder by inserting the shank into the tapered opening and drawing the two components together using a differential screw. When the differential screw is turned in one direction, the two components are drawn together, and when turned in the opposite direction, the two components are separated. As the shank bottoms in the tapered opening, an annular enlargement on the differential screw expands the split collar of the shank to tightly seat the shank in the spindle.

Porte-outil de fraisage muni d'une bielle comportant une ouverture conique et un porte-outil muni d'une tige qui s'ajuste dans l'ouverture de la bielle. Le bout étroit de la tige comporte une bague fendue. La bielle est raccordée au porte-outil en insérant la tige dans l'ouverture conique et en fixant ensemble ces deux éléments à l'aide d'une vis à filets différentiels. Lorsqu'on fait tourner cette vis dans une direction, ces deux éléments se rapprochent l'un de l'autre, mais s'éloignent lorsqu'on fait tourner la vis dans la direction opposée. Lorsque la tige s'enfonce dans l'ouverture conique, les deux éléments sont séparés. € mesure que la tige s'enfonce dans l'ouverture conique, un élément d'agrandissement de la vis à filets différentiels élargit la bague fendue de la tige pour fixer étroitement la tige dans la bielle.

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