Device for securing dies on threading machines
AssigneeSuper-Ego Tools, S.A.
InventorManuel Azkona-Ollacarizqueta
Life of this patent
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Abstract
The device uses a diaphragm cover between the adapter and the die to lock the die into the adapter. The cover is rotatably mounted onto the adapter and has a polygonal bore that matches the polygonal bore of the adapter. The mandrel of the die has a throat in which the cover sits when the cover is in the locked position. The cover is biased with a spring into the locked position. Stops are provided to limit the movement of the cover between the open and closed positions.
Claims5
A device for securing a threaded die to an adapter of a threading machine wherein the adapter has a polygonal bore and said die has a polygonally shaped mandrel such that the polygonal bore of said adapter mates with the polygonally shaped mandrel of said die, said die having a throat which has a diameter smaller than the diameter of the mandrel, said device comprising:
- (a) a rotatable diaphragm cover coaxially mounted at one end of said adapter, said diaphragm cover having a polygonal bore therein, said polygonal bore being coaxial with said polygonal bore of said adapter, said polygonal bore of said cover having dimensions substantially identical to said polygonal bore of said adapter, said cover being rotatable between a closed position wherein said polygonal bore of said cover is engaged in the said throat of the die whereby said die is held in said adapter, and an open position wherein said polygonal bore of said cover is not engaged in the said throat of the die whereby said mandrel of said die can be inserted into or removed from said adapter;
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- (b) spring means selected from the group consisting of compression springs and tension springs biased to maintain said cover in said closed position, said spring means being connected at one end to said adapter and at the other end to said cover.
Dependencies are inferred from the claim text.