Tap Holder
AssigneeDaishowa Seiki Co., Ltd.
InventorsTsuyoshi Komine, Hirokazu Suruga
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Abstract
It is an object of the invention to provide a tap holder in which even when an error is brought about in synchronizing spindle feeding and rotation of a tapper body and a tap collet of a tap holder in correspondence with a machine tool spindle, the synchronization can be established by absorbing the error by a simple constitution. As means therefor, the tap holder is characterized in that a tapper body and a tap collet are inserted by a locking member at portions of the tapper body and the tap collet overlapping each other, and the tap collet is fixed to the tapper body by engaging the locking member with at least one of the tap collet and the tapper body in a state of being interposed with an elastic member on both sides thereof in an axial direction X.
Claims11
A tap holder including a tap collet for chucking a tap at one end thereof, comprising:
- a tapper body for receiving an outer face side of other end of the tap collet in an axial direction to fix unrotatably, and attached to a machine tool having a tap synchronizingly feeding mechanism;
- the tap collet inserting the tapper body,
- a locking member being inserted through the tap collet and the tapper body at portions of the tap collet and the tapper body overlapping each other;
- and wherein the locking member engages the tap collet and the tapper body in a state of interposing an elastic member on both sides in an axial direction between the locking member and at least one of the tap collet and the tapper body.
Dependencies are inferred from the claim text.