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US 11,278,969 B2Granted
Collet chuck
AssigneeFranz Haimer Maschinenbau KG
InventorFranz Haimer
Life of this patent
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Abstract
The invention relates to a collet chuck (1) for clamping a preferably cylindrical tool shank with a chuck body (2) of a collet (3) and an union nut (4), which are matched in such a way that the collet (3) can be driven into the chuck body (2) by tightening the union nut (4) such that it secures the tool shank in the collet chuck (1) ready for operation, wherein the collet (3) and the union nut (4) are permanently connected to one another and at the same time connected in a rotatable manner relative to one another.
Claims40
A collet chuck for chucking a cylindrical tool shaft comprising:
- a chuck body, a receiving sleeve with a cylindrical bore, which is oriented on the diameter of the tool shaft that is to be chucked for including the tool in a nonpositive, frictional way, and a screw cap, which are matched to one another in such a way that by tightening the screw cap, the receiving sleeve can be driven into the chuck body so that it fixes the tool shaft in the collet chuck in a ready-to-operate fashion, the receiving sleeve being one-piece, the screw cap being one-piece, wherein the receiving sleeve and the screw cap are directly and permanently connected to each other and at the same time, are able to rotate relative to each other,
- wherein the receiving sleeve and the screw cap are supported against each other in rotary fashion by rolling elements, which each roll against the receiving sleeve and the screw cap, wherein the collet chuck has a set of rolling elements in a V-shaped arrangement whose rolling elements are arranged so that the orthogonals to the rotational axes of the rolling elements only intersect with the chuck longitudinal axis of the chuck body on the inside of the chuck body.
A collet chuck for chucking a cylindrical tool shaft comprising:
- a chuck body, a receiving sleeve, and a screw cap, which are matched to one another in such a way that by tightening the screw cap, the receiving sleeve can be driven into the chuck body so that the tool shaft is fixed in the collet chuck in a ready-to-operate fashion, wherein the receiving sleeve and screw cap are permanently connected to each other and at the same time, are able to rotate relative to each other;
- wherein in a region between an external thread of the chuck body for screwing on the screw cap and a chuck body end oriented toward the screw cap, an outer diameter of the chuck body tapers toward said chuck body end.
A collet chuck for chucking a cylindrical tool shaft comprising:
- a chuck body, a receiving sleeve, and a screw cap, which are matched to one another in such a way that by tightening the screw cap, the receiving sleeve can be driven into the chuck body so that the tool shaft fixed in the collet chuck in a ready-to-operate fashion, wherein the receiving sleeve and screw cap are permanently connected to each other and at the same time, are able to rotate relative to each other;
- wherein the receiving sleeve has a form-fitting pull-out prevention element which can interact with a complementary pull-out prevention element on the tool shaft, thus providing a pull-out prevention for the tool.
A tool-chucking system, comprising:
- a collet chuck for chucking a cylindrical tool shaft having a chuck body, and at least two receiving sleeve assemblies composed of a receiving sleeve and a screw cap that are permanently connected to each other and at the same time, are able to rotate relative to each other;
- wherein the chuck body and the receiving sleeve assemblies are matched to one another in such a way that by tightening the screw cap, the receiving sleeve can be driven into the chuck body so that the tool shaft is fixed in the collet chuck in a ready-to operate fashion;
- wherein the receiving sleeve assemblies have receiving sleeves whose tool-chucking regions have different inner diameters.
A collet chuck for chucking a cylindrical tool shaft comprising:
- a chuck body, a receiving sleeve with a cylindrical bore, which is oriented on the diameter of the tool shaft that is to be chucked for including the tool in a nonpositive, frictional way, and a screw cap, which are matched to one another in such a way that by tightening the screw cap, the receiving sleeve can be driven into the chuck body so that it fixes the tool shaft in the collet chuck in a ready-to-operate fashion, the receiving sleeve being one-piece, the screw cap being one-piece, wherein the receiving sleeve and the screw cap are directly and permanently connected to each other and at the same time, are able to rotate relative to each other,
- wherein the receiving sleeve and the screw cap are supported against each other in rotary fashion by rolling elements, which each roll against the receiving sleeve and the screw cap, wherein:
- the collet chuck has a set of rolling elements in a V-shaped arrangement whose rolling elements are arranged so that the orthogonals to the rotational axes of the rolling elements only intersect with the chuck longitudinal axis of the chuck body on the inside of the chuck body, and
- the collet chuck has a set of rolling elements in a V-shaped arrangement whose rolling elements are arranged so that the orthogonals to the rotational axes of the rolling elements only intersect with the longitudinal axis of the chuck body on the outside of the chuck body.
1 more element
Dependencies are inferred from the claim text.