# US 2014/0196583 A1 · Tool chucking fixture > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0196583 A1 - Document ID: US20140196583A1 - Status: Published application - Kind: A1 - Application number: 13/741,203 - Filed: 2013-01-14 - Published: 2014-07-17 - Earliest claimed: 2013-01-14 - Inventors: Joel Judas - Web page: https://patentgrep.com/patent/US20140196583A1 ## CPC - B23B 29/205: {the tools being adjustable} - Y10T 82/2508: with tool turret - Y10T 82/2572: Attachment - B23B: TURNING; BORING (arrangements for copying or controlling B23Q) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A tool chucking fixture having a tool holder that receives a tool and is intended for insertion into a receptacle of a tool carrier, which tool carrier is embodied with a corresponding receptacle. To compensate for position errors of the tool holder relative to the tool carrier, at least two adjusting elements, located separately from one another and adjustable via associated adjusting means, are provided on the tool holder, while the tool carrier has at least two contact points, associated with the adjusting elements of the tool holder used, at which points the adjusting elements rest with a precise fit. ## Claims ### Claim 1 A tool chucking fixture, having a tool holder that receives a tool and is intended for insertion into a receptacle of a tool carrier, in particular of a lathe, in which the tool holder and the tool carrier have bearing faces associated with one another and devices for securing the tool holder to the tool carrier, and positioning means for positionally precise adjustment of the tool holder relative to the receiving bore are provided, characterized in that the tool holder (3) has at least two adjusting elements (26), guided without play and spaced apart from on another; that at least two contact points (48, 49), associated with the adjusting elements, are embodied on the tool carrier (1), at which contact points, when the tool holder (3) is inserted into the receptacle (4, 5), its adjusting elements rest with a precise fit; and that the adjusting means (38, etc.) on the tool holder (3) are associated with the adjusting elements (26), by which adjusting means the adjusting elements are adjustable in the sense of the dimensionally precise adjustment of the angular position and/or axial position of the tool holder (3) relative to the axis of, the receptacle. ### Claim 2 (depends on 1) The tool chucking fixture of claim 1, characterized in that the length of the adjusting path of the adjusting elements for the positional adjustment of the tool holder (3), which has a shaft (6), lies at least within the assembly play (53) that exists between the shaft (6) of the tool holder and the inner wall of the receiving bore (4) associated with the shaft, and when the tool holder has been inserted, the adjusting elements rest in prestressed fashion on the contact points. ### Claim 3 (depends on 1) The tool chucking fixture of claim 1, characterized in that the contact points are distributed around the axis (50) of the receptacle (4). ### Claim 4 (depends on 1) The tool chucking fixture of claim 1, characterized in that the contact points are embodied on a wall (48; 49) of at least one receiving groove (45, 46) of the tool carrier (1). ### Claim 5 (depends on 4) The tool chucking fixture of claim 4, characterized in that the receiving groove (45, 46) is located extending transversely to the receptacle (4). ### Claim 6 (depends on 4) The tool chucking fixture of claim 4, characterized in that the contact points are embodied on groove walls (48, 49) of two intersecting receiving grooves (45, 46), whose intersecting point is located in the region of the receptacle (4). ### Claim 7 (depends on 5) The tool chucking fixture of claim 5, characterized in that the receiving groove (45, 46) is located with its longitudinal axis (45a; 46a) intersecting the axis (50) of the receptacle (4). ### Claim 8 (depends on 1) The tool chucking fixture of claim 1, characterized in that the contact points are embodied on a wall of a circular-annularly embodied receiving groove (51) of the tool carrier (1). ### Claim 9 (depends on 1) The tool chucking fixture of claim 1, characterized in that it has four adjusting elements (26) in the tool holder (3) and four contact points, associated with them, on the tool carrier (1), which are distributed annularly about the axis of the receptacle (4). ### Claim 10 (depends on 1) The tool chucking fixture of claim 1, characterized in that bearing faces for the adjusting elements (26) are present at the contact points. ### Claim 11 (depends on 1) The tool chucking fixture of claim 1, characterized in that the adjusting elements (26) are guided displaceably in guides (31) of the tool carrier (1), and the adjusting means (38, etc.) are embodied as actuatable from the outside of the tool holder (3). ### Claim 12 (depends on 11) The tool chucking fixture of claim 11, characterized in that the adjusting elements (26) are guided in the tool holder (3) in a manner secured against relative rotation. ### Claim 13 (depends on 11) The tool chucking fixture of claim 11, characterized in that the adjusting elements have a wedge actuated mechanism (33/34), cooperating with the respective adjusting element, by which a displacement (“x”), oriented in the longitudinal direction of the adjusting element (26), of the adjusting element in its guide (31) can be converted into an adjusting motion (“y”), oriented transversely thereto, of at least a part of the adjusting element. ### Claim 14 (depends on 13) The tool chucking fixture of claim 13, characterized in that the adjusting element (26) is prestressed resiliently in its guide (31). ### Claim 15 (depends on 13) The tool chucking fixture of claim 13, characterized in that the (26) is pressed without play against a guide face (33) in its guide by spring means (41). ### Claim 16 (depends on 15) The tool chucking fixture of claim 15, characterized in that the adjusting element (26) is resiliently prestressed by first spring means (26) in its displacement direction and by second spring means (42) against the lateral guide face (33). ### Claim 17 (depends on 11) The tool chucking fixture of claim 11, characterized in that the adjusting element (26) is embodied, at least in a region protruding past the bearing face of the tool holder, as a sliding block, whose dimensions are adapted to the dimensions of an associated receiving groove (45, 46) in the tool carrier (1). ### Claim 18 (depends on 1) The tool chucking fixture of claim 1, characterized in that the adjusting element have an adjusting screw (38) that can be actuated from the outside of the tool holder. ### Claim 19 (depends on 11) The tool chucking fixture of claim 11, characterized in that the adjusting element (26a) is substantially L-shaped. ### Claim 20 (depends on 1) The tool chucking fixture of claim 1, characterized in that the tool holder (3) has a shaft (6), and precentering means (25) are associated with the shaft (6) of the tool holder (3), by which precentering means at least a portion (7) of the shaft can be pressed elastically, unilaterally radially, against the wall of a receiving bore (4, 5), receiving it, in the tool carrier (1). ### Claim 21 (depends on 20) The tool chucking fixture of claim 20, characterized in that the precentering means are formed by an elastic toroidal ring (25), which is received on a bearing face of the shaft (6) that is eccentric to the longitudinal 5 axis of the shaft. ### Claim 22 (depends on 1) The tool chucking fixture of claim 1, characterized in that the tool carrier (1) is part of a tool turret. ### Claim 23 (depends on 1) The tool chucking fixture of claim 1, characterized in that the tool carrier (1) is part of a machine table or is arranged for use on holding or chucking devices on machine tables.