Tool head for machine-tools with unbalance damping

A tool head for use in machine tools, having a basic body (10) rotatable about a rotation axis (13), having a slide (14) carrying a cutting tool, the slide (14) and cutting tool being adjustable by means of a drive mechanism relative to the basic body (10) along a displacement axis (16) oriented radially with respect to the rotation axis, and having at least two balancing bodies (20) for damping unbalance caused by the radial adjustment of the slide (14) and the cutting tool, at least two of the balancing bodies (20) being provided which project laterally with their center of gravity (28′, 28″) beyond the displacement axis (16) and are pivotable relative to the slide (14) and relative to the basic body (10), characterized in that the centers of gravity (28′, 28″) of the slide (10), fitted with the tool, and of the balancing bodies (20) are arranged essentially at the same axial height with respect to the rotation axis (13), and wherein the balancing bodies are mounted via a pivot bearing fixed relative to the slide such that the balancing bodies (20) are pivotable about a pivot axis (15) fixed relative to the slide (14).

A tool head for use in machine tools, having a basic body (10) rotatable about a rotation axis (13), having a slide (14) carrying a cutting tool, the slide (14) and cutting tool being adjustable by means of a drive mechanism relative to the basic body (10) along a displacement axis (16) oriented radially with respect to the rotation axis, and having at least two balancing bodies (20) for damping unbalance caused by the radial adjustment of the slide (14) and the cutting tool, at least two of the balancing bodies (20) being provided which project laterally with their center of gravity (28′, 28″) beyond the displacement axis (16) and are pivotable relative to the slide (14) and relative to the basic body (10), characterized in that the balancing bodies (20) are mounted so as to be pivotable about a pivot axis (15) fixed relative to the slide (14), and in that the basic body (10) and the balancing bodies (20) have, as positive guide means, toothing parts (60, 62) which intermesh directly or indirectly.

A tool head for use in machine tools, having a basic body (10) rotatable about a rotation axis (13), having a slide (14) carrying a cutting tool, the slide (14) and cutting tool being adjustable by means of a drive mechanism relative to the basic body (10) along a displacement axis (16) oriented radially with respect to the rotation axis, and having at least two balancing bodies (20) for damping unbalance caused by the radial adjustment of the slide (14) and the cutting tool, at least of the two balancing bodies (20) being provided which project laterally with their center of gravity (28′, 28″) beyond the displacement axis (16) and are pivotable relative to the slide (14) and relative to the basic body (10), characterized in that the balancing bodies (20) are mounted so as to be pivotable about a pivot axis (15) fixed relative to the slide (14), and in that the balancing bodies (20), during the radial adjusting operation, are positively guided along at least one guide curve (36, 36′) provided in the vicinity of a housing wall of the basic body, or along at least one guide link (26, 26′) in the form of an elongated hole, said at least one guide curve or said at least one guide link being fixed relative to the basic body, the balancing bodies being positively guided by at least one supporting element (24, 24′) fixed relative to the balancing bodies.

A tool head for use in machine tools, having a basic body (10) rotatable about a rotation axis (13), having a slide (14) carrying a cutting tool, the slide (14) and cutting tool being adjustable by means of a drive mechanism relative to the basic body (10) along a displacement axis (16) oriented radially with respect to the rotation axis, and having at least two balancing bodies (20) for damping unbalance caused by the radial adjustment of the slide (14) and the cutting tool, at least two of the balancing bodies (20) being provided which project laterally with their center of gravity (28′, 28″) beyond the displacement axis (16) and are pivotable relative to the slide (14) and relative to the basic body (10), characterized in that the balancing bodies (20) are mounted so as to be pivotable about a pivot axis (15) fixed relative to the slide (14) and the balancing bodies (20), during the radial adjusting operation, are positively guided along at least one guide curve or link in the form of an elongated hole, fixed relative to the balancing bodies, by at least one supporting element (40) fixed relative to the basic body.

A tool head for use in machine tools, having a basic body (10) rotatable about a rotation axis (13), having a slide (14) carrying a cutting tool, the slide(14) and cutting tool being adjustable by means of a drive mechanism relative to the basic body (10) along a displacement axis (16) oriented radially with respect to the rotation axis, and having at least two balancing bodies (20) for damping unbalance caused by the radial adjustment of the slide (14) and the cutting tool, at least two of the balancing bodies (20) being provided which project laterally with their center of gravity (28′, 28″) beyond the displacement axis (16) and are pivotable relative to the slide (14) and relative to the basic body (10), characterized in that the balancing bodies (20) are mounted so as to be pivotable about a pivot axis (15) fixed relative to the slide (14) and are mounted so as to also be pivotable in a wobble guide (52) with a component of motion axially parallel to the rotation axis.