Machining bar

A machining bar, including a machining section for machining materials, comprising:

• at least one basic bar body (2, 2a, 2b, 2c, 2d) having a longitudinally oblong-shaped extension, said bar body extending longitudinally along a central bar axis (10, 10a, 10b, 10c, 10d) which extends along said oblong extension, said at least one bar body having ends, with said machining section located between said ends,
• said at least one bar body being assembled from at least two body components, including at least one outer body component (8, 8a, 8b, 8c, 8d) and at least one inner body component (9, 9a, 9b, 9c, 9d),
• said inner body components being located substantially nearer to said bar axis (10, 10a, 10b, 10c, 10d) along a cross-section of said machining section than said at least one outer body component,
• said at least one outer body component (8) having an inner surface (12), and said at least one inner body component (9) having an outer surface (13) surrounded by said inner surface (12),
• said outer and inner body components being substantially fixedly interconnected against reciprocal motions with respect thereto in a circumferential direction around said bar axis (10, 10a, 10b, 10c, 10d),
• said outer surface (13, 13a, 13b, 13c, 13d) of said at least one inner body component (9, 9b, 9c, 9d) having a radially non-symmetric shape along a cross-section of said machining section, and at least one of each of said inner and outer surface (12, 13) directly rigidly interconnecting with the other, and
• for mounting at least one tool unit (7) through the use of force, said means for mounting including a receiving portion for receiving said tool unit (7) therein, said receiving portion being operatively connected to said at least one inner body so that at least a portion of said force is transferred to said at least one inner body unit.

A machining bar, including a machining section for machining materials, comprising:

• at least one basic bar body (2, 2a, 2b, 2c, 2d) having a longitudinally oblong-shaped extension, said bar body extending longitudinally along a central bar axis (10, 10a, 10b, 10c, 10d) which extends along said oblong extension, said at least one bar body having ends, with said machining section located between said ends,
• said at least one bar body being assembled from at least two body components, including at least one outer body component (8, 8a, 8b, 8c, 8d) and at least one inner body component (9, 9a, 9b, 9c, 9d),
• said inner body components being located substantially nearer to said bar axis (10, 10a, 10b, 10c, 10d) along a cross-section of said machining section than said at least one outer body component,
• said at least one outer body component (8) having an inner surface (12), and said at least one inner body component (9) having an outer surface (13) surrounded by said inner surface (12),
• said outer and inner body components being substantially fixedly interconnected against reciprocal motions with respect thereto in a circumferential direction around said bar axis (10, 10a, 10b, 10c, 10d),
• said outer surface (13, 13a, 13b, 13c, 13d) of said at least one inner body component (9, 9b, 9c, 9d) having a radially non-symmetric shape along a cross-section of said machining section, and at least one of each of said inner and outer surface (12, 13) directly rigidly interconnecting with the other, and
• said at least one inner body component (9, 9a, 9b, 9c, 9d) having a larger mass on a side adjacent to said bar axis (10, 10a, 10b, 10c, 10d) remote from an external tool unit (7) than on another side adjacent to said bar axis (10) and facing said tool unit (7).

A machining bar, including a machining section for machining materials, comprising:

• at least one basic bar body (2, 2a, 2b, 2c, 2d) having a longitudinally oblong-shaped extension, said bar body extending longitudinally along a central bar axis (10, 10a, 10b, 10c, 10d) which extends along said oblong extension, said at least one bar body having ends, with said machining section located between said ends,
• said at least one bar body being assembled from at least two body components, including at least one outer body component (8, 8a, 8b, 8c, 8d) and at least one inner body component (9, 9a, 9b, 9c, 9d),
• said inner body components being located substantially nearer to said bar axis (10, 10a, 10b, 10c, 10d) along a cross-section of said machining section than said at least one outer body component,
• said at least one outer body component (8) having an inner surface (12), and said at least one inner body component (9) having an outer surface (13) surrounded by said inner surface (12),
• said outer and inner body components being substantially fixedly interconnected against reciprocal motions with respect thereto in a circumferential direction around said bar axis (10, 10a, 10b, 10c, 10d),
• said outer surface (13, 13a, 13b, 13c, 13d) of said at least one inner body component (9, 9b, 9c, 9d) having a radially non-symmetric shape along a cross-section of said machining section, and at least one of each of said inner and outer surface (12, 13) directly rigidly interconnecting with the other, and
• said at least one inner body component (9, 9a, 9b, 9c, 9d) having portions located on sides adjacent to said bar axis (10, 10a, 10b, 10c, 10d) and directly interconnected by at least one stiffening member, (35, 36, 37), which in cross-section comprises an imaginary extension of at least one of said stiffening member (36, 26, 37), extending substantially through a receiving portion for a tool carrier base (41) and a circumferentially restricted machining zone of a tool unit (7).

A machining bar, including a machining section for machining materials, comprising:

• at least one basic bar body (2, 2a, 2b, 2c, 2d) having a longitudinally oblong-shaped extension, said bar body extending longitudinally along a central bar axis (10, 10a, 10b, 10c, 10d) which extends along said oblong extension, said at least one bar body having ends, with said machining section located between said ends,
• said at least one bar body being assembled from at least two body components, including at least one outer body component (8, 8a, 8b, 8c, 8d) and at least one inner body component (9, 9a, 9b, 9c, 9d),
• said inner body components being located substantially nearer to said bar axis (10, 10a, 10b, 10c, 10d) along a cross-section of said machining section than said at least one outer body component,
• said at least one outer body component (8) having an inner surface (12), and said at least one inner body component (9) having an outer surface (13) surrounded by said inner surface (12),
• said outer and inner body components being substantially fixedly interconnected against reciprocal motions with respect thereto in a circumferential direction around said bar axis (10, 10a, 10b, 10c, 10d),
• said outer surface (13, 13a, 13b, 13c, 13d) of said at least one inner body component (9, 9b, 9c, 9d) having a radially non-symmetric shape along a cross-section of said machining section, and at least one of each of said inner and outer surface (12, 13) directly rigidly interconnecting with the other, and
• said machine bar defining a machine flight circle (34) around said bar axis (10) of a circle radius of at least one tool (44), at least one of said tool (44) in an operating state defining a radial extension radially to said bar axis (10), said circle radius being at the most as large as the sum of a maximum radial extension of said bar body (2) and said radial extension defined by at least one of said tool (44), said circle radius of at least one of said tool being smaller than a sum of said maximum radial extension of said bar body (2) and half said radial extension of said at least one tool (44).

A machining bar, including a machining section for machining materials, comprising:

• at least one basic bar body (2, 2a, 2b, 2c, 2d) having a longitudinally oblong-shaped extension, said bar body extending longitudinally along a central bar axis (10, 10a, 10b, 10c, 10d) which extends along said oblong extension, said at least one bar body having ends, with said machining section located between said ends,
• said at least one bar body being assembled from at least two body components, including at least one outer body component (8, 8a, 8b, 8c, 8d) and at least one inner body component (9, 9a, 9b, 9c, 9d),
• said inner body components being located substantially nearer to said bar axis (10, 10a, 10b, 10c, 10d) along a cross-section of said machining section than said at least one outer body component,
• said at least one outer body component (8) having an inner surface (12), and said at least one inner body component (9) having an outer surface (13) surrounded by said inner surface (12),
• said outer and inner body components being substantially fixedly interconnected against reciprocal motions with respect thereto in a circumferential direction around said bar axis (10, 10a, 10b, 10c, 10d),
• said outer surface (13, 13a, 13b, 13c, 13d) of said at least one inner body component (9, 9b, 9c, 9d) having a radially non-symmetric shape along a cross-section of said machining section, and at least one of each of said inner and outer surface (12, 13) directly rigidly interconnecting with the other, and
• said machine bar defining a machine flight circle (34) around said bar axis (10) of a circle radius of at least one tool (44), at least one of said tool (44) in an operating state defining a radial extension radially to said bar axis (10), said circle radius being at the most as large as the sum of a maximum radial extension of said bar body (2) and said radial extension defined by at least one of said tool (44), said circle radius of at least one of said tool (44) being substantially larger than a largest radial extension of said bar body (2) by a radial extension of a freeing backface of said at least one tool (44).

A machining bar, including a machining section for machining materials, comprising:

• at least one basic bar body (2, 2a, 2b, 2c, 2d) having a longitudinally oblong-shaped extension, said bar body extending longitudinally along a central bar axis (10, 10a, 10b, 10c, 10d) which extends along said oblong extension, said at least one bar body having ends, with said machining section located between said ends,
• said at least one bar body being assembled from at least two body components, including at least one outer body component (8, 8a, 8b, 8c, 8d) and at least one inner body component (9, 9a, 9b, 9c, 9d),
• said inner body components being located substantially nearer to said bar axis (10, 10a, 10b, 10c, 10d) along a cross-section of said machining section than said at least one outer body component,
• said at least one outer body component (8) having an inner surface (12), and said at least one inner body component (9) having an outer surface (13) surrounded by said inner surface (12),
• said outer and inner body components being substantially fixedly interconnected against reciprocal motions with respect thereto in a circumferential direction around said bar axis (10, 10a, 10b, 10c, 10d),
• said outer surface (13, 13a, 13b, 13c, 13d) of said at least one inner body component (9, 9b, 9c, 9d) having a radially symmetric shape along a cross-section of said machining section, and at least one of each of said inner and outer surface (12, 13) directly rigidly interconnecting with the other, and
• at least one of said outer body component (8a) having at least one reception (48) for positively holding at least one tool unit (7a) against motion in a substantially circumferential directions around said bar axis (10a), at least one of said outer body component (8a) having at least one slot-shaped reception depression (48) for receiving at least one of said tool unit (7a) via an interengagement substantially free of motion play.

A machining bar, including a machining section for machining materials, comprising:

• at least one basic bar body (2, 2a, 2b, 2c, 2d) having a longitudinally oblong-shaped extension, said bar body extending longitudinally along a central bar axis (10, 10a, 10b, 10c, 10d) which extends along said oblong extension, said at least one bar body having ends, with said machining section located between said ends,
• said at least one bar body being assembled from at least two body components, including at least one outer body component (8, 8a, 8b, 8c, 8d) and at least one inner body component (9, 9a, 9b, 9c, 9d),
• said inner body components being located substantially nearer to said bar axis (10, 10a, 10b, 10c, 10d) along a cross-section of said machining section than said at least one outer body component,
• said at least one outer body component (8) having an inner surface (12), and said at least one inner body component (9) having an outer surface (13) surrounded by said inner surface (12),
• said outer and inner body components being substantially fixedly interconnected against reciprocal motions with respect thereto in a circumferential direction around said bar axis (10, 10a, 10b, 10c, 10d),
• said outer surface (13, 13a, 13b, 13c, 13d) of said at least one inner body component (9, 9b, 9c, 9d) having a radially non-symmetric shape along a cross-section of said machining section, and at least one of each of said inner and outer surface (12, 13) directly rigidly interconnecting with the other, and
• at least one of said outer body component (8a) providing a pressure resisting wall defining an intermediate member between at least one of two clamping members (28a, 41a) and two supporting members including a tool unit (7a) located on an outside of said pressure resisting wall and a counter member located on an inside of said pressure resisting wall.

A machining bar, including a machining section for machining materials, comprising:

• at least one basic bar body (2, 2a, 2b, 2c, 2d) having a longitudinally oblong-shaped extension, said bar body extending longitudinally along a central bar axis (10, 10a, 10b, 10c, 10d) which extends along said oblong extension, said at least one bar body having ends, with said machining section located between said ends,
• said at least one bar body being assembled from at least two body components, including at least one outer body component (8, 8a, 8b, 8c, 8d) and at least one inner body component (9, 9a, 9b, 9c, 9d),
• said inner body components being located substantially nearer to said bar axis (10, 10a, 10b, 10c, 10d) along a cross-section of said machining section than said at least one outer body component,
• said at least one outer body component (8) having an inner surface (12), and said at least one inner body component (9) having an outer surface (13) surrounded by said inner surface (12),
• said outer and inner body components being substantially fixedly interconnected against reciprocal motions with respect thereto in a circumferential direction around said bar axis (10, 10a, 10b, 10c, 10d),
• said outer surface (13, 13a, 13b, 13c, 13d) of said at least one inner body component (9, 9b, 9c, 9d) having a radially non-symmetric shape along a cross-section of said machining section, and at least one of each of said inner and outer surface (12, 13) directly rigidly interconnecting with the other, and
• said at least one inner body component (9) is part of an oblong rod profile extending throughout said machining bar which is of substantially constant cross-section.

A machining bar, including a machining section for machining materials, comprising:

• at least one basic bar body (2, 2a, 2b, 2c, 2d) having a longitudinally oblong-shaped extension, said bar body extending longitudinally along a central bar axis (10, 10a, 10b, 10c, 10d) which extends along said oblong extension, said at least one bar body having ends, with said machining section located between said ends,
• said at least one bar body being assembled from at least two body components, including at least one outer body component (8, 8a, 8b, 8c, 8d) and at least one inner body component (9, 9a, 9b, 9c, 9d),
• said inner body components being located substantially nearer to said bar axis (10, 10a, 10b, 10c, 10d) along a cross-section of said machining section than said at least one outer body component,
• said at least one outer body component (8) having an inner surface (12), and said at least one inner body component (9) having an outer surface (13) surrounded by said inner surface (12),
• said outer and inner body components being substantially fixedly interconnected against reciprocal motions with respect thereto in a circumferential direction around said bar axis (10, 10a, 10b, 10c, 10d),
• said outer surface (13, 13a, 13b, 13c, 13d) of said at least one inner body component (9, 9b, 9c, 9d) having a radially non-symmetric shape along a cross-section of said machining section, and at least one of each of said inner and outer surface (12, 13) directly rigidly interconnecting with the other, and
• said at least one inner body component (9, 9a, 9b, 9c, 9d) is part of a rod profile which has been manufactured substantially without cutting.

A machining bar, including a machining section for machining materials, comprising:

• at least one basic bar body (2, 2a, 2b, 2c, 2d) having a longitudinally oblong-shaped extension, said bar body extending longitudinally along a central bar axis (10, 10a, 10b, 10c, 10d) which extends along said oblong extension, said at least one bar body having ends, with said machining section located between said ends,
• said at least one bar body being assembled from at least two body components, including at least one outer body component (8, 8a, 8b, 8c, 8d) and at least one inner body component (9, 9a, 9b, 9c, 9d),
• said inner body components being located substantially nearer to said bar axis (10, 10a, 10b, 10c, 10d) along a cross-section of said machining section than said at least one outer body component,
• said at least one outer body component (8) having an inner surface (12), and said at least one inner body component (9) having an outer surface (13) surrounded by said inner surface (12),
• said outer and inner body components being substantially fixedly interconnected against reciprocal motions with respect thereto in a circumferential direction around said bar axis (10, 10a, 10b, 10c, 10d),
• said outer surface (13, 13a, 13b, 13c, 13d) of said at least one inner body component (9, 9b, 9c, 9d) having a radially non-symmetric shape along a cross-section of said machining section of said machining section, and at least one of each of said inner and outer surface (12, 13) directly rigidly interconnecting with the other, and
• at least one of said body components (8, 9b) is provided by an at least partly non-metallic molded body.