Rotating tool

• US 8,950,985 B2
• Filed: 02/26/2010
• Issued: 02/10/2015
• Est. Priority Date: 03/03/2009
• Status: Active Grant

• Current Assignee: Seco Tools AB (Sandvik AB)
• Original Assignee: Seco Tools AB (Sandvik AB)
• Inventors: Durand-Terrasson, Alain
• Primary Examiner(s): Gates, Eric A
• Assistant Examiner(s): RUFO, RYAN C
• Application Number:
  US13/202,793
• Publication Number:
  US 20120251254A1
• Time in Patent Office: 1,810 Days
• Field of Search: 408/227, 408/713, 408/186, 408/188, 408/197, 408/198, 408/200, 408/150, 408/164, 606/79, 606/80, 407/51, 407/59, 407/37, 407/45, 144/92, 144/93.1, 144/93.2, 144 96-100, 144/103, 144/106, 144/108, 144/219, 144/220, 144/230, 144/234, 144/235
• US Class Current: 408/227
• CPC Class Codes: B23B 29/02 Boring bars
• CPC Class Codes: B23B 41/02 for boring deep holes; Trepanning, e.g. of gun or rifle barrels
• CPC Class Codes: B23D 2277/02 Cutting head and shank made from two different components which are releasably or non-releasably attached to each other
• CPC Class Codes: B23D 2277/2471 Steel
• CPC Class Codes: B23D 2277/46 Guiding pads
• CPC Class Codes: B23D 77/006 with means for lubricating or cooling
• CPC Class Codes: B23D 77/04 with cutting edges adjustable to different diameters along the whole cutting length
• CPC Class Codes: Y10S 408/713 Tool having detachable cutting edge
• CPC Class Codes: Y10T 408/5583 Engaging sides of opening being enlarged by Tool
• CPC Class Codes: Y10T 408/86 Tool-support with means to permit positioning of the Tool relative to support
• CPC Class Codes: Y10T 408/909 Having peripherally spaced cutting edges

Abstract

A rotating tool includes a plurality of elongated members, a cutting edge extending from at least one of the elongated members. A support is attached to each of the elongated members for holding the elongated members at a distance relative to an axis of rotation of the tool. A guiding pad extends radially outwardly from the axis relative to at least one of the elongated members. The tool is particularly useful for reaming operations in which it can be useful to have a tool with a large diameter and/or length.

Claims

1. A rotating tool, comprising:

a plurality of elongated members, a cutting edge extending from at least one of the elongated members; and

a support attached to each of the elongated members for holding the elongated members at a distance relative to an axis of rotation of the tool so that the elongated members are disposed at respective positions on a circle around the axis, wherein a guiding pad arranged to facilitate guiding the tool in a hole being formed by the tool extends radially outwardly from the axis relative to at least one of the elongated members, wherein the support comprises a first disk to which first ends of the plurality of elongated members are attached and a second disk to which second ends of the plurality of elongated members are attached, the first and second disk having a plurality of axially extending openings in which the first and second ends, respectively, of the plurality of elongated members are received, wherein the cutting edge is formed on a removable cutting insert that is removably mounted to the at least one of the elongated members.

2. The rotating tool as set forth in claim 1, wherein the support comprises at least one intermediate disk between the first and second disks, the at least one intermediate disk comprising openings through which the plurality of elongated members extend.

3. The rotating tool as set forth in claim 1, wherein the cutting edge extends axially from a forward end of at least one of the elongated members.

4. The rotating tool as set forth in claim 3, wherein the plurality of openings in at least one of the first and the second disk extend from a first side of the disk to a second side of the disk, each elongated member extending through a corresponding one of the openings.

5. The rotating tool as set forth in claim 4, comprising a recess in the disk in front of the cutting edge in a direction of rotation of the rotating tool.

6. The rotating tool as set forth in claim 1, wherein the cutting edge extends radially from a side of at least one of the elongated members.

7. A rotating tool, comprising:

a plurality of elongated members, a cutting edge extending from at least one of the elongated members; and

a support attached to each of the elongated members for holding the elongated members at a distance relative to an axis of rotation of the tool so that the elongated members are disposed at respective positions on a circle around the axis, wherein a guiding pad arranged to facilitate guiding the tool in a hole being formed by the tool extends radially outwardly from the axis relative to at least one of the elongated members, wherein the support comprises a first disk to which first ends of the plurality of elongated members are attached and a second disk to which second ends of the plurality of elongated members are attached, the first and second disk having a plurality of axially extending openings in which the first and second ends, respectively, of the plurality of elongated members are received, wherein the cutting edge is formed on a removable cutting insert that is mounted to the at least one of the elongated members, wherein the support comprises a disk having a plurality of radial openings, each of the radial openings being open to a radial edge of the disk, and wherein a pad extends outwardly from each radial opening beyond a circumferential surface of the disk.

8. A rotating tool, comprising:

a plurality of elongated members, a cutting edge extending from at least one of the elongated members; and

a support attached to each of the elongated members for holding the elongated members at a distance relative to an axis of rotation of the tool so that the elongated members are disposed at respective positions on a circle around the axis, wherein a guiding pad arranged to facilitate guiding the tool in a hole being formed by the tool extends radially outwardly from the axis relative to at least one of the elongated members, wherein the support comprises a first disk to which first ends of the plurality of elongated members are attached and a second disk to which second ends of the plurality of elongated members are attached, the first and second disk having a plurality of axially extending openings in which the first and second ends, respectively, of the plurality of elongated members are received, wherein the cutting edge is formed on a removable cutting insert that is mounted to the at least one of the elongated members, wherein at least one of the elongated members comprises an internal passage.

9. The rotating tool as set forth in claim 8, wherein a channel extends from the internal passage to an exterior of the at least one of the elongated members proximate a cutting edge on the at least one of the elongated members.

10. The rotating tool as set forth in claim 8, wherein a channel extends from the internal passage to an exterior of the at least one of the elongated members proximate a guiding pad on the at least one of the elongated members.