Peripheral cutting tool utilizing stick blades

• US 10,099,300 B2
• Filed: 08/25/2014
• Issued: 10/16/2018
• Est. Priority Date: 09/04/2013
• Status: Active Grant

• Current Assignee: Gleason Works (Gleason)
• Original Assignee: Gleason Works (Gleason)
• Inventors: Stadtfeld, Hermann J., Church, Benjamin D.
• Primary Examiner(s): Addisu, Sara
• Application Number:
  US14/911,055
• Publication Number:
  US 20160175950A1
• Time in Patent Office: 1,513 Days
• CPC Class Codes: B23C 2210/161 Elastically deformable clamping members
• CPC Class Codes: B23C 5/08 Disc-type cutters
• CPC Class Codes: B23C 5/2295 the cutting elements being clamped simultaneously
• CPC Class Codes: B23F 21/106 in exchangeable arrangement
• CPC Class Codes: B23F 21/146 in exchangeable arrangement

Abstract

A low profile peripheral cutter (18) with stick blades (6). The cutter has a cutter body (30) and a flexible clamping disk (20) to clamp all blades. The flexible clamping disc includes a slot (24) between each cutting blade (6) in order to provide a plurality of blade clamping web wings (26) each of which acts like a deflection beam to hold the blades in position. Preferably, each web wing (26) covers one stick blade (6) and each web wing has two contacting pads (36, 38) to press each blade into its seating surface (44, 46) thereby holding the blade in position.

Claims

1. A clamping arrangement for a cutting tool in which one or more cutting blades are positionable, said clamping arrangement comprising a flexible clamping disk in combination with a cutter body, said clamping arrangement being rotatable about an axis or rotation, said flexible clamping disk comprising:

an outer surface, an inner surface, a periphery and a center, said axis of rotation extending through said center, said inner surface of the clamping disk facing an inner surface of the cutter body,

a plurality of slots spaced about the clamping disk and extending inwardly from said periphery, said plurality of slots defining a plurality of clamping web wings with a single clamping web wing being defined between two successive slots.

2. The clamping arrangement of claim 1 further including one or more openings for clamping screws spaced about said center.

3. The clamping arrangement of claim 1 wherein the inner surface of each web wing includes one or more contacting pads.

4. The clamping arrangement of claim 1 wherein each of said slots have a length equal to about 50 percent of the radius of the clamping disk.

5. The clamping arrangement of claim 1 wherein the inner surface of each web wing includes a cutting blade seating surface.

6. The clamping arrangement of claim 1 wherein each web wing is of a size and orientation to clamp a single cutting blade.

7. The clamping arrangement of claim 1 wherein said cutter body comprises at least one cutting blade seating surface arranged in its inner surface at a predetermined orientation and wherein said slots of said clamping disk are arranged at the same orientation.

8. The clamping arrangement of claim 7 further comprising at least one cutting blade positioned in said at least one seating surface and clamped by said clamping disk.

9. The clamping arrangement of claim 8 wherein said at least one cutting blade includes a front face with said front face being oriented in a direction facing outward from said outer surface of said clamping disk.

10. The clamping arrangement of claim 8 wherein said at least one cutting blade includes a front face with said front face being oriented in a direction generally tangential with respect to said outer surface of said clamping disk.

11. The clamping arrangement of claim 8 wherein the inner surface of each web wing includes two contacting pads and wherein each web wing is capable of deflecting during clamping whereby said two contacting pads sequentially contact said at least one cutting blade.

12. The clamping arrangement of claim 11 wherein said cutting blade includes an outer surface facing away from the clamping disk in the direction of said axis of rotation, and wherein a portion of the outer surface of said web wing between said two contacting pads is located whereby a tangent to said outer surface of said cutting blade does not contact said portion of said web wing.

13. The clamping arrangement of claim 7 wherein said at least one seating surface of said cutter body includes a pair of angled seating surfaces oriented non-perpendicular with respect to one another.

14. The clamping arrangement of claim 1 wherein said cutter body includes a jack screw aligned with and capable of contacting and moving each web wing thereby enabling movement of a cutting blade.