US 12,064,823 B2
Milling tool having a replaceable cutting ring
Frank Schmid, Deizisau (DE); and Karl-Heinz Edelmann, Ehningen (DE)
Assigned to Komet Deutschland Gmbh, Besigheim (DE)
Filed by KOMET DEUTSCHLAND GMBH, Besigheim (DE)
Filed on Nov. 25, 2019, as Appl. No. 16/694,554.
Application 16/694,554 is a continuation of application No. PCT/EP2018/064893, filed on Jun. 6, 2018.
Claims priority of application No. 10 2017 112 374.1 (DE), filed on Jun. 6, 2017.
Prior Publication US 2020/0086404 A1, Mar. 19, 2020
Int. Cl. B23C 5/28 (2006.01); B23C 5/06 (2006.01); B23Q 11/10 (2006.01)
CPC B23C 5/28 (2013.01) [B23C 5/06 (2013.01); B23C 2210/168 (2013.01); B23C 2250/12 (2013.01); B23Q 11/10 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A milling tool, comprising:
a tool head having a front end and a rear end, the tool head being rotatable about a tool axis;
a replaceable ring having a first end and a second end, wherein the replaceable ring is placed on the tool head in an interlocking manner and releasably fastened thereto; and
a channel system;
wherein the front end of the tool head has an annular end flange comprising a plurality of stepped bores on a rear of the annular end flange;
wherein the replaceable ring comprises on the first end, a plurality of cutting elements distributed around the tool axis, and on the second end a plurality of threaded bores;
wherein in a cross-sectional view, the front end flange protrudes perpendicular from the tool axis such as to receive and fasten the replaceable ring therein via retaining screws disposed within the plurality of stepped bores and the plurality of axially threaded bores;
wherein the cutting elements are non-releasably soldered on the replaceable ring such that the replaceable ring and cutting elements are removable from the tool head as a single unit;
wherein the channel system extends through the tool head and replaceable ring for delivering coolant to the cutting elements; the channel system comprises a plurality of enclosed coolant distribution channels associated individually with the cutting elements, wherein at least portions of the enclosed distribution channels have a curved fluid pathway in the direction of fluid flow, wherein the milling tool is a surface milling tool.