US 9,808,898 B2
Sealing system for a tool holder
Sylvain Laporte, Nantes (FR)
Assigned to MITIS, Bouguenais (FR)
Appl. No. 14/442,497
Filed by MITIS, Bouguenais (FR)
PCT Filed Nov. 13, 2013, PCT No. PCT/IB2013/060101
§ 371(c)(1), (2) Date May 13, 2015,
PCT Pub. No. WO2014/076641, PCT Pub. Date May 22, 2014.
Claims priority of application No. 12 60796 (FR), filed on Nov. 13, 2012.
Prior Publication US 2016/0039064 A1, Feb. 11, 2016
Int. Cl. B23Q 11/10 (2006.01); B23B 31/02 (2006.01); B23B 31/20 (2006.01)
CPC B23Q 11/1023 (2013.01) [B23B 31/02 (2013.01); B23B 31/20 (2013.01); B23Q 11/103 (2013.01); B23B 2231/24 (2013.01); B23B 2250/12 (2013.01); Y10T 279/17111 (2015.01); Y10T 408/45 (2015.01); Y10T 409/304032 (2015.01)] 13 Claims
OG exemplary drawing
 
1. A sealing system for a tool holder of a fluid-assisted milling or axial machining machine tool, comprising:
at least a first and a second seal contributing to delimiting a space for the circulation of the fluid toward at least one internal passage of the tool, one of the seals pressing against the tool or a tool-bearing adapter there may be, and the other seal pressing against a surface spaced away from the tool and rotating with the latter,
with 0.3≤Do/Djmax for Do in the range of 1 mm to 3 mm and 0.5≤Do/Djmax for Do in the range of 3 mm to 20 mm, where Do is the diameter of the tool facing this other seal and Djmax is the internal diameter of this seal.