| 发明名称 |
Expansion chuck |
| 摘要 |
The invention relates to a hydraulic expansion chuck with a basic body, with an expansion bush which is received in the basic body and defines a reception space for a tool to be chucked, and with a pressure chamber which is delimited between the expansion bush and the basic body, at least one solder region being provided, in which the expansion bush is soldered to the basic body, wherein, between the pressure chamber and the solder region, a seal is provided which is formed by an at least essentially fluid-tight bearing contact of the expansion bush against the basic body. |
| 申请公布号 |
US9289831(B2) |
申请公布日期 |
2016.03.22 |
| 申请号 |
US201213723027 |
申请日期 |
2012.12.20 |
| 申请人 |
KENNAMETAL INC. |
发明人 |
Herud Josef K.;Frota de Souza Filho Ruy |
| 分类号 |
B23B31/30;B23B31/12;B23B31/117 |
主分类号 |
B23B31/30 |
| 代理机构 |
|
代理人 |
Meenan Larry R. |
| 主权项 |
1. A hydraulic expansion chuck, comprising:
a basic body; an expansion bush which is received in the basic body and defines a reception space for a tool to be chucked, wherein the expansion bush includes a press portion and a solder portion adjacent thereto; a pressure chamber which is delimited between the expansion bush and the basic body, a solder region being provided in which the expansion bush is soldered to the basic body, wherein between the pressure chamber and the solder region a seal is provided which is formed by an at least essentially fluid-tight bearing contact of the expansion bush against the basic body; and wherein the seal is formed by a press fit between the expansion bush and the basic body by the press portion of the expansion bush which is larger in diameter than the solder portion of the expansion bush. |
| 地址 |
Latrobe PA US |
