发明名称 |
Die tapping unit |
摘要 |
An in-die tapping unit for a press in which two ball screw mechanisms are driven by closing motion between two housing pieces caused by press actuation. Both ball screw mechanisms rotate a central drive gear which causes rotation and axial advance of a pitch adapter sleeve axially advanced by a threaded engagement with a fixed pitch adapter hub, the movable pitch adapter carrying a tap holder, which rotates and advances a tap inserted therein. A striker pad and acceleration spring reduces the shock loading of the unit when the press engages the upper housing piece.
|
申请公布号 |
US6547496(B2) |
申请公布日期 |
2003.04.15 |
申请号 |
US20010917202 |
申请日期 |
2001.07.27 |
申请人 |
DANLY IEM, DIVISION OF CONNELL LIMITED PARTNERSHIP |
发明人 |
CHUN VICTOR;HAJJAR MICHAEL;MADEJ FRANK |
分类号 |
B23B47/04;B23G3/00;(IPC1-7):B23B47/04 |
主分类号 |
B23B47/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|