发明授权
- 专利标题: Method of and apparatus for forming a slot in a workpiece
- 专利标题(中): 在工件中形成槽的方法和装置
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申请号: US484832申请日: 1990-02-24
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公开(公告)号: US5023422A公开(公告)日: 1991-06-11
- 发明人: Laurence J. Laughton , Edward Ratcliffe
- 申请人: Laurence J. Laughton , Edward Ratcliffe
- 申请人地址: GB2 London
- 专利权人: Rolls-Royce plc
- 当前专利权人: Rolls-Royce plc
- 当前专利权人地址: GB2 London
- 优先权: GBX8907328 19890331
- 主分类号: B23H7/28
- IPC分类号: B23H7/28 ; B23H9/10 ; B23H9/14 ; B23Q15/007 ; B23Q15/013
摘要:
A machine tool produces a tapered slot by moving a tool laterally of the workpiece as well as directly into it. The lateral movement is shortened at the end of each half reciprocation, so as to form the taper. The shortened stroke is achieved by use of electronic circuitry in which transducers are utilized to indicate by voltage output, the magnitude of movement of the tool into the workpiece relative to the magnitude of the movement of the tool laterally thereof and on positive or negative numerical pair being noted, deriving a further signal therefrom and utilizing it to change the direction of reciprocation.
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