发明名称 |
Boring tool with a double cutter head, in which the working load is prevented outside the elastic range of the cutting bit holder material in the vicinity of the outermost radial positioning |
摘要 |
The head of this boring tool carries two bit holders, which can be radially adjusted to different cutting widths by tooth systems provided on sloping faces of the head and/or bit holder. To ensure that there is still reciprocal supporting of the bit holders even in the outermost adjustment range thereof, cams are provided for extending the supporting surfaces. As an alternative to or in addition to this measure, the spacing between the front end face of the head and the surface of the bit holder parallel thereto is made so small that when high cutting forces occur these surfaces are supported on one another before the elastic deformation range of the bit holders is exceeded.
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申请公布号 |
US4595320(A) |
申请公布日期 |
1986.06.17 |
申请号 |
US19840652744 |
申请日期 |
1984.09.19 |
申请人 |
URMA AG |
发明人 |
BERNER, WILLY;BERGER, HANS;BOLLER, KURT |
分类号 |
B23B29/034;(IPC1-7):B23B51/00;B23B29/26 |
主分类号 |
B23B29/034 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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