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1. 发明公开

EP2498939A1 MACHINE TOOL BIT DESIGN 有权
标题翻译：机床位设计
公开(公告)号：EP2498939A1
公开(公告)日：2012-09-19
申请号：EP10829345.7
申请日：2010-11-10
申请人： Gischus, Simon Dean , Kilpatrick, Ian Lachlan
发明人： Gischus, Simon Dean , Kilpatrick, Ian Lachlan
IPC分类号： B23B51/00 , B23G5/06 , B23C5/10 , B27G15/00 , B25D17/08 , B23B51/10 , B23B51/02 , B25D17/02
CPC分类号： B23B31/005 , B23B51/02 , B23B2226/75 , B23B2231/0212 , B23B2251/248 , B23B2260/072 , B23C5/10 , B23D77/00 , B23G5/064 , Y10T407/19 , Y10T408/907
摘要： A machine tool bit, such as a tool for drilling, milling, reaming or tapping or the like comprising a work portion (71) and a shank (73) extending from the work portion. The shank (73) is provided with one or more regions of reduced mechanical torque strength. Such regions can be for example, a reduced diameter (74), axial or longitudinal slots (84, 114), reduced cross sectional area (97), bores (94), annular notch or groove (63, 65), or a slot. The shank is preferably constructed with these features such that the transverse stability of the tool bit is greater than a machine tool bit in which an equivalent reduction in mechanical torque strength is achieved by a mere reduction in diameter of the shank. Technically, the Polar moment of inertia (resistance to torsion) of the modified shank is greater than the polar moment of inertia of a shank with a mere reduction in diameter of the shank. The notches, recesses, grooves, bores or the like may further be filled with a material (75) to provide additional transverse stability to these one or more regions of reduced mechanical torque strength.
摘要翻译：一种机床刀具，例如用于钻削，铣削，铰孔或攻丝等的工具，包括工作部分（71）和从工作部分延伸的柄部（73）。柄（73）设置有一个或多个机械扭矩强度降低的区域。这些区域可以是例如减小的直径（74），轴向或纵向狭槽（84,114），减小的横截面积（97），孔（94），环形凹槽或凹槽（63,65）或狭槽。柄优选地具有这些特征，使得工具头的横向稳定性大于机械工具头，其中机械扭矩强度的等效降低仅通过柄的直径的减小来实现。从技术上讲，改良柄的极性转动惯量（抗扭转力）大于柄的极
性惯性力矩，仅减小柄的直径。凹口，凹槽，凹槽，孔或类似物可以进一步填充有材料（75）以为这些具有降低的机械扭矩强度的一个或多个区域提供额外的横向稳定性。

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