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    • 1. 发明公开
    • ZERSPANUNGSWERKZEUG MIT FESTSTEHENDEN UND FEDERND GELAGERTEN FÜHRUNGSLEISTEN
    • FERTSTEHENDEN UNDER FEDERND GELAGERTENFÜHRUNGSLEISTEN,ZERSPANUNGSWERKZEUG MIT
    • EP3137248A1
    • 2017-03-08
    • EP15719628.8
    • 2015-04-09
    • MAPAL Fabrik für Präzisionswerkzeuge Dr. Kress KG
    • KRESS, Dieter
    • B23B29/03B23D77/00B23C5/20
    • B23B29/03B23B2229/04B23B2260/136B23C5/207B23D77/00B23D2277/105B23D2277/202B23D2277/204B23D2277/206B23D2277/46
    • The invention relates to a machining tool for machining bores, comprising a main part (3) which has a central axis (5) in a circumferential surface (7), at least two geometrically defined cutting edges (9/1 to 9/5) which are unevenly distributed on the circumferential surface (7) of the machining tool (1) when seen in the circumferential direction of the machining tool (1), and a number of guide strips which project from the circumferential surface (7) of the main part (3). The machining tool (1) is characterized in that two guide strips (19/1, 19/2) are designed to be stationary and are arranged with a circumferential spacing of less than 180° relative to one another such that a first circumferential region (21/1) is formed which lies between the stationary guide strips and extends over more than 180°, and a second circumferential region (21/2) is formed which extends over less than 180°; such that one (9/1, 9/2) of the at least two cutting edges (9/1 to 9/5) is arranged in the second circumferential region (21/2) between the stationary guide strips (19/1, 19/2); and such that at least one guide strip (23) is spring-mounted on the main part (3), and the at least one spring-mounted guide strip (23) is arranged in the first circumferential region (21/1) such that the at least one spring-mounted guide strip (23) resiliently presses the machining tool (1) against the stationary guide strips (19/1, 19/2) when machining a bore.
    • 本发明涉及一种用于加工孔的加工工具,其包括在圆周表面(7)中具有中心轴线(5)的主要部分(3),至少两个几何限定的切削刃(9/1至9/5) 在沿着加工工具(1)的圆周方向观察时,不均匀地分布在加工工具(1)的圆周面(7)上,并且从主体的圆周面(7)突出的多个导向条 第(3)部分。 所述加工工具(1)的特征在于,两个引导条(19/1,19/2)被设计为固定的并且相对于彼此以小于180°的周向间隔布置,使得第一周向区域 21/1)形成在固定引导条之间并且延伸超过180°,并且形成延伸超过180°的第二周向区域(21/2); 使得所述至少两个切削刃(9/1至9/5)中的一个(9/1,9/2)布置在所述固定导向条(19/1, 19/2); 并且使得至少一个引导条(23)弹簧安装在主要部分(3)上,并且至少一个弹簧安装的引导条(23)布置在第一周向区域(21/1)中,使得 当加工孔时,所述至少一个弹簧安装的引导条(23)将加工工具(1)弹性地压靠固定导向条(19/1,19/2)。