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1. 发明公开

EP3129178A2 CUTTING TOOL AND CUTTING INSERT HAVING EXACTLY FOUR CUTTING PORTIONS THEREFOR 审中-公开
标题翻译： SCHNEIDWERKZEUG UND SCHNEIDINSATZ MIT GENAU VIER SCHNEIDTEILENDAFÜR
公开(公告)号：EP3129178A2
公开(公告)日：2017-02-15
申请号：EP15753475.1
申请日：2015-03-12
申请人： Iscar Ltd.
发明人： HECHT, Gil
IPC分类号： B23B29/04 , B23B27/00 , B23B27/04 , B23B27/14
CPC分类号： B23B27/1662 , B23B27/007 , B23B27/04 , B23B27/1622 , B23B29/043 , B23B2200/00 , B23B2200/04 , B23B2200/0423 , B23B2200/08 , B23B2200/086 , B23B2200/12 , B23B2200/121 , B23B2200/123 , B23B2200/128 , B23B2200/286 , B23B2200/369 , B23B2205/12 , B23B2220/123 , B23C2220/36
摘要： In a cutting tool having an indexable cutting insert with exactly four cutting portions, the cutting insert is removably securable to an insert holder by a fastener. The cutting insert has two opposing end surfaces with a peripheral side surface extending therebetween, and each cutting portion has a major cutting edge formed by the intersection of a rake surface and a relief surface. The peripheral side surface has first and second pairs of opposing side surfaces which include the four relief surfaces and the four rake surfaces, respectively. In an end view, four cutting points on the four major cutting edges define the transitions between the first and second pairs of opposing side surfaces, and a minimum first length dimension between the second pair of opposing side surfaces is less than six-tenths of a minimum second length dimension between two of the four cutting points.
摘要翻译：在具有正好四个切割部分的可转位切削刀片的切削工具中，切削刀片通过紧固件可拆卸地固定到刀片保持器。切削刀片具有两个相对的端面，其周边侧表面在其间延伸，并且每个切削部分具有由前刀面和浮雕表面的相交形成的主切削刃。周边侧表面具有分别包括四个浮雕表面和四个前刀面的第一和第二对相对的侧表面。在端视图中，四个主切削刃上的四个切割点限定了第一和第二对相对侧表面之间的转变，并且第二对相对侧表面之间的最小第一长度尺寸小于第二对相对侧表面的六分之一四个切割点中的两个之间的最小二维长度尺寸。

2. 发明授权

EP2781286B1 A polygonal turning insert 有权
标题翻译：聚合物Dreheinsatz
公开(公告)号：EP2781286B1
公开(公告)日：2016-04-20
申请号：EP14156906.1
申请日：2014-02-27
申请人： Sandvik Intellectual Property AB
发明人： Löf, Ronnie , Selin, Erik , Truong, Joe
IPC分类号： B23B27/14
CPC分类号： B23B27/143 , B23B2200/04 , B23B2200/0447 , B23B2200/081 , B23B2200/201 , B23B2200/321 , B23B2200/323 , Y10T407/235 , Y10T407/24

3. 发明公开

EP2682212A4 GUIDE PAD, CUTTING TOOL BODY, AND CUTTING TOOL 有权
公开(公告)号：EP2682212A4
公开(公告)日：2018-01-24
申请号：EP12752670
申请日：2012-02-07
申请人： TUNGALOY CORP
发明人： NISIKAWA KOJI
IPC分类号： B23B51/00
CPC分类号： B23B51/0054 , B23B51/048 , B23B2200/00 , B23B2200/04 , B23B2200/0447 , B23B2251/56 , Y10T407/23 , Y10T408/5586 , Y10T408/98
摘要： A guide pad with high freedom degree of arrangement is provided. The guide pad (1) in a plate-like shape is provided, including an upper surface (2) and a lower surface (3) which face each other, and a side surface (6) extending between the upper surface (2) and the lower surface (3), and being removably attached to a tool body (10) of a cutting tool, in which the upper surface (2) includes at least one guide surface (2a) that extends in a longitudinal direction (A) of the guide pad (1) and curves convexly, and the upper surface (2) and the lower surface (3) have left-right asymmetrical external shapes, respectively.

4. 发明公开

EP2781286A1 A polygonal turning insert 有权
标题翻译：聚合物Dreheinsatz
公开(公告)号：EP2781286A1
公开(公告)日：2014-09-24
申请号：EP14156906.1
申请日：2014-02-27
申请人： Sandvik Intellectual Property AB
发明人： Löf, Ronnie , Selin, Erik , Truong, Joe
IPC分类号： B23B27/14
CPC分类号： B23B27/143 , B23B2200/04 , B23B2200/0447 , B23B2200/081 , B23B2200/201 , B23B2200/321 , B23B2200/323 , Y10T407/235 , Y10T407/24
摘要： This invention relates to a polygonal turning insert having primary cutting edges (12), which individually include a nose edge (14) and two main edges (15), which converge toward the same. Behind the nose edge, chip-directing guide surfaces are formed, viz., on one hand, a breast surface (24) included in a knob (20) situated behind the nose edge along a bisector between the main edges (15), and, on the other hand, a pair of flank surfaces (21) included in a land being behind. According to the invention, at a distance behind the knob (20), there is formed a second breast surface (25), the upper part of which is situated on a higher level than the upper part of the first breast surface (24). In such a way, it is guaranteed that thin chips, which tend to pass or jump over the first breast surface without being affected by the same, will impinge on the second, higher breast surface and be subjected to guiding by the same.
摘要翻译：本发明涉及一种多边形车削刀片，其具有主切削刃（12），该主切削刃分别包括前缘（14）和两个主边缘（15），其朝向它们会聚。在鼻边缘后面，形成芯片引导引导表面，即，一方面，包括在沿着主边缘（15）之间的平分线位于鼻子边缘后面的旋钮（20）中的乳房表面（24），以及另一方面，包括在后面的一个平台中的一对侧面（21）。根据本发明，在把手（20）后面一定距离处形成有第二乳房表面（25），其第二乳房表面（25）的上部位于比第一乳房表面（24）的上部更高的位置。以这种方式，保证倾向于在第一乳房表面上通过或跳过而不受其影响的薄片将撞击在第二较高乳房表面上并受其引导。

5. 发明公开

EP2978552A1 RHOMBUS-SHAPED INDEXABLE CUTTING INSERT AND CUTTING TOOL 有权
标题翻译：菱形转位式刀片和刀具
公开(公告)号：EP2978552A1
公开(公告)日：2016-02-03
申请号：EP14716030.3
申请日：2014-03-09
申请人： Iscar Ltd.
发明人： HECHT, Gil
IPC分类号： B23B27/16 , B23C5/20
CPC分类号： B23B27/1651 , B23B27/145 , B23B27/1611 , B23B27/1677 , B23B2200/04 , B23B2200/0447 , B23B2200/161 , B23B2200/3618 , B23B2200/3627 , B23B2205/12 , Y10T407/2272 , Y10T407/2274 , Y10T407/23 , Y10T407/235
摘要： A rhombus-shaped cutting insert has opposing upper and lower surfaces, and a peripheral side surface extending therebetween having alternating obtuse and acute corner surfaces separated by four relief surfaces. The cutting insert is removably secured in an insert receiving pocket of a tool holder and indexable about a central axis. A nose cutting edge is formed at the intersection of one of the upper and lower surfaces with each of the two acute corner surfaces. One of the upper and lower surfaces has an engagement surface having a single primary and four secondary engagement elements. The primary and secondary engagement elements or portions thereof, exhibit mirror symmetry about primary and secondary engagement planes. The primary engagement plane contains the central axis and intersects each nose cutting edge, and each secondary engagement plane does not contain the central axis and forms an acute engagement angle with the primary engagement plane.

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