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公开(公告)号：US20240316652A1
公开(公告)日：2024-09-26
申请号：US18278043
申请日：2022-02-25
发明人： Jun Kitajima , Shota Watanabe , Kenji Sugawara , Ryo Miura
IPC分类号： B23B27/16
CPC分类号： B23B27/1614 , B23B2205/04
摘要： A cutting insert has a surface to be pressed and a surface to be restrained. A supporter has a supporter main body, an elastically deformable gripping arm, a pocket, and a slit. The supporter main body has a restraining surface that comes into contact with the surface to be restrained. The gripping arm has a pressing surface that comes into contact with the surface to be pressed. The slit has a pocket opening that is open to the pocket. The pocket opening is disposed between the restraining surface and the pressing surface.
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公开(公告)号：US20210339321A1
公开(公告)日：2021-11-04
申请号：US17270645
申请日：2019-08-27
IPC分类号： B23C5/20
摘要： A cutting insert includes first and second polygonal surfaces and a plurality of side surfaces. A corner edge that has a corner rake surface on the first polygonal surface is formed at a first corner portion, and a main cutting edge is formed from the corner edge to a second corner portion. The main cutting edge includes, at least on a corner edge side, a rake angle gradual increase region where a rake angle of a main rake surface gradually increases to a positive angle side as going from a first end portion of the corner edge toward a second corner portion side.
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公开(公告)号：US20180257155A1
公开(公告)日：2018-09-13
申请号：US15759635
申请日：2016-09-15
IPC分类号： B23C5/24
CPC分类号： B23C5/2472 , B23C5/109 , B23C5/2221 , B23C2200/0438 , B23C2200/125 , B23C2200/28 , B23C2200/367 , B23C2210/202
摘要： A minor cutting edge has a first minor cutting edge and a second minor cutting edge that extends inward of the insert in a direction of an insert short side face axial line, as the second minor cutting edge extends from the first minor cutting edge in a direction of an insert major face axial line. A flank face of the second minor cutting edge is inclined outward of the insert in the direction of the insert short side face axial line, as the flank face extends from the second minor cutting edge in the direction of an insert long side face axial line, and is inclined outward of the insert in the direction of the insert short side face axial line, as the flank face extends from a major face adjacent to the flank face in the direction of the insert major face axial line.
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公开(公告)号：US20180071840A1
公开(公告)日：2018-03-15
申请号：US15561648
申请日：2016-03-29
发明人： Norikazu Suzuki , Jun Kitajima
CPC分类号： B23C5/10 , B23C5/006 , B23C5/109 , B23C5/165 , B23C2210/282 , B23C2210/40 , B23C2210/486 , B23C2250/16
摘要： A rotating tool includes a tool body which rotates around an axial line, four or more chip discharge grooves which are formed on an outer periphery of the tool body with gaps therebetween in a circumferential direction, and a plurality of cutting inserts which are arranged in multiple stages along the chip discharge grooves. In a cross-sectional view perpendicular to the axial line, when a center angle formed between a pair of virtual straight lines which connects each of the cutting edges of the cutting inserts disposed in a pair of chip discharge grooves adjacent to each other in the circumferential direction and the axial line to each other is defined as an angle, a plurality of angles formed around the axial line include one maximum angle (θmax), one minimum angle (θmin), and two or more angles other than the angle (θmax) and the angle (θmin).
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公开(公告)号：US11045886B2
公开(公告)日：2021-06-29
申请号：US16068684
申请日：2017-01-12
摘要： A cutting insert has an insert major body which includes two hexagonal faces facing each other and six side faces arranged around the two hexagonal faces, and is rotationally symmetrical at 120° intervals about an insert center line passing through centers of the two hexagonal faces and inversely symmetrical in front and back with respect to the two hexagonal faces, wherein a major cutting edge and an minor cutting edge are alternately formed in a circumferential direction in the single hexagonal face at twelve intersecting ridgeline portions at which the hexagonal faces and the side faces intersect, the major cutting edge is formed to be located at an intersecting ridgeline portion with one hexagonal face while the minor cutting edge is formed to be located at an intersecting ridgeline portion with the other hexagonal face at a single side face.
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公开(公告)号：US10799961B2
公开(公告)日：2020-10-13
申请号：US16137819
申请日：2018-09-21
摘要： A cutting insert includes an insert body; a pair of first surfaces; a through hole extending in a direction of a first axis; a second surface which connects the first surfaces and faces a direction of a second axis orthogonal to the first axis; a third surface which is disposed on the circumferential surface and is connected to the first surfaces and the second surface and faces a direction of a third axis; and cutting edges located at an intersection ridge line between the first surface and the second surface and at an intersection ridge line between the second surface and the third surface. The second surface has a projection part protruding in the direction of the second axis, and as viewed from the direction of the second axis, the through hole and the projection part are disposed to overlap each other.
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公开(公告)号：US10239133B2
公开(公告)日：2019-03-26
申请号：US15561648
申请日：2016-03-29
发明人： Norikazu Suzuki , Jun Kitajima
摘要： A rotating tool includes a tool body which rotates around an axial line, four or more chip discharge grooves which are formed on an outer periphery of the tool body with gaps therebetween in a circumferential direction, and a plurality of cutting inserts which are arranged in multiple stages along the chip discharge grooves. In a cross-sectional view perpendicular to the axial line, when a center angle formed between a pair of virtual straight lines which connects each of the cutting edges of the cutting inserts disposed in a pair of chip discharge grooves adjacent to each other in the circumferential direction and the axial line to each other is defined as an angle, a plurality of angles formed around the axial line include one maximum angle (θmax), one minimum angle (θmin), and two or more angles other than the angle (θmax) and the angle (θmin).
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公开(公告)号：US20190015911A1
公开(公告)日：2019-01-17
申请号：US16068684
申请日：2017-01-12
IPC分类号： B23C5/20
摘要： A cutting insert has an insert major body which includes two hexagonal faces facing each other and six side faces arranged around the two hexagonal faces, and is rotationally symmetrical at 120° intervals about an insert center line passing through centers of the two hexagonal faces and inversely symmetrical in front and back with respect to the two hexagonal faces, wherein a major cutting edge and an minor cutting edge are alternately formed in a circumferential direction in the single hexagonal face at twelve intersecting ridgeline portions at which the hexagonal faces and the side faces intersect, the major cutting edge is formed to be located at an intersecting ridgeline portion with one hexagonal face while the minor cutting edge is formed to be located at an intersecting ridgeline portion with the other hexagonal face at a single side face.
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公开(公告)号：US12030128B2
公开(公告)日：2024-07-09
申请号：US17270645
申请日：2019-08-27
IPC分类号： B23C5/20
CPC分类号： B23C5/202 , B23C2200/0411 , B23C2200/203 , B23C2200/291 , B23C2200/369
摘要： A cutting insert includes first and second polygonal surfaces and a plurality of side surfaces. A corner edge that has a corner rake surface on the first polygonal surface is formed at a first corner portion, and a main cutting edge is formed from the corner edge to a second corner portion. The main cutting edge includes, at least on a corner edge side, a rake angle gradual increase region where a rake angle of a main rake surface gradually increases to a positive angle side as going from a first end portion of the corner edge toward a second corner portion side.
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10.发明公开公开(公告)号：US20240066604A1
公开(公告)日：2024-02-29
申请号：US18270546
申请日：2022-01-05
发明人： Takayuki Hagiwara , Jun Kitajima
IPC分类号： B23B27/16
CPC分类号： B23B27/16 , B23B2260/0785
摘要： Provided is a clamping tool for attaching a cutting insert to a holder or detaching a cutting insert from a holder, the cutting insert including a head portion having a circular cutting edge and a shaft portion, the clamping tool including: a first jaw portion configured to be locked to the holder; and an operation lever configured to be connected to the first jaw portion, in which the first jaw portion has a locking portion configured to be locked to the holder, and a first pressing portion configured to push the head portion downward and fit the shaft portion into a shaft hole portion of the holder when the operation lever is rotationally moved in a first direction using the locking portion as a fulcrum.
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