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1. 发明专利

JPH11197912A THROW-AWAY TIP 失效
公开(公告)号：JPH11197912A
公开(公告)日：1999-07-27
申请号：JP808798
申请日：1998-01-19
申请人： MITSUBISHI MATERIALS CORP
发明人： OKADA GIICHI , RYU TAKESHI , TAKAHASHI HIROYUKI
IPC分类号： B23B27/22
摘要： PROBLEM TO BE SOLVED: To surely and effectively dispose chips in a wide cutting range from cutting of superfinishing to general cutting. SOLUTION: A nose cutting edge 15 is formed in a nose part C in which cutting edges 14 at the ridge parts of a rake surface 12 which is the top surface of a polygonal planer tip body 11, and which is formed therein with a chip breaker 18 rising from the rake surface 12 and extending to the nose part C. The rake angle of the nose cutting edge 15 is gradually increased from the opposite ends 15A, 15B of the nose cutting edge 15 to a position on the bisectional line L of the nose part C, and a part of a breaker wall surface 20B of the chip breaker 18, which is opposed to the nose cutting edge 15, is formed therein with a first breaker wall 20a rising up from the rake surface 12B, and a second breaker wall 20b rising up from the first breaker wall 20a with a gradient smaller than that of the first breaker wall 20a.

2. 发明专利

JPH0871886A CHIP SUCKING DEVICE 失效
公开(公告)号：JPH0871886A
公开(公告)日：1996-03-19
申请号：JP21485194
申请日：1994-09-08
申请人： MITSUBISHI MATERIALS CORP
发明人： SAKAMOTO TOMOYOSHI , TAKAHASHI HIROYUKI
IPC分类号： B23Q11/00 , B23B47/34
摘要： PURPOSE: To provide a chip sucking device capable of miniaturizing a cover. CONSTITUTION: This device is supported by a cutter main body 13, wherein a shunk part 15, directly or indirectly via a retaining member 14 attached to a machine main body, and an extended part 17, extending from the machine main body and also provided with a cutting blade part 16 at a tip, are integrally provided; and also is made elastically so that this device can be extended so as to surround the periphery of the cutter main body 13 and the tip part of the device can be moved along the axis direction of the cutter main body 13. Moreover, the device is provided with a cylindrical cover 24, wherein a suction port 34 for communicating the inside and the outside is provided, and a sucking means 25 linked to the suction port 34 to suck air from the inside of the cover 24.

3. 发明专利

JPH07328807A ROTARY CUTTING TOOL 失效
公开(公告)号：JPH07328807A
公开(公告)日：1995-12-19
申请号：JP12037194
申请日：1994-06-01
申请人： MITSUBISHI MATERIALS CORP
发明人： SAKAMOTO TOMOYOSHI , TAKAHASHI HIROYUKI
IPC分类号： B23B27/12
摘要： PURPOSE:To suppress abrasion of a tip in high speed cutting and highly precisely hold finishing face roughness. CONSTITUTION:A tip seat 14 having an approximate fan shape in a plan view is provided on the tip face of a tool main body 13. A side seat part 21 and a bottom seat part 22 are fixed to the circumferencial side face and the bottom face of the tip seat 14 respectively. A disc throw away chip 15 is mounted on the bottom seat part 22 and rotatably fitted and held by the internal circumferencial face 21a of the side seat part 21. The internal circumferencial face of the side seat part 21 fittingly holds the half of the circumference of the tip 15 or more. The presser part 26 of a clamp piece 24 fixed by a screw 25 elastically presses the tip 15. The tip 15 is thus placed in its driven rotation by cutting resistance and its concentricity is high.

4. 发明专利

JPH07241703A THROW AWAY TIP FOR ROTARY BITE AND ROTARY BITE 失效
公开(公告)号：JPH07241703A
公开(公告)日：1995-09-19
申请号：JP3737494
申请日：1994-03-08
申请人： MITSUBISHI MATERIALS CORP
发明人： SAKAMOTO TOMOYOSHI , NAGANO TAKESHI , TAKAHASHI HIROYUKI
IPC分类号： B23B27/12 , B23B27/16
摘要： PURPOSE:To provide a throw away tip for a rotary bite of which the manufacture is easy, the cost is low, and the coaxial degree of the tip is easily obtained, and a rotary bite using the tip. CONSTITUTION:A throw away tip 20 is constituted of a disc-like tip main body 22 of which the upper and lower faces 20a, 20b are formed into a circle in the contour by plan view and in parallel with each other and a through hole 21 is provided so as to pass on the center axis, and a shaft body 23 press fitted in the through hole 21 and fixed so that the end part is projected from at least one of the upper and lower faces 20a, 20b of the tip main body 22. A rotary bite 30 is provided with the throw away tip 20, and a tool main body 31 to which the throw away tip 20 is rotationally movably fitted.

5. 发明专利

JPH07132408A METHOD AND DEVICE FOR POSITIONING TIP OF EDGE TIP BASE TYPE MILLING CUTTER 失效
公开(公告)号：JPH07132408A
公开(公告)日：1995-05-23
申请号：JP27387593
申请日：1993-11-01
申请人： MITSUBISHI MATERIALS CORP
发明人： SAKAMOTO TOMOYOSHI , TAKAHASHI HIROYUKI , SHIBATA KIYOAKI
IPC分类号： B23C5/24 , B23C9/00 , B23Q3/155
摘要： PURPOSE:To position a tip accurately relative to a tip base position. CONSTITUTION:The dislocation to the tip base position of a tip 3 attached to a milling cutter 1 is measured with a measuring means 41, and also based on this measured result, an operating means 42 operates the quantity of modification of the position of a positioning member 12. Based on the operation result, a positioning member position modifying means 43 modifies the position of the positioning member 12, and then it attaches the tip 3 again, using this positioning member 12. Hereby, the influence of a tip attaching groove 4 affecting the positioning of the tip 3 can be negated, so the tip 3 can be positioned accurately to the edge tip base position.

6. 发明专利

JP2000254807A THROW AWAY TIP 失效
公开(公告)号：JP2000254807A
公开(公告)日：2000-09-19
申请号：JP5947899
申请日：1999-03-05
申请人： MITSUBISHI MATERIALS CORP
发明人： OKADA GIICHI , RYU TAKESHI , TAKAHASHI HIROYUKI
IPC分类号： B23B27/22
摘要： PROBLEM TO BE SOLVED: To surely control the chip discharge direction and display excellent chip disposal performance under cutting conditions of a broad range from low cutting depth to high cutting depth. SOLUTION: This throw away tip comprises first, second and third breaker walls 21, 22 and 23 provided in a breaker groove formed between a corner section of the top face 11 of the tip and the center section. The first breaker wall 21 is formed into a curved face shape so that the radius R1 of curvature along a bisector L becomes larger than the radius R2 of curvature along the direction orthogonally crossing the bisector L, and the second breaker walls 22 comprise walls extending in parallel with a cutting edge 13 and an inclined wall, which lies in a row behind the parallel wall and extends gradually separated from the cutting edge 13 as approaching the center section. In addition, the third breaker wall 23 is arranged between a pair of the second breaker walls 22 opposing to each other from opposite side of the bisector L and is extended gradually separated from the cutting edge 13 as approaching the side of the center section from the side of a corner. The third breaker wall 23 is formed higher than the first and second breaker walls 21 and 22.

7. 发明专利

JPH07241701A THROW AWAY TIP FOR ROTARY BITE AND ROTARY BITE 失效
公开(公告)号：JPH07241701A
公开(公告)日：1995-09-19
申请号：JP3737594
申请日：1994-03-08
申请人： MITSUBISHI MATERIALS CORP
发明人： KIMURA YOSHIHIKO , SAKAMOTO TOMOYOSHI , NAGANO TAKESHI , TAKAHASHI HIROYUKI
IPC分类号： B23B27/12
摘要： PURPOSE:To provide a throw away for improving machining accuracy of cutting by wholley equalizing the wear of a cutting edge accompanying extension of the continuous machining time of the throw away tip, and a rotary bite. CONSTITUTION:A throw away tip 20 is formed so that the upper and lower faces 20a, 20b are formed into a circle in the contour by plane view and in parallel with each other, a rotary axis is provided so as to pass on the center axis, cutting edges 22 are formed on the ridge lines between the above-upper and lower faces 20a, 20b and the circumferential face 20c adjacent to them and formed in rake faces on the upper and lower faces 20a, 20b, and a plurality of recessed parts 23 are annularly arranged in the vicinity of the cutting edges 22 of the upper and lower faces 20a, 20b. A rotary bite 30 is provided with the throw away tip 20, and a tool main body 31 to which the throw away tip 20 is rotationally movably fitted.

8. 发明专利

JPH07195251A CHIP SUCTION DEVICE IN END MILLING 失效
公开(公告)号：JPH07195251A
公开(公告)日：1995-08-01
申请号：JP35001693
申请日：1993-12-28
申请人： MITSUBISHI MATERIALS CORP
发明人： SAKAMOTO TOMOYOSHI , TAKAHASHI HIROYUKI
IPC分类号： B23Q11/00 , B23C9/00
摘要： PURPOSE:To prevent chips from scattering around by installing a circular platelike chip guide plate, being installed so as to partially surround the circumference of a cutting edge part of an end mill projecting out of a tip opening part, in this tip opening part peripheral edge of a chip suction part. CONSTITUTION:Chips formed by a peripheral cutting edge part 4A and a tip cutting edge 4B of a cutting edge part 5 are guide by a chip guide plate 14 without scattering around from the peripheral space of the cutting edge part 5, and they are conducted toward the side of a tip opening part 23 of a chip suction part 13. Here, since this tip opening part 23 of this chip suction part 13 is made into negative pressure, the chips conducted hereat are drawn into a chip suction space 22. Further the chips are delivered to a chip storage space 19 as getting on a flow of air heading for the side of a base end formed in this chip suction space 22. On the other hand, with a space partitioned in and around the cutting edge part 5 of an end mill, in and around this cutting edge part 5, only the base end side to be interconnected to the chip suction space 22 is opened, but other directions come to a state of being almost blocked up.

9. 发明专利

JPH06190613A ARBOR AND MACHINE TOOL PROVIDED WITH SPINDLE TO WHICH THIS ARBOR CAN BE ATTACHED 失效
公开(公告)号：JPH06190613A
公开(公告)日：1994-07-12
申请号：JP34288492
申请日：1992-12-22
申请人： MITSUBISHI MATERIALS CORP
发明人： KIMURA YOSHIHIKO , SAKAMOTO TOMOYOSHI , TAKAHASHI HIROYUKI , SHIMIZU SATORU
IPC分类号： B23B29/00 , B23B31/02 , B23B31/117 , B23Q3/12
摘要： PURPOSE:To easily and accurately change a projection amount in a cutting tool by forming a plurality of oil passages from an arbor body for holding the cutting tool to a main spindle body through a spindle to which the arbor body is attached, and by operating feeding discharging of working fluid to from respective oil passages. CONSTITUTION:Inside an arbor body A attached to a spindle S of a machine tool for holding a cutting tool T, an insert hole 24 and a cylinder chamber 25 are formed. A piston 27 is inserted into the cylinder chamber 25 to divide the inside into two parts. Into the insert hole 24, a holding member 29 for holding the cutting tool T is inserted by connected to the piston 27. Inside each of the two divided cylinder chambers 25A and 25B, a plurality of oil passages 28, 46 and 49 are formed going each from the arbor body A to a main spindle body 41 through the spindle S. And both the oil passages 46 and 49 on the spindle side and the main spindle body side are communicated with each other through groove parts 45A and 45B formed on the outer circumferential face of the spindle S so as to turn around an axis O of the cutting tool T.

10. 发明专利

JPH06170683A CHIP SUCTION TYPE TURNING CUTTING TOOL 失效
公开(公告)号：JPH06170683A
公开(公告)日：1994-06-21
申请号：JP32581792
申请日：1992-12-04
申请人： MITSUBISHI MATERIALS CORP
发明人： TAKAHASHI HIROYUKI , SAKAMOTO TOMOYOSHI , SHIMIZU SATORU
IPC分类号： B23Q11/00 , B23C9/00
摘要： PURPOSE:To provide a cutting chip suction type turning cutting tool wherein a condition of compressed air supplied from a cover point end part can be adjusted in accordance with a cutting condition to enable cutting chip suction efficiency to improve. CONSTITUTION:A cutting tip 50 is mounted on a point end internal peripheral part of a tool main unit 112 rotated about an axial line, a cover 46 for partitioning a cutting chip storage chamber 44 is provided rotatably about a tool axial line in the tool main unit 42, and a suction port 90 for connecting the cutting chip storage chamber 44 to the outside of the cover is formed in the cover 46. A jet port 84 opened toward a tool point end side is formed in a point end side part of the cover 4, a blow in port for connecting the inside of the jet port 84 to the cover outside is formed in the cover 4, and an air adjusting member 96 of protruding the point end part in a ring shape to a diametric direction inside of the cover 46 is provided capably of advancing/ retracting along an axial line direction of the cover 46, in the outside of the point end side part of the cover.

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