WO2006097981A1 - 切削工具の切刃構造 - Google Patents
切削工具の切刃構造 Download PDFInfo
- Publication number
- WO2006097981A1 WO2006097981A1 PCT/JP2005/004336 JP2005004336W WO2006097981A1 WO 2006097981 A1 WO2006097981 A1 WO 2006097981A1 JP 2005004336 W JP2005004336 W JP 2005004336W WO 2006097981 A1 WO2006097981 A1 WO 2006097981A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cutting
- tool
- cutting tool
- cutting edge
- blade
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B41/12—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor for forming working surfaces of cylinders, of bearings, e.g. in heads of driving rods, or of other engine parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
- B23B27/005—Geometry of the chip-forming or the clearance planes, e.g. tool angles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
- B23B27/06—Profile cutting tools, i.e. forming-tools
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J10/00—Engine or like cylinders; Features of hollow, e.g. cylindrical, bodies in general
- F16J10/02—Cylinders designed to receive moving pistons or plungers
- F16J10/04—Running faces; Liners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2200/00—Details of cutting inserts
- B23B2200/36—Other features of cutting inserts not covered by B23B2200/04 - B23B2200/32
- B23B2200/369—Mounted tangentially, i.e. where the rake face is not the face with the largest area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2215/00—Details of workpieces
- B23B2215/24—Components of internal combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2215/00—Details of workpieces
- B23B2215/24—Components of internal combustion engines
- B23B2215/242—Cylinder liners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2270/00—Details of turning, boring or drilling machines, processes or tools not otherwise provided for
- B23B2270/20—Internally located features, machining or gripping of internal surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2270/00—Details of turning, boring or drilling machines, processes or tools not otherwise provided for
- B23B2270/30—Chip guiding or removal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T407/00—Cutters, for shaping
- Y10T407/23—Cutters, for shaping including tool having plural alternatively usable cutting edges
- Y10T407/235—Cutters, for shaping including tool having plural alternatively usable cutting edges with integral chip breaker, guide or deflector
Definitions
- the present invention relates to a cutting blade structure of a cutting tool used for machining a rough surface on a workpiece.
- a rough surface is formed by cutting on a cylindrical inner peripheral wall such as a cylinder inner peripheral surface
- the work piece is placed on the inner peripheral wall with the blade tip end nose of the cutting tool pressed against the cylindrical inner peripheral wall.
- the cutting tool is fed and moved in the axial direction while rotating around the axis.
- a rough surface is formed on the inner peripheral wall of the workpiece due to fluctuations in the depth of cut due to fluctuations in chip flow and cutting back force.
- the cutting tool has no function to control the chip flow, and the cutting edge is not shaped to obtain sufficient back force.
- the roughness was insufficient.
- burrs incomplete fracture fragments called so-called burrs are generated, resulting in a problem that the finished surface becomes incomplete and rough.
- An object of the present invention is to provide a cutting tool cutting blade structure capable of obtaining a finished surface having an appropriate roughness without generating an incompletely broken piece.
- a cutting tool structure of a cutting tool includes a rake face having first and second cutting edges, and cuts the cutting edges on a work surface of a workpiece.
- a cutting blade structure of a cutting tool that performs cutting on the work surface by moving relative to the work surface in a state of being inserted,
- the first cutting edge is positioned in front of the second cutting edge in the cutting direction, and the rake face is inclined so that the first cutting edge comes into contact with the cutting portion of the work surface before the second cutting edge.
- the rake face is provided with a rake angle in the feed direction
- the second cutting edge side force is characterized in that the cutting tool is fed and moved in a direction toward the first cutting edge side.
- FIG. 1 is a perspective view showing a distal end portion of a cutting tool that works on an embodiment of the present invention.
- FIG. 2 is a longitudinal sectional view showing a state in which the inner peripheral wall of a workpiece is cut using a cutting tool which is powerful in the embodiment of the present invention.
- FIG. 3 is an enlarged cross-sectional view of the main part of FIG.
- FIG. 4 is a sectional view taken along line IV-IV in FIG.
- FIG. 5 is a cross-sectional view taken along line V—V in FIG.
- FIG. 6 is a sectional view taken along line VI-VI in FIG.
- FIG. 7 is a cross-sectional view taken along line VII-VII in FIG.
- FIG. 8 is a cross-sectional view showing a comparative example corresponding to FIG.
- FIG. 9 is a cross-sectional view showing a comparative example corresponding to FIG.
- FIG. 10 is a cross-sectional view showing a comparative example corresponding to FIG.
- FIG. 11 is a cross-sectional view of a cutting tool having a second cutting blade provided with houng.
- FIG. 12 is an enlarged cross-sectional view of the portion XII in FIG.
- FIG. 13 is a cross-sectional view showing a state where the inner peripheral wall of a workpiece is cut using a cutting tool provided with an incompletely broken piece removing blade.
- FIG. 14 is a cross-sectional view showing the main parts of FIG.
- FIG. 15 is a plan view of a chip provided with an incomplete broken piece removing blade.
- FIG. 16 is a side view of the chip of FIG.
- FIG. 17 is an enlarged side view of the XVII part of the chip of FIG.
- FIG. 18 is a side view of a chip provided with an incompletely broken piece removing blade shown for comparison.
- FIG. 19 is a plan view showing a cutting tool according to an embodiment of the present invention.
- FIG. 20 is a front view of the cutting tool of FIG.
- FIG. 21 is a side view of the cutting tool of FIG.
- FIG. 22 is a plan view showing a boring bar that works on the embodiment of the present invention.
- FIG. 23 is a front view of the boring bar of FIG.
- FIG. 24 is a side view of the boring bar of FIG.
- FIG. 25 is a side view showing a boring tool according to an embodiment of the present invention.
- FIG. 26 is a bottom view of the boring tool of FIG. 25.
- FIG. 27 is a front view of the boring tool of FIG.
- the z-axis positive direction indicates the cutting direction, that is, the direction in which the cutting tool moves relative to the work surface while cutting.
- the positive y-axis direction indicates the feed direction, that is, the direction in which the cutting tool moves relative to the work surface in order to continue cutting (the direction of feed movement).
- the negative direction of the X axis indicates the cutting direction, that is, the direction in which the cutting tool is cut into the work surface.
- the z-axis positive direction may be referred to as the cutting direction front side
- the z-axis negative direction may be referred to as the cutting direction rear side
- the y-axis positive direction may be referred to as the feeding direction front side
- the y-axis negative direction may be referred to as the feeding direction rear side.
- the tip of the cutting tool 1 has a substantially triangular prism shape, and is positioned on the rake face 3 on the front side in the cutting direction and on the rear side in the cutting direction of the rake face 3. And a bottom surface 5 facing the rake face 3 with a gap, a side surface 7 on the front side in the feed direction, and a side surface 9 on the rear side in the feed direction.
- the rake face 3, the side face 7, and the side face 9 are flat faces.
- the first cutting edge 11 is formed at the intersection of rake face 3 and side face 7 at the front edge of rake face 3 in the feed direction, and rake face 3 at the rear edge of rake face 3 in the feed direction
- a second cutting edge 13 is formed at the intersection line with the side surface 9.
- the tip of the rake face 3 Nose portion 15 is formed by intersecting side 3 and side 7 and 9.
- the opposite end of the nose portion 15 is a base end portion 17.
- the nose portion 15 is located on the front side in the cutting direction with respect to the base end portion 17, and the first cutting edge 11 is located on the front side in the cutting direction with respect to the second cutting edge 13.
- the rake face 3 is positioned at the front side in the cutting direction (z-axis positive direction side) as it goes toward the tip of the cutting direction (X-axis negative direction side), and as it goes toward the feed direction front side (y-axis positive direction side). It is inclined so as to be located on the front side in the cutting direction (z-axis positive direction side). In other words, the rake face 3 is provided with a rake angle in the feed direction.
- FIG. 2 is a cross-sectional view in a plane including the central axis 19a of the cylindrical inner peripheral wall 21, showing a state in which the cylindrical inner peripheral wall 21 of the workpiece 19 is cut from the lower side to the upper side in the figure. It is.
- the workpiece 19 rotates about the axis 19a with respect to the cutting tool 1, and the cutting tool 1 moves relative to the axis 19a in a straight line and is sent upward in the figure.
- the manner of cutting is the same as in FIG.
- the cutting process is performed by attaching the cutting tool 1 to a machine tool main body (not shown) and pressing the tip nose portion 15 against the cylindrical inner peripheral wall 21 of the work piece 19 which is a work surface. While cutting, rotate the work piece 19 around the axis 19a. The rotation of the workpiece 19 causes the nose portion 15 of the cutting tool 1 cut into the inner peripheral wall 21 to move relative to the inner peripheral wall 21 in the cutting direction (in FIG. 2, the direction facing the back surface of the paper). To do. Simultaneously with the rotational movement of the workpiece 19, the cutting tool 1 performs a feed movement. The feeding direction substantially coincides with the axis 19a of the workpiece 19.
- the cutting tool 1 moves relative to the inner peripheral wall 21 in the circumferential direction and the axial direction. For this reason, the nose portion 15 of the cutting tool 1 continues the cutting motion while drawing a spiral locus on the inner peripheral wall 21.
- the chip 23 generated by the above-described cutting process is the tip of the first cutting edge 11 (the intersection A between the first cutting edge 11 and the work surface 21).
- the nose part 15 Between the tip B
- the part generated by cutting the width is W1
- the part generated by the fracture the width is W2
- the arrow D1 in Fig. 3 indicates the rake angle of the rake face 3 with respect to the rake face 3 and the angle (the inclination angle of the rake face 3 with respect to the feed direction of the cutting tool 1). This indicates the chip discharge direction when the degree is not set.
- the direction of D1 is the virtual passage between the cutting surface 33 and the second cutting edge 13 when the surface formed on the inner peripheral wall 21 of the workpiece 19 by cutting with the tip of the first cutting edge 11 is the cutting surface 33. Almost perpendicular to the line connecting intersection C with surface 13a and point A above.
- the rake angle ⁇ is provided on the rake face 3, so the chip discharge direction is not provided with the rake angle in the feed direction as shown by the arrow D2. Compared to the case, it touches the rear side in the feed direction.
- the portion 25 on the rear side in the feed direction of the chip 23 is the ridge portion of the mountain 27 formed by the virtual passage surface 13a of the second cutting edge 13 and the cutting surface 33 formed by the first cutting edge 11. Interfering with (top). By this interference, the ridge portion of the mountain 27 is stripped, and a rough surface 31 is formed as the fracture surface 29.
- the inner peripheral wall 21 of the workpiece 19 is cut so that a chip 23 is generated toward the front side in the paper surface direction of FIG. Moreover, the vertical rake angle ⁇ on the first cutting edge 11 side (the angle formed by the rake face 3 with respect to the normal 35 of the cutting surface 33 in the plane perpendicular to the first cutting edge 11) is shown in FIG. Is set to be positive. That is, the rake face 3 in the vicinity of the first cutting edge 11 is inclined to the opposite side of the cutting direction with respect to the direction of the axis 19a of the workpiece 19.
- the vertical rake angle / 3 'on the second cutting edge 13 side is set to be negative. That is, the rake face 3 in the vicinity of the second cutting edge 13 is inclined by an angle j8 ′ in the cutting direction with respect to the axis 19a direction of the workpiece 19.
- 6 corresponds to the one-dot chain line portion of the first cutting edge 1 1 in FIG. 1
- FIG. 7 corresponds to the one-dot chain line portion of the second cutting edge 13 in FIG. .
- the rake face 3 is parallel to the tool feed direction (y-axis).
- the chip 41 cut by the first cutting edge 39 is easily divided, and the cutting surface of the inner peripheral wall 21 of the work piece 19 is microscopically viewed as a peak. It is formed in an uneven shape from the repeated valleys.
- the outflow direction of the chip 41 is D 1.
- the chip 41 does not interfere with the ridge portion of the mountain formed by the cutting surface 39a by the first cutting edge 39 and the cutting surface 40a by the second cutting edge 40.
- Many incompletely broken fragments 42 occur. That is, most of the chips 41 become chips by cutting, and there are no chips by fracture (the portion corresponding to W2 in FIG. 3).
- FIG. 11 and FIG. 12 are cross-sectional views of the distal end portion of the cutting tool 43 corresponding to FIG. 5, and a honing 47 in which the second cutting blade 45 is rounded by chamfering is provided.
- FIGS. 13 and 14 show a cutting tool 49 provided with both a rake angle in the feed direction and an incompletely broken piece removing blade.
- the rake face 3 is inclined with a rake angle ⁇ in the feed direction with respect to the feed direction. Therefore, the chip 54 is a combination of the chip from cutting (width W1) and the chip from fracture (width W3) (width W1 + W3), and the discharge direction D3 (solid line) is D1 (2 points). It is toward the back of the feed direction than the chain line.
- an incompletely broken piece removing blade 53 extending from the second cutting blade 51 to the rear side in the feed direction is provided at the edge of the rake face 3 on the second cutting blade 51 side. The incompletely broken piece removing blade 53 is set at a position that interferes with a mountain ridge formed on the finished surface of the inner peripheral wall 21 in the cutting process.
- FIG. 15-FIG. 17 show a tip 57 having three rake faces 59.
- Each rake face 59 is provided with an incompletely broken piece removing blade 55. If the rake face 59 in use becomes worn, another rake face 59 that is not worn can be used by rotating the tip 57 and mounting it.
- the incompletely broken piece removing blade 55 is composed of a longitudinal surface 63 parallel to the mounting axis direction 61 of the tip 57 and a lateral surface 67 formed along the radial direction 65 of the tip 57.
- the cross section is formed in a substantially square shape.
- the incompletely broken piece removing blade 55 may be a force member formed integrally with the tip 57 of the main tool.
- the nose portion 71 of the chip 69 without the incompletely broken piece removing blade is formed in a substantially triangular shape in side view.
- FIGS. 19 and 26 show a cutting tool 73, a boring bar 75, and a boring tool 77 in which the cutting tool described so far is attached to the tool body.
- the cutting tool 73 has the tip 57 fastened to the front end of a tool body 79 formed in a substantially prismatic shape via a bolt 81.
- the nose portion 85 of the tip 57 slightly protrudes from the tip surface 83 of the tool body 79, and the nose portion 85 is cut into the inner peripheral wall 21 of the workpiece 19.
- the tip 89 of the tool main body 87 in the boring bar 75 is curved in a radial direction to form a cut, and the tip 57 is formed at the tip 89.
- the nose portion 85 of the tip 57 is disposed so as to protrude outward from the side surface 91 of the tool body 87.
- a boring tool 77 includes an tool body 93 formed in a columnar shape, an attachment tool 97 attached to a distal end portion 95 of the tool body 93, and It consists of a tip 57 attached to the tip of the mounting tool 97.
- a base end portion 99 of the tool main body 93 has a cylindrical shape, and a front end portion 95 is formed on a flat side surface along the axis 19a direction of the tool main body 93, and an attachment tool 97 is attached to the side surface.
- the rake face 3 is inclined by the feed direction rake angle ⁇ with respect to the tool feed direction, so that the flow of the chip 23 is reliably controlled, and the chip 23
- the interference portion 25 on the rear side in the feed direction interferes with the ridge portion of the mountain 27 formed on the inner peripheral wall 21 to break the mountain 27 and form the fracture surface 29. From this, an appropriate rough surface 31 can be formed on the inner peripheral wall 21.
- the cutting blade structure of the cutting tool according to the present invention has been described above using the above embodiment as an example.
- the present invention is not limited to this, and various embodiments can be adopted without departing from the scope of the present invention.
- the cutting edge structure of a cutting tool has been described in which a workpiece having a cylindrical inner peripheral wall is turned to generate a finished surface with an appropriate roughness on the inner peripheral wall.
- the work surface of the object is not limited to the cylindrical inner peripheral wall, but may be a cylindrical outer peripheral wall.
- the present invention can be applied not only to turning but also to other cutting processes such as planing and shaping by selecting an appropriate machine tool. That is, the shape of the work surface or finished surface is not limited to a cylindrical shape, and may be a conical shape or a flat plate shape.
- a finished surface with an appropriate roughness can be obtained without generating incomplete fracture fragments when machining a work surface.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/908,164 US10155268B2 (en) | 2005-03-11 | 2005-03-11 | Cutting edge configuration of cutting tool |
EP05720607.0A EP1859881B1 (en) | 2005-03-11 | 2005-03-11 | Cutting process |
PCT/JP2005/004336 WO2006097981A1 (ja) | 2005-03-11 | 2005-03-11 | 切削工具の切刃構造 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2005/004336 WO2006097981A1 (ja) | 2005-03-11 | 2005-03-11 | 切削工具の切刃構造 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006097981A1 true WO2006097981A1 (ja) | 2006-09-21 |
Family
ID=36991342
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/004336 WO2006097981A1 (ja) | 2005-03-11 | 2005-03-11 | 切削工具の切刃構造 |
Country Status (3)
Country | Link |
---|---|
US (1) | US10155268B2 (ja) |
EP (1) | EP1859881B1 (ja) |
WO (1) | WO2006097981A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010201554A (ja) * | 2009-03-03 | 2010-09-16 | Nissan Motor Co Ltd | 粗面加工具及び粗面加工方法 |
JP2015529569A (ja) * | 2012-07-31 | 2015-10-08 | ダイムラー・アクチェンゲゼルシャフトDaimler AG | 円筒形ボアの内面を粗面化するための方法及び工具 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104105811B (zh) * | 2012-03-06 | 2017-03-22 | 日产自动车株式会社 | 喷镀膜面的精加工方法及加工用刀具 |
KR102470584B1 (ko) * | 2017-07-13 | 2022-11-24 | 시티즌 도케이 가부시키가이샤 | 나사 절삭 가공장치 및 나사 절삭 가공방법 |
CN108378892B (zh) * | 2018-03-19 | 2023-12-15 | 广东工业大学 | 一种微创刨刀 |
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2005
- 2005-03-11 WO PCT/JP2005/004336 patent/WO2006097981A1/ja active Application Filing
- 2005-03-11 EP EP05720607.0A patent/EP1859881B1/en active Active
- 2005-03-11 US US11/908,164 patent/US10155268B2/en active Active
Patent Citations (5)
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GB1117199A (en) | 1965-10-11 | 1968-06-19 | Gen Electric | Improvements in cutting tools |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2010201554A (ja) * | 2009-03-03 | 2010-09-16 | Nissan Motor Co Ltd | 粗面加工具及び粗面加工方法 |
JP2015529569A (ja) * | 2012-07-31 | 2015-10-08 | ダイムラー・アクチェンゲゼルシャフトDaimler AG | 円筒形ボアの内面を粗面化するための方法及び工具 |
US9533360B2 (en) | 2012-07-31 | 2017-01-03 | Daimler Ag | Method and tool for roughening an inner surface of a cylindrical bore |
Also Published As
Publication number | Publication date |
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EP1859881A4 (en) | 2011-07-06 |
US20090297283A1 (en) | 2009-12-03 |
EP1859881B1 (en) | 2017-02-22 |
US10155268B2 (en) | 2018-12-18 |
EP1859881A1 (en) | 2007-11-28 |
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