WO2010050227A1 - 孔内面の切削工具、および孔内面の切削方法 - Google Patents
孔内面の切削工具、および孔内面の切削方法 Download PDFInfo
- Publication number
- WO2010050227A1 WO2010050227A1 PCT/JP2009/005764 JP2009005764W WO2010050227A1 WO 2010050227 A1 WO2010050227 A1 WO 2010050227A1 JP 2009005764 W JP2009005764 W JP 2009005764W WO 2010050227 A1 WO2010050227 A1 WO 2010050227A1
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- WO
- WIPO (PCT)
- Prior art keywords
- cutting
- hole
- coolant
- cutting edge
- tool body
- Prior art date
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Classifications
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- 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
- B23B27/007—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor for internal turning
-
- 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
- B23B27/10—Cutting tools with special provision for cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
- B23B29/04—Tool holders for a single cutting tool
- B23B29/043—Tool holders for a single cutting tool with cutting-off, grooving or profile cutting tools, i.e. blade- or disc-like main cutting parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2220/00—Details of turning, boring or drilling processes
- B23B2220/12—Grooving
- B23B2220/123—Producing internal grooves
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- 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
- Y10T407/14—Cutters, for shaping with means to apply fluid to cutting tool
-
- 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
- Y10T82/00—Turning
- Y10T82/10—Process of turning
-
- 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
- Y10T82/00—Turning
- Y10T82/16—Severing or cut-off
- Y10T82/16065—Combined with means to apply fluid
Definitions
- the present invention relates to a cutting tool for an inner surface of a hole for cutting an inner peripheral surface of a hole formed in a rotating work material and a method for cutting an inner surface of a hole.
- Patent Document 1 as a tool for grooving the inner peripheral surface of a hole, a grooving insert is detachably attached to a support portion protruding radially outward with respect to the central axis of the tool body, and a cutting edge portion What is said to have been described.
- a concave groove is formed on the mounting surface of the support portion on which the seating surface of the grooving insert is mounted.
- coolant cutting fluid
- cutting fluid is supplied to the inner peripheral surface of the hole through the ejection hole formed by the concave groove and the seating surface, and thereby the cutting edge of the insert and The cutting edge of the annular groove is cooled and lubricated by the cutting blade.
- the coolant is supplied into the annular groove from directly below the flank face connected to the cutting edge of the cutting edge portion. Is supplied to the cutting portion approximately once around the cutting edge. For this reason, during one round of this, the coolant may scatter and not spread sufficiently to the cutting site, or the coolant may be heated and the cooling effect of the cutting blade may be impaired.
- a concave groove is formed on the mounting surface on which the seating surface of the grooving insert is placed as described above, and the coolant is ejected from the ejection hole formed by the concave groove and the seating surface. Therefore, the size of the ejection hole (width of the concave groove) cannot be made larger than that of the mounting surface or the seating surface. Therefore, it becomes difficult to supply a sufficient amount of coolant. Moreover, the seating area of the insert is reduced by forming the concave groove on the mounting surface. Furthermore, there is a possibility that coolant having lubricity may permeate between the mounting surface and the insert seating surface.
- the present invention has been made under such a background, and even if it is an insert detachable tool, a sufficient amount of coolant is reliably distributed to the cutting site without impairing the insert seating stability. It is an object of the present invention to provide a hole inner surface cutting tool and a hole inner surface cutting method capable of improving the cooling effect and the lubricating effect.
- a cutting tool for an inner surface of a hole includes a tool body extending in an axial shape, a cutting edge portion provided at a distal end portion of the tool body and projecting radially outward with respect to a central axis of the tool body, and the tool body Provided in the peripheral surface of the tip of the tool body at a position away from the cutting edge, and extends from the opening in a protruding direction in which the cutting edge protrudes perpendicular to the central axis.
- a coolant hole for ejecting coolant to the plane perpendicular to the axis. The opening of the coolant hole is directed in a direction different from the protruding direction of the cutting edge portion in the radial direction with respect to the central axis.
- the hole inner surface cutting method includes a cutting tool on an inner surface of a hole in which a cutting edge portion projecting radially outward with respect to a central axis of the tool body is provided at a tip portion of a tool body extending in an axial shape.
- the inner peripheral surface of the hole formed in the rotating work material is processed by the cutting blade portion, the inner peripheral surface of the hole is orthogonal to the central axis of the tool body and protrudes from the cutting blade portion.
- An annular groove recessed from the inner peripheral surface is formed so as to be along a portion intersecting the axis orthogonal plane along the direction. Therefore, in the cutting tool for the inner surface of the hole and the method for cutting the inner surface of the hole according to the present invention, the coolant is ejected toward the plane perpendicular to the axis, and the coolant is held in the groove by the centrifugal force acting on the work material. .
- the opening of the coolant hole of the cutting tool is provided at a position away from the cutting edge in the circumferential direction of the tool body, and faces in a direction different from the protruding direction of the cutting edge in the radial direction with respect to the central axis.
- the coolant hole opening faces in a different direction from the cutting edge. The coolant can be surely spread to the cutting site by rotating.
- the coolant hole opens in a direction different from the protruding direction of the cutting blade portion at a position away from the position where the cutting blade portion protrudes. Therefore, even if the cutting edge portion is configured by detachably attaching an insert such as a grooving to the tool body, depending on the seating surface of the grooving insert and the mounting surface on which the seating surface is placed.
- the size of the coolant hole is not limited, and the coolant can be ejected with a sufficient supply amount.
- the formation of the coolant hole does not impair the strength of the cutting edge, nor does it impair the seating stability when the grooving insert is mounted.
- the opening of the coolant hole has a cutting edge in the circumferential direction of the tool body across an axis parallel plane perpendicular to the protruding direction of the cutting edge portion along the central axis. It may be located on the opposite side to the part.
- the peripheral surface of the tip of the tool body is divided into an area where the cutting edge is arranged in the center and a remaining area which does not include the cutting edge.
- the coolant hole opening may be present in the remaining region.
- the opening of the coolant hole is formed so that the cutting edge portion is radially in the radial direction with respect to the central axis with respect to an axis parallel plane perpendicular to the protruding direction of the cutting edge along the central axis. It may be formed in a direction opposite to the protruding direction. That is, when the front end portion of the tool body is viewed from the central axis direction, the opening of the coolant hole may face the direction opposite to the front end of the cutting edge portion.
- the coolant hole opens in the direction opposite to the protruding direction of the cutting edge, the maximum time from when the coolant is supplied to the inner peripheral surface of the hole until the cutting part by the cutting edge is reached by the rotation of the work material.
- it can be suppressed to about 3/4 of the rotation of the work material, it is possible to suppress scattering and heating of the coolant.
- the opening of the coolant hole may be formed so as to eject the coolant in a direction oblique to the plane perpendicular to the axis.
- the cutting edge portion is a grooving cutting edge portion that forms an annular groove centered on the rotation axis on the inner peripheral surface of a hole formed in a work material. Also good. As a result, the coolant sprayed toward the inner peripheral surface can be reliably held by the annular groove and spread to the cutting site.
- a sufficient amount of coolant is reliably distributed to the cutting site without impairing the strength of the cutting edge portion or the stability when the insert is attached, thereby improving the cooling effect and the lubricating effect. Can do. As a result, it is possible to achieve a stable and smooth machining by reducing the cutting resistance and extending the life of the cutting edge.
- FIG. 1 is a perspective view showing a first embodiment of a cutting tool of the present invention.
- FIG. 2 is a plan view of the embodiment shown in FIG.
- FIG. 3 is a side view of the embodiment shown in FIG. 1 as viewed from the side of the other side surface 14 (the other coolant hole 17B is not shown).
- FIG. 4 is a side view of the embodiment shown in FIG. 1 viewed from one side 13 side.
- FIG. 5 is a view of the embodiment shown in FIG. 1 as viewed from the front end side in the central axis O direction.
- 6 is a view of the embodiment shown in FIG. 1 as viewed from the rear end side in the central axis O direction.
- FIG. 1 is a perspective view showing a first embodiment of a cutting tool of the present invention.
- FIG. 2 is a plan view of the embodiment shown in FIG.
- FIG. 3 is a side view of the embodiment shown in FIG. 1 as viewed from the side of the other side surface 14 (the other coolant hole 17B
- FIG. 7A is a view used for explaining an embodiment of the cutting method of the present invention when cutting the inner surface of the hole according to the embodiment shown in FIG. 1, from the front end side in the central axis O direction of the tool body 1.
- FIG. 7B is a view used to explain an embodiment of the cutting method of the present invention when cutting the inner surface of the hole according to the embodiment shown in FIG. is there.
- FIG. 8A is a diagram used to explain an embodiment of the cutting method of the present invention when cutting the inner surface of the hole according to the embodiment shown in FIG. 1, and is from the front end side in the central axis O direction of the tool body 1.
- FIG. 8B is a view used to explain an embodiment of the cutting method of the present invention when cutting the inner surface of the hole according to the embodiment shown in FIG. 1, and is a view of the tool body 1 seen in a plan view. is there.
- FIG. 9A is a diagram used for explaining an embodiment of the cutting method of the present invention when cutting the inner surface of the hole according to the embodiment shown in FIG. 1, and is from the front end side of the tool body 1 in the central axis O direction.
- FIG. FIG. 9B is a view used for explaining an embodiment of the cutting method of the present invention when cutting the inner surface of the hole according to the embodiment shown in FIG. 1, and is a view of the tool body 1 seen in a plan view. is there.
- FIG. 9A is a diagram used for explaining an embodiment of the cutting method of the present invention when cutting the inner surface of the hole according to the embodiment shown in FIG. 1, and is from the front end side of the tool body 1 in the central axis O direction.
- FIG. 9B is a view used for
- FIG. 10 is a perspective view showing a second embodiment of the cutting tool of the present invention.
- FIG. 11 is a plan view of the embodiment shown in FIG.
- FIG. 12 is a side view of the embodiment shown in FIG. 10 viewed from the side of the other side surface 14 (the other coolant hole 17B is not shown).
- FIG. 13 is a side view of the embodiment shown in FIG. 10 viewed from one side 13 side.
- 14 is a view of the embodiment shown in FIG. 10 as viewed from the front end side in the direction of the central axis O (the other coolant hole 17B is not shown).
- 15 is a view of the embodiment shown in FIG. 10 as viewed from the rear end side in the central axis O direction.
- FIGS. 1 to 6 show a first embodiment of a cutting tool for an inner surface of a hole of the present invention
- FIGS. 7A to 9B show a cutting method of the present invention using the cutting tool of the first embodiment.
- the tool body 1 of the cutting tool of the present embodiment includes a holder 10 whose outer shape centering on the central axis O is substantially cylindrical, and a tip portion of the holder 10 (the left side portion in FIGS. 2 and 4, and in FIG. 3).
- a head member 20 that is detachably attached to the right side portion.
- a detachable cutting insert 30 is attached to the head member 20, and the head member 20 protrudes in one radial direction with respect to the central axis O (downward in FIG. 2, rightward in FIG. 5 and leftward in FIG. 6).
- the blade part 40 is comprised.
- the holder 10 is formed of a steel material or the like, and the rear end portion (the right side portion in FIGS. 2 and 4 and the left side portion in FIG. 3) is a shank portion 11 having a cylindrical shape.
- a pair of flat cut-out surfaces 12 are formed on the upper and lower portions thereof in parallel with the central axis O and in parallel with each other along the protruding direction. And the said holder 10 is fixed to a machine tool by hold
- the tip of the holder 10 has the protruding direction side of two directions (vertical direction in FIG. 2 and horizontal direction in FIGS. 5 and 6) perpendicular to the central axis O and parallel to the notch surface 12.
- One side surface 13 which faces is formed so as to be greatly cut out on the inner peripheral side rather than the outer diameter of the shank portion 11.
- the other side surface 14 facing the opposite side to the protruding direction across the central axis O and the upper and lower surfaces 15, 16 have a larger diameter than the one side surface 13 with respect to the central axis O.
- the outer diameter is slightly smaller than the outer diameter of the shank portion 11.
- an inclined surface 15A is formed on the upper surface 15 of the tip of the holder 10 so as to be gently inclined toward the lower surface 16 slightly toward the tip.
- a counterbore portion 15B having a bottom surface that is steeper than the inclined surface 15A and further inclines toward the lower surface 16 as it goes toward the tip side opens to the tip side. It is formed to do.
- a screw hole (not shown) is vertically formed on the bottom surface of the counterbore portion 15B.
- a bottomed depression (dimple) 14 ⁇ / b> A that is recessed in an elliptical spherical shape extending in the direction of the central axis O is formed on the other side surface 14 on the shank portion 11 side.
- the front end surface of the holder 10 is a flat surface perpendicular to the central axis O except that a convex portion 16A is formed on the lower surface 16 side.
- a concave portion 16B extending in a direction perpendicular to the notch surface 12 (up and down direction in FIGS. 4 to 6) is formed at the corner where the front end surface and the one side surface 13 and the lower surface 16 intersect with each other.
- the one side surface 13 is a flat surface extending in a direction parallel to the central axis O and perpendicular to the notch surface 12 on the front end side where the concave portion 16B is formed.
- a portion between the side shank portion 11 and the shank portion 11 is formed in a cylindrical surface shape having a radius larger than the radius of the shank portion 11 and slightly bulging toward the protruding direction.
- the head member 20 is formed of a steel material or the like.
- An L-shaped concave portion 21 ⁇ / b> A into which the convex portion 16 ⁇ / b> A on the front end surface of the holder 10 is fitted is formed on the lower edge of the outer flat plate-shaped main body 21.
- a rectangular plate-like convex portion 21B fitted into the concave portion 16B is integrally formed so as to protrude vertically. Then, the convex portion 16A is fitted into the concave portion 21A, and the convex portion 21B is fitted into the concave portion 16B, and the one side surface is brought into close contact with the front end surface of the holder 10.
- a slit-like insert mounting seat 23 extending from the periphery of the central axis O of the holder 10 toward the protruding direction passes through the main body 21 in the thickness direction. It is formed so as to open to the protruding direction side.
- the main body 21 is connected to the lower jaw portion 24 through which the mounting screws 22A and 22B are inserted, including the convex portion 21B, by the insert mounting seat 23, and the lower jaw portion 24 on the side opposite to the projecting direction and the insert mounting seat. 23, the lower jaw portion 24 and the upper jaw portion 25 arranged opposite to each other.
- the upper jaw portion 25 is formed in a concave curved surface such that the surface facing the protruding direction side gradually protrudes toward the protruding direction side toward the lower jaw portion 24 side.
- the protruding end is located inside the outer diameter of the cylinder formed by the shank portion 11 in the radial direction with respect to the central axis O.
- the surface of the lower jaw portion 24 facing the protruding direction is formed so as to form a substantially convex arc surface with the central axis O as the center.
- the radius of the convex arc is made larger than the radius of the cylinder formed by the shank portion 11 and projects in the projecting direction.
- the thickness of the protruding portion of the upper and lower jaw portions 24 and 25 in the direction of the central axis O is smaller than the length of the cutting blade 31 of the cutting insert 30 described later.
- a counterbore portion 25 ⁇ / b> A having a bottom surface that forms a circle together with the bottom surface of the counterbore portion 15 ⁇ / b> B is formed with the head member 20 attached to the tip of the holder 10.
- the bottom surface on the counterbore portion 25A side includes a step so as to protrude one step from the bottom surface on the counterbore portion 15B side.
- the one side surface of the upper jaw portion 25 that is in close contact with the front end surface of the holder 10 is recessed from the one side surface and extends toward the projecting direction side, and the base of the concave curved surface that faces the projecting direction side of the upper jaw portion 25.
- a concave groove 25B having a U-shaped cross section that opens to the end side is formed.
- the insert mounting seat 23 formed between the upper and lower jaw portions 24 and 25 has upper and lower surfaces opposite to each other of the lower jaw portion 24 and the upper jaw portion 25 formed in an inverted V shape when viewed from the protruding direction side. Yes.
- a contact surface facing the protruding direction is formed between the upper and lower surfaces.
- the slit 23A having a width smaller than the interval between the insert mounting seats 23 does not reach the side surface facing the opposite side of the protruding direction of the main body 21,
- the connection part 26 of the upper and lower jaw parts 24 and 25 is formed so that it may remain.
- the slit 23A is bent toward the upper jaw 25 toward the opposite side to the protruding direction, and one of the mounting screws 22A is inserted on the opposite side to the protruding direction.
- the main body 21 is formed so as to extend in a circular arc shape coaxial with the insertion hole of the main body 21.
- the central angle of the arc formed by the slit 23A is preferably in the range of 20 ° to 50 °.
- the connecting portion 26 remaining between the slit 23A and the side surface facing the opposite side of the protruding direction of the main body 21 has a wall thickness (thickness in a direction along the arc formed by the slit 23A) of the central axis O. The direction gradually increases in the direction toward the rear end side of the holder 10.
- the main body 21 of the head member 20 has an inner wall surface continuous to the circumference on the other side surface facing the front end side in a state of being attached to the holder 10 opposite to the one side surface,
- a plurality of recesses 27 are formed which have a bottom surface continuous over the entire circumference and are recessed from the other side surface without penetrating the main body 21 of the head member 20.
- Such recesses 27 may be formed on the one side surface that is in close contact with the front end surface of the holder 10, but when the recesses 27 are thus formed on both side surfaces, these recesses 27 are It is desirable that they are formed in different shapes when viewed from the direction facing each side surface.
- the plurality of recesses 27 may have different depths of recesses when viewed from the side.
- the main body 21 of the head member 20 having such a recess 27 is obtained by reversing the shape of the head member 20 from a material that is made fluid by kneading, for example, a fine powder of steel material and a binder such as a resin. It can be manufactured by MIM (Metal Injection Molding) method in which the binder is removed by heating and the raw material fine powder is sintered after injection molding in the split mold.
- MIM Metal Injection Molding
- the volume of the recess 27 is in the range of 2% to 15% of the volume of the main body 21 where the recess 27 is not formed.
- the surface of the main body 21 is preferably subjected to shot peening after sintering.
- the cutting insert 30 attached to the insert attachment seat 23 of the head member 20 as described above is formed in a square bar shape whose outer shape is substantially square in cross section by a hard material such as cemented carbide, and the upper and lower jaw portions of the insert attachment seat 23. 24, 25. Both the lower surface and the center of the upper surface of the cutting insert 30 are formed in a V-shaped cross section, whereas the upper and lower jaw portions 24 and 25 of the insert mounting seat 23 are raised in an inverted V shape.
- the lower surface of the cutting insert 30 can be brought into contact with the lower jaw portion 24, and the central portion of the upper surface of the cutting insert 30 can be brought into contact with the upper jaw portion 25 so that the respective V-shaped bisectors coincide with each other. Further, rake faces are formed at both ends of the upper surface at positions one step backward from the center, and cutting edges 31 used for grooving are formed at both edges of these rake faces. .
- the cutting insert 30 is configured so that the lower surface and the center portion of the upper surface are brought into sliding contact with the upper and lower surfaces of the upper and lower jaw portions 24 and 25 of the insert mounting seat 23, respectively. It is inserted into the insert mounting seat 23 along the radial direction perpendicular to the central axis O from the protruding direction side toward the protruding direction. Further, when the end surface of the cutting insert 30 connected to the other cutting edge 31 exceeds the central axis O and contacts the contact surface of the insert mounting seat 23, the insert mounting seat is positioned in the radial direction with respect to the central axis O. Sitting on 23.
- a headed clamp screw 32 is screwed into the screw hole of the counterbore part 15B, and the counterbore part 25A of the upper jaw part 25 is pressed by the head, so that the upper jaw part 25 becomes the lower jaw part with the connection part 26 as a fulcrum. It is elastically deformed so as to bend toward the 24 side.
- the cutting insert 30 is fixed to the insert mounting seat 23 so as to be clamped between the upper jaw portion 25 and the lower jaw portion 24. Furthermore, in this clamped state, one cutting edge 31 of the cutting insert 30 oriented in the protruding direction is arranged in parallel with the central axis O of the holder 10.
- the distance from the central axis O is slightly larger than the radius of the convex arc formed by the surface facing the protruding direction side of the lower jaw 24, so that the cutting tool protrudes most radially outward from the central axis O. To do. Thereby, the above-mentioned cutting blade part 40 is comprised.
- the holder 10 of the tool body 1 is formed with a coolant hole 17 for supplying coolant (cutting fluid) fed from the machine tool side toward the tip side from the rear end surface along the center axis O.
- the coolant hole 17 is branched into two in the tip portion of the holder 10 as shown in FIG.
- One of the coolant holes 17A has an opening at a position away from the cutting edge portion 40 on the peripheral surface of the tip of the holder 10, and the opening has a direction different from the protruding direction in the radial direction with respect to the central axis O. It is suitable.
- the coolant C is ejected to the axis orthogonal plane P that is orthogonal to the central axis O and extends in the protruding direction of the cutting edge portion 40.
- the branched coolant hole 17A in the present embodiment has a smaller diameter than the coolant hole 17 extending along the central axis O from the rear end surface of the holder 10, and extends in the protruding direction along the central axis O.
- an opening is formed on the side opposite to the cutting edge portion 40 in the circumferential direction of the tool main body 1 with the orthogonal axis parallel plane Q interposed therebetween.
- the circumferential surface of the tip of the tool body 1 has a substantially half-cylinder shape with the cutting edge 40 disposed in the center with the axis parallel plane Q as a boundary.
- the opening of the coolant hole exists in the remaining semi-cylindrical region not including the cutting edge portion 40.
- an opening is formed in a portion between the other side surface 14 and the upper surface 15 of the tip of the holder 10.
- the coolant hole 17A extends in a straight line and inclines toward the distal end side from the distal end of the coolant hole 17 toward the outer peripheral side, and in a direction oblique to the axis orthogonal plane P. C is ejected.
- the coolant hole 17A is branched from the coolant hole 17 along the center axis O and opens straight on the outer peripheral surface of the tool body 1, so that the coolant hole 17A opens in the radial direction with respect to the center axis O. However, it is directed to the axis parallel plane Q opposite to the protruding direction of the cutting edge portion 40. That is, when the tip end of the tool body 1 is viewed from the direction of the central axis O, the opening of the coolant hole 17A faces in the direction opposite to the tip of the cutting edge portion 40.
- a radial direction with respect to the central axis O at a position of about 135 ° in a direction (counterclockwise direction in FIG. 5) in which the rake face faces from the protruding cutting edge 31 around the central axis O. Open toward.
- the coolant hole 17 extending from the rear end surface of the holder 10 is branched into two at the front end portion of the holder 10 as described above.
- the other coolant hole 17B branched in this way extends toward the opposite side of the coolant hole 17A (projection direction side of the cutting edge portion 40) across the axis parallel plane Q.
- the head member 20 that is in close contact with the distal end surface is opened at a position communicating with the concave groove 25B formed on the one side surface of the main body 21.
- a concave groove 17C extending in the projecting direction is formed along the concave groove 25B on the front end surface, and the protrusion of the front end portion of the holder 10 is formed.
- An opening is formed on one side surface 13 facing the direction side.
- the concave groove 17C has, for example, a semicircular cross section whose opening width to the tip of the holder 10 is larger than that of the concave groove 25B at the opening to the side surface 13, and the groove depth is the opening to the side surface 13. It becomes shallower gradually toward the protrusion direction, that is, toward the protruding direction side.
- the cutting method of the present invention using such an insert detachable cutting tool first, it is preliminarily formed on a work material W that is rotated around a rotation axis L as indicated by an arrow in FIG. 7A.
- the tip of the holder 10 of the tool body 1 is inserted into the hole H.
- the center axis O is parallel to the rotation axis L, and the tip portion including the protruding cutting edge portion 40 does not interfere with the hole H. Insert into H to the position where grooving is performed by the cutting edge portion 40.
- the radial direction relative to the central axis O with respect to the axis orthogonal plane P is different from the protruding direction.
- the coolant C is jetted out.
- the coolant C thus ejected is supplied into the groove G along the axis orthogonal plane P.
- the coolant C thus supplied into the groove G is held in the groove G by the centrifugal force generated by the rotation of the work material W, and the cutting edge 40 is rotated along with the rotation of the work material W. It reaches the cutting site by the cutting blade 31. Therefore, in the cutting tool having the above-described configuration and the cutting method using the same, it is possible to effectively cool and lubricate the cutting edge 31 and the work material W at the cutting site. Further, since the coolant C is ejected toward the axis orthogonal plane P in this way, the coolant hole 17A is formed so as to eject the coolant C in a direction oblique to the axis orthogonal plane P as in the present embodiment, for example. Even if formed, the coolant C can be supplied to the groove G until the groove G is formed to a certain depth as shown in FIGS. 9A and 9B.
- the coolant hole 17B opens in a direction different from the projecting direction at a position away from the projecting position of the cutting edge portion 40, the coolant C can be reliably supplied to the cutting site. .
- the size of the coolant hole is higher than this. There is no limit imposed by the thickness of the lower jaw portions 24 and 25.
- the rigidity of the cutting edge part 40 is not impaired, and the seating stability of the cutting insert 30 is not inhibited.
- the coolant C is held in the groove G and reliably supplied to the cutting site without being scattered by centrifugal force. Furthermore, since the coolant C is supplied to a position different from the cutting edge portion 40 and reaches the cutting site before making one round from the supply position by the rotation of the work material W, the cooling effect of the coolant C is not impaired. Therefore, according to the cutting tool and the cutting method having the above-described configuration, the cutting resistance can be reduced by lubrication, and the life of the cutting edge portion 40 can be extended by cooling, thereby realizing stable and smooth cutting. Is possible.
- the coolant hole 17A opens on the opposite side of the tool blade 1 from the cutting edge portion 40 with the axis parallel plane Q interposed therebetween.
- the interval gradually widens according to the cut amount. .
- the coolant C can be reliably ejected and held in the groove G formed on the inner peripheral surface of the hole H, and a more sufficient amount of the coolant C can be supplied to the cutting site.
- the coolant hole 17A is opened on the opposite side of the cutting edge portion 40 across the axis parallel plane Q, and in this embodiment, the direction in which the coolant hole 17A is opened in the radial direction is also determined by this axis. It is opposite to the protruding direction of the cutting edge portion 40 with respect to the parallel plane Q.
- the coolant C is supplied to the inner peripheral surface of the hole H on the opposite side of the cutting blade portion 40 across the axis parallel plane Q. Therefore, even if the coolant C is supplied from the cutting edge portion 40 around the central axis O to the rotation direction side of the work material W at a position of 90 °, the time from this position to the cutting site is about 3/4 round. Can be suppressed.
- the coolant does not reach the cutting site unless it makes one round, whereas the coolant C is reliably prevented from being scattered or heated. it can.
- the coolant hole 17A is formed on the opposite side of the cutting edge portion 40 across the axis parallel plane Q, the coolant hole 17A opens toward the same side as the protruding direction of the cutting edge portion 40 with respect to the axis parallel plane Q. If it does, there exists a possibility that the coolant C may be supplied to the position below 90 degrees from the cutting-blade part 40 to the rotation direction side of the workpiece W.
- the direction in which the coolant hole 17A of the present embodiment opens in the direction of the central axis O of the tool body 1 is formed so as to eject the coolant C in a direction oblique to the axis orthogonal plane P. Accordingly, since the coolant hole 17A is not formed on the axis orthogonal plane P where the cutting edge portion 40 of the tool body 1 is located, the tool body 1 at the position of the cutting edge portion 40 where the cutting load acts. The rigidity of can be improved. Further, it is possible to prevent the machining accuracy from being lost due to vibrations in the tool body 1 during cutting.
- the cutting blade portion 40 of the present embodiment is a grooving cutting blade portion in which a cutting insert 30 for grooving is attached to the insert mounting seat 23, and by cutting in the radial direction with respect to the rotation axis L, On the inner peripheral surface of the hole H, an annular groove G is formed that makes one round continuously around the rotation axis L.
- the cutting edge 31 of the cutting insert 30 is parallel to the central axis O, and a groove “G” having a “U” cross section is formed on the inner peripheral surface of the hole H.
- the coolant C supplied to the groove G is less likely to flow out from the groove G in the direction of the rotation axis L and also in the circumferential direction of the hole H, and the coolant C is more efficiently applied to the cutting site. It becomes possible to supply.
- the other coolant hole 17B branched from the coolant hole 17 is formed so as to open to the proximal end side of the projecting blade portion 40 from which it protrudes. Since the coolant C is also ejected from the coolant hole 17B, it is possible to further improve the lubrication and cooling effect.
- the coolant hole 17B communicates with a concave groove 25B formed in the main body 21 of the head member 20 to which the cutting insert 30 is mounted, and is formed at a cutting site by the cutting blade 31 so as to be guided by the concave groove 25B. Directly supplied so that more effective lubrication and cooling can be promoted.
- the concave groove 25B communicating with the coolant hole 17B and guiding the coolant C is formed in the head member 20 attached to the tip of the holder 10 in this embodiment.
- the main body 21 of the head member 20 is formed by the MIM method as described above, it is only necessary to form a protrusion that forms the concave groove 25B in the injection mold.
- a coolant hole 17B branched from the coolant hole 17 is linearly formed by a drill or the like, and then a hole that is further bent is formed from the coolant hole 17B.
- the formation of the coolant hole 17B other than the bent hole can be made easier than sealing the opening of the coolant hole 17B.
- the coolant hole 17 is branched into two in this way to form the other coolant hole 17B.
- the present invention is not limited to the grooving process as described above. For example, after the cutting blade 31 is cut with a relatively small cut, the tool body 1 is fed out in the direction of the rotation axis L and the hole is formed.
- the present invention can also be applied when processing the inner peripheral surface of H into a predetermined inner diameter.
- the coolant hole 17A is ejected along the axis orthogonal plane P.
- the coolant hole 17 ⁇ / b> A may be formed on the outer peripheral surface of the tool body 1 on the axis orthogonal plane P so as to extend along the axis orthogonal plane P and open.
- the groove G formed by the cutting edge portion 40 can be used even when the radial position with respect to the rotation axis L of the tool body 1 due to the cutting edge 31 is cut or when the hole H having a different inner diameter is processed. It becomes possible to supply the coolant C more reliably.
- the coolant hole 17A opening on such an axis orthogonal plane P in order to form the coolant hole 17A opening on such an axis orthogonal plane P, the coolant hole 17B and Similarly, the coolant hole 17 ⁇ / b> A is formed so as to open at the front end surface of the holder 10. Then, the concave groove communicating with the coolant hole 17A is opened at a position away from the position where the cutting edge portion 40 protrudes in the circumferential direction of the tool body 1 in a direction different from the protruding direction of the cutting edge portion 40. Then, the coolant C may be formed along the axis orthogonal plane P so as to eject the coolant C to the axis orthogonal plane P.
- FIGS. 10 to 15 show a second embodiment of the cutting tool of the present invention, and the same reference numerals are used for elements common to the first embodiment shown in FIGS. The explanation is omitted. That is, the cutting tool of the present embodiment includes the holder 10 of the tool body 1 that is integrally formed from the shank portion 11 to the head portion 18 and has a separate head member 20 as in the first embodiment. Absent. A cutting insert 30 is detachably mounted on an insert mounting seat 23 formed directly at the tip of the head portion 18 of the holder 10 to constitute a cutting blade portion 40 that protrudes in the radial direction with respect to the central axis O.
- the head portion 18 has a slit 19 extending obliquely from the front end surface toward the rear end side toward the upper surface 15 side, and penetrates the head portion 18 from the protruding direction to the opposite side. It is formed as follows. A cutting insert 30 is inserted into an insert mounting seat 23 formed in an opening portion of the head portion 18 of the slit 19 and a clamp screw is inserted from the inclined surface 15A of the upper surface 15 so as to penetrate the slit 19 vertically. When 32 is screwed into the head portion 18, the cutting insert 30 is clamped and fixed.
- the coolant hole 17A is formed so as to open into a recess 14A formed on the other side surface 14 of the head portion 18 facing the side opposite to the protruding direction.
- the opening of the coolant hole 17A is in the radial direction with respect to the central axis O so that the coolant C is ejected with respect to the axis perpendicular to the axis P at a position away from the position where the cutting edge portion 40 protrudes in the circumferential direction of the tool body 1. It faces a direction different from the protruding direction of the cutting edge portion 40.
- the coolant hole 17A of the present embodiment sandwiches the central axis O in the circumferential direction at a position substantially opposite to the cutting edge portion 40 across the central axis O, and also in the radial direction across the central axis O with respect to the protruding direction. It is formed so as to open in a substantially opposite direction.
- the same effect as that of the first embodiment can be obtained.
- the head member 20 is not required, and the mounting screws 22A and 22B for fixing the head member 20 are not required. Therefore, the number of parts can be reduced and the cost can be reduced.
- the cutting edge portion 40 is configured by mounting the cutting insert 30.
- a brazing tool in which hard cutting blade members are joined by brazing or the like, or a solid cutting tool in which the cutting edge portion 40 itself is integrally formed with the tool body 1. is there.
- the present invention provides a tool body extending in an axial shape, a cutting edge portion provided at a distal end portion of the tool body, projecting radially outward with respect to a central axis of the tool body, and provided in the tool body.
- a peripheral surface of the tip of the main body has an opening at a position away from the cutting edge, and from the opening is perpendicular to the central axis and to the axis orthogonal plane along the protruding direction in which the cutting edge protrudes.
- a coolant hole for ejecting coolant.
- the opening of the coolant hole relates to a cutting tool having a bore life that faces a direction different from a protruding direction of the cutting edge portion in a radial direction with respect to the central axis. According to the present invention, it is possible to improve the cooling effect and the lubrication effect by reliably distributing a sufficient amount of coolant to the cutting site.
Abstract
Description
本願は、2008年10月29日に出願された日本国特許出願第2008-278308号について優先権を主張し、その内容をここに援用する。
10 ホルダ
11 シャンク部
13 ホルダ10先端部の一方の側面
14 ホルダ10先端部の他方の側面
17(17A、17B) クーラント穴
20 ヘッド部材
21 ヘッド部材20の本体
22A、22B 取付ネジ
23 インサート取付座
30 切削インサート
31 切削インサート30の切刃
40 切刃部
O 工具本体1の中心軸線
P 軸直交平面
Q 軸平行平面
W 被削材
H 加工孔
G 溝
C クーラント
L 被削材Wの回転軸線
Claims (6)
- 軸状に延びる工具本体と、
前記工具本体の先端部に設けられ、前記工具本体の中心軸線に対する径方向外周側に突出する切刃部と、
前記工具本体に設けられ、同工具本体の先端部の周面において前記切刃部から離れた位置に開口を有し、前記開口から、前記中心軸線に直交するとともに前記切刃部が突出する突出方向に沿った軸直交平面に対してクーラントを噴出するクーラント穴とを備え、
前記クーラント穴の開口は、前記中心軸線に対する径方向において前記切刃部の突出方向とは異なる方向を向いている孔内面の切削工具。 - 前記クーラント穴の開口は、前記中心軸線に沿って前記切刃部の突出方向に直交する軸平行平面を挟んで、前記工具本体の周方向において該切刃部とは反対側に位置している請求項1に記載の孔内面の切削工具。
- 前記クーラント穴の開口は、前記中心軸線に沿って前記切刃部の突出方向に直交する軸平行平面に対し、前記中心軸線に対する径方向において前記切刃部の突出方向とは反対向きに形成されている請求項2に記載の孔内面の切削工具。
- 前記クーラント穴の開口は、前記軸直交平面に対して斜交する方向に前記クーラントを噴出するように形成されている請求項1から3のいずれか一項に記載の孔内面の切削工具。
- 前記切刃部は、被削材に形成された孔の内周面に、前記回転軸線を中心とする環状溝を形成する溝入れ切刃部である請求項1から4のいずれか一項に記載の孔内面の切削工具。
- 軸状に延びる工具本体の先端部に前記工具本体の中心軸線に対する径方向外周側に突出する切刃部が設けられた孔内面の切削工具を、回転軸線回りに回転される被削材の前記回転軸線を中心に形成された孔に挿入する工程と、
前記切刃部を、前記孔に対して前記切刃部の突出方向に切り込ませることにより、前記孔の内周面を切削する工程と、
前記工具本体に設けられたクーラント穴の、同工具本体の周方向において前記切刃部から離れた位置にある開口から、前記中心軸線に直交するとともに前記切刃部の突出方向に沿った軸直交平面に対して、前記中心軸線に対する径方向において前記切刃部の突出方向とは異なる方向にクーラントを噴出させることにより、前記孔の内周面に前記クーラントを供給する工程とを備える孔内面の切削方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200980142774.5A CN102196872B (zh) | 2008-10-29 | 2009-10-29 | 孔内表面的切削工具以及孔内表面的切削方法 |
EP09823340.6A EP2345493B1 (en) | 2008-10-29 | 2009-10-29 | Cutting tool for machining an inner circumferential surface of a hole formed on a workpiece and method of machining |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008-278308 | 2008-10-29 | ||
JP2008278308A JP5559470B2 (ja) | 2008-10-29 | 2008-10-29 | 内径加工工具および内径加工方法 |
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WO2010050227A1 true WO2010050227A1 (ja) | 2010-05-06 |
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Application Number | Title | Priority Date | Filing Date |
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PCT/JP2009/005764 WO2010050227A1 (ja) | 2008-10-29 | 2009-10-29 | 孔内面の切削工具、および孔内面の切削方法 |
Country Status (6)
Country | Link |
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US (1) | US8342066B2 (ja) |
EP (1) | EP2345493B1 (ja) |
JP (1) | JP5559470B2 (ja) |
KR (1) | KR20110081218A (ja) |
CN (1) | CN102196872B (ja) |
WO (1) | WO2010050227A1 (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITTO20060724A1 (it) * | 2006-10-09 | 2008-04-10 | Alenia Aeronautica Spa | Utensile e metodo di fresatura, in particolare per la fresatura di materiali compositi |
JP5309894B2 (ja) * | 2008-10-29 | 2013-10-09 | 三菱マテリアル株式会社 | インサート着脱式切削工具 |
DE102011016148A1 (de) * | 2011-03-28 | 2012-10-04 | Ernst Graf Gmbh | Werkzeug zur spanenden Bearbeitung eines Werkstücks mit seitlichem Kühlmittelaustritt |
KR20140026172A (ko) * | 2012-08-24 | 2014-03-05 | 대구텍 유한회사 | 내경 가공용 선삭 공구 |
JP5660175B2 (ja) * | 2013-09-03 | 2015-01-28 | 三菱マテリアル株式会社 | 内径加工工具および内径加工方法 |
EP2898967B9 (de) * | 2014-01-27 | 2021-08-11 | Rosswag GmbH | Abstechhalter und Herstellverfahren des Abstechhalters |
JP6285326B2 (ja) * | 2014-09-05 | 2018-02-28 | 日本特殊陶業株式会社 | バイト用ホルダ及び切削工具 |
US9643282B2 (en) | 2014-10-17 | 2017-05-09 | Kennametal Inc. | Micro end mill and method of manufacturing same |
WO2016068120A1 (ja) * | 2014-10-29 | 2016-05-06 | 京セラ株式会社 | ホルダ、切削工具及び切削加工物の製造方法 |
US10946452B2 (en) * | 2015-06-30 | 2021-03-16 | Seco Tools Ab | Cutting tool and a nozzle with internally extending grooves |
DE112017004141T5 (de) * | 2016-08-19 | 2019-05-02 | Kyocera Corporation | Schneidwerkzeug und Verfahren zur Herstellung eines maschinell-bearbeiteten Produkts unter Verwendung desselben |
DE102017123786A1 (de) | 2017-10-12 | 2019-04-18 | Hartmetall-Werkzeugfabrik Paul Horn Gmbh | Halter für ein Nutstoßwerkzeug |
US11904393B1 (en) | 2022-08-18 | 2024-02-20 | Iscar, Ltd. | External grooving insert holder having upper and lower jaws connected by angled hinge portion with cooling channel extending through hinge portion, and cutting tool |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07237006A (ja) | 1994-02-22 | 1995-09-12 | Mitsubishi Materials Corp | 溝入れ用工具 |
JP2007185765A (ja) * | 2006-01-10 | 2007-07-26 | Sandvik Intellectual Property Ab | 内径旋削用のボーリングバー |
JP2007268695A (ja) * | 2006-03-31 | 2007-10-18 | Kyocera Corp | 切削工具およびホルダ |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3543613A (en) * | 1968-12-13 | 1970-12-01 | Special Drill & Reamer Corp | Rotary cutting tool |
US3597817A (en) * | 1969-03-20 | 1971-08-10 | Howard M Whalley | Tee-slot cutter and method for using it |
US4072438A (en) * | 1976-07-26 | 1978-02-07 | Trw Inc. | Insert type drill and insert therefor |
US4979853A (en) * | 1990-01-26 | 1990-12-25 | Ford Motor Company | Cutting tool holder for high speed spindle machining system |
IL115544A (en) * | 1995-10-06 | 1998-12-06 | Iscar Ltd | Cutting tool system with replaceable adapter |
NO307795B1 (no) * | 1997-10-17 | 2000-05-29 | Norsk Hydro As | Fremgangsmõte samt utstyr for bearbeiding av karbonlegemer |
SE526174C2 (sv) | 2002-07-01 | 2005-07-19 | Seco Tools Ab Publ | Koppling vid verktyg för spånavskiljande bearbetning där kopplingsdelarna endast kan monteras i ett läge |
US7104171B1 (en) * | 2005-05-14 | 2006-09-12 | Kennametal Inc. | Toolholder and toolholder assembly for a cutting insert positioned at a non-conventional height |
US20080083307A1 (en) * | 2006-10-05 | 2008-04-10 | Giannetti Enrico R | Machine tool post having coolant distribution system |
JP5309894B2 (ja) * | 2008-10-29 | 2013-10-09 | 三菱マテリアル株式会社 | インサート着脱式切削工具 |
-
2008
- 2008-10-29 JP JP2008278308A patent/JP5559470B2/ja active Active
-
2009
- 2009-09-04 US US12/585,137 patent/US8342066B2/en active Active
- 2009-10-29 EP EP09823340.6A patent/EP2345493B1/en active Active
- 2009-10-29 CN CN200980142774.5A patent/CN102196872B/zh active Active
- 2009-10-29 WO PCT/JP2009/005764 patent/WO2010050227A1/ja active Application Filing
- 2009-10-29 KR KR1020117009377A patent/KR20110081218A/ko unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07237006A (ja) | 1994-02-22 | 1995-09-12 | Mitsubishi Materials Corp | 溝入れ用工具 |
JP2007185765A (ja) * | 2006-01-10 | 2007-07-26 | Sandvik Intellectual Property Ab | 内径旋削用のボーリングバー |
JP2007268695A (ja) * | 2006-03-31 | 2007-10-18 | Kyocera Corp | 切削工具およびホルダ |
Non-Patent Citations (1)
Title |
---|
See also references of EP2345493A4 |
Also Published As
Publication number | Publication date |
---|---|
EP2345493A4 (en) | 2012-03-28 |
KR20110081218A (ko) | 2011-07-13 |
EP2345493A1 (en) | 2011-07-20 |
JP5559470B2 (ja) | 2014-07-23 |
EP2345493B1 (en) | 2015-01-28 |
CN102196872B (zh) | 2014-04-30 |
US8342066B2 (en) | 2013-01-01 |
CN102196872A (zh) | 2011-09-21 |
JP2010105108A (ja) | 2010-05-13 |
US20100178116A1 (en) | 2010-07-15 |
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