WO2018198929A1 - Insert pour fraise à rainure, et fraise à rainure - Google Patents

Insert pour fraise à rainure, et fraise à rainure Download PDF

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Publication number
WO2018198929A1
WO2018198929A1 PCT/JP2018/016135 JP2018016135W WO2018198929A1 WO 2018198929 A1 WO2018198929 A1 WO 2018198929A1 JP 2018016135 W JP2018016135 W JP 2018016135W WO 2018198929 A1 WO2018198929 A1 WO 2018198929A1
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WO
WIPO (PCT)
Prior art keywords
region
face
insert
flank
recess
Prior art date
Application number
PCT/JP2018/016135
Other languages
English (en)
Japanese (ja)
Inventor
石田　琢也
Original Assignee
京セラ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 京セラ株式会社 filed Critical 京セラ株式会社
Priority to JP2019514440A priority Critical patent/JP6941163B2/ja
Priority to CN201880026954.6A priority patent/CN110582365A/zh
Publication of WO2018198929A1 publication Critical patent/WO2018198929A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/02—Milling-cutters characterised by the shape of the cutter
    • B23C5/08—Disc-type cutters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/16—Milling-cutters characterised by physical features other than shape
    • B23C5/20—Milling-cutters characterised by physical features other than shape with removable cutter bits or teeth or cutting inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/16—Milling-cutters characterised by physical features other than shape
    • B23C5/20—Milling-cutters characterised by physical features other than shape with removable cutter bits or teeth or cutting inserts
    • B23C5/22—Securing arrangements for bits or teeth or cutting inserts

Definitions

  • This aspect relates to a slot mill insert and a slot mill.
  • Rotating tools equipped with cutting inserts are used when performing cutting such as grooving on a work material in order to produce a cut product.
  • International Publication No. 2012/173255 Patent Document 1 describes a rotary tool (slot mill) used for slot machining, which is an example of cutting.
  • the rotary tool described in Patent Literature 1 includes a tool body (holder) having an insert mounting seat (pocket), an insert disposed on the insert mounting seat, and a mounting screw for fixing the insert to the insert mounting seat. Yes.
  • the rake face on the side surface of the insert has a flat surface area, and this flat surface area is in contact with a pocket as an insert mounting seat.
  • An insert for a slot mill includes a first surface, a second surface positioned on the opposite side of the first surface, a third surface positioned between the first surface and the second surface, It has a through hole that opens in the first surface and the second surface.
  • the third surface is located on at least a part of a plurality of rake face areas, a plurality of flank areas located between the rake face areas, and a ridge line where the rake face area and the flank face area intersect.
  • a cutting blade is located.
  • Each of the plurality of flank areas has a recess.
  • FIG. 8 is an enlarged view of a region C1 shown in FIG. It is a perspective view of the holder in the rotary tool shown in FIG.
  • FIG. 10 is an enlarged view of a region C2 shown in FIG.
  • the slot mill insert (hereinafter also simply referred to as an insert) of the embodiment will be described in detail with reference to the drawings.
  • each drawing referred to below shows only the main members necessary for explaining the embodiment in a simplified manner for convenience of explanation.
  • the insert may comprise any component not shown in the referenced figures.
  • the dimension of the member in each figure does not faithfully represent the dimension, dimension ratio, etc. of an actual component member.
  • the insert 1 of the embodiment is suitably used as the insert 1 in a rotary tool such as a slot mill, for example.
  • the insert 1 in the present disclosure includes a first surface 3, a second surface 5, a third surface 7, and a through hole 9, and may be, for example, a flat plate as a whole as shown in FIG.
  • the first surface 3 is not limited to a specific shape, but in the example shown in FIG. 2, a part of a corner and a side of a polygon having a plurality of corners and sides are cut out. ing. Specifically, as in the example illustrated in FIG. 2, the first surface 3 has one of each of the three corners 2 a and each of the sides constituting the three corners 2 a in the triangle 2 indicated by a two-dot chain line. The shape by which the part was notched may be sufficient. At this time, the three sides may be positioned so as to be 120 ° rotationally symmetric about the central axis O1 in the front view of the first surface 3.
  • the first surface 3 may be cut out in an arc shape so as to be concave with respect to each of the three corners 2a.
  • the first surface 3 does not need to have a configuration cut out in an arc shape, for example, a configuration cut out in a concave curve shape that is not limited to an arc shape, or a corner 2a by one or a plurality of straight lines. It may be a configuration in which is cut out.
  • the first surface 3 is not limited to the shape shown in FIG.
  • the first surface 3 is an n-gon (n is an integer greater than 3), and each of n corners and a part of each of the sides constituting the n corners are cut away. It may be.
  • the n sides may be positioned so as to be 360 ° / n rotationally symmetric about the central axis O1 in the front view of the first surface 3.
  • the second surface 5 is a surface located on the opposite side of the first surface 3 and may be substantially the same shape as the first surface 3. Although not particularly illustrated, the second surface 5 is cut out of each of the three corners 2a and a part of each of the sides constituting the three corners 2a in the triangle 2 in the same manner as the first surface 3. It may be a shape. The second surface 5 does not have to be exactly the same shape as the first surface 3, and may be slightly different.
  • the third surface 7 is located between the first surface 3 and the second surface 5. As in the example illustrated in FIG. 1, the third surface 7 may be connected to the first surface 3 and the second surface 5. In the case where the first surface 3 and the second surface 5 have substantially the same shape as in the example shown in FIG. 1, the third surface 7 is substantially orthogonal to the first surface 3 and the second surface 5, respectively. Also good.
  • the third surface 7 has a plurality of flat surface regions and a plurality of curved surface regions. It may be a configuration.
  • the flat surface region in the example illustrated in FIG. 1 is a region connected to the sides of the first surface 3 and the second surface 5 of the third surface 7.
  • the curved surface region in the example shown in FIG. 1 is a region connected to a cut-out portion of each of the first surface 3 and the second surface 5.
  • the size of the insert 1, that is, the size of the first surface 3, the second surface 5, and the third surface 7 is not limited to a specific value.
  • the maximum width of the first surface 3 and the second surface 5 may be set to 5 to 20 mm.
  • the width of the third surface 7, that is, the thickness of the insert 1 may be set to 1 to 4 mm.
  • the insert 1 of the embodiment has a through hole 9 that opens in the first surface 3 and the second surface 5.
  • a portion opened in the first surface 3 is referred to as a first opening region 9a
  • a portion opened in the second surface 5 is referred to as a second opening region 9b.
  • the through hole 9 may be used to fix the insert 1 to the holder.
  • the first screw provided in the holder by inserting the first screw from the first opening region 9a of the through hole 9 and projecting the first screw from the second opening region 9b of the through hole 9 is provided.
  • the insert 1 may be fixed to the holder by engaging the hole.
  • the insert 1 can be removed from the holder by removing the first screw.
  • the first opening region 9 a is located at the center of the first surface 3, and the second opening region 9 b is located at the center of the second surface 5. Therefore, the axis of the through hole 9 coincides with the central axis O1 of the insert 1.
  • the third surface 7 in the example shown in FIG. 1 includes a plurality of rake face regions 11, a plurality of flank face regions 13, and a plurality of cutting edges 15.
  • the rake face region 11 indicates a region through which chips generated by the cutting blade 15 flow during cutting. At this time, chips may or may not contact the rake face region 11.
  • the flank region 13 is a surface that is less in contact with the finished surface during cutting in order to reduce the possibility of causing deterioration of the finished surface due to contact and an increase in frictional heat. Note that in the case of a metal member or the like in which the work material is elastically deformed, the flank region 13 may come into contact with the finished surface during cutting.
  • the plurality of rake face regions 11 may be located toward the front in the rotational direction from the corresponding cutting edges 15.
  • the plurality of rake face regions 11 may correspond to regions connected to portions of the first surface 3 and the second surface 5 where the corners 2a are notched.
  • the third surface 7 in the example shown in FIG. 2 includes three rake surface regions 11.
  • the first surface 3 and the second surface 5 in a front view of the first surface have a configuration in which a portion connected to the rake face region 11 is cut out in a concave curve shape, specifically, Since the structure is cut out in an arc shape, each of the plurality of rake face regions 11 has a curved concave surface.
  • region 11 is each one or some flat surface.
  • the shape which the surface combined may be sufficient.
  • each of the plurality of rake face regions 11 has a curved concave curved surface shape, clogging of chips generated in the cutting process is suppressed, and chip dischargeability is high.
  • the chip discharging property is even higher.
  • the plurality of flank areas 13 on the third surface 7 are located from the corresponding cutting edges 15 toward the rear in the rotational direction. Each flank area 13 is located between the plurality of rake face areas 11.
  • the plurality of flank areas 13 in the embodiment correspond to areas connected to the sides of each of the first surface 3 and the second surface 5.
  • the third surface 7 in the example shown in FIG. 2 includes three flank region 13. Since the plurality of flank areas 13 in the example shown in FIG. 1 are connected to the sides of the first surface 3 and the second surface 5, respectively, the plurality of flank areas 13 have a flat surface shape. .
  • the adjacent rake face area 11 and flank face area 13 intersect to form a ridgeline.
  • the cutting edge 15 is located on at least a part of the ridgeline.
  • the third surface 7 has three rake face regions 11 and three flank face regions 13, so that there are six ridge lines.
  • the cutting blade 15 may be located in at least one part in each of these six ridgelines. Therefore, the insert 1 may have six cutting edges 15.
  • the six cutting edges 15 are respectively positioned over the entire ridgeline where the adjacent rake face area 11 and the flank face area 13 intersect, the six cutting edges 15 are located on the first face 3 side of the third face 7. In other words, it may be positioned from the end portion to the end portion on the second surface 5 side.
  • the six cutting edges 15 do not have to be used for cutting at the same time, and any one cutting edge 15 may be used for cutting. And when the cutting edge 15 deteriorates by cutting for a long time, after removing the insert 1 from a holder once, the direction of the insert 1 may be changed and it may attach to a holder again. Thereby, the other unused cutting blade 15 can be used for the cutting of a workpiece.
  • the portion where the cutting edge 15 is formed on the ridgeline where the rake face area 11 and the flank face area 13 intersect may be subjected to a so-called honing process. That is, the ridge line where the rake face region 11 and the flank face region 13 intersect may not be a strict line shape due to the intersection of two surfaces. Since the strength of the cutting edge 15 may decrease if the ridgeline is linear, for example, the curved edge is formed at the portion where the cutting edge 15 is located on the ridgeline where the rake face area 11 and the flank face area 13 intersect. Honing may be performed.
  • the plurality of flank areas 13 in the embodiment each have a recess 17.
  • the flank region 13 has a convex portion, and the holder has a concave portion engaged with the convex portion. Good.
  • the flank area 13 has the concave portion 17 and the holder has a convex portion as in the embodiment. It is valid.
  • the rake face region 11 may further include a recess and the holder may have a protrusion engaged with the recess. Good.
  • a configuration in which the flank face region 13 has the concave portion 17 and the holder has a convex portion as in the embodiment is effective.
  • the insert 1 in the example shown in FIG. 1 has a plurality of rake face regions 11.
  • the rake face regions 11 adjacent to each other among the rake face regions 11 are separated from each other as the flank face region 13 located between the rake face regions 11 is separated.
  • You may be located as follows. That is, the rake face regions 11 adjacent to each other may be closest to each other at a place connected to the flank face region 13 located between the rake face regions 11.
  • the rake face regions 11 adjacent to each other are located away from the flank face region 13 located between these rake face regions 11 as in the example shown in FIG. May be the closest.
  • the locations closest to each other in the adjacent rake face regions 11 are located between the through hole 9 and the recess 17.
  • a straight line X1 connecting the two points that are closest to each other in the adjacent rake face region 11 passes between the through hole 9 and the recess 17. It does not intersect with the through hole 9 and the recess 17.
  • the size of the recess 17 is not limited to a specific value.
  • the first width W1 of the recess 17 can be set to 0.1L to 0.8L, where L is the width L and the width of the recess 17 in the direction perpendicular to the central axis O1 is the first width W1.
  • the first width W1 of the concave portion 17 is 0.1 L or more, the width of the convex portion engaged with the concave portion 17 is easily increased, so that the possibility that the convex portion is broken is reduced, and the durability of the holder is reduced. high.
  • the first width W1 of the recess 17 is 0.8L or less, the thickness of the insert 1 between the recess 17 in the flank area 13 and the rake face area 11 adjacent to the flank area 13 is as follows. Therefore, the insert 1 has high durability.
  • each of the recess 17 in the flank area 13 and the two rake face areas 11 adjacent to the flank area 13 is provided. From the viewpoint of securing the thickness of the insert 1 between them, it is effective that the recess 17 is recessed toward the through hole 9.
  • the depth of the recess 17 is not limited to a specific value, for example, the depth D of the recess 17 can be set to 0.1 L to 0.5 L.
  • the depth D of the concave portion 17 is 0.1 L or more, the height of the convex portion engaged with the concave portion 17 can be easily increased. Therefore, the insert 1 is rotated around the first screw by the convex portion. High suppression effect.
  • the depth D of the recessed part 17 is 0.5L or less, since the thickness of the insert 1 between the recessed part 17 and the through-hole 9 is easy to ensure, durability of the insert 1 is high.
  • the shape of the recess 17 is not limited to a specific configuration.
  • the concave portion 17 may have an arc shape in a cross section orthogonal to the central axis O ⁇ b> 1 of the through hole 9.
  • the rake face region 11 is also arc-shaped.
  • the radius of curvature of the rake face region 11 is larger than the radius of curvature of the recess 17.
  • the curvature radius of the rake face region 11 is relatively large, clogging of chips is difficult to occur, and chip dischargeability is high.
  • the curvature radius of the recessed part 17 is relatively small, the effect which suppresses rotation of the insert 1 around a 1st screw
  • the recess 17 extends from the first surface 3 to the second surface 5.
  • the concave portion 17 has such a shape, the concave portion 17 of the insert 1 and the convex portion of the holder are easily engaged, and the attachment of the insert 1 to the holder is facilitated.
  • the first width W1 of the concave portion 17 is constant from the first surface 3 side to the second surface 5 side. It may also be changed. For example, as in the example shown in FIG. 3, the first width W1 of the recess 17 at the end on the first surface 3 side is larger than the first width W1 of the recess 17 at the end on the second surface 5 side. Also good.
  • the recess 17 in the example shown in FIG. 3 includes a first region 17a, a second region 17b, a third region 17c, and a fourth region 17d.
  • the first region 17a to the fourth region 17d are sequentially located from the first surface 3 side toward the second surface 5 side when the flank region 13 is viewed from the front.
  • the first region 17a in the example shown in FIG. 3 is located at the end of the recess 17 on the first surface 3 side, and the first width W1 in the first region 17a is a flank.
  • the area 13 When the area 13 is viewed from the front, the area 13 becomes larger toward the second surface 5.
  • the second region 17b in the example shown in FIG. 3 extends from the first region 17a toward the second surface 5, and the first width W1 in the second region 17b is a front view of the flank region 13. In some cases, the distance decreases toward the second surface 5.
  • the screw head of the second screw is used when the second screw is used as a portion engaged with the concave portion 17. Is easily secured in the recess 17. Since the first width W1 in the first region 17a and the second region 17b changes as described above, the first width W1 of the recess 17 in the example shown in FIG. 3 is the first region 17a and the second region 17b. This is the maximum value at the boundary of the region 17b.
  • the third region 17c in the example shown in FIG. 3 extends from the second region 17b toward the second surface 5, and the first width W1 in the third region 17c is the front surface of the flank region 13. It is constant when viewed.
  • the fourth region 17d in the example shown in FIG. 3 is located from the third region 17c to the second surface 5, and the first width W1 in the fourth region 17d is when the flank region 13 is viewed from the front. It becomes smaller as it goes to the second surface 5.
  • the concave portion 17 has the third region 17c
  • the concave portion 17 and the convex portion or the second screw are likely to come into stable contact. Therefore, the insert 1 is easily fixed stably to the holder.
  • the ridge line where the flat surface 13a and the third region 17c intersect in the flank region 13 is parallel to the central axis O1
  • a force that rotates around the first screw is applied to the insert 1 during cutting. Even in this case, the insert 1 is easily locked in the recess 17. Therefore, the insert 1 is easily fixed stably by the holder.
  • the cutting blade 15 may have a linear shape as a whole, may have a curved shape as a whole, or a portion thereof may have a linear shape and another portion may have a curved shape.
  • the cutting blade 15 may have the 1st corner blade 15a and the 1st linear blade 15b like an example shown in FIG.
  • the first corner blade 15a is located at the end of the cutting blade 15 on the first surface 3 side, and has a curved shape protruding outward. Moreover, the 1st linear blade 15b is extended toward the 2nd surface 5 side from the 1st corner blade 15a, and is a linear shape.
  • the durability of the cutting edge 15 is high. Further, when the cutting edge 15 has the first straight edge 15b, the smoothness of the finished surface of the work material is improved.
  • the first linear blade 15b may be parallel to the central axis O1, and, as an example shown in FIG. You may approach the central axis O1 as it goes away from the 1 corner blade 15a.
  • the flank region The width of the first region 17a in the direction along the central axis O1 when viewing 13 in front is defined as a second width W2.
  • the second width W2 may be the same as the third width W3 as in the example shown in FIG.
  • the first width W1 of the recess 17 in the example illustrated in FIG. 3 is the maximum value at the boundary between the first region 17a and the second region 17b. Therefore, the flank region 13 on the first surface 3 side of the boundary between the first region 17a and the second region 17b where the first width W1 of the concave portion 17 has the maximum value, that is, the portion where the first region 17a is located. It is effective from the viewpoint of durability of the insert 1 to reduce the cutting load.
  • the second width W2 is the same as the third width W3, the first corner blade 15a is positioned according to the width of the first region 17a in the direction along the central axis O1, and therefore the durability of the insert 1 Is expensive.
  • the cutting blade 15 may further include a second corner blade 15c in addition to the first corner blade 15a and the first straight blade 15b, as in the example shown in FIG.
  • the 2nd corner blade 15c in an example shown in FIG. 3 is located in the edge part by the side of the 2nd surface 5 in the cutting blade 15, and is a linear shape.
  • the second corner blade 15c may be inclined with respect to the first straight blade 15b when viewed from the rake face region 11 side.
  • a second cutting edge 15c is located at the end of the cutting edge 15 on the second surface 5 side and is inclined with respect to the first straight edge 15b when viewed from the rake face region 11 side. Has a high durability of the cutting edge 15.
  • the second corner blade 15c may have a curved shape protruding outward as in the case of the first corner blade 15a.
  • the durability of the insert 1 is simple while the second corner blade 15c can be manufactured at low cost. Is expensive.
  • the first width W1 of the recess 17 at the end on the first surface 3 side is larger than the first width W1 of the recess 17 at the end on the second surface 5 side.
  • the thickness of the insert 1 between the second corner blade 15 c and the recess 17 is thicker than the thickness between the first corner blade 15 a and the recess 17.
  • the flank area 13 may have a flat surface shape.
  • the flank region 13 when the concave portion 17 extends from the first surface 3 to the second surface 5, the flank region 13 is located between the two adjacent rake face regions 11 and the concave portion 17. You may consider that it has the two flat surfaces 13a each located.
  • flank area 13 When the flank area 13 has the flat surface 13a, the flank area 13 is less likely to come into contact with the finished surface of the work material.
  • the flank area 13 may be configured such that the cutting edge 15 is located on each of the ridge lines with the two adjacent rake face areas 11.
  • the flank region 13 is viewed from the front, when the two flat surfaces 13a are line symmetric with respect to the central axis of the recess 17, any of these two cutting edges 15 may be used. There is little possibility that the flank area 13 contacts the finished surface of the work material.
  • Examples of the material of the insert 1 include cemented carbide and cermet.
  • Examples of the composition of the cemented carbide include WC—Co, WC—TiC—Co, and WC—TiC—TaC—Co.
  • WC tungsten carbide
  • TiC titanium carbide
  • TaC tantalum carbide
  • Co cobalt
  • cermet is a sintered composite material in which a metal is combined with a ceramic component.
  • the cermet includes a titanium compound mainly composed of TiC or TiN (titanium nitride).
  • the surface of the insert 1 may be coated with a film using a chemical vapor deposition (CVD) method or a physical vapor deposition (PVD) method.
  • CVD chemical vapor deposition
  • PVD physical vapor deposition
  • the composition of the coating include TiC, TiN, TiCN (titanium carbonitride), and Al 2 O 3 (alumina).
  • FIGS. 7 to 8 and FIGS. 11 to 13 show a state in which the insert 1 is attached to the pocket 105 of the holder 103 by the first screw 107.
  • 9 to 10 show the holder 103 from which the insert 1 is removed (not attached). Note that a two-dot chain line in FIG. 7 and the like indicates the rotation axis O2 of the rotary tool 101.
  • the rotary tool 101 of this embodiment includes an insert 1, a holder 103, and a first screw 107.
  • the rotary tool 101 in this embodiment is a tool used for milling for forming a thin groove.
  • the holder 103 in the present embodiment has a thin disk shape and has a rotation axis O2 extending in a direction perpendicular to the plane portion.
  • the holder 103 has a first end surface 109, a second end surface 111, an outer peripheral surface 113, and a pocket 105.
  • the second end surface 111 is located on the opposite side of the first end surface 109, and the first end surface 109 and the second end surface 111 are each generally circular.
  • the outer peripheral surface 113 is located between the first end surface 109 and the second end surface 111 and intersects with each of the first end surface 109 and the second end surface 111.
  • a pocket 105 to which the insert 1 is attached is located on the outer peripheral portion of the disc-shaped holder 103. That is, the rotary tool 101 of the present embodiment is configured to include a holder 103 having a pocket 105 located in the outer peripheral portion and an insert 1 located in the pocket 105.
  • the holder 103 in this embodiment has a plurality of pockets 105.
  • An insert 1 is attached to each pocket 105. That is, the rotary tool 101 of this embodiment has a plurality of inserts 1.
  • the plurality of pockets 105 includes a first pocket 105a and a second pocket 105b.
  • the first pocket 105 a is located on the outer peripheral side of the first end surface 109 in the holder 103, and is open to the first end surface 109 and the outer peripheral surface 113.
  • the first pocket 105 a includes a first screw hole 115 a that opens toward the first end surface 109.
  • the second pocket 105 b is located on the outer peripheral side of the second end surface 111 of the holder 103 and is open to the second end surface 111 and the outer peripheral surface 113. Further, the second pocket 105 b includes a first screw hole 115 b that opens toward the second end surface 111.
  • the holder 103 in the present embodiment has a plurality of first pockets 105a and a plurality of second pockets 105b, but has a configuration having only one first pocket 105a and only one second pocket 105b. May be.
  • the insert 1 is located in the first pocket 105a and the second pocket 105b so that at least a part of the cutting edge protrudes outward from the outer peripheral surface 113 of the holder 103.
  • the insert 1 is attached to the first pocket 105a and the second pocket 105b so that the second surfaces abut each other.
  • First screw holes 115a and 115b corresponding to the through holes of the insert 1 are formed in the first pocket 105a and the second pocket 105b, respectively.
  • the insert 1 is fixed to the first pocket 105a and the second pocket 105b by the first screw 107 being inserted into the through hole of the insert 1 and being fixed to the first screw hole 115.
  • the pocket 105 in this embodiment has a convex part 117 that is engaged with the concave part of the insert 1. Even when a force that rotates around the first screw 107 is applied to the insert 1 during cutting by engaging the convex portion 117 of the pocket 105 with the concave portion of the insert 1, The insert 1 is locked. Therefore, the insert 1 can be stably fixed to the holder 103.
  • steel, cast iron, or the like can be used.
  • steel having high toughness among these materials it is preferable to use steel having high toughness among these materials.
  • FIGS. 14 to 15 and FIGS. 18 to 20 show a state in which the insert 1 is attached to the pocket 205 of the holder 203 with the first screw 207.
  • 16 to 17 show the holder 203 from which the insert 1 is removed (not attached).
  • a two-dot chain line in FIG. 14 and the like indicates the rotation axis O2 of the rotary tool 201.
  • description is abbreviate
  • the rotary tool 201 of this embodiment includes an insert 1, a holder 203, a first screw 207, and a second screw 217.
  • the rotary tool 201 in the present embodiment is a tool used for milling for forming a narrow groove, like the rotary tool 101 according to the first embodiment.
  • the holder 203 in the present embodiment has a thin disk shape like the holder 103 in the rotary tool 101 of the first embodiment, and has a rotation axis O2 extending in a direction orthogonal to the plane portion. .
  • the holder 203 has a first end surface 209, a second end surface 211, an outer peripheral surface 213, and a pocket 205.
  • the pocket 205 in the present embodiment is constituted by a first pocket 205a and a second pocket 205b, similar to the holder 103 in the rotary tool 101 of the first embodiment.
  • the first pocket 205a in the present embodiment includes a second screw hole 219a that opens toward the first end face 209 in addition to the first screw hole 215a.
  • the second pocket 205b also includes a second screw hole 219b that opens toward the second end surface 211 in addition to the first screw hole 215b.
  • a first screw hole 215 corresponding to the through hole of the insert 1 is formed in each of the first pocket 205a and the second pocket 205b.
  • the insert 1 is fixed to the first pocket 205a and the second pocket 205b by the first screw 207 being inserted into the through hole of the insert 1 and being fixed to the first screw hole 215.
  • second screw holes 219 are formed in the first pocket 205a and the second pocket 205b, respectively.
  • the second screw hole 219 is positioned so as to correspond to the concave portion of the insert 1.
  • a second screw 217 is fixed to the second screw hole 219.
  • the second screw 217 is fixed to the second screw hole 219 so that the second screw 217 contacts the recess of the insert 1. Even when a force that rotates around the first screw 207 is applied to the insert 1 at the time of cutting by the contact of the second screw 217 with the concave portion of the insert 1, the insert 1 is moved by the second screw 217. Will be locked. Therefore, it becomes possible to stably fix the insert 1 to the holder 203.
  • the second screw 217 in the present embodiment performs the same function as the convex portion 117 in the first embodiment.
  • the attachment work to the pocket 205 of the insert 1 becomes easy compared with the rotary tool 101 of 1st Embodiment.
  • the pocket 205 includes a first restraining portion 221 that abuts one of the plurality of rake face regions and a second restraining portion 223 that abuts the other one of the plurality of rake face regions.
  • the pocket 205 includes the first restraining portion 221 and the second restraining portion 223, when the first restraining portion 221 and the second restraining portion 223 are separated from the cutting blade, respectively, the first restraining portion 221 and It is easy to avoid damage to the cutting blade due to the second restraining portion 223 coming into contact with the cutting blade.
  • the insert 1 is moved by the holder 203. It can be stably fixed. This is because a force is applied from the second screw 217 to the recess in the opposite direction to the rotating force around the first screw 207 applied to the cutting edge during the cutting process.
  • FIGS. 21 to 23 show a method for manufacturing a cut product.
  • 21 to 23 show the rotation axis O2 of the rotary tool 101.
  • the cut workpiece is produced by cutting the work material 301.
  • the cutting method in the embodiment includes the following steps. That is, (1) rotating the rotary tool 101 typified by the above embodiment; (2) a step of bringing the insert in the rotating rotary tool 101 into contact with the work material 301; (3) a step of separating the rotary tool 101 from the work material 301; It has.
  • the rotary tool 101 is relatively moved closer to the work material 301 while rotating around the rotation axis O2.
  • the rotary tool 101 is brought into contact with the work material 301 to cut the work material 301.
  • the cutting edge of the insert 1 is brought into contact with the work material 301.
  • the rotary tool 101 is relatively moved away from the work material 301.
  • FIG. 21 to 23 show an example in which the work material 301 is fixed and the rotary tool 101 is rotated around the rotation axis O2. Specifically, in FIG. 21, the work material 301 is fixed and the rotary tool 101 is approached. FIG. 23 shows an example in which the rotary tool 101 is moved away from the work material 301.
  • the work material 301 may be brought close to the rotary tool 101.
  • the work material 301 may be moved away from the rotary tool 101.
  • the state where the rotary tool 101 is rotated may be maintained, and the process of bringing the cutting edge of the insert into contact with a different part of the work material 301 may be repeated.
  • the insert When the cutting blade used is worn, the insert may be rotated 120 ° around the central axis of the through hole and an unused cutting blade may be used.
  • representative examples of the material of the work material 301 include carbon steel, alloy steel, stainless steel, cast iron, and non-ferrous metal.

Abstract

Un aspect de l'invention concerne une fraise à rainure qui comporte une première surface, une deuxième surface positionnée sur le côté opposé à la première surface, une troisième surface positionnée entre la première surface et la deuxième surface et un trou traversant qui s'ouvre dans la première surface et la deuxième surface. La troisième surface comprend une pluralité de régions de surface de coupe, une pluralité de régions de surface de flanc respectivement positionnées entre la pluralité de régions de surface de coupe, et une lame de coupe positionnée sur au moins une partie d'une ligne de crête où les régions de surface de coupe et les régions de surface de flanc se croisent. Chacune de la pluralité de régions de surface de flanc présente une partie évidée.
PCT/JP2018/016135 2017-04-27 2018-04-19 Insert pour fraise à rainure, et fraise à rainure WO2018198929A1 (fr)

Priority Applications (2)

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JP2019514440A JP6941163B2 (ja) 2017-04-27 2018-04-19 スロットミル用インサート及びスロットミル
CN201880026954.6A CN110582365A (zh) 2017-04-27 2018-04-19 槽铣刀用镶刀以及槽铣刀

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JP2017088216 2017-04-27
JP2017-088216 2017-04-27

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WO2018198929A1 true WO2018198929A1 (fr) 2018-11-01

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JP (1) JP6941163B2 (fr)
CN (1) CN110582365A (fr)
WO (1) WO2018198929A1 (fr)

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JPS59134614A (ja) * 1982-12-27 1984-08-02 サントレ−ド・リミテイド 溝フライス工具用切削チップ
JPH0516011A (ja) * 1991-02-05 1993-01-26 Mitsubishi Materials Corp スローアウエイチツプ
JPH10502582A (ja) * 1995-03-24 1998-03-10 イスカー・リミテツド フライス用の切削インサート
WO2013018724A1 (fr) * 2011-07-29 2013-02-07 株式会社タンガロイ Plaquette de coupe et outil de coupe rotatif

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JPS60157120U (ja) * 1984-03-28 1985-10-19 三菱マテリアル株式会社 多角形状のスロ−アウエイチツプ
JPH0628806B2 (ja) * 1985-07-16 1994-04-20 本田技研工業株式会社 複合工具の取付装置
JPH0518008Y2 (fr) * 1987-06-10 1993-05-13
JPH0624818U (ja) * 1992-08-28 1994-04-05 三菱マテリアル株式会社 スローアウェイ式エンドミル
JPH06262422A (ja) * 1993-03-11 1994-09-20 Dijet Ind Co Ltd 転削工具のスローアウエイチップ
IL129297A (en) * 1998-07-13 2002-12-01 Iscar Ltd Tangential cutting insert
EP2035175B1 (fr) * 2006-06-26 2016-10-05 Seco Tools AB Insert de coupe remplaçable et outil de fraisage
DE112008000835B4 (de) * 2007-03-30 2011-02-24 Kyocera Corp. Plattenelement, rotierendes Werkzeug, das das Plattenelement verwendet, und Schneidverfahren, das das rotierende Werkzeug verwendet
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JPS5020294B1 (fr) * 1969-02-21 1975-07-14
JPS59134614A (ja) * 1982-12-27 1984-08-02 サントレ−ド・リミテイド 溝フライス工具用切削チップ
JPH0516011A (ja) * 1991-02-05 1993-01-26 Mitsubishi Materials Corp スローアウエイチツプ
JPH10502582A (ja) * 1995-03-24 1998-03-10 イスカー・リミテツド フライス用の切削インサート
WO2013018724A1 (fr) * 2011-07-29 2013-02-07 株式会社タンガロイ Plaquette de coupe et outil de coupe rotatif

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JPWO2018198929A1 (ja) 2020-02-27
JP6941163B2 (ja) 2021-09-29

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