WO2010078672A1 - 切削刀具的刀片 - Google Patents

切削刀具的刀片 Download PDF

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Publication number
WO2010078672A1
WO2010078672A1 PCT/CN2008/002103 CN2008002103W WO2010078672A1 WO 2010078672 A1 WO2010078672 A1 WO 2010078672A1 CN 2008002103 W CN2008002103 W CN 2008002103W WO 2010078672 A1 WO2010078672 A1 WO 2010078672A1
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WO
WIPO (PCT)
Prior art keywords
blade
cutting
face
cutting tool
tool according
Prior art date
Application number
PCT/CN2008/002103
Other languages
English (en)
French (fr)
Inventor
陈立诚
Original Assignee
益壮企业有限公司
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 益壮企业有限公司 filed Critical 益壮企业有限公司
Priority to PCT/CN2008/002103 priority Critical patent/WO2010078672A1/zh
Publication of WO2010078672A1 publication Critical patent/WO2010078672A1/zh

Links

Classifications

    • 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
    • B23B27/22—Cutting tools with chip-breaking equipment
    • 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
    • B23B27/04—Cutting-off tools
    • B23B27/045—Cutting-off tools with chip-breaking arrangements
    • 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
    • B23C5/165—Milling-cutters characterised by physical features other than shape with chipbreaking or chipdividing equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F21/00—Tools specially adapted for use in machines for manufacturing gear teeth
    • B23F21/12—Milling tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2205/00—Fixation of cutting inserts in holders
    • B23B2205/02—Fixation using an elastically deformable clamping member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2210/00—Details of milling cutters
    • B23C2210/16—Fixation of inserts or cutting bits in the tool
    • B23C2210/161—Elastically deformable clamping members

Definitions

  • the utility model relates to a cutting tool, in particular to a blade which can make the chips formed during cutting form a divergence during the cutting process and has a small volume, which achieves a cutting tool with smooth chip discharge.
  • C N C lathes, etc. are equipped with tools for cutting workpieces.
  • the aforementioned cutters are available in various types depending on the purpose of the machining, and are provided with a blade having a blade face formed on the outward end and a blade edge formed at an acute angle along the outer edge of the blade face.
  • the cutting edge of the tool is relative to the workpiece, and the blade edge is in contact with the workpiece to be processed; and then the blade is cut into the workpiece by the rotation of the tool or the rotation of the workpiece, and the material to be processed is milled to form the chip. Reach the preset appearance.
  • the blades are designed to be continuous straight or curved along the outer edge of the blade. Therefore, the chips formed during cutting tend to be large and wound along the blade surface. When the cutting is deeper, the chips will not be easily discharged and will be easily caught in the slots formed by the cutting, resulting in cutting work. If it is not smooth, it is more likely to cause damage to the tool; in addition, the impedance force within the material will be more concentrated, resulting in more energy consumption during cutting.
  • the utility model provides a blade for a cutting tool, which can make the chips formed during cutting form a divergence during the cutting process and split the chip with a smaller volume, thereby achieving smooth discharge on the chip.
  • the structure is a block, which can be fixed on the cutter, and has a blade surface formed on one end and a blade edge formed at an acute angle along the outer edge of the blade surface, wherein the blade is concavely formed with at least one chip breaking recess. .
  • the blade will be stressed when cutting The discontinuous distribution, therefore, the chips of the workpiece will gradually form a divergence with the chip breaking notch as a boundary, thereby splitting the chips with a smaller volume, thereby achieving smoothness on the chip discharging.
  • the blade (10) of the cutting tool of the present invention is a block body having a joint portion (11) at one end and a cutting portion (12) at the other end, the cutting portion (12)
  • the top has a blade face (13), and the end face (120) is inclined at an acute angle to the blade face (13), thereby forming a blade edge (14) along the blade outer edge (13), and is characterized in that The blade (14) is concavely formed with a chip breaking recess (15).
  • the chip breaking recess (15) may be formed on one side of the blade (14) by means of a concave longitudinal groove formed on the blade face (13) or on the end face (120) of the cutting portion (12) ( 130) (121) is formed, the length of the longitudinal groove (130) (121) is not limited, and may extend longitudinally over the entire blade surface (13) or the cutting portion (12) end surface (120), or only Formed on the blade face ( 13) adjacent to the blade ( 14 ) or on the end face ( 120 ) of the cutting section ( 12 )
  • the blade (10) of the cutting tool of the present invention can form a plurality of chip breaking recesses (15) on the blade edge (14); as shown in Fig. 6, in another preferred embodiment, the blade edge (14) ) On the two sides, two chip breaking recesses ( 15) are formed on both sides of the blade ( 14 );
  • the embodiment of the present invention is applied to a disc milling cutter (30), which is formed with a plurality of sipes (31) around and spaced apart; and a plurality of blades (10) of the present invention, Is fixed in the sipe (31) by its joint portion (11), the flank (13) of which faces the counterclockwise direction of the disc milling cutter (30);
  • the chip breaking recess (15) of the insert (10) on the disc milling cutter (30) can be set to the left and right misalignment, or as shown in Fig. 10, the chip breaking recess (15) is a single The plural interleaving setting; thereby, the disc milling cutter (30) can avoid the residual of the workpiece (20) due to the chip breaking recess (15) when the workpiece (20) is cut and milled. Material protrusions.
  • the blade (10) of the cutting tool of the present invention has a blade edge (14) not limited to any shape.
  • the blade (10, ) has a blade edge. (14) forming an arc curve between each chip breaking recess (15);
  • the blade (10A) has a concave shape at the blade edge (14A), and the two sides are projecting, and the chip breaking is formed at the blade edge (14A).
  • Port (15A) is available for left and right misalignment
  • FIG. 1 is a side elevational view of a preferred embodiment of the present invention.
  • Figure 2 is an end elevational view of a preferred embodiment of the present invention.
  • Figure 3 is another end elevational view of a preferred embodiment of the present invention.
  • Figure 4 is a side elevational view of another preferred embodiment of the present invention.
  • Figure 5 is a top plan view of a preferred embodiment of the present invention.
  • Figure 6 is a plan view of still another preferred embodiment of the present invention.
  • Fig. 7 is a plan view showing a cutting state of the present invention.
  • Fig. 8 is a side view showing the state in which the present invention is mounted on a cutter.
  • Figure 9 is a top plan view showing the arrangement of the utility model when installed.
  • Fig. 10 is a top plan view showing another arrangement of the present invention.
  • Figure 11 is a top plan view showing the arrangement of the present invention in a further preferred embodiment.
  • Figure 12 is a top plan view showing the arrangement of the present invention in a further preferred embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling Processes (AREA)

Description

切削刀具的刀片
【技术领域
本实用新型涉及切削刀具， 特别地 是指一种可令切削时所 形成的切屑在切削的过程中形成分歧而具有较小体积的切屑 ， 此达到排屑顺畅的切削刀具的刀片。
【背景技术 】
目前广泛运用 的机械加工机具， 例如 钻床、 铣床、 车床 、
C N C 车床等等， 其内部都装设有刀具以作为切削工件使用 。
前述的刀具依据不同的加工 目 的而有各种不同的型式， 其上 设置有刀片， 该刀片朝外的一端上形成有刀面以及沿刀面外缘成 型而呈锐角设计的刀锋。 切削时， 是以刀具的刀面相对于工件 ， 且刀锋接触于该工件的待加工处； 再以刀具旋转或者工件旋转的 方式， 使刀锋切入工件内 ， 并铣削 出待加工处的材料形成切屑 以达到所预设的外型。
传统的刀片 , 其刀锋都是沿着刀面外缘呈连续性直线或曲线 设计。 因而， 其切削时所形成的切屑往往呈大片状而沿刀面卷绕， 当切削越深时， 切屑将不易排出而容易卡死在切削所形成的切槽 之中， 导致切削作业上的不顺遂， 更可能造成刀具的损坏； 此外， 材料内的阻抗力量将更为集中， 使得切削时增加更多的能源消耗。
上述都是 目 前业界中 ， 刀具使用上所面临的急待改善的问题。
【实用新型内容 1
本实用新型的 的在于提供切削刀具的刀片 其可令切削时 所形成的切屑在切削的过程中形成分歧而分裂出具较小体积的切 屑 ， 藉此达到排屑上的顺畅
为达到上述 目 的 ， 本实用新型的切削刀具的刀片 ？ 其结构是 呈块体 ， 其可固定在刀具上 ， 在一端上形成有刀面以及沿刀面外 缘形成呈锐角设计的刀锋， 其特征在于 该刀锋上内凹形成有至 少一个断屑凹 口 。
藉由该断屑凹 P 的设计 当刀片在进行切削时将产生应力的 不连续分布， 因而， 工件的切屑将以该断屑凹 口为界而逐渐形成 分歧， 从而分裂具较小体积的切屑 ， 藉此达到排屑上的顺畅。
【实施方式】
请参看图 1 至图 5所示， 本实用新型的切削刀具的刀片 （ 10) 是呈块体， 其一端为结合部 （ 11 ) ； 另一端为切削部 （ 12) ， 该 切削部 （ 12) 顶部具有刀面 （ 13) ， 其端面 （ 120) 则与刀面 （ 13) 间呈锐角方式而内斜， 从而沿刀面 （ 13 ) —侧外缘成型刀锋 （ 14 ) , 而其特征在于， 该刀锋 （ 14) 上内 凹形成有断屑 凹 口 （ 15) 。 而 所述的断屑 凹 口 （ 15) 可形成于刀锋 （ 14) 的一侧， 可藉由形成 于刀面 （ 13 ) 上或者切削部 （ 12 ) 端面 （ 120 ) 上的 内凹纵槽 （ 130 ) ( 121 ) 来加 以形成， 该纵槽 （ 130) ( 121 ) 的长度并无一定限 制， 其可纵向延伸于整个刀面 （ 13) 或切削部 （ 12) 端面 （ 120) ， 也可仅仅形成于邻近刀锋 （ 14) 的刀面 （ 13) 或切削部 （ 12) 端 面 ( 120) 上 '·
本实用新型的切削刀具的刀片 （ 10) ， 其刀锋 （ 14) 上可形 成复数的断屑凹 口 （ 15) ； 请参看图 6 所示， 在另一个较佳实施 例中 ， 其刀锋 （ 14) 上是分别在刀锋 （ 14) 两侧形成二个断屑凹 口 （ 15) ；
请参看图 7所示， 藉由该断屑凹 口 （ 15) 的设计， 当刀片 （ 10) 在进行切削时， 将产生应力的不连续分布， 如此则工件 （ 20 ) 的 切屑 （ 21 ) 将以该断屑凹 口 （ 15) 为界而逐渐形成分歧， 从而分 裂成具较小体积的切屑 ， 以便利排出切削所形成的切槽 （ 22 ) 。
请参看图 8 所示， 为本实用新型运用于盘铣刀 （ 30) 的实施 例， 其上环绕且间隔形成有多个刀槽 （ 31 ) ； 而多个本实用新型 的刀片 （ 10) ， 是分别 以其结合部 （ 11 ) 固定在刀槽 （ 31 ) 中 ， 其刀面 （ 13) 均朝 向该盘铣刀 （ 30) 的逆时针方向 ；
请参看图 9 所示， 该盘铣刀 （ 30) 上刀片 （ 10) 的断屑凹 口 ( 15) 是可为左右错位设置， 或者如图 10所示， 断屑凹 口 （ 15) 为单复数交错设置； 藉此， 该盘铣刀 （ 30) 对工件 （ 20) 进行切 铣时， 可避免工件 （ 20) 上具有因断屑凹 口 （ 15) 而形成的残存 材料突起。
另外， 本实用新型的切削刀具的刀片 （ 10) ， 其刀锋 （ 14) 是不限于任何形状， 请进一步参看图 11 所示， 在再一个较佳实施 例中 ， 该刀片 （ 10， ） 的刀锋 （ 14， ) 在各断屑凹 口 （ 15， ) 之 间， 分别形成为弧形曲线；
该刀片 （ 10' ) 装设在该盘铣刀 （ 30) 时， 其刀锋 （ 14， ) 上的断屑凹 口 （ 15' ) 是呈错位设置。
参看图 12所示， 是又一个较佳实施例， 该刀片 （ 10A) 的刀 锋 （ 14A) 处呈凹入状， 而二侧为呈突出 ， 且于刀锋 （ 14A) 处所 形成的各断屑凹口 （ 15A) 是可为左右错位设置
【 附图说明】
图 1 是本实用新型的较佳实施例侧面视图。
图 2是本实用新型的较佳实施例端面视图 。
图 3是本实用新型的较佳实施例的另一个端面视图。
图 4是本实用新型的另一较佳实施例侧面视图 。
图 5是本实用新型的较佳实施例俯视图 。
图 6是本实用新型的又一个较佳实施例俯视图 。
图 7是本实用新型的切削实施状态的俯视图。
图 8是本实用新型装设在于刀具的实施状态侧视图。
图 9是本实用新型装设时排列方式的俯视示意图。
图 10是本实用新型的另一个装设时排列方式的俯视示意图。 图 11是本实用新型在再一个较佳实施例中装设时排列方式的 俯视示意图。
图 12是本实用新型于又一个较佳实施例中装设时排列方式的 俯视示意图 。
【 附图标记说明 】
( 10) 刀片 ( 11) 结合部
( 12) 切削部 ( 120) 端面
( 21 ) 纵槽 ( 13) 刀面
( 130) 纵槽 ( 14) 刀锋 P T/CN2008/002103
( 15) 断屑凹口
( 20) 工件 ( 21 ) 切屑
( 22) 切槽 ( 30) 盘铣刀
( 31 ) 刀槽 ( 10， ) 刀片
( 14， ) 刀锋 ( 15， ) 断屑凹口
( 10A) 刀片 ( 14A) 刀锋
( 15A) 断屑凹口

Claims

权利 要 求
1 一种切削刀具的刀片， 其呈块体， 具有作为连接用的结 合部 一顺为切削部， 该切削部顶部具有刀面， 该切削部端面与 刀面间呈锐角方式而内斜， 从而沿刀面一侧外缘成型刀锋， 而其 特征在于 ， 该刀锋上内凹形成有至少一个断屑凹 口
2 根据权利要求 1 所述的切削刀具的刀片， 其断屑凹 口 由 形成在刀面上的内 凹纵槽加以形成。
3 根据权利要求 2 所述的切削刀具的刀片， 其中该纵槽是 纵向延伸于整个刀面。
4 - 根据权利要求 2 所述的切削刀具的刀片， 其中该纵槽是 纵向形成于邻近刀锋的刀面。
5 根据权利要求 1 所述的切削刀具的刀片， 其断屑凹 口 由 形成于切削部端面上的内凹纵槽加以形成。
6 - 根据权利要求 5 所述的切削刀具的刀片， 其中该纵槽是 纵向延伸于整个切削部端面上。
7 根据权利要求 5 所述的切削刀具的刀片， 其中该纵槽是 纵向形成于邻近刀锋的切削部端面上。
8 - 根据权利要求 1 所述的切削刀具的刀片， 其刀锋上是分 别在刀锋两侧形成二个断屑凹 口 。
PCT/CN2008/002103 2008-12-29 2008-12-29 切削刀具的刀片 WO2010078672A1 (zh)

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PCT/CN2008/002103 WO2010078672A1 (zh) 2008-12-29 2008-12-29 切削刀具的刀片

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012046226A1 (en) * 2010-10-05 2012-04-12 Iscar Ltd. Cutting body and cutting insert having a stopping recess for a rotary cutting tool

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4854789A (en) * 1987-10-27 1989-08-08 Nytd Industries Inc. Cutting tool assembly
US5957635A (en) * 1998-08-21 1999-09-28 Allied Machine & Engineering Corp. Drill tool assembly
CN2463091Y (zh) * 2001-04-28 2001-12-05 倪志福 多尖多刃群钻
CN101146637A (zh) * 2005-04-04 2008-03-19 旭金刚石工业株式会社 钻孔刀具
CN201267881Y (zh) * 2008-09-05 2009-07-08 益壮企业有限公司 切削刀具的刀片

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4854789A (en) * 1987-10-27 1989-08-08 Nytd Industries Inc. Cutting tool assembly
US5957635A (en) * 1998-08-21 1999-09-28 Allied Machine & Engineering Corp. Drill tool assembly
CN2463091Y (zh) * 2001-04-28 2001-12-05 倪志福 多尖多刃群钻
CN101146637A (zh) * 2005-04-04 2008-03-19 旭金刚石工业株式会社 钻孔刀具
CN201267881Y (zh) * 2008-09-05 2009-07-08 益壮企业有限公司 切削刀具的刀片

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012046226A1 (en) * 2010-10-05 2012-04-12 Iscar Ltd. Cutting body and cutting insert having a stopping recess for a rotary cutting tool
US8708610B2 (en) 2010-10-05 2014-04-29 Iscar, Ltd. Cutting body and cutting insert having a stopping recess for a rotary cutting tool

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