WO2013053191A1 - T型铣刀 - Google Patents

T型铣刀 Download PDF

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Publication number
WO2013053191A1
WO2013053191A1 PCT/CN2012/001023 CN2012001023W WO2013053191A1 WO 2013053191 A1 WO2013053191 A1 WO 2013053191A1 CN 2012001023 W CN2012001023 W CN 2012001023W WO 2013053191 A1 WO2013053191 A1 WO 2013053191A1
Authority
WO
WIPO (PCT)
Prior art keywords
groove
blade
milling cutter
cutter body
positioning
Prior art date
Application number
PCT/CN2012/001023
Other languages
English (en)
French (fr)
Inventor
陈立诚
Original Assignee
Chen Li-Cheng
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 Chen Li-Cheng filed Critical Chen Li-Cheng
Publication of WO2013053191A1 publication Critical patent/WO2013053191A1/zh

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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
    • B23C5/10—Shank-type cutters, i.e. with an integral shaft
    • B23C5/1054—T slot cutters
    • B23C5/1072—T slot cutters with removable cutting inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2210/00—Details of milling cutters
    • B23C2210/02—Connections between the shanks and detachable cutting heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2240/00—Details of connections of tools or workpieces
    • B23C2240/24—Connections using screws

Definitions

  • the present invention relates to a ⁇ -type milling cutter, and more particularly to a ⁇ -type milling cutter that can detachably replace various components. Background technique
  • the grooves are formed in a plurality of shapes such as a dome shape, a V shape, and a dovetail shape.
  • the conventional boring cutter for milling a groove having a ⁇ -shaped cross section is formed by integrally forming a high-hardness steel such as high-speed steel or tungsten steel, and the cutting end is provided with two cutting at intervals. Part, the corresponding groove is milled on the workpiece.
  • a high-hardness steel such as high-speed steel or tungsten steel
  • the cutting end is provided with two cutting at intervals. Part, the corresponding groove is milled on the workpiece.
  • the above-mentioned boring cutter is made in one piece, when the cutting edge of one of the cutting portions is damaged, in order to maintain the concave The integrity of the inner wall of the groove, even if the cutting edge of the other cutting part is still intact, usually only the entire set of boring cutters can be eliminated and replaced, which is quite uneconomical and waste material.
  • the object of the present invention is to provide a detachable replacement by the various parts of the cutter. Design, you only need to replace the damaged part to continue to use the boring cutter.
  • the boring cutter of the present invention comprises a shank, a cutter body and a plurality of blades
  • the bottom surface of the shank is provided with a positioning block and two fixing holes, and the positioning block is a long rectangular cylinder, and the two fixing holes are respectively located at two sides of the positioning block;
  • a positioning groove corresponding to the positioning block is disposed at a center of one side surface of the cutter body for positioning
  • a plurality of blade holders are disposed on the two sides of the slot, and the positioning block is fitted to the positioning slot, and the through holes are respectively penetrated by a fixing member and combined with the plurality of fixing holes.
  • Fixed; the plurality of blades are detachably disposed on the plurality of blade holders.
  • the T-shaped milling cutter wherein the two through holes are respectively located outside the two long sides of the positioning groove.
  • the bottom groove surface of the positioning groove penetrates the other side surface of the cutter body, so that the cutter body is formed into a perforated shape, and the positioning block is located inside the positioning groove.
  • the T-shaped milling cutter wherein the outer side walls of the two short sides of the positioning block are formed in an arc convex shape; the inner groove faces at the two short sides of the positioning groove are formed in a concave arc shape.
  • the insert base is provided with a coupling hole, and the insert is provided with a through hole, and the through hole is penetrated by a joint member and fixed to the joint hole.
  • the T-type milling cutter wherein the insert seat is a rectangular recess recessed in the surface of the cutter body, and the adjacent inner wall surfaces of the insert seat form a 4-sided surface;
  • the blade is a rectangular block, and adjacent two outer side wall faces of the blade respectively abut against adjacent two abutting faces of the blade holder.
  • a cutting portion is formed in each corner of the block of the blade, wherein a cutting portion protrudes outside the blade holder, and another cutting portion is located in the receiving groove.
  • the T-shaped milling cutter wherein one end portion of each of the through holes of the cutter body is concavely formed into a tapered plug groove;
  • the fixing member includes a plug head and a plug portion, and the plug head has a taper shape And fit in the plug groove.
  • the outer walls of the two sides of the shank are respectively concavely formed to form a grip portion.
  • the shank, the body and the blades are all detachable and replaceable, so that the user can replace the shank, the body or the blade when the shank, the blade or the blade is damaged, and the rest of the components are replaced. Can be retained for continued use, without having to replace the entire group;
  • the two through holes of the cutter body are respectively located outside the two long sides of the positioning groove, so that it can be applied to a small T-type milling cutter;
  • the outer wall surface of the long side of the positioning block abuts against the inner wall surface of the long side of the positioning groove, thereby increasing the strength of the joint between the shank and the cutter body, and Positioning each other without turning;
  • the blade has four cutting portions, and when one of the cutting portions is damaged, by rotating the direction of the blade, the other cutting portion protrudes out of the blade holder, and can continue to be used, and the outer side wall surface and the abutting surface abut each other, The blade is steadily coupled to the blade slot;
  • the present invention achieves the advantages of effective material saving and cost compared to the prior art.
  • Figure 1 is a perspective view of the present invention
  • Figure 2 is an exploded perspective view of the present invention
  • Figure 3 is a schematic cross-sectional view of the present invention.
  • the present invention is a T-type milling cutter, as shown in Figures 1 and 2, which includes a shank 10, a cutter body 20 and a plurality of blades 30;
  • the shank 10 is a rod body, and the top end of the rod body is a connecting portion 1 1 that can be connected to the machine tool.
  • the bottom end surface of the rod body is provided with a positioning block 12 and two fixing holes 13 , and the positioning block 12 is a long rectangular cylinder.
  • the fixing holes 13 are all screw holes and are respectively located outside the two long sides of the positioning block 12, and the two fixing holes 13 each have a corresponding fixing member 15.
  • the positioning block 12 The outer side walls of the two short sides are formed in an arc shape.
  • the outer walls of the two sides of the shank 10 are respectively recessed to form a grip portion 14.
  • the fixing member 15 includes a tapered plug head 150 and an external thread. Plug body 151;
  • the cutter body 20 is a columnar block body, and a positioning groove 21 is disposed at a center of one side surface thereof, and the positioning groove 21 is a long rectangular groove corresponding to the positioning block 12, and the cutter body 20 is 20
  • a uniform hole 22 is disposed on the outer surface of each of the two long sides of the positioning groove 21.
  • one end portion of each of the through holes 22 is concavely formed with a tapered plug groove 220 on the outer side of the cutter body 20.
  • a plurality of blade holders 23 are disposed at intervals.
  • two opposite ends of the cross-shaped column side surface of the blade body 20 are provided with two blade holders 23 on the other side surface of the cross-shaped column body.
  • the other two opposite ends are further provided with two blade holders 23, and the four blade holders 23 disposed on both sides of the blade body 20 are designed to be equally spaced, and the blade holder 23 is a rectangle.
  • a groove is formed on the inner groove surface, and a coupling hole 233 is formed on the two inner wall surfaces.
  • the coupling hole 230 is a screw hole and has a corresponding coupling member 23 1 and is disposed on the blade seat.
  • a receiving groove 232 is defined in the inner groove surface of the inner groove surface of the second groove surface 233, and the inner groove surface at the short side of the positioning groove 21 is formed in a concave arc shape;
  • the two blades 30 are rectangular blocks made of tungsten steel or high-speed steel, and a cutting portion 31 is formed at each corner of the block, and a through hole 32 is formed in the sidewall surface of the blade 20, in a specific embodiment of the present invention.
  • the pass is a counterbore, and the diameter of one end of the counterbore is larger than the diameter of the other end.
  • the positioning block 12 of the shank 10 is first fitted into the positioning groove 21 of the blade body 20, and the plug portion 151 of the two fixing members 15 are respectively penetrated.
  • the through hole 22 of the cutter body 20 is combined with the fixing hole 13 of the shank 10 to fix the shank 10 and the cutter body 20 to each other.
  • the outer side wall surface of the long side of the positioning block 12 abuts against the positioning groove 21 .
  • the inner side groove surface of the long side can be positioned relative to each other without relative rotation.
  • the plug head 150 of the fixing member 15 is located inside the plug groove 220 of the through hole 22;
  • Each of the blades 30 is detachably mounted to the opposite blade holder 23 of the blade body 20, and two adjacent sides of the blade 30 abut against the adjacent abutting faces 233 of the blade holder 23, with the coupling member 23 1
  • the through hole 32 extending through the blade 30 and the coupling hole 230 are fixedly coupled to each other.
  • the plug of the coupling member 23 1 is located inside the through hole 32 of the blade 30 having a larger aperture end, so that the blade 30 and the blade holder 23 are mutually connected.
  • One of the cutting portions 31 of the blade 30 protrudes outside the blade holder 23, and the other cutting portion 31 is located in the receiving groove 232.
  • the T-type milling cutter of the present invention can be connected to the machine tool by the connecting portion 1 1 , and the positioning block 12 is provided with the outer side wall surface of the long side against the inner groove surface of the long side of the positioning groove 21 , and the shank 10 is provided. Good bonding strength between the cutter bodies 20;
  • the cutter body may also be designed as a through hole formed through the cutter body, and also penetrates the other side surface of the cutter body at the bottom groove surface of the positioning groove to form a perforated shape so as to be formed into a a positioning block corresponding to the positioning block of the shank, the positioning block of the shank can be fitted into the positioning groove, the positioning block is located inside the positioning groove and does not protrude outside, the outer wall surface of the positioning block and the positioning block Inner wall of the positioning groove Abutting each other, the utility model can also provide the effect of providing good bonding strength between the shank and the cutter body.
  • the end of the positioning block is located inside the positioning groove and does not protrude outside the positioning groove, so that the T-type milling cutter can be Stable force mouth workpiece.

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

Abstract

一种T型铣刀，其包括一刀柄（10）、一刀体（20）及多片刀片（30）；该刀柄的一端面设有一定位块（12）及两固定孔（13），该定位块呈长矩形，于该刀体一侧面的中央处设置一与定位块相对应的定位槽（21），于刀体的外侧设有多片刀片座（23），该定位槽套设于该定位块，并以两固定件（15）贯穿刀体后再与该两固定孔相互结合固定；该多片刀片可拆卸的分别设置于该多片刀片座上；该T型铣刀各部分可拆卸，使用者可在刀体或刀片损坏时分别将其进行替换，而其余构件则可保留下来继续使用，有效节省材料及成本。

Description

T型铣刀 技术领域
本发明涉及一种 τ型铣刀，特别涉及一种可拆卸更换各部组件的 τ型铣刀。 背景技术
在一般的机械加工中， 常见利用工具机驱动刀具高速旋转， 进而在各种工 件上进行铣槽、 钻孔等铣削作业， 其中， 配合所使用的刀具的不同， 可依据需 求在该多个工件上铣削出断面呈 Τ形、 V形、 鸠尾形等多种形状的凹槽。
现有的用以铣削出断面呈 Τ形的凹槽的 Τ型铣刀， 是以高速钢或钨钢等硬 度高的金属以一体成形的方式制作， 该铣刀的底端间隔设有两切削部， 以相应 的在工件上铣削出 Τ形凹槽， 然而， 由于上述 Τ型铣刀是以一体成形方式制作 而成， 因此当其中一切削部的刀刃损坏时， 为保持所铣削出的凹槽内壁面的完 整性， 即使另一切削部的刀刃仍然完好无缺， 通常只能将整组 Τ型铣刀淘汰、 更换， 相当的不经济且浪费材料。
现有技术中有另一种 Τ型铣刀， 其具有一刀身， 于该刀身底端两侧设置两 刀片座， 并分别于该两刀片座可拆卸的设置一刀片， 凭借刀片可拆卸的设计， 当其中一刀片的刀刃损坏时， 只须将刀片进行更换即可继续使用；
然而， 因操作者使用工具机时， 可能会因操作上的失误使刀身碰撞至工件 或夹持机具等， 使刀身损坏， 此时亦只能将整组 Τ型铣刀淘汰、 更换， 如此将 造成材料的浪费以及金钱上的损失。 发明内容
有鉴于现有技术的 Τ型铣刀于刀片或刀身损坏时， 只能将整组 Τ型铣刀淘 汰、 更换的缺点， 本发明的发明目的在于提供一种凭借刀具各部份可拆卸更换 的设计， 只须更换损坏的部份即可继续使用的 Τ型铣刀。
为达到上述的发明目的， 本发明的 Τ型铣刀， 其包括有一刀柄、 一刀体及 多片刀片；
该刀柄的底面设有一定位块及两固定孔， 该定位块为长矩形柱体， 该两固 定孔分别位于该定位块的两侧；
该刀体的一侧表面的中央处设有一与该定位块相对应的定位槽， 于该定位 槽两侧各设置有一贯孔， 该刀体的外侧间隔设置有多片刀片座， 该定位块嵌合 于该定位槽， 各贯孔分别以一固定件贯穿并与该多个固定孔相互结合固定； 该多片刀片分别能够拆卸的设置于该多片刀片座上。
所述的 T型铣刀， 其中， 该两贯孔分别位于该定位槽两长边的外侧。
所述的 T型铣刀， 其中， 该定位槽的底部槽面贯穿该刀体的另一侧表面， 使该刀体形成为穿孔状， 该定位块位于该定位槽内部。
所述的 T型铣刀， 其中， 该定位块的两短边处的外侧壁形成为弧凸状； 该定位槽两短边处的内侧槽面形成为凹弧状。
所述的 T型铣刀， 其中， 该定位块的外侧壁面抵靠于该定位槽的内侧槽面。 所述的 T型铣刀， 其中， 该刀片座上穿设有一结合孔， 该刀片上穿设有一 通孔， 该通孔以一结合件贯穿并与该结合孔相互结合固定。
所述的 T型铣刀， 其中， 该刀片座为该刀体表面所凹设的一矩形凹槽， 该 刀片座两相邻的内壁面各形成一 4氐面；
该刀片为矩形块体， 刀片的相邻两外侧壁面分别抵顶在刀片座的相邻两抵 面。
所述的 T型铣刀， 其中， 该刀片座的内侧槽面且位于两抵面之间凹设有一 容设槽；
该刀片的块体各角落分别形成一切削部， 其中一切削部突伸于该刀片座的 外侧， 另一切削部位于该容设槽中。
所述的 T型铣刀， 其中， 该刀体的各贯孔的一端部内凹形成锥形的栓头槽; 该固定件包括有一栓头部及一栓体部， 该栓头部呈锥形且嵌合于该栓头槽 内。
所述的 T型铣刀， 其中， 该刀柄的两侧外壁分别内凹形成握持部。
凭借上述技术手段的运用， 由于该刀柄、 刀体及各刀片皆为可拆卸、 更换 的设计， 让使用者可在刀柄、 刀体或刀片损坏时分别将其进行替换， 而其余构 件则可以保留下来继续使用， 不必整组进行更换；
该刀体的两贯孔分别位于该定位槽两长边的外侧， 使其可应用在小型的 T 型铣刀上；
该 T型铣刀于安装在工具机上使用时， 凭借该定位块长侧的外壁面抵顶于 该定位槽长侧的内壁面， 增加该刀柄及刀体之间结合的强度， 并使两者相互定 位而不会转动； 该刀片具有四切削部， 于其中一切削部损坏时， 通过转动刀片的方向， 以 另一切削部突伸于刀片座外， 即可继续使用， 其外侧壁面与抵面相互抵顶， 提 供该刀片可稳固的与该刀片槽相互结合；
综上所述， 本发明相较于现有技术， 确实可达到有效节省材料及成本的优 点。 附图说明
图 1为本发明的立体外观图；
图 2为本发明的立体分解图；
图 3为本发明的剖面示意图。
附图标记说明： 10-刀柄； 11-连接部； 12-定位块； 13-固定孔； 14-握持部； 15-固定件； 150-栓头部； 151-栓体部； 20-刀体； 21-定位槽； 22-贯孔； 220-栓头 槽； 23-刀片座； 230-结合孔； 231 -结合件； 232-容设槽； 233-抵面； 30-刀片； 31-切削部； 32-通孔。 具体实施方式
本发明为一种 T型铣刀， 请参阅图 1及图 2所示， 其包括有一刀柄 10、 一 刀体 20及多片刀片 30;
该刀柄 10为一杆体， 杆体顶端为一可连接至工具机的连接部 1 1 , 杆体底端 端面设有一定位块 12及两固定孔 13 , 该定位块 12为长矩形柱体， 该两固定孔 13皆为螺孔且分别位于该定位块 12两长边的外侧， 该两固定孔 13各具有一相 对应的固定件 15， 于图中所示的具体实施例中， 该定位块 12两短边处的外侧壁 形成为弧凸状， 该刀柄 10的两侧外壁分别内凹形成一握持部 14 , 该固定件 15 包括有一锥形的栓头部 150及一具有外螺纹的栓体部 151 ;
该刀体 20为一^ h字柱状块体， 于其一侧表面的中央处设有一定位槽 21， 该 定位槽 21为长矩形凹槽并与该定位块 12相对应， 于该刀体 20表面且位于定位 槽 21两长边的外侧各设置有一贯孔 22， 请配合参阅图 3所示， 各贯孔 22的一 端部内凹形成有一锥形的栓头槽 220 ,于刀体 20的外侧间隔设置多片刀片座 23 , 于本发明的具体实施例中， 于刀体 20的十字型柱体一侧表面的两相对端设置有 两刀片座 23 , 于其十字型柱体另一侧表面的另两相对端又设置有两刀片座 23 , 在刀体 20两侧面所设的四刀片座 23设计为等间距设置， 该刀片座 23为一矩形 凹槽且内侧槽面上穿设有一结合孔 230， 及在两相邻内壁面形成有抵面 233， 该 结合孔 230为螺孔且具有一相对应的结合件 23 1， 并于该刀片座 23的内侧槽面 且位于两抵面 233之间凹设一容设槽 232 , 该定位槽 21两短边处的内侧槽面形 成为凹弧状；
该两刀片 30为以钨钢或高速钢制成的矩形块体， 块体各角落分别形成一切 削部 31 , 该刀片 20的侧壁面上穿设有一通孔 32 , 于本发明的具体实施例中， 该通 为一沉孔， 沉孔一端的 径大于另一端的 径。
请参阅图 2及图 3所示， 于组装时， 首先以该刀柄 10的定位块 12嵌合于 该刀体 20的定位槽 21，并以该两固定件 15的栓体部 151分别贯穿刀体 20的贯 孔 22再与该刀柄 10的固定孔 13结合固定， 使该刀柄 10与刀体 20相互连接固 定， 凭借该定位块 12长侧的外侧壁面抵顶于该定位槽 21长侧的内侧槽面， 可 使两者相互定位而不会相对转动， 于图中所示的实施例中， 该固定件 15的栓头 部 150位于该贯孔 22的栓头槽 220内部；
各刀片 30分别可拆卸地安装至该刀体 20的相对刀片座 23上， 且刀片 30 的其中两相邻侧面抵顶在刀片座 23的相邻两抵面 233处， 以该结合件 23 1贯穿 该刀片 30的通孔 32与该结合孔 230相互结合固定， 该结合件 23 1的栓头位于 该刀片 30的通孔 32具有较大孔径一端的内部， 以将刀片 30与刀座 23相互结 合固定， 该刀片 30的其中一切削部 31突出于刀片座 23外侧， 另一切削部 31 位于该容设槽 232中。
由此， 本发明的 T型铣刀可以连接部 1 1连接至工具机， 该定位块 12以长 侧的外侧壁面抵顶于该定位槽 21长侧的内侧槽面， 提供该刀柄 10及刀体 20间 具有良好的结合强度；
在使用的过程中， 当刀片 30的切削部 31损坏时， 只需取下结合件 231及 刀片 30 , 将刀片 30旋转至另一方向再结合至刀片座 23 , 以其未损坏的另一切 削部 3 1突伸于刀片座 23外， 即可继续使用， 而不需要将刀片 30取下并更换新 品， 可于刀片 30的四切削部 31皆损坏时再进行更换新品的动作， 确实可达到 有效节省材料及成本的优点。
另外， 该刀体亦可设计为于该刀体上贯穿成形的穿孔， 亦在该定位槽的底 部槽面贯穿该刀体的另一侧表面， 使其形成为穿孔状， 使其形成为与刀柄的定 位块相对应的长矩形孔， 刀柄的定位块可嵌合至该定位槽中， 该定位块位于定 位槽内部而不会突伸出其外部， 定位块的各外侧壁面与该定位槽的各内侧孔壁 相互抵靠， 如此亦可达到提供刀柄及刀体间具有良好的结合强度的功效， 该定 位块的端部位于该定位槽内部， 而不会突出于定位槽外， 使 T型铣刀可稳定的 力口工工件。

Claims

1.一种 T型铣刀， 其特征在于， 包括有一刀柄、 一刀体及多片刀片； 该刀柄的底面设有一定位块及两固定孔， 该定位块为长矩形柱体， 该两固 定孔分别位于该定位块的两侧；
该刀体的一侧表面的中央处设有一与该定位块相对应的定位槽， 于该定位 槽两侧各设置有一贯孔， 该刀体的外侧间隔设置有多片刀片座， 该定位块嵌合 于该定位槽， 各贯孔分别以一固定件贯穿并与该多个固定孔相互结合固定； 该多片刀片分别能够拆卸的设置于该多片刀片座上。
2.如权利要求 1所述的 T型铣刀， 其特征在于， 该两贯孔分别位于该定位槽 两长边的外侧。
3.如权利要求 2所述的 T型铣刀， 其特征在于， 该定位槽的底部槽面贯穿该 刀体的另一侧表面， 使该刀体形成为穿孔状， 该定位块位于该定位槽内部。
4.如权利要求 3所述的 T型洗刀， 其特征在于， 该定位块的两短边处的外侧 壁形成为弧凸状；
该定位槽两短边处的内侧槽面形成为凹弧状。
5.如权利要求 4所述的 T型铣刀， 其特征在于， 该定位块的外侧壁面抵靠于 该定位槽的内侧槽面。
6.如权利要求 5所述的 T型铣刀，其特征在于，该刀片座上穿设有一结合孔， 该刀片上穿设有一通孔， 该通孔以一结合件贯穿并与该结合孔相互结合固定。
7.如权利要求 1至 6项任一所述的 T型铣刀， 其特征在于， 该刀片座为该刀 体表面所凹设的一矩形凹槽， 该刀片座两相邻的内壁面各形成一抵面；
该刀片为矩形块体， 刀片的相邻两外侧壁面分别抵顶在刀片座的相邻两抵 面。
8.如权利要求 7所述的 T型铣刀， 其特征在于， 该刀片座的内侧槽面且位于 两抵面之间凹设有一容设槽；
该刀片的块体各角落分别形成一切削部， 其中一切削部突伸于该刀片座的 外侧， 另一切削部位于该容设槽中。
9.如权利要求 8所述的 T型铣刀， 其特征在于， 该刀体的各贯孔的一端部内 凹形成锥形的栓头槽；
该固定件包括有一栓头部及一栓体部， 该栓头部呈锥形且嵌合于该栓头槽 内。
10.如权利要求 9所述的 T型铣刀， 其特征在于， 该刀柄的两侧外壁分别内 凹形成握持部。
PCT/CN2012/001023 2011-10-12 2012-07-31 T型铣刀 WO2013053191A1 (zh)

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