JPS6131777Y2 - - Google Patents

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Publication number
JPS6131777Y2
JPS6131777Y2 JP18056383U JP18056383U JPS6131777Y2 JP S6131777 Y2 JPS6131777 Y2 JP S6131777Y2 JP 18056383 U JP18056383 U JP 18056383U JP 18056383 U JP18056383 U JP 18056383U JP S6131777 Y2 JPS6131777 Y2 JP S6131777Y2
Authority
JP
Japan
Prior art keywords
throw
angle
tool body
apex
away
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
JP18056383U
Other languages
Japanese (ja)
Other versions
JPS6087612U (en
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 filed Critical
Priority to JP18056383U priority Critical patent/JPS6087612U/en
Publication of JPS6087612U publication Critical patent/JPS6087612U/en
Application granted granted Critical
Publication of JPS6131777Y2 publication Critical patent/JPS6131777Y2/ja
Granted legal-status Critical Current

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Description

【考案の詳細な説明】 本考案は工具本体の外周側面部に複数のスロー
アウエイチツプを着脱自在に装着したスローアウ
エイ式サイドカツタに関する。
[Detailed Description of the Invention] The present invention relates to a throw-away type side cutter in which a plurality of throw-away tips are detachably attached to the outer peripheral side surface of a tool body.

従来、この種のサイドカツタとしては、第1図
ないし第4図に示すように、円板状をなす工具本
体1の外周側面部に複数のチツプ座1aとねじ孔
1bが形成され、この各チツプ座1aに、中心に
取付孔2aを備えた複数の四角形状のスローアウ
エイチツプ2が、その取付孔2aに挿通したクラ
ンプさらねじ3を上記ねじ孔1bに螺合すること
により、着脱自在に取付けられて成るものが知ら
れている。
Conventionally, as shown in FIGS. 1 to 4, this type of side cutter has a plurality of chip seats 1a and screw holes 1b formed on the outer peripheral side surface of a disc-shaped tool body 1. A plurality of rectangular throw-away chips 2 each having a mounting hole 2a in the center are removably mounted on the seat 1a by screwing a clamp countersunk screw 3 inserted into the mounting hole 2a into the screw hole 1b. What is made of is known.

上記従来のサイドカツタにおいては、スローア
ウエイチツプ2の頂角部にブレーカ2bを設けて
切刃のすくい面aを形成し、そのすくい面aが工
具本体1の半径方向では頂角部と工具本体1の中
心を結む線に対し正のすくい角pをなし、また、
工具本体1の厚み方向に対しては負のすくい角q
をなす状態で、スローアウエイチツプ2を工具本
体1に配している。しかしながら、上記ブレーカ
2bの形成は面倒である上、このブレーカ2bの
存在のため、スローアウエイチツプ2を工具本体
1の両側面に装着できるようにするにはその取付
孔2aの両側にクランプさらねじ3の取付用のさ
ら孔部2cを形成する必要があり、また、刃先振
れ精度の確保のためスローアウエイチツプ2の高
精度部(研削部)がスローアウエイチツプ2の全
面に亘るなど、スローアウエイチツプ2の製作加
工が面倒であり、ひいてはその製作コストが高く
なるといつた問題があつた。
In the conventional side cutter described above, a breaker 2b is provided at the apex corner of the throw-away tip 2 to form a rake face a of the cutting edge, and the rake face a is formed between the apex corner and the tool body 1 in the radial direction of the tool body 1. It forms a positive rake angle p with respect to the line connecting the centers of
Negative rake angle q with respect to the thickness direction of the tool body 1
The throw-away tip 2 is disposed on the tool body 1 in such a state that it forms an angle. However, forming the breaker 2b is troublesome, and due to the existence of the breaker 2b, in order to be able to mount the throw-away tip 2 on both sides of the tool body 1, clamp countersunk screws are attached to both sides of the mounting hole 2a. It is necessary to form a countersunk hole 2c for mounting No. 3, and in order to ensure the run-out accuracy of the cutting edge, the high-precision part (ground part) of the throw-away tip 2 must cover the entire surface of the throw-away tip 2. There was a problem in that the manufacturing process of the chip 2 was troublesome and the manufacturing cost increased.

本考案は、スローアウエイチツプを鋭角の頂角
部を有する多角形状に形成するとともに、その鋭
角の頂角部に、頂角部の二等分線に対して左右対
称で、かつ頂角より大なる鋭角をなす切刃部を形
成し、この切刃部により正のすくい角のすくい面
を構成するようにして、上記従来の問題点を解消
したもので、スローアウエイチツプにブレーカを
形成する必要がないためその製作加工が簡単であ
り、しかも切削性の良好なスローアウエイ式サイ
ドカツタを提供することを目的とする。
In the present invention, the throw-away tip is formed into a polygonal shape having an acute apex corner, and the acute apex part is symmetrical with respect to the bisector of the apex part and larger than the apex angle. This method solves the above-mentioned conventional problems by forming a cutting edge with an acute angle and forming a rake face with a positive rake angle. To provide a throw-away type side cutter which is easy to manufacture and process because there is no part, and has good cutting performance.

以下、本考案を図面に基づいて説明する。 Hereinafter, the present invention will be explained based on the drawings.

第5図ないし第8図は本考案の一実施例を示す
もので、図中10は工作機械のスピンドルに取付
けられる従来と同様の円板状の工具本体であり、
この工具本体10の中央にはキー溝11aを備え
た装着孔11が工具本体10をその厚み方向に貫
通して設けられている。また、この工具本体10
の外周部には複数のチツプポケツト12が工具本
体10の周方向に所定のピツチで形成され、この
各チツプポケツト12と外周部がなす隅部の一方
には、チツプ座13がその両側面に交互に形成さ
れている。この各チツプ座13は、工具本体10
の中心方向に向つてほぼV字状をなす側座13
a,13bと、工具本体10の側面にほぼ沿うよ
うに形成された底座13cとから構成されてお
り、この底座13cにねじ孔14が底座13cを
貫通して設けられている。そして、この各チツプ
座13に、中央部に取付孔15を有するほぼ正三
角形状のスローアウエイチツプ16が、その取付
孔15に挿通したクランプさらねじ17を上記各
ねじ孔14に螺合することにより、着脱自在に取
付けられている。
5 to 8 show an embodiment of the present invention, in which numeral 10 denotes a disc-shaped tool body similar to the conventional one, which is attached to the spindle of a machine tool;
A mounting hole 11 having a keyway 11a is provided in the center of the tool body 10 so as to pass through the tool body 10 in its thickness direction. In addition, this tool body 10
A plurality of chip pockets 12 are formed at a predetermined pitch in the circumferential direction of the tool body 10 on the outer periphery of the tool body 10, and chip seats 13 are arranged alternately on both sides at one corner formed by each of the chip pockets 12 and the outer periphery. It is formed. Each chip seat 13 is connected to the tool body 10.
The side seat 13 is approximately V-shaped toward the center of the
a, 13b, and a bottom seat 13c formed to substantially follow the side surface of the tool body 10, and a screw hole 14 is provided in the bottom seat 13c to pass through the bottom seat 13c. A throwaway chip 16 having a substantially equilateral triangular shape having a mounting hole 15 in the center is attached to each chip seat 13, and a clamp countersunk screw 17 inserted through the mounting hole 15 is screwed into each screw hole 14. It is removably attached.

上記各スローアウエイチツプ16は、その頂角
部に、頂角部の二等分線に対して左右対称をな
し、かつ頂角θより大なる鋭角δをなすV字状の
切刃部18がそれぞれ形成されて成るもので、そ
の切刃部18の一方の辺部18aが、工具本体1
0の半径方向においては頂角部と工具本体10の
中心を結ぶ線に対し正のすくい角αをなし、工具
本体10の厚み方向に対しては負のすくい角βを
なすすくい面Aとなり、またその他方の辺部18
bが逃げ面Bとなる状態で、上記工具本体10の
各チツプ座13にそれぞれ配設されている。
Each throwaway tip 16 has a V-shaped cutting edge 18 at its apex that is symmetrical with respect to the bisector of the apex and forms an acute angle δ larger than the apex angle θ. One side 18a of the cutting edge 18 is connected to the tool body 1.
In the radial direction of 0, the rake face A forms a positive rake angle α with respect to the line connecting the apex portion and the center of the tool body 10, and forms a negative rake angle β with respect to the thickness direction of the tool body 10, Also, the other side 18
They are disposed on each chip seat 13 of the tool body 10, with b serving as a flank B.

なお、ここで、上記切刃部18は70゜〜80゜の
鋭角δをなすのが好ましい。また、スローアウエ
イチツプ16の取付孔15にはその片側にのみさ
ら孔部15aが形成されている。
Here, it is preferable that the cutting edge portion 18 forms an acute angle δ of 70° to 80°. Further, the mounting hole 15 of the throwaway tip 16 has a countersunk hole 15a formed only on one side thereof.

しかして、上記のように構成されたサイドカツ
タは、従来と同様、工具本体10の装着孔11を
利用して工作機械のスピンドルに取付けて使用す
る。その際、スローアウエイチツプ16の切刃部
18の一方の辺部18aが正のすくい角αを有す
るすくい面Aとなり、他方の辺部18bが逃げ面
Bとなつて切削加工が進められるので、切削性は
良い。また、上記切刃部18は頂角部の二等分線
に対して左右対称をなしているから、スローアウ
エイチツプ16の取付孔15におけるクランプさ
らねじ17の取付用のさら孔部15aは、その片
側に設けるのみでよい。さらに、刃先振れ精度の
確保のための高精度の研削部は、スローアウエイ
チツプ16の上下面の他は切刃部18のみである
から、加工手間は軽減される。
The side cutter constructed as described above is attached to the spindle of a machine tool by utilizing the mounting hole 11 of the tool body 10, as in the conventional case. At that time, one side 18a of the cutting edge portion 18 of the throw-away tip 16 becomes a rake face A having a positive rake angle α, and the other side 18b becomes a relief face B, and cutting is performed with this, so that the cutting performance is good. In addition, since the cutting edge portion 18 is symmetrical with respect to the bisector of the apex angle, the countersunk hole portion 15a for mounting the clamp countersunk screw 17 in the mounting hole 15 of the throw-away tip 16 only needs to be provided on one side. Furthermore, the high-precision ground portion for ensuring the blade tip runout accuracy is only the cutting edge portion 18, in addition to the upper and lower surfaces of the throw-away tip 16, so that the processing labor is reduced.

なお、上記の実施例においては、スローアウエ
イチツプ16をほぼ正三角形状に形成したが、第
9図に示すように菱形状としてもよく、また、第
10図に示すように平行四辺形状にしてもよい。
この場合、各チツプ座13の形状はスローアウエ
イチツプ16の形状に合わせて形成する必要があ
ることは無論である。
In the above embodiment, the throwaway tip 16 is formed into a substantially equilateral triangular shape, but it may also be formed into a rhombus shape as shown in FIG. 9, or a parallelogram shape as shown in FIG. Good too.
In this case, it goes without saying that the shape of each chip seat 13 must be formed to match the shape of the throwaway chip 16.

以上のように、本考案によれば、多角形状のス
ローアウエイチツプの鋭角の頂角部に、頂角部の
二等分線に対して左右対称で、かつ頂角より大な
る鋭角をなすV字状の切刃部を形成し、この切刃
部により正のすくい角を有するすくい面を構成す
るようにしたので、従来のように、スローアウエ
イチツプにブレーカを設ける必要がなく、したが
つて製作加工が簡単であり、製作コストを抵減す
ることができ、しかも、切削加工性の極めて良い
スローアウエイ式サイドカツタを提供することが
できる。
As described above, according to the present invention, an acute angle V is formed at the acute apex portion of a polygonal throwaway tip, which is symmetrical with respect to the bisector of the apex portion and is larger than the apex angle. Since a letter-shaped cutting edge is formed and this cutting edge forms a rake face with a positive rake angle, there is no need to provide a breaker on the throw-away tip as in the conventional case. It is possible to provide a throw-away type side cutter that is easy to manufacture, can reduce manufacturing costs, and has extremely good cutting workability.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図ないし第4図は従来のスローアウエイ式
サイドカツタを示すもので、第1図は正面図、第
2図は第1図の−矢視断面図、第3図は上面
図、第4図は第1図の鎖線部分の拡大図であ
る。また、第5図ないし第8図は本考案の一実施
例を示すもので、第5図は正面図、第6図は第5
図の−矢視断面図、第7図は上面図、第8図
は第5図の鎖線部分の拡大図である。さらに、
第9図および第10図は、それぞれ別の実施例を
示す正面図である。 10……工具本体、13……チツプ座、16…
…スローアウエイチツプ、18……切刃部、A…
…すくい面、B……逃げ面。
Figures 1 to 4 show a conventional throw-away type side cutter, with Figure 1 being a front view, Figure 2 being a sectional view taken along the - arrow in Figure 1, Figure 3 being a top view, and Figure 4 2 is an enlarged view of the chain line portion in FIG. 1. FIG. 5 to 8 show an embodiment of the present invention, FIG. 5 is a front view, and FIG. 6 is a front view of the present invention.
FIG. 7 is a top view, and FIG. 8 is an enlarged view of the chain line portion in FIG. 5. moreover,
FIG. 9 and FIG. 10 are front views showing different embodiments, respectively. 10... Tool body, 13... Chip seat, 16...
...Throwaway tip, 18...Cutting edge, A...
... Rake face, B... Relief face.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 円板状の工具本体の外周側面部にスローアウエ
イチツプを着脱自在に装着したスローアウエイ式
サイドカツタにおいて、上記スローアウエイチツ
プを鋭角の頂角部を有する多角形状に形成すると
ともに、その鋭角の頂角部に、頂角部の二等分線
に対して左右対称で、かつ頂角より大なる鋭角を
なすV字状の切刃部を形成し、この切刃部の一方
の辺部を正のすくい角を有するすくい面とし、ま
た他方の辺部を逃げ面とした状態で上記スローア
ウエイチツプを上記工具本体に配設したことを特
徴とするスローアウエイ式サイドカツタ。
In a throw-away type side cutter in which a throw-away tip is removably attached to the outer peripheral side surface of a disc-shaped tool body, the throw-away tip is formed into a polygonal shape having an acute apex portion, and the apex angle of the acute angle is A V-shaped cutting edge that is symmetrical with respect to the bisector of the apex angle and has an acute angle larger than the apex angle is formed on the part, and one side of this cutting edge is made with a positive angle. A throw-away type side cutter characterized in that the throw-away tip is disposed in the tool body with a rake face having a rake angle and the other side serving as a relief face.
JP18056383U 1983-11-22 1983-11-22 Throw-away side cutter Granted JPS6087612U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18056383U JPS6087612U (en) 1983-11-22 1983-11-22 Throw-away side cutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18056383U JPS6087612U (en) 1983-11-22 1983-11-22 Throw-away side cutter

Publications (2)

Publication Number Publication Date
JPS6087612U JPS6087612U (en) 1985-06-15
JPS6131777Y2 true JPS6131777Y2 (en) 1986-09-16

Family

ID=30391480

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18056383U Granted JPS6087612U (en) 1983-11-22 1983-11-22 Throw-away side cutter

Country Status (1)

Country Link
JP (1) JPS6087612U (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0453852Y2 (en) * 1986-03-19 1992-12-17
JPH0529776Y2 (en) * 1986-04-01 1993-07-29

Also Published As

Publication number Publication date
JPS6087612U (en) 1985-06-15

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