JPH032603B2 - - Google Patents

Info

Publication number
JPH032603B2
JPH032603B2 JP56057769A JP5776981A JPH032603B2 JP H032603 B2 JPH032603 B2 JP H032603B2 JP 56057769 A JP56057769 A JP 56057769A JP 5776981 A JP5776981 A JP 5776981A JP H032603 B2 JPH032603 B2 JP H032603B2
Authority
JP
Japan
Prior art keywords
plate
tool
shaped rotating
angle
cutting tool
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 - Lifetime
Application number
JP56057769A
Other languages
Japanese (ja)
Other versions
JPS56163805A (en
Inventor
Deni Haabaato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of JPS56163805A publication Critical patent/JPS56163805A/en
Publication of JPH032603B2 publication Critical patent/JPH032603B2/ja
Granted legal-status Critical Current

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
    • B23B27/08—Cutting tools with blade- or disc-like main parts
    • 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
    • B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
    • B23B27/16—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
    • B23B27/1614—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped with plate-like cutting inserts of special shape clamped against the walls of the recess in the shank by a clamping member acting upon the wall of a hole in the insert
    • B23B27/1622—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped with plate-like cutting inserts of special shape clamped against the walls of the recess in the shank by a clamping member acting upon the wall of a hole in the insert characterised by having a special shape
    • 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
    • B23C5/2204—Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped against the walls of the recess in the cutter body by a clamping member acting upon the wall of a hole in the insert
    • B23C5/2208—Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped against the walls of the recess in the cutter body by a clamping member acting upon the wall of a hole in the insert for plate-like cutting inserts 
    • B23C5/2213—Securing arrangements for bits or teeth or cutting inserts with cutting inserts clamped against the walls of the recess in the cutter body by a clamping member acting upon the wall of a hole in the insert for plate-like cutting inserts  having a special shape
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2200/00—Details of milling cutting inserts
    • B23C2200/04—Overall shape
    • B23C2200/0416—Irregular

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Milling Processes (AREA)

Description

【発明の詳細な説明】 本発明は、内端部において鋭角をなして交差し
互いに対向する２つのフランクと該フランクから
フランクへと延びる第３の境界壁とによつて形成
された少なくとも１つの切欠きを備えた板状回転
バイトホルダーと、前記切欠き内に収容された平
行四辺形の板状回転バイトとから成り、前記板状
回転バイトは、その２辺が前記角に等しい鋭角を
囲んでおり、且つ対角線の交点に板厚を貫通する
孔を有しており、前記切欠きの第３の境界壁には
収容した板状回転バイトの前記鋭角の頂点間の対
角線上にねじ孔が設けられている切削工具に関
し、並びに、前記切削工具の板状回転バイトホル
ダーに装着するための平行四辺形状の板状回転バ
イトに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides at least one boundary wall formed by two opposite flanks intersecting at an acute angle at their inner ends and a third boundary wall extending from flank to flank. It consists of a plate-shaped rotating tool holder with a notch, and a parallelogram-shaped plate-shaped rotating tool accommodated in the notch, and the plate-shaped rotating tool has two sides surrounding an acute angle that is equal to the angle. and has a hole penetrating the plate thickness at the intersection of the diagonal lines, and the third boundary wall of the notch has a screw hole on the diagonal line between the acute-angled vertices of the accommodated plate-shaped rotary cutting tool. The present invention relates to a cutting tool provided therein, and also to a parallelogram-shaped plate-shaped rotary cutting tool for mounting on a plate-shaped rotating cutting tool holder of the cutting tool.

板状回転バイトを有する板状回転バイトホルダ
ーは回転工具として長年公知である。板状回転バ
イトとしては切削縁の設けられた多角形状の硬質
−又は高性能高速度鋼製プレートが役立つが、こ
れらには軸対称的に２、３又は４つの主バイトが
設けられている。板状回転バイトはねじを用いて
板状回転バイトホルダーに固定されている。屑出
し加工の間切欠きの互に向き合うフランクはそこ
に生ずる力の一部、即ちせん断力とシヤフトに加
わる力とを引き受けねばならないが、これに対し
て主切削力はフランクからフランクへ延びる境界
壁に作用する。これらの回転工具には種々の長所
がある。一方ではこの板状回転バイトホルダーは
無限に長持ちする。他方鈍くなつた板状回転バイ
トは簡単に方向転回されうるし又は工具を再び切
れるようにするために未使用のものと交換されう
るものである。鈍くなつた工具の研磨は行われず
そして常に工具における正確な角度が保証されて
いるものである。 BACKGROUND OF THE INVENTION Plate-shaped rotating tool holders having a plate-shaped rotating tool have been known for many years as rotary tools. Polygonal rigid or high-performance high-speed steel plates with cutting edges are useful as plate-shaped rotary tools, which are provided with two, three or four main tools axially symmetrically. The plate-shaped rotating tool is fixed to the plate-shaped rotating tool holder using screws. During the scraping process, the mutually facing flanks of the notch have to take part of the forces occurring there, i.e. the shear forces and the forces applied to the shaft, whereas the main cutting forces are exerted by the boundary wall extending from flank to flank. It acts on These rotary tools have various advantages. On the one hand, this plate-shaped rotating tool holder lasts indefinitely. On the other hand, a plate-shaped rotary cutting tool that has become dull can be easily turned around or replaced with an unused one in order to make the tool cutting again. No sharpening of dull tools is performed and accurate angles on the tool are guaranteed at all times.

本発明は、板状回転バイトホルダーと板状回転
バイトとから成る従来の回転工具と同様の突つ切
り工具又は回転フライスであつて、板状回転バイ
トを板状回転バイトホルダーにしつかりと保持可
能な突つ切り工具又は回転フライスを提供するこ
とを課題とするものである。 The present invention is a parting tool or a rotary milling cutter similar to a conventional rotary tool, which is composed of a plate-shaped rotating tool holder and a plate-shaped rotating tool holder, and the plate-shaped rotating tool can be firmly held in the plate-shaped rotating tool holder. It is an object of the present invention to provide a parting tool or a rotary milling cutter.

この課題は本発明によれば次の様にして解決さ
れる。即ち、２つのフランクのうちの一方を主切
断力に対してほぼ直角に形成し、締付けねじを板
状回転バイトの孔を通つて切欠きのねじ孔にねじ
込み、締付けねじには円錐形の頭部が形成され、
締付ねじをねじ込んだ情態で板状回転バイトに対
してフランクにより形成された角の頂点の方向に
力を加えるために、切欠きのねじ孔を、その中心
とフランクにより形成された角の頂点との間の距
離が、板状回転バイトの孔の中心とフランクによ
り形成された角の頂点との間の距離よりも小さく
なるように位置決めすることによつて解決され
る。更にこの課題は２つの鋭角を有する平行四辺
形の板状回転バイトに付属する自由面を有する２
つの軸対称な主バイトを形成するために、鋭角の
頂点の範囲内で角を切り落し、且つ平行四辺形の
対角線の交点に板厚を貫通する孔を設けることに
よつて解決される。 According to the present invention, this problem is solved as follows. That is, one of the two flanks is formed approximately at right angles to the main cutting force, and the clamping screw is screwed through the hole of the plate-shaped rotating tool into the threaded hole of the notch, and the clamping screw has a conical head. part is formed,
In order to apply force in the direction of the apex of the corner formed by the flank against the plate-shaped rotating tool when the tightening screw is screwed in, insert the screw hole in the notch between its center and the apex of the corner formed by the flank. The problem is solved by positioning the tool so that the distance between the tool and the tool is smaller than the distance between the center of the hole of the plate-like rotary cutting tool and the vertex of the corner formed by the flank. Furthermore, this problem involves a parallelogram plate-shaped rotary cutting tool with two acute angles and a free surface attached to it.
The solution is to cut off the corners within the vertices of the acute angles and provide holes through the plate thickness at the intersections of the diagonals of the parallelogram in order to form two axisymmetric main cutting tools.

添付の図面に基づいて本発明を例示的に説明す
ることにしよう。 The invention will now be explained by way of example on the basis of the attached drawings.

第１図において参照番号１は断面矩形の板状回
転バイトホルダーを示し、その右端は工具締め付
け装置にて締め付けられるように定められてい
る。左端において板状回転バイトホルダー１には
切欠き２が設けられており、一点鎖線で示すよう
にその中に板状回転バイト３が嵌め込まれてい
る。板状回転バイト３は図示していない孔４の中
にねじ込み可能なねじを用いて板状回転バイトホ
ルダー１に固定可能である。板状回転バイトホル
ダー１と板状回転バイト３は突つ切りバイトを形
成する。突つ切り過程の間突つ切りバイトには２
つの互に直角に向いた力が生ずるが、この力をこ
のバイトが引き受けねばならない。これらの力と
はシヤフトに加わる力Psと主切断力Phとである。 In FIG. 1, reference numeral 1 indicates a plate-shaped rotary tool holder having a rectangular cross section, the right end of which is set to be tightened by a tool tightening device. A notch 2 is provided in the plate-shaped rotary cutting tool holder 1 at the left end, and a plate-shaped rotating cutting tool 3 is fitted into the notch 2 as shown by a dashed line. The plate-shaped rotating tool 3 can be fixed to the plate-shaped rotating tool holder 1 using a screw that can be screwed into a hole 4 (not shown). The plate-shaped rotating tool holder 1 and the plate-shaped rotating tool 3 form a parting tool. During the parting process, the parting tool has 2
Two mutually perpendicular forces are generated, and this force must be taken care of by this tool. These forces are the force Ps applied to the shaft and the main cutting force Ph.

第２図は回転フライス用の板状回転バイトホル
ダー５を示すものである。この板状回転バイトホ
ルダー５は、ボス８と一体的に構成されているデ
イスク６を備えている。デイスク６の周辺には中
心軸７の周りに120゜だけずれて軸対称に各一つの
板状回転バイト３′を収容するための切欠き２′が
設けられており、これらは孔４′の中にねじ込ま
れたねじを用いてしつかりと締め付けられてい
る。回転フライス用の板状回転バイトホルダー５
は板状回転バイト３′を収容するための一乃至数
個の切欠き２′を備えうるが、その際切欠き２′は
それが多数存する場合には常に中心軸７に対して
軸対称に配設されるべきである。 FIG. 2 shows a plate-shaped rotary cutting tool holder 5 for a rotary milling cutter. This plate-shaped rotating tool holder 5 includes a disk 6 that is integrally formed with a boss 8. At the periphery of the disk 6, notches 2' are provided axially symmetrically with an offset of 120 degrees around the central axis 7, and these cutouts 2' accommodate each plate-shaped rotating tool 3'. It is firmly tightened using a screw inserted inside. Plate-shaped rotary tool holder 5 for rotary milling
may be provided with one or several notches 2' for accommodating the plate-shaped rotating tool 3', but in this case, if there are a large number of notches 2', the notches 2' are always axially symmetrical with respect to the central axis 7. should be arranged.

第３図から第５図を用いて切欠き２乃至２′及
び板状回転バイト３乃至３′の形状が詳細に説明
される。切欠き２は２つのフランク９及び１０を
具備し、これらは一緒にある鋭角αを成してい
る。角度αの頂点Ｓの範囲で切欠き２には袋状部
１１が設けられ、嵌め込まれた板状回転バイト３
が切欠き２の境界壁９，１０，１２に対して遊び
のないように接し合うように板状回転バイト３を
嵌め込む前に切欠き２のこの角を清掃するのを簡
単化するものである。この切欠き２は更にフラン
ク９からフランク１０へと延びる境界壁１２によ
つて更に限定される。 The shapes of the notches 2 to 2' and the plate-like rotating bits 3 to 3' will be explained in detail with reference to FIGS. 3 to 5. The cutout 2 comprises two flanks 9 and 10, which together form an acute angle α. A bag-shaped part 11 is provided in the notch 2 within the range of the apex S of the angle α, and the plate-shaped rotating tool 3 is fitted into the notch 2.
This simplifies cleaning of this corner of the notch 2 before fitting the plate-shaped rotating tool 3 so that the plate-like rotating tool 3 is in contact with the boundary walls 9, 10, 12 of the notch 2 without any play. be. This recess 2 is further delimited by a boundary wall 12 extending from flank 9 to flank 10.

フランク１０は主切断力Phに対して直角に延
びており、フランク９はシヤフトに加わる力Ps
に対して鋭角に交わり、その角度はαである。す
なわち、フランク９はフランク１０に対して鋭角
αをなして交わる。 The flank 10 extends at right angles to the main cutting force Ph, and the flank 9 has a force Ps applied to the shaft.
intersects at an acute angle, and the angle is α. That is, flank 9 intersects flank 10 at an acute angle α.

板状回転バイト３は平行四辺形のプレートであ
り、それはその幅狭の側部で２つの互に鋭角を成
す角度βで交わるが、これはフランク９及び１０
によつて囲まれた角度αと同じ大きさである。鋭
角βの範囲において板状回転バイト３の角は切り
落され、それによつて自由面１４及び主バイト１
５が形成されている。主バイト１５の幅は板状回
転バイト３の幅側において側方に限定する切欠き
１６によつて規定される。主バイト１５の一方が
摩耗すると、板状回転バイト３はその孔１３の中
心軸の周りに180゜だけ回転され、そして他の主バ
イトが適用されるようにもたらされる。 The plate-like turning tool 3 is a parallelogram plate, which intersects at its narrow sides at two mutually acute angles β, which are connected to the flanks 9 and 10.
is the same size as the angle α enclosed by . The corner of the plate-shaped rotating cutting tool 3 is cut off in the range of the acute angle β, thereby free surface 14 and main cutting tool 1
5 is formed. The width of the main cutting tool 15 is defined by a laterally limited notch 16 on the width side of the plate-shaped rotating cutting tool 3. When one of the main cutting tools 15 wears out, the plate-shaped rotary cutting tool 3 is rotated by 180° about the central axis of its hole 13 and the other main cutting tool is brought to be applied.

孔１３はその中心軸でもつて板状回転バイトを
限定する平行四辺形の対角線の交点を通りそして
一側へ円錐形の拡がり１７を備えている。切欠き
２の孔４は収容した板状回転バイト３の鋭角の頂
点間の対角線上で境界壁１２に設けられている。
角度αの頂点Ｓから孔４の中心までの距離は角度
αの頂点Ｓから板状回転バイト３の孔１３の中心
までの距離より幾らか小さい。孔４の中に今円錐
形のねじヘツド１９を有するねじ１８がねじ込ま
れると、ねじヘツド１９が前記円錐形の拡がり１
７に当たるや否や、フランク９及び１０が交わる
角度αの頂点Ｓの方向に板状回転バイトへの圧力
が生ずる。ねじ１８をしつかりととめると板状回
転バイト３は従つて境界壁１２に対してのみなら
ずフランク９及び１０に対しても押圧される。そ
れによつて突つ切り過程の間生ずる力に抵抗する
ために板状回転バイト３は充分止まることにな
る。 The hole 13 has a central axis passing through the intersection of the diagonals of the parallelogram defining the plate-shaped rotary cutting tool, and has a conical extension 17 to one side. The hole 4 of the notch 2 is provided in the boundary wall 12 on the diagonal line between the acute-angled vertices of the accommodated plate-shaped rotary cutting tool 3.
The distance from the apex S of the angle α to the center of the hole 4 is somewhat smaller than the distance from the apex S of the angle α to the center of the hole 13 of the plate-shaped rotating cutting tool 3. When the screw 18, which now has a conical screw head 19, is screwed into the bore 4, the screw head 19 extends into the conical extension 1.
7, a pressure is created on the plate-shaped rotary cutting tool in the direction of the apex S of the angle α where the flanks 9 and 10 intersect. When the screws 18 are tightened, the rotary plate 3 is thus pressed not only against the boundary wall 12 but also against the flanks 9 and 10. This ensures that the plate-shaped rotary cutting tool 3 stops sufficiently to resist the forces occurring during the parting process.

また、突つ切り過程にあつては、フランク１０
が主切断力Phに対してほぼ直角に延び且つフラ
ンク９がシヤフトに加わる力Psに対して鋭角に
延びるので、主切断力Phとシヤフトに加わる力
Psとの合成力により、板状回転バイト３はフラ
ンク９とフランク１０とにより形成される鋭角内
に押し込まれる。これにより、板状回転バイト３
は切欠き２内にしつかりと保持される。 In addition, in the cutting process, the flank 10
extends almost perpendicularly to the main cutting force Ph, and the flank 9 extends at an acute angle to the force Ps applied to the shaft, so the main cutting force Ph and the force applied to the shaft
Due to the combined force with Ps, the plate-shaped rotating cutting tool 3 is pushed into the acute angle formed by the flanks 9 and 10. As a result, the plate-shaped rotating tool 3
is firmly held within the notch 2.

また、ねじ１８を締付けた状態でねじ１８の円
錐形のヘツド１９が、バイト３の孔１３の円錐形
の拡がり１７の基部に点接触するため、該点接触
部に高い接触圧力が発生し、この接触圧により該
点接触部が局部的に塑性変形する。この局部的な
塑性変形により、ねじ１８の締付状態からの回転
が阻止される。したがつて、切削中にバイト３に
加わる外力が変動しても締付けたねじ１８は容易
には緩まない。これにより、切削中板状回転バイ
ト３は切欠き２内にしつかりと保持される。 Further, when the screw 18 is tightened, the conical head 19 of the screw 18 makes point contact with the base of the conical expansion 17 of the hole 13 of the cutting tool 3, so a high contact pressure is generated at the point of contact. This contact pressure causes the point contact portion to be locally plastically deformed. This local plastic deformation prevents the screw 18 from rotating from the tightened state. Therefore, even if the external force applied to the cutting tool 3 changes during cutting, the tightened screw 18 will not loosen easily. As a result, the plate-shaped rotating cutting tool 3 is firmly held within the notch 2 during cutting.

また、ねじ１８からバイト３への力の伝達は、
ねじ１８の円錐形のヘツド１９とバイト３の孔１
３の円錐形の拡がり１７の基部との点接触によつ
て行われるので、例えばねじとねじ孔との線接触
によつて力の伝達を図る場合等に比べて、ねじ１
８や孔１３の工作精度を必要としない。 In addition, the transmission of force from the screw 18 to the bit 3 is as follows:
Conical head 19 of screw 18 and hole 1 of bit 3
Since the force is transmitted by point contact with the base of the conical extension 17 of the screw 1, the force is transmitted by a line contact between the screw and the screw hole.
8 and hole 13 are not required.

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

第１図は突つ切りバイトに対する板状回転バイ
トホルダーを示し、第２図は回転フライスに対す
る板状回転バイトホルダーを示し、第３図は第１
図における細部を拡大した図であり、第４図は
第３図の平面図を示すものであり、第５図は第３
図における矢印の方向から見た状態を示すもの
である。 １…板状回転バイトホルダー、２，２′…切欠
き、３，３′…板状回転バイト、６…アーム、８
…ボス、９，１０…フランク、１３…孔、１４…
自由面、１５…主バイト、Ph…主切断力、β…
鋭角。 Figure 1 shows a plate-shaped rotating tool holder for a parting tool, Figure 2 shows a plate-shaped rotating tool holder for a rotary milling cutter, and Figure 3 shows a plate-shaped rotating tool holder for a parting tool.
This is an enlarged view of the details in the figure. Figure 4 shows the plan view of Figure 3, and Figure 5 shows the plan view of Figure 3.
This shows the state seen from the direction of the arrow in the figure. 1... Plate-shaped rotating tool holder, 2, 2'... Notch, 3, 3'... Plate-shaped rotating tool holder, 6... Arm, 8
...boss, 9, 10...flank, 13...hole, 14...
Free surface, 15...Main bit, Ph...Main cutting force, β...
acute angle.

Claims (1)

【特許請求の範囲】 １ 内端部において鋭角αをなして交差し互いに
対向する２つのフランク９，１０と該フランクか
らフランクへと延びる第３の境界壁１２とによつ
て形成された少なくとも１つの切欠き２，２′を
備えた板状回転バイトホルダー１，５と、前記切
欠き２，２′内に収容可能な平行四辺形の板状回
転バイト３，３′とから成り、前記板状回転バイ
ト３，３′は、その２辺が前記角αに等しい鋭角
βを囲んでおり、且つ対角線の交点に板厚を貫通
する孔１３を有しており、前記切欠きの第３の境
界壁１２には収容した板状回転バイト３，３′の
鋭角βの頂点間の対角線上にねじ孔４が設けられ
ている切削工具において、 ２つのフランク９，１０のうちの一方が主切断
力の方向に対してほぼ直角に形成され、 締付けねじ１８が前記板状回転バイト３，３′
の孔１３を通つて前記切欠き２，２′のねじ孔４
にねじ込まれており、 前記締付けねじ１８には円錐形の頭部が形成さ
れ、 前記締付ねじ１８をねじ込んだ状態で板状回転
バイト３，３′に対してフランク９，１０により
形成された角αの頂点Ｓの方向に力を加えるため
に、前記ねじ孔４は、その中心と角αの頂点Ｓと
の間の距離が、前記板状回転バイト３，３′の孔
１３の中心と角αの頂点Ｓとの間の距離よりも小
さくなるように位置決めされていることを特徴と
する切削工具。 ２ 回転バイトホルダー５には複数個の切欠き
２′が設けられ、これらはそれぞれアーム６内で
ボス８の周りに軸対称的に配設されており、且つ
該アーム６はボス８と一体的に形成されているこ
とを特徴とする特許請求の範囲第１項記載の切削
工具。 ３ ２つの鋭角βを有する特許請求の範囲第１項
又は第２項による切削工具の板状回転バイトホル
ダー１，５に装備するための平行四辺形の板状回
転バイト３，３′において、付属する自由面１４
を有する２つの軸対称な主バイト１５を形成する
ために、鋭角βの頂点の範囲内で角が切り落され
ており、且つ平行四辺形の対角線の交点に板厚を
貫通する孔１３が設けられていることを特徴とす
る板状回転バイト。Claims: 1. At least one wall formed by two opposing flanks 9, 10 that intersect at an acute angle α at the inner end and a third boundary wall 12 extending from flank to flank. It consists of a plate-shaped rotating tool holder 1, 5 with two notches 2, 2', and a parallelogram plate-shaped rotating tool holder 3, 3' that can be accommodated in the notches 2, 2'. The shaped rotary cutting tools 3, 3' have two sides surrounding an acute angle β equal to the angle α, and have a hole 13 penetrating through the thickness of the plate at the intersection of the diagonals. In a cutting tool in which a screw hole 4 is provided in the boundary wall 12 on a diagonal line between the vertices of an acute angle β of plate-shaped rotary bits 3 and 3' accommodated, one of the two flanks 9 and 10 is used for main cutting. The tightening screw 18 is formed substantially perpendicular to the direction of the force, and
The screw hole 4 of the notch 2, 2' is inserted through the hole 13 of
The tightening screw 18 is formed with a conical head, and when the tightening screw 18 is screwed in, the tightening screw 18 is formed by the flanks 9, 10 against the plate-shaped rotating bits 3, 3'. In order to apply a force in the direction of the apex S of the angle α, the distance between the center of the screw hole 4 and the apex S of the angle α is such that the distance between the center of the screw hole 4 and the apex S of the angle α is the same as the center of the hole 13 of the plate-shaped rotating tool 3, 3'. A cutting tool characterized in that the cutting tool is positioned so as to be smaller than the distance between the angle α and the apex S. 2. The rotating tool holder 5 is provided with a plurality of notches 2', each of which is disposed axially symmetrically around the boss 8 within the arm 6, and the arm 6 is integrally formed with the boss 8. The cutting tool according to claim 1, characterized in that the cutting tool is formed as follows. 3. In the parallelogram plate-shaped rotary tool holders 1, 5 of the cutting tool according to claim 1 or 2 having two acute angles β, the attached Free surface 14
In order to form two axially symmetrical main bits 15 having a radius of A plate-shaped rotating tool that is characterized by:
JP5776981A 1980-04-24 1981-04-16 Laminar rotary cutting tool holder Granted JPS56163805A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH315680A CH645287A5 (en) 1980-04-24 1980-04-24 INSERT INSERT HOLDER.

Publications (2)

Publication Number Publication Date
JPS56163805A JPS56163805A (en) 1981-12-16
JPH032603B2 true JPH032603B2 (en) 1991-01-16

Family

ID=4249820

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5776981A Granted JPS56163805A (en) 1980-04-24 1981-04-16 Laminar rotary cutting tool holder

Country Status (4)

Country Link
JP (1) JPS56163805A (en)
CH (1) CH645287A5 (en)
DE (1) DE3114460A1 (en)
FR (1) FR2481168A3 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3639672A1 (en) * 1986-11-20 1988-06-01 Walter Gmbh Montanwerke TURNING INSERT TURNED TOOL FOR PICKING OR TAPING
JPH077060Y2 (en) * 1989-02-13 1995-02-22 三菱マテリアル株式会社 Throw-away tip for thread cutter
JPH077062Y2 (en) * 1989-03-14 1995-02-22 三菱マテリアル株式会社 Throw-away tip for thread cutting
DE19654815A1 (en) * 1996-12-31 1998-07-02 Heller Geb Gmbh Maschf Indexable cutting tool
SG87163A1 (en) * 1999-08-31 2002-03-19 Ngk Spark Plug Co Cutting tool and throwaway center drill
IL148475A (en) * 2002-03-04 2007-09-20 Gil Hecht Cutting tool
DE102005007676B3 (en) * 2005-02-19 2006-07-13 Mws Schneidwerkzeuge Gmbh & Co. Kg Arrangement and securing of cutting plates using grooves cut in the surface of cutting plate and guide rail positioned on it along which cutting plate is tensioned
CN104772491A (en) * 2015-03-31 2015-07-15 南京益精机械刀具制造有限公司 Multifunctional lathe tool

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4724030U (en) * 1971-04-08 1972-11-17

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1232024A (en) * 1967-04-18 1971-05-19
US3599303A (en) * 1969-01-21 1971-08-17 Valeron Corp Cutting tool insert
JPS51102875U (en) * 1975-02-17 1976-08-18
DE2533035A1 (en) * 1975-07-24 1977-02-10 Zapp Werkzeug & Maschf R Grooving and parting off tool for lathe - has split holder with screw for holding double ended tool
DE7927832U1 (en) * 1979-09-29 1980-04-10 Longwitz, Gerhard, Parow Vallei (Suedafrika) GROOVE OR PARTING TOOL

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4724030U (en) * 1971-04-08 1972-11-17

Also Published As

Publication number Publication date
FR2481168B3 (en) 1982-01-29
FR2481168A3 (en) 1981-10-30
JPS56163805A (en) 1981-12-16
CH645287A5 (en) 1984-09-28
DE3114460C2 (en) 1990-11-22
DE3114460A1 (en) 1982-02-04

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