JPS614619A - Rotary cutting tool - Google Patents
Rotary cutting toolInfo
- Publication number
- JPS614619A JPS614619A JP12529384A JP12529384A JPS614619A JP S614619 A JPS614619 A JP S614619A JP 12529384 A JP12529384 A JP 12529384A JP 12529384 A JP12529384 A JP 12529384A JP S614619 A JPS614619 A JP S614619A
- Authority
- JP
- Japan
- Prior art keywords
- blade
- cutting
- protrusion
- cutting tool
- clamper
- 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.)
- Granted
Links
Classifications
-
- 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
- B23F21/16—Hobs
- B23F21/163—Hobs with inserted cutting elements
- B23F21/166—Hobs with inserted cutting elements in exchangeable arrangement
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Processing (AREA)
Abstract
Description
【発明の詳細な説明】
(産業上の利用分野)
本発明は円筒形本体の外周面に切刃チップを持つブレー
ドを固定した回転切削工具に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a rotary cutting tool having a blade having a cutting tip fixed to the outer peripheral surface of a cylindrical body.
(従来の技術)
回転切削工具は超硬質合金の開発と共に従来の高速度鋼
一体品から組立式のスローアウェイ方式に変υつ\ある
。一体品であっても切刃が一列一回転であわばスローア
ウェイチップを取付けるチップ座の加工は側面であわば
比較的容易に出来るがスクイ面方向は隣接切刃の関係で
非常に困難である。また、カートリッジ方式やロケータ
方式もあるが取付は場所に制限を受ける事が多いのでブ
レードと本体とを組立式とする方が材料面や加工工数の
面から経済的にも性能的にも有利な事が多い。(Prior art) Rotary cutting tools have changed from the conventional high-speed steel integral parts to the assembled indexable type with the development of cemented carbide. Even if it is a one-piece product, the cutting blade rotates one row at a time, so machining the chip seat where the indexable insert is attached can be done relatively easily on the side, but it is extremely difficult in the direction of the rake face due to the relationship between adjacent cutting edges. . There are also cartridge and locator methods, but installation is often limited by location, so it is more economical and performance-friendly to assemble the blade and main body in terms of materials and processing time. There are many things.
切削が三列、圧動或はネジ状になると切刃部を研削加工
したり、チップ座加工する事は一体品での加工は更に困
難となる。特に歯車の創成式歯切り工具であるホブは切
刃をネジ状に配列することが絶体条件であるためスロー
アウェイ化したホブに関する発明は非常に少ない。When cutting is performed in three rows, pressure motion, or threaded, it becomes even more difficult to grind the cutting edge or machine the chip seat in one piece. In particular, since it is essential for a hob, which is a gear-generating gear cutting tool, that the cutting edges be arranged in a threaded manner, there are very few inventions related to indexable hobs.
しかしこの種の発明として特開昭57−102722号
公報に開示さ2″したものは、切刃をネジ状に配列する
ために、ホブの4歯分に相当するブレードを1単位とし
て、こtを本体に設けた螺旋状案内溝に挿入したり、本
体外周面に螺旋状の細条を設け、前記ブレードの底面に
同様の案内溝を穿設して装着すると共に、切刃の位相を
約4−ピッチずらせた事を特徴としている。しかし、以
下の■〜■の如き問題がある。However, this type of invention disclosed in Japanese Patent Application Laid-open No. 57-102722 discloses that in order to arrange the cutting edges in a threaded manner, one unit is a blade corresponding to four teeth of a hob. The blade is inserted into a spiral guide groove provided on the main body, or a spiral strip is provided on the outer circumferential surface of the main body, and a similar guide groove is drilled on the bottom of the blade. 4- It is characterized by a pitch shift. However, there are problems as shown in (1) to (2) below.
■本体て設ける螺旋状溝や突状の細条は角ネジの加工と
同様なので精度よく加工出来るが、そ扛・に嵌合するブ
レードの嵌合部の加工は非常に難しい。ホブは円周方向
で12歯程度が一般的であるから4歯分の範囲は円周の
+(120°)に当り、円筒でないものに120°範囲
を両面とも螺旋状に加工し、本体の螺旋溝に精度よく嵌
合させることは非常に多くの工数と加工用の設備や治具
が必要である突条の細条に嵌合させる場合も同様である
。■The spiral grooves and protruding strips provided on the main body can be machined with high precision as they are similar to the process of square screws, but the fitting part of the blade that fits into the blade is extremely difficult to machine. Hobs generally have about 12 teeth in the circumferential direction, so the range of 4 teeth corresponds to + (120°) of the circumference, so we machined the 120° range into a spiral shape on both sides of the non-cylindrical body. Accurately fitting into a spiral groove requires a large number of man-hours and processing equipment and jigs.The same applies to fitting into a thin strip of a protrusion.
■チップ交換は容易であるが一つめブレードにチップを
収納する座が4歯分必要であるので1箇所破損しても4
歯分のブレードを交換する必要がある。■It is easy to replace the tip, but the first blade requires a seat that accommodates the tip, so if one part is damaged, the seat for storing the tip will be replaced.
It is necessary to replace the toothed blade.
■ホルダの2箇所だけでボルト締めしであるので切削ト
ルクがか5つだ場合不安定である。■Since the holder is bolted at only two places, it will be unstable if the cutting torque is 5 or more.
■円周方向の力に対してストッパを設けておら穴
ず、ボルトはバカ突に挿入されるのでボルトの締付力だ
けでは動く恐わがある。■Since there is no stopper provided against the force in the circumferential direction, there is no hole, and the bolt is inserted into the hole, so there is a risk that it will move with just the tightening force of the bolt.
(本発明の目的〕
本発明は上述の従来品の問題点を解決すべくなさnたも
のであって、ブレードの加工が容易であり、かつ切削ト
ルクに対して安定であり、剛性、精度共に優nた回転切
削工具を提供しようとするものである。(Objective of the present invention) The present invention was made to solve the problems of the conventional products mentioned above, and the blade is easy to process, stable against cutting torque, and has both rigidity and precision. The object is to provide an excellent rotary cutting tool.
(本発明の構成)
本体の外周円筒面に両側面が軸心に対して垂直な面をも
つ螺旋突条を削成し、該螺旋突条を分断、削除して多数
の突起を形成すると共に、ブレードをチップの切刃1単
位ごとに形成し、かつブレードの前後端部にブレードの
両側面と平行な面をもつ溝を設け、本体の前記突起とブ
レードの溝とを係合させ、隣接するブレードの前後端部
間てクランパを載置しブレードをねじ締め固着したもの
であって、ブレードの精度の高い加工が可能となり、才
だプレートのチップ座が破損した場合でも破損したー歯
分のブレードたけ交換するだけでよい。(Structure of the present invention) A spiral protrusion having both side surfaces perpendicular to the axis is cut on the outer peripheral cylindrical surface of the main body, and the spiral protrusion is divided and deleted to form a large number of protrusions. , a blade is formed for each cutting edge unit of the chip, and grooves having surfaces parallel to both side surfaces of the blade are provided at the front and rear ends of the blade, and the protrusion of the main body is engaged with the groove of the blade, and the adjacent A clamper is placed between the front and rear ends of the blade, and the blade is fixed with screws.This enables highly accurate machining of the blade, and even if the chip seat of the plate is damaged, the blade will not be damaged. All you need to do is replace the blade.
′−!だ、クランパで1箇のブレードの両端から締めつ
けるので、切削トルクに対して安定するなどの優nた効
果を奏するの・である。′-! Since the clamper tightens the blade from both ends, it has excellent effects such as being stable against cutting torque.
(実施例の説明)
次にこの発明の実施例について説明する。実施例として
スローアウェイ方式の組立ホブを示した。(Description of Examples) Next, examples of the present invention will be described. As an example, a throw-away type assembly hob is shown.
二番取り研削さnた従来品のように、切刃が摩耗し/C
場合スクイ面を再研削して何回でも使用するものではな
く、常に一定の断面だけを切刃として使用するものであ
る。The cutting edge wears out like the conventional product with double counter grinding.
In this case, the rake face is not re-ground and used again and again, but only a constant cross section is always used as a cutting edge.
従ってプレート自身を螺旋状にする必要はなく、一定断
面に形成される切刃がホブのツル巻線上にあって、切削
に必要な側面二番角、外周二番角が与えられるだけでよ
い。故に切刃部を保持するプL/−ドの基部の形状は理
論的にはどのような形状でもよい。しかしブレード取替
え時の互換性、製作の容易さ、取付は強度の向上および
加工精度等を考えて実施例では最も単純な平面部を多く
選んだ。Therefore, there is no need for the plate itself to be spiral, and it is only necessary that the cutting edge formed in a constant cross section be placed on the helical winding of the hob to provide the necessary angles on the side and outer circumference for cutting. Therefore, the shape of the base of the blade that holds the cutting edge may be theoretically of any shape. However, in consideration of compatibility at the time of blade replacement, ease of manufacturing, improvement in mounting strength, processing accuracy, etc., the simplest flat portion was selected in the examples.
まず、円筒状の本体(1)の外周面(3月(軸心に対し
て垂直な面で形成された突起(4)は剛性を強くするな
ためと、製作工程を少きくするために本体(1)から削
り出さnている。突起(4)の個数はブレード(2)(
2’)・・・の個数よりも1箇多く、位置はホブのツル
巻線上に点在し、円周方向の分割ピンチはボブの切刃面
ピッチを等しくしである。又、突起(4)にはブレード
(2)が切削トルクを受けて円周方向に移動する事を防
止するためのストッパ(5〕を設け、かつプレート(2
+の軸方向位置を決め、且つ軸方向への移動をも防止す
るためキー側面(6)、およびプレート(2)の後端部
(8)と隣接するブレード(2つの切刃端部(7)とを
クランパ(9)とダブルネジα0とによって同時に本体
(1)に締付けるためのネジ穴(1υが突起(4)に穿
設しである。このときネジ穴αυとダブルネジのネジ部
α4は右ネジ、クランパ(9)のネジ穴α2とダブルネ
ジ(10)のネジ部Q4は左ネジである。First, the protrusions (4) formed on the outer circumferential surface of the cylindrical body (1) (protrusions (4) perpendicular to the axis) are used to increase rigidity and to reduce the manufacturing process. (1).The number of protrusions (4) is the same as that of the blade (2) (
2') The number of pinches is one more than the number of..., and the positions are scattered on the hob's helical winding, and the dividing pinches in the circumferential direction equalize the pitch of the cutting edge of the bob. Further, the protrusion (4) is provided with a stopper (5) for preventing the blade (2) from moving in the circumferential direction due to cutting torque, and the plate (2)
In order to determine the axial position of the + and also to prevent it from moving in the axial direction, the key side (6) and the blade (two cutting edge ends (7) adjacent to the rear end (8) of the plate (2) ) and the screw hole (1υ) is drilled in the protrusion (4) for simultaneously tightening the clamper (9) and the double screw α0 to the main body (1). At this time, the screw hole αυ and the threaded part α4 of the double screw are on the right side. The screw, the screw hole α2 of the clamper (9), and the screw portion Q4 of the double screw (10) are left-handed screws.
ブレードはチップ座(ホ)にチップ(0)が取付けらt
ており各ブレード(2) (2つ(2つ ・・・の底面
αQはブレード(2)(2つ(2“)・・が正規の位置
に取付けらねたとき本体(1)の外周面(3)に密着す
るように加工さ扛ている。The tip (0) of the blade is attached to the tip seat (E).
The bottom surface αQ of each blade (2) (two (two)... is the outer peripheral surface of the main body (1) when the blade (2) (two (2")... (3) It is processed so that it adheres closely.
捷た、突起(4)と係合する溝(A)の面(1カはブレ
ードの側面α印に千行且突起(4)のキー側面(6)に
適合するように両端通しで加工さtている。また、ブレ
ードの底面両端部には倶]面Q印に直角な平面ランドα
9)を残しであるので端面Q樽、平面ランドαりを基準
として正確なチップ座(イ)を加工することが出来る。The surface of the groove (A) which is twisted and engages with the protrusion (4) (one part is machined with a 1000 line mark on the side surface of the blade, and both ends are passed through so that it fits the key side surface (6) of the protrusion (4)). In addition, there are flat lands α perpendicular to the mark Q on the bottom surface of the blade.
9), it is possible to machine an accurate chip seat (A) based on the end face Q barrel and plane land α warp.
更に各ブレードのストッパ(5)に対する溝(A)の尚
り面(2])バストツバ側の当り面(イ)と面接触する
ように加工し、切刃端部(7)の側の溝(B)には当り
面12])が不要なためダブルネジ00が入る程度のザ
グリが施さnてい汎はよい。さらに、各突起(4)の間
ω)、ノ)・・・は削除しであるから、本体の外周面(
3)で示される本体とブレードの接触面は極めて僅かと
なる。Furthermore, the curved surface (2) of the groove (A) against the stopper (5) of each blade is machined so that it makes surface contact with the contact surface (A) on the bust rim side, and the groove (2) on the side of the cutting edge (7) is Since B) does not require the contact surface 12, it is generally counterbore enough to accommodate the double screw 00. Furthermore, since ω), ノ), etc. between each protrusion (4) are deleted, the outer peripheral surface of the main body (
The contact surface between the main body and the blade shown in 3) is extremely small.
以上のようにして加工さnた本体(1)とブレード前後
端部が互に隣接した部分をクランパ(9)とダブルネジ
00)によって締付けてゆく。この時の工具はダブルネ
ジQ0の頭部にある六角穴(15に適合する六角レンチ
だけでよい。なお、突起(4)は最初と最後のブレード
の片側に隣接するブレードが無いためブレードの数より
1箇所余分に形成しておく必要がある。The parts where the main body (1) processed as described above and the front and rear ends of the blade are adjacent to each other are tightened using a clamper (9) and a double screw 00). The only tool you need at this time is a hexagonal wrench that fits the hexagonal socket (15) on the head of the double screw Q0. Note that the protrusion (4) is larger than the number of blades because there is no adjacent blade on one side of the first and last blades. It is necessary to form one extra location.
当該実施例によnはブレード底面(1419の内円筒面
を除きグレードの各基部はすべて平面で構成さnており
、且底面(IQの両端部には平面ランドαつがあるため
、ブレードは簡単な汎用設備で正確に加工する事が出来
る。本体もネジ研]17盤があわば容易且正確に作る事
が出来るので加工の難しいネジ面を持った組立式目・転
工具でも剛性のある、互換性のよいものを安価に製作す
る事が出来る。In this example, the bottom surface of the blade (except for the inner cylindrical surface of 1419, each base of the grade is all flat), and the bottom surface (IQ has two flat lands at both ends, so the blade is simple) It can be processed accurately with general-purpose equipment.The main body is also screw-ground] 17 plates can be easily and accurately made, so even assembly type tools with threaded surfaces that are difficult to process can be made with rigidity. Products with good compatibility can be manufactured at low cost.
(発明の効果)
本発明は、上記の如くチップの切刃1単位ごとにブレー
ドを形成し、本体の外周に設けた突起にブレ−ドの溝を
係合させたので、切削力が働いたとき後端の溝の当り面
12])が突起の当り面(イ)が接触するので、円周方
向のズレが防止さ扛かつ位置決めが正しく行わnる。ま
た、テップ交換も破損しとブレードの接触面は少く、こ
のため本体の螺旋訣
面とプレートの平面との惟差が少くなるので精度のよい
組付ができるうえ、ブレードや本体の製作も特別の設備
や治具を用いずに可能であり、安価な製品を提供できる
など多くのflinだ効果を奏する。(Effects of the Invention) In the present invention, as described above, a blade is formed for each unit of the cutting edge of the chip, and the groove of the blade is engaged with the protrusion provided on the outer periphery of the main body, so that the cutting force is not applied. At this time, the abutment surface 12 of the groove at the rear end contacts the abutment surface (A) of the protrusion, so displacement in the circumferential direction is prevented and positioning is performed correctly. In addition, there is little contact surface between the blade and the blade when replacing the tip, so there is less difference between the helical surface of the main body and the flat surface of the plate, allowing for highly accurate assembly. It can be done without using other equipment or jigs, and it has many advantages such as being able to provide inexpensive products.
第1図はこの発明の実施例の本体に対するプレート基部
の配置状態を示す正面図、第2図は本体とブレードの組
立構造を示す部分的斜視図であって、(イ)はホルダの
部分斜視図、(ロ)はブレードの部分斜視図、(ハ)は
ダブルネジの部分斜視図、に)はクランパの部分斜視図
を示す。
■・・本 体 2・・・ブレード21・・・ブレ
ード 3・・・本体の外周面4・・突 起
5・・・ストッパ6・・・キー側面 7・・・切
刃端部8・・・後端部 9・・クランパ10・・
・ダブルネジ 11・・本体のネジ穴12・・・クラ
ンパのネジ穴13・・・ダブルネジのネジ部14・・・
ダブルネジのネジ部15・・・ダブルネジの六角穴16
・・・ブレードの底面17・・ブレードのキー溝側面1
8・・・ブレードの側面 19・・・ブレード底面の端
部20・・・チップ座 21・・ プレートのス
トッパ、S5面22・・・ストッパの当す面
代理人 弁理士 河 内 潤 ニ
第 2 図
手 続 補 正 書
昭和59年8月シフ日
特許庁長官 志 賀 学 殿
1、事件の表示
昭和59年特許願第125293号
2、発明の名称
回献切削工兵
3、 補 正 を す る 者事件との関係
特 許 出 願 人
名称 (51,9) 株式会社 不 二 越4、代理
人
居所 東京都港区芝公園2丁目4番1号秀和芝パー
クビル3階
株式会社 不 二 越 内
氏名 (7799) 弁理士 河 内 潤 二
5、補正命令の日イ」
自 発
6、補正の対象
明細書の発明の詳細な説明の欄
7、補正の内容
7.1 第3頁第18行目[必要である突条の細条に
」とあるのを「必要である。又、突条の細条に」と訂正
する。
7.2 第6頁第12行目の「ピンチを等しくしであ
る。」を「ピンチと等しくしである。」と訂正する。FIG. 1 is a front view showing the arrangement of the plate base with respect to the main body of the embodiment of the present invention, FIG. 2 is a partial perspective view showing the assembly structure of the main body and the blade, and (A) is a partial perspective view of the holder. In the figure, (b) shows a partial perspective view of the blade, (c) shows a partial perspective view of the double screw, and (b) shows a partial perspective view of the clamper. ■...Body 2...Blade 21...Blade 3...Outer peripheral surface of main body 4...Protrusion
5... Stopper 6... Key side 7... Cutting edge end 8... Rear end 9... Clamper 10...
・Double screw 11...Screw hole 12 on the main body...Screw hole 13 on the clamper...Threaded part 14 of the double screw...
Double screw thread part 15...double screw hexagonal hole 16
... Bottom surface of the blade 17 ... Keyway side surface of the blade 1
8...Side surface of the blade 19...End of the bottom of the blade 20...Chip seat 21...Stopper of the plate, S5 surface 22...Surface that the stopper touches Agent Patent attorney Jun Kawauchi 2nd Amendment to Figures and Procedures Date of Schiff, August 1980 Mr. Manabu Shiga, Commissioner of the Patent Office1, Indication of the incident, Patent Application No. 125293 of 1982, 2, Name of the invention, Circulation Cutting Engineer 3, Person making the amendment Relationship with the incident
Patent applicant name (51,9) Fuji Koshi Co., Ltd. 4, agent residence Hidekazu Shiba Park Building 3F, 2-4-1 Shiba Koen, Minato-ku, Tokyo Name (7799) Patent attorney Jun Kawachi 25. Date of order for amendment A. 6. Detailed explanation of the invention in the specification subject to amendment 7. Contents of amendment 7.1 Page 3, line 18 [Necessary protrusions] The phrase "in the stripes of the ridges" should be corrected to "necessary. Also, in the strips of the protrusions." 7.2 On page 6, line 12, "pinch is equal to shi desu." is corrected to "pinch is equal to shi de desu."
Claims (2)
ドを円筒形本体の外周に配置した回転切削工具において
、本体の外周円筒面に両側面が軸心に対して垂直な面を
もつ螺旋突起を削成し、該螺旋突条を分断、削除して多
数の突条を形成すると共に、ブレードをチップの切刃1
単位ごとに形成し、かつブレードの前後端部に溝を設け
、本体の前記突起とブレードの溝とを係合させ、隣接す
るブレードの前後端部間にクランパを載置し、ブレード
をねじ締め固着したことを特徴とする回転切削工具。(1) In a rotary cutting tool in which a number of blades with throw-away tips are arranged around the outer periphery of a cylindrical body, a spiral protrusion with both sides perpendicular to the axis is formed on the outer cylindrical surface of the body. The spiral protrusions are divided and deleted to form a large number of protrusions, and the blade is cut into the cutting edge 1 of the chip.
Each unit is formed, grooves are provided at the front and rear ends of the blade, the protrusions on the main body are engaged with the grooves on the blade, a clamper is placed between the front and rear ends of adjacent blades, and the blades are tightened with screws. A rotary cutting tool characterized by being fixed.
ードにかかる切削力を受けさせた特許請求の範囲第1項
記載の回転切削工具。(2) The rotary cutting tool according to claim 1, wherein a thick stopper is provided on one side of the protrusion to receive the cutting force applied to the blade.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12529384A JPS614619A (en) | 1984-06-20 | 1984-06-20 | Rotary cutting tool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12529384A JPS614619A (en) | 1984-06-20 | 1984-06-20 | Rotary cutting tool |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS614619A true JPS614619A (en) | 1986-01-10 |
JPH0372407B2 JPH0372407B2 (en) | 1991-11-18 |
Family
ID=14906494
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12529384A Granted JPS614619A (en) | 1984-06-20 | 1984-06-20 | Rotary cutting tool |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS614619A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120257935A1 (en) * | 2011-04-08 | 2012-10-11 | Sture Sjoeoe | Milling tool, and milling insert kit |
CN105397204A (en) * | 2014-09-05 | 2016-03-16 | 山特维克知识产权股份有限公司 | Cutting Insert And Milling Tool |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5220496A (en) * | 1975-08-07 | 1977-02-16 | Kobe Steel Ltd | Hob |
-
1984
- 1984-06-20 JP JP12529384A patent/JPS614619A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5220496A (en) * | 1975-08-07 | 1977-02-16 | Kobe Steel Ltd | Hob |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120257935A1 (en) * | 2011-04-08 | 2012-10-11 | Sture Sjoeoe | Milling tool, and milling insert kit |
CN102728903A (en) * | 2011-04-08 | 2012-10-17 | 山特维克知识产权股份有限公司 | Milling tool, and milling insert kit |
US8678714B2 (en) * | 2011-04-08 | 2014-03-25 | Sandvik Intellectual Property Ab | Milling tool, and milling insert kit |
CN105397204A (en) * | 2014-09-05 | 2016-03-16 | 山特维克知识产权股份有限公司 | Cutting Insert And Milling Tool |
Also Published As
Publication number | Publication date |
---|---|
JPH0372407B2 (en) | 1991-11-18 |
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