JPS60146620A - Assembly hob - Google Patents
Assembly hobInfo
- Publication number
- JPS60146620A JPS60146620A JP25073283A JP25073283A JPS60146620A JP S60146620 A JPS60146620 A JP S60146620A JP 25073283 A JP25073283 A JP 25073283A JP 25073283 A JP25073283 A JP 25073283A JP S60146620 A JPS60146620 A JP S60146620A
- Authority
- JP
- Japan
- Prior art keywords
- blade
- hob
- tooth
- view
- assembly
- 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.)
- Pending
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
Abstract
Description
【発明の詳細な説明】
［技術分野］
本発明はホブ、特に、ラック形ブレードを本体に組み付
ける型式の組付はホブに適用して効果のある技術に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a hob, and in particular, to a technique in which a type of assembly in which a rack-shaped blade is assembled to a main body is effectively applied to the hob.
［背景技術］
一般に、本体とブレードを組合せる方式のホブの種類と
しては、組立ボブ、スローアウェイボブ等がある。[Background Art] Generally, types of hobs that combine a main body and a blade include an assembly bob, a throw-away bob, and the like.
そのうち、組立ホブの例としては、たとえば実開昭５５
−４５４５８号および実開昭５５−１６′０７３２号公
報に開示されているものがある。また、スフ−アウェイ
ホブの例としては、たとえば実開昭５６−１０９８２２
号および特公昭４８−９７９９号公報に開示されている
ものがある。Among them, as an example of an assembled hob, for example,
-45458 and Japanese Utility Model Application Publication No. 55-16'0732. In addition, as an example of a fast-away hob, for example,
and Japanese Patent Publication No. 48-9799.
ところが、前記従来技術では、ブレードを取り付けるた
めのホブ本体は・、ブレードに合わせた溝数、溝形状に
製作しなければならないので、溝の構造が複雑で加工に
時間がかかり、高精度が得に（い、という問題がある。However, in the above-mentioned conventional technology, the hob body to which the blade is attached must be manufactured with the number of grooves and the groove shape to match the blade, so the groove structure is complex and machining takes time, making it difficult to achieve high accuracy. There is a problem.
また、前者（組立ホブ）の場合には、ブレードの外周二
番面は曲線加工されるので、そのための専用加工機が必
要になる、という問題もある。In addition, in the case of the former (assembly hob), since the second outer peripheral surface of the blade is processed into a curve, there is also the problem that a dedicated processing machine is required for this purpose.
さらに、後者（スローアウェイホブ）の場合には、ブレ
ードを直線加工しようとすれば切刃の数が多くなり、加
工ならびに組立精度の調整に時間がかかる上に、コスト
も高くつく、という問題がある。Furthermore, in the case of the latter (indexable hob), if you try to machine the blade in a straight line, the number of cutting edges will increase, making it time consuming to adjust the machining and assembly accuracy, and the cost will be high. be.
また、従来の鋸刃状歯形用のホブはソリッド形の一体構
造であり、専用加工機が必要であり、しかも材料が無駄
になり、コストが高くつく他、研削歯形や尖り歯が得に
くい等の問題点がある。In addition, conventional hobs for serrated teeth have a solid integral structure, which requires a special processing machine, wastes material, increases costs, and makes it difficult to obtain ground or pointed teeth. There is a problem with this.
［発明の目的］
本発明の１つの目的は、加工が容易で、高い精度を得る
ことのできる組付はボブを提供することにある。[Object of the Invention] One object of the present invention is to provide a bob that is easy to process and can be assembled with high accuracy.
本発明の他の１つの目的は、尖り歯を得ることができ、
被削製品の品質を向上させることのできる組付はホブを
提供することにある。Another object of the present invention is to obtain pointed teeth,
An assembly that can improve the quality of the workpiece consists in providing a hob.
［発明の構成］
本発明は、ホブ本体を円筒形とし、ブレードをホブ本体
の円筒部に組み付けるようにしたものである。[Structure of the Invention] According to the present invention, the hob main body is cylindrical, and the blade is assembled to the cylindrical portion of the hob main body.
また、本発明は、ブレードの二番面を直線とし、歯形を
ワイヤカットで仕上げるものである。Further, in the present invention, the second surface of the blade is made straight, and the tooth profile is finished by wire cutting.
［実施例１］
第１図〜第７図は本発明の組付はボブの一実施例を示す
もので、第１図はその半断面図で示す正面図、第２図は
その側面図、第３図はそのホブ本体の断面図、第４図は
その側面図、第５図（ａｌと（ｂｌはブレードの平面図
と正面図、第６図はブレードの側面図、第７図は歯形の
一実施例の拡大部分断面図である。[Embodiment 1] Figs. 1 to 7 show an embodiment of the assembly of the bob according to the present invention, Fig. 1 is a front view showing a half sectional view thereof, Fig. 2 is a side view thereof, Fig. 3 is a sectional view of the hob body, Fig. 4 is a side view thereof, Fig. 5 (al and (bl are plan and front views of the blade, Fig. 6 is a side view of the blade, and Fig. 7 is a tooth profile). FIG. 2 is an enlarged partial cross-sectional view of one embodiment.
本実施例１の組付はホブは、円筒形断面の本体１と、該
本体１の外周にボルト３で着脱自在に組み付けられたブ
レード２とよりなる。本体１の軸方向両端の外周には鍔
部４が一体に円周方向に突設され、両鍔部４間にはブレ
ード組付は用の円筒部５が形成されている。また、本体
１の軸方向の４ケ所における円周方向には、該本体１に
ブレード２を固定するためのねじ穴６が設けられている
。The hob according to the first embodiment includes a main body 1 having a cylindrical cross section, and a blade 2 detachably attached to the outer periphery of the main body 1 with bolts 3. Flange portions 4 are integrally provided on the outer periphery of both axial ends of the main body 1 and protrude in the circumferential direction, and a cylindrical portion 5 for assembling the blade is formed between both the collar portions 4. Furthermore, screw holes 6 for fixing the blade 2 to the main body 1 are provided in the circumferential direction at four locations in the axial direction of the main body 1.
一方、ブレード２はその本体１への組付面が円弧面７（
第６図）として形成されると共に、ブレード２の組付は
用ボルト３のための取付穴８を有している。また、ブレ
ード２の二番面９は直線で形成されている。ブレード２
の歯形１ｏは第７図に示すように、直線部１０Ａ、曲線
部１０Ｂ、尖り歯となる歯形部分であるアンダカット部
１０Ｃを有し、ワイヤカット方式で製作されている。こ
の歯形１０は被削鋸刃状の尖り歯を容易にかつ精度良く
得ることができる。さらに、ブレード２の内側部の端面
１１は本体１への組付は時に鍔部４の間に嵌合して歯形
１０の軸方向位置を規制するため所定量だけ段差状に切
り込まれた構造となっている。On the other hand, the blade 2 has an arcuate surface 7 (
6), and the assembly of the blade 2 has a mounting hole 8 for a bolt 3. Further, the second surface 9 of the blade 2 is formed in a straight line. blade 2
As shown in FIG. 7, the tooth profile 1o has a straight part 10A, a curved part 10B, and an undercut part 10C which is a tooth profile part that becomes a sharp tooth, and is manufactured by a wire cutting method. With this tooth profile 10, sharp teeth like a saw blade can be easily and precisely obtained. Furthermore, the inner end surface 11 of the blade 2 has a structure in which a predetermined amount of steps are cut in order to fit between the flange 4 and regulate the axial position of the tooth profile 10 when the blade 2 is assembled to the main body 1. It becomes.
本実施例の組付はホブを製造する場合、本体１は刃溝分
割しないで円筒状に仕上げられ、ブレード２の所要数だ
けボルト六６を形成することにより製造されるので、は
とんど円筒加工だけで足り、その加工が容易で、精度が
向上する。When manufacturing a hob, the assembly of this embodiment is easy because the main body 1 is finished into a cylindrical shape without dividing the blade groove, and the required number of bolts 66 for the blades 2 are formed. Cylindrical machining is all that is required, making the machining easy and improving accuracy.
一方、ブレード２は二番面９が直線（平面）であるので
、平面加工で足り、加工が容易である。On the other hand, since the second surface 9 of the blade 2 is a straight line (flat surface), flat surface processing is sufficient and processing is easy.
また、ブレード２の二番面９が直線（平面）であること
により、歯形１ｏはワイヤカット方式で仕上げることが
でき、尖り歯となる歯形部分をアンダカット部１０ｃ状
に形成することにより、被削鋸刃状の尖り歯を容易に仕
上げることができ、被削製品の質を向上させることがで
きる。In addition, since the second surface 9 of the blade 2 is a straight line (flat), the tooth profile 1o can be finished using a wire cutting method, and by forming the tooth profile portion that becomes a sharp tooth into an undercut portion 10c, Sharp teeth like a saw blade can be easily finished, and the quality of the cut product can be improved.
さらに、本実施例はホブの本体１とブレード２を別々に
製作した後に組み付けることができ、製造が容易である
。Furthermore, in this embodiment, the main body 1 and the blade 2 of the hob can be manufactured separately and then assembled, so that manufacturing is easy.
［実施例２］
第８図〜第１３図は本発明の組付はホブの実施例２を示
すもので、第８図はその半断面図で示す正面図、第９図
はその側面図、第１０図はボブ本体の断面図、第１１図
はブレードの側面図、第１２図（ａ八（ｂ）、（Ｃ）は
ブレードの平面図と各分割部の正面図、第１３図は歯形
の一部の拡大部分断面図である。[Embodiment 2] FIGS. 8 to 13 show a second embodiment of the hob according to the present invention, in which FIG. 8 is a front view shown in a half sectional view, FIG. Fig. 10 is a sectional view of the bob body, Fig. 11 is a side view of the blade, Fig. 12 (a, 8, b, and c) is a plan view of the blade and a front view of each divided part, and Fig. 13 is the tooth profile. FIG.
本実施例２では、ブレード２が軸方向に３個に分割され
、かつその本体１への組付は位置を円周方向にずらしで
ある。そのため、本体１の鍔部４は３個の分割ブレード
ＡＩ 、Ａ２ 、Ａ３またはＢ１、Ｂ２、Ｂ３を各々軸
方向に位置規制するように両端とその間の２ケ所の合計
４ケ所に等間隔で設けられている。In the second embodiment, the blade 2 is divided into three pieces in the axial direction, and the blades 2 are assembled into the main body 1 by shifting their positions in the circumferential direction. Therefore, the flange 4 of the main body 1 is provided at equal intervals at a total of four locations, one at each end and two locations between, so as to regulate the position of the three divided blades AI, A2, A3 or B1, B2, B3 in the axial direction. It is being
また、本実施例２の歯形１０は第１３図の如（、第７図
の場合のように直線部！ＯＡ、曲線部１０Ｂ１アンダ力
ソト部１０Ｃを有するが、その配列は１歯とびになって
いる点で実施例１とは異なる。In addition, the tooth profile 10 of this embodiment 2 has a straight part !OA, a curved part 10B1, and an underforce-swinging part 10C as shown in FIG. 13 (as in the case of FIG. This example differs from Example 1 in that
すなわち、本実施例２の歯形ｌＯは第１２図（ｂ）、（
Ｃ）の如く、互いに食い違い状に各山間に配列されてい
る。That is, the tooth profile lO of Example 2 is as shown in FIG. 12(b), (
As shown in C), they are arranged between each mountain in a staggered manner.
本実施例２のホブの製造法は分割ブレード方式以外は実
施例１の場合と実質的に同じである。The method of manufacturing the hob of Example 2 is substantially the same as that of Example 1 except for the split blade method.
本実施例２では、ブレード２が軸方向に３個に分割され
、かつ円周方向にずらして組み付けられるので、各ブレ
ード２に対する切削抵抗が軽減され振動が小さくなり、
ホブ切刃の摩耗が減少し、寿命の維持および切削音の減
少が可能である。In the second embodiment, the blade 2 is divided into three parts in the axial direction and assembled in a manner shifted in the circumferential direction, so that cutting resistance to each blade 2 is reduced and vibration is reduced.
Wear on the hob cutting edge is reduced, allowing for longer service life and reduced cutting noise.
なお、本発明は前記実施例に限定されるものではなく、
他の様々な変形が可能である。Note that the present invention is not limited to the above embodiments,
Various other variations are possible.
たとえば、歯形の形状、ブレードの分割個数等は前記実
施例以外のものにすることができる。For example, the shape of the tooth profile, the number of blade divisions, etc. can be changed from those of the above embodiments.
［効果］
（ｌ）０円筒形の本体の円周方向に２個以上の鍔部を設
け、前記鍔部の間にブレードを組み付けてなることによ
り、本体の加工が容易で、ブレードの仕上げ加工も容易
かつ高精度であり、組付けや精度調整が容易となり、し
かもコストを低減できる。[Effects] (l) By providing two or more flanges in the circumferential direction of the cylindrical body and assembling the blade between the flanges, the body can be easily machined, and the blade can be easily finished. It is also easy and highly accurate, making assembly and precision adjustment easy, and furthermore, costs can be reduced.
（２）０円筒形の本体の円周方向に２個以上の鍔部を設
け、前記鍔部の間にブレードを組み付け、前記ブレード
の二番面を直線とし、歯形をワイヤカットで仕上げたこ
とにより、尖り歯を容易に得ることができ、被削製品の
品質を向上させることかできる。(2) Two or more flanges are provided in the circumferential direction of a cylindrical main body, a blade is assembled between the flanges, the second surface of the blade is a straight line, and the tooth profile is finished by wire cutting. This makes it possible to easily obtain sharp teeth and improve the quality of the workpiece.
（３）、さらに、ブレードを軸方向に２個以上に分割
ｒして、円周方向にずらして組付けることにより、切削
抵抗が軽減されホブ切刃の摩耗が減少し、寿命が延びる
と共に、切削音を減少することができる。(3) Furthermore, the blade is divided into two or more pieces in the axial direction.
By shifting them in the circumferential direction and assembling them, the cutting resistance is reduced, the wear of the hob cutting edge is reduced, the life of the hob is extended, and cutting noise can be reduced.
第１図〜第７図は本発明の組付はホブの一実施例を示す
もので、第１図はその半断面図で示す正面図、第２図は
その側面図、第３図はそのホブ本体の断面図、第４図は
その側面図、第５図（ａ）と（ｂｌはブレードの平面図
と正面図、第６図はブレードの側面図、第７図は歯形の
一実施例の拡大部分断面図、第８図〜第１３図は本発明
の組付はホブの実施例２を示すもので、第８図はそψ半
断面図で示す正面図、第９図はその側面図、第１０図は
ホブ本体の断面図、第１１図はブレードの側面図、第１
２図（ａ）、（ｂｌ、ｆｃ）はブレードの平面図と各分
割部の正面図、第１３図は歯形の一部の拡大部分断面図
である。
１・・・本体、２・・・ブレード、３・・・ボルト、４
・・・鍔部、５・・・円筒部、６・・・ねじ穴、７・・
・円弧部、８・・・取付穴、９・・・二番面、１０・・
・歯形、ＩＯＣ・・・アンダカット部、１１・・・端面
。
特許出願人 株式会社 小金井製作所
代理人 弁理士 筒 井 大 和
第２図
第４図
′ｌＡ５図
第６図
第７図
第１０図
第１１図
第１２図
第１３図Figures 1 to 7 show an embodiment of the assembled hob according to the present invention. Figure 1 is a front view showing a half sectional view of the hob, Figure 2 is a side view thereof, and Figure 3 is its side view. A cross-sectional view of the hob body, FIG. 4 is a side view thereof, FIGS. 5(a) and BL are a plan view and a front view of the blade, FIG. 6 is a side view of the blade, and FIG. FIGS. 8 to 13 show a second embodiment of the assembled hob according to the present invention, FIG. 8 is a front view shown in half sectional view, and FIG. 9 is a side view thereof. Figure 10 is a sectional view of the hob body, Figure 11 is a side view of the blade,
2(a) and (bl, fc) are a plan view of the blade and a front view of each divided portion, and FIG. 13 is an enlarged partial sectional view of a part of the tooth profile. 1...Body, 2...Blade, 3...Bolt, 4
...Flame part, 5...Cylindrical part, 6...Threaded hole, 7...
・Arc part, 8...Mounting hole, 9...Second side, 10...
・Tooth profile, IOC... undercut part, 11... end face. Patent Applicant Koganei Seisakusho Co., Ltd. Representative Patent Attorney Daiwa Tsutsui Figure 2 Figure 4 'lA5 Figure 6 Figure 7 Figure 10 Figure 11 Figure 12 Figure 13
Claims (5)
け、前記鍔部の間にブレードを組み付けてなることを特
徴とする組付はホブ。(1) A hob characterized in that two or more flanges are provided in the circumferential direction of a cylindrical main body, and a blade is assembled between the flanges.
前記本体の円周方向にずらして組み付けられていること
を特徴とする特許請求の範囲第１項記載の組付はホブ。(2), the blade is divided into two or more in the axial direction,
The assembly hob according to claim 1, wherein the hob is assembled so as to be shifted in the circumferential direction of the main body.
け、前記鍔部の間にブレードを組み付け、前記ブレード
の二番面を直線とし、歯形をワイヤカットで仕上げたこ
とを特徴とする組付はホブ。(3) Two or more flanges are provided in the circumferential direction of a cylindrical main body, a blade is assembled between the flanges, the second surface of the blade is a straight line, and the tooth profile is finished by wire cutting. The featured assembly is the hob.
前記本体の円周方向にずらして組み付けられていること
を特徴とする特許請求の範囲第３項記載の組付はホブ。(4), the blade is divided into two or more pieces in the axial direction,
The assembly hob according to claim 3, wherein the assembly hob is assembled so as to be shifted in the circumferential direction of the main body.
底を加工するアンダカット部を有することを特徴とする
特許請求の範囲第３項記載の組付はホブ。(5) The assembly hob according to claim 3, wherein the tooth profile of the blade has an undercut portion for processing a sharp tooth bottom by wire cutting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25073283A JPS60146620A (en) | 1983-12-30 | 1983-12-30 | Assembly hob |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25073283A JPS60146620A (en) | 1983-12-30 | 1983-12-30 | Assembly hob |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60146620A true JPS60146620A (en) | 1985-08-02 |
Family
ID=17212211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25073283A Pending JPS60146620A (en) | 1983-12-30 | 1983-12-30 | Assembly hob |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60146620A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019052850A1 (en) * | 2017-09-14 | 2019-03-21 | Gühring KG | Roughing tool and method for the production thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5225390B1 (en) * | 1971-04-15 | 1977-07-07 | ||
| JPS57102722A (en) * | 1980-10-16 | 1982-06-25 | Fette Wilhelm Gmbh | Cylindrical edge tool with edge plate |
-
1983
- 1983-12-30 JP JP25073283A patent/JPS60146620A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5225390B1 (en) * | 1971-04-15 | 1977-07-07 | ||
| JPS57102722A (en) * | 1980-10-16 | 1982-06-25 | Fette Wilhelm Gmbh | Cylindrical edge tool with edge plate |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019052850A1 (en) * | 2017-09-14 | 2019-03-21 | Gühring KG | Roughing tool and method for the production thereof |
| US11491558B2 (en) | 2017-09-14 | 2022-11-08 | Guehring Kg | Roughing tool and method for its manufacture |
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