JPS63127815A - Assembled hob - Google Patents
Assembled hobInfo
- Publication number
- JPS63127815A JPS63127815A JP27186986A JP27186986A JPS63127815A JP S63127815 A JPS63127815 A JP S63127815A JP 27186986 A JP27186986 A JP 27186986A JP 27186986 A JP27186986 A JP 27186986A JP S63127815 A JPS63127815 A JP S63127815A
- Authority
- JP
- Japan
- Prior art keywords
- blade
- tooth
- assembly
- accuracy
- cylindrical
- 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
- 238000005520 cutting process Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000003754 machining Methods 0.000 description 10
- 238000010791 quenching Methods 0.000 description 5
- 230000000171 quenching effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
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〉 本発明は歯車創成に用いられる組立ホブに関する。[Detailed description of the invention] <Industrial application field> The present invention relates to an assembly hob used for gear generation.
〈従来の技術〉
第３図に従来の組立ホブを示す。ねじ状切刃を有するブ
レード２１は、外周に平行溝を有する本体２２に各々係
合しており、ブレード２１両端の肩部はフランジ２３の
内側鍔部に嵌合している。フランジ２３はボルト２４で
本体２２に締付けられ、またブレード２１と本体２２と
に亘るＶ状溝にはピン２５が圧入されている。<Prior art> Fig. 3 shows a conventional assembled hob. Blades 21 having threaded cutting edges are each engaged with a main body 22 having parallel grooves on the outer periphery, and shoulders at both ends of the blades 21 are fitted into inner flanges of flanges 23. The flange 23 is fastened to the main body 22 with bolts 24, and a pin 25 is press-fitted into a V-shaped groove extending between the blade 21 and the main body 22.
組立ホブは棒状のブレード２１を第４図に示す加工治具
２６に組込んで同時に歯形加工（焼入前のねじ切り及び
焼入後のねじ研削）し、製品としては、第５図に示す本
体２２に組込む。この時ブレード２１を、切刃としての
逃げ２８を与えるため、加工時（第４図参照）に対して
オフセット２７して組立てる。For the assembled hob, a rod-shaped blade 21 is assembled into a processing jig 26 shown in Fig. 4, and the tooth profile is processed at the same time (thread cutting before quenching and thread grinding after quenching), and the product is the main body shown in Fig. 5. 22. At this time, the blade 21 is assembled at an offset 27 with respect to the machining process (see FIG. 4) in order to provide a relief 28 as a cutting edge.
〈発明が解決しようとする問題点〉 従来の組立ホブには次の問題点がある。<Problem that the invention seeks to solve> Conventional assembly hobs have the following problems.
（１） ブレード２１を四角断面の棒状片より各個に
第４図に示すＬ型断面に加工する必要がある。(1) It is necessary to process each blade 21 from a rod-shaped piece with a square cross section into an L-shaped cross section as shown in FIG.
（２） ブレード２１の歯形加工（ねじ切り及びねじ
研削）時加工治具２６に組込む必要があるが、加工治具
２６は焼入前加工と焼入後加工と夫々専用に二種必要で
ある。また、加工のために加工治具２６の組立て及び分
解作業が必要となる。(2) When machining the tooth profile of the blade 21 (thread cutting and thread grinding), it is necessary to incorporate it into a machining jig 26, but two types of machining jig 26 are required, one for pre-quenching machining and one for post-quenching machining. Moreover, assembly and disassembly work of the processing jig 26 is required for processing.
（３） ブレード２１の本体２２への組込用の嵌合部
平行面（三面）の加工が、ブレード２１及び本体２２に
各々必要となる。(3) Machining of parallel surfaces (three surfaces) of the fitting portion for assembling the blade 21 into the main body 22 is required for the blade 21 and the main body 22, respectively.
本発明は上記問題に鑑みてなされたもので、組立工数が
低減して組立精度が向上し、更に歯形加工の加工治具の
製作及び管理が不要となる組立ホブを提供することを目
的とする。The present invention has been made in view of the above problems, and aims to provide an assembly hob that reduces assembly man-hours, improves assembly accuracy, and eliminates the need to manufacture and manage a processing jig for tooth profile processing. .
く問題点を解決するための手段〉
上記目的を達成するための本発明の構成は、中心軸に直
交する断面が鋸歯状で中心軸方向に延びる溝を外周に多
数有する円筒状工具本体の該溝に、外周部にホブ歯形断
面のねじ切りを行なった円筒形歯部を中心軸方向に沿っ
て円周方向で多数個に分割したブレード片を取付けてな
ることを特徴とする。Means for Solving the Problems> The present invention has a structure in which a cylindrical tool body has a serrated cross section perpendicular to the central axis and has a large number of grooves extending in the central axis direction on the outer periphery. It is characterized in that a blade piece is attached to the groove, the cylindrical tooth part having a hob-shaped cross section threaded on the outer periphery divided into a large number of pieces in the circumferential direction along the central axis direction.
く作 用〉
ねじ切り及びねじ研削後の円筒形歯部からブレード片を
分割し、分割したブレード片を円筒状工具本体の溝に取
付ける。Function: Separate blade pieces from the cylindrical tooth after thread cutting and thread grinding, and attach the divided blade pieces to the grooves of the cylindrical tool body.
く実 施 例〉
第１図には本発明の一実施例に係る組立ホブを示し、第
２図にはそのブレード片を構成する円筒形歯部を示しで
ある。Embodiment FIG. 1 shows an assembled hob according to an embodiment of the present invention, and FIG. 2 shows a cylindrical tooth portion constituting a blade piece thereof.
ねじ状切刃を有するブレード片としてのブレード１は、
中心軸に直交する断面が鋸歯状で中心軸方向に延びる溝
７を外周に多数有する円筒状工具本体としての本体２の
溝７に各々係合している。ブレード１両端の肩部１ａは
フランジ３の内側鍔部に嵌合し、フランジ３はボルト４
で本体２に締付けられている。The blade 1 as a blade piece with a threaded cutting edge is
The cross-sections perpendicular to the central axis are serrated and each engages with the grooves 7 of the main body 2, which is a cylindrical tool body having a large number of grooves 7 extending in the direction of the central axis on the outer periphery. The shoulders 1a at both ends of the blade 1 fit into the inner flange of the flange 3, and the flange 3 is connected to the bolt 4.
It is tightened to the main body 2.
また、ブレード１のＶ状溝にはピン５が圧入されている
。ブレード１は、外周部にホブ歯形断面のねじ切りを行
なった円筒形歯部１１を中心軸方向に沿って円周方向で
多数個に分割したものである。Further, a pin 5 is press-fitted into the V-shaped groove of the blade 1. The blade 1 has a cylindrical tooth portion 11 whose outer circumferential portion is threaded with a hob tooth-shaped cross section, and is divided into a large number of pieces in the circumferential direction along the central axis direction.
上記構成の組立ホブの組立て工程を説明する。The assembly process of the assembly hob having the above configuration will be explained.
（１） 円筒形歯部１１にホブ歯形断面のねじ切りを
行ない歯形１３とする。(1) The cylindrical tooth portion 11 is threaded to have a hob tooth profile cross section to form the tooth profile 13.
（２）切刃溝１４の分割加工を行なう（第２図例では十
七分割）。(2) Dividing the cutting groove 14 (17 divisions in the example shown in FIG. 2).
（３）焼入焼戻し熱処理後円筒形歯部１１の内径１５及
び両端面１６の研削。(3) Grinding the inner diameter 15 and both end surfaces 16 of the cylindrical tooth portion 11 after the quenching and tempering heat treatment.
（４）切刃すくい面１４の研削後、円筒形歯部１１の内
径１５及び両端面１６を基準に歯形１３の研削（ねじ研
削）を行なう。(4) After grinding the rake face 14 of the cutting blade, the tooth profile 13 is ground (thread grinding) based on the inner diameter 15 and both end surfaces 16 of the cylindrical tooth portion 11.
（５） 円筒形歯部１１の内径１５及び刃付面を基準
に円筒形歯部１１を切断しく第２図（ａｌ中点線１２）
ブレード１とする。(5) Cutting the cylindrical tooth portion 11 based on the inner diameter 15 and the cutting surface of the cylindrical tooth portion 11 (al middle dotted line 12)
Let's call it Blade 1.
（６） ブレード１の切断面にピン圧入用のＶ溝を研
削加工する。(6) Grind a V-groove for pin press-fitting on the cut surface of the blade 1.
（７）本体２の溝７にブレード１を取付け、ピン５を圧
入後ブレード１の肩部１ａにフランジ３を嵌合してボル
ト４で締付ける。(7) Attach the blade 1 to the groove 7 of the main body 2, press fit the pin 5, fit the flange 3 to the shoulder 1a of the blade 1, and tighten with the bolt 4.
上記工程で歯形加工（ねじ切り及びねじ研削）は一体加
工であるため、被加工物の剛性が高く高生産性と高精度
を確保できる。また（１）から（５）のブレード１の切
断までは一体加工で行なうので、工程間の物流も単純と
なり、加工治具の製作管理、ブレード１の組立て分解作
業が不要となり工程数も大幅に削減できる。また、フラ
ンジ３はブレード１の軸方向の位置決めと本体２への締
付は機能を有し、ピン５はブレード１相互の位置ずれを
防止している。In the above process, the tooth profile processing (thread cutting and thread grinding) is an integrated process, so the rigidity of the workpiece is high, and high productivity and high precision can be ensured. In addition, since the cutting of blade 1 from (1) to (5) is performed in one piece, the logistics between processes is simplified, and there is no need to manage the production of processing jigs or assemble and disassemble blade 1, which greatly reduces the number of processes. It can be reduced. Further, the flange 3 has the function of axially positioning the blade 1 and tightening it to the main body 2, and the pin 5 prevents the blades 1 from being displaced from each other.
〈発明の効果〉
本発明の組立ホブは、円筒形歯部に歯形形成を行ない、
この円筒形歯部を分割してブレードとし、本体外周に鋸
歯状に形成された溝にブレードを取付けたので、組立工
数が低減して組立精度が向上し、更に歯形加工の加工治
具が不要になり加工治具の製作管理が不要となる。その
結果、組立ホブの作成コスト低減と加工精度向上が図れ
る。<Effects of the Invention> The assembly hob of the present invention forms a tooth profile on the cylindrical tooth part,
This cylindrical tooth part is divided into blades, and the blades are attached to grooves formed in a sawtooth shape on the outer periphery of the main body, reducing assembly man-hours and improving assembly accuracy, and also eliminates the need for a machining jig for tooth profile machining. This eliminates the need for manufacturing management of processing jigs. As a result, the manufacturing cost of the assembled hob can be reduced and the machining accuracy can be improved.
第１図（ａ） （ｂ）は本発明の一実施例に係る組立ホ
ブの一部破断正面図及び一部破断側面図、第２図（ａｌ
（ｂｌはその円筒形歯部の正面図及び断面側面図、第
３図（ａ） （ｂｌは従来の組立ホブの一部破断正面図
及び一部破断側面図、第４図はブレードを歯形加工治具
に組立てた状態の正面図、第５図は歯形加工後のブレー
ドを本体に組立てた状態の正面図である。
図 面 中、
１はブレード１
２は本体、
７は溝、
１１は円筒形歯部である。
特 許 出 願 人
三菱重工業株式会社
復 代 理 人1(a) and 1(b) are a partially cutaway front view and a partially cutaway side view of an assembled hob according to an embodiment of the present invention, and FIG.
(bl is a front view and a cross-sectional side view of the cylindrical tooth part, FIG. 3(a)) (bl is a partially cutaway front view and partially broken side view of a conventional assembled hob, and FIG. 4 is a tooth profile processing of the blade) Fig. 5 is a front view of the blade assembled to the jig, and Fig. 5 is a front view of the blade after tooth profile processing assembled to the main body.In the drawings, 1 is the blade 1, 2 is the main body, 7 is the groove, and 11 is the cylinder. It is a shaped tooth part. Patent applicant Mitsubishi Heavy Industries, Ltd. Sub-agent
Claims (1)
を外周に多数有する円筒状工具本体の該溝に、外周部に
ホブ歯形断面のねじ切りを行なった円筒形歯部を中心軸
方向に沿って円周方向で多数個に分割したブレード片を
取付けてなることを特徴とする組立ホブ。The cylindrical tool body has a number of grooves on the outer periphery that have a sawtooth cross section perpendicular to the center axis and extend in the direction of the center axis, and a cylindrical tooth portion with a hob-shaped cross section is threaded on the outer periphery in the direction of the center axis. An assembled hob characterized by having blade pieces that are divided into a large number of pieces circumferentially attached along the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27186986A JPS63127815A (en) | 1986-11-17 | 1986-11-17 | Assembled hob |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27186986A JPS63127815A (en) | 1986-11-17 | 1986-11-17 | Assembled hob |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63127815A true JPS63127815A (en) | 1988-05-31 |
Family
ID=17506030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27186986A Pending JPS63127815A (en) | 1986-11-17 | 1986-11-17 | Assembled hob |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63127815A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3147061A1 (en) * | 2015-06-11 | 2017-03-29 | Johne + Co. Präzisionswerkzeuge GmbH | Hob teeth holder, hob tool, kit for assembling a hob tool and method for retrofitting and/or maintaining a hob tool |
-
1986
- 1986-11-17 JP JP27186986A patent/JPS63127815A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3147061A1 (en) * | 2015-06-11 | 2017-03-29 | Johne + Co. Präzisionswerkzeuge GmbH | Hob teeth holder, hob tool, kit for assembling a hob tool and method for retrofitting and/or maintaining a hob tool |
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