JPS60152340A - Reverse gear for automobile and its manufacture - Google Patents
Reverse gear for automobile and its manufactureInfo
- Publication number
- JPS60152340A JPS60152340A JP792884A JP792884A JPS60152340A JP S60152340 A JPS60152340 A JP S60152340A JP 792884 A JP792884 A JP 792884A JP 792884 A JP792884 A JP 792884A JP S60152340 A JPS60152340 A JP S60152340A
- Authority
- JP
- Japan
- Prior art keywords
- tooth profile
- cold forging
- reverse
- tooth form
- automobile
- 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
- 238000004519 manufacturing process Methods 0.000 title description 5
- 238000010273 cold forging Methods 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 10
- 238000003754 machining Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 102100025490 Slit homolog 1 protein Human genes 0.000 description 1
- 101710123186 Slit homolog 1 protein Proteins 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Gears, Cams (AREA)
- Forging (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、ヂャンファ一部およびギヤー扱り防止用の逆
テーパ一部を有する自動車用リバースギヤーおよびその
製造法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automobile reverse gear having a bumper portion and a reverse tapered portion for preventing gear handling, and a method for manufacturing the same.
従来、自動車用リバースギヤーは熱間または冷間鍛造材
よりの機械加工で歯形切前形状に加工し、歯切盤で歯形
部加工をした後、チャンファ−リングマシーン等でチャ
ンファ一部を加工の上、さらにシェービングカッターま
ｌ〔は転造等で歯形部に逆テーパーを付けて製造してい
る。Traditionally, automobile reverse gears are machined from hot or cold forged material into a shape before cutting the tooth profile, and after machining the tooth profile using a gear cutter, a part of the chamfer is machined using a chamfering machine, etc. Furthermore, the shaving cutter [M] is manufactured by adding a reverse taper to the tooth profile by rolling, etc.
かかる従来技術の問題点としては、歯車部品に共通して
いるが、歯形部の加工を刃物で行なうため、歩留りが低
いばかりでなく、各種の工程を必要とするので、それに
応じた多品種、多量の機械の設置を必要とし、かつそれ
らを収容するための建屋さらにはこれらの機械のメンテ
ナンスなど多額の投資と運転費用を要りることが挙げら
れる。さらに、製造タクトについても、各種機械を使用
覆る７ｊめ、３０〜６０秒程度となっており、生産性に
ついても問題がある。The problems with this conventional technology are common to gear parts, but since the tooth profile is processed with a cutter, not only is the yield low, but also various processes are required, so a wide variety of products and products are required. It requires the installation of a large number of machines, and requires a large amount of investment and operating costs such as buildings to house them and maintenance of these machines. Furthermore, the manufacturing tact time is about 30 to 60 seconds, which involves using various machines, and there is also a problem with productivity.
本発明は、上記問題点を解決した精度の高い自りＪ車用
リバースギヤーを提供するもので、歯形部加工の歩留り
向上、プレス作業のタクトの短縮、設備や建屋面積の減
少などを目的とづるものである。The present invention provides a highly accurate reverse gear for J-cars that solves the above-mentioned problems, and aims to improve the yield of tooth profile processing, shorten the tact time of press work, and reduce the area of equipment and buildings. It is something that can be written.
本発明は、まず素材を冷間Ｉｉｉ造りることによっＣ形
成された歯形部とボス部を右し、該歯形部にはヂｔ・ン
ファ一部およびストレー１〜部を備え、さらに上記スト
レート部には冷間鍛造による逆テーパーを形成しでなる
ことを特徴とり−る自動車用リバースギＶ−である。In the present invention, first, a tooth profile part and a boss part are formed by cold-forming a raw material, and the tooth profile part is provided with a part of the groove and a straight part, and furthermore, the above-mentioned straight This is a reverse gear V- for an automobile, which is characterized by having a reverse taper formed by cold forging in the part.
第１図は本発明リバースギψ−の実施例の−８１１の斜
視図を承りもので、歯形部１の端部にはブヤンファ一部
２を形成しくある。この歯形部１おにひヂＶンファ一部
２は冷間鍛造により形成したもの（・、歯形部１のスト
レート部には、これも冷間鍛造による逆テーパ一部３を
形成しである。ぞしく、内径部４は偏心づることなく精
密にイ４上げられたものである。FIG. 1 is a perspective view of -811 of an embodiment of the reverse gear ψ- of the present invention, in which a bumper part 2 is formed at the end of the toothed part 1. This tooth profile part 1 and the curved part 2 are formed by cold forging (the straight part of the tooth profile part 1 is also formed with a reverse tapered part 3 by cold forging). Preferably, the inner diameter portion 4 is precisely raised without eccentricity.
逆テーパ一部３は、第２図に概念図で示したように、互
に噛合づるギヤーの歯形部１．１−にそれぞれ形成し、
一方の歯形部１′の先端が（Ｉ方の歯形部１．１間のや
や狭いところから１医入し、扱けにくくなるようにした
ものである。As shown in the conceptual diagram in FIG. 2, the reverse tapered portions 3 are formed in the tooth profile portions 1.1- of the gears that mesh with each other, respectively.
The tip of one tooth profile 1' is inserted from a slightly narrow place between the tooth profile parts 1.1 on the I side, making it difficult to handle.
逆テーパ一部３は一方の歯形部１に設りるのみで、他方
の歯形部１′はス１へレート部のままでも抜は防止には
役立つ。Even if the reverse taper portion 3 is provided only on one tooth profile 1, and the other tooth profile 1' remains as a straight part to the slit 1, it is useful for preventing pullout.
かかるギヤーは冷間鍛造でつくっであるｌこめ、精度の
高いものを容易に得ることかできる。Since such gears are made by cold forging, high precision can be easily obtained.
本発明は、また、素材を冷間鍛造してチャンファ一部お
よびストレート部を有りる歯形部およびボス部を成形し
、該ストレート部にも冷間鍛造によって逆テーパー加工
を行ない、ついで、このように加工された素材を歯形部
にお（］る逆テーパ一部に３点以上にて掴持し内径を加
工づることを特徴とする自動車用リバースギヤーの製造
法である。The present invention also includes cold forging a material to form a tooth profile portion and a boss portion having a chamfer portion and a straight portion, performing reverse taper processing on the straight portion by cold forging, and then performing such a process. This method of manufacturing a reverse gear for an automobile is characterized by gripping a reverse taper part of a toothed part at three or more points and processing the inner diameter of the processed material.
これを図面に基づいて説明覆ると、第３図に示づ歯形部
ＨＡ Ｍを第４図（イ）に示すように成形型６に挿入し
、冷間鍛造により歯形部１並びにボス部を押出成形づる
。そのとき同時に第４図（ロ）に示１ようにチャンファ
一部２も成形する。To explain this based on the drawings, the tooth profile HAM shown in Figure 3 is inserted into the mold 6 as shown in Figure 4 (A), and the tooth profile 1 and boss part are extruded by cold forging. Molded vine. At the same time, the chamfer portion 2 is also molded as shown in FIG. 4(b).
ついで、第５図（イ） （ロ）に承りように、＝１イニ
ングプレスによって歯形部１に逆テーパ一部３を冷間加
二りしＣ形成づる。Next, as shown in FIGS. 5(a) and 5(b), a reverse taper portion 3 is cold-milled into the toothed portion 1 by a one-inning press to form a C.
逆テーパ一部３を形成した素材は、第６図に承りように
、該逆テーパ一部３のところにおいて、ピッチ円径上、
リード方向にテーパーを有づるヂＡ７ツクによって少な
くとも３点ａ、ｔ＋。As shown in FIG. 6, the material forming the inverted tapered part 3 has a shape on the pitch circle diameter at the inverted tapered part 3.
At least 3 points a, t+ by the A7k having a taper in the lead direction.
Ｃて掴持し、内径４を加工する。Hold it with C and process the inner diameter 4.
本発明製造法によれば、歯形部およびチトンファ一部を
冷間鍛造で成形り゛るため、歯形部を切削加工づるため
に要していた多品種、多量の機械を必要としなくなり、
材料のロスが少なくなって歩留りが向上りる。また、内
径の加工は、歯形部の逆テーパ一部によって、ピッチ円
径上、リード方向にテーパーを有Ｊるチャックを使用し
て少なくとも３点で掴持して行なうことにより、ヂＶツ
キングは確実となり、素材の加工時のぶれが少なくなっ
て、偏心のない正確な内径加工ができる。さらに本発明
によれば、プレス作業によるタフ１〜／Ｊ（５秒程度に
短縮され、前述のように生産性が向上するために、従来
設備に対づる機械台数の圧縮、収容建屋面積の減少、ひ
いては投資額、運転資金の圧縮が計れる利点がある。According to the manufacturing method of the present invention, since the tooth profile and part of the chittle are formed by cold forging, it is no longer necessary to use a large number of machines of various types that were required to cut the tooth profile.
Material loss is reduced and yield is improved. In addition, when machining the inner diameter, the reversely tapered part of the tooth profile is used to hold the chuck at at least three points on the pitch circle diameter and tapered in the lead direction. It is reliable, there is less wobbling during machining of the material, and accurate inner diameter machining without eccentricity is possible. Furthermore, according to the present invention, the press work is shortened to about 1~/J (5 seconds), improving productivity as described above, reducing the number of machines and the area of the housing building compared to conventional equipment. This has the advantage of reducing investment costs and working capital.
第１図は本発明のギＶ−の実施例の一部斜視図、第２図
は本発明ギヤーの嵌合状態の説明図、第３図は本発明方
法の加工累月の正面図、第４図（イ）は成形時の断面図
、同（ロ）は歯形部の正面図、第５図（イ）は製品の断
面図、同（ロ）は歯形部の正面図、第６図は内径加工時
の掴持点を示づ図である。
１．１−・・・・・・歯形部
２・・・・・・チャンファ一部 ３・・・・・・逆デー
パ一部４・・・・・・内径部 ５・・・・・・ボス部
６・・・・・・成形型特許出願人 三菱製鋼株式会社
代理人弁理士 小 松 禿 岳
代理人弁理士 旭 宏
才 Ｌ 図
３
２２ 図 才 ３ 図
（イ） （口λFIG. 1 is a partial perspective view of an embodiment of the gear V- of the present invention, FIG. 2 is an explanatory diagram of the fitted state of the gear of the present invention, FIG. 3 is a front view of the processing stage according to the method of the present invention, and Figure 4 (A) is a cross-sectional view during molding, Figure 5 (B) is a front view of the tooth profile, Figure 5 (A) is a cross-sectional view of the product, Figure 6 is a front view of the tooth profile. It is a figure which shows the grip point at the time of inner diameter machining. 1.1-...Tooth profile part 2...Chamfer part 3...Reverse taper part 4...Inner diameter part 5...Boss Department
6... Forming mold patent applicant Mitsubishi Steel Corporation Patent Attorney Takeshi Komatsu Attorney Patent Attorney Kosai Asahi L Figure 3 22 Figure 3 Figure (a) (mouth λ
Claims (2)
形部とボス部を有し、該歯形部にはチャンファ一部およ
びストレート部を備え、さらに上記ストレー１〜部には
冷間鍛造による逆テーパーを形成してなることを特徴と
覆る自動車用リバースギヤー。(1) It has a tooth profile part and a boss part formed by cold forging the material, the tooth profile part has a chamfer part and a straight part, and the straight parts 1 to 3 have a reverse part formed by cold forging. An automobile reverse gear that is characterized by a tapered shape.
レート部を有する歯形部およびボス部を成形し、該スト
レート部に冷間鍛造によって逆デーパー加工を行ない、
ついで、このように加工された素材を、歯形部における
逆テーパ一部に３点以上にて掴持し、内径を加工するこ
とを特徴とり−る自動車用リバースギ（７−の製造法。(2) Cold forging the material to form a tooth profile portion and a boss portion having a bumper portion and a straight portion, and performing reverse taper processing on the straight portion by cold forging,
Next, the material processed in this way is gripped at three or more points on a part of the reverse taper of the tooth profile, and the inner diameter is processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP792884A JPS60152340A (en) | 1984-01-21 | 1984-01-21 | Reverse gear for automobile and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP792884A JPS60152340A (en) | 1984-01-21 | 1984-01-21 | Reverse gear for automobile and its manufacture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60152340A true JPS60152340A (en) | 1985-08-10 |
| JPH0256980B2 JPH0256980B2 (en) | 1990-12-03 |
Family
ID=11679181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP792884A Granted JPS60152340A (en) | 1984-01-21 | 1984-01-21 | Reverse gear for automobile and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60152340A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111730021A (en) * | 2020-06-19 | 2020-10-02 | 江苏智造新材有限公司 | Forging process of combined tooth |
-
1984
- 1984-01-21 JP JP792884A patent/JPS60152340A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111730021A (en) * | 2020-06-19 | 2020-10-02 | 江苏智造新材有限公司 | Forging process of combined tooth |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0256980B2 (en) | 1990-12-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |