JPH0394949A - Manufacture of block ring for synchronizing bite type speed change gear - Google Patents
Manufacture of block ring for synchronizing bite type speed change gearInfo
- Publication number
- JPH0394949A JPH0394949A JP23232789A JP23232789A JPH0394949A JP H0394949 A JPH0394949 A JP H0394949A JP 23232789 A JP23232789 A JP 23232789A JP 23232789 A JP23232789 A JP 23232789A JP H0394949 A JPH0394949 A JP H0394949A
- Authority
- JP
- Japan
- Prior art keywords
- cutting member
- punch
- block ring
- tooth
- cylindrical body
- 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 claims description 16
- 238000005520 cutting process Methods 0.000 claims abstract description 48
- 230000002093 peripheral effect Effects 0.000 claims abstract description 14
- 238000010008 shearing Methods 0.000 claims abstract description 3
- 238000005452 bending Methods 0.000 claims abstract 2
- 239000000463 material Substances 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 2
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 5
- 230000003028 elevating effect Effects 0.000 description 2
- 239000002783 friction material Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009497 press forging Methods 0.000 description 1
Landscapes
- Forging (AREA)
Abstract
Description
【発明の詳細な説明】
Ａ．発明の目的
（１）産業上の利用分野
本発明は、同期噛合い式変速機用ブロックリング、特に
、変速ギヤのコーンを囲繞するテーパ孔を備えた短筒体
と、その短筒体の一端部外周面に突設された複数の歯部
とよりなるブロックリングの製造方法に関する。[Detailed Description of the Invention] A. Object of the Invention (1) Industrial Field of Application The present invention relates to a block ring for a synchronized mesh transmission, particularly a short cylindrical body provided with a tapered hole surrounding a cone of a transmission gear, and one end of the short cylindrical body. The present invention relates to a method of manufacturing a block ring including a plurality of teeth protruding from the outer circumferential surface of the block ring.
（２）従来の技術
従来、この種ブロックリングは、プレス鍛造法等を適用
して数工程を経て製造されている。(2) Prior Art Conventionally, this type of block ring has been manufactured through several steps by applying a press forging method or the like.
（３）発明が解決しようとする課題
しかしながら、前記従来法によると工程が煩雑であって
、量産性が悪く、そのためブロックリングの製造コスト
が嵩む、という問題がある。(3) Problems to be Solved by the Invention However, the conventional method has problems in that the steps are complicated and mass productivity is poor, resulting in an increase in the manufacturing cost of the block ring.
本発明は、前記に鑑み、１回の塑性加工でブロックリン
グを得ることのできる前記製造方法を提供することを目
的とする。In view of the above, an object of the present invention is to provide the manufacturing method that allows a block ring to be obtained by one-time plastic working.
Ｂ，発明の構威
（１） 課題を解決するための手段
本発明は、変速ギヤのコーンを囲繞するテーパ孔を備え
た短筒体と、該短筒体の一端部外周面に突設された複数
の歯部とよりなる同期噛合い式変速機用ブロンクリング
を製造するに当り、金属製環状素材の外周部を、ポンチ
に設けられた第１切断部材とダイスに設けられた第２切
断部材とにより挟着した状態にて、前記金属製素材の内
周部に前記ポンチにより曲げ加工を施して前記短筒体に
対応する筒部を或形すると共に該筒部の一端部外周面に
フランジ部を成形し、次いで前記フランジ部に、前記第
Ｘ切断部材と第２切断部材との協働により剪断加工を施
して前記複数の歯部に対応する複数の歯形部を形或し、
その後前記筒部に、前記ポンチ、ダイスおよび第１切断
部材の協働で画成された短筒体成形用キャビテイ内で、
また各歯形部に、前記第１および第２切断部材の協働で
画成された各歯部成形用キャビティ内でそれぞれ圧縮加
工を施して前記短筒体および各歯部を或形することを特
徴とする。B. Structure of the Invention (1) Means for Solving the Problems The present invention provides a short cylindrical body provided with a tapered hole surrounding a cone of a transmission gear, and a short cylindrical body provided with a tapered hole that protrudes from the outer peripheral surface of one end of the short cylindrical body. In manufacturing a bronch ring for a synchronized gear transmission, which has a plurality of teeth, the outer periphery of a metal annular material is cut by a first cutting member provided on a punch and a second cutting member provided on a die. While sandwiched between the members, the inner circumferential portion of the metal material is bent using the punch to form a cylindrical portion corresponding to the short cylindrical body, and the outer circumferential surface of one end of the cylindrical portion is bent. forming a flange portion, and then shearing the flange portion by the cooperation of the X-th cutting member and the second cutting member to form a plurality of tooth-shaped portions corresponding to the plurality of tooth portions;
Thereafter, in the cylindrical portion, within a short cylindrical body forming cavity defined by the cooperation of the punch, the die, and the first cutting member,
Further, each of the tooth profile portions is compressed within each tooth molding cavity defined by the cooperation of the first and second cutting members to shape the short cylinder and each of the tooth portions. Features.
（２） “作 用
前記方法によれば、環状素材からブロンクリングが１回
の塑性加工によって製造される。(2) "Function" According to the above method, a bronc ring is manufactured from an annular material by one-time plastic working.
（３）実施例
第１図は公知の同期噛合い式変速機の一部を示し、主軸
１に回転可能に支持された変速ギヤとしての駆動ギャ２
に、副軸３に嵌着された従動ギャ４が噛合している．主
軸ｌに嵌着されたハブ５にスリーブ６が噛合し、そのハ
ブ５と駆動ギャ２のコーン７との間に金属製ブロックリ
ング８が介装される。(3) Embodiment FIG. 1 shows a part of a known synchronous mesh transmission, in which a drive gear 2 as a speed change gear rotatably supported on a main shaft 1 is shown.
A driven gear 4 fitted onto the subshaft 3 is engaged with the auxiliary shaft 3. A sleeve 6 meshes with a hub 5 fitted on the main shaft 1, and a metal block ring 8 is interposed between the hub 5 and the cone 7 of the drive gear 2.
プロ・７クリング８は、第２〜第４図にも示すように駆
動ギャ２のコーン７を囲繞するテーパ孔９を備えた短筒
体１０と、その短筒体１０の一端部外周面に突設された
複数の歯部１１とよりなる。As shown in FIGS. 2 to 4, the Pro-7 ring 8 includes a short cylindrical body 10 equipped with a tapered hole 9 surrounding the cone 7 of the drive gear 2, and an outer peripheral surface of one end of the short cylindrical body 10. It consists of a plurality of protruding teeth 11.
短筒体ＩＯのテーパ孔９に、複数のベーパベースの摩擦
材セグメント１２が相隣るもの相互間にオイル溝１３を
存して接着される。なお、第２〜第４図のブロックリン
グ８は、塑性加工直後のものであり、したがって摩擦材
セグメンＩ−１２およびテーパ孔９開口縁の面取りは省
かれている。A plurality of vapor-based friction material segments 12 are bonded to the tapered hole 9 of the short cylindrical body IO with oil grooves 13 between adjacent ones. The block ring 8 shown in FIGS. 2 to 4 has just been subjected to plastic working, and therefore the chamfering of the friction material segment I-12 and the opening edge of the tapered hole 9 is omitted.
第５〜第７図において、ブロックリング製造装Ｆｔ４は
、互に協働してブロックリング８の製造を行う上部加工
ブロック１５．と下部加工ブロック１５，とを備えてい
る。5 to 7, the block ring manufacturing equipment Ft4 includes an upper processing block 15. which cooperates with each other to manufacture the block ring 8. and a lower processing block 15.
上部加工ブロック１５，は次のように構威される。The upper processing block 15 is constructed as follows.
即ち、昇降板１６の下面にポンチホルダ１７が取付けら
れ、そのポンチホルダ１７にボンチｌ８が保持される。That is, a punch holder 17 is attached to the lower surface of the elevating plate 16, and the punch 18 is held in the punch holder 17.
ポンチ１８は円柱状本体１９と、その本体ｌ９の下端に
連設された円錐台形加工部２０とよりなり、本体１９の
上端部がポンチホルダ１７に保持され、また加工部２０
のテーパ面２１はブロックリング８のテーパ孔９に対応
する。The punch 18 consists of a cylindrical main body 19 and a truncated conical processing part 20 connected to the lower end of the main body 19. The upper end of the main body 19 is held by the punch holder 17, and the processing part 20
The tapered surface 21 corresponds to the tapered hole 9 of the block ring 8.
加工部２０は、その大径端が上部に、また小径端が下部
にそれぞれ位置するように形成される。The processed portion 20 is formed such that its large diameter end is located at the top, and its small diameter end is located at the bottom.
第６図にも示すように、ポンチホルダｌ７の上下方向中
間部に、水平面内において十字形をなす摺動孔２２が形
成され、その摺動孔２２に、それと同一形状のガイド部
材２３が摺動自在に嵌合される。As shown in FIG. 6, a sliding hole 22 having a cross shape in the horizontal plane is formed in the vertically intermediate portion of the punch holder l7, and a guide member 23 having the same shape slides into the sliding hole 22. Can be fitted freely.
ボンチｌ８の本体１９に、短円筒形第■切断部材２４．
が摺動自在に嵌合され、その第１切断部材２４＋ と前
記ガイド部材２３とが、摺動孔２２の底壁２５を貫通す
る４本のガイドビン２６を介して連結される。A short cylindrical cutting member 24 is attached to the main body 19 of the punch l8.
are slidably fitted, and the first cutting member 24+ and the guide member 23 are connected via four guide pins 26 passing through the bottom wall 25 of the sliding hole 22.
摺動孔２２の上壁２７に貫通孔２８が形戒され、その貫
通孔２８を通して昇降板ｌ６下面とガイド部材２３上面
との間にばね２９が縮設される。したがって、上部加工
ブロック１５，の上昇時には、ばね２９の弾発力でガイ
ド部材２３が底壁２５に押圧されて、ポンチホルダ１７
下面と第１切断部材２４１上面との間には所定の間隔ｄ
が形戒され、また第１切断部材２４．の下端面はポンチ
１８の下端面と略同一平面上に在る。A through hole 28 is formed in the upper wall 27 of the sliding hole 22, and a spring 29 is compressed between the lower surface of the elevating plate l6 and the upper surface of the guide member 23 through the through hole 28. Therefore, when the upper processing block 15 is raised, the guide member 23 is pressed against the bottom wall 25 by the elastic force of the spring 29, and the punch holder 17
There is a predetermined distance d between the lower surface and the upper surface of the first cutting member 241.
is cut, and the first cutting member 24. The lower end surface of the punch 18 is substantially on the same plane as the lower end surface of the punch 18 .
第１切断部材２４．は上例の大径部３０と下側の小径部
３１とよりなり、その小径部３１の下端外周部に、半径
方向外方および下方に開口するように複数の切欠き溝３
２が形成される。各切欠き溝３２は、ブロックリング８
の相隣る両歯部１ｌ間の各谷部３３に対応し、また相隣
る両切欠き溝３２間の各ランド部３４は、ブロックリン
グ８の各歯部１１に対応する。First cutting member 24. consists of the large diameter part 30 of the above example and the small diameter part 31 on the lower side, and a plurality of notched grooves 3 are formed on the lower end outer circumference of the small diameter part 31 so as to open outward and downward in the radial direction.
2 is formed. Each notch groove 32 has a block ring 8
The grooves 33 between the two adjacent toothed portions 1l correspond to the respective troughs 33, and the land portions 34 between the two adjacent notched grooves 32 correspond to the respective toothed portions 11 of the block ring 8.
各切欠き溝３２のコ字形をなす下端開口縁は切断刃３５
として機能する。The U-shaped lower opening edge of each notch groove 32 is a cutting blade 35.
functions as
？部加工ブロック１５■は次のように構威される。? The partial processing block 15■ is structured as follows.
即ち、基台３６上に存する固定板３７の上面に、ダイス
３８が固定され、そのダイス３８は短円筒形外筒体３９
と、外筒体３９の内側に存する受け台４０とより構威さ
れる。That is, a die 38 is fixed to the upper surface of the fixed plate 37 existing on the base 36, and the die 38 is attached to the short cylindrical outer body 39.
and the pedestal 40 existing inside the outer cylinder body 39.
外筒体３９は、上側の大径孔４１と、下側の小径孔４２
とを有し、その小径孔４２に受け台４０が摺動自在に嵌
合され、また大径孔４１に第１切断部材２４，の小径部
３ｌが嵌合し得るようになっている。The outer cylinder 39 has an upper large diameter hole 41 and a lower small diameter hole 42.
The pedestal 40 is slidably fitted into the small diameter hole 42, and the small diameter portion 3l of the first cutting member 24 can be fitted into the large diameter hole 41.
第７図にも示すように、大径孔４１および小径孔４２間
の環状段付部４３に、半径方向内方および上方に開口す
るように複数の切欠き溝４４が形成される。各切欠き溝
４４は第１切断部材２４，？各ランド部３４と嵌合し、
また相隣る両切欠き溝４４間の各ランド部４５は第１切
断部材２４，の各切欠き溝３２と嵌合し得るようになっ
ている。As shown in FIG. 7, a plurality of cutout grooves 44 are formed in the annular stepped portion 43 between the large diameter hole 41 and the small diameter hole 42 so as to open radially inward and upward. Each notch groove 44 is formed by the first cutting member 24,? Fits into each land portion 34,
Moreover, each land portion 45 between both adjacent notch grooves 44 can be fitted into each notch groove 32 of the first cutting member 24 .
各ランド部４５のコ字形をなす上端縁は切断刃４６とし
て機能し、したがって各切欠き溝４４および各ランド部
４５は第２切断部材２４■を構成する。また第１切断部
材２４．の各ランド部３４および第２切断部材２４■の
各切欠き溝４４は互に協働して各歯部成形用キャビティ
を画成する。The U-shaped upper edge of each land portion 45 functions as a cutting blade 46, and therefore each notch groove 44 and each land portion 45 constitute a second cutting member 24■. Also, the first cutting member 24. The land portions 34 and the notch grooves 44 of the second cutting member 241 cooperate with each other to define cavities for forming each tooth portion.
各ランド部４５の内端は段付部４３の内周縁よりも半径
方向外方に位置し、また外端は大径孔４ｌの内周面に連
設されている。The inner end of each land portion 45 is located radially outward from the inner peripheral edge of the stepped portion 43, and the outer end is connected to the inner peripheral surface of the large diameter hole 4l.
受け台４０の上面は、平坦な外周環状面４７と、外周環
状面４７に囲繞される凹面４日とよりなる。The upper surface of the pedestal 40 consists of a flat outer circumferential annular surface 47 and a concave surface surrounded by the outer circumferential annular surface 47.
凹面４８は、ポンチ１日の加工部２０下端と嵌合するこ
とによりストッパとして機能し、また外周環状面４７は
加工部２０のテーパ面２１、小径孔４２内周面および第
１切断部材２４，下端面と協働して、短筒体成形用キャ
ビティを画或する。The concave surface 48 functions as a stopper by fitting with the lower end of the processing section 20 of the punch 1, and the outer circumferential annular surface 47 is connected to the tapered surface 21 of the processing section 20, the inner circumferential surface of the small diameter hole 42, and the first cutting member 24. In cooperation with the lower end surface, a cavity for forming a short cylindrical body is formed.
基台３６および固定板３７にＷＡ動孔４９が一連に形戒
され、その摺動孔４９に、受け台４０に連結されたノッ
クアウトビン５０が摺動自在に嵌合される。A series of WA movement holes 49 are formed in the base 36 and the fixed plate 37, and a knockout bin 50 connected to the pedestal 40 is slidably fitted into the slide holes 49.
次に、前記製造装置１４によるブロックリング８の製造
方法について説明する。Next, a method for manufacturing the block ring 8 using the manufacturing apparatus 14 will be explained.
第８図に示すように、金属板に打抜き加工を施して環状
素材Ｂを得る。この場合、環状素材Ｂの外径は、ダイス
３８の大径孔４１の内径と略等しく、また幅は、ブロッ
クリング８の歯部１１の丈および短筒体１０の長さに応
じて決められる。As shown in FIG. 8, a metal plate is punched to obtain an annular material B. In this case, the outer diameter of the annular material B is approximately equal to the inner diameter of the large-diameter hole 41 of the die 38, and the width is determined according to the length of the teeth 11 of the block ring 8 and the length of the short cylinder 10. .
第９図（ａ），〜）に示すように、常温状態の環状素材
Ｂをダイス３８の大径孔４ｌに嵌合して、その外周部を
各ランド部４５上面に載置する。この場合、環状素材Ｂ
の内周部はダイス３８の凹面４８？方に張出している。As shown in FIGS. 9(a) and 9), the annular material B at room temperature is fitted into the large diameter hole 4l of the die 38, and its outer peripheral portion is placed on the upper surface of each land portion 45. In this case, the annular material B
The inner periphery of is the concave surface 48 of the die 38? It's sticking out in the direction.
第ｌＯ図（ａ）， （ｂ）に示すように、上部加エブロ
ック１５，を下降すると、第１切断部材２４，の下端面
が環状素材Ｂの外周部に当接して、その外周部を第２切
断部材２４■の各ランド部４５との間に挟着する。As shown in FIGS. 10(a) and 10(b), when the upper machining block 15 is lowered, the lower end surface of the first cutting member 24 comes into contact with the outer periphery of the annular material B, cutting the outer periphery. It is sandwiched between each land portion 45 of the second cutting member 24■.
第１１図に示すように、第１切断部材２４，のそれ以上
の下降は各ランド部４５により妨げられるので、ポンチ
１８が第１切断部材２４，に対し摺動しながら下降して
環状素材Ｂの内周部を下方へ折曲げる。As shown in FIG. 11, since the further lowering of the first cutting member 24 is prevented by each land portion 45, the punch 18 slides relative to the first cutting member 24 and lowers the annular material B. Bend the inner circumference downward.
第１２図に示すように、ポンチ１８の下端面が受け台４
０の外周環状面４７を通過したときには環状素材Ｂより
短筒体１０に対応する筒部ｂ＋が成形されると共に筒部
ｂ１の上端部外周面にフランジ部ｂ２が或形される。As shown in FIG. 12, the lower end surface of the punch 18 is
When passing through the outer circumferential annular surface 47 of No. 0, a cylindrical portion b+ corresponding to the short cylindrical body 10 is formed from the annular material B, and a flange portion b2 is formed on the outer circumferential surface of the upper end portion of the cylindrical portion b1.
第１３図（ａ）． （ｂ）に示すように、ポンチホルダ
ｌ？の下端面が第１切断部材２４１の上端面に当接する
ことにより第１切断部材２４１が押下げられ、その各切
断刃３５と第２切断部材２４■の各切断刃４６との協働
によりフランジ部ｂ２に剪断加工が施されて、複数の歯
部１１に対応する複数の歯形部ｂ，が形成される。Figure 13(a). As shown in (b), punch holder l? The first cutting member 241 is pressed down by the lower end surface contacting the upper end surface of the first cutting member 241, and the flange is The portion b2 is sheared to form a plurality of tooth profile portions b corresponding to the plurality of tooth portions 11.
そして、第１切断部材２４，の各ランド部３４が第２切
断部材２４■の各切欠き溝４４に嵌合し、また第２切断
部材２４２の各ランド部４５が第１切断部材２４、の各
切欠き溝３２に嵌合するので、各歯形部ｂ，は第２切断
部材２４■の各切欠き溝４４に押込まれ、一方、相隣る
両歯形部ｂ３間に生じたスクラップＳは第ｌ切断部材２
４．の切欠き溝３２に収容される。Then, each land portion 34 of the first cutting member 24 fits into each notch groove 44 of the second cutting member 24, and each land portion 45 of the second cutting member 242 fits into each notch groove 44 of the second cutting member 24. Since it fits into each notched groove 32, each toothed part b is pushed into each notched groove 44 of the second cutting member 24■, while the scrap S generated between the two adjacent toothed parts b3 is l Cutting member 2
4. It is accommodated in the notch groove 32 of.
第１４図（ａ），（ロ）に示すように、引続く上部加工
ブロック１５，の下降によりポンチ１８が受け台４０の
凹面４８に嵌合して、そのブロンク１５，？下降が停止
する。その停止するまでの間に、ボンチ１８のテーパ面
２１と、ダイス３８の小径孔４２内周面、外周環状面４
７、第１切断部材２４１の下端面の協働により短筒体成
形用キャビティＣ１が画成され、そのキャビティＣ，内
で筒部ｂ１に圧縮加工が施されるので、短筒体１０が成
形される。同時に、第１切断部材２４，の各ランド部３
４および第２切断部材２４■の各切欠き溝４４の協働に
より各歯部成形用キャビティＣ２が画戒され、そのキャ
ビティＣ，内で各歯形部ｂ，に圧縮加工が施されるので
、各歯部１１が或形される。As shown in FIGS. 14(a) and 14(b), as the upper machining block 15 continues to descend, the punch 18 fits into the concave surface 48 of the pedestal 40, and the bronch 15, ? The descent stops. Until it stops, the taper surface 21 of the punch 18, the inner peripheral surface of the small diameter hole 42 of the die 38, and the outer peripheral annular surface 4
7. A cavity C1 for forming a short cylindrical body is defined by the cooperation of the lower end surface of the first cutting member 241, and compression processing is performed on the cylindrical part b1 within the cavity C, so that the short cylindrical body 10 is formed. be done. At the same time, each land portion 3 of the first cutting member 24
4 and the notch grooves 44 of the second cutting member 24■, each tooth molding cavity C2 is defined, and each tooth profile b is compressed within the cavity C. Each tooth 11 is shaped.
Ｃ．発明の効果
本発明によれば、環状素材に１回の塑性加工を施すこと
によってブロックリングを得ることができ、これにより
ブロックリングの量産性を向上させて、その製造コスト
を低減することができる。C. Effects of the Invention According to the present invention, a block ring can be obtained by subjecting an annular material to one-time plastic working, thereby improving the mass production of the block ring and reducing its manufacturing cost. .
？た実施設備面においても、製造工程の簡素化に伴い製
造装置を小型化し得るといった利点もある。? In terms of implementation equipment, there is also the advantage that manufacturing equipment can be downsized due to the simplification of the manufacturing process.
第Ｉ図は同期噛合い式変速機の要部破断部分側面図、第
２図はブロックリングの平面図、第３図は第２図■一■
線断面図、第４図はブロックリングの斜視図、第５図は
ブロックリング製造装置の縦断正面図、第６，第７図は
第５図Ｖｌ−Ｖｌ、■■矢視図、第８図は環状素材の斜
視図、第９〜第１４図はブロックリングの製造工程説明
図である．Ｂ・・・環状素材、ｂ，・・・筒部、ｂ２・
・・フランジ部、ｂ，・・・歯形部、ｃ１・・・短筒体
成形用キャビティ、Ｃ２・・・歯部成形用キャビティ、
２・・・駆動ギヤ（変速ギヤ）、７・・・コーン、８・
・・ブロックリング、９・・・テーパ孔、１０・・・短
筒体、ｌ１・・・歯部、１８・・・ポンチ、２４，，２
４■・・・第１，第２切断部材、３日・・・ダイス
第２図
９
第３図
第４図
第５図
７６
第６図
第７図
第１４図
（ａ）
２４２
第１３図
Ａ２Figure I is a side view of the main parts of the synchronous mesh transmission, Figure 2 is a plan view of the block ring, and Figure 3 is Figure 2.
Line sectional view, Figure 4 is a perspective view of the block ring, Figure 5 is a longitudinal sectional front view of the block ring manufacturing device, Figures 6 and 7 are Figure 5 Vl-Vl, ■■ arrow view, and Figure 8. is a perspective view of the annular material, and Figures 9 to 14 are explanatory diagrams of the manufacturing process of the block ring. B... Annular material, b,... Cylindrical part, b2.
... flange part, b, ... tooth shape part, c1 ... cavity for short cylinder molding, C2 ... cavity for tooth part molding,
2... Drive gear (shift gear), 7... Cone, 8...
...Block ring, 9...Tapered hole, 10...Short cylinder, l1...Tooth portion, 18...Punch, 24,,2
4■...1st and 2nd cutting members, 3rd...Dice 2 Fig. 9 Fig. 3 Fig. 4 Fig. 5 Fig. 76 Fig. 6 Fig. 7 Fig. 14 (a) 242 Fig. 13 A2
Claims (1)
、該短筒体の一端部外周面に突設された複数の歯部とよ
りなる同期噛合い式変速機用ブロックリングを製造する
に当り、金属製環状素材の外周部を、ポンチに設けられ
た第１切断部材とダイスに設けられた第２切断部材とに
より挟着した状態にて、前記金属製素材の内周部に前記
ポンチにより曲げ加工を施して前記短筒体に対応する筒
部を成形すると共に該筒部の一端部外周面にフランジ部
を成形し、次いで前記フランジ部に、前記第１切断部材
と第２切断部材との協働により剪断加工を施して前記複
数の歯部に対応する複数の歯形部を形成し、その後前記
筒部に、前記ポンチ、ダイスおよび第１切断部材の協働
で画成された短筒体成形用キャビティ内で、また各歯形
部に、前記第１および第２切断部材の協働で画成された
各歯部成形用キャビティ内でそれぞれ圧縮加工を施して
前記短筒体および各歯部を成形することを特徴とする同
期噛合い式変速機用ブロックリングの製造方法。A block ring for a synchronous mesh transmission is manufactured, which comprises a short cylindrical body equipped with a tapered hole surrounding a cone of a transmission gear, and a plurality of teeth protruding from the outer peripheral surface of one end of the short cylindrical body. At this time, while the outer peripheral part of the metal annular material is sandwiched between a first cutting member provided on the punch and a second cutting member provided on the die, the inner peripheral part of the metal material is A cylindrical portion corresponding to the short cylindrical body is formed by bending with a punch, and a flange portion is formed on the outer peripheral surface of one end of the cylindrical portion, and then the first cutting member and the second cutting member are attached to the flange portion. A shearing process is performed in cooperation with the member to form a plurality of tooth profiles corresponding to the plurality of tooth parts, and then a plurality of tooth profiles are formed in the cylinder part by the cooperation of the punch, the die, and the first cutting member. The short cylindrical body and A method for manufacturing a block ring for a synchronous mesh transmission, characterized by molding each tooth portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23232789A JP2782364B2 (en) | 1989-09-07 | 1989-09-07 | Method of manufacturing block ring for synchronous mesh transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23232789A JP2782364B2 (en) | 1989-09-07 | 1989-09-07 | Method of manufacturing block ring for synchronous mesh transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0394949A true JPH0394949A (en) | 1991-04-19 |
| JP2782364B2 JP2782364B2 (en) | 1998-07-30 |
Family
ID=16937458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23232789A Expired - Lifetime JP2782364B2 (en) | 1989-09-07 | 1989-09-07 | Method of manufacturing block ring for synchronous mesh transmission |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2782364B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07256387A (en) * | 1994-03-18 | 1995-10-09 | Daido Steel Co Ltd | Method and device for forging detecting ring and coronary parts for torque sensor |
| EP0737540A1 (en) * | 1995-04-10 | 1996-10-16 | Feinstanz Ag | Method for making transmission parts with special teeth, in particular synchronisation teeth |
| US8250762B2 (en) | 2008-01-25 | 2012-08-28 | Canon Kabushiki Kaisha | Method of manufacturing metal member with plurality of projections |
-
1989
- 1989-09-07 JP JP23232789A patent/JP2782364B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07256387A (en) * | 1994-03-18 | 1995-10-09 | Daido Steel Co Ltd | Method and device for forging detecting ring and coronary parts for torque sensor |
| EP0737540A1 (en) * | 1995-04-10 | 1996-10-16 | Feinstanz Ag | Method for making transmission parts with special teeth, in particular synchronisation teeth |
| US5722164A (en) * | 1995-04-10 | 1998-03-03 | Feinstanz Ag | Method for manufacturing gearing components with special gearing, especially synchromesh gearing |
| US8250762B2 (en) | 2008-01-25 | 2012-08-28 | Canon Kabushiki Kaisha | Method of manufacturing metal member with plurality of projections |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2782364B2 (en) | 1998-07-30 |
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