JP2817325B2 - Forming method by forging joint - Google Patents

Forming method by forging joint

Info

Publication number
JP2817325B2
JP2817325B2 JP5427890A JP5427890A JP2817325B2 JP 2817325 B2 JP2817325 B2 JP 2817325B2 JP 5427890 A JP5427890 A JP 5427890A JP 5427890 A JP5427890 A JP 5427890A JP 2817325 B2 JP2817325 B2 JP 2817325B2
Authority
JP
Japan
Prior art keywords
forging
parts
mold
joined
forged
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.)
Expired - Lifetime
Application number
JP5427890A
Other languages
Japanese (ja)
Other versions
JPH03258436A (en
Inventor
晃浩 滝口
正紀 太田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Isuzu Motors Ltd
Original Assignee
Isuzu Motors Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Isuzu Motors Ltd filed Critical Isuzu Motors Ltd
Priority to JP5427890A priority Critical patent/JP2817325B2/en
Publication of JPH03258436A publication Critical patent/JPH03258436A/en
Application granted granted Critical
Publication of JP2817325B2 publication Critical patent/JP2817325B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Forging (AREA)

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、複数の部材を鍛造接合により、所望の形状
の機械部品に一体的に成形する方法に関するものであ
る。
Description: TECHNICAL FIELD The present invention relates to a method for integrally molding a plurality of members into a mechanical component having a desired shape by forging and joining.

〔従来の技術〕[Conventional technology]

従来、歯車の製造には、鍛造による一体成形、焼結成
形、板金からの打抜き成形等が採用されているが、自動
車のトランスミッションギヤのように強度が要求される
部品の場合は、鍛造による一体成形が主流となってい
る。
Conventionally, gears have been manufactured by forging using integral molding, sintering, or punching from sheet metal.However, in the case of parts that require strength, such as transmission gears for automobiles, integrated molding by forging is used. Molding is the mainstream.

鍛造による成形の問題点として、次の点が挙げられ
る。
Problems of forming by forging include the following.

イ、鍛造に使用するプレスの能力、肉流れ等に制約され
て、薄肉化、強度不要部の肉盗みが制限される。
B) The ability of the press used for forging, the flow of meat, and the like are restricted, so that thinning and theft of unnecessary strength parts are restricted.

ロ、最も強度を要する部分に合わせて全体の材質が決め
られるため、強度不要部にも高級材料が使用されること
になり、コストが高くなる。
(B) Since the overall material is determined according to the part requiring the highest strength, a high-grade material is also used for the part requiring no strength, which increases the cost.

ハ、部分により要求される材質、品質が異なっても、同
時に成形できないため、後工程において溶接等により別
途接合しなければならない。
C. Even if the required material and quality are different depending on the part, since they cannot be molded simultaneously, they must be separately joined by welding or the like in a later step.

これらの問題点の対策として、特開昭62−183932号公
報には、第4図に示すように、板金から打抜きにより成
形したプレス部品s1と予め中空円筒状に成形した部品s2
を下型21にセットし、円錐状突起23を有する上型22でプ
レスし、部品s2を鍛造すると同時に部品s1と接合する吸
排気弁のアッパーシートSの製法が記載されている。
As a countermeasure against these problems, Japanese Patent Publication No. Sho 62-183932, as shown in FIG. 4, part s 2 molded in advance into a hollow cylindrical shape and press parts s 1 molded by punching from sheet metal
Was set on the lower mold 21, pressed by the upper die 22 having a conical protrusion 23, preparation of the upper sheet S of the intake and exhaust valves to be joined when forging the part s 2 at the same time component s 1 and is described.

また、特開昭62−16838号公報には、第5図に示すよ
うに、釘Uをその頭部を入れる凹部を形成した部品Vに
嵌合して下型31にセットし、上型32で部品Vを鍛造して
座金Wを形成すると同時に釘Uの頭部を包み込んで接合
する靴用の鋲の製法が記載されている。
Japanese Patent Laid-Open No. Sho 62-16838 discloses that, as shown in FIG. 5, a nail U is fitted into a part V formed with a recess for receiving the head thereof, and is set on a lower mold 31 and an upper mold 32 is formed. Describes a method of forming a washer W for forming a washer W to form a washer W, and at the same time wrap the head of the nail U and join it.

〔発明が解決しようとする課題〕[Problems to be solved by the invention]

前記第4図に示された鍛造接合法では、2部品からな
る異種材料の鍛造接合が可能となる。しかし、鍛造され
る部品s2がプレス部品s1で支持され、鍛造時に部品s1
片面全体に部品s2が塑性流動して接合されるものである
から、吸排気弁のアッパーシートSのような特殊形状品
の成形に限られる。
According to the forging joining method shown in FIG. 4, forging joining of dissimilar materials composed of two parts becomes possible. However, parts s 2 to be forged is supported by stamping parts s 1, part s 2 to the entire one surface of the component s 1 during forging because intended to be joined by plastic flow, the intake and exhaust valves of the upper sheet S It is limited to the molding of such specially shaped products.

また、第5図に示された鍛造接合法では、部品Uは降
下する上型32で上型の降下方向と直角方向に位置決めさ
れることになるが、鍛造される部品Uが部品Vで直接支
持され、鍛造接合に際して支持体である部品Vが塑性変
形するため、上型の降下方向における部品Uの位置決め
が不安定となり、成形された靴鋲の座金Wと釘Uの相対
位置が不正確となる。
Further, in the forging joining method shown in FIG. 5, the part U is positioned by the descending upper mold 32 in a direction perpendicular to the descending direction of the upper mold. Since the part V, which is a support, is plastically deformed during the forging joint, the positioning of the part U in the lowering direction of the upper die becomes unstable, and the relative positions of the washer W and the nail U of the formed shoe tack are inaccurate. Becomes

更に、前記の鍛造接合は、いずれも2部品の鍛造接合
に限られ、3部品以上の鍛造接合は、事実上不可能であ
る。
Furthermore, the above-mentioned forging joining is limited to forging joining of two parts, and forging joining of three or more parts is practically impossible.

本発明は、従来の上記問題点を解決し、鍛造接合され
る部品の位置決めを正確に行い、また、3部品以上の鍛
造接合を可能とする成形方法を提供することを目的とす
るものである。
SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned conventional problems and to provide a molding method for accurately positioning a part to be forged and joined and forging and joining three or more parts. .

〔課題を解決するための手段及び作用〕[Means and actions for solving the problem]

本発明は、上型又は下型の少なくとも一方に設置した
バネを介装したスライド型で被接合部品を支持し、その
周りにセットした被鍛造部品を成形の圧力で塑性変形さ
せて前記被接合部品の縁部を包み込むように一体的に接
合する鍛造接合による成形方法である。
According to the present invention, the parts to be joined are supported by a slide mold interposed with a spring installed in at least one of an upper mold and a lower mold, and the forged parts set therearound are plastically deformed by molding pressure to form the joined parts. This is a forming method by forging joining in which the edges of the components are integrally joined so as to enclose them.

型内にセットされた被接合部品は、スライド型で支持
され、被鍛造部品に成形の圧力が加わったときに、被接
合部品はバネ圧が負荷されたスライド型で位置決め保持
され、その周りに被鍛造部品が塑性変形して一体的に接
合される。
The part to be joined set in the mold is supported by a slide mold, and when molding pressure is applied to the forged part, the part to be joined is positioned and held by a slide mold loaded with spring pressure. The forged part is plastically deformed and integrally joined.

〔実施例〕〔Example〕

本発明の実施例を以下に説明する。 Embodiments of the present invention will be described below.

第1図は本発明の一実施例を断面で示し、中心線の左
に成形部品をセットした状態を、中心線の右に鍛造接合
した状態を示す。
FIG. 1 is a cross-sectional view of an embodiment of the present invention, showing a state where a molded part is set to the left of the center line and a state where it is forged and joined to the right of the center line.

第2図は、成形する部品及び鍛造接合した歯車を示す
断面図である。
FIG. 2 is a sectional view showing a part to be formed and a gear forged and joined.

第1図において、金型は、固定の下型1と可動の上型
2で構成され、上型2にはスライド型3がバネ4を介し
て設置されている。
In FIG. 1, the mold includes a fixed lower mold 1 and a movable upper mold 2, and a slide mold 3 is mounted on the upper mold 2 via a spring 4.

第2図(C)に示す鍛造接合した歯車Pの成形用の部
品は、第2図(A)に示す予め肉盗み部qを成形したボ
ス部とリブ部を形成する部品p1と、第2図(B)に示す
後に歯形を形成する周縁部の中空円筒状の部品p2の2部
品からなるもので、これらの材質は適宜選定することが
できる。
Parts for forming gears P forged joint shown in FIG. 2 (C) is a component p 1 to form a boss and a rib portion in advance molded thinned portion q shown in FIG. 2 (A), the made of 2 Figure 2 parts of the hollow cylindrical part p 2 of the peripheral portion forming a tooth profile after (B), the these materials can be appropriately selected.

鍛造接合される部品p1を第1図の中心線の左に示すよ
うに、肉盗み部qを利用して下型1に位置決めセット
し、その部品p1の外周に鍛造により変形させる部品p2
セットする。この場合、部品p1と部品p2の下面は、tだ
け軸線方向にずらした位置とする。
Parts p 1 is forged joined as shown in the left of the center line of FIG. 1, part positioned set in the lower mold 1 by using a thinned portion q, it is deformed by forging on the outer periphery of the part p 1 p Set 2 . In this case, the lower surface of the component p 1 and the part p 2 is the position shifted in the axial direction by t.

上型2を降下させると、スライド型3が部品p1に当接
し、バネ4を圧縮しながら部品p1を下型1に押圧してそ
の位置を保持し、次いで上型2が部品p2を押圧し、第1
図の中心線の右に示すように、部品p2が位置決めされた
部品p1の外縁部に塑性流動して両者が一体的に接合され
る。
When lowering the upper mold 2, the slide die 3 is in contact with the part p 1, and holds the position by pressing the part p 1 to the lower mold 1 while compressing the spring 4, and then the upper mold 2 is part p 2 Press the first
As shown in the right of the center line of the figure, part p 2 are both being plastic flow is integrally joined to the outer edge of the part p 1 positioned.

この鍛造成形工程においては、主として部品p2だけが
塑性流動することになるので、歯車Pを一体鍛造するの
に比べて鍛造成形部位が小さいため、大形のプレス機械
を必要としない。
In this forging process, because primarily only part p 2 will to plastic flow, because of their small forged parts as compared to integrated forged gears P, does not require a large press machine.

第3図に本発明の他の実施例を示す。 FIG. 3 shows another embodiment of the present invention.

この場合の成形品は、第3図(B)に示すリブを2個
の板材とした歯車で、この歯車Rは、ボス部r1と後に歯
形を形成する周縁部の中空円筒状の部品r2とを2個の板
材r3,r4とで連結した4部品からなる成形品である。リ
ブ部r3,r4の間には、中空部r5が形成される。
Moldings in this case, in the gear that the two plate members ribs shown in FIG. 3 (B), the gear R comprises a hollow cylindrical component r of the peripheral portion for forming a tooth profile after the boss portion r 1 This is a molded product composed of four parts in which 2 is connected to two plate members r 3 and r 4 . Between the rib r 3, r 4, hollow portions r 5 is formed.

第3図(A)の中心線の左にこれらの成形部品をセッ
トした状態を示す。
A state in which these molded parts are set is shown on the left of the center line in FIG. 3 (A).

第3図(A)において、金型は、固定の下型11と可動
の上型12で構成され、下型11にはスライド型13がバネ14
を介して設置されている。
In FIG. 3 (A), the mold is composed of a fixed lower mold 11 and a movable upper mold 12, and a slide mold 13 is
Is installed through.

第3図(A)の中心線の左に示すように、ボス部品r1
に段部を形成して2枚の板材r3,r4を部品r2の内周面と
の間に保持し、これらの部品を下型11にセットする。こ
の際、板材r4の下面はスライド型13で支持される。
As shown in the left of the center line of FIG. 3 (A), the boss component r 1
A step is formed on the lower plate 11 to hold the two plate members r 3 and r 4 between the inner peripheral surface of the component r 2 and these components. At this time, the lower surface of the plate material r 4 is supported by the slide 13.

上型12を降下させると、上型12がボス部品r1と部品r2
と当接してこれらを塑性変形させる。この際、板材r
4は、スライド型13に支持されながらそのバネ14を圧縮
して降下し、上型12の降下方向の位置が決められ、第3
図(A)の中心線の右に示すように、板材r3,r4の内外
周部にボス部品r1及び部品r2が塑性流動してこれらが一
体に接合され、リブ部が中空の軽量で強固な歯車素材が
成形される。
When lowering the upper die 12, upper die 12 is a boss part r 1 and the component r 2
And make them plastically deform. At this time,
4 , while being supported by the slide mold 13, the spring 14 is compressed and descends, and the position of the upper mold 12 in the descending direction is determined.
As shown in the right of the center line of FIG. (A), the boss component r 1 and the component r 2 on the inner peripheral portion of the plate r 3, r 4 is plastic flow of these are joined together, the rib portion is hollow A lightweight and strong gear material is formed.

この実施例では、リブ部を2枚の板材とした4部品か
らなる歯車の成形方法を示したが、リブ部を1枚の板材
とした3部品からなる歯車の成形方法に適用できるのは
勿論である。
In this embodiment, the method of forming a gear consisting of four parts using two ribs as the ribs has been described. However, it is needless to say that the method can be applied to the method of forming gears consisting of three parts using the ribs as one plate. It is.

以上の実施例では、2ないし4部品からなる歯車の成
形方法を示したが、メインシャフト、カウンターシャフ
ト、アクスルシャフト等のフランジ付シャフトの成形に
も適用でき、各部品には、鍛造、鋳造、打抜き等による
素材ないしプリフォーム材を適宜使用することができ
る。
In the above embodiment, the method of forming a gear composed of two to four parts has been described. However, the present invention can be applied to the formation of a flanged shaft such as a main shaft, a counter shaft, and an axle shaft. A material or a preform material obtained by punching or the like can be appropriately used.

〔発明の効果〕〔The invention's effect〕

本発明は、鍛造接合する部品の位置決めを正確に行う
ことができ、また、3部品以上を鍛造接合により一体的
に成形することを可能とする効果がある。
ADVANTAGE OF THE INVENTION This invention has the effect of being able to accurately position components to be forged and joined, and to be able to integrally form three or more components by forging and joining.

【図面の簡単な説明】[Brief description of the drawings]

第1図は本発明の成形方法の一実施例の断面図、第2図
は成形する部品及び鍛造接合した歯車を示す断面図、第
3図は本発明の他の実施例を示す断面図、第4図及び第
5図は従来の鍛造接合方法をそれぞれ示す断面図であ
る。 1,11:下型、2,12:上型 3,13:スライド型、4,14:バネ P,R:成形歯車 p1,p2:部品 r1〜r4:部品
FIG. 1 is a cross-sectional view of one embodiment of a forming method of the present invention, FIG. 2 is a cross-sectional view showing a part to be formed and a gear forged and joined, FIG. 3 is a cross-sectional view showing another embodiment of the present invention, FIG. 4 and FIG. 5 are sectional views showing a conventional forging joining method, respectively. 1,11: lower die, 2,12: top mold 3, 13: slide, 4,14: spring P, R: molded gear p 1, p 2: Parts r 1 ~r 4: Parts

───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6,DB名) B21K 25/00──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. 6 , DB name) B21K 25/00

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】上型又は下型の少なくとも一方に設置した
バネを介装したスライド型で被接合部品を支持し、その
周りにセットした被鍛造部品を成形の圧力で塑性変形さ
せて前記被接合部品の縁部を包み込むように一体的に接
合することを特徴とする鍛造接合による成形方法。
1. A part to be joined is supported by a slide mold having a spring interposed in at least one of an upper mold and a lower mold, and the forged part set therearound is plastically deformed by molding pressure. A forming method by forging joining, wherein the joining parts are integrally joined so as to enclose the edge of the joining parts.
JP5427890A 1990-03-06 1990-03-06 Forming method by forging joint Expired - Lifetime JP2817325B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5427890A JP2817325B2 (en) 1990-03-06 1990-03-06 Forming method by forging joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5427890A JP2817325B2 (en) 1990-03-06 1990-03-06 Forming method by forging joint

Publications (2)

Publication Number Publication Date
JPH03258436A JPH03258436A (en) 1991-11-18
JP2817325B2 true JP2817325B2 (en) 1998-10-30

Family

ID=12966103

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5427890A Expired - Lifetime JP2817325B2 (en) 1990-03-06 1990-03-06 Forming method by forging joint

Country Status (1)

Country Link
JP (1) JP2817325B2 (en)

Also Published As

Publication number Publication date
JPH03258436A (en) 1991-11-18

Similar Documents

Publication Publication Date Title
EP0493792A1 (en) Method of manufacturing drive plate
EP0786294B1 (en) Joint structure for metal plates
US7490503B1 (en) Method of producing a rotary member made of a metallic plate
JP2817325B2 (en) Forming method by forging joint
JP2780757B2 (en) Dissimilar material bonding structure and bonding method
JPH0576970A (en) Method for forming shaft hole on pulley made of sheet metal
JP2769732B2 (en) Method of manufacturing boss of rotating body
JPH02298621A (en) Manufacture of stamp muffler
JP2004001003A (en) Method for joining planar member
JPH0459058B2 (en)
JPH03106520A (en) Plastically joining method
JP2002021878A (en) Method of manufacturing retainer for one-way clutch
JP2702530B2 (en) Manufacturing method of sheet metal stamped product
JPH1133637A (en) Forming method by both normal/reverse drawing, equipment therefor and formed product
JPH0138572B2 (en)
JPS6032533B2 (en) How to form a cylindrical boss part on a plate material
JP2769775B2 (en) Forming method of boss of rotating body
JPH0532888B2 (en)
JPH01190532A (en) Manufacture of pressed door panel for automobile
JP3690466B2 (en) Manufacturing method of outer ring member in constant velocity universal shaft joint
JPH03180219A (en) Manufacture of boss part of rotary body
JPH0618671Y2 (en) Synchronous clutch tooth mold
JPH0671117A (en) Oil strainer and manufacture of the same
JPH05237548A (en) Method for press bending composite part
JP2004130344A (en) Blank material having different thickness and press forming method using the same