JPS58141846A - Brazed joint of metallic member - Google Patents

Abstract

PURPOSE:To form adequate gaps brazing with the least possible thermal deformation and to improve workability by providing small holes on the inner side at the joining end edge of members to be brazed,and assembling the members tentatively by arc welding the same to each other through the small holes. CONSTITUTION:Cross members 3, 3 are placed horizontally on the top and bottom of a member 2, and are so disposed that both end parts overlap on the top and bottom surfaces of the member 2. Through-holes - of a small diameter are provided vertically in both end parts of the members 3, 3 to the side inner by a prescribed length from the end edge 3b on the inner side of the egde 3b. Arc welding is executed from the outer side of the holes - to weld 5 - the members 3, 3 and the member 2, thereby assembling both tentatively. There are no traces of welding projecting on the surfaces and the product having good appearance in finish is obtained.

Description

【発明の詳細な説明】 本発明はろう付接合に先立ち被ろう付部材相互を仮付し
、部材間のろう封接合面乞密着保持して仮組着するため
の金属部材のろう付継手に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a brazing joint of metal members for temporarily assembling members to be brazed to each other and maintaining close contact between the brazed joint surfaces of the members prior to brazing joining. It is something.

自動二輪車のリヤフォークや車体フレームの部品接合に
量産性向上のため炉中ろう付が採用されるが、かかるろ
う付に先立ち部品相互の仮組着は従来では第１０図乃至
第１３図の如く行われている。Furnace brazing is used to join parts of rear forks and body frames of motorcycles to improve mass production, but prior to such brazing, the temporary assembly of parts was conventionally done as shown in Figures 10 to 13. It is being done.

第１０図、第１１図はリヤフォークの例で、ピボットパ
イプ５１の軸方向両端部から後方に左右のメンバ５２．
５２χ後方に延設し、メンバ５２゜５２の前部間にクロ
スメンバ５３を横架し、メンバ５２．５２はパイプ材で
あるため、クロスメンバ５３とメンバ５２とはスポット
溶接することが困難で、ためにクロスメンバ５３の両端
縁とメンバ５２とをアーク溶接し」溶接部５４・・・は
複数個所とし、かかる仮組付を行った後メンバ５２．５
３の接合部に線状やペースト状のろう材をセットし、ろ
う付炉内に投入し、炉中ろう付を行っている。10 and 11 show an example of a rear fork, in which left and right members 52.
Since the cross member 53 is installed horizontally between the front parts of the members 52 and 52, and the members 52 and 52 are made of pipe material, it is difficult to spot weld the cross member 53 and the member 52. In order to do this, both ends of the cross member 53 and the member 52 are arc welded, and there are multiple welded parts 54, and after such temporary assembly, the member 52.5 is welded.
A wire or paste brazing material is set at the joint of No. 3, placed in a brazing furnace, and brazed in the furnace.

第１２図は車体フレーム前部の仮組付を示し、ヘッドチ
ューブ６１から後方に延出されるメインバイブロ２、ダ
ウンチューブ６３の前部補強メンバであるヘッドメナノ
ナ−６４乞仮組付する場合、スチフナ−６４の前端縁と
ヘッドチューブ６１の側面を、上端縁とメインバイブロ
２の側面を、又下後端部とダウンチューブ６３の側面と
を各アーク溶接で溶接６５・・・し、仮組付し、上記と
同様に炉中ろう付している。FIG. 12 shows the temporary assembly of the front part of the vehicle body frame, in which the main vibro 2 extending rearward from the head tube 61 and the head menonner 64, which is a front reinforcement member of the down tube 63, are temporarily assembled. Welded the front edge of 64 and the side surface of the head tube 61, the upper edge and the side surface of the main vibro 2, and the lower rear end and the side surface of the down tube 63 by arc welding 65... and temporarily assembled them. , brazing in the furnace in the same way as above.

以上の従来法は、製品として完成したさい、溶接痕が被
ろう何部材端縁に残り、外観性の点で好ましくなく、こ
れを除去しようとした場合、Ｌ型の隅部にビードが残る
ため仮令除去しようとしても除去が難かしい。又ワーク
の板厚が薄いため、端縁に溶接仮付けを行うと溶接熱に
よる歪が発生し、特に端縁で行うとこれの内側が拘束さ
れないためメンバ間の重ね合せ面間に隙間が生じがちで
、安定したろう封隙間が得ら□れないという不都合を伴
い、ために治具等でクランプすることも行われるが、こ
れによる作業性の点で難点があり、量産＝括処理の目的
に適わないこととなる。更にろう廻り性もアークビード
で阻害され、均一な品質を維持することが困難で、又仮
溶接組付作業において溶接仮付の量も作業者側々により
夫々バラつきがあり、溶接位置等の安定性に欠けるきら
いがある。With the above conventional method, when the product is completed, welding marks remain on the edge of the covered wax member, which is unfavorable in terms of appearance, and when attempting to remove it, a bead remains at the corner of the L-shape. Even if you try to remove the provisional order, it will be difficult to remove. In addition, because the workpiece is thin, if welding is performed on the edges, distortion will occur due to the welding heat, and especially when welding is done on the edges, the inside of this will not be constrained, resulting in gaps between the overlapping surfaces of the members. This has the disadvantage of not being able to obtain a stable solder sealing gap, so clamping with a jig etc. is also used, but this has the disadvantage of workability, and the purpose of mass production = batch processing. It will not be suitable for Furthermore, the solderability is also hindered by arc beads, making it difficult to maintain uniform quality.Also, the amount of welding tack during tack welding and assembly work varies depending on the worker, making it difficult to stabilize the welding position, etc. I have a tendency to lack.

本発明は以上を改善すべ（なされたもので、その目的と
する処は、前記リヤフォークや車体フレームのメンバの
如き金属部材相互をろう封接合するようにした構造体に
おいて、一方の被ろう付部材の接合端部内側にアークス
ポット溶接を施して部材相互を仮付し、或は一方の被ろ
う付部材の接合端部内側に予じめ穿孔し、この穿孔部を
介してアーク溶接を施す如（し、熱変形の可及的抑制、
適正なろう封隙間の形成、溶接位置の適正な位置決め、
作業性向上、製品の外観性向上等を企図し得る如（した
金属部材のろう付継手を提供するにある。The present invention has been made to improve the above, and an object of the present invention is to provide a structure in which metal members such as the rear fork and vehicle body frame members are brazed to each other. Perform arc spot welding on the inside of the joint end of the parts to temporarily attach the members to each other, or drill a hole in advance on the inside of the joint end of one of the parts to be brazed, and perform arc welding through this hole. To suppress thermal deformation as much as possible,
Formation of appropriate brazing gap, proper positioning of welding position,
An object of the present invention is to provide a brazing joint for metal members that can improve workability and the appearance of a product.

次に本発明の好適一実施例、を添付図面に従って詳述す
る。Next, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

第１図はリヤフォークに本発明乞適用した実施例で、ビ
ポットパ、イブ１の両端部に後輪支持部材をなす左右の
メンバ２，２を前端部ケ該］くイブに接合して後方に延
出し、メンバ２，２は実施例では角パイプを用いたが丸
パイプでも良い。かかるメンバ２，２の前部上下間にク
ロスメン−１，３乞横架し、クロスメンバ３，３は鋼板
素材のプレス成形品で、重ね合せられて断面箱型をなし
、両端部３ａがメンバ２，２の各上下面にラップする如
り配設される。クロスメンバ３，３０両端部３ａで端縁
３ｂの内側で、端縁３ｂから所定長さ内側には上下に小
径の貫通孔４・・・を設け、実施例では前後方向に三個
所設けた。Fig. 1 shows an embodiment in which the present invention is applied to a rear fork, in which left and right members 2, 2 forming a rear wheel support member are attached to both ends of a bipot pa and an eve 1, and the front end is joined to the eve. In the embodiment, square pipes are used for the extending members 2, 2, but round pipes may also be used. Cross members 1 and 3 are suspended horizontally between the upper and lower front parts of the members 2 and 2, and the cross members 3 and 3 are press-formed products made of steel sheets, and are overlapped to form a box-shaped cross section, with both ends 3a being the members. They are arranged so as to overlap each of the upper and lower surfaces of 2 and 2. On the inside of the edge 3b at both ends 3a of the cross members 3, 30, small-diameter through holes 4 are provided vertically at a predetermined length inward from the edge 3b, and in the embodiment, three holes are provided in the front-rear direction.

以上の孔４・・・の外側からアーク溶接を施こし、メン
バ３，３とメンバ２，２と！溶接５・・・し、双方乞仮
組付し、これを第３図で示した。Arc welding is performed from the outside of the above holes 4... members 3, 3 and members 2, 2! Welding 5... was carried out, and both parts were temporarily assembled, as shown in Fig. 3.

第４図乃至第６図は車体フレームに実施した例で、ヘッ
ドチューブ１１の上部から後方にメインパイプ１２を延
出し、下部から斜め後下方にダウンチューブ１３を延出
し、これらの側面で夫々にかかるようにヘッドスチフナ
−１４を配設する。Figures 4 to 6 show examples in which the main pipe 12 is extended rearward from the upper part of the head tube 11, the down tube 13 is extended diagonally rearward and downward from the lower part, and each side of the head tube 11 is installed on a vehicle body frame. The head stiffener 14 is arranged in this manner.

スチフナ−１４の前端部１４ａ、上端部１４ｂ及び下部
後端部１４ｃには各端縁１４ｄ・・・から離間し、且つ
メンバ１１．１２．１３側面にかかる内側の位置に貫通
孔１５・・・を設ける。この孔１５・・・の外側からア
ーク溶接１７・・・を行ってメンバ１１゜１２．１３と
１４とを仮組付する。ところで本実施例では端縁１４ｄ
の孔１５・・・を有する部分に外方への膨出部１６・・
・を設け、この膨出部１６・・・の略センターに孔１５
・・・を設け、メンバ１１，１２゜１３が丸パイプであ
るためこれの最外側部に孔１５・・・が臨む如＜シ、こ
れによりメンバ１４の内側に孔１５・・・の設けにくい
のを解消し、又孔周辺部のみに膨出部を設け、端縁１４
ｄ’に全面的に延長する必要がないため軽量化の点でも
好ましい。The front end 14a, upper end 14b, and lower rear end 14c of the stiffener 14 are provided with through holes 15, spaced apart from the respective edges 14d, and located on the inner sides of the members 11, 12, and 13. will be established. Arc welding 17 is performed from the outside of the holes 15 to temporarily assemble the members 11, 12, 13 and 14. By the way, in this embodiment, the edge 14d
An outwardly bulging portion 16 is formed in the portion having the hole 15.
・ is provided, and a hole 15 is provided approximately at the center of this bulging portion 16 .
... are provided, and since the members 11, 12, and 13 are round pipes, the holes 15... face the outermost parts of these, which makes it difficult to provide the holes 15... inside the member 14. In addition, a bulge is provided only around the hole, and the edge 14
It is also preferable in terms of weight reduction since there is no need to extend the entire area to d'.

以上において、孔部はメンバ３、或は１４に予じめこれ
のプレス成形工程時にピアス加工し、従って孔部は別工
程を要することなく容易に得られる。本発明は孔部に溶
接材を埋めるように仮付けするため、表面に突出した溶
接痕がなく、製品として外観上仕上りの良いものが得ら
れ、仮置突出したとしてもフラットに整形すべく研磨す
れば良く、作業は容易であり、又従来の如くメンバの外
に溶接材が別途喰み出すことがなく、その分重量軽減が
図れる。In the above, the holes are pierced in advance in the member 3 or 14 during the press molding process, and therefore the holes can be easily obtained without requiring a separate process. Since the present invention temporarily attaches the welding material so as to fill the hole, there are no protruding welding marks on the surface, and a product with a good external appearance can be obtained. The work is easy, and the welding material does not protrude outside the member as in the conventional case, and the weight can be reduced accordingly.

又孔部で予じめ溶接位置が位置決めされ、溶接量も孔部
で規制され、作業がし易く、バラつきのない均質な、品
質に優れたものが得られるとともに、孔部周辺のろう廻
りを良く、安定したろう付を維持することができる。更
に、仮付量も最も少なく、且つ端部から内側に仮付部が
臨むためメンバの剛性を利用することができ、溶接熱に
よる歪みを最少限に抑制し、適正で安定なろう封隙間を
形成、維持することができ、安定したろう付を行うこと
ができる。そして金属部材の形状、組付状態によっては
クランプ及び治具を不要とすることが可能であり、作業
性同上、省力化をも図ることができる。In addition, the welding position is determined in advance at the hole, and the amount of welding is regulated at the hole, making it easier to work and producing uniform, high-quality products. Good and stable brazing can be maintained. Furthermore, the amount of tacking is the smallest, and since the tacking part faces inward from the end, the rigidity of the member can be utilized, minimizing distortion due to welding heat, and creating an appropriate and stable brazing gap. It can be formed and maintained, and stable brazing can be performed. Depending on the shape of the metal member and the assembled state, it is possible to eliminate the need for clamps and jigs, and it is possible to improve workability and save labor.

本発明は以上の如き利点を有する。The present invention has the advantages as described above.

第７図及び第８図はアークスポット溶接にょる継手を示
し、実施例はリヤフォークのみを示したが、車体フレー
ムにも同様に実施することができる。7 and 8 show joints made by arc spot welding, and although only a rear fork is shown in the embodiment, the same can be applied to a vehicle body frame.

２１はピボットパイプ、２２．２２は後輪支持メンバを
示し、これの前部間にクロスメンバ２３を横架し、これ
の端縁２３ｂの内側に実施例では前後に三個所アークス
ポット溶接２４・・・を行い、端縁内側でメンバ２３と
メンバ２２．２：ｌ’Ｙｉ合する。アークスポット溶接
はアークを利用してメンバ２３に小孔をあけ、これに溶
接棒からの溶接金属を注ぎ込んで溶接するため、上記し
た孔は不要となり、尚且つ上記と同様の効果を得ること
ができる。Reference numeral 21 indicates a pivot pipe, and 22 and 22 indicate a rear wheel support member. A cross member 23 is horizontally suspended between the front parts of the pivot pipe, and three arc spot welds 24 and 24 are welded on the inside of the edge 23b at the front and rear. ..., and member 23 and member 22.2:l'Yi are joined on the inside of the edge. In arc spot welding, a small hole is made in the member 23 using an arc, and welding metal from a welding rod is poured into the hole for welding, so the hole described above is not needed and the same effect as above can be obtained. can.

以上本発明の実施例を詳述したが、実施の対象はリヤフ
ォークや車体フレームに限られず任意である。Although the embodiments of the present invention have been described above in detail, the present invention is not limited to rear forks or vehicle body frames, but may be applied to any desired object.

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

図面は本発明の一実施例を示すもので、第１図はリヤフ
ォークの平面図、第・２図は第１図２−２線断面図、第
３図は同溶接後の図、第４図は車体フレームの側面図、
第５図は第４図５−５線断面図、第６図は溶接後の図、
第７図はアークスポット継手による仮接合のリヤフォー
クの平面図、第８図は第７図８−８線断面図、第９図は
溶接部の拡大断面図、第１０図は従来継手を用いたりャ
フォークの平面図、第１１図は第１０図１１−１１線断
面図、第１２図は同車体フレームの側面図、第１３図は
第１２図１３−１３線断面図である。 尚図面中２．３．　１１．１２．１３．１４，２２゜２
３は被ろう付部材、４，１５は小孔、５，１７はアーク
溶接部、２４はアークスポット溶接部である。 特許出願人　本田技研工業株式会社 代理人　弁理士　　　下　　１）　容一部同　　弁理士
　　　大　　橋　　邦　　彦２２−The drawings show one embodiment of the present invention, and Fig. 1 is a plan view of the rear fork, Figs. 2 and 2 are sectional views taken along line 2-2 in Fig. The figure is a side view of the vehicle body frame.
Figure 5 is a sectional view taken along the line 5-5 in Figure 4, Figure 6 is a view after welding,
Figure 7 is a plan view of the rear fork temporarily joined using an arc spot joint, Figure 8 is a cross-sectional view taken along the line 8-8 in Figure 7, Figure 9 is an enlarged cross-sectional view of the welded part, and Figure 10 is a rear fork using a conventional joint. 11 is a sectional view taken along the line 11-11 in FIG. 10, FIG. 12 is a side view of the vehicle body frame, and FIG. 13 is a sectional view taken along the line 13-13 in FIG. 12. In addition, 2.3 in the drawing. 11.12.13.14, 22゜2
3 is a member to be brazed, 4 and 15 are small holes, 5 and 17 are arc welded parts, and 24 is an arc spot welded part. Patent Applicant Honda Motor Co., Ltd. Agent Patent Attorney 2 1) Yobetsu Patent Attorney Kunihiko Ohashi 22-

Claims (4)

【特許請求の範囲】[Claims] （１）金属部材相互をろう付接合するようにした構造体
において、一方の被ろう付部材の接合端縁の内側に小孔
を設け、該小孔乞介して被ろう付部材相互をアーク溶接
により仮組付するようにしたこと乞特徴とする金属部材
のろう付継手。(1) In a structure in which metal members are joined together by brazing, a small hole is provided inside the joining edge of one of the members to be brazed, and the members to be brazed are arc welded together through the small hole. A brazing joint for metal members, which is characterized in that it can be temporarily assembled by using a metal member. （２）　　前記被ろう付部材の一方はノくイブ材である
特許請求の範囲第１項の金属部材のろう付継手。(2) The brazed joint for metal members according to claim 1, wherein one of the members to be brazed is a metal pipe material. （３）金属部材相互乞ろ５封接合するようにした構造体
において、−万の被ろう付部材の接合端縁の内側にアー
クスポット溶接を施して／」−子りをアークで形成しつ
つ被ろう付部材相互を溶接仮組付するようにしたことを
特徴とする金属部材のろう付継手。(3) In a structure in which metal members are joined together in a sealed manner, arc spot welding is performed on the inside edges of the joining edges of the members to be brazed, while forming a weld with an arc. A brazing joint for metal members, characterized in that the members to be brazed are temporarily assembled by welding. （４）前記被ろう付部材の一方はノ（イブ材である特許
請求の範囲第３項の金属部材のろう付継手。(4) The brazing joint for metal members according to claim 3, wherein one of the members to be brazed is a metal member.