JPS6311110B2 - - Google Patents
Info
- Publication number
- JPS6311110B2 JPS6311110B2 JP15961281A JP15961281A JPS6311110B2 JP S6311110 B2 JPS6311110 B2 JP S6311110B2 JP 15961281 A JP15961281 A JP 15961281A JP 15961281 A JP15961281 A JP 15961281A JP S6311110 B2 JPS6311110 B2 JP S6311110B2
- Authority
- JP
- Japan
- Prior art keywords
- reinforcement
- ring
- bolt
- mounting bolt
- welding
- 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
Links
- 238000003466 welding Methods 0.000 claims description 23
- 230000002787 reinforcement Effects 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 4
- 238000005242 forging Methods 0.000 claims 1
- 238000003825 pressing Methods 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 102200029231 rs11551768 Human genes 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/002—Resistance welding; Severing by resistance heating specially adapted for particular articles or work
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
Description
【発明の詳細な説明】
本発明は負圧式ブースタにおけるリンフオース
の固定方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for fixing a rinsing force in a negative pressure booster.
軽量化負圧式ブースタのボデイに取付ボルトを
取付けるには、リンフオース（補強板）を介して
ボルトを取付け、ボデイ、リンフオース及びボル
トの三者をプロジエクシヨン溶接により同時に溶
接し、その後ボルトの周囲（２個所）をスポツト
溶接するのが普通である。プロジエクシヨン溶接
は、リンフオースとボルト頭部の接面、リンフオ
ースとボルト頭部の接面、リンフオースとボデイ
の接面にリング状の突起を設けておき、三者を加
圧しながら電流を流すと前記突起が溶けてその部
分をシール密着させる溶接法である。 To attach mounting bolts to the body of a lightweight negative pressure booster, attach the bolts through reinforcement plates, weld the body, reinforcement plates, and bolts together using projection welding, and then weld the bolts around the bolts ( It is common practice to spot weld the two parts. In projection welding, ring-shaped protrusions are provided on the contact surfaces of the reinforcement bolt head and the bolt head, the contact surface of the reinforcement bolt and the bolt head, and the contact surface of the reinforcement bolt and the body, and current is applied while pressurizing the three parts. This is a welding method in which the protrusion is melted and the part is sealed tightly.
ところが軽量化負圧式ブースタのボデイの板厚
は約１mmと薄いため、前記従来構造において耐圧
試験を行なうと、ボルト頭部周囲のボデイに亀裂
が生じて破損が生じる虞れがある。 However, since the body of the lightweight negative pressure booster is as thin as about 1 mm, if a pressure test is conducted on the conventional structure, there is a risk that the body around the bolt head will crack and break.
第１図は従来提案されているリンフオースの固
定方法を示す断面図で、頭部１ａの座面内周部に
軸部１ｃと同心のリング状の突起１ｂを設けた取
付用ボルト１の軸部１ｃを、片面に電気絶縁層２
を形成したリンフオース３の孔３ａとボデイ４の
孔４ａとに挿入し、取付用ボルト１の突起１ｂを
ボデイ４の内面に接触させた状態で、取付用ボル
ト１とボデイ４とをプロジエクシヨン溶接する方
法である。 FIG. 1 is a cross-sectional view showing a conventionally proposed method of fixing a reinforcement bolt. The shaft of a mounting bolt 1 has a ring-shaped protrusion 1b concentric with the shaft 1c on the inner circumference of the seat surface of the head 1a. 1c, electrically insulating layer 2 on one side
is inserted into the hole 3a of the reinforcement 3 and the hole 4a of the body 4, and with the protrusion 1b of the mounting bolt 1 in contact with the inner surface of the body 4, the mounting bolt 1 and the body 4 are screwed together. This is a welding method.
しかしながらこの方法は、取付用ボルト１とボ
デイ４とをプロジエクシヨン溶接する工程と、こ
の工程以前にリンフオース３の片面に電気絶縁層
２を形成する工程が必要であるため、工数が多く
なるという問題があつた。 However, this method requires a process of projection welding the mounting bolt 1 and the body 4, and a process of forming an electrically insulating layer 2 on one side of the support 3 before this process, which increases the number of man-hours. There was a problem.
本発明は前記従来の欠点を解消するために提案
されたもので、ボルトのプロジエクシヨン径より
外周部にボデイのプロジエクシヨン部分を設ける
ことにより、確実な溶接を確保することができる
負圧式ブースタにおけるリンフオースの固定方法
を提供せんとするものである。 The present invention was proposed in order to eliminate the above-mentioned conventional drawbacks, and is a negative pressure type that can ensure reliable welding by providing the protrusion part of the body on the outer periphery of the bolt. The present invention aims to provide a method for fixing phosphorous in a booster.
以下本発明の実施例を図面について説明する
と、第２図は本発明の方法を適用したブレーキブ
ースタの側断面図であり、５はプレス加工により
形成された金属製のブレーキブースタのボデイ
で、金属製の取付用ボルト６が、リンフオース７
を介して溶接により取付けられている。８はボデ
イ５と共にブレーキブースタのケーシングを構成
する反対面側のボデイで、ボデイ５，８で構成す
るブレーキブースタの室内は、合成樹脂製パワー
ピストン９と、ダイヤフラム１０によつて常時負
圧の定圧室１１と変圧室１２とに分割されてい
る。 Embodiments of the present invention will be explained below with reference to the drawings. Fig. 2 is a side sectional view of a brake booster to which the method of the present invention is applied, and 5 is a body of the brake booster made of metal formed by press working. The mounting bolt 6 made of
It is attached by welding through. Reference numeral 8 denotes a body on the opposite side that constitutes the casing of the brake booster together with the body 5. The interior of the brake booster, which is composed of the bodies 5 and 8, is always maintained at a constant negative pressure by a synthetic resin power piston 9 and a diaphragm 10. It is divided into a chamber 11 and a variable pressure chamber 12.
変圧室１２はプツシユロツド１３により開閉作
動するコントロールバルブ１４を介して、定圧室
１１又は大気に選択的に連通させられる。またボ
デイ８は取付ボルト１５によつて図示しない車体
に固定される。一方前記取付用ボルト６は図示し
ないマスタシリンダに結合され、同マスタシリン
ダの図示しないピストンは、パワーピストン９に
よりプツシユロツド１６を介して作動されるよう
になつている。 The variable pressure chamber 12 is selectively communicated with the constant pressure chamber 11 or the atmosphere via a control valve 14 which is opened and closed by a push rod 13. Further, the body 8 is fixed to a vehicle body (not shown) by a mounting bolt 15. On the other hand, the mounting bolt 6 is connected to a master cylinder (not shown), and a piston (not shown) of the master cylinder is actuated by a power piston 9 via a push rod 16.
第３図は第２図のリンフオース取付部の詳細断
面図で、リンフオース７はプロジエクシヨン溶接
により、鍛造で形成された取付用ボルト６の頭部
６ａと溶接されると同時に、リンフオース７とボ
デイ５を溶接することにより三者は一体に固定さ
れる。なお、第３図はプロジエクシヨン溶接をす
る直前の状態を示す。 FIG. 3 is a detailed cross-sectional view of the attachment part of the reinforcement aust shown in FIG. By welding 5, the three parts are fixed together. Note that FIG. 3 shows the state immediately before projection welding.
第３図に示す如くプロジエクシヨン溶接をする
以前には、取付用ボルト６の頭部６ａの座面に
は、軸部６ｂと同心のリング状突起６ｃが存在
し、ボデイ５の内面にはリング状突起６ｃの外側
に、前記軸部６ｂを通す孔５ａと同心のリング状
突起５ｂが存在する。また突起５ｂの外方数個所
に、等間隔で外方に突部５ｃを同じ高さのまま延
設して、更に剛性を大にするようにしてもよい
（第４図、第５図）。 As shown in FIG. 3, before projection welding is performed, there is a ring-shaped projection 6c on the seat surface of the head 6a of the mounting bolt 6, which is concentric with the shaft portion 6b, and on the inner surface of the body 5. On the outside of the ring-shaped projection 6c, there is a ring-shaped projection 5b that is concentric with the hole 5a through which the shaft portion 6b passes. Further, the rigidity may be further increased by extending protrusions 5c outward at equal intervals at several locations outside the protrusion 5b while keeping the same height (FIGS. 4 and 5). .
さて第３図の状態において、図示しない上下の
電極で、ボデー５、リンフオース７、取付用ボル
ト６の頭部６ａを挾着加圧して電極間に大電流を
流すと、リング状突起６ｃとリンフオース７の接
触部、ボデイ５のリング状突起５ｂとリンフオー
ス７の接触部が溶けて、取付用ボルト６の頭部６
ａとリンフオース７が溶接されると同時に、ボデ
イ５とリンフオース７とが溶接される。なお、取
付用ボルト６が複数本あるため、プロジエクシヨ
ン溶接をする個所も複数となるが、この複数個所
を同時に溶接してもよく、また１個所毎に行なつ
てもよい。 Now, in the state shown in FIG. 3, when the body 5, the reinforcement auger 7, and the head 6a of the mounting bolt 6 are clamped and pressurized by the upper and lower electrodes (not shown) and a large current is passed between the electrodes, the ring-shaped protrusion 6c and the reinforcement 7, the contact portion between the ring-shaped protrusion 5b of the body 5 and the link force 7 melts, and the head 6 of the mounting bolt 6 melts.
At the same time that a and the reinforcement aus 7 are welded, the body 5 and the reinforcement aus 7 are welded together. Note that since there are a plurality of mounting bolts 6, there are a plurality of locations where projection welding is performed, but these multiple locations may be welded at the same time, or may be welded one location at a time.
以下更に下記具体例により本発明を詳述する。 Hereinafter, the present invention will be further explained in detail with reference to the following specific examples.
実施例
材 質
ボデイ５：JISのSPCE
取付用ボルト６：JISのSIOC又はS15C相当
リンフオース７：JISのSPCC
各部寸法
t1：1.0mm
t2：2.0mm
t3：3.0mm
h1：0.5mm
h2：0.9mm
θ：90゜
d1：14mm
d2：18mm
d3：17mm
d4：19mm
溶接条件
電流：30000A
通電時間：12パルス（１パルスは0.33秒）
加圧力：900Kg
前記の材質、寸法、溶接条件により製造した場
合の溶接状況は、リンフオース７と、ボデー５の
肉厚比が大きいにも拘らず、完全な溶着となり、
第２図の如きブレーキブースタの９インチサイズ
のものは、300Kgの出力負荷を繰返えし付与する
耐久テストにおいて、繰返えし回数が200万回に
達しても異常は何等発生せず、好結果が得られ
た。Example materials Body 5: JIS SPCE Mounting bolt 6: JIS SIOC or S15C equivalent reinforcement 7: JIS SPCC Dimensions of each part t 1 : 1.0mm t 2 : 2.0mm t 3 : 3.0mm h 1 : 0.5mm h 2 : 0.9mm θ: 90゜d 1 : 14mm d 2 : 18mm d 3 : 17mm d 4 : 19mm Welding conditions Current: 30000A Current application time: 12 pulses (1 pulse is 0.33 seconds) Pressure force: 900Kg Above materials and dimensions , the welding situation when manufactured under the welding conditions was complete welding despite the large wall thickness ratio between the reinforcement 7 and the body 5.
The 9-inch size brake booster shown in Figure 2 was subjected to an endurance test in which an output load of 300 kg was repeatedly applied, and no abnormality occurred even after the number of repetitions reached 2 million times. Good results were obtained.
以上詳細に説明した如く本発明は、ボデイ内面
のリング状突起は、取付用ボルトの頭部座面のリ
ング状突起の外側に形成してあるので、プロジエ
クシヨン溶接の電極による荷重が同じでも、荷重
を受ける面積が大きくなつているため剛性が大き
く、ボデイの変形するのが防止できる。従つて完
全な溶接ができ、プロジエクシヨン溶接の強度を
確保できる。 As explained in detail above, in the present invention, the ring-shaped protrusion on the inner surface of the body is formed on the outside of the ring-shaped protrusion on the head seat of the mounting bolt, so even if the load applied by the electrode during projection welding is the same, Since the area that receives the load is large, the rigidity is large and the deformation of the body can be prevented. Therefore, complete welding can be achieved and the strength of projection welding can be ensured.
第１図は従来のリンフオースのプロジエクシヨ
ン溶接により固定状態にする場合を説明する断面
図、第２図は本発明の方法を実施したブレーキブ
ースタの側断面図、第３図は第２図におけるリン
フオース取付部の溶接前の状態を示す詳細断面
図、第４図は第３図と異なる実施例の溶接前の状
態を示す断面図、第５図は第４図のＡ〜Ａ断面図
である。
図の主要部分の説明、５……ボデイ、５ａ……
孔、５ｂ……リング状突起、６……取付用ボル
ト、６ａ……頭部、６ｂ……軸部、６ｃ……リン
グ状突起、７……リンフオース。
Fig. 1 is a cross-sectional view illustrating a case in which a conventional reinforcement is fixed by projection welding, Fig. 2 is a side sectional view of a brake booster in which the method of the present invention is implemented, and Fig. 3 is a cross-sectional view of the brake booster shown in Fig. 2. A detailed cross-sectional view showing the state before welding of the reinforcement austration part, FIG. 4 is a cross-sectional view showing the state before welding of an embodiment different from FIG. 3, and FIG. 5 is a cross-sectional view from A to A in FIG. 4. . Explanation of the main parts of the diagram, 5...Body, 5a...
Hole, 5b...Ring-shaped protrusion, 6...Mounting bolt, 6a...Head, 6b...Shaft, 6c...Ring-shaped protrusion, 7...Ring force.
Claims (1)
と、該ボデイ内に位置する頭部及びボデイ外へ突
出する軸部を有し、かつ頭部が鍛造で形成された
金属製取付用ボルトと、該ボルトの頭部座面と前
記ボデイの内面間に介在する金属製のリンフオー
スとを備え、これらをプロジエクシヨン溶接によ
り一体に固定するに当り、前記取付用ボルト頭部
の鍛造工程で頭部座面に軸部と同心のリング状の
突起を形成すると共に、前記ボデイのプレス加工
工程でボデイの内面に、前記取付用ボルトの軸部
を貫通する孔と同心で、前記リング状突起の外側
にリング状突起を形成し、前記ボデイ、リンフオ
ース及び取付用ボルトを組付けた状態でプロジエ
クシヨン溶接により、これら三者を固定すること
を特徴とする負圧式ブースタにおけるリンフオー
スの固定方法。1. A metal mounting bolt, which has a metal body formed by press working, a head located within the body, and a shaft portion protruding outside the body, and whose head is formed by forging, and the bolt. and a metal reinforcing bolt interposed between the head bearing surface of the body and the inner surface of the body, and when these are fixed together by projection welding, the head bearing surface is A ring-shaped protrusion is formed on the inner surface of the body during the pressing process of the body, and a ring is formed on the outside of the ring-shaped protrusion, concentric with the hole passing through the shaft of the mounting bolt. A method for fixing a reinforcement in a negative pressure booster, comprising forming a shaped projection, and fixing the body, reinforcement, and mounting bolt by projection welding in a state where these three parts are assembled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15961281A JPS5861979A (en) | 1981-10-07 | 1981-10-07 | Fixing method for reinforce in negative type booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15961281A JPS5861979A (en) | 1981-10-07 | 1981-10-07 | Fixing method for reinforce in negative type booster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5861979A JPS5861979A (en) | 1983-04-13 |
| JPS6311110B2 true JPS6311110B2 (en) | 1988-03-11 |
Family
ID=15697510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15961281A Granted JPS5861979A (en) | 1981-10-07 | 1981-10-07 | Fixing method for reinforce in negative type booster |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5861979A (en) |
-
1981
- 1981-10-07 JP JP15961281A patent/JPS5861979A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5861979A (en) | 1983-04-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4409460A (en) | Method of manufacturing a vacuum booster housing | |
| US4518204A (en) | Wheel for a vehicle | |
| US4353291A (en) | Braking booster servo unit having a fixing bracing member | |
| JPS6311009Y2 (en) | ||
| JPS6311110B2 (en) | ||
| US4726189A (en) | Brake booster | |
| JPS6023236Y2 (en) | Negative pressure brake booster | |
| JPS5861980A (en) | Fixing method for reinforce in negative pressure type booster | |
| JPS6021328Y2 (en) | Brake booster reinforcement plate device | |
| JP4225396B2 (en) | Manufacturing method of accumulator | |
| JPH07269649A (en) | Rubber vibration insulator | |
| JP2844809B2 (en) | Brake booster | |
| JPS5865585A (en) | Fixing method for reinforce in negative pressure type booster | |
| JPS5939230Y2 (en) | Mounting structure of vibration damping composite metal plate | |
| GB2085989A (en) | Brake booster | |
| JPH0715671Y2 (en) | Welding axis | |
| JPS6017402Y2 (en) | Negative pressure booster | |
| JPS6365543B2 (en) | ||
| JP2534607Y2 (en) | Adjuster body for hydraulic valve brush adjuster | |
| JPH074409A (en) | Fixed part for sheet | |
| JPH0632863Y2 (en) | Outer clinch type double aerosol container | |
| JPS6240848Y2 (en) | ||
| JPH0627513Y2 (en) | Operation wire protective cover mounting structure | |
| JPH0215643A (en) | Semiconductor device | |
| JPH05381A (en) | Fitting method for screen part |