JPH01316595A - Manufacture of fitting with flange - Google Patents
Manufacture of fitting with flangeInfo
- Publication number
- JPH01316595A JPH01316595A JP63145897A JP14589788A JPH01316595A JP H01316595 A JPH01316595 A JP H01316595A JP 63145897 A JP63145897 A JP 63145897A JP 14589788 A JP14589788 A JP 14589788A JP H01316595 A JPH01316595 A JP H01316595A
- Authority
- JP
- Japan
- Prior art keywords
- flange
- tube
- tube body
- tip
- insertion hole
- 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 5
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 5
- 238000003780 insertion Methods 0.000 abstract description 25
- 230000037431 insertion Effects 0.000 abstract description 25
- 238000003825 pressing Methods 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000000465 moulding Methods 0.000 description 8
- 230000013011 mating Effects 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 241000219122 Cucurbita Species 0.000 description 1
- 235000009852 Cucurbita pepo Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Branch Pipes, Bends, And The Like (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は車両用の空調装置またはその他の圧力流体利
用機器の配管に用いられるフランジ付チューブ継手の製
造法に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for manufacturing a flanged tube joint used for piping of a vehicle air conditioner or other pressure fluid utilization equipment.
（従来の技術）
車両用の空調装置または各種の油圧機器では、圧力流体
給送のために、第５図イのように先端部に適宜形状のフ
ランジ２を装着したアルミニウムなどの金属製チューブ
継手１の後端部にゴムホースｈをソケット金具Ｓを介し
て連結し、機器側相手部材ｍに継手先端のパイロット部
１ａを気密に挿入すると共にフランジ２をねじ止めして
配管するようにしている。(Prior Art) In vehicle air conditioners or various hydraulic equipment, a metal tube joint made of aluminum or the like is fitted with an appropriately shaped flange 2 at its tip, as shown in Fig. 5A, for pressure fluid supply. A rubber hose h is connected to the rear end of the piping 1 via a socket fitting S, and a pilot portion 1a at the tip of the joint is airtightly inserted into a mating member m on the equipment side, and a flange 2 is screwed to connect the piping.
そして、チューブ継手ＩＫフランジ２を装着するに当た
っては、同図口のように、フランジ２にチューブより若
干太き目のチューブ挿通孔２ａとねじ挿通孔２ｂを設け
ると共にチューブ挿通孔２ａの前端に大径の円形凹所２
ｃを形成し、フランジ２のチューブ挿通孔２ａにゴムホ
ース結合前のチューブ継手１を前方に一定の長さ突出さ
せて挿通し、そのチューブ継手１をプレス機のクランプ
治具Ｃで支持し、フランジ２から突出している先端部分
を、フランジ２の円形凹所２ｃと同じ大きさの円形凹所
Ｄ１とチューブとほぼ同径のほぞ孔Ｄ２を備えた成形金
型りにより押圧し、イ図のようにチューブ継手ｌの先端
部にパイロット部１ａと、二つ折シになって凹所内に広
がるバルジ部１ｂｔ−形成し、それと同時にチューブ自
体のふくらみにより挿通孔２ｍの内面に圧接させてフラ
ンジ２を装着している。When installing the tube joint IK flange 2, as shown in the figure, a tube insertion hole 2a slightly thicker than the tube and a screw insertion hole 2b are provided in the flange 2, and a large diameter tube insertion hole 2a is provided at the front end of the tube insertion hole 2a. diameter circular recess 2
c, and insert the tube fitting 1 before the rubber hose is connected into the tube insertion hole 2a of the flange 2 so as to protrude a certain length forward.The tube fitting 1 is supported by the clamp jig C of the press machine, and the flange 2 is inserted into the tube insertion hole 2a. 2 is pressed by a molding die having a circular recess D1 of the same size as the circular recess 2c of the flange 2 and a mortise D2 of approximately the same diameter as the tube, as shown in Figure A. At the tip of the tube joint l, a pilot part 1a and a bulge part 1bt which is folded in half and spreads into the recess are formed, and at the same time, the flange 2 is attached by pressing it against the inner surface of the insertion hole 2m by the bulge of the tube itself. are doing.
（発明が解決しようとする問題点）
上記の従来技術では、継手１にフランジ２を装着するに
当たシ、チューブ先端部の加圧成形に基づくふくらみに
よりフランジ２の挿通孔２ａの内面に圧接させてフラン
ジ２を装着させて−るが、チューブ挿通孔２ａの内面は
平滑であるために、固着力が充分でなく、運搬などの取
扱い中に小さなｍ’ｓｔ−受けただけで回転してしまい
、不良品となり、また、継手先端のパイロット部１ａと
バルジ部１ｂの成形に当たシ、チューブ先端部を成形金
型りのほぞ孔Ｄ２で掴持する状態で抑圧加工するので、
パイロット部１ａの表面に傷がつき易く、ここに嵌め込
むＯリングを損傷する恐れがある。(Problems to be Solved by the Invention) In the above-mentioned conventional technology, when attaching the flange 2 to the joint 1, the tube tip is press-fitted to the inner surface of the insertion hole 2a of the flange 2 by the bulge caused by pressure forming. However, since the inner surface of the tube insertion hole 2a is smooth, the fixing force is not sufficient, and the tube may rotate even if subjected to a small amount of stress during transportation or other handling. In addition, when molding the pilot part 1a and bulge part 1b at the tip of the joint, the tube tip is held in the mortise D2 of the molding die and pressed.
The surface of the pilot part 1a is easily scratched, and there is a possibility that the O-ring fitted therein may be damaged.
そこで、この発明はフランジを回転しないように強固に
装着すると共にパイロット部表面を傷付けないようにす
ることを目的とする。Therefore, an object of the present invention is to firmly mount the flange so that it does not rotate and to prevent the surface of the pilot portion from being damaged.
（問題点を解決するための手段）
上記目的のもとＫこの発明は、フランジ付チユ一ブ継手
の製造法として、ホース部材の端部に固着されるチュー
ブ本体の先端部を本体より小径に形成し、上記先端部に
、固定用のフランジを内径が先端部と本体の外径の中間
の大きさでその内面に多数の細みぞを形成したチューブ
挿通孔を介して嵌挿し、次いでチューブ先端部を本体と
の境界部が先細シの円錐伏をなすように絞り加工すると
同時に上記フランジを本体上に圧入し、その後、チュー
ブ先端部をその表面を掴持することなく軸方向に加圧し
て放射状に膨出するバルジ部とパイロット部を形成し、
更にフランジの後方から上記細みぞの周辺部をチューブ
本体に向けてかしめ付けることを特徴としている。(Means for Solving the Problems) To achieve the above object, the present invention provides a method for manufacturing a flanged tube joint in which the tip of a tube body fixed to the end of a hose member is made smaller in diameter than the main body. A fixing flange is inserted into the tip of the tube through a tube insertion hole whose inner diameter is intermediate between the outer diameter of the tip and the main body, and which has many narrow grooves on its inner surface. At the same time, the flange is press-fitted onto the main body, and then the tip of the tube is pressurized in the axial direction without grasping its surface. Forms a radially bulge part and a pilot part,
Furthermore, the periphery of the narrow groove is caulked toward the tube body from the rear of the flange.
（実施例）
以下、図面を参照してこの発明の実施例について説明す
る。(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.
第１図の１１は後端部が配管用ゴムホースｈの端部にソ
ケット金具Ｓを介して結合するようＫなされたアルミニ
ウムなどの金具製のチューブ本体で、先端部１１ａは切
削、絞９加工などにより取付は用フランジ１２の幅より
長い範囲にわたって外径ｄ１が本体部の外径ｄｏより小
さく形成されており、また、第２図イ、口における１２
はほぼひようたん形をした取付は用のフランジで、前端
部が大径の円形凹所１２Ｃをなすチューブ挿通孔１２ａ
と上方のねじ挿通孔１２１）を備えていて、チューブ挿
通孔１２ａの内径ｄはチューブ先端部１１ａの外径ｄ、
と本体部の外径ｄ０との中間の大きさに形成されると
共に挿通孔１２ａの内面にはスプライン加工による軸線
に滑った細みぞ１２ｄが多数設けられている。Reference numeral 11 in Fig. 1 is a tube body made of a metal fitting such as aluminum whose rear end is connected to the end of a rubber hose h for piping via a socket fitting S, and the tip 11a is cut, drawn, etc. For installation, the outer diameter d1 is smaller than the outer diameter do of the main body over a range longer than the width of the flange 12, and the 12
is a mounting flange that is almost in the shape of a gourd, and has a tube insertion hole 12a with a large diameter circular recess 12C at the front end.
and an upper screw insertion hole 121), and the inner diameter d of the tube insertion hole 12a is the outer diameter d of the tube tip 11a,
The insertion hole 12a is formed to have a size intermediate between the outer diameter d0 and the outer diameter d0 of the main body, and the inner surface of the insertion hole 12a is provided with a large number of narrow grooves 12d which are splined and slid along the axis.
しかして、第３図イのようにチューブ本体１１の先端部
１１ａにフランジ１２、チューブ挿通孔１２ ”を嵌挿
した状態で、チューブ本体１１の中央部をプレス機のク
ランプ治具Ｃで間持し、その側方からチューブ先端部１
１ａの外径ｄ。Then, with the flange 12 and the tube insertion hole 12'' fitted into the tip 11a of the tube body 11 as shown in FIG. Then, remove the tube tip 1 from the side.
Outer diameter d of 1a.
より若干小径で機器側相手部材の嵌挿孔の内径にほぼ等
しい絞り孔１３ｂと端末フレア部１３ａを備えた第１成
形金型り、によりチューブ先端部１１ａおよびフランジ
１２をクランプ治具ＣＫ向って押圧し、成形金型Ｄ１の
絞υ孔１３ｂとフレア部１２２とで、第３図口の右側に
示すようにチューブ先端部１１ａと本体との境界部が先
細り９円錐伏を呈するように絞シ込むと同時にフランジ
１２の挿通孔１２ａをこれより大径のチューブ本体上に
圧入する。The tube tip 11a and the flange 12 are moved toward the clamp jig CK by a first molding die having a diameter slightly smaller than that of the first molding die and having an aperture hole 13b that is approximately equal to the inner diameter of the insertion hole of the mating member on the equipment side and a flared end portion 13a. By pressing, the drawing hole 13b of the molding die D1 and the flare part 122 are used to draw the tube so that the boundary between the tube tip 11a and the main body tapers into a 9-cone shape, as shown on the right side of the opening in FIG. At the same time, the insertion hole 12a of the flange 12 is press-fitted onto the tube body having a larger diameter.
その際には、チューブ本体前端の一部がフランジ１２の
チューブ挿通孔１２ａに形成されている多数の細みぞ１
２ｄ中にくい込むことになる。At that time, a part of the front end of the tube body has many narrow grooves 1 formed in the tube insertion hole 12a of the flange 12.
It will be embedded in 2d.
次いで、上記のように絞り加工された先端部１１ａを第
２図口の左側に示すような先端部１１ａより犬径で短か
なほぞ孔１４ｂとフランジ１２の円形凹所１２Ｃと同径
の円形凹所１４ａを備えた第２成形金型Ｄ！により、軸
線方向に強圧して本体との境界部を第３図へのように二
つ重ねに折り曲げ、放射方向に膨出するバルジ部１１ｂ
とパイロット部１１ａ′を形成する。Next, the tip portion 11a drawn as described above is inserted into a mortise hole 14b which is shorter in dog diameter than the tip portion 11a and a circular recess having the same diameter as the circular recess 12C of the flange 12, as shown on the left side of the opening in FIG. Second molding die D with location 14a! As a result, the bulge portion 11b is strongly pressed in the axial direction and the boundary portion with the main body is folded in two as shown in FIG.
and a pilot portion 11a'.
その際、パイロット部１１ａ′の長さは金型のほぞ孔１
４ｂの深さで規制されるが、はぞ孔１４ｂに掴持されず
、平滑に保たれる。At that time, the length of the pilot part 11a' is the length of the mortise 1 of the mold.
Although it is regulated by the depth of 4b, it is not gripped by the borehole 14b and is kept smooth.
その後に、第３図ハで鎖線で示すようにパイロット部１
１ａ′を受は治具Ｅで受は止める一方、チューブ継手１
１上にかしめダイスＤ、を嵌挿し、その前面に設けられ
ている複数の突条１５（正面弧状をなしている）によっ
てフランジ１２の後方から細みぞ周辺部を加圧して細み
ぞ１２ｄとチューブ本体１１との間に残っている隙間を
埋めるようにかしめ付ける。After that, as shown by the chain line in FIG.
1a' is fixed with jig E, while tube fitting 1
A caulking die D is inserted onto the flange 12, and the peripheral part of the narrow groove is pressurized from the rear of the flange 12 by a plurality of protrusions 15 (formed in a front arc shape) provided on the front surface of the caulking die D, thereby forming the narrow groove 12d and the tube. Caulk it to fill the gap remaining between it and the main body 11.
かくて、フランジ１２が第４図イ、口のようにチューブ
本体１１上に装着される。１５′は突条１５によるかし
め跡である。Thus, the flange 12 is mounted on the tube body 11 as shown in FIG. 4A. 15' is a caulking mark caused by the protrusion 15.
その使用に当たっては、第５図イにみられるようにパイ
ロット部上ＫＯリングを嵌挿した上で、これを相手部材
の嵌挿孔に嵌め込む一方、フランジを相手部材にねじ止
めする。In its use, as shown in FIG. 5A, the KO ring on the pilot part is fitted and inserted into the fitting hole of the mating member, while the flange is screwed to the mating member.
（発明の効果）
以上のようにこの発明では、機器固定用のフランジのチ
ューブ挿通孔を、チューブ先端部の外径より大きく、チ
ューブ本体の外径より小さくすると共にその内面に多数
の細みぞを形成して、チューブ本体上に圧入する一方、
フランジの後方から細みぞの周辺部をチューブ本体に向
けてかしめ付けるようにしたので、チューブ本体の前端
部の一部がフランジの細みぞに〈騒込んで締結され、衝
撃を受けたにしてもフランジが回転する恐れは全くない
。(Effects of the Invention) As described above, in this invention, the tube insertion hole of the flange for fixing equipment is made larger than the outer diameter of the tube tip and smaller than the outer diameter of the tube body, and a large number of narrow grooves are formed on the inner surface of the tube insertion hole. While forming and press-fitting onto the tube body,
Since the peripheral part of the narrow groove is crimped from the rear of the flange toward the tube body, even if a part of the front end of the tube body is crimped into the narrow groove of the flange and receives an impact, There is no risk of the flange rotating.
また、バルジ部とパイロット部の成形に当たシ、チュー
ブ先端部を先ず所定の外径をなすように絞り加工し、そ
の後においてパイロット部を掴持することなく成形する
ようにしたので、パイロット部の表面には傷がつかず平
滑に保たれ、Ｏリングの破損を防ぐことができる。In addition, when forming the bulge part and the pilot part, the tip of the tube was first drawn to a predetermined outer diameter, and then the pilot part was formed without being held, so the pilot part The surface of the O-ring is kept smooth and free from scratches, preventing damage to the O-ring.
第１図はチューブ本体の断面図。
第２図イはフランジの断面図。
同 同口はその正面図。
第３図イ、口、ハはそれぞれチューブ本体にフランジを
装着するだめの工程図。
第４図イは成形されたチューブ継手の断面図。
同 同口は右方からみた一部切断背面図。
第５図イは従来のチューブ継手の断面図。
同 同口は従来のフランジの装着手順を示す説明図。
図中、
１１３′・・・パイロット部 １１・・・・・・チュ
ーブ本体１１ａ・・・先 端 部 １１ｂ・・・
パ ル ジ 部１２・・・・・・フ ラ ン ジ １
２ａ・・・チューブ挿通孔１２ｂ・・・ねじ挿通孔 １
２ｅ・・・円形凹所１２ｄ・・・細 み ぞ Ｃ・・
・・・・・・・クランプ治具り、 、 Ｄ、・・・第１
、第２の成形金型Ｄ３・・・・・・かしめダイス
特許出願人 横浜エイロクイツプ株式会社代 理
人 真 １） 真 −第２し
第３図
第４図
第５図
（イ）
ｂ
手続補正ＩＦ（方式）
％式％
り、事件の表示
昭和６３年特 許 願 第１４５８９７号し発明の名称
フランジ付チューブ継手の製造法
１、補正をする者
事件との関係 特許出節人
住 所 東京都港区新橋５丁目１０番５号名 称
横浜エイロクイツプ株式会社１、代理人FIG. 1 is a sectional view of the tube body. Figure 2A is a sectional view of the flange. The same entrance is the front view. Figure 3 A, C, and C are process diagrams for attaching the flange to the tube body, respectively. FIG. 4A is a cross-sectional view of the molded tube joint. This is a partially cutaway rear view of the same entrance, seen from the right. FIG. 5A is a sectional view of a conventional tube joint. The same opening is an explanatory diagram showing the conventional flange installation procedure. In the figure, 113'...pilot part 11...tube body 11a...tip part 11b...
Pulge part 12...Flange 1
2a...Tube insertion hole 12b...Screw insertion hole 1
2e...Circular recess 12d...Thin groove C...
・・・・・・Clamp jig, 、D、・・・1st
, second molding die D3...Clinching die patent applicant Yokohama Airoquip Co., Ltd. Agent
True 1) True - Second, Figure 3, Figure 4, Figure 5 (a) b Procedural amendment IF (method) % formula% Manufacturing method for tube fittings 1, relationship with the amended case Patent issuer address 5-10-5 Shinbashi, Minato-ku, Tokyo Name
Yokohama Airoquip Co., Ltd. 1, Agent
Claims (1)
を本体より小径に形成し、上記先端部に固定用のフラン
ジを内径が先端部と本体の外径の中間の大きさでその内
面に多数の細みぞを形成したチユーブ挿通孔を介して嵌
挿し、次いでチユーブ先端部を本体との境界部が先細り
の円錐伏をなすように絞り加工すると同時に上記フラン
ジを本体上に圧入し、その後、チユーブ先端部をその表
面を掴持することなく軸方向に加圧して放射状に膨出す
るバルジ部とパイロツト部を形成し、更にフランジの後
方から上記細みぞの周辺部をチユーブ本体に向けてかし
め付けることを特徴とするフランジ付チユーブ継手の製
造法。The tip of the tube body that is fixed to the end of the hose member is formed to have a smaller diameter than the main body, and a number of fixing flanges are provided on the inner surface of the tube body, the inner diameter of which is intermediate between the tip and the outer diameter of the body. The tip of the tube is then drawn so that the boundary with the main body forms a tapered conical shape, and at the same time the flange is press-fitted onto the main body. Press the tip end in the axial direction without grasping its surface to form a radially expanding bulge part and pilot part, and then swage the peripheral part of the narrow groove toward the tube body from the rear of the flange. A method for manufacturing a flanged tube joint characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63145897A JP2640360B2 (en) | 1988-06-15 | 1988-06-15 | Manufacturing method of tube fitting with flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63145897A JP2640360B2 (en) | 1988-06-15 | 1988-06-15 | Manufacturing method of tube fitting with flange |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01316595A true JPH01316595A (en) | 1989-12-21 |
| JP2640360B2 JP2640360B2 (en) | 1997-08-13 |
Family
ID=15395583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63145897A Expired - Fee Related JP2640360B2 (en) | 1988-06-15 | 1988-06-15 | Manufacturing method of tube fitting with flange |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2640360B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0523970A1 (en) * | 1991-07-15 | 1993-01-20 | Senior Engineering Investments, B.V. | Vibration isolating sealing clamp for conduit structures |
| JPH0547692U (en) * | 1991-07-26 | 1993-06-25 | 三豊工業株式会社 | Mounting structure for pipe and plate |
| US5704226A (en) * | 1996-06-24 | 1998-01-06 | Ford Motor Company | Manifold for a refrigerant receiver |
| FR2757613A1 (en) * | 1996-12-23 | 1998-06-26 | Valeo Climatisation | Refrigerant circuit connections to air-conditioner expansion valve |
| WO2014057676A1 (en) * | 2012-10-12 | 2014-04-17 | 株式会社デンソー | Pipe joint |
-
1988
- 1988-06-15 JP JP63145897A patent/JP2640360B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0523970A1 (en) * | 1991-07-15 | 1993-01-20 | Senior Engineering Investments, B.V. | Vibration isolating sealing clamp for conduit structures |
| JPH06123382A (en) * | 1991-07-15 | 1994-05-06 | Senior Engineering Investments Bv | Vibration isolating-sealing clamp for conduit structure |
| JPH0547692U (en) * | 1991-07-26 | 1993-06-25 | 三豊工業株式会社 | Mounting structure for pipe and plate |
| US5704226A (en) * | 1996-06-24 | 1998-01-06 | Ford Motor Company | Manifold for a refrigerant receiver |
| FR2757613A1 (en) * | 1996-12-23 | 1998-06-26 | Valeo Climatisation | Refrigerant circuit connections to air-conditioner expansion valve |
| WO2014057676A1 (en) * | 2012-10-12 | 2014-04-17 | 株式会社デンソー | Pipe joint |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2640360B2 (en) | 1997-08-13 |
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