JPS61195714A - Press bending method - Google Patents
Press bending methodInfo
- Publication number
- JPS61195714A JPS61195714A JP3798685A JP3798685A JPS61195714A JP S61195714 A JPS61195714 A JP S61195714A JP 3798685 A JP3798685 A JP 3798685A JP 3798685 A JP3798685 A JP 3798685A JP S61195714 A JPS61195714 A JP S61195714A
- Authority
- JP
- Japan
- Prior art keywords
- bent
- contact face
- bending
- forming
- right angles
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing Of Electrical Connectors (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はプレス曲げ加工方法、特に内側当接面に外側当
接面が当接するループ状断面に板材をプレス曲げする加
工に際し、その当接加工装置に中子を必要としない方法
に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a press bending method, in particular, to press bending a plate material into a loop-shaped cross section in which an outer abutting surface abuts an inner abutting surface. This invention relates to a method that does not require a core in processing equipment.
第4図は本発明の一適用製品となった圧着端子の拡大斜
視図(イ)とその右端面図(o)である。FIG. 4 is an enlarged perspective view (a) and a right end view (o) of a crimp terminal, which is one product to which the present invention is applied.
第4図において、厚さ0.2mmのりん青銅板からプレ
ス形成された圧着端子1は、信号線圧着部2と雄コンタ
クト嵌挿部3を具え、上下方向に対向する一対の舌片4
を有する嵌挿部3の前端部5と後端部6は、(0)図に
示す如く上部で重なるループ状断面に形成されている。In FIG. 4, a crimp terminal 1 press-formed from a phosphor bronze plate with a thickness of 0.2 mm includes a signal wire crimp part 2 and a male contact insertion part 3, and a pair of tongue pieces 4 facing each other in the vertical direction.
The front end 5 and rear end 6 of the insertion portion 3 are formed into a loop-shaped cross section that overlaps at the upper part, as shown in FIG.
第5図はループ状断面の端部5,6を仕上げ形成する従
来装置の要部を示す正面図、第6図は前記装置要部の開
離状態を示す斜視図である。ただし、第6図は第5図よ
りも縮小しである。FIG. 5 is a front view showing the main parts of a conventional apparatus for finishing and forming the ends 5 and 6 of a loop-shaped cross section, and FIG. 6 is a perspective view showing the main parts of the apparatus in an open state. However, FIG. 6 is smaller than FIG. 5.
第5図および第5図において、7は前後動可能な中子、
8,9は左右動可能な曲げグイであり、端部5,6は予
備曲げ加工を施したのち、中子7を使用した装置(順送
金型とプレス機械)で仕上げ形成していた。5 and 5, 7 is a core that can be moved back and forth;
Reference numerals 8 and 9 are bending gougs that can be moved left and right, and the ends 5 and 6 were subjected to preliminary bending and then finished forming using a device (progressive die and press machine) using a core 7.
しかし、上記端子1の角形端部5,6は外形寸法が1.
2mm角程度であり、曲げダイ8,9に対向する部分で
中子7の寸法は0.8mm角程度であり、その加工装置
の調整に些細な不備があっても容易に破損される。However, the square end portions 5 and 6 of the terminal 1 have external dimensions of 1.
The core 7 has a dimension of about 0.8 mm square at the portion facing the bending dies 8 and 9, and is easily damaged even if there is a slight flaw in the adjustment of the processing equipment.
と共に、中子7を成形端部5,6から抜去させるときの
引掛り対策を必要とする等により、加工装置の高速度化
を中子7が阻害していた。At the same time, the core 7 obstructs the speeding up of the processing equipment because it requires countermeasures against catching when the core 7 is removed from the forming ends 5 and 6.
上記問題点は、内側当接面に外側当接面が当接するルー
プ状断面に板材をプレス曲げする加工において、前記内
側当接面を前記当接用ポンチの動作方向に対向形成し、
少なくとも前記内側当接面が形成された部分を支えに前
記ポンチが前記外側当接面を前記内側当接面へ当接させ
ることを特徴とする、本発明のプレス曲げ加工方法によ
り解決される。The above problem is solved by forming the inner abutting surface facing the direction of operation of the abutting punch in the process of press bending a plate material into a loop-shaped cross section in which the outer abutting surface abuts the inner abutting surface,
The problem is solved by the press bending method of the present invention, characterized in that the punch brings the outer abutment surface into contact with the inner abutment surface using at least a portion on which the inner abutment surface is formed.
上記手段によれば、加工品の機械的強度を利用した曲げ
加工が可能となり、従来装置で必要とした中子が不要と
なって、該装置の高速度運転を可能となり、かつ運転に
先立つ段取りおよびメンテナンスの容易化を可能ならし
める。According to the above means, it is possible to perform bending using the mechanical strength of the processed product, the core required in conventional equipment is no longer required, the equipment can be operated at high speed, and the setup prior to operation can be carried out. and facilitate maintenance.
以下に、図面を用いて本発明を端子1の製造に適用した
実施例を説明する。EMBODIMENT OF THE INVENTION Below, the Example which applied this invention to the manufacture of the terminal 1 is demonstrated using drawing.
第1図(イ) 、 ([1) 、 (ハ)は圧着端子1
のループ状断面部5.6を形成する主要工程を説明する
ための端面図、第2図は端部5,6を仕上げ形成する金
型の主要構成とその動作を説明するための正面図である
。Figure 1 (A), ([1), and (C) are crimp terminals 1
FIG. 2 is an end view for explaining the main process of forming the loop-shaped cross-sectional portions 5 and 6 of FIG. be.
第1跡において、不要部分を打ち抜き除去したりん青銅
板の端部5,6形成部分は、(イ)図に示す如く、一方
の曲げ部分へを直角曲げすると共に、他方は曲げ部分B
を直角曲げし、その内側に位置する曲げ部分Cを鈍角に
曲げる。In the first trace, the end portions 5 and 6 of the phosphor bronze plate from which unnecessary portions have been punched out are bent at right angles to one bent portion, and the other is bent at right angles to the bent portion B, as shown in Figure (A).
is bent at a right angle, and the bent portion C located on the inside thereof is bent at an obtuse angle.
次いで、第1図(Il+)に示す如く、曲げ部分Aより
内側に位置する曲げ部分りを、曲げ部分Cの鈍角より直
角に近い鈍角に折曲げる加工する。Next, as shown in FIG. 1 (Il+), the bent portion located inside the bent portion A is bent to an obtuse angle that is closer to a right angle than the obtuse angle of the bent portion C.
次いで、第1図(ハ)に示す如く、曲げ部分りとCを直
角曲げすると共に、曲げ部分Bからの先端を押圧しその
当接面Eと、曲げ部分Aからの先端の当接面Fとを当接
させる。Next, as shown in FIG. 1(C), bend the bent portion C at right angles, and press the tip from the bent portion B to form a contact surface E and a contact surface F of the tip from the bent portion A. and bring them into contact.
第2図において、11は固定ダイ、12.13は左右方
向へ摺動可能な曲げダイ、14は圧縮コイルばね、15
、16はスライドポンチ、17は曲げポンチであり、プ
レス機械の駆動によりポンチ15.16.17が上下に
往復動し、ポンチ15.16の上下動とコイルばね14
のばね弾性により曲げダイ12.13が左右に往復動す
る。In FIG. 2, 11 is a fixed die, 12.13 is a bending die that can be slid in the left and right direction, 14 is a compression coil spring, and 15
, 16 is a slide punch, and 17 is a bending punch. The punches 15, 16, and 17 reciprocate up and down by the drive of the press machine, and the vertical movement of the punches 15.16 and the coil spring 14
The bending dies 12 and 13 reciprocate from side to side due to the elasticity of the spring.
かかる装置において、ポンチ15.16が降下動すると
、ポンチ15.16に肩部を押された曲げダイ12゜1
3はその対向方向(内側)へ前進する。そして、ダイ1
1の中央凸部に置かれた半加工端子、即ち端部5,6が
第1図(■)の如く形成され半製品を、ポンチ15.1
6が押圧し曲げ部分CとDを直角に曲げる。In such a device, when the punch 15.16 moves downward, the bending die 12°1 whose shoulder is pressed by the punch 15.16
3 moves forward in the opposite direction (inward). And die 1
Punch 15.1 to punch the semi-finished terminal, that is, the semi-finished terminal whose ends 5 and 6 are formed as shown in FIG.
6 presses and bends bent portions C and D at right angles.
すると、前記押圧より1テンポ遅れ、降下したポンチ1
7が曲げ部分Bより先端を押圧し、曲げ部分Bの直角曲
げを矯正して、曲げ部分Aより先端と曲げ部分Bより先
端とが当接(重なり)し、ループ状断゛面の端部5,6
を具えた端子1が完成する。Then, punch 1 descends 1 tempo later than the above pressing.
7 presses the tip from the bent part B, corrects the right angle bend of the bent part B, and the tip from the bent part A and the tip from the bent part B contact (overlap), and the end of the loop-shaped cross section 5,6
Terminal 1 is completed.
ただし、ポンチ17の前記押圧は曲げ部分AとDの間お
よび曲げ部分BとCの間を支えとし、その押圧力は前記
支え部材で座屈を生、しないように、ポンチ17のスト
ロークが設定されている。However, the pressing force of the punch 17 is supported between the bent portions A and D and between the bent portions B and C, and the stroke of the punch 17 is set so that the pressing force does not cause buckling at the supporting member. has been done.
第3図は他の実施例になるループ状断面形状を示す図で
ある。FIG. 3 is a diagram showing a loop-shaped cross-sectional shape according to another embodiment.
第3図において、(イ)は一方のコーナ部で当接する角
形断面例、(El)は一方の中間部で当接する円形断面
例であり、図中の符号GとHは当接面。In FIG. 3, (A) is an example of a rectangular cross-section that abuts at one corner, (El) is an example of a circular cross-section that abuts at one middle part, and symbols G and H in the figure are contact surfaces.
点線は最終工程で曲げ加工される部分の形状を示す。The dotted line indicates the shape of the part to be bent in the final process.
〔発明の効果〕
以上説明した如く本発明によれば、加工部材の一部分を
利用して、従来の金型に必要となった中子を不要とした
ため、該金型の動作を高速化して生産性の向上をし、駆
動前の段取りとメンテナンスを容易にした効果が顕著で
ある。[Effects of the Invention] As explained above, according to the present invention, a part of the processed member is used to eliminate the need for a core required in conventional molds, which speeds up the operation of the mold and facilitates production. The effects of improved performance and ease of setup and maintenance before driving are remarkable.
第1図(<) 、 (o) 、 (11)は本発明の一
実施例に係わり圧着端子のループ状断面端部を形成する
主要工程を説明するための端面図、
第2図は前記端部を仕上げ形成する金型の主要構成とそ
の動作を説明するための正面図、第3図(() (o)
は他の実施例になるループ状断面形状を示す図、
第4図は本発明の一適用製品となった圧着端子の拡大斜
視図(イ)とその右端面図(ロ)、第5図はループ状断
面端部を仕上げ形成する従来装置の要部を示す正面図、
第6図は前記装置要部の開離状態を示す斜視図、である
。
図中において、
1は圧着端子、
5.6は圧着端子のループ状断面部分、F、Gは内側当
接面、
E、Hは外側当接面、
を示す。
那1図
亮2図
(イ) (ロ)秀 3
履FIGS. 1(<), (o), and (11) are end views for explaining the main steps of forming a loop-shaped cross-sectional end of a crimp terminal according to an embodiment of the present invention, and FIG. 2 is an end view of the end. Figure 3 (() (o) is a front view for explaining the main structure and operation of the mold for finishing forming the part.
4 is an enlarged perspective view (a) and a right end view (b) of a crimp terminal, which is a product to which the present invention is applied, and FIG. FIG. 6 is a front view showing the main parts of a conventional apparatus for finishing and forming a loop-shaped cross-sectional end, and FIG. 6 is a perspective view showing the main parts of the apparatus in an open state. In the figure, 1 is a crimp terminal, 5.6 is a loop-shaped cross section of the crimp terminal, F and G are inner abutting surfaces, and E and H are outer abutting surfaces. Na1 zu Ryo 2 zu (a) (b) Shu 3
Shoes
Claims (1)
をプレス曲げする加工において、前記内側当接面を当接
用ポンチの動作方向に対向形成し、少なくとも前記内側
当接面が形成された部分を支えに前記ポンチが前記外側
当接面を前記内側当接面へ当接させることを特徴とする
プレス曲げ加工方法。In the process of press bending a plate material into a loop-shaped cross section in which an outer abutting surface abuts an inner abutting surface, the inner abutting surfaces are formed to face each other in the operating direction of the abutting punch, and at least the inner abutting surface is formed. A press bending method characterized in that the punch brings the outer contact surface into contact with the inner contact surface using the bent portion as support.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3798685A JPS61195714A (en) | 1985-02-27 | 1985-02-27 | Press bending method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3798685A JPS61195714A (en) | 1985-02-27 | 1985-02-27 | Press bending method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61195714A true JPS61195714A (en) | 1986-08-30 |
JPH0236325B2 JPH0236325B2 (en) | 1990-08-16 |
Family
ID=12512891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3798685A Granted JPS61195714A (en) | 1985-02-27 | 1985-02-27 | Press bending method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61195714A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0312918A2 (en) * | 1987-10-22 | 1989-04-26 | Fael S.A. | Method and apparatus for making a can body of non-circular section |
FR2728814A1 (en) * | 1994-12-29 | 1996-07-05 | St Mathurin Soc Civ | Machinery component made from folded strip material |
JP2003053448A (en) * | 2001-08-09 | 2003-02-26 | Araco Corp | Hollow workpiece forming method and press apparatus using it |
KR100422752B1 (en) * | 2001-07-10 | 2004-03-12 | (주)한국대화금속 | Particular shaped press article's molding method and that device |
KR100846849B1 (en) | 2007-03-30 | 2008-07-17 | 한국단자공업 주식회사 | Terminal forming apparatus and method |
JP2010075988A (en) * | 2008-09-29 | 2010-04-08 | Dowa Metaltech Kk | Method for punching plate material |
CN104138938A (en) * | 2013-09-26 | 2014-11-12 | 国家电网公司 | Spread length parameter determination method and production method for sheet metal part adopting double edge bending |
JP2019129127A (en) * | 2018-01-26 | 2019-08-01 | タツタ電線株式会社 | Connector terminal, connector and size control device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5348831U (en) * | 1976-09-29 | 1978-04-25 |
-
1985
- 1985-02-27 JP JP3798685A patent/JPS61195714A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5348831U (en) * | 1976-09-29 | 1978-04-25 |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0312918A2 (en) * | 1987-10-22 | 1989-04-26 | Fael S.A. | Method and apparatus for making a can body of non-circular section |
FR2728814A1 (en) * | 1994-12-29 | 1996-07-05 | St Mathurin Soc Civ | Machinery component made from folded strip material |
KR100422752B1 (en) * | 2001-07-10 | 2004-03-12 | (주)한국대화금속 | Particular shaped press article's molding method and that device |
JP2003053448A (en) * | 2001-08-09 | 2003-02-26 | Araco Corp | Hollow workpiece forming method and press apparatus using it |
JP4538997B2 (en) * | 2001-08-09 | 2010-09-08 | トヨタ紡織株式会社 | Press machine |
KR100846849B1 (en) | 2007-03-30 | 2008-07-17 | 한국단자공업 주식회사 | Terminal forming apparatus and method |
JP2010075988A (en) * | 2008-09-29 | 2010-04-08 | Dowa Metaltech Kk | Method for punching plate material |
CN104138938A (en) * | 2013-09-26 | 2014-11-12 | 国家电网公司 | Spread length parameter determination method and production method for sheet metal part adopting double edge bending |
CN104138938B (en) * | 2013-09-26 | 2016-08-17 | 国家电网公司 | Double-fold unfolding sheet metal parts length parameter determines method and production method |
JP2019129127A (en) * | 2018-01-26 | 2019-08-01 | タツタ電線株式会社 | Connector terminal, connector and size control device |
US10855017B2 (en) | 2018-01-26 | 2020-12-01 | Tatsuta Electric Wire & Cable Co., Ltd. | Connector terminal, connector, and size adjustment device |
Also Published As
Publication number | Publication date |
---|---|
JPH0236325B2 (en) | 1990-08-16 |
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