JP5578732B2

JP5578732B2 - Crimping tool

Info

Publication number: JP5578732B2
Application number: JP2011140419A
Authority: JP
Inventors: 真之介川合; 雅則安藤; 充弘高崎
Original assignee: ENGINEER Inc
Current assignee: ENGINEER Inc
Priority date: 2011-06-24
Filing date: 2011-06-24
Publication date: 2014-08-27
Anticipated expiration: 2031-06-24
Also published as: JP2013008549A

Description

本発明は、圧着端子用の圧着工具に関し、なかでも、圧着ダイがあご部に対して交換可能に設けてある圧着工具に関する。 The present invention relates to a crimping tool for a crimping terminal, and more particularly to a crimping tool in which a crimping die is provided to be exchangeable with respect to a jaw part.

圧着ダイを交換できる形態の圧着工具は、例えば特許文献１に公知である。そこでは、一対の第１レバーの作用端に一対の第２レバー（あご部）を交又する状態で連結し、第２レバーの先端同士を連結ピンで連結してトグル機構を構成し、第２レバーの対向面の間に圧着ダイを交換可能に装着している。圧着ダイには、圧着ダイを第２レバーに締結するためのねじ穴と、一対のノックピンとが設けてあり、ノックピンを第２レバーに設けたノッチとピン受部とで位置決めした状態で、圧着ダイをビスで締結できるようにしている。圧着ダイを交換する場合には、第２レバーの先端同士を連結する連結ピンを抜いて第２レバーを拡げたのち、ビスを取外して圧着ダイを第２レバーから分離する。 A crimping tool in which the crimping die can be exchanged is known, for example, from Patent Document 1. There, a pair of second levers (jaws) are connected to the working ends of the pair of first levers in a state where they are crossed, and the tips of the second levers are connected by a connecting pin to form a toggle mechanism. A crimping die is replaceably mounted between the opposing surfaces of the two levers. The crimping die is provided with a screw hole for fastening the crimping die to the second lever and a pair of knock pins, and the crimp pin is crimped in a state where the knock pin is positioned by the notch and the pin receiving portion provided in the second lever. The die can be fastened with screws. When exchanging the crimping die, the connecting pin that connects the tips of the second levers is pulled out to expand the second lever, and then the screws are removed to separate the crimping die from the second lever.

特許文献２の圧着工具においては、ピン連結される一対のハンドルと、ハンドルの作用端に連結される一対のあご部と、両あご部の支点を備えたピボットなどでプライヤを構成し、あご部の対向面に圧着ダイを交換可能に装着している。圧着ダイにはスライド突起が設けてあり、この突起があご部に設けた溝と係合する状態で圧着ダイを装着し、さらに、あご部の側から圧着ダイへ向かって２個のビスをねじ込むことにより、圧着ダイをあご部に固定している。圧着ダイを交換する場合には、あご部を拡げたのち、ビスを取外して圧着ダイをスライドさせながらあご部から取外す。 In the crimping tool of Patent Document 2, a pair of handles connected to pins, a pair of jaws connected to the working end of the handle, a pivot having a fulcrum of both jaws, and the like constitute a pliers. A crimping die is replaceably mounted on the opposite surface. The crimping die is provided with a slide projection, and the crimping die is mounted in a state where the projection engages with the groove provided in the jaw portion, and further, two screws are screwed from the jaw portion side toward the crimping die. Thus, the crimping die is fixed to the jaw part. When replacing the crimping die, expand the jaw, then remove the screw and slide the crimping die away from the jaw.

特許第４０３０４１１号公報（段落番号００２１、図４）Japanese Patent No. 4030411 (paragraph number 0021, FIG. 4) 特開２０００−１３３４０１号公報（段落番号００２３、図４〜図５）JP 2000-133401 A (paragraph number 0023, FIGS. 4 to 5)

特許文献１の圧着工具は、一対のノックピンを第２レバーのノッチとピン受部とで位置決めした状態で、圧着ダイをビスで締結して第２レバーに固定できる。しかし、ノックピンによる位置決めは、圧着ダイを第２レバーに対して位置決めしているにすぎない。そのため、第２レバーを互いに接近させて一対の圧着ダイを圧着姿勢にした状態において、一方の圧着ダイに設けた突起状の圧着刃の中心と、他方の圧着ダイに設けたＵ字状の折曲刃の中心とを適正に一致させることができない。これは、第２レバーおよび圧着ダイの加工精度にばらつきがあることと、両レバーを組付けたときの組付位置と、第２レバーと圧着ダイを組付けたときの組付位置にばらつきがあるためである。 The crimping tool of Patent Document 1 can fix the crimping die to the second lever by fastening the crimping die with a screw in a state where the pair of knock pins are positioned by the notch of the second lever and the pin receiving portion. However, the positioning by the knock pin only positions the crimping die with respect to the second lever. For this reason, in the state where the second lever is brought close to each other and the pair of crimping dies are in the crimping posture, the center of the protruding crimping blade provided on one crimping die and the U-shaped folding provided on the other crimping die. The center of the curved blade cannot be properly matched. This is because there are variations in the processing accuracy of the second lever and the crimping die, the assembly position when both levers are assembled, and the assembly position when the second lever and crimping die are assembled. Because there is.

上記のように、圧着刃の中心と折曲刃の中心とが位置ずれしていると、圧着端子に設けた一対のかしめ爪を均等に折り曲げることができないばかりか、場合によっては圧着不良を生じることがある。圧着刃と折曲刃の中心の位置ずれの問題は、特許文献２の圧着工具においても同様に生じるが、特許文献１、２の圧着工具に固有の問題ではなく、圧着ダイを交換できる形態の圧着工具において共通の問題となっている。 As described above, if the center of the crimping blade and the center of the bending blade are misaligned, the pair of crimping claws provided on the crimping terminal cannot be bent evenly, and in some cases, a crimping failure may occur. Sometimes. The problem of the misalignment between the center of the crimping blade and the bending blade also occurs in the crimping tool of Patent Document 2, but it is not a problem specific to the crimping tool of Patent Documents 1 and 2, and the crimping die can be replaced. This is a common problem in crimping tools.

また、特許文献１の圧着工具は、圧着作業時に第２レバーが撓むのを避けるために、第２レバーの先端同士を連結ピンで連結している。そのため、圧着ダイを交換する場合には、先の連結ピンを抜いて第２レバーを拡げ、さらにビスを圧着ダイから分離したのち、圧着ダイを第２レバーから取外して、新たな圧着ダイを組む必要がある。そのため、圧着ダイの交換に多くの手間が掛かる。その点、特許文献２の圧着工具は、あご部を拡げたのちビスを取り外し、さらに、圧着ダイをスライドさせながらあご部から取外せばよいので、特許文献１の圧着工具に比べると、圧着ダイの交換の手間を幾分か軽減できる。しかし、ビスを圧着ダイから完全に分離する必要があるので、手間を軽減できる度合はごくわずかでしかなく、圧着ダイの交換を速やかに行えない。 Moreover, in the crimping tool of Patent Document 1, the tips of the second levers are coupled to each other by a coupling pin in order to avoid the second lever from being bent during the crimping operation. Therefore, when replacing the crimping die, pull out the previous connecting pin, expand the second lever, separate the screw from the crimping die, remove the crimping die from the second lever, and assemble a new crimping die. There is a need. Therefore, it takes a lot of time to replace the crimping die. In that respect, the crimping tool of Patent Document 2 can be removed by removing the screw after expanding the jaw part, and then removing it from the jaw part while sliding the crimping die. Can be reduced to some extent. However, since it is necessary to completely separate the screw from the crimping die, the amount of time and effort can be reduced is very small, and the crimping die cannot be replaced quickly.

従来の圧着ダイにおいては、積層した板材をワイヤーソーで切断することにより、圧着刃や折曲刃を形成している。しかし、積層した板材の上下端と中途部との間で、ワイヤーソーが撓み変形するため、圧着刃や折曲刃の形状にばらつきを生じやすく、加工不良となる切断ブランクの数は少なくない。こうした歩留まりの悪さを解消するために、本発明者は圧着ダイを金属粉末射出成形法で形成して、圧着刃や折曲刃の形状精度を向上できるようにした。しかし、形状精度が高い圧着ダイであっても、これをアームのあご部に装着した状態において、圧着刃の中心と折曲刃の中心とがずれていたのでは、圧着端子を適正に圧着することはできない。 In a conventional crimping die, a laminated blade is cut with a wire saw to form a crimping blade or a bending blade. However, since the wire saw bends and deforms between the upper and lower ends and the middle part of the laminated plate materials, the shapes of the crimping blade and the bending blade are likely to vary, and the number of cutting blanks that cause processing defects is not small. In order to eliminate such poor yield, the present inventor has formed a crimping die by a metal powder injection molding method so that the shape accuracy of the crimping blade and the bending blade can be improved. However, even if it is a crimping die with high shape accuracy, the crimping terminal is properly crimped if the center of the crimping blade and the center of the bending blade are misaligned when it is mounted on the jaw of the arm. It is not possible.

本発明の目的は、圧着ダイをあご部に対して位置決めできるのはもちろん、一対の圧着ダイの上下位置を正確に位置決めして、圧着刃の中心と折曲刃の中心とを一致させることができ、従って、圧着端子を常に適正に圧着処理できる圧着工具を提供することにある。
本発明の目的は、圧着ダイのあご部に対する着脱を少ない手間で簡便に行うことができ、従って、圧着ダイの交換を迅速に行なえる圧着工具を提供することにある。
本発明の目的は、圧着刃の中心と折曲刃の中心とを正確に一致させるための位置決め構造を簡素化して圧着ダイをより低コストで製造でき、その分だけ低コスト化された圧着工具を提供することにある。 The object of the present invention is not only to position the crimping die with respect to the jaw part, but also to accurately position the upper and lower positions of the pair of crimping dies so that the center of the crimping blade and the center of the bending blade are aligned. Therefore, an object of the present invention is to provide a crimping tool capable of always properly crimping a crimp terminal.
An object of the present invention is to provide a crimping tool that can be easily attached to and detached from a jaw part of a crimping die with little effort, and therefore can quickly replace the crimping die.
The object of the present invention is to simplify the positioning structure for accurately matching the center of the crimping blade and the center of the bending blade to manufacture a crimping die at a lower cost, and the cost is reduced accordingly. Is to provide.

本発明に係る圧着工具は、第１アーム１と第２アーム２の作用部側に一対のあご部４・４が設けてあり、両あご部４・４の対向面に一対の圧着ダイ１５・１５が着脱可能にねじ構造で締結してある。図１に示すように、一方の圧着ダイ１５には、複数の圧着刃２４と逃げ凹部２５とを交互に形成する。他方の圧着ダイ１５には、複数の折曲刃２６と区分突起２７とを交互に形成する。あご部４と圧着ダイ１５との間に、左右方向の位置決めを行う第１位置決め構造を設ける。さらに、一対の圧着ダイ１５・１５の間に、上下方向の位置決めを行う第２位置決め構造を設ける。 The crimping tool according to the present invention is provided with a pair of jaws 4 and 4 on the working side of the first arm 1 and the second arm 2, and a pair of crimping dies 15. 15 is fastened with a screw structure so as to be detachable. As shown in FIG. 1, a plurality of crimping blades 24 and relief recesses 25 are alternately formed on one crimping die 15. On the other crimping die 15, a plurality of bending blades 26 and segment protrusions 27 are alternately formed. A first positioning structure that performs positioning in the left-right direction is provided between the jaw portion 4 and the crimping die 15. Further, a second positioning structure for positioning in the vertical direction is provided between the pair of crimping dies 15 and 15.

第２位置決め構造は、逃げ凹部２５の内奥と区分突起２７の突端に形成した、位置決め突起３５と位置決め凹部３６とで構成する。圧着ダイ１５をあご部４に組付ける過程で、位置決め突起３５と位置決め凹部３６とを係合して、圧着刃２４の中心と折曲刃２６の中心とを一致させる。 The second positioning structure includes a positioning projection 35 and a positioning recess 36 formed at the inner depth of the relief recess 25 and the protruding end of the segment projection 27. In the process of assembling the crimping die 15 to the jaw portion 4, the positioning protrusion 35 and the positioning recess 36 are engaged to align the center of the crimping blade 24 with the center of the bending blade 26.

一対のあご部４・４のそれぞれに、圧着ダイ１５・１５を複数のねじ構造で締結固定する。圧着ダイ１５に、ねじ軸部１９ａを挿通するための装着溝３２を形成する。装着溝３２を圧着ダイ１５の周縁において開口させて、圧着ダイ１５を前記ねじ軸部１９ａに対して着脱できるようにする。 The crimping dies 15 and 15 are fastened and fixed to each of the pair of jaw portions 4 and 4 with a plurality of screw structures. A mounting groove 32 for inserting the screw shaft portion 19 a is formed in the crimping die 15. The mounting groove 32 is opened at the periphery of the crimping die 15 so that the crimping die 15 can be attached to and detached from the screw shaft portion 19a.

一対のあご部４・４に、圧着ダイ１５を位置決めする基準面１６と締結面１７とを設ける。圧着ダイ１５は、基準面１６および締結面１７で支持される断面Ｌ字状の基部２２と、基部２２に連続して対向する圧着ダイ１５へ向かって突出する刃部２３とを備えている。第１位置決め構造は、あご部４に設けた基準面１６と、圧着ダイ１５の基部２２に設けた位置決め面３０とで構成する。 A reference surface 16 and a fastening surface 17 for positioning the crimping die 15 are provided on the pair of jaw portions 4 and 4. The crimping die 15 includes an L-shaped base portion 22 supported by the reference surface 16 and the fastening surface 17, and a blade portion 23 that protrudes toward the crimping die 15 that continuously faces the base portion 22. The first positioning structure includes a reference surface 16 provided on the jaw portion 4 and a positioning surface 30 provided on the base portion 22 of the crimping die 15.

第１アーム１と第２アーム２とを連結軸３でＸ字状に連結して、両アーム１・２の作用端にあご部４・４を一体に設けてプライヤ状に構成する。 The first arm 1 and the second arm 2 are connected in an X shape with a connecting shaft 3, and jaws 4, 4 are integrally provided at the working ends of both arms 1, 2 to form a pliers.

圧着ダイ１５は、あご部４にねじ込んだボルト１９で締結する。装着溝３２の周縁に沿って、ボルト１９の操作頭部１９ｂを受入れる締結座３３を凹み形成する。 The crimping die 15 is fastened with a bolt 19 screwed into the jaw part 4. A fastening seat 33 for receiving the operation head 19 b of the bolt 19 is formed in a recessed manner along the periphery of the mounting groove 32.

一対の装着溝３２の溝中心を位置決め面３０に対して斜めに傾斜する状態で平行に設ける。第１アーム１と第２アーム２を開放姿勢にした状態において、一方の圧着ダイ１５を他方の圧着ダイ１５の位置決め面３０と概ね平行な方向に沿って着脱できるようにする。 The groove centers of the pair of mounting grooves 32 are provided in parallel so as to be inclined obliquely with respect to the positioning surface 30. In a state where the first arm 1 and the second arm 2 are in the open posture, one crimping die 15 can be attached and detached along a direction substantially parallel to the positioning surface 30 of the other crimping die 15.

本発明においては、あご部４と圧着ダイ１５との間に第１位置決め構造を設け、さらに、一対の圧着ダイ１５・１５の間に第２位置決め構造を設けて、圧着ダイ１５を左右方向と上下方向に位置決めした状態であご部４に固定できるようにした。このように、圧着ダイ１５をあご部４に対して位置決めしたうえで、一対の圧着ダイ１５・１５どうしを位置決めすると、一方の圧着ダイ１５に設けた圧着刃２４の中心と、他方の圧着ダイ１５に設けた折曲刃２６の中心とを適正に一致させることができる。従って、圧着ダイ１５をあご部４に対して交換できる圧着工具であるにも拘らず、圧着刃２４と折曲刃２６との対応関係を常に適正化して、圧着工具による圧着端子の圧着処理を適正にしかも確実に行うことができる。 In the present invention, a first positioning structure is provided between the jaw portion 4 and the crimping die 15, and a second positioning structure is provided between the pair of crimping dies 15, 15. It can be fixed to the jaw part 4 in a state of being positioned in the vertical direction. Thus, after positioning the crimping die 15 with respect to the jaw portion 4 and positioning the pair of crimping dies 15, 15, the center of the crimping blade 24 provided on one crimping die 15 and the other crimping die are arranged. 15 and the center of the bending blade 26 provided in 15 can be appropriately matched. Accordingly, despite the fact that the crimping die 15 is a crimping tool that can be exchanged for the jaw part 4, the correspondence between the crimping blade 24 and the bending blade 26 is always optimized, and the crimping process of the crimping terminal by the crimping tool is performed. It can be done properly and reliably.

逃げ凹部２５と区分突起２７に形成した位置決め突起３５と位置決め凹部３６とで第２位置決め構造を構成すると、逃げ凹部２５および区分突起２７を形成する過程で、位置決め突起３５および位置決め凹部３６を同時に形成することができる。また、単純な形状の位置決め突起３５および位置決め凹部３６で第２位置決め構造を構成するので、第２位置決め構造を簡素化でき、圧着ダイ５をより低コストで形成して圧着工具を低コスト化できる。さらに、圧着処理に関与しない逃げ凹部２５および区分突起２７に位置決め突起３５および位置決め凹部３６を形成するので、圧着作業を行う場合に位置決め突起３５および位置決め凹部３６が作業の邪魔になるのを防止できる。 When the second positioning structure is configured by the positioning protrusion 35 and the positioning recess 36 formed in the escape recess 25 and the partitioning protrusion 27, the positioning protrusion 35 and the positioning recess 36 are simultaneously formed in the process of forming the escape recess 25 and the partitioning protrusion 27. can do. Further, since the second positioning structure is constituted by the positioning protrusions 35 and the positioning recesses 36 having a simple shape, the second positioning structure can be simplified, and the crimping die 5 can be formed at a lower cost to reduce the cost of the crimping tool. . Furthermore, since the positioning projection 35 and the positioning recess 36 are formed in the relief recess 25 and the segment projection 27 that are not involved in the crimping process, it is possible to prevent the positioning projection 35 and the positioning recess 36 from interfering with the work when performing the crimping operation. .

圧着ダイ１５にねじ構造で締結固定するための装着溝３２を形成し、装着溝３２を圧着ダイ１５の周縁において開口させると、例えばあご部４にねじ込まれたボルト１９を完全に取り外す必要もなく、圧着ダイ１５をあご部４に着脱できる。従って、従来の圧着工具に比べて、圧着ダイ１５のあご部４に対する着脱を少ない手間で簡便に行うことができ、圧着ダイ１５の交換を迅速に行なうことができる。 When the mounting groove 32 for fastening and fixing to the crimping die 15 with a screw structure is formed and the mounting groove 32 is opened at the periphery of the crimping die 15, for example, it is not necessary to completely remove the bolt 19 screwed into the jaw portion 4. The crimping die 15 can be attached to and detached from the jaw portion 4. Therefore, compared to the conventional crimping tool, the crimping die 15 can be easily attached to and detached from the jaw portion 4 with less effort, and the crimping die 15 can be replaced quickly.

あご部４に設けた基準面１６と、圧着ダイ１５の基部２２に設けた位置決め面３０とで第１位置決め構造を構成すると、圧着ダイ１５の位置決め面３０をあご部４の基準面１６に押付けるだけで、圧着ダイ１５のあご部４に対する左右位置を簡単に位置決めできる。また、互いに面接触する基準面１６と位置決め面３０とで位置決め状態を保持するので、第２位置決め構造による位置決めを安定した状態で行なうことができる。さらに、ねじ構造をねじ込んで圧着ダイ１５を締結する際に、圧着ダイ１５を安定した状態で保持することができる。 When the first positioning structure is configured by the reference surface 16 provided on the jaw portion 4 and the positioning surface 30 provided on the base portion 22 of the crimping die 15, the positioning surface 30 of the crimping die 15 is pressed against the reference surface 16 of the jaw portion 4. The left and right positions of the crimping die 15 with respect to the jaw part 4 can be easily determined simply by attaching them. In addition, since the positioning state is maintained by the reference surface 16 and the positioning surface 30 that are in surface contact with each other, positioning by the second positioning structure can be performed in a stable state. Furthermore, when screwing the screw structure and fastening the crimping die 15, the crimping die 15 can be held in a stable state.

第１アーム１と第２アーム２を連結軸３でＸ字状に連結し、両アーム１・２の作用端にあご部４・４を一体に設けたプライヤ状の圧着工具によれば、例えば、トグル構造のあご部を備えた圧着工具に比べて、あご部４の構造を簡素化しコンパクト化できる。従って、小型の圧着端子を圧着するのに適した圧着工具とすることができる。 According to a plier-type crimping tool in which the first arm 1 and the second arm 2 are connected in an X shape with a connecting shaft 3 and jaws 4 and 4 are integrally provided at the working ends of both arms 1 and 2, for example, Compared to a crimping tool having a toggle-structured jaw, the structure of the jaw 4 can be simplified and made compact. Therefore, a crimping tool suitable for crimping a small crimp terminal can be obtained.

装着溝３２の周縁に沿って、ボルト１９の操作頭部１９ｂを受入れる締結座３３が凹み形成してある圧着工具によれば、あご部４にねじ込んだボルト１９の突出寸法を締結座３３の凹み分だけ小さくできる。従って、圧着工具を使用するとき、ボルト１９の操作頭部１９ｂにリード線や衣服の一部が引っ掛かるのを良く防止できるうえ、圧着工具を出し入れするときに、ボルト１９が収納ケースに引っ掛かることも防止できる。 According to the crimping tool in which the fastening seat 33 for receiving the operation head 19b of the bolt 19 is formed along the peripheral edge of the mounting groove 32, the protruding dimension of the bolt 19 screwed into the jaw portion 4 is set to the depression of the fastening seat 33. You can make it smaller. Therefore, when using a crimping tool, it is possible to prevent a part of the lead wire or clothing from being caught on the operation head 19b of the bolt 19, and the bolt 19 can be caught in the storage case when the crimping tool is put in and out. Can be prevented.

一対の装着溝３２の溝中心を位置決め面３０に対して斜めに傾斜する状態で平行に設けると、一方の圧着ダイ１５をあご部４から取外すとき、取外し途中の圧着ダイ１５が他方の圧着ダイ１５に接当するのを防止できる。従って、圧着ダイ１５のあご部４に対する着脱を円滑に行える。 When the groove centers of the pair of mounting grooves 32 are provided parallel to each other so as to be inclined with respect to the positioning surface 30, when one crimping die 15 is removed from the jaw portion 4, the crimping die 15 in the middle of the removal is the other crimping die. It is possible to prevent contact with 15. Therefore, the crimping die 15 can be smoothly attached to and detached from the jaw portion 4.

本発明に係る圧着工具のあご部構造を示す正面図である。It is a front view which shows the jaw part structure of the crimping tool which concerns on this invention. 本発明に係る圧着工具の正面図である。It is a front view of the crimping tool concerning the present invention. 圧着ダイおよびあご部の分解斜視図である。It is a disassembled perspective view of a crimping | compression-bonding die and a jaw part. 圧着ダイをあご部から分離した状態の正面図である。It is a front view in the state where a crimping die was separated from a jaw part. 図１におけるＡ−Ａ線断面図である。It is the sectional view on the AA line in FIG. 圧着工具の別の実施例を示す正面図である。It is a front view which shows another Example of a crimping | compression-bonding tool. 圧着工具のさらに別の実施例を示す正面図である。It is a front view which shows another Example of a crimping tool. 第１アームおよび第２アームのブランクを示す要部の正面図である。It is a front view of the principal part which shows the blank of a 1st arm and a 2nd arm. 一対のブランク同士を位置決めした状態の正面図である。It is a front view of the state which positioned a pair of blanks. 一対のブランクに対する穴あけ加工を示す説明図である。It is explanatory drawing which shows the drilling process with respect to a pair of blank.

（実施例）図１ないし図５は本発明をプライヤ型の圧着工具に適用した実施例を示す。図２においてプライヤ型の圧着工具は、Ｘ字状に配置した第１アーム１と第２アーム２とをボルト（連結軸）３およびナットで相対揺動可能に連結して構成する。両アーム１・２は、第１アーム１に配置した捻じりコイル形の開きばね７で開き付勢してある。なお、本発明における前後、左右、上下とは、図２に示す交差矢印と上下、左右、前後の文字表示に従うこととする。 (Example) FIG. 1 thru | or FIG. 5 shows the Example which applied this invention to the plier type crimping tool. In FIG. 2, a plier-type crimping tool is configured by connecting a first arm 1 and a second arm 2 arranged in an X shape with a bolt (connection shaft) 3 and a nut so as to be capable of relative swinging. Both arms 1 and 2 are opened and biased by a torsion coil-shaped opening spring 7 disposed on the first arm 1. In the present invention, “front / rear”, “left / right”, and “up / down” follow the cross arrows shown in FIG.

各アーム１・２は、それぞれ上端にあご部４を有し、下端側を握り柄５としたクランク形状のプレス成形品からなり、握り柄５の外面はプラスチック製のグリップ体６で覆われている。先の開きばね７は一対のばね腕８を備えており、一方のばね腕８は第１アーム１のグリップ体６に埋設され、他方のばね腕８は、第２アーム２の握り柄５側の交差部分に設けた、湾曲凹部からなるばね受部９に掛止してある。 Each of the arms 1 and 2 is a crank-shaped press-molded product having a jaw portion 4 at the upper end and a grip handle 5 at the lower end, and the outer surface of the handle handle 5 is covered with a plastic grip body 6. Yes. The opening spring 7 includes a pair of spring arms 8. One spring arm 8 is embedded in the grip body 6 of the first arm 1, and the other spring arm 8 is the grip handle 5 side of the second arm 2. It is latched by the spring receiving part 9 which consists of a curved recessed part provided in the crossing part.

第２アーム２には、両アーム１・２の開き限界を規定し、さらに両アーム１・２を圧着姿勢（図１に示す状態）に保持するストッパー１０が設けてある。ストッパー１０には、第１規制面１１と第２規制面１２とが設けてあり、図２に示す状態では、第２規制面１２が第１アーム１を受止めて、両アーム１・２がこれ以上開くのを規制している。この状態から、両アーム１・２を圧着姿勢にしたのち、ストッパー１０をボルト１３の周りに時計回転方向へ回動すると、第１規制面１１が第１アーム１と接当して、不使用時の両アーム１・２を圧着姿勢に保持できる。 The second arm 2 is provided with a stopper 10 that defines the opening limit of the arms 1 and 2 and holds the arms 1 and 2 in a crimping posture (the state shown in FIG. 1). The stopper 10 is provided with a first restriction surface 11 and a second restriction surface 12. In the state shown in FIG. 2, the second restriction surface 12 receives the first arm 1, and both arms 1 and 2 are It is restricted from opening any more. From this state, after both arms 1 and 2 are brought into the crimping posture, when the stopper 10 is rotated around the bolt 13 in the clockwise direction, the first restricting surface 11 comes into contact with the first arm 1 and is not used. Both arms 1 and 2 can be held in a crimped posture.

一対のあご部４の対向面には、それぞれ圧着ダイ１５が着脱可能にねじ構造で締結してある。圧着ダイ１５をあご部４に対して正確に位置決めした状態で固定するために、あご部４と圧着ダイ１５との間に、左右方向の位置決めを行う第１位置決め構造を設けている。 A crimping die 15 is detachably fastened to the opposing surfaces of the pair of jaw portions 4 in a screw structure. In order to fix the crimping die 15 in a state where it is accurately positioned with respect to the jaw part 4, a first positioning structure is provided between the jaw part 4 and the crimping die 15 to perform lateral positioning.

一対のあご部４の対向面には、第１位置決め構造を構成する平坦面からなる基準面１６が設けてあり、さらに基準面１６と直交する締結面１７が設けてある。第１アーム１における締結面１７はあご部４の後面側に設け、第２アーム２における締結面１７はあご部４の前面側に設ける。締結面１７の上下２個所には、ねじ穴１８が貫通状に形成してあり、このねじ穴１８と、同穴１８にねじ込まれる六角穴付ボルト（ボルト）１９とで先のねじ構造を構成している。 On the opposing surfaces of the pair of jaws 4, a reference surface 16 that is a flat surface constituting the first positioning structure is provided, and a fastening surface 17 that is orthogonal to the reference surface 16 is further provided. The fastening surface 17 in the first arm 1 is provided on the rear surface side of the jaw portion 4, and the fastening surface 17 in the second arm 2 is provided on the front surface side of the jaw portion 4. A screw hole 18 is formed in a penetrating shape at two locations on the upper and lower sides of the fastening surface 17, and the screw structure is composed of the screw hole 18 and a hexagon socket head bolt (bolt) 19 screwed into the hole 18. doing.

図３に示すように圧着ダイ１５は、断面がＬ字状の基部２２と、基部２２に連続して対向する圧着ダイ１５へ向かって突出する刃部２３とを一体に備えた、上下に長い金属粉末射出成形品からなる。第１アーム１に装着される圧着ダイ１５の刃部２３には、先すぼまり状の圧着刃２４と、Ｕ字状の逃げ凹部２５とが交互に形成してある。この実施例では、刃部２３の上側から下側へ向かって、サイズが徐々に大きくなる６個の圧着刃２４を設けた。また、第２アーム２に装着される圧着ダイ１５の刃部２３には、Ｕ字状の折曲刃２６と、隣りあう折曲刃２６を区分する先すぼまり状の区分突起２７とが交互に形成してある。折曲刃２６は、先の圧着刃２４に対応して６個設けてある。 As shown in FIG. 3, the crimping die 15 has a base portion 22 having an L-shaped cross section and a blade portion 23 that protrudes toward the crimping die 15 that continuously faces the base portion 22, and is vertically long. It consists of a metal powder injection molded product. The blade portion 23 of the crimping die 15 attached to the first arm 1 is formed with alternately tapered tapered blades 24 and U-shaped relief recesses 25 alternately. In this embodiment, six crimping blades 24 whose size gradually increases from the upper side to the lower side of the blade part 23 are provided. In addition, the blade portion 23 of the crimping die 15 attached to the second arm 2 has a U-shaped bent blade 26 and a tapered projection 27 that separates adjacent bent blades 26. They are formed alternately. Six bending blades 26 are provided corresponding to the previous crimping blades 24.

基部２２のあご部４への装着面には、先の基準面１６で受止められる位置決め面３０と、先の締結面１７に接合される装着面３１とが直交状に形成してある（図５参照）。第１位置決め構造は、あご部４に設けた基準面１６と、圧着ダイ１５に設けた位置決め面３０とで構成してある。装着面３１を含む平坦壁の上下には、先の六角穴付ボルト１９のねじ軸部１９ａを挿通するための装着溝３２が形成され、さらに装着溝３２の周縁に沿って、六角穴付ボルト１９の操作頭部１９ｂを受入れる締結座３３が凹み形成してある。上下の装着溝３２は、それぞれ溝中心が位置決め面３０に対して３５度傾斜する状態で形成してあり、先の平坦壁の周縁において開口している。 On the mounting surface of the base portion 22 on the jaw portion 4, a positioning surface 30 received by the previous reference surface 16 and a mounting surface 31 joined to the previous fastening surface 17 are formed orthogonally (see FIG. 5). The first positioning structure includes a reference surface 16 provided on the jaw portion 4 and a positioning surface 30 provided on the crimping die 15. At the top and bottom of the flat wall including the mounting surface 31, a mounting groove 32 for inserting the screw shaft portion 19 a of the hexagon socket head bolt 19 is formed. Further, along the periphery of the mounting groove 32, the hexagon socket head bolt A fastening seat 33 for receiving 19 operation heads 19b is formed as a recess. Each of the upper and lower mounting grooves 32 is formed in a state where the groove center is inclined by 35 degrees with respect to the positioning surface 30 and is opened at the peripheral edge of the flat wall.

上記のように、装着溝３２を圧着ダイ１５の周縁において開口させると、圧着ダイ１５を締結面１７に沿ってスライドさせることにより、圧着ダイ１５をねじ軸部１９ａに対して斜めにスライドさせながら着脱することができる。従って、圧着ダイ１５をあご部４に着脱するとき、図３に示すように、六角穴付ボルト１９はねじ穴１８にねじ込んだままでよく、その操作頭部１９ｂが締結座３３から浮き離れているだけでよい。装着溝３２の溝中心が位置決め面３０に対して斜めに傾斜してあると、圧着ダイ１５をあご部４から分離するとき、圧着ダイ１５を装着溝３２の溝内面に沿ってスライドさせながら分離できる。このとき、取外し途中の圧着ダイ１５のスライド方向は、他方の圧着ダイ１５の位置決め面３０と概ね平行になっており、従って取外し途中の圧着ダイ１５が他方の圧着ダイ１５に接当するのを防止しながら、簡便に着脱できることとなる。 As described above, when the mounting groove 32 is opened at the periphery of the crimping die 15, the crimping die 15 is slid along the fastening surface 17, and the crimping die 15 is slid obliquely with respect to the screw shaft portion 19 a. Detachable. Therefore, when the crimping die 15 is attached to and detached from the jaw portion 4, as shown in FIG. 3, the hexagon socket head bolt 19 may remain screwed into the screw hole 18, and its operating head 19b is lifted away from the fastening seat 33. Just do it. When the groove center of the mounting groove 32 is inclined with respect to the positioning surface 30, when the crimping die 15 is separated from the jaw portion 4, the crimping die 15 is separated while sliding along the groove inner surface of the mounting groove 32. it can. At this time, the sliding direction of the crimping die 15 in the middle of removal is substantially parallel to the positioning surface 30 of the other crimping die 15, so that the crimping die 15 in the middle of removal contacts the other crimping die 15. It can be easily attached and detached while preventing.

位置決め面３０を基準面１６に接当させることにより、圧着ダイ１５をあご部４に対して位置決めできる。しかし、この状態で圧着ダイ１５を六角穴付ボルト１９で締結しても、一対の圧着ダイ１５・１５の上下位置を正確に位置決めすることはできない。装着溝３２と六角穴付ボルト１９との間に隙間が存在し、この隙間の範囲内で圧着ダイ１５の上下位置が変動できるからである。このような不具合を一掃するために、本発明においては、一対の圧着ダイ１５・１５の間に、両圧着ダイ１５・１５の上下方向の位置決めを行う第２位置決め構造を設けている。 By bringing the positioning surface 30 into contact with the reference surface 16, the crimping die 15 can be positioned with respect to the jaw portion 4. However, even if the crimping die 15 is fastened with the hexagon socket head cap bolt 19 in this state, the vertical positions of the pair of crimping dies 15 and 15 cannot be accurately positioned. This is because there is a gap between the mounting groove 32 and the hexagon socket head cap bolt 19, and the vertical position of the crimping die 15 can vary within this gap. In order to eliminate such problems, in the present invention, a second positioning structure is provided between the pair of crimping dies 15 and 15 for positioning the crimping dies 15 and 15 in the vertical direction.

具体的には、図１に示すように、圧着ダイ１５の長手方向の中央部近傍に位置する区分突起２７の突端に位置決め突起３５を設け、この区分突起２７に対応する逃げ凹部２５の内奥に位置決め凹部３６を形成して第２位置決め構造とした。位置決め突起３５の突端は半円状に丸められており、同様にＶ字溝状の位置決め凹部３６の溝底部分は半円状に丸められている。位置決め突起３５と位置決め凹部３６の半円部分の半径寸法は一致させてある。従って、両圧着ダイ１５・１５を圧着姿勢にして、両者３５・３６を互いに係合させた状態では、一対の圧着ダイ１５・１５を上下に位置決めできる。さらに、圧着刃２４の中心と折曲刃２６の中心とを正確に一致させて、両者２４・２６の間に形成される隙間量を均一化できる。なお、圧着端子を圧着した状態では、圧着端子およびリード線の挟み厚さの分だけ一対の圧着ダイ１５・１５の間に隙間が残るので、位置決め突起３５が圧着作業の邪魔になることはない。位置決め突起３５が形成してある中央の区分突起２７に隣接する区分突起２７の先端の下部に突片が形成してあるが、これは区分突起２７の外形を圧着刃２４の外形線に沿わせるためであって、突片自体に位置決め作用はない。 Specifically, as shown in FIG. 1, a positioning projection 35 is provided at the projecting end of the segment projection 27 located in the vicinity of the central portion in the longitudinal direction of the crimping die 15, and the inside of the relief recess 25 corresponding to the segment projection 27 is provided. A positioning recess 36 is formed in the second positioning structure. The protruding end of the positioning projection 35 is rounded in a semicircular shape. Similarly, the groove bottom portion of the V-shaped groove-shaped positioning recess 36 is rounded in a semicircular shape. The radial dimensions of the semicircular portions of the positioning projection 35 and the positioning recess 36 are made to coincide. Therefore, in a state where both the crimping dies 15 and 15 are in the crimping posture and the both 35 and 36 are engaged with each other, the pair of crimping dies 15 and 15 can be positioned vertically. Furthermore, the center of the crimping blade 24 and the center of the bending blade 26 can be made to coincide with each other, so that the amount of gap formed between the both 24 and 26 can be made uniform. In the state where the crimp terminal is crimped, a gap remains between the pair of crimp dies 15 and 15 by the thickness between the crimp terminal and the lead wire, so that the positioning protrusion 35 does not interfere with the crimping operation. . A projecting piece is formed at the lower portion of the tip of the segment projection 27 adjacent to the center segment projection 27 on which the positioning projection 35 is formed, and this causes the outer shape of the segment projection 27 to follow the contour line of the crimping blade 24. Therefore, the projecting piece itself has no positioning action.

一対の圧着ダイ１５は、圧着刃２４および折曲刃２６のサイズや形状の違いに応じて複数組が用意してあり、ユーザーは圧着処理すべき圧着端子の違いに応じて、適合する圧着ダイ１５を使用することができる。圧着ダイ１５をあご部４から取外す場合には、六角穴付ボルト１９を緩めてその操作頭部１９ｂを締結座３３から僅かに離す。この状態で、図４に示すように圧着ダイ１５を装着溝３２の溝内周面に沿ってスライド操作することにより、あご部４の締結面１７および六角穴付ボルト１９から取外すことができる。なお、先に説明したように、圧着ダイ１５は金属粉末射出成形法で１個の部品として構成するが、成形が終了した時点の位置決め面３０および装着面３１の精度は充分に確保されている。従って、成形後の圧着ダイ１５の位置決め面３０および装着面３１に仕上加工を施す必要はなく、成形された状態のままであご部４に組付けることができる。 A plurality of pairs of crimping dies 15 are prepared according to the difference in size and shape of the crimping blade 24 and the bending blade 26, and the user can adapt the crimping die according to the difference in the crimping terminal to be crimped. 15 can be used. When removing the crimping die 15 from the jaw portion 4, the hexagon socket head bolt 19 is loosened and the operation head 19 b is slightly separated from the fastening seat 33. In this state, the crimping die 15 can be removed from the fastening surface 17 of the jaw portion 4 and the hexagon socket head cap bolt 19 by sliding the crimping die 15 along the inner circumferential surface of the mounting groove 32 as shown in FIG. As described above, the crimping die 15 is configured as one component by the metal powder injection molding method. However, the positioning surface 30 and the mounting surface 31 are sufficiently accurate when molding is completed. . Therefore, it is not necessary to finish the positioning surface 30 and the mounting surface 31 of the crimping die 15 after molding, and the crimping die 15 can be assembled to the jaw part 4 while being molded.

新たな圧着ダイ１５をあご部４に組付ける場合には、上側の装着溝３２の直線状の溝内周面を六角穴付ボルト１９のねじ軸部１９ａにあてがった状態で、圧着ダイ１５を締結面１７に沿って斜めにスライドさせて、圧着ダイ１５の位置決め面３０を基準面１６に密着させる。他方の圧着ダイ１５も同様にして仮組みし、指先で六角穴付ボルト１９をねじ込んで仮固定する。この状態で、一対の握り柄５を握って圧着ダイ１５を圧着姿勢にすると、位置決め突起３５と位置決め凹部３６とが互いに係合して、一対の圧着ダイ１５・１５の上下方向の位置決めを行う。この状態のままで、六角穴付ボルト１９を棒レンチ、あるいはプライヤでねじ込んで圧着ダイ１５を強固に固定する。圧着ダイ１５をあご部４に六角穴付ボルト１９で固定した状態では、図５に示すように、一対の圧着ダイ１５の刃部２３の前後面は面一になっている。 When assembling a new crimping die 15 to the jaw portion 4, the crimping die 15 is mounted with the straight groove inner peripheral surface of the upper mounting groove 32 applied to the screw shaft portion 19 a of the hexagon socket head bolt 19. By sliding obliquely along the fastening surface 17, the positioning surface 30 of the crimping die 15 is brought into close contact with the reference surface 16. The other crimping die 15 is also temporarily assembled in the same manner, and a hexagon socket head cap screw 19 is screwed in with a fingertip and temporarily fixed. In this state, when the crimping die 15 is brought into the crimping posture by gripping the pair of grips 5, the positioning projections 35 and the positioning recesses 36 are engaged with each other to position the pair of crimping dies 15 and 15 in the vertical direction. . In this state, the hexagon socket head cap bolt 19 is screwed with a bar wrench or pliers to firmly fix the crimping die 15. In a state where the crimping die 15 is fixed to the jaw portion 4 with the hexagon socket head cap bolt 19, the front and rear surfaces of the blade portion 23 of the pair of crimping dies 15 are flush with each other as shown in FIG.

図６は本発明に係る圧着工具の別の実施例を示す。そこでは、第１アーム１と第２アーム２の作用部側に一対のあご部４・４をピン４０で連結し、さらにあご部４どうしを支点ピン４１を備えた連結リンク４２で連結して、あご部４側をトグル構造状に構成した。この実施例における圧着工具は、上記の圧着工具と同様に、各あご部４と圧着ダイ１５との間に、基準面１６と位置決め面３０とからなる第１位置決め構造が設けてある。また、一対の圧着ダイ１５の間に、位置決め突起３５と位置決め凹部３６とからなる第２位置決め構造が設けてある。したがって、トグル構造の圧着工具においても、圧着刃２４の中心と折曲刃２６の中心とを適正に一致させることができる。他は先の実施例と同じであるので、同じ部材に同じ符号を付してその説明を省略する。 FIG. 6 shows another embodiment of the crimping tool according to the present invention. There, a pair of jaws 4 and 4 are connected by pins 40 to the working part side of the first arm 1 and the second arm 2, and the jaws 4 are connected by a connecting link 42 having a fulcrum pin 41. The jaw part 4 side is configured in a toggle structure. In the crimping tool in this embodiment, a first positioning structure including a reference surface 16 and a positioning surface 30 is provided between each jaw 4 and the crimping die 15 in the same manner as the above-described crimping tool. In addition, a second positioning structure including a positioning projection 35 and a positioning recess 36 is provided between the pair of crimping dies 15. Therefore, also in the toggle structure crimping tool, the center of the crimping blade 24 and the center of the bending blade 26 can be properly matched. Since others are the same as the previous embodiment, the same reference numerals are assigned to the same members, and descriptions thereof are omitted.

図７ないし図１０は、本発明に関連する圧着工具の実施例を示す。図７に示すように、圧着工具は、あご部４を一体に備えた第１アーム１と、あご部４を一体に備えた第２アーム２とを、Ｘ字状に組んでボルト（連結軸）３およびナットで相対揺動可能に連結して構成してある。第１アーム１側のあご部４には、圧着刃２４と逃げ凹部２５とが交互に形成してあり、第２アーム２側のあご部４には、折曲刃２６と区分突起２７とが交互に形成してある。このように、あご部４に圧着刃２４あるいは折曲刃２６が一体に形成してある場合には、両アーム１・２を組んでしまうと圧着刃２４と折曲刃２６を互いに位置決めすることはできなくなる。 7 to 10 show an embodiment of a crimping tool related to the present invention. As shown in FIG. 7, the crimping tool includes a first arm 1 integrally provided with a jaw portion 4 and a second arm 2 integrally provided with a jaw portion 4 assembled in an X shape to form a bolt (connection shaft). ) 3 and nuts are connected so as to be able to swing relative to each other. On the jaw part 4 on the first arm 1 side, crimping blades 24 and relief recesses 25 are alternately formed, and on the jaw part 4 on the second arm 2 side, a bending blade 26 and a dividing protrusion 27 are provided. They are formed alternately. In this way, when the crimping blade 24 or the bending blade 26 is integrally formed on the jaw part 4, when the arms 1 and 2 are assembled, the crimping blade 24 and the bending blade 26 are positioned relative to each other. Can not.

そこで、この実施例においては、第１アーム１の第１ブランク４５と第２アーム２の第２ブランク４６を形成し、両ブランク４５・４６を位置決めした状態でボルト３用の挿通穴５２の加工を行うようにした。両ブランク４５・４６を位置決めするために、上端および下端に位置する区分突起２７の突端に位置決め突起４９を設け、対応する２個の逃げ凹部２５の内奥に位置決め凹部５０を設けている。位置決め突起４９と位置決め凹部５０は、先の実施例における位置決め突起３５と位置決め凹部３６と同様に半円状に形成してあり、半円部分の半径寸法は一致させてある。なお、第１ブランク４５のあご部４は折曲線４７に沿って後面側へ折曲げてあり、第２ブランク４６のあご部４は折曲線４８に沿って前面側へ折曲げてあり、これにより圧着刃２４と折曲刃２６とを面一状に係合することができる。 Therefore, in this embodiment, the first blank 45 of the first arm 1 and the second blank 46 of the second arm 2 are formed, and the insertion hole 52 for the bolt 3 is processed with both blanks 45 and 46 positioned. To do. In order to position both blanks 45 and 46, positioning protrusions 49 are provided at the protruding ends of the division protrusions 27 located at the upper end and the lower end, and positioning recesses 50 are provided inside the corresponding two relief recesses 25. The positioning projection 49 and the positioning recess 50 are formed in a semicircular shape in the same manner as the positioning projection 35 and the positioning recess 36 in the previous embodiment, and the radial dimensions of the semicircular portions are matched. The jaw portion 4 of the first blank 45 is bent to the rear side along the folding line 47, and the jaw portion 4 of the second blank 46 is bent to the front side along the folding line 48. The crimping blade 24 and the bending blade 26 can be engaged with each other.

穴あけ加工を行う場合には、図９および図１０に示すように、両ブランク４５・４６を上下に重ねたのち、あご部４・４どうしを互いに噛みあわせて、位置決め突起４９と位置決め凹部５０を上下２個所で係合させ、一対のあご部４・４を上下に位置決めする。この状態の圧着刃２４の中心と折曲刃２６の中心は正確に一致している。従って、上下に重ねた状態の両ブランク４５・４６を治具に装填してクランプで固定したのち、図１０に示すように、ドリル５１で穴あけ加工を施して挿通穴５２を形成することにより、圧着刃２４と折曲刃２６と挿通穴５２の位置関係を適正化できる。最後に、ボルト３を挿通穴５２に挿通してナットをねじ込むことにより、あご部４を一体に備えた第１アーム１と第２アーム２を開閉可能に連結して、プライヤ型の圧着工具を完成することができる。 When drilling, as shown in FIGS. 9 and 10, after the blanks 45 and 46 are stacked one on top of the other, the jaws 4 and 4 are engaged with each other so that the positioning projection 49 and the positioning recess 50 are formed. The pair of jaws 4 and 4 are vertically positioned by engaging at two upper and lower positions. In this state, the center of the crimping blade 24 and the center of the bending blade 26 exactly coincide. Therefore, after loading both blanks 45 and 46 in the state where they are stacked one above the other and fixing them with clamps, as shown in FIG. 10, drilling is performed with a drill 51 to form the insertion holes 52, The positional relationship among the crimping blade 24, the bending blade 26, and the insertion hole 52 can be optimized. Finally, the bolt 3 is inserted into the insertion hole 52 and the nut is screwed in, thereby connecting the first arm 1 and the second arm 2 integrally provided with the jaw portion 4 so as to be openable and closable. Can be completed.

上記の実施例では、区分突起２７に位置決め突起３５を設けたが、位置決め突起３５を逃げ凹部２５に設け、位置決め凹部３６を区分突起２７に設けることができる。このように、位置決め突起３５と位置決め凹部３６は、逃げ凹部２５と区分突起２７を利用して形成するのが好ましいが、その必要はなく、一対の圧着ダイ１５・１５の間であればどこに設けてあってもよく、複数個所に設けてあってもよい。位置決め突起３５と位置決め凹部３６は、互いに係合する関係である必要はなく、第１位置決め構造のように互いに接当して位置決めする構造であってもよい。 In the above embodiment, the positioning protrusion 35 is provided on the sorting protrusion 27. However, the positioning protrusion 35 can be provided on the escape recess 25 and the positioning recess 36 can be provided on the sorting protrusion 27. As described above, the positioning protrusion 35 and the positioning recess 36 are preferably formed by using the relief recess 25 and the segment protrusion 27, but this is not necessary, and it is provided anywhere between the pair of crimping dies 15 and 15. May be provided, or may be provided at a plurality of locations. The positioning protrusion 35 and the positioning recess 36 do not have to be engaged with each other, and may have a structure in which they are in contact with each other as in the first positioning structure.

あご部４に固定されるねじ軸部１９ａと、ねじ軸部１９ａにねじ込まれるナットとでねじ構造を構成することができる。上下の装着溝３２は、それぞれの溝中心が非平行に設けてあってもよく、例えば、下側の装着溝３２をボルト１９のねじ軸部１９ａに係合したのち、圧着ダイ１５の全体を先のねじ軸部１９ａの周りに回動させて、上側の装着溝３２を上側のボルト１９に係合することができる。 A screw structure can be constituted by a screw shaft portion 19a fixed to the jaw portion 4 and a nut screwed into the screw shaft portion 19a. The upper and lower mounting grooves 32 may be provided so that the respective groove centers are non-parallel. For example, after the lower mounting groove 32 is engaged with the screw shaft portion 19 a of the bolt 19, the entire crimping die 15 is moved. The upper mounting groove 32 can be engaged with the upper bolt 19 by rotating around the previous screw shaft portion 19a.

本発明は、実施例で説明した圧着工具以外に、あご部４の対向面に一対の圧着ダイ１５が着脱可能にねじ構造で締結してある圧着工具の全てに適用することができる。例えば、交又する状態で連結した第２レバー（あご部）の先端同士を連結ピンで連結した特許文献１の圧着工具にも問題なく適用できる。 The present invention can be applied to all the crimping tools in which a pair of crimping dies 15 are detachably fastened to the opposing surface of the jaw portion 4 with a screw structure in addition to the crimping tools described in the embodiments. For example, the present invention can be applied without any problem to the crimping tool of Patent Document 1 in which the tips of the second levers (chin portions) connected in a crossing state are connected with a connecting pin.

１第１アーム
２第２アーム
３ボルト（連結軸）
４あご部
１５圧着ダイ
１６基準面
１９六角穴付ボルト（ボルト）
２４圧着刃
２５逃げ凹部
２６折曲刃
２７区分突起
３２装着溝
３５位置決め突起
３６位置決め凹部 1 First arm 2 Second arm 3 Bolt (connection shaft)
4 Jaw 15 Crimping die 16 Reference surface 19 Hexagon socket head cap screw (bolt)
24 Crimping blade 25 Escape recessed part 26 Bending blade 27 Division protrusion 32 Mounting groove 35 Positioning protrusion 36 Positioning recessed part

Claims

A pair of jaws (4, 4) are provided on the working part side of the first arm (1) and the second arm (2), and a pair of crimping dies (15) are provided on the opposing surfaces of both jaws (4, 4). 15) is a crimping tool which is detachably fastened with a screw structure,
On one crimping die (15), a plurality of crimping blades (24) and relief recesses (25) are alternately formed,
On the other crimping die (15), a plurality of bending blades (26) and segment protrusions (27) are alternately formed,
Between the jaw part (4) and the crimping die (15), a first positioning structure for positioning in the left-right direction is provided,
Between a pair of crimping dies (15, 15), Ri Oh and second positioning structure for positioning in the vertical direction is provided,
The second positioning structure is composed of a positioning projection (35) and a positioning recess (36) formed at the inner back of the relief recess (25) and the projecting end of the section projection (27),
In the process of assembling the crimping die (15) to the jaw (4), the positioning projection (35) and the positioning recess (36) are engaged, and the center of the crimping blade (24) and the bending blade (26) are engaged. crimping tool according to claim Rukoto is matched with the center.

A crimping die (15, 15) is fastened and fixed to each of the pair of jaws (4, 4) with a plurality of screw structures,
A mounting groove (32) for inserting the screw shaft portion (19a) is formed in the crimping die (15),
By opening at the periphery of the crimping die mounting groove (32) (15), crimping tool according to claim 1 that can attach and detach the crimping die (15) wherein the threaded shaft portion with respect to (19a).

A pair of jaws (4, 4), the fastening surface (17) and have been found provided with a reference surface for positioning the pressure Chakudai (15) (16),
The crimping die (15) is directed to the base (22) having an L-shaped cross section supported by the reference surface (16) and the fastening surface (17), and the crimping die (15) continuously facing the base (22). And a protruding blade part (23),
First positioning structure, a reference surface provided on the jaws (4) (16), the crimping dies (15) of the base (22) positioning surfaces provided in (30) and de-configuration Tare Ru claim 1 or 2. The crimping tool according to 2.

The first arm (1) and the second arm (2) are connected in an X shape by the connecting shaft (3), and the jaws (4, 4) are integrally provided at the working ends of both arms (1, 2). The crimping tool according to any one of claims 1 to 3, wherein the crimping tool is configured in a pliers shape .

The crimping die (15) is fastened with a bolt (19) screwed into the jaw (4),
The crimping tool according to any one of claims 2 to 4, wherein a fastening seat (33) for receiving the operation head (19b) of the bolt (19) is formed along the periphery of the mounting groove (32) .

The groove centers of the pair of mounting grooves (32) are provided in parallel so as to be inclined with respect to the positioning surface (30),
In a state where the first arm (1) and the second arm (2) are in the open posture, one crimping die (15) is placed along a direction substantially parallel to the positioning surface (30) of the other crimping die (15). crimping tool according to any one of claims 2 that can be detachably 5.