JP3861382B2 - Wire rod cutting device - Google Patents

Description

【数２】

となるように、選定される。
【００４４】
これは、以下の理由による。
ベース２２に対する端子盤２４の基準位置に対する誤差ΔＸ，ΔＹによる各端子２４Ａ，２４Ｂ，２４Ｃ，２４Ｄのベース２２に対する誤差が必ず発生するのに対して、切断部材５５の各切断刃５５ｂ，５５ｃ，５５ｄは、ベース２２に対して常に正確に位置決めされる。従って、各切断刃５５ｂ，５５ｃ，５５ｄは、各端子２４Ａ，２４Ｂ，２４Ｃ，２４Ｄに対して、端子盤２４の誤差ΔＸ，ΔＹだけ位置決めの誤差を生ずることになる。
これに対して、各切断刃５５ｂ，５５ｃ，５５ｄによる端末線４０ａ，４２ａ，４４ａ，４６ａの切断位置は、図２７に示すように、できるだけ端子２４Ａ，２４Ｂ，２４Ｃ，２４Ｄの下辺及び外辺に近接することが望ましい。これは、各端末線４０ａ，４２ａ，４４ａ，４６ａと対応する端子２４Ａ，２４Ｂ，２４Ｃ，２４Ｄとの接合長さが長くなり、導通が確実になるからである。
【００４５】
ところが、上述したように、切断部材５５と端子盤２４そして端子２４Ａ，２４Ｂ，２４Ｃ，２４Ｄと間に、上記誤差ΔＸ，ΔＹが発生することから、この誤差ΔＸ，ΔＹによって、切断刃５５ｂ，５５ｃ，５５ｄに対する端子の相対位置が、図２８にて点線で示すように、ずれる可能性がある。
これにより、切断刃５５ｄに対する端子２４Ａの相対位置が、図２８にて符号２４Ａ１で示す外側の位置にずれた場合には、図２９（Ａ）に示すように、端末線４０ａと端子２４Ａとの接合長さが短くなるものの、実用上は、問題なく接合が行なわれることになる。
これに対して、切断刃５５ｄに対する端子２４Ａの相対位置が、図２８にて符号２４Ａ２で示す内側の位置にずれた場合には、図２９（Ｂ）に示すように、端末線４０ａが端子２４Ａからはみだすことになり、このはみだし部分４０ａ１は端子２４Ａに固定されずに、自由に動くことから、他の端子部に接触したり、実装時に他の部品と干渉してしまうという可能性があり、不良品として扱われることになる。
【００４６】
ここで、前述したように、切断部材５５の各切断刃５５ｂ，５５ｃ，５５ｄが、端子２４Ａ，２４Ｂ，２４Ｃ，２４Ｄに対して、Δｘ，Δｙだけずれて配設されることにより、切断部材５５に対する端子２４Ａ，２４Ｂ，２４Ｃ，２４Ｄの相対位置がΔＸ，ΔＹだけずれてしまったとしても、切断部材５５の各切断刃５５ｂ，５５ｃ，５５ｄと端子２４Ａ，２４Ｂ，２４Ｃ，２４Ｄとの相対位置関係は、図３０に示すようになる。これにより、例えば端子２４Ａが図３０にて符号２４Ａ３で示す外側の位置にずれた場合には、図３１（Ａ）に示すようになり、図２９に示す場合よりも接合長が長くなる。
これに対して、切断刃５５ｄに対する端子２４Ａの相対位置が、図３０にて符号２４Ａ４で示す内側の位置にずれた場合、図３１（Ｂ）に示すように、端末線４０ａが端子２４Ａからはみだすことなく、端子２４Ａ内に収まることになり、良品として扱われることになる。
【００４７】
図３２は、上述したチャック５１，５２及び５３，５４の具体的な構成例を示している。
図３２において、チャック５１は、断面が凹状に形成されていると共に、チャック５２は、これに対応して断面が凸状に形成されている。これにより、チャック５１及び５２は、図３３に示すように、互いに組み合わせられるようになっており、組み合わせられた状態にて、図３３にて、水平方向に幅ｂを、また垂直方向に関して幅ａを有するようになっている。
ここで、好ましくは、上記幅ａは、挟持すべき端末線の外径をＤとしたとき、Ｄの０．１乃至０．５倍となるように選定され、また幅ｂは、（Ｄ＋ａ）となるように選定されている。
このような構成のチャック５１及び５２によれば、端末線の線材Ｗを挟持したとき、図３４に示すように、線材Ｗは、チャック５１のＡ１辺及びチャック５２のＡ２辺、そしてチャック５１のＥ１辺及びチャック５２のＥ２辺によって挟持されると共に、チャック５１のＢ１辺とチャック５２のＢ２辺，Ｃ１辺とＣ２辺そしてＤ１辺とＤ２辺との間には、上記幅ａに等しい間隙がある。
尚、チャック５３，５４も、チャック５１，５２と同様に構成されている。
【００４８】
ここで、図１７に示すように、線材切断装置５０の揺動部５０ａが回転軸５６の周りに揺動すると、チャック５１，５２そして５３，５４は、図３４にて矢印Ｐ方向に移動することになり、これらチャック５１乃至５４により挟持された端末線４０ａ，４２ａ，４４ａ，４６ａの線材Ｗは、図３４にて右方の端子側が切断部材５５により押さえられていることから、矢印Ｑ方向の張力を受けることになる。これにより、線材Ｗは、チャック５１のＡ１辺，Ｅ１辺とチャック５２のＡ２辺，Ｅ２辺の間でも滑り摩擦力が生ずることになる。
ところが、チャック５１の辺Ｄ１，Ｅ１の間の角部とチャック５２の辺Ｃ２，Ｄ２の間の角部が、上記張力Ｑが加えられた線材Ｗに対して食い込むことになり、実質的に線材Ｗは、チャック５１，５２間に確実に保持される。かくして、線材Ｗは、チャック５１，５２により保持されるので、切断部材５５の切断刃５５ｂ，５５ｃ，５５ｄの当接によって切断され得なかった端末線４０ａ，４２ａ，４４ａまたは４６ａが、揺動部５０ａの揺動によって、確実に上記切断刃５５ｂ，５５ｃ，５５ｄによって切断されることになる。
【００４９】
図３５乃至図３８は、保持手段としてのチャック５１，５２，５３，５４の断面形状の他の構成例を示している。
図３５においては、チャック５１，５２は、二本の溝を有しており、チャック５３，５４は、これに対応して、二本の突条部を有している。これにより、線材Ｗは、チャック５１乃至５４により挟持されたとき、上記溝及び突条部によって、二重に把持されることになり、線材Ｗがより一層確実に保持されることになる。
図３６においては、チャック５１，５２は、Ｖ字形の溝を有しており、チャック５３，５４は、これに対応して、一つの半円形断面の突条部を備えている。これにより、線材Ｗは、チャック５１乃至５４の間で、このＶ字形の溝と突条部によって挟持される。この場合、チャック５１，５２の溝がＶ字形であることから、容易に形成されるので、加工コストが低減されることになる。
【００５０】
図３７においては、チャック５１，５２は、蟻溝を有しており、チャック５３，５４は、これに対応して、四角形の断面の突条部を有している。これにより、線材Ｗは、チャック５１乃至５４の間で、この蟻溝と突条部によって挟持されると共に、蟻溝の鋭角の角部が線材Ｗに食い込むことにより、より確実に線材Ｗを保持できるようになっている。
図３８においては、チャック５１乃至５４は、図３２と同様に形成されており、この場合、線材Ｗが、チャック５１（または５３）のＣ１辺とチャック５２（または５４）のＣ２辺の間に挟持され、その他の辺では間隙を有するように、構成されている。これにより、線材Ｗは、チャック５１乃至５４の間で、Ｃ１辺及びＣ２辺の間に挟持されると共に、チャック５２（または５４）のＣ２辺とＤ２辺の間の角部が線材Ｗに食い込むことにより、より確実に線材Ｗを保持できるようになっている。
【００５１】
図３９及び図４０は、上述した切断部材５５の切断刃５５ｂ，５５ｃ，５５ｄの具体的な構成例を示している。
先づ、図３９において、切断刃５５ｃ，５５ｄは、Ｌ字形に屈曲した各部分にて、それぞれ内側の垂直面と外側の鋭角状の傾斜面とから構成されている。
また、図４０において、切断刃５５ｂは、それぞれ異なる傾斜角度で外側に向かって傾斜した二つの面から構成されている。
尚、各切断刃５５ｂ，５５ｃ，５５ｄの形状は、これに限らず、例えば図４１に示すように、切断刃５５ｂ，５５ｃ，５５ｄは、外側の垂直面と内側の鋭角状の傾斜面とから構成されていてもよい。また、図４２に示すように、切断刃５５ｃ，５５ｄは、図４０に示した切断刃５５ｂと同様に、それぞれ異なる傾斜角度で外側に向かって傾斜した二つの面から構成されていてもよい。さらに、切断刃５５ｂ，５５ｃ，５５ｄは、図４３に示すように、互いに逆方向に傾斜した所謂両刃として構成されていてもよい。
【００５２】
これら切断刃５５ｂ，５５ｃ，５５ｄの形状は、何れも加工性を考慮して決定されたものであり、例えば図３９に示した切断刃５５ｃ，５５ｄは、エンドミル６２を使用したフライス加工により、先づ図４４に示すように内側の垂直面が加工され、続いて図４５に示すように外側の傾斜面が加工されることにより、容易に形成される。
また図４０に示した切断刃５５ｂは、同様にエンドミル６２を使用したフライス加工により、先づ図４６に示すように内側の傾斜面が加工され、続いて図４７に示すように外側の傾斜面が加工されることにより、容易に形成される。
【００５３】
図４８は、異なる端子配置を備えたヘッド７０を示している。
このようなヘッド７０においては、三つのコイル７１，７２，７３が設けられており、これらのコイル７１，７２，７３の巻線からの二つの端末線７１ａ，７１ｂ，７２ａ，７２ｂ，７３ａ，７３ｂが、それぞれ端子７４Ａ，７４Ｂ，７４Ｃ，７４Ｄ，７４Ｅ，７４Ｆに向かって延びている。
このようなヘッド７０の場合、端末線７１ａ，７１ｂ，７２ａ，７２ｂ，７３ａ，７３ｂを切断するための切断装置７５は、その切断刃が、図４９に示すように、各端子７４Ａ，７４Ｂ，７４Ｃ，７４Ｄ，７４Ｅ，７４Ｆにて、それぞれ角部を有するように、全体として階段状に形成されている。
【００５４】
これによって、各端末線７１ａ，７１ｂ，７２ａ，７２ｂ，７３ａ，７３ｂが、それぞれ切断装置７５の切断刃によって、横滑りを生ずることなく、確実に切断される。
尚、この場合、端子７４Ａ，７４Ｂ，７４Ｃ，７４Ｄ，７４Ｅ，７４Ｆに対する切断装置７５の切断刃の位置決めは、上記端子の位置決め誤差のバラツキの幅に対応して、適宜に選定されるものである。
【００５５】
ところで本発明は上記実施形態に限定されない。
本発明の実施形態では、ＶＨＳのダブルアジマスヘッドを例にして説明しているが、これに限らない。ビデオヘッドとしては、ＶＨＳのタイプではダブルアジマスヘッドやシングルアジマスヘッドがあり、８ｍｍビデオヘッドでは、やはりダブルアジマスヘッドやシングルアジマスヘッドがある。あるいはビデオヘッド以外にＤＡＴのヘッド等に対しても本発明は適用することができる。
またビデオヘッドのみならず巻線を必要とするヘッドおよびワイヤ（端末線）を利用するもので、その端末線を切断するものであれば、その他あらゆる領域のものに幅広く本発明を適用することができる。また対象物であるヘッドの形状も図示の実施形態に限定されるものではない。そして対象物であるヘッドの形状に応じて本発明の線材切断装置の形状もそれに合せて変化する。
また、上述した実施形態においては、端子２４Ａ，４Ｂ，２４Ｃ，２４Ｄは、図４乃至図１７では、一列に並んでおり、また図２４乃至図３０及び図４８，図４９においては、段差を有するように整列しているが、何れの場合にも、また他の端子配置であっても、本発明を適用できることは明らかである。
【００５６】
【発明の効果】
以上述べたように、本発明によれば、例えばヘッドの各巻線の端末線が、確実に切断されるようにした、線材切断装置を提供することができる。
【図面の簡単な説明】
【図１】本発明による巻線切断装置の好ましい実施形態を備える巻線装置を示す斜視図である。
【図２】図１の巻線装置の動作を示す図である。
【図３】図２の動作に続く動作を示す図である。
【図４】対象物であるダブルアジマスヘッドの表面側を示す図である。
【図５】図４のヘッドの裏面側を示す図である。
【図６】図４のヘッドの側面を示す図である。
【図７】図４のヘッドを示す斜視図である。
【図８】図４のヘッドのチップと巻線を示す図である。
【図９】別のシングルアジマスヘッドのチップを示す図である。
【図１０】ヘッドを保持するためのワーク治具の例を示す図である。
【図１１】本発明による線材切断装置の要部を示す平面図である。
【図１２】図１１の線材切断装置のＫ−Ｋ線断面図である。
【図１３】ワーク治具Ｊのリードクランパの閉鎖状態及び開放状態を示す概略図である。
【図１４】本発明による線材切断装置の全体を示す平面図である。
【図１５】図１４の線材切断装置の要部を示す部分拡大平面図である。
【図１６】図１４の線材切断装置におけるチャックの閉鎖状態を示す側面図である。
【図１７】図１４の線材切断装置における揺動部の揺動を示す側面図及び平面図である。
【図１８】図１４の線材切断装置における揺動部の揺動による端末線の切断を示す説明図である。
【図１９】図１４の線材切断装置における切断した端末線を廃棄するための残材廃棄パイプを示す概略側面図である。
【図２０】図１４の線材切断装置における切断部材の具体的構成を示す平面図，側面図及び正面図、そしてＣ−Ｃ線断面図である。
【図２１】図２０の切断部材のＤ−Ｄ線断面図である。
【図２２】図２０の切断部材のＥ−Ｅ線断面図である。
【図２３】図２０の切断部材に備えられた切断刃の先端形状を示す概略平面図である。
【図２４】図２３の各切断刃による端末線の切断を示す概略図である。
【図２５】図２３の各切断刃の端子に対する位置決めを説明する概略図である。
【図２６】図２５における端子のヘッドベースに対する位置ずれを説明する概略図である。
【図２７】図２３の各切断刃の端子に対する理想的な位置決めを示す概略図である。
【図２８】図２７の配置による各切断刃と端子の位置ずれによる関係を示す概略図である。
【図２９】図２８の位置ずれに関して、左側の切断刃と（Ａ）外側に最大位置ずれした端子及び（Ｂ）内側に最大位置ずれした端子との関係を示す概略図である。
【図３０】本発明による切断刃の端子に対する位置決めを示す概略図である。
【図３１】図３０の配置による左側の切断刃と（Ａ）外側に最大位置ずれした端子及び（Ｂ）内側に最大位置ずれした端子との関係を示す概略図である。
【図３２】図１４の線材切断装置におけるチャックの具体的構成を示す概略斜視図である。
【図３３】図３２のチャックの閉じた状態を示す断面図である。
【図３４】図３２のチャックによる端末線の把持状態を示す断面図である。
【図３５】図３２のチャックの第一の変形例による端末線の把持状態を示す断面図である。
【図３６】図３２のチャックの第二の変形例による端末線の把持状態を示す断面図である。
【図３７】図３２のチャックの第三の変形例による端末線の把持状態を示す断面図である。
【図３８】図３２のチャックの第四の変形例による端末線の把持状態を示す断面図である。
【図３９】図２０の切断部材の両側の切断刃の具体的形状を示す断面図である。
【図４０】図２０の切断部材の中央の切断刃の具体的形状を示す断面図である。
【図４１】図２０の切断部材の各切断刃の変形例を示す断面図である。
【図４２】図２０の切断部材の両側の切断刃の変形例を示す断面図である。
【図４３】図２０の切断部材の各切断刃の他の変形例を示す断面図である。
【図４４】図３９の切断刃の内側の垂直面のフライス加工を示す概略図である。
【図４５】図３９の切断刃の外側の傾斜面のフライス加工を示す概略図である。
【図４６】図４０の切断刃の内側の傾斜面のフライス加工を示す概略図である。
【図４７】図４０の切断刃の外側の傾斜面のフライス加工を示す概略図である。
【図４８】３つのコイルを有するヘッドにおける端末線と端子との関係を示す概略図である。
【図４９】図４８のヘッドにおける端末線を切断する切断装置の切断刃の形状を示す概略図である。
【図５０】ダブルアジマスヘッドの端末線の端子板の端子に対する配線を示す図である。
【図５１】図５０のヘッドにおける各端末線の切断を示す部分平面図である。
【図５２】図５１の切断における両側の端末線の横滑りを示す図である。
【図５３】段状に配設された端子に関する端末線の切断を示す図である。
【図５４】図５３の切断における端末線の横滑り及びはみだしを示す図である。
【図５５】図５４のはみだしを防止するようにした切断を示す図である。
【図５６】図５３の配置の端子に対する三つの切断刃による切断を示す図である。
【符号の説明】
２０・・・チップ、２２・・・ヘッドベース、２４・・・端子板、４０，４２，４４，４６・・・巻線、４０ａ，４２ａ，４４ａ，４６ａ・・・端末線、５０・・・線材切断装置、５０ａ・・・揺動部、５１，５２，５３，５４・・・チャック（保持手段）、５５・・・切断部材、５５ｂ，５５ｃ，５５ｄ・・・切断刃、５６・・・回転軸、５７，５８・・・支持部、５９・・・残材廃棄パイプ、６０・・・負圧発生装置、６１・・・ダストボックス、６２・・・エンドミル。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a wire rod cutting device for cutting a wire rod, and in particular, after a terminal wire of a magnetic head winding such as a video head or a digital audio tape recorder (DAT) is fixed to a terminal of the head, a surplus terminal wire is removed. The present invention relates to a wire cutting device for cutting.
[0002]
[Prior art]
For example, the video head includes a VHS head and an 8 mm head. Furthermore, the VHS head includes a single azimuth head and a double azimuth head, and the 8 mm head includes a jingle azimuth head and a double azimuth head.
Here, for example, a conventional VHS double azimuth head is configured as shown in FIG.
That is, in FIG. 50, the head 500 includes a chip 501 and a base (made of brass) 502 to which the chip 501 is fixed. The chip 501 has two holes for windings, and windings 503, 504, 505, and 506 made of wires are wound around the cores on both sides of the holes for the respective windings. It has become.
[0003]
Here, a left inner winding 504 and a right inner winding 505 are wound around the two inner cores (I core). A left outer winding 503 and a right outer winding 506 are wound around the two outer cores (C core).
As shown in the figure, the terminal wire 503a of the left outer winding 503 is soldered or bonded to the terminal 507B of the terminal plate 507 on the front surface side of the base 502 through the slit S from the back surface side of the base 502. It has become.
Similarly, the terminal line 504a of the left inner winding 504 passes through the slit S and is soldered or bonded to the terminal 507A. A terminal line 506a of the right outer winding 506 passes through the slit S and is soldered or bonded to the terminal 507C. The terminal line 505a of the right inner winding 505 is soldered or bonded to the terminal 507D.
[0004]
In this case, after the windings 503 to 506 are wound around the cores, the terminal wires 503a to 506a extend toward the corresponding terminals 507A to 507D as shown in FIG. The cutting edge is cut at a time by a cutting member 508 such as a single-blade razor that is brought into contact with the blade tip so as to extend from one terminal 507A to 507D. As a result, the terminal lines 503a to 506a are subjected to terminal processing at the edges of the terminals 507A to 507D, respectively.
[0005]
[Problems to be solved by the invention]
However, in cutting the terminal wires 503a to 506a with such a single-blade cutting member 508, the blade of the cutting member 508 is only brought into contact with the terminal plate 507, so that the surface of the terminal plate 507 is uneven. In such a case, there is a problem that the terminal lines 503a to 506 may not be cut reliably due to the influence of the uneven shape.
[0006]
Further, when the terminal wires 503a to 506a are cut by pulling the free ends of the terminal wires 503a to 506a in a state where the blades of the cutting member 508 are in contact with the terminal wires 503a to 506a, For example, if the angle between the terminal wires 503a and 506a on both sides and the blade of the cutting member 508 is small, the terminal wires 503a and 506a slide sideways as shown by arrows in the drawing as shown in FIG. In particular, as shown in FIG. 52, for example, when the terminal wire 503a is slightly in contact with the terminal 507A in the vicinity of the corner with respect to the terminal 507A, it is particularly easy to skid and the cutting is reliably performed. There was a problem of not getting.
[0007]
Further, when the terminal wires 503a to 506a are cut by simply pulling the free ends of the terminal wires 503a to 506a without using the cutting member 508, the wire material of the winding soldered to the solder terminal portion is used. However, there is a problem that it is detached from the solder terminal portion and causes a conduction failure.
[0008]
Here, when the free ends of the terminal wires 503a to 506a described above are pulled, the wire material of the winding is generally coated with a low friction coating in order to reduce resistance during winding. There has been a problem that the wire is easily detached from a chuck or the like for gripping the free end.
[0009]
On the other hand, the same applies to the case where the terminals 507A to 507D are not arranged in a line and the outer terminals 507A and 507D are arranged so as to be slightly shifted upward in the drawing as shown in FIG. In addition, since the angle θ between the terminal wires 503a and 506a on both sides and the blade of the cutting member 508 becomes smaller, the terminal wires 503a and 506a slide sideways as shown by arrows in the drawing as shown in FIG. In addition, as shown in FIG. 54, for example, when the terminal wire 503a is slightly in contact with the terminal 507A in the vicinity of the corner with respect to the terminal 507A, it is particularly liable to skid and can be cut. There was no problem.
[0010]
Further, when using a single blade cutting member 508, since the terminals 507A and 507D on both sides are shifted, the cutting position of the terminal line 506a with respect to 507D is removed from the terminal as shown in FIG. 54, for example. The cut terminal line 506a protrudes from the terminal 507D.
In order to avoid this protrusion, as shown in FIG. 55, when cutting is performed by moving the cutting edge of the cutting member 508 in the shifting direction of the terminals 507A and 507D on both sides, the terminal lines for the inner terminals 507B and 507C are used. Since the contact length of 504a and 505a is shortened, there is a problem of causing a conduction failure.
[0011]
Furthermore, in order to prevent side slip of the terminal wires 503a and 506a on both sides, there is a method of using a three-blade cutting member 509 instead of the cutting member 508 as shown in FIG. In this case, the cutting member 509 has two blades 509a extending in the lateral direction for cutting the two inner terminal wires 504a and 505a and two members extending in the vertical direction for cutting the two outer terminal wires 503a and 506a. Two blades 509b and 509c are provided.
In the case of cutting the terminal wires 503a to 506a using such a three-blade cutting member 509, the terminal wires 503a and 506a on both sides escape in the vertical direction as shown by arrows in FIG. Similarly, there was a problem that the cutting could not be performed reliably.
[0012]
In view of the above, the present invention has an object to provide a wire cutting device in which, for example, the terminal wire of each winding of the head is surely cut.
[0013]
[Means for Solving the Problems]
According to the present invention, the above object is achieved by positioning a plurality of terminal wires of a winding wound around a head so as to pass over corresponding terminals aligned on a terminal plate mounted on the head base. Holding means and cutting means for cutting each terminal wire by bringing a cutting blade into contact with each terminal; this Cutting means Is , There are three cutting blades attached to one cutting member and driven integrally with each other, and one of these three cutting blades is Of the terminals on the terminal board, the terminals closer to the center are aligned in the terminal alignment direction. On a straight line Extend Formed as , The other two cutting blades With respect to the side terminals, each extends in two directions on the terminal, the direction perpendicular to the alignment direction. Shaped to form an L shape This is achieved by the wire cutting device.
[0014]
According to the configuration of claim 1, the cutting means in a state in which each terminal wire of the plurality of windings wound around the head is positioned so as to pass over the corresponding terminal on the terminal board by the holding means. When the cutting blades abut on the terminal wires on the respective terminals, the terminal wires are cut.
At that time, the cutting blade that is in contact with the side terminal is formed to extend in two directions, so that the terminal extends obliquely at a relatively small angle from the vicinity of the center of the head toward the side terminal. A cutting blade will contact | abut reliably with respect to a line, and will cut | disconnect.
[0015]
When each cutting blade of the cutting means is disposed at a position shifted inward from the outer side of each terminal by half the width of variation in positioning error of the terminal plate with respect to the head base, On the other hand, even when the terminal plate has the maximum error, each cutting blade surely contacts the terminal wire at the position inside the terminal when cutting the terminal wire. The terminal line is surely disconnected.
[0016]
When the holding means is composed of two members for sandwiching each terminal line from above and below, and each member has a groove and a protrusion that can be engaged with each other, a low friction coating is applied. Even if it is a terminal wire of a coil | winding, a terminal wire will be hold | maintained reliably and the cutting | disconnection by a cutting means will be performed reliably.
[0017]
When the holding means is retracted in a state where each terminal line is gripped after cutting each terminal line by the cutting means, it is assumed that the terminal line could not be cut by contact of each cutting blade of the cutting means However, by retracting the holding means, the maximum stress acts on the terminal wire at the cutting edge of the cutting blade, and the terminal wire is surely cut.
[0018]
When each cutting blade of the cutting means is formed from a surface perpendicular to the surface of the terminal plate and / or an acute inclined surface, each cutting blade can be easily milled by an end mill. Formed.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to FIGS.
The embodiments described below are preferable specific examples of the present invention, and thus various technically preferable limitations are given. However, the scope of the present invention particularly limits the present invention in the following description. As long as there is no description of the effect, it is not restricted to these aspects.
[0020]
FIG. 1 shows a winding device comprising a preferred embodiment of a device for cutting a terminal wire of a head winding according to the invention.
The winding device of FIG. 1 has a supply / discharge portion P and a winding portion R.
The supply / discharge unit P includes a magazine unit 1, a work pick and place unit 2, a transfer unit 3, a terminal processing unit 4, a jig pick and place unit 5, and the like.
The winding portion R includes a chip holder unit 6, an image processing unit 7, a spindle unit 8, a hook unit 9, a wire supply unit 10, a microscope unit 11, and the like.
[0021]
Here, an example of the operation of the winding apparatus of FIG. 1 will be schematically described.
The operation of the winding device of FIG. 1 is shown in FIGS. 2 shows the operation of the supply / discharge section P and the operation of a part of the winding section R, and FIG. 3 shows the remaining operation of the winding section R.
Referring to FIGS. 1 and 2, the head as a work is introduced into the magazine unit 1 in a state of being arranged in a magazine (not shown) (step S1).
In this magazine, a plurality of heads as workpieces can be arranged in series, for example.
[0022]
The magazine is pitch-fed in the magazine unit 1, and a new work moves to the take-in position of the work pick and place unit 2 (step S2).
One of the heads arranged in the magazine is transferred from the work pick and place unit 2 to the transfer unit 3 side (steps S3 and S4).
At this time, the head is transferred to a work jig on the transfer unit 3.
[0023]
The work jig on which the head is placed moves to the center of the winding device by the transfer unit 3 (step S5).
Then, the workpiece jig is transferred to the chip holder unit 6 of the winding portion R by the jig pick and place unit 5 (steps S6 and S7).
The head on the work jig transferred to the chip holder unit 6 detects the center of the winding hole of the head by the image processing unit 7 and finely positions the head (step S8).
The head that has finished positioning slides to the right side of the winding device by the action of the chip holder unit 6 (step S9).
[0024]
The spindle unit 8 feeds a fixed amount of wire (also referred to as a wire) from the wire supply unit 10 and performs winding on the head in combination with the hook unit 9. The state of this winding can be observed by the microscope unit 11 (step S10).
[0025]
Next, as shown in FIG. 3, the winding-finished head checks the winding by the image processing unit 7 and returns it to the center of the winding device (step S11). Then, the work jig is transferred by the jig pick and place unit 5 (step S12).
The work jig is again transferred onto the transfer unit 3 of the supply / discharge section P (step S13). Then, the work jig is subjected to processing of each terminal line by the terminal processing unit 4 while moving to the left side of the winding device by the transfer unit 3 (step S14).
The head is discharged to the magazine on the magazine unit 1 side by the work pick and place unit 2 (step S15). At the time of discharging, the head as a work is divided into a non-defective product head and a defective product head, and is discharged to the magazine on the magazine unit 1 side (step S16).
[0026]
In this way, winding is performed on the head, which is a workpiece, and after the winding state is checked, post-processing of the winding end line in each head is performed.
As shown in FIG. 10, the work jig J is a jig for moving the winding part R from the supply / discharge part P in a state where the head which is a work is positioned. Lead clampers 25A, 25B, 25C and 25D are provided for fixing.
[0027]
Next, referring to FIGS. 4 to 8, for example, a VHS-double azimuth head H will be described as a target head.
4 shows the front side of the head H, FIG. 5 shows the back side, and FIG. 6 shows the side.
As shown in FIG. 4, the head H includes a chip 20 and a base 22 made of, for example, brass that fixes the chip 20. As shown in FIG. 8, two holes 24 and 26 for winding are formed in the chip 20. That is, the chip 20 has four cores 30, 32, 34, and 36, and a wire is wound around each of them.
[0028]
A left inner winding 42 and a right inner winding 44 are wound around the two inner cores (I cores) 32 and 34, respectively. A left outer winding 40 and a right outer winding 46 are wound around the two outer cores (C cores) 30 and 36, respectively.
As shown in FIG. 4, the terminal wire 40a of the left outer winding 40 passes through the slit S from the back surface side 22b (FIG. 5) of the base 22, and the terminal plate 24 on the front surface side 22a of the base 22 of FIG. The terminal 24B is soldered or bonded.
Similarly, the terminal line 42a of the left inner winding 42 passes through the slit S and is soldered or bonded to the terminal 24A. The terminal wire 46a of the right outer winding 46 passes through the slit S and is soldered or bonded to the terminal 24C. The terminal wire 44a of the right inner winding 44 is soldered or bonded to the terminal 24D.
[0029]
The terminal wires 40a, 42a, 44a, 46a of the windings 40, 42, 44, 46 are fixed to the terminals 24A to 24D at a time in the supply / discharge section P of the winding device of FIG. Therefore, until it is conveyed to the supply / discharge section P, it is temporarily fixed to the wire clampers 25A to 25D of the work jig J as shown in FIG.
A workpiece jig J shown in FIG. 10 is for holding the head H shown in FIGS. 4 and 7 and moving on the winding device shown in FIG.
FIG. 8 shows a double azimuth head chip 20, while FIG. 9 shows an example of a single azimuth head chip.
[0030]
Here, the winding cutting device according to the present embodiment is incorporated in the terminal processing unit 4 in the above-described winding device, and functions as follows in step ST14 shown in FIG.
The step ST14 will be described in more detail. When the work is in the state shown in FIG. 10, that is, in the state set on the work jig, the winding is finished, and the terminal wire of each winding passes through the slit S from the back side. It is drawn to the front side. Each terminal line passes over the terminals 24A, 24B, 24C, and 24D of the terminal plate 24 and is clamped by the lead clampers 25A, 25B, 25C, and 25D of the work jig together with the work jig. It is transported on the transfer unit 3.
Here, the following work is performed at each point of the transfer unit 3.
[0031]
First, in the disconnection detection unit, the presence or absence of a terminal line is confirmed using an optical sensor. For example, the terminal line 40a is detected by a reflective optical sensor from above the terminal line 40a stretched between the terminal 24A and the lead clamper 25A, and the same applies to the other terminal lines 42a, 44a, and 46a. Is detected.
Subsequently, the terminal lines 40a, 42a, 44a, and 46a are fixed to the terminals 24A, 24B, 24C, and 24D, respectively, by the fixing unit. This is because spare solder is pre-populated in each terminal 24A, 24B, 24C, 24D, and the corresponding terminal wires 40a, 42a, 44a, 46a are embedded in the solder by melting the solder with heat, It is mechanically connected and electrically connected.
[0032]
Next, in the wire cutting apparatus 50 (described later) of the present embodiment, one chuck 51 enters the upper side of the terminal wires 40a and 42a, and the other chuck 52 enters the lower side at the same time. As shown in FIGS. 11 and 12, one chuck 53 and the other chuck 54 enter at the same time above 44a and 46a, respectively, and sandwich the terminal wires 40a, 42a, 44a and 46a, respectively. , Positioning and holding fixed.
Thereafter, a cutting member 55 as a cutting means descends in the vicinity of each terminal 24A, 24B, 24C, 24D of the terminal plate 24. As a result, the terminal lines 40 a, 42 a, 44 a, 46 a are cut by the cutting blade of the cutting member 55.
Finally, the lead clampers 25A, 25B, 25C, and 25D of the work jig are opened as shown in FIG. 13, and the cut portions (for example, 40b) of the terminal wires 40a, 42a, 44a, and 46a are released. Is done.
[0033]
After the remaining portions of the terminal wires 40a, 42a, 44a and 46a are cut in this way, the head as a work is conveyed from the wire cutting device 50 to the next conduction and insulation check unit, and the conduction and insulation check is performed. Done.
This continuity and insulation check is performed by, for example, bringing the probe pins into contact with the terminals 24E, 24F, 24G, and 24H (see FIG. 4) of the terminal plate 24, for example, continuity between the terminal wires 40a and 42a, 44a and 46a (ie, In addition to confirming whether or not there is a disconnection, the insulation between the terminal wires 40a and 46a and the head main body (that is, whether or not the wire coating is broken) is confirmed.
Thus, step ST14 is completed, and in step ST15, the head as a finished product is transferred (discharged) by the work PP unit.
[0034]
14 and 15 are a plan view and a partially enlarged plan view showing in detail the wire rod cutting device described above.
14 and 15, the wire cutting apparatus 50 includes a swinging portion 50a pivotally supported around a horizontal rotating shaft 56, and two sets of holding means near the free end. It has chucks 51, 52 and 53, 54.
Further, the wire cutting device 50 descends toward the terminal plate of the head, so that the cutting blade passes over the terminals 24A, 24B, 24C, 24D provided on the terminal plate of the head as will be described later. A cutting member 55 is provided as a cutting means configured to come into contact with the terminal wires 40a, 42a, 44a, 46a.
[0035]
As described above, these two sets of chucks 51, 52 and 53, 54 are paired and approach each other as shown in FIG. 40a, 42a, 44a and 46a are clamped and fixedly held.
[0036]
Here, the chucks 51 and 52 are supported by the support portion 57 and the chucks 53 and 54 are supported by the support portion 58 so as to be able to be opened and closed by contacting or separating from each other. Further, the support portions 57 and 58 are configured to be retracted from the regions of the terminal lines 40a, 42a, 44a, and 46a by swinging to the position M1 shown by the chain line in FIG.
[0037]
Further, the wire cutting device 50 has the end portions 40b, 42b, 44b, which are cut by the cutting member 55, as shown in FIG. 46b is held between the chucks 51, 52 and 53, 54, swings upward, and reverses 180 degrees to the opposite side, so that the chucks 51, 52, 53, 54 are attached to the winding cutting device 50. The remaining material waste pipe 59 is moved upward.
[0038]
At this time, if the terminal wires 40a, 42a, 44a, 46a are not cut by the lowering of the cutting member 55, as shown in FIG. 18, they are pulled strongly by the swinging of the swinging portion 50a. Therefore, since the blades of the cutting member 55 are in contact with the terminals 24A, 24B, 24C, and 24D, the terminal wires 40a, 42a, 44a, and 46a are subjected to the largest stress at the cutting edge portion of the cutting member 55. Will be cut off.
[0039]
Regarding the terminal wires 40a, 42a, 44a, 46a cut by the lowering of the cutting member 55, the cut terminal wire portions 40b, 42b, 44b, 46b are moved by the chucks 51, 52, 53, 54 as they are. Will be.
Here, the remaining material disposal pipe 59 is connected to the dust box 61 via the negative pressure generator 60 as shown in FIG. As the swinging portion 50a swings, the cut portions 40b, 42b, 44b, 46b of the terminal wires sandwiched by the chucks 51, 52, 53, 54 are moved onto the remaining material disposal pipe 59, Since the negative pressure generator 60 operates, the cut portions 40b, 42b, 44b, 46b of the terminal wire are sucked into the remaining material waste pipe 59 by opening the chucks 51, 52, 53, 54, The negative pressure generator 60 is stopped after being stored in the dust box 61.
[0040]
Thereafter, with the chucks 51, 52, 53, and 54 remaining open, the swinging portion 50a swings in the reverse direction and returns to the original position. Further, the cutting member 55 is also raised, the lead clampers 25A, 25B, 25C, and 25D of the work jig J are also closed and returned to the original state.
Thus, the remaining portions of the terminal wires 40a, 42a, 44a and 46a of the head windings 40, 42, 44 and 46 are cut by the wire cutting device 50.
[0041]
20 to 22 show a configuration example of the cutting member 55 as the cutting means described above.
In FIG. 20, the cutting member 55 includes three cutting blades 55b, 55c, and 55d on the front side of the main body 55a.
As shown in FIG. 23, the first cutting blade 55b is a blade that extends straight along the front end of the main body 55a, and the second and third cutting blades 55c and 55d are both sides of the front end of the main body 55a. It has an “L” -shaped shape so as to go around the corners. Then, as shown in FIG. 23, the second and third cutting blades 55c and 55d on both sides are positioned rearward by the same distance y with respect to the first cutting blade 55b.
[0042]
Accordingly, as shown in FIG. 24, the cutting blade 55b of the cutting member 55 cuts the terminal wires 42a and 44a with respect to the terminal wires 40a, 42a, 44a and 46a fixedly held by the chucks 51 to 54, The cutting blade 55c cuts the terminal wire 46a, and the cutting blade 55d cuts the terminal wire 40a.
The second and third cutting blades 55c and 55d are each formed in a slightly arc shape at the corners, but this is in consideration of workability by a processing tool, and the radius of curvature is limited. Is not to be done.
[0043]
Here, each cutting blade 55b, 55c, 55d of the cutting member 55 is provided at a position shifted from the outer side of each terminal by half of the variation in positioning error with respect to the terminal board 24. Specifically, positioning is performed as follows.
That is, as shown in FIG. 25, the first cutting blade 55b is higher by Δy than the lower sides of the terminals 24B and 24C, and the second and third cutting blades 55c and 55d are respectively lower than the lower sides of the terminals 24B and 24C. It is installed above Δy and inside Δx from the outer sides of the terminals 24A, 24D.
As shown in FIG. 26, the values of Δx and Δy are as follows with respect to variations ΔX and ΔY with respect to the reference position when the terminal board 24 is attached to the base 22 of the head H.
[Expression 1]

[Expression 2]

To be selected.
[0044]
This is due to the following reason.
While errors ΔX, ΔY with respect to the base 22 relative to the reference position of the terminal board 24 with respect to the base 22 always cause errors with respect to the base 22 of the respective terminals 24A, 24B, 24C, 24D, each cutting blade 55b, 55c, 55d of the cutting member 55. Is always accurately positioned relative to the base 22. Accordingly, each of the cutting blades 55b, 55c, and 55d causes a positioning error by the errors ΔX and ΔY of the terminal board 24 with respect to the terminals 24A, 24B, 24C, and 24D.
On the other hand, the cutting positions of the terminal wires 40a, 42a, 44a, 46a by the cutting blades 55b, 55c, 55d are as close as possible to the lower and outer sides of the terminals 24A, 24B, 24C, 24D as shown in FIG. It is desirable to be close. This is because the junction length between the terminal lines 40a, 42a, 44a, 46a and the corresponding terminals 24A, 24B, 24C, 24D is increased, and conduction is ensured.
[0045]
However, as described above, since the errors ΔX and ΔY are generated between the cutting member 55, the terminal board 24, and the terminals 24A, 24B, 24C, and 24D, the cutting blades 55b and 55c are caused by the errors ΔX and ΔY. , 55d, there is a possibility that the relative position of the terminal shifts as shown by the dotted line in FIG.
As a result, when the relative position of the terminal 24A with respect to the cutting blade 55d is shifted to the outer position indicated by reference numeral 24A1 in FIG. 28, as shown in FIG. 29 (A), the terminal wire 40a and the terminal 24A Although the joining length is shortened, practically, joining is performed without any problem.
On the other hand, when the relative position of the terminal 24A with respect to the cutting blade 55d is shifted to the inner position indicated by reference numeral 24A2 in FIG. 28, the terminal wire 40a is connected to the terminal 24A as shown in FIG. Since the protruding portion 40a1 moves freely without being fixed to the terminal 24A, it may come into contact with other terminal portions or interfere with other components during mounting, It will be treated as a defective product.
[0046]
Here, as described above, the cutting blades 55b, 55c, and 55d of the cutting member 55 are disposed so as to be shifted by Δx and Δy with respect to the terminals 24A, 24B, 24C, and 24D. Even if the relative positions of the terminals 24A, 24B, 24C, and 24D are shifted by ΔX and ΔY, the relative positional relationship between the cutting blades 55b, 55c, and 55d of the cutting member 55 and the terminals 24A, 24B, 24C, and 24D Is as shown in FIG. Thus, for example, when the terminal 24A is shifted to the outer position indicated by reference numeral 24A3 in FIG. 30, the result is as shown in FIG. 31A, and the joining length is longer than in the case shown in FIG.
On the other hand, when the relative position of the terminal 24A with respect to the cutting blade 55d is shifted to the inner position indicated by reference numeral 24A4 in FIG. 30, the terminal wire 40a protrudes from the terminal 24A as shown in FIG. 31 (B). Therefore, it will fit in the terminal 24A and will be treated as a non-defective product.
[0047]
FIG. 32 shows a specific configuration example of the chucks 51, 52 and 53, 54 described above.
32, the chuck 51 has a concave cross section, and the chuck 52 has a convex cross section corresponding thereto. Accordingly, the chucks 51 and 52 can be combined with each other as shown in FIG. 33. In the combined state, the width b in the horizontal direction and the width a in the vertical direction in FIG. Have come to have.
Here, preferably, the width a is selected to be 0.1 to 0.5 times D when the outer diameter of the terminal wire to be sandwiched is D, and the width b is (D + a) It is selected to be.
According to the chucks 51 and 52 having such a configuration, when the terminal wire W is clamped, the wire W is divided into the A1 side of the chuck 51, the A2 side of the chuck 52, and the chuck 51 as shown in FIG. Between the E1 side and the E2 side of the chuck 52, there is a gap equal to the width a between the B1 side of the chuck 51 and the B2 side of the chuck 52, the C1 side and the C2 side, and the D1 side and the D2 side. is there.
The chucks 53 and 54 are configured in the same manner as the chucks 51 and 52.
[0048]
Here, as shown in FIG. 17, when the swinging portion 50a of the wire rod cutting device 50 swings around the rotation shaft 56, the chucks 51, 52 and 53, 54 move in the direction of arrow P in FIG. Therefore, the wire W of the terminal wires 40a, 42a, 44a, 46a sandwiched between the chucks 51 to 54 is pressed by the cutting member 55 on the right terminal side in FIG. Will receive the tension of. As a result, the wire W also generates a sliding frictional force between the A1 side and E1 side of the chuck 51 and the A2 and E2 sides of the chuck 52.
However, the corner between the sides D1 and E1 of the chuck 51 and the corner between the sides C2 and D2 of the chuck 52 bite into the wire W to which the tension Q is applied. W is securely held between the chucks 51 and 52. Thus, since the wire W is held by the chucks 51 and 52, the terminal wires 40a, 42a, 44a, or 46a that could not be cut by the contact of the cutting blades 55b, 55c, and 55d of the cutting member 55 are swung. By the swing of 50a, the cutting blades 55b, 55c and 55d are surely cut.
[0049]
35 to 38 show other configuration examples of the cross-sectional shapes of the chucks 51, 52, 53, and 54 as holding means.
In FIG. 35, the chucks 51 and 52 have two grooves, and the chucks 53 and 54 have two protrusions correspondingly. Thereby, when the wire W is clamped by the chucks 51 to 54, the wire W is held by the grooves and the protrusions, and the wire W is more reliably held.
In FIG. 36, the chucks 51 and 52 have V-shaped grooves, and the chucks 53 and 54 are provided with one semicircular cross-section protrusion correspondingly. Thereby, the wire W is clamped between the chucks 51 to 54 by the V-shaped groove and the protrusion. In this case, since the grooves of the chucks 51 and 52 are V-shaped, they are easily formed, so that the processing cost is reduced.
[0050]
In FIG. 37, the chucks 51 and 52 have dovetails, and the chucks 53 and 54 have a quadrilateral cross-section protrusion correspondingly. As a result, the wire W is sandwiched between the dovetail grooves and the protrusions between the chucks 51 to 54, and the sharp corners of the dovetail bite into the wire W, thereby holding the wire W more reliably. It can be done.
38, the chucks 51 to 54 are formed in the same manner as in FIG. 32. In this case, the wire W is between the C1 side of the chuck 51 (or 53) and the C2 side of the chuck 52 (or 54). It is configured to be sandwiched and have gaps on the other sides. Thereby, the wire W is sandwiched between the C1 side and the C2 side between the chucks 51 to 54, and the corner portion between the C2 side and the D2 side of the chuck 52 (or 54) bites into the wire W. As a result, the wire W can be held more reliably.
[0051]
39 and 40 show a specific configuration example of the cutting blades 55b, 55c, and 55d of the cutting member 55 described above.
First, in FIG. 39, the cutting blades 55c and 55d are each composed of an inner vertical surface and an outer acute angle inclined surface at each portion bent in an L shape.
In FIG. 40, the cutting blade 55b is composed of two surfaces inclined outward at different inclination angles.
The shape of each of the cutting blades 55b, 55c, 55d is not limited to this. For example, as shown in FIG. 41, the cutting blades 55b, 55c, 55d are formed from an outer vertical surface and an inner acute inclined surface. It may be configured. As shown in FIG. 42, the cutting blades 55c and 55d may be composed of two surfaces inclined outward at different inclination angles, like the cutting blade 55b shown in FIG. Furthermore, as shown in FIG. 43, the cutting blades 55b, 55c, and 55d may be configured as so-called double blades that are inclined in opposite directions.
[0052]
The shapes of the cutting blades 55b, 55c, and 55d are all determined in consideration of workability. For example, the cutting blades 55c and 55d shown in FIG. As shown in FIG. 44, the inner vertical surface is processed, and subsequently, the outer inclined surface is processed as shown in FIG.
In addition, the cutting blade 55b shown in FIG. 40 is similarly processed by milling using the end mill 62, so that the inner inclined surface is first processed as shown in FIG. 46, and then the outer inclined surface as shown in FIG. Is easily formed by processing.
[0053]
FIG. 48 shows a head 70 with a different terminal arrangement.
In such a head 70, three coils 71, 72, 73 are provided, and two terminal wires 71a, 71b, 72a, 72b, 73a, 73b from windings of these coils 71, 72, 73 are provided. Are extended toward the terminals 74A, 74B, 74C, 74D, 74E, and 74F, respectively.
In the case of such a head 70, the cutting device 75 for cutting the terminal wires 71a, 71b, 72a, 72b, 73a, 73b has a cutting blade whose terminals 74A, 74B, 74C as shown in FIG. , 74D, 74E, and 74F are formed in a step shape as a whole so as to have corner portions.
[0054]
Thereby, each terminal line 71a, 71b, 72a, 72b, 73a, 73b is reliably cut by the cutting blade of the cutting device 75 without causing side slip.
In this case, the positioning of the cutting blade of the cutting device 75 with respect to the terminals 74A, 74B, 74C, 74D, 74E, and 74F is appropriately selected according to the width of variation in the positioning error of the terminals. .
[0055]
By the way, the present invention is not limited to the above embodiment.
In the embodiment of the present invention, a VHS double azimuth head is described as an example, but the present invention is not limited to this. As the video head, the VHS type includes a double azimuth head and a single azimuth head, and the 8 mm video head also includes a double azimuth head and a single azimuth head. Alternatively, the present invention can be applied to a DAT head or the like in addition to a video head.
Further, the present invention can be widely applied not only to video heads but also to heads and wires (terminal wires) that require windings and to cut the terminal wires in all other areas. it can. Further, the shape of the head as the object is not limited to the illustrated embodiment. And according to the shape of the head which is a target object, the shape of the wire cutting device of this invention also changes according to it.
In the above-described embodiment, the terminals 24A, 4B, 24C, and 24D are arranged in a line in FIGS. 4 to 17, and have a step in FIGS. 24 to 30, and FIGS. However, it is apparent that the present invention can be applied to any terminal and other terminal arrangements.
[0056]
【The invention's effect】
As described above, according to the present invention, for example, it is possible to provide a wire rod cutting device in which the terminal wire of each winding of the head is surely cut.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a winding device including a preferred embodiment of a winding cutting device according to the present invention.
FIG. 2 is a diagram showing an operation of the winding device of FIG. 1;
FIG. 3 is a diagram showing an operation following the operation of FIG. 2;
FIG. 4 is a diagram showing a surface side of a double azimuth head that is an object.
FIG. 5 is a view showing the back side of the head shown in FIG. 4;
6 is a view showing a side surface of the head shown in FIG. 4; FIG.
7 is a perspective view showing the head of FIG. 4. FIG.
8 is a diagram showing a chip and windings of the head of FIG. 4. FIG.
FIG. 9 is a diagram showing a chip of another single azimuth head.
FIG. 10 is a diagram illustrating an example of a work jig for holding a head.
FIG. 11 is a plan view showing a main part of the wire cutting apparatus according to the present invention.
12 is a cross-sectional view taken along the line KK of the wire rod cutting device in FIG.
13 is a schematic view showing a closed state and an open state of a lead clamper of the work jig J. FIG.
FIG. 14 is a plan view showing the entire wire cutting apparatus according to the present invention.
15 is a partially enlarged plan view showing a main part of the wire rod cutting device of FIG. 14;
16 is a side view showing a closed state of the chuck in the wire rod cutting device of FIG. 14;
FIGS. 17A and 17B are a side view and a plan view showing the swinging of the swinging portion in the wire rod cutting device of FIG.
18 is an explanatory view showing the cutting of the terminal wire by the swinging of the swinging part in the wire rod cutting device of FIG. 14;
FIG. 19 is a schematic side view showing a remaining material disposal pipe for discarding the cut terminal wire in the wire rod cutting device of FIG. 14;
20 is a plan view, a side view, a front view, and a cross-sectional view taken along the line CC of FIG.
21 is a cross-sectional view taken along line DD of the cutting member in FIG.
22 is a sectional view taken along line EE of the cutting member in FIG.
23 is a schematic plan view showing a tip shape of a cutting blade provided in the cutting member of FIG.
24 is a schematic view showing the cutting of the terminal line by each cutting blade of FIG. 23. FIG.
25 is a schematic diagram for explaining positioning of each cutting blade in FIG. 23 with respect to a terminal.
FIG. 26 is a schematic diagram for explaining the positional deviation of the terminal in FIG. 25 with respect to the head base.
27 is a schematic diagram showing ideal positioning of each cutting blade of FIG. 23 with respect to a terminal.
FIG. 28 is a schematic view showing a relationship due to positional deviation between each cutting blade and a terminal by the arrangement of FIG. 27.
FIG. 29 is a schematic diagram showing the relationship between the left cutting blade, the terminal that has been displaced to the maximum outside (A), and the terminal that has been displaced to the maximum position inside (B) with respect to the displacement of FIG.
FIG. 30 is a schematic view showing positioning of a cutting blade with respect to a terminal according to the present invention.
FIG. 31 is a schematic view showing the relationship between the left cutting blade according to the arrangement shown in FIG. 30, (A) a terminal that is displaced to the maximum outside, and (B) a terminal that is displaced to the maximum inside.
32 is a schematic perspective view showing a specific configuration of a chuck in the wire rod cutting device in FIG. 14;
33 is a cross-sectional view showing a closed state of the chuck of FIG. 32. FIG.
34 is a cross-sectional view showing a state in which a terminal line is gripped by the chuck of FIG. 32. FIG.
35 is a cross-sectional view showing a gripping state of a terminal line according to a first modification of the chuck of FIG. 32. FIG.
36 is a cross-sectional view showing a gripping state of a terminal line according to a second modification of the chuck of FIG. 32. FIG.
37 is a cross-sectional view showing a gripping state of a terminal line according to a third modification of the chuck of FIG. 32. FIG.
38 is a cross-sectional view showing a gripping state of a terminal line according to a fourth modification of the chuck of FIG. 32. FIG.
39 is a cross-sectional view showing a specific shape of the cutting blades on both sides of the cutting member of FIG. 20;
40 is a cross-sectional view showing a specific shape of a cutting blade at the center of the cutting member in FIG. 20;
41 is a cross-sectional view showing a modification of each cutting blade of the cutting member in FIG. 20;
42 is a cross-sectional view showing a modification of the cutting blades on both sides of the cutting member of FIG.
43 is a cross-sectional view showing another modified example of each cutting blade of the cutting member in FIG. 20;
44 is a schematic diagram showing milling of the vertical surface inside the cutting blade of FIG. 39. FIG.
45 is a schematic diagram showing milling of the inclined surface outside the cutting blade of FIG. 39. FIG.
46 is a schematic view showing milling of the inclined surface inside the cutting blade of FIG. 40. FIG.
47 is a schematic view showing milling of the inclined surface outside the cutting blade of FIG. 40. FIG.
FIG. 48 is a schematic view showing the relationship between terminal lines and terminals in a head having three coils.
49 is a schematic view showing the shape of a cutting blade of a cutting device for cutting a terminal line in the head of FIG. 48. FIG.
FIG. 50 is a diagram showing wiring with respect to terminals of a terminal plate of a terminal line of a double azimuth head.
51 is a partial plan view showing cutting of each terminal line in the head of FIG. 50. FIG.
52 is a diagram showing a side slip of the terminal lines on both sides in the cutting of FIG. 51. FIG.
FIG. 53 is a diagram showing the cutting of the terminal lines related to the terminals arranged in a step shape.
FIG. 54 is a diagram showing a side slip and protrusion of the terminal line in the cutting of FIG. 53.
FIG. 55 is a diagram showing a cut that prevents the protrusion of FIG. 54;
56 is a diagram showing cutting by three cutting blades with respect to the terminal having the arrangement of FIG. 53. FIG.
[Explanation of symbols]
20 ... chip, 22 ... head base, 24 ... terminal board, 40, 42, 44, 46 ... winding, 40a, 42a, 44a, 46a ... terminal wire, 50 ... Wire rod cutting device, 50a ... swinging part, 51, 52, 53, 54 ... chuck (holding means), 55 ... cutting member, 55b, 55c, 55d ... cutting blade, 56 ... Rotating shaft, 57, 58... Supporting part, 59... Remaining material waste pipe, 60... Negative pressure generator, 61.

Claims (5)

A holding means for positioning a plurality of terminal wires of the winding wound around the head so as to pass over corresponding terminals aligned on a terminal plate mounted on the head base, respectively.
Cutting means for cutting each terminal wire by bringing a cutting blade into contact with each terminal;
The cutting means has three cutting blades attached to one cutting member and driven integrally with each other,
One of the three cutting blades is formed so as to extend linearly in the terminal alignment direction with respect to the terminal near the center of the terminals on the terminal plate, and the other two cutting blades are lateral Each of the terminals is formed so as to extend in two directions perpendicular to the alignment direction on the terminals so as to form an L shape.   Each cutting blade of the cutting means is disposed at a position shifted inward from the outer side of each terminal by a half of the width of variation in positioning error of the terminal plate with respect to the head base. The wire cutting apparatus according to 1.   The said holding | maintenance means is comprised from the two members which clamp each terminal wire from the upper and lower sides, and each member is provided with the groove part and convex part which can mutually be engaged. Wire rod cutting device.   2. The wire cutting apparatus according to claim 1, wherein the holding unit is retracted in a state where each terminal line is gripped after the terminal line is cut by the cutting unit.   The wire cutting apparatus according to claim 1, wherein each cutting blade of the cutting means is formed of a surface perpendicular to the surface of the terminal plate and / or an acute inclined surface.

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