JP2010073513A - Method of manufacturing leaky coaxial cable - Google Patents

Method of manufacturing leaky coaxial cable Download PDF

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JP2010073513A
JP2010073513A JP2008240324A JP2008240324A JP2010073513A JP 2010073513 A JP2010073513 A JP 2010073513A JP 2008240324 A JP2008240324 A JP 2008240324A JP 2008240324 A JP2008240324 A JP 2008240324A JP 2010073513 A JP2010073513 A JP 2010073513A
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coaxial cable
leaky coaxial
cutting tool
slot
manufacturing
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JP5254718B2 (en
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Fumio Suzuki
文生 鈴木
Kazuhiko Takano
一彦 高野
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Fujikura Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of manufacturing a leaky coaxial cable to form a slot for electromagnetic-wave leakage on the external conductor of the leaky coaxial cable by a cutting tool. <P>SOLUTION: In this method to form the slot 12 for electromagnetic-wave leakage on the external conductor 11 of the leaky coaxial cable 10 by the cutting tool 100, the cutting tool 100 is three-dimensionally driven to the leaky coaxial cable 10 by a carrier device 200, to carry the leaky coaxial cable 10 in its longitudinal direction; and a three dimensionally driving device 300 having a first driving mechanism 310 to move the cutting tool 100, in the travelling direction of the leaky coaxial cable 10; a second driving mechanism 320 for moving it in the vertical direction of the leaky coaxial cable 10; and a third driving mechanism 330 for moving it in the width direction of the leaky coaxial cable 10, and the slot 12 for electromagnetic-wave leakage is formed. As a result, the slot having a desired shape can be formed speedily at low cost. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、漏洩同軸ケーブルの外部導体に電磁波漏洩用のスロットを形成する漏洩同軸ケーブルの製造方法に関するものである。   The present invention relates to a method for manufacturing a leaky coaxial cable in which a slot for electromagnetic wave leakage is formed in an outer conductor of the leaky coaxial cable.

漏洩同軸ケーブル（ＬＣＸ）にあっては、その外部導体に対して電磁波漏洩用のスロット（通常スリット状の穴）を形成する必要がある。
従来、スロットの形成にあたって、外部導体に合わせた雄雌の金型を用意し、プレス加工により外部導体にスロットを形成する方法（特許文献１）や、外部導体にレーザー光を照射してレーザー加工によりスロットを形成する方法（特許文献２）、外部導体にコルゲート形状のものを用い、そのコルゲートの一部（山部分など）を切削してスロットを形成する方法（特許文献３）などが提案されている。
特開平１０−１９３００１号公報 特開２００３−１７９４１５号公報 実開平０９−１９８９４１号公報 In a leaky coaxial cable (LCX), it is necessary to form a slot for electromagnetic wave leakage (usually a slit-shaped hole) in the outer conductor.
Conventionally, when forming a slot, a male and female mold matched to the outer conductor is prepared, and the slot is formed in the outer conductor by pressing (Patent Document 1), or laser processing is performed by irradiating the outer conductor with laser light. (Patent Document 2), a method of forming a slot by using a corrugated outer conductor and cutting a part of the corrug (such as a crest) to form a slot (Patent Document 3). ing.
Japanese Patent Laid-Open No. 10-193001 JP 2003-179415 A Japanese Utility Model Publication No. 09-198941

ところが、上記金型を用いたプレス加工による方法では、金型自体が高価であること、製造時金型自体を正確に制御することが難しいこと、金型の着脱に時間を要し、製造速度の高速化が難しいことなどの問題があった。   However, in the method by press working using the above-mentioned mold, the mold itself is expensive, it is difficult to accurately control the mold at the time of manufacture, it takes time to attach and detach the mold, and the production speed There were problems such as difficulty in speeding up.

また、上記レーザー加工による方法の場合、レーザー加工装置自体が高価で、製造コストの上昇が避けられないこと、さらに、コルゲート形状の外部導体を切削する方法では、外部導体の凹凸によって傾斜した長いスロットの形状が制限されること、コルゲートの凹凸の整形は小径のケーブルでは困難であり、ケーブル外径の太径化が避けられないことなどの問題があった。   Further, in the case of the above-described laser processing method, the laser processing apparatus itself is expensive, and an increase in manufacturing cost is inevitable. Further, in the method of cutting the corrugated outer conductor, a long slot inclined by the irregularities of the outer conductor is used. However, there is a problem that the shape of the corrugation is limited, and shaping of the corrugation irregularities is difficult with a small-diameter cable, and that the outer diameter of the cable cannot be increased.

本発明は、このような従来の状況に鑑みてなされたものであり、外部導体に対して、相対的に３次元的に駆動する切削具により、直接的にスロットを形成することで、上記従来の問題点を解消するようにした、漏洩同軸ケーブルの製造方法を提供するものである。   The present invention has been made in view of such a conventional situation, and by forming a slot directly with a cutting tool driven relatively three-dimensionally with respect to the outer conductor, the above-described conventional technique is provided. The present invention provides a method for manufacturing a leaky coaxial cable that solves the above problem.

請求項１記載の本発明は、切削具により漏洩同軸ケーブルの外部導体に電磁波漏洩用のスロットを形成する方法であって、漏洩同軸ケーブルを長手方向に搬送させる搬送装置と、前記切削具を前記漏洩同軸ケーブルの走行方向に移動させる第１駆動機構と前記漏洩同軸ケーブルの上下方向に移動させる第２駆動機構と前記漏洩同軸ケーブルの幅方向に移動させる第３駆動機構を有する３次元駆動装置とにより、前記切削具を、前記漏洩同軸ケーブルに対して３次元駆動させて、前記電磁波漏洩用のスロットを形成することを特徴とする漏洩同軸ケーブルの製造方法にある。   The present invention according to claim 1 is a method of forming a slot for electromagnetic wave leakage in an outer conductor of a leaky coaxial cable by a cutting tool, the conveying device for conveying the leaky coaxial cable in the longitudinal direction, and the cutting tool as described above. A three-dimensional drive device having a first drive mechanism for moving the leaky coaxial cable in the traveling direction, a second drive mechanism for moving the leaky coaxial cable in the vertical direction, and a third drive mechanism for moving the leaky coaxial cable in the width direction; Thus, the cutting tool is driven three-dimensionally with respect to the leaky coaxial cable to form the electromagnetic wave leakage slot.

請求項２記載の本発明は、切削具により漏洩同軸ケーブルの外部導体に電磁波漏洩用のスロットを形成する方法であって、漏洩同軸ケーブルを長手方向に搬送させる搬送装置と、前記切削具を前記漏洩同軸ケーブルの上下方向に移動させる上下駆動装置と、前記漏洩同軸ケーブルを回転させる回転駆動装置とにより、前記切削具に対して、前記漏洩同軸ケーブルを３次元移動させて、前記電磁波漏洩用のスロットを形成することを特徴とする漏洩同軸ケーブルの製造方法にある。   The present invention according to claim 2 is a method of forming a slot for electromagnetic wave leakage in an outer conductor of a leaky coaxial cable by a cutting tool, the conveying device for conveying the leaky coaxial cable in the longitudinal direction, and the cutting tool as described above. The leakage coaxial cable is moved three-dimensionally with respect to the cutting tool by an up-down drive device that moves the leakage coaxial cable in the vertical direction and a rotary drive device that rotates the leakage coaxial cable. In the manufacturing method of the leaky coaxial cable, the slot is formed.

請求項３記載の本発明は、前記切削具が、加工用エンドミルであることを特徴とする請求項１又は２記載の漏洩同軸ケーブルの製造方法にある。   According to a third aspect of the present invention, there is provided the leaky coaxial cable manufacturing method according to the first or second aspect, wherein the cutting tool is a processing end mill.

請求項４記載の本発明は、前記加工用エンドミルの切削幅が、前記電磁波漏洩用のスロットの幅に相当することを特徴とする請求項３記載の漏洩同軸ケーブルの製造方法にある。   According to a fourth aspect of the present invention, there is provided the leaky coaxial cable manufacturing method according to the third aspect, wherein a cutting width of the working end mill corresponds to a width of the electromagnetic wave leakage slot.

請求項５記載の本発明は、前記切削具が、円盤型の回転鋸であることを特徴とする請求項１又は２記載の漏洩同軸ケーブルの製造方法にある。   According to a fifth aspect of the present invention, in the method for producing a leaky coaxial cable according to the first or second aspect, the cutting tool is a disk-type rotary saw.

本発明の漏洩同軸ケーブルの製造方法によると、外部導体に対して、相対的に３次元的に駆動する切削具により、直接的にスロットを形成することができるため、迅速かつ低コストで、所望形状のスロットを形成することができる。
これにより、例えば、上述した従来技術の問題点は解消される。つまり、金型を用いた方法のような、金型固有の問題や製造速度が遅いなどの問題は解消される。また、レーザー加工による方法の場合のような、製造コストの問題、コルゲート状の外部導体を用いる方法のような、スロット形状の制限やケーブル外径の太径化などの問題は解消される。 According to the method for manufacturing a leaky coaxial cable of the present invention, the slot can be directly formed by a cutting tool that is relatively three-dimensionally driven with respect to the outer conductor. Shaped slots can be formed.
Thereby, for example, the above-mentioned problems of the prior art are solved. That is, problems such as a method using a mold and a problem inherent to the mold and a slow manufacturing speed are solved. In addition, problems such as a manufacturing cost problem and a method using a corrugated outer conductor, such as a limitation on the slot shape and an increase in the outer diameter of the cable, as in the case of the laser processing method are solved.

図１は、本発明に係る漏洩同軸ケーブルの製造方法の一例を示したものである。
この方法では、３次元駆動する切削具１００により、漏洩同軸ケーブル１０の外部導体１１に電磁波漏洩用のスロット１２を形成するというものである。 FIG. 1 shows an example of a method for manufacturing a leaky coaxial cable according to the present invention.
In this method, the electromagnetic wave leakage slot 12 is formed in the outer conductor 11 of the leaky coaxial cable 10 by the cutting tool 100 driven three-dimensionally.

対象の漏洩同軸ケーブル１０は、外部導体１１を被覆した段階のもので、例えば、２個の回転コロ２１０、２１０からなる搬送装置２００にセットされる。また、上記切削具１００は、３次元駆動装置３００に取り付けられる。なお、対象の漏洩同軸ケーブル１０は、特に限定されないが、外部導体１１がばらけ易い編組のだけのものではなく、金属パイプ状のセミリジッド型のケーブルや、編組をメッキしたセミフレキブル型のケーブルが好ましい。   The target leaky coaxial cable 10 is in a stage where the outer conductor 11 is coated, and is set in a transport device 200 including two rotating rollers 210 and 210, for example. The cutting tool 100 is attached to the three-dimensional drive device 300. The target leaky coaxial cable 10 is not particularly limited, but is not limited to a braid in which the outer conductor 11 easily disperses, and a metal pipe-shaped semi-rigid cable or a semi-flexible cable plated with a braid is preferable. .

３次元駆動装置３００は、切削具１００を漏洩同軸ケーブル１０の走行方向に移動させる第１駆動機構３１０と漏洩同軸ケーブル１０の上下方向に移動させる第２駆動機構３２０と漏洩同軸ケーブル１０の幅方向に移動させる第３駆動機構３３０を有してなる。   The three-dimensional drive device 300 includes a first drive mechanism 310 that moves the cutting tool 100 in the traveling direction of the leaky coaxial cable 10, a second drive mechanism 320 that moves the leaky coaxial cable 10 in the vertical direction, and the width direction of the leaky coaxial cable 10. The third drive mechanism 330 is moved to the position.

第１駆動機構３１０は、漏洩同軸ケーブル１０を下方から支えるベーステーブル部材３１１の左右に立設されて、漏洩同軸ケーブル１０の走行方向に移動自在とした２本の立設部材３１２、３１２とこれらの２部材の駆動（移動）手段（図示省略）とからなる。第２駆動機構３２０は、２本の立設部材３１２、３１２間に渡されて、漏洩同軸ケーブル１０の上下方向に移動自在とした昇降部材３２１とこの駆動（昇降）手段（図示省略）とからなる。第３駆動機構３３０は、昇降部材３２１の側面などに装着されて、漏洩同軸ケーブル１０の幅方向に移動自在とした水平スライダ部材３３１とこの駆動（スライダ）手段（図示省略）とからなる。そして、上記切削具１００は、水平スライダ部材３３１に取り付けられて、漏洩同軸ケーブル１０の外部導体１１に対して対峙させてある。なお、切削具自体の駆動手段は水平スライダ部材３３１などに内蔵（図示省略）させてある。   The first drive mechanism 310 includes two standing members 312 and 312 that are erected on the left and right sides of the base table member 311 that supports the leaky coaxial cable 10 from below, and are movable in the traveling direction of the leaky coaxial cable 10. These two member drive (moving) means (not shown). The second drive mechanism 320 is passed between the two standing members 312 and 312 and is made up of an elevating member 321 which is movable in the vertical direction of the leaky coaxial cable 10 and this driving (elevating) means (not shown). Become. The third drive mechanism 330 includes a horizontal slider member 331 that is mounted on the side surface of the elevating member 321 and the like, and is movable in the width direction of the leaky coaxial cable 10 and this drive (slider) means (not shown). The cutting tool 100 is attached to the horizontal slider member 331 and is opposed to the outer conductor 11 of the leaky coaxial cable 10. The driving means for the cutting tool itself is built in (not shown) in the horizontal slider member 331 or the like.

従って、スロット１２の形成時、３次元駆動装置３００により、切削具１００を３次元的に駆動すれば、漏洩同軸ケーブル１０の外部導体１１に対して、所望形状のスロット１２を自在に形成することができる。この研削時、外部導体１１表面の検知はセンサで行い、また、３次元駆動装置３００の制御は、予めプログラムさせたプログラム制御などにより行えばよい。勿論、一つのスロット形成が完了したら、搬送装置２００により漏洩同軸ケーブル１０自体を所望量だけ走行（搬送）させるものとする。   Therefore, when the slot 12 is formed, if the cutting tool 100 is driven three-dimensionally by the three-dimensional drive device 300, the slot 12 having a desired shape can be freely formed on the outer conductor 11 of the leaky coaxial cable 10. Can do. During the grinding, the surface of the outer conductor 11 is detected by a sensor, and the control of the three-dimensional drive device 300 may be performed by a program control programmed in advance. Of course, when the formation of one slot is completed, the conveying device 200 causes the leaky coaxial cable 10 itself to travel (carry) by a desired amount.

これらの動作の繰り返しにより、漏洩同軸ケーブル１０の外部導体１１の長手方向に多数のスロット１２を適宜間隔で形成することができる。なお、図１のように、対向するスロット形状の向き（傾き）を変えたものとする場合には、予め格納されるプログラムのプログラム制御で対応すればよい。   By repeating these operations, a large number of slots 12 can be formed at appropriate intervals in the longitudinal direction of the outer conductor 11 of the leaky coaxial cable 10. In addition, what is necessary is just to respond | correspond by program control of the program stored previously, when changing the direction (inclination) of the opposing slot shape like FIG.

上記切削具１００は、特に限定されないが、図２や図３に示すような、加工用エンドミル（ドリル）１００ａや円盤型の回転鋸１００ｂなどを用いることができる。
特に図２の加工用エンドミル１００ａとして、図２のように、その切削幅（軸径）が電磁波漏洩用のスロットの幅に相当するもの（略同一のもの）とすれば、ミルの一回のストロークで切削できるため、作業性の向上が期待できる。つまり、製造時間の短縮が図れる。
回転鋸１００ｂの場合には、加工用エンドミル１００ａほど複雑な形状のスロットは形成できないが、鋸部材の寿命が長く、価格も安価で、また、加工速度も速いので、製造コストの低減が期待できる。なお、外部導体１１が編組の場合、編組がばらけ易いので、編組を接着剤で固めるか、半田などで固めるようにするとよい。 The cutting tool 100 is not particularly limited, and a machining end mill (drill) 100a, a disk-type rotary saw 100b, or the like as shown in FIGS. 2 and 3 can be used.
In particular, if the machining end mill 100a in FIG. 2 has a cutting width (shaft diameter) corresponding to the width of the electromagnetic wave leakage slot (substantially the same) as shown in FIG. Since it can be cut by stroke, workability can be improved. That is, the manufacturing time can be shortened.
In the case of the rotary saw 100b, a slot having a shape as complicated as that of the machining end mill 100a cannot be formed, but the lifetime of the saw member is long, the price is low, and the machining speed is fast. . In addition, when the outer conductor 11 is a braid, the braid is easily separated. Therefore, the braid may be hardened with an adhesive or soldered.

図４は、本発明に係る漏洩同軸ケーブルの製造方法の他の一例を示したものである。
この方法も、基本的には上記図１の方法と同一であるが、固定した切削具１００に対して、漏洩同軸ケーブル１０側を３次元的に駆動させて、電磁波漏洩用のスロット１２を形成するというものである。 FIG. 4 shows another example of a method for manufacturing a leaky coaxial cable according to the present invention.
This method is also basically the same as the method shown in FIG. 1 except that the leakage coaxial cable 10 side is three-dimensionally driven with respect to the fixed cutting tool 100 to form the electromagnetic wave leakage slot 12. It is to do.

このため、漏洩同軸ケーブル１０を長手方向に搬送させる搬送装置２００は、上記図１の装置系と同一であるが、他の装置系が多少異なる。即ち、切削具１００を漏洩同軸ケーブル１０の上下方向に移動させる上下駆動装置４００と、漏洩同軸ケーブル１０を回転させる回転駆動装置５００を用いてある。   For this reason, the conveying apparatus 200 that conveys the leaky coaxial cable 10 in the longitudinal direction is the same as the apparatus system of FIG. 1, but the other apparatus systems are slightly different. That is, the vertical drive device 400 that moves the cutting tool 100 in the vertical direction of the leaky coaxial cable 10 and the rotary drive device 500 that rotates the leaky coaxial cable 10 are used.

切削具１００は、ベーステーブル部材３１１の左右に立設された２本の立設部材３１３、３１３とこの２本の立設部材３１３、３１３間に渡された梁部材３２２とこの梁部材３２２の側面などに装着されたブロック部材３３２とを介して、当該ブロック部材３３２に取り付けられて、漏洩同軸ケーブル１０の外部導体１１に対して対峙させてある。なお、切削具自体の駆動手段はブロック部材３３２などに内蔵（図示省略）させてある。   The cutting tool 100 includes two standing members 313 and 313 erected on the left and right sides of the base table member 311, a beam member 322 passed between the two standing members 313 and 313, and the beam member 322. It is attached to the block member 332 via a block member 332 mounted on a side surface or the like, and is opposed to the outer conductor 11 of the leaky coaxial cable 10. The driving means for the cutting tool itself is built in the block member 332 (not shown).

上下駆動装置４００は、ベーステーブル部材３１１上に設置されて、漏洩同軸ケーブル１０を下方から支える可動テーブル部材４１０とこれを上下方向に駆動させる駆動（移動）手段（図示省略）とからなる。   The vertical drive device 400 includes a movable table member 410 that is installed on the base table member 311 and supports the leaky coaxial cable 10 from below, and driving (moving) means (not shown) that drives the movable coaxial member 10 in the vertical direction.

回転駆動装置５００は、漏洩同軸ケーブル１０を着脱可能に保持することができるチャック機構などの内蔵された円筒保持部材５１０とこれを回転駆動させる駆動（回転）手段（図示省略）とからなる。   The rotation driving device 500 includes a built-in cylindrical holding member 510 such as a chuck mechanism capable of detachably holding the leaky coaxial cable 10 and driving (rotating) means (not shown) for driving the rotation.

従って、スロット１２の形成時、固定された切削具１００に対して、上下駆動装置４００及び回転駆動装置５００の駆動により、漏洩同軸ケーブル１０を３次元的に運動させれば、漏洩同軸ケーブル１０の外部導体１１に対して、所望形状のスロット１２を自在に形成することができる。この研削時も、図１の場合と同様、外部導体１１表面の検知はセンサで行い、また、上下駆動装置４００及び回転駆動装置５００の駆動制御は予めプログラムさせたプログラム制御により行えばよい。勿論、一つのスロット形成が完了したら、搬送装置２００により漏洩同軸ケーブル１０自体を所望量だけ走行（搬送）させるものとする。   Therefore, when the slot 12 is formed, if the leaky coaxial cable 10 is moved three-dimensionally by driving the vertical drive device 400 and the rotary drive device 500 with respect to the fixed cutting tool 100, the leaky coaxial cable 10 A desired-shaped slot 12 can be freely formed in the outer conductor 11. Even during this grinding, the surface of the outer conductor 11 is detected by a sensor as in the case of FIG. 1, and the drive control of the vertical drive device 400 and the rotary drive device 500 may be performed by program control programmed in advance. Of course, when the formation of one slot is completed, the conveying device 200 causes the leaky coaxial cable 10 itself to travel (carry) by a desired amount.

これらの動作の繰り返しにより、図１の場合と同様、漏洩同軸ケーブル１０の外部導体１１の長手方向に多数のスロット１２を適宜間隔で形成することができる。勿論、図１の場合と同様、対向するスロット形状の向き（傾き）を変えたものとする場合には、予め格納されるプログラムのプログラム制御で対応すればよい。   By repeating these operations, a number of slots 12 can be formed at appropriate intervals in the longitudinal direction of the outer conductor 11 of the leaky coaxial cable 10 as in the case of FIG. Of course, as in the case of FIG. 1, when the direction (inclination) of the opposing slot shape is changed, it is only necessary to deal with program control of a program stored in advance.

また、用いる切削具１００も、図１の場合と同様、特に限定されないが、上述したような図２や図３に示すような、加工用エンドミル１００ａや円盤型の回転鋸１００ｂなどを用いることができる。   Further, the cutting tool 100 to be used is not particularly limited as in the case of FIG. 1, but the processing end mill 100a, the disk-type rotary saw 100b, etc. as shown in FIGS. it can.

（試験例）
外径６．４ｍｍ、絶縁体径５．４ｍｍ、中心導体径1.6mm 、長さ２ｍのセミフレキブル型の同軸ケーブル（編組をメッキしたもの）に対して、図１に示した本発明方法を適用して、目的の漏洩同軸ケーブルを得た。ここで、外部導体のスロット形状は、図５に示すように、その長さは５．４ｍｍ、幅は３．０ｍｍで、同一形状のスロット間の間隔（ピッチ）は３５ｍｍである。また、用いた切削具は、図２に示した如き、加工用エンドミル１００ａで、その軸径（外径）は２ｍｍのものである。 (Test example)
The method of the present invention shown in FIG. 1 is applied to a semi-flexible coaxial cable (plated braid) having an outer diameter of 6.4 mm, an insulator diameter of 5.4 mm, a center conductor diameter of 1.6 mm, and a length of 2 m. The target leaky coaxial cable was obtained. Here, as shown in FIG. 5, the slot shape of the outer conductor is 5.4 mm in length and 3.0 mm in width, and the interval (pitch) between slots of the same shape is 35 mm. The cutting tool used is a machining end mill 100a as shown in FIG. 2, and the shaft diameter (outer diameter) is 2 mm.

この得られた漏洩同軸ケーブルについて、図６に示した測定系により、電磁波の放射率を示す結合損失を測定した。その結果は図７の如くであった。これによると、約７０ｄＢの結合損失が得られ、ケーブル外部への放射が確認できた。
なお、ここで、結合損失（ｄＢ）は、−１０ｌｏｇ（ＰR ／Ｐin）により求めた。また、式中ＰR は受信信号、Ｐinは漏洩同軸ケーブルへの入力信号である。図６、図７中のｘは発振信号の入力端からの距離である。
また、スロットの形成にあたって、加工用エンドミル１００ａとして、軸径は３ｍｍのもの（スロットの幅と同一）を用いたところ、上記軸径は２ｍｍのものに比較して、加工時間が半分に短縮できることが確認できた。 About the obtained leaky coaxial cable, the coupling loss which shows the emissivity of electromagnetic waves was measured with the measuring system shown in FIG. The result was as shown in FIG. According to this, a coupling loss of about 70 dB was obtained, and radiation to the outside of the cable was confirmed.
Here, the coupling loss (dB) was obtained from -10 log (PR / Pin). In the equation, PR is a received signal, and Pin is an input signal to the leaky coaxial cable. 6 and 7, x is the distance from the input end of the oscillation signal.
Further, when forming the slot, a machining end mill 100a having a shaft diameter of 3 mm (same as the width of the slot) is used, so that the machining time can be reduced by half compared to the shaft diameter of 2 mm. Was confirmed.

また、上記と同じセミフレキブル型の同軸ケーブルに対して、切削具として、図３に示した如き、円盤型の回転鋸１００ｂ（外径は８０ｍｍ、肉厚は２ｍｍ）を用いて、目的の漏洩同軸ケーブルを得た。この外部導体のスロット形状は、図８に示すように、その長さは５．０ｍｍ、幅は２．０ｍｍで、同一形状のスロット間の間隔（ピッチ）は３５ｍｍである。   For the same semi-flexible coaxial cable as described above, a disc-shaped rotary saw 100b (outer diameter is 80 mm, wall thickness is 2 mm) is used as a cutting tool as shown in FIG. Got the cable. As shown in FIG. 8, the slot shape of the outer conductor is 5.0 mm in length and 2.0 mm in width, and the interval (pitch) between slots of the same shape is 35 mm.

この得られた漏洩同軸ケーブルについて、上記図６と同様の測定系により、電磁波の放射率を示す結合損失を測定した。その結果は図９の如くであった。これによると、約８０ｄＢの結合損失が得られ、ケーブル外部への放射が確認できた。
また、スロットの形成にあたって、円盤型の回転鋸１００ｂの場合、上記の加工用エンドミル１００ａに比較して、より短い時間、即ち、１／１０程度の時間で形成できた。 About this obtained leaky coaxial cable, the coupling loss which shows the emissivity of electromagnetic waves was measured by the same measurement system as the said FIG. The result was as shown in FIG. According to this, a coupling loss of about 80 dB was obtained, and radiation to the outside of the cable was confirmed.
Further, when forming the slot, the disk-type rotary saw 100b could be formed in a shorter time, that is, about 1/10 of the time compared to the above-described processing end mill 100a.

本発明に係る漏洩同軸ケーブルの製造方法の一例を示した概略斜視図である。It is the schematic perspective view which showed an example of the manufacturing method of the leaky coaxial cable which concerns on this invention. 図１の方法における切削具の一例を示した概略説明図である。It is the schematic explanatory drawing which showed an example of the cutting tool in the method of FIG. 図１の方法における切削具の他の例を示した概略説明図である。It is the schematic explanatory drawing which showed the other example of the cutting tool in the method of FIG. 本発明に係る漏洩同軸ケーブルの製造方法の他の例を示した概略斜視図である。It is the schematic perspective view which showed the other example of the manufacturing method of the leaky coaxial cable which concerns on this invention. 本発明の製造方法により得られた漏洩同軸ケーブルの一例を示した概略斜視図である。It is the schematic perspective view which showed an example of the leaky coaxial cable obtained by the manufacturing method of this invention. 漏洩同軸ケーブルの結合損失の測定系を示した概略説明図である。It is the schematic explanatory drawing which showed the measurement system of the coupling loss of a leaky coaxial cable. 図５の漏洩同軸ケーブルの結合損失を示したグラフである。It is the graph which showed the coupling loss of the leaky coaxial cable of FIG. 本発明の製造方法により得られた漏洩同軸ケーブルの他の例を示した概略斜視図である。It is the schematic perspective view which showed the other example of the leaky coaxial cable obtained by the manufacturing method of this invention. 図８の漏洩同軸ケーブルの結合損失を示したグラフである。It is the graph which showed the coupling loss of the leaky coaxial cable of FIG.

符号の説明Explanation of symbols

１０・・・漏洩同軸ケーブル、１１・・・外部導体、１２・・・スロット、１００・・・切削具、１００ａ・・・加工用エンドミル、１００ｂ・・・円盤型の回転鋸、２００・・・搬送装置、３００・・・３次元駆動装置、４００・・・上下駆動装置、５００・・・回転駆動装置   DESCRIPTION OF SYMBOLS 10 ... Leaky coaxial cable, 11 ... Outer conductor, 12 ... Slot, 100 ... Cutting tool, 100a ... End mill for processing, 100b ... Disc-shaped rotary saw, 200 ... Conveying device, 300... Three-dimensional driving device, 400... Vertical driving device, 500.

Claims (5)

切削具により漏洩同軸ケーブルの外部導体に電磁波漏洩用のスロットを形成する方法であって、漏洩同軸ケーブルを長手方向に搬送させる搬送装置と、前記切削具を前記漏洩同軸ケーブルの走行方向に移動させる第１駆動機構と前記漏洩同軸ケーブルの上下方向に移動させる第２駆動機構と前記漏洩同軸ケーブルの幅方向に移動させる第３駆動機構を有する３次元駆動装置とにより、前記切削具を、前記漏洩同軸ケーブルに対して３次元駆動させて、前記電磁波漏洩用のスロットを形成することを特徴とする漏洩同軸ケーブルの製造方法。 A method for forming a slot for electromagnetic wave leakage in an outer conductor of a leaky coaxial cable by a cutting tool, the transfer device for transferring the leaky coaxial cable in a longitudinal direction, and moving the cutting tool in the traveling direction of the leaky coaxial cable The three-dimensional drive device having a first drive mechanism, a second drive mechanism that moves the leaky coaxial cable in the vertical direction, and a third drive mechanism that moves the leaky coaxial cable in the width direction causes the cutting tool to leak. A method of manufacturing a leaky coaxial cable, wherein the electromagnetic cable leakage slot is formed by three-dimensionally driving the coaxial cable. 切削具により漏洩同軸ケーブルの外部導体に電磁波漏洩用のスロットを形成する方法であって、漏洩同軸ケーブルを長手方向に搬送させる搬送装置と、前記切削具を前記漏洩同軸ケーブルの上下方向に移動させる上下駆動装置と、前記漏洩同軸ケーブルを回転させる回転駆動装置とにより、前記切削具に対して、前記漏洩同軸ケーブルを３次元移動させて、前記電磁波漏洩用のスロットを形成することを特徴とする漏洩同軸ケーブルの製造方法。 A method of forming a slot for electromagnetic wave leakage in an outer conductor of a leaky coaxial cable by a cutting tool, a conveying device for conveying the leaky coaxial cable in a longitudinal direction, and moving the cutting tool in the vertical direction of the leaky coaxial cable The electromagnetic wave leakage slot is formed by moving the leakage coaxial cable three-dimensionally with respect to the cutting tool by a vertical driving device and a rotation driving device for rotating the leakage coaxial cable. Manufacturing method of leaky coaxial cable. 前記切削具が、加工用エンドミルであることを特徴とする請求項１又は２記載の漏洩同軸ケーブルの製造方法。 The method for manufacturing a leaky coaxial cable according to claim 1, wherein the cutting tool is a processing end mill. 前記加工用エンドミルの切削幅が、前記電磁波漏洩用のスロットの幅に相当することを特徴とする請求項３記載の漏洩同軸ケーブルの製造方法。 4. The method of manufacturing a leaky coaxial cable according to claim 3, wherein a cutting width of the machining end mill corresponds to a width of the electromagnetic wave leakage slot. 前記切削具が、円盤型の回転鋸であることを特徴とする請求項１又は２記載の漏洩同軸ケーブルの製造方法。 3. The method of manufacturing a leaky coaxial cable according to claim 1, wherein the cutting tool is a disk-type rotary saw.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102013540A (en) * 2010-12-10 2011-04-13 北京交通大学 Leaky coaxial cable for radiating circular polarization waves in circumferential 260 DEG range
CN113454426A (en) * 2018-12-20 2021-09-28 舍弗勒技术股份两合公司 Detection system and wind driven generator
CN115939720A (en) * 2023-01-31 2023-04-07 滁州润翰微波科技有限公司 Production process and production equipment for flexible directional leakage coaxial cable

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JPH09198941A (en) * 1996-01-18 1997-07-31 Furukawa Electric Co Ltd:The Manufacture of leakage coaxial cable
JPH10193001A (en) * 1996-12-27 1998-07-28 High Frequency Heattreat Co Ltd Slot hole press unit and slot hole working device
JP2003179415A (en) * 2001-12-13 2003-06-27 Mitsubishi Cable Ind Ltd Leakage waveguide and manufacturing method thereof

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Publication number Priority date Publication date Assignee Title
JPH09198941A (en) * 1996-01-18 1997-07-31 Furukawa Electric Co Ltd:The Manufacture of leakage coaxial cable
JPH10193001A (en) * 1996-12-27 1998-07-28 High Frequency Heattreat Co Ltd Slot hole press unit and slot hole working device
JP2003179415A (en) * 2001-12-13 2003-06-27 Mitsubishi Cable Ind Ltd Leakage waveguide and manufacturing method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102013540A (en) * 2010-12-10 2011-04-13 北京交通大学 Leaky coaxial cable for radiating circular polarization waves in circumferential 260 DEG range
CN113454426A (en) * 2018-12-20 2021-09-28 舍弗勒技术股份两合公司 Detection system and wind driven generator
CN115939720A (en) * 2023-01-31 2023-04-07 滁州润翰微波科技有限公司 Production process and production equipment for flexible directional leakage coaxial cable

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