九、發明說明： 【發明所屬之技術領域】 本發明係有關將導線與端子雷射熔接之雷射熔接裝置。 【先前技術】 例如有從電纜突出之芯線等的導線，與被設置於連結器 _的熔接對象物之端子，藉由雷射熔接作電性連接的技術 (例如參照專利文獻1 )。在此技術中，導線的前端部抵接 &端子的狀態下，透過將雷射光照射於該前端部，把導線 與端子熔融接合。使用此技術的情況時，在進行雷射熔接 期間’有必要保持導線使其前端部不會從雷射光照射的位 ®偏離。當此導線前端部的定位精度惡化時，雷射光對導 線之命中標的不穩定，以致接合品質產生變動。 專利文獻1 :日本專利特開2007 — 326 140號公報 【發明內容】 [發明所欲解決之課題] 然而，例如像非常細之電纜的芯線等，在導線之柔軟性 高的情況，即使欲保持從該電纜的前端部離開的位置使導 線的前端部抵接於端子，還是會因導線彎曲，而難以使要 保持導線的前端部不偏離。又，由於熔接對象物之連結器 的形狀等的要因而使可雷射熔接之部位受限於接近導線前 端部的位置時，當按壓導線的前端部完成保持時，造成難 以照射雷射光。 本發明乃有鑒於上述實情而完成者，其目的之一乃提供 一種用於將導線的前端部不會從端子上的位置偏離的方式 將導線保持而可進行雷射熔接之雷射熔接裝置。 13-52003 〔用以解決課題之手段〕 ' 爲了解決上述課題之有關本發明的雷射熔接裝置’係一 ' 種用於將導線與被設置於熔接對象物之端子進行雷射熔接 之雷射熔接裝置，具備有··第1保持構件，係置於設置有 該熔接對象物之該端子的面上，且設有俯視時凹成3字狀 ‘ 的導引部，該導引部用以將該導線的前端部導引至該端子 . 上，及第2保持構件，係在該導線的前端部被導入至該導 引部的狀態下按壓該導線，其特徵在於：朝比該導線之該 φ 第2保持構件所按壓的位置還更前端側照射雷射光以進行 雷射熔接。 又，上述雷射熔接裝置，係朝該導線之被導入該導引部 內的部分照射雷射光以進行雷射熔接，而該第1保持構 件，係亦可在雷射熔接時，將設有該端子的面之雷射光可 照射的位置之周邊部遮光。 又，在上述雷射熔接裝置中，該第2保持構件，係藉由 具備有可維持該第2保持構件之抵接於該導線的部位和設 ^ 置有該端子的面之間僅離開既定距離的狀態之機構所支 撐，該既定距離，係亦可較該導線直徑大，而且較該導線 直徑與導引部之高度的合計値小。 - 又，在上述雷射熔接裝置中，該第1保持構件的表面， 係亦可藉由融點比該導線高的材料所形成。 Λ 又，在上述雷射熔接裝置中，該第2保持構件的表面， 係藉由融點比該導線高的材料所形成。 又，在上述雷射熔接裝置中，該第1保持構件，係由位 在比該端子被設置之面更上方，且能以較該導線的前端部 1352003 更前面的位置作爲旋轉中心旋轉的支撐部所支撐，透過該 ' 支撐部的旋轉而移動到設置有該端子的面上。 又，在上述雷射熔接裝置中，該第2保持構件，係由比 該端子被設置之面更下方，且能以較該導線的前端部還更 前面的位置作爲旋轉中心旋轉的支撐部所支撐，透過該支 • 撐部的旋轉而與該導線抵接。 . 〔發明效果〕 根據本發明時，藉由第1保持構件將導線導引至俯視時 φ 成=1字狀的導引部，且藉由第2保持構件將導線從上面按 壓的狀態下保持導線，使導線不會從端子上的位置偏離而 固定以進行雷射熔接。 【實施方式】 〔發明之最佳實施形態〕 以下’ 一邊參照圖式一邊說明有關本發明之實施形態。 首先，根據第1圖說明有關雷射熔接裝置10之大致構 成。第1圖係有關本發明之一實施形態的雷射熔接裝置1 〇 φ 之立體圖。如該圖所示，雷射熔接裝置10係包含連結器保 持部11、第1保持構件12、第1保持構件連結部13、第1 保持構件支撐部14、第2保持構件15及第2保持構件支撐 ' 部16所構成。此外，在第1圖，顯示了於本實施形態中成 . 爲雷射熔接對象的連結器（熔接對象物）20被保持在雷射 熔接裝置10之連結器保持部11的狀態。 在連結器20的一面上，設置有複數個金屬端子21。此 外’以下’將連結器20之設置有金屬端子21的面，稱爲 端子面22。各金屬端子21的表面，爲大致矩形的形狀，而 IJ52003 沿著矩形的寬度方向被等間隔地排列配置在端子面22 上。又，端子面22之中，金屬端子21除外之金屬端子21 之周圍的部分，係由樹脂所形成。以下，將此端子面22的 金屬端子21以外的表面部分稱爲樹脂部23。又，外壁24 及突起部25係相對此端子面22垂直地突出而形成。外壁 24係成爲扣除端子面22的外周之中配置有電纜30之方向 的包圍3邊之構造。又，突起部25係建構成沿著端子面22 的未形成外壁24之一邊形成複數個隔開的部分，分別導引 電纜30。 雷射熔接裝置10,係對此複數個金屬端子21的每一個， 將複數條電纜30之各個前端部對披覆層被剝離而露出的 芯線（導線）3 1施以雷射熔接。 連結器保持部11，係成爲雷射熔接裝置10的座台，而形 成可收容連結器20的形狀。連結器20係被收容在此連結 器保持部11且被保持。此時連結器20係以端子面22朝上 的狀態被固定。 第1保持構件12，係與第1保持構件連結部13 —體形 成，此第1保持構件連結部13透過被安裝於第1保持構件 支撐部14,而被第1保持構件支撐部14所支撐。第1保持 構件支撐部1 4，係如第1圖的箭頭所示，以旋轉軸1 4a作 爲旋轉中心可對連結器保持部11旋轉移動。而且，被安 裝於第1保持構件支撐部14之第1保持構件連結部13其 截面成爲L字狀，L字的一端被連接於第1保持構件支撐 部14。又，L字狀的另一端，作成平板狀形狀的第1保持 構件12以與第1保持構件連結部13正交的方式被連接。 1352003 第1保持構件支撐部14，係透過以旋轉軸i4a爲旋轉中心 的旋轉移動，可使第1保持構件12以接觸端子面22上的 方式移動。 第2保持構件15’係透過被安裝於第2保持構件支撐部 16而由第2保持構件支撐部16所支撐，伴隨著第2保持構 件支撐部16而移動。第2保持構件支撐部16係與第1保 持構件支撐部14同樣地，成爲以旋轉軸16a爲旋轉中心可 對連結器保持部11旋轉移動。又，第2保持構件支撐部16, 係截面曲折成〕字狀而形成，在與其旋轉軸16a相反側之 前端部分，安裝有第2保持構件15。具體而言，第2保持 構件15作成截面L字狀的角柱形狀，其L字的一邊與第2 保持構件支撐部16連接。第2保持構件支撐部16,係透過 以旋轉軸16a爲中心之旋轉移動，將與連結器20之金屬端 子21的位置配合而配置之電纜30的芯線31從上方按壓的 方式，可使第2保持構件15移動。又，在第2保持構件支 撐部1 6設置有雷射照射用開口部1 6b。雷射照射用開口部 16b爲矩形的形狀，以貫通第2保持構件支撐部16的方式 而形成。 第2圖係在第1圖所示之雷射熔接裝置10中，藉由第i 保持構件支撐部14之旋轉移動使第1保持構件12置於連 結器20之端子面22上，且以電纜30之芯線31各自能配 合金屬端子21的位置之方式’顯不電績30被配置之狀態 的立體圖。又，第3圖係從雷射熔接裝置10的上方所見第 2圖中以虛線示出之A部的部分之上視圖。再者，第4圖 係顯示與芯線3 1之軸方向平行且與端子面22垂直之面將 1352003 電纜30及雷射熔接裝置10切斷之樣子的部分截面圖。 如該等圖所示，在第〗保持構件12之與電纜30對向之 側的一面，僅對應設置於連結器20之金屬端子21的數目 而設有俯視時凹成=字狀的相應數量之導引部12a。此導引 部1 2a係配置成以對應端子面22上配置金屬端子2 1之間 隔的間隔作設置，當第1保持構件12放置於端子面22上 時導引部12a的位置會對合金屬端子21的位置。又，導引 部12a的開口部分的寬度w之値，係比芯線31之直徑r大， 且較金屬端子21之寬度方向的寬度小。又，導引部12a深 入之d値，係成爲對應金屬端子21之長度方向的大小之 値。再者，第1保持構件12之形成有導引部12a之部分的 高度h之値，係成爲對應芯線3 1的直徑r之値。 此導引部12a係扮演把芯線31之前端部導引至金屬端子 21上的角色。即，在使第1保持構件12接觸端子面22之 狀態下，透過能把芯線3 1分別導入複數個導引部1 2a之每 —個的內部的方式配置電纜30，而第3圖所示，從上面看 各個芯線31可整齊地位於金屬端子21之上方的位置。 再者，如此將芯線31的前端部導入導引部12a之狀態 下，透過第2保持構件支撐部16使第2保持構件15移動， 而從芯線31的前端部僅離開既定距離的部位藉由第2保持 構件15的前端部按壓於端子面22，使芯線31的位置不會 引起偏差地加以保持。第5圖係顯示芯線3 1被第2保持構 件15所按壓之狀態的雷射熔接裝置10之立體圖。 在此，第2保持構件支撐部16，係成爲可在第2保持構 件15接觸芯線31而將芯線31按壓於端子面22的當前， -10- 1352003 保持暫時停止狀態的構造。即，第2保持構件支撐部16, 係具備可維持第2保持構件15與端子面22之間僅離開既 定距離t的狀態之機構。此既定距離〖係比芯線31的直徑 r大，且較芯線31的直徑r及導引部i2a的高度h之合計 値（r+h)還小的距離。此機構可藉由例如高度調整用的螺旋 ' 及凸輪、或可伸縮之彈簧等的彈性構件與維持該彈性構件 . 成爲既定之長度狀態的鎖緊裝置等而可實現。 如此’透過維持第2保持構件15從端子面22僅離開既 φ 定距離t的狀態，可在芯線31未被第2保持構件15完全 固定之下作暫時按壓。第6(a)圖及第6(b)圖係關於藉由該 第2保持構件15暫時按壓芯線31之說明圖，係顯示將配 置有連結器20及電纜30之狀態的雷射熔接裝置1〇以與芯 線31之軸方向平行且與端子面22垂直的面切開的樣子之 部分截面圖。此外，在該等圖中以虛線的圓形所顯示之部 位係表示雷射照射裝置1 7。在本實施形態中，此雷射照射 裝置17係芯線31之前端當部中被導入導引部12a內的部 • 分，成爲比第2保持構件1 5所抵接之部位還更前端側。 第6(a)圖係使第2保持構件15之前端部（即抵接於芯線 31之部位）在僅離開端子面22既定距離t的位置停止，而 ' 示出暫時施以按壓的狀態。在此，既定距離t係較芯線3 1 • 的直徑r及導引部1 2a的高度h之合計値還小，所以若芯 線3 1之前端部被導入導引部1 2a內時，即使芯線3 1多少 有移動，但因爲被第2保持構件15所按壓，所以不會有露 出導引部12a的上方而飛出外部的情形。另一方面，既定 距離t因爲較芯線31的直徑r還大，所以在第2保持構件 -11- 1352003 1 5與芯線3 1之間或芯線3 1與端子面22之間至少任何一方 - 會產生間隙，以致芯線31未完全被端子面22所按壓。因 ' 此，此被暫時按壓的狀態下，如同第6(a)圖中之箭頭所示， 可使電纜30沿著芯線31的軸方向移動。藉此，透過導引 部12a保持芯線31不會向橫向變動的狀態，可進行調整芯 - 線31的前後位置。進行調整芯線31的位置使芯線31的前 . 端部能到達導引部12a的最深處時，可使從芯線31的前端 部到雷射照射裝置17爲止之距離大致成爲一定。 φ 而且，在進行如以上說明之位置調整而把芯線31配置在 金屬端子2 1上之雷射照射裝置1 7之狀態後，透過從該暫 時按壓的狀態再使第2保持構件支撐部16旋轉移動，如第 6(b)圖所示，使第2保持構件15的前端部抵接於芯線31， 將芯線31按壓於端子面22。藉此，可使芯線31固定而不 致引起比此更大的位置變動。此時，如第5圖所示，被設 置於第2保持構件支撐部16之雷射照射用開口部16b，成 爲位於雷射照射裝置1 7之上方的位置。雷射熔接裝置1 0 | 在此狀態下，經由雷射照射用開口部1 6b並從上方對雷射 照射裝置1 7照射雷射光，將芯線3 1與金屬端子2 1施以雷 射熔接。 - 在本實施形態，施以該雷射熔接時，第1保持構件1 2成 • 爲實行遮光罩之機能。第7(a)圖及第7(b)圖係用以說明該 第1保持構件1 2之遮光罩機能的圖，係顯示芯線31及連 結器20以與芯線31之軸向垂直的面切割的樣子之部分截 面圖。在此，第7(a)圖係顯示在沒有第1保持構件12時， 雷射光照射於芯線31的樣子，第7(b)圖係顯示在有第1保 -12- 1352003 持構件12的情況。如第7(a)圖所示，假設沒有第1保持構 件1 2時，透過所照射之雷射光碰觸到芯線31後之反射或 散射，造成反射光或散射光照射於端子面22的樹脂部23。 當雷射光照射於樹脂部23時，樹脂部23燒焦使連結器20 的外觀劣化，更因爲碳化而使複數個金屬端子21彼此間之 耐電壓或絕緣強度降低。尤其複數個金屬端子21彼此間之 距離短的情況，此問題產生的危險性變高。 另一方面，如第7(b)圖所示，在本實施形態中，第1保 持構件1 2被放置在端子面22上的狀態下進行雷射光照 射。再者，被設置於第1保持構件12之導引部12a的寬度 w，如前所述，比金屬端子21之寬度方向的寬度小。因此， 第1保持構件12藉由導引部12a把芯線31確實地導入金 屬端子21上，同時可將金屬端子21之雷射照射裝置17周 邊的樹脂部23覆蓋。藉此，如第7(b)圖所示，第1保持構 件1 2能以使雷射光之反射光或散射光不會照射於雷射照 射裝置17周邊之樹脂部23的方式予以遮光。 此外，第1保持構件1 2之至少表面部分係由融點比芯線 31更高的材料所形成者較佳，使得第1保持構件12不會依 此雷射光之照射而熔融之金屬端子21或藉來自芯線31之 熱傳遞而熔融。作爲如此高融點的材料，例如，可列舉有 鎢或鉬、鉬、陶瓷等。又’第2保持構件15之表面部分， 也同樣亦可由融點比芯線3 1更高的材料所形成》 在此，茲針對第1保持構件支撐部14與第2保持構件支 撐部1 6之旋轉軸的位置關係作說明。第8圖係說明該各旋 轉軸的位置關係圖’係顯示從雷射熔接裝置10之側面方向 -13- 1352003 看時構成雷射熔接裝置10之主要部分的位置關係。如第8 圖所示，屬第1保持構件支撐部14之旋轉中心的旋轉軸 14a，係位於端子面22的更上方（即’雷射光射入端子面 22之側），且設置於比芯線31之前端部更前方的位置。如 此，透過第1保持構件支撐部14以這樣的旋轉軸14a爲中 • 心旋轉，第1保持構件12係如同圖中實線的箭頭所示，暫 . 時朝紙面從左側向右方向後，最後放置在端子面22上時， 成爲採取朝紙面從右側向左方下降至端子面22上之移動 φ 路徑。藉此，第1保持構件支撐部14，係與對連結器20 之端子面22垂直設置的外壁24不干涉的方式，可使第1 保持構件12在端子面22上移動。 又，如第8圖所示，屬第2保持構件支撐部16之旋轉中 心的旋轉軸16a，係位於端子面22的更下方（即，雷射光 射入端子面22之側的相反側），且被設置於比芯線3 1之前 端部更前方的位置。如此，透過第2保持構件支撐部16以 旋轉軸16a爲中心旋轉，第2保持構件15係如圖中虛線的 φ 箭頭所示，在第2保持構件15按壓芯線31時，成爲採取 朝紙面從左側向右方下降至芯線31上之移動路徑。藉此， 第2保持構件支撐部16,係以與設置在連結器20之端子面 • 22上的突起部25不干涉的方式，可將第2保持構件15移 ， 動到抵接於芯線3 1的位置。 透過將旋轉軸14a及16a配置於如以上所說明之位置， 熔接對象物即使係小型的連結器等，而端子面22上的空間 又受到限制的情況，用作爲將第1保持構件1 2及第2保持 構件15配置於端子面22或芯線31上之機構，可採用具有 -14- 1352003 作業性良好之旋轉機構的支撐部。 根據以上所說明之有關本發明之實施形態的雷射熔接裝 置10時，係將芯線31導入於設置在第1保持構件12之俯 視時成=?字狀的導引部12a，且藉由透過第2保持構件15 把芯線31從上面按壓的狀態下保持芯線3 1，可使芯線31 以不會從進行雷射照射之位置離開的方式將芯線3 1固定。 藉此，可將僅離開芯線31之前端部一定的距離之位置確實 地施以雷射熔接，可抑制各芯線3 1之接合品質的變動。 又，由於第1保持構件12係執行將端子面22中之雷射 照射位置1 7周邊的樹脂部23遮光之遮光罩的機能，所以 可防止樹脂部2 3因雷射光之反射光或散射光而損傷。 【圖式簡單說明】 第1圖係有關本發明之實施形態的雷射熔接裝置之立.體 圖。 第2圖係顯示配置有電纜之狀態的雷射熔接裝置之立體 圖。 第3圖係顯示配置有電纜之狀態的雷射熔接裝置之一部 分的部分上視圖。 第4圖係顯示配置有電纜之狀態的雷射熔接裝置之一部 分的部分截面圖。 第5圖係顯示透過第2保持構件芯線被按壓之狀態的雷 射熔接裝置之立體圖。 第6(a)、（b)圖係關於藉由第2保持構件暫時按壓芯線的 說明圖。 第7(a)、（b)圖係作爲第1保持構件之遮光罩的機能之說 明圖。 第8圖係說明第1保持構件支撐部及第2保持構件支撐部 -15- 1352003 之旋轉軸的位置關係圖。 【主要元件符號說明】IX. INSTRUCTIONS OF THE INVENTION: TECHNICAL FIELD OF THE INVENTION The present invention relates to a laser welding device for welding a wire to a terminal laser. [Prior Art] For example, a wire such as a core wire protruding from a cable is electrically connected to a terminal of a welded object provided in the connector _ by laser welding (see, for example, Patent Document 1). In this technique, the leading end portion of the wire is in contact with the & terminal, and the laser beam is irradiated to the tip end portion to fuse the wire to the terminal. In the case of using this technique, it is necessary to keep the wire so that its leading end portion does not deviate from the position of the laser light irradiation during the laser welding. When the positioning accuracy of the leading end portion of the wire is deteriorated, the laser light is unstable to the hit target of the wire, so that the bonding quality fluctuates. [Problem to be Solved by the Invention] However, for example, a core wire of a very thin cable or the like has a high flexibility when the wire is high, even if it is intended to be maintained When the front end portion of the cable is separated from the terminal end portion of the cable, the tip end portion of the wire is abutted against the terminal, and the wire is bent, so that it is difficult to keep the tip end portion of the wire from being deviated. Further, the shape of the connector to be welded is limited to the position close to the front end portion of the lead wire when the portion to be laser-welded is restricted. When the front end portion of the pressing lead wire is held, it is difficult to irradiate the laser light. The present invention has been made in view of the above circumstances, and an object thereof is to provide a laser welding apparatus capable of performing laser welding in which a lead wire is held so that a front end portion of a wire does not deviate from a position on a terminal. 13-52003 [Means for Solving the Problem] 'The laser welding device according to the present invention for solving the above problems' is a laser for performing laser welding of a wire and a terminal provided on the object to be welded. The welding device includes a first holding member that is placed on a surface on which the terminal of the welding target is provided, and a guide portion that is recessed in a figure of three in a plan view, and the guide portion is used for the guide portion. The leading end portion of the lead wire is guided to the terminal. The second holding member presses the lead wire in a state where the leading end portion of the lead wire is introduced into the guiding portion, and is characterized by: At the position where the φ second holding member is pressed, the laser beam is irradiated to the front end side to perform laser welding. Further, in the above-described laser welding apparatus, laser light is irradiated to a portion of the lead wire that is introduced into the guide portion to perform laser welding, and the first holding member may be provided at the time of laser welding. The peripheral portion of the position where the laser light of the terminal can be illuminated is shielded from light. Further, in the above-described laser welding apparatus, the second holding member is provided only by a portion that can maintain the second holding member in contact with the lead wire and a surface on which the terminal is provided Supported by the mechanism of the distance state, the predetermined distance may be larger than the diameter of the wire, and is smaller than the total of the diameter of the wire and the height of the guiding portion. Further, in the above laser welding apparatus, the surface of the first holding member may be formed of a material having a higher melting point than the wire. Further, in the above laser welding apparatus, the surface of the second holding member is formed of a material having a higher melting point than the wire. Further, in the above-described laser welding apparatus, the first holding member is supported by a position which is located above a surface on which the terminal is provided and which is rotatable at a position further forward than a front end portion 1352003 of the lead wire. The portion is supported by the rotation of the 'support portion' and moved to the surface on which the terminal is provided. Further, in the above-described laser welding apparatus, the second holding member is supported by a support portion that is lower than a surface on which the terminal is provided and that is rotatable at a position further forward than a front end portion of the lead wire. And the wire is abutted by the rotation of the support portion. [Effect of the Invention] According to the present invention, the lead wire is guided by the first holding member to a guide portion having a diameter of =1 in a plan view, and is held by the second holding member while the wire is pressed from above. The wire is fixed so that the wire does not deviate from the position on the terminal for laser welding. [Embodiment] [Best Embodiment of the Invention] Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, the general configuration of the laser welding apparatus 10 will be described based on Fig. 1. Fig. 1 is a perspective view of a laser welding apparatus 1 〇 φ according to an embodiment of the present invention. As shown in the figure, the laser welding device 10 includes a connector holding portion 11, a first holding member 12, a first holding member connecting portion 13, a first holding member supporting portion 14, a second holding member 15, and a second holding. The member support portion 16 is constructed. In the first embodiment, the connector (the object to be welded) 20 to be subjected to the laser welding is held in the connector holding portion 11 of the laser welding device 10. On one side of the connector 20, a plurality of metal terminals 21 are provided. Further, the surface of the connector 20 on which the metal terminal 21 is provided is referred to as a terminal surface 22. The surface of each of the metal terminals 21 has a substantially rectangular shape, and IJ52003 is arranged on the terminal surface 22 at equal intervals along the width direction of the rectangle. Further, among the terminal faces 22, a portion around the metal terminals 21 excluding the metal terminals 21 is formed of a resin. Hereinafter, the surface portion other than the metal terminal 21 of the terminal surface 22 is referred to as a resin portion 23. Further, the outer wall 24 and the protruding portion 25 are formed to protrude perpendicularly to the terminal surface 22. The outer wall 24 is a structure that surrounds the three sides in the direction in which the cable 30 is disposed among the outer circumferences of the terminal faces 22. Further, the projections 25 are formed to form a plurality of spaced apart portions along one side of the terminal surface 22 where the outer wall 24 is not formed, and the cable 30 is guided. The laser welding apparatus 10 applies laser welding to each of the plurality of metal terminals 21 to the core wire (wire) 31 which is peeled off from the front end portion of the plurality of cables 30 and exposed. The connector holding portion 11 is a seat of the laser welding device 10 and has a shape in which the connector 20 can be housed. The connector 20 is housed in the connector holding portion 11 and held. At this time, the connector 20 is fixed with the terminal surface 22 facing upward. The first holding member 12 is integrally formed with the first holding member connecting portion 13 , and the first holding member connecting portion 13 is supported by the first holding member supporting portion 14 and supported by the first holding member supporting portion 14 . . The first holding member supporting portion 14 is rotatably movable to the connector holding portion 11 with the rotating shaft 14a as a center of rotation as indicated by an arrow in Fig. 1 . In addition, the first holding member connecting portion 13 that is attached to the first holding member supporting portion 14 has an L-shaped cross section, and one end of the L-shape is connected to the first holding member supporting portion 14. Further, the other end of the L-shape is connected to the first holding member 12 which is formed in a flat shape so as to be orthogonal to the first holding member connecting portion 13. 1352003 The first holding member support portion 14 is configured to move the first holding member 12 so as to contact the terminal surface 22 by the rotational movement of the rotation axis i4a as a center of rotation. The second holding member 15' is supported by the second holding member supporting portion 16 while being attached to the second holding member supporting portion 16, and moves along with the second holding member supporting portion 16. Similarly to the first holding member supporting portion 14, the second holding member supporting portion 16 is configured to be rotatable with respect to the connector holding portion 11 with the rotating shaft 16a as a center of rotation. Further, the second holding member supporting portion 16 is formed in a zigzag shape in a zigzag shape, and the second holding member 15 is attached to the distal end portion on the side opposite to the rotating shaft 16a. Specifically, the second holding member 15 is formed in a columnar shape having an L-shaped cross section, and one side of the L shape is connected to the second holding member supporting portion 16. The second holding member support portion 16 is configured to transmit the rotation of the core wire 31 of the cable 30 that is disposed to match the position of the metal terminal 21 of the connector 20 from above by the rotational movement about the rotation shaft 16a. The holding member 15 moves. Further, the second holding member supporting portion 16 is provided with a laser irradiation opening portion 16b. The laser irradiation opening portion 16b has a rectangular shape and is formed to penetrate the second holding member supporting portion 16. In the laser welding apparatus 10 shown in Fig. 1, the first holding member 12 is placed on the terminal face 22 of the connector 20 by the rotational movement of the i-th holding member supporting portion 14, and the cable is used. A perspective view of a state in which the 30 core wires 31 can match the position of the metal terminal 21 to indicate that the electrical performance 30 is disposed. Further, Fig. 3 is a top view of a portion of the portion A shown by a broken line in Fig. 2 seen from above the laser welding device 10. Further, Fig. 4 is a partial cross-sectional view showing a state in which the 1352003 cable 30 and the laser welding device 10 are cut in a plane parallel to the axial direction of the core wire 31 and perpendicular to the terminal surface 22. As shown in the figures, on the side of the first holding member 12 facing the cable 30, only the number of the metal terminals 21 provided in the connector 20 is provided, and the corresponding number of concave shapes in the plan view is provided. Guide portion 12a. The guiding portion 12 2 is disposed at an interval corresponding to the interval at which the metal terminals 21 are disposed on the terminal surface 22, and when the first holding member 12 is placed on the terminal surface 22, the position of the guiding portion 12a meets the metal. The position of the terminal 21. Further, the width w of the opening portion of the guide portion 12a is larger than the diameter r of the core wire 31 and smaller than the width of the metal terminal 21 in the width direction. Further, the depth of the guide portion 12a is set to be the size corresponding to the length direction of the metal terminal 21. Further, the height h of the portion of the first holding member 12 where the guide portion 12a is formed is equal to the diameter r of the core wire 31. This guide portion 12a serves to guide the front end portion of the core wire 31 to the metal terminal 21. In other words, in a state in which the first holding member 12 is brought into contact with the terminal surface 22, the cable 30 is placed so that the core wire 31 can be introduced into each of the plurality of guide portions 1 2a, and the cable 30 is arranged as shown in FIG. From the above, each of the core wires 31 can be neatly positioned above the metal terminals 21. In the state in which the distal end portion of the core wire 31 is introduced into the guide portion 12a, the second holding member 15 is moved by the second holding member supporting portion 16, and the portion away from the distal end portion of the core wire 31 by a predetermined distance is used. The distal end portion of the second holding member 15 is pressed against the terminal surface 22, and the position of the core wire 31 is held without variation. Fig. 5 is a perspective view showing the laser welding apparatus 10 in a state where the core wire 31 is pressed by the second holding member 15. Here, the second holding member supporting portion 16 has a structure in which the second holding member 15 is in contact with the core wire 31 and the core wire 31 is pressed against the terminal surface 22, and -10-1352003 is temporarily stopped. In other words, the second holding member support portion 16 is provided with a mechanism capable of maintaining a state in which the second holding member 15 and the terminal surface 22 are separated by a predetermined distance t. This predetermined distance is larger than the diameter r of the core wire 31 and smaller than the total 値(r+h) of the diameter r of the core wire 31 and the height h of the guide portion i2a. This mechanism can be realized by, for example, an elastic member such as a height adjustment spiral and a cam or a retractable spring, and a retaining means that maintains the elastic member in a predetermined length state. Thus, by maintaining the state in which the second holding member 15 is separated from the terminal surface 22 by only a predetermined distance t, the core wire 31 can be temporarily pressed without being completely fixed by the second holding member 15. 6(a) and 6(b) are diagrams showing the state in which the core wire 31 is temporarily pressed by the second holding member 15, and the laser welding device 1 in which the connector 20 and the cable 30 are placed is displayed. A partial cross-sectional view of the 切 in a plane parallel to the axial direction of the core wire 31 and perpendicular to the terminal surface 22 . Further, the position indicated by the dotted circle in the figures indicates the laser irradiation device 17. In the present embodiment, the laser irradiation device 17 is a portion of the front end portion of the core wire 31 that is introduced into the guide portion 12a, and is further forward than the portion where the second holding member 15 abuts. In Fig. 6(a), the front end portion of the second holding member 15 (i.e., the portion that abuts against the core wire 31) is stopped at a position that is only a predetermined distance t away from the terminal surface 22, and 'shows a state in which the pressing is temporarily applied. Here, the predetermined distance t is smaller than the total of the diameter r of the core wire 3 1 • and the height h of the guide portion 1 2a. Therefore, even if the front end of the core wire 3 1 is introduced into the guide portion 1 2a, even the core wire Although there is a slight movement of the 3 1 , the second holding member 15 is pressed, so that the upper portion of the guiding portion 12 a is not exposed and flies out of the outside. On the other hand, since the predetermined distance t is larger than the diameter r of the core wire 31, at least either one between the second holding member 111-1352003 15 and the core wire 3 1 or between the core wire 3 1 and the terminal face 22 A gap is generated such that the core wire 31 is not completely pressed by the terminal face 22. Therefore, in the state of being temporarily pressed, as shown by the arrow in Fig. 6(a), the cable 30 can be moved in the axial direction of the core wire 31. Thereby, the state in which the core wire 31 does not move in the lateral direction is maintained by the guide portion 12a, and the front and rear positions of the core wire 31 can be adjusted. When the position of the core wire 31 is adjusted so that the front end portion of the core wire 31 can reach the deepest portion of the guide portion 12a, the distance from the tip end portion of the core wire 31 to the laser irradiation device 17 can be made substantially constant. In the state of the laser irradiation device 17 in which the core wire 31 is placed on the metal terminal 21 in the position adjustment as described above, the second holding member supporting portion 16 is further rotated by the temporary pressing state. As shown in FIG. 6(b), the distal end portion of the second holding member 15 is brought into contact with the core wire 31, and the core wire 31 is pressed against the terminal surface 22. Thereby, the core wire 31 can be fixed without causing a larger positional change than this. At this time, as shown in Fig. 5, the laser irradiation opening portion 16b provided in the second holding member supporting portion 16 is positioned above the laser irradiation device 17. In this state, the laser irradiation device 17 is irradiated with laser light from above through the opening portion 16b for laser irradiation, and the core wire 3 1 and the metal terminal 2 1 are subjected to laser welding. - In the present embodiment, when the laser welding is performed, the first holding member 1 2 functions as a hood. 7(a) and 7(b) are views for explaining the function of the hood of the first holding member 12, showing that the core wire 31 and the connector 20 are cut in a plane perpendicular to the axial direction of the core wire 31. Partial cross-section of the look. Here, the seventh (a) diagram shows how the laser light is irradiated onto the core wire 31 when the first holding member 12 is absent, and the seventh (b) figure is displayed on the first holding -12-1352003 holding member 12. Happening. As shown in Fig. 7(a), it is assumed that when the first holding member 1 2 is absent, reflection or scattering after the irradiated laser light hits the core wire 31 causes the reflected or scattered light to illuminate the resin of the terminal face 22. Part 23. When the laser beam is irradiated onto the resin portion 23, the resin portion 23 is burnt to deteriorate the appearance of the connector 20, and the voltage resistance or the dielectric strength between the plurality of metal terminals 21 is lowered by carbonization. In particular, when the distance between the plurality of metal terminals 21 is short, the risk of this problem becomes high. On the other hand, as shown in Fig. 7(b), in the present embodiment, the first holding member 12 is placed on the terminal surface 22 in a state where laser light is emitted. Further, the width w of the guide portion 12a provided in the first holding member 12 is smaller than the width of the metal terminal 21 in the width direction as described above. Therefore, the first holding member 12 can positively guide the core wire 31 to the metal terminal 21 by the guide portion 12a, and can cover the resin portion 23 around the laser irradiation device 17 of the metal terminal 21. As a result, as shown in Fig. 7(b), the first holding member 1 2 can shield the reflected light or the scattered light of the laser light from being irradiated onto the resin portion 23 around the laser irradiation device 17. Further, at least the surface portion of the first holding member 12 is preferably formed of a material having a higher melting point than the core wire 31, so that the first holding member 12 does not melt the metal terminal 21 according to the irradiation of the laser light or It is melted by heat transfer from the core wire 31. Examples of the material having such a high melting point include tungsten, molybdenum, molybdenum, ceramics, and the like. Further, the surface portion of the second holding member 15 may be formed of a material having a higher melting point than the core wire 31. Here, the first holding member supporting portion 14 and the second holding member supporting portion 16 are formed. The positional relationship of the rotating shaft is explained. Fig. 8 is a view showing the positional relationship of the respective rotating shafts showing the positional relationship of the main portion of the laser welding apparatus 10 when viewed from the side direction of the laser welding apparatus 10 -13-1352003. As shown in Fig. 8, the rotation shaft 14a belonging to the rotation center of the first holding member supporting portion 14 is located above the terminal surface 22 (i.e., 'the side where the laser light is incident on the terminal surface 22'), and is disposed on the core wire. 31 is the front position of the front end. In this manner, the first holding member supporting portion 14 is rotated about the center of rotation of the rotating shaft 14a. The first holding member 12 is as shown by the arrow in the solid line in the drawing, and is temporarily moved from the left side to the right side toward the paper surface. When it is finally placed on the terminal surface 22, it becomes a path of movement φ which is lowered from the right side to the left side toward the terminal surface 22 toward the paper surface. Thereby, the first holding member support portion 14 can move the first holding member 12 on the terminal surface 22 so as not to interfere with the outer wall 24 provided perpendicular to the terminal surface 22 of the connector 20. Further, as shown in Fig. 8, the rotation shaft 16a belonging to the rotation center of the second holding member support portion 16 is located below the terminal surface 22 (i.e., the side opposite to the side on which the laser light is incident on the terminal surface 22). Further, it is disposed at a position forward of the front end of the core wire 31. In this way, the second holding member support portion 16 is rotated about the rotation shaft 16a, and the second holding member 15 is indicated by a φ arrow indicated by a broken line in the figure, and when the second holding member 15 presses the core wire 31, the second holding member 15 is taken toward the paper surface. The left side is lowered to the right to the moving path on the core wire 31. Thereby, the second holding member supporting portion 16 can move the second holding member 15 to abut against the core wire 3 so as not to interfere with the protruding portion 25 provided on the terminal surface 22 of the connector 20. 1 position. By arranging the rotating shafts 14a and 16a at the positions as described above, even if the welding target is a small connector or the like, and the space on the terminal surface 22 is restricted, the first holding member 1 2 and The mechanism in which the second holding member 15 is disposed on the terminal surface 22 or the core wire 31 can be a support portion having a rotating mechanism having a good workability of -14-1352003. According to the above-described laser welding apparatus 10 according to the embodiment of the present invention, the core wire 31 is introduced into the guide portion 12a which is formed in the shape of the first holding member 12 in a plan view, and is transmitted through The second holding member 15 holds the core wire 3 1 in a state where the core wire 31 is pressed from above, and the core wire 31 can be fixed to the core wire 31 so as not to be separated from the position where the laser beam is irradiated. Thereby, it is possible to reliably perform laser welding at a position that is only a certain distance from the end portion before the core wire 31, and it is possible to suppress variations in the bonding quality of the respective core wires 31. In addition, since the first holding member 12 performs the function of shielding the light shielding cover that shields the resin portion 23 around the laser irradiation position 17 in the terminal surface 22, it is possible to prevent the resin portion 23 from being reflected or scattered by the laser light. And damage. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a laser welding apparatus according to an embodiment of the present invention. Fig. 2 is a perspective view showing a laser welding apparatus in a state in which a cable is disposed. Fig. 3 is a partial top view showing a part of a laser welding device in a state in which a cable is disposed. Fig. 4 is a partial cross-sectional view showing a part of a laser welding device in a state in which a cable is disposed. Fig. 5 is a perspective view showing a laser welding apparatus in a state in which the core of the second holding member is pressed. The sixth (a) and (b) drawings are explanatory views of the temporary pressing of the core wire by the second holding member. Fig. 7 (a) and (b) are diagrams showing the function of the hood as the first holding member. Fig. 8 is a view showing the positional relationship of the rotation axes of the first holding member supporting portion and the second holding member supporting portion -15-1352003. [Main component symbol description]
10 雷 射 熔 接 裝 置 11 連 結 器 保 持 部 12 第 1 保 持 構 件 13 第 1 保 持 構 件 連 結 部 14 第 1 保 持 構 件 支 撐 部 15 第 2 保 持 構 件 1 第 2 保 持 構 件 支 撐 部 14a' 16 旋 轉 軸 16b 雷 射 昭 射 用 開 □ 部 20 連 結 器 ( 熔 接 對 象 物） 2 1 金 屬 端 子 22 丄山 晴 子 面 23 樹 脂 部 24 外 壁 25 突 起 部 30 電 纜 3 1 心 線 -16-10 Laser welding device 11 Connector holding portion 12 First holding member 13 First holding member connecting portion 14 First holding member supporting portion 15 Second holding member 1 Second holding member supporting portion 14a' 16 Rotating shaft 16b Laser shot Injection opening part 20 Connector (welding object) 2 1 Metal terminal 22 丄山晴子面 23 Resin part 24 Outer wall 25 Projection part 30 Cable 3 1 Heart line-16-