201219122 六、發明說明： 【發明所屬之技術領域】 本發明是關於一種管加工裝置及方法，尤其是關於一 種將波浪狀褶部形成於管狀構件的管加工裝置及方法。 【先前技術】 以往，將原材管（管狀構件）予以加工，進行製造波紋 管等，具有波浪狀褶部的成形管時，使用著金屬模。 例如，在專利文獻1，記載著在原材管之軸方向配置 複數金屬模，將原材管內予以加壓，並使各金屬模之間的 間隔縮小，藉此來成形波紋的情形。對照金屬模之氣孔空 間的形狀使原材管鼓出，使波紋被成形。 專利文獻1 :日本特開2003-202077號公報 【發明內容】. 然而，在上述以往的情形中，因應於波紋之形狀（節 距或螺紋山之高度）的金屬模成爲必需之故，因而必須準 備多數的金屬模。又，每當欲成形不相同的形狀的波紋， 必須更換金屬模。所以，有波紋管的製造成本變高的問題 e 本發明是提供一種不必使用金屬模，可製造波紋管等 ，具有波浪狀褶部的成形管的管加工裝置及方法’作爲目 的。 本發明的一種管加工裝置，是使管狀構件變形並形成 -5- 201219122 波浪狀之褶部的管加工裝置，其特徵爲：具備：加熱手段 、及第1及第2保持手段、及支承手段、以及壓縮力施加 手段’該加熱手段，是將上述管狀構件的加熱部予以加熱 ’該第1及第2保持手段，是在軸方向將上述加熱部夾在 其間之方式，在第1及第2保持位置將上述管狀構件予以 分別保持，該支承手段，是在上述第1及第2保持位置之 間，與上述管狀構件相抵接，並支承上述管狀構件，該壓 縮力施加手段，是使上述第1及第2保持位置之間的距離 縮短，來對位於上述第1及第2保持位置之間的上述管狀 構件施加朝向軸方向的壓縮力。 依照本發明的管加工裝置，加熱部是利用加熱手段被 加熱並成爲容易變形，惟加熱部以外的管狀構件是未被加 熱之故，因而很難變形。所以，當對於第1及第2保持位 置之間之管狀構件利用壓縮力施加手段朝向軸方向施加壓 縮力，則僅在加熱部發生變形。因此，成爲在加熱部可形 成波浪狀之褶部。 又，因蟫於管狀構件之材料、形狀（內徑、管厚等）、 加熱部之溫度、壓縮力施加手段所縮短之距離、加熱部之 寬度等的參數，使褶部之形狀有所變化。因此，利用適當 地設定此些參數，成爲可形成具有所期望的形狀的褶部。 又，利用依次地移動加熱部，可連續地形成褶部。 利用以上，不必使用金屬模，就可製造波紋管等，具 有波浪狀褶部的成形管。又’不使用金屬模之故’因而成 爲可刪減具有波浪狀褶部的成形管的製造成本。 -6 - 201219122 又，支承手段，是在第1及第2保持位置之間，與管 狀構件相抵接，並支承管狀構件。所以，使管狀構件的支 承跨距被縮短。因此，在壓縮力施加手段有施加壓縮力時 ，成爲可減低在第1及第2保持位置之間的管狀構件上發 生不期望的壓曲變形之虞。 又，上述支承手段，是被插入於上述管狀構件的內側 ，並抵接於該管狀構件之內周面的插入體也可以。又，上 述支承手段，是抵接於上述管狀構件之外周面的外周面抵 接體也可以。 本發明的管加工裝置中，具備：將上述管狀構件的內 部予以加壓的加壓手段較佳。 這時候，藉由使用加壓手段進行加壓管狀構件的內部 ，成爲可更容易地形成波浪狀之褶部。又，因應於管狀構 件的內壓使褶部之形狀有變化之故，因而利用適當地設定 內壓，成爲可更容易地形成具有所期望的形狀的褶部。 本發明的一種管加工方法，是使管狀構件變形並形成 波浪狀之褶部的管加工方法，其特徵爲：在軸方向將利用 加熱手段所加熱的加熱部夾在其間之方式，在第1及第2 保持位置將上述管狀構件予以分別保持，而且在上述第1 及第2保持位置之間，將支承手段抵接於上述管狀構件， 並支承上述管狀構件，一面利用上述加熱手段使上述加熱 部加熱，一面使上述第1及第2保持位置之間的距離縮短 ，來對位於上述第1及第2保持位置之間的上述管狀構件 施加朝向軸方向的壓縮力。 201219122 依照本發明的管加工方法’加熱部是被加熱而成爲容 易變形，惟加熱部以外的管狀構件是未被加熱之故’因而 很難變形。所以，當對位於第1及第2保持位置之間的管 狀構件朝向軸方向施加壓縮力’則僅在加熱部發生變形。 因此，成爲在加熱部可形成波浪狀之褶部。 又，因應於管狀構件之材料、形狀（內徑、管厚等）、 加熱部之溫度、所縮短之距離、加熱部之寬度等的參數， 使褶部之形狀有所變化。因此，利用適當地設定此些參數 ，成爲可形成具有所期望之形狀的褶部。又，利用依次地 移動加熱部，可連續地形成褶部。 利用以上，不必使用金屬模，就可製造波紋管等，具 有波浪狀褶部的成形管。又，不使用金屬模之故，因而成 爲可刪減具有波浪狀褶部的成形管的製造成本。 又，支承手段是在第1及第2保持位置之間，與管狀 構件相抵接，並支承管狀構件。所以，使管狀構件的支承 跨距被縮短。因此，有施加壓縮力時，成爲可減低在第1 及第2保持位置之間的管狀構件上發生不期望的壓曲變形 之虞。 【實施方式】 [第1實施形態] 針對於本發明的第1實施形態的管加工裝置1 0加以 說明。 參照第1圖，管加工裝置10，是使管P變形並形成 -8- 201219122 所期望的波浪狀褶部（環狀凹凸），並得到波紋管（蛇腹管） 等的成形管的裝置。 若管p是使用作爲一般性的波紋管等的成形管的原材 管的管，其形狀（內徑、管厚等）或是材質並未特別地加以 限定。管P的材質是例如不鏽鋼、銅 '鋁等的金屬或是樹 脂。又，管P的形狀並不被限定於圓筒狀，而是方筒狀等 也可以。又，管P是未予以圖示，惟由送料機所送出，並 被捲裝於捲裝機的長片也可以。管P是相當於本發明的管 狀構件。 管加工裝置10，是具備：第1夾頭11，第2夾頭12 ，心軸13，加熱盤管14，第1搬運機構15，第2搬運機 構16，以及控制單元17。 第1夾頭11及第2夾頭12，是在管P的軸方向以下 述的加熱部S夾在其間之方式，以第1及第2保持位置 HI、H2分別保持管P者，相當於本發明的第1及第2保 持手段。在加工中，管P不會從保持位置H1、‘H2偏離之 方式，夾頭11、12,是以適當的保持力保持管P之外周 面。 心軸1 3，是在保持位置Η 1、H2之間與管P相抵接， 並支承管Ρ者，相當於本發明的支承手段及插入體。心軸 13是由不鏽鋼，鋁等的金屬或是硬質樹脂等所構成的圓棒 形狀，其直徑是與管Ρ之內徑同等。 在此，心軸13，是事先被插入在管Ρ之內側。心軸 13，是從管Ρ之最初加工的部分（最初的加熱部S)延伸至 201219122 第1保持位置HI全面。但是，心軸13的插入方法並不被 限定於此，在保持位置Η 1、H2端部之間至少存在著心軸 13就可以。例如，將心軸13從第2保持位置Η2側插入 在管Ρ之內側，並從管Ρ之最後加工的部分（最後的加熱 部S)延伸至第2保持位置Η2全面也可以》 加熱盤管14，是使加熱部S加熱者，相當於本發明 的加熱手段。換言之，加熱部S，是利用加熱盤管14被 加熱至目標溫度的距管Ρ之軸方向短的環狀部分。 加熱盤管14,是被配置成周方向地包圍加熱部S。當 從交流電源、振盪電路、變壓器等所構成的高頻電流產生 裝置1 8供應著高頻電流，則加熱盤管1 4是利用高頻加熱 全周面地將加熱部S均勻地加熱。 又，代替加熱盤管14,使用環狀的加熱器，在加熱器 上供應電流，並利用通電加熱，將加熱部S予以加熱也可 以。代替加熱盤管14，在加熱部S之周圍均等地配置雷 射加熱裝置，利用雷射加熱，將加熱部S予以加熱也可以 〇 又，鄰接於加熱盤管14，設置冷卻盤管19較佳》冷 卻盤管19是從冷媒供應裝置20供應著水、油等的流體冷 媒，來防止依加熱盤管1 4所成之加熱，使鄰接於加熱部 S的部分被加熱的情形。藉由此’僅加熱部S成爲局部性 地被加熱。加熱部S之寬度是因應於加熱盤管14之盤管 寬度及加熱盤管14與冷卻盤管19之隔間距離等定出。 又，鄰接於加熱部S配置有溫度感測器21。溫度感 -10- 201219122 測器2 1是非接觸型之溫度感測器，檢測出加熱部S之溫 度。 第1搬運機構15，是藉由使第1夾頭11移動，俾將 第1保持位置H1的管P以搬運速度VI朝向加熱部s搬 運（送出）至第1圖的右方向。第1保持位置H1是成爲比 加熱部S還位於搬運方向上游側。 第1搬運機構15,是具備：被固定於第1夾頭11的 滾珠螺帽部22，及經由滾珠螺帽部22與複數滾珠23進行 嚙合的滾珠螺軸24，及被連接於滾珠螺軸24，並使滾珠 螺軸24旋轉的伺服馬達25。滾珠螺帽部22是被引導至直 線運動引導機構的導件27。 當經由電動驅動器26使伺服馬達25旋轉驅動時，則 使滾珠螺軸24旋轉，並使滾珠螺帽部22被引導至導件27 進行直線動作。藉由此，第1夾頭1 1以第1搬運速度V1 移動至第1圖的右方向。 第2搬運機構16，是藉由使第2夾頭12移動，俾將 第2保持位置H2的管P以搬運速度V2從加熱部S遠離 的方式搬運（抽出）至第1圖的右方向。第2保持位置H2, 是成爲比加熱部S還位於搬運方向下游側。 第2搬運機構16’是具備：被固定於第2夾頭12的 滾珠螺帽部28’及經由滾珠螺帽部28與複數滾珠29進行 嚙合的滾珠螺軸30，及被連接於滾珠螺軸30，並使滾珠 螺軸30旋轉的伺服馬達31。滾珠螺帽部28，是被引導至 直線運動引導機構的導件27。 -11 - 201219122 當經由電動驅動器3 2使伺服馬達3 1旋轉驅動時，則 使滾珠螺軸30旋轉，並使滾珠螺帽部28被引導至導件27 進行直線動作。藉由此，第2夾頭12以第2搬運速度V2 移動至第1圖的右方向。 藉由搬運速度之相差Δν( = νΐ-ν2)，縮短保持位置H1 、Η2之間的距離，對於位在其間之管ρ朝向軸方向施加 壓縮力。搬運機構15、16是相當於本發明的壓縮力施加 手段。 又，作爲搬運機構15、16，使用油壓氣缸也可以。這 時候，在油壓氣缸之活塞安裝有夾頭Π、12。 又，管加工裝置10，是具備：使管Ρ的內部加壓的 加壓機構3 5。加壓機構3 5，是相當於本發明的加壓手段 〇 加壓機構35，是藉由未予圖示之公知手段在兩端被密 閉的管Ρ的內部塡充高壓的流體，藉此，提高管Ρ的內壓 。又，作爲流體，例如可使用氮或是氬等的惰性氣體、空 氣、油等。加壓機構35，是因應於管Ρ的材質、內徑、 管厚、加熱部S的溫度、寬度等，將管Ρ的內壓從數氣壓 提高至數十氣壓程度。 控制單元1 7，是由CPU、ROM、RAM、I/O等所構成 ，經由電動驅動器26、32並被連接於伺服馬達25、31 » 在各伺服馬達25、3 1配設有用以檢測出各該伺服馬達25 、31之旋轉數的編碼器33、34。 在控制單元17的記億部，存儲著管P的材質或形狀 -12- 201219122 ，對應於因應在須形成的褶部之形狀等的搬運速度 V2的伺服馬達25、31之旋轉數。控制單元17，是參 旋轉數，並因應於來自編碼器33、34的檢測信號， 制信號發送至電動驅動器26、32，來控制伺服馬達 3 1 〇 又，控制單元17，是也被連接於高頻電流產生 1 8，及溫度感測器2 1。在控制單元1 7的記憶部，存 管P的材質或形狀，因應於須形成的褶部之形狀等之 部s的目標溫度。目標溫度，是至少超過管P之軟化 的溫度。 控制單元17，是參照此目標溫度，因應於來自溫 測器21的檢測信號，將控制信號發送至高頻電流產 置1 8，並利用來控制被供應於加熱盤管1 4的高頻電 ，來調整加熱部S的溫度。又，在控制單元17也連 媒供應裝置20及加壓機構35。 以下，針對於使用管加工裝置10的本發明的第 施形態的管加工方法加以說明。 首先，將管P之加熱部S夾在保持位置H1、H2 的方式，使用夾頭11、12進行保持管P的保持工序 時候，在管P之內側，事先插入心軸13。又，也可 心軸13插入於：使用夾頭11、12並加以保持之管P 側。 .之後，進行使加熱部S加熱的加熱工序。又，加 序以後的工序，是利用未予圖示之啓動按鈕的按壓， VI、 照此 將控 25、 裝置 儲著 加熱 溫度 度感 生裝 流値 接冷 1實 之間 。這 以將 的內 熱工 而藉 -13- 201219122 由控制單元1 7被實行。 在加熱工序中，高頻電流從高頻電流產生裝置 供應於加熱盤管14，藉由依加熱盤管14所成的高 ，使加熱部S全周面地均勻地被加熱至目標溫度。 面，鄰接於加熱部S之部分，是利用冷卻盤管19 至至少不足軟化溫度。 又，進行搬運管P的搬運工序。具體而言，使 搬運機構15並經由第1夾頭11，以搬運速度VI 第1保持位置H1的管P，又使用第2搬運機構16 第2夾頭12，以搬運速度V2來搬運第2保持位置 管P。這時候，心軸13是與管P —起被搬運。又 工序與搬運工序是同時地進行，而加熱部S是以一 運速度V2朝向搬運方向移動。 藉由搬運速度之相差Δ V( = V1-V2)，縮短保持位 、H2之間的距離，對於位於其間之管P朝向軸方 加很大的壓縮力。這時候，在心軸1 3朝向軸方向 加壓縮力。在此，加熱部S是超過軟化溫度被加熱 爲容易地變形。另一方面，加熱部S以外之管P的 不足軟化溫度而不容易變形。所以，僅在加熱部S 形。 由依管P的斷面形狀所成之特性，變形是朝向 外方鼓出之方式容易發生。又，在加熱部S之內側 心軸13,朝向徑方向內方鼓出之方式妨礙著變形。 在加熱部S發生朝向徑方向外方鼓出之方式產生變无 18被 頻加熱 另一方 被冷卻 用第1 來搬運 並經由 H2的 ，加熱 定的搬 :置H1 向被施 並未施 ，而成 溫度是 發生變 徑方向 插入有 因此， -14 - 201219122 又，以一定搬運速度V2抽出管P之故，因而也以一 定搬運速度V2移動加熱部S。結果，在管P，成爲波浪狀 褶部連續被形成的情形。 又，褶部之節距及高度，是因應於管P之材料、形狀 (內徑、管厚等）、加熱部S之溫度、搬運速度VI、V2、 加熱部S之寬度、管P之內壓等的參數有所變化。但是， 若參數爲同一，褶部的形狀是成爲同一之故，因而藉由將 加熱部S之溫度及搬運速度VI、V2維持在一定，成爲可 形成連續有同一形狀的褶部之管，例如，成爲可形成波紋 管。 當在搬運工序有軸方向的壓縮力施加於管P時，利用 重力之影響等使保持位置H1、H2之間的管P的軸線未被 維持在一直線上，而在管P會發生不期望的壓曲變形之虞 。但是，藉由插入於內側的心軸1 3支承著管P。所以， 管P的支承跨距，是成爲心軸13之前端與保持位置H2之 端面之間的距離，而與未插入心軸1 3之情形相比較會被 縮短。藉由此，成爲可減低在搬運工序有不期望的壓曲變 形發生在管p之虞的情形。 [第2實施形態] 針對於本發明的第2實施形態的管加工裝置50加以 說明。 參照第2圖，管加工裝置50是與上述的管加工裝置 1 0相類似之故，因而僅針對於不相同部分加以說明。 -15- 201219122 管加工.裝置50,是作爲相當於本發明的支承手段者， 代替管加工裝置10的心軸13，具備滾子51(51a及51b)、 52(52a及5 2b)。滾子51、52，是在第1及第2保持位置 HI、H2之間與管P之外周面分別相抵接，而支承著管P ，相當於本發明的外周面抵接體。 滾子51、52是不鏽鋼、鋁等的金屬或是硬質樹脂等 所構成的桶形狀，旋轉自如地被軸支著。又，滾子51、52 是利用未予圖示之彈性機構，使其外周面被抵接於管P的 外周面。 滾子51a、51b，是在第1保持位置H1之端部與加熱 部S之間，從上下方向抵接於管P之外周面。滾子52a、 5 2b，是在第2保持位置H2之端部與加熱部S之間，從上 下方向抵接於管P之外周面》 藉由此，管P的支承跨距，是成爲與滾子51、52之 抵接部位之間的距離，而與未將滾子51、52抵接於管P 之情形相比較會被縮短。藉由此，成爲可減低在搬運工序 有不期望的壓曲變形發生在管P之虞的情形。又，省略滾 子51、52之任一方也可以。 使用管加工裝置50的管加工方法，是與使用上述的 管加工裝置10的管加工方法同樣之故，因而省略了其說 明。 以上，針對於本發明的實施形態參照圖式加以說明， 惟本發明並不被限定於此。例如，針對於管加工裝置1 0、 50是具備加壓機構35的情形加以說明。但是，加壓機構 -16- 201219122 3 5是被省略也可以。 又，針對於在管加工裝置10、50中，水平地搬運管 P的情形加以說明。但是，垂直或傾斜地搬運管p的情形 也可以。 又，垂直地搬運管P時，則在搬運工序的壓縮力之作 用方向與重力之作用方向成爲同一方向。因此，有軸方向 的壓縮力施加於管P時，則保持位置HI、H2之間的管P 的軸線不被維持在一直線上，而不期望的壓曲變形發生在 管P之虞被減低。但是，仍然管P之支承跨距較長，則有 不期望的壓曲變形發生在管P之虞。因此，使用心軸13 或是滾子5 1、52，並使支承跨距縮短化的情形成爲必需。 又，作爲本發明的管加工方法，針對於藉由以一定搬 運速度VI、V2進行搬運管P，並將一定的壓縮力連續地 施加於管P之軸方向，連續地形成褶部的情形加以說明。 但是，並不被限定於此，在保持位置HI、H2之間的管P 施加軸方向的壓縮力，並將波浪狀褶部形成在加熱部S者 就可以。 例如，在停止第1保持位置Η1之狀態下，藉由使用 第2搬運機構16朝向第1圖或是第2圖之左方向移動第2 夾頭12並塞進管Ρ，在保持位置HI、Η2之間的管Ρ施加 軸方向的壓縮力，·並在加熱部S形成褶部也可以。又，之 後，藉由使用第1及第2搬運機構15、16而以同一速度 移動第1夾頭11及第2夾頭12，使加熱部S之位置予以 變更，就可以連續地或是離散地形成褶部。 -17- 201219122 如此地，管加工裝置1 0、5 0，是藉由以控制單元17 來控制搬運速度VI、V2、加熱部S的溫度及管P的內壓 等，就可將褶部依次地形成在管P，而使加工自由度極高 【圖式簡單說明】 第1圖是表示本發明的第1實施形態的管加工裝置的 槪念圖。 第2圖是表示本發明的第2實施形態的管加工裝置的 槪念圖。 【主要元件符號說明】 10，50:管加工裝置 11 :第1夾頭 12 :第2夾頭 1 3 :心軸 1 4 :加熱盤管 15 :第1搬運機構 16 :第2搬運機構 1 7 :控制單元 18:高頻電流產生裝置 19 :冷卻盤管 20 :冷媒供應裝置 21 :溫度感測器 -18- 201219122 22， 23， 2 4， 25， 26， 27 ： 33， 35 ： P ： S ： 51 ， 2 8 :滾珠螺帽部 29 :複數滾珠 30 :滾珠螺軸 3 1 :伺服馬達 3 2 :電動驅動器 導件 34 :編碼器 加壓機構 管 加熱部 52 :滾子 -19-201219122 SUMMARY OF THE INVENTION [Technical Field] The present invention relates to a tube processing apparatus and method, and more particularly to a tube processing apparatus and method for forming a wavy pleat in a tubular member. [Prior Art] Conventionally, when a raw material pipe (tubular member) is processed to produce a bellows or the like, and a formed pipe having a wavy pleat portion is used, a metal mold is used. For example, Patent Document 1 discloses that a plurality of metal molds are disposed in the axial direction of the raw material tube, and the inside of the raw material tube is pressurized, and the interval between the respective metal molds is reduced to form a corrugated shape. The shape of the pore space of the metal mold is made to bulge the raw material tube so that the corrugations are formed. [Patent Document 1] Japanese Laid-Open Patent Publication No. 2003-202077. SUMMARY OF THE INVENTION However, in the above-described conventional case, it is necessary to apply a mold to the shape of the corrugation (pitch or the height of the threaded mountain). Prepare most metal molds. Also, whenever a corrugation of a different shape is to be formed, the metal mold must be replaced. Therefore, there is a problem that the manufacturing cost of the bellows becomes high. The present invention provides a tube processing apparatus and method for manufacturing a bellows or the like having a corrugated pleat without using a metal mold. A tube processing apparatus according to the present invention is a tube processing apparatus which deforms a tubular member to form a wavy pleat of -5 to 201219122, and is characterized in that: the heating means, the first and second holding means, and the supporting means are provided And a compressive force applying means 'the heating means is for heating the heating portion of the tubular member'. The first and second holding means are for sandwiching the heating portion in the axial direction, and the first and the second (2) holding the tubular member separately between the first and second holding positions, and supporting the tubular member between the first and second holding positions, wherein the compressive force applying means is The distance between the first and second holding positions is shortened, and a compressive force in the axial direction is applied to the tubular member located between the first and second holding positions. According to the pipe processing apparatus of the present invention, the heating portion is heated by the heating means and is easily deformed, but the tubular member other than the heating portion is not heated, so that it is difficult to be deformed. Therefore, when the tubular member between the first and second holding positions is pressed by the compressive force applying means toward the axial direction, the heating portion is deformed only. Therefore, a wavy pleat portion can be formed in the heating portion. Further, the shape of the pleats is changed by parameters such as the material, shape (inner diameter, tube thickness, and the like) of the tubular member, the temperature of the heating portion, the distance shortened by the compressive force applying means, and the width of the heating portion. . Therefore, by appropriately setting such parameters, it is possible to form a pleat having a desired shape. Further, the pleats can be continuously formed by sequentially moving the heating portions. With the above, it is possible to manufacture a bellows or the like, a formed tube having a wavy pleat, without using a metal mold. Further, the fact that the metal mold is not used is such that the manufacturing cost of the formed tube having the wavy pleats can be eliminated. -6 - 201219122 Further, the supporting means abuts the tubular member between the first and second holding positions, and supports the tubular member. Therefore, the support span of the tubular member is shortened. Therefore, when the compressive force applying means applies a compressive force, it is possible to reduce the occurrence of undesired buckling deformation on the tubular member between the first and second holding positions. Further, the support means may be an insert body that is inserted into the inner side of the tubular member and that abuts against the inner peripheral surface of the tubular member. Further, the support means may be an outer peripheral surface abutting body that abuts against the outer peripheral surface of the tubular member. In the tube processing apparatus of the present invention, it is preferable that the pressurizing means for pressurizing the inner portion of the tubular member is provided. At this time, by pressing the inside of the tubular member by the pressurizing means, the wavy pleats can be formed more easily. Further, since the shape of the pleats is changed in accordance with the internal pressure of the tubular member, it is possible to more easily form the pleats having the desired shape by appropriately setting the internal pressure. A pipe processing method according to the present invention is a pipe processing method for deforming a tubular member to form a wavy pleat portion, characterized in that a heating portion heated by a heating means is sandwiched therebetween in the axial direction. And the second holding position holding the tubular members separately, and the supporting means abuts the tubular member between the first and second holding positions, and supports the tubular member, and the heating is performed by the heating means When the portion is heated, the distance between the first and second holding positions is shortened, and a compressive force in the axial direction is applied to the tubular member located between the first and second holding positions. 201219122 According to the pipe processing method of the present invention, the heating portion is heated to be easily deformed, but the tubular member other than the heating portion is not heated, and thus it is difficult to deform. Therefore, when the tubular member located between the first and second holding positions is applied with a compressive force toward the axial direction, the heating portion is deformed only. Therefore, a wavy pleat portion can be formed in the heating portion. Further, the shape of the pleats is changed depending on parameters such as the material, shape (inner diameter, tube thickness, and the like) of the tubular member, the temperature of the heating portion, the shortened distance, and the width of the heating portion. Therefore, by appropriately setting such parameters, it is possible to form a pleat having a desired shape. Further, the pleats can be continuously formed by sequentially moving the heating portion. With the above, it is possible to manufacture a bellows or the like, a formed tube having a wavy pleat, without using a metal mold. Further, since the metal mold is not used, the manufacturing cost of the formed tube having the wavy pleats can be eliminated. Further, the supporting means abuts against the tubular member between the first and second holding positions, and supports the tubular member. Therefore, the support span of the tubular member is shortened. Therefore, when a compressive force is applied, it is possible to reduce the occurrence of undesired buckling deformation on the tubular member between the first and second holding positions. [Embodiment] [First Embodiment] A pipe processing device 10 according to a first embodiment of the present invention will be described. Referring to Fig. 1, the tube processing apparatus 10 is a device for deforming the tube P to form a corrugated pleat (annular concavity and convexity) desired by -8 to 201219122, and obtaining a formed tube such as a bellows (snake tube). The tube p is a tube using a raw material tube which is a generalized bellows or the like, and its shape (inner diameter, tube thickness, etc.) or material is not particularly limited. The material of the tube P is, for example, a metal such as stainless steel or copper 'aluminum or a resin. Further, the shape of the tube P is not limited to a cylindrical shape, but may be a square tube shape or the like. Further, the pipe P may be a long piece which is not shown but is fed by a feeder and is wound up in a package. The tube P is a tubular member corresponding to the present invention. The tube processing apparatus 10 includes a first chuck 11, a second chuck 12, a mandrel 13, a heating coil 14, a first transport mechanism 15, a second transport mechanism 16, and a control unit 17. The first chuck 11 and the second chuck 12 are such that the tube P is held between the first and second holding positions HI and H2 in the axial direction of the tube P by the following heating unit S. The first and second holding means of the present invention. During the processing, the tube P does not deviate from the holding positions H1, 'H2, and the chucks 11, 12 hold the outer surface of the tube P with an appropriate holding force. The mandrel 13 is a support means and an insert of the present invention, which are in contact with the pipe P between the holding positions Η 1 and H2 and support the pipe. The mandrel 13 is a rod shape composed of a metal such as stainless steel or aluminum or a hard resin, and has a diameter equal to the inner diameter of the tube. Here, the mandrel 13 is inserted into the inside of the tube in advance. The mandrel 13 extends from the originally processed portion (the first heating portion S) to the 201219122 first holding position HI. However, the insertion method of the mandrel 13 is not limited thereto, and at least the mandrel 13 may exist between the ends of the holding positions Η 1 and H2. For example, the mandrel 13 is inserted into the inside of the tube from the second holding position Η2 side, and extends from the last processed portion (the last heating portion S) of the tube to the second holding position Η2. 14. The heating means S is heated, and corresponds to the heating means of the present invention. In other words, the heating portion S is an annular portion which is heated to a target temperature by the heating coil 14 and which is shorter than the axial direction of the tube. The heating coil 14 is disposed to surround the heating portion S in the circumferential direction. When the high-frequency current is supplied from the high-frequency current generating device 18 composed of an AC power source, an oscillation circuit, a transformer, etc., the heating coil 14 heats the heating portion S uniformly over the entire circumference by high-frequency heating. Further, instead of the heating coil 14, an annular heater is used, an electric current is supplied to the heater, and the heating portion S may be heated by electric heating. Instead of the heating coil 14, a laser heating device is uniformly disposed around the heating portion S, and the heating portion S may be heated by laser heating, and may be adjacent to the heating coil 14, and the cooling coil 19 is preferably provided. The cooling coil 19 supplies a fluid refrigerant such as water or oil from the refrigerant supply device 20 to prevent heating by the heating coil 14 and to heat the portion adjacent to the heating portion S. By this, only the heating portion S is locally heated. The width of the heating portion S is determined in accordance with the width of the coil of the heating coil 14 and the distance between the heating coil 14 and the cooling coil 19. Further, the temperature sensor 21 is disposed adjacent to the heating unit S. Temperature Sense -10- 201219122 Detector 2 1 is a non-contact type temperature sensor that detects the temperature of the heating unit S. In the first transport mechanism 15, by moving the first chuck 11, the tube P of the first holding position H1 is transported (sent) to the heating unit s at the transport speed VI to the right direction of the first drawing. The first holding position H1 is located on the upstream side in the conveyance direction from the heating unit S. The first transport mechanism 15 includes a ball nut portion 22 that is fixed to the first chuck 11 , a ball screw shaft 24 that meshes with the plurality of balls 23 via the ball nut portion 22 , and a ball screw shaft that is coupled to the ball screw shaft. 24, a servo motor 25 that rotates the ball screw shaft 24. The ball nut portion 22 is a guide 27 that is guided to the linear motion guiding mechanism. When the servo motor 25 is rotationally driven via the electric actuator 26, the ball screw 24 is rotated, and the ball nut portion 22 is guided to the guide 27 to perform a linear motion. Thereby, the first chuck 1 1 moves to the right direction of the first drawing at the first conveyance speed V1. By moving the second chuck 12, the second transport mechanism 16 transports (extracts) the tube P of the second holding position H2 away from the heating unit S so as to be away from the heating unit S to the right direction of the first drawing. The second holding position H2 is located on the downstream side of the heating unit S in the conveyance direction. The second transport mechanism 16 ′ includes a ball nut portion 28 ′ that is fixed to the second chuck 12 , a ball screw shaft 30 that meshes with the plurality of balls 29 via the ball nut portion 28 , and a ball screw shaft that is coupled to the ball screw shaft. 30. A servo motor 31 that rotates the ball screw shaft 30. The ball nut portion 28 is a guide 27 that is guided to the linear motion guiding mechanism. -11 - 201219122 When the servo motor 31 is rotationally driven via the electric actuator 3 2, the ball screw shaft 30 is rotated, and the ball nut portion 28 is guided to the guide 27 to perform a linear operation. Thereby, the second chuck 12 is moved to the right direction of the first drawing at the second conveyance speed V2. By the phase difference Δν (= ν ΐ - ν2) of the conveyance speed, the distance between the holding positions H1 and Η 2 is shortened, and a compressive force is applied to the tube ρ in the direction of the axial direction. The transport mechanisms 15 and 16 are compression force applying means corresponding to the present invention. Further, as the transport mechanisms 15 and 16, a hydraulic cylinder may be used. At this time, the collet Π, 12 is mounted on the piston of the hydraulic cylinder. Further, the tube processing apparatus 10 is provided with a pressurizing mechanism 35 for pressurizing the inside of the tube. The pressurizing mechanism 35 is a pressurizing means 〇 pressurizing mechanism 35 according to the present invention, and is a high-pressure fluid that is filled in the inside of the tube that is sealed at both ends by a known means (not shown). Increase the internal pressure of the tube. Further, as the fluid, for example, an inert gas such as nitrogen or argon, air, oil or the like can be used. The pressurizing mechanism 35 increases the internal pressure of the tube from several air pressures to several tens of degrees of pressure depending on the material of the tube, the inner diameter, the tube thickness, the temperature and the width of the heating portion S, and the like. The control unit 17 is constituted by a CPU, a ROM, a RAM, an I/O, etc., and is connected to the servo motors 25 and 31 via the electric drives 26 and 32. The servo motors 25 and 31 are disposed to detect Encoders 33 and 34 of the number of rotations of the servo motors 25 and 31. In the unit of the control unit 17, the material or shape of the pipe P is stored -12-201219122, and the number of rotations of the servo motors 25 and 31 corresponding to the conveyance speed V2 such as the shape of the pleat to be formed is stored. The control unit 17 is a reference rotation number, and is sent to the electric drives 26, 32 in response to the detection signals from the encoders 33, 34 to control the servo motor 3 1 . The control unit 17 is also connected to The high frequency current is generated 18 and the temperature sensor 2 1 . In the memory portion of the control unit 17, the material or shape of the tube P is determined in accordance with the target temperature of the portion s such as the shape of the pleat portion to be formed. The target temperature is a temperature at least exceeding the softening of the tube P. The control unit 17 refers to the target temperature, and transmits a control signal to the high-frequency current generating unit 18 in response to the detection signal from the temperature detector 21, and controls the high-frequency power supplied to the heating coil 14 To adjust the temperature of the heating portion S. Further, the control unit 17 also supplies the medium supply device 20 and the pressurizing mechanism 35. Hereinafter, a tube processing method according to the first embodiment of the present invention using the tube processing apparatus 10 will be described. First, the holding portion P is held by the chucks 11 and 12 so that the heating portion S of the tube P is sandwiched between the holding positions H1 and H2, and the mandrel 13 is inserted into the inside of the tube P in advance. Further, the mandrel 13 may be inserted into the side of the tube P which is held by the chucks 11, 12. After that, a heating step of heating the heating portion S is performed. Further, the step after the sorting is performed by pressing the start button (not shown), and the control unit 25 and the device store the heating temperature sense between the raw material and the flow. This is carried out by the control unit 17 by means of the internal thermal work -13 - 201219122. In the heating step, the high-frequency current is supplied from the high-frequency current generating means to the heating coil 14, and the heating portion S is uniformly heated to the target temperature over the entire circumference by the height of the heating coil 14. The surface, adjacent to the portion of the heating portion S, utilizes the cooling coil 19 to at least an insufficient softening temperature. Moreover, the conveyance process of the conveyance pipe P is performed. Specifically, the transport mechanism 15 is transported by the first chuck 11 to the tube P at the first holding position H1 of the transport speed VI, and the second chuck 12 is used by the second transport mechanism 16 to transport the second transport at the transport speed V2. Hold the position tube P. At this time, the mandrel 13 is carried along with the pipe P. Further, the step and the transporting step are simultaneously performed, and the heating portion S is moved toward the transport direction at the transport speed V2. By the phase difference ΔV (= V1 - V2) of the conveyance speed, the distance between the holding position and H2 is shortened, and a large compressive force is applied to the tube P located therebetween. At this time, a compressive force is applied to the mandrel 13 toward the axial direction. Here, the heating portion S is heated to be easily deformed beyond the softening temperature. On the other hand, the tube P other than the heating portion S has an insufficient softening temperature and is not easily deformed. Therefore, it is only in the shape of the heating portion S. Depending on the characteristics of the cross-sectional shape of the tube P, the deformation is likely to occur toward the outside. Further, the inner side of the heating portion S, the mandrel 13 bulges inward in the radial direction, and the deformation is hindered. When the heating unit S is bulged outward in the radial direction, the heating is performed. The other one is transported by the first one and is transported via H2. The heating is fixed. Since the temperature is inserted in the direction of the change in diameter, -14 - 201219122, the tube P is taken out at a constant transport speed V2, and therefore the heating unit S is also moved at a constant transport speed V2. As a result, in the tube P, the wavy pleats are continuously formed. Further, the pitch and height of the pleats are determined by the material, shape (inner diameter, tube thickness, and the like) of the tube P, the temperature of the heating portion S, the conveying speed VI, V2, the width of the heating portion S, and the inside of the tube P. The parameters such as pressure have changed. However, if the parameters are the same and the shape of the pleats is the same, the temperature of the heating unit S and the conveying speeds VI and V2 are maintained constant, so that a tube having the same shape of the pleats can be formed, for example. It becomes a bellows. When a compressive force in the axial direction is applied to the tube P in the transporting step, the axis of the tube P between the holding positions H1 and H2 is not maintained in a straight line by the influence of gravity or the like, and an undesired occurrence occurs in the tube P. The buckling deformation. However, the tube P is supported by the mandrel 13 inserted inside. Therefore, the support span of the pipe P is the distance between the front end of the mandrel 13 and the end face of the holding position H2, and is shortened as compared with the case where the mandrel 13 is not inserted. As a result, it is possible to reduce the occurrence of undesired buckling deformation in the conveying process after the tube p. [Second Embodiment] A pipe processing device 50 according to a second embodiment of the present invention will be described. Referring to Fig. 2, the tube processing apparatus 50 is similar to the tube processing apparatus 10 described above, and therefore only the different portions will be described. -15-201219122 Tube processing. The apparatus 50 is a supporter according to the present invention, and includes a roller 51 (51a and 51b) and 52 (52a and 52b) instead of the mandrel 13 of the tube processing apparatus 10. The rollers 51 and 52 are respectively in contact with the outer peripheral surface of the tube P between the first and second holding positions HI and H2, and support the tube P, and correspond to the outer peripheral surface abutting body of the present invention. The rollers 51 and 52 are in the shape of a barrel made of a metal such as stainless steel or aluminum or a hard resin, and are rotatably supported by the shaft. Further, the rollers 51 and 52 are made of an elastic mechanism (not shown) so that the outer peripheral surface thereof abuts against the outer peripheral surface of the pipe P. The rollers 51a and 51b are in contact with the outer surface of the tube P from the vertical direction between the end portion of the first holding position H1 and the heating portion S. The rollers 52a and 52b are in contact with the outer surface of the tube P from the upper end portion of the second holding position H2 and the heating portion S, whereby the support span of the tube P is The distance between the abutting portions of the rollers 51 and 52 is shortened as compared with the case where the rollers 51 and 52 are not in contact with the tube P. As a result, it is possible to reduce the occurrence of undesired buckling deformation in the conveyance process after the pipe P is generated. Further, either one of the rollers 51 and 52 may be omitted. The tube processing method using the tube processing apparatus 50 is the same as the tube processing method using the tube processing apparatus 10 described above, and thus the description thereof is omitted. The embodiments of the present invention have been described above with reference to the drawings, but the present invention is not limited thereto. For example, a case where the tube processing apparatuses 10 and 50 are provided with the pressurizing mechanism 35 will be described. However, the pressurization mechanism -16 - 201219122 3 5 may be omitted. Further, a case where the tube P is horizontally conveyed in the tube processing apparatuses 10 and 50 will be described. However, it is also possible to carry the tube p vertically or obliquely. Further, when the pipe P is vertically conveyed, the direction in which the compressive force acts in the transporting step and the direction in which gravity acts are the same. Therefore, when a compressive force in the axial direction is applied to the tube P, the axis of the tube P between the holding positions HI, H2 is not maintained on the straight line, and the undesired buckling deformation occurs after the tube P is lowered. However, even if the support span of the pipe P is long, undesired buckling deformation occurs between the pipes P. Therefore, it is necessary to use the mandrel 13 or the rollers 5 1 and 52 and shorten the support span. In the pipe processing method of the present invention, the pipe P is conveyed at a constant conveyance speed VI and V2, and a constant compressive force is continuously applied to the axial direction of the pipe P to continuously form the pleats. Description. However, the present invention is not limited thereto, and the tube P between the holding positions HI and H2 may be subjected to a compressive force in the axial direction, and the wavy pleats may be formed in the heating unit S. For example, in the state where the first holding position Η1 is stopped, the second chuck 12 is moved in the left direction of the first or second drawing by the second transport mechanism 16 and is inserted into the tube Ρ at the holding position HI, The tube between the crucibles 2 may be subjected to a compressive force in the axial direction, and a pleated portion may be formed in the heating portion S. Further, after the first chuck 11 and the second chuck 12 are moved at the same speed by using the first and second transport mechanisms 15 and 16, the position of the heating unit S can be changed continuously or discretely. The ground forms a pleat. -17- 201219122 In this manner, the tube processing apparatuses 10 and 50 are controlled by the control unit 17 to control the conveyance speeds VI and V2, the temperature of the heating unit S, and the internal pressure of the tube P. The pipe P is formed in the pipe P, and the degree of freedom of processing is extremely high. [Brief Description of the Drawings] Fig. 1 is a view showing a pipe processing apparatus according to the first embodiment of the present invention. Fig. 2 is a view showing a tube processing apparatus according to a second embodiment of the present invention. [Description of main component symbols] 10, 50: Tube processing apparatus 11 : 1st chuck 12 : 2nd chuck 1 3 : Mandrel 1 4 : Heating coil 15 : 1st conveyance mechanism 16 : 2nd conveyance mechanism 1 7 : Control unit 18: High-frequency current generating device 19: Cooling coil 20: Refrigerant supply device 21: Temperature sensor-18 - 201219122 22, 23, 2 4, 25, 26, 27 : 33, 35 : P : S : 51 , 2 8 : Ball nut part 29 : Multiple ball 30 : Ball screw shaft 3 1 : Servo motor 3 2 : Electric drive guide 34 : Encoder pressurizing mechanism Tube heating part 52 : Roller 19-