201217081 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 種可變形被形成於管狀構件的褶形狀的管加工裝置及方 法。 【先前技術】 以往，將原材管（管狀構件）予以加工，來製造波紋管 等，連續地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 間之形狀使原材管鼓出，使波紋被成形。 專利文獻1:日本特開20〇3·2〇2077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，有波紋管之製造成本高的問題。 本發明是提供一種不必使用金屬模，可變形波紋管 等’連續地具有波浪狀褶部的管狀構件之褶形狀的管加工 裝置及方法，作爲目的。 本發明的一種管加工裝置，其特徵爲：具備：加熱 -5- 201217081 手段、及壓縮力施加手段、及搬運手段、以及控制手段， 該加熱手段是將管狀構件的加熱部予以加熱，該壓縮力施 加手段是朝向上述管狀構件的軸方向施加壓縮力，該搬運 手段是將上述管狀構件朝向軸方向予以搬運，該控制手段 是將上述搬運手段予以控制，上述控制手段是以每次2倍 於連續形成於上述管狀構件的波浪狀褶部之節距的距離進 行搬運該管狀構件之方式來控制上述搬運手段。 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，將連續形成於管狀構件的 波浪狀褶部之褶谷作爲加熱部，一面以加熱手段予以加 熱，一面利用壓縮力施加手段朝向管狀構件的軸方向施加 壓縮力，則成爲可將該褶部之褶谷朝向徑方向外方予以鼓 出之方式使之變形。藉由此，以該褶谷作爲中心的兩個褶 部成爲一個褶部，此褶部高度是成爲比原來的褶部之褶部 高度還要高。 又，搬運手段是被控制手段予以控制，以每次2倍於 連續形成於管狀構件的波浪狀褶部之節距的距離進行搬運 該管狀構件。藉由此，成爲可將褶部之褶谷隔著一個連續 地變形。 利用以上，不必使用金屬模，就可將波紋管等，連續 地具有波浪狀褶部的管狀構件的褶形狀予以變形。又’不 使用金屬模之故，因而成爲可刪減變形成本。 本發明的管加工裝置中，具備：將上述管狀構件的內 -6 - 201217081 部予以加壓的加壓手段較佳。 這時候，藉由使用加壓.手段來加壓管狀構件的內部， 抑制著對於管狀構件的徑方向內方之變形，而且對於徑方 向外方之變形有所幫助。因此，利用壓縮力施加手段，當 朝向管狀構件的軸方向施加壓縮力時，成爲可將位於加熱 部的褶部之褶谷朝向徑方向外方確實地鼓出之方式予以變 形。 本發明的一種管加工方法，其特徵爲：具備：一面 位於連續形成有波浪狀褶部之管狀構件之上述褶部的褶谷 予以加熱，一面朝向上述管狀構件的軸方向施加壓縮力的 工序。 依照本發明的管加工方法，被加熱之加熱部是被加熱 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，將連續形成於管狀構件的波浪 狀褶部之褶谷作爲加熱部，一面予以加熱，一面朝向管狀 構件的軸方向施加壓縮力，則成爲可將該褶部之褶谷朝向 徑方向外方予以鼓出之方式使之變形。藉由此，以該褶谷 作爲中心的兩個褶部成爲一個褶部，此褶部高度是成爲比 原來的褶部之褶部高度還要高。 因此，不必使用金屬模，就可將波紋管等，具有波浪 狀褶部的管狀構件的褶形狀予以變形。又，不使用金屬模 之故，因而成爲可刪減變形成本。 在本發明的管加工方法中，具備：將管狀構件朝向軸 方向僅搬運上述褶部的節距的2倍距離的工序較佳。 201217081 這時候，不必使用金屬模，就可將波紋管等，連續地 具有波浪狀褶部的管狀構件的褶形狀一樣地予以變形。 又’不使用金屬模之故’因而成爲可刪減變形成本。 【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 〇加以 說明。 參照第1圖’管加工裝置1 0是使管P變形並形成所 期望的波浪狀褶部（環狀凹凸），並得到波紋管（蛇腹管）B 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，並限定於圓筒狀，亦可爲方筒狀 等。再者，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。 管加工裝置10，是具備：第1夾頭11，第2夾頭 12,加熱盤管13，第1搬運機構14，第2搬運機構15, 以及控制單元1 6。 第1夾頭11及第2夾頭12，是在管Ρ的軸方向以下 述的加熱部S夾在中間之方式，以第1及第2保持位置 HI、Η2分別保持管Ρ。在加工中，管Ρ不會從保持位置 HI、Η2偏離之方式，夾頭11、12是以適當的保持力來保 -8- 201217081 持管p之外周面。 加熱盤管13,是將管P的加熱部S予以加熱者，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13被加熱至目標溫度的距管P之軸方向較短的環狀 部分。 加熱盤管13，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 7供應著高頻電流，則加熱盤管1 3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13，使用環狀加熱器，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13,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。 又，鄰接於加熱盤管13，設置冷卻盤管18較佳。冷 卻盤管1 8，是從冷媒供應裝置1 9供應著水、油等的流體 冷媒，來防止依加熱盤管13所致之加熱，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13之 盤管寬度及加熱盤管13與冷卻盤管18之隔間距離等定 出。 又，鄰接於加熱部S配置有溫度感測器20。溫度感 測器20，是非接觸型之溫度感測器，檢測出加熱部S之 溫度。 -9 - 201217081 第1搬運機構14，是藉由使第1夾頭11移動，俾使 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搬運機構14，是相當於 本發明的搬運手段。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14，是具備：被固定於第丨夾頭11的 滾珠螺帽部21，及經由滾珠螺帽部21與複數滾珠22進 行嚙合的滾珠螺軸23，及被連接於滾珠螺軸23，並使滾 珠螺軸23旋轉的伺服馬達24。滾珠螺帽部21，是被引導 至直線運動引導機構的導件26進行直線動作。 當經由電動驅動器25使伺服馬達24旋轉驅動時，則 使滾珠螺軸23旋轉，並使滾珠螺帽部21被引導至導件 26進行直線動作。藉由此，第1夾頭11以第1搬運速度 VI移動至第1圖的右方向。 第2搬運機構15，是藉由使第2夾頭12移動，俾使 第2保持位置H2的管P以搬運速度V2從加熱部s遠離 之方式搬運（抽出）至第1圖的右方向。第2搬運機構15, 是相當於本發明的搬運手段。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15，是具備：被固定於第2夾頭12的 滾珠螺帽部27，及經由滾珠螺帽部27與複數滾珠28進 行嚙合的滾珠螺軸29，及被連接於滾珠螺軸29,並使滾 珠螺軸29旋轉的伺服馬達30。滾珠螺帽部27，是被引導 至直線運動引導機構的導件26進行直線動作。 -10- 201217081 當經由電動驅動器3 1使伺服馬達3 0旋轉驅動時，則 使滾珠螺軸29旋轉，並使滾珠螺帽部27被引導至導件 26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△ V( = V1-V2)，縮短保持位置 HI、H2間之距離，對於位在其間之管p朝向軸方向施加 壓縮力。搬運機構14、15，是相當於本發明的壓縮力施 加手段。 又’作爲搬運機構14、15，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11、12。 又，管加工裝置1〇，是具備：加壓機構35。加壓機 構35，是使管P或是波紋管B(參照第4圖）的內部加壓 者，相當於本發明的加壓手段。 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P或是波紋管B的內部塡充高壓的流體，藉 此，提高管P或是波紋管B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P或是波紋管B的材質、內徑、管厚、 加熱部S的溫度、寬度等’將內壓從數氣壓提高至數十氣 壓程度。 控制單元16 ，是由CPU、ROM、RAM、I/O等所構 成，相當於本發明的控制手段。控制單元1 6，是經由電 動驅動器25、31並被連接於伺服馬達24、30。在各伺服 馬達24、30配設有用以檢測出各該伺服馬達24、30之旋 -11 - 201217081 轉數的編碼器32、33。 在控制單元1 6的記億部，存儲著管P的材質或形 狀、相對於因應於須形成的褶部之形狀等的搬運速度 VI、V2的伺服馬達24、30之旋轉數。在控制單元16的 記憶部，將搬運速度VI、V2作爲同一，並存儲著相對應 於連續所形成的褶部之節距的僅2倍距離進行搬運管P的 情形的伺服馬達24、30之步進數。 控制單元16，是參照此些旋轉數或是步進數，並因 應於來自編碼器32、33的檢測信號，將控制信號發送至 電動驅動器25、31，來控制伺服馬達24、30。 又，控制單元16，是也被連接於高頻電流產生裝置 1 7、溫度感測器20。在控制單元1 6的記億部，存儲著 管P的材質或形狀、因應於須形成的褶部之形狀等之加熱 部S的目標溫度。目標溫度是至少超過管P之軟化溫度的 溫度。 控制單元16，是參照此目標溫度，因應於來自溫度 感測器20的檢測信號，將控制信號發送至高頻電流產生 裝置1 7，並利用來控制被供應於加熱盤管1 3的高頻電流 値，來調整加熱部S的溫度。又，在控制單元16也連接 冷媒供應裝置1 9及加壓機構3 5。 以下，針對於使用管加工裝置1〇的本發明的第1實 施形態的管加工方法加以說明。 首先，使用表示於第2(a)圖的內徑D的原材管的管 P，參照第3圖，在管P進行連續地形成波浪狀褶部的第 -12- 201217081 1成形工序（Si)。 作爲第1成形工序，最初’作業人員是將加熱部s夾 在保持位置HI、H2之間的方式，使用夾頭11、12，進行 保持原材管的管P的保持工序（S1·1)。 之後，進行使加熱部S加熱的加熱工序（S 1-2)。又， 加熱工序與其後的搬運工序，是利用未予圖示之啓動按鈕 的按壓，並藉由控制單元16被實行。 在加熱工序中，高頻電流從高頻電流產生裝置17被 供應於加熱盤管1 3，藉由依加熱盤管1 3所成的高頻加 熱，使加熱部S全周面地均勻地被加熱至目標溫度。另一 方面，鄰接於加熱部S之部分’是利用冷卻盤管18被冷 卻至至少不足軟化溫度。 又，一面將加熱部S維持在目標溫度，一面進行搬運 管P的搬運工序（S1-3)。具體而言’使用第1搬運機構I4 並經由第1夾頭Π’以第1搬運速度VI來搬運第1保持 位置H1的管P，而且使用第2搬運機構15並經由第2夾 頭12，以第2搬運速度V2來搬運第2保持位置H2的管 P 〇 藉由搬運速度之相差△ V( = V1-V2)，縮短保持位置 Η 1、H2間之距離，在位於其間之管P的軸方向被施加很 大的壓縮力。在此’加熱部S是超過軟化溫度被加熱’而 成爲容易地變形。另一方面，加熱部S以外之管Ρ的溫度 是不足軟化溫度而不容易變形。所以’僅在加熱部S發生 變形。 -13- 201217081 又，一面同時地進行加熱工序（S1-2)與搬運工序（Sl-2)，一面使用加壓機構35來加壓管P之內部。 由依管P所致之斷面形狀的特性，變形是朝向徑方向 外方鼓出之方式容易發生。又，利用加壓機構35使管P 的內部被加壓之故，因而成爲加熱部S容易朝向徑方向外 方鼓出。因此，在加熱部S發生朝向徑方向外方鼓出》 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波紋管B。 之後，作業人員是進行用以解除依夾頭1 1、1 2所成 之保持波紋管B的解除工序（S 1-4)。藉由此，如第2(b)圖 所示地，可得到節距w、褶部高度（褶高）h、內徑D的波 紋管B。此波紋管B相當於本發明的管狀構件。 參照第4圖，使用以第1成形工序（S 1)所得到的波紋 管B，進行提高褶部高度h的第2成形工序（S 2)。 作爲第2成形工序，最初，作業人員是使用夾頭 11、12進行保持波紋管B的保持工序（S2-1)» 之後，作業人員是使用搬運機構14、15以同一速度 -14- 201217081 來移動夾頭11、12，藉此，來搬運波紋管B，並進行將褶 部之褶谷位於加熱部S之中心的初期位置設定工序（S2-2)。 然後，進行使加熱部S加熱的加熱工序（S2-3)。又， 自加熱工序之後的搬運工序，是利用未予圖示之啓動按鈕 的按壓等，藉由控制單元1 6所實行。 在加熱工序中，高頻電流從高頻電流產生裝置1 7被 供應於加熱盤管13，藉由依加熱盤管13所成之高頻加 熱，使加熱部S全周面均勻地被加熱至目標溫度。又，鄰 接於加熱部S的部分，是利用冷卻盤管18至少被冷卻至 不足軟化溫度。又，加熱部S的寬度，是因應於波紋管B 之材質、內徑、管厚、加熱部S的溫度等被定出，成爲褶 部之節距w之0.9〜1.5倍之長度左右較佳。 又，一面將加熱部S維持在目標溫度，一面進行在波 紋管B之軸方向施加壓縮力的壓縮力施加工序（S2-4)。具 體而言，固定第1夾辱11，在第1保持位置H1來保持波 紋管B，而且使用第2搬運機構15並經由第2夾頭12， 將第2保持位置H2的波紋管B朝向第1圖的左方向移動 距離△ t。 又，一面進行加熱工序（S2-3)及壓縮力施加工序（S2-4)，一面使用加壓機構35來加壓波紋管B之內部。 藉此，保持位置Η1、H2間之距離縮短△ t，朝向位 於其間之波紋管B的軸方向施加很大的壓縮力。在此，加 熱部S是超過軟化溫度被加熱，成爲容易地變形。另一方 -15- 201217081 面，加熱部s以外之波紋管B的溫度是不足軟化溫度而 並不容易變形。所以，僅在加熱部S發生變形。 由波紋管B的斷面形狀所成之特性，變形是朝向徑方 向外方鼓出之方式容易發生。又，利用加壓機構35使波 紋管B的內部被加壓之故，因而朝向徑方向外方變形的情 形有所幫助。因此，在加熱部S朝向徑方向外方發生鼓 出，使褶谷反轉成爲褶山，如第2(c)圖所示地，褶部的高 度成爲h’，而比原來的褶部的高度還要高（h’>h)。又，褶 部的節距是成爲w’，而比原來的褶部的節距w還要長 (W ’ >W)。 又，判斷是否結束成形（S2-5)。具體而言，將波紋管 B之預定範圍的褶部全部予以變形時等，判斷爲結束成 形。 判斷爲未結束成形時（S2-5:否），進行將波紋管B朝 向第1圖的徑方向僅搬運原來褶部之節距w的2倍距離 的搬運工序（S2-6)。反轉成爲褶山之部分，是利用波紋管 B被搬運，並藉由冷卻盤管18被冷卻而被硬化。 一方面，判斷爲結束成形時（S2-5:是），作業人員是進 行用以解除依夾頭11、12所成之保持波紋管B的解除工 序（S2-7)。 如此地’利用重複加熱工序及壓縮力施加工序，使原 來之波紋管B的褶部之褶谷隔著一個被鼓出，如第2(d) 圖所示地’可得到節距w，、褶部高度h，、內徑D的波紋 管B。 -16- 201217081 僅在第1成形工序中，不會破壞地可形成的褶部高度 h有所限制。在此，在第2成形工序，由第1成形工序所 形成的兩個褶部形成褶部高度h’較高的一個褶部。藉由 此，使用管加工裝置10可連續地形成各式各樣之形狀的 褶部。 .BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a tube processing apparatus and method, and more particularly to a tube processing apparatus and method for deforming a pleated shape formed on a tubular member. [Prior Art] Conventionally, when a raw material pipe (tubular member) is processed to manufacture a bellows or the like, and a forming pipe having a wavy pleat portion continuously is used, a metal mold is used. For example, Patent Document 1 describes a case where a plurality of metal molds are placed in the axial direction of the raw material pipe, and the inside of the raw material pipe is pressurized, and the interval between the metal molds is reduced. 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. Hei. No. Hei. No. 20 〇 · 077 077 077 077 077 077 077 077 ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' , , , , , , Therefore, a large number of metal molds must be prepared. 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 is high. SUMMARY OF THE INVENTION The present invention provides an apparatus and method for processing a pleat shape of a tubular member having a wavy pleat continuously without using a metal mold, a deformable bellows or the like, for the purpose. A pipe processing apparatus according to the present invention includes: means for heating -5 to 201217081, a compressive force applying means, a conveying means, and a control means for heating a heating portion of the tubular member, the compression The force applying means applies a compressive force toward the axial direction of the tubular member, and the transport means transports the tubular member in the axial direction. The control means controls the transport means, and the control means is twice as long as The conveyance means is controlled such that the distance between the pitches of the wavy pleats of the tubular member is continuously carried out to convey the tubular member. 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, the pleats which are continuously formed in the wavy pleats of the tubular member are heated as heating means, and when a compressive force is applied to the axial direction of the tubular member by the compressive force applying means, the pleats can be formed. The pleats are deformed by bulging outward in the radial direction. Thereby, the two pleats having the pleats as the center become a pleat portion, and the pleat height is higher than the pleat height of the original pleat portion. Further, the conveying means is controlled by the control means, and the tubular member is conveyed at a distance twice as long as the pitch formed continuously at the wavy pleats of the tubular member. Thereby, the pleats of the pleats can be continuously deformed by one. With the above, it is possible to deform the pleat shape of the tubular member having the wavy pleats continuously, such as a bellows, without using a metal mold. Moreover, the use of a metal mold is not used, so that the cost of deformation can be reduced. In the tube processing apparatus of the present invention, it is preferable to provide a pressurizing means for pressurizing the inner portion -6 - 201217081 of the tubular member. At this time, by pressurizing the inside of the tubular member by means of pressurization, the deformation in the radial direction of the tubular member is suppressed, and the deformation of the radial direction outward is facilitated. Therefore, when a compressive force is applied to the axial direction of the tubular member by the compressive force applying means, the pleats of the pleats located in the heating portion can be deformed so as to bulge outward in the radial direction. A pipe processing method according to the present invention is characterized in that it has a step of applying a compressive force to the axial direction of the tubular member while heating the pleats of the pleated portion of the tubular member in which the wavy pleats are continuously formed. According to the pipe processing method of the present invention, the heated heating portion is heated and easily deformed, but the tubular member other than the heating portion is not heated, so that it is difficult to deform. Therefore, when the pleats of the wavy pleats continuously formed in the tubular member are heated as the heating portion, and a compressive force is applied to the axial direction of the tubular member, the pleats of the pleats can be made outward in the radial direction. It is bulged to deform it. Thereby, the two pleats having the pleats as the center become a pleat portion, and the pleat height is higher than the pleat height of the original pleat portion. Therefore, it is possible to deform the pleat shape of the tubular member having the wavy pleats, such as a bellows, without using a metal mold. Moreover, since the metal mold is not used, the deformation cost can be reduced. In the pipe processing method of the present invention, it is preferable that the tubular member has a distance of only twice the pitch of the pleats in the axial direction. 201217081 At this time, it is possible to deform the pleat shape of the tubular member having the wavy pleats continuously, such as a bellows, without using a metal mold. Further, the reason why the metal mold is not used is such that the deformation cost can be reduced. [Embodiment] [First Embodiment] A tube processing apparatus 1 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 desired wavy pleat (annular unevenness), and obtaining a formed tube such as a bellows (snake tube) B. 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 a metal such as stainless steel, copper, aluminum or the like, or a resin. Further, the shape of the tube P is limited to a cylindrical shape, and 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 the feeder and is wound up in the package machine. The tube processing apparatus 10 includes a first chuck 11, a second chuck 12, a heating coil 13, a first transport mechanism 14, a second transport mechanism 15, and a control unit 16. The first chuck 11 and the second chuck 12 are sandwiched between the heating portions S described below in the axial direction of the tube, and the tubes are held by the first and second holding positions HI and Η2, respectively. During processing, the tube Ρ does not deviate from the holding positions HI, Η 2, and the chucks 11 and 12 are protected by an appropriate holding force to hold the outer surface of the tube p -8-201217081. The heating coil 13 is a heating means for heating the heating portion S of the tube P. In other words, the heating portion S is an annular portion that is shorter in the axial direction from the tube P by the heating coil 13 to be heated to the target temperature. The heating coil 13 is disposed so as to surround the heating portion S» circumferentially. When a high-frequency current generating device 17 composed of an alternating current power source, an oscillation circuit, a transformer, or the like supplies a high-frequency current, the heating coil 13 is The heating portion S is uniformly heated by the high frequency heating over the entire circumference. Further, instead of the heating coil 13, a ring heater is used, an electric current is supplied to the heater, and the heating portion S may be heated by electric conduction heating. Instead of the heating coil 13, a laser heating device is disposed uniformly around the heating portion S, and the heating portion S may be heated by laser heating. Further, it is preferable to provide the cooling coil 18 adjacent to the heating coil 13. The cooling coil 18 is supplied with a fluid refrigerant such as water or oil from the refrigerant supply device 19 to prevent heating by the heating coil 13 and to heat the portion adjacent to the heating portion S. Thereby, only the heating portion S is locally heated. The width of the heating portion S is determined in accordance with the coil width of the heating coil 13 and the distance between the heating coil 13 and the cooling coil 18. Further, the temperature sensor 20 is disposed adjacent to the heating unit S. The temperature sensor 20 is a non-contact type temperature sensor that detects the temperature of the heating portion S. -9 - 201217081 When the first chuck 11 is moved, the tube P of the first holding position H1 is conveyed (sent) to the heating unit s at the conveyance speed VI to the right direction of the first figure. . The first transport mechanism 14 is a transport means corresponding to the present invention. The first holding position H1 is located on the upstream side in the conveying direction than the heating unit S. The first transport mechanism 14 includes a ball nut portion 21 that is fixed to the second collet 11 , a ball screw shaft 23 that meshes with the plurality of balls 22 via the ball nut portion 21 , and a ball screw shaft that is coupled to the ball screw shaft 23, a servo motor 24 that rotates the ball screw shaft 23. The ball nut portion 21 is a guide member 26 guided to the linear motion guiding mechanism to perform a linear motion. When the servo motor 24 is rotationally driven via the electric actuator 25, the ball screw shaft 23 is rotated, and the ball nut portion 21 is guided to the guide 26 to perform a linear motion. Thereby, the first chuck 11 is moved to the right direction of the first drawing at the first conveyance speed VI. In the second transport mechanism 15, the second chuck 12 is moved, and the tube P at the second holding position H2 is transported (extracted) from the heating portion s at a transport speed V2 to the right direction of the first drawing. The second transport mechanism 15 corresponds to the transport means of the present invention. The second holding position H2 is located on the downstream side in the conveyance direction from the heating unit S. The second transport mechanism 15 includes a ball nut portion 27 that is fixed to the second chuck 12, a ball screw shaft 29 that meshes with the plurality of balls 28 via the ball nut portion 27, and a ball screw shaft that is coupled to the ball screw shaft. 29, the servo motor 30 that rotates the ball screw shaft 29. The ball nut portion 27 is guided by a guide 26 guided to the linear motion guiding mechanism to perform a linear motion. -10- 201217081 When the servo motor 30 is rotationally driven via the electric actuator 31, the ball screw 29 is rotated, and the ball nut portion 27 is guided to the guide 26 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 ΔV (= V1 - V2) of the conveyance speed, the distance between the holding positions HI and H2 is shortened, and a compressive force is applied to the tube p in between. The transport mechanisms 14 and 15 are compression force applying means corresponding to the present invention. Further, as the transport mechanisms 14 and 15, a hydraulic cylinder may be used. At this time, the collets 11, 12 are mounted on the piston of the hydraulic cylinder. Further, the tube processing apparatus 1 includes a pressurizing mechanism 35. The pressurizing mechanism 35 is an internal pressurizing means for the pipe P or the bellows B (see Fig. 4), and corresponds to the pressurizing means of the present invention. The pressurizing mechanism 35 is configured to increase the internal pressure of the pipe P or the bellows B by filling a high-pressure fluid between the pipe P or the bellows B sealed at both ends by a known means (not shown). . 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 from several air pressures to several tens of air pressures depending on the material of the pipe P or the bellows B, the inner diameter, the pipe thickness, the temperature, the width of the heating portion S, and the like. The control unit 16 is constituted by a CPU, a ROM, a RAM, an I/O, etc., and corresponds to the control means of the present invention. The control unit 66 is connected to the servo motors 24, 30 via the electric drives 25, 31. Encoders 32 and 33 for detecting the number of revolutions -11 - 201217081 of each of the servo motors 24 and 30 are disposed in the servo motors 24 and 30. The number of rotations of the servo motors 24 and 30 of the conveyance speeds VI and V2 of the pipe P is stored in the unit 100 of the control unit 16 in accordance with the material or shape of the pipe P and the shape of the pleats to be formed. In the memory unit of the control unit 16, the conveyance speeds VI and V2 are the same, and the servo motors 24 and 30 in which the conveyance pipe P is carried out in accordance with the distance of the pitch of the continuously formed pleats are stored. The number of steps. The control unit 16 refers to the number of rotations or the number of steps, and controls the servomotors 24, 30 by transmitting control signals to the electric actuators 25, 31 in response to detection signals from the encoders 32, 33. Further, the control unit 16 is also connected to the high-frequency current generating device 17 and the temperature sensor 20. In the unit of the control unit 16, the material or shape of the tube P, and the target temperature of the heating portion S in accordance with the shape of the pleat to be formed are stored. The target temperature is a temperature at least exceeding the softening temperature of the tube P. The control unit 16 refers to the target temperature, and transmits a control signal to the high-frequency current generating device 1 7 in response to the detection signal from the temperature sensor 20, and controls the high frequency supplied to the heating coil 13 The current 値 is used to adjust the temperature of the heating portion S. Further, the control unit 16 is also connected to the refrigerant supply device 19 and the pressurizing mechanism 35. Hereinafter, a tube processing method according to the first embodiment of the present invention using the tube processing apparatus 1A will be described. First, using the pipe P of the raw material pipe shown in the inner diameter D of the 2nd (a) figure, referring to FIG. 3, the forming process of the -12-201217081 1 in which the wavy pleats are continuously formed in the pipe P (Si ). In the first forming step, the worker first holds the heating unit s between the holding positions HI and H2, and holds the tube P holding the raw material tube using the chucks 11 and 12 (S1·1). . Thereafter, a heating step (S1-2) of heating the heating portion S is performed. Further, the heating step and the subsequent transporting step are performed by the control button 16 (not shown) and are executed by the control unit 16. In the heating step, the high-frequency current is supplied from the high-frequency current generating device 17 to the heating coil 13 and the heating portion S is uniformly heated over the entire circumference by the high-frequency heating by the heating coil 13 To the target temperature. On the other hand, the portion 'adjacent to the heating portion S is cooled by the cooling coil 18 to at least an insufficient softening temperature. Further, while the heating unit S is maintained at the target temperature, the transporting process of the transport pipe P is performed (S1-3). Specifically, the first transport mechanism I4 is used to transport the tube P of the first holding position H1 at the first transport speed VI via the first chuck Π, and the second transport mechanism 15 is used and the second chuck 12 is used. The pipe P 搬运 conveying the second holding position H2 at the second conveyance speed V2 is shortened by the phase difference ΔV (= V1 - V2) of the conveyance speed, and the distance between the holding positions Η 1 and H2 is shortened, and the pipe P is located therebetween. A large compressive force is applied to the axial direction. Here, the 'heating portion S is heated beyond the softening temperature' and is easily deformed. On the other hand, the temperature of the tube other than the heating portion S is less than the softening temperature and is not easily deformed. Therefore, only the heating portion S is deformed. -13- 201217081 Further, while performing the heating process (S1-2) and the conveying process (S1-2), the pressurizing mechanism 35 is used to pressurize the inside of the pipe P. From the characteristics of the cross-sectional shape by the tube P, the deformation is likely to occur in a manner of bulging outward in the radial direction. Further, since the inside of the pipe P is pressurized by the pressurizing mechanism 35, the heating portion S is likely to bulge outward in the radial direction. Therefore, the heating portion S is bulged outward in the radial direction, and the tube P is taken out at a constant conveying speed V2. Therefore, the heating portion S is also moved at a predetermined conveying speed V2. As a result, in the tube P, a wavy pleat is 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, the shape of the pleats is the same. Therefore, by maintaining the temperature of the heating unit S and the conveying speeds VI and V2 constant, the bellows B in which the pleats having the same shape are continuously formed can be formed. Thereafter, the worker performs a releasing step (S1-4) for releasing the holding bellows B formed by the chucks 1 1 and 1 2 . Thereby, as shown in Fig. 2(b), the corrugated tube B having the pitch w, the pleat height (pleat height) h, and the inner diameter D can be obtained. This bellows B corresponds to the tubular member of the present invention. Referring to Fig. 4, the second molding step (S 2) of raising the pleat height h is performed using the bellows B obtained in the first molding step (S1). In the second molding step, first, the worker uses the chucks 11 and 12 to hold the bellows B (S2-1)», and the worker uses the transport mechanisms 14 and 15 at the same speed-14-201217081. By moving the chucks 11 and 12, the bellows B is conveyed, and the initial position setting process (S2-2) in which the pleats of the pleats are located at the center of the heating unit S is performed. Then, a heating step (S2-3) of heating the heating portion S is performed. Further, the conveyance step after the self-heating step is performed by the control unit 16 by pressing or the like of a start button (not shown). In the heating step, the high-frequency current is supplied from the high-frequency current generating device 17 to the heating coil 13, and the heating portion S is uniformly heated to the target by the high-frequency heating by the heating coil 13. temperature. Further, the portion adjacent to the heating portion S is cooled to at least the softening temperature by the cooling coil 18. Further, the width of the heating portion S is determined in accordance with the material, the inner diameter, the tube thickness, and the temperature of the heating portion S of the bellows B, and is preferably about 0.9 to 1.5 times the pitch of the pleats w. . In addition, a compressive force applying step (S2-4) of applying a compressive force in the axial direction of the bellows B while maintaining the heating portion S at the target temperature is performed. Specifically, the first insult 11 is fixed, the bellows B is held at the first holding position H1, and the bellows B of the second holding position H2 is directed to the second conveyance mechanism 15 via the second chuck 12 1 The left direction of the figure moves by a distance Δ t. Further, while the heating step (S2-3) and the compressive force applying step (S2-4) are performed, the inside of the bellows B is pressurized by the pressurizing mechanism 35. Thereby, the distance between the holding positions Η1 and H2 is shortened by Δt, and a large compressive force is applied toward the axial direction of the bellows B located therebetween. Here, the heating portion S is heated beyond the softening temperature and is easily deformed. On the other side -15-201217081, the temperature of the bellows B other than the heating portion s is less than the softening temperature and is not easily deformed. Therefore, deformation occurs only in the heating portion S. The characteristic of the cross-sectional shape of the bellows B is such that the deformation is bulging outward toward the radial direction. Further, the inside of the bellows B is pressurized by the pressurizing mechanism 35, so that it is deformed outward in the radial direction. Therefore, the heating portion S is bulged outward in the radial direction, and the pleats are reversed to become pleats. As shown in the second (c), the height of the pleats is h', and is smaller than the original pleats. The height is even higher (h'>h). Further, the pitch of the pleats is w' and is longer than the pitch w of the original pleats (W ′ > W). Further, it is judged whether or not the forming is completed (S2-5). Specifically, when all of the pleats of the predetermined range of the bellows B are deformed, it is determined that the formation is completed. When it is determined that the molding is not completed (S2-5: NO), the conveyance step (S2-6) of transporting the bellows B by only twice the distance w of the original pleats in the radial direction of the first drawing is performed. The portion which is inverted into the pleats is conveyed by the bellows B and is cooled by the cooling coil 18 being cooled. On the other hand, when it is determined that the forming is completed (S2-5: YES), the worker performs the releasing process for releasing the bellows B by the chucks 11 and 12 (S2-7). By using the repeated heating step and the compressive force applying step, the pleats of the pleats of the original bellows B are swelled one by one, and the pitch w is obtained as shown in the second (d) diagram. Bellows B having a pleat height h and an inner diameter D. -16- 201217081 Only in the first forming step, the pleat height h which can be formed without breaking is limited. Here, in the second molding step, the two pleat portions formed in the first molding step form one pleat portion having a high pleat height h'. Thereby, the pleats of various shapes can be continuously formed using the tube processing apparatus 10. .
[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5圖，管加工裝置50,是與上述的管加工裝 置1 〇相類似之故，因而僅針對於不相同部分加以說明。 管加工裝置50，是與管加工裝置10相比較，又具備 心軸5 1。 心軸5 1，是在軸方向位於保持位置Η 1、H2之間與管 Ρ或是波紋管Β相抵接，並支承著此些。心軸51，是不 鏽鋼、鋁等的金屬或是硬質樹脂所構成的圓棒形狀，其直 徑是與管Ρ或是波紋管Β的內徑D同等。 在此，心軸51，是事先被插入於管Ρ或是波紋管Β 的內側。心軸5 1，是從管Ρ或是波紋管Β之最初加工部 分（最初的加熱部S)延伸至第1保持位置Η1全面。但 是，心軸51之插入方法並不被限定於此，只要心軸51至 少存在於保持位置Η 1、Η2的端部之間就可以。例如’將 心軸.51從第2保持位置Η2側插入至內側，並從管Ρ或 是波紋管Β之最後加工部分（最後的加熱部S)延伸至第2 -17- 201217081 保持位置H2全面也可以。 在保持工序（Sl-1、S2-1)中，使用夾頭11、12來保持 將心軸5 1事先插入於內側的管p或是波紋管b。又，在 使用夾頭11、12所保持的管p或是波紋管b的內側插入 心軸5 1也可以。 在使用管加工裝置50的管加工方法中，也與使用上 述的管加工裝置10的管加工方法同樣，如第2(d)圖所示 地，可得到節距w ’、褶部高度h，、內徑D的波紋管B， 並使用管加工裝置50可形成各式各樣之形狀的褶部。 然而’在搬運工序（S1-3)或是壓縮力施加工序（S2-4) 中’若在管P施加軸方向的壓縮力時，利用重力之影響等 使保持位置H1、H2間的管P之軸線未被維持在一直線 上’而在管P或是波紋管B會發生不期望的壓曲變形之 虞。 如此，在管加工裝置50中，藉由插入於內側的心軸 51來支承管P或是波紋管B。所以，管p或是波紋管b 的支承跨距’是成爲心軸51之前端與保持位置H2的端 面之間的距離，而與未插入心軸5 1之管加工裝置1 0相比 較被縮短。藉由此，可減低在管P或是波紋管B會發生 不期望的壓曲變形之虞。 又，在波紋管B之內側插入有心軸51之故，因而在 壓縮力施加工序（S2-4)中，不會容許發生朝向徑方向內方 的變形。所以，朝向徑方向外方確實地鼓出之方式會發生 變形。 -18- 201217081 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 〇、5 0是具備加壓機構3 5的情形加以說明。但是，加壓 機構35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或是波紋管B的情形加以說明。但是，垂直或傾斜地搬 運管P或是波紋管B的情形也可以。 又，針對於將相當於本發明的管狀構件的波紋管B， 使用管加工裝置1 〇、50所得到的情形加以說明。但是， 使用市場上出售品等的波紋管B，僅進行第2成形工序 (S2)也可以。 又，在管加工裝置50中，使用心軸51來支承管P或 是波紋管B。但是，支承管P或是波紋管B的手段並不被 限定於心軸51，而在保持位置HI、H2之間與管P或是波 紋管B相抵接，並支承此些者也可以。例如’使用抵接於 此些之外周面的滾子也可以。 【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(a)〜（d)圖是依次地表示管之加工狀態的局部斷 面圖。 第3圖是表示第1實施形態的管加工方法的流程圖。 第4圖是表示第2成形工序的管加工裝置的使用狀態 -19- 201217081 的槪念圖。 第5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】 1 〇、5 0 :管加工裝置 1 1 :第1夾頭 12 :第2夾頭 1 3 :加熱盤管 14 :第1搬運機構 15 :第2搬運機構 1 6 :控制單元 1 7 :高頻電流產生裝置 1 8 :冷卻盤管 1 9 :冷媒供應裝置 20 :溫度感測器 2 1、2 7 :滾珠螺帽部 22、 28 :滾珠 23、 29 :滾珠螺軸 24、 30 :伺月艮馬達 25、 3 1 :電動驅動器 26 :導件 32、33 :編碼器 3 5 :加壓機構 -20- 201217081 5 1 :心軸 P :管 B :波紋管 S :加熱部 -21[Second Embodiment] A pipe processing device 50 according to a second embodiment of the present invention will be described. Referring to Fig. 5, the tube processing apparatus 50 is similar to the tube processing apparatus 1 described above, and therefore only the different portions will be described. The tube processing device 50 is provided with a mandrel 51 in comparison with the tube processing device 10. The mandrel 51 is abutted against the tube or the bellows between the holding positions Η 1, H2 in the axial direction and supports the same. The mandrel 51 is a round bar shape made of a metal such as stainless steel or aluminum or a hard resin, and has a diameter equal to the inner diameter D of the pipe or the bellows. Here, the mandrel 51 is inserted into the inside of the pipe or the bellows 事先 in advance. The mandrel 51 is extended from the first processed portion (the first heating portion S) of the pipe or the bellows to the first holding position Η1. However, the insertion method of the mandrel 51 is not limited thereto, as long as the mandrel 51 is present at least between the ends of the holding positions Η 1, Η 2 . For example, 'insert the mandrel.51 from the 2nd holding position Η2 side to the inside and extend from the tube or the last processed part of the bellows 最后 (the last heating part S) to the 2nd -17-201217081. Also. In the holding step (S1-1, S2-1), the chucks 11 and 12 are used to hold the tube p or the bellows b in which the mandrel 5 1 is inserted in advance. Further, the mandrel 51 may be inserted into the inside of the tube p or the bellows b held by the chucks 11, 12. In the tube processing method using the tube processing apparatus 50, as in the tube processing method using the above-described tube processing apparatus 10, as shown in Fig. 2(d), the pitch w' and the pleat height h can be obtained. The bellows B of the inner diameter D, and the tube processing device 50 can be used to form pleats of various shapes. However, in the conveyance process (S1-3) or the compression force application process (S2-4), when the compression force in the axial direction is applied to the pipe P, the pipe P between the holding positions H1 and H2 is caused by the influence of gravity or the like. The axis is not maintained on a straight line' and undesired buckling deformation occurs in tube P or bellows B. Thus, in the tube processing apparatus 50, the tube P or the bellows B is supported by the mandrel 51 inserted inside. Therefore, the support span ' of the pipe p or the bellows b is the distance between the end face of the mandrel 51 and the end face of the holding position H2, and is shortened compared with the pipe processing device 10 that is not inserted into the mandrel 51. . Thereby, it is possible to reduce the occurrence of undesired buckling deformation in the tube P or the bellows B. Further, since the mandrel 51 is inserted inside the bellows B, deformation in the radial direction is not allowed to occur in the compressive force applying step (S2-4). Therefore, the manner in which the outer side is bulged outward in the radial direction is deformed. -18- 201217081 The embodiments of the present invention have been described with reference to the drawings, but the present invention is not limited thereto. For example, a case where the tube processing apparatus 1 〇, 50 is provided with the pressurizing mechanism 35 will be described. However, the pressurizing mechanism 35 may be omitted. Further, a case where the pipe P or the bellows B is horizontally conveyed in the pipe processing apparatuses 10 and 50 will be described. However, it is also possible to transport the pipe P or the bellows B vertically or obliquely. Moreover, the case where the bellows B corresponding to the tubular member of the present invention is obtained using the tube processing apparatuses 1 and 50 will be described. However, the bellows B such as a commercially available product may be used only in the second molding step (S2). Further, in the tube processing apparatus 50, the mandrel 51 is used to support the tube P or the bellows B. However, the means for supporting the pipe P or the bellows B is not limited to the mandrel 51, but may be abutted between the holding positions HI, H2 and the pipe P or the bellows B, and may be supported by these. For example, it is also possible to use a roller that abuts on the outer surface of the outer surface. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing a tube processing apparatus according to a first embodiment of the present invention. The second (a) to (d) are partial cross-sectional views sequentially showing the processing state of the tube. Fig. 3 is a flow chart showing a pipe processing method according to the first embodiment. Fig. 4 is a view showing the use state of the tube processing apparatus in the second forming step -19-201217081. Fig. 5 is a view showing a tube processing apparatus according to a second embodiment of the present invention. [Description of main component symbols] 1 〇, 5 0 : Tube processing device 1 1 : 1st chuck 12 : 2nd chuck 1 3 : Heating coil 14 : 1st conveyance mechanism 15 : 2nd conveyance mechanism 1 6 : Control Unit 1 7 : High-frequency current generating device 1 8 : Cooling coil 1 9 : Refrigerant supply device 20 : Temperature sensor 2 1 , 2 7 : Ball nut portion 22 , 28 : Ball 23 , 29 : Ball screw shaft 24 30: servo motor 25, 3 1 : electric drive 26 : guide 32, 33 : encoder 3 5 : pressurizing mechanism -20- 201217081 5 1 : mandrel P: tube B: bellows S: heating unit -twenty one