1263764 九、發明說明： 【發明所屬之技術領域】 本發明係關於定位熱導管中心準位之治具，藉由此治具 之實現能在自動化製程中將中心棒精準地定位在銅管之中 心’使塡粉時在該銅管內壁與中心棒之間形成一均勻等厚的 金屬粉層。 【先前技術】 近年來隨著資訊、通信及光電產業的快速發展，電子產 品逐漸走向高階化及輕薄化，在高速度、高頻率及小型化之 需求下，電子元件的發熱密度愈來愈高，因此散熱效率已經 成爲決定電子產品穩定性的重要因素；由於熱導管具有高效 率的熱傳導特性，已是電子產品中廣泛應用的導熱元件之 一。導熱管之主要構成，係在一真空之密閉銅管內壁燒結有 一毛細層，在毛細層中心形成有一通道，並在該銅管內部注 入有工作流體；利用管內之工作流體在蒸發端吸收熱源（如 從CPU等電子元件）而氣化，受熱端之蒸氣壓力因此昇高 而經由中心通道流向壓力較低的冷凝端，該蒸氣在冷凝端藉 由例如散熱鰭片及風扇等散熱後凝結成液體，並受到毛細層 之毛細力作用迴流到蒸發端而構成一密閉循環。 習知導熱管之製程中，係先將一中心棒定位在該銅管內 之中心準位上，再將金屬粉充塡入管內，使中心棒外周形成 一均勻分佈的金屬粉層，經燒結後該金屬粉在銅管內壁形成 一均勻等厚的毛細層，冷卻後取出中心棒使毛細層中心形成 一流體通道。例如第11圖所示，爲申請人於中華民國新型 1263764 專利公告第5 8 8 67 9號揭示一種「熱導管 包括一漏斗型套管（22 )，其套接端可套； 該漏斗型套管（22 )內壁凸設有一組固淀 " 一中心棒（26)，可穿過該漏斗型套管（ (20)中，並透過該固定元件（36)使該 g於該銅管（2 〇 )之中心。 上述公開技術，係將一漏斗型套管（ (20 )之開口部，並以複數個螺栓（3 6 ) • 向中心方向將一中心棒（26 )鎖固在中心 術者可以理解的是’以複數個螺栓（3 6 ) 不可靠及效率不高，並且無法適應熱導管 【發明內容】 因鑑於傳統定位熱導管中心準位之 間，同時因應自動化製程之需求，本發明 供一種定位熱導管中心準位之治具及方沒 根據本發明之治具，係於自動化製程 ^ 精準地定位在一銅管之中心，爲了達成 的，其主要包括，一第一治具，其底部形 中心方向漸凹進之圓錐形之導引部’在該 一個對應於該銅管外徑之定位部，另於頂 圓孔徑與該定位部相通’及於此圓孔徑之 ~ 徑向突出部，該等突出部之頂點共同圍繞 心棒外徑之中心部；一第二治具，其底部 收容該第一治具，於頂部形成有一個往中 之製具」，其主要 接於該銅管（2 0 )， [元件（3 6 );及， 22)而插入該銅管 中心棒（2 6 )可固 22)套接在該銅管 分別自徑外方向朝 1。惟，熟習此項技 鎖固之定位方式並 ?之自動化製程。 治具尙有改善之空 之主要目的在於提 ^ ° 中用以將一中心棒 上述目的及其他目 成有一個自徑外往 導引部中心形成有 部中心形成有一個 內側形成有複數個 成一個對應於該中 形成有一個收容部 心方向導引之導引 1263764 部，及在該導引部中心形成有一個圓孔徑與該圓孔徑相通。 根據本發明，於熱導管之製程中藉由該第一治具將一中 心棒及一中空銅管導向中心，使該銅管定位在該定位部上， 及藉由其頂部中心圓孔徑內側之複數個徑向突出部，使該中 心棒維持在中心準位上，同時將金屬粉經由該第二治具頂部 之導引部之導引，可順利地自中心棒外周、該突出部與突出 部之間的間隙充塡入該銅管內，使中心棒外周形成一均勻分 佈的金屬粉層。如此，藉由該治具之實現得以將中心棒精準 ® 地定位在銅管中心，使燒結後該金屬粉在銅管內壁形成一均 勻等厚的毛細結構層。 【實施方式】 首先說明，在導熱管自動化步進之製程中，例如包括： 備料步驟、一次封口步驟、塡粉步驟、燒結步驟、真空注液 步驟、二次封口步驟、縮脖步驟、定長步驟及塑型步驟等而 最終至完成導熱管成品；本發明之技術即涉及該塡粉步驟， I 於此過程中係先將一中心棒定位在一銅管內之中心準位 上，再將金屬粉充塡入該銅管內，使中心棒外周形成一均勻 分佈的金屬粉層，然後經燒結步驟後使該金屬粉在銅管內壁 形成一均勻等厚的毛細層結構，並於冷卻後取出該中心棒使 毛細層中心形成一工作流體之通道。以下將配合實施例針對 本發明技術特點作進一步地說明，該實施例僅爲較佳代表的 範例並非用來限定本發明之實施範圍，謹藉由參考附圖結合 下列詳細說明而獲致最好的理解。 §靑參考桌1圖’製程設備從備料步驟中將一預定尺寸之 1263764 中空銅管40步進v經一次封口步驟將該中空銅管40 ， 縮口而形成有一個錐形及縮小孔徑之封口端4 0 a ’另 開放端40b ; —中心棒50，其一端50a形成半圓形的 定位在該銅管4 0之封口端4 〇 a中心，另一端5 0 b則 該開放端40b之外側。 請再參考第2至5圖，根據本發明定位熱導管中 之治具丨，其包括：一第一治具1 0，其外部呈等徑長 形，於底部上形成有一自徑外往中心方向漸凹進之圓 ® 導引部11，在該導引部1 1中心形成有一個定位部1: 頂部中心形成有一個圓孔徑1 3與該定位部1 2相通， 圓孔徑1 3之內側形成有複數個突出部1 3 1等。一第 20，外部係包含有一大徑部20a及一小徑部20b之不 的圓柱形，在其底部形成有一個對應於該第一治具] 之收容部2 1收容該第一治具1 〇，於頂部形成有一個 方向漸凹進之圓錐形導引部22，及在該導引部22中 有一個圓孔徑2 3與該第一治具1 〇之圓孔徑1 3相通 ^ 又包括有一基板30承接在該第一治具10與第二治| 底部上，該基板30之中心形成有一個導引部31，該 3 1係由底部徑外方向往頂部中心方向漸凹進之圓錐 孔，且對應啣接於該第一治具1 〇之導引部1 1 ;及， 30上包含有複數個螺孔32用來固定在該熱導管之製 ' (此部分未圖示）上構成一系統連接。 根據本發明，該第一治具1 〇導引部1 1中心之 1 2係對應於該銅管40外徑的圓孔徑，及其頂部中心 之--端 一端成 端部並 突伸在 心準位 之圓柱 錐形之 )-，另於 及於此 二治具 等徑長 L 〇外徑 往中心 心形成 。另外， "0之 導引部 形的鏤 該基板 程設備 定位部 之圓孔 1263764 /徑1 3的直徑係大於該中心棒5 0之外徑’及在該圓孔徑i 3 之內側，等距地分布至少有三個以上的突出部1 3 1 (成如第 3 a、3 b圖所示），該突出部1 3 1較佳爲四個（成如第3圖所 示）；及，該等突出部131之頂點131a共同圍繞成一個對 應於該中心棒外徑的中心部1 3 1 b，俯視該圓孔徑1 3時呈一 個”十”字形的槽孔。此外，該第二治具20頂部之導引部22 係自徑外往中心方向漸凹進之圓錐形，於該導引部2 2錐底 端中心形成有一個圓孔徑23對應在該第一治具1 〇中心圓孔 • 徑1 3之相同中心線上，且其直徑大於該第一治具1 0之中心 圓孔徑1 3。 誠如第6及7圖所示，該基板30之導引部31與該第一 治具10之導引部1 1，係用以將該中心棒50之另一端50b 及該銅管40之開放端40b導向中心方向之錐頂端移動，使 該中心棒5 0之另一端5 0 b穿過該第一^治具1 0頂部中心的圓 孔徑1 3，而突伸在該第二治具2 0導引部2 2中心圓孔徑2 3 之中心；同時，藉由該第一治具10導引部1 1之導引，使該 # 銅管40之開放端4〇b嵌入定位部12中定位。從第7圖觀察’ 上述突出部1 3 1之頂點1 3 1 a分別抵靠在該中心棒50b之外 周，且在該突出部1 3 1與突出部1 3 1之間、沿該中心棒5 0 外周形成有複數個間隙1 3 1 c與該銅管40內部相通；此時’ — 製程設備（此部分未圖示）將金屬粉60進給在該第二治具 - 20之導引部22中，經由該導引部22之導引可順利地自中心 棒50外周之複數個間隙131c充塡入該銅管40內，使中心 棒外周形成一均勻分佈的金屬粉60層。然後，製程設備步 1263764 進至燒結步驟，經高溫燒結後使該金屬粉60在銅管40內壁 -形成一均勻等厚的毛細層結構，並於冷卻後取出該中心棒使 毛細層中心形成一工作流體之通道。 另外，第8至1 0圖係根據本發明定位熱導管中心準位 之治具1之另一種實施例，前述實施例係從製造熱導管之銅 管4 0之外徑來定位，亦即根據熱導管每一批次製程之銅管 40的外徑，而選用具有對應於該外徑之定位部1 2的第一治 具10。本實施例不同之處，係從製造熱導管之銅管40之內 i 徑來定位，因此不需要依照不同批次製程之不同管徑銅管40 來更換第一治具1 0。 根據本實施例之治具1，其構造及定位方法基本上與前 述實施例相同，因此不另外贅述。誠如第9及9 a圖所示， 本實施例不同之處在於：該第一治具1 0，在底部上形成有一 個自徑外往中心方向漸凹進之錐形導引部1 1，在該導引部 1 1中心形成有複數個（至少有3個）往軸向突出之定位部 1 2 ’，另於頂部中心形成有一個圓孔徑1 3與該導引部1 1相 ® 通，及該複數個定位部1 2 ’之內側端在該圓孔徑1 3之內側形 成有複數個徑向突出部1 2 1。依照本實施例，該定位部1 2 ’ 徑向外側端往徑向內側端形成有一個傾斜的導引部1 23，及 該突出部1 2 1之下端部自徑內往徑外方向形成有一個傾斜的 導引部122與該導引部123相接；及，該第一治具10頂部 中心之圓孔徑1 3之直徑大於該中心棒5 0之外徑，該圓孔徑 1 3內側至少有3個以上之突出部1 2 1等距地分布在其內徑 上，且該等突出部1 2 1之頂點1 2 1 a，共同圍繞成一個對應於 -10- 1263764 _ 該中心棒5 0外徑之中心部1 3 1 b (成如第9 a圖所示）。 . 再如第8圖所示，本實施例之定位方法誠如前述實施 例’該基板3 0之導引部3 1與g亥弟一^治具1 0之導引部1 1 ’ 係用以將該中心棒50之另一端50b及該銅管40之開放端 4 0b導向中心方向之錐頂端移動，使該中心棒50之另一端 5 0b滑入該定位部12’中心之導引部122中，且穿過該第一 治具1 0頂部中心的圓孔徑1 3，而突伸在該第二治具20導引 部2 2中心圓孔徑2 3中心之上方，該中心棒5 0並受該等突 ® 出部1 2 1之限制在中心位置；同時，該定位部1 2 ’連接在該 突出部121下端之導引部123之前端順勢嵌入該銅管40開 放端40b之內徑中，由於該複數個定位部12’係等角地設置， 因此當該導引部123分別抵靠在該銅管40 口部上時即自然 到達中心準位，且能適合不同管徑之銅管而能自動調整。且 如第1 0圖所示，上述突出部1 2 1之頂點1 2 1 a分別抵靠在該 中心棒50b之外周，且在該突出部121與突出部121之間、 沿該中心棒50外周形成有複數個間隙1 3 1 c與該銅管40內 ^ 部相通；此時，製程設備將金屬粉60進給在該第二治具20 之導引部22中，經由該導引部22之導引可順利地自中心棒 50外周之複數個間隙1 3 1 c充塡入該銅管4〇內，使中心棒外 周形成一均句分佈的金屬粉60層。 ~ 以上僅爲本發明代表說明的較佳實施例，並不侷限本發 * 明實施範圍，即不偏離本發明申請專利範圍所作之均等變化 與修飾，應仍屬本發明之涵蓋範圍。 【圖式簡單說明】 -11- 1263764 ' 第1圖爲顯示本發明所涉及熱導管製程中之銅管及中 ^ 心棒之剖面不意圖。 第2圖爲本發明定位熱導管中心準位治具之分解狀態 剖面圖。 第3圖爲自第2圖之3 - 3方向視圖，係顯示第一治具之 俯視圖。 第3a圖爲顯示本發明第一治具之另一種型態之示意圖。 第 3b圖爲顯示本發明第一治具之再一種型態之TP葸 • 圖。 弟4圖爲自第2圖之4-4方向視圖，係顯不弟一'治具之 俯視圖。 第5圖爲第2圖之組合狀態之剖面圖。 第6圖爲本發明定位熱導管中心準位治具之實施狀態 之剖面圖。 第7圖爲自第6圖之7 - 7方向視圖，其係顯示本發明治 具之將銅管及中心棒定位在中心準位之平面示意圖。 ^ 第8圖爲本發明定位熱導管中心準位治具之第二種實 施例之剖面示意圖。 第9圖爲使用於第二種實施例之第一治具之剖面圖。 第9a圖爲自第9圖之9a-9a方向視圖，係顯示該第一 * 治具之俯視圖。 — 第10圖爲自第8圖之10-10方向視圖，其係顯示本發 明第二種實施例將銅管及中心棒定位在中心準位之平面示 意圖。 -12- 1263764 第1 1圖爲習知技術，係轉繪自中華民國新型專利公告 第588679號，其揭示一種定位熱導管之治具。 【主要元件符號說明】 1.. . 本創作治具 10…第一治具 11.. .導引部 1 2 ...定位部 12’...定位部 12 1 ...突出部 122.. .導引部 123.. .導引部 1 3…圓孔徑 13 1…突出部 1 3 1 a ...頂點 13 lb...中心部 1 3 1 c ...間隙 20 ...第二治具 2 1...收容部 22.. .導引部 2 3...圓孔徑 3 0 ...基板 3 1...導引部 3 2...螺孔 4 0 ...銅管 1263764 40a...封口端 40b ... 開放端 5 0..。 中心棒 60...金屬粉 -141263764 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a fixture for locating a heat pipe center level, by which the center rod can be accurately positioned in the center of a copper tube in an automated process 'When the powder is powdered, a uniform thickness of metal powder layer is formed between the inner wall of the copper tube and the center rod. [Prior Art] In recent years, with the rapid development of the information, communication and optoelectronic industries, electronic products are gradually becoming higher-order and lighter, and the heat density of electronic components is getting higher and higher under the demand of high speed, high frequency and miniaturization. Therefore, heat dissipation efficiency has become an important factor determining the stability of electronic products; due to the high efficiency of heat conduction of heat pipes, it has become one of the widely used heat conduction components in electronic products. The main component of the heat pipe is a capillary layer sintered on the inner wall of a vacuum sealed copper tube, a channel formed in the center of the capillary layer, and a working fluid is injected into the copper tube; the working fluid in the tube is absorbed at the evaporation end The heat source (such as an electronic component such as a CPU) is vaporized, and the vapor pressure of the heated end is increased to flow through the central passage to the lower pressure condensing end, and the vapor is condensed at the condensing end by heat dissipation such as fins and fans. It becomes a liquid and is returned to the evaporation end by the capillary force of the capillary layer to form a closed cycle. In the process of the conventional heat pipe, a center rod is first positioned at the center level in the copper pipe, and then the metal powder is filled into the pipe to form a uniformly distributed metal powder layer on the outer periphery of the center bar, and is sintered. The metal powder then forms a uniform thickness of capillary layer on the inner wall of the copper tube. After cooling, the center rod is taken out to form a fluid passage in the center of the capillary layer. For example, as shown in FIG. 11 , the applicant discloses a "heat pipe including a funnel type casing (22), the socket end of which can be covered by the applicant in the Republic of China No. 1263764 Patent Publication No. 5 8 8 67 9; The inner wall of the tube (22) is convexly provided with a set of solids " a central rod (26) which can pass through the funnel-shaped sleeve ((20) and through the fixing element (36) to make the g to the copper tube (2 〇) Center. The above disclosed technique is to lock a center rod (26) to the center of a funnel-type bushing (the opening of (20) with a plurality of bolts (3 6 ) The operator can understand that 'with multiple bolts (3 6 ) is unreliable and inefficient, and can not adapt to the heat pipe [invention] Because of the traditional positioning of the heat pipe center level, and in response to the needs of automated processes, The present invention provides a fixture for positioning a heat pipe center level and a fixture not according to the present invention, which is accurately positioned in the center of a copper tube in an automated process, and in order to achieve, it mainly includes a first treatment Conical shape with a bottom-shaped central shape The guiding portion 'in the positioning portion corresponding to the outer diameter of the copper tube, and the top circular aperture communicates with the positioning portion' and the radial protrusion of the circular aperture, the apex of the protruding portion surrounds together a central portion of the outer diameter of the heart rod; a second fixture having a bottom portion for receiving the first fixture, and a topping tool formed at the top, which is mainly connected to the copper tube (20), [element (3) 6); and, 22) insert the copper tube center rod (2 6 ) to be fixed 22) to be sleeved on the copper tube, respectively, toward the outer diameter direction. However, it is familiar with the positioning method of this technology and the automated process. The main purpose of the improvement of the fixture is to provide a central rod for the above purpose and other purposes. The outer diameter of the guide is formed at the center of the guide. The center is formed with an inner side formed with a plurality of formations. A guide 1263764 corresponding to the center direction of the receiving portion is formed, and a circular aperture is formed in the center of the guiding portion to communicate with the circular aperture. According to the present invention, a center rod and a hollow copper tube are guided to the center by the first jig in the process of the heat pipe, so that the copper tube is positioned on the positioning portion, and the inner side of the circular aperture is located inside. a plurality of radial protrusions for maintaining the center rod at a center level, and guiding the metal powder through the guiding portion of the top portion of the second jig, smoothly from the outer circumference of the center rod, the protruding portion and the protruding portion The gap between the portions is filled into the copper tube to form a uniformly distributed metal powder layer on the outer circumference of the center rod. Thus, by the realization of the jig, the center rod can be accurately positioned in the center of the copper tube, so that the metal powder forms a uniform thickness of the capillary structure on the inner wall of the copper tube after sintering. [Embodiment] Firstly, in the process of automatic stepping of the heat pipe, for example, the following steps include: preparing step, first sealing step, powdering step, sintering step, vacuum filling step, secondary sealing step, necking step, fixed length Steps and molding steps, etc., to finally complete the finished heat pipe; the technology of the present invention relates to the powder rolling step, in which a center rod is first positioned at a center level in a copper pipe, and then The metal powder is filled into the copper tube to form a uniformly distributed metal powder layer on the outer circumference of the center rod, and then the metal powder is formed into a uniform thick capillary layer on the inner wall of the copper tube after the sintering step, and is cooled. The center rod is then removed to form a working fluid passageway at the center of the capillary layer. The following is a description of the technical features of the present invention in conjunction with the embodiments, which are merely preferred examples and are not intended to limit the scope of the present invention. understanding. § 靑 reference table 1 diagram 'Processing equipment from the preparation step, a predetermined size of 1263764 hollow copper tube 40 step v through a sealing step to hollow the copper tube 40, formed a tapered and reduced aperture seal End 40 a 'the other open end 40b; - the center rod 50, one end 50a of which is semi-circularly positioned at the center of the sealing end 4 〇a of the copper tube 40, and the other end 50 0 b is outside the open end 40b . Referring to Figures 2 to 5, the fixture of the heat pipe according to the present invention comprises: a first jig 10 having an outer diameter of an outer diameter and a self-diameter to the center on the bottom. A direction-indented circle|guide portion 11 is formed with a positioning portion 1 at the center of the guiding portion 1 1 : a central opening 13 is formed with a circular aperture 13 communicating with the positioning portion 12, and the inner side of the circular aperture 13 A plurality of protrusions 1 3 1 and the like are formed. a 20th, the external system includes a cylindrical portion having a large diameter portion 20a and a small diameter portion 20b, and a receiving portion 2 corresponding to the first jig is formed at the bottom thereof to receive the first jig 1 〇, a conical guiding portion 22 is formed on the top portion, and a circular aperture 2 3 is formed in the guiding portion 22 to communicate with the circular aperture 13 of the first jig 1 A substrate 30 is received on the bottom of the first jig 10 and the second process. The center of the substrate 30 is formed with a guiding portion 31. The 31 is a cone which is gradually recessed from the outer diameter of the bottom toward the center of the top. a hole corresponding to the guiding portion 1 1 of the first jig 1 ; and 30 includes a plurality of screw holes 32 for fixing on the heat pipe system (not shown in this part) Form a system connection. According to the present invention, the center of the first jig 1 〇 guide portion 1 1 corresponds to the circular aperture of the outer diameter of the copper tube 40, and the end of the top end thereof is end-end and protrudes in the center The position of the cylindrical cone is -, and the outer diameter of the two fixtures is L 〇 and the outer diameter is formed toward the center. In addition, the diameter of the circular hole 1263764 / the diameter 1 3 of the substrate portion positioning portion of the substrate is greater than the outer diameter ' of the center rod 50 and the inner side of the circular aperture i 3 , etc. There are at least three protrusions 1 3 1 (as shown in Figures 3a and 3b) distributed from the ground, and the protrusions 1 31 are preferably four (as shown in Fig. 3); The apex 131a of the protrusions 131 are collectively surrounded by a central portion 1 3 1 b corresponding to the outer diameter of the center rod, and a "ten"-shaped slot is formed when the circular aperture 13 is viewed from above. In addition, the guiding portion 22 of the top portion of the second jig 20 is conically concave from the outer diameter toward the center, and a circular aperture 23 is formed at the center of the bottom end of the guiding portion 2 2 corresponding to the first Jig 1 〇 center hole • The same center line of diameter 1 3, and its diameter is larger than the center circle aperture of the first jig 1 0. As shown in FIGS. 6 and 7, the guiding portion 31 of the substrate 30 and the guiding portion 1 1 of the first jig 10 are used to connect the other end 50b of the center bar 50 and the copper tube 40. The open end 40b is moved toward the center of the cone, so that the other end of the center rod 50 passes through the circular aperture 13 of the top center of the first fixture 10, and protrudes from the second fixture. The guiding portion 2 2 is centered on the central circular aperture 2 3; at the same time, the guiding end 11 of the first jig 10 guides the open end 4〇b of the # copper tube 40 into the positioning portion 12 Positioning in. Observed from Fig. 7, the apex 1 3 1 a of the above-mentioned protrusion 1 3 1 abuts against the outer circumference of the center rod 50b, respectively, and between the protrusion 1 31 and the protrusion 1 3 1 along the center rod 5 0 is formed in the outer periphery with a plurality of gaps 1 3 1 c communicating with the inside of the copper tube 40; at this time, the process equipment (the portion not shown) feeds the metal powder 60 to the second fixture - 20 In the portion 22, the guide portion 22 can be smoothly introduced into the copper tube 40 from a plurality of gaps 131c on the outer circumference of the center rod 50, so that a uniform distribution of 60 layers of metal powder is formed on the outer circumference of the center rod. Then, the process equipment step 1263764 proceeds to the sintering step, and after the high temperature sintering, the metal powder 60 is formed on the inner wall of the copper tube 40 to form a uniform thick capillary layer structure, and after cooling, the center rod is taken out to form the center of the capillary layer. A channel for working fluids. In addition, the eighth to tenth drawings are another embodiment of the jig 1 for positioning the heat pipe center level according to the present invention, and the foregoing embodiment is positioned from the outer diameter of the copper pipe 40 for manufacturing the heat pipe, that is, according to The outer diameter of the copper tube 40 of each batch of the heat pipe is selected, and the first jig 10 having the positioning portion 12 corresponding to the outer diameter is selected. The difference in this embodiment is that it is located from the inside diameter of the copper tube 40 for manufacturing the heat pipe, so that it is not necessary to replace the first jig 10 according to different pipe diameters 40 of different batch processes. According to the jig 1 of the present embodiment, the construction and positioning method thereof are basically the same as those of the foregoing embodiment, and therefore will not be further described. As shown in Figures 9 and 9a, the present embodiment differs in that the first jig 10 is formed with a tapered guiding portion 1 1 which is gradually recessed from the outer diameter toward the center. A plurality of (at least three) positioning portions 1 2 ′ protruding in the axial direction are formed at the center of the guiding portion 1 1 , and a circular aperture 13 is formed at the center of the top portion and the guiding portion 1 1 is formed. The inner end of the plurality of positioning portions 1 2 ′ is formed with a plurality of radial protrusions 1 2 1 inside the circular aperture 13 . According to this embodiment, the radially outer end of the positioning portion 1 2 ′ is formed with an inclined guiding portion 1 23 toward the radially inner end, and the lower end portion of the protruding portion 1 2 1 is formed from the inner diameter to the outer diameter direction. An inclined guiding portion 122 is in contact with the guiding portion 123; and a diameter of the circular aperture 13 at the top center of the first jig 10 is larger than an outer diameter of the central rod 50, and the circular aperture 13 is at least inside There are more than three protrusions 1 2 1 distributed equidistantly on the inner diameter thereof, and the apexes 1 2 1 a of the protrusions 1 2 1 are collectively surrounded by one corresponding to -10- 1263764 _ the center rod 5 The center portion of the outer diameter of 0 is 1 3 1 b (as shown in Fig. 9a). Further, as shown in FIG. 8, the positioning method of the present embodiment is as in the foregoing embodiment, the guiding portion 3 1 of the substrate 30 and the guiding portion 1 1 ' of the g The other end 50b of the center rod 50 and the open end 40b of the copper tube 40 are guided to the center of the cone end, and the other end 50b of the center rod 50 is slid into the guiding portion of the center of the positioning portion 12'. 122, and through the circular aperture 13 of the top center of the first jig 10, and protrudes above the center of the central circular aperture 2 3 of the guiding portion 2 2 of the second jig 20, the central bar 5 0 And being constrained by the protrusions 1 1 1 at a central position; at the same time, the positioning portion 1 2 ′ is connected to the front end of the guiding portion 123 at the lower end of the protruding portion 121 and is embedded in the open end 40 b of the copper tube 40 In the path, since the plurality of positioning portions 12' are equiangularly disposed, when the guiding portions 123 respectively abut against the mouth of the copper tube 40, the centering position is naturally reached, and the copper can be adapted to different diameters. It can be adjusted automatically. And as shown in FIG. 10, the apex 1 2 1 a of the protruding portion 1 2 1 respectively abuts against the outer circumference of the center rod 50b, and between the protruding portion 121 and the protruding portion 121 along the central rod 50 A plurality of gaps 1 3 1 c are formed in the outer circumference to communicate with the inner portion of the copper tube 40. At this time, the processing device feeds the metal powder 60 into the guiding portion 22 of the second jig 20 via the guiding portion. The guide of 22 can be smoothly filled into the copper tube 4〇 from a plurality of gaps 1 3 1 c of the outer circumference of the center rod 50, so that a 60-layer metal powder with a uniform sentence distribution is formed on the outer circumference of the center rod. The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, that is, the equivalent variations and modifications without departing from the scope of the present invention should still fall within the scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS -11- 1263764' Fig. 1 is a schematic view showing a cross section of a copper tube and a middle core rod in the heat pipe process of the present invention. Fig. 2 is a cross-sectional view showing the exploded state of the positioning fixture of the positioning heat pipe of the present invention. Fig. 3 is a view from the 3 - 3 direction of Fig. 2 showing a plan view of the first jig. Fig. 3a is a schematic view showing another form of the first jig of the present invention. Fig. 3b is a TP葸 diagram showing still another type of the first jig of the present invention. The picture of Brother 4 is from the 4-4 direction of Figure 2, which shows the top view of the 'Jiji'. Fig. 5 is a cross-sectional view showing the combined state of Fig. 2. Fig. 6 is a cross-sectional view showing the state of implementation of the positioning heat pipe center level fixture of the present invention. Fig. 7 is a view from the 7-7 direction of Fig. 6, which is a plan view showing the copper tube and the center rod of the present invention positioned at a center level. ^ Figure 8 is a cross-sectional view showing a second embodiment of the positioning heat pipe center level fixture of the present invention. Figure 9 is a cross-sectional view of the first jig used in the second embodiment. Fig. 9a is a view from the direction of 9a-9a of Fig. 9 showing a plan view of the first * jig. - Figure 10 is a view from the 10-10 direction of Figure 8, which shows a plan view of the second embodiment of the present invention for positioning the copper tube and the center rod at a central level. -12- 1263764 Fig. 1 1 is a conventional technique, which is reproduced from the Republic of China New Patent Publication No. 588679, which discloses a fixture for positioning a heat pipe. [Description of main component symbols] 1.. This creation fixture 10... First fixture 11.. Guide portion 1 2 ... positioning portion 12'... positioning portion 12 1 ... protruding portion 122. .. guiding portion 123.. guiding portion 1 3... circular aperture 13 1 ... protruding portion 1 3 1 a ... apex 13 lb ... central portion 1 3 1 c ... gap 20 ... Erji 2 1... accommodating portion 22.. guiding portion 2 3... circular aperture 3 0 ... substrate 3 1 ... guiding portion 3 2 ... screw hole 4 0 ... Copper tube 1263764 40a... sealing end 40b ... open end 5 0.. Center bar 60...metal powder -14