TW200831220A - Tool holder assemblies - Google Patents

Tool holder assemblies Download PDF

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Publication number
TW200831220A
TW200831220A TW096128858A TW96128858A TW200831220A TW 200831220 A TW200831220 A TW 200831220A TW 096128858 A TW096128858 A TW 096128858A TW 96128858 A TW96128858 A TW 96128858A TW 200831220 A TW200831220 A TW 200831220A
Authority
TW
Taiwan
Prior art keywords
tool
tool holder
holder assembly
memory metal
grip
Prior art date
Application number
TW096128858A
Other languages
Chinese (zh)
Inventor
John David Stratton
Original Assignee
Gsi Group Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB0615456A external-priority patent/GB0615456D0/en
Priority claimed from GBGB0615457.9A external-priority patent/GB0615457D0/en
Priority claimed from GBGB0701282.6A external-priority patent/GB0701282D0/en
Priority claimed from GBGB0710293.2A external-priority patent/GB0710293D0/en
Application filed by Gsi Group Ltd filed Critical Gsi Group Ltd
Publication of TW200831220A publication Critical patent/TW200831220A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/20—Longitudinally-split sleeves, e.g. collet chucks
    • B23B31/201—Characterized by features relating primarily to remote control of the gripping means
    • B23B31/207—Characterized by features relating primarily to remote control of the gripping means using mechanical transmission through the spindle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/24—Chucks characterised by features relating primarily to remote control of the gripping means
    • B23B31/26—Chucks characterised by features relating primarily to remote control of the gripping means using mechanical transmission through the working-spindle
    • B23B31/261—Chucks characterised by features relating primarily to remote control of the gripping means using mechanical transmission through the working-spindle clamping the end of the toolholder shank
    • B23B31/265—Chucks characterised by features relating primarily to remote control of the gripping means using mechanical transmission through the working-spindle clamping the end of the toolholder shank by means of collets

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)

Abstract

Tool holder assemblies comprising a tool receiving portion and tool gripping means for gripping a tool received in the tool receiving portion, the tool gripping means comprising at least one tool gripping portion which is moveable between a tool gripping position and a tool release position, and a memory metal portion which is controllably transformable in response to change in temperature between a first shape and a second shape and is arranged to act upon the tool gripping portion to move the gripping portion towards the tool gripping portion as the memory metal portion transforms from the first shape towards the second shape.

Description

200831220 九、發明說明： 【發明所屬之技術領域】 本發明係有關於工具持具總成、心轴及包含工具持具 總成之切削裝置。 5 【先前技術】200831220 IX. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to a tool holder assembly, a mandrel, and a cutting apparatus including the tool holder assembly. 5 [Prior technology]

目前相關之切削裝置例係一鑽孔機，例如，一用於pCB _ 鑽孔之尚速鑽孔機。這種鑽孔機可以配置成以超過 250,000rpm或甚至超過350,〇00rpm旋轉一鑽頭，以進行鑽孔 鲁 操作。 10 隨著鑽孔速度增加，通常欲使用之鑽頭尺寸亦备辦 加一以高速進行鑽孔之一部份原因是要使它在鑽孔之切判 邊緣處達到足夠之切線速度，以有效地對工作件進行鑽孔。 當鑽孔機需要以愈來愈高之旋轉速度運轉且鑽頭變得 愈來愈小時，欲製造可適當地固持一工具且在鑽孔時防2 15滑脫之工具持具總成會變得愈來愈困難。 _ 此外，這種鑽頭或其他工具通常亦需要可拆卸以進行 - 更換。由於已磨耗或斷裂之工具或因為需要不同尺寸之工 具，這更換是必要的。在例如高速pCB鑽孔之某些應用中， 必須非常頻繁地進行所謂“工具更換，，操作。 2〇 —用以將如鑽頭等工具固持在這些種類之切削带置中 的習知方式是利用一工具持具，且該工具持具包括_\置 在-包圍軸桿中之錐形孔内的雜形筒夹。該筒夹與轴桿係 置成可在該筒夾被拉人該轴桿中時，該等錐形部份互相 作用而使該筒夾抓握一***工具。 5 200831220 但是，目前已到達的階段是，必須得到之旋轉速度及/ 或一工具持具所需之小型化使得製造一可在切削時適當固 持該工具之習知以筒夾為基礎的工具持具變得困難或不可 能。 5 因此，本發明之目的在於提供另一種工具持具。 此外，雖然前述引言主要聚焦在鑽孔應用中，特別是 在高速PCB鑽孔應用中使用工具持具，但是可使用一新型 態之工具持具來達成其他目的，即在其他切削裝置中使用 通常是必要的。 10 【内】 在一方面，本發明提供一種工具持具總成，其包含一 工具收納部份及用以抓握一被收納在該工具收納部份中之 工具的工具抓握裝置，且該工具抓握裝置包含至少一可在 一工具抓握位置與一工具釋放位置之間移動之工具抓握部 15伤、及一記憶金屬部份，且該記憶金屬部份回應溫度之變 化而在-第一形狀與一第二形狀之間可受控制地轉變並且 T置成可在該記憶金屬部份由該第—形狀朝該第二形狀轉 變時，作用在該工具抓握部份上，使該抓握部份朝該工具 抓握位置移動。 、 20 肖記憶金屬部份可直接作用在該工具抓握部份上。 較佳地，有多數工具持具本體部份。 、該工具持具總成可包含一工具持具本體部份，且該至 少-工具抓握部份可連接該工具持具本體部份，並且該工 具抓握部份可以配置成當該工具抓握部份在該工具抓握位 6 200831220 置與該工具釋放位置之間移動時，可相對該工具持具本體 部份移動。 、該至V工具抓握部份可透過各個可彈性變形部份來 連接该工具持具本體部份。 5 一該工具持具本體部份及該至少—工具抓握部份可以由 早件式材料製成，且當有多數工具抓握部份時，該工呈 ^ =本體部份與前述多數工具抓握部份可由-單件式㈣ 裝成。 4〜成可配置成使得在該至少―卫具抓握部份在該抓 #伤位置與該卫具釋放位置之間移動時，該可變形部份 將變形。 士該工具抓握部份可在該抓握位置時可以比在該釋放位 置日守更罪近該工具持具總成之軸線。 X八抓握。卩伤可由該工具持具本體部份軸向地延伸 15出來。 • 4工具抓握部份可以設置在該工具持具本體部份之徑 、 向内侧。 办該工具抓握部份可由該工具持具本體部份之一徑向向 内大起部沿圓周緣延伸，在此由該用語“經向向内”應了解 的疋為大起部向内突出而可更靠近該卫具持具總成之軸 線，使得該突起部以徑向之方式“向内，，突出，且該突起並 不疋要朝一梭向方向突出，並且該徑向向内突起部可朝 一徑向方向由該工具持具本體部份突出。 忒工具抓握裝置可包含至少一包括該工具抓握部份及 7 200831220 該可變形部份之臂，且該記憶金屬部份可於一位置處作用 在该臂上’並且該位置係在該工具抓握部份之區域中或遠 離該工具抓握部份。 該臂可由该工具持具本體部份轴向地延伸，且該工具 5抓握部份與該工具持具本體部份被該可變形部份軸向地分 開0 ,广 ^ 該臂可由該工具持具本體部份之徑向向内突起部、沿 圓周緣壞繞該工具收納部份之内周緣延伸，且該工具抓握 ❿ 料與該向内突起部被該可變形部份沿圓周緣分開，並且 H)該徑向向内突起部可由I具持具本體部份朝 一徑向方向 突出。 該臂可由該J1具持具本體部健向向岐伸，且該工 具抓握部伤與該主要本體部份被該可變形部份徑向地分. 15 該臂可由一與該工具持具總成軸線平行之端部懸伸出 纟’且該臂可由—與該卫具持具總成軸線橫交之端部懸伸 出來。 當有多數工具抓握部份時，前述多數工具抓握部份可 互相分開地環繞在該工具收納部份之内周緣上。 20 在一組實施例中’有兩組工具抓握部份及兩工具持具 本體部份，其中第-組工具抓握部份可與第一本體部份之 連接，且第二組工具抓握部份可與第二本體部份連接。前 述兩工具持具本體部份可互相軸向地分開，且第一組工具 抓握部份可轴向地突出遠離該第一工具持具本體部份並朝 8 200831220 向該第二工具持具本體部份，並且第二組工具抓握部份可 轴向地突出遠離該第二工具持具本體部份並朝向該第一工 具持具本體部份。 第一組抓握部份可以環繞該工具收納部份之内周緣沿 5圓周緣互相分開，且第二缸抓握部份類似地環繞該工具收 納部份之内周緣沿圓周緣互相分開，並且第一組抓握部份 沿圓周緣设置在弟二抓握部份之間。因此，這可被視為提 供該等抓握部份之兩組相對向軸向互鎖臂或“指”。 在另一組實施例中，當有多數由該工具持具本體部份 10 沿圓周緣犬出之抓握部份時，至少一者可朝一第一圓周緣 方向突出且至少一其他者可朝一第二、相對圓周緣方向突 出。 又，可有多數對抓握部份，且在各對中之第一抓握部 份朝該第一圓周緣方向突出，並且在各對中之第二抓握部 15份朝該第二、相對圓周緣方向突出。 此外，可有多數工具持具本體部份之徑向向内突起部 伤，且各對抓握部份可由各個徑向向内突起部份支持。 該等沿圓周緣突出之抓握部份可環繞該工具收納部份 内周緣沿圓周緣互相分開，且一對抓握部份之第一抓握部 2〇份可隔著一圓周緣間距面向另一對抓握部份之第二抓握部 份。 於一垂直於該工具持具總成軸線之方向上所截取之抓 握部份橫截面可沿該工具持具本體部份之軸向長度實質上 為一定。 9 200831220 於垂直於该工具持具總成轴線之方向上所截取之工 具持具本體橫截面可沿該工具持具本體部份之輛向長度實 質上為一定。 於一垂直於該工具持具總成軸線之方向上所截取之抓 5握部份之臂橫截面可沿該工具持具本體部份之軸向長度實 ' 質上為一定。 、 ^ 此外，亦可有一與所有前述抓握部份連接共用工具持 具本體部份。 • 胃至少—抓握部份可具有-工具接觸表面，且該至少 1〇 —滅部份可具有至少—位桃1具制表面之雜處的 工具結合邊緣。當❹數王具結合邊料，至少_者可面 =一第1周緣方向且環繞該工具收納部份之内緣，而至 v另者可面向-第二、相對圓周緣方向且環繞該工具收 納部份之内周緣。 15 敎具結合邊緣可大致平行於與紅具持具本體部份 • 賴之對應抓握部份的邊緣，域4結合邊緣可大致垂 ·. 錄與該I具持具切部份連接之對應抓握部份的邊緣。 °亥或各抓握部份具有—記憶金屬接觸表面 ，且該記憶 金屬接觸表面可位在該抓握部份與該工具接觸表面相對之 20 一側上。 該工具持具總成可以配置成當_所承載工具被抓握在 該工具Γ部份切，使得該減部份被夹置在該記憶金 屬部份與該工具之間。 該工具持具總成可以配置成使該抓握部份設置在該記 200831220 憶金屬部份與該工具收納部份之内周緣表面之間。 又’可有多數記憶金屬部份’且該或各記憶金屬部份 可配置成可作用在各個抓握部份上。該或各記憶金屬部份 可以配置成可作用在各個抓握部份上，且該或各記憶金屬 5部份可配置成可在該記憶金屬部份朝該第二形狀轉變時， 迫使该或各抓握部份朝該工具持具總成之軸線移動。 該或各記憶金屬部份可以呈環狀，且當呈環狀時，該 吕己憶金屬部份可配置成使該環環繞該工具持具總成之軸 線。又，有兩軸向分開之環狀記憶金屬部份。當有兩組抓 10握部份時，該第一環狀記憶金屬部份可配置成可作用在該 第一組記憶金屬部份上且該第二環狀記憶金屬部份可配置 成可作用在該第二組記憶金屬部份上。該第一環狀記憶金 屬邛伤可朝向该第二工具持具本體部份設置，且該第二環 狀記憶金屬部份可朝向該第一工具持具本體部份設置。這 15可表示該等記憶金屬部份係配置成可朝向其遠端作用在該 等抓握部份上。 立錢各壤狀魏金屬部份可配置成該環的内徑當該記 u金=部份在其第—形狀時大於該記憶金屬部份在其第二 μ 、守這表示’利用七述結構，當該記憶金屬部份在其 第升邊日守，匕將擠壓該等抓握部份接觸一所承載工具。 具有兩軸向分開記憶金屬部份可擠壓一所承載工具上之兩 軸向相Μ處，且因此細處增加抓握力。 、該或各記憶金屬部份可呈長形，且該或各記憶金屬部 伤可相對该工具持具總成定向於軸向。該或各記憶金屬部 11 200831220 伤可呈桿狀，且該或各記憶金屬部份可具有一配置成可平 行=該工具持具總成之軸線的縱轴。當有多數記憶金屬: 伤時，廷些記憶金屬部份可環繞該工具持具總成之軸線互 相角度地分開。該或各記憶金屬部份可實質上沿著兮戍夂 5抓握部份之全長作用，且這可確保對一加長之所承載工具 ^ 柄之延伸長度得到良好抓握力。 ， 各δ己丨思金屬部份可配置成作用在兩抓握部份上，且兮 φ 等抓握部份可由兩對分開但相鄰之抓握部份形成。 該或各記憶金屬部份可設置在該工具持具本體部份中 10之各空洞内，且該或各記憶金屬部份可具有在該記憶金屬 部份位於該第一形狀及該第二形狀時緊密地嵌合各空洞的 形狀與尺寸。 該或各記憶金屬部份在該工具持具總成之徑向方向上 可具有在該第二形狀時比在該第一形狀時更大之厚度，且 15 該或各記憶金屬部份可在該記憶金屬部份朝該第二形狀轉 ^ 變時，迫使該或各抓握部份更遠離該工具持具本體部份。 - 該或各記憶金屬部份可具有一工具持具本體接觸表 面，該工具持具本體接觸表面可相對該記憶金屬部份接觸 各抓握部份之記憶金屬接觸表面的一表面。該記憶金屬部 2〇 份可確保當該記憶金屬部份朝該第二形狀轉變時，在該工 具持具本體部份與抓握部份之間有一連串機械接觸，使得 當該記憶金屬部份朝該第二形狀轉變時，隨著該記憶金屬 部份對抗該工具持具本體部份，該抓握部份將被驅動成更 靠近該工具持具總成之軸線。 12 200831220 車父佳地’该兄憶金屬部份係配置成如果在該第一形狀 且在一第一溫度閾值一侧上之溫度，則可朝該第二形狀轉 變，而如果在該第二形狀且在一第二溫度閾值另一側上之 溫度’則可朝該第一形狀轉變。較佳地，該記憶金屬部份 5係配置成可在一高於該第一溫度閾值之溫度時朝該第二形 狀轉變。較佳地，該記憶金屬部份係配置成可在一低於該 弟一溫度閾值之溫度時朝該第一形狀轉變，而這可使該記 憶金屬部份可在較高溫度下將該抓握部份朝該工具抓握位 置移動。一外力可施加在該記憶金屬部份上，以在一低於 10該第二溫度閾值之溫度下，促使它返回其第一形狀。 這是有用的，因為通常在操作時，一工具持具總成將 會升溫一例如由於該工具持具以高速旋轉而因摩擦產生之 熱或由於其他位於該心軸内與外兩者之熱源的緣故。因 此’當使用該工具持具總成時可達成“自動”抓握該工具之 15效果一這可利用已存在之熱源，即利用“廢熱，，或利用慎重 供應至該等記憶金屬部份之熱。 该工具持具總成可包含至少一用以供應熱交換流體之 流體通道’以加熱及/或冷卻該記憶金屬部份，或該等記憶 金屬部份之至少一者，且通常該流體是空氣。較佳地，該 20流體通道包含至少一使所承載流體與各個記憶金屬部份之 間可直接接觸的通道部份，且該記憶金屬部份可以是中空 的。該通道部份可設置在各個記憶金屬部份内，且該記憶 金屬部份之一内壁或多數内壁可界定出該通道部份。 該通道部份之一部份係由各個記憶金屬部份之外壁界 13 200831220 定，且各個記憶金屬部份可具有一溝槽，並且該溝槽之一 部份界定出該通道部份。環繞各個記憶金屬部份的結構， 例如該工具持具本體部份，可包含一溝槽，並且該溝槽之 一部份界定出《道部份。又，該或各記憶金屬部份:它 5設置於其中之各“具有可界定_道部狀形狀與尺 寸0 該工具持具總成可配置成可設置在-具有-内孔之軸 桿内，且該工具持具本體部份可配置成可設置在該内孔内 並具有可與該内孔之主要彎曲内表面緊密喪合之尺寸。該 10抓握衣置可配置成可設置在該軸桿之内孔内即，該或各 記憶金屬部份及該或各抓握部份可配置成可設置在該轴桿 之内孔内。 該工具持具總成可包含一筒夾，且該筒夹可包含該至 少一工具抓握部份。該筒夾可包含多數夾爪部份，且各失 15爪部份包含一工具抓握部份，並且該筒夹可包含該熱產生A related cutting device is exemplified by a drilling machine, for example, a speed drilling machine for pCB_drilling. Such a drill can be configured to rotate a drill bit at more than 250,000 rpm or even above 350, 00 rpm for drilling operations. 10 As the drilling speed increases, the size of the drill bit that is usually used is also required to be drilled at a high speed. Part of the reason is that it achieves sufficient tangential speed at the edge of the hole to effectively Drill holes in the work piece. When the drilling machine needs to run at an ever higher rotation speed and the drill bit becomes smaller and smaller, a tool holder assembly that can properly hold a tool and prevent slipping during drilling can become It is getting more and more difficult. _ In addition, such drill bits or other tools usually need to be detachable for - replacement. This replacement is necessary due to tools that have been worn or broken or because tools of different sizes are required. In some applications, such as high-speed pCB drilling, so-called "tool replacement, operation" must be performed very frequently. 2. The conventional way to hold tools such as drill bits in these types of cutting belts is to utilize a tool holder, and the tool holder includes a tangible collet disposed in a tapered hole in the surrounding shaft. The collet is coupled to the shaft to be pulled in the collet In the case of the rods, the conical portions interact to cause the collet to grasp an insertion tool. 5 200831220 However, the stage that has been reached so far is that the rotational speed must be obtained and/or the small size required for a tool holder. This makes it difficult or impossible to manufacture a collet-based tool holder that can properly hold the tool during cutting. 5 Therefore, it is an object of the present invention to provide another tool holder. The introduction focuses primarily on drilling applications, especially in high-speed PCB drilling applications, but a new type of tool holder can be used for other purposes, which is often necessary for use in other cutting devices. . 1 0 [内内] In one aspect, the present invention provides a tool holder assembly including a tool receiving portion and a tool gripping device for grasping a tool housed in the tool receiving portion, and The tool gripping device includes at least one tool grip 15 that is movable between a tool grip position and a tool release position, and a memory metal portion, and the memory metal portion responds to a change in temperature - a controllable transition between the first shape and a second shape and T is configured to act on the grip portion of the tool when the memory metal portion transitions from the first shape toward the second shape The grip portion moves toward the gripping position of the tool. 20 The swash metal portion can directly act on the grip portion of the tool. Preferably, there are a plurality of tool holder body portions. The assembly can include a tool holder body portion, and the at least - tool grip portion can be coupled to the tool holder body portion, and the tool grip portion can be configured to be when the tool grip portion is Tool grip position 6 200831220 When moving between the tool release positions, the body portion of the tool holder can be moved. The V-tool gripping portion can be connected to the tool holder body portion through the respective elastically deformable portions. The holder body portion and the at least-tool grip portion may be made of a dry-type material, and when there are a plurality of tool grip portions, the work portion is a body portion and a plurality of tool grip portions It can be assembled from a single piece (4). The 4~ can be configured such that the deformable portion will be deformed when the at least "guard" gripping portion moves between the gripping position and the guard releasing position. The grip portion of the tool can be more sinful to the axis of the tool holder assembly than the position at the release position. The X-eight grip can be used to hold the body portion of the tool. The axial extension 15 is out. • The 4 tool grip portion can be disposed on the inner side of the body portion of the tool holder. The grip portion of the tool may extend from a radially inwardly large portion of the body portion of the tool along a circumferential edge, wherein the term "longitudinal inward" is understood to mean that the large portion is inwardly Protruding closer to the axis of the implement holder assembly such that the projection "inwardly, protrudes in a radial manner, and the projection does not protrude in a shuttle direction, and the radially inward direction The protrusion may protrude from the tool holder body portion in a radial direction. The tool gripping device may include at least one arm including the tool grip portion and the deformable portion of the 200831220, and the memory metal portion Acting on the arm at a position 'and the position is in or away from the grip portion of the tool. The arm can extend axially from the tool body portion, and The tool portion 5 is axially separated from the tool holder body portion by the deformable portion. The arm can be radially inwardly projecting from the tool body portion and along the circumferential edge. Badly extending around the inner circumference of the tool receiving portion, and the tool is grasped The material and the inward protrusion are separated by the deformable portion along the circumferential edge, and H) the radially inward protrusion may protrude from the body portion of the I holder in a radial direction. The arm may be held by the J1 Having a body portion extending in a direction, and the tool grip portion is radially separated from the main body portion by the deformable portion. 15 The arm may be at an end parallel to the axis of the tool holder assembly Suspended over and the arm can be overhanged from the end transverse to the axis of the implement holder assembly. When there are a plurality of tool grip portions, the majority of the tool grip portions can be spaced apart from each other On the inner circumference of the tool receiving portion. 20 In one set of embodiments, there are two sets of tool grip portions and two tool holder body portions, wherein the first set of tool grip portions can be combined with the first body a portion of the connection, and the second set of tool grip portions are connectable to the second body portion. The two tool holder body portions are axially separable from each other, and the first set of tool grip portions are axially Projecting away from the first tool holder body portion and toward 8 200831220 to the second tool Having a body portion, and the second set of tool grip portions are axially projectable away from the second tool holder body portion and toward the first tool holder body portion. The first set of grip portions can be wrapped around The inner circumference of the tool receiving portion is separated from each other along the circumferential edge of the fifth portion, and the second cylinder grip portion is similarly spaced apart from each other around the inner circumference of the tool receiving portion along the circumferential edge, and the first group of grip portions are circumferentially The rim is disposed between the two gripping portions. Thus, this can be viewed as providing two sets of opposing axially interlocking arms or "fingers" that provide the gripping portions. In another set of embodiments, When there are a plurality of grip portions which are held by the tool holder body portion 10 along the circumferential edge, at least one of them may protrude toward a first circumferential edge and at least one of the others may protrude toward a second, opposite circumferential edge. Moreover, there may be a plurality of pairs of grip portions, and the first grip portions of the pairs protrude toward the first circumferential edge, and the second grip portion 15 of each pair faces the second, It protrudes in the direction of the circumferential edge. In addition, there may be a radially inwardly projecting portion of the body portion of the plurality of tool holders, and each pair of grip portions may be supported by respective radially inwardly projecting portions. The grip portions protruding along the circumferential edge can be separated from each other along the circumference of the inner circumference of the tool receiving portion, and the first grip portions 2 of the pair of grip portions can face each other across a circumferential edge. The second grip portion of the other pair of grip portions. The cross-section of the grip portion taken in a direction perpendicular to the axis of the tool holder assembly may be substantially constant along the axial length of the body portion of the tool holder. 9 200831220 The cross-section of the tool holder body taken in a direction perpendicular to the axis of the tool holder assembly may be substantially constant along the length of the body of the tool holder body portion. The cross-section of the arm of the gripping portion taken in a direction perpendicular to the axis of the tool holder assembly may be substantially constant along the axial length of the body portion of the tool holder. , ^ In addition, there may be a part of the common tool holder connected to all of the aforementioned grip portions. • The stomach at least—the grip portion may have a tool contact surface, and the at least one 〇-extinguish portion may have at least a tool joint edge of the surface of the peach. When the number of kings is combined with the edge material, at least _ can face = a first circumferential direction and surround the inner edge of the tool receiving portion, and the other can face the second, opposite circumferential edge and surround the tool The inner circumference of the storage part. 15 The joint edge of the cookware can be substantially parallel to the edge of the grip portion corresponding to the body portion of the red holder, and the edge of the joint of the domain 4 can be substantially sag. Recording the correspondence with the cut portion of the holder of the I holder Grab the edge of the part. The sea or each grip portion has a memory metal contact surface, and the memory metal contact surface may be located on the opposite side of the grip portion from the tool contact surface. The tool holder assembly can be configured such that when the loaded tool is grasped in the tool portion, the subtraction portion is sandwiched between the memory metal portion and the tool. The tool holder assembly can be configured such that the grip portion is disposed between the metal portion of the magnet and the inner peripheral surface of the tool receiving portion. Also, there may be a plurality of memory metal portions and the or each memory metal portion may be configured to act on each of the grip portions. The or each memory metal portion may be configured to act on each of the grip portions, and the or each memory metal portion 5 may be configured to force the or when the memory metal portion transitions toward the second shape Each grip portion moves toward the axis of the tool holder assembly. The or each memory metal portion may be annular, and when in a ring shape, the metal portion may be configured to surround the ring of the tool holder assembly. Also, there are two axially separated annular memory metal portions. The first annular memory metal portion may be configured to act on the first set of memory metal portions and the second annular memory metal portion may be configured to function when there are two sets of 10 grip portions On the second set of memory metal portions. The first annular memory metal scratch can be disposed toward the second tool holder body portion, and the second annular memory metal portion can be disposed toward the first tool holder body portion. These 15 may indicate that the memory metal portions are configured to act on the grip portions toward their distal ends. The inner part of the weeds can be arranged such that the inner diameter of the ring is greater than the memory metal part in its second shape when the first shape is in the first shape. The structure, when the memory metal portion is held at its rising edge, will squeeze the grip portions into contact with a carrying tool. The two axially separated memory metal portions are capable of squeezing the two axial phases of a load bearing tool, and thus the grip increases the grip. The or each memory metal portion may be elongate and the or each memory metal portion may be oriented axially relative to the tool holder assembly. The or each memory metal portion 11 200831220 may be in the form of a rod and the or each memory metal portion may have a longitudinal axis that is configured to be parallel = the axis of the tool holder assembly. When there are many memory metals: the wound metal parts can be angularly separated from each other around the axis of the tool holder assembly. The or each metal portion of the memory can substantially follow the full length of the grip portion of the crucible 5, and this ensures a good grip on the extended length of the lengthened handle. Each of the δ 丨 丨 金属 metal portions may be configured to act on the two grip portions, and the grip portion such as 兮 φ may be formed by two pairs of separate but adjacent grip portions. The memory metal portion may be disposed in each of the holes 10 in the body portion of the tool holder, and the or each memory metal portion may have the first shape and the second shape at the memory metal portion The shape and size of each cavity are closely fitted. The or each memory metal portion may have a greater thickness in the radial direction of the tool holder assembly than in the first shape, and 15 or each of the memory metal portions may be When the memory metal portion is rotated toward the second shape, the or each grip portion is forced away from the body portion of the tool holder. - the or each memory metal portion can have a tool holder body contact surface, the tool holder body contact surface contacting a surface of the memory metal contact surface of each of the grip portions with respect to the memory metal portion. The memory metal portion 2 ensures that when the memory metal portion is changed toward the second shape, there is a series of mechanical contact between the body portion of the tool holder and the grip portion, so that the memory metal portion Upon transitioning toward the second shape, the grip portion will be driven closer to the axis of the tool holder assembly as the memory metal portion opposes the tool holder body portion. 12 200831220 车家佳地 'The brother recalls that the metal portion is configured to transition to the second shape if the temperature is on the first shape and on a first temperature threshold side, and if in the second The temperature of the shape and on the other side of the second temperature threshold can then transition toward the first shape. Preferably, the memory metal portion 5 is configured to transition toward the second shape at a temperature above the first temperature threshold. Preferably, the memory metal portion is configured to transition toward the first shape at a temperature lower than the temperature threshold of the first one, and the memory metal portion can be grasped at a higher temperature The grip portion moves toward the grasping position of the tool. An external force can be applied to the portion of the memory metal to cause it to return to its first shape at a temperature below the second temperature threshold. This is useful because, typically, during operation, a tool holder assembly will heat up, for example, due to the friction generated by the tool holder at high speeds due to friction or due to other heat sources located inside and outside the mandrel. The reason. Therefore, 'when using the tool holder assembly, the effect of "automatically" grasping the tool can be achieved. This can utilize the existing heat source, that is, using "waste heat, or using a careful supply to the memory metal parts. The tool holder assembly can include at least one fluid passageway for supplying a heat exchange fluid to heat and/or cool the memory metal portion, or at least one of the memory metal portions, and typically the fluid Preferably, the 20 fluid channel comprises at least one channel portion for direct contact between the carried fluid and each memory metal portion, and the memory metal portion may be hollow. Provided in each of the memory metal portions, and an inner wall or a plurality of inner walls of the memory metal portion may define the channel portion. One of the channel portions is defined by an outer wall boundary of each memory metal portion 13 200831220 And each of the memory metal portions may have a groove, and a portion of the groove defines the channel portion. A structure surrounding each of the memory metal portions, such as the tool holder body portion a groove may be included, and a portion of the groove defines a "track portion. Again, the or each memory metal portion: the 5 member 5 is disposed therein" has a definable shape and size 0 The tool holder assembly can be configured to be disposed within a shaft having a bore, and the tool holder body portion can be configured to be disposed within the bore and having a primary engageable with the bore The size of the curved inner surface is closely combined. The 10 gripping garment can be configured to be disposed within the bore of the shaft, i.e., the or each memory metal portion and the or each grip portion can be configured to be disposed within the bore of the shaft. The tool holder assembly can include a collet and the collet can include at least one tool grip portion. The collet may include a plurality of jaw portions, and each of the 15 claw portions includes a tool grip portion, and the collet may include the heat generation

組件。 該筒夾可界定該工具收納部份。 該筒夾可配置成可設置在-筒夾收納部份内，且該筒 夾可設置在一筒夾收納部份内。 20 忒工具持具總成可包含該筒失收納部份，且該筒炎收 納部份可與該工具持具域分離，並且欲收納該工具持具 總成之轴桿可包含該筒夾收納部份。 該筒炎可相對該筒夾收納部份於一用以固持一旋轉用 工作之工《持位置與^具釋放位置之間移動，且該工 14 200831220 具持具總成可包含用以作用在該筒夾上之彈普、 壓該筒夾朝向該工具抓握位置。該彈菁裝置可配 = 該筒夾與該筒夾收納部份之間提供一軸向力。 " 該筒夾可以是-具有一外錐形表面之錐形筒夹，以便 5被收納在-互補錐形内孔中，且該筒夹收納部份可界定出 該互獅軸孔。該工具持具總成可包含_具有—内^之Component. The collet can define the tool receiving portion. The collet may be configured to be disposed within the collet receiving portion, and the collet may be disposed within a collet receiving portion. The 忒 tool holder assembly may include the tube detachable portion, and the tube accommodating portion may be separated from the tool holder, and the shaft to be received by the tool holder assembly may include the folder accommodating Part. The tube inflammation can be moved relative to the collet storage portion between a holding position and a release position for holding a rotating work, and the worker 14 200831220 can have a holding assembly for The collet on the collet presses the collet toward the gripping position of the tool. The elastic crystal device can be equipped with an axial force between the collet and the collet receiving portion. " The collet may be a tapered collet having an outer tapered surface so that 5 is received in the complementary-conical inner bore and the collet receiving portion defines the cross-lion bore. The tool holder assembly can include _with - inner ^

筒夾收納部份，且該内孔具有一呈錐形且與該筒夹之H 形表面互補的部份。 該筒夾與筒夾收納部份之錐形部份可以使得該筒爽相 10對該筒夾收納部份之相對移動使或讓該筒夹之夹爪部份可 朝與》亥_夹之軸線橫交之方向移動，以抓握與釋放一插 入工具。 忒彈黃裝置可偏壓該筒夾相對該筒夾收納部份朝一軸 向移動，使得當該筒夾朝該軸向移動時，該夾爪部份會朝 15 一與該筒夾之軸線橫交之方向移動以抓握一***工具。該 橫交方向可向内朝向該工具持具總成之軸線，且該軸向可 以是一遠離該工具持具總成之工具收納端之方向。 由此可見，通常，當該工具持具總成包含一筒夾時， 違§己憶金屬部份將配置成可作用在該筒夾包含之至少一工 20具抓握部份上，以在該記憶金屬部份由該第一形狀朝該第 二形狀轉變時，使該至少一工具抓握部份朝該工具抓握位 置移動。 該記憶金屬部份對該至少一工具抓握部份之作用力將 加在該筒夾朝該工具固持位置之移動上，通常，在這些實 15 200831220 施例中，該筒夾將在偏壓彈簧裝置之作用下被移動至該工 具固持位置。這可在許多情形下提供一工具之良好抓握 力，但由於目前所使用之小工具直徑與高速，抓握力會變 得不足。此外，工具持具之重f亦需減至最小，以避免誘 5 發動態不穩定性。在利用錐形简夾之工具持具中使用至少 一記憶金屬部份可有助於避免這些“高層次，，問題及/或將重 量減至最小。 該記憶金屬部份可配置成作用在該筒夾之至少一爽爪 部份上’且該記憶金屬部份可直接作用在該至少一爽爪部 10份上，並且該記憶金屬部份可透過至少一中間構件作用在 該至少一夾爪部份上。 該記憶金屬部份可包含一記憶金屬材料之環，且該琿 可環繞該筒夾設置。 、該筒夹可包含該記憶金屬部份，此時，該記憶金屬部 15份可以是一環且可被承載於該筒夾之其餘部份上。The collet receives the portion, and the inner bore has a portion that is tapered and complementary to the H-shaped surface of the collet. The collet portion of the collet and the collet receiving portion may allow the relative movement of the snug phase 10 to the collet receiving portion or allow the collet portion of the collet to be oriented toward The axis moves transversely to grasp and release an insertion tool. The 忒 yellow device can bias the collet to move axially relative to the collet receiving portion such that when the collet moves toward the axial direction, the collet portion will face the axis of the collet Move in the direction of the intersection to grasp an insertion tool. The transverse direction may be inwardly toward the axis of the tool holder assembly and the axial direction may be a direction away from the tool receiving end of the tool holder assembly. It can be seen that, in general, when the tool holder assembly includes a collet, the defying metal portion will be configured to act on at least one of the 20 grip portions included in the collet to The at least one tool grip portion moves toward the tool grip position when the memory metal portion transitions from the first shape toward the second shape. The force of the memory metal portion on the grip portion of the at least one tool will be applied to the movement of the collet toward the holding position of the tool. Generally, in these embodiments, the collet will be biased. The spring device is moved to the tool holding position. This can provide a good grip of a tool in many situations, but the grip force will become insufficient due to the diameter and speed of the currently used tool. In addition, the weight of the tool holder must also be minimized to avoid inducing dynamic instability. The use of at least one memory metal portion in a tool holder that utilizes a tapered clip can help avoid these "high levels, problems, and/or minimize weight. The memory metal portion can be configured to act on the At least one of the claw portions of the collet and the memory metal portion can directly act on the at least one claw portion, and the memory metal portion can act on the at least one jaw through the at least one intermediate member The memory metal portion may include a ring of a memory metal material, and the crucible may be disposed around the collet. The collet may include the memory metal portion, and at this time, the memory metal portion may be 15 parts. It is a ring and can be carried on the rest of the collet.

該記憶金屬部份可配置成在該筒夹之至少一夹爪部份 與該筒夾收納部份之間動作，且該記憶金屬部份可設置在 該筒夾收納部份之徑向内側。 2〇該記憶金屬部份可具有一錐形表面，且該錐形表面配 成面向且互補於該筒夹收納部份之錐形表面。 該記憶麵部份可配置成魏關Μ納部份作用在 之至少—夾爪部份上，域記憶金屬部份可設置在 二:::::徑向外側。該記憶金屬部份可配置成當 —#由該第-形狀朝該第二形狀轉變時，使該 16 200831220 形内孔部份的表面龍工具持具總成之 ，藉此使該至少一工具抓握部份朝該工 a該=憶金屬部份可包含—記憶金屬材料之環，且該環 =繞—夹收納部份設置’而該筒夾收納部份則環繞該筒 爽没置。 鬌The memory metal portion is configurable to move between at least one of the jaw portions of the collet and the collet receiving portion, and the memory metal portion may be disposed radially inward of the collet receiving portion. The memory metal portion may have a tapered surface, and the tapered surface is configured to face and complement the tapered surface of the collet receiving portion. The memory surface portion can be configured such that at least the grip portion is disposed on at least the jaw portion, and the domain memory metal portion can be disposed radially outward of the second :::::. The memory metal portion may be configured to cause the surface of the 16200831220 inner hole portion to be assembled when the first shape is changed toward the second shape, thereby causing the at least one tool The grip portion is toward the work a. The metal portion may include a ring of a memory metal material, and the ring is disposed around the folder storage portion and the collet storage portion surrounds the tube.鬌

筒夾收納部份之錐 軸向徑向向内彎曲 具抓握位置移動。 ±在一組實施例中，當該工具持具總成安裳在-軸桿中 ^亥雜金屬部份設置在_桿與該筒夾_部份之間。 1她另彳面本發明提供—種用以固持一工具之工具持 —成’其包含—設置在—筒夾收納部份内之筒夾及用以 作用在該筒夾上之彈簧裝置，且蘭夾具有至少—工具抓 握。P份並可相對該筒夾收納部份而在—用關持—旋轉用 工具之工具固持位置與該彈簧裝置配置成可將該筒爽朝該 工具固持位置偏壓之工具釋放位置之間移動，X，該工且 持具包含—回應溫度之變化而在-第-形狀與-第二形狀 門可又控制地觀的記憶金屬部份，且該記憶金屬部份 配置成可在該記憶金屬部份朝該第二雜轉變時，作用在 邊至少-卫具抓握部份上，使該抓握部份朝—王具抓握位 置移動。 月.J述任-工具持具總成是—旋轉工具持具總成。 另方面，本發明提供〜種心軸’例如，-空氣軸承 鑽孔心軸，其包含—前述工具持具總成。該心軸可包含-其中安裝有該工具持具總成之軸桿。 種切削裝置，其包含前述心 再一方面，本發明提供〜 17 200831220 5 軸與工具持具總成之其中一者。 該切削裝置可包含一溫度控制機構，且該溫度控制機 構包含用以沿該至少一通道供應熱交換流體以加熱及/或 冷卻該至少一記憶金屬部份之裝置。 該切削裝置可以是一 PCB鑽孔機。 以下將以舉例方式參照添附圖式說明本發明，其中： 第1圖是一鑽孔機一部份的示意圖，且該鑽孔機包含一 • 鑽孔心軸，而該鑽孔心軸包括一承載一工具之工具持具總 成； 10 第2A圖是在第1圖所示之心軸一部份的線II-II上截取 之截面圖； 第2B圖顯示如第2A圖所示之第1圖心軸的相同截面 圖，但沒有多數定位於其中之記憶金屬部份； 第2C圖顯示可在第1圖心軸中使用之另一種形狀之記 15 • 憶金屬部份的截面圖； 第3A圖顯示一類似第2A與2B圖所示者之一具有一工 具持具總成之心軸的截面圖，且其係第1圖所示者的另一種 設計·， 第3B圖顯示與第3A圖相同之截面圖，但具有多數定位 20 於其中之記憶金屬部份； 第4圖顯示一包括另一工具持具總成之心軸一份的示 意截面圖； 第5圖是第4圖所示之心軸一部份之線V-V所截取.的截 面圖； 18 200831220 5 第6A圖顯示一用以與第4與5圖所示之工具持具總成一 起使用之記憶金屬部份的侧視圖； 第6 B圖顯示第6 A圖所示之記憶金屬部份的端視圖； 第7圖顯示包括再一工具持具總成之心軸一份的示意 截面圖， 第8圖顯示一旋轉工具持具之示意截面圖，且該旋轉工 具持具包括一可用於了解又一工具持具總成之錐形筒夾； a 第9圖是又一工具持具總成之前視圖； 第10圖是第9圖所示之旋轉工具持具總成一部份之線 10 X- X所截取的截面圖； 第11圖是沿通過第10圖所示旋轉工具持具總成之線 XI- XI所截取之截面圖； 第12圖是另一工具持具總成之前視圖； 第13圖是沿第12圖之另一旋轉工具持具總成之線 15 -^ ΧΙΠ-ΧΙΙΙ所截取之示意截面圖；及 第14圖是沿通過第13圖所示旋轉工具持具之線 XIV-XIV所截取之截面圖。 【實施方式】 第1圖示意地顯示一包含一心軸S之高速PCB鑽孔機 20 Μ，且該心軸S包含一工具持具總成1。除了該工具持具總 成1以外，該鑽孔機Μ之大部份僅以大致示意之形態顯示。 在第1圖中顯示之工具持具總成1將一工具2固持在一工具 收納部份R中，且該心軸S包含一轴桿3，而該工具持具總成 1安裝在該軸桿3内。在此例中，該軸桿3利用四個空氣承軸 19 200831220 4軸接成可相對該心軸之其餘部份旋轉。 又，设有一馬達5，而該馬達5包含一安裝在該軸桿3 内且環繞疋子線圈52之永久磁鐵部份51，以便以該心軸與 〃持具總成1之主軸為中心驅動旋轉該軸桿3並因此驅動 s %轉該工具持具總成i及所承载工具2。如此，在此心軸中， 有用以相對該心軸S之其餘部份驅動旋轉該軸桿3之〇(：： 驅動馬達，但在其他實施例中可以是一ac驅動器。不過， 忒馬達與在該心軸8中之空氣軸承的結構與操作並不是一 L么月所特別關切者。但是，此時應注意的一點是形成該馬 達5邛伤之永久磁鐵部份51係呈中空圓柱形狀，這表示該 f久磁鐵部份51具有—通過其中心且使空氣可沿該中空轴 桿3内側輸送之空氣通路53 ,而這重要性將在以下說明。在 此亦可叹置一通過該轴桿3被相關永久磁鐵部份所佔據 之區域的空氣通路53且該磁鐵51可具有其他形狀，但是， 15設置一中空圓柱形磁鐵51仍是有利的。 一工具擋止部6設置在該工具持具總成丨遠離***該工 具2之端部的端部，且這工具播止部6螺接於該工具持具總 成1之其餘部份並可用以限制該工具2柄可送入該工具持具 總成1之量。多數孔61形成在該工具擋止部6内且角度地分 20開環繞該工具擔止部6之中心，並且軸向地通過該工具擔止 部。又，這些孔提供一供空氣由該工具擋止部6一侧至另一 侧之通路。 在相對該工具擋止部6之工具持具總成丨另一端處，設 有一用以防止或限制髒污或其他物質由外部進入該工具持 20 200831220 具總成1之端蓋7。該端蓋7包括一圍繞該工具持具總成之細 線配置且拉觸一***工具2之Ο環密封件71，如第1圖所示。 設置這0環密封件71對於防止髒污或其他物質進入亦是有 用的’且亦可在該工具2被***該工具持具總成1時對該工 5具2施加某些抓握力。但是，一旦該軸桿與工具2旋轉至操 作速度後，由該Ο環密封件71所施加之抓握力不足以將該鑽 頭2固持定位。該工具持具總成1提供這主要抓握力之主要 部份將更詳細地在以下說明。The cone of the collet accommodating portion is axially bent inwardly and has a gripping position to move. ± In one set of embodiments, when the tool holder assembly is mounted in the shaft, the metal portion is disposed between the _ rod and the collet _ portion. 1 she is further provided by the present invention, a tool for holding a tool, which comprises a collet disposed in a collet-receiving portion and a spring device for acting on the collet, and The blue clip has at least a tool grip. The P portion is movable relative to the collet receiving portion between a tool holding position of the holding-rotating tool and a tool releasing position of the spring device configured to bias the tube against the tool holding position, X, the tool and the memory metal portion including the response-temperature change and the -first shape and the second shape gate are controllable, and the memory metal portion is configured to be in the memory metal portion When the portion is turned toward the second miscellaneous, it acts on at least the guard grip portion, and the grip portion moves toward the gripping position of the king. Month.J. The task-tool holder assembly is a rotating tool holder assembly. In another aspect, the present invention provides a mandrel', e.g., an air bearing bore mandrel that includes the aforementioned tool holder assembly. The mandrel can include a shaft in which the tool holder assembly is mounted. A cutting device comprising the aforementioned core. In another aspect, the present invention provides one of the shaft and tool holder assemblies of the ~ 17 200831220. The cutting device can include a temperature control mechanism and the temperature control mechanism includes means for supplying a heat exchange fluid along the at least one passage to heat and/or cool the at least one memory metal portion. The cutting device can be a PCB drill. The invention will now be described by way of example with reference to the accompanying drawings in which: FIG. 1 is a schematic view of a portion of a drilling machine, and the drilling machine includes a drilling mandrel, and the drilling mandrel includes a A tool holder assembly carrying a tool; 10 Figure 2A is a cross-sectional view taken on line II-II of a portion of the mandrel shown in Figure 1; Figure 2B shows a portion as shown in Figure 2A 1 is the same cross-sectional view of the mandrel, but there is not a majority of the memory metal portion positioned therein; Figure 2C shows another shape of the shape that can be used in the mandrel of Figure 1 • a cross-sectional view of the metal portion; Figure 3A shows a cross-sectional view of a mandrel having a tool holder assembly similar to that shown in Figures 2A and 2B, and which is another design of the one shown in Figure 1, Figure 3B shows Figure 3A is the same cross-sectional view, but with a plurality of memory metal portions positioned 20 therein; Figure 4 shows a schematic cross-sectional view of a mandrel including another tool holder assembly; Figure 5 is the fourth A cross-sectional view taken by a line VV of a mandrel shown in the figure; 18 200831220 5 Figure 6A shows a use Side view of the memory metal portion used with the tool holder assembly shown in Figures 4 and 5; Figure 6B shows an end view of the memory metal portion shown in Figure 6A; Figure 7 shows A schematic cross-sectional view of a spindle of a further tool holder assembly, Figure 8 shows a schematic cross-sectional view of a rotary tool holder, and the rotary tool holder includes a tool holder assembly for understanding another tool holder assembly Conical collet; a Figure 9 is a front view of yet another tool holder assembly; Figure 10 is a cross-sectional view of a portion of the rotary tool holder assembly 10 X-X shown in Figure 9 Figure 11 is a cross-sectional view taken along line XI-XI of the rotary tool holder assembly shown in Figure 10; Figure 12 is a front view of another tool holder assembly; Figure 13 is along the 12th A schematic cross-sectional view taken of the line 15 -^ ΧΙΠ-ΧΙΙΙ of the other rotating tool holder assembly; and a cross-sectional view taken along the line XIV-XIV of the rotating tool holder shown in Fig. 13 Figure. [Embodiment] FIG. 1 schematically shows a high speed PCB drilling machine 20 包含 including a mandrel S, and the mandrel S includes a tool holder assembly 1. Except for the tool holder assembly 1, most of the drilling machine is shown in a generally schematic form. The tool holder assembly 1 shown in FIG. 1 holds a tool 2 in a tool receiving portion R, and the mandrel S includes a shaft 3 on which the tool holder assembly 1 is mounted. Inside the rod 3. In this example, the shaft 3 is pivoted by four air bearings 19 200831220 4 to be rotatable relative to the remainder of the mandrel. Further, a motor 5 is provided, and the motor 5 includes a permanent magnet portion 51 mounted in the shaft 3 and surrounding the dice coil 52 so as to be driven centering on the spindle and the spindle of the holder assembly 1. The shaft 3 is rotated and thus the s % is driven to the tool holder assembly i and the loaded tool 2. Thus, in this mandrel, there is a cymbal (:: drive motor) for driving the shaft 3 relative to the rest of the mandrel S, but in other embodiments may be an ac drive. However, the 忒 motor and The structure and operation of the air bearing in the mandrel 8 are not particularly concerned with the month. However, it should be noted at this time that the permanent magnet portion 51 forming the motor 5 is in a hollow cylindrical shape. This means that the long magnet portion 51 has an air passage 53 passing through its center and allowing air to be transported along the inside of the hollow shaft 3, and this importance will be explained below. The shaft 3 is surrounded by the air passage 53 in the region occupied by the associated permanent magnet portion and the magnet 51 can have other shapes, but it is still advantageous to provide a hollow cylindrical magnet 51. A tool stop 6 is provided therein. The tool holder assembly 丨 is away from the end of the end of the tool 2, and the tool damming portion 6 is screwed to the rest of the tool holder assembly 1 and can be used to limit the tool 2 handle can be fed The tool holds the amount of assembly 1. Most holes are 61 Formed in the tool stop portion 6 and angularly spaced around the center of the tool holding portion 6 and axially through the tool rest portion. Further, the holes provide a supply of air by the tool stop portion a passage from one side to the other side. At the other end of the tool holder assembly relative to the tool stop portion 6, there is provided a means for preventing or restricting the entry of dirt or other substances from the outside into the tool holder 20 200831220 End cap 7 of assembly 1. The end cap 7 includes a loop seal 71 disposed about the thin wire of the tool holder assembly and pulling an insertion tool 2, as shown in Fig. 1. Setting the loop seal The piece 71 is also useful for preventing dirt or other substances from entering' and can also exert some grip on the tool 2 when the tool 2 is inserted into the tool holder assembly 1. However, once the shaft After the tool 2 is rotated to the operating speed, the grip force exerted by the loop seal 71 is insufficient to hold the drill bit 2. The main part of the tool holder assembly 1 providing this primary grip force will be more detailed. In the following description.

以下請參閱第2A與2B圖，該工具持具總成丨包含—大 10致圓柱形工具持具本體部份11，且在該工具持具本體部份 Π安裝有多數，在此例中為3個記憶金屬部份12。該等記情 金屬部份12呈桿狀且相對該工具持具總成丨之軸線軸向地 定向，並且該等記憶金屬部份互相分開且環繞該工具持具 總成1之軸線角度地分開。 15 20 與該 /、符具本體部份11連接的是三對臂13，且各^ 臂13透過社㈣具本體部純之徑向向内突起部份I 連接該工具持具本料仙H持具本體部份u之〗 些向内突起部份環繞該卫具持具總成丨之⑽相等地 開，因此，在這實施例中，當有三個這種突起部份時， 們互相分開m。。在各射之各臂13沿圓周緣延伸遠離 個向内突起部份lla，因此該等向内突起部份…在這例 中類似於多數將該等臂13連接於社具持具本體部份u 其餘部份的連接片。又，該等f 13與連接片〜沿著該工 持具本體部份11之全長延伸。 21 200831220 括13呈_且其徑向最内部表面…界定出該工具 料:成1之卫具收納部份R的内周緣’整體而言，可看出 用以環繞一所收納工具2之開口套 忒荨，13實際上提供一 筒 H〜成中’該等臂13與玉具持具本體部份11係由-=鋼:單件式材料形成。該等臂13可彈性變形，使得 二牲3遇離該等連接片lla之端部可朝-大致朝向該工 :具總成1之徑向或遠離該工具持具總成丨之軸線的方向 10入工且在操作時各臂13之一遠端13b作為一用以抓握一插 10入Γ具2之工具抓握部份。特別地，各臂之自由端的徑向最 内邊緣13e作為—用以在該卫具被抓握時與-卫具2結合 之工具結合邊緣。 因此在此實施例中可看出有六個工具抓握部份nb及 六個工具結合邊緣13c，此外，該等工具結合邊緣13c之一 15半面向一圓周緣方向且該等工具結合邊緣13c之另一半面 向相反之圓周緣方向。又，這些工具結合邊緣13c隔著在相 鄰對臂13端部之間的圓周緣間隙而互相面對。 在各臂13之各抓握部份13b與各個連接片11a之間，有 將隨著該等臂遠端13b相對於該工具持具總成1軸線向内或 20 向外彎曲而變形之臂的一部份13d。如此，該等臂13包含多 數可彈性變形部份13d。 如第2A圖所示，各記憶金屬部份12具有可大致緊密地 嵌合一設置在該工具持具本體部份11内之對應空洞之形狀 與尺寸。對第2A圖所示之記憶金屬部份12而言，這緊密嵌 22 200831220 合之一例外處位於各記憶金屬部份12遠離各臂13之邊緣 處，且在此處有一在該記憶金屬部份12與該環繞工具持具 本體部份11之間提供一通道12a的倒角。又，這些通道12a 亦提供一用以供空氣通過該工具持具總成1且特別接觸該 5 等記憶金屬部份12之通路。 在各連接部1 la與各個記憶金屬部份12間之各連接部 11a的各侧上亦有多數切口 llt>，且這些切口 lib亦提供一用 以供空氣通過該工具持具總成丨且亦接觸該記憶金屬部份 12之一表面之另一通路。 10 在前述倒角邊緣之間，各記憶金屬部份12之一表面12b 接觸3工具持具本體部份11，且各記憶金屬部份12之一相 對表面12c分別接觸兩臂13。在此應注意的是這與各記憶金 屬部份12接觸之兩臂13是相鄰的，但被不同之連接部lla支 持。 15 第2C圖顯示通過另一種形狀之記憶金屬部份12,的截 面圖，且該記憶金屬部份1.2,可用以取代第2A圖所示之記憶 金屬部份12。在此，在遠離接觸該等臂13之表面12c，的表面 中，該記憶金屬部份12’具有一U形切口或溝槽12a，。這另一 記憶金屬部份12’亦具有彎曲外緣而非在第2A圖中提及之 20倒角外緣，且該另一記憶金屬部份12,在這些區域中與該工 具持具本體部份11緊密接觸。利用這另一記憶金屬部份 12’，可由該切口 12Y提供一通過該工具持具總成丨之空氣通 道。 如第1圖所示且由第2A圖可知，當一工具2被承載於該 23 200831220 工具持具總成1之工具收納部份中時，各们3之抓握部份 13b被夾持於該工具2與各記憶金屬部份12之間。此外，在 該工具持，、本體耗11、該記憶金屬部份12、該抓握部份 i3b及m抓握之所承紅具2之間有—連串實體接觸。 除了由在該端蓋7中之〇環密封件71所提供的低抓握力 以外亦可藉由操作§亥工具持具總成i且特別操作該等臂B 與記憶金屬部份12來將一所承載工具抓握在該心軸S中。該 工具持具核部份U、域金屬部份12及臂13-起作為抓 握裝置。Referring to Figures 2A and 2B below, the tool holder assembly includes a large cylindrical tool holder body portion 11 and a majority of the body portion of the tool holder is mounted, in this case 3 memory metal parts 12. The erotic metal portions 12 are rod-shaped and axially oriented relative to the axis of the tool holder assembly ,, and the memory metal portions are separated from one another and angularly spaced about the axis of the tool holder assembly 1 . 15 20 is connected to the main body portion 11 of the yoke, and the three arms 13 are connected to the tool holder by means of a solid radially inwardly protruding portion I. The inwardly protruding portions of the holding body portion u are equally opened around the guard holder assembly (10), and therefore, in this embodiment, when there are three such protruding portions, they are separated from each other m. . Each of the arms 13 extends along the circumferential edge away from the inwardly projecting portion 11a, such that the inwardly projecting portions are similar to the majority of the arms 13 in this example. u The rest of the connecting piece. Further, the f 13 and the connecting piece are extended along the entire length of the main body portion 11 of the tool. 21 200831220 includes 13 and its radially innermost surface ... defines the tool material: the inner circumference of the accommodating portion R of the fulfilment 1 as a whole, the opening for surrounding the accommodating tool 2 can be seen The casing, 13 actually provides a cylinder H~成中' the arms 13 and the jade holder body portion 11 are formed of -= steel: a one-piece material. The arms 13 are elastically deformable such that the ends of the two pieces of the connecting piece 11a can be oriented toward - generally toward the axis of the assembly: radially or away from the axis of the assembly of the tool holder 10 is machined and in operation a distal end 13b of each arm 13 acts as a gripping portion for grasping a tool inserted into the cookware 2. In particular, the radially innermost edge 13e of the free end of each arm acts as a tool-binding edge for engaging the -guard 2 when the harness is grasped. Thus, in this embodiment, it can be seen that there are six tool grip portions nb and six tool joint edges 13c, and further, one of the tool joint edges 13c faces a circumferential direction and the tool joint edges 13c The other half faces in the opposite circumferential direction. Further, these tool-joining edges 13c face each other across the circumferential edge gap between the ends of the adjacent pair of arms 13. Between each grip portion 13b of each arm 13 and each of the connecting pieces 11a, there is an arm that will be deformed as the arm distal ends 13b are bent inward or outward 20 with respect to the tool holder assembly 1 axis. Part of the 13d. Thus, the arms 13 include a plurality of elastically deformable portions 13d. As shown in Fig. 2A, each of the memory metal portions 12 has a shape and size that fits substantially correspondingly into a corresponding cavity provided in the body portion 11 of the tool holder. For the memory metal portion 12 shown in FIG. 2A, the tightly embedded 22 200831220 is located at an edge of each memory metal portion 12 away from each arm 13 and has a memory metal portion therein. A portion 12 is chamfered between the portion 12 and the wrap tool holder body portion 11. Moreover, the passages 12a also provide a passage for air to pass through the tool holder assembly 1 and to specifically contact the memory metal portion 12 of the fifth. There are also a plurality of slits 11t> on each side of each of the connecting portions 11a and the respective connecting portions 11a between the respective memory metal portions 12, and these slits lib also provide a means for air to pass through the tool holder assembly. Another path of the surface of one of the memory metal portions 12 is also contacted. 10 Between the chamfered edges, one surface 12b of each of the memory metal portions 12 contacts the tool holder body portion 11, and one of the opposite surface 12c of each of the memory metal portions 12 contacts the arms 13. It should be noted here that the two arms 13 which are in contact with the respective memory metal portions 12 are adjacent, but are supported by the different connecting portions 11a. 15 Figure 2C shows a cross-sectional view through another shape of the memory metal portion 12, and the memory metal portion 1.2 can be used in place of the memory metal portion 12 shown in Figure 2A. Here, the memory metal portion 12' has a U-shaped slit or groove 12a in a surface away from the surface 12c contacting the arms 13. The other memory metal portion 12' also has a curved outer edge instead of the 20 chamfered outer edge mentioned in FIG. 2A, and the other memory metal portion 12, in these regions, with the tool holder body Part 11 is in close contact. With the other memory metal portion 12', an air passage through the tool holder assembly 丨 can be provided by the slit 12Y. As shown in FIG. 1 and as seen from FIG. 2A, when a tool 2 is carried in the tool receiving portion of the 23 200831220 tool holder assembly 1, the grip portions 13b of the respective members 3 are clamped to each other. The tool 2 is interposed between each of the memory metal portions 12. In addition, there is a series of physical contact between the tool holder, the body consumption 11, the memory metal portion 12, the grip portion i3b, and the red member 2 gripped by the m. In addition to the low grip force provided by the annulus seal 71 in the end cap 7, a handle can be operated by operating the arm assembly i and operating the arm B and the memory metal portion 12 in particular. The carried tool is grasped in the mandrel S. The tool holds the core portion U, the domain metal portion 12 and the arm 13 as a gripping device.

10 在此應注意的是回應溫度改變形狀，即，進行一變態 係某些種類之圮憶金屬（例如，某些由包含鎳與鈦之合金— 所謂’NiTiNOL合金’製成之記憶金屬）的習知特性。這形狀之 變化是由於在麻田散鐵與沃斯田鐵結構之間變態或相變化 所k成 ’ 揭露於’例如，“Hodgson, Darel E·, and Jeffrey 15 W. Brown，Using Nitinol alloys· San Jose，CA: Shape Memory /wc· %⑽”中。在記憶金屬技術中的標準實務 是將記憶金屬之某些部份“排序(train)”，以在所需溫度下進 行所需之形狀變化。 在此裝置中所使用的是多數已適當排序之記憶金屬塊 20 12 〇 在該工具持具總成1中，三個長形桿狀記憶金屬材料12 被設計且排序成當在一具有一第一形狀之第一狀態而使該 等臂13在一如第2A圖所示之釋放非變形狀態時，可緊密嵌 e位於该工具持具本體部份11内之各空洞。此外，它們係 24 200831220 被排序成可在超過一臨界溫度時轉變成一第二形狀。另 外’該等記憶金屬部份12係被選定且排序成在操作鑽孔機 期間由於該軸桿3、工具2及工具持具總成丨之高速旋轉且如 有必要，如以下所詳述般地由一外部來源另外供應熱而加 5熱該心軸8之組件且特別是該等記憶金屬部份12,超過這臨 界溫度。該等記憶金屬部份12係排序成在，達到較高溫度 而呈第二形狀時，該等記憶金屬部份12之徑向厚度(相對於 Φ 該工具持具總成1之軸線)大於其中該等記憶金屬部份12位 於該第一（低溫)形狀時之第1與2人圖所示者。 在該等記憶金屬部份12之徑向厚度增加的工具持具總 成1中，這可用以使該等臂13變形，且特別地使各臂13之抓 握邻伤13b朝該工具持具總成1之軸線向内移動。這表示該 等抓握部份13b與工具結合邊緣13c會被壓抵於且抓握一插 入工具2，因此，當該等記憶金屬部份12之溫度上升且進行 5 一如此改變形狀之轉變時，可達成抓握一***工具之目的。 ® 利用相同特性，當該等記憶金屬部份12之溫度下降回 到一對應臨界溫度以下時，該等記憶金屬部份12可轉變回 到其初始形狀且該等臂13可放鬆回到第2A圖所示之位置， 使得它們不再抓握該工具。以最佳操作而言，可能會需要 °某些外力來迫使該等記憶金屬部份12回到其初始形狀—這 可利用在該等臂中之彈性或在由某些其他機構來提供。此 時，該工具可由該工具收納部份移除。 雖然該等記憶金屬部份12之所需加熱可因軸桿3加速 $疋轉而發生之熱來達成，但仍可能需要如前述般增加這加 25 200831220 熱效應且亦加速自然冷卻程序，使一工具2可由該工具持具 總成1更快速地釋放。 在此應注意的是，在此例中，該心軸8是一空氣轴承且 因此在該心軸s處已可供應空氣。在此裝置中，由於它經由 5 —包含通過該永久磁鐵51設置之通路53的空氣通道、在該 工具擋止部6中之孔61、及前述與該等記憶金屬部份12接觸 之通道12a與lib來連通，這空氣之一部份將流向該工具持 具總成1且特別是該等記憶金屬部份12。接著，這空氣由該 心軸S之鼻部釋出。該空氣可在朝該等記憶金屬部份12運送 10前被加熱或冷卻，且傳送熱空氣有助於加熱該等記憶金屬 部份12,而傳送冷空氣（或大氣)有助於冷卻該等記憶金屬部 份12 〇 當需要使更換工具成為一製造操作之一部份時，提供 快速加熱及/或冷卻特別有幫助。 第3A與3B圖顯示通過一包括類似於第1至2B圖所示之10 It should be noted here that in response to temperature changes in shape, that is, a metamorphosis is a type of memory metal (for example, some memory metals made of alloys containing nickel and titanium - so-called 'NiTiNOL alloys') Conventional characteristics. This change in shape is due to metamorphosis or phase change between the granulated iron and the Worthite iron structure. [For example, "Hodgson, Darel E., and Jeffrey 15 W. Brown, Using Nitinol alloys· San Jose, CA: Shape Memory /wc· %(10)". The standard practice in memory metal technology is to "train" some parts of the memory metal to make the desired shape change at the desired temperature. In this device, a plurality of properly ordered memory metal blocks 20 12 are used. In the tool holder assembly 1, three elongated rod-shaped memory metal materials 12 are designed and ordered to have a The first state of a shape allows the arms 13 to be tightly embedded in the voids in the body portion 11 of the tool holder when released in a non-deformed state as shown in FIG. 2A. In addition, they are ordered 24 200831220 to be converted into a second shape when the temperature exceeds a critical temperature. In addition, the memory metal portions 12 are selected and ordered to rotate at high speeds during operation of the drill due to the shaft 3, the tool 2 and the tool holder assembly, and if necessary, as detailed below. The additional supply of heat from an external source adds 5 heat to the components of the mandrel 8 and in particular the memory metal portion 12 beyond this critical temperature. The memory metal portions 12 are ordered such that the radial thickness of the memory metal portions 12 (relative to the axis of the tool holder assembly 1) is greater than when the second temperature is reached. The first and second figures of the memory metal portion 12 are located in the first (low temperature) shape. In the tool holder assembly 1 in which the radial thickness of the memory metal portions 12 is increased, this can be used to deform the arms 13 and, in particular, to bring the grips 13b of each arm 13 toward the tool holder. The axis of assembly 1 moves inward. This means that the gripping portions 13b and the tool engaging edge 13c are pressed against and grip an insertion tool 2, so that when the temperature of the memory metal portions 12 rises and the shape changes such that the shape is changed , can achieve the purpose of grasping an insertion tool. Using the same characteristics, when the temperature of the memory metal portion 12 drops back below a corresponding critical temperature, the memory metal portions 12 can be converted back to their original shape and the arms 13 can be relaxed back to the 2A The position shown in the figure is such that they no longer grip the tool. In terms of optimal operation, some external force may be required to force the memory metal portions 12 back to their original shape - which may be utilized in the flexibility of the arms or provided by some other mechanism. At this time, the tool can be removed by the tool storage portion. Although the required heating of the memory metal portions 12 may be achieved due to the heat generated by the shaft 3 accelerating the enthalpy, it may still be necessary to increase the thermal effect of the 25200831220 and also accelerate the natural cooling process as described above. The tool 2 can be released more quickly by the tool holder assembly 1. It should be noted here that in this case the mandrel 8 is an air bearing and therefore air is already available at the mandrel s. In this device, since it passes through 5 - an air passage including a passage 53 provided through the permanent magnet 51, a hole 61 in the tool stopper portion 6, and the aforementioned passage 12a in contact with the memory metal portions 12 In communication with lib, a portion of this air will flow to the tool holder assembly 1 and, in particular, the memory metal portion 12. Then, this air is released from the nose of the mandrel S. The air may be heated or cooled prior to transporting 10 to the memory metal portions 12, and the transfer of hot air helps to heat the memory metal portions 12, while the delivery of cold air (or atmosphere) helps to cool the air. Memory Metal Portion 12 When providing a replacement tool as part of a manufacturing operation, providing rapid heating and/or cooling is particularly helpful. Figures 3A and 3B show the passage of a similar one shown in Figures 1 to 2B.

工具持具總成1之心轴义的截面，且由於該心軸S，類似於第工 至2B圖所示者，所以將不會詳細說明，而是僅說明有關之 差異。在此應注意的是該專臂13’具有與第2B圖所示者稍微 不同之形狀，且具有形狀配合該等記憶金屬部份12”與它們 20 接觸之部份的表面。該等記憶金屬部份12’，具有不门之开/ 狀，且在此該等記憶金屬部份12”亦為長形桿狀構件，伸在 负一通過各記憶 金屬部份12”中心之中央圓柱形通道12a”，且這通道部严亦 作為加熱/冷卻空氣可供應通過之一通道。第圖顯厂、1、、 26 200831220 5 成1之工具持具本體部份η，但該記憶金屬部份12”未定位 於其中。 第4與5圖顯示另一類似於有關第1至2Β圖所述者之工 具持具總成Γ，但該工具持具總成1，配置成不同地安裝在一 轴杯3内且亦具有不同形狀之記憶金屬部份12’’’及收納空 洞。其中一記憶金屬部份12”，顯示在第4圖中且獨立地顯示 在第6Α與6Β圖中，在這總成丨，中，在收納該記憶金屬部份 ❿ 1之空洞中或在該等記憶金屬部份12”，本身内未設置用 以加熱/冷卻空氣之特定通道(但在該等臂Π之區域中仍有 10 切口）。但是，如第5圖所示，用以加熱/冷卻空氣之通道係 設置成多數穿過該工具持具本體部份11設置之專用軸孔 14 ’且該等軸孔14在該等空洞之間角度地分開，以收納該 等記憶金屬部份12，，，。 15 • 第7圖顯示包括又一工具持具總成1〇1之另一心軸的一 部份，且這工具持具總成101以一類似於先前有關第1至6之 說明之方式作用，其中記憶金屬部份與抓握部份被用來固 持一工具，但其結構相當不同。在此，該工具持具總成101 亦安裝在一可在第1圖所示之相同種類心轴中使用的軸桿3 中。但是，在此有兩個大致呈圓柱形之工具持具本體部份 20 111，且該等工具持具本體部份111互相軸向地分開並且各 承載三個軸向突出臂或指113。在第7圖中只可看到所有六 個臂113中的兩個，且在第7圖所示之方位中，該最上臂113 連接於距離該總成101之收納端最遠的工具持具本體部份 111，且最低之臂113連接於位在該總成101之收納端處之工 27 200831220 具持具本體部份111。 又，一工具擋止部106設置且安裝在其中一工具持具本 體部份111中。 在各本體部份1Π上之臂113係等角度地分開環設在該 5 總成101之工具收納部份R之内周緣上，且在一本體部份ιη 上之臂113與在另一本體部份上之臂113互鎖。如此，如果 一工具要通過該工具收納部份R之内周緣，則該工具會先通 過與該荨工具持具本體部份111之第一個連接之臂η]並 接著通過一與該等工具持具本體部份nl之第二個連接之 10 1113，餘此類推。各臂113亦具有一工具接觸表面11%及 一對工具結合邊緣（圖未示），且環繞六個臂113的是一對轴 向分開之記憶金屬部份112。在這總成中，該等記憶金屬部 份112呈環狀，且該等臂113與工具收納部份&通過各環中 〇 15 又，該等記憶金屬部份112之尺寸與排序係使得在呈第 一形狀時該等臂113位於一放鬆狀態而可導入與移除一工 具，但是當在超過一特性溫度之第二形狀時，該等記憶金 屬部份112作用在該等臂113上而使它們與一***工具抓握 接觸。在此總成中，當該環狀記憶金屬部份112呈第二形 20狀，且各記憶金屬部份112之環的内徑比在該第一形狀時更 小。如此，當在該第二形狀時，各環狀記憶金屬部份112可 用以朝該工具持具總成101之軸線向内擠壓該等臂113。該 等％狀記憶金屬部份112之第一個位在第一組臂113之自由 鳊且與該第二工具持具本體部份111相鄰，而另一記憶金屬 28 200831220 部份112則位在第二組臂出之自由端處且與該第〆工具持 具本體部mil對應地相鄰。這表示各記憶金屬部份112將 會使该等臂113在其本身區域中之自由端比在該等臂113與 在該區域中之各個玉具持具本體部份m相鄰結合之端部 5更為彎曲，且這在位於該工具收納部份内之兩轴向分開位 置處且因此在-所承載工具上提供更大之抓握力。 該等臂之自由端113b作為抓握部份。 又’違等臂1U可隨著各臂作為一可變形部份之部份 113d彈性地變形。 0 等丨113與各個工具持具本體部份111結合，且該工 具持具本體部份111可由一單件式材料製成。 由此可知在各臂113相對側上之工具結合邊緣（圖未示） 朝不同圓周緣方向面向該工具收納部份R之内周緣且因此 朝相反方向咬入一被抓揾工具中。 15 又，該等記憶金屬部份112之加熱亦以相同之方式達成 且加熱及/或冷卻可以是輔助的。 另外，當一所承載工具被抓握時，該等工具抓握部份 113b亦被夾持在各記憶金屬部份與該工具之間。 在某些替代例中，除了輸送熱空氣以外，亦可使用其 20他機構來達成加熱之目的一亦即，可設置其他熱源。 在岫述工具持具總成卜1’與101中，用以在一工具上提 供抓握力之力（除了在以一相當低速度或當停止時以外）係 由作用在各個抓握部份上之各個記憶金屬 部份 12、12’、 12、12與提供。但是，本發明人已了解到除了這在一 29 200831220 同撼a上提供主要抓握力源的機構以外，亦可使用相 抟呈由心在％同一習知錐形筒夾工具持具般操作之工具 持具中提供一輔充抓握力。 ι〇 15 2〇 呈=8圖顯不_先前錐形筒夹工具持具之例，且該工具持 、，用乂收納與固持-工具(圖未示)之錐形筒夾 卫且叙具設置在—具有—内孔之軸桿部份1002， 而該内孔具有一與在該錐形筒夾1〇〇1上之外錐形互補之錐 形。在該錐形筒夾1001之後方處，設有一固定在該錐形筒 ^1001之主要本體上的尾部聰且該尾部刪承载一筒 & „亥同官刚4具有一肩部⑽如，且該肩部剛如面 向其中設有該錐形筒夾職之軸桿部份職的各個肩部 1002二在這兩肩柳〇4a、職a之間設有一彈簧組鹏(在 這先前工具持具總成中包含多數波形彈簧，但在其中實施 方式中可包括螺旋彈箐、—單—波形彈菁等）。 操作時，當欲將-工具***該錐形筒夾麵時，該筒 夾1001被推出該錐形孔’即朝左方推出，且該工具持具呈 第8圖所不之方位。這通常是利用一推動該尾部筒管 謂4後方之推桿致動器來達成，且這使該筒夾之夾爪可採 取-可輕易***-工具之靜止位置。接著，停止該推桿致 動器對該尾部1003/筒管1004之作用，使該錐形筒爽臟可 在該等彈簧1005之作用下被拉回到該軸桿部份1〇〇2之互補 錐形部份中。當這發生時’該等錐形部份之交互作用將使 該錐形筒夾1001之夾爪可被迫結合接觸一所承載工具。 在說明過基本結構與這種錐形筒夾型工具持具之工作 30 200831220 方式後，以下將綱實施本糾之兩娜筒^具持具總 成。 第9、10與11圖顯示一實施本發明之第一錐形筒夾工具 持具總成201。 ' 為了清楚地顯示，第9、1G與_顯示並未完整地顯示 該工具持具總成2(H。特職，對應於第8圖㈣之錐形筒 夾工具持具狀彈餘⑽5、尾部刪及筒管麵的零件 由第1〇圖中之工具持具總成加略去。但是，在此應了解的 是這些元件可触於第8_讀且可達成相同之功能。 10 15 20 在第9、ίο與11圖中顯示之工具持具總成2〇1的其他零 件係在本發财較相關者。所示之卫具持具總·丨係以與 有先前有關第2至7圖說明之卫具持具總成㈣之方式安裝 在一轴私3中’ s然’這工具持具總成2〇1可以安裝在第1圖 所示高速PCB鑽孔_巾。獅之卫具持㈣成加在其各 個工具收納部份中承载_工具2 ’且該筒失c界定出各個工 具收納部份。該筒紅係設置在一軸桿***物231中，且該 軸桿插人物231在這實施财是紅具持具總成2G1之一^ 件並且配置成可安裝在該軸桿3(如圖所示）。該軸桿***物 231作為-筒夾收納部份，且該筒夾#有—支持多數(在這 實施例中為六個）夹爪部份213之本體部份2ιι，且各失爪部 份213之一部份作為用以抓握該***工具之工具抓握部 份。在該等夾爪部份213四週，在一收納凹部中設有一環狀 部份之記憶金屬材料212。該記憶金屬部份212與各失爪部 份2i3之鼻部213a置於該軸桿***物231之内孔的錐形部份 31 200831220 中，且該内孔之錐形部份作為一筒夾收納部份。該等鼻部 213a與記憶金屬部份212—起形成一與該軸桿***物231之 内孔之内錐形互補的外錐形，且該軸桿***物Mi包含一設 置在該***物231之外彎曲表面上的應力釋放凹部23u，並 5且該***物231面向它***其中之軸桿3，而這應力釋放凹 部231a位在該記憶金屬部份212之區域中。 該轴桿***物231之後方或最内側部份具有一平面而 非錐形内孔，且這可配合該筒夾c之後方或最内側部份。各 夾爪部份213在該記憶金屬部份212之相對端處具有一支持 10部份213b而非該鼻部213a，且該等支持部份以补設置在該 軸桿***物231内孔之平面部份内並且與這表面滑動接 觸。一支持部份232設置在該軸桿***物231與該筒夾匚之本 體部份211之間，使得該筒夾〇沿著全長受到該輛桿***物 231支持以抵抗離心作用。 15 由此可知這種工具持具總成201可以與一陶瓷軸桿3一 起使用，且此時該應力釋放凹部231a係作為特殊用途。 在操作時，當欲將一工具2載入該工具持具總成2〇1中 時，以與先前第8圖說明相同之方式，例如，利用一推桿， 施加一力量至該筒夾c之後方，將它推出該軸桿***物231 20之錐形部份且使該等夾爪部份213可返回一該工具可相當 自由地***與取出之靜止位置。當欲抓握一旋轉用工具 時，解除這作用在該筒夾c上之力量，使得該筒夹c被彈箬 (圖未示）拉回至該軸桿***物231中之錐形部份中，因此迫 使該等夾爪部份213與該工具抓握接觸。 32 200831220 此時，該錐形筒夾c工具持具201之行為基本上是習知 的，且在咼速及/或具有小軸桿直徑時，由這種機構提供在 該所承載工具上之抓握力可能會不足。但是，該旋轉工具 持具總成201亦包括可作用在該等夾爪部份213上之記憶金 屬部份212,以增加在一所承載工具上之抓握力。 以與先前有關第2至7圖所示之工具持具總成之說明相 同之方式，該記憶金屬部份212具有一特殊方式之尺寸與排 序。在此例中，當在一第一形狀時，該記憶金屬部份212未 在该等夾爪部份213上施加特別的力量，且該抓握力係利用 該等夾爪部份213之鼻部213a來達成，而該等夹爪部份213 係因與該軸桿***物231之内錐形表面接觸而被迫朝向該 工具持具總成之軸向移動。但是，該記憶金屬部份212在採 用高於該特性溫度之第二形狀時，該記憶金屬部份212作用 在该等夾爪部份213上以增加在該等夾爪部份213與該所承 栽工具2之間的抓握接觸力。因此，特別是在該工具持具總 成201中，该圯憶金屬部份212係配置成使得該環狀記憶金 屬部份212之内徑在該記憶金屬部份位於第二狀態時小於 在它位於該第一狀態時。 §忒轉全叙生4，意外地或經設計地，該記憶金屬部 份之外徑將會增加而可對該夾爪部份213之内錐形部份施 力°更多力量。因此’該記憶金屬部份212可頂抵該表面且這 會促成抓握該JL具2。但是，這作用亦可能會增加在收納於 礒工具持具總成201内之軸桿3上的應力。因此，該應力釋 故凹部231a設置成可防止該力以可能會破壞鄉桿之方式 33 200831220 作用在該軸桿上，特別是當雜桿3為-喊轴桿時。 可看*，在巾，該記齡屬物12係被 该同夹C之主要部份承载且可被視為該筒紅本身的^ 5 《12、13與14圖示實施本發明之另—錐形卫具持1始 :Γ ’且該工具持具總成301具有與前-說明者的某些相 又筒夾c亦设置在一作為一筒央收納部份之輛桿插 入物331内’且雜桿插人物331係配置成可安裝在例如一 Π)種第！圖所示之機器M之軸桿3中。該筒紅提供一用以固持 一工具2之工具收納部份，且雖然未顯示在第12、13或Μ圖 ^在此亦設有—用以作用在該筒夾c後方之彈簧結構，使 韻夾(:退回人該軸桿插人物331巾並抓握—所承載工具。 4靖夾C亦包含多數(在這實施例中為六個）爽爪部份阳， I5且各夾爪#伤313包含一工具抓握部份。此外，這些失爪部 伤313在一般條件下，將透過該軸桿***物331之内錐形份 與忒筒夾c之外錐形部份在該等夾爪部份313之區域中之交 互作用且在彈簧（圖未示）之作用下被迫抓握接觸該所承載 工具2。但是，在此，一記憶金屬部份312設置在該軸桿插 2〇入物331之錐形内孔外部，且該記憶金屬部份312呈桿狀並 且被承载在該軸桿***物331上，以環繞該筒夾收納部份。 又’在這工具持具總成301中，抓握一***工具2與釋 放該***工具2可以習知方式利用該等交互作用錐形部份 及該彈菁之作用來達成，但亦可利用該記憶金屬部份312提 34 200831220 供另外之抓握力。此外，該記憶金屬部份312具有可得到所 需結果之適當尺寸與排序。在該工具持具總成3〇1中，這另 外的抓握力係利用被配置成可透過該軸桿***物231之臂 而作用在該等夾爪部份313的記憶金屬部份312來達成。特 5別地，當該記憶金屬部份312位於一第一狀態時，它不會對 該軸桿***物331之錐形筒夾收納區域之壁施加特別之力 量。但是，當該記憶金屬部份312轉變成其第二形狀時，它 配置成使得該轴桿***物331之這些壁部被迫朝該工且持 具301之軸線移動，因此沿著其長度之一部份或全部增加該 10 錐形部份之角度及/或減少該内孔之内徑，以增加作用在該 等夾爪部份313上之力，並因此增加作用在該所承載工具2 上之力。在這實施例中，該記憶金屬部份312亦可排序成當 它由該第一形狀轉變至該第二形狀時，減少該環狀記憶金 屬部份312之内徑。當這發生時，該記憶金屬部份312之外 15徑可意外地或經設計地增加，且因此該記憶金屬部份312可 頂抵它安裝於其中之軸桿3的内表面。若該軸桿3係由如鋼 等適當材料製成，則這不應會出現任何結構上的問題。在 這實施例中，可以看出該記憶金屬部份312間接地，即，透 過該轴桿***物331之壁部作用在該等抓握部份313上。 20 在此可了解的是先前有關提供加熱及/或冷卻以致動/ 停用該等記憶金屬部份的說明亦適用於第9至μ圖所示之 工具持具201、301。 在此應注意的是在各前述結構中，該工具持具總成係 安裝在一軸桿内，且係（或可）再軸接於一心軸/主要本體之 35 200831220 轴承。因此，相對於分開之方式，可提供其中該工且持呈 總成事實上成為該軸桿之一部份之整體軸桿方式。該工I 持具總成可以永久性地安裝在各個轴桿中，且在這些永久 性安裝中可使用例如黏著劑及/或焊料等。 5 【圏式簡單說明】 • 第1 ®是—鑽孔機一部份的示意圖，且該鑽孔機包含一 .、 觀心轴，而該鑽孔心軸包括-承載-工具之工具持具總 φ 成； 第2A圖疋在第1圖所示之心軸一部份的線π_η上截取 10 之截面圖； 第2Β圖顯示如第2Α圖所示之第i圖心軸的相同截面 圖，但沒有夕數定位於其中之記憶金屬部份； 第2C圖顯示可在第1圖心軸中使用之另一種形狀之記 憶金屬部份的戴面圖； 15 第3A圖顯示一類似第2A與2B圖所示者之一具有一工 • 具持具總成之心軸的截面圖，且其係第1圖所示者的另一種 〜 設計； 第3B圖顯示與第3A圖相同之截面圖，但具有多數定位 於其中之記憶金屬部份； 2〇 第4圖顯示一包括另一工具持具總成之心軸—份的示 意截面圖， 第5圖是第4圖所示之心軸一部份之線V-ν所戴取的截 面圖； 第6A圖顯示一用以與第4與5圖所示之工具持具總成一 36 200831220 起使用之記憶金屬部份的側視圖； 第6B圖顯示第6A圖所示之記憶金屬部份的端視圖； 第7圖顯示包括再一工具持具總成之心軸一份的示意 截面圖； 5 第8圖顯示一旋轉工具持具之示意截面圖，且該旋轉工 具持具包括一可用於了解又一工具持具總成之錐形筒夾； 第9圖是又一工具持具總成之前視圖； 第10圖是第9圖所示之旋轉工具持具總成一部份之線 X- X所截取的截面圖； 10 第11圖是沿通過第10圖所示旋轉工具持具總成之線 XI- XI所截取之截面圖； 第12圖是另一工具持具總成之前視圖； 第13圖是沿第12圖之另一旋轉工具持具總成之線 XIII- XIII所截取之示意截面圖；及 15 第14圖是沿通過第13圖所示旋轉工具持具之線 XIV- XIV所截取之截面圖。 【主要元件符號說明】 11，111…工具持具本體部份 11a···向内突起部份；連接片 11b···切口 12,12，12，12”’···記憶金屬部份 12a’…切口或溝槽’ 12a”…中央圓柱形通道 12c’…表面 1，1，101…工具持具總成 2···工具；鑽頭 3…轴桿 4· · ·空氣承轴 5.. .馬達 6，106…工具擋止部 7.. .端蓋 37 200831220The tool holder has a spindle-shaped section of the assembly 1, and since the mandrel S is similar to that shown in the figure 2B, it will not be described in detail, but only the relevant differences will be explained. It should be noted here that the arm 13' has a shape slightly different from that shown in Fig. 2B and has a surface that is shaped to fit the portions of the memory metal portions 12" that are in contact with them 20. The memory metal The portion 12' has an open/shaped opening, and wherein the memory metal portion 12" is also an elongated rod-like member extending in a central cylindrical passage through the center of each memory metal portion 12" 12a", and this channel portion is also supplied as a heating/cooling air through one of the channels. The first figure shows that the tool holder has the body part η, but the memory metal part 12" is not positioned therein. Figures 4 and 5 show another similar to the first to second figures. The tool holder assembly assembly, but the tool holder assembly 1 is configured to be mounted differently in a shaft cup 3 and also has a memory metal portion 12"" of different shapes and a receiving cavity. a memory metal portion 12", shown in Fig. 4, and independently shown in Figs. 6 and 6, in which the space in the memory metal portion ❿ 1 is accommodated or in the assembly The memory metal portion 12" itself is not provided with a specific passage for heating/cooling air (but there are still 10 slits in the area of the arm ridges). However, as shown in Fig. 5, for heating/cooling The air passage is disposed in a plurality of special shaft holes 14 ′ disposed through the tool body portion 11 and the shaft holes 14 are angularly separated between the holes to receive the memory metal portions 12, ,,. 15 • Figure 7 shows another mandrel that includes another tool holder assembly 1〇1 In part, and the tool holder assembly 101 functions in a manner similar to the previous descriptions of the first to sixth embodiments, wherein the memory metal portion and the grip portion are used to hold a tool, but the structure is quite different. Here, the tool holder assembly 101 is also mounted in a shaft 3 that can be used in the same type of mandrel as shown in Fig. 1. However, there are two substantially cylindrical tool holders. The body portion 20 111, and the tool holder body portions 111 are axially separated from each other and each carry three axially protruding arms or fingers 113. Only all of the six arms 113 can be seen in FIG. Two, and in the orientation shown in FIG. 7, the uppermost arm 113 is connected to the tool holder body portion 111 farthest from the receiving end of the assembly 101, and the lowest arm 113 is connected to the total The work of the storage end of the door is made of the main body portion 111. Further, a tool stop portion 106 is disposed and mounted in one of the tool holder body portions 111. The 113 series is equiangularly spaced apart from the inner circumference of the tool receiving portion R of the 5 assembly 101. And the arm 113 on one body portion i n interlocks with the arm 113 on the other body portion. Thus, if a tool is to pass the inner circumference of the tool receiving portion R, the tool will first pass The tool holder holds the first connecting arm η] of the body portion 111 and then passes through a second connection 10 1113 to the second portion of the tool holder body n1. The arms 113 also have a The tool contact surface 11% and a pair of tool bonding edges (not shown), and surrounding the six arms 113 are a pair of axially separated memory metal portions 112. In this assembly, the memory metal portions 112 Ring-shaped, and the arms 113 and the tool receiving portion & pass through each of the loops 15 and the memory metal portions 112 are dimensioned and sorted such that the arms 113 are in a relaxed state when in the first shape The tool can be introduced and removed, but when in a second shape that exceeds a characteristic temperature, the memory metal portions 112 act on the arms 113 to bring them into contact with an insertion tool. In this assembly, when the annular memory metal portion 112 has a second shape 20, and the inner diameter of each of the memory metal portions 112 is smaller than that in the first shape. Thus, when in the second shape, each of the annular memory metal portions 112 can be used to press the arms 113 inwardly toward the axis of the tool holder assembly 101. The first bit of the % memory metal portion 112 is freely adjacent to the first set of arms 113 and adjacent to the second tool holder body portion 111, while the other memory metal 28 200831220 portion 112 is positioned At the free end of the second set of arms and adjacent to the second tool holder body mil. This means that each memory metal portion 112 will have the free ends of the arms 113 in their own regions more than the ends of the arms 113 adjacent to the respective body portions m of the jade holders in the region. The 5 is more curved and this provides a greater grip on the two axially spaced apart locations within the tool receiving portion and thus on the loaded tool. The free ends 113b of the arms serve as gripping portions. Further, the illegal arm 1U is elastically deformed as each arm is a portion 113d which is a deformable portion. The 0 丨 113 is coupled to each of the tool holder body portions 111, and the tool holder body portion 111 can be made of a single piece of material. It can be seen that the tool engaging edges (not shown) on the opposite sides of the arms 113 face the inner circumference of the tool receiving portion R toward different circumferential edges and thus bite into the grasped tool in the opposite direction. Further, the heating of the memory metal portions 112 is achieved in the same manner and heating and/or cooling may be auxiliary. Additionally, when a carrier tool is grasped, the tool grip portions 113b are also clamped between the respective memory metal portions and the tool. In some alternatives, in addition to delivering hot air, the other mechanism can be used to achieve the purpose of heating, i.e., other sources of heat can be provided. In the description of the tool holder assemblies 1' and 101, the force for providing grip on a tool (except at a relatively low speed or when stopped) is applied to each grip portion. Each of the memory metal portions 12, 12', 12, 12 is provided. However, the inventors have learned that in addition to the mechanism that provides the primary source of gripping power on a 29 200831220, the same can be used in the same manner as the conventional conventional conical collet tool holder. A supplementary grip is provided in the tool holder. 〇〇15 2〇呈=8图显不_ The previous example of the tapered collet tool holder, and the tool holds, and is used for the storage and holding-tool (not shown). The shaft portion 1002 is provided with a bore, and the bore has a taper that is tapered to complement the taper collet 1〇〇1. Behind the tapered collet 1001, there is a tail portion fixed to the main body of the conical cylinder 1001 and the tail portion is loaded with a cylinder & „海同官4 has a shoulder (10), for example, And the shoulder is just like the shoulders 1002 facing the shaft part of the cone-shaped cylinder, and there is a spring group between the two shoulders 4a and the position a (in this prior tool) The holder assembly includes a plurality of wave springs, but the embodiment may include a spiral magazine, a single-wave elastic, etc. In operation, when the tool is to be inserted into the cone cylinder, the cylinder The clip 1001 is pushed out of the tapered hole 'that is pushed out to the left, and the tool holder is in the orientation shown in Fig. 8. This is usually achieved by a push rod actuator that pushes the tail bobbin to be 4 rearward. And this allows the collet of the collet to take a position that can be easily inserted - the tool is in a rest position. Then, the action of the push rod actuator on the tail portion 1003 / bobbin 1004 is stopped, making the conical cylinder cool Under the action of the springs 1005, they are pulled back into the complementary tapered portion of the shaft portion 1〇〇2. The interaction of the tapered portions will cause the jaws of the tapered collet 1001 to be forced into contact with a carrier tool. The basic structure and the work of the tapered collet-type tool holder are illustrated. 30 200831220 After the mode, the following two embodiments of the present invention are shown. Figures 9, 10 and 11 show a first conical collet tool holder assembly 201 embodying the present invention. It is clearly shown that the 9th, 1G and _ displays do not completely show the tool holder assembly 2 (H. Special position, corresponding to the cone clamp tool holder of Figure 8 (4). The parts of the barrel face are omitted from the tool holder assembly in Figure 1. However, it should be understood that these elements can be touched by the 8th read and can achieve the same function. 10 15 20 The other parts of the tool holder assembly 2〇1 shown in Figures 9, ίο and 11 are related to the current financial position. The total number of the Guards held is related to the previous 2nd to 7th Figure shows the installation of the visor holder assembly (four) in the way of a shaft private 3 's ran' this tool holder assembly 2 〇 1 can be installed in Figure 1 High-speed PCB drilling _ towel. The lion's Guardian Holder (4) is loaded in its respective tool storage part to carry _Tool 2' and the cylinder loses c to define each tool storage part. The tube red system is set in a shaft insertion In the object 231, the shaft inserting person 231 is in this case a redware holder assembly 2G1 and is configured to be mountable on the shaft 3 (as shown). The shaft insert 231 As a collet accommodating portion, and the collet # has - supports a plurality of (six in this embodiment) main body portions 2 ιι of the grip portion 213, and one of the respective claw portions 213 is A tool grip portion for gripping the insertion tool. Around the jaw portions 213, an annular portion of the memory metal material 212 is disposed in a receiving recess. The memory metal portion 212 and the nose portion 213a of each of the claw portions 2i3 are placed in the tapered portion 31 200831220 of the inner hole of the shaft insert 231, and the tapered portion of the inner hole serves as a collet Storage part. The nose portions 213a and the memory metal portion 212 together form an outer taper that is tapered to the inner bore of the shaft insert 231, and the shaft insert Mi includes a spacer 231 disposed therein. The stress on the outer curved surface releases the recess 23u, and 5 and the insert 231 faces the shaft 3 into which it is inserted, and the stress relief recess 231a is located in the region of the memory metal portion 212. The rear or innermost portion of the shaft insert 231 has a flat surface rather than a tapered inner bore, and this can fit the rear or innermost portion of the collet c. Each of the jaw portions 213 has a support portion 10 213b at the opposite end of the memory metal portion 212 instead of the nose portion 213a, and the support portions are provided in the inner hole of the shaft insert 231. Inside the flat portion and in sliding contact with the surface. A support portion 232 is disposed between the shaft insert 231 and the body portion 211 of the collet, such that the collet is supported by the rod insert 231 along the entire length to resist centrifugation. It is thus known that such a tool holder assembly 201 can be used with a ceramic shaft 3, and at this time the stress relief recess 231a is used for special purposes. In operation, when a tool 2 is to be loaded into the tool holder assembly 2〇1, a force is applied to the collet c in the same manner as previously illustrated in FIG. 8, for example, using a push rod. Thereafter, it is pushed out of the tapered portion of the shaft insert 231 20 and the jaw portions 213 are returned to a rest position in which the tool can be inserted and removed relatively freely. When a tool for rotating is to be grasped, the force acting on the collet c is released, so that the collet c is pulled back to the tapered portion of the shaft insert 231 by a magazine (not shown). Medium, thus forcing the jaw portions 213 into contact with the tool. 32 200831220 At this point, the behavior of the cone collet c tool holder 201 is substantially conventional and is provided by the mechanism on the carried tool when idle and/or has a small shaft diameter. Grip may not be enough. However, the rotary tool holder assembly 201 also includes a memory metal portion 212 that acts on the jaw portions 213 to increase the grip on a carrier tool. The memory metal portion 212 has a particular size and order in the same manner as previously described with respect to the tool holder assembly shown in Figures 2 through 7. In this example, the memory metal portion 212 does not exert a particular force on the jaw portions 213 when in a first shape, and the gripping force utilizes the nose of the jaw portions 213. 213a is achieved, and the jaw portions 213 are forced to move axially toward the tool holder assembly due to contact with the tapered surface of the shaft insert 231. However, when the memory metal portion 212 is in a second shape higher than the characteristic temperature, the memory metal portion 212 acts on the jaw portions 213 to increase the jaw portions 213 and the chamber. The grip contact force between the bearing tools 2. Therefore, particularly in the tool holder assembly 201, the memory metal portion 212 is configured such that the inner diameter of the annular memory metal portion 212 is smaller than the inner diameter of the memory metal portion when it is in the second state. Located in the first state. § Turning the full rehearsal 4, accidentally or by design, the outer diameter of the memory metal portion will increase to apply more force to the conical portion of the jaw portion 213. Thus, the memory metal portion 212 can abut the surface and this will cause the JL tool 2 to be grasped. However, this effect may also increase the stress on the shaft 3 housed in the tool holder assembly 201. Therefore, the stress relief recess 231a is arranged to prevent the force from being damaged in the manner of the home pole. 33 200831220 Acting on the shaft, especially when the miscellaneous rod 3 is a shouting shaft. It can be seen that, in the towel, the age-related article 12 is carried by the main part of the same folder C and can be regarded as the tube red itself ^ 5 "12, 13 and 14 illustrate the implementation of the invention - The conical armor holds the first: Γ ' and the tool holder assembly 301 has some phase with the front-illustrator, and the collet c is also disposed in the rod insert 331 as a central storage portion. 'And the miscellaneous rod insertion character 331 is configured to be mounted on, for example, a Π) species! The shaft M of the machine M shown in the figure. The tube red provides a tool receiving portion for holding a tool 2, and although not shown in the 12th, 13th or the first embodiment, a spring structure for acting behind the collet c Rhyme clip (: return the person to insert the character 331 towel and grasp - the tool carried. 4 Jing clip C also contains a majority (six in this embodiment) cool claw part of the sun, I5 and each jaw # The injury 313 includes a tool grip portion. Further, under normal conditions, the claw portion 313 will pass through the conical portion of the shaft insert 331 and the tapered portion outside the cartridge clamp c. The interaction in the region of the jaw portion 313 is forced to contact the carrier tool 2 by a spring (not shown). However, a memory metal portion 312 is disposed in the shaft. 2, outside the tapered inner hole of the intrusion 331, and the memory metal portion 312 is rod-shaped and carried on the shaft insert 331 to surround the collet receiving portion. In the assembly 301, grasping an insertion tool 2 and releasing the insertion tool 2 can utilize the interaction cone portion and the like in a conventional manner. The effect of the cyanine is achieved, but the memory metal portion 312 can also be used to provide additional grip for the 2008 20082020. In addition, the memory metal portion 312 has the appropriate size and order to achieve the desired result. In assembly 1-3, this additional grip force is achieved by the memory metal portion 312 that is configured to pass through the arm of the shaft insert 231 and act on the jaw portions 313. When the memory metal portion 312 is in a first state, it does not exert a special force on the wall of the tapered collet receiving area of the shaft insert 331. However, when the memory metal portion 312 is converted into In its second shape, it is configured such that the wall portions of the shaft insert 331 are forced to move toward the axis of the work and the holder 301, thereby increasing the 10 tapered portion partially or wholly along one of its lengths. The angle of the portion and/or the inner diameter of the inner bore is increased to increase the force acting on the jaw portions 313 and thereby increase the force acting on the load bearing tool 2. In this embodiment, The memory metal portion 312 can also be sorted as when it is When the shape is changed to the second shape, the inner diameter of the annular memory metal portion 312 is reduced. When this occurs, the outer diameter of the memory metal portion 312 can be unexpectedly or designed to increase, and thus the memory The metal portion 312 can abut against the inner surface of the shaft 3 to which it is mounted. If the shaft 3 is made of a suitable material such as steel, this should not cause any structural problems. In this embodiment It can be seen that the memory metal portion 312 acts indirectly on the grip portion 313 through the wall portion of the shaft insert 331. 20 It is understood herein that the prior heating and/or The instructions for cooling or actuating/deactivating the memory metal portions also apply to the tool holders 201, 301 shown in Figures 9 through μ. It should be noted here that in each of the foregoing configurations, the tool holder assembly is mounted in a shaft and is (or can be) re-axially coupled to a spindle/main body 35 200831220 bearing. Thus, with respect to the separate manner, an integral shaft way in which the work is carried out and the assembly is actually part of the shaft can be provided. The I-clamp assembly can be permanently mounted in each of the shafts, and adhesives and/or solders can be used in these permanent mountings. 5 [Simple description] • The 1st ® is a schematic diagram of a part of the drilling machine, and the drilling machine comprises a . viewing axis, and the drilling mandrel comprises a bearing-tool tool holder Total φ is formed; Figure 2A is a cross-sectional view of 10 on the line π_η of the mandrel shown in Fig. 1; the second figure shows the same cross-section of the i-th mandrel as shown in Fig. 2 , but there is no memory metal portion positioned in it; Figure 2C shows a face view of the memory metal portion of another shape that can be used in the mandrel of Figure 1; 15 Figure 3A shows a similar 2A One of the drawings shown in Fig. 2B has a cross section of the mandrel of the holder assembly, and is another type of design shown in Fig. 1; Fig. 3B shows the same section as Fig. 3A Figure, but with a majority of the memory metal portion positioned therein; 2 〇 Figure 4 shows a schematic cross-section of a mandrel including another tool holder assembly, Figure 5 is the heart shown in Figure 4 A cross-sectional view taken by a part of the line V-ν; Figure 6A shows a tool holder assembly shown in Figures 4 and 5. Side view of the memory metal portion used since 31220; Figure 6B shows an end view of the memory metal portion shown in Figure 6A; Figure 7 shows a schematic cross section of the mandrel including the further tool holder assembly Figure 8 shows a schematic cross-sectional view of a rotary tool holder, and the rotary tool holder includes a tapered collet for understanding another tool holder assembly; Figure 9 is another tool holder The front view of the assembly; Fig. 10 is a cross-sectional view taken along line X-X of a part of the rotary tool holder assembly shown in Fig. 9; 10 Fig. 11 is a rotary tool holder as shown in Fig. 10. Sectional view of the assembly line XI-XI; Figure 12 is a front view of another tool holder assembly; Figure 13 is a line XIII-XIII of another rotation tool holder assembly along the 12th figure A schematic cross-sectional view of the interception; and Fig. 14 is a cross-sectional view taken along line XIV-XIV of the rotary tool holder shown in Fig. 13. [Description of main component symbols] 11,111...tool holder body portion 11a···inwardly protruding portion; connecting piece 11b···cut 12,12,12,12”···memory metal portion 12a '...cut or groove '12a'...central cylindrical passage 12c'...surface 1,1,101...tool holder assembly 2···tool; drill bit 3...shaft 4· · air bearing shaft 5.. Motor 6,106...tool stop 7:.end cover 37 200831220

Ha".通道 212…記憶金屬部份 12b...表面 213"·夾爪部份 12c...相對表面 213 a…鼻部 13，13’，113···臂 213b...支持部份 13 a...徑向最内部表面；工具抓握 231…轴;入物 ‘- 部份 231a.··應力釋放凹部 ， 13b."遠端 232…支持部份 φ 13c...徑向最内部邊緣；工具結合 301···工具持具總成 邊緣 312…記憶金屬部份 13d...可彈性變形部份 313···夾爪部份 14…軸孔 331…幸由才料歪入物 51…永久磁鐵部份 1001…錐形筒夾 52...定子線圈 1002...軸桿部份 53···空氣通路 1002a...肩部 61···孔 1003...尾部 II Ή...0環密封件 1004…筒管 % 112…記憶金屬部份 1004a…肩部 113a…工具接觸表面 1005...彈簧組 113b"·自由端;抓握部份 C...筒夾 113d...可變形部份 Μ…鑽減 201...工具持具總成 R...工具收納部份 211···本體部份 s，s’···心軸 38Ha" channel 212...memory metal portion 12b...surface 213" jaw portion 12c...opposite surface 213 a...nose 13,13',113···arm 213b...support portion 13 a... radially innermost surface; tool grip 231... shaft; inlet '- part 231a. · stress relief recess, 13b. " distal end 232... support part φ 13c... radial Innermost edge; tool combination 301···tool holder assembly edge 312...memory metal portion 13d...elastically deformable portion 313···claw portion 14...shaft hole 331...fortunately Inlet 51... permanent magnet portion 1001...conical collet 52...statar coil 1002...shaft portion 53···air passage 1002a...shoulder portion 61···hole 1003...tail II Ή...0 ring seal 1004...bobbin%112...memory metal part 1004a...shoulder 113a...tool contact surface 1005...spring set 113b"·free end;grip part C...tube Clip 113d... deformable part Μ... drill reduction 201... tool holder assembly R... tool storage part 211··· body part s, s'··· mandrel 38

Claims (1)

200831220 十、申請專利範圍： 1. 一種工具持具總成，其包含一工具收納部份及用以抓握 一被收納在該工具收納部份中之工具的工具抓握裝 置，且該工具抓握裝置包含至少一可在一工具抓握位置 5 與一工具釋放位置之間移動之工具抓握部份、及一記憶 ， 金屬部份，且該記憶金屬部份回應溫度之變化而在一第 / 一形狀與一第二形狀之間可受控制地轉變並且配置成 可在該記憶金屬部份由該第一形狀朝該第二形狀轉變 攀 時，作用在該工具抓握部份上，使該抓握部份朝該工具 10 抓握位置移動。 2. 如申請專利範圍第1項之工具持具總成，其包含一工具 持具本體部份，且該至少一工具抓握部份連接該工具持 具本體部份，並且該工具抓握部份配置成當該工具抓握 部份在該工具抓握位置與該工具釋放位置之間移動 15 時，相對該工具持具本體部份移動。 φ 3.如申請專利範圍第2項之工具持具總成，其中該至少一 〜 工具抓握部份透過各個可彈性變形部份來連接該工具 持具本體部份。 4·如申請專利範圍第3項之工具持具總成，其中該總成配 20 置成使得在該至少一工具抓握部份在該抓握部份位置 與該工具釋放位置之間移動時，該可變形部份將變形。 5.如申請專利範圍第2、3或4項之工具持具總成，其中該 工具持具本體部份與該至少一工具抓握部份可由一單 件式材料製成。 39 200831220 6·如刖述申請專利範圍中任一項之工具持具總成，其中該 工具抓握部份由該工具持具本體部份軸向地延伸出來。 7·如申請專利範圍第！至5項中任一項之工具持具總成，其 5 中該工具抓握部份設置在該工具持具本體部份之徑向 内側。 8 如W述申請專利範圍中任一項之工具持具總成，其中該 工具抓握部份由該工具持具本體部份之一徑向向内突 起沿圓周緣延伸。 9 1〇 如珂述申請專利範圍中任一項之工具持具總成，其中該 二具抓握裝置包含至少一包括該工具抓握部份及該可 變形部份之臂。 •如申請專利範圍第9項之工具持具總成，其中該臂由該 工具持具本體部份軸向地延伸，且該工具抓握部份與該 15 $具持具本體部份被該可變形部份軸向地分開。 •如申請專利範圍第9項之工具持具總成，其中該臂由爷 工具持具本體部份之徑向向内突起部、沿圓周緣環繞兮 工具收納部份之内周緣延伸，且該工具抓握部份與該向 内突起部被該可變形部份沿圓周緣分開 2〇 如申睛專利範圍第9項之工具持具總成，其中該臂由7 X具持具本體部份徑向向内延伸，且該工具抓握部份與 读主要本體部份被該可變形部份徑向地分開。 13·如申請專利範圍第9至12項中任一項之工具持具總成， 其中該臂由一與該工具持具總成軸線平行之端部鐵伸 出來。 40 200831220 14.如申請專利範圍第9至12項中任一項之工具持具總成， /、中該是由—與該工具持具總成軸線橫交之端部懸伸 出來。 如申明專利範圍第1項之工具持具總成，其包含兩組工 抓握σ卩伤及兩工具持具本體部份，且第一組工具抓握 邛伤與第一本體部份之連接，並且第二組工具抓握部份 ^ 與第二本體部份連接，其中前述兩工具持具本體部份互 9 相軸向地分開，且第一組工具抓握部份軸向地突出遠離 该第一工具持具本體部份並朝向該第二工具持具本體 Ρ伤並且雨述弟一組工具抓握部份轴向地突出遠離該 第二工具持具本體部份並朝向該第一工具持具本體部 份。 如申請專利範圍第1項之工具持具總成，其包含多數由 一工具持具本體部份沿圓周緣突出之抓握部份，且至少 < 15 一者朝一第一圓周緣方向突出且至少一其他者朝一第 • 一、相對圓周緣方向突出。 Π·如申請專利範圍第16項之工具持具總成，其包含多數對 抓握部份，且在各對中之第一抓握部份朝該第一圓周緣 方向大出，並且在各對中之第二抓握部份朝該第二、相 2〇 對_緣方向突出，其中有多數工具持具本體部份之徑 向向内突起部份，且各對抓握部份可由各個徑向向内突 起部份支持。 18.如申請專利範圍第17項之工具持具總成，其中該等沿圓 周緣突出之抓握部份環繞該工具收納部份内周緣沿圓 41 200831220 周緣互相77開，且_對抓握部份之第_抓握部份隔著一 圓周緣間距面向另—對抓握部份之第二抓握部份。 19·如申請專利範圍第16至18項中任一項之工具持具總 成八中於垂直於该工具持具總成軸線之方向上所截 5 *之抓握部份橫截面沿該工具持具本體部份之軸向長 度實質上為一定。 20. 如申請專利範圍第16至19項中任—項之工具持具總 成，其中於一垂直於該工具持具總成軸線之方向上所截 取之工具持具本體橫截面沿該工具持具本體部份之轴 10 向長度實質上為一定。 21. 如Μ述申請專利範圍中任一項之工具持具總成，其中該 至少一抓握部份具有一工具結合邊緣。 22·如申請專利範圍第21項之工具持具總成，其中有多數抓 握部伤及多數工具結合邊緣，且至少一邊緣面向一第一 I5 圓周緣方向且環繞該工具收納部份之内緣，而至少一另 一邊緣面向一第二、相對圓周緣方向且環繞該工具收納 部份之内周緣。 23·如丽述申請專利範圍中任一項之工具持具總成，其中前 述至少抓握部份具有一工具接觸表面，且該工具接觸表 20 面係位在該抓握部份與該工具接觸表面相對之一侧上。 24·如前述申請專利範圍中任一項之工具持具總成，其中該 工具持具總成配置成當一所承載工具被抓握在該工具 收納部份中時，使得該抓握部份被失置在該記憶金屬部 份與該工具之間。 42 200831220 5 25. 如前述申請專利範圍中任一項之工具持具總成，其係配 置成使該抓握部份設置在該記憶金屬部份與該工具收 納部份之内周緣表面之間。 26. 如前述申請專利範圍中任一項之工具持具總成，其包含 多數記憶金屬部份。 27. 如前述申請專利範圍中任一項之工具持具總成，其中該 或各記憶金屬部份配置成可作用在各個前述多數抓握 • 部份上。 28.如前述申請專利範圍中任一項之工具持具總成，其中該 10 或各記憶金屬部份配置成可在該記憶金屬部份朝該第 二形狀轉變時，迫使該或各抓握部份朝該工具持具總成 之軸線移動。 29.如前述申請專利範圍中任一項之工具持具總成，其中該 或各記憶金屬部份呈環狀。 15 • w 30.如前述申請專利範圍中任一項之工具持具總成，其中有 兩軸向分開之環狀記憶金屬部份及兩組抓握部份，且該 第一環狀記憶金屬部份配置成可作用在該第一組記憶 金屬部份上且該第二環狀記憶金屬部份配置成可作用 在該第二組記憶金屬部份上。 20 31. 如申請專利範圍第1至29項中任一項之工具持具總成， 其中該或各記憶金屬部份呈長形。 32. 如申請專利範圍第31項之工具持具總成，其中該或各記 憶金屬部份相對該工具持具總成定向於軸向。 33. 如前述申請專利範圍中任一項之工具持具總成，其中該 43 200831220 或各記憶金屬部份實質上沿著該或各抓握部份之全長 作用。 34.如前述申請專利範圍中任一項之工具持具總成，其中各 記憶金屬部份可配置成作用在兩抓握部份上。 5 35.如前述申請專利範圍中任一項之工具持具總成，其中該 或各記憶金屬部份配置成可在該記憶金屬部份朝該第 二形狀轉變時，迫使該或各抓握部份更遠離該工具持具 本體部份。 36. 如前述申請專利範圍中任一項之工具持具總成，其中該 10 記憶金屬部份係配置成在一高於該第一溫度閾值之溫 度時朝該第二形狀轉變。 37. 如前述申請專利範圍中任一項之工具持具總成，其包含 至少一用以供應熱交換流體之流體通道，以加熱及/或 冷卻該至少一記憶金屬部份。 15 38.如申請專利範圍第37項之工具持具總成，其中流體通道 包含至少一使所承載流體與各個記憶金屬部份之間直 接接觸的通道部份。 39.如前述申請專利範圍中任一項之工具持具總成，其係配 置成可設置在一具有一内孔之軸桿内。 20 40.如申請專利範圍第39項之工具持具總成，其中該抓握裝 置配置成可設置在該軸桿之内孔内，即，該或各記憶金 屬部份及該或各抓握部份配置成可設置在該軸桿之内 孑L内。 41·如前述申請專利範圍中任一項之工具持具總成，其包含 44 200831220 一筒夾，且該筒夾包含該至少一工具抓握部份。 42. 如申請專利範圍第41項之工具持具總成，其中該筒夾配 置成可設置在一筒夾收納部份内。 43. 如申請專利範圍第42項之工具持具總成，其中該工具持 5 具總成包含該筒夾收納部份。200831220 X. Patent Application Range: 1. A tool holder assembly comprising a tool receiving portion and a tool gripping device for grasping a tool received in the tool receiving portion, and the tool grasping The gripping device includes at least one tool grip portion movable between a tool gripping position 5 and a tool releasing position, and a memory, metal portion, and the memory metal portion responds to a change in temperature Controllably shifting between a shape and a second shape and configured to act on the grip portion of the tool when the memory metal portion is transitioned from the first shape toward the second shape The grip portion moves toward the gripping position of the tool 10. 2. The tool holder assembly of claim 1, comprising a tool holder body portion, and the at least one tool grip portion is coupled to the tool holder body portion, and the tool grip portion The portion is configured to move relative to the tool holder body portion when the tool grip portion is moved 15 between the tool grip position and the tool release position. Φ 3. The tool holder assembly of claim 2, wherein the at least one tool gripping portion is coupled to the tool body portion through each of the elastically deformable portions. 4. The tool holder assembly of claim 3, wherein the assembly 20 is configured such that when the at least one tool grip portion moves between the grip portion position and the tool release position The deformable portion will be deformed. 5. The tool holder assembly of claim 2, 3 or 4, wherein the tool holder body portion and the at least one tool grip portion are made of a single piece of material. A tool holder assembly according to any one of the preceding claims, wherein the tool grip portion extends axially from the body portion of the tool holder. 7. If you apply for a patent scope! The tool holder assembly of any one of the items 5, wherein the grip portion of the tool is disposed radially inward of the body portion of the tool holder. A tool holder assembly according to any one of the preceding claims, wherein the tool grip portion extends radially inwardly from one of the tool holder body portions along a circumferential edge. A tool holder assembly according to any one of the preceding claims, wherein the two gripping devices comprise at least one arm comprising the tool grip portion and the deformable portion. The tool holder assembly of claim 9, wherein the arm extends axially from the body portion of the tool, and the tool grip portion and the body portion of the 15$ holder are The deformable portions are axially separated. The tool holder assembly of claim 9, wherein the arm extends from a radially inward projection of the body portion of the main tool holder and around the inner circumference of the tool receiving portion along the circumferential edge, and the arm The tool grip portion and the inward protrusion are separated by the deformable portion along the circumferential edge, such as the tool holder assembly of claim 9 of the scope of the patent, wherein the arm is supported by the body portion of the X X Extending radially inwardly, the tool grip portion and the read main body portion are radially separated by the deformable portion. The tool holder assembly of any one of claims 9 to 12, wherein the arm extends from an end portion of the iron parallel to the axis of the tool holder assembly. 40 200831220 14. The tool holder assembly of any one of claims 9 to 12, wherein the tool holder is overhanging from the end transverse to the axis of the tool holder assembly. For example, the tool holder assembly of claim 1 includes two sets of grip σ bruises and two tool holder body portions, and the first set of tools grips the bruises and the first body portion And the second set of tool gripping portions ^ are coupled to the second body portion, wherein the two tool holder body portions are axially separated from each other 9 and the first set of tool grip portions are axially protruded away from each other The first tool holder body portion is scratched toward the second tool holder body and the set of tool grip portions protrudes axially away from the second tool holder body portion and faces the first The tool holds the body part. The tool holder assembly of claim 1, comprising a plurality of gripping portions projecting from a body portion of the tool holder along a circumferential edge, and at least < 15 one protruding toward a first circumferential edge and At least one of the others protrudes toward the first circumference and the opposite circumferential edge. The tool holder assembly of claim 16, which comprises a plurality of grip portions, and wherein the first grip portion of each pair is larger toward the first circumferential edge, and The second grip portion of the pair protrudes toward the second, phase 2, _ edge direction, wherein a plurality of tool holders have a radially inwardly protruding portion of the body portion, and each pair of grip portions can be individually The radially inwardly protruding portion is supported. 18. The tool holder assembly of claim 17, wherein the grip portions projecting along the circumferential edge surround the inner circumference of the tool receiving portion along the circumference of the circle 41 200831220, and the pair is gripped. The first portion of the grip portion faces the second grip portion of the grip portion with a circumferential edge spacing. 19. A cross-section of a grip portion of a tool holder assembly 8 in a direction perpendicular to the axis of the tool holder assembly, as disclosed in any one of claims 16 to 18, along the tool The axial length of the body portion of the holder is substantially constant. 20. The tool holder assembly of any of claims 16 to 19, wherein a cross section of the tool holder body taken in a direction perpendicular to the axis of the tool holder assembly is held along the tool The length of the shaft 10 having the body portion is substantially constant. 21. The tool holder assembly of any of the claims, wherein the at least one grip portion has a tool binding edge. 22. The tool holder assembly of claim 21, wherein a plurality of grips inflict a majority of the tool binding edges, and at least one edge faces a first I5 circumferential edge and surrounds the tool receiving portion And the at least one other edge faces a second, opposite circumferential edge and surrounds the inner periphery of the tool receiving portion. A tool holder assembly according to any one of the preceding claims, wherein at least the grip portion has a tool contact surface, and the tool contact table 20 is positioned at the grip portion and the tool The contact surface is on one of the opposite sides. The tool holder assembly of any one of the preceding claims, wherein the tool holder assembly is configured to cause the grip portion when a carrier tool is grasped in the tool receiving portion It is lost between the memory metal portion and the tool. The tool holder assembly of any one of the preceding claims, wherein the grip portion is disposed between the memory metal portion and the inner peripheral surface of the tool receiving portion . 26. The tool holder assembly of any of the preceding claims, comprising a plurality of memory metal portions. 27. The tool holder assembly of any of the preceding claims, wherein the or each memory metal portion is configured to act on each of the plurality of grip portions. 28. The tool holder assembly of any of the preceding claims, wherein the 10 or each memory metal portion is configured to force the or each grip when the memory metal portion transitions toward the second shape Part moves toward the axis of the tool holder assembly. A tool holder assembly according to any of the preceding claims, wherein the or each memory metal portion is annular. The tool holder assembly of any one of the preceding claims, wherein the two axially separated annular memory metal portions and the two sets of grip portions, and the first annular memory metal A portion is configured to act on the first set of memory metal portions and the second annular memory metal portion is configured to act on the second set of memory metal portions. The tool holder assembly of any one of claims 1 to 29, wherein the or each memory metal portion is elongated. 32. The tool holder assembly of claim 31, wherein the or each metal portion is oriented axially relative to the tool holder assembly. 33. A tool holder assembly according to any of the preceding claims, wherein the 43 200831220 or memory metal portions act substantially along the entire length of the or each grip portion. 34. A tool holder assembly according to any of the preceding claims, wherein each memory metal portion is configurable to act on both grip portions. The tool holder assembly of any one of the preceding claims, wherein the or each memory metal portion is configured to force the or each grip when the memory metal portion transitions toward the second shape The part is farther away from the body part of the tool. The tool holder assembly of any of the preceding claims, wherein the 10 memory metal portion is configured to transition toward the second shape at a temperature above the first temperature threshold. 37. A tool holder assembly according to any of the preceding claims, comprising at least one fluid passage for supplying a heat exchange fluid to heat and/or cool the at least one memory metal portion. The tool holder assembly of claim 37, wherein the fluid passageway comprises at least one passage portion for direct contact between the carried fluid and each of the memory metal portions. 39. A tool holder assembly according to any of the preceding claims, which is configured to be disposed within a shaft having an internal bore. 40. The tool holder assembly of claim 39, wherein the gripping device is configured to be disposed within an inner bore of the shaft, ie, the or each memory metal portion and the or each grip The portion is configured to be disposed within the shaft 孑L. 41. The tool holder assembly of any of the preceding claims, comprising 44 200831220 a collet, and the collet comprising the at least one tool grip portion. 42. The tool holder assembly of claim 41, wherein the collet is configured to be disposed in a collet housing portion. 43. The tool holder assembly of claim 42, wherein the tool comprises five assemblies comprising the collet housing portion. 44. 如申請專利範圍第41至43項中任一項之工具持具總 成，其中該筒夾可相對該筒夾收納部份於一用以固持一 旋轉用工作之工具固持位置與一工具釋放位置之間移 動，且該筒夾是一具有一外錐形表面之錐形筒夾，以便 10 被收納在一互補錐形内孔中。 45. 如申請專利範圍第44項之工具持具總成，其包含一具有 一内孔之筒夾收納部份，且該内孔具有一呈錐形且與該 筒夾之外錐形表面互補的部份。 46. 如申請專利範圍第41至45項中任一項之工具持具總 15 成，其中該記憶金屬部份配置成可作用在該筒夾之至少 一夾爪部份上。 47. 如申請專利範圍第46項之工具持具總成，其中該記憶金 屬部份直接作用在該至少一夾爪部份上。 48. 如申請專利範圍第46項之工具持具總成，其中該記憶金 20 屬部份透過至少一中間構件作用在該至少一夾爪部份 上。 49.如申請專利範圍第41至48項中任一項之工具持具總 成，其中該記憶金屬部份包含一記憶金屬材料之環，且 該環環繞該筒夾設置。 45 200831220 50. 如申請專利範圍第41至48項中任一項之工具持具總 成，其中該筒夾包含該記憶金屬部份。 51. 如申請專利範圍第46至50項中任一項之工具持具總 成，其中該記憶金屬部份配置成可在該筒夾之至少一夾 5 爪部份與該筒夾收納部份之間動作。 52. 如申請專利範圍第42或第43至51項中依附第42項時之 任一項之工具持具總成，其中該記憶金屬部份設置在該 筒夾收納部份之徑向内側。 53. 如申請專利範圍第42或第43至50項中依附第42項時之 10 任一項之工具持具總成，其中該記憶金屬部份配置成可 透過該筒夾收納部份作用在該筒夾之至少一夾爪部份 上。 54. 如申請專利範圍第53項之工具持具總成，其中該記憶金 屬部份設置在該筒夾收納部份之徑向外側。 15 55.如申請專利範圍第54項之工具持具總成，其中該記憶金 屬部份配置成當該記憶金屬部份由該第一形狀朝該第 二形狀轉變時，使該筒夾收納部份之錐形内孔部份的表 面朝該工具持具總成之軸向徑向向内彎曲，藉此使該至 少一工具抓握部份朝該工具抓握位置移動。 20 56.如申請專利範圍第54或55項之工具持具總成，其中該記 憶金屬部份包含一記憶金屬材料之環，且該環環繞該筒 夾收納部份設置，而該筒夾收納部份則環繞該筒夾設 置。 57.如申請專利範圍第43項之工具持具總成，其中當該工具 46 200831220 5 持具總成安裝在一軸桿中時，該記憶金屬部份設置在該 轴桿與該筒夾收納部份之間。 58. —種工具持具總成，係用以固持一工具，且包含一設置 在一筒夾收納部份内之筒夾及用以作用在該筒夾上之 彈簧裝置，且該筒夾具有至少一工具抓握部份並可相對 該筒夾收納部份而在一用以固持一旋轉用工具之工具 固持位置與該彈簧裝置配置成可將該筒夾朝該工具固 • 持位置偏壓之工具釋放位置之間移動，又，該工具持具 包含一回應溫度之變化而在一第一形狀與一第二形狀 10 之間可受控制地轉變的記憶金屬部份，且該記憶金屬部 份配置成可在該記憶金屬部份朝該第二形狀轉變時，作 用在該至少一工具抓握部份上，使該抓握部份朝一工具 抓握位置移動。 59. —種心軸，其包含一如前述申請專利範圍中任一項之工 15 • 華w 具持具總成、及一其中安裝有該工具持具總成之軸桿。 60. —種切削裝置，其包含一如申請專利範圍第59項之心 轴。 61. 如申請專利範圍第60項之切削裝置，其包含一溫度控制 機構，且該溫度控制機構包含用以供應熱交換流體以加 20 熱及/或冷卻該至少一記憶金屬部份之裝置。 4744. The tool holder assembly of any one of claims 41 to 43 wherein the collet is slidable relative to the collet housing portion in a tool holding position for holding a rotating work and a tool The release position is moved and the collet is a tapered collet having an outer tapered surface so that 10 is received in a complementary tapered inner bore. 45. The tool holder assembly of claim 44, comprising a collet housing portion having an inner bore, the inner bore having a tapered shape and complementary to a tapered surface of the collet Part of it. 46. The tool holder of any one of claims 41 to 45, wherein the memory metal portion is configured to act on at least one of the jaw portions of the collet. 47. The tool holder assembly of claim 46, wherein the memory metal portion acts directly on the at least one jaw portion. 48. The tool holder assembly of claim 46, wherein the memory 20 portion is applied to the at least one jaw portion via at least one intermediate member. The tool holder assembly of any one of claims 41 to 48, wherein the memory metal portion comprises a ring of a memory metal material, and the ring is disposed around the collet. The tool holder assembly of any one of claims 41 to 48, wherein the collet comprises the memory metal portion. The tool holder assembly of any one of claims 46 to 50, wherein the memory metal portion is configured to be at least one of the jaws of the collet and the collet portion of the collet Action between. 52. The tool holder assembly of any one of clauses 42 or 43 to 51, wherein the memory metal portion is disposed radially inward of the collet receiving portion. 53. A tool holder assembly according to any one of clauses 42 or 43 to 50, wherein the memory metal portion is configured to act through the collet receiving portion At least one of the jaw portions of the collet. 54. The tool holder assembly of claim 53, wherein the memory metal portion is disposed radially outward of the collet receiving portion. The tool holder assembly of claim 54, wherein the memory metal portion is configured to cause the collet accommodating portion when the memory metal portion is transformed from the first shape toward the second shape The surface of the tapered inner bore portion is curved radially inwardly toward the axial direction of the tool holder assembly, thereby moving the at least one tool grip portion toward the tool grip position. The tool holder assembly of claim 54 or claim 55, wherein the memory metal portion comprises a ring of memory metal material, and the ring is disposed around the collet receiving portion, and the collet is received Some of them surround the collet setting. 57. The tool holder assembly of claim 43, wherein when the tool 46 200831220 5 holding assembly is mounted in a shaft, the memory metal portion is disposed in the shaft and the collet housing portion Between the shares. 58. A tool holder assembly for holding a tool and comprising a collet disposed in a collet receiving portion and a spring device for acting on the collet, and the collet has At least one tool gripping portion and relative to the collet receiving portion, in a tool holding position for holding a rotating tool, and the spring device being configured to bias the collet toward the tool holding position Moving between the tool release positions, and the tool holder includes a memory metal portion that is controllably transformed between a first shape and a second shape 10 in response to a change in temperature, and the memory metal portion The portion is configured to act on the at least one tool grip portion when the memory metal portion transitions toward the second shape to move the grip portion toward a tool gripping position. 59. A mandrel comprising a tool as claimed in any one of the preceding claims, and a shaft assembly in which the tool holder assembly is mounted. 60. A cutting device comprising a mandrel as in item 59 of the patent application. 61. The cutting apparatus of claim 60, comprising a temperature control mechanism, and wherein the temperature control mechanism includes means for supplying a heat exchange fluid to add heat and/or to cool the at least one memory metal portion. 47
TW096128858A 2006-08-03 2007-08-06 Tool holder assemblies TW200831220A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0615456A GB0615456D0 (en) 2006-08-03 2006-08-03 Tool holder assemblies
GBGB0615457.9A GB0615457D0 (en) 2006-08-03 2006-08-03 Rotary tool holder assemblies
GBGB0701282.6A GB0701282D0 (en) 2007-01-23 2007-01-23 Rotary tool holders
GBGB0710293.2A GB0710293D0 (en) 2006-08-03 2007-05-30 Tool holder assemblies

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TW096128860A TW200831218A (en) 2006-08-03 2007-08-06 Rotary tool holders
TW096128858A TW200831220A (en) 2006-08-03 2007-08-06 Tool holder assemblies

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5827045B2 (en) * 1980-12-20 1983-06-07 聖和精密工機株式会社 cutting tool holder
US4790700A (en) * 1984-07-30 1988-12-13 Schwartzman Everett H Integral spring flexure for use with high speed rotating shafts
JPS62199306A (en) * 1986-02-25 1987-09-03 Mazda Motor Corp Holding device for machining tool
DE3909630A1 (en) * 1989-03-23 1990-09-27 Daimler Benz Ag Clamping tool for frictional and highly precise clamping of workpieces
US5108236A (en) * 1990-02-16 1992-04-28 Hitachi, Seiko, Ltd. Low mass spindle and z-axis unit
DE9116547U1 (en) * 1991-08-28 1993-02-18 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De
DE19860254C1 (en) * 1998-12-24 2000-05-31 Daimler Chrysler Ag Machinetool chuck with grip and shrink sleeves use electrically insulated shrink sleeve as coil with pinned end rings carrying accessible sleeve end contact surfaces for power cables.
GB0311852D0 (en) * 2003-05-22 2003-06-25 Westwind Air Bearings Ltd Rotary tool holder assemblies

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TW200831218A (en) 2008-08-01
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