200419090 玖、發明說明 (發月說月應敘明，發明所屬之技術領域、先前技術、内容、實施方式及圖式簡單說明) 【發明所屬之技術領域】 發明領域 本發明是有關於一種線性致動器，一般包括一動力致 5動器、一受該致動器致動的運輸架體，及一線性導引體用 以V引5亥運輸架體沿一線性路徑。此線性致動器具有於工 業機械叙置寬廣的應用範圍，以二維或三維可移動台體及 機械手臂的形式以及用於汽車、船艇及飛機的領域中。 【先前技術3 10 發明背景 傳統上，一用於此型式的線性致動器之線性導引體是 由-循環珠型滑動軸承所構成。第8a至8d顯示一典型線 ^月動軸承’其包括一基冑！，及一導引架體3，其受該機 部1支撐且其内界定一具有開放頂端之導槽2。該導槽2 15 20200419090 发明, description of the invention (the description of the month should be stated, the technical field of the invention, the prior art, the content, the embodiments and the drawings are briefly explained) [Technical field to which the invention belongs] The present invention relates to a linear The actuator generally includes a power actuator, a transport frame body actuated by the actuator, and a linear guide body for guiding the transport frame body along a linear path. This linear actuator has a wide range of applications in industrial machinery, in the form of two- or three-dimensional movable tables and robotic arms, and in the field of automobiles, boats and aircraft. [Prior Art 3 10 Background of the Invention Traditionally, a linear guide for a linear actuator of this type is composed of a recirculating bead type sliding bearing. Sections 8a to 8d show a typical line ^ Monthly moving bearing 'which includes a base 胄! And a guide frame body 3 supported by the machine part 1 and defining a guide groove 2 with an open top end therein. The guide slot 2 15 20
以可滑動的方式納置-運輸架體5，其藉由以四排循環鋼The sliding frame 5 is housed in a slidable manner by circulating steel in four rows.
珠6沿該運輸架體5的其中_側壁配置，且_螺桿4納置 ㈣運輸架體5的對應螺孔内。該運輸架體5設置有數螺 紋安裝孔7,用以將_被致動的機台或其他物件（未顯示 於圖中）附接於上。 該螺桿4經由數循環鋼珠（未顯示於圖中）螺入於 應螺孔内。當該螺桿4被一電動馬達（未顯示於圖中” 動時’該運輸架體5沿該導槽2祕移動，且由該四排; %鋼珠6所形成的線性軸承可容許該運輪架體$以很小, 摩^祭及極小游動而移動。 6 200419090 玖、發明說明 ^ ^ ' 然而，近年來該運輸架體5的位置精確性愈加需要， 而已發現此型式之習用線性轴承對_些應用中已不適告。 由於使用鋼珠來支撐負載，且該等鋼珠是以點或小接觸面 積來接觸相對表面，因此當該運輪架體受到一相當大或部 平均負載時，該等鋼珠及/或導引架體3易產生彈性變形且 如此會導致增加摩擦阻力及失去位置精確性。 ίο 15 ❿ 當該運輸架體5受到-相當大的向上負載時，如第8a 圖所示，該導引架體3的上部將會變形而相互遠離，如第 9圖所示者，且以較大部分的負載施予上排的鋼珠“當該 運輸架體5受到-相當大的向下負載時，如第处圖所示， 會以較大部分的負載施予下排的鋼珠6。當該運輸架體5 受到-相當大的侧向負載時’如第圖所示會以較大部 分的負載施予對應侧排的鋼珠6。當該運輸架體5受到一 相當大的扭轉負載時，如第8d圖所示，會以較大部分的負 載施予對應對角相對排的鋼珠6。如這些圖式所示，當該 運輸架體5受到-不均的負載時，該等鋼珠6的局部部位 會支撐相當大部分的負載，且如此易導致相當大的彈性變 形。 【明内1 20 發明概要 基於習知的問題’本發明之主要目的，即在提供一種 改良式線性致動器，設置有一高硬度及無摩擦的線性抽承 之改良式線性 本發明的第二目的在提供一種高度耐久 7 200419090 玖、發明說明 致動器。 本發明的第三目的在提供一種改良式線性致動器，其 。又置有用以消除超時形成的游動之裝置。 根據本發明，以提供一種線性致動器來達成這些目的 5 '、匕括· ¥引架體’包含-界定有-上滑動表面之基 板及V引板，該導引板以相對該基板平行且間隔關係 L伸且界疋下滑動表面及一對側滑動表面；一運輸主 體，放置於該基板上，且界定一上滑動纟面相對於該導引 板的下滑動表面，及一下滑動表面相對於該基板的上滑動 10表面；及一對側板，自該運輸主體的部分以側向間隔關係 延伸，以將該導引板設於其間，且界定側滑動表面相對於 該導引板的側滑動表面；至少其一之各對的相對滑動表面 係以一滑動軸承構件所界定。 该等滑動轴承構件，其主要可以多孔碳材質所製成， 15可提供相當小摩擦堅硬軸承表面，其即使當該運輸架體受 到高且/或不平均負載時可達到適合且耐久的導引作用。且 ，由於侧向導引是藉由將該導引板設於該等側板之間而設 成，且該等側板之間的開口寬度相較於習用導引架體之下 是相當小，因此可確保相當堅固的側向導引作用。特別是 2〇右用於支撐一負載的支撐板，如一座台，是連接橫跨於 該等側板的自由端時，該等側板可被該支撐板更為堅固地 持住，且可確保更堅固的側向導引作用。由於垂直導引是 藉由該基板及導引板於該運輸主體的側向中間部處相對且 該基板與該導引板的滑動表面是以實質上成直角地相互相 8 200419090 玖、發明說明 對所設成，因此可確保堅固垂直導引作用。一般來說，此 線性致動器另外設置有一動力致動器，用以致動該運輸主 體沿该專滑動表面。 由於即使該等滑動軸承構件並不完全免於磨損，該等 5側板宜適以可調整該等側板與該導引板的相對滑動表面之 間的間隙，且該導引板適以可調整該運輸主體與該導引板 的相對滑動表面之間的間隙。此調整作用可藉使用凹槽或 其他長形孔作為安裝孔，使鎖固構件如螺桿通過，而得以 鲁 達成。 10 基於使該線性致動器的側向範圍最小化，各該等滑動 板可設置有一外側向表面，其與該運輸主體的一對應側表 面實質上齊平。 圖式簡單說明 茲將本發明配合參考圖式詳述於后，其中·· 15 第1圖是使用本發明的線性致動器之分解透視圖； 第2圖是該線性致動器之透視圖； · 第3圖是該運輸架體之部分剖面側視圖； 第4圖是該線性致動器之示意剖面前視圖； 第5a及5b圖是類似於第4圖，而顯示如何去除該等 20 滑動表面内的間隙； 第6圖是本發明第二實施例之透視圖； 第7圖是本發明第三實施例之透視圖； 第8a至8d圖是顯示一習用線性致動器受到不同種類 之剖面前視圖；及 9 200419090 玖、發明說明 第9圖是顯示該習用線性致動器的導引架體的變形的 一可能形式之前視圖 【實施方式3 較佳實施例之詳細說明 5 第1至3圖是顯示使用本發明的線性致動器1〇。該線 性致動器10包括一矩形基板Π，及一對端板12及13以 直立方向固定地附接於該基板u的對應縱端。一具相當大 厚度之矩形導引板14延伸於該等端板12與13的上端之間 · 以正對地相對於該基板U，使該基板u及導引板14的縱 1〇向延伸中心線相互實質上對齊。該基板11、端板12及導 引板14連結形成一導引架體。 一由一矩形塊體所構成之運輸架體15是藉由上滑動軸 承構件16及下滑動軸承構件17，以實質上不會有任何游 動的方式，設於該基板U與導引板14之間。一對側板18 15及19固定地附接於該運輸架體15的上表面之其中一側部 上且使忒導引板14藉由側滑動軸承構件20及21，以實 _ 質上不會有任何游動的方式，設於該等側板18與19之間 〇 該等滑動軸承構件16至21可由任何習用包含金屬軸 2〇承材貝、塑膠軸承材質及其他高硬度軸承材質的軸承材質 所構成，金屬軸承材質例如填充有油的多孔金屬轴承及以 口 間π劑敗入於内的金屬轴承，塑膠軸承材質例如PTFE 樹脂及聚醯亞胺樹脂，其他軸承材質例如木材或其他多孔 破材質。本發明特別適合使用之多孔碳材質一般是以將酚 10 玫、發明說明 酿樹脂與木材或其他植物材質如纯混合，且燒結此混合 物以使其形成陶製材質所置備而成。所產生的：:材：二 般稱為木材型式或RB陶製型式軸承材質，且即使無潤滑 =下可表現出高硬度性及低摩擦阻力。此材質近年來已被 喜愛使用，乃因其高度耐用性且因無須任何潤滑劑而可防 塵及防濕。 成寻h勤軸承構件 …牧贫劑或任何物理 上 接配置方式附接於該運輸架體15朗相對導引板14丄， 及附接於該等側板18及19或該相對基板u上。於所述實 施例中’該特動軸承構件16至21皆附接於該運輸架體 15及側板18及19的對應表面上。相對於這些滑動軸承構 件Μ至21之表面可藉軟性鋼或不鏽鋼構件所界定。 該運輸架體15可適以藉一珠形螺旋機構致動，該珠形 π旋機構包括-螺桿23、_具—螺旋凹槽界定於内且螺接 納置_桿23之螺帽22，及數鋼珠36,該等鋼珠36納置 於由該螺桿23及螺帽22接合界定之螺旋凹槽内。該螺帽 U是固定地附接於該運輸架體15，且該螺桿Β是納置於 该螺帽22的-螺孔内且延伸於該運輸架體15的—中心孔 35内。該等鋼珠36循環於該螺旋凹槽内，且於該螺桿Μ 巾9 22 用方式達到低摩擦無游動銜接。 «桿23於其中_端處受該前板12藉由—軸承構件 4可旋轉地支撐，且以_懸臂方式延伸通過該運輸架體b 的中心孔。掣止體25及26附接於該等前及後板i2及η 、相對内側上以限制該運輸架體〗5作動行程。 200419090 玖、發明說明 10 15 該$系秤U是受—始 又疑轉驅動單元27所致動，該旋轉驅 動單兀27 w纟滑輪29附接於—電動馬達μ的輪出轴 上k動/月輪31附接於該螺桿23的對應端上，及—产 狀皮帶30通過繞於這此、、典 衣 月輪29及31上。因此，藉驅動該 電動馬達28,該螺桿23可以適意方向轉動。 μ 該旋轉驅動單元27附接於-依次固定地附接於該前版 12上之安裝板32。—保護蓋33附接於該安裝板32上以覆 蓋該旋轉驅動單元27的移動部位。 於所述貫施例中，告^ # 田该螺才干23被該旋轉驅動單元27 轉動且-¾運輸架體15以任—縱向方向受致動時該導引板 14及與該運輸架體15的上及下表面銜接之該基板u可防 止該運輸架體15的任何垂直移動，而與該導引板14的側 4銜接之4等侧板18及19可防止該運輸架體Μ的任何侧 向移動。該等滑動軸承構件16至21是設於這些相互相對 的滑動表面之間。The beads 6 are arranged along the side wall of the transport frame body 5, and the screw 4 is received in the corresponding screw hole of the transport frame body 5. The transport frame 5 is provided with several screw mounting holes 7 for attaching an actuated machine or other objects (not shown in the figure). The screw 4 is screwed into the corresponding screw hole through several circulating steel balls (not shown). When the screw 4 is moved by an electric motor (not shown in the figure), the transport frame 5 moves along the guide groove 2 and is formed by the four rows; the linear bearing formed by the steel balls 6 allows the wheel The frame $ is moved with small, friction, and minimal movement. 6 200419090 玖, description of the invention ^ ^ However, in recent years, the position accuracy of the transport frame 5 has become more and more necessary, and it has been found that this type of conventional linear bearings It is no longer applicable in some applications. Because steel balls are used to support the load, and the steel balls contact the opposite surface with points or small contact areas, when the wheel carrier is subjected to a considerable or average load, the The steel balls and / or the guide frame body 3 are prone to elastic deformation and this will result in increased friction resistance and loss of position accuracy. Ίο 15 ❿ When the transport frame body 5 is subjected to a considerable upward load, as shown in Figure 8a It is shown that the upper part of the guide frame body 3 will deform and move away from each other, as shown in FIG. 9, and a large portion of the load is applied to the upper row of steel balls. When loading downwards, as shown in the figure below, Part of the load is applied to the steel balls 6 in the lower row. When the transport frame 5 is subjected to a-considerable side load, 'as shown in the figure, the corresponding side row of steel balls 6 will be applied with a larger part of the load. When the transport frame 5 receives a considerable torsional load, as shown in Fig. 8d, a relatively large portion of the load will be applied to the steel balls 6 corresponding to the diagonally opposite rows. As shown in these figures, when the transport frame 5 When subjected to an -uneven load, a part of the steel balls 6 will support a considerable portion of the load, and so easily cause considerable elastic deformation. [Akimoto 1 20 Summary of the invention based on the conventional problem 'of the present invention The main object is to provide an improved linear actuator, which is provided with an improved linear with high rigidity and frictionless linear drawing. A second object of the present invention is to provide a highly durable actuator. A third object of the present invention is to provide an improved linear actuator, which is further provided with a device for eliminating swimming caused by overtime. According to the present invention, a linear actuator is provided to achieve these objectives 5 ', dagger · ¥ lead frame 'includes a base plate with a defined upper sliding surface and a V lead plate. The guide plate extends parallel to the substrate with a spaced relationship L and extends the lower sliding surface and a pair of side sliding surfaces; a transportation; A main body, which is placed on the substrate and defines an upper sliding surface with respect to the lower sliding surface of the guide plate, and a lower sliding surface with respect to the upper sliding surface of the substrate; and a pair of side plates from the part of the transportation body Extend in a laterally spaced relationship to position the guide plate therebetween and define a side sliding surface with respect to the side sliding surface of the guide plate; at least one pair of opposite sliding surfaces is formed by a sliding bearing member. These sliding bearing members, which can be mainly made of porous carbon material, can provide a hard bearing surface with relatively low friction, which can reach a suitable and durable even when the transport frame is subjected to high and / or uneven loads. Guiding effect. And, since the side guide is set by arranging the guide plate between the side plates, and the width of the opening between the side plates is relatively small compared with the conventional guide frame, so This ensures a fairly robust lateral guidance. In particular, when the right side is used to support a load, such as a table, is connected to the free ends of the side plates, the side plates can be more firmly held by the support plate, and can ensure more Robust lateral guidance. Since the vertical guide is opposed by the substrate and the guide plate at the lateral middle portion of the transport body, and the sliding surfaces of the substrate and the guide plate are mutually opposed at a substantially right angle 8 200419090 发明, description of the invention It is designed to ensure a strong vertical guiding effect. Generally, the linear actuator is additionally provided with a power actuator for actuating the transport body along the special sliding surface. Since even if the sliding bearing members are not completely free from abrasion, the 5 side plates should be adapted to adjust the gap between the side plates and the opposite sliding surface of the guide plate, and the guide plate is adapted to adjust the The gap between the transport body and the opposite sliding surface of the guide plate. This adjustment can be achieved by using grooves or other elongated holes as mounting holes to allow the locking member, such as a screw, to pass through. 10 Based on minimizing the lateral extent of the linear actuator, each of the sliding plates may be provided with an outward facing surface that is substantially flush with a corresponding side surface of the transport body. Brief description of the drawings The present invention will be described in detail with reference to the drawings, in which ... Figure 1 is an exploded perspective view of a linear actuator using the present invention; Figure 2 is a perspective view of the linear actuator ; Figure 3 is a partial cross-sectional side view of the transport frame; Figure 4 is a schematic sectional front view of the linear actuator; Figures 5a and 5b are similar to Figure 4 and show how to remove the 20 The gap in the sliding surface; Figure 6 is a perspective view of a second embodiment of the present invention; Figure 7 is a perspective view of a third embodiment of the present invention; Figures 8a to 8d are views showing a conventional linear actuator subjected to different types A sectional front view; and 9 200419090 玖, description of the invention FIG. 9 is a front view showing a possible form of deformation of the guide frame body of the conventional linear actuator [Embodiment 3 detailed description of the preferred embodiment 5 first 1 Figures 3 to 3 show the use of the linear actuator 10 of the present invention. The linear actuator 10 includes a rectangular substrate Π, and a pair of end plates 12 and 13 are fixedly attached to the corresponding longitudinal ends of the substrate u in an upright direction. A rectangular guide plate 14 with a considerable thickness extends between the upper ends of the end plates 12 and 13 so as to face the substrate U opposite to each other, so that the substrate u and the guide plate 14 extend in the longitudinal direction of 10 The center lines are substantially aligned with each other. The base plate 11, the end plate 12, and the guide plate 14 are connected to form a guide frame body. A transport frame 15 composed of a rectangular block is provided on the base plate U and the guide plate 14 with an upper sliding bearing member 16 and a lower sliding bearing member 17 in a manner that does not substantially cause any movement. between. A pair of side plates 18 15 and 19 are fixedly attached to one side portion of the upper surface of the transport frame body 15 and the cymbal guide plate 14 passes the side sliding bearing members 20 and 21 so that There is any way of moving, and it is located between the side plates 18 and 19. The sliding bearing members 16 to 21 can be made of any conventional bearing material including metal shafts, bearing materials, plastic bearing materials and other high hardness bearing materials. It is composed of metal bearing materials such as porous metal bearings filled with oil and metal bearings that are filled with π agent between mouths, plastic bearing materials such as PTFE resin and polyimide resin, and other bearing materials such as wood or other porous materials. Material. The porous carbon material particularly suitable for use in the present invention is generally prepared by mixing phenol 10 resin, wood resin or other plant materials such as pure resin, and sintering the mixture to form a ceramic material. The resulting :: Material: two are generally called wood type or RB ceramic type bearing material, and even without lubrication = can show high hardness and low friction resistance. This material has been loved in recent years due to its high durability and its resistance to dust and moisture due to the absence of any lubricant. Cheng Xun bearing components… a lean agent or any physical attachment configuration is attached to the transport frame 15 to the guide plate 14 丄, and to the side plates 18 and 19 or the opposite substrate u. In the described embodiment, 'the special bearing members 16 to 21 are all attached to the corresponding surfaces of the transport frame 15 and the side plates 18 and 19'. The surfaces opposite to these sliding bearing members M to 21 may be defined by soft steel or stainless steel members. The transport frame 15 can be adapted to be actuated by a bead-shaped screw mechanism, which includes a screw 23, a screw groove defined in the screw nut 22 and a screw receiving rod 23, and A number of steel balls 36 are received in the spiral groove defined by the joint of the screw 23 and the nut 22. The nut U is fixedly attached to the transport frame body 15, and the screw B is housed in a screw hole of the nut 22 and extends into a center hole 35 of the transport frame body 15. The steel balls 36 are circulated in the spiral groove, and a low-friction, no-movement connection is achieved with the screw M towel 9 22 in a manner. The «rod 23 is rotatably supported by the front plate 12 at the end thereof through a bearing member 4 and extends through the central hole of the transport frame b in a cantilever manner. Stopper bodies 25 and 26 are attached to the front and rear plates i2 and η, on the opposite inner sides to limit the travel stroke of the transport frame. 200419090 发明, invention description 10 15 The $ system scale U is actuated by a rotating drive unit 27, and the rotary drive unit 27 is attached to a wheel-out shaft of an electric motor μ. The / moon wheel 31 is attached to the corresponding end of the screw 23, and the producing belt 30 is wound around here, and the moon wheels 29 and 31. Therefore, by driving the electric motor 28, the screw 23 can rotate in a desired direction. The rotation drive unit 27 is attached to a mounting plate 32 fixedly attached to the front plate 12 in order. -A protective cover 33 is attached to the mounting plate 32 to cover a moving portion of the rotary driving unit 27. In the described embodiment, the guide plate 14 and the transport frame when the field driving screw 27 is rotated by the rotation driving unit 27 and the transport frame 15 is actuated in any direction—in the longitudinal direction. The base plate u connected to the upper and lower surfaces of 15 can prevent any vertical movement of the transport frame 15, and the side plates 18 and 19 connected to the side 4 of the guide plate 14 can prevent the transport frame M from Any sideways movement. The sliding bearing members 16 to 21 are provided between these mutually facing sliding surfaces.
如第3圖所示，該等側板18及 運輸架體15的上表面之任一側端上 該等對應側板18及19的安裝孔37， 的對應螺孔39内。據此，一支撐板 19是固定地附接於該 ，其是藉螺桿38穿入 且螺入該運輸架體15 34延伸橫過該等側板As shown in Fig. 3, the mounting holes 37 of the corresponding side plates 18 and 19 are formed in the corresponding screw holes 39 on either side of the upper surfaces of the side plates 18 and the transport frame body 15. According to this, a support plate 19 is fixedly attached to the support plate, which is penetrated by the screw 38 and screwed into the transport frame body 15 34 to extend across the side plates.
20 Μ及19的上端，並附接於其上，其是藉螺桿41穿過該支 板的對應女裝孔4〇 ,且螺入該等侧板! 8及^ 9的對 應螺孔42内。因此該支據板34可將該等側板18及19的 自由端相互連接，且藉以強化該等側板18及以免其 相互逐離的變形。如此有助於增加該導引架體的側向導引 12 玖、發明說明 作用之堅固性。 由於相較於習用軸承使用珠體及滾輪分別以點及線接 觸，此配置的該等滑動表面之間是以面接觸，因此提供一 鬲支撐堅硬性。因此，即使當受到一相當大負載，仍可防 止因其所發生的彈性局部變形，且如此可防止摩擦阻力且 改善該運輸架體於運動方向及垂直於運動方向的方向二者 之定位準確度。 並且，當該運輸架體15受到如第8&至8d圖任一種的 不均句負載時，所施予的負載受到一相當大的表面積所支 撐，因此於任一情況時皆可確保適當低的摩擦阻力及高定 位準確度。根據發明人所作的測試，其顯示優於習用線性 致動器之改良當該運輸架體15受到可能會扭轉該運輸架體 的不平均負載時特別顯著。並且，以長期過度負載的測試 亦顯示較優於習用線性滑動器。 當任一滑動軸承構件已磨損時，且該等相對表面之間 產生間隙時，其可藉鬆脫該等側板18及19的螺桿3 8，且 將該等側板相近移動而消除，以於再次緊固該等螺桿之前 消除此間隙。為此目的，該等側板18及19的安裝孔38以 及該支撐板34的安裝孔40可形成側向橢圓形以配合此調 整。或者或同步地，該等前及後板12及13的安裝孔可以 預定方向伸長，以配合該導引板14的位置調整。 第6圖顯示本發明的第二實施例，其使用一氣動致動 裔’包括一附接於該前板12上的汽紅51，及一活塞桿52 ，該活塞桿52延伸於該汽缸51外且穿過該前板12。該活 200419090 玖、發明說明 塞桿52的内端連接於一滑動地納置於該汽缸51内之活塞 (圖中未顯示），且該活塞桿52的自由端連接於該運輸架 體15。該汽缸51設置有一對埠口 53及54，用以如習知技 藝進給及釋放空氣以致動該活塞。 5 第7圖顯示本發明的第三實施例，其使用一線性馬達The upper ends of 20M and 19 are attached to it, which is through the corresponding female holes 40 of the support plate by the screw 41 and screwed into the corresponding screw holes 42 of these side plates! 8 and ^ 9 . Therefore, the receipt plate 34 can connect the free ends of the side plates 18 and 19 to each other, and thereby strengthen the side plates 18 and prevent them from being deformed from each other. This helps to increase the lateral guidance of the guide frame body. Compared with the conventional bearing, which uses beads and rollers to contact with points and wires, respectively, the sliding surfaces in this configuration are in surface contact, thus providing a rigid support. Therefore, even when subjected to a considerable load, it can still prevent local deformation due to its elasticity, and thus can prevent frictional resistance and improve the positioning accuracy of the transport frame in both the direction of movement and the direction perpendicular to the direction of movement . Moreover, when the transport frame 15 is subjected to an uneven sentence load as shown in any of Figs. 8 & 8d, the applied load is supported by a considerable surface area, so it can be ensured to be appropriately low in any case. Friction resistance and high positioning accuracy. According to tests made by the inventors, it has been shown that improvements over conventional linear actuators are particularly significant when the transport frame 15 is subjected to uneven loads that may twist the transport frame. In addition, tests with long-term excessive loads have also shown to be superior to conventional linear sliders. When any sliding bearing member is worn and a gap is created between the opposing surfaces, it can be eliminated by loosening the screws 38 of the side plates 18 and 19 and moving the side plates close to each other to facilitate Eliminate this clearance before tightening the screws. For this purpose, the mounting holes 38 of the side plates 18 and 19 and the mounting holes 40 of the support plate 34 may be formed into a lateral ellipse to fit this adjustment. Alternatively or simultaneously, the mounting holes of the front and rear plates 12 and 13 may be extended in a predetermined direction to match the position adjustment of the guide plate 14. FIG. 6 shows a second embodiment of the present invention, which uses a pneumatically actuated pump including a steam red 51 attached to the front plate 12 and a piston rod 52 that extends from the cylinder 51 Outside and through the front plate 12. The activity 200419090 发明, description of the invention The inner end of the plug rod 52 is connected to a piston (not shown) slidingly housed in the cylinder 51, and the free end of the piston rod 52 is connected to the transport frame 15. The cylinder 51 is provided with a pair of ports 53 and 54 for feeding and releasing air to actuate the piston as is known in the art. 5 FIG. 7 shows a third embodiment of the present invention, which uses a linear motor
致動器，包括一定子61 ,其延伸於該基板u的上表面上 以提供所需磁場。該運輸架體15的底表面設置有永久磁性 件（圖中未顯示），以適於與該定子61或一銅板（圖中未 H 顯示）所產生的磁場共同用以對應於該定子6丨所產生的磁 10 場而產生渦電流。 儘管本發明已就本發明之較佳實施例詳細說明，凡熟 於此技藝人士可作不同替代及變更而不脫離本發明申請專 利範圍中所提之範圍。舉例來說，該線性致動器用之動力 源並不侷限於上述者，而可由任何用以線性移動該運輸架 15 體之習用動力致動器所構成。 【囷式簡單說明】 _ 第1圖是使用本發明的線性致動器之分解透視圖； 第2圖是該線性致動器之透視圖； 第3圖是該運輸架體之部分剖面側視圖； 20 第4圖是該線性致動器之示意剖面前視圖； 第5a及5b圖是類似於第4圖，而顯示如何去除該等 滑動表面内的間隙； 第6圖是本發明第二實施例之透視圖； 第7圖是本發明第三實施例之透視圖； 14 r 200419090 玖、發明說明 第8a至8d圖是顯示一習用線性致動器受到不同種類 之剖面前視圖；及 第9圖是顯示該習用線性致動器的導引架體的變形的 一可能形式之前視圖 5 【圖式之主要元件代表符號表】 習知部分： 24…軸承構件 l···基部 25J6···掣止體 2…導槽 27…旋轉驅動單元 3…導引架體 28···電動馬達 4…螺桿 29···主滑輪 5…運輸架體 30…環狀皮帶 6…循環鋼珠 3l···從動滑輪 7…螺紋安裝孔 32…安裝板 本發明部分： 33…保護蓋 10…線性致動器 34…支撐板 11…勒反 35···中心孔 12，13…端板 37,40…安裝孔 14…導引板 38,41…螺桿 15…運輸架體 39,42…螺孔 16，17···上，下滑動軸承構件 5l···汽缸 18，19…側板 52…活餅 20,21···側滑動軸承構件 53,54…埠口 22…螺帽 61…定子 23…螺桿The actuator includes a stator 61 extending on the upper surface of the substrate u to provide a required magnetic field. The bottom surface of the transport frame 15 is provided with a permanent magnetic member (not shown in the figure), which is suitable for cooperating with the magnetic field generated by the stator 61 or a copper plate (not shown in the figure) to correspond to the stator 6 丨The resulting magnetic field produces an eddy current. Although the present invention has been described in detail with reference to the preferred embodiments of the present invention, those skilled in the art can make different substitutions and changes without departing from the scope mentioned in the patent scope of the present application. For example, the power source for the linear actuator is not limited to the above, but may be composed of any conventional power actuator for linearly moving the transport frame 15 body. [Brief description of the formula] _ Figure 1 is an exploded perspective view of the linear actuator using the present invention; Figure 2 is a perspective view of the linear actuator; Figure 3 is a partial cross-sectional side view of the transport frame 20 Figure 4 is a schematic sectional front view of the linear actuator; Figures 5a and 5b are similar to Figure 4 and show how to remove the gaps in the sliding surfaces; Figure 6 is a second embodiment of the present invention Example 7; Figure 7 is a perspective view of a third embodiment of the present invention; 14 r 200419090 玖, description of the invention Figures 8a to 8d are front views showing different types of cross sections of a conventional linear actuator; and Figure 9 The figure is a front view showing a possible form of deformation of the guide frame body of the conventional linear actuator. 5 [The main components of the figure represent the symbol table] Known part: 24 ... bearing member l · ·· base 25J6 ···· Stopper body 2 ... Guide groove 27 ... Rotary drive unit 3 ... Guide frame body 28 ... Electric motor 4 ... Screw 29 ... Main pulley 5 ... Transport frame body 30 ... Endless belt 6 ... Circular steel ball 3l ... · Driven pulley 7 ... Threaded mounting hole 32 ... Mounting plate The present invention Points: 33 ... Protection cover 10 ... Linear actuator 34 ... Support plate 11 ... Reverse 35 ... Center hole 12, 13 ... End plate 37,40 ... Mounting hole 14 ... Guide plate 38,41 ... Screw 15 ... Transport frames 39,42 ... Screw holes 16,17 ... Upper and lower sliding bearing members 5l ... Cylinders 18,19 ... Side plates 52 ... Ring cake 20,21 ... Side sliding bearing members 53,54 ... Port Port 22 ... Nut 61 ... Stator 23 ... Screw
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