1255212 九、發明說明： 【發明所屬之技術領域】 本發明係一種線切割放電加工所用的細線之線張力控制機構，尤指一 種專用於微小線切割放電加工機構之微細線張力控制機構。 【先前技術】 傳統的線切割放電加工機為了讓細線能穩定運行，細線從給線線軸出發 後品、、、工過些大小不一的滚輪組〜如動悲搖桿滑輪扣冰如^^沈口此勿、 電磁式制動輪(electromagnetic brake roller)、夾緊輪(pinchr〇ller)，及驅動輪 (drive和捲曲輪(curlingr〇1iers)等，最後再將廢細線匯集，如此才能^ 細線維持精妓穩定的運行。似此機構，機台本身需有較大的面積來容响 上述的滾輪組，所以此類設計僅適用於大型的線切割放電加工機。日本專 利公報第特開平1〇-3_卜特開平06—㈣㈣，特開平5—則％及特開 2000-246545，以及美國專利公報第6,326,578Β1所披露之典型裝置，係都 屬於大型線切繼電加玉機所適狀繞線機構。線_放電加讀在 =到精巧化及微小化的設計目標時，在繞線機構中，控制細線的線張力 、冓也必須同時更改設t|«，才能合於微小化的要求。目此，對於類如桌上 里大小的微線切割放電加工機，傳統的細線線張力控制方式，因體積過大 2適用所以’思索—種能精密控制細線張力，且控制機構能微小化者， 疋、、在切割放電加工機業者亟思解決的問題。 【發明内容】 題，前述傳統線切瓶電加工機之線張力控制機構微小化的問 通么展出『>(政細線張力控制機構』。 放電加工機之微細線張力控制機 狀鋼鐵ίϊ. —ff i基板1裝置—給線_，給線線軸連結設計一盤 端穿透基_-磁=鐵材枓，一端與給線線軸相連結，另-性材益及—磁力大小調整機構树結。-盤狀磁 ill 被吸引。盤狀磁性材料背面連結一底座，當磁力大小調 正機構物轉難時，錄雜材料底座將帶動餘磁性材料前進或後 ⑧ 6 1255212 ί二ΐ磁=用的有效距離也將隨之改變，所以餘鋼鐵材料被盤《 隨之改變，以此方式，便可精密控制細線的線張力， 以達到精密線切割的目的。 【實施方式】 如圖οι所示，為本發明之微細線張力控制機構組成，其包括一 -給線線軸1卜一收線線軸16，一盤狀磁性材料23，一般狀二’ 一磁力大小調整機構20及一磁力大小指示器21等所組^而成准材枓， 請參閱圖〇1言兒明’其中，基板10係為一座體，其右口上方裝置一 軸11，其左上方裝置一收線線軸16 ;給線線軸u 。、、、、， 料=-軸桿25穿透此盤狀鋼鐵材料24，—端與給線線材 另一端穿透基板10與一磁力大小指示器21及—磁 、’、D， 結。-盤狀磁性材料23穿透此軸桿25，並與盤狀鋼鐵材^機構2〇相連 此距離是磁力作用的有效距離d，於是給線線轴u受=^4相距一距離， 引。盤狀磁性材料23背面連結-底座22，當磁力大 ^用而隔空被吸 調整時，盤狀磁性材料底座22將帶動盤狀磁性材料周整機 轉 磁力作用的有效距離d也將隨之改變，所以盤狀 j進或後退，因此 料23吸附的力量F也隨之改變。 、’载材料24被盤狀磁性材 當收線線軸16以-定的速度持續收線時，給線線轴u 而隔空被吸引，此吸力將使給線線軸11產生旋又力F的作用 力T;當d值愈小時，盤狀磁性材料23作用 力生因==承受拉 就愈大，所以給、_ u受磁力F刻_度=材;^ 23上的磁力F 因此微細線所承受的線張力τ就愈大，反之，:㈣阻力也愈大， 變小。d距離可透過細節距的螺紋、步進馬達或時，線張力T就 微調，如此便可精密控·線的線張力值。 膽儀器做精密 切割物频當微細線 線用首先，當調變磁力作用之有效距離^ -磁力F作用，如果微細銅線3G處於靜止狀態，二二，U會承受 等於磁力F的大小，當d距離愈 楕在麵40的重量 。線線軸承雙磁力F的作用就愈小， 1255212 欲使精密缺碼4〇的重量等於磁力F的大小，則必須減輕精密綱4〇的重 量，才能使兩者獲得平衡，依此關係，即可找到磁力作用之有效距離d與 精密結碼4〇的重量_，此—線張力鱗可提供後續加工時，調整線張力、 Λ小的重要參考依據。 清參閱圖03綱，较—蝴躺5Gx7Gxl35mm3 Α小賴線切割放 電加^機構。由於磁力控制具有體積小、安定性佳、成本低及隔空作用， 無能置損失㈣點，故繞線空間可微小化，因此線切誠電加工機構便可 橄小=设計，此機構具有精密的線張力控制機能，配合機構周邊的輔助設 計^切#j放電加J1機構可裝置於任何具有放電加域能的機器上，工件 式臥式倒置式、傾斜式或螺旋式等方向的加工。此發明堪稱 同ί工^機11中續未見之—大佳作。本發明所揭示者，乃較佳實施例之 '撕i凡局部之贱或修飾而源於本發明之技術思想而為熟習該項技藝 之人^於推知者，倶不脫本發明之專利權範嘴。 Μ ^所陳’本發明無論就目的、手段與功效，在在顯示其迥異於習知 ，聪首先發明合於如，亦在在符合發日狀糊要件，懇請 貝一貝明察，並祈早日賜予專利，俾嘉惠社會，實感德便。 【圖式簡單說明】 圖01係本發明之示意圖。 =明之磁力仙之有效距離與細線線張力示意圖。 圖03係本發明之實際應用範例圖。 8 1255212 【主要元件符號說明】 基板 10 磁性材料底座 22 給線線轴 11 盤狀磁性材料 23 壓條機構 12 盤狀鋼鐵材料 24 支撐輪 13 軸桿 25 細線導塊 14 細線 30 被加工物 15 石去碼 40 收線線軸 16 磁力作用之有效距離 d 磁力大小調整機構 20 磁力 F 磁力大小指示器 21BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire tension control mechanism for a wire used in wire-cut electrical discharge machining, and more particularly to a fine wire tension control mechanism dedicated to a micro wire-cut electrical discharge machining mechanism. [Prior Art] In order to make the fine wire run stably, the thin wire is driven from the wire spool, and the roller sets of different sizes are used. This is not the case, the electromagnetic brake roller, the pinchr〇ller, and the drive wheel (driver and curler). Finally, the waste wires are collected, so that the thin wire can be Maintaining a precise and stable operation. Like this mechanism, the machine itself needs a large area to accommodate the above-mentioned roller set, so this type of design is only suitable for large wire-cut EDM machines. Japanese Patent Gazette No. 1 〇-3_Bu Tekaiping 06-(4) (4), special Kaiping 5 - then % and special opening 2000-246545, and the typical devices disclosed in US Patent Publication No. 6,326, 578Β1 are all suitable for large-scale line-cut relays and jade machines. Wound winding mechanism. When the line_discharge is added to the design goal of ingenuity and miniaturization, in the winding mechanism, the line tension and the flaw of the control thin line must also be changed at the same time to set t|«. Requirements. For the type of micro-wire cutting electric discharge machine in the table, the traditional thin wire tension control method is suitable for the volume control. The problem solved by the electric discharge machine of the cutting electric discharge machine. [Invention] The question of the miniaturization of the wire tension control mechanism of the conventional wire-cutting electric machine is exhibited "> (political tension control mechanism). The fine wire tension control of the electric discharge machine controls the machine steel ϊ. —ff i Substrate 1 device—to the wire _, to design a disk end through the base line _-magnetic = iron 枓, one end is connected with the wire spool , another - material benefits and - magnetic size adjustment mechanism tree knot - disk magnetic ill is attracted. The back of the disk-shaped magnetic material is connected to a base, when the magnetic size adjustment mechanism is difficult to turn, the recording material base will drive the rest The magnetic material advances or after 8 6 1255212 ί ΐ = = the effective distance will also change, so the rest of the steel material is changed by the disk, in this way, the wire tension of the fine wire can be precisely controlled to achieve The purpose of the precision wire cutting is as follows. As shown in the figure, the microwire tension control mechanism of the present invention comprises a pair of wire spools 1 and a wire take-up spool 16, a disk-shaped magnetic material 23, generally The shape of the second magnetic force adjustment mechanism 20 and a magnetic force indicator 21 are grouped into a quasi-material, please refer to the figure 〇1 言明', wherein the substrate 10 is a body, and the right side of the device is a shaft 11, the upper left device is a take-up bobbin 16; the wire spool u, , , , , material = - the shaft 25 penetrates the disc-shaped steel material 24, the end and the other end of the wire rod penetrates the substrate 10 and A magnetic size indicator 21 and - magnetic, ', D, knot. - The disc-shaped magnetic material 23 penetrates the shaft 25 and is connected to the disc-shaped steel material mechanism 2〇. This distance is the effective distance d of the magnetic force, so that the line axis u is separated by a distance of ^^4. The back side of the disc-shaped magnetic material 23 is connected to the base 22, and when the magnetic force is used and the air is sucked and adjusted, the effective distance d of the disc-shaped magnetic material base 22 to drive the magnetic force of the disc-shaped magnetic material around the whole machine will also follow. Change, so the disc shape j enters or retreats, so the force F absorbed by the material 23 also changes. The load-carrying material 24 is attracted by the disk-shaped magnetic material when the take-up bobbin 16 continues to take off at a constant speed, and is attracted to the wire axis u by air. This suction force causes the wire spool 11 to rotate and force F. The force T; when the value of d is smaller, the force of the disk-shaped magnetic material 23 is greater than that of the bearing, so the larger the magnetic force F is, the more the magnetic force F is, the more the magnetic force F is. The greater the line tension τ is, the opposite: (4) The greater the resistance, the smaller. d The line tension T can be fine-tuned by the thread of the fine pitch, the stepping motor or the time, so that the thread tension value of the wire can be precisely controlled. The bile instrument makes precision cutting material frequency. When the micro-wire is used first, when the effective distance of the magnetic force is modulated, the magnetic force F acts. If the micro-copper wire 3G is in a static state, the second and second, U will withstand the magnitude of the magnetic force F. The distance d is the weight of the face 40. The smaller the role of the double-magnetic force F of the wire bearing, the smaller the weight of the precision missing code 4 is equal to the size of the magnetic force F, the weight of the precision class 4 must be reduced, in order to balance the two, according to this relationship, The effective distance d of the magnetic force and the weight _ of the precision knot 4 can be found. This line tension scale can provide an important reference for adjusting the line tension and the small size during subsequent processing. See Figure 03 for the sake of clarity, and the 5Gx7Gxl35mm3 Α小赖线 cutting discharge and heating mechanism. Because the magnetic control has small volume, good stability, low cost and space separation, the inability to set the loss (four) points, so the winding space can be miniaturized, so the line cutting Chengdian processing mechanism can be small = design, this mechanism has Precise line tension control function, auxiliary design around the mechanism ^cut #j Discharge plus J1 mechanism can be installed on any machine with discharge plus field energy, workpiece type horizontal inverted, inclined or spiral processing . This invention is called the masterpiece of the same machine. The disclosure of the present invention, which is a part of the preferred embodiment of the present invention, is derived from the technical idea of the present invention and is known to those skilled in the art, without departing from the patent of the present invention. Fan mouth. Μ ^所陈's invention, regardless of the purpose, means and efficacy, is showing that it is different from the conventional, Cong first invented the same, and also in conformity with the hair-like requirements, please ask Beibeibei Mingcha, and pray soon Granted a patent, and the company is in a good position. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 01 is a schematic view of the present invention. = The effective distance of the magnetic force of Ming and the tension of the thin wire. Figure 03 is a diagram showing an actual application of the present invention. 8 1255212 [Description of main components] Substrate 10 Magnetic material base 22 Wire spool 11 Disk-shaped magnetic material 23 Baffle mechanism 12 Disk-shaped steel material 24 Support wheel 13 Shaft 25 Thin wire guide block 14 Thin line 30 Workpiece 15 Stone go Code 40 take-up spool 16 effective distance d for magnetic action magnetic size adjustment mechanism 20 magnetic force F magnetic size indicator 21
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