TW504423B - Electrical discharge power supply modular device of an electrical discharge machine - Google Patents

Electrical discharge power supply modular device of an electrical discharge machine Download PDF

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TW504423B
TW504423B TW89121230A TW89121230A TW504423B TW 504423 B TW504423 B TW 504423B TW 89121230 A TW89121230 A TW 89121230A TW 89121230 A TW89121230 A TW 89121230A TW 504423 B TW504423 B TW 504423B
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Taiwan
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discharge
power supply
discharge power
module
circuit
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TW89121230A
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Chinese (zh)
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Ruei-Kuan Lin
Yung-Feng Nian
Jau-Shiou Li
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Ind Tech Res Inst
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Abstract

An electrical discharge power supply modular device of an electrical discharge machine comprises at least one electrical discharge power supply motherboard providing a connection framework of an electrical discharge power supply control signal bus and several electrical discharge power supply circuits for being flexibly inserted with several electrical discharge power supply modular boards, finely-repaired circuit modular boards, and specially-processed circuit modular boards so as to form several segments of electrical discharge voltages and currents by means of receiving the control of an electrical discharge signal generating board thereby providing electrical discharge timing pulse waves to each of electrical discharge power supply circuits for accomplishing a final electrical discharge procedure.

Description

504423 A7 B7 PA89071C.TWP -3/16 五、發明説明(I ) 【技術領域】 本發明係關於一種採用模組化設計的放電加工機放電 電源系統。 【先前技術】 5 放電加工機(Electrical Discharge Machine,以下簡稱 EDM) 現已成為模具加工不可或缺的設備,而放電電源系統的好 壞影響EDM之加工表面粗_度、加工效率、電極消耗以及 能量消耗等表現。 如圖2A及圖2B所示者,放電加工過程中,放電電流 ⑺波峰值(Ip)與放電電流脈波寬(τρ)決定加工表面特性,而電 流休止時間(τ,)則影響加工效率。放電迴路即是用以控制 放電電流波形,以符合所需之加工要求。 請同時參閱圖1、圖2Α及圖2Β,放電迴路係由放電直 流電源(DC),經限流電阻(R)、電晶體(TD、防止逆向電流 15之一^極體(Di、D〗)連接於工作電極(P)間構成’當電晶體(D 導通時,兩極(P)間產生直流電壓,在兩極(P)間隙夠狹窄 時便造成絕緣破壞產生放電電流,直到電晶體(TD導通之 時間為τρ+τη時,令電晶體(TO截流,此時電流變為零,再 經過休止時間τΤ後,再令電晶體導通,如此控制電晶體導 20通-截流(ON-OFF)時間,便形成一連串如圖2Α及圖2Β所示 之放電電流波形。 如圖3所示者,一般EDM放電電源系統可分為高壓電 源迴路(90)及低壓電源迴路(91),在放電加工中以1〇〇伏特 〜200伏特之高壓電源(vH)做為引弧,使得放電效率及穩 本紙張尺度適用中國國家標準(CNS ) M規格(2 1 〇'χ 297公釐) (請先閱讀背面之注意事項再· -裝· 頁) 經濟部中央標準局員工消費合作社印製 504423 A7 B7 PA89071C.TWP-4/16 經濟部中央標準局員工消費合作社印製 五、發明説明(1) … 定度提高,而以60伏特〜1〇〇伏特之低壓電源(vL)做為放電 加工中電流段數能量的提供。 一般設計則依所規劃之加工能量段數規格製作成放電 電源板,有的高壓放電迴路(90)及低壓放電迴路(91)集中設 5計於一片電路板上,有的將高壓放電迴路(90)及低壓放電 迴路(91)設計成二片電路板,經由配線連接控制信號(94)、 直流電源、限流電阻、電極(95)及工作台(96)形成放電電源 迴路系統,而這些設計在擴充性就有所限制,不易彈性安 裝所需的放電電壓及電流段數,且配線複雜,維修較困 10難。 本案發明人鑑於上述習用放電加工機放電電源系統所 衍生的各項缺點,乃亟思加以改良創新·,並經多年苦心孤 詣潛心研究後,終於成功研發完成本件採用模組化架構設 計之放電電源系統。15【發明目的】 本發明之目的即在於提供一種放電加工機放電電源模 組化裝置,其放電電源採用模組化架構設計,使得放電電 源系統易於安裝與維護。 本發明之次一目的係在於提供一種放電加工機放電電 20源模組化裝置,其利用放電電源模組設定裝置調整放電電 源模組板,可彈性組成多段放電電壓及電流,具有可擴充 性。· 本發明之另一目的係在於提供一種放電加工機放電電 源模組化裝置,其可減少配線,大幅降低電感效應影響。-4 - 本紙張尺度適用中國國家榡準(CNS ) A4規格(210X297公釐) (請先閲讀背面之注意事項再IP?本頁) .裝· -訂一 線 504423 B7 PA89071C.TWP-5/16 經濟部中央標準局員工消費合作社印裝 五、發明説明(^ ) 本發明之又一目的係在於提供一種故電加工機放電電 源模、、且化裝置,就適用性而言,本發明除了適用雕模放電 加工機的放電電源系統,也適用於細孔放電加工機及創成 放電加工機。5【技術內容】 可達成上述發明目的之放電加工機故電電源模組化裝 置,其放電電源系統採用模組化設計,放電電源模組板可 經由調整放電電源模組設定裝置,設定二次高壓高壓、 低壓…等放電電壓及加工電流段數,所以可彈性調整系統 中放電電源模組板之多寡及位置,經由接受放電信號產生 板之控制,以提供放電控制訊號至放電電源迴路,完成最 終放電程序。【圖式簡單說明】 請參閱以下有關本發明一較佳實施例之詳細說明及其 附圖’將可進一步瞭解本發明之技術内容及其目的功效; 有關該實施例之附圖為: 為習用放電加工機之放電迴路基本構造電路圖; 圖2A及圖2B為習用放電加工機之放電電流波形圖; 圖3為習用放電加工機放電電源裝置之系統架構電路 20 方塊圖; 圖4為本發明放電加工機放電電源模組化裝置之系统 架構電路方塊圖; 圖5為本發明放電加工機放電電源模組化裝置中放電 電源模組板之硬體架構方塊示意圖; 10 15 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) (請先閲讀背面之注意事項再 -裝- 頁) 經濟部中央標準局員工消費合作社印製 504423 A7 B7_PA89Q71C.TWP-6/ 16 五、發明説明( < ) … 圖6為本發明放電加工機放電電源漢組化裝置中放電 電源母板之硬體架構方塊示意圖; 圖7為本發明放電加工機放電電源模組化裝置中修細 放電模組板之硬體架構方塊示意圖;以及 5 圖8為本發明放電加工機放電電源漠組化裝置之電路 迴路示意圖。 【主要部分代表符號】 10放電信號產生器 11電腦數值控制設定加工參數 12正常/電弧讀取數值 13 PCI(ISA)匯流排 20放電電源控制信號匯流排 30低壓放電模組 31高壓放電模組 32二次高壓模組 33修細迴路模組 331光耦合器 332推動級 333後級高速切換電路 334無感限流電阻 34特殊加工迴路模組 '40放電電源模組板 41放電電源模組設定裝置 42光耦合器 -6- 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) _r:--.-------- (請先閲讀背面之注意事項再頁) 訂 L—'· 504423 A7 B7 PA89071C.TWP-7/ 16 五、發明説明( 經濟部中央標準局員工消費合作社印製 10 43推動級 44後級切換電路 45放電控制單元 46極間放電迴路連接裝置 47過電流保護裝置 50放電電源母板 51放電電源模組板連接裝置 52放電電源迴路連接器 60電極 61工作台 【較佳實施例】 請參閱圖4,本發明係採用模組化架構設計,而提供 一種放電加工機之放電電源模組化裝M (Electrical Discharge Power Supply Modular Device),其主要特故是將放電信號產 生器10送出的控制信號,透過放電電4控制信號匯流排 (Electrical Discharge Control Signal Bus)20傳遞給例如低壓放電 模組30、高壓放電模組31、二次高壓模組32、修細迴路模 組33以及特殊加工迴路模組34等各放電電源模組,而各放 電電源模組的產生是利用放電電源模組板的放電電源模組 設定裝置來加以調整設定。 其中,使用者所設定之電腦數值彳空制設定加工參數 (CNC Data Setting)l 1 以及一正常 / 電故讀取數值(Normal/Arc Data Reading)12經由一 PCI(ISA)匯流排13傳遞給該放電信號 產生器10,使放電電源可依使用者所設定加工參數條件, 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐) (請先閱讀背面之注意事項再· •裝. 頁) -訂 -線— 4— 504423 經濟部中央標準局員工消費合作社印製 A7 B7 ~·^ --------------—- _ PA89071C.TWP - 8/16 五、發明説明(匕) ^ 提供所需的放電能量進行加工。 為達上述的設計,本發明是將放電電源迴路架構以模 組化設計來加以實現,放電電源模組化系統可分為如圖5 所示之放電電源模組板4〇以及如圖6所示之放電電源母板 5 50等兩部份。 請同時參閱圖4及圖5,放電電源模組板4〇可由放電電 源模組設定裝置41調整,設定低壓放電模組3〇、高壓放電 模組31、二次高壓模組32等放電模組,同時可彈性調整系 統中放電電源模組板之多寡及位置,使得系統易於安裝與 10維護。另外,系統中提供之修細迴路模組33,可使得系統 能進行修細加工,而特殊加工迴路模組34則提供特殊材質 加工、特殊放電電流波形、鏡面加工放電迴路…等,使本 發明之整體應用更加具有彈性。 如圖5所示者,放電電源模組板40是藉著放電信號產 15生器10透過放電電源控制信號匯流排2C傳輸控制信號,以 ON-OFF的切換速率來提供放電加工機听需能量。放電電 源模組板40藉由放電電源模組設定裝置41,將放電電源控 制信號匯流排20的信號’分門別類傳送到指定的光_合器 42中,經由光搞合器42接收,再轉化成控制推動級43的準 2〇位,再經過推動級43推動後級切換電路44,由金屬氧化物 半導體場效功率電晶體(MOSFETTransistor)之D、S端與放電 迴路連接來切換產生放電脈波,圖5中之η表示控制放電電 源的個數單元,侬所設計放電電源模組板40尺寸大小及連 接放電電源控制信號匯流排20的連接器所連接信號個數及 (請先閱讀背面之注意事項再 .s__ 裝· 頁) (訂 •"線--_— 本紙張尺度適用中國國家標準(CNS ) Α4規格(21〇χ297公釐) 504423 A7 B7 五、發明説明( PA89071C.TWP-9/16 10 15 經濟部中央標準局員工消費合作社印製 20 耐電流大小來決定η的個數。 依據放電電源系統規格,經由放電電源模組設定裝置 4卜設定每-放電電源模組板4〇中放電控制單元45的放電 電流段數\電源型態及功能(高壓、低壓、二次高壓、修 細特殊等)j吏得放電電源模組板安置在如圖6所示 之放電電源母板50時,可以將放電電源控制信號匯流排2〇 的信號,㈣設定的型態予於解碼傳送至各㈣單元45, 進而控制放電電源波形及放電電流大小。 >為了保護大電流放電關時瞬間產生突錢成電晶體 損壞,在後級切換電路44中採用緩震電路(SnubberCircuit) 來降低穴波電壓及震盛頻率。在極間放電迴路連接裝置46 回授放電電源模組板40每一段控制單元45之放電電流,經 由過電流保護裝置47判斷比較,如果趕過最大保護電流 時’過電流保護裝置47送出一失能信號(DisableSignal)給光 耦合器42關閉放電電源控制信號接收使得後級M〇SFET 功率電晶體關閉,暫時停止產生放電電流,直到過電流保 護裝置47判斷比較低於最大保護電流時,過電流保護裝置 47送出一致能信號(Enable Signal)信號給光耦合器42啟動放 電電源控制信號接收,產生放電電流。 請同時參閱圖4及圖6,放電電源母板50提供放電電源 控制信號匯流排20及放電電源迴路連接架構,可彈性安插 放電電源模組板40、修細迴路模組33及特殊加工迴路模組 34以達到泛用型為目的。 如圖6所示者,放電電源母板50接收放電信號產生器 -9 - 本紙張尺度適用中國國家榇準(CNS )八4麟(210><297公釐) (請先閲讀背面之注意事項再 裝.^^4 頁) 504423 Α7 Β7 PA89071C.TWP - 10/1 經濟部中央標準局員工消費合作社印製 五、發明説明($ ) , 10之放電電源控制信號,提供與放電電源模組板40的連接 裝置51及放電電源迴路連接器52。放電電源母板50中每個 放電電源模組板連接裝置51皆連接著放電電源控制信號匯 流排20線路,將放電電源模姐板連接裝覃51依序規劃為二 5次高壓、高壓放電、低壓放電及修細迴路模組,放電電源 模組板40依所規劃,安置在放電電源母板5〇之連接裝置 51。圖6中η表示與放電電源模組板4〇連接個數,其值取決 於系統對放電電源的規劃及放電電源母板5〇尺寸大小的限 制。 10 在放電迴路中,不同的限流電阻連接在放電電源母板 50的放電迴路連接器52中,設計出不同的電流段數,每一 段不可超過MOSFET電晶體所承受的最大額定電流。選用 限流電阻時需考慮放電時所承受的消耗功率,以避免限流 電阻過熱。 15 請參閱圖7 ’係提供本發明中修細放電模組板之硬體 架構方塊示意圖,由於修細迴路的加工時間(Τ〇η)在1微秒( μδ)以下,故較需上升與下降響應快速的放電迴路架構, 所以與低壓放電迴路有所不同’儘可能使放電迴路的電容 效應減至最小,修細迴路由於採用極窄脈寬的小電流對工 20件加工,故使用140伏特做為放電電源,以利系統較易引 政成功。 由於修細迴路採用極窄脈寬的小電流對工件加工,需 較快的上升與下降響應,儘可能使放電迴路的電容效應減 至最小,所以單獨開發修細迴路模組板33連接固定於放電 -10- 本紙張尺度適用中國國家標f ( CNS )八4規格(21〇Χ297公釐) (請先閱讀背面之注意事項再頁) 訂— 'W線 經濟部中央標準局員工消費合作社印製 期423 A7 ------------ D, PA89071C.TWP - 11 / 16 五、發明説明(f ) … 電源母板50中來控制放電加工中的修細加工。 修細迴路模組板33接受控制信號經由光耦合器331 接收’再轉化成驅動推動級332的準位’再經過推動級332 推動後級高速切換電路333 ’由正、負端與放電迴路連接 5來切換放電,修細放電迴路最主要特性就是後級高速切換 電路333之MOSFET電晶體切換頻率響應夠快速,導通(Tum ON)的上升及截流(Turn OFF)下降的延遲儘可能的小,然而 要提昇這些響應’閘驅動電路(Gate Dnve Circuit)的高速化 便是一重要關鍵。 10 MOSFET電晶體執行高速的交換動作,必須儘可能使 用較低阻抗的驅動電路,尤其Turn OFF時延遲更為顯著。 限流電阻334盡可能採用無感電阻,直接安裝(ONBoard)在 修細迴路模組板33上。 圖7中之η表示控制修細迴路的個數單元,依所設計修 15 細迴路模組板33尺寸大小及連接放電電源控制信號匯流排 20的連接器耐電流大小來決定η的個數: 本發明所提供放電加工機放電電源模組化裝置之系統 整體應用,係如圖8所示者,放電電源母板50作為放電信 號產生器10及放電電源模組板30-33之間的橋樑並提供各模 20 組放電迴路的連接裝置51。各放電電源模組板30-33再依所 規劃,分別安置在放電電源母板50之各連接裝置51中,藉 由其提供的放電迴路連接器52分別連接各直流電源(V〇、504423 A7 B7 PA89071C.TWP -3/16 V. Description of the Invention (I) [Technical Field] The present invention relates to a discharge power system for a discharge processing machine using a modular design. [Previous Technology] 5 Electrical Discharge Machine (EDM) has become an indispensable device for mold processing, and the quality of the discharge power system affects the surface roughness of EDM, processing efficiency, electrode consumption and Energy consumption and other performance. As shown in Figures 2A and 2B, during discharge machining, the peak value of the discharge current ⑺ wave (Ip) and the discharge current pulse width (τρ) determine the surface characteristics of the processing, and the current dwell time (τ,) affects the processing efficiency. The discharge circuit is used to control the discharge current waveform to meet the required processing requirements. Please refer to Fig. 1, Fig. 2A and Fig. 2B at the same time. The discharge circuit is a discharge direct current power supply (DC), through a current-limiting resistor (R), a transistor (TD, one of the 15 to prevent reverse current ^ pole body (Di, D) ) Is connected between the working electrodes (P) to form a 'DC voltage is generated between the two poles (P) when the transistor (D) is on. When the gap between the two poles (P) is narrow enough, it will cause insulation damage and generate a discharge current until the transistor (TD When the conduction time is τρ + τη, the transistor (TO is cut off, and the current becomes zero at this time, and then the transistor is turned on after the inactivity time τΤ is passed, so that the transistor is turned on for 20 times-ON-OFF) In time, a series of discharge current waveforms as shown in Figure 2A and Figure 2B are formed. As shown in Figure 3, the general EDM discharge power system can be divided into a high voltage power circuit (90) and a low voltage power circuit (91). In China, a high-voltage power supply (vH) of 100 volts to 200 volts is used as the pilot arc, so that the discharge efficiency and stability of this paper are applicable to the Chinese National Standard (CNS) M specification (2 1 0'χ 297 mm) (please first (Please read the notes on the back again--installed · page) Staff of the Central Bureau of Standards, Ministry of Economic Affairs Printed by Cooperative Cooperatives 504423 A7 B7 PA89071C.TWP-4 / 16 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention (1)… Increased to a certain degree, and a low-voltage power supply (vL from 60 volts to 100 volts) ) As the supply of current segment energy in electrical discharge processing. Generally, the design is made into a discharge power board according to the planned number of processing energy segments. Some high-voltage discharge circuits (90) and low-voltage discharge circuits (91) are concentrated in five counts. On one circuit board, some high voltage discharge circuits (90) and low voltage discharge circuits (91) are designed as two circuit boards, and the control signal (94), DC power supply, current limiting resistor, electrode (95) and The workbench (96) forms a discharge power circuit system, and these designs have limitations in scalability, it is not easy to flexibly install the number of discharge voltages and current segments, and the wiring is complicated, and maintenance is difficult. 10 In view of the above Various shortcomings derived from the discharge power system of the conventional electrical discharge machine are eager to be improved and innovated. After years of painstaking and meticulous research, the research and development of this module has been successfully completed. Architecture-designed discharge power system. 15 [Objective of the invention] The purpose of the present invention is to provide a modularized device for the discharge power of a discharge processing machine. The discharge power source adopts a modular architecture design, which makes the discharge power system easy to install and maintain. A second object of the invention is to provide a 20-source modularized device for discharging electricity of a discharge processing machine, which uses a discharge power module setting device to adjust a discharge power module board, which can flexibly constitute multiple discharge voltages and currents, and has expandability. · Another object of the present invention is to provide a modularized discharge power supply device for an electric discharge machine, which can reduce wiring and greatly reduce the influence of inductance effects. -4-This paper size is applicable to China National Standard (CNS) A4 specification (210X297mm) (Please read the precautions on the back before IP? This page). Installation · -Order first line 504423 B7 PA89071C.TWP-5 / 16 Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs. 5. Description of the invention (^) Another object of the present invention is to provide a discharge power supply module and an integrated device for a conventional electric processing machine. The discharge power system of the engraving EDM is also suitable for fine-hole EDM and EDM. 5 [Technical content] The discharge power supply modularized device of the discharge processing machine that can achieve the above-mentioned purpose of the invention. The discharge power supply system adopts a modular design. The discharge power supply module board can be adjusted twice by adjusting the discharge power supply module setting device. High voltage, high voltage, low voltage, etc. discharge voltage and number of processing currents, so it can flexibly adjust the number and position of the discharge power module board in the system, and provide the discharge control signal to the discharge power circuit through the control of the discharge signal generating board. Final discharge procedure. [Brief description of the drawings] Please refer to the following detailed description of a preferred embodiment of the present invention and the accompanying drawings' for further understanding of the technical content of the present invention and its effects. The drawings related to this embodiment are: The basic structure circuit diagram of the discharge circuit of the electrical discharge machine; Figures 2A and 2B are the discharge current waveforms of the conventional electrical discharge machine; Figure 3 is a block diagram of the system architecture circuit 20 of the discharge power supply device of the conventional electrical discharge machine; Block diagram of the system architecture circuit of the discharge power module device of the processing machine; Figure 5 is a block diagram of the hardware structure of the discharge power module board of the discharge power module device of the discharge machine of the present invention; Standard (CNS) A4 specification (210X297 mm) (Please read the precautions on the back before loading-page) Printed by the Staff Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 504423 A7 B7_PA89Q71C.TWP-6 / 16 V. Description of the invention (<)… FIG. 6 is a block diagram of the hardware structure of the discharge power supply motherboard in the discharge power supply unit of the electrical discharge processing machine of the present invention; FIG. 7 is The block diagram of the hardware structure of the discharge module modularized in the discharge power supply modularization device of the invented discharge processing machine; and FIG. 8 is a schematic circuit diagram of the discharge power supply assembly unit of the discharge processing machine of the present invention. [Representative symbols of main parts] 10 Discharge signal generator 11 Computer numerical control setting processing parameters 12 Normal / Arc reading value 13 PCI (ISA) bus 20 Discharge power control signal bus 30 Low voltage discharge module 31 High voltage discharge module 32 Secondary high-voltage module 33 Trimming circuit module 331 Photocoupler 332 Pushing stage 333 Rear stage high-speed switching circuit 334 Non-inductive current limiting resistor 34 Special processing circuit module '40 Discharge power module board 41 Discharge power module setting device 42 Optocoupler-6- This paper size is applicable to China National Standard (CNS) A4 specification (210X297 mm) _r: --.-------- (Please read the precautions on the back before you page) Order L — '· 504423 A7 B7 PA89071C.TWP-7 / 16 V. Description of the invention (Printed by the Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 10 Printed 43 43 Propulsion stage 44 Back stage switching circuit 45 Discharge control unit 46 Inter-pole discharge circuit connection device 47 Current protection device 50 discharge power mother board 51 discharge power module board connection device 52 discharge power circuit connector 60 electrode 61 workbench [preferred embodiment] Please refer to FIG. 4, the present invention adopts a modular architecture design And to provide a discharge processing machine M (Electrical Discharge Power Supply Modular Device), its main purpose is to send the control signal sent by the discharge signal generator 10, through the discharge electricity 4 control signal bus (Electrical Discharge Control Signal Bus) 20 is passed to each discharge power supply module such as low-voltage discharge module 30, high-pressure discharge module 31, secondary high-voltage module 32, trimming circuit module 33, and special processing circuit module 34, and each discharge power supply The generation of the module is adjusted by using the discharge power module setting device of the discharge power module board. Among them, the computer value set by the user is set to CNC data setting 1 and a normal / electrical Therefore, the read value (Normal / Arc Data Reading) 12 is transmitted to the discharge signal generator 10 through a PCI (ISA) bus 13 so that the discharge power can be based on the processing parameter conditions set by the user. This paper scale applies Chinese national standards (CNS) A4 specification (210X297 mm) (Please read the precautions on the back before • • mounting. Page)-Order-Line — 4— 504423 Ministry of Economic Affairs Printed by ASC B7 of the Central Bureau of Standards, Consumer Cooperative ~~ ^ ----------------- _ PA89071C.TWP-8/16 V. Description of the Invention (Dagger) ^ Provide the required discharge Energy for processing. In order to achieve the above-mentioned design, the present invention implements the discharge power supply circuit architecture with a modular design. The modularized power supply discharge system can be divided into a discharge power supply module board 40 as shown in FIG. 5 and as shown in FIG. 6. The discharge power supply motherboard 5 and 50 are shown in two parts. Please refer to FIG. 4 and FIG. 5 at the same time, the discharge power supply module board 40 can be adjusted by the discharge power supply module setting device 41 to set discharge modules such as the low voltage discharge module 30, the high voltage discharge module 31, and the secondary high voltage module 32. At the same time, the number and position of the discharge power module boards in the system can be adjusted elastically, making the system easy to install and maintain. In addition, the trimming circuit module 33 provided in the system can enable the system to perform trimming processing, and the special processing circuit module 34 provides special material processing, special discharge current waveform, mirror surface processing discharge circuit, etc., which makes the present invention The overall application is more flexible. As shown in FIG. 5, the discharge power module board 40 uses the discharge signal generator 15 to transmit the control signal through the discharge power control signal bus 2C to provide the ON-OFF switching hearing energy required by the ON-OFF switching rate. . The discharge power supply module board 40 uses the discharge power supply module setting device 41 to transmit the signals of the discharge power supply control signal bus 20 to the designated optical coupler 42 and receives them through the optical coupler 42 and converts them into Control the quasi-20 position of the driving stage 43, and then drive the subsequent stage switching circuit 44 through the driving stage 43. The D and S terminals of the metal oxide semiconductor field effect power transistor (MOSFET Transistor) are connected to the discharge circuit to generate the discharge pulse. Η in Figure 5 indicates the number of units that control the discharge power. The size of the discharge power module board 40 designed by Lennon and the number of signals connected to the connector connected to the discharge power control signal bus 20 and (Please read the back Note again. S__ Install · Page) (Order • " Line --_— This paper size applies Chinese National Standard (CNS) A4 specification (21〇χ297 mm) 504423 A7 B7 V. Description of the invention (PA89071C.TWP- 9/16 10 15 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs of the People's Republic of China to determine the number of η. According to the specifications of the discharge power system, set each- The number of discharge current segments of the discharge control unit 45 in the discharge power module board 40. Power supply type and function (high voltage, low voltage, secondary high voltage, special trimming, etc.) The discharge power module board is installed as shown in Figure 6. When the discharge power source motherboard 50 is shown, the signal of the discharge power control signal bus 20 can be decoded and transmitted to each unit 45 to control the discharge power source waveform and the discharge current. In order to protect the high-current discharge when the high-current discharge is turned off, the switching circuit 44 uses a SnubberCircuit to reduce the hole voltage and the vibration frequency. The inter-electrode discharge circuit connection device 46 feedback The discharge current of the control unit 45 of each section of the discharge power module board 40 is judged and compared by the overcurrent protection device 47. If the maximum protection current is exceeded, the overcurrent protection device 47 sends a disable signal (DisableSignal) to the photocoupler 42 Receiving the control signal for turning off the discharge power causes the subsequent stage MOSFET power transistor to turn off, temporarily stopping the generation of discharge current until the overcurrent protection device 47 judges and compares At the maximum protection current, the overcurrent protection device 47 sends an Enable Signal signal to the optocoupler 42 to start receiving the discharge power control signal to generate a discharge current. Please refer to FIG. 4 and FIG. 6 at the same time. Provides the discharge power control signal bus 20 and the discharge power circuit connection structure, which can flexibly insert the discharge power module board 40, the trimming circuit module 33, and the special processing circuit module 34 to achieve the general purpose. See Figure 6 As shown, the discharge power mother board 50 receives the discharge signal generator-9-This paper size is applicable to China National Standard (CNS) 8 4 Lin (210 > < 297 mm) (Please read the precautions on the back before installing. (^^ 4 pages) 504423 Α7 Β7 PA89071C.TWP-10/1 Printed by the Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 5. Disclosure of the invention ($), a discharge power control signal of 10, providing connection to the discharge power module board 40 Device 51 and discharge power circuit connector 52. Each discharge power module board connection device 51 in the discharge power mother board 50 is connected to the discharge power control signal bus 20 circuit, and the discharge power module board connection device Qin 51 is sequentially planned for two or five high voltage, high voltage discharges, The low-voltage discharge and trimming circuit module, the discharge power module board 40 is arranged on the connection device 51 of the discharge power motherboard 50 as planned. In Figure 6, η indicates the number of connections to the discharge power module board 40, and its value depends on the system's plan for the discharge power and the size limit of the discharge power motherboard 50. 10 In the discharge circuit, different current limiting resistors are connected to the discharge circuit connector 52 of the motherboard 50 of the discharge power supply. Different current segments are designed, and each segment must not exceed the maximum rated current that the MOSFET transistor can bear. When selecting the current-limiting resistor, the power consumed during discharge must be considered to avoid overheating of the current-limiting resistor. 15 Please refer to FIG. 7 'It is a block diagram of the hardware structure of the thinning discharge module board provided in the present invention. Since the processing time (Ton) of the thinning circuit is less than 1 microsecond (μδ), it is more necessary to increase and The structure of the discharge circuit with a fast falling response is different from the low-voltage discharge circuit. 'As much as possible, the capacitance effect of the discharge circuit is minimized. Because the trimming circuit uses a small current with a very narrow pulse width to process 20 pieces, 140 is used. Volts are used as a discharge power source to facilitate the success of the system. Because the trimming circuit uses a small current with a very narrow pulse width to process the workpiece, a fast rise and fall response is required to minimize the capacitance effect of the discharge circuit as much as possible. Therefore, the separately developed trimming circuit module board 33 is connected and fixed to Discharge-10- This paper size is applicable to China National Standard f (CNS) 8-4 specification (21 × 297 mm) (please read the precautions on the back first and then the page) Production period 423 A7 ------------ D, PA89071C.TWP-11/16 V. Description of the invention (f)… The power supply mother board 50 is used to control the trimming process in EDM. The trimming circuit module board 33 receives the control signal and receives it via the optical coupler 331, and then converts it to the level of the driving stage 332. The driving stage 332 drives the subsequent high-speed switching circuit 333. The positive and negative terminals are connected to the discharge circuit 5 to switch the discharge. The main characteristic of the trimming discharge circuit is that the switching frequency response of the MOSFET transistor of the subsequent high-speed switching circuit 333 is fast enough, and the delay of the rise of Tum ON and the decrease of Turn OFF is as small as possible. However, it is an important key to improve the speed of these response gate drives. 10 MOSFET transistors perform high-speed switching operations, and drive circuits with lower impedances must be used as much as possible, especially when the turn is off, the delay is more significant. The current-limiting resistor 334 uses a non-inductive resistor as much as possible, and is directly installed (ONBoard) on the trimming circuit module board 33. Η in FIG. 7 indicates the number of units for controlling the trimming circuit. The number of η is determined according to the size of the 15 trimming circuit module board 33 designed to be repaired and the withstand current of the connector connected to the discharge power control signal bus 20: The overall application of the system of the discharge power supply modularization device of the discharge processing machine provided by the present invention is shown in FIG. 8. The discharge power supply mother board 50 serves as a bridge between the discharge signal generator 10 and the discharge power supply module boards 30-33. And provide the connection device 51 of the discharge circuit of each group of 20 groups. Each discharge power supply module board 30-33 is arranged in each connection device 51 of the discharge power supply mother board 50 according to the plan, and each DC power supply (V.

Vl、V2、V3)、各限流電阻(Ri、R2、R3)、電極60及工作台 61,形成放電電源迴路系路;其中,νΰ為低壓直流電源, -11 - 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐)Vl, V2, V3), current limiting resistors (Ri, R2, R3), electrodes 60 and work table 61, forming a discharge power circuit system; of which, νΰ is a low-voltage DC power supply, -11-This paper is applicable to China Standard (CNS) A4 specification (210X297 mm)

經濟部中央標準局員工消費合作社印製 五、發明説明(丨σ) —Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs V. Invention Description (丨 σ) —

Vi為高壓直流電源,ν2為二次高壓直流電源,而V3為修細 直流電源。 低壓放電電源模組30採用多段電流並聯堆疊方式,所 以本發明可以產生任意放電波形,可應用於減少電極消 5耗,亦可在單發放電中產生微秒bs)等級的電流突波,以 排除放電加工過程中積竣現象。高壓放電電源模組31其功 能做為引弧,使得放電效率及穩定度提高,本系統除了適 用多段高壓電源外,亦可以產生多段引弧電流,以利在不 同狀況條及不同材質的加工。 10 若為大型模具加工或石墨加工往往需要大電流來加 工,本發明可利用堆疊方式繼續擴充加大電流能量,假設 一片放電電源模組板可產生60安培的峰值電流(1?);若需 180安培的峰值電流(Ιρ)的放電加工電流段數時,則可插入 三片放電電源模組板並聯達成。 15 所以當目前放電電源母板50的放電電源模組板連接裝 置51不敷使用時,可多加一片放電電源母板5〇來滿足系統 Μ*丄#又數的規劃。本設计對特殊加工迴路,如二次高壓在 引弧時間過長時加入之二次高壓放電模組32、修細放電模 組33、特殊材質放電加工迴路…等皆可以很有彈性的組合 20 應用。 【特點及功效】 本發明所提供之放電加工機放電電源模組化裝置與習 用技術相互比較時,本發明採用模組化架構設計,使得放 電電源系統易於安裝與維護;且其利用放電電源模組設定 -12 - 本紙張尺度適用ίΐ®家標準(CNS ) Α4規格(2丨〇><297公釐) ~~ --一~ (請先閲讀背面之注意事項再本頁} •裝. -訂 i線 504423 A7 B7 PA89071C.TWP-13/16 五、發明説明(I丨) 裝置調整放電電源模組板,可彈性組成多段放電電壓及電 流,具有可擴充性,更可減少配線,大幅降低電感效應影 響;就適用性而言,本發明除了適用雕模放電加工機的放 電電源系統,也適用於細孔放電加工機及創成放電加工 5機。 上列詳細說明係針對本發明之一可行實施例之具體說 明,惟該實施例並非用以限制本發明之專利範圍,凡未脫 離本發明技藝精神所為之等效實施或變更,均應包含於本 案之專利範圍中。 10 综上所述,本案不但在技術思想上確屬創新,並能較 習用物品增進上述多項功效,應已充分符合新穎性及進步 性之法定發明專利要件,爰依法提出申請,懇請貴局核 准本件發明專利申請案,以勵發明,至感德便。 (請先閲讀背面之注意事項再本頁) •裝· 訂 經濟部中央標準局員工消費合作社印製 -13- 本紙張尺度適用中國國家標準(CNS ) A4規格(210X297公釐)Vi is a high-voltage DC power supply, ν2 is a secondary high-voltage DC power supply, and V3 is a trimmed DC power supply. The low-voltage discharge power supply module 30 adopts a multi-stage current parallel stacking method, so the present invention can generate an arbitrary discharge waveform, which can be used to reduce the consumption of electrodes, and can also generate a microsecond bs) current surge in a single-shot discharge. Eliminate build-up during EDM. The function of the high-voltage discharge power module 31 is to initiate the arc, which improves the discharge efficiency and stability. In addition to the multi-stage high-voltage power supply, this system can also generate multiple stages of arc-ignition current to facilitate processing in different conditions and different materials. 10 If large currents are required for large mold processing or graphite processing, the present invention can continue to expand and increase the current energy by using a stacking method. Assuming a discharge power module board can generate a peak current of 60 amps (1?); When the number of discharge machining current segments with a peak current of 180 amperes (Iρ) is reached, three discharge power supply module boards can be inserted in parallel. 15 Therefore, when the current discharge power supply module board connection device 51 of the discharge power supply motherboard 50 is insufficient, an additional discharge power supply motherboard 50 may be added to meet the system's planning. This design can be very flexible for special processing circuits, such as the secondary high voltage discharge module 32, trimmer discharge module 33, special material discharge processing circuit ... 20 applications. [Features and effects] When the discharge power supply modularized device of the electrical discharge machine provided by the present invention is compared with the conventional technology, the present invention adopts a modular architecture design, which makes the discharge power system easy to install and maintain; and it uses the discharge power mold Group setting -12-This paper size is applicable to ΐΐ® Home Standard (CNS) Α4 size (2 丨 〇 > < 297 mm) ~~-一 ~ (Please read the precautions on the back before this page} -Order i-wire 504423 A7 B7 PA89071C.TWP-13 / 16 V. Description of the Invention (I 丨) The device adjusts the discharge power module board, which can flexibly form multiple discharge voltages and currents, has expandability, and can reduce wiring. Significantly reduce the influence of the inductance effect; in terms of applicability, in addition to the discharge power supply system of the engraving electrical discharge machining machine, the present invention is also applicable to fine-hole electrical discharge machining machines and 5 electrical discharge machining machines. The detailed description above is directed to the invention A detailed description of a feasible embodiment, but this embodiment is not intended to limit the patent scope of the present invention, and any equivalent implementation or change that does not depart from the technical spirit of the present invention should be included in this 10 In summary, this case is not only technically innovative, but also enhances the above-mentioned multiple effects over conventional items. It should have fully complied with the statutory invention patent requirements for novelty and progress, and was proposed in accordance with the law. To apply, please kindly ask your bureau to approve this invention patent application, in order to encourage invention, to the best of your merits. (Please read the notes on the back before this page) This paper size applies to China National Standard (CNS) A4 (210X297 mm)

Claims (1)

504423 A8 B8 C8 D8 PA89071C.TWP - 14 / 16 申請專利範圍 輕濟部中夬檩準局員κ消費合作社印製 一種放電加工機放電電源模組化装置,其包含有: 一可產生放電電源控制信號之放電信號產生板; 至少一個分別具有複數個放電電源模組板連接裝置以 及複數個放電迴路連接器之放電電源母板; 複數個可被選擇安插固定於該放電電源母板之各放電 電源模組板連接裝置上之放電電源模組板,其可藉由 各放電迴路連接器連接至相對應之放電電源電路,彈 性組成多段放電電壓及電流;以及 一放電電源控制信號匯流排,其可將該放電信號產生 板所送出之放電電源控制信號傳遞至指定的放電電源 模組板,並經由各放電迴路連接器,提供一放電時序 脈波至該等放電電源電路,完成最終放電程序者。 如申請專利範圍第1項所述之放電加工機放電電源模 組化裝置,其中該複數個放電電源模組板可被分別選 擇設定為一個低壓放電模組、一個高壓放電模組以及 —個二次高壓放電模組。 如申請專利範圍第2項所述之放電加工機放電電源模 組化裝置,其中該複數個放電電源模組板更包括有一 個修細迴路模組板。 ,申請專利範圍第2項所述之放電加工機放電電源模 、、且化裝置,其中該複數個放電電源模組板更包括有一 個特殊加工迴路模組板。 ,申請專利範圍第2項所述之放電加工機放電電源模 且化裳置,更包括有一放電電源模組設定裝置,其將本^___ 网豕檩準(CNS )八私胳(210X297公釐)~ 1· ί請先閱讀背面之注意事項再. •裝· 10 15 20 2· 3. 5 訂 —1 -線 504423 A8 B8 C8 D8 PA89071C.TWP - 15 / 16 經濟部中央標準局員工消費合作社印製 六、申請專利範圍 該放電電源控制信號鼠流排的放電電源控紹、號、 門別類傳送到指定的該等放電電源模組板,並可"又足 每-放電電源模組板的放電電流段數、電源型您及功 能,進而控制放電電源波形及放電電流大小者。 5 6·如申請專利範圍第1項所述之放電加工機放電電源模 組化裝置,其中該等放電電源模組板分別包括有一用 以接收該放電電源控制信號之光耦合器,經準位轉換 後,由一推動級推動一後級切換電路,再由一金屬氧 化物半導體場效功率電晶體(MOSFET Transistor)與該放 10 電電源電路連接,藉以切換產生該放電脈波者。 7.如申請專利範圍第6項所述之放電加工機放電電源模 組化裝置,其中該後級切換電路採用有一緩震電路 (Snubber Circuit)者。 如申請專利範圍第6項所述之放電加工機放電電源模 組化裝置,其中該等放電電源模組板更包括有一過電 流保護裝置,其在該放電電流超過一設定最大保護電 流時,關閉該光耦合器接收該放電電源控制信號者。 如申請專利範圍第2項所述之放電加工機放電電源模 組化裝置,其中該等放電電源模組板係採用多段電流 並聯堆疊架構,使該低壓放電電源模組可產生任意放 電電流波形者。 1〇·如申請專利範圍第9項所述之放電加工機放電電源模 組化裝置,其中該放電電流可選擇性地採用多片放電 電源模組板並聯堆疊控制方式產生。 8· ii--*------裝-- (請先閱讀背面之注意事項再本頁) 、1T 15 20 線 9. 15- 標準(CNS ) A4規格(210X297公釐) A8 B8 C8 -------------- D8 PA89071C.TWP -16/16 、申請專利範圍 11 ·如申請專利範圍第1項所述之放電加工機放電電源模 組化裝置’其中該放電電源母板上的各放電電源模組 板連接裝置不足以容納所有放電電源模組板時,該放 電電源模組化裝置可進一步加裝另外數個放電電源母 5 板,藉以容納所有放電電源模組板。 12·如申請專利範圍第6項所述之放電加工機放電電源模 組化裝置,其中各放電電源電路分別包括有複數個具 有不同電流段數的限流電阻,其被分別連接在該放電 電源母板的各放電迴路連接器中,各限流電阻的每一 10 電流段數不超過該等金屬氧化物半導體場效功率電晶 體(MOSFET Transistor)所承受的最大額定電流。 1 3 _如申請專利範園第3項所述之放電加工機放電電源模 組化裝置,其中該修細迴路模組板包括有一用以接收 該放電電源控制信號之光耦合器,經準位轉換後,由 15 —推動級推動一後級高速切換電路,再由一金屬氧化 物半導體場效功率電晶體(MOSFET Transistor)與該放電 電源電路連接,藉以切換產生該放電脈波者。 14·如申請專利範圍第13項所述之放電加工機放電電源模 組化裝置,其中該修細迴路模組板更包括有複數個具 20 有不同電流段數的典感限流邊阻’其被直接安裝(〇N Board)在該修細迴路模組板上。 -16- 本紙張尺度適用中國國家標準(CNS ) A4規格(2丨〇><297公釐) (請先閲讀背面之注意事項再本頁) -------裝-----.1 訂 ί · Η線 經濟部中央標準局員工消費合作社印製504423 A8 B8 C8 D8 PA89071C.TWP-14/16 The scope of patent application for the Ministry of Light Industry and China Associate Bureau member κ Consumer Cooperative Co., Ltd. printed a discharge power supply modularized device for discharge processing machines, which includes: a control signal that can generate discharge power supply A discharge signal generating board; at least one discharge power mother board having a plurality of discharge power module board connection devices and a plurality of discharge circuit connectors; a plurality of discharge power modules that can be selectively inserted and fixed on the discharge power mother board The discharge power module board on the assembly board connection device can be connected to the corresponding discharge power circuit through each discharge circuit connector to flexibly constitute multiple discharge voltages and currents; and a discharge power control signal bus, which can The discharge power control signal sent by the discharge signal generating board is transmitted to the specified discharge power module board, and through each discharge circuit connector, a discharge timing pulse wave is provided to these discharge power circuits to complete the final discharge procedure. As described in Item 1 of the scope of patent application, the discharge power supply modularization device of the discharge processing machine, wherein the plurality of discharge power supply module boards can be selected and set as a low-voltage discharge module, a high-voltage discharge module, and a two Secondary high voltage discharge module. The discharge power supply modularization device for an electric discharge processing machine as described in item 2 of the scope of the patent application, wherein the plurality of discharge power supply module boards further includes a thin circuit module board. The discharge power supply module of the electric discharge processing machine described in the second item of the patent application, and the device, wherein the plurality of discharge power supply module boards further includes a special processing circuit module board. The discharge power supply module of the electric discharge processing machine described in item 2 of the scope of the patent application, and the configuration is also included. It also includes a discharge power module setting device, which will be based on the CNS standard (210X297 mm). ) ~ 1 · ί Please read the precautions on the back first. • Packing · 10 15 20 2 · 3. 5 Order—1-line 504423 A8 B8 C8 D8 PA89071C.TWP-15/16 Staff Consumer Cooperatives, Central Standards Bureau, Ministry of Economic Affairs 6. The scope of application for patents. The discharge power supply control signal, discharge power control signal, serial number, and category of the power supply control signal are transmitted to the specified discharge power supply module boards. The number of discharge current segments, the type of power supply and the function, and then control the waveform of the discharge power supply and the size of the discharge current. 5 6 · The discharge power supply modularization device of the discharge processing machine according to item 1 of the scope of patent application, wherein the discharge power supply module boards each include an optical coupler for receiving the control signal of the discharge power supply. After the conversion, a post-stage switching circuit is pushed by a driving stage, and then a metal oxide semiconductor field effect power transistor (MOSFET Transistor) is connected to the amplifier 10 power supply circuit, thereby switching those who generate the discharge pulse. 7. The discharge power supply modularization device for an electric discharge machine according to item 6 of the scope of the patent application, wherein the post-stage switching circuit adopts a snubber circuit. The discharge power supply modularization device for an electric discharge processing machine as described in item 6 of the scope of patent application, wherein the discharge power supply module boards further include an overcurrent protection device, which turns off when the discharge current exceeds a set maximum protection current The photocoupler receives the discharge power control signal. For example, the discharge power supply modularized device of the discharge processing machine described in the second item of the scope of patent application, wherein the discharge power supply module boards adopt a multi-stage current parallel stacking structure, so that the low-voltage discharge power supply module can generate an arbitrary discharge current waveform. . 10. The discharge power supply modularization device for an electric discharge machine according to item 9 of the scope of the patent application, wherein the discharge current can be selectively generated by using a plurality of discharge power supply module boards connected in parallel and stacked. 8 · ii-* ------ Installation-- (Please read the precautions on the back before this page), 1T 15 20 cable 9. 15- Standard (CNS) A4 specification (210X297 mm) A8 B8 C8 -------------- D8 PA89071C.TWP -16/16, patent application scope 11 When the discharge power supply module connection devices on the discharge power supply motherboard are not enough to accommodate all discharge power supply module boards, the discharge power supply modularization device can be further equipped with 5 additional discharge power supply mother boards to accommodate all discharge power supplies. Module board. 12. The discharge power supply modularized device for an electric discharge processing machine as described in item 6 of the scope of patent application, wherein each discharge power supply circuit includes a plurality of current limiting resistors having different numbers of current segments, which are respectively connected to the discharge power supply. In each discharge circuit connector of the motherboard, the number of each 10 current segments of each current limiting resistor does not exceed the maximum rated current that the metal oxide semiconductor field effect power transistor (MOSFET Transistor) can bear. 1 3 _The discharge power supply modularization device of the electrical discharge processing machine as described in item 3 of the patent application park, wherein the trimming circuit module board includes a photocoupler for receiving the control signal of the discharge power supply. After the conversion, a high-speed switching circuit at the rear stage is pushed by the 15-drive stage, and then a metal oxide semiconductor field effect power transistor (MOSFET Transistor) is connected to the discharge power circuit to switch the one that generates the discharge pulse. 14. · The discharge power supply modularized device for an electric discharge machine as described in item 13 of the scope of the patent application, wherein the trimming circuit module board further includes a plurality of typical current-limiting current-limiting edge resistors having 20 different numbers of current segments. It is directly installed (On Board) on the thin circuit module board. -16- This paper size applies to Chinese National Standard (CNS) A4 specification (2 丨 〇 > < 297 mm) (Please read the precautions on the back before this page) ------- installation --- -. 1 Order Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs
TW89121230A 2000-10-11 2000-10-11 Electrical discharge power supply modular device of an electrical discharge machine TW504423B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7709764B2 (en) 2004-04-19 2010-05-04 Mitsubishi Denki Kabushiki Kaisha Power supply apparatus for electric discharge machine and power supply control method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7709764B2 (en) 2004-04-19 2010-05-04 Mitsubishi Denki Kabushiki Kaisha Power supply apparatus for electric discharge machine and power supply control method

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