【正文】 d Coil Holder固定線架The “Upper and Lower Coil Holders” of such structural “Coil holder” have been fixed above the “Upright Column”. It can not be adjusted. It has the advantages of the fine Rigidity and sound Machining Stability. But its max. shorting lies in the small cutting range which can not be regulated. Therefore it has limitations for the product machining. At present, it has been gradually replaced by the “Adjustable Coil Holders”. 此種結(jié)構(gòu)線架其上下懸臂固定于立柱之上，不可調(diào)節(jié)。Coil Holder線架“Coil holder” is a device which supports the “Electrode Wire”, adjusts the “Cutting Thickness” and carries out various “Taper Cutting”. It installs the “Electrode Wire” onto “WorkPiece” which has been chucked in the “WorkTable” through “WirePositioning Wheel”, “Conductive Device”, “GuideWheel Group”. “Conductive Block” electrifies “Electrode Wire” under action of “HF Pulse Mains”. The “Liquid Medium” ejected from “Liquid Injection Device” has been broken down to form “Spark Discharge” which pletes the “WorkPiece Cutting”. 線架是用來支承電極絲，調(diào)節(jié)切割厚度及進(jìn)行各種錐度切割的一個(gè)裝置。由于左右撞塊及行程開關(guān)的作用，使纏繞在貯絲筒的電極絲實(shí)現(xiàn)往復(fù)運(yùn)動(dòng)，來完成對(duì)工件的切割。WorkTable工作臺(tái)The Worktable is posed of two “Upper and Lower Tool Carriages” making relative cross movements and precise “LeadScrew Drive Pair”. Please refer to Table 2 and 3 for the “Drive System”.工作臺(tái)是由二塊相對(duì)十字運(yùn)動(dòng)的上下拖板及精密絲杠傳動(dòng)副所組成，其傳動(dòng)系統(tǒng)見圖2和圖3。Machine Tool Body床身“Machine Tool Body” is a basic part of the “Machine Tool”. If all these ponents have been installed in the body, it can guarantee the high accuracy to the whole system because of the enough rigidity and vibrationresistance. There are two “Hoisting Screws” mounted respectively in the foreandaft sides of the “Machine Tools” below DK7750 which have been produced by this Company. They function as hanging the “Machine Tool”. It can remove the “Hoisting Screws” after installation. The largesize Machine Tools use the “Hoisting Holes”. The “Supporting Feet” with the adjustable level have been installed in the bottom of the “Machine Tool Body”. 床身是機(jī)床的基礎(chǔ)件。機(jī)械系統(tǒng)以床身為基礎(chǔ)，包括坐標(biāo)工作臺(tái)、運(yùn)絲系統(tǒng)、冷卻系統(tǒng)。機(jī)床通常采用鉬絲或硬性黃銅絲作為工具電極，在高頻脈沖電壓作用下，利用液體介質(zhì)被擊穿后形成火花放電，在火花通道中瞬間產(chǎn)生大量的熱能，使工件表面的金屬熔化甚至氣化，加上液體介質(zhì)的共同作用，而使金屬被迅速蝕除下來。Main Use主要用途It processes various molds such as rubber and plastic molds, punch die and so on.加工各類模具：橡塑模、沖模等等。封面：DK77 Series NC EDM WireCutting Machine ToolDK77系列數(shù)控電火花線切割機(jī)床Use Description使用說明書Ningbo Zhongyuan Machine Tool Co., Ltd. 寧波中原機(jī)床有限公司Catalogue目錄Machine Tool Use機(jī)床用途Machine Tool Features機(jī)床特點(diǎn)Main Use主要用途Structure and Principle of Operation工作原理及結(jié)構(gòu)Principle of Operation工作原理Mechanical System Structure機(jī)械系統(tǒng)結(jié)構(gòu)Technical Parameters技術(shù)參數(shù)Characteristic Model Stipulations特性型號(hào)的規(guī)定Basic Parameters基本參數(shù)Machine Tool Handling and Installation機(jī)床的搬運(yùn)與安裝Machine Tool Handling and Hoisting機(jī)床的搬運(yùn)與吊裝Machine Tool Installation機(jī)床的安裝Machine Tool Adjustment and Operation機(jī)床調(diào)整與操作Preparation Works準(zhǔn)備工作Coil Holder Adjustment線架調(diào)整Worktable Regulation工作臺(tái)調(diào)整Kinetic Wire Component Adjustment and Electrode Wire Coiling運(yùn)絲部件調(diào)整及電極絲繞裝Guide Wheel Adjustment導(dǎo)輪的調(diào)整WorkPiece Clamping工件裝夾Operation and Points for Attention操作及注意事項(xiàng)Machine Tool Maintenance and Trouble Removal機(jī)床的維護(hù)與故障的排除Machine Tool Maintenance機(jī)床的維護(hù)Common Troubles and Removals of the Machine Tool機(jī)床的常見故障與排除Vulnerable Part Table易損零件表Machine Tool Running System Installation and Use Description機(jī)床電器安裝及使用說明Summary of Machine Tool Running System and Control System電器控制系統(tǒng)概述Common Troubles of Machine Tool Running System: Causes and Removals電器常見故障：原因及排除Safety Protection Measures of Machine Tool Running System機(jī)床電器安全保護(hù)措施Schematic Drawing of 25V Drive Head Mains 25伏驅(qū)頭電源原理圖Schematic Drawing of Machine Tool Running System機(jī)床電器原理圖DK77 SeriesDK77系列Use Description of Machine Tool機(jī)床使用說明書38 Pages Total共38頁P(yáng)age 1第一頁Machine Tool Use機(jī)床用途Machine Tool Features機(jī)床特點(diǎn)Max. feature of this serial product lies in the fact that it has no special requirements to the processed metal material properties. In principle, it can process all the conductive materials such as superhard and hard alloy, quenching materials, stainless steel ductile materials, various magnet steel fragile materials, uneasilyclamped thin wall spares etc. If the Machine Tool gets the aid of the auxiliary extralarge specification of “Taper Cutting Device” and “Responsive MicroComputer System” produced by this Company, then it can gain the satisfactory results in processing all kinds of the special spares which terrify other Machine Tools. Following the constant appearance of the hightech products, it continuously prospers the national economy. We predict that the characteristics of this serial product will be further developed and utilized. It will find favor in the eyes of vast customers.本系列產(chǎn)品最大特點(diǎn)是對(duì)被加工的金屬材料性質(zhì)無特殊要求，原則上凡導(dǎo)電材料均可加工。隨著高科技產(chǎn)品不斷出現(xiàn)，國(guó)民經(jīng)濟(jì)的不斷繁榮，我們預(yù)言，本系列產(chǎn)品的特點(diǎn)將進(jìn)一步得到開發(fā)利用，受到各位客戶的歡迎。Structure and Principle of Operation工作原理及結(jié)構(gòu)Principle of Operation工作原理The serial product applies “Electrical Discharge Machining” mechanism. It gets the auxiliary aid from electromechanically integrated product which bines Automated Control with MicroComputers. The Machine Tool usually adopts “Molybdenum Wire” or “Hard Brass Wire” as the “Tool Electrode”. Under the “High Frequency Pulse Voltage Functions”, it utilizes the effect that it forms “Spark Discharge” after the liquid medium has been broken down. It instantaneously produces great volumes of heat energy in the Spark Channel. It melts or even gasifies the metal in the surface of the WorkPiece. With the joint action of the liquid medium, the metal has been rapidly eroded and removed. The WorkPiece which has been chucked in the coordinates WorkTable has been processed into various required shapes according to the preformulated program under the MicroComputer Control.本系