封面：DK77 Series NC EDM Wire-Cutting Machine Tool DK77系列数控电火花线切割机床Use Description使用说明书Ningbo Zhongyuan Machine Tool Co., Ltd.宁波中原机床有限公司Catalogue目录Machine Tool Use机床用途Machine Tool Features机床特点Main Use主要用途Structure and Principle of Operation工作原理及结构Principle of Operation工作原理Mechanical System Structure机械系统结构Technical Parameters技术参数Characteristic Model Stipulations特性型号的规定Basic Parameters基本参数Machine Tool Handling and Installation机床的搬运与安装Machine Tool Handling and Hoisting机床的搬运与吊装Machine Tool Installation机床的安装Machine Tool Adjustment and Operation机床调整与操作Preparation Works准备工作Coil Holder Adjustment线架调整Worktable Regulation工作台调整Kinetic Wire Component Adjustment and Electrode Wire Coiling 运丝部件调整及电极丝绕装Guide Wheel Adjustment导轮的调整Work-Piece Clamping工件装夹Operation and Points for Attention操作及注意事项Machine Tool Maintenance and Trouble Removal机床的维护与故障的排除Machine Tool Maintenance机床的维护Common Troubles and Removals of the Machine Tool机床的常见故障与排除Vulnerable Part Table易损零件表Machine Tool Running System Installation and Use Description 机床电器安装及使用说明Summary of Machine Tool Running System and Control System电器控制系统概述Common Troubles of Machine Tool Running System: Causes and Removals电器常见故障：原因及排除Safety Protection Measures of Machine Tool Running System机床电器安全保护措施Schematic Drawing of 25V Drive Head Mains25伏驱头电源原理图Schematic Drawing of Machine Tool Running System机床电器原理图DK77 SeriesDK77系列Use Description of Machine Tool机床使用说明书38 Pages Total共38页Page 1第一页Machine Tool Use机床用途Machine Tool Features机床特点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 super-hard and hard alloy, quenching materials, stainless steel ductile materials, various magnet steel fragile materials, uneasily-clamped thin wall spares etc. If the Machine Tool gets the aid of the auxiliary extra-large specification of “Taper Cutting Device”and “Responsive Micro-Computer 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 high-tech 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.本系列产品最大特点是对被加工的金属材料性质无特殊要求，原则上凡导电材料均可加工。
如超硬、硬质合金、淬火材料；如不锈钢类的韧性材料；各类磁钢的脆性材料；不易装夹的薄壁零件。
若机床辅以本公司制造的特大规格锥度切割装置与响应微机系统，那么对其他机床望而生畏的各种特异零件加工都能取得令人满意的效果。
随着高科技产品不断出现，国民经济的不断繁荣，我们预言，本系列产品的特点将进一步得到开发利用，受到各位客户的欢迎。
Main Use主要用途It processes various molds such as rubber and plastic molds, punch die and so on.加工各类模具：橡塑模、冲模等等。
It processes the special materials of fragile materials, stainless steel ductile materials, super-hard materials.加工特殊材料：脆性材料、不锈钢韧性材料、超硬材料。
It processes the complex-shape spares such as the tapered upper and lower specially-shaped spares and so forth.加工复杂形状零件：带锥度的上下异形零件等。
Structure and Principle of Operation工作原理及结构Principle of Operation工作原理The serial product applies “Electrical Discharge Machining”mechanism. It gets the auxiliary aid from electro-mechanically integrated product which combines Automated Control with Micro-Computers. 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 Work-Piece. With the joint action of the liquid medium, the metal has been rapidly eroded and removed. The Work-Piece which has been chucked in the coordinates Work-Table has been processed into various required shapes according to the pre-formulated program under the Micro-Computer Control.本系列产品是应用“放电加工”机理，辅以自动控制及微机相结合的机电一体化产品。
机床通常采用钼丝或硬性黄铜丝作为工具电极，在高频脉冲电压作用下，利用液体介质被击穿后形成火花放电，在火花通道中瞬间产生大量的热能，使工件表面的金属熔化甚至气化，加上液体介质的共同作用，而使金属被迅速蚀除下来。
装夹于座标工作台上的工件在微机控制下按预行编制的程序被加工出各种所需的形状。
Please Refer to Diagram 1 for its Basic Composition 其基本组成见图1File文件Programming编程Reader输入机Power Amplification功放Micro-Computer微机Variable Frequency变频Detection检测Calculation System运算系统Step-Motor步进电机Machine Tool机床Pulse Mains脉冲电源Diagram 1图1Machine Tool Composition Diagram机床组成方框图Page 2第二页We can see from the above diagram that the whole system is composed of the “Computer S ystem”,“Machine Tool Control System”, “Mechanical System”. The Processing Documents”form “Computer-Input Machine Tool Control System”through programming. The “Control System”controls the “Machine Tool”to complete the program actions and therefore finishes the Processing Instructions. The “Mechanical System” is based upon the “Machine Tool Body”. It includes the “Coordinates Work-Table”, “Kinetic Wire System”, “Cooling System”.由上图可见整个系统主要由计算机系统、机床控制系统和机械系统组成。