Wire Electrical Discharge Machining (WEDM) belongs to the field of electrical machining. It was discovered by the former Soviet Union's Lazarunko couple that the instantaneous high temperature of electric discharge can cause local metal to melt, oxidize, and be corroded off when studying the phenomenon and causes of switch contact corrosion damage caused by spark discharge, thus creating and inventing the method of electric discharge machining. The wire cutting machine was also invented in the former Soviet Union in 1960, and China was the first country to use it for industrial production. Free positive ions and electrons accumulate in the field, quickly forming an ionized conductive channel. At this stage, a current is formed between the two boards. This leads to countless collisions between particles, forming a plasma zone that quickly rises to a high temperature of 8000 to 12000 degrees Celsius, instantly melting some materials on the surfaces of the two conductors. At the same time, due to the vaporization of the electrode and dielectric, a bubble is formed, and its pressure regularly rises to a very high level. Then the current is interrupted and the temperature suddenly drops, causing bubbles to explode inward. The generated power throws the melted material out of the crater, and then the corroded material condenses back into small spheres in the dielectric liquid, which is discharged by the dielectric liquid. Then, through the monitoring and control of NC control, the servo mechanism executes to make this discharge phenomenon uniform and consistent. Electric spark wire cutting machines can be divided into high-speed reciprocating wire cutting electrical discharge machines (commonly known as "fast wire cutting") based on wire speed There are three types of low speed unidirectional wire cut electrical discharge machining machines (commonly known as "slow wire") and vertical wire electrical discharge machining tool with rotation wire. It can also be divided into single column cross workbench type and double column type (commonly known as gantry type) according to the form of workbench. The reciprocating wire EDM machine tool has a wire cutting speed of 6-12 mm/s, which is an original model in China. Since September 1970, the "Digital Program Automatic Control Wire Cutting Machine Tool" has been successfully developed by the state-owned Changfeng Machinery Factory under the Third Ministry of Machinery Industry, which is the first of its kind in China. In 1972, the Third Ministry of Machinery Industry conducted a technical appraisal on the CKX CNC wire cutting machine tool produced by the factory, believing that it had reached the advanced level in China at that time. In 1973, according to the decision of the Third Ministry of Machinery Industry, the CNC wire cutting machine tool numbered CKX-1 began mass production. In September 1981, we successfully developed the coordinate CNC machine model DK3220 with taper cutting function. The biggest feature of the product is its 1.5 degree taper cutting function. Significant technical improvements have been made to the wire cutting machine tool. With the gradual improvement of large taper cutting technology, significant progress has been made in the cutting process of variable taper and upper and lower irregular shapes. The breakthrough in thick cutting technology has greatly improved the accuracy of transverse and longitudinal sections, with machining thicknesses exceeding 1000mm. Make the reciprocating wire cutting machine tool more advantageous. Simultaneously meeting the needs of domestic and foreign customers. The number of such machine tools is growing rapidly, from an annual output of 2-3 thousand units to tens of thousands of units. The stock of reciprocating wire cutting machine tools in China has reached more than 200000 units, which are used in various low-end mold manufacturing and special parts processing, becoming one of the most widely used types of CNC machine tools in China. However, due to the inability of the reciprocating wire cutting machine to implement constant tension control on the electrode wire, the electrode wire shakes greatly and is prone to wire breakage during the processing. Due to the reciprocating use of electric grade wires, it can cause electrode wire loss, reduced machining accuracy, and surface quality