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Working principle of slow wire processing

 Slow wire walking, also called low-speed wire walking, is a kind of CNC machining machine tool that uses continuously moving fine metal wire as an electrode to pulse spark discharge on the workpiece to generate a high temperature of over 6000 degrees, ablate metal and cut into a workpiece. The principle of wire processing is the phenomenon that there is a gap between the wire electrode and the workpiece, and the metal is removed by continuous discharge. Since the slow-moving wire cutting machine adopts the method of wire electrode continuous feeding, that is, the wire electrode is processed during the movement, so even if the wire electrode is worn out, it can be continuously supplemented, so it can improve the machining accuracy of the parts and slow the wire. The surface roughness of the workpiece processed by the cutting machine can usually reach Ra=0.8μm and above, and the roundness error, linear error and dimensional error of the slow-moving wire cutting machine are much better t

Classification of CNC Machining Occupation Levels

1. Blue-collar layer:   That is, CNC machining operation technicians, proficient in machining and CNC machining process knowledge, proficient in the operation and manual programming of CNC machine tools (attributes: automated machine tools), understand automatic programming and simple maintenance of CNC machine tools (attributes: automated machine tools), such There is a large market demand for personnel, and they are suitable for operating workers of CNC machine tools (attributes: automated machine tools) in the workshop, but due to their single knowledge, their wages will not be much higher.   2. Gray collar layer:   One, CNC machining programmer:   Master the knowledge of 5 Axis CNC machining Aluminum   technology and the operation of CNC machine tools (attributes: automated machine tools), be familiar with the design and manufacturing expertise of complex molds (title: mother of industry), and be proficient in 3D CAD/CAM software, such as UG, GOOGLE PRO/E, etc. ; Familiar with CNC

Hydrostatic guideway of CNC machining lathe

The static pressure slide rail (TTW guide) of the CNC machining lathe transfers the oil with a certain pressure through the throttle to the oil cavity between the sliding surfaces of the slide rail (TTW guide) to form a pressure oil film to float the moving parts , Make the sliding rail (TTW guide) surface in a pure liquid friction state.   CNC machining General CNC machining usually refers to computer digital control precision machining, CNC machining lathe, CNC machining milling machine, CNC machining c17200   beryllium   copper   and milling machine, etc. The feed route of finishing is basically carried out along the part contour sequence. Therefore, the focus of determining the feed route is to determine the feed route of rough machining and idle stroke. In the numerical control processing, the control system issues instructions to make the tool perform various motions that meet the requirements, and the shape and size of the workpiece are expressed in the form of numbers and lette

Do you know the machine tool structure in slow wire processing?

 With the continuous development of society, the mechanical processing technology of all walks of life in China has been continuously improved. According to people’s needs and market needs, today’s processing technology has become more and more mature. In recent years, slow-moving wire processing has developed rapidly. It has spread throughout our lives in less than a few years and has brought great help to our production. Slow wire processing is a kind of workpiece cutting. The process is very delicate and the process flow is various. The use not only brings extreme products to the product. With the great convenience, people are more at ease in application and will not cause sparks to affect us. Therefore, for slow-moving wire processing, how much do you know about the structure of the machine tool?

For slow-moving wire processing, this is a relatively complicated process. In order to make it more refined and excellent, we must first know its process and machine structure so that it can function better in the future. We help produce our products. Wire walking is a processing machine tool that uses continuously moving fine metal wires as electrodes to perform pulse spark discharge erosion on the workpiece and cut into shape.

The main body of slow wire processing

  • 1. There are guide rails on the fuselage, using high hardness and wear-resistant materials, and manual hydraulic lubricating oil is added, and the oil pipe flows to each guide rail to achieve lubrication. To reduce the influence of friction coefficient, there are two for each axis. There are also machine tools that use aerostatic guide rails. The friction coefficient of the guide rail is close to zero.
  • 2. The screw adopts spiral displacement, which is determined by the servo speed motor. At present, the minimum movement of a manual single step is 0.001mm. The length of the screw determines the movable range of the machine tool. The screw gap can be measured and corrected by modifying the system parameters. The screw forms a shaft.
  • 3. Secondly, regarding the servo motor, the speed of the servo motor depends on the voltage level selected by the main board of the servo box. The minimum step distance of the motor is the displacement equivalent of 0.0001MM, and each axis has it.
  • 4. After the limit switch (closed switch), the limit switch is set at the left and right ends of the screw displacement range, that is, the actual moving range of the screw. When the machine tool moves to the limit switch is closed, the electrical signal is input to the main board and the output signal of the main board Stop the operation of the servo motor, there are two for each axis.
  • 5. The deceleration switch (close switch) is set in the limit switch. When the screw rod moves to the point where the limit deceleration switch is closed, the electrical signal is input to the main board, and the main board output signal reduces the speed of the servo motor. Each axis has two No. The closing switch is set in the limit switch. When the screw rod displacement is close to the limit deceleration switch, we must master the material selection and structure, and the application quality is good. The subsequent operations can work better and produce better product.

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