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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

Elimination of Gear Backlash in CNC Machining Feed System

Elimination of Gear Backlash in CNC Machining Feed System   The transmission gear in the feed system of the CNC machining machine tool must eliminate the transmission gap between the meshing gears as much as possible, otherwise the motion will lag behind the command signal after each reversal of the feed system, which will affect the machining accuracy (accuracy) ). There are the following two common methods for CNC machining machine tools to eliminate the transmission gear gap.   1. Rigidity adjustment method   The rigid adjustment method is an adjustment method that cannot be automatically compensated for the tooth side clearance after adjustment. Therefore, the pitch tolerance and tooth thickness of the gear must be strictly controlled, otherwise the flexibility of the transmission will be affected. This adjustment method has a relatively simple structure and a better transmission rigidity.   (1) Eccentric shaft adjustment method   As shown in Figure 610, the gear 1 is mounted on th

Basic safety requirements for mechanical equipment in cnc machining

The basic safety requirements of mechanical equipment in cnc machining are mainly that the layout of mechanical equipment is reasonable, which is convenient for operators to load and unload workpieces, observe processing, and remove debris. At the same time, Yaoyao is convenient for maintenance personnel to inspect and repair. The strength and rigidity of the parts and components of the mechanical equipment in cnc processing must meet the safety requirements, and the installation must be firm and not malfunction.

According to relevant safety requirements, the mechanical equipment in cnc machinined must be equipped with reasonable, reliable safety devices that do not affect the operation. E.g:

1. For the rotating parts and components in cnc processing, safety protection devices such as protective covers, protective baffles, and protective railings should be installed to avoid the occurrence of twisting.

2. For parts and components that can cause dangerous accidents such as overpressure, overload, overtemperature, overtime and overtravel in cnc processing, safety devices should be installed. Whenever a dangerous situation occurs, the safety device acts to eliminate the danger and prevent it. The accident happened.

3. When some actions in cnc processing need to warn or remind people, signal devices or warning signs should be installed.

4. For some parts and components that cannot be reversed in the cnc processing, interlocking devices should be installed. That is, a certain action must be performed after the previous action is completed, otherwise it will not be possible to perform the action. This will ensure that accidents will not occur due to the wrong sequence of actions.

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