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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

The difference between CNC machining, CNC machining and traditional machining

 Numerical control machining is the same as CNC machining. The production process is derived from the conventional machining technology of daily life. It is an organic combination of conventional machining technology, computer numerical control technology, computer-aided design and auxiliary information technology. Due to the continuous innovation and development of electric tools, more and more parts need to be precisely processed in modern manufacturing, and the requirements for machining accuracy and surface complexity of the workpiece are also increasing. Therefore, CNC machining has received widespread attention, but in terms of saving resources and costs, CNC machining is still more expensive than traditional machining time. The following is our specific situation to introduce the difference between CNC machining and traditional machining technology.



1. Machining technology

In the ordinary CNC machining process, whether it is positioning datum, clamping method, tool, cutting method analysis, etc., it can be simplified through a process, but the data and machining production process are more complicated, and we need to carry out these influencing factors. Fully considered, and even for the same machining task, the CNC machining process can have multiple design solutions, and multiple machining parts and machining tools can be used as the main line of development for construction process arrangements. The process has more diversified characteristics , This is the difference between CNC machining process and traditional machining process.

2. Power tools and fixtures

In the CNC machining process, not only the coordinate direction of the fixture and the machine tool must be determined, but also the size relationship between the part and the machine tool coordinate system must be coordinated. In addition, the two steps of positioning and clamping need to be effectively controlled during the clamping process. Under the traditional machining technology, due to the limited machining capacity of the machine tool itself, it is necessary to perform multiple clamping during the machining. As well as the need to use special fixtures, the design and manufacturing costs of fixtures have risen, which invisibly increases production costs. The positioning of the CNC machining process can be used to debug the instrument. In most cases, no special fixture design is required, so its cost is relatively low.

3. Tool

In the production process of CNC machining, the selection of tools needs to be analyzed and determined according to the machining technology and machining methods. Especially in CNC machining, the use of information for high-speed cutting can not only help improve the efficiency of machining enterprises, but also the quality of processed products can be socially guaranteed, effectively reducing the probability of cutting deformation and shortening the machining cycle, so the demand for cutting tools Further increase.

 


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