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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

How Do Cnc Swiss Machines Work

How Do Cnc Swiss Machines Work Save 0 What Is Swiss Machine –The full name of the walking CNC lathe, it can also be called the spindle box mobile CNC automatic lathe, the economical turning and milling compound machine tool or the slitting lathe. It belongs to precision machining equipment, which can complete compound  machining such as turning, milling, drilling, boring, tapping, and engraving at one time. It is mainly used for batch  machining of precision hardware and special-shaped shafts. This machine tool first originated in Germany and Switzerland. In the early stage, it was mainly used for precision machining of military equipment. With the continuous development and expansion of industrialization, due to the urgent needs of the market, it was gradually applied to the  machining of civilian products; the development of similar machine tools in Japan and South Korea Earlier than China, it was mainly used in the military industry in the early days. After the war, it was gradually

Spring Design Attention And Roll Forming Method

Spring Design Attention And Roll Forming Method The coiling characteristics and methods of springs are divided into cold coiling method and hot coiling method. Cold winding method: When the diameter of the spring wire is less than 8mm, the cold winding method is adopted. High-quality carbon spring steel wire is usually first cold drawn and then heat treated. After winding, it is generally not quenched, but only tempered at low temperature to eliminate the internal stress during winding. Hot-rolling method: Springs with larger diameter (>8mm) spring wire should use hot-rolling method. Hot rolled springs must be quenched and tempered at medium temperature. The Design Process Of Various Springs ·          Installation space: When designing a  compression spring , it is necessary to have a clear understanding of the space required for the installation of the spring, in order to effectively grasp the basic manufacturing conditions of the compression spring, including the outer diam

The configuration method of the spindle bearing of the CNC machining machine tool

The configuration method of the spindle bearing of the CNC machining machine tool

 

Generally, the spindle components of medium and small CNC machining machine tools mostly use rolling bearings (bearing) as the spindle support. At present, there are mainly the following three deployment methods:

 

1. The front support adopts double row short cylindrical rollers

 

Bearing and 60. 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 letters, and the processing required by the manufacturing technology. It generally refers to the process of processing parts on CNC machine tools. In order to improve the degree of production automation, shorten the programming time and reduce the cost of CNC machining, a series of advanced CNC machining technologies have been developed and used in the aerospace industry. Angular contact double row radial thrust ball bearing combination, the rear support adopts radial thrust ball bearing. This configuration (deploy) method greatly improves the comprehensive rigidity of the spindle, which can meet the requirements of powerful cutting, and is widely used in the spindle of various CNC machine tools (attributes: automated machine tools). The rear bearing of this configuration can also adopt a cylindrical roller bearing to further improve the radial rigidity of the rear support.

 

2. The front support adopts high-precision (precision) double row direction

 

Heart thrust ball bearings (bearing). 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 letters, and the processing required by the processing technology. It generally refers to the process of casting alloy parts on CNC machine tools. In order to improve the degree of production automation, shorten the programming time and reduce the cost of CNC machining, a series of advanced CNC machining technologies have been developed and used in the aerospace industry. ?Numerical control machine tool (attribute: automated machine tool) spindle bearing configuration (deploy)? Centripetal thrust ball bearing has good high-speed performance, the maximum speed of the spindle can reach 4000r/min, but its load capacity is small, only suitable for high-speed, light load And precision (precise) CNC machine tool spindle. In order to improve the rigidity of the main shaft in this deployment mode, the front support can be combined with four or more bearings, and the rear support can be combined with two bearings.

 

3. The front and rear bearings (bearing) adopt double-row and single-row tapered roller bearings. This type of bearing can withstand large radial and axial forces, so that the spindle can withstand heavy loads, especially strong dynamic loads, with good rigidity, and installation and Good debugging performance. CNC machining General CNC machining usually refers to computer digital control precision machining, CNC machining lathe, CNC machining milling machine, CNC machining boring 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. However, this configuration (deploy) limits the maximum speed and accuracy (precision) of the spindle, and is only suitable for the spindles of medium-precision, low-speed and heavy-duty CNC machine tools (attributes: automated machine tools).

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