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 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 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
1. Analysis of the structure, material and process of shaft parts
(1.)Function and structure of shaft parts
Shafts are used to support transmission parts and transmit torque or movement. The shaft needs to bear the load during work to ensure a certain degree of rotation accuracy. The machining surface of shaft parts usually has inner and outer cylindrical surfaces, inner and outer conical surfaces, step planes and end planes, as well as threads, splines, keyways and grooves.
(2. )Materials and blanks of shaft parts
The materials of shaft parts generally include carbon structural steel and alloy structural steel
The blanks of shaft parts include round bars, forgings, and steel castings.
(3.) Analysis on the processing technology of shaft parts
①The common axis is the radial design benchmark for each rotating surface. For shafts with high accuracy requirements, the axis of the center holes at both ends can be used as the radial machining datum; for shafts with low accuracy requirements and for rough machining, the outer circular surface can be used as the machining datum
②Machining in the order of rough turning→semi-finishing turning→finishing turning, the shafts with high precision requirements should be arranged for grinding.
③The spline, keyway, and thread processing on the shaft are arranged after turning and before cutting; for the shaft that needs to be quenched, the thread processing is placed after surface quenching
④When the shaft blanks are forgings, normalizing treatment should be arranged, and important shaft parts should undergo multiple heat treatments
Typical process of shaft parts
2.Analysis of gear shaft processing technology
（1.）Analysis of parts
（2.）Blank selection
（3.）Division of processing stages: divided into three stages: roughing, semi-finishing, and finishing
<1>Roughing stage: flush the end face, punch the center hole, and rough the outer circle
<3>Finishing stage: study the center hole, rough/finish two outer circles of 20, taper 1:10 truncated cone/30 gear top circle
（4.）Benchmark selection: rough turning adopts the outer surface and the center hole as positioning benchmarks, and adopts "one clamp and one top" turning,Two center holes are used as positioning reference when finishing turning and grinding
（5.）Heat treatment process: the quenching and tempering process is placed after the rough turning process and before the semi-finishing process; the gear quenching is before the grinding process
（6.）The processing process of single-piece and small-batch production
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