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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

The function of data acquisition card in generator test system

  The battery of the automobile generator test system adopts the ordinary car battery, which needs to be fully charged before the test to provide excitation power for the automobile generator.The speed sensor uses the LJ12A4-Z/BY inductive proximity switch as the sensor. This is a non-contact detection device that can convert the generator speed into a voltage signal output, which is transmitted to the main control computer through the data acquisition card.

The multi-function data acquisition card adopts PCI-6034E type. This type of data acquisition card is a multi-function data acquisition control card based on 32-bit PCI bus. It supports DMA mode and buffer mode; supports unipolar and bipolar analog signal input and resolution The rate is 16bits, the sampling frequency is 200kS/s; the signal input range is ±10V, 16 single-ended/8 differential analog input channels; TTL digital I/O port, 2 24-bit timer counters and other functions.

In order to measure the no-load characteristics, output characteristics and external characteristics of automobile generators, the virtual instrument software LabVIEW system interface is designed according to actual needs.After the hardware is connected, the measurement starts. First, the no-load measurement is performed, that is, to keep the generator no-load, the output current is 0, and the relationship between the voltage at the output terminal of the generator and the speed is measured.Then measure the output characteristics, that is, the generator terminal voltage is maintained at 14V, and the relationship between the generator output current and the generator speed is measured to determine the no-load speed and the full-load speed of the generator.

*After measuring the external characteristics of the generator, that is, the generator maintains a constant speed, and the relationship between the generator terminal voltage and the output current is measured. In the actual measurement, the generator speed is adjusted to 2000r/min. Through the measurement of the above three characteristic curves, the performance of the tested automobile generator can be judged.

The automotive parts and parts machining, PTJ Shop offers the highest degree of OEM service with a basis of 10+ years experience serving the automotive industry. Our automotive precision shop and experts deliver confidence. We have perfected the art of producing large component volumes with complete JIT reliability, backed by the quality and long-term reliability our customers expect.

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