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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 foundation of the anti-force roller test bench of the automobile is modified

Based on the traditional counter-force roller test bench used to measure cars without anti-lock brake system, it is modified. In order to increase the speed of the roller, the output shaft of the motor is directly connected to the roller shaft, and at the same time, the supporting wheel and the supporting wheel are set. It can be raised and lowered vertically along the guiding device. When pressed, the supporting wheel is driven to rotate by the wheel. After the measurement is completed, the restoring of the supporting wheel is realized by a spring.

Measuring parameters In this measuring device, measuring parameters mainly include four parts: wheel speed v body speed v, braking torque, load W. According to the working principle of ABS, the purpose of ABS is to automatically adjust the braking force of the brake to make the wheel slip rate S It is within the optimal range of 10% to make full use of the peak adhesion coefficient of the road surface and improve the braking effect of the car. Therefore, the wheel slip rate when the car is braking is an indispensable output parameter, but due to the slip rate S It cannot be obtained directly, but can only be obtained by calculating wheel speed and vehicle body speed. In order to obtain the ground braking force and ground adhesion coefficient of the car intuitively, the braking torque of the braking state must be measured; in addition, because the braking force detection technical requirements are based on the percentage of the axle braking force to the axle load, the total mass is different. It is a relatively objective standard for the automobile, therefore, the synchronous measurement of the automobile load is essential.

Adopt the sensor and its arrangement. Although the speed sensor can use a non-contact speed sensor for the body speed, it is costly and technically complicated. In order to reduce the cost of the test bench, the main drum linear speed (motor output speed) is used to approximately replace the body speed within the allowable range of error; The bench only needs to measure the wheel speed. The wheel speed sensor adopts a magnetoelectric sensor. The sensor gear mounted on the wheel shaft rotates with the wheel shaft, and the wheel speed sensor outputs an AC signal. The input amplifier circuit amplifies the AC signal into a rectangle. And send it to the arithmetic circuit after shaping. For 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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