博文

目前显示的是 十一月, 2021的博文

Composition of main motion system of CNC machine tool

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  Composition of main motion system of CNC machine tool The spindle drive system of a  CNC machine tool  includes a spindle drive amplifier, a spindle motor, a transmission mechanism, a spindle assembly, a spindle signal detection device and a spindle auxiliary device. Amplifier: The spindle amplifier is used to receive the spindle speed and function control signals sent by the system to implement spindle motor control. It can be a frequency converter or a special spindle amplifier for the system. Spindle motor: The spindle motor is the power source of the spindle drive. It can be an ordinary motor, a frequency conversion special electric and a system special spindle motor. Transmission mechanism: There are three main configuration modes for spindle transmission of CNC machine tools, namely the main movement mode with variable speed gears, the main movement mode through belt transmission and the main movement mode directly driven by variable speed motors. Spindle assembly...

Requirements for operators of CNC lathes

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  Requirements for operators of CNC lathes It is the operator who has the most contact with the compound  CNC lathe  and can grasp the “pulse” of the machine’s operation. They operate the machine tool all day long, accumulate a wealth of practical experience, and know the state of the machine parts well. Their correct use and maintenance often have an important impact on the state of CNC machine tools. Therefore, a qualified CNC machine tool operator should have the following basic conditions: (1) Have a high ideological quality. Hardworking, with good professional ethics, able to study technology assiduously, technical secondary school or above, and rich practical experience. (2) Proficient in various operations and programming. Be able to correctly and skillfully perform various operations for the CNC machine tools for which you are responsible, and master the programming methods, and be able to compile correctly and optimized processing procedures to avoid operation er...

CNC lathe clearance causes

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  CNC lathe clearance causes The movement of the machine tool will produce a gap, including the guide rod pushing the tool holder to move. Over time, it will wear out and the gap will be too large, which will affect the processing effect. Let’s talk about the causes and effects of the gap of  CNC lathes . Reasons for CNC lathe clearance: 1. There is a gap between the ball screw and the nut pair of the machine tool, which cannot be in close contact to produce axis movement. 2. With the use of machine tools, wear gradually intensifies, resulting in gaps. The influence of CNC lathe clearance: 1. When the workbench is moving backward, the motor runs idly and the workbench does not move, causing a positioning error of ±D/2, which affects the accuracy of the machine tool. 2. When the clearance is too large, the dynamic response characteristics will deteriorate and oscillation will occur. Guangdong CNC Lathe The solution to the excessive clearance of CNC lathe: 1. Using high-precisio...