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The principle and process characteristics of NC lathe processing in Dongguan

Source: xuyang Browse:83 The release date:2018.06.28 [ Large medium small ]

The principle and process characteristics of CNC lathe processing in Dongguan

CNC lathe machining center | www.xusunmachinery.com


1. CNC lathe processing tells you that the machine tool body is similar to the traditional machine tool. It consists of spindle drive, feed drive, bed, worktable and auxiliary motion device, hydraulic pneumatic system, lubrication system, cooling device and so on. However, great changes have taken place in the overall layout, the appearance modeling, the transmission system, the structure of the tool system and the operating mechanism. The purpose of this change is to meet the requirements of the CNC machine tools and give full play to the characteristics of the CNC machine tools.


The 2.CNC unit CNC unit is the core of the CNC machine tool, and the CNC unit is composed of three parts: information input, processing and output. The NC lathe processing tells you that CNC unit accepts digital information. After decoding, interpolating and logical processing of the control software and logic circuit of the numerical control device, all kinds of instruction information are output to the servo system, and the servo system drives the execution parts for feed movement.

3. the input / output device input device transfers all kinds of processing information to the external devices of the computer. In the early stage of NC machine tool production, the input device is a perforated paper tape, which has been eliminated, then developed into cassette tape, and then developed into a portable hardware such as keyboard and disk, which greatly facilitates the input of information input, and is now used in the mode of serial communication of DNC network communication. Output index output internal working parameters (including the normal machine tool, the original parameters under ideal working state, fault diagnosis parameters, etc.). Generally, these parameters are needed to be recorded and preserved in the working state of the machine tool. After a period of work, the output and the original data are compared and compared. It can help judge the work of the machine tool. Maintain normal.

4. Dongguan CNC lathe processing tells you that the programmable controller (PC, Programmable Controller) is a universal automatic control device based on the microprocessor, designed for application in the industrial environment. Since the initial development of this device is designed to solve the logic and switch control of the production equipment, it is called PLC (Programmable Logic Controller). When PLC is used to control the sequential action of machine tools, it can also be called PMC (Programmable Machine Controller). PLC has become an indispensable control device for CNC machine tools. CNC and PLC cooperate with each other to complete the control of CNC machine tools.

5. the measuring feedback device is also called feedback element, including grating, rotary encoder, laser rangefinder, magnetic grating and so on. It is usually installed on the worktable or screw of the machine tool. It transforms the actual displacement of the machine tool table into the electrical signal to feed back to the CNC device, and gives the error signal of the CNC device and the instruction value to control the movement of the machine to eliminate the error. 2. When using numerical control machine tools, we should first write the code and format of the geometric information and process information of the machined parts into the processing program. Then, the processing program is input into the numerical control device. According to the requirements of the program, the information processing and distribution of the numerical control system can be made to minimize the coordinates of the coordinates. Displacement is used to realize relative movement between tool and workpiece and finish parts processing.

Process characteristics of NC lathe processing in Dongguan

NC lathe processing is a part of mechanical processing, mainly two kinds of processing forms: one is to fix the lathe tool, to process the unformed workpiece in rotation, the other is to fix the workpiece, to rotate the workpiece through high speed, and to make the horizontal and vertical movement of the tool (tool holder) for precision processing.

1, numerical control lathe processing is easy to ensure the accuracy of the work surface of the workpiece. When machining, the workpiece revolves around a fixed axis, and each surface has the same axis of rotation, so it is easy to ensure the requirements of the coaxiality between the machining surfaces.

2, the cutting process is more stable; in addition to the intermittent surface, the machining process of the lathe is in a continuous way, unlike milling and planing. In the process of a knife, the cutter teeth are cut and cut out many times, and the impact is produced.

3. It is suitable for finishing of non-ferrous metal parts; some non-ferrous metal parts are part of machining by lathe. There are mainly two kinds of machining forms: one is to fix the tool, to process the unformed workpiece in rotation, the other is to fix the workpiece through the high-speed rotation of the workpiece, and the lateral of the tool (tool holder). And the longitudinal moving for precision machining.


CNC lathe machining machinery | www.xusunmachinery.com


1. it is easy to ensure the accuracy of each machining surface of the workpiece. When machining, the workpiece revolves around a fixed axis, and each surface has the same axis of rotation, so it is easy to ensure the requirement of the coaxiality between the machining surfaces.

2. the cutting process is more stable; in addition to the intermittent surface, the machining process of the lathe is carried out in a continuous way, unlike milling and planing. In the process of a knife, the cutter teeth are cut and cut out many times, and the impact is produced.

3. for the finishing of non-ferrous metal parts; some non-ferrous metal parts, because of the hardness of the material itself is low, the plasticity is better, it is very rare to use other processing methods to clean the smooth surface.

4. cutting tool is simple; the tool is the simplest kind of tool, manufacturing, grinding and installation are very convenient. This is easy to select a reasonable angle according to the specific processing requirements. The hardness of the material itself is low, the plasticity is better, and it is very rare to get to the smooth surface with other processing methods.