CNC CNC treatment process
Planning the processing process refers to the entire process and cannot be judged by the nature of a certain process and the processing of a certain surface. For example, certain positioning benchmark plans must be treated with precision during the semi-evidence treatment phase or even during the approximate treatment stage. Sometimes, in order to avoid the calculation of the size chain, in the stages of precision, a semi-precision treatment on the surface can also be organized.
After determining the treatment method and the surface treatment step, the treatment of each surface in the same treatment step can be combined in several stages.
1 and 1 The method of division of the process of treatment on CNC machine tools is generally divided into the process according to the principle of concentration of the process.
1) The tool for division of the tools used by the use of the tool is completed as a process. The treatment center often uses this method to finish.
2) Divide according to the number of parts installations
The process that can be completed with part of the part is used as a process. This method is suitable for parts with little treatment content.
3) According to approximate processing, the process process completed in approximate processing is used as a process, and part of the process of processes ended in the fine process like any other process. This division method is suitable for parts with intensity and hardness requirements.
4) The process process that completes the same type of surface depending on the processing site is divided into a process.
For parts with numerous treatment surfaces of many and more complicated, the order of CNC treatment, heat treatment and auxiliary processes must be reasonably organized and the problems of connection between the process must be resolved.
2 The principle of division of the processing process is made up of several surfaces. In order to meet the precision requirements for parts design, the provision of processing orders must follow certain principles.
1) The principle of rough and finesse first
The treatment sequence of each surface is carried out in the order of rough treatment, the treatment of semi-precision, precision treatment and the treatment of light. If the entire surface of the parts is processed by CNC machine tools, the provision of processes is generally carried out of the order of rough treatment, semi-procion treatment and fine treatment, that is to say once the Skid treatment completed, semi-prevision treatment and precision treatment.
Most treatment waste can be eliminated during rough treatment, and the surface of each surface is treated in turn, which can improve the efficiency of production and ensure the processing of processing and rumority of the parts. This method is suitable for the treatment of surfaces with higher location precision requirements.
It is not absolute. Treatment and fine treatment. For the treatment surface with high precision requirements, between the thick and precision processing process, the parts must be put on hold for a period of time to completely free up the surface stress of the coarse treatment and reduce the degree of deformation constraint to the surface of the surface of the surface of the room.
2) At the beginning of the principle of treatment of the reference surface, it is always treated by the surface used as a precise treatment reference. First offered the treatment of positioning benchmark and the treatment of semi-precision are carried out. treatment. For example, the parts of the axis always treat the central hole, then use the central noodles and the positioning holes as a finished end treatment and other surfaces. If there is more than one fine surface, you should organize the surface treatment treated according to the order of reference conversion and the principle of progressive improvement in the treatment of treatment.
3) Priority after the hole
For the boxes, the supports, the body and the other parts, the size of the outline of the plane is large and the positioning of the plane is relatively stable and reliable. In this way, not only subsequent treatment has a stable and reliable plane such as positioning of positioning, but also the treatment holes on the flat surface, the treatment becomes easier, but also helps to improve the accuracy of the treatment of the hole. Generally, the process can be divided according to the parts processing site.
4) Internal and external principles
For the precision sleeve, the same requirements of the axis of the outer circle and the holes are high. High precision is used as a positioning benchmark treatment.
5) Reduce the principle of the number of knives
In CNC treatment, the processing order should be organized in the order of the treatment location as much as possible.
Daguang focuses on providing solutions such as precision CNC machining services (3-axis, 4-axis, 5-axis machining), CNC milling, 3D printing and rapid prototyping services.
