CNC machining, also known as CNC machining, refers to processing with CNC processing tools. Because CNC machining is computer-controlled processing after programming, CNC machining has the advantages of stable processing quality, high machining accuracy, high repetition accuracy, complex machining surfaces, and high processing efficiency. In the process of actual processing, human factors and operational experience will greatly affect the final processing quality. Here, let's take a look at the 12 valuable experiences of an old driver with 10 years of CNC processing experience. .. .. ..

First, how to the CnC processing process division?

The division of NC CNC processing processes can generally be carried out according to the following methods:

1, the tool centralized sorting method is to divide the process according to the tool used, with the same tool CNC processing all the parts can be completed. With the second knife, the third one completes other parts that they can complete. This can reduce the number of knife changes, compression of the empty time, and reduce unnecessary positioning errors.

2, with the processing part sorting method for CNC processing content of many parts, according to its structural characteristics, the processing part can be divided into several parts, such as the inner shape, shape, surface or plane. Generally, the plane, positioning surface, and post-processing holes are first processed; Processing simple geometry first, then processing complex geometry; The parts with lower machining precision first and the parts with higher machining precision requirements.

3, with rough, refined CNC processing sorting method for CNC processing deformation parts, due to rough processing may occur after the deformation and need to be corrected, so in general, all to perform rough, refined processing procedures are to be separated. To sum up, when dividing the process, it must be determined by the structure and process of the parts, the function of the machine tools, the number of parts of CNC CNC processing content, the number of installation and the production organization of the unit are flexibly mastered. It is also recommended to adopt the principle of process concentration or the principle of process dispersion, according to the actual situation to determine, but must strive to be reasonable.

Second, what principle should the arrangement of the processing order of CnC follow?

The arrangement of the machining sequence should be considered according to the structure and condition of the parts, as well as the need for positioning clamping. The emphasis is on the rigidity of the workpiece not to be destroyed. The order should generally be based on the following principles:

1, the CnC processing process on the upper road can not affect the positioning and clamping of the next road process, and the middle interspersed with the general machine tool processing process should also be considered comprehensively.

2, first the inner cavity processing sequence, and then the shape processing process.

3, the same positioning, clamping or the same knife CNC processing process is best connected to reduce the number of repeated positioning, the number of knife changes and the number of moving plate.

In the same installation of multiple processes, should be arranged for the workpiece rigid damage small process.

Third, the determination of the workpiece clamp should pay attention to those aspects?

The following three points should be noted in determining positioning benchmarks and clamping options:

1, strive to design, process, and programming calculations of the same Benchmark.

2, minimize the number of clips, as far as possible after the positioning can be CNC processing all the surface to be processed.

3, avoid the use of manual adjustment plans.

4, jig to open, its positioning, clamping mechanism can not affect CNC processing knife, encounter such a situation, can use vise or added bottom screw way to clamp.