In the processing process of the CNC processing center, it is crucial that when programming and operating processing, it is necessary to avoid the impact of the CNC processing center. Because the CNC processing center is very expensive, ranging from a few hundred thousand yuan to a few million yuan, it is difficult and expensive to repair. However, the occurrence of kowtow is certain to follow the rules and can be avoided, mainly the following points.

1, use computer simulation simulation system

With the development of computer technology, the continuous expansion of NC machining education, more and more NC machining simulation simulation system, its functions are increasingly perfect. Therefore, it can be used to start viewing the program and observe the movement of the tool to determine whether it is possible to bump.

2, using CNC processing center's own imitation display function

Generally more advanced CNC processing centers have graphics display functions. When you enter the program, you can call the graphics to imitate the display function and specifically observe the motion orbit of the tool to see if the tool is likely to collide with the workpiece or fixture.

3, using the CNC processing center's air operation function

Using the empty operation function of the CNC processing center, we can check whether the track of the knife is correct. When the program enters the CNC processing center, the tool or workpiece can be installed, and then the empty operation button can be pressed. At this moment, the spindle does not turn, and the worktable actively runs according to the program track. At this moment, it can be discovered whether the tool may collide with the workpiece or fixture. However, in this case, it must be necessary to ensure that when the workpiece is installed, the tool can not be installed; When the tool is installed, the workpiece can not be loaded, otherwise it will break and bump.

4, using CNC processing center locking function

The general CNC processing center has a locking function. When the program is entered, the Z axis can be locked, and the coordinate value of the Z axis can be used to determine whether there will be an attack. The use of this function should avoid the operation of changing knives, etc., otherwise the program can not pass.

5, coordinate system, knife repair settings must be correct

When starting the CNC processing center, the CNC processing center reference point must be set up. The CNC processing center's working coordinate system should be consistent with programming, especially the Z axis direction. If mistakes are made, the milling cutter and the workpiece are very likely to collide. In addition, it is necessary to set the tool length compensation correctly, otherwise it is either an empty processing or an attack.

6, improve programming skills

Programming is an important part of NC machining. Improving programming skills can largely avoid unnecessary collisions.

For example, milling uses a milling machine for metal cutting] The inner cavity of the workpiece, when the milling is completed, the required milling cutter quickly returns to 100mm above the workpiece. If the N50G00 X 0Y0Z100 is programmed, the CNC processing center will connect the three axes, and the milling cutter may collide with the workpiece., Causing tool and workpiece damage, seriously affecting the accuracy of CNC processing center, the following procedures can be used at this time N40G00Z100; N50 X0 Y0; That is, the tool first retreated to 100 mm above the workpiece, and then came back to programming zero, so that it would not touch.

In short, master the programming skills of the processing center can better improve the processing efficiency, processing quality, and avoid unnecessary mistakes in the processing. This requires us to keep summing up experience in practice and continuously improve, so that the programming and processing capabilities are further strengthened and improved.