1. Use a computer simulation simulation system
With the development of computer technology and the continuous expansion of CNC processing teaching, more and more NC processing simulation systems are increasing, and its functions are becoming more and more complete. Therefore, it can be used for preliminary inspection procedures to observe the movement of the tool to determine whether there is a collision.
2. Use the simulation display function of the CNC processing center
Generally speaking, a more advanced CNC machining center has graphics display functions. After entering the program, you can call the graphics simulation display function to observe the motion trajectory of the tool in detail to check whether the tool has collided with the workpiece or fixture.
3. Use the empty operation function of the CNC processing center
Using the air running function of the CNC processing center, you can check the correctness of the knife rail. When the program inputs the CNC machining center, you can install a tool or workpiece, and then press the air running button. At this time, the main axis does not rotate, and the workbench runs automatically according to the procedure trajectory. At this time, you can find whether the tool may collide with the workpiece or fixture. However, in this case, we must ensure that the tools cannot be installed when installing the workpiece; when the tools are installed, the workpiece cannot be installed, otherwise a collision will occur.
4. Use the lock function of the CNC processing center
The general number control processing center has a lock function (full lock or single -axis lock). When the input program is input, the Z axis locks the Z axis to determine whether a collision will occur through the coordinate value of the Z axis. The application of this function should avoid replacing the knife, otherwise the program cannot pass.
5. Coordinate system. The knife supplement settings must be correct
When starting the CNC processing center, the reference point of the CNC processing center must be set. The working coordinate system of the CNC processing center should be consistent with programming, especially the direction of the Z axis. If there is an error, the milling cutter is likely to collide with the workpiece. In addition, the setting of tool length compensation must be correct, otherwise it is either air processing or collision.
