Safety precautions for CNC machining
- Coordinate system and tool compensation settings must be correct
When starting CNC machining, it is important to set the machine reference point. The CNC CNC machining operation coordinate system should be consistent with the programming R, especially in the 7-axis direction. If there is an error, the collision between the milling cutter and the workpiece may be significant. In addition, J tool length compensation is necessary for setting the correct J, otherwise, either empty machining or collision will occur.
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- Using a computer simulation system
Nowadays, with the development of computer technology and the continuous expansion of CNC machining education, there are more and more CNC machining simulation systems, and their functions are also becoming more and more complete. Therefore, it can be used to start checking the program: investigating the movement of the tool to confirm if there may be a collision. Use the built-in simulation display function of the machine tool. Generally, advanced CNC machine tools have graphic display functions. When inputting a program, the graphic simulation display function can be called to specifically examine the motion trajectory of the tool to see if there is any collision between the tool and the workpiece or fixture.
- Using CNC machining to determine functions
Generally, CNC machine tools have a certain function (full lock or single axis lock). When the input program determines two axes, the coordinate values of the two axes are used to determine whether a collision will occur. When using this function, operations such as changing tools should be avoided, otherwise the program cannot pass.
- Using CNC to process air freight function
The CNC CNC machining lift function can be used to check the correctness of the tool path. After the program enters the machine tool, the tool or workpiece can be installed, and then the air button can be pressed. At this time, the spindle does not rotate, and the workbench actively runs according to the program trajectory. At this time, it can be checked whether the tool may come into contact with the workpiece or fixture. However, in this case, it is necessary to ensure that the tool cannot be installed when installing the workpiece; When installing the cutting tool, do not install the workpiece, otherwise it may collide.
