What are the tips for avoiding knife collision in CNC machining center? With the development of computer technology and the continuous expansion of CNC machining teaching, there are more and more NC machining simulation systems, and their functions are becoming more and more perfect. Therefore, it can be used in the preliminary inspection program to observe the movement of the tool to determine whether a collision may occur.
1、 Using the simulation display function of CNC machining center
Generally, advanced CNC machining centers have graphic display function. When inputting the program, you can call the graphic simulation display function to observe the tool path in detail, so as to check whether there is possible collision between the tool and the workpiece or fixture.
2、 Using the empty running function of CNC machining center
The idling function of CNC machining center can be used to check the correctness of tool path. When the program is in the NC machining center, you can install it on the tool or workpiece, and then press the empty operation button. At this time, the axis does not rotate, and the automatic operation is tracked according to the planned worksheet. At this time, you can find out whether the tool may contact the workpiece or fixture. However, in this case, it must be ensured that the tool cannot be installed when the workpiece is installed; When the tool is installed, the workpiece cannot be installed, otherwise collision will occur.
3、 Using the locking function of CNC machining center
General CNC machining center has locking function (full lock or single shaft lock). After entering the program, lock the z-axis, and you can use the coordinate value of the z-axis to judge whether there will be a collision. When applying this function, avoid tool change and other operations, otherwise the program cannot pass.
4、 Improve programming skills
Programming is the most important part of large CNC machining center. Improving programming skills can avoid some unnecessary collisions to a great extent.
ken. tang@chengcg.com
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