How to improve the programming technology of CNC machining

Programming is an essential step in the CNC machining process, but many beginners know very little about CNC machining programs. For CNC machining centers, we must avoid collisions during programming and machining. Because the CNC machining center is very expensive, ranging from hundreds of thousands of yuan to millions, the maintenance cost is quite expensive. The following will share with you some programming skills on how to improve CNC machining.

Technology 1: Using the CNC machining center's built-in analog display function

Usually the more advanced CNC machining centers have the graphics display function. After the program is input, the graphic simulation display function can be called to observe the movement path of the tool in detail to check whether the tool may collide with the workpiece or fixture.

Technology II: Application of Computer Simulation System

With the development of computer technology and the expansion of CNC machining teaching scale, more and more The more CNC machining simulation systems, the more perfect their functions are. In this way, it can be used to initially check the program and observe the movement of the tool to determine whether there is a collision.

Technology 3: Utilize the locking function of CNC machining centers

Ordinary CNC machining centers have locking functions (full lock or single axis lock) ). After inputting the program, lock the Z axis, and judge whether there will be a collision based on the coordinate value of the Z axis. When using this function, operations such as tool change can be avoided, otherwise the program cannot be passed.

Technology 4: Coordinate system, tool compensation setting should be correct

When starting the CNC machining center, be sure to set the CNC machining center reference point. The working coordinate system of the CNC machining center should be consistent with the programming, especially the Z-axis direction. If there is an error, there is a high possibility that the milling cutter will contact the workpiece. In addition, the setting of tool length compensation must be correct, otherwise empty machining or collision cannot be used.

Technology 5: Using the idling function of the CNC machining center

Through the idling function of the CNC machining center, the correctness of the tool path can be checked test. After entering the program in the CNC machining center, you can load the tool or workpiece, press the empty key, the spindle does not rotate at this time, and the worktable runs automatically according to the program trajectory, and the machine tool can find out whether the tool or workpiece collides with each other. However, in such a 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 a collision will occur.

Technology 6: Improve programming skills

Programming is a key part of CNC machining, and improving programming skills can largely avoid some unnecessary conflict.

All in all, mastering the programming skills of CNC machining center can better improve the machining efficiency, machining quality, and avoid unnecessary errors in machining. It requires the novice of CNC machining center to continuously summarize experience and improve in practice, so as to further enhance the programming and processing capabilities. If beginners do not know much about these aspects, they should learn more and consult experienced technicians.