The reason why the bus processing machine has a knife

The busbar processing machine has high processing precision, good dimensional stability, low labor intensity and convenient modern management. The busbar processing machine belongs to the numerical control equipment. When the operation is improper or the programming is wrong, it is easy for the tool or the tool holder to hit the workpiece or the bus processing machine. The lighter will damage the tool and the processed parts, and the heavy one will damage the bus processing machine parts. The machining accuracy of the bus processing machine is lost. Therefore, the busbar processing machine does not allow the tool to collide with the busbar processing machine or the workpiece during use. The following is a detailed analysis of the reasons for the collision of the busbar processing machine.

    Since the CNC bus processing machine is locked by software, in the simulation processing, when the automatic operation button is pressed, the analog processing interface cannot visually see whether the bus processing machine is locked. There is often no tool setting during the simulation. If the bus processing machine is not locked, it is easy to hit the knife. Therefore, before the simulation processing, you should check the operation interface to see if the bus processing machine is locked. Forgot to turn off the dry run switch during machining. Since the program is simulated, the idle run switch is often turned on to save time. Dry running means that all motion axes of the bus processing machine run at G00. If the running time switch is not closed during processing, the bus processing machine ignores the given feed speed and runs at G00 speed, causing a knife or busbar machine accident. There is no reference point after the dry run simulation. When the calibration procedure is performed, the busbar processing machine is locked, and the tool is machined in the simulation operation (absolute coordinates and relative coordinates are changing). At this time, the coordinates do not match the actual position, and the reference point return method must be used. Ensure that the mechanical zero coordinates are consistent with absolute and relative coordinates. If the machining operation is performed without finding a problem after the calibration procedure, the tool will collide. The direction of the overtravel is not correct.

    When the bus processing machine overtravels, you should press and hold the overtravel release button and move it in the opposite direction by hand or by hand, which can be eliminated. However, if the direction of the release is reversed, it will cause damage to the bus processing machine. Because the overtravel protection of the bus processing machine will not work when the overtravel is released, the overtravel protection travel switch is already at the end of the stroke. At this time, the worktable may continue to move in the direction of the overtravel, and then the lead screw may be pulled, causing damage to the bus processing machine. The cursor position is incorrect when the specified line is running. When the specified line is run, it is often executed downward from the cursor position. For the lathe, the tool offset value of the tool to be used needs to be called. If the tool is not called, the tool that runs the block may not be the desired tool, and it is very likely that the tool may be caused by a different tool. Of course, in the machining center and CNC milling machine, the coordinate system such as G54 and the length compensation value of the knife must be called first. Because the length compensation value of each knife is not the same, it may cause a collision if it is not called.