Doosan CNC vertical latheAs a high-precision machine tool, anti-collision is very necessary, requiring the operator to develop the habit of careful and careful, according to the correct method of operation of the machine tool, reduce the occurrence of machine tool collision phenomenon. So what are the reasons for the occurrence of knife collision in CNC vertical lathe?
1. Forgot to turn off the dry running switch during processing.
DueDoosan CNC vertical latheLathe composite machine tool in the program simulation, in order to save time often open the empty run switch. The dry run means that all axes of motion of the machine are running at a speed of G00. If the operation switch is not turned off during processing, the machine tool ignores the given feed speed and runs at G00 speed, causing accidents of cutting and collision.
2. The direction of over-travel lifting is wrong.
WhenDoosan CNC vertical latheWhen the lathe compound machine tool is over-travel, the over-travel release button should be pressed and moved in the opposite direction manually or by hand, which can be eliminated. However, if the direction of the lifting is reversed, it will cause damage to the machine tool. Because when the overtravel release is pressed, the overtravel protection of the machine tool will not work, and the travel switch of the overtravel protection is already at the end of the travel. At this time, it may cause the worktable to continue to move in the direction of overtravel, and finally pull the lead screw, causing damage to the machine tool.
3. Improper position of the cursor during the operation of the specified line.
When the specified line is run, it is often executed downward from the cursor position. Right.Doosan CNC vertical latheAs far as the tool is concerned, it is necessary to call the tool offset value of the tool used. If the tool is not called, the tool running the program segment may not be the desired tool, which is very likely to cause a knife collision accident due to different tools. Of course, in the machining center, CNC milling machine must first call the coordinate system such as G54 and the length of the tool compensation value. Because the length compensation value of each knife is different, if it is not called, it may cause knife collision.
4. The reference point was not returned after the empty run simulation.
During the calibration procedure, the machine tool is locked, while the tool is in simulated operation relative to the workpiece (the coordinates and relative coordinates are changing). At this time, the coordinates are inconsistent with the actual position. The method of returning to the reference point must be used to ensure that the zero point coordinates of the machine are consistent with the relative coordinates. If the machining operation is carried out after the calibration procedure without finding the problem, it will cause the collision of the tool.