The cause of the busbar processing machine hitting the knife

by:JPSK     2021-06-03
The bus processing machine has high processing precision, good dimensional stability, low labor intensity of workers, and is convenient for modern management. The bus processing machine belongs to the numerical control equipment. In the case of improper operation or programming error, the tool or tool holder will easily hit the workpiece or the bus processing machine. The lighter will damage the tool and the processed parts, and the heavy will damage the components of the bus processing machine. The processing accuracy of the bus bar processing machine is lost. Therefore, it is not allowed for the tool to collide with the bus processing machine or the workpiece during the use of the bus processing machine. The following is a detailed analysis of the causes of knife collision on the bus bar processing machine to prevent micro-faults.  Because the CNC bus processing machine is locked by software, during simulation processing, when the automatic operation button is pressed, it is not intuitive to see whether the bus processing machine is locked or not in the simulation interface. There is often no tool setting during simulation. If the bus bar processing machine is not locked, it is very easy to hit the tool. So before simulating processing, you should go to the running interface to confirm whether the bus processing machine is locked. Forgetting to turn off the dry run switch during processing. In order to save time during program simulation, the dry run switch is often turned on. Dry run means that all motion axes of the bus bar processing machine run at the speed of G00. If the dry run switch is not turned off during processing, the bus processing machine ignores the given feed rate and runs at the speed of G00, causing an accident of hitting a knife or hitting the bus processing machine. There is no reference point return after the dry run simulation. When verifying the program, the bus processing machine is locked and the tool is in the simulation operation relative to the workpiece processing (absolute coordinates and relative coordinates are changing). At this time, the coordinates do not match the actual position, and the method of returning to the reference point must be used. Ensure that the machine zero coordinate is consistent with the absolute and relative coordinates. If no problems are found after the program is checked, the machining operation will be carried out, which will cause tool collisions. The direction of overtravel release is wrong.   When the bus processing machine is overtravel, you should press the overtravel release button and move it in the opposite direction manually or manually to eliminate it. However, if the direction of release is reversed, it will cause damage to the bus processing machine. Because when the overtravel release is pressed, the overtravel protection of the bus processing machine 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 workbench to continue to move in the overtravel direction, pull the lead screw, and cause damage to the bus processing machine. The cursor position is incorrect when the specified line is running. When a specified line is run, it is usually executed downward from the cursor position. For the lathe, it is necessary to call the tool offset value of the used tool. If the tool is not called, the tool of the running program segment may not be the desired tool, and it is very likely that the tool collision accident may occur due to different tools. Of course, the coordinate system such as G54 and the length compensation value of the tool must be called first on the machining center and CNC milling machine. Because the length compensation value of each tool is different, it may cause tool collision if it is not called.   It is hoped that the operator of the bus processing machine can operate in accordance with the operating regulations and use the bus processing machine correctly.
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