Nowadays, CNC lathe processing products have been applied to many industries. As long as it is a machine, the failure is inevitable. The following editors will take you to understand the common 9 faults and solutions for CNC lathes processing:
The size of the workpiece is accurate, and the surface is poorly smooth
Causes of faults: The knife and knife tip are damaged and not sharp; the machine tool produces resonance and is unable to place it; the machine tool has crawling; the processing process is not good.
Solution: When the tool is worn or damaged, it is not sharp after the knife is worn, then then grind the knife or choose a better knife to re -knife; the machine tool generates resonance or unstable placement, adjust the level, lay the foundation, and fix it; The board -conducting rail is worn well, the screw roller is worn or loosened, the machine tool should be maintained, and the iron wire should be cleaned after getting work, and lubricating oil should be added in time to reduce friction. In the case, try to choose a higher spindle speed.
Workpiece generates taper size head phenomenon
Cause of faults: The level of the machine tool is not adjusted, one high and one low, and the placement is unstable; when the long shaft is cut, the contribution material is relatively hard, and the knife eats the knife deeper, causing the knife phenomenon;
Solution: Use the horizontal instrument to adjust the horizontal degree of the machine, lay a solid foundation, and fix the machine tool to improve its toughness; choose a reasonable process and proper cutting into the amount of the sword to avoid the knife; adjust the tail seat.
The phase lamp of the driver is normal, and the processed work
Causes of faults: The long -term high -speed operation of the machine latter trailer causes the screw and bearings to wear; the repeated positioning accuracy of the blade frame has a deviation in long -term use; the trailer can accurately return to the starting point of the processing, but the size of the processing workpiece still changes. This phenomenon is generally caused by the spindle. The high -speed rotation of the main axis causes severe wear of the bearings and causes the processing size. Thank you for your attention to CNC automation WeChat: CNCAUT.
Solution: Use the percentage table to lean at the bottom of the blade frame, and edit a fixed cycle program through the system editing to check the duplicate positioning accuracy of the trailer, adjust the screw gap, and replace the bearings; check the repetitive positioning accuracy of the blade with a percentage table, Adjust the mechanical or replace the blade frame; check whether the processing workpiece is accurately returned to the starting point of the program after using the percentage table.
The size of the workpiece is several millimeters from the actual size, or a certain axial direction has changed a lot
Cause of failure: The speed of fast positioning is too fast to drive and the motor cannot react; the screw and bearings of the mechanical trailer and bearings are too tight to death after long -term friction loss; Error, the head and tail are not echoed or the knife is not canceled;
Solution: The fast positioning speed is too fast, then appropriately adjust the speed of GO, cutting and subtraction and time to make the driver and motor work normally at the rated frequency; If you die, you must re -adjust and repair; after the knife rack is changed, it is too loose to check whether the reversal time of the knife holder is satisfied. For the cause, the program must be modified, and the improvement process is improved according to the requirements of the workpiece drawings. The reasonable processing process is selected. Whether the parameters such as step distance angle are destroyed, this phenomenon can be measured by a percentage table.
