The original compressed air in the grating is to improve its protection level, but now it becomes a source of pollution. After using the filter device, it has not occurred in more than a year. CNC machine shaving machine y axis can not find the zero return point We first look at the normal zero return action: (l) first fast return to zero, (2) after pressing the zero return switch, then slow down the reverse movement, (3) when loosening After switching for a distance, look for the zero signal on the grating, stop, and return to zero. Careful observation of its movement, (l), (2) are normal, but in the third (3) action execution, can not always stop, the reason is: 1 zero return switch is loose, but in fact the contact is not really broken open. The oY axis servo drift parameter is abnormal. ? Failed to find the zero signal on the raster. Check the first two, both are normal. So we replaced the grating and it was normal after replacement. The DYNA650 machining center of Hongqing Machine Tool Co., Ltd. has an unstable z-axis machining size, which causes it to be treated as a mechanical fault when the parts are scrapped. However, after checking the repeated positioning accuracy of the exchange table, the fixture of the workpiece, etc., it may be considered Z. There is a problem with the axis grating. The Z-axis grating was removed, and the scanning head and the rubber strip were carefully taken out, and it was found that the grating scanning head and the aluminum shell were rubbed together, and a large amount of aluminum chips were inside, but fortunately, the scanning head and the glass piece were not damaged. We analyzed that the machine tool had been dismantled and repaired the spindle bearing two days ago. At that time, the grating was removed due to the influence of the mounting position of the grating. When it was installed again, the parallelism of the grating and the Z-axis guide was not adjusted, so that the spindle was in Z. When the direction is moved, the moving diaphragm probe and the fixed light cabinet aluminum shell are smashed to make the size unstable and damage the grating. After cleaning the diaphragm and reinstalling it, it is working properly after strictly adjusting its parallelism with the Z-axis guide. Germany H011 Wang R B-printing gear side plate Z-axis pressure dead limit and stop. When this fault occurs, we think it is an accidental failure, which may be caused by operation error, replacement probe position is too low, etc. Just use the wrench to pull the Z-axis screw in the opposite direction, so that it will be retracted and the limit will be released, and it will work again. However, after many occurrences, we have paid attention to it. We noticed that the z-axis diaphragm is an open type grating of HEIDEN-HAIN. The upper and lower ends of the grating glass piece do not seem to be clean, and when the Z axis moves to this position, it is just close to the lower limit switch. . Then manually move the Z axis down to this position, repeating multiple times, and sometimes the Z-axis next rush occurs suddenly, and the limit is pressed. After the grating is cleaned, this action is repeated, and no similar failure occurs. It has been running normally for more than two years. We analyzed that when the Z axis moved to this position, the grating failed to be detected, and the correct position could not be detected and suddenly rushed, thereby crushing the limit sender failure. The spindle motor is a DC motor. One end of the spindle drives the spindle to rotate, and also drives a rotary encoder. However, it does not provide the speed feedback, but only provides the actual speed data to the screen. The other end is coaxially mounted with a DC permanent magnet speed generator, which is a true speed anti-debt unit. We checked that the speed control system, DC motor and side speed generator were all normal, but the speed was still unstable. (Finish) High-torque Twin-screw Extruders Plastic Machine,Pipe Extrusion Line,Plastic Machinery QINGDAO SHUNDE PLASTIC MACHINE CO.,LTD , http://www.shunde-china.com
The failure of the numerical control equipment is extremely important in the component