1) four safety devices.

Four emergency stop buttons and four safety devices are the main components of the roll grinder. For the four safety devices, it is mainly the yellow safety gate, the middle measuring ruler, two sensors and the anti-collision rubber strip. These four safety devices are sensitive parts and are safety devices. If you touch one of these devices during use, it will cause the program to stop immediately.

First, when the roll is hoisted, the yellow safety door must be opened, and only when the program is running can it be closed. Second, the two sensors are fixed to the back of the headstock, preventing the rollers from colliding with the grinding wheel. In the actual grinding, the roll has not reached the standard grinding, the machine tool begins to alarm, the safety device will be touched, such grinding will automatically terminate. Although the reset is done, the alarm cannot be eliminated. After constant scrutiny and analysis, found that the sensor is stained with besmirch, leading to the light signal can't normal, normal receiving signals cannot be receiver, a CNC miscalculation, of alarm. In this case, a regular cleaning of the two sensors is required. In the principle of work, the sensor is used to judge the distance of the roll and the head frame by the intensity of the light. So clarity is critical. At the same time, the sensor can not collide with the installation, which can easily lead to deformation of the bracket. Third, the measuring ruler is mainly used on the grinding wheel rack, which is mainly to the middle roll, and the coarse adjustment of tova. Measuring scale down, located in the rotation axis, just for tile, after rough adjustment to fixed measuring scale, and must be the screw in position, and position sensor, so that the CNC better able to receive the signal.

2) soft landing.

If a soft landing is completely dropped, on the console, two green lights should be on. However, in actual operation, even a soft landing will occur with a light signal, resulting in the failure of the normal rotating roll to run the program. Such information will appear on the alarm, which will require a soft landing and roll rotation. Reasons for this phenomenon is mainly due to the vibration, the sensor can't very well at the bottom of the induction soft landing position sensor, or at the time of signal transmission, socket is loose, resulting in not outgoing signal. In this case, a small wooden hammer is used to suspend the thin wire rope of the induction hammer so that the soft landing signal is normal. Test on both sides until normal. The hole can be drilled directly under the soft landing cover, and the string is inducted in the hole. If the signal doesn't light up properly, you will need to pull it continuously until the signal lights up properly. If it is said that the socket is loose, then the socket should be packed.

3) failure before grinding.

In the process of grinding, need to perform testing procedures when measuring system action to roll tailstock side position, detection device approach roll, but V shaft fixed, work station computer appear "check INSPECTER communication" fault alarm, then the inspection program is not implemented. Without manual intervention, after the computer performs the grinding procedure, the alarm will appear "waiting for detection result", and the detection of roll roundness will not be carried out. Reason: due to the transmission reason, the eddy current on the surface of the roller is not returned, and the waiting time is too long and the alarm appears. Solution: you can close the INSPECTER software and restart it. Or interrupt the running program and start over.

4) the manual Z axis cannot be rotated.

The manual Z axis appears the phenomenon of non-rotation, which is mostly due to the failure of the linkage between the Z axis and the tumbling device.

5) the z-axis filter is blocked.

The roll grinder has defects in the seal, so it is easy to emulsify the z-axis lubricating oil, which leads to the blockage of the z-axis filter or the increase of pressure. This failure can be solved by replacing the z-axis filter and replacing the z-axis guide at the appropriate time. Because of the long - term movement, the pulley on the roll is grooved in the guide rail, which has a great influence on the grinding precision. This situation can be solved by pasting stainless steel, and modify the pulley model to adjust the operation height so that it stays at the same height as before, and the operation precision will not be affected by the corresponding effect.