The maintenance work of the program-controlled surface grinder involves various dangers. The maintenance work must comply with the safety precautions related to the surface grinder. Professional maintenance personnel must perform fault maintenance on the program-controlled surface grinder. When checking the operation of the surface grinder, they should be familiar with the surface grinder manufacturer's specifications and systems. In addition, when diagnosing and repairing the fault of the program-controlled surface grinder, they should avoid the expansion of the fault and ensure that there are no hidden dangers after the repair.

  The following are some issues that should be paid attention to during maintenance.

  (1)Safety precautions during maintenance.

  ①When opening the protective cover to start the surface grinder, clothing may be caught in the spindle or other parts; when checking the operation, stand away from the surface grinder to ensure that the clothing will not be caught in the spindle or other parts. When checking the operation of the surface grinder, it must be The idling operation is performed without mounting the workpiece. If the surface grinder fails, physical processing may cause the workpiece to fall or the blade to break and fly out, and may also cause chips to splash and damage the body. Therefore, it is necessary to stand at a safe seam for inspection.

  ②When opening the electrical cabinet for inspection and maintenance, pay attention to the high-voltage part of the electrical cabinet and do not touch the high-voltage part.

  (3)When machining a workpiece automatically, it is necessary to run in a single block first, reduce the feed rate ratio, or use the lock function of the surface grinder to run the automatic cycle machining program without installing the tool and workpiece to confirm whether the surface grinder is running normally. Otherwise, the abnormal movement of the surface grinder may damage the workpiece and the surface grinder itself, as well as injure the operator.

  ④Before moving the surface grinder, carefully check for input errors. Errors in subprogram data in automatic operation may cause the surface grinder to run out of control and cause an accident.

  ⑤The given feed rate should be suitable for the intended operation. Generally speaking, each surface grinder has a maximum allowable feed rate. The optimal feed rate for different operations is different. The appropriate feed rate should refer to the plane Grinding machine manual to determine, otherwise it will accelerate the wear of the surface grinder, and even cause an accident.

  ⑥When using tool compensation, check the compensation direction and compensation amount. If the input data is incorrect, the surface grinder may operate abnormally, which may cause damage or injury to the workpiece and the surface grinder itself.

  ⑦When replacing control elements or modules, turn off the system power and the surface grinder main power.

  ⑧The servo drive unit can not be replaced until at least 20 minutes after the power is turned off: after the power is turned off, the voltage of the servo drive and the spindle drive will remain for a period of time, because even after the power of the drive module is turned off, there is a danger of electric shock, and the residual voltage will disappear after the power is turned off for at least 20 minutes .