Turning the zero back on is the operation that our machining personnel often use. However, some people may not know what is the Boot back to zero. In the popular way, the coordinates of the machine tool are returned to the initial position, and then the coordinate point is passed. As a reference point to achieve subsequent processing operations and task control.
Method 1 CNC machining center boot back to zero：
As the two main methods of zero return on the machining center, their effects and execution methods are completely different. Among them, in the case of magnetic switch returning to zero, this method has its zero return accuracy and effect due to the defect of its own positioning drift phenomenon, so this method is only applied in the early processing center, now The high-precision machining center is basically extinct.
Method 2 CNC machining center boot back to zero：
The principle of grid method zero return is to realize the effective zero return of the machine tool through two parts of the grating ruler and the pulse encoder. This zero return method has high precision and good flexibility, and is the mainstream zero return mode of the current CNC machine tool; This method is divided into two parts: absolute grid method and incremental grid method. Absolute grid method means that the machine can permanently hold the zero position after completing the zero return operation in the first debugging process, and then it is not necessary to perform this step.
The incremental grid method needs to be manually completed for the coordinate axis setting. In addition, the machine control device is signal controlled by the pulse, so that the zero switch position is inquired to complete the zero return process.
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