There are two lights on the power supply of CNC machining center unit, one is the power indicator, which is green; the other is the power alarm light, which is red. The power supply unit here includes the power input unit and the power control part.
First of all, we should know that when the CNC computer gong machining center power can not be connected, if the power indicator (green) is not on. The fuses F1 and F2 of the power supply unit have been blown. This is due to high input voltage, or the components of the power supply unit itself have been damaged.
The input voltage of CNC computer gong machining center is low. Please check the voltage entering the power supply unit. The allowable voltage value is AC 200V + 10%, 50 Hz ± 1Hz. The power supply unit is not good, there is element damage in it. The power indicator light is on, and the alarm light is also gone, but the power supply cannot be connected. This is because the power on condition is not satisfied. By the following switching circuit, the power supply conditions are as follows:
CNC machining center power supply has three conditions: the first point, the source on button closed. Second, the power off button is closed. Third, the external alarm contact is opened.
The alarm light of power supply unit of CNC machining center is on: the fuse of 24 V output voltage is fused, and + 24 V voltage is used on 1.9 “display screen, as shown in the figure below. Check whether + 24 V is short circuited to the ground. 2. The display / manual data input board is poor. During the use of the center, the tool imbalance may occur. If not adjusted in time, it will affect the processing effect. Therefore, we should always pay attention to the tool balance of CNC machining center. What are the main reasons for the imbalance of the handle?
The main reason for CNC machining is that the tool design is asymmetric, there are defects in the tool body, and all the adjustment of the tool. The correct balance of the tool can significantly reduce noise and vibration, which increases the tool life and improves the accuracy consistency of parts.
The centrifugal force of CNC machining center is proportional to the square of velocity to amplify the vibration caused by unbalance. As a result, the vibration of CNC machining center increases, which minimizes the service life of bearing bush, bearing, shaft, spindle and gear.
Before balancing the tool in CNC machining center, it is necessary to measure the unbalance and the angle position of each selected correction plane. These variables are measured on two general types of balancing machines: non rotating or gravity machines are used to measure single plane unbalance, while rotary or centrifuge is used to measure single plane or two plane unbalance.
After measuring the magnitude and angle of the unbalance in the correct plane, you can correct it by adding or removing material from the workpiece. For the components which are not tools, the most widely used material adding method of drilling center is welding counterweight on the components.
CNC machining (CNC machining) refers to the processing with CNC machining tools. The index controlled machine tool is programmed and controlled by NC machining language, usually G code. NC machining G code language tells CNC machine tool which Cartesian position coordinates, and controls the tool feed speed and spindle speed, as well as tool converter, coolant and other functions. Compared with manual machining, CNC machining has great advantages, such as the parts produced by CNC machining are very accurate and repeatable; CNC machining can produce parts with complex shapes that cannot be completed by manual processing. CNC machining technology has been widely promoted, most of the machining workshops have the ability of NC machining. The most common NC machining methods in typical machining workshops are CNC milling, CNC lathe and CNC EDM wire cutting (WEDM). The tool for NC milling is called CNC milling machine or CNC machining center. CNC turning lathe is called CNC lathe center. NC machining G code can be manually programmed, but usually the machining workshop uses CAM software to automatically read CAD file and generate G code program to control NC machine tool.
