Construction of CNC machine

Construction of CNC machine

1. Casting, which is the most important part of CNC machine, directly affects the accuracy, stability, wear resistance and service life of computer gongs. After the casting is finished, it is not immediately used in production. A good casting is after wind and rain, sun exposure, natural weathering, some of which are soaked by sea water. After the casting does not change, it will be processed. The machine tool is not easy to change. CNC machining can maintain the stability and accuracy of the machine tool for a long time.

2. CNC machine machining spindle, the spindle is used to directly face the workpiece, it is driven by the motor to work, high-speed rotation, on the spindle with a tool handle, it can chip the workpiece, to meet various production needs, the quality of the spindle will directly affect the processing accuracy, if there is wear of the internal bearing, it is easy to cause the spindle swing processing out of the thing accuracy naturally Deviate several wires. At present, the rotating speed of the main shaft is generally around 8000 revolutions, and the high-speed machine can achieve more than 20000 revolutions. In the traditional machining center, each machine has only one main shaft. In recent years, there have been two or more main shaft machining centers.

3. The screw rod is also a part of the fuselage. It is driven by the servo motor. The displacement of the working table is driven by the copper sleeve of the screw rod to meet the processing needs. If there is a gap between the screw rods, it is also directly reflected in the processing accuracy and smoothness.

4. Dongguan machine parts processing motor, there are two kinds of motors: servo motor and frequency conversion motor. The stability of servo motor is good, the power of spindle drive motor is large, and the cooperation rate of three-axis drive motor is small.

5. The coupling is installed between the screw rod and the motor, which is only a linkage.

6. The lubricating cold system is composed of automatic oil pump, spindle oil cooler and chip liquid circulation system. The oil is fed automatically without manual operation. When the machine tool is working, the oil is pumped once every few minutes, and the oil pipe is connected to every corner, such as screw rod, guide rail, etc. if the oil path is blocked, it is easy to cause the guide rail wear and affect the accuracy. Dongguan machine parts processing spindle oil cooling is to cool the spindle and add a cycle of cold power system, 8000 rotation of the spindle can not be, 8000 rotation of the spindle must be equipped with more than. The chip liquid circulation system uses the pumping motor to pump up the oil from the oil tank and rush it to the workpiece being processed.

7. When machining sheet metal, the requirements for sheet metal are not too high, as long as there is no oil leakage, but it also involves the problems of beautiful appearance and image

 

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