xiehe model

In order to understand the working principle of small machining centers, it is first necessary to clarify the components of small machining centers. Small machining centers are mainly composed of five parts: CNC system, detection device, drive device, machine tool drive chain, and servo motor. Each part has a special function. , Let’s introduce their respective working principles from these five parts.

The first part: CNC system: equivalent to the brain of a small machining center, it needs to process electrical signals from detection devices, drive devices, and servo motors, clarify the overall status of the machine tool, and give instructions for the next step. To give a simple example, a small machining center executes a tool change command. The detection devices involved include servo motor, spindle clamping tool sensor, and tool magazine number sensor. The system determines the spatial position of the spindle movement through the servo motor, and determines whether the tool is installed on the spindle through the spindle clamping tool sensor. The sensor confirms the number of the tool on the magazine at this time. The final control system uses the signals transmitted by different detection devices as reference data at different times to make the next step. The numerical control system directly determines the stability of the small machining center, so it is necessary to choose the system carefully.

The second part: drive device: equivalent to the cerebellum and brainstem of a small machining center, it can process some low-level signals, such as the speed and position signals transmitted by the servo motor. The help system handles a large number of trivial tasks, and at the same time he directly controls the operation of the servo motor. So its role is also very important.

The third part: detection device: it is equivalent to skin, eyes, and ears. It needs to collect the state of the machine tool through sensors and provide motion data reference for the system. The failure of the sensor will cause the machine tool to fail to receive the corresponding signal, which will greatly increase the accident rate.

The fourth part: Servo motor: It is equivalent to the heart and is the main power source of the small machining center. Because of the built-in position sensor and speed sensor, it acts as a part of the detection device, so the servo motor directly determines the accuracy of the machine tool.

The fifth part: machine tool transmission chain: equivalent to the muscles and limbs of a small machining center, it can transmit the power of the servo motor and serve the purpose of power transmission. It is the mechanical part that mainly determines the accuracy of the machine tool.

By understanding the five important components of the small machining center, it is easier for us to understand the principle of the small machining center. The small machining center transmits the signal to the system through the detection device, the system makes an action instruction, the driver and the transmission chain perform the action, and the final detection device The action signal is fed back, and the system judges that the execution command is completed. This is the working principle of small machining centers. I believe that understanding the principles of small machining centers will play an important role in guiding the purchase of small machining centers.