Hydraulic lathe is a kind of mechanical equipment which realizes metal cutting by using hydraulic transmission technology. The high efficiency and precision of its control system are very important to ensure the machining quality and production efficiency. The control of hydraulic lathe mainly includes the control of hydraulic system, motion control and safety protection measures, the following will be detailed from these aspects of how to effectively control hydraulic lathe.

1. Hydraulic system control

The hydraulic system is the core of the hydraulic lathe, mainly through the adjustment of the oil pressure, flow to drive the actuator (such as tool carriage movement, tail frame top tightening, etc.) action. The control mode usually includes manual control and automatic control.

• Manual control: Used in debugging or maintenance, the operator directly controls the action of the hydraulic valve through the handle or button to adjust the on-off and pressure of the oil circuit to achieve separate control of each component.

• Automatic control: Used in normal processing, through the electro-hydraulic proportional valve, servo valve and other components integrated with the numerical control system, according to the preset processing program to automatically adjust the output of the hydraulic system, to achieve accurate position control and force control. This requires the control system to have good stability and response speed to adapt to the needs of different processing conditions.

2. Motion control

The motion control of hydraulic lathe mainly refers to the control of spindle rotating motion and tool feed motion. The spindle speed is achieved by adjusting the flow rate of the hydraulic motor, while the feed speed and position of the tool are accomplished by controlling the stroke of the hydraulic cylinder.

• Closed-loop control: In order to improve control accuracy, hydraulic lathes often use closed-loop control strategy. Through the sensor installed in the key position (such as displacement sensor, pressure sensor) real-time monitoring of the actual motion state, and the data is fed back to the control system, and compared with the set value for error correction, so as to achieve high-precision motion control.

3. Security protection measures

Safety is the first principle in the operation of any machinery. The hydraulic lathe should be equipped with an emergency stop button, overpressure protection device, overload protection and hydraulic leakage detection system, etc., to ensure that the power source can be quickly cut off in abnormal circumstances to prevent the expansion of accidents.

• Emergency stop: An emergency stop button is set in a prominent position on the operation panel and the machine. In case of an emergency, the operator can immediately stop all actions.

• Pressure and flow monitoring: Monitor the working status of the system through the pressure switch and flow controller. When the pressure or flow exceeds the preset safety threshold, the protection mechanism is automatically activated to avoid equipment damage.

To sum up, the effective control of hydraulic lathes depends on the fine adjustment of the hydraulic system, advanced motion control technology and comprehensive safety protection measures. Through the comprehensive management of these links, it can ensure the high efficiency, high precision and high safety of the hydraulic lathe in the processing process, and meet the high standard requirements of modern manufacturing industry for precision machining.