Clamping cylinder is a commonly used hydraulic actuator, whose main function is to clamp or fix objects. Its working principle is based on the conversion and transmission of hydraulic pressure.

The clamping cylinder consists of a cylinder barrel, piston, piston rod, seal, clamping mechanism, etc. When the working medium (hydraulic oil) of the clamping cylinder enters the cylinder barrel through the oil inlet hole, the pressure oil enters one side of the cylinder through the control of pipelines and valves, pushing the piston rod outward to achieve the purpose of clamping or fixing objects.

Specifically, when hydraulic oil enters the cylinder barrel, the piston is pushed outward. Under the action of the clamping mechanism connected to the piston rod end, the object is clamped or fixed. The direction of piston movement and the magnitude of force depend on the way hydraulic oil enters and exits, as well as the design of the piston rod and clamping mechanism.

The clamping mechanism of the clamping cylinder can take various forms, such as screws, closed-loop mechanisms, friction discs, etc. Among them, the screw mechanism is a common one, which works by changing the position of the clamping mechanism through the rotational motion of the screw, thereby achieving clamping or fixing of the object. The clamping mechanism is usually composed of clamping claws, pressure plates, etc. Its action is transmitted to the clamping mechanism by a screw, which applies clamping force to the object.

The working principle of the clamping cylinder also involves pressure control. Normally, the working medium of the clamping cylinder is hydraulic oil, which can be controlled by changing the on/off state of the oil circuit to regulate the flow of hydraulic oil in and out, thereby controlling the working state of the clamping cylinder. The magnitude of pressure will affect the clamping force, so the working pressure can be adjusted by controlling the oil circuit and valves in the hydraulic system to achieve control of the clamping force.

In addition, the clamping cylinder can also achieve clamping and releasing actions by controlling the hydraulic valves in the hydraulic system. For example, the action control of the clamping mechanism can be achieved by controlling the opening and closing of valves and adjusting the inflow and outflow of hydraulic oil.

In summary, the basic principle of clamping the cylinder is to use hydraulic pressure conversion and transmission to drive the movement of the piston rod, and apply clamping force to the object through the clamping mechanism to achieve the purpose of clamping or fixing the object. The key is to control the working state and clamping force of the clamping cylinder by controlling the pressure, oil circuit, and valves in the hydraulic system.