The selection of the cylinder is of crucial importance

The selection of the cylinder. According to the size of the load to determine the cylinder and output thrust and tension. General all press load theory required cylinder force equilibrium conditions, according to the different load rate of different speed selection, margin slightly make the cylinder and output force. Diameter is too small, the output power is not enough, but the diameter is too large, bulky equipment, increase cost, and increase the gas consumption, waste of energy. In fixture design, should try to use force, to decrease the size of the shape of the cylinder. According to the load status of cylinder and the load motion load and load factor F is determined, then according to the principle of using air pressure is the pressure should be less than %, according to the air pressure determined using pressure P. The single-acting cylinder according to the rod diameter and diameter ratio. , double-acting cylinder rod diameter and diameter ratio. ~。 Primary, and according to the formula can be obtained by the cylinder diameter D, the value of D for standardization. Such as D size is too big, can use mechanical force institutions mainly depends on the input into the compressed air flow, cylinder cylinder vent size and the size of the tube diameter. For high speed movement should be of great value. Cylinder speed is commonly ~ ㎜ / s. For high-speed movement of cylinder, should choose large diameter of the inlet pipe; In the case of load change, in order to get a slow but steady speed, can be used with throttling device or gas - Hydraulic damping cylinder, is easier to realize the speed control.