The stroke control of the hydraulic cutting machine includes two aspects: upper limit position adjustment and lower limit position control. There are several ways to adjust the upper limit of the working mechanism.
1. Change the position of the travel switch and adjust it by mechanical-electric-hydraulic interlock control. In the 1960s and 1970s, many hydraulic cutting machines produced at home and abroad used this method to adjust the upper limit position of the working mechanism. In some new cantilever hydraulic cutting machines, there is also a machine-electric-hydraulic connection using the traditional hydraulic cutting machine. The type of lock control method.
2. Electric: The motor is adjusted by a mechanical transmission mechanism with a power shaft pressure plate.
3. Manual: Rotate the handwheel and directly adjust the vertical shaft pressure plate through the spiral motion of the lead screw.
4. Hydraulic: Rotate the handwheel and adjust it automatically through the hydraulic servo system.