The PLC surface grinder manufacturer tells you that the reversing mode and reversing control parameters in the system have a decisive effect on the reversing impact, and the surface grinder uses hydraulic transmission. Planning a new hydraulic reversing system is imminent. The following is a discussion of the hydraulic transmission reversing method of the surface grinder from the perspective of reversing methods and control strategies:

1. Select the reversing method of the stroke reversing valve: a pull rod is connected to the reversing spool to change the direction of the stroke reversing valve. Active commutation is accomplished by advancing the drawbar using the travel stops on the workbench. PLC surface grinder manufacturers tell you that when the worktable of the surface grinder is moving at a slow speed, when the reversing valve reaches the center position, both the left and right cavities of the hydraulic cylinder are either connected to pressure oil, or both are returned to oil, or both are closed. When there is no hydraulic pressure in the two chambers of the hydraulic cylinder, the movement of the worktable will stop, so the reversing valve cannot reach the other end, and the surface grinder also presents the so-called "dead point".
2. Select the reversing method of electromagnetic reversing valve: PLC surface grinder manufacturers tell you that the reversing signal is issued by pushing the stroke switch with the stroke block, and the reversing method of the stroke reversing valve is changed to an electromagnetic reversing valve. Making the electromagnet act to push the spool valve for reversing can avoid the "dead point"; but it is an on-off hydraulic valve that opens or closes instantaneously according to the command, that is, instantaneously connects or blocks the return oil channel. Such a hydraulic reversing system is used in There will be a big shock when commutating.
3. Select the reversing method of the electro-hydraulic reversing valve: the pilot valve is not reversing forward, and replacing the electromagnetic reversing valve with the electro-hydraulic reversing valve constitutes a new reversing method. The electro-hydraulic reversing valve consists of a pilot valve solenoid spool valve and a main valve hydraulic spool valve. The PLC surface grinder manufacturer tells you that once the control oil circuit switches the direction, the main valve spool of the surface grinder will move to another working position according to the pre-set speed. commutation "dead point".