Introduction to the transmission system of deep hole internal grinding machines

Most of the transmission system of deep hole internal grinding machine adopts hydraulic transmission, which has the advantages of smooth operation, wide range of stepless speed change, small shock and vibration, and easy to realize automation. When working, the oil pump sucks in the oil in the oil tank through the oil filter and turns it into high-pressure oil. After the oil passes through the rotary valve, throttle valve and reversing valve, it enters into the right chamber of the oil cylinder and pushes the piston, piston rod and worktable to move to the left. The oil in the left chamber of the cylinder flows into the oil tank through the reversing valve. When the table moves to the end of the stroke, the right stroke limiter fixed on the front side of the table pushes the reversing handle from right to left and moves the piston rod and piston with the reversing valve to the dotted line position. Then, the high-pressure oil flows into the left chamber of the cylinder to return the table. The oil in the right chamber of the cylinder also flows back to the tank through the reversing valve. This cycle is repeated to realize the longitudinal reciprocating motion of the table.

　　The stroke length and position of the table can be adjusted by changing the distance and position between the stroke stops. When the rotary valve rotates 90 degrees. When the high pressure oil from the oil pump flows back to the oil tank and the table stops working. The function of the safety valve is to maintain a certain oil pressure in the system and to discharge excess high-pressure oil into the oil tank.

　　The following points should be noted for the grinding operation of the deep hole internal grinding machine:

　　(1) The operator must wear a working cap and press long hair into the cap to prevent personal accidents.

　　(2) When many people share a grinder, only one person can operate it and pay attention to the safety of others.

　　(3) The grinding wheel is running at high speed. It is prohibited to stand facing the grinding wheel

　　(4) After the grinding wheel is started, it must be led to the workpiece slowly, and sudden contact with the workpiece is strictly prohibited. The amount of back cutting should not be too large, in order to prevent the workpiece from flying out due to excessive back force.