The reason why the hydraulic bending machine can not start and how to deal with it
Hydraulic bending machine is by moving on the blade and fixed under the blade, the use of reasonable blade clearance, various thickness of the metal plate to apply shear force, plate according to the required size of the fracture separation.
A: hydraulic bending machine classification:
1.According to the shape of scissors classification bending machine according to the shape of scissors is divided into straight knife bending machine and disc knife bending machine.Straight knife bending machine according to the structure is divided into gantry bending machine and throat bending machine.According to the structure, disc cutter bending machine is divided into disc bending machine, roll shearing machine, multi-disc bending machine and rotary trimming bending machine.
2.According to the motion trajectory of the tool rest, the bending machine can be divided into the following categories:
(1) the knife rest moves along the vertical line. Since there is no rake Angle, the section of the upper blade must be processed into a diamond shape, so there are only two blades (rectangular blades with four blades are also available, but the cutting quality is poor).
(2) tool slide along the forward line (with the vertical Angle of 1 ° 30 '~ 2 °) movement, the blade section can be processed into rectangle has four blade, shear fracture basically at right angles to the surface。
(3) the cutter rest oscillates along the arc line, and the section of the shear blade should be processed into a diamond shape, so there are only two blades. Since the upper blade tilts forward slightly in the shear process, the shear quality is similar to the movement of the blade rest along the tilting line.
(4) the tool holder swings along the arc line with a forward inclination of up to 300, so the welding groove can be cut
3.According to the transmission mode of classification of bending machine according to the transmission mode is divided into: mechanical transmission bending machine and hydraulic transmission shear trigger
Two: hydraulic bending machine oil pump can not start the possibility of reasons:
1. The start, stop or emergency stop button of the oil pump is damaged.
2. Overload protection thermal relay is damaged.
3. The coil of ac contactor is open or damaged。
4. The thread head of the three-wire ac loop is loose or damaged.
5. Damaged oil pump motor or loose connection.
1. Check the corresponding electric shock or replace the corresponding button.
2. Reset or replace the thermal relay after finding out the cause and troubleshooting.
3. Replace the coil or ac contactor.
4. Check relevant circuit terminals and reconnect them.
5. Check the wiring head or replace the oil pump motor.