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The use of hydraulic bending machine and the method of pressure adjustment

by:WORLD     2022-08-11

Everyone must be very unfamiliar with hydraulic press brakes. Small face world press machine will show you the use and pressure adjustment methods of hydraulic press brakes.

How to use the hydraulic press brake:

1. The first is to turn on the power supply, turn on the key switch on the control panel, and then press the oil pump to start, so that you can hear the rotation of the oil pump.

2. Stroke adjustment, the use of the bending machine must pay attention to the adjustment of the stroke, and be sure to test the car before bending. When the upper die of the bending machine goes down to the bottom, there must be a gap of plate thickness. Otherwise, it will cause damage to the mold and the machine. The adjustment of the stroke also has electric quick adjustment and manual gastric adjustment.

3. For the selection of the bending notch, it is generally necessary to select a notch with a width of 8 times the thickness of the plate. For bending 4mm sheet, you need to choose a notch of about 32.

4. The rear gauge adjustment generally has electric quick adjustment and manual fine adjustment, the method is the same as that of the shearing machine.

5. Press the foot switch to start bending. The bending machine is different from the shearing machine. It can be released at any time. When the foot is released, the bending machine stops and continues to descend.

How to adjust the pressure of hydraulic bending machine?

1. Adjustment of the upper limit of the slider

Adjusting the position of the collision block II can make the rising slider stay at the required top dead center position, which can shorten the stroke interval of the slider, reduce the working cycle time, and thus improve the production rate.

2. Adjustment of upper and lower die gaps

Operate the button on the button box at the lower right of the workbench, and operate in the direction indicated by the sign. The initial adjustment gap should be larger than the thickness of the plate, and the gap should be trimmed according to the angle of the folded workpiece. The handwheel can also be used for fine adjustment, and the adjustment value is displayed by the calculator.

3. Adjustment of bending force of hydraulic bending machine

Calculate the kN value of the sheet metal bending force in the table or according to the bending force calculation formula, and calculate the indicated pressure P value according to Table 1, and then adjust the handwheel of the relief valve 8 so that the force generated is slightly larger than that of the folding plate The kN value can be used.

4. Adjustment of back gauge interval

The back gauge is used for positioning in the length direction when the sheet is bent. The button on the front button box controls the motor to adjust. The adjustment value can be read from the revolution table on the button box. The conversion value of the revolution table is 0, 1mm/revolution, and there is a handwheel to stop fine-tuning.

5. The foot switch can make the slider move up or down, and the operation is cumbersome.

The above is the introduction of the use and pressure adjustment method of the hydraulic bending machine, I hope it will be helpful to everyone.

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