During the bending process of CNC bending machine , we often encounter some difficult-to-hold positioning. Just like adjust the pressure
There are certain processing hidden dangers in the processing process, and some small-size parts with large production efficiency and low production efficiency in a single batch . which optimizes by custom-made special forming molds on the bending machine.
Compared with the previous hard die processing by press, the special forming molds matched with the bending machine are more flexible in mold switching, debugging and processing, and the return on mold investment is higher. Processing on the bending machine, the production efficiency is more significant, the product quality is more stable, and the hidden safety hazards of small-sized parts in the processing of the bending machine in the past avoid effectively .
Pressure adjustment of CNC bending machine
Adjustment of the slow motion of the slider of the hydraulic bending machine
When the slider goes down, the collision block “I” touches the stroke switch to make the slider move slowly, and the length of the slow stroke time adjust by an adjustable potentiometer.
Adjustment of slider upper limit of hydraulic bending machine
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 and reduce the working cycle time
Adjustment of the gap between the upper and lower dies of machine (the slider must stop at the top dead center)
a: Operate the button on the button box at the lower right of the worktable and operate in the direction indicated by the sign. The initial adjustment gap should greater than the plate thickness, and the gap should trim according to the angle of the folded work piece. You can also use the handwheel to stop the fine adjustment. The adjustment value display by the calculator. Every single digit increase or decrease is 0.1mm (0.1mm/rev).
b: If the two ends of the workpiece angle are not different, loosen the nail, move the connecting rod to the left, disengage the left and right rotating joints, turn into the hand wheel (up or down) to change the mechanical limit interval of one end, and reach the end of the fine adjustment workpiece The purpose of perspective. Note: After adjustment, restore and reset the nails, otherwise mechanical accidents will occur.
c: If the angle of the workpiece is different at both ends, and the middle angle (large or small) is not different, this can make the upper die fine-tune the installation. When using fine adjustment, the upper die is close to the lower die slot, slightly loosen the middle upper die connection template and the adjustment block Screw, (the upper mold does not fall as a guideline) and then adjust the upper adjustment block (slightly tapping left or right). In the center with a small middle angle, make the upper die protruding by an appropriate amount, fasten the supporting nails, and try to fold until the full-length angle of the workpiece reaches the allowable value.
Adjustment of bending force of hydraulic bending machine
Calculate the KN value of the sheet 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 overflow valve 8 to make the force generated is slightly greater than the folding plate KN value.
Adjustment of backgauge interval of machine
The back gauge use the positioning in the length direction when bending the sheet. The button on the front button box controls the motor to adjust. The adjustment value can read from the revolution table on the button box. The conversion value of the revolution table is 0.1mm/rev, and there is handwheel to stop fine adjustment.