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How to adjust the parallelism of the four-column hydraulic press

by:WORLD     2022-10-10
When the piston assembly of the four-column hydraulic press is lowered, it is found that there are two different vibration situations, which are most likely caused by the failure of the balance circuit of the equipment. How to solve this problem of the four-column hydraulic press?



Regarding the adjustment of the parallelism of the hydraulic machine, the parallelism of the slider and the worktable should be adjusted by adjusting the upper beam nut, so that the machine precision adjustment can have a better basis. Then adjust the equipment to a pressurized state, and tighten the parts connected with the movable beam and the movable beam to form a whole. At this time, the parts connected by the oil cylinder and the upper beam should also be tightened.












In this case, it is necessary to tighten the lock nut under the working table of the hydraulic press as much as possible, so that the parallelism of the hydraulic press can be judged from the perpendicularity of the lower plane of the movable beam and the piston rod. Only in the vertical state of the two, the use of the hydraulic press can obtain a more accurate effect.



It is not complicated and difficult to adjust the parallelism of the four-column hydraulic press, as long as the relevant knowledge is mastered, the work can be successfully completed. What we need to know is that when the parallelism of the hydraulic press is adjusted, the slider cannot slide down and the pressure-resistant pressure pier is placed after the mold is removed, because pressure is required during the adjustment process to ensure the smooth progress of this work.




Before adjusting the four-column hydraulic press, loosen the four locking nuts on the upper beam. The dial indicator first checks the parallelism between the lower plane of the movable beam and the upper plane of the worktable. If it does not meet the requirements, tighten or loosen the first two adjusting nuts or the last two adjusting nuts under pressure.














until the measurement adjustment meets the requirements. After the front and rear parallelism meets the requirements, use the above method to measure and adjust the left and right parallelism. After the middle position meets the requirements, it should also be checked whether the parallelism of the two positions of the movable beam under the dagger meets the requirements. When it is found that the deviation of the parallelism of the upper and lower positions is greater than the requirement, and the direction of the measurement data is opposite, it should be considered to check the assembly condition and check whether the accuracy of the movable beam and other parts meets the requirements.

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