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Precautions for stamping die installation
General precautions for mold installation-check the punching device on the press and temporarily adjust it to the highest position to avoid bending when adjusting the closing height of the press; check the difference between the closed height of the mold and the closed height of the press Whether the relationship is reasonable; check whether the lower mold ejector rod and the upper mold punching rod meet the requirements of the press's removal device (for large presses, check the air cushion device); the upper and lower mold plates and the bottom surface of the slider should be wiped off before the mold is installed Clean and check for relics to prevent the correct installation and accidents from being affected.
General sequence of mold installation (refers to mold with guide pillar guide):
①Adjust the height of the press slider according to the closing height of the die, so that the distance between the bottom plane of the slider and the work surface when the slider is at the bottom dead center is greater than the closing height of the die.
②First raise the slider to the top dead center, place the die at the specified position on the worktable of the press, then stop the slider at the bottom dead center, and then adjust the height of the slider so that its bottom plane is in contact with the top surface of the die seat . For the die with a die handle, the die handle should enter the die handle hole, and the die handle should be fixed by the pressure block and the screw on the slider. For a large die without a die handle, the upper die base is generally fastened to the press slider with screws, and the lower die base is preliminarily fixed on the press table (without tightening the screws).
③Adjust the slide block of the press by 3～5mm, start the press, idle stroke 1 to 2 times, stop the slide block at the bottom dead center, and fix the lower die seat.
④ Carry out a test punch, and gradually adjust the slider to the desired height. If the upper die has an ejector pin, the discharge bolt on the press should be adjusted to the required height.