Accuracy and detection method in hydraulic press stamping

How much do you know about the accuracy and detection methods in hydraulic press stamping? Below are professional hydraulic press masters who will tell you the accuracy and detection methods in hydraulic press stamping.

1. The flatness of the task surface and the bottom surface of the slider

The detection method is to place the inspection surface of the flat ruler on the hydraulic press table in different directions, and use a feeler gauge to measure the parallelism between the inspection surface of the flat ruler and the task table. The tolerance on a 1000mm length is typically 0.05mm.

2. The parallelism of the slider stroke to the task table

The detection method is to use a dial gauge to move longitudinally and laterally on the bottom surface of the slider and the task table, and the maximum difference between the dial gauge readings is the measured value. The allowable difference in the length of the front and rear 1000mm is 0.13mm. For the open hydraulic machine, only the front end of the slider is allowed to deviate downward. The length of the sweeper is 0.10mm in the length of 1000mm left and right.

3. The verticality of the slider stroke to the task table

The detection method is to fix the dial indicator on the slider, move up and down together with the slider, fix an angle ruler on the task table, and the maximum difference between the dial indicator readings. The tolerance is 0.3-0.4mm on the length of the 150mm stroke. For open hydraulic presses, the slider can only be biased to one side of the fuselage when it is down.

Fourth, the parallelism of the center line of the die shank hole to the stroke of the slider

Pull out a test rod from the die handle hole of the slider, fasten it on the task table and place a dial indicator so that the thimble of the dial indicator is in contact with the surface of the test rod, so that the slider moves up and down slowly, and the dial indicator is read out. Maximum difference in meter readings. 0.05mm tolerance on 300mm stroke.

Notice

The detection of the above-mentioned precision is averaged for the measurement of the vertical and horizontal directions.

During the operation of the hydraulic press, the above-mentioned accuracy should be checked regularly, and if it is found that it does not conform to the rules, it should be adjusted and repaired in time to avoid affecting the quality of production, the life of the mold and the function of the hydraulic press.

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