Safety limiting device for die height regulation of punching machine

Abstract

The invention discloses a safety limiting device for die height regulation of a punching machine. The safety limiting device is characterized by comprising a detector block and microswitches; the detector block is fixedly installed on a guide column of a sliding block regulating device; an installation seat is fixedly arranged at the upper end of a sliding block; the microswitches are fixedly installed on the installation seat; two vertically-arranged contact protruding blocks are integrally arranged on the side, facing the microswitches, of the detector block; the interval between the two contact protruding blocks is equal to the safety stroke of die height regulation; and the microswitches are located between the two contact protruding blocks. The safety limiting device has the beneficial effects that through cooperation of the detector block and the microswitches, when the die height of a die is regulated through the sliding block regulating device and the sliding block moves vertically and exceeds the safety stroke, the contact protruding blocks on the detector block touch the microswitches, the microswitches feed back signals to a control system, and the control system controls the sliding block regulating device to stop regulation; and therefore, even when a program is set mistakenly or an operator does not conduct recognition correctly, the over-stroke regulation of the sliding block can be prevented through the safety limiting device as well, an accident is avoided, and the safety reliability is greatly improved.

Description

technical field [0001] The invention relates to the mold height adjustment of a punching machine, in particular to a safety limit device for adjusting the mold height of a punching machine. Background technique [0002] Slider adjustment devices are generally used in punching machines to adjust the die height. At present, the control of the mold height adjustment in the punch press is mainly through the PLC program to pre-set the upper and lower limit values ​​of the mold height adjustment. When the mold height adjustment exceeds the set value, the system controls the slider adjustment device to stop running. In addition, the adjustment amount can be recognized by the operator's naked eyes, and when the slider moves beyond the adjustment amount, it will be stopped manually. However, simply relying on the program setting and the identification of the operator to control the adjustment of the mold height, when the program setting is wrong or the operator does not recognize it...

AI Technical Summary

Problems solved by technology

However, simply relying on the program setting and the identification of the operator to control the adjustment of the mold height, when the program setting is wrong or the operator does not recognize it correctly, it will lead to over-travel adjustment of the slider, resulting in damage to the mold and punch, or even endanger the personal safety of the operator

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