Punch

Abstract

The invention relates to a punch, comprising a base, an upper die, a lower die, a driving mechanism, a braking system, a safety protection mechanism, an index dial, an induction index hand, an induction trigger and a controller, wherein the driving mechanism is mechanically connected with the upper die and used for driving the upper die to move relative to the lower die so as to realize blanking of a base material to be processed; the brake system is mechanically connected with the driving mechanism and used for enabling the driving mechanism to stop driving the upper die when triggered; the safety protection mechanism is used for triggering the brake system when an object is detected between the upper die and the lower die; the index dial is arranged on the base and is provided with a plurality of scales distributed in equal angle relative to the center of the index dial; the induction index hand is used for indicating a scale corresponding to an upper die movement position; the induction trigger is used for triggering the controller when the induction index hand indicates a scale corresponding to the induction trigger; and the controller is used for starting the safety protection mechanism when triggered.

Description

technical field [0001] The invention relates to a mechanical processing equipment, in particular to a punching machine which can conveniently detect the sensitivity of a brake system. Background technique [0002] Stamping processing is widely used in various fields such as electronics, electrical appliances, terminals, switches, plugs, and antennas due to its advantages of high production efficiency, high material utilization rate, low manufacturing cost, simple operation, and high product interchangeability. As the main equipment of stamping processing, punching machine can be used for processing such as bending processing, drawing processing, forming processing, etc. Edge and other punching and shearing processing. For details, please refer to the conference paper "Summary of the Ninth National Stamping Academic Conference" published by the Stamping Academic Committee of the Plastic Engineering Branch of the Chinese Mechanical Engineering Society in the 6th issue of "Jou...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing punching machines are equipped with safety protection devices. However, safety accidents will still occur in actual production, which not only endangers the personal safety of the operator, but also causes losses to the factory.

Usually, the cause of the accident is not the failure of the safety protection device, but the wear and tear of the brake system of the punch press, which reduces the sensitivity. After the safety protection device takes effect, the brake system cannot stop the movement of the upper die in time, resulting in the operator being crushed.

The brake system is generally set in a completely sealed flywheel, and the operator cannot know the wear of the brake system through observation, so the sensitivity of the brake system cannot be easily known

If the brake system of the punch press is severely worn, it will constitute a serious safety hazard

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