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前言近几年来锻压机械发展很快,我国锻压机械的产量逐年增加,它在机床总拥有量中的构成比也在不断上升。而机械压力机又是锻压机械中使用得最多、最广的一种。机械压力机的生产特点是操作简单,速度快,生产率高。由于这些特点,给操作者带来了一些特殊的影响:如果是手工上卸料,由于操作简单和频繁,容易引起精神疲劳,特别是采用脚踏板启动的情况下,容易发生误动作,造成人身设备事故;由于生产率高,用手工上下料,体力消耗较大,也容易产生动作失调而发生事故;由于速度快,当手工操作时,如果有一个料放得不正确或放重了料,因人脑的本能作用,容易
Foreword Forging machinery in recent years the rapid development of China’s forging machinery production increased year by year, it is in the total amount of the machine tool in the composition ratio is also rising. The mechanical press is the most used forging machinery, the most widely used. The production of mechanical presses is easy to operate, fast, high productivity. Because of these characteristics, the operator has some special effects: If the manual discharge, due to simple and frequent operation, easy to cause mental fatigue, especially in the case of pedal start, prone to malfunction, resulting in Personal equipment accidents; due to high productivity, manual loading and unloading, physical exertion larger, but also prone to misadventure and accidents; due to speed, when the manual operation, if there is a material placed incorrect or weight of the material, Because of the human brain instinct, easy