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目前,我国生产的中、小型机械压力机,除可以满足国内需要外,尚有一定数量可供出口。从五十年代初至今,国内生产的中、小型机械压力机在结构上没有多大变化,机身的造型、构造及其刚度,特别是机床工作时接触刚度较差,至今没有改进。制动系统方面,公称压力在100吨以下的机床,多数仍用转键式或拔销式刚性离合器,空运转噪声在90分贝以上,不能实现滑块的寸动行程和瞬时(紧急)制动,滑块导向精度低,行程固定不可调,
At present, medium- and small-sized mechanical presses produced in our country have a certain number of exports for export, in addition to meeting domestic needs. From the early 1950s to the present, medium and small-sized mechanical presses produced domestically have not changed much in structure. The shape, structure and stiffness of the fuselage, especially the contact stiffness of the machine tool are poor, so far there is no improvement. Braking system, nominal pressure less than 100 tons of machine tools, the majority are still using the key switch or pull-out rigid clutch, air-conditioning noise at 90 dB or more, can not achieve slider inching stroke and instantaneous (emergency) brake , Slider low accuracy, fixed travel can not be adjusted,