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目前,国内外各厂对钢锉齿纹的制作仍然是采用传统的剁切方法,在锉坯表面通过两次连续剁切而形成互相交叉的齿纹,这种工艺较落后,效率低,由于剁切噪声对人的身体危害极大,是急需改进的。一、剁齿的噪声如图1所示,剁刀在凸轮——拨杆——弹簧的作用下,以很大的冲击力与锉坯表面接触,剁出齿纹。由于拨杆与凸轮的频繁碰撞,以及剁刀对锉坯的冲击,而产生很大的噪声和强烈的振动。根据测定,单机噪声高达102dB,年间综合噪声高达107dB。工人长期工作在强烈噪声环境中,工作三十年,听力
At present, the domestic and foreign factories on the production of steel tooth file is still the use of the traditional chop method, the surface of the file blank by two consecutive chop and the formation of cross-tooth pattern, the more backward technology, low efficiency, due to Chopping noise on the human body is extremely harmful, is in urgent need of improvement. First, the noise of the chop teeth shown in Figure 1, the chopper blade - lever - the role of the spring, with a great impact on the surface contact with the blanks blanked teeth. Due to the frequent collision of the lever with the cam, as well as the impact of the chopper on the rasp, great noise and strong vibration are generated. According to the measurement, stand-alone noise up to 102dB, the integrated noise up to 107dB. Long-term workers in a strong noise environment, work for thirty years, hearing