针对汽车发动机针阀体转台式喷丸强化机的研制

Development of a rotary table shot peening strengthening machine for automotive engine needle valve body

介绍了为提高汽车发动机针阀体轴肩处的抗疲劳强度而研发的一种转台式喷丸强化机,本强化机采用2个工位,一个工位装卸工件,一个工位喷丸强化,以压缩空气为动力,带动高硬度钢砂,以大约70 m/s的速度冲击针阀体轴肩处,使弹丸覆盖率达99%以上,A型试片弧高值达0.55 A。本机采用PLC自动化控制,10寸触摸屏可视化操作,结构紧凑,是一种强化效果好、噪声小、污染少的绿色环保型设备。

A rotary table shot peening strengthening machine has been developed to improve the fatigue strength of the shoulder of the needle valve body in automotive engine.This strengthening machine uses two working stations,one is for loading and unloading workpieces,and the other is for shot peening strengthening.By using compressed air as the power,high hardness steel sand has been driven to im-pact the shoulder of the needle valve body at a speed of approximately 70 m/s,resulting in a shot cov-erage rate of over 99%and an A-type test piece arc height value of 0.55 A.The PLC automation con-trol and a 10 inch touch screen for visual operation have been adopted in this machine with a compact structure.It is a green and environmentally friendly equipment with good reinforcement effect,low noise,and less pollution.