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在汽车制造业中,圆球面的加工非常普遍。在我厂生产的SX250型越野汽车中,属于圆球面类型的零件达五、六种之多。圆球的加工精度直接影响到汽车行驶的安全性及操作灵活性,以往常采用旋风装置。由图1中看出:圆球尺寸精度由AB的尺寸决定。在加工过程中,由于存在着刀具磨损及安装精度误差,这些因素直接影响圆球的精度,所以采用此法车削有精度要求的圆球并不适宜。其次,旋风铣削头由专用电机带动,所以转速不能调整,这就影响了圆球表面光洁度。另外,一种旋风铣削装置只能铣削一种圆球,通用性不大。为此,特设计了如图2所示的车削圆球装置。此装置克服了旋风铣圆球的缺点,结构如图2所示。
In the automotive industry, the processing of spherical surface is very common. SX250 off-road vehicles produced in our plant, the type of spherical spherical parts of up to five or six. Ball machining accuracy directly affects the safety of the car driving and operational flexibility, the cyclone used to be used. Seen from Figure 1: Ball size accuracy by the size of the AB decision. In the process of processing, due to the existence of tool wear and installation accuracy error, these factors directly affect the accuracy of the ball, so using this method turning precision ball is not appropriate. Second, the whirlwind milling head driven by a special motor, so the speed can not be adjusted, which affects the ball surface finish. In addition, a whirlwind milling device can only milling a ball, versatility is not large. To this end, specially designed as shown in Figure 2 turning ball device. This device overcomes the shortcomings of cyclone milling ball, the structure shown in Figure 2.