论文部分内容阅读
一般内孔推刀是在专用拉刀磨床上刃磨刀齿的前角面。无专用拉刀磨床,则可在万能外圆磨床上刃磨。现简介如下。我厂在M131W型万能外圆磨床上,利用其头架与砂轮架能作适当回转的特点,在砂轮内孔磨具上装持碟形砂轮,通过修正与调整,从而刃磨推刀前角面。一、刃磨原理与分析由于推刀的前角面是一个具有中间圆柱体的盲内圆锥。所以它必需用砂轮的圆锥锥形部分刃磨,砂轮中心轴线与推刀中心轴线在同一平面内相互交叉(如图1所示)。为了正确刃磨出推刀的前角,在砂轮锥角为ω时,必须使夹角β=ω+γ。
General hole push knife is in the special broach grinder sharpening the rake angle. No special broach grinder, you can grind on a universal cylindrical grinder. Now the introduction is as follows. I plant M131W-type universal cylindrical grinder, the use of its head frame and the wheel frame can make the appropriate features of the rotation, the grinding wheel mounted on the wheel disc-shaped grinding wheel, through the correction and adjustment, which razor blade before rake face . First, the sharpening principle and analysis As the front angle of the push blade is a blind inner cone with an intermediate cylinder. So it must be grinding conical tapered grinding wheel, grinding wheel center axis and thrust knife center axis in the same plane cross each other (as shown in Figure 1). In order to correctly sharpen the rake angle, in the wheel cone angle ω, the angle must be β = ω + γ.