夹具设计(圆周支座)

夹具设计（ Design of a fixture）

1，工件件以一端面和直径13的圆柱外圆柱面为定位基准，采用支撑板和V型块定位方案，其中平面限制了三个自由度，短V型块限制了两个自由度，共同限制了五个自由度，满足了钻孔所需限制的自由度。 1 positioning scheme

Parts in 13 of the end face and the diameter of the cylinder and cylinder for the locating datum, the support plate and a V-shaped block positioning scheme. The planar restricted three degrees of freedom, the short V type block limits the two degrees of freedom, together five degrees of freedom, meet the drilling required limitations to the self by degrees.

2夹紧机构

运用手动夹紧就可以满足对于生产率的要求。采用压板夹紧机构，通过拧动螺母来实现对工件的表面夹紧。压板夹紧力主要是防止工件在切削力的作用下产生震动。

2 clamping mechanism

The use of manual clamping can meet the requirements for productivity. The clamping mechanism is used to realize the surface clamping of the work-piece by the screw nut. Clamping force of the clamp is mainly to prevent the work-piece under the action of the cutting force generated vibration.

3夹具体

由于被加工零件有平行度要求，所以定位平面与V型块在安装时平行度在直径13范围内允许差0.01mm. 没有定位误差。 3 clip concrete

Because the parts are processed in parallel, so that the positioning plane and the V type block in the installation of parallel in the diameter of 13 to allow the error of 0.01mm. There is no position error.

Here I use a tighten nut to get the work-piece fixed.