V type frame manufactured according to the standard of JB/T8047-95, also known as V frame, commonly used have three V-shaped iron, standup V-shaped iron and five V Fe V type frame with high-quality ht200-250 material, cast iron V type frame material can be divided into two types of ductile iron and gray iron, paired supply, mainly used for detection of precision shaft parts, crossed, instrument and mechanical processing of clamping.

The precision of the V type frame is divided into 1, 2, and 3.

Once in V and V I-shaped frame is mainly used for placing the shaft sleeve, disk circular workpiece, in order to find the center line to draw the center line. General I-shaped frame is a pair of two pieces, two pieces of the plane with V groove is installed in the ground. Precise V type frame size interaction surface between parallelism and perpendicularity errors in 0.01 millimeter, V groove center line must be in V type frame of the symmetry plane and the bottom surface of parallel, concentric degree, the parallelism error is 0.01 mm, V-shaped slot angle error at + 30 + 1 range. Precision V-shaped frame also do crossed with clamping bow of V type frame, the cylindrical workpiece is firmly clamped in the V type frame, turning to each position marking.

V type frame bearing requirements: I-shaped V type frame bearing is V type rack unit area to bear the weight, the V type frame deflection. In order to facilitate the understanding, we can as a V-shaped frame on the workpiece, in does not affect the normal use of, V frame can withstand the pressure.