Sliding seat of the four rollers in the arc guide on both sides of the precision V-plane rolling, each side of the center of the two rollers of the track is the same arc, and the arc guide is the same center of the circle; both sides of the two arcs of the track, is the same center of the circle; each side of the center of the two rollers of the track, for the same straight line; both sides of the two trajectories, is parallel to each other, and the distance between them is a constant. . In determining the relative position of the four rollers, equivalent to two parallel straight line trajectory and two concentric arc trajectory intersection (intersection of the position is a good idea, need to consider the characteristics of the transition phase of the movement), the distance between the two parallel straight lines is equal to the distance between the two concentric arcs so that the four intersection points is the center of the wheel position; roller so arranged, in the linear guideway and the arc guideway, the rollers and guideway are closely matched, and the guideway is a good match. and guide rail are closely matched, there is no gap, which ensures that the slide base and linear guide / arc guide respectively, the close fit.
In order to ensure that in the transition phase of the slide can be smooth through the arc section of Vermaes on each arc guide rail ends of a special special processing, the angle is slightly smaller than 180 °, near the end of the two sides of the V-guide surface after grinding, the formation of a special track, to ensure that and the linear guide rail of the joint of the smooth; more importantly, the role of this special track: the role of the wheels and the guide to produce a gap between the rail More importantly, the role of this special track is: the gap between the roller and the guide rail is generated in a very short period of time, it is a gradual change in the process, not a sudden change, which is very good to prevent the generation of impact. Even if the gap is the largest time, the V-guide is still stuck in the roller's V-groove, so the phenomenon of the slide will not occur to disengage.