| 摘要 |
PURPOSE:To improve assembling work efficiency and motion performance by connecting elastic structural bodies through plate-shape links, and forming an error correcting structure by the elastic deformation of a groove in its fulcrum part of combination of units or components. CONSTITUTION:Round grooves 1 in a semi-circular shape are formed in horizontal and parallel conditions to each other, and a parallel link is formed from A, B which connect a groove center P point. When a C-surface is fixed and a load is applied in D direction, the parallel link A, B is elastically-deformed with the P point as a fulcrum. When the parallel link A, B which connects the four P points is formed into such a structure so have rigidity against the load D, and surfaces E and C move, kept in a parallel condition by value F. The rigidity, displacement or number of links of the round groove central part is set at a value necessary for error correction. In its upper part, rigidity is set high in the Z and Y directions, and flexibility is set high in an X direction. In a lower part, rigidity is set high in the X direction, and flexibility is set high in the Y direction, so that it is formed into a plate-shaped condition at a position where three axes cross orthogonally, and the round grooves are formed at both the edges in horizontal and parallel conditions. It is thus possible to provide an automatic correcting joint if a positioning error is generated in the X or Y direction. |
