| 摘要 |
The present invention relates to a method of making a slider (2) of a linear guide device for guiding a movable body such as a work table or an industrial robot or the like of a machine tool under load which moves along a track rail (1) arranged at a fixed portion such as a bed, a column or the like. The method comprises a first step of forming a block main body (8) made of a metal which becomes a core part of the slider (2) in a predetermined shape, and forming ball load rolling surfaces (43a,43b) on the block main body (18) by machine, and a second step of inserting the block main body (8) formed in the first step into a mold (61) and executing an injection molding of a synthetic resin by which ball retaining portions (45) are built on both sides of the load rolling surfaces (43a,43b) of the block main body (8). In the first step pairs of smooth surfaces (5) for shielding the molten synthetic resin are formed along both longitudinal edges of the load rolling surfaces (43a,43b) formed on block main body (8) whereas according to the second step the block main body (8) is fixed at a predetermined position in the mold (61) by bringing a projected support portion (63) on the side of the mold (61) into contact with the smooth surfaces (50) for shielding the molten synthetic resin. <IMAGE> |
