Roller return slide with semi-column type assembly in return section

Abstract

This invention provides a roller recirculation slide with a semi-cylindrical assembly in the recirculation section. Its main features include: the roller recirculation slide defines X, Y, and Z axes and is primarily composed of a slide rail, a slider, two end caps, and several rollers. The slide rail extends along the X-axis and has two first-side semi-cylindrical tracks, which, together with two second-side semi-cylindrical tracks on the slider, form a load-bearing flow channel. The slider also has a non-load-bearing flow channel, and its end defines an end face with the end of the load-bearing flow channel. The recirculation section of the end cap includes a recirculation outer wall and an arc-shaped concave flange, between which a semi-cylindrical assembly with a planar side and an arc-shaped side is inserted. By having the planar side abut against the end face and the arc-shaped side abut against the arc-shaped concave flange, a precise distance is formed between the arc-shaped side and the recirculation outer wall, ensuring smooth roller movement to achieve the recirculation purpose.

Claims

1. A roller recirculation slide with a semi-cylindrical assembly in the recirculation section, the roller recirculation slide basically comprising a slide rail, a slider, two end caps, and a plurality of rollers, the roller recirculation slide defining an X-axis, a Y-axis, and a Z-axis; wherein the slide rail extends along the X-axis, and two first side halves of the slide rail are protruded and spaced apart along the Y-axis; the slider is mounted on the slide rail in a slidable state along the X-axis, the slider having two second side halves spaced apart along the Y-axis. The slider has a second half-shaped track and a corresponding first half-shaped track, which are positioned opposite each other to form a load flow channel. A non-load flow channel is formed at the relatively far side interval of each of the second half-shaped tracks. An end face is formed between the ends of the load flow channel and the non-load flow channel. A return flow portion is formed on the inner side of each end cap assembly corresponding to the ends of the load flow channel and the non-load flow channel. A return flow outer wall is formed on the outer side of the return flow portion, and an arc-shaped concave flange is formed on the inner side of the return flow portion. The curved concave edge and the end face are for assembling a positioning semi-cylindrical assembly. The semi-cylindrical assembly includes a flat side and a curved side. The flat side abuts against the end face, and the curved side abuts against the curved concave edge. The curved side and the return outer wall are in a spaced-apart relationship. The distance between the curved side and the return outer wall is just enough to allow each roller to move smoothly to achieve the return purpose.

2. The return section of the roller return slide with a semi-cylindrical assembly as described in claim 1, wherein the arc-shaped side of the semi-cylindrical assembly forms two spaced roller limiting edges corresponding to the return outer wall, and a rolling sliding surface is formed between the two roller limiting edges according to the contour of the roller, so that the roller can achieve a better fitting effect when guiding the return flow.

3. The roller return slide with a semi-cylindrical assembly as described in claim 2, wherein the cross-section of the rolling sliding surface is either a circular arc surface or a Gothic surface.

4. The roller return slide with a semi-column type assembly as described in claim 1, wherein the load flow channel, the non-load flow channel and the return section are arranged in an upper and lower two-layer spaced configuration along the Z-axis, and the rollers in the two layers are each independently actuated in return flow.

Images