2results about How to "Accurate rotation positioning" patented technology

This invention provides a plasma welding device and method for axial flow fan casings. It relates to the technical field of axial flow fan production equipment. The plasma welding device for axial flow fan casings includes a base and a plasma welding assembly. The top of the base is fixedly mounted with horizontally linearly distributed support side plates and a gantry frame. A first steering shaft is rotatably mounted on the support side plates. The first steering shaft has two sets of symmetrical casing fitting mechanisms (one above the other) for fixing the casing to be welded. A steering mechanism is provided on the support side plates, and the steering mechanism is fixedly connected to the first steering shaft. The plasma welding assembly includes an U-shaped bracket, and an L-shaped bracket is fixedly mounted at the bottom of the U-shaped bracket. This invention has the advantages of high automation, high welding efficiency and quality, and strong versatility.

This utility model relates to the field of medical device technology and discloses a rotatable hanging bracket, including self-locking universal wheels. A base is fixedly mounted on the upper end of each self-locking universal wheel. A rotating mechanism is rotatably connected to the upper surface of the base. A support column is fixedly mounted on the upper end of the rotating mechanism. A limit block is fixedly connected to the upper end of the support column. A fixing mechanism is fixedly mounted on the upper end of the base. Several positioning holes are fixedly mounted on the outer surface of the support column. Four hanging bracket mechanisms are snapped onto the outer wall of the support column. In this utility model, the rotation and fixation of the rotating bracket are controlled by the intermeshing of positioning teeth. The intermeshing of the positioning teeth provides precise rotational positioning, allowing the hanging bracket to accurately stop at the required angle, facilitating adjustments by medical staff according to patient position and nursing needs. Simultaneously, the design of a single hook that can move freely up and down allows for flexible adjustment of the hook height according to actual needs, adapting to the hanging of different specifications of medical items and improving the versatility of the hanging bracket.