2results about How to "Control deflection" patented technology

This invention discloses a composite steel frame connection structure and method for a flat beam-wall panel-column structure. In the column-column and beam-column composite connection system, the steel columns and flat beams are made of hot-rolled steel and can be prefabricated in the factory. After being transported to the site, they are connected using composite connectors and high-strength bolts. The beam-slab composite connection system tightly connects the prefabricated floor slab and flat beams through embedded parts in the steel beams, pre-reinforced steel bars in the floor slabs, threaded shear fasteners, and a portion of cast-in-place concrete, enabling both to share loads and deform collaboratively. The modular walls of the composite wall composite connection system consist of expanded clay concrete filling material and a wall skeleton, connected to the flat beams and multifunctional embedded parts on the steel columns. Adjacent composite walls are connected by mortise and tenon joints on cold-formed thin-walled steel units at both ends. This invention meets the overall load-bearing, energy-saving, and seismic resistance requirements of modern prefabricated building systems, significantly improving construction efficiency and ensuring construction quality.

A fixture device for machining Niemann worm gears using seven-axis five-linkage CNC milling includes a fixture support friction-reducing disc. An oil spraying lubrication assembly is floatingly and fixedly mounted on the upper surface of the fixture support friction-reducing disc. The lower surface of the oil spraying plate has multiple through holes. A clamping assembly is fitted onto the fixture support friction-reducing disc through these through holes, facilitating high-speed rotation around the central axis following the friction-reducing disc. A lifting column assembly is fixed to the oil spraying lubrication assembly, a tailstock support assembly is fixed to the lifting column assembly, and a circumferential limiting assembly for the oil spraying plate is fixed to the ground inside the machine tool's working chamber. This invention is used for milling Niemann series worm gears on a seven-axis five-linkage CNC machine tool, ensuring smooth side milling and preventing worm gear deformation. The adjustable length of the lifting column assembly and tailstock support assembly allows the fixture to adapt to the machining of worm gears of various geometric sizes and shapes, highlighting the adaptability and versatility of the fixture for vertical milling of worm gears.