3results about How to "Smooth surface quality" patented technology

The application relates to the technical field of building construction, in particular to a steel formwork polishing device for building construction, which comprises a workbench; a supporting plate is fixedly connected to the top end of the outer wall of the workbench; a square plate is arranged on the inner side wall of the supporting plate; a circular plate is rotatably connected to the inner side wall of the square plate; a driving device is fixedly connected to the top end of the outer wall of the circular plate through a fixed block one; the driving device drives the rotating shaft and the polishing disc to rotate, the steel formwork is polished and cleaned, meanwhile, the rotating shaft drives gear one to rotate, gear one moves along the tooth groove of the annular rack one when rotating, the polishing disc is polished and rotates along with the circular plate, the cleaning range of the polishing disc is increased, the polishing disc can quickly clean the large-area steel formwork plane, the movement track of the polishing disc makes the steel formwork surface form irregular and multidirectional scratches, the one-way line and spiral line defects generated by the traditional single rotating direction polishing are avoided, and the uniform and smooth surface quality is obtained.

The application belongs to the field of industrial manufacturing, and discloses a path planning method of a 5-axis 3D printer, which comprises a representation method of a random shape entity, a nozzle direction constraint method on a contour, an entity filling path planning method and a sampling interpolation method. The representation method of the random shape entity extracts shape data of a CAD model of the random shape entity, decomposes the model into constituent surfaces and edges, and determines the order and parameter direction of each constituent surface. The nozzle direction constraint method on the contour adopts a side tangent direction and a transition surface normal direction, a gradually deformed transition layer and adaptive material extrusion. The entity filling path planning method selects the last deposition layer to coincide with the top surface, designs a filling layer, fuses the base and the top surface by using a surface transition concept, and generates an internal filling path. The sampling interpolation method samples and interpolates a path according to position, and converts the path into G-code to obtain a printing path. The application can eliminate step effects and internal voids, reduce non-feeding movements, and support complex structures without the need for support.

The application provides a preparation method of a high-strength steel plate composite vehicle body floor integrated battery upper cover, which comprises the following steps: preparing a PCM prepreg; pasting a PET film on the outer side of a steel plate; splicing and laminating the PCM prepreg on the inner side of the steel plate; plugging the hole positions on the steel plate by using rubber particles; placing the product on the lower die of a hot-pressing mold, and then preparing a formed product by heating and pressurizing the steel plate and the prepreg through the cooperation of the upper and lower dies of the hot-pressing mold to obtain a battery upper cover prefabricated part; demolding the battery upper cover prefabricated part, and then polishing to obtain a finished product of the vehicle body floor integrated battery upper cover. The high-strength steel plate and the PCM prepreg are first applied to realize the composite die pressing process, the product has high strength, smooth and flat surface quality, good sealing property, and realizes assembly without cracking; the production cycle is short, the operation is simple, the product qualified rate is improved, and the production cost is saved; and the vehicle body floor integration realizes the lightweight of the whole vehicle.