2results about How to "With automatic centering function" patented technology

An adjustable clamping device, namely a welding or cutting device, relates to the field of machine tool clamping device technology. It includes: a rotatable four-jaw self-centering chuck supported by a base, having four fixed seats evenly distributed around the rotational axis of the chuck, the four fixed seats being configured to synchronously move closer to or further away from the rotational axis; the adjustable clamping device further includes clamping assemblies corresponding to each fixed seat, the clamping assemblies including adjusting seats and jaws; the adjusting seats have first toothed portions, and the jaws have second toothed portions that mesh with the first toothed portions; the second toothed portions can mesh with the first toothed portions at different positions, so that the distance between the clamping portions of the two jaws in relative positions is adapted to the shape of the workpiece to be clamped, improving work efficiency. The aforementioned welding or cutting equipment includes the adjustable clamping device described above.

The application discloses a kind of multistage gradient drying and anti-oxidation treatment method and system of continuous electroplated tin sheet production line, belong to metallurgical heat treatment technical field.The method is sequentially arranged along the strip steel running direction three processing stages of edge automatic tracking air knife, integral pressurized air knife and steam air knife.First, the moisture of strip steel edge is accurately removed through automatic tracking technology;Second, the free water on the whole plate is removed through integral air knife;Finally, through the injection of superheated steam mixed gas, the residual moisture is completely evaporated at high temperature and an inert protective layer is formed on the surface of the strip steel, preventing tin layer oxidation.The application solves the "black edge" defect caused by incomplete drying of the edge in the traditional drying process and the high temperature oxidation problem, with the advantages of high drying efficiency, stable product quality and high automation degree.