What is the tolerance range of precision screws?
What is the tolerance range of precision screws?
The application range of the oil pump is very wide. When it is used, the oil pump needs to be assembled. During the assembly process, when the pin is driven into the pin hole, it is generally held by the operator with a hammer, and then aiming at the top of the pin to press. Into the hole, due to the relatively high tolerance requirements for the depth of the pin pressing and the side clearance (the gap between the pin and the groove wall), the traditional operation method not only causes a high rejection rate and a long training time for personnel, but also The slow processing speed affects the production efficiency.
Many existing products need to use screws in the production process, especially in the field of nuclear power sluice gates, it is necessary to fill a part of the sluice gate with screws to fix the size and structure. If the fixing effect is not good, then It will lead to more leakage of water gates, waste a lot of water resources, and even cause safety accidents.
Gears, mechanical components with teeth on the rim that can continuously mesh to transmit motion and power, are mechanical parts with teeth that can mesh with each other. The gears used in industry are generally made of steel. The commonly used steels are quenched and tempered steel, hardened steel, carburized and quenched steel and nitrided steel. The strength of cast steel is slightly lower than that of forged steel, and it is often used in Larger-sized gears; gray cast iron has poor mechanical properties and can be used in light-load open gear transmissions; ductile iron can partially replace steel gears; plastic gears are mostly used in places where light loads and low noise are required, and are matched with them The gears are generally made of steel gears with good thermal conductivity.
Yueluo provides a thin-plate rivet method, which includes the following steps: providing a metal thin plate, a rivet and a thin-plate rivet fixture, the outer edge of the rivet is provided with an engaging structure, and the thin-plate rivet fixture includes a rivet head and a thin plate rivet fixture. The riveting head has a convex rib on the surface of the rivet head; a riveting hole is formed in the thin metal; The two sides of the metal sheet are extruded so that the protruding ribs are embedded in the metal sheet, so that the metal sheet is deformed, and the inner edge of the rivet hole shrinks inward to fix the occlusal structure.
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