A special tool for interference fit of bushings to parts

Abstract

The utility model relates to the technical field of precision machinery assembly, and specifically discloses a special tool for interference installation of a bushing and a part. It comprises a C-shaped clamp body, a screw, a top block and a sleeve. The upper end of the C-shaped clamp body is provided with a threaded hole, and the lower end is provided with a profiled support surface matching the shape of the part to be installed, which is used to support and position the part to be installed. The screw is screwed into the threaded hole of the upper end of the C-shaped clamp body and is connected to the upper end of the top block, which is used to transmit axial pressure. The lower end of the top block is connected to the sleeve. The sleeve is placed above the bushing and is made of a material with a hardness lower than that of the bushing and the part to be installed, which is used to buffer the pressing force and protect the surface of the bushing. Axial pressure is applied by tightening the screw, and the bushing is pressed into the part to be installed. The utility model can achieve precise control of the interference installation of the bushing, significantly improve the assembly efficiency and product reliability, and is suitable for high-precision manufacturing scenarios such as aerospace and high-end equipment.

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