Drilling, tapping, broaching and reaming device suitable for attaching seats of various appearances

The utility model relates to a drilling, tapping, broaching and reaming device suitable for attaching seats of various appearances. The problem that machining efficiency is low when the attaching seats of different appearances are machined in the prior art is solved. The device comprises a base, a clamp body, plane bearings composed of steel balls, check rings and bearing rings, a mandrel, a pressing screw, a pin, a nut, a changeable V-shaped block used for locating the appearance of a machined piece and a small V-shaped block used for locating the machined piece in the length direction. The base, the plane bearings and the clamp body are connected through the mandrel. The pin penetrates through the base and the plane bearings. The base is provided with a male end and a female end. The clamp body is provided with a lower spigot matched with the male end of the base and capable of moving relatively. The plane bearings are located in the female end of the base. The changeable V-shaped block is installed at the upper portion of one side of the clamp body. A long groove allowing the small V-shaped block to slide therein is formed in the clamp body. The pressing screw penetrates through the upper portion of the other side of the clamp body and the machined piece can be clamped between the changeable V-shaped block and the pressing screw. The device is easy and convenient to operate and reliable in localization.