The invention discloses a
brake hub
honing head with an improved structure. The
brake hub
honing head comprises a jacket, a regulating mandrel, at least one
grinding stick holder, an ejector pin and a
grinding stick, wherein the regulating mandrel can rotate in the circumferential direction, and can flexibly move and be located in the jacket in the axial direction; the
grinding stick holder is arranged at the outer side of the jacket; a radial through hole is formed in the side wall of the jacket; the ejector pin is movably inserted in the through hole, the outer side wall of the regulating mandrel is pressed against by one end of the ejector pin, and the inner side wall of one end of the grinding stick holder is tightly pressed by the other end of the ejector pin; the grinding stick is fixedly arranged on the outer side wall of the grinding stick holder; the outer side wall of the regulating mandrel takes the shape of a
conical surface, and the outer
diameter of one end of the
conical surface is gradually decreased; and the other end of the grinding stick holder is connected with the outer side wall of the jacket in a hinging way. According to the invention, the grinding stick holder is driven by the outer side wall of the regulating mandrel to make radial deflection motion through the ejector pin, and the
honing head takes the shape of a conic structure during grinding, so that the sufficient grinding of the bottom end edge of a
blind hole of a
brake hub can be guaranteed, the cylindricity of the bottom end of the
blind hole of the brake hub can be guaranteed, and the brake hub is enabled to be more stable and durable in the work process.