Leather-cup assembling device of plunger type brake master cylinder

The utility model discloses a leather-cup assembling device of a plunger type brake master cylinder, and belongs to the technical field of automobile brakes. One end of a leather-cup assembling carrier is in the structure of an inverted cone, an axial main positioning hole is formed in the center of the leather-cup assembling carrier, an axial sub positioning hole is formed in the leather-cup assembling carrier, a main spindle is connected with the main positioning hole in a penetrating mode, and a sub spindle is connected with the sub positioning hole in a penetrating mode. The leather-cup assembling device of the plunger type brake master cylinder has the advantages that the structure is novel and simple, and manufacturing cost is low; since the three components are all machining parts which are low in manufacturing difficulty and manufacturing cost, the leather-cup assembling device of the plunger type brake master cylinder is simple to operate and does not cause damage to a leather cup, assembly quality is high, and assembly efficiency is high; and the leather-cup assembling device of the plunger type brake master cylinder is wide in application scope, and serialization is easy to achieve.