Press machine experiment table capable of adjusting radius of crank

A press machine experiment table capable of adjusting the radius of a crank comprises a press machine and an experiment table used for placing the press machine, wherein the press machine comprises acrank shaft capable of adjusting the radius of the crank, a connecting rod assembly, a sliding block assembly and a box body; the crank shaft capable of adjusting the radius of the crank comprises aneccentric wheel set, a straight shaft, a key and a set screw; the crank shaft is mounted on the box body through a bearing seat; and the connecting rod assembly is arranged on the outer side of the crank shaft and comprises an upper connecting rod and a lower connecting rod. The press machine experiment table capable of adjusting the radius of the crank has the technical points that the adjustability of the crank shaft can be enhanced, the number of crank throws on the crank shaft can be adjusted by changing the number of eccentric wheels, or the radius of the crank shaft can be changed by changing different types of e