Front-mounted hob cylinder and hob cylinder assembly

The utility model relates to the technical field of hobbing cutter cylinders, in particular to a front-mounted hobbing cutter cylinder and a cutter cylinder assembly. The front-mounted hobbing cutter cylinder comprises a cylinder body, the end, used for mounting a hobbing cutter, of the cylinder body serves as the front end, two mounting grooves with forward openings are formed in the front portion of the cylinder body, positioning and pressing structures are arranged in the mounting grooves and used for pressing the end of a cutter shaft of the hobbing cutter, and two avoiding grooves are further formed in the front portion of the cylinder body. The receding grooves are used for receding a hob body of the hob, and a supporting body used for supporting the middle of a hob shaft of the hob is arranged between the two receding grooves. The supporting body is designed on the cylinder body to provide supporting force for the middle position of the cutter shaft, three-point supporting of the cutter shaft is achiev