Abstract: A rim drilling and milling machine has a bottom base, a table, and a clamping unit. The clamping unit is fixed on the table and has a clamping base and multiple clamping members. Each clamping member has at least one jaw each having a jaw body, a clamping groove recessed in the jaw body, and an abutting protrusion formed between a top surface of the jaw body and the clamping groove. A distance defined from a bottom surface of the clamping groove of each of the at least one jaw to a bottom surface of the bottom base ranges from 850 millimeters to 1000 millimeters. The rim drilling and milling machine can firmly and stably clamp a wheel rim, and the wheel rim can be clamped at a position for a user to easily see a processing area of the wheel rim.

Abstract: A rim trimming machine comprises a mounting rack, a first axial moving device, a second axial moving device, a cutter turret, a base, and a chuck. The mounting rack is a board and is disposed vertically. The first axial moving device is mounted to the mounting rack and has a first axial sliding stand being movable along a first moving direction. The second axial moving device is mounted to the first axial sliding stand and has a second axial sliding stand being movable along a second moving direction. The cutter turret is mounted to the second axial moving device and has a cutter. The base is spaced apart from the mounting rack. The chuck is mounted on the base and has multiple jaws, each jaw having a radius. The cutter is above the chuck, and is aligned to a position between two ends of one of the jaws.

Abstract: A wheel rim chuck has a chuck seat (10) and multiple soft jaws (20). The soft jaws are arranged radially at equiangular intervals and slidably mounted on the chuck seat (10). Each soft jaw (20) has a claw (21) having a protrusion (211), a clamping groove (213), and an inclined plane (216). The protrusion (211) protrudes from a side of the soft jaw (20) away from the chuck seat (10). The clamping groove (213) is recessed in a side of the protrusion (211) facing the center (111) of the chuck seat (10) and having a side wall (214) and a bottom wall (215). The inclined plane (216) extends longitudinally and obliquely from the bottom wall (215) away from the side wall (214) of the clamping groove (213).

Abstract: A rim drilling and milling machine has a base (10), a column (20), a turret (30), a saddle (40), a table (50), and a fixture unit (60). The fixture unit (60) has a foundation (61) and four clamping seats defined as two first clamping seats (63A) and two second clamping seats (63B). The first clamping seats (63A) are slidably mounted on the foundation (61) along a first radial direction, and are disposed at positions diametrically opposite in the first radial direction. The second clamping seats (63B) are slidably mounted on the foundation (61) along a second radial direction perpendicular to the first radial direction, and are disposed at positions diametrically opposite in the second radial direction. The four clamping seats can clamp at four equiangular points of a wheel rim.