Stationary fixture for machining of aluminum alloy wheel

A stationary fixture for machining of an aluminum alloy wheel, comprising a machine tool base, a first support, a rotary joint, a first end cover, nuts, a first power shaft, a first sealing ring, bearings, a second end cover, a second sealing ring, a first L-shaped plate, airtight mechanisms, a power chuck, clamping jaws, a wheel, a first support plate, a linear single-axis robot, a second support plate, a second L-shaped plate, a third end cover, a first decelerator, a second power shaft, a first servo motor, a fourth end cover, a second support, a coupling, a connecting plate, a second decelerator, a second servo motor, a positioning column, a first hydraulic cylinder, a base, a movable plate, a dynamic friction plate, a static friction plate, a lip rubber sealing ring, second hydraulic cylinders, guide rails, pressure blocks, positioning plates, a first guide rail and a second guide rail, wherein that the first support and the second support are mounted on the machine tool base by bolts, the first power shaft is mounted inside a bearing seat at the upper end of the first support, a group of bearings is mounted between the bearing seat and the first power shaft, a nut is mounted at the left end of each bearing, the nut is used to position the inner ring of the bearing, the first end cover is mounted on the left side of the bearing seat at the upper end of the first support by screws, the first sealing ring is mounted between the first end cover and the first power shaft, the second end cover is fixed to the right side of the bearing seat at the upper end of the first support by screws, the second sealing ring is mounted between the second end cover and the first power shaft, the first L-shaped plate is mounted on the first power shaft by screws, the dynamic friction plate is mounted on the first L-shaped plate, the static friction plate and the lip rubber sealing ring are mounted at the right end of the first support, the lip rubber sealing ring is connected with an oil passage inside the first support, and the rotary joint is mounted at the left end of the first power shaft;

• the first decelerator is mounted inside the support seat, and the support seat is at the upper end of the second support, the first servo motor is mounted at the right end of the first decelerator, the fourth end cover is mounted at the right end of the support seat by screws, the third end cover is mounted at the left end of the support seat, the second power shaft is mounted at the output end of the first decelerator, and the second L-shaped plate is mounted on the second power shaft by screws;
• the base is mounted on the first L-shaped plate and the second L-shaped plate by screws, the first hydraulic cylinder is mounted on the base via the positioning column and screws, the power chuck is mounted on the first hydraulic cylinder, a group of clamping jaws is mounted on the power chuck, the second support plate is mounted on the base by screws, the linear single-axis robot penetrates through the base and is mounted on the second support plate, the output end of the second decelerator is mounted on the output shaft of the linear single-axis robot via the connecting plate and the coupling, the output end of the second servo motor is mounted on the input end of the second decelerator, the first support plate is simultaneously mounted on a slider of the linear single-axis robot and the movable plate, the two groups of airtight mechanisms are mounted on the movable plate, the four positioning plates are mounted on the movable plate, the four guide rails are mounted and fixed on the movable plate, the four groups of second hydraulic cylinder are mounted on the four guide rails, and the pressure blocks are mounted at the output ends of the second hydraulic cylinder;
• the first L-shaped plate is provided with a plurality of oil passages, the oil passages pass through the first power shaft and are connected with a hydraulic source via the rotary joint, an oil passage is processed at the upper end of the first support, and the first hydraulic cylinder and the second hydraulic cylinder are connected to the oil passages on the first L-shaped plate via joints and oil pipes.