In order to solve the problem of low utilization rate of the palletizing robot and troublesome replacement of the griper, etc.,a multifunctional flexible automatic switching robot griper is designed, including rack, clamping device, suction device and driving device.The griper had both a suction function and a gripping function. The robot could drive the fixture to perform three-dimensional motion and rotation. Combined with machine vision recognition, the workpiece could be accessed in different ways within a certain range to realize simultaneous service of one robot. One robot couldserve two different types of workpieces or two production lines at the same time, greatly improving the utilization rate of the robot. The fixture had been applied to the wall-hung boiler production line. The number of palletized workers had been reduced from 10 to 1 person. The labor intensity of the workers has been greatly reduced. The input cost is recovered in about 18 months, and the effect is very good.