Bicycle frame lifter

The utility model discloses a bicycle frame lifter which comprises a lifting frame body, the lifting frame body is fixedly connected with a seat disc through a rotary fixing device, three clamping bases are fixedly connected to the trisection position of the side surface of the seat disc in a T shape, and the movable ends of the clamping bases are fixedly connected with a containing table. Compared with an existing frame lifter, the frame lifter has the advantage of being convenient for operators to operate. When the frame is machined, the operation time of corresponding steps of frame machining can be shortened, the device can adjust the frame, it can be guaranteed that an operator carries out machining operation on any position of the frame, the stability performance is greatly improvedcompared with that of an existing device, and the effect of protecting the frame is achieved. 本实用新型公开了一种自行车车架升降机，包括升降架本体，所述升降架本体通过旋转固定装置固定连接有座盘，所述座盘侧表面三等分处且呈T形固定连接有三个卡座，卡座的活动端固定连接有放置台。本实用新型较现有的车架升降机具有方便操作人员操作的特点，在加工车架时，能够减少车架