Laser displacement detection equipment for flatness of upper and lower surfaces of server

The invention relates to the field of flatness detection, in particular to laser displacement detection equipment for flatness of upper and lower surfaces of a server. The device comprises a rack, a server supporting and positioning mechanism, a server lower surface movable laser displacement sensor detection mechanism, a server upper surface movable laser displacement sensor detection mechanism and a code scanning mechanism, the server lower surface movable laser displacement sensor detection mechanism comprises a laser displacement sensor assembly a and an X-axis servo driving mechanism a; the server upper surface movable laser displacement sensor detection mechanism comprises a laser displacement sensor assembly b, a Z-axis servo driving mechanism used for driving the laser displacement sensor assembly b to ascend and descend and an X-axis servo driving mechanism b used for driving the Z-axis servo driving mechanism to move in the X-axis direction. According to the invention, the flatness tolerance of the