The utility model discloses a sliding door checking fixture which comprises a roller shaft
assembly, a door body clamping mechanism, a clamping and clamping mechanism and an adjusting auxiliary mechanism, the door body clamping mechanism comprises a
hydraulic cylinder, a moving plate, a moving clamping rod, an adjusting sleeve and an adjusting clamping rod, and the clamping and clamping mechanism comprises a clamping
pipe, a clamping rod, a threaded sleeve, rotating teeth, a pushing rod, a
moving frame and a toothed plate. Movement of the moving plate and the clamping rod is controlled through the
hydraulic cylinder, the clamping force can be accurately adjusted, stable clamping of the sliding door is ensured, adjustment of the clamping mechanism is more flexible through the design of the adjusting sleeve and the adjusting clamping rod, the clamping mechanism can adapt to door bodies of different sizes, firm fixation of the door bodies in the clamping process is ensured through the design of the clamping
pipe and the clamping rod, and the clamping effect is good. And the threaded
connection design of the pushing rod and the threaded sleeve is matched with the meshing of the toothed plate and the rotating teeth, so that the force transmission in the clamping process is stable and reliable.