Automobile shock absorber performance test bench

The technical scheme of the invention includes a bed, a protection and control system, a power and transmission system, an upper transmission and force measuring mechanism, a crank connecting rod andworkpiece clamping adjustment mechanism and a fixture; the protection and control system, the power and transmission system, and the upper transmission and force measuring mechanism are connected to the bed by bolts; the crank connecting rod and workpiece clamping adjustment mechanism is connected to a driving shaft of the power and transmission system through a bearing; and the fixture is connected to the crank connecting rod and workpiece clamping adjustment mechanism through a clamping positioning block. The function is to realize the approximate sinusoidal harmonic motion by using a servomotor to drive a crank connecting rod mechanism; a force measurement sensor and a displacement sensor measure the damping force of a damper and the displacement of a damper piston rod; an industrial personal computer calculate