A combined piston coaxiality detection measuring tool

The utility model discloses a combined piston coaxiality detection measuring tool comprising a bottom plate, a lift table, a stand pillar, sliders, guide pillars, a cover plate, dial gauges, a piston limiting mechanism and a lift driving mechanism. The two ends of each guide pillar are fixed to the bottom plate and the cover plate. The lift table is in sliding connection with the guide pillars. The lift driving mechanism drives the lift table to slide up and down along the guide pillars. The stand pillar is fixed on the lift table. The sliders are in sliding connection with the stand pillar and screws are used for position fixation. The dial gauges are fixed on the sliders, measuring probes thereof penetrating through the sliders. Two groups of the sliders and the dial gauges are arranged. The piston limiting mechanism is arranged on the bottom plate. The combined piston coaxiality detection measuring tool is simple in structure, is light, is low in manufacture cost, is convenient for maintenance, is high in detection reliability and can effectively increase the piston coaxiality detection working efficiency.