The invention discloses a precision sliding table for multi-workpiece parallel vision measurement. The precision sliding table comprises a
portal frame vision acquisition mechanism 100, a carrying plate 200, a driving radial lead screw and nut mechanism 300, a fixing plate 400, a driving axial lead screw and nut mechanism 500, a driven axial sliding block mechanism 600 and a driven radial slidingblock mechanism 700; a
portal frame and an acquisition camera are fixedly connected so as to form the
portal frame visual acquisition mechanism 100; the loading plate 200 clamps a workpiece to finishprecise movement in an axial direction, a radial direction and a circumferential direction through the
cooperative work of the driving axial lead screw and nut mechanism 500, the driving radial lead screw and nut mechanism 300, the driven axial sliding block mechanism 600 and the driven radial sliding block mechanism 700, so that the high-precision measurement and reconstruction of the workpiece are achieved. Driving motors on the lead screw and nut mechanisms achieve
automatic control precision rotation through communication between an upper computer and a lower computer; hand wheels are arranged, so that manual adjustment is facilitated, and therefore, the adaptability of the precision sliding table to a
working environment is good; the fixing plate 400 is provided with a proximity switch sensor and a limiting switch and used for feeding back the operation position of the workpiece in real time and achieving the self-protection of the device during work faults; and the carrying plate200 of the precision sliding table can clamp a plurality of workpieces simultaneously. The precision sliding table meets the task requirements of various visual acquisition
modes including monocularvision measurement,
binocular vision measurement and
structured light measurement; and the precision sliding table has the advantages of high adaptability, high
automation degree, and high practicability in the field of
machine vision measurement.