The invention relates to a tempered glass testing and check device, in particular to a chromium alloy impact combination polished ring gear rotary table wheel backup clamp glass detection device. According to the improvement, a wheel sliding way corner backup clamp assembly is fixed to the upper plane of a testing rotary table, a rotary table rotating shaft on one side is fixedly provided with a transmission gear, the transmission gear is matched with a manual gear, the manual gear is rotationally fixed to a manual axle, the outer end of the manual axle is provided with a clamping spring for the axle, the clamping spring for the axle blocks the outer side face of the manual axle, the outer side face of the manual axle is provided with a hand wheel step circle, the hand wheel step circle is fixedly connected with a hand wheel transverse rod, the outer end of the hand wheel transverse rod is provided with a hand wheel rocking handle, a camera square rod is fixed between a camera rear sliding block and a camera front sliding block, a screw rod camera unit is fixed to a sliding block guide rail plate block, a circular stand column in the rear row is in rotary sliding fit with a polished ring component, a circular stand column in the front row is in rotary sliding fit with a rotary impact assembly, and a transverse universal joint and an inclined handle universal joint are connected through a linkage connecting rod.