Vacuum clamping device

The invention belongs to the technical field of metal cutting machining, and particularly relates to a vacuum clamping device. According to the present invention, no vacuum tube, vacuum pump or other electrical devices are needed, and a movable push-pull rod, a movable pressing piece, an elastic piece and a limiting assembly are matched with one another to achieve the tight adsorption of an adsorption piece and a part to be fixed. The invention provides the vacuum clamping device which can realize the quick clamping and dismounting of the parts and improve the clamping efficiency. According to the vacuum clamping device, the operation is safe and convenient, the clamping stability and reliability are high, a series of problems that a part is equipped with a pressing plate measurement intervention probe, a deformed part cannot be measured, the clamping time is long, and the like are solved, the clamping is simple and time-saving, a pressing plate for measurement and clamping is saved, and the correction and me