Clamping tool for workpiece machining

The utility model discloses a clamping tool for workpiece machining, relates to the technical field of workpiece clamping, and aims to solve the problems that when batch workpieces are machined by an existing machining center, centering of each calibration meter is troublesome, time is wasted when a vice or a check block is used, and time and labor are wasted during workpiece clamping. A first clamping seat is arranged at the upper end of the tool bottom plate; the first clamping seat is arranged on one side of the tool bottom plate, the second clamping seat is arranged on one side of the first clamping seat, a third clamping seat is arranged on one side of the second clamping seat, a fourth clamping seat is arranged on one side of the third clamping seat, and the first clamping seat, the second clamping seat, the third clamping seat and the fourth clamping seat are located at the corners of the tool bottom plate correspondingly; and the second threaded rod is arranged at the plane corners of the first clampi