Equipment for improving dimensional stability of die casting

The utility model discloses a device for improving the dimensional stability of die castings, which comprises a shell, the inner side of the shell is slidably connected with a lifting plate, the upper end of the shell is fixedly provided with a hydraulic oil cylinder, the telescopic end of the hydraulic oil cylinder is fixedly connected with the upper end of the lifting plate, the lower end of the lifting plate is fixedly provided with a first sliding assembly, and the lower end of the first sliding assembly is fixedly provided with a second sliding assembly. A first sliding assembly is fixedly installed at the upper end of the shell, a second sliding assembly is fixedly installed at the lower end of the first sliding assembly, a grinding machine is fixedly installed at the lower end of the second sliding assembly, a workbench is fixedly installed on the inner side of the shell, two clamping plates are slidably connected to the upper end of the workbench, and a control mechanism used for controlling the two c