2results about How to "Consistent processing" patented technology

The utility model relates to the technical field of resonator wafer processing accessories, in particular to a wafer positioning plate with information codes. According to the utility model, the information code is arranged on the ceramic chip, the ceramic chip is fixedly connected in the positioning groove, and the upper surface of the ceramic chip is lower than the notch of the positioning groove, so that the information code is effectively prevented from being directly exposed, the damage risk caused by external friction, corrosion and other factors is reduced, and the service life of the information code is obviously prolonged; and the long-term readability of the information is ensured.

This invention provides a float valve grinding device, comprising a machine base, a moving device, a swing arm device, a placement device, and a grinding machine. The moving device is mounted on the machine base. The swing arm device is mounted on the moving device. The placement device is mounted on the machine base and is used to place the float and drive the float to rotate. The moving device is used to move the swing arm device away from and towards the placement device. The grinding machine is mounted on the swing arm device, which is used to control the grinding angle of the grinding machine. This invention solves the problem that traditional equipment cannot cover the entire outer surface of the float with the grinding head.