Method for measuring internal grinding temperature

The invention discloses a method for measuring internal grinding temperature. The method comprises the following steps that (1) a workpiece is punched by adopting a micro electric spark machining technology; (2) three thermocouples and a mica sheet are bonded flush through epoxy resin adhesive to form thermocouple junctions, and the thermocouple junctions are placed in through holes; (3) the thermocouple junctions are connected to a temperature acquisition module through a shielding signal wire, and the temperature acquisition module is fixed on a reverse claw of a short-cone three-claw self-centering chuck; and (4) the acquired temperature signal is transmitted to a terminal through a wireless thermocouple receiver, and the acquired data are analyzed. The method has the advantages that internal grinding temperatures of different depths can be measured, the structure is simple, and the temperature measurement is accurate. 本发明公开了一种内圆磨削温度测量方法，包括以下步骤：(1)采用微细电火花加工技术对工件打孔；(2)通过环氧树脂粘结剂将三个热电偶和云母片平齐粘接形成热电偶接点，并放入通孔内；(