Tool grinding machine

A tool grinding machine, comprising:

• a casing, provided for operating the tool grinding machine in a gripping manner, and formed with at least one air inlet and at least one first air outlet;
• a driving component, installed in the casing, and comprising a motor and an airflow generator that rotating synchronously with the motor, wherein the motor comprises a stator, a rotor, an output shaft assembled with the rotor, and a motor housing disposed around the stator and the rotor, and wherein the output shaft comprises a first end facing the casing and assembled with the airflow generator, and a second end opposite from the casing and assembled with a grinding member, and wherein the motor housing comprises at least one first opening generating a ventilation relationship with the at least one air inlet, and at least one second opening communicating with an interior of the motor and facing the airflow generator;
• and
• a diversion structure, disposed at one of two positions including inside the casing and on the motor housing, the diversion structure provided to enable the tool grinding machine to define a first airflow path which is composed of the at least one air inlet, the at least one first opening, the interior of the motor, the at least one second opening, the airflow generator and the at least one first air outlet in sequence.