Automatic nut internal thread quality tester

An automatic nut internal thread quality tester, comprising:

• a blanking module configured to accommodate at least one to-be-tested nut;
• a clamping module disposed on a side of the blanking module and configured to hold the to-be-tested nut;
• a push rod module disposed on another side of the blanking module and configured to push the to-be-tested nut into the clamping module;
• a thread gauge driving module disposed opposite the clamping module, wherein the thread gauge driving module comprises a thread gauge, a motor, and a torque sensor, the thread gauge is toward the clamping module, the motor drives the thread gauge to rotate in a first direction, and the torque sensor measures a torque experienced by the thread gauge;
• and
• an axial pushing module configured to drive the clamping module, wherein the clamping module is driven to be moved toward the thread gauge in order to make the thread gauge to detect an internal thread of the to-be-tested nut;
• wherein in response to the torque measured by the torque sensor being greater than a threshold value, the motor is paused and then the motor drives the thread gauge to rotate in a second direction, and the axial pushing module drives the clamping module away from the thread gauge.