Thickness measuring device

A thickness measuring device, comprising:

• a base comprising a base main body and a sensor, wherein the sensor is disposed on a surface of the base main body;
• a first moving component capable of moving along a first direction and comprising a contacting end, wherein the contacting end is configured to contact a detected object;
• a second moving component capable of moving along a second direction and comprising a sensing element, wherein the sensing element is spatially corresponding to the sensor;
• a frame connected to the base and comprising a frame main body, a first guiding groove and a second guiding groove, wherein the first guiding groove and the second guiding groove are formed on the frame main body, the first moving component is at least partially accommodated in the first guiding groove and is capable of moving in the first guiding groove, and the second moving component is at least partially accommodated in the second guiding groove and is capable of moving in the second guiding groove;
• and
• a linking component comprising a rotating element, a first connection portion and a second connection portion, wherein the first connection portion is disposed on a surface of the rotating element and is connected to the first moving component, and the second connection portion is disposed on the surface of the rotating element and is connected to the second moving component.