Groove engraving device and groove engraving method

A groove engraving device, comprising:

• a processing chamber for containing a piece to be processed,
• a cutter for groove engraving on the piece to be processed,
• a clamping mechanism for clamping the piece to be processed,
• a driving mechanism for driving the clamping mechanism to rotate, and
• a temperature controlling device for controlling a temperature inside the processing chamber to be within a preset temperature range, wherein the temperature controlling device comprises:
• a temperature sensor for detecting the temperature inside the processing chamber,
• a refrigerating mechanism for regulating the temperature inside the processing chamber, and
• a controller for controlling the refrigerating mechanism to operate;
• wherein the temperature sensor, the refrigerating mechanism and the controller are disposed inside the processing chamber, and the temperature sensor and the refrigerating mechanism are electrically connected to the controller;
• wherein the clamping mechanism and the cutter are disposed inside the processing chamber, and the clamping mechanism is rotatable with respect to the processing chamber;
• and
• the temperature controlling device is disposed inside the processing chamber.