A built-in type of vision based inspection tool for autonomous setting of an initial origin provided in a chuck used in an automatic tool changer (ATC) of a machine tool, comprising: a docking part provided at one side of the chuck and mounted on the machine tool; an image part provided at one side of the docking part and obtaining an image of a workpiece seated on the machine tool; and an embedded part provided between the docking part and the image part and performing auto-focusing through the image and machining origin setting depending on the auto-focusing, and wherein the embedded part includes: a housing coupled to one side of the docking part and having a hollow inner portion; and an embedded module buried in the hollow inner portion of the housing, and including: a digital signal processor (DSP) board ; a wireless communication part disposed at one side of the DSP board so as to be spaced apart from the DSP board ; and power supply parts disposed between the DSP board and the wireless communication part , and wherein the DSP board and the wireless communication part are formed in a disk shape in which they have a predetermined diameter based on an axial direction of the chuck, and a plurality of power supply parts are installed on one surface of the DSP board and are radially disposed based on the axial direction of the chuck. a docking part provided at one side of the chuck and mounted on the machine tool; an image part provided at one side of the docking part and obtaining an image of a workpiece seated on the machine tool; and an embedded part provided between the docking part and the image part and performing auto-focusing through the image and machining origin setting depending on the auto-focusing, and wherein the embedded part includes: a housing coupled to one side of the docking part and having a hollow inner portion; and an embedded module buried in the hollow inner portion of the housing, and including: a digital signal processor (DSP) board ; a wireless communication part disposed at one side of the DSP board so as to be spaced apart from the DSP board ; and power supply parts disposed between the DSP board and the wireless communication part , and wherein the DSP board and the wireless communication part are formed in a disk shape in which they have a predetermined diameter based on an axial direction of the chuck, and a plurality of power supply parts are installed on one surface of the DSP board and are radially disposed based on the axial direction of the chuck. a housing coupled to one side of the docking part and having a hollow inner portion; and an embedded module buried in the hollow inner portion of the housing, and including: a digital signal processor (DSP) board ; a wireless communication part disposed at one side of the DSP board so as to be spaced apart from the DSP board ; and power supply parts disposed between the DSP board and the wireless communication part , and wherein the DSP board and the wireless communication part are formed in a disk shape in which they have a predetermined diameter based on an axial direction of the chuck, and a plurality of power supply parts are installed on one surface of the DSP board and are radially disposed based on the axial direction of the chuck. <EOS>