Tool changer and tool change system including the same

1. A tool change system comprising:

a seating portion configured to have a tool seated thereon;

a tool changer disposed on a manipulator to separate the tool from the seating portion; and

a pressing portion disposed on an upper side of the seating portion to release the tool from the tool changer,

wherein the tool changer comprises:

a main body disposed on the manipulator; and

a gripper connected to the main body and comprising a hook to be locked into a locking recess formed on the tool and a lever pressed by the pressing portion.

2. The tool change system of claim 1 , wherein the tool changer further comprises a spring configured to connect the main body and the lever, and to provide an elastic force to allow the gripper to rotate in a direction of making the hook locked into the locking recess.

3. The tool change system of claim 1 , wherein a plurality of the grippers are provided to be spaced apart from one another in a circumferential direction, and

wherein a plurality of the pressing portions are provided to be spaced apart from one another in the circumferential direction.

4. The toot change system of claim 1 , wherein the tool changer further comprises a lower spring disposed on a bottom surface of the main body and compressed between the main body and the tool.

5. The tool change system of claim 1 , wherein the tool comprises:

a tool main body; and

an adaptor fastened to an upper side of the tool main body and having the locking recess formed on an outer circumference thereof.

6. The tool change system of claim 5 , wherein the tool further comprises a conducting plate disposed on a top surface of the adaptor, and

wherein the tool changer further comprises one pair of spring terminals disposed on a bottom surface of the main body and configured to apply a current when coming into contact with the conducting plate.

7. The tool change system of claim 5 , wherein the tool changer further comprises a switch disposed on a bottom surface of the main body and configured to apply a current when being pressed upward by the adaptor.

8. The tool change system of claim 5 , wherein the seating portion has an opening formed therein to allow the tool main body to pass therethrough.

9. The tool change system of claim 8 , further comprising a column portion protruding upward from the seating portion to be connected with the pressing portion.

10. The tool change system of claim 9 , wherein the column portion comprises a guide surface which is inclined inward in a downward direction.

11. The tool change system of claim 8 , wherein a guide protrusion is formed on any one of a bottom surface of the adaptor and a top surface of the seating portion, and a guide recess is formed on the other one to have the guide protrusion inserted thereinto.

12. The tool change system of claim 8 , wherein a magnet is provided on any one of a bottom surface of the adaptor and a top surface of the seating portion, and a magnetic substance or a sub magnet is provided on the other one to be attached to the magnet.

13. The tool change system of claim 1 , further comprising a sub pressing portion disposed on a lower side of the pressing portion to press the lever upwardly,

wherein the pressing portion is configured to press the lever downwardly.

14. The tool change system of claim 13 , wherein a roller is provided on at least one of the pressing portion or the sub pressing portion to come into contact with the lever.