Robot and robot system

1. A robot comprising:

a robot main body that includes a base and a robot arm that is rotatable with respect to the base;

a drive unit that is disposed inside the robot arm and drives the robot arm; and

a wiring that is disposed inside the robot arm and electrically connected to the drive unit,

wherein the robot arm includes a casing including a main body and a cover detachably connected to the main body,

the drive unit includes a first pulley, a second pulley having a hollow hole, a belt connecting the first pulley and the second pulley, and a motor that generates a driving force for driving the robot arm and rotates the first pulley or the second pulley by the driving force,

the wiring includes an insertion area inserted through the hollow hole of the second pulley and an intersection area intersecting with the belt as seen in a direction along a rotation axis of the second pulley,

the intersection area is positioned between the belt and the main body, and

the main body is provided with a first fixture that fixes the wiring and is disposed inside the belt and a second fixture that fixes the wiring and is disposed outside the belt, as seen in the direction along a rotation axis of the second pulley.

2. The robot according to claim 1 ,

wherein the drive unit includes a reduction gear having a through-hole through which the wiring is inserted,

the first pulley is attached to the motor,

the second pulley is attached to the reduction gear so that the hollow hole and the through-hole communicate with each other, and

the motor and the reduction gear are positioned on a side of the main body with respect to the belt.

3. The robot according to claim 1 ,

wherein the robot arm includes an A arm including the casing, a B arm connected to the A arm and rotating with respect to the A arm, a drive unit for the A arm which serves as the drive unit and drives the A arm, and a drive unit for the B arm which serves as the drive unit and drives the B arm, and

the drive unit for the A arm and the drive unit for the B arm are provided on the A arm.

4. The robot according to claim 1 , further comprising:

a control board and a power supply board that supplies electric power to the control board, which are provided in the robot main body.

5. A robot comprising:

a robot main body that includes a base and a robot arm that is rotatable with respect to the base;

a drive unit that is disposed inside the robot arm and drives the robot arm;

a wiring that is disposed inside the robot arm and electrically connected to the drive unit; and

a drive board that is disposed inside the robot arm and drives the drive unit,

wherein the robot arm includes a casing including a main body and a cover detachably connected to the main body,

the drive unit includes a first pulley, a second pulley having a hollow hole, a belt connecting the first pulley and the second pulley, and a motor that generates a driving force for driving the robot arm and rotates the first pulley or the second pulley by the driving force,

the wiring includes an insertion area inserted through the hollow hole of the second pulley and an intersection area intersecting with the belt as seen in a direction along a rotation axis of the second pulley,

the intersection area is positioned between the belt and the main body,

the drive unit is attached to the main body, and

the drive board is attached to the cover.

6. A robot system, comprising:

a robot that includes

a robot main body that includes a base and a robot arm rotating with respect to the base,

a drive unit that is disposed inside the robot arm and drives the robot arm, and

a wiring that is disposed inside the robot arm and electrically connected to the drive unit; and

a control device that is provided separately from the robot and includes a control board and a power supply board for supplying electric power to the control board,

wherein the robot arm includes a casing including a main body and a cover detachably connected to the main body,

the drive unit includes a first pulley, a second pulley having a hollow hole, a belt connecting the first pulley and the second pulley, and a motor that generates a driving force for driving the robot arm and rotates the first pulley or the second pulley by the driving force,

the wiring includes an insertion area inserted through the hollow hole of the second pulley and an intersection fixture intersecting with the belt as seen in a direction along a rotation axis of the second pulley,

the intersection area is positioned between the belt and the main body, and

the main body is provided with a first fixture which serves as the fixture and is disposed inside the belt and a second fixture which serves as the fixture and is disposed outside the belt, as seen in the direction along a rotation axis of the second pulley.

7. The robot system according to claim 6 ,

wherein the drive unit includes a reduction gear having a through-hole through which the wiring is inserted,

the first pulley is attached to the motor,

the second pulley is attached to the reduction gear so that the hollow hole and the through-hole communicate with each other, and

the motor and the reduction gear are positioned on a side of the main body with respect to the belt.

8. The robot system according to claim 6 ,

wherein the robot arm includes an A arm including the casing, a B arm connected to the A arm and rotating with respect to the A arm, a drive unit for the A arm which serves as the drive unit and drives the A arm, and a drive unit for the B arm which serves as the drive unit and drives the B arm, and

the drive unit for the A arm and the drive unit for the B arm are provided on the A arm.

9. The robot system according to claim 6 , further comprising:

a drive board that is disposed inside the robot arm and drives the drive unit.

10. The robot system according to claim 9 ,

wherein the drive unit is attached to the main body, and

the drive board is attached to the cover.