| 摘要 |
An industrial robot may include a main body part and an arm part including a first arm, a second arm and a hand arm. The main body part is provided with a first turnable shaft for performing an expansion-contraction operation of the arm part, a second turnable shaft which is disposed within the first turnable shaft for changing an expansion-contraction direction of the hand arm together with the first arm, a first sensor mechanism including a first sensor for detecting a home position of the second turnable shaft, a second sensor mechanism provided in the second turnable shaft and which includes a second sensor for detecting a relative home position between the second turnable shaft and the first turnable shaft, and a rotary joint which is connected with the second turnable shaft and is electrically connected with the second sensor.
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