Robot arm assembly
First Claim
Patent Images
1. A robot arm assembly comprising:
- a base unit;
a shoulder assembly rotatably disposed on the base unit;
a lower robot arm pivotably attached to the shoulder assembly;
an upper robot arm pivotably attached to the lower robot arm;
a main shaft rotatably disposed in the base unit and connected to the shoulder assembly;
the base unit including a first motor which rotates the main shaft connected to the shoulder assembly to rotate the shoulder assembly;
a second shaft rotatably disposed in the shoulder assembly and extending transversely through and rotatable with respect to the main shaft and connected to the lower robot arm;
the base unit further including a second motor which rotates the second shaft in the shoulder assembly to pivot the lower robot arm with respect to the shoulder assembly.
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Abstract
A robot arm assembly a base unit with a shoulder assembly rotatably disposed on the base unit. A lower robot arm is pivotably attached to the shoulder assembly. An upper robot arm is pivotably attached to the lower robot arm. The base unit includes a first motor which rotates a main shaft fixed to the shoulder assembly to rotate the shoulder. A second motor in the base unit rotates a second shaft in the shoulder assembly extending through the main shaft to pivot the lower robot arm with respect to the shoulder.
143 Citations
24 Claims
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1. A robot arm assembly comprising:
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a base unit; a shoulder assembly rotatably disposed on the base unit; a lower robot arm pivotably attached to the shoulder assembly; an upper robot arm pivotably attached to the lower robot arm; a main shaft rotatably disposed in the base unit and connected to the shoulder assembly; the base unit including a first motor which rotates the main shaft connected to the shoulder assembly to rotate the shoulder assembly; a second shaft rotatably disposed in the shoulder assembly and extending transversely through and rotatable with respect to the main shaft and connected to the lower robot arm; the base unit further including a second motor which rotates the second shaft in the shoulder assembly to pivot the lower robot arm with respect to the shoulder assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A robot arm assembly comprising:
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a base unit; a shoulder assembly rotatably disposed on the base unit; a lower robot arm pivotably attached to the shoulder assembly; a main vertical shaft rotatably disposed in the base unit and connected to the shoulder assembly; the base unit including a first motor which rotates the main vertical shaft connected to the shoulder assembly to rotate the shoulder assembly; and a second horizontal shaft rotatably disposed in the shoulder assembly and extending transversely through and rotatable with respect to the main shaft and connected to the lower robot arm; the base unit further including a second motor which rotates the second horizontal shaft in the shoulder assembly to pivot the lower robot arm with respect to the shoulder assembly. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A robot arm assembly comprising:
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a base unit; a shoulder assembly rotatably disposed on the base unit; a lower robot arm pivotably attached to the shoulder assembly; an upper robot arm pivotably attached to the lower robot arm and driven by a motor in the lower robot arm, the upper robot arm including a telescoping section and a motor driven rotatable wrist; a main shaft rotatably disposed in the base unit and connected to the shoulder assembly; a second shaft rotatably disposed in the shoulder assembly and extending transversely through and rotatable with respect to the main shaft and connected to the lower robot arm; the base unit including; a first motor which rotates the main shaft connected to the shoulder assembly to rotate the shoulder, a second motor which rotates the second shaft in the shoulder assembly to pivot the lower robot arm with respect to the shoulder assembly, a gear fixed to the main shaft driven by the first motor through a gear reducer, a brake with a release associated with the first motor, and a brake with a release associated with the second motor; and the shoulder assembly including a gear fixed to the second shaft driven by the second motor through a gear train and a gear reducer.
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Specification