US 2018/0319012 A1Published application

Arm using a two-joint module

AssigneeEngineering Services Inc.

InventorsXiaojia He, Ziren LU, Andrew A. GOLDENBERG

Life of this patent

Estimating the term…

Loading patent…

Abstract

A robotic arm includes at least two two-joint modules and at least a first link. Each two-joint module includes a housing, a pair of hollow rotary actuator assemblies and a pair of motor drives. Each actuator assembly has an axis and a hollow shaft and the axes are arranged at an angle to each other. The pair of hollow rotary actuator assemblies are arranged such that a back end of the actuator assemblies is inside the housing and a front end of the actuator assemblies extends outwardly of the housing, and attached to the housing such that cables can be fed from the outside of one of the actuator assemblies to the inside thereof and to the inside of the other actuator assemblies to the outside thereof. The pair of motor drives are operably attached to the actuator assemblies and the motor drives are outside the housing.

Claims17

Dependent claims

A robotic arm comprising:

at least two two-joint modules wherein each two-joint module includes:
a housing;
a pair of hollow rotary actuator assemblies each having an axis and a hollow shaft and the axes being arranged at an angle to each other and the pair of hollow rotary actuator assemblies being arranged such that a back end of each of the hollow rotary actuator assemblies is inside the housing and a front end of each of the hollow rotary actuator assemblies extends outwardly of the housing, and attached to the housing body such that the cables can be fed from the outside of one of the pair of hollow rotary actuator assemblies to the inside thereof and to the inside of the other of the pair of hollow rotary actuator assemblies to the outside thereof;
and
a pair of motor drives operably attached to the pair of hollow rotary actuator assemblies and the motor drives being outside the housing;
and
at least a first link.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/035,182Filed 13 Jul 2018
Priority: 27 Apr 2017
Published: 8 Nov 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

B25J 9/126
Electric: rotary actuators
B25J 19/0029
Means for supplying energy to the end effector: arranged within the different robot elements
B25J 19/0075
Accessories fitted to manipulators, e.g. for monitoring, for viewing; Safety devices combined with or specially adapted for use in connection…
B25J
Manipulators