33results about How to "High self-weight ratio" patented technology

The invention discloses a hollow structure double-arm robot modular joint used in the field of industrial robots. The mechanical arm is composed of seven similar modular joints. The joint includes: an input device and an output device. The input device includes: hollow motor rotor, rotor axial positioning ring, second motor bearing, hollow brake rotor, O-ring, motor stator mounting flange, main drive shaft, motor rotor, first motor bearing, bearing Gland and harmonic reducer wave generator; the output device includes: joint output flange, output bearing, mounting flange, absolute encoder rotor, sealed bearing and harmonic reducer steel wheel; the input device and The output device is connected through a mounting flange. The advantage of the invention is that it can solve those robot products with many varieties, small batches and complex structures, and increase the load-to-weight ratio of the joints on the basis of satisfying the above conditions, and improve the rotation accuracy of the joints.

A two-freedom parallel mechanism with passive constraint branches is composed of movable platform, static platform with slots and parallel to movable platform, the two groups of length-fixed active branches and two telescopic passive constraint branches for linking both platforms, and the leading screws with serve motor and slide block and arranged in said slots on static platform. Said active branches and passive constraint branches are linked with both platforms respectively via pin and slide block or ball socket. Its advantages are high lateral load bearing power and no couple between active and passive branches.

Provided are a single-motor driven double-thread under-actuated multi-fingered robot end effector and method. The single-motor driven double-thread under-actuated multi-fingered robot end effector comprises at least two robot fingers, a finger grabbing range adjusting device and a finger grabbing and opening device; and the finger grabbing range adjusting device controls the robot fingers to transversely move to adjust the grabbing range of the robot fingers, and the finger grabbing and opening device controls the robot fingers to longitudinally move so that the robot fingers can grab tightly or be opened.

The invention discloses a mechanical locking device for connecting and positioning, and belongs to a locking and positioning device. The mechanical locking device aims to solve the problem that when two mechanisms or equipment are connected, the structure is complex due to the fact that a plurality of execution mechanisms and detection elements need to be adopted. The mechanical locking device comprises a motor, nuts, a screw sleeve, a guide positioning cylinder, torsion springs, a transmission device, a base and a plurality of spring bolts; and the motor and the guide positioning cylinder arecorrespondingly fixed to the base, the screw sleeve is arranged on the outer side of the guide positioning cylinder in a sliding and sleeving mode, the nuts are rotationally arranged on the base through the transmission device and are in threaded fit with the screw sleeve, the motor drives the nuts to rotate through the transmission device, each spring bolt is hinged to the screw sleeve through the corresponding torsion spring, the plurality of spring bolts are uniformly distributed on the circumference of the screw sleeve, and the plurality of spring bolts can extend into the interior of theguide positioning cylinder. The mechanical locking device is suitable for positioning and transferring of trays and the like of the automatic production line.

The invention discloses a modular rope-driven decoupling mechanical arm joint and a working method thereof and relates to the field of robots. According to the decoupling mechanism, two different types of modular rope-driven joints are designed, so the problem of motion coupling among all joints of a rope-driven mechanical arm provided with a plurality of joints connected in series is solved. According to the demands of a target task, the rotation type of each joint is changed, and the quantity of the joints of the mechanical aim is increased or reduced, so that assembly of the mechanical arm of a plurality of types of construction can be realized; the application mode and the application range are wide, and the implementation cost is low. A mechanical arm driving unit is arranged at a base, and a rope is used for remote driving, so the rotational inertia of each joint is reduced and the response characteristics of driving are improved. In addition, the interaction safety of the mechanical arm and the environment can be greatly improved due to the flexibility of the rope. The rope-driven modular joint disclosed by the invention is compact in structure, low in rotational inertia, quick in driving response, good in joint flexibility and good in interaction safety.

A hydraulic lightweight parallel mechanical arm belongs to the field of robot structure technology and is composed of a mobile platform connection component, a large arm mobile component, a mechanical large arm component and a hydraulic parallel mechanical small arm component. The large arm mobile component is installed on the mobile platform On the connection assembly, the mechanical boom assembly is installed on the boom moving assembly, and the hydraulic parallel mechanical small arm components are installed on the mechanical boom assembly. Compared with other existing methods, the advantages of the present invention are: using hydraulic components to assemble the small arm of the manipulator, which is lighter in structure, can realize stepless speed regulation during the movement of the manipulator, and has higher motion precision; adopts hydraulic parallel Combined assembly in a combined way to realize the six degrees of freedom of the robotic arm, compared with other existing robotic arms, it is lighter in weight and has a higher load-to-weight ratio; the assembled combined robotic arm can meet the requirements of various types of work, The flexible transformation of various terminal execution parts can be realized by using the replaceable execution terminal installation parts.

The invention discloses a reconfigurable rope-driven tandem decoupling mechanical arm joint and a working method thereof, and solves the kinematic coupling problem of joints of a multi-joint tandem rope-driven mechanical arm. The reconfigurable rope-driven tandem decoupling mechanical arm joint has the characteristics that based on a decoupling mechanism, modularized rope-driven joints of two different types are designed; the rotation types of the joints are changed and the number of mechanical arm joints is increased and decreased according to the requirement of a target task, so that the assembly of mechanical arms with various structures is achieved; the application manner is wide in application range, and the cost is low; a mechanical arm driving unit is positioned at a base, the rope remote driving is adopted, and the rotational inertia of the joints is reduced, so that the driving response characteristic is improved; besides, the flexibility of the ropes greatly improve the safety of interaction of the mechanical arm and the environment; and a rope-driven modularized joint is compact in structure, low in rotational inertia, quick in driving response, and good in flexibility and security interaction.

The invention relates to an ontract replaceable joint of a large space service robot, in particular to a robot joint, which aims to solve the problems of poor joint control accuracy, large joint mass caused by using planetary gear transmission, small load self-weight ratio for a robot, and poor integration caused by arranging a control circuit outside a joint of the traditional large space service robot. The output end of a transmission shaft for a motor is connected with a pinion in a transmission way; the pinion is engaged with a bull gear; the bull gear is connected with a hollow shaft through a key in a transmission way; the hollow shaft is integrated with a harmonic speed reducer; a cylindrical hollow shell is arranged inside the hollow shaft; the tail of the cylindrical hollow shellis connected with a back cap of the joint; the harmonic speed reducer is connected with the small diameter end of a torque transducer which is arranged inside the output shell of the joint and is sleeved outside the cylindrical hollow shell; and the large diameter end of the torque transducer is connected with the output shell of the joint in a dismountable way. The invention is used for large space service robots.

The invention discloses a light-weight mechanical arm and a robot having the same. The light-weight mechanical arm includes a base, a first arm body, a second arm body, a third arm body, a fourth arm body, and a fifth arm body , the sixth arm body, the end effector, the first modular joint, the second modular joint, the third modular joint, the fourth modular joint, the fifth modular joint, the sixth modular joint and the seventh modular joint Joints, the base, the second arm, the fourth arm, and the sixth arm all have hollow cavities, the first modular joint is located in the hollow cavity of the base, the second modular joint and the third modular joint are located In the body of the second arm, the fourth modular joint and the fifth modular joint are located in the fourth arm body, and the sixth modular joint and the seventh modular joint are located in the sixth arm body. The overall weight of the robot arm is reduced, and the load-to-weight ratio of the robot arm is improved. The modular joints are self-contained and can be directly disassembled and assembled as a whole.