Drawing wire type serial mechanical arm

Abstract

The invention relates to a drawing wire type serial mechanical arm which has two degrees of freedom (DOF) at wrist joint, one DOF at elbow joint and two DOFs at shoulder joint. The whole structure of the mechanical arm comprises a seat driving box, a joint rod and a joint drive mechanism. The driving motor of each DOF is mounted on the seat driving box of the mechanical arm, the motive power of the motor is transferred to the mechanical arm by manipulating the drawing wire, thus overcoming the influence of motor weight mounted on the mechanical arm to the carrying capacity and movement flexibility of the mechanical arm; forward and backward movement of each DOF of the mechanical arm can be realized by the forward and backward rotation of each detached driving motors, so that the drawing wire can maintain in tense state in the movement process, thus solving the unidirection property that means drawing but not compressing in the driving process; in the invention, the size and position of the pulley wheels are artfully configured, the effectively overcoming the defects such as small driving range and easy interference between wires in the driving process of parallel wires.

Description

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AI Technical Summary

Benefits of technology

This patented technology allows for better performance and functionality than previous designs due to its unique design and compact construction. It uses an actuator (drive) placed inside or outside the robot's main body instead of just being connected directly to the driving unit. A pulling force from this external source helps move objects around without causing any resistance when they are located near them. Additionally, there may also include extra components like motors added between the two ends of the robot itself to make it easier to bend and compress materials. Overall, these technical improvements improve the overall functioning and efficiency of robots used today compared to older methods such as those described earlier.

Problems solved by technology

Technological Problem: Current methods for controllably moving robots use heavy duty actuator systems like hydraulic or electric cylinders, but these require extra equipment attached near their ends, making them bulky and expensive. To address this issue, there proposes an alternative approach called Power Delivery Parallel Mechanism (PDMP). Instead of adding more components to increase its strength without reducing its performance, PDPM uses tensile force instead of pulling forces to transfer power between two parts connected together. By doing so, the system becomes lighter while still being able to handle larger loads compared to previous designs. Additionally, PDLMS describes how the design allows for efficient operation even under severe environmental conditions where damage may occur due to collisions involving flying debris particles.

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