Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Bionic flexible mechanical arm operated facing to narrow limit space

A flexible robotic arm and space-limited technology, applied in the field of bionic robots, can solve problems such as difficulty in widespread use and inability to work, and achieve the effects of good mechanical expandability, compact structure, and high use value

Pending Publication Date: 2018-06-29
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is that the flexible mechanical arm mentioned in the background technology has many following problems, it is currently difficult to be widely used in engineering, and it is even more difficult to work in a narrow space.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Bionic flexible mechanical arm operated facing to narrow limit space
  • Bionic flexible mechanical arm operated facing to narrow limit space
  • Bionic flexible mechanical arm operated facing to narrow limit space

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach

[0055] The elastic body flexible arms in the prior art are connected by elastic bodies in the middle, and spherical grooves are used for relative rotation between the joints. A disadvantage of this structure is that the unit joint angle is only 10 degrees, and the diameter is only 20mm. Combined with the performance of polyurethane materials, the load capacity of the too small diameter is very limited, and the polymer is easy to age in the aerospace environment. The whole cannot realize the bending of discontinuous curvature.

[0056] Aiming at the shortcomings of the elastic body flexible arm in the prior art, the bionic flexible manipulator of this embodiment is proposed. The structural parameters of this new bionic flexible manipulator are:

[0057] The diameter of the new bionic flexible robotic arm is 40mm, the maximum extension length is 193.40mm, the minimum compression length is 142.10mm, and the maximum bending angle in one direction is 92.7°. The driving motor is a ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a bionic flexible mechanical arm operated facing to a narrow limit space, and aims to solve the technical problems that a flexible mechanical arm mentioned in a background technology has multiple problems so as to be difficult to widely use in engineering and incapable of operating in a narrow space. The invention adopts the technical scheme that the bionic flexible mechanical arm operated facing to the narrow limit space comprises at least one sub joint, wherein each two adjacent sub joints are connected; each sub joint comprises an upper operation surface and a base;and three universal connecting units are arranged between each upper operation surface and each base. The bionic flexible mechanical arm operated facing to the narrow limit space is characterized by using a three-rod-shaft parallel platform as the sub joint of the flexible mechanism arm, so that a single sub joint has more freedom degrees; and a single joint is supported by three threaded rods, sothat the rigidity and the carrying capacity of the flexible mechanical arm are ensured.

Description

technical field [0001] The invention relates to the technical field of bionic robots, in particular to a bionic flexible robot arm for operations in narrow and restricted spaces. Background technique [0002] In the field of robotics, robotic arms are widely used and the technology is relatively mature. However, traditional robotic arms have many disadvantages as follows: [0003] 1) The traditional robotic arm is usually based on three or four linkages, with low degrees of freedom and poor flexibility, and the operation in a narrow and restricted area is limited. [0004] 2) Usually, in order to increase the degree of freedom of the traditional manipulator, more links are connected in series to achieve the goal. But at the same time, the load torque of the rotary joint of the base increases sharply, which greatly damages the drive motor and affects the service life. [0005] 3) Based on item 1), the operating space of the traditional manipulator is relatively small, and ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B25J9/06B25J17/02
CPCB25J9/06B25J17/0283
Inventor 戴振东余仕泽王炳成王周义陈传奇
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com