Space scalable type mechanical arm based on 4D printing and expanding and contracting method thereof

A robotic arm and space technology, applied in manipulators, program-controlled manipulators, claw arms, etc., can solve problems such as limiting the performance of printable shape memory polymers, and achieve the effect of promoting development and expanding application fields

Pending Publication Date: 2020-06-30
HARBIN INST OF TECH
11 Cites 2 Cited by

AI-Extracted Technical Summary

Problems solved by technology

The technical characteristics and defects of each printing technology largely limit the types of shape memory polymers that can be printed and the p...
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

Abstract

The invention provides a space scalable type mechanical arm based on 4D printing and an expanding and contracting method thereof, belongs to the fields of 4D printing technologies and shape memory polymer, and particularly relates to a space scalable type mechanical arm based on 4D printing and an expanding and contracting method thereof. The problem that application of the 4D printing technologyon the aspect of printing a three-dimensional space expandable structure is poor is solved. The space scalable type mechanical arm comprises a hollow cylindrical structure, a first pressing plate anda second pressing plate and is mainly applied to astronautic three-dimensional intelligent space expanding structures.

Application Domain

Technology Topic

Image

  • Space scalable type mechanical arm based on 4D printing and expanding and contracting method thereof
  • Space scalable type mechanical arm based on 4D printing and expanding and contracting method thereof
  • Space scalable type mechanical arm based on 4D printing and expanding and contracting method thereof

Examples

  • Experimental program(1)

Example Embodiment

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.
[0023] See Figure 1-3 To illustrate this embodiment, a space retractable robotic arm based on 4D printing includes a hollow columnar structure 1, a first pressing plate 2 and a second pressing plate 3. The hollow columnar structure 1 is formed by 4D printing technology, and the hollow columnar The material of the structure 1 is a shape memory polymer, the wall surface of the hollow columnar structure 1 is distributed in a net shape, and the two ends of the hollow columnar structure 1 are respectively connected with the first pressing plate 2 and the second pressing plate 3.
[0024] The shape memory polymer of the present invention is a polylactic acid material, which has thermoplasticity and shape memory effects, can be actively deformed under thermal excitation conditions, is directly printed and formed without assembly, and is a single structure with adjustable diameter and length. The hollow columnar structure 1 is a hollow cylindrical structure, a hollow triangular prism structure or a hollow quadrangular prism structure, etc., and the wall surface mesh mesh of the hollow columnar structure 1 is a rhombus or a regular hexagon, etc., and the number of meshes can be determined according to actual requirements . A heavy object is placed at the front end of the second pressing plate 3 or a catching mechanism is installed, which can accomplish the task of catching a non-cooperative target at a predetermined position.
[0025] The present invention also provides a telescopic method for a 4D printing-based spatial telescopic mechanical arm, which includes the following steps:
[0026] Step 1: Place the space-telescopic manipulator in an environment higher than the glass transition temperature of the shape memory polymer, fix the first pressure plate 2 on the plane, and apply an axial load to the second pressure plate 3 to make the hollow cylindrical structure 1 compression;
[0027] Step 2: Keep the position of the second pressure plate 3 unchanged, lower the ambient temperature to room temperature, until the surface temperature of the hollow columnar structure 1 reaches room temperature, then cancel the axial load applied to the second pressure plate 3;
[0028] Step 3: Place the compressed spatially retractable mechanical arm in an environment higher than the glass transition temperature of the shape memory polymer, and the hollow cylindrical structure 1 is stretched and expanded to the pre-compressed state under the excitation of environmental thermal stimulation.
[0029] When the hollow cylindrical structure 1 of the present invention is compressed, it is compressed to one third of its original length, and the environment of the glass transition temperature is air, vacuum or hydrothermal environment.
[0030] The above provides a detailed introduction to the 4D printing-based spatially retractable robotic arm and its retractable method provided by the present invention. Specific examples are used in this article to illustrate the principle and implementation of the present invention. The description of the above examples It is only used to help understand the method and core idea of ​​the present invention; at the same time, for those of ordinary skill in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, The content of this specification should not be construed as limiting the present invention.
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

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
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

Similar technology patents

Classification and recommendation of technical efficacy words

  • Broaden the field of application
  • Improve development

Antistatic flame-retardant ultra high molecular weight polyethylene composition and preparation method thereof

InactiveCN102432939ABroaden the field of applicationLow costBrominated flame retardantUltra-high-molecular-weight polyethylene
Owner:CHINA NAT BLUESTAR GRP CO LTD

Realization method of business process and workflow engine

InactiveCN102254234ABroaden the field of applicationReduce development cycle and maintenance costsResourcesWorkflow engineSoftware engineering
Owner:ZTE CORP

Unmanned-ship-mounted underwater robot mixing system

Owner:SIFANG JIBAO WUHAN SOFTWARE CO LTD

Nitrogen-doped graphene oxide material and preparation method thereof

ActiveCN103803539AAvoid irreversible stackingBroaden the field of applicationCarbon compoundsNitrogen atomNitrogen doped graphene
Owner:SHANGHAI JIAO TONG UNIV

CSI-based indoor human body motion speed judgment model

InactiveCN106604394ASolving Indoor Positioning and Tracking IssuesBroaden the field of applicationWireless communicationHuman bodyFourier transform
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Avionic full-duplex switched-type Ethernet network card and integration method thereof

InactiveCN101902504AImprove developmentReduce workloadTransmissionAvionics Full-Duplex Switched EthernetVirtual link
Owner:BEIJING SHENZHOU FEIHANG TECH CO LTD

People also interested in

Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products