Pneumatic Telescopic Robotic Arm Joint for Narrow-Cavity Access
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing robotic arms have fixed-length joints that are inflexible and too large to enter narrow cavities for internal processing, limiting their adaptability and precision.
Innovation Solution
A pneumatic-controlled pitch-adjustable telescopic mechanism for robotic arms, comprising sliding blocks, a driving device, and a guide mechanism, allows for adjustable joint length by sliding blocks along predetermined tracks, enabling flexible and precise movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If electric or hydraulic power is used as driving force, then the robotic arm can achieve sufficient power, but the joint size becomes excessively large
Solution Approach 1:
The patent uses pneumatic actuators (air bags) instead of traditional electric or hydraulic systems. The pneumatic actuators provide sufficient driving power while having a compact structure that reduces joint size, allowing the robotic arm to enter narrow cavities for processing
Solution Approach 2:
The robotic arm is divided into multiple telescopic sections that can extend and retract independently. This segmentation allows the arm to achieve the required power and reach while maintaining a compact folded size, resolving the contradiction between power requirements and joint size
2Volume of moving object
If the robotic arm joint is made compact to enter narrow cavities, then the flexibility improves, but the length adjustment capability is lost
Solution Approach 1:
The robotic arm employs telescopic mechanisms that allow the joint length to dynamically change between extended and retracted states. This dynamic adjustment capability enables the arm to adapt to different working conditions - entering narrow cavities when retracted and performing tasks requiring extended reach when extended
Solution Approach 2:
The telescopic mechanism uses nested structural sections where inner segments can slide within outer segments. This nesting approach allows multiple length configurations within a compact overall size, providing both flexibility for entering narrow spaces and length adjustment capability for various processing tasks
3Device complexity
If the joint length is fixed, then the structure is simple, but the adaptability to different processing requirements is poor
Solution Approach 1:
The patent transforms the fixed-length structure into a dynamic telescopic structure that can adjust its length. The telescopic mechanism maintains relative structural simplicity while providing variable length capability to adapt to different processing requirements, resolving the contradiction between structural simplicity and adaptability
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The mechanism provides high precision, flexibility, and the ability to enter narrow spaces, enhancing the robotic arm's adaptability and usability in various applications while being environmentally friendly and pollution-free.
Implementation Method 1
a driving device, a gas bag, a first sliding block, a second sliding block and a third sliding block; the gas bag drives the first sliding block, the second sliding block and the third sliding block to slide along predetermined movement tracks respectively
Data Source
AI summary
The present invention discloses a pneumatic-controlled pitch-adjustable telescopic mechanism used for a robotic arm, which belongs to the technical field of robotic arm pneumatic control movement, comprising a sliding block, a fixed block and a driving device, the fixed block is in a fixed position; the sliding block slides relative to the fixed block according to a predetermined movement track, which is used to adjust the distance between the sliding block and the fixed block; the driving device is used to provide power to drive; a sliding bar is disposed between the driving device and the sliding block, one end of the sliding bar is fixedly connected to the driving device, and the other end is slidingly connected to the sliding block, which is used to drive the sliding block to slide; the fixed block is provided with a fixed base and a guide mechanism, the fixed base is used to restrict the sliding bar from moving in a direction non-parallel to the predetermined movement track; the guide mechanism is used to guide the sliding block to slide along the predetermined movement track. The present invention provides a pneumatic-controlled telescopic mechanism that can adjust the length of a robotic arm joint and has a small and flexible joint; using a gas bag as a driving force, the present invention has high movement precision, and is environmentally friendly and pollution-free, and the length of the joint can be changed, increasing the flexibility of the robotic arm.