[Q]What are the practical application fields of parallel robots?
[A] A parallel robot can be defined as a closed loop mechanism that connects a moving platform and a fixed platform through at least two independent motion chains, with two or more degrees of freedom, and is driven in parallel. Workshop CMM Q&A Essentials
Parallel robots have no accumulated errors and high accuracy; The driving device can be placed on or near a fixed platform, so that the moving part has light weight, high speed, and good dynamic response; Compact structure, high stiffness, and large load-bearing capacity; Features such as small workspace.
Based on the above characteristics, parallel robots have been widely used in fields that require high stiffness, precision, or large loads without requiring a large workspace. The practical application fields include:
1. Sorting, handling, and packing in industries such as food, electronics, chemical, and packaging.
2. Metal cutting processing
3. Similar to milling machines, grinding machines, drilling machines or spot welding machines, cutting machines.
4. Measuring machine, used as an error compensator for other mechanisms
5. Cell manipulation robots in biomedical engineering, injection and segmentation of cells, microsurgery robots, etc;
6. Parallel robots are also widely used in military fields such as submarines and tank driving motion simulators, vector nozzles for next-generation fighter jets, docking devices for submarines and space vehicles, and attitude controllers;
Parallel robots have been in use since the 1990s, mainly in light industries such as medicine and electronics. Parallel robots have a large load-bearing capacity; High precision; Small footprint; Fast speed; Wear resistance and other characteristics. This is a good choice for industrial production that requires high precision.
[Q] What are the characteristics of parallel robots?
[A] The characteristics of parallel robots include: (1) no accumulation, error, and high accuracy; (2) The driving device can be placed on or near a fixed platform, so that the moving part has light weight, high speed, and good dynamic response; (3) Compact structure, high stiffness, and large load-bearing capacity; (4) A fully symmetric parallel mechanism has good isotropy;
[Q] Production efficiency of parallel robot production line
[A] High production efficiency. Parallel robots greatly improve production efficiency, liberate labor, and reduce labor and material costs. Parallel robots are widely used in light industries such as food, medicine, and electronics, and have unparalleled advantages in material handling, packaging, sorting, and other aspects. In the past two years, with the increasingly widespread application of parallel robots in the market, they have become a new force in the growing demand for industrial robots.
[Q]What are the common joints of parallel robots?
[A] Parallel robots commonly use rotating joints, moving joints, spherical joints, and Hooke joint.
[Q]Why is the repetitive accuracy of parallel robots lower than that of series robots?
[A] Because parallel robots require consistent requirements for the three arms and high machining requirements, and generally use ordinary reducers.A series connected robot (six joint) requires less size for a single arm, just a compact link, and requires high precision reducers (RV, harmonic).