Parallel Robot Base Plate Planar Motor Arrangement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing parallel robots have a height increase issue due to the arrangement of the rotation motor device, reduction mechanism, and rotary member, which necessitates a larger size in the height direction to accommodate gear engagement, leading to increased height and stress on components.
Innovation Solution
The transmission mechanism and rotation-driving mechanism are arranged on the same surface of the base portion, reducing the number of components on the opposite surface, minimizing height protrusion, and optimizing the length of the rotation-driving mechanism to decrease stress and overall size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the rotation motor device, reduction mechanism, and rotary member are arranged on the base portion with gear engagement, then the driving force can be transmitted effectively, but the height of the parallel robot increases
Solution Approach 1:
The patent transitions from a three-dimensional stacked arrangement (motor, reduction mechanism, rotary member arranged vertically) to a two-dimensional planar arrangement (all components arranged on the same surface of the base portion). This dimensional change allows gear engagement while maintaining a low profile, effectively resolving the contradiction between power transmission and height reduction.
Solution Approach 2:
The patent arranges the rotation motor device, reduction mechanism, and rotary member in a nested configuration where components are positioned within the footprint of larger components. The reduction mechanism is arranged between the motor and rotary member in a compact sequence, allowing all components to engage on the same surface without increasing height.
2Ease of manufacture
If the rotation motor device is raised from the base portion to accommodate gear engagement, then the components can be properly positioned, but the overall size of the parallel robot increases
Solution Approach 1:
The patent merges the positioning function into the base portion itself by arranging all components on the same surface. The base portion is designed with integrated mounting positions for the rotation motor device, reduction mechanism, and rotary member, eliminating the need to raise components and reducing the overall volume while maintaining ease of manufacture.
3Ease of manufacture
If the rotation-driving mechanism is made longer to accommodate component arrangement, then the components can be properly positioned, but the stress on the mechanism increases
Solution Approach 1:
The patent uses planar arrangement on the base portion surface to position components close to each other, minimizing the length of the rotation-driving mechanism. By arranging components in two dimensions rather than extending in three dimensions, the mechanism length is reduced while stress is minimized.
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
This configuration allows for a smaller size in the height direction, reduces stress on the rotation-driving mechanism, and enables a more compact parallel robot design while maintaining functionality.
Implementation Method 1
A rotary shaft of the rotation motor device, the reduction mechanism, and the rotary member engage with each other using gears to transmit a driving force
Data Source
AI summary
A robot apparatus includes: a base plate; a rotation-driving motor provided on the base plate; a transmission mechanism that is provided on a bottom surface side of the base plate and to which a rotational force of the rotation-driving motor is transmitted; and a rotation-driving mechanism that is provided on the bottom surface side of the base plate and to which the rotational force of the rotation-driving motor is input via the transmission mechanism. A workpiece is rotated by the rotation-driving mechanism at an end of the rotation-driving mechanism opposite to the base plate.