Static Compliance Testing Device for Industrial Robots
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Solution Overview
Problem
Traditional static compliance performance testing devices for industrial robots are complex and expensive, making them difficult to meet the needs of actual production.
Innovation Solution
A static compliance performance testing device with a simple structure and low cost, featuring a loading direction adjusting component and a loading force adjusting component using a lever with first-stage and second-stage weights, allowing for adjustment of force bearing direction and magnitude without complex servo motors or oil cylinders, and equipped with sensors for precise measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional static compliance performance testing devices are used, then measurement precision is improved, but device complexity increases and cost increases
Solution Approach 1:
The testing device is segmented into independent functional modules: a loading direction adjusting component with multiple loading mechanisms (spring loading, weight loading, elastic loading) that can be selected based on test requirements, and a loading force adjusting component with adjustable parameters. This modular segmentation allows each component to be optimized independently, reducing overall system complexity while maintaining measurement precision.
Solution Approach 2:
The device employs parameter changes to achieve different loading forces and directions by adjusting the configuration of loading components (changing spring constants, weight values, elastic coefficients) rather than changing the fundamental structure. This allows the same basic device structure to adapt to different testing requirements, reducing complexity while maintaining versatility and precision.
2Measurement precision
If traditional static compliance performance testing devices are used, then measurement precision is improved, but cost increases
Solution Approach 1:
The device uses inexpensive, easily replaceable loading components such as springs, weights, and elastic elements instead of expensive precision actuators. These simple mechanical components can be manufactured at low cost and replaced if needed, significantly reducing the overall manufacturing cost of the testing device while maintaining sufficient measurement precision through proper component selection and calibration.
Solution Approach 2:
The invention replaces complex motorized or hydraulic loading systems with simple mechanical loading mechanisms (springs, weights, elastic elements). This substitution eliminates the need for expensive motors, sensors, and control systems while providing sufficient loading capability for static compliance testing, thereby dramatically reducing manufacturing cost.
3Measurement precision
If loading force is adjusted using servo motor or oil cylinder, then loading force control precision is improved, but device complexity increases
Solution Approach 1:
The device replaces servo motors and oil cylinders with simple mechanical loading force adjusting components including springs with adjustable precompression, weights with adjustable positions, and elastic elements with adjustable configurations. These passive mechanical components provide sufficient loading force control precision through their inherent mechanical properties and adjustable geometry, eliminating complex actuators and control systems.
Solution Approach 2:
The loading force adjusting components are designed to be self-regulating through their mechanical structure. Springs provide automatic force adjustment through precompression, weights provide stable loading through gravity, and elastic elements provide controlled deformation. These components automatically maintain the desired loading force without requiring external control systems, reducing device complexity while maintaining control precision.
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
Enables convenient and precise adjustment of loading force direction and magnitude, providing a cost-effective solution for static compliance testing in industrial robots, with a large adjustment range and high accuracy, facilitating efficient testing without complex equipment.
Implementation Method 1
a loading force adjusting component, comprising a lever, a first-stage weight and a second-stage weight, wherein the lever is provided with a fixing part and is rotatable around the fixing part
Implementation Method 2
the loading force adjusting component, comprising a lever, a first-stage weight and a second-stage weight, wherein the lever is provided with a fixing part and is rotatable around the fixing part
Data Source
AI summary
The present invention relates to a static compliance performance testing device applied to an industrial robot, comprising a loading direction adjusting component and a loading force adjusting component, wherein the force applying end of the loading direction adjusting component is connected with an end mechanical interface of the industrial robot, and is configured to adjust a force bearing direction of the end mechanical interface. The loading force adjusting component comprises a lever, a first-stage weight and a second-stage weight, the lever is provided with a fixing part and is rotatable around the fixing part, the force bearing end of the loading direction adjusting component is connected with the lever, the first-stage weight is suspended on the lever, the second-stage weight is suspended on the lever and is movable along the lever, the weight of the first-stage weight is larger than the weight of the second-stage weight.