Mecanum Wheel Base Plate for Deformation-Free Vehicle Component Measurement
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Solution Overview
Problem
Measuring vehicle body components requires a method to hold and position them deformation-free for accurate measurement, while also enabling easy transfer to a measuring device without compromising stability or precision.
Innovation Solution
A base plate with Mecanum wheels allows for precise positioning and movement, using individually driven wheels with 45° rotating rollers to navigate and turn, and can extend or retract for stable ground contact, equipped with scanners for obstacle detection and automatic path following via bar code or GPS signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the base plate is made movable with wheels for easy transfer, then the ease of operation is improved, but the stability of the base plate deteriorates
Solution Approach 1:
The base plate employs a dynamic design where the mobility state can be changed on demand. Mecanum wheels are used to enable movement in any direction when transfer is needed, and the system can transition from a mobile state to a stable stationary state when positioning is complete, thus resolving the contradiction between ease of transfer and measurement stability.
2Measurement precision
If precise positioning is achieved using Mecanum wheels, then the measurement precision is improved, but the device complexity increases
Solution Approach 1:
The patent replaces complex mechanical positioning systems with an automated guidance system. Instead of using complex mechanical mechanisms to achieve precise positioning, the base plate is guided automatically along predefined path markings using optical or electromagnetic guidance, thereby achieving high positioning precision while reducing mechanical complexity.
Solution Approach 2:
The invention introduces path markings as an intermediary element between the base plate and the measuring device. These markings serve as a reference system that enables precise positioning without requiring complex mechanical positioning mechanisms, as the base plate follows the predefined path to reach the measurement location accurately.
3Ease of operation
If the base plate is raised on extended wheels for movement, then the ease of operation is improved, but the stability during measurement deteriorates
Solution Approach 1:
The base plate employs a dynamic design where the mobility state can be changed on demand. Mecanum wheels are used to enable movement in any direction when transfer is needed, and the system can transition from a mobile state to a stable stationary state when positioning is complete, thus resolving the contradiction between ease of transfer and measurement stability.
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 precise, deformation-free positioning and stable transfer of vehicle body components for measurement, ensuring accurate optical measurements and preventing collisions, with the ability to move and turn in any direction for efficient access to measurement locations.
Implementation Method 1
the wheels are so-called Mecanum wheels which are driven individually and which have a rim composed of rollers that can be rotated freely about a respective axis inclined by 45° with respect to the wheel axle. By driving the wheels individually with a different direction of rotation and rotation speed, it is possible to move and turn the base plate in any desired directions on the ground.
Implementation Method 2
The wheels can preferably be extended from the base plate by electromechanical movement devices.
Data Source
AI summary
A base of a device for supporting a vehicle body component to be measured or for measuring such a component. The base can be moved in order to arrange the supporting or measuring device in a reference position, in particular on a floor on which the device sits in the reference position. The base preferably has a box-like design, including a top wall and a base wall which has a recess.