Car Door Gripper Support With 3D Posture Compensation

Solution Overview

Problem

The challenge is to accurately grip a car door regardless of variations in its posture during automatic door opening operations, as the door's posture changes with the opening angle, leading to potential interference with surrounding components and damage.

Innovation Solution

A support device for a component gripping device that includes a support body with multiple shift and rotation mechanisms, allowing for three-dimensional movement and locking, ensuring accurate engagement with the door regardless of its posture, combined with a fastening release unit and door opening mechanism.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If a robot performs door opening operation with a fixed program, then automation is achieved, but the door posture variation causes engagement position deviation and potential damage

Engineering Contradiction:

Improvedoor opening automationVSAvoidengagement accuracy

Core Design Contradiction:

Extent of automationVSReliability

Solution Approach 1:

The support device incorporates three shift mechanism parts that enable dynamic adjustment of the component gripping device's position in three-dimensional space. This dynamic positioning capability allows the system to adapt to varying door postures during automated operations, maintaining accurate engagement despite posture variations caused by different opening angles and vehicle body variations.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system uses a sensor to detect the actual position and posture of the door, providing feedback to the control unit. The control unit then adjusts the shift mechanism parts based on this feedback to correct any engagement position deviation, ensuring reliable and accurate gripping throughout the automated door opening process.

Inventive Principle:

Principle #23Feedback

2Device complexity

If the component gripping device is fixed in position, then device complexity is reduced, but it cannot accommodate door posture variations leading to interference and damage

Engineering Contradiction:

Improvegripping device structureVSAvoidposture adaptation capability

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The support device incorporates three shift mechanism parts that enable dynamic adjustment of the component gripping device's position in three-dimensional space. This dynamic positioning capability allows the system to adapt to varying door postures during automated operations, maintaining accurate engagement despite posture variations caused by different opening angles and vehicle body variations.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The shift mechanism parts provide movement freedom in three-dimensional space (X, Y, and Z directions), adding spatial dimensions to the gripping device's positioning capability. This multi-dimensional adjustment enables the device to accommodate door posture variations that cannot be addressed by simple linear or rotational adjustments alone.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Productivity

If the robot uses a predetermined program for door gripping, then operational speed is maintained, but position deviation occurs due to door posture changes

Engineering Contradiction:

Improvedoor opening speedVSAvoidengagement position accuracy

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

The sensor detects the door's initial posture and position before the gripping operation begins. This preliminary detection allows the control unit to pre-calculate the necessary adjustments for the shift mechanism parts, enabling the system to maintain high operational speed while ensuring accurate engagement position despite posture variations.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system uses a sensor to detect the actual position and posture of the door, providing feedback to the control unit. The control unit then adjusts the shift mechanism parts based on this feedback to correct any engagement position deviation, ensuring reliable and accurate gripping throughout the automated door opening process.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS11572120B2Support device for component gripping device and vehicle door detaching device

Publication Date: 2023.02.07 DAIFUKU CO LTD

AI summary

A support device supports a component gripping device including an engagement part to be engaged with a predetermined component. The component gripping device grips the component in a state in which the engagement part is caused to be engaged with the component. The support device contains a support body part, a first shift mechanism part, a second shift mechanism part, a third shift mechanism part, a first rotation mechanism part, a second rotation mechanism part, and a third rotation mechanism part.