Door Hinge Alignment Jig for Vehicle Body Mounting
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Solution Overview
Problem
The manual process of mounting door hinges on a vehicle body is costly and prone to assembly variations, leading to productivity issues and potential deformation or deterioration of the door's external appearance due to human error.
Innovation Solution
An automatic jig system that aligns door hinges at a predetermined mounting angle, utilizing a support frame, movable support parts, actuating cylinders, guide members, and a clamping mechanism to position and secure door hinges on a vehicle body, eliminating the need for manual labor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If manual work is used for aligning and mounting door hinges, then flexibility and ease of operation are maintained, but manufacturing cost increases and productivity decreases
Solution Approach 1:
The door hinge mounting system performs alignment and mounting operations automatically without requiring manual intervention. The system uses self-contained alignment mechanisms and automated fastening devices that execute the mounting process independently, thereby maintaining operational simplicity while significantly improving productivity
Solution Approach 2:
The patent replaces manual mechanical operations with automated mechanical systems. Alignment jigs and mounting devices are equipped with automated positioning mechanisms and fastening systems that eliminate the need for manual alignment and fastening, thus increasing productivity while keeping the system relatively simple
2Ease of operation
If manual fastening of door hinges is used, then ease of operation is maintained, but assembly variation increases leading to product quality deterioration
Solution Approach 1:
The automated fastening system performs the fastening operation autonomously with consistent positioning and force application. The system uses pre-programmed motion paths and controlled fastening forces to eliminate the variability introduced by manual operations, ensuring uniform assembly quality across all door hinges
Solution Approach 2:
The patent implements controlled parameters for the fastening process, including precise positioning coordinates, fastening force magnitude, and fastening sequence. By standardizing these parameters through automation, the system eliminates the variations that occur with manual fastening while maintaining ease of operation through automated control
3Productivity
If automated alignment system is implemented, then productivity and manufacturing precision are improved, but device complexity increases
Solution Approach 1:
The automated alignment and mounting system is divided into distinct functional modules: alignment jig module, positioning module, fastening module, and control module. Each module performs a specific function independently, which simplifies the overall system design and maintenance while enabling high productivity through coordinated operation of these segmented components
Solution Approach 2:
The alignment and mounting system is designed with universal components that can handle different door hinge configurations and vehicle models. The system uses adjustable fixtures and programmable control that allow the same basic apparatus to perform multiple functions, thereby reducing overall device complexity while maintaining high productivity across different production scenarios
Data Source
AI summary
A jig for aligning door hinges into a position at a predetermined mounting angle in an automatic system that automatically mounts door hinges to upper and lower seats on pillars of a vehicle body conveyed by a conveying unit. The jig may include a support frame, a first support part fixed to the support frame and supporting a hinge bracket of the door hinge, a pair of second support parts movably disposed at both sides of the first support part and respectively supporting both sides of a door bracket of the door hinge, and an actuating cylinder fixed to the support frame and connected with the second support parts.