Wheel Cap Burr Removal with Integrated Precision Positioning

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Solution Overview

Problem

Traditional methods for removing burrs at the cap sections of aluminum alloy wheels are low in precision and consistency, leading to non-uniform chamfers and increased corrosion risks, affecting film thickness and leading to experimental failures and customer complaints.

Innovation Solution

A high-precision wheel cap section burr removing device with a combination of pre-positioning and precision positioning systems, utilizing sliding plates, jacking cylinders, and servo motors to ensure accurate alignment and removal of burrs, integrating a cutter system for precise burr cutting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If traditional burr removing method is used, then the device complexity is low, but the manufacturing precision of chamfers deteriorates

Engineering Contradiction:
Improvechamfer precisionVSAvoidpositioning system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The positioning system is segmented into two distinct stages: pre-positioning (coarse positioning) and precision positioning. The pre-positioning stage uses a simple positioning clamp to roughly position the wheel, while the precision positioning stage uses a high-precision positioning device with the cutter to achieve accurate chamfer dimensions. This segmentation allows each stage to be optimized independently, reducing overall system complexity while achieving high precision.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The pre-positioning step is performed before precision positioning to establish a preliminary position for the wheel. This preliminary action reduces the positioning range for the subsequent precision positioning stage, allowing the high-precision positioning device to work within a smaller, more controlled range, thereby improving efficiency and reducing the complexity of the overall positioning system.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If traditional burr removing method is used, then the device complexity is low, but the consistency of burr removal deteriorates

Engineering Contradiction:
Improveburr removal consistencyVSAvoidpositioning system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The traditional mechanical positioning system is replaced with a high-precision positioning device that integrates positioning and cutting functions. This device uses precision guideways, adjustable positioning blocks, and a programmable control system to replace manual mechanical operations, thereby improving consistency and reliability while managing system complexity through automation and standardization.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The high-precision positioning device incorporates feedback mechanisms through its control system, which monitors and adjusts the positioning and cutting parameters in real-time. This feedback ensures consistent burr removal by automatically compensating for variations in wheel dimensions and positioning, thereby improving reliability without requiring overly complex mechanical structures.

Inventive Principle:
Principle #23Feedback

3Manufacturing precision

If high-precision positioning is adopted, then the manufacturing precision of chamfers is improved, but the device complexity increases

Engineering Contradiction:
Improvechamfer concentricityVSAvoidpositioning system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The high-precision positioning device merges the positioning function and the cutting function into a single integrated device. The positioning block and cutter are combined on the same precision-guided platform, ensuring that the positioning reference and cutting reference are coaxial. This merging eliminates the need for separate positioning and cutting devices, reducing overall system complexity while achieving high chamfer concentricity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The high-precision positioning device is designed with multi-functionality, serving both as a positioning device and a cutting device. The adjustable positioning blocks can accommodate different wheel sizes and positions, while the integrated cutter performs the actual burr removal. This universality reduces the need for multiple specialized devices, thereby managing complexity while maintaining high precision.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP3437769B1High-precision wheel cap section burr removing device
Publication Date: 2024.06.05 CITIC DICASTAL CO LTD
  • EP3437769B1 patent drawingFigure 1
  • EP3437769B1 patent drawingFigure 2~3
  • EP3437769B1 patent drawingFigure 4~5

AI summary

Disclosed is a high-precision wheel cap section burr removing device, comprising a frame, jacking cylinders, guide posts, a servo motor, a lifting table, a bearing seat, a shaft, a bearing, a rotating table, adjusting guide rails, an adjusting cylinder, a left sliding table, a gear rack, a right sliding table, pre-positioning cylinders, pre-positioning guide rails, a sliding plate I, a sliding plate II, pre-positioning posts, corner cylinder pressure claws, a left burr cutter and a right burr cutter. The precision positioning system and the burr removing cutter system are integrated to reduce the combined error, and the rotating centers of the burr cutters are superposed with the central axes of the cap section burrs to realize high-precision burr removal, thereby effectively solving the problems of deviation and non-uniformity of burr removal at the cap section. The device has the characteristics of novel structure, skillful design, accuracy, high efficiency, simple operation and the like.