NC Flanging Beam Drive for Precise Heavy-Load Plate Bending

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Solution Overview

Problem

Conventional metal plate bending machines face challenges in achieving high precision and efficiency due to additional swing in horizontal and vertical movements, leading to poor control precision, indentation on the plate surface, and limitations in mass production, especially for heavy-load applications.

Innovation Solution

A high-precision heavy-load numerically-controlled flanging machine with a flanging beam driven by an inclined slide rail and crank-connecting rod mechanisms, utilizing a grating ruler for displacement feedback to achieve precise control and minimize additional swing, ensuring smooth bending without indentation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If additional swing is introduced in horizontal and vertical movements, then the bending process can accommodate complex flanging orbits, but the control precision deteriorates and indentation occurs on the plate surface

Engineering Contradiction:
Improveflanging orbit complexityVSAvoidtool nose orbit control precision
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The movement control is segmented into two independent parts: the flanging beam provides pure translation in vertical direction, while the pressing beam provides pure translation in horizontal direction. This segmentation eliminates the coupling of additional swings that occurred in previous single-beam designs, allowing each beam to move independently without interfering with the other's precision.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention transitions from a single-beam system to a dual-beam system operating in different dimensional planes. The flanging beam operates primarily in the vertical dimension while the pressing beam operates in the horizontal dimension, effectively adding another degree of freedom without the interference of additional swings that would compromise precision.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of operation

If manual correction parameters are input repeatedly, then bending angle adjustments can be made, but the efficiency deteriorates and intelligent control is limited

Engineering Contradiction:
Improvebending angle adjustment capabilityVSAvoidcorrection efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The system incorporates real-time feedback mechanisms where sensors detect the actual positions of the flanging beam and pressing beam, and this information is fed back to the control system. The control system automatically calculates and adjusts the correction parameters based on the feedback, eliminating the need for manual repeated input and enabling intelligent automatic correction of bending angles.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The control system performs self-correction by automatically calculating the required adjustment parameters based on real-time position data from sensors. The system serves itself by autonomously adjusting the bending angle without requiring external manual intervention, thereby improving efficiency and enabling intelligent control.

Inventive Principle:
Principle #25Self-service

3Device complexity

If hinge points are used for both driving and guiding functions, then the structure is simplified, but the parallelism of the flanging beam deteriorates due to manufacturing errors

Engineering Contradiction:
Improvehinge point configurationVSAvoidbeam parallelism
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The driving and guiding functions are segmented and assigned to different components. The hinge points are dedicated solely to driving motion, while separate guide rails or guide mechanisms handle the guiding function. This functional segmentation eliminates the compounding effect of manufacturing errors on parallelism that occurs when hinge points must perform both driving and guiding functions simultaneously.

Inventive Principle:
Principle #1Segmentation

4Ease of operation

If a supplementary bending robot is used, then labor intensity is reduced and operational safety is improved, but the cost increases and the robot covers a large area

Engineering Contradiction:
Improveoperational safetyVSAvoidequipment cost and space requirement
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The invention merges the bending execution function and the material support function into a single integrated flanging machine system. The flanging beam and pressing beam work together as a unified mechanism that both bends the plate and supports the material throughout the process, eliminating the need for separate supplementary robots and reducing overall system complexity, cost, and space requirements while maintaining operational safety.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS11554406B2High-precision heavy-load numerically-controlled flanging machine
Publication Date: 2023.01.17 NANJING UNIV OF POSTS & TELECOMM
  • US11554406B2 patent drawing
  • US11554406B2 patent drawing
  • US11554406B2 patent drawing

AI summary

A high-precision heavy-load numerically-controlled flanging machine comprises a machine frame, an edge pressing assembly, a flanging beam and a flanging beam transmission mechanism that comprises an inclined slide rail, an inertia block and two crank-connecting rod mechanisms; the flanging beam is provided with a driving inclined plane; the inclined slide rail is mounted on the machine frame; the inertia block is provided with two non-parallel inclined planes, wherein one inclined plane of the inertia block is slidably mounted on the inclined slide rail to form a sliding pair I, and the other inclined plane of the inertia block is in sliding fit with the driving inclined plane of the flanging beam to form a sliding pair II; cranks of the two crank-connecting rod mechanisms are hinged on the machine frame.