Floating Bending Structure for Precise Positioning and Crack Prevention
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Solution Overview
Problem
Existing bending devices suffer from low efficiency and accuracy, often requiring multiple steps and leading to workpiece stretching and damage during the bending process, resulting in a low yield rate.
Innovation Solution
A bending device with a movable member, fixed member, and pressure applying member that allows the body part of the workpiece to be fixed and the connection part to extend, using accommodation grooves and abutting surfaces to ensure precise positioning and stress release, preventing cracks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing bending devices are used, then the bending operation can be completed, but the production efficiency is low due to multiple steps required
Solution Approach 1:
The patent combines multiple bending steps into a single integrated bending device. The device includes a pressing plate, a bending mold with positioning structure, and a supporting mold that work together in one operation to complete what previously required multiple separate steps, thereby improving productivity without excessive complexity
Solution Approach 2:
The bending device is designed as a multi-functional integrated system that performs positioning, bending, and supporting functions simultaneously. The bending mold includes both positioning structures for the body part and bending surfaces for the connection part, allowing one device to accomplish multiple operations that previously required separate devices or steps
2Manufacturing precision
If existing bending devices are used, then the bending operation can be completed, but the bending accuracy is low
Solution Approach 1:
The bending device incorporates a positioning structure on the bending mold that pre-positions the body part before bending occurs. The positioning structure includes positioning holes and corresponding pins that establish precise locations for the body part, ensuring accurate bending geometry is achieved from the start of the operation
Solution Approach 2:
The bending mold features localized positioning structures at specific locations where the body part needs to be secured. Rather than complex overall positioning, the design uses simple positioning holes and pins at critical locations to ensure accurate bending while keeping the overall structure relatively simple
3Reliability
If existing bending devices are used, then the bending operation can be completed, but the workpiece is stretched and damaged leading to low yield rate
Solution Approach 1:
The patent introduces a supporting mold as an intermediary element between the bending mold and the workpiece. The supporting mold provides a stable base that prevents the body part from deforming or stretching during bending. It includes supporting surfaces that contact the body part and prevent unwanted movement, ensuring the workpiece maintains its integrity throughout the bending process
Solution Approach 2:
The supporting mold is positioned beforehand to provide cushioning support to the body part before bending forces are applied. The supporting surfaces are designed to contact and stabilize the body part in advance, preventing stretching and damage that would otherwise occur during the bending operation, thereby improving yield rate
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
Improves bending accuracy and yield rate by ensuring precise positioning and stress release during the bending process, enhancing the efficiency and quality of the bending operation.
Implementation Method 1
an elastic member provided between the base and the movable member
Data Source
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AI summary
Disclosed are a bending device and a floating bending apparatus. The bending device includes: a movable member, a fixed member and a pressure applying member. The body part of the to-be-bent workpiece is located between the pressure applying member and the bending part, while the connection part of the to-be-bent workpiece is located on one side of the fixed member close to the pressure applying member. During the bending process, the pressure applying member moves along the first direction to fix the body part between the pressure applying member and the bending part, achieving the positioning of the to-be-bent workpiece in the bending device; subsequently, the pressure applying member continues to move along the first direction such that the body part moves together with the bending part along the first direction, while the connection part is bent under the constraint of the fixed member.