Clamper and holding jig including same
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Solution Overview
Problem
Conventional holding jigs for plate-shaped workpieces experience displacement and detachment issues during surface treatment processes, leading to potential damage and plating defects when immersed in liquids.
Innovation Solution
A clamper system with a first and second clamping member, each having a base portion and contact portion with plate spring portions that elastically deform to securely hold the workpiece, and a biasing member to bring these portions closer, preventing displacement and detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional holding jigs are used to hold plate-shaped workpieces during surface treatment, then the workpieces can be held in a spread state, but the clamping positions can be displaced and the workpieces can be detached when immersed in liquid or subjected to liquid flow
Solution Approach 1:
The contact portion is divided into multiple plate spring portions that can independently elastically deform. This segmentation allows each plate spring portion to adapt to the workpiece surface while maintaining overall clamping stability, preventing displacement and detachment during liquid immersion
Solution Approach 2:
The plate spring portions are designed to elastically deform under liquid flow conditions, changing their physical state from rigid to flexible. This allows the clamping structure to absorb liquid flow forces while maintaining secure contact with the workpiece, preventing clamping position displacement
2Stability of the object's composition
If rigid clamping structures are used to prevent workpiece displacement, then clamping position stability is improved, but the workpieces can still be detached under strong liquid flow due to lack of flexibility
Solution Approach 1:
The clamping structure transitions from a static rigid configuration to a dynamic system where plate spring portions can independently elastically deform. This dynamic capability allows the structure to adapt to liquid flow forces while maintaining secure workpiece attachment, resolving the contradiction between stability and reliability
3Ease of operation
If flexible clamping portions are used to adapt to workpiece surface variations, then ease of operation is improved, but the clamping force may be insufficient to prevent detachment under liquid flow
Solution Approach 1:
The invention merges the flexibility of individual plate spring portions with the collective clamping force of multiple such portions working together. Each plate spring portion independently adapts to the workpiece surface while the combined structure provides sufficient clamping force to prevent detachment under liquid flow conditions
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
The clamper system effectively maintains the secure clamping of plate-shaped workpieces during surface treatment, preventing displacement and detachment, thus ensuring stable processing and reducing defects.
Implementation Method 1
the plurality of the plate spring portions is configured to elastically deform independently from each other to come into contact with the workpiece
Implementation Method 2
The clamping member biasing member is configured to bias at least one of the first clamping member and the second clamping member in a direction of bringing the first contact portion and the second contact portion closer to each other
Data Source
AI summary
A clamper includes: a first clamping member having a first base portion and a first contact portion that is to be in contact with one surface of the workpiece; a second clamping member having a second contact portion that is to be in contact with the other surface of the workpiece; and a clamping member biasing member configured to bias at least one of the first clamping member and the second clamping member in a direction of bringing the first contact portion and the second contact portion closer to each other. The first contact portion has a plurality of plate spring portions extending from the first base portion, the plurality of plate spring portions configured to elastically deform independently from each other to come into contact with the workpiece.