Transfer Device Base Member Elastic Deformation Control
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Solution Overview
Problem
Conventional transfer devices face challenges in accurately transferring fine transfer patterns due to slight elastic deformation of the base member under reaction forces, leading to inaccuracies in the movement of the moving body.
Innovation Solution
A transfer device design that includes a base member with a first press portion and a moving member with a second press portion, where the supporting body is engaged only at regions of minimal elastic deformation, guiding the movement to maintain accuracy during the transfer process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the base member is supported through linear guide bearings to enable movement, then the moving body can be positioned and moved, but the base member undergoes elastic deformation under reaction force during pressing, causing the moving body to deviate from its accurate orbit
Solution Approach 1:
The base member is divided into a fixed portion and a movable portion that can move relative to each other. The movable portion contains the moving body and is separated from the fixed portion, allowing the pressing operation to be isolated from the guiding structure. This segmentation prevents elastic deformation from affecting the guiding accuracy while maintaining movement capability.
Solution Approach 2:
The guiding function is extracted from the base member and assigned to a separate guiding structure (such as guide rails or guide ways) that is rigidly supported on the fixed portion. This extraction ensures that the guiding structure is not subjected to elastic deformation during pressing, thereby maintaining accurate orbital movement of the moving body.
2Manufacturing precision
If the base member is made rigid to prevent elastic deformation, then transfer accuracy is maintained, but the structure becomes more complex and difficult to manufacture
Solution Approach 1:
The base member is segmented into fixed and movable portions, with the guiding structure separated from the pressing mechanism. This segmentation allows each component to be optimized independently - the guiding structure can be made rigid for accuracy while the movable portion remains simpler in construction, reducing overall manufacturing complexity.
Solution Approach 2:
The fixed portion of the base member is merged with the guiding structure to form a rigid, deformation-free reference frame. This merging ensures that the guiding function is provided by a stable structure that does not undergo elastic deformation, achieving high transfer accuracy without requiring the entire base member to be overly complex.
3Ease of operation
If the moving body is supported on the base member through linear guide bearings, then smooth movement is achieved, but the reaction force causes elastic deformation of the base member, leading to orbital deviation
Solution Approach 1:
The support system is segmented into a guiding mechanism (linear guide bearings) attached to the fixed portion and a movable portion that carries the pressing mechanism. This segmentation ensures that the guiding bearings operate on a stable, non-deforming reference frame, maintaining both smooth movement and orbital accuracy simultaneously.
Solution Approach 2:
The guiding function is extracted and assigned to a separate guiding structure that is rigidly mounted on the fixed portion of the base member. This extraction ensures that the guiding structure is isolated from the elastic deformation caused by pressing reaction forces, thereby maintaining reliable orbital accuracy while enabling smooth movement through the linear guide bearings.
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
This design ensures accurate transfer of fine patterns by minimizing the impact of elastic deformation, allowing for precise movement and improved transfer accuracy.
Implementation Method 1
the base member of the transfer device is elastically deformed very slightly by reaction force of pressing force
Data Source
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AI summary
A transfer device 5 transfers a fine transfer pattern M1 formed on a mold M to a molding target W. The transfer device includes: a base member 47 including a press body 31; a moving member 49 including a molding target placing body 33 that sandwiches and presses the mold M and the molding target W in cooperation with the press body 31, and is provided on the base member 47 so that the molding target placing body 33 can move; and a moving body supporting body 51 that includes a guide portion 71, and is engaged with and provided integrally on the base member 47 only in a region of the base member 47 elastically deformed very slightly by reaction force when the press is performed, the region being a region where a flexure angle becomes substantially "0".