Sliding Die Support Mechanism for Punch-to-Hole Alignment
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Solution Overview
Problem
The existing die support mechanisms fail to maintain alignment between the center of the blanking punch and the punch hole during continuous operation, leading to potential off-axis failures due to thermal deformation, where the blanking punch may hit the opening edge of the punch hole.
Innovation Solution
A die support mechanism with a die holding member featuring a slit and a ceiling hole, supported by a horizontally slidable base, includes a guide portion that ensures the punch hole is centered on the blanking punch through sliding contact, allowing for horizontal adjustment to prevent off-axis failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed die support mechanism is used, then the structure is simple, but the alignment between the blanking punch and punch hole deteriorates during continuous operation due to thermal deformation
Solution Approach 1:
The die holding member is designed to be horizontally movable relative to the support base through a guide portion, transforming the fixed support structure into a dynamic one. This allows the die holding member to automatically adjust its position during continuous operation to maintain alignment between the blanking punch and punch hole despite thermal deformation
Solution Approach 2:
The guide portion enables the die holding member to self-adjust its horizontal position automatically during operation. The mechanism uses the inherent thermal deformation and operational forces to drive the die holding member into the correct aligned position without external intervention or complex control systems
2Manufacturing precision
If a position adjustment mechanism is added to maintain alignment, then the manufacturing precision is improved, but the device complexity increases
Solution Approach 1:
Instead of a complex position adjustment mechanism with multiple actuators and controls, the invention uses a simple horizontal guide portion that allows the die holding member to move freely in the horizontal direction. This dynamic structure maintains alignment with minimal complexity by letting the system self-adjust during operation
Solution Approach 2:
The guide portion enables automatic self-adjustment of the die holding member's horizontal position during operation. The mechanism eliminates the need for external position adjustment devices by using the operational process itself to maintain alignment between the blanking punch and punch hole
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 solution effectively prevents off-axis failures by maintaining alignment between the blanking punch and the punch hole, enhancing the durability of the punch and die, and stabilizing the shape of the cylindrical workpiece generated.
Implementation Method 1
a guide portion formed on an inner surface of the ceiling hole and configured to come into sliding contact with the blanking punch and to slide the die holding member to a position where the punch hole is centered on the blanking punch
Data Source
AI summary
A die support mechanism includes: a die holding member including a slit horizontally passing through the die holding member, wherein a lower side from the slit forms a die holding base configured to hold a blanking die having a punch hole, an upper side from the slit forms a ceiling portion having a ceiling hole concentric with the punch hole, a part of a sheet metal inserted in the slit is punched out as a blank by a blanking punch, and the ceiling portion separates the sheet metal from the blanking punch; a support base configured to horizontally slidably support the die holding member; and a guide portion formed on an inner surface of the ceiling hole and configured to come into sliding contact with the blanking punch and to slide the die holding member to a position where the punch hole is centered on the blanking punch.