Floating Pressing Plate Assembly to Prevent Welding Misalignment
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Solution Overview
Problem
The position-limiting member in pressing plate tools used for welding in battery manufacturing often becomes loose during repeated pressing, leading to misalignment and poor welding quality.
Innovation Solution
A pressing plate tool with a position-limiting member featuring a thread on a first rod portion fastened to a via hole and a second rod portion clearance-fitted into a position-limiting hole, allowing the pressing head to float while the member remains stationary, along with an elastic member and gasket for enhanced stability and uniform pressing force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the position-limiting member uses a threaded connection for fixed positioning, then the connection strength is improved, but the complexity of the structure increases and the pressing head cannot adapt to position adjustments
Solution Approach 1:
The position-limiting member is segmented into two functional parts: a first rod portion with external threads for strong fixed connection to the pressing plate, and a second rod portion without threads for clearance-fit insertion into the pressing head. This segmentation allows each part to fulfill its specific function optimally while reducing overall structural complexity.
Solution Approach 2:
Different portions of the position-limiting member have different connection qualities: the first rod portion has threaded engagement for strong fixed positioning, while the second rod portion has a clearance fit allowing relative movement. This local differentiation in connection quality enables both stable mounting and adaptive positioning.
2Manufacturing precision
If the position-limiting member is firmly fixed to prevent any movement, then the positioning precision is improved, but the pressing head cannot float to adapt to workpiece variations
Solution Approach 1:
The position-limiting member is divided into a fixed first rod portion that maintains precise positioning relative to the pressing plate, and a movable second rod portion that allows the pressing head to float and adapt to workpiece variations through relative movement within the clearance fit.
Solution Approach 2:
The connection between the position-limiting member and pressing head is designed with local quality differentiation: the first rod portion provides precise fixed positioning, while the second rod portion provides a clearance fit that enables controlled floating movement for adaptability.
3Productivity
If the position-limiting member allows repeated pressing operations, then the productivity is improved, but the loosening of the position-limiting member occurs affecting reliability
Solution Approach 1:
The position-limiting member is segmented such that the first rod portion with threads provides reliable fixed positioning that resists loosening during repeated pressing, while the second rod portion accommodates the dynamic movements without transmitting loosening forces to the connection points.
Solution Approach 2:
The threaded first rod portion provides high connection reliability resistant to loosening, while the clearance-fit second rod portion absorbs movement variations. This local quality differentiation maintains positioning reliability throughout repeated pressing operations.
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
Reduces the likelihood of misalignment and damage to workpieces, ensuring consistent and reliable welding by minimizing loosening of the position-limiting member and providing uniform pressing force.
Implementation Method 1
a thread being formed on the first rod portion, the thread of the first rod portion being fastened to a thread in the via hole
Implementation Method 2
the second rod portion extending into the position-limiting hole, and the second rod portion being clearance-fitted to an inner surface of the position-limiting hole
Data Source
AI summary
A pressing plate tool is disclosed that includes a pressing plate assembly that includes: a pressing plate provided with a via hole extending in a first direction; a pressing head being capable of moving relative to the pressing plate in the first direction, the pressing head being provided with a position-limiting hole extending in the first direction, the position-limiting hole being coaxial and in communication with the via hole; and a position-limiting member including a head portion and a rod portion, the rod portion including a first rod portion and a second rod portion connected in the first direction, a thread being formed on the first rod portion, the thread of the first rod portion being fastened to a thread in the via hole, the second rod portion extending into the position-limiting hole, and the second rod portion being clearance-fitted to an inner surface of the position-limiting hole.