Swaging Apparatus Shock-Absorbing Mechanism
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Solution Overview
Problem
The existing swaging apparatuses face issues with abnormal operation and excessive load during the can swaging process in rechargeable battery manufacturing, leading to defects and damage due to direct mechanical connection between the driving and driven parts, which results in misalignment and displacement.
Innovation Solution
A swaging apparatus with a shock-absorbing part connected between the rod and collet, absorbing excessive loads and allowing smooth operation by using a shock-absorbing mechanism, including a cylinder, piston, and elastic members like disc springs, to manage swaging loads effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a rod of the driving part is directly connected to a collet of the driven part to transmit swaging load, then the swaging load can be transmitted efficiently, but abnormal operation or excessive load may cause misalignment, displacement, and damage to the collet and housing
Solution Approach 1:
A shock-absorbing part is introduced as an intermediary component between the rod of the driving part and the collet of the driven part. This shock-absorbing part includes a shock-absorbing member that can elastically deform to absorb excessive loads, and a friction surface that provides controlled friction to maintain alignment while allowing relative movement during abnormal operations, thus preventing direct transmission of harmful forces
2Strength
If a rigid body mechanical connection is used between the driving part and driven part, then the structure is simple and strong, but changes in rod stroke and displacement differences cause defects in the swaged can or damage to components
Solution Approach 1:
The connection between the driving part and driven part is transformed from a rigid static structure to a dynamic structure with controlled flexibility. The shock-absorbing part allows relative movement and elastic deformation under excessive load, while the friction surface maintains controlled engagement, enabling the system to adapt to stroke variations and displacement differences without causing precision defects
3Reliability
If the shock-absorbing part allows relative movement between rod and collet, then excessive loads are absorbed and alignment is maintained, but the device complexity increases
Solution Approach 1:
The shock-absorbing member functions as a flexible element that can elastically deform to absorb shocks, while the friction surface provides a simple yet effective mechanism for controlled engagement and alignment maintenance. This combination achieves reliable protection against abnormal operations without requiring complex mechanisms
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 apparatus ensures smooth swaging of the can even during abnormal operations by absorbing excessive loads, preventing damage to the collet and housing, and maintaining precise alignment, thus enhancing the swaging process efficiency.
Implementation Method 1
a first elastic member disposed inside the cylinder. The first elastic member is disposed between the piston and a wall of the cylinder to support the piston. The first elastic member may include a plurality of disc springs
Data Source
AI summary
Provided is a swaging apparatus for smoothly swaging a can of a rechargeable battery by absorbing excessive load above a predetermined level between a rod of a driving part and a collet of a driven part. A swaging apparatus according to an exemplary embodiment includes a collet housing for swaging a can including an electrode assembly, a collet for swaging an opening of the can inserted in the collet housing, a shock-absorbing part disposed in the collet housing and connected to the collet, and a rod connected to the shock-absorbing part to transmit a swaging load to the collet through the shock-absorbing part.