Swaging Tool With Movable Pliers for Burr-Free Stamp Forming
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Solution Overview
Problem
Existing swaging processes require time-consuming and costly trimming operations to remove burrs and correct external shapes, complicating the formation of final parts with complex angles and undercuts.
Innovation Solution
A swaging tool with a lower unit and upper unit, featuring movable pliers and an upper die, allows for synchronized closure of the pliers and swaging to partially form the final shape, reducing or eliminating the need for burr removal and external shape corrections, and enabling the production of relief patterns directly on the metal movement-blank.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional swaging process with fixed lower die is used, then the stamping operation is simple, but time-consuming and costly trimming operations are required to remove burrs and correct external shapes
Solution Approach 1:
The lower die is transformed from a fixed component to a dynamic one through the pliers mechanism. The two arms of the pliers are mounted movable between an opening position and a closing position, allowing the lower die geometry to change during the stamping operation. This dynamic adaptation enables the lower die to partially form the final shape of the metal movement-blank, reducing the need for subsequent trimming operations and improving overall productivity.
2Device complexity
If traditional swaging process is used, then the equipment is simple, but additional trimming and correction steps are required
Solution Approach 1:
The invention merges the functions of the lower die and the holding mechanism into a single integrated pliers assembly. The two arms of the pliers both serve as clamping elements to hold the metal movement-blank and as forming elements that define the upper region of the bed and create the lower die geometry. This consolidation of functions reduces the number of separate components and simplifies the manufacturing process while enabling partial formation of the final shape.
3Productivity
If traditional swaging with separate forming and holding operations is used, then each operation is straightforward, but multiple operations increase overall process time and cost
Solution Approach 1:
The pliers assembly serves multiple functions simultaneously: it holds the metal movement-blank during stamping, defines the upper region of the bed, creates the lower die geometry, and enables partial formation of the final shape. The two arms of the pliers act as both clamping elements and forming elements. This multi-functionality allows a single stamping operation to achieve both forming and holding objectives, reducing the number of separate operations required and improving productivity.
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 process simplifies the stamping operation, saving time and reducing costs by minimizing burr removal and external shape corrections, while efficiently forming complex geometries such as flutes and relief patterns on the final part.
Implementation Method 1
Industrial stamping consists of plastically distorting a metal object (without returning to the original shape)
Data Source
AI summary
A swaging tool (1) forming a stamp, including a lower unit (2) and an upper unit, the lower unit (2) forming a bed to receive the metal movement-blank (12), the upper unit (4) being equipped with an upper die, to swage the metal movement-blank (12) in place in the bed of the lower unit (2), and mounted movable along a movement axis. The lower unit (2) includes a pliers (14) equipped with two arms (16A2, 16B2) mounted movable, in a perpendicular plane to said movement axis, between an opening position and a closing position wherein the two arms are moved closer together and then defining a part of said bed for receiving the metal movement-blank (12) and, between them, an opening (18), the dimensions of which are less than the corresponding dimensions of an upper part (12A) and a lower part of the metal movement-blank (12).