Adjustable Upsetting Die for Multi-Rivet Fastening
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Solution Overview
Problem
Existing fastening methods require multiple apparatus and interruptions to change upsetting dies for different rivet dimensions, hardnesses, and material combinations, leading to inefficiencies and increased production costs.
Innovation Solution
A control apparatus adjusts the upsetting die volume automatically based on stored information and feedback, allowing the same fastening apparatus to handle multiple rivet types and material combinations without interruptions, by changing the die volume rapidly between fastener insertions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate fastening apparatus are used to handle different rivet types, then the ability to accommodate different rivet dimensions and material combinations is improved, but the device complexity and production costs increase
Solution Approach 1:
The upsetting die is designed with adjustable volume capability, allowing a single fastening apparatus to perform multiple functions by adapting to different rivet dimensions and material combinations. The control apparatus automatically adjusts the upsetting die volume based on stored information about the specific fastening task, enabling one device to replace multiple specialized devices.
Solution Approach 2:
The upsetting die volume is made dynamically adjustable rather than fixed. The control apparatus modifies the upsetting die volume in real-time based on the requirements of different rivet types and material combinations, allowing the system to adapt flexibly without physical reconfiguration or replacement of components.
2Manufacturing precision
If the upsetting die is changed manually for different rivet types, then the manufacturing precision for different fastening requirements is improved, but the loss of time due to interruptions increases
Solution Approach 1:
The manual mechanical process of removing and installing different upsetting dies is replaced with an automated control system. The control apparatus electronically adjusts the upsetting die volume based on stored parameters for different rivet types, eliminating the need for physical die changes and associated time losses while maintaining precise upsetting control.
Solution Approach 2:
Information about the optimal upsetting die volume for different rivet types and material combinations is pre-stored in the control apparatus. Before each fastening operation, the control system retrieves the appropriate parameters and configures the upsetting die volume in advance, ensuring manufacturing precision without requiring manual intervention or time-consuming die changes.
3Adaptability or versatility
If multiple fastening apparatus are deployed to handle different workpiece locations, then the adaptability to different fastening requirements is improved, but the quantity of peripheral equipment and production costs increase
Solution Approach 1:
A single fastening apparatus equipped with an adjustable-volume upsetting die and control system can handle multiple workpiece locations and different fastening requirements. The control apparatus stores information about various fastening configurations and automatically adjusts the upsetting die volume accordingly, eliminating the need for multiple specialized apparatus and reducing peripheral equipment requirements.
Data Source
AI summary
A fastening method comprising using a control apparatus to select a first upsetting volume of an upsetting die, using a punch to push a first fastener into a workpiece and using the upsetting die to upset the first fastener, then using the control apparatus to select a second upsetting volume of the upsetting die, using the punch to push a second fastener into a workpiece and using the upsetting die to upset the second fastener, or using the punch and the upsetting die to form a clinch joint.