Compact Riveting Tool Housing With Bayonet Lock Support
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Solution Overview
Problem
Existing riveting devices are bulky, making it difficult to reach hard-to-reach riveting points and complicating handling.
Innovation Solution
A riveting device with a compact design featuring a bayonet lock connection between the tool housing and support structure, allowing for a more compact axial arrangement and easier handling, and incorporating a light guide for improved illumination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional retaining fixture with bearing cup and thrust bearing is used to support the tool housing, then the riveting device achieves reliable structural support and load bearing, but the device becomes bulky and difficult to handle
Solution Approach 1:
The patent extracts and eliminates the bearing cup and thrust bearing from the support structure. Instead of using these separate bearing components, the invention integrates the support function directly into the support structure itself, which is retained by the bayonet lock connection. This removal of unnecessary components reduces the axial length and improves compactness while maintaining the load-bearing capability through the bayonet lock's structural design.
Solution Approach 2:
The patent merges the support function with the bayonet lock retaining fixture. The support structure is directly retained by the bayonet lock connection without requiring separate bearing components. This integration combines the retaining and supporting functions into a single unified structure, reducing the overall axial length and improving handling ease while maintaining structural integrity and load-bearing capacity.
2Device complexity
If a traditional retaining fixture with multiple components is used, then the riveting device achieves stable structural support, but the device complexity increases and compactness is reduced
Solution Approach 1:
The patent removes the bearing cup and thrust bearing components from the support structure. By extracting these separate bearing elements, the invention simplifies the overall structure to just the support structure retained by the bayonet lock connection. This reduction in component count directly lowers device complexity and reduces the axial length, achieving both goals simultaneously.
Solution Approach 2:
The bayonet lock connection is designed to perform multiple functions: it serves as both the retaining fixture and the support structure holder. This multi-functional design eliminates the need for separate bearing components, reducing both structural complexity and axial length. The single bayonet lock mechanism provides both retention and support functions, demonstrating universal functionality that addresses the contradiction between complexity and compactness.
Data Source
AI summary
A riveting device has a device housing, a riveting tool and a drive for actuating the riveting tool. The riveting tool has a mouthpiece and a mandrel holder that can be moved relative to the mouthpiece along an operative axis. The drive has a spindle gear with a threaded spindle, and a spindle nut operatively connected thereto. The threaded spindle is operatively connected to the mandrel holder for movement along the operative axis. A support structure provides axial support of the spindle nut. A tool housing is axially supported on the mouthpiece and axially supported on the support structure via a flange. The mandrel holder is received axially moveably in the tool housing. A supporting structure supports the tool housing. The tool housing is held on the supporting structure by a retaining structure. The retaining structure and the supporting structure are connected to each other via a bayonet lock.