Crimping Press Bearing Layout for Precise Axial and Radial Load Control
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Solution Overview
Problem
Existing crimping presses face issues with precision and repeatability due to inadequate bearing systems that cannot absorb axial forces, leading to suboptimal crimping processes, especially with certain cable types.
Innovation Solution
A crimping press design incorporating a bearing system that combines at least one ball bearing and one needle bearing to absorb axial and radial forces, respectively, reducing bearing clearance and friction losses, thereby enhancing precision and compactness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a single needle bearing is used in the bearing system, then the device complexity is reduced and installation space is minimized, but the bearing system cannot absorb axial forces leading to increased bearing clearance and reduced crimping precision
Solution Approach 1:
The patent combines a ball bearing and a needle bearing into a single integrated bearing system. The ball bearing absorbs axial forces while the needle bearing handles radial forces, creating a composite bearing system that achieves both precision and compactness without increasing overall device complexity
2Manufacturing precision
If a ball bearing is used to absorb axial forces, then crimping precision is improved, but the installation space and device complexity increase
Solution Approach 1:
The ball bearing and needle bearing are merged into a compact integrated assembly where the needle bearing is positioned within the same housing as the ball bearing. This merging allows the system to absorb both axial and radial forces while maintaining a compact footprint that does not significantly increase installation space
Solution Approach 2:
The needle bearing is nested within the same housing structure as the ball bearing, with both bearings sharing a common mounting space. This nesting arrangement allows the bearing system to handle multiple force directions without proportionally increasing the installation volume
3Volume of moving object
If a floating bearing system with single needle bearing is used, then the device is compact, but repeatability and precision of crimping process deteriorate due to inability to absorb axial forces
Solution Approach 1:
The integrated bearing system merges the axial force absorption capability of the ball bearing with the radial force absorption of the needle bearing, maintaining device compactness while significantly improving crimping repeatability through comprehensive force management
4Force
If bearing clearance is increased to accommodate force absorption requirements, then the bearing system can handle axial forces, but friction losses increase and precision decreases
Solution Approach 1:
The combined bearing system allows both ball and needle bearings to operate with optimized clearances for their respective force directions, reducing overall friction losses while maintaining the ability to absorb axial forces through the ball bearing component
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 combination of ball and needle bearings improves the precision and repeatability of the crimping process by effectively managing axial and radial forces, leading to a more compact and cost-effective crimping press design with reduced installation space requirements.
Implementation Method 1
The first bearing system comprises at least one ball bearing and at least one needle bearing. By means of the at least one ball bearing, it is ensured that the bearing system can now also absorb axial forces.
Implementation Method 2
At least one needle bearing absorbs the radial forces and is much more compact than a ball bearing with a comparable radial load capacity. This significantly reduces the friction losses in the crimping drive device
Data Source
AI summary
The invention relates to a crimping press 20 with a first pressing jaw 60 and with a crimping drive device 26, wherein the crimping drive device 26 comprises a drive element 50 and a drive shaft 44 for moving the drive element 50, and at least one rotatable shaft 42 for moving the first pressing jaw 60, and at least one first bearing system 41, on which the rotatable shaft 42 is mounted rotatably. The first bearing system 41 comprises at least one ball bearing and at least one needle bearing. Furthermore, the invention relates to a method for producing a crimped connection by way of the crimping press, and the use of at least one first bearing system 41 in the crimping drive device 26 of the crimping press 20.