Axial Pressing Attachment With Pivotable Rings And Lever Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing press attachments for axial pressing of workpieces are either bulky, heavy, and difficult to handle, especially in confined spaces, and they exert high stress on workpieces due to radial forces, which is problematic for softer or brittle materials.
Innovation Solution
A compact press attachment with pivotable press ring halves and a connecting element that uses a lever effect to generate high pressing forces with a low applied force, allowing for axial pressing with reduced stress on workpieces and improved handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If axial pressing tools are used to directly apply axial compression force, then stress on workpiece material is reduced, but the tool takes up large assembly space and is very heavy
Solution Approach 1:
The pressing tool is divided into two separate pressing rings that can be applied independently to the workpiece. This segmentation allows each ring to be compact and lightweight while collectively providing the necessary axial pressing function through their coordinated movement toward each other.
Solution Approach 2:
The patent introduces an intermediary mechanism where the two pressing rings act as mediators between the pressing force and the workpiece. By positioning these rings on opposite sides of the workpiece and moving them toward each other, the system achieves axial pressing without requiring a single large, heavy tool.
2Force
If a separate press machine is used with the press attachment, then axial pressing force is achieved, but the overall dimensions and weight remain very large
Solution Approach 1:
The patent merges the pressing rings with the fitting components themselves - the first pressing ring is integrated with the base body and the second pressing ring with the sliding sleeve. This integration eliminates the need for separate pressing machines and reduces overall assembly space while maintaining axial pressing capability.
Solution Approach 2:
The pressing rings serve multiple functions: they act as both pressing elements and structural components of the fitting assembly. This multi-functionality reduces the need for additional dedicated pressing equipment, thereby reducing overall volume and weight.
3Volume of moving object
If radial pressing force is converted to axial movement via inclined contact surfaces, then compact tool design is achieved, but high stress is exerted on workpiece material
Solution Approach 1:
Instead of converting radial force to axial movement through inclined surfaces, the patent inverts the approach by directly applying axial pressing force through the movement of pressing rings toward each other along the workpiece axis. This eliminates the need for force conversion and the associated high stress on materials.
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 solution enables efficient axial pressing of workpieces, particularly in confined spaces, with reduced stress on materials and improved handling, facilitating the use of softer or brittle materials like plastics.
Implementation Method 1
the connecting element connects the first press ring and the second press ring to one another in an articulated manner... when a pressing force is applied to the shoulder sections, a pressing force can also be generated in the receiving area via a lever effect with a pivot point formed by the connecting element
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to a press attachment (2) for permanently joining workpieces by axial pressing using a press machine, comprising a first press ring (4), a second press ring (6), and a connecting element (14) which connects the first press ring (4) and the second press ring (6), wherein the press rings (4, 6) each have at least one extension section (22, 24) for a press tool, the extension sections (22, 24) are arranged on the side of the press rings (4, 6) facing away from the other press ring and spaced apart from the connecting element (14), and a receiving area (12) for workpieces is formed by the press rings (4, 6), which is arranged between the connecting element (14) and the extension sections (22, 24).The invention further relates to a system for producing a permanent workpiece connection with a press attachment (2) according to the invention, with a fitting (52) comprising a support body (68) and a base body (66), with a clamping ring (58) and with a sliding sleeve (54). The invention further relates to a method for producing a permanent connection with a pipe end (56) using a system according to the invention.