Punch Unit Adapter With Tool-Free Locking for Holder Compatibility
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Solution Overview
Problem
The metal sheet machining industry faces inefficiencies due to the presence of multiple incompatible punch systems from different manufacturers, leading to a need for a wide range of punch holders and increased costs, as well as prolonged stopping times for punching machines due to complex and expensive punch holder components.
Innovation Solution
A punch unit comprising a punch tip holder and adapter element with locking means, allowing the same set of punch tips to be mounted on different punch holders, enabling quick and reliable interchangeability and reducing the need for multiple punch holders.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple incompatible punch systems from different manufacturers are used, then each manufacturer can provide specialized punch holders for specific operations, but the number of punch holders required increases significantly and costs increase
Solution Approach 1:
The adapter element is designed with a universal interface that can accommodate multiple types of punch holders from different manufacturers. The adapter includes a mounting portion that interfaces with various punch holder configurations and a connecting portion that standardizes the connection to the punch tip, allowing one adapter design to serve multiple punch holder types.
Solution Approach 2:
The adapter element acts as an intermediary component between the punch holder and the punch tip. It mediates the connection by providing a standardized interface that translates between different punch holder configurations and a uniform punch tip mounting mechanism, enabling compatibility without modifying the original punch holders or tips.
2Reliability
If complex punch holder components are used to ensure reliable punching operations, then the punching force can be effectively transmitted, but the stopping times of the punching machine increase due to complex assembly and replacement procedures
Solution Approach 1:
The system is segmented into distinct modular components: the punch holder (which remains on the machine), the adapter element (which can be quickly exchanged), and the punch tip (which can be independently replaced). This segmentation allows the complex force transmission function to be maintained in the punch holder while enabling quick replacement of only the adapter or tip when needed.
Solution Approach 2:
The connecting portion of the adapter element incorporates dynamic fastening and release mechanisms that enable quick attachment and detachment of the punch tip. The locking mechanism can be rapidly engaged and disengaged, allowing operators to quickly change punch tips without complex assembly procedures, thus reducing machine stopping time while maintaining reliable force transmission during operation.
3Adaptability or versatility
If multiple specialized punch holders are maintained to support different punch operations, then all machining requirements can be met, but the costs increase due to maintaining a wide range of punch holders
Solution Approach 1:
The adapter element provides universal compatibility with multiple punch holder types while maintaining the ability to perform different machining operations through punch tip selection. This eliminates the need to manufacture and maintain multiple specialized punch holders for each operation, as a single adapter design can work with various punch holders and different punch tips to achieve the same machining capabilities.
Solution Approach 2:
Instead of creating multiple unique punch holder designs for different operations, the invention uses a standardized adapter template that can be replicated and applied to various punch holder configurations. This copying approach allows the same adapter design to be used across different punch holder types, reducing manufacturing complexity and cost while maintaining operational versatility.
4Reliability
If punch tips are firmly fixed to punch holders for reliable operation, then the punching force is effectively transmitted, but the replacement time of punch tips increases
Solution Approach 1:
The connecting portion incorporates a dynamic fastening system that provides firm fixation during operation through locking mechanisms, yet allows rapid release when replacement is needed. The locking features engage positively to ensure reliable force transmission, while the release mechanism can be quickly actuated to disengage the lock, enabling fast punch tip replacement without compromising operational reliability.
Solution Approach 2:
The connection system is segmented into separate fastening and locking components that can be independently engaged and disengaged. This allows the punch tip to be firmly secured during punching operations through multiple locking points, while the segmented design enables selective release of these locks for quick replacement without requiring complete disassembly of the entire assembly.
Data Source
AI summary
A punch unit associable with a respective punch holder of a punching machine to form a punch assembly comprises a punch tip holder mountable on the respective punch holder and a punch tip housed in, and connected to, the punch tip holder in an assembled configuration; the punch tip holder includes a connecting element coupled to the punch tip; an adapter element shaped and sized so as to be inserted and housed in the respective punch holder and provided with an inner cavity suitable to house the connecting element with the punch tip in the assembled configuration; a locking device housed in the adapter element, which can be operated manually without tools and arranged for locking or unlocking the connecting element with the punch tip to or from the adapter element.