Quick-Release Punch Tip Assembly for Faster Tool Changes
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Solution Overview
Problem
Conventional punch assemblies require frequent maintenance and modification, such as sharpening or replacing punch tips, which is time-consuming and inefficient due to the complexity of existing configurations.
Innovation Solution
The punch assembly incorporates a retain-and-release member with a spring pack and actuation interface, allowing for easy removal and replacement of punch tips without disassembling the assembly, facilitated by a spring pack and actuation interface that enables self-seating and quick release mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If conventional punch assembly configurations are used, then structural stability and reliability are maintained, but maintenance and modification time increases significantly
Solution Approach 1:
The punch assembly is divided into separate functional components: a punch holder body and a removable punch tip. The punch tip can be independently removed and replaced without disassembling the entire punch assembly, allowing rapid maintenance and modification while maintaining the structural integrity of the holder body.
Solution Approach 2:
The punch tip is extracted as a separate, removable component from the punch assembly. This extraction allows the tip to be easily removed for sharpening or replacement without affecting the remaining assembly, directly reducing maintenance time while managing complexity through modular design.
2Productivity
If punch tips are frequently replaced or sharpened, then tool effectiveness is maintained, but productivity decreases due to time-consuming modifications
Solution Approach 1:
The punch tip connection mechanism transitions from a fixed or permanently attached state to a dynamic, easily changeable state. The removable tip design allows rapid transition between different tip configurations, making frequent replacements operationally simple and maintaining high productivity.
Solution Approach 2:
The punch holder assembly is designed to facilitate self-service maintenance, where operators can quickly remove and replace punch tips without requiring specialized tools or complex disassembly procedures, thereby maintaining ease of operation during frequent tool changes.
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
This configuration significantly reduces the time and effort required for maintenance and modification, enabling faster tool changes and adjustments, thereby increasing productivity in punch press operations.
Implementation Method 1
a spring pack and actuation interface, allowing for easy removal and replacement of punch tips
Data Source
Figure 1A~1B
Figure 1C~1D
Figure 1E
AI summary
A retain-and-release member, which is coupled to a punch holder of a punch assembly, engages a punch tip against an end of the holder, such that a working portion of the tip extends from the end. A punch guide sidewall of the assembly includes an aperture aligned with an actuation interface of the retain- and-release member, when the punch holder and the engaged punch tip are slidably engaged within a guide bore formed by the punch guide sidewall. The aperture provides access for applying a force, to the actuation interface, in order to disengage the retain-and-release member from the punch tip, while the punch holder remains within the guide bore of the assembly. Following the removal, the same punch tip, or another, may be inserted into the guide bore and into engagement with the retain-and-release member.