Piercing Tool Holder Clamping Structure for Fast Replacement
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Solution Overview
Problem
The existing soil working devices face challenges in simplifying the replacement of worn-out piercing tools, which often require complex and time-consuming processes due to broken clamping bolts and the need for additional machining to remove stuck studs.
Innovation Solution
A tool holding device with a fastening device that includes a fastening-receiving region and a clamping surface, allowing easy clamping of piercing tools between the clamping surface and the tool-receiving-cavity, facilitated by a recess and a fastener with a helical element and nut, enabling secure fastening without additional machining.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional clamping bolts are used to secure piercing tools, then the tools can be fastened to the tool holding device, but the clamping bolts may break and require time-consuming drilling out for removal
Solution Approach 1:
The fastening device is segmented into a modular structure with a receiving region, clamping surface, and fastener that can be independently replaced. When the fastener breaks, only the fastener itself needs replacement rather than the entire fastening device, eliminating the need to drill out broken studs from the tool holder.
Solution Approach 2:
The fastening device is designed as a removable component that can be extracted from the tool holder through a recess. The broken fastener can be easily removed from the receiving region without damaging the tool holder, allowing quick replacement without drilling operations.
2Reliability
If multiple fastening devices are used per tool-receiving-cavity, then the piercing tools can be securely fastened, but the complexity of the tool holding device increases
Solution Approach 1:
Multiple fastening functions are merged into a single integrated fastening device structure. The receiving region, clamping surface, and fastener work together as one unit that provides secure fastening equivalent to multiple separate fasteners, thereby reducing overall device complexity.
Solution Approach 2:
The single fastening device performs multiple functions: the receiving region accommodates the fastener, the clamping surface provides the clamping action, and the fastener secures the piercing tool. This multi-functional design replaces what would traditionally require multiple separate fastening components.
3Ease of operation
If a recess with intersecting openings is provided for the fastening device, then the fastening device can be easily inserted and positioned, but the tool base body structure becomes more complex
Solution Approach 1:
The fastening device is nested within a recess in the tool base body, with the receiving region positioned to intersect with the tool-receiving-cavity. This nested arrangement allows easy insertion through openings while maintaining a compact overall structure that doesn't significantly increase complexity.
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
Simplifies the replacement process of piercing tools, reduces the likelihood of tools being released during operation, and eliminates the need for drilling out broken studs, thus enhancing maintenance efficiency.
Implementation Method 1
The fastener can comprise a helical element and a nut
Data Source
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AI summary
A Tool holding device (1) for piercing tools (2) of a soil working device (4) for creating cavities in a soil (5) is provided, with - at least one basic tool body (6) which can be coupled with a machine frame (30) of the soil working device (4), - several tool-receiving-cavities (10) in the basic tool body (6), into each of which a piercing tool (2) can be inserted, whereby the cross-sections of the tool-receiving-cavity (10) are adapted to the cross-sections of the piercing tools (2) to be received, - at least one fastening device (12) per tool-receiving-cavity (10), with which the piercing tools (2) can be fastened in the tool-receiving-cavity (10), wherein the at least one fastening device (12) has a fastening-receiving region (14) into which the respective piercing tool (2) can be introduced when it is inserted into the tool-receiving-cavity (10), wherein, when the respective fastening device (12) is tightened, at least one clamping surface (16) of the respective fastening-receiving region (14) can be pressed against at least one piercing tool (2) introduced into the respective fastening-receiving region (14) in such a way that the introduced piercing tool (2) can be clamped between the clamping surface (16) of the respective fastening-receiving region (14) and at least one surface (18) of the respective tool-receiving-cavity (10).