Tool Holding Device Dovetail Base Counterforce
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Solution Overview
Problem
The existing tool holding devices for road planers face issues with the connection strength between the base and the block, leading to frequent replacements and high costs due to the stress from tough processed materials, which results in wear and potential breakage of the block.
Innovation Solution
A tool holding device with a non-obtuse angle between the shoulder wall and the countering wall, a dovetail track for enhanced mechanical strength, and a groove to prevent fragment accumulation, along with a detachable sleeve to reduce abrasion and extend the device's lifespan.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the block is secured on the base through a fastening member, then the tool can be held and operated, but the connection strength is insufficient under counterforce from tough processed materials
Solution Approach 1:
The base is divided into multiple walls (first wall, second wall, third wall, fourth wall) that collectively form the receiving portion. This segmentation distributes the counterforce across multiple structural elements rather than concentrating it at a single fastening point, enhancing overall connection strength and reliability.
Solution Approach 2:
The receiving portion combines multiple structural features (walls, bottom surface, fastening hole) into a composite configuration that integrates both mechanical fastening and geometric constraint functions, creating a more robust connection system than a single fastening member alone.
2Duration of action of stationary object
If the block is secured through a simple fastening member, then the device structure remains simple, but the block wears out or breaks after long operation periods
Solution Approach 1:
The connection system is segmented into multiple functional components: the receiving portion with its four walls and bottom surface provides geometric constraint, while the fastening member provides mechanical fastening. This segmentation allows each component to specialize in a particular function, enhancing durability without requiring excessive complexity in any single element.
Solution Approach 2:
The receiving portion serves multiple functions simultaneously: it provides geometric constraint through its walls, supports the fastening member, and distributes counterforce across its structure. This multi-functionality extends the block's service life without adding separate dedicated components for each function.
3Productivity
If fragments accumulate during operation, then the chisel performance deteriorates, but no structure is provided to manage fragment removal
Solution Approach 1:
The harmful fragments are extracted from the working area through the ejection hole in the bottom surface of the receiving portion. This extraction mechanism removes the harmful factor (fragments) that would otherwise accumulate and deteriorate chisel performance, maintaining productivity without requiring complex fragment management systems.
Data Source
AI summary
A tool holding device is disclosed, and the tool holding device includes a base, a block, and a fastening member for securing the block. The base includes a receiving portion defined between a countering wall and a shoulder wall, a surface defined adjacent to the shoulder wall perpendicularly and away from the countering wall, a penetrated hole defined on the countering wall, and a positioning hole communicating with the penetrated hole. The block includes a holding portion held in the receiving portion, a handle received in the penetrated hole, and a holding hole for holding a chisel. The countering wall and the shoulder wall define an angle less than or equal to 90 degrees. Therefore, the counterforce bearing of the base and block are both enhanced to raise the strength of the tool holding device.