Suction Hood Recess Layout for Faster Tool Changes
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Solution Overview
Problem
Existing dust hoods for machine tools with rotating tools, such as grinding or cutting tools, complicate the attachment and detachment processes, as well as tool changes, and often require complex verification of proper attachment.
Innovation Solution
A suction hood design with a first recess larger than the machine tool's flange and a second recess accommodating the clamping element, allowing for external attachment of the clamping nut, and a one-piece base body with side walls positioned close together to facilitate easy tool and hood attachment and detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional dust hoods are designed with hinged components, then the hood can cover the tool effectively, but the attachment and detachment process becomes complicated and time-consuming
Solution Approach 1:
The dust hood is divided into two separate parts: a stationary hood body that remains attached to the machine tool, and a removable tool holder that can be easily detached and reattached. This segmentation eliminates the need for complex hinged mechanisms while maintaining effective dust coverage.
Solution Approach 2:
The tool holder is extracted as a separate removable component from the dust hood structure. This allows the tool holder to be easily detached and reattached without moving the entire dust hood or complex hinged mechanisms, significantly simplifying the attachment and detachment process.
2Productivity
If the dust hood is designed to fully enclose the tool, then dust collection is effective, but tool changes become complicated and time-consuming
Solution Approach 1:
The enclosure is segmented into a stationary hood body and a removable tool holder. The tool holder can be quickly detached from the hood body, allowing rapid tool changes without requiring the entire enclosed structure to be opened or disassembled.
Solution Approach 2:
The tool holder is pre-positioned with the tool inside the hood body. When a tool change is needed, the entire pre-assembled tool holder unit is simply detached and replaced, eliminating the need to manually handle tools outside the enclosed structure and maintaining dust containment throughout the process.
3Reliability
If the dust hood structure is made complex to ensure proper attachment, then dust collection effectiveness is maintained, but the verification process becomes time-consuming
Solution Approach 1:
The tool holder and hood body incorporate self-verifying attachment features such as positioning elements and engagement indicators. When the tool holder is attached to the hood body, the design automatically ensures proper alignment and connection, allowing the operator to visually confirm correct attachment without complex verification procedures.
Data Source
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AI summary
The invention relates to a suction hood (1) for a power tool (2) having a rotating tool (10), in particular a grinding or separating tool, for collecting and conducting away dust generated during the use of the power tool (2), containing - a first side wall (11) with a first cutout (19), - a second side wall (12) with a second cutout (28), and - a suction duct (13) connected to the first and second side walls (11, 12), wherein the diameter of the first cutout (19) is greater than the diameter of a flange (7) of the power tool (2) such that the first cutout (19) is able to be positioned around the flange (7), and the diameter of the second cutout (28) is greater than the diameter of a clamping element (9) which serves to releasably fasten the tool (10) to a spindle (8) of the power tool (2), such that the clamping element (9) is able to be received in the second cutout (28), and wherein the first and second side walls (11, 12) are positioned at a distance (Z) from one another which is shorter than the length (L) of the spindle (8).