Deburring Tool Pusher Structure for Distal-End Spring Replacement
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Solution Overview
Problem
Conventional deburring tools require disassembly to replace the elastic body, which is inconvenient and time-consuming, especially when the elastic body needs to be changed based on the material of the workpiece or due to product lifetime.
Innovation Solution
A processing tool design that allows for the detachable attachment and replacement of the advance-retract spring from the distal end, featuring a body with a cylinder chamber, slide groove, anti-rotation body, and a pusher with a retaining body and openable elastic body, enabling easy access and replacement of the spring without disassembling the tool.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the elastic body is replaced from the distal end, then the replacement operation is simplified and user effort is reduced, but the structure becomes more complex requiring additional components like the openable elastic body and lever mechanism
Solution Approach 1:
The pusher is divided into separable components: the pusher body and the retaining body that can be detached from each other. The retaining body can be removed from the distal end while the pusher body remains in the cylinder chamber, allowing the elastic body to be replaced without removing the entire pusher assembly.
Solution Approach 2:
The lever acts as an intermediary mechanism that translates radial inward movement into the opening of the elastic body and detachment of the retaining body. This intermediary mechanism enables simple distal-end operation while managing the complexity of the release mechanism.
2Ease of manufacture
If the pusher is made detachably attachable, then the advance-retract spring can be replaced easily from the distal end, but the connection structure between pusher and tool becomes more complex
Solution Approach 1:
The pusher assembly is segmented into the pusher body and retaining body that can be independently attached and detached. The retaining body with retaining grooves provides a simple interface for attaching the elastic body, while the overall pusher can be easily connected to and disconnected from the tool.
Solution Approach 2:
The retaining body serves multiple functions: it retains the elastic body through radial protrusion into the slide groove, provides attachment/detachment capability from the distal end, and interfaces with the pusher body. This multi-functionality reduces the need for separate specialized components.
3Stability of the object's composition
If the retaining body protrudes radially into the slide groove, then the pusher positioning is improved and anti-rotation is enhanced, but the release mechanism becomes more complex requiring the openable elastic body
Solution Approach 1:
The retaining body transitions from a fixed state (protruding radially into the slide groove for stable positioning) to a movable state (when the elastic body opens and the retaining body can be pulled out). This dynamic capability allows the same structure to provide both stable positioning during operation and easy release when needed.
Solution Approach 2:
The openable elastic body is pre-configured to urge the retaining body radially outward, creating a preliminary force that opposes the radial protrusion into the slide groove. When the lever is actuated, this pre-stored elastic energy is released to automatically push the retaining body out of the groove, simplifying the release mechanism.
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
Facilitates simple and efficient replacement of the advance-retract spring, reducing user effort and improving operational convenience by allowing the pusher to be detachably attachable, thus adapting to different workpiece materials and extending tool lifespan.
Implementation Method 1
an advance-retract spring disposed on a basal end of the pusher in the cylinder chamber, the advance-retract spring configured to urge the pusher toward the distal end
Implementation Method 2
an openable elastic body configured to urge the retaining body radially outward
Data Source
Figure 1
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AI summary
A processing tool (10) includes: a body (13) including a cylinder chamber (13f) having an opening toward a distal end, and a slide groove (13j) extending parallel to the cylinder chamber (13f); a tool (25) received in the cylinder chamber (13f) in a detachably attachable manner, and having an anti-rotation groove (25b) on an outer periphery; an anti-rotation body (15) disposed in the body (13) and advance to or retract from the cylinder chamber (13f); a pusher (30) disposed in the cylinder chamber (13f) in a reciprocable manner, and urges the tool (25) toward the distal end, the pusher (30, 130) including, a pusher body (32), a retaining body (39) received in the slide groove (13j), and an advance-retract spring (17) disposed on a basal end of the pusher (30) in the cylinder chamber (13f), and urge the pusher (30) toward the distal end.