Chamfer Device One-Touch Depth Adjustment Mechanism
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Solution Overview
Problem
Existing beveling machines face challenges in accurately and quickly controlling the depth of bevel cut on large workpieces, with prior solutions either lacking precision, posing safety risks to operators, or being cumbersome and difficult to manufacture.
Innovation Solution
A beveling machine design featuring a movable spline shaft, a bevel cut depth controlling unit with a spring housing and elastic spring, and location setting pins that allow for one-touch operation and automatic locking of the bevel cut depth, ensuring safety by preventing operator contact with the cutter and enabling immediate control during operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a rack is used to adjust the depth of bevel cut as in prior art 1, then the depth can be adjusted according to operator's setting, but the accuracy is low and it takes a long time to control the depth, and a special locking control unit needs to be tightened
Solution Approach 1:
The patent changes the control parameter from continuous rack adjustment to discrete position settings marked on the guide plate (e.g., 0.1mm, 0.2mm intervals). This allows precise depth control through simple position selection rather than manual measurement and adjustment, resolving the contradiction between ease of operation and depth control accuracy
Solution Approach 2:
The guide plate with pre-marked position settings performs the measurement and positioning function automatically. When the operator aligns the cutter shaft with a marked position, the depth is automatically determined without requiring manual measurement or complex locking mechanisms, eliminating the need for special locking control units
2Ease of operation
If the bevel cut depth controlling unit is pulled downwardly toward the cutter as in prior art 2, then the depth can be controlled, but the operator's hand may be injured if the hand comes in contact with the cutter
Solution Approach 1:
Instead of pulling the control unit downward toward the cutter (dangerous direction), the patent inverts the motion direction by pushing the control unit upward or sideways away from the cutter. This reversal of control direction maintains operational ease while eliminating the safety hazard of hand-cutter contact
3Reliability
If a special fixed spline adapter is used to maintain setting condition as in prior art 2, then the depth setting can be maintained, but it is difficult to manufacture and the size is somewhat cumbersome
Solution Approach 1:
The guide plate serves multiple functions: it provides depth positioning through marked positions, acts as a guide for the cutter shaft, and maintains settings through its rigid structure. This multi-functional design eliminates the need for separate special fixed spline adapters, simplifying manufacturing while maintaining setting reliability
Solution Approach 2:
The patent merges the positioning function, guiding function, and setting maintenance function into a single integrated guide plate structure. This consolidation eliminates the need for separate complex adapter components with special fixed splines, reducing manufacturing difficulty and overall size while maintaining reliable depth setting
4Manufacturing precision
If the beveling tool is separated from the workpiece to control the depth as in prior art 2, then the depth can be controlled, but it takes a long time to control the depth of bevel cut
Solution Approach 1:
The guide plate with pre-marked depth positions is prepared in advance, allowing the operator to quickly select and set the desired depth by simply aligning the cutter shaft with the appropriate mark. This preliminary preparation of position markers eliminates the need for time-consuming measurements and calculations after separation from the workpiece, enabling fast and accurate depth control during operation
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
The machine achieves precise and rapid control of bevel cut depth with enhanced safety, ease of use, and reduced manufacturing complexity, allowing for efficient processing of weld bead surfaces on large workpieces.
Implementation Method 1
an elastic spring being interposed between the spring housing and the bevel cut depth controlling unit
Data Source
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AI summary
The present invention relates to a chamfer device for machining a weld bead surface, which specifically carries out a chamfering process on the welding bead surfaces of objects to be processed (such as metal sheet materials and pipes). In the present invention, immediately after a chamfering-amount-adjustment unit has been rotated and released, a position-setting pin is inserted into a securing recess in the chamfering-amount-adjustment unit, while the chamfering amount is adjusted in precise units and simultaneously locked at a predetermined chamfering amount which is automatically maintained, and the adjustment of the chamfering amount is achieved in a straightforward fashion with just one touch. When the chamfering-amount-adjustment unit is operated, a mobile cutter shaft moves vertically and as it does so the chamfering amount is adjusted in such a way that the chamfering amount can be immediately and rapidly adjusted while continuously operating without regard to any cutter rotation action.