Cut Length Indicator Transverse Line Projection
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Solution Overview
Problem
Existing cut length indicating devices for machine tools lack precision and comfort in indicating the position of cutting edges on a workpiece, especially when the cutting edge is perpendicular to the plane of movement, making it difficult for operators to set the correct depth of cut accurately.
Innovation Solution
A cut length indicating device with a movably mounted indicating element that projects a cutting edge indicating line transversely to the plane of movement, allowing for precise indication of the cutting edge position, even when the cutting edge is perpendicular to the cutting plane, using a laser beam and a movement coupling unit to synchronize the indicating elements with the cut depth setting unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the indicating element projects a cutting edge indicating line transversely to the plane of movement, then the precision of indicating the cutting edge position is improved, but the device complexity increases
Solution Approach 1:
The indicating element projects a cutting edge indicating line in a direction transverse to the plane of movement of the indicating element. This dimensional change allows the indicating line to extend beyond the limited movement plane, providing accurate indication of cutting edge positions even when the cutting edge is perpendicular to the cutting plane, thereby resolving the contradiction between indication precision and device complexity
Solution Approach 2:
A movement coupling unit is introduced as an intermediary mechanism between the indicating element and the cut depth setting unit. This mediator synchronizes the movement of the indicating element with the cut depth setting, enabling precise indication without requiring complex direct coupling, thus resolving the contradiction by adding a functional intermediary
2Ease of operation
If the indicating element is mounted movably to project the cutting edge indicating line, then the operational comfort is improved, but the device complexity increases
Solution Approach 1:
The indicating element is mounted movably rather than fixedly, allowing it to dynamically adjust its position and orientation to project the cutting edge indicating line transverse to its plane of movement. This dynamic mounting improves operational comfort by enabling flexible indication angles while the movement coupling unit manages the complexity through synchronized motion control
3Measurement precision
If the cutting edge indicating line runs transversely to the cutting plane, then the accuracy of indicating perpendicular cutting edges is improved, but the alignment precision requirements increase
Solution Approach 1:
By projecting the cutting edge indicating line transverse to the cutting plane rather than within it, the system accesses an additional dimensional space for indication. This allows accurate representation of perpendicular cutting edges that cannot be adequately indicated within the cutting plane alone, resolving the contradiction by utilizing a different spatial dimension
Solution Approach 2:
The movement coupling unit acts as an intermediary that manages the alignment between the indicating element and the cutting edge. It synchronizes the indicating element's transverse projection with the cut depth setting, reducing the burden of alignment precision requirements on the operator while maintaining high indication accuracy
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
Enables operators to comfortably and accurately read the cutting edge position, allowing for precise setting of the cut length independent of the machine tool's traveling movement, enhancing operational comfort and machining precision.
Implementation Method 1
using a laser beam and a movement coupling unit to synchronize the indicating elements with the cut depth setting unit
Data Source
AI summary
A cut length indicating device for a portable machine tool includes at least one indication unit. The indication unit has at least one movably mounted indication element that is configured to indicate at least one position of a cutting edge of a machining tool on a work piece to be machined with reference to a set cutting depth of the machining tool. The indication element further has a cutting edge indication line, which runs at least substantially transversely to a movement plane of the indication element in order to indicate the position of the cutting edge in at least one operating state.