Contour Gauge Ruler Assembly with Restraining Means
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Solution Overview
Problem
Existing contour gauges face challenges in maintaining the accuracy of distance measurements during the tapping of object contours, particularly due to manufacturing tolerances in feeler fins and the need for increased robustness in ruler displacement mechanisms.
Innovation Solution
The contour gauge incorporates a robust ruler assembly with restraining means to fix the position of the rulers, ensuring accurate distance measurement. Additionally, it features a clamping element with adjustable pressure plates to compensate for manufacturing tolerances in the feeler fins.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the rulers are made fully movable to allow complete extraction from the guide, then the ease of operation is improved, but the reliability of distance measurement deteriorates due to potential position shifts
Solution Approach 1:
The ruler assembly implements a dynamic design where rulers can be extracted from the guide during operation, but restraining means are provided to fix them in specific positions when not in use. This allows the system to transition between movable (during contour tapping) and fixed (during measurement) states, resolving the contradiction between ease of operation and measurement reliability.
2Ease of operation
If the feeler fins are made loosely fitted to allow easy displacement, then the ease of operation is improved, but the manufacturing precision deteriorates due to tolerance accumulation
Solution Approach 1:
The clamping element changes the physical state of the feeler fins by applying clamping force, transitioning them from a loose, easily displaceable state during contour tapping to a firmly clamped state for accurate measurement. This parameter change (from loose to clamped) allows the system to overcome manufacturing tolerances and achieve precise measurements while maintaining ease of operation during the tapping phase.
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 solution enhances the robustness and accuracy of distance measurements, allowing for precise contour tapping and transfer onto base plates, while also compensating for manufacturing tolerances in the feeler fins.
Implementation Method 1
a clamping element is provided, by means of which a force directed at the fin bundle can be exerted on the first pressure plate
Implementation Method 2
restraining means are provided, by means of which the position of the rulers can be fixed
Data Source
AI summary
A contour gauge has an elongated housing, in which a plurality of measuring teeth are arranged so as to move transverse to the extension direction of the housing, and a ruler assembly for measuring a distance to an object spaced apart from the housing in the extension direction of the housing. The ruler assembly has a first ruler which is guided on lateral walls of a guide of the housing, which can be pulled out of the guide from a first storage position within the guide into a first stop position in the extension direction of the housing, and which supports a second ruler which can be moved relative to the first ruler in the extension direction of the housing from a second storage position into a second stop position. Securing elements are provided with which the rulers can be secured to the housing or to one another.