Countersink Stop Sleeve Positioning for Precise Cutting Depth
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Solution Overview
Problem
Existing limiting devices require significant effort to position countersink tools precisely relative to stops, lacking simplicity and precision in achieving the desired cutting position.
Innovation Solution
A limiting device with a stop sleeve, sleeve carrier, and cutting head, featuring a positioning surface transverse to the axis of rotation, which ensures the cutting head is fixed in an axial position, allowing for simple and precise alignment by contacting the positioning surface, and includes a drive shaft element with a threaded section to secure the cutting head against axial movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional stop without a positioning surface is used, then the device structure remains simple, but the cutting head cannot be positioned precisely relative to the stop sleeve
Solution Approach 1:
The positioning surface on the stop sleeve serves itself by providing a reference surface that automatically defines the cutting position when the cutting head contacts it, eliminating the need for external measurement and adjustment mechanisms
Solution Approach 2:
The positioning surface is pre-configured on the stop sleeve at a specific axial distance from the stop side, so that when the cutting head contacts this surface, the correct cutting position is automatically established without requiring subsequent adjustment
2Loss of time
If the cutting head position is not fixed axially, then the device structure remains simple, but repeated measurements are needed during installation
Solution Approach 1:
The positioning surface automatically defines the axial position of the cutting head relative to the stop sleeve, making the system self-positioning and eliminating the need for repeated measurements and adjustments during installation
Solution Approach 2:
The axial distance between the positioning surface and the stop side is predetermined during manufacturing, so that the correct cutting position is established in advance, saving installation time and effort
3Manufacturing precision
If the positioning surface is not perpendicular to the axis of rotation, then the structure may be simpler, but the positioning becomes dependent on rotational position
Solution Approach 1:
The positioning surface is designed perpendicular to the axis of rotation, creating a symmetric reference surface that provides consistent positioning regardless of the cutting head's rotational position, making the positioning independent of rotation
Data Source
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AI summary
A limiting device (1, 300) is provided for limiting the penetration depth of a cutting head (4) into a workpiece, wherein the limiting device (1, 300) has a stop sleeve (2, 201), a sleeve carrier (3) and a cutting head (4), wherein the stop sleeve (2, 201) has a stop side (2a) for resting on a workpiece surface, wherein the sleeve carrier (3) is rotatably mounted relative to the stop sleeve (2, 201) with respect to an axis of rotation (5), is fixed in an axial position with respect to the axis of rotation (5) relative to the stop sleeve (2, 201) and supports the stop sleeve (2, 201), wherein the cutting head (4) rotates with the sleeve carrier (3) during a cutting head rotation with respect to the axis of rotation (5) and has at least one cutting edge (4a), wherein the sleeve carrier (3) has a positioning surface (3a), wherein the Positioning surface (3a) is arranged transversely to the axis of rotation (5) on the side of the stop (2a),wherein the cutting head (4) contacts the positioning surface (2a).