Polygon Indexing Tool with V-Notch for Workpiece Positioning
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Solution Overview
Problem
Current indexing tools for machining operations are expensive and difficult to use, lacking a cost-effective and user-friendly method for accurately holding and rotating workpieces to position holes at specific angles.
Innovation Solution
An indexing tool with a block having sides defining a regular polygon, featuring a central opening, a threaded hole, and a V-notch, allowing for easy positioning and rotation of workpieces by engaging a set screw, accommodating various diameters and shapes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional indexing tools are used to hold and rotate workpieces, then positioning accuracy is achieved, but device complexity and cost increase
Solution Approach 1:
The indexing tool is divided into distinct functional segments: a workpiece holder for securing the workpiece, a indexing mechanism with graduated markings for precise angular positioning, and a rotation feature for indexing between positions. This segmentation allows each component to perform its specific function efficiently while keeping the overall design simple and cost-effective.
Solution Approach 2:
The indexing tool incorporates self-aligning features such as V-notches and tapered surfaces that automatically guide the workpiece into the correct position without requiring complex adjustment mechanisms. The graduated markings provide self-evident positioning feedback, eliminating the need for additional measurement devices or complex alignment procedures.
2Measurement precision
If traditional indexing tools are used for machining operations, then positioning accuracy is achieved, but ease of operation deteriorates
Solution Approach 1:
The indexing mechanism pre-calculates and marks all necessary angular positions on the tool body, allowing the operator to simply select the required position without performing any calculations or complex adjustments. The workpiece holder is pre-configured with V-notches and alignment features that automatically position the workpiece correctly when engaged.
Solution Approach 2:
The indexing tool incorporates smooth rotation capability with incremental positioning, allowing the operator to easily rotate the workpiece between indexed positions. The design allows for quick adjustment between different angular positions while maintaining precision, making the tool adaptable to various indexing requirements without complicating the operation.
3Strength
If conventional workpiece holding methods are used, then secure holding is achieved, but adaptability to different workpiece diameters and shapes deteriorates
Solution Approach 1:
The workpiece holder is designed with universal features including V-notches of varying angles, adjustable clamping mechanisms, and tapered surfaces that can accommodate different workpiece diameters and shapes. The same holder can secure round bars, square stock, and other geometric forms while maintaining secure holding strength through geometric confinement and friction.
Data Source
AI summary
An indexing tool for positioning a workpiece, the tool comprising a block having sides, the sides defining a regular polygon. The block has a central opening, and a threaded hole extending at a right angle to the central opening and into and through one of the sides. The block also has a V notch in the block wall opposite the threaded hole, the threaded hole being adapted to have received therein a like threaded set screw.