Grinding Device for Radial Grooves in Blade Carriers
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Solution Overview
Problem
The existing machining processes for radial grooves in guide vane carriers are complex, especially when dealing with cracks at the corner radius, as they require manual riveting and grinding, which can be stressful for the components and inefficient.
Innovation Solution
A machining device with a base support, pivotable clamping device, and a tool holder head that can pivot and move along a guide rail, allowing precise guidance of a machining tool along the groove, including the corner radius, using hydraulic clamping and adjustable tool positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If manual riveting and grinding processes are used for radial grooves, then the grooves can be machined, but the process becomes complex and stresses the components
Solution Approach 1:
The patent replaces manual mechanical operations with an automated machining device that integrates clamping, positioning, and grinding functions. The device uses a pivotable base support with clamping device, a guide rail system, and a tool holder head with machining tool to automatically perform the machining of radial grooves, eliminating the need for separate manual riveting and grinding steps.
Solution Approach 2:
The patent combines multiple functions into a single integrated machining device. The base support with clamping device, the guide rail, the tool holder head, and the machining tool work together as one system to perform clamping, positioning, and machining operations simultaneously, reducing the overall process complexity compared to separate manual operations.
2Productivity
If manual grinding is used for cracks in radial grooves, then cracks can be removed, but the process is time-consuming and inefficient
Solution Approach 1:
The patent replaces manual grinding operations with an automated machining device that can rapidly machine radial grooves and remove cracks. The integrated system with automated tool positioning and machining capabilities significantly reduces the time required compared to manual grinding processes.
Solution Approach 2:
The machining device enables continuous machining operations along the radial groove. The guide rail system allows the tool holder head to move continuously along the groove path, and the pivotable connections enable smooth transitions, maintaining continuous useful action throughout the machining process without the interruptions typical of manual operations.
3Manufacturing precision
If a fixed machining setup is used, then the device structure is simple, but precise tool alignment along the groove is difficult to achieve
Solution Approach 1:
The patent employs dynamic elements including a pivotable base support that can rotate about a pivot axis, a guide rail that moves linearly, and a tool holder head that pivots about an axis parallel to the pivot axis. These dynamic connections enable the machining tool to be precisely aligned and positioned along the radial groove while maintaining a relatively simple overall device structure.
Solution Approach 2:
The machining device is divided into segmented functional components: the base support with clamping device, the guide rail system, and the tool holder head. Each segment can move or pivot independently, allowing precise alignment of the tool along the groove while keeping each individual component structurally simple.
4Ease of operation
If the machining tool is held stationary, then the device structure is simple, but the tool cannot follow the groove contour including corner radius
Solution Approach 1:
The patent makes the machining tool dynamic through a tool holder head that can pivot about an axis of rotation parallel to the pivot axis of the base support. This dynamic capability allows the tool to follow the groove contour including corner radius areas while maintaining ease of operation. The guide rail provides linear movement guidance, and the pivotable tool holder head provides angular adjustment capability.
Solution Approach 2:
The patent adds rotational freedom in another dimension by allowing the tool holder head to pivot about an axis parallel to the pivot axis. This second degree of freedom enables the tool to accommodate the three-dimensional contour of the radial groove, including corner radius areas, without significantly increasing overall device complexity.
Data Source
AI summary
A machining device, in particular a grinding device, for the machining of slots in a component, in particular radially lying slots in a stationary blade carrier, with a base carrier, a clamping device, which is attached to the base carrier pivotably about a pivot axis and is designed to fix the base carrier on the component to be machined, a guiding rail, which is guided on the base carrier displaceably in a straight line in a guiding plane lying perpendicularly in relation to the pivot axis, and a tool holder head, which is held on the guiding rail pivotably about a rotation axis parallel to the pivot axis and carries fastening means for the attachment of a machining tool is provided.