CNC Cone-Segment Machining for Non-Conical Valve Sealing Faces
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Solution Overview
Problem
The production of non-conical faces, particularly for multiple-eccentric shut-off valves, is challenging due to their complex geometry, requiring external CAD/CAM systems for generating parts programs, which is inconvenient and restricts on-site machining capabilities.
Innovation Solution
A method allowing direct workshop-oriented programming on the CNC controller using cycles and parameterization to generate parts programs for machining non-conical faces defined by a segment of a cone, enabling on-site machining without external systems, with the CNC controller automatically generating movement paths based on user inputs and machine-specific data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If external CAD/CAM systems are used to generate parts programs for non-conical faces, then manufacturing precision can be achieved, but device complexity and ease of operation deteriorate due to requiring external systems and extensive work preparation
Solution Approach 1:
The patent merges the CAD/CAM programming functionality directly into the CNC controller by integrating a cycle program that includes cone segment geometry definitions and path generation algorithms. This consolidation eliminates the need for separate external CAD/CAM systems while maintaining manufacturing precision for non-conical faces.
Solution Approach 2:
The CNC controller performs self-service by automatically generating the parts program for non-conical face machining using built-in cycle programs. The controller calculates movement paths and machining parameters internally based on workpiece geometry inputs, eliminating dependency on external programming systems and reducing device complexity.
2Adaptability or versatility
If external CAD/CAM systems are used for generating parts programs, then complex valve sealing faces can be machined, but ease of operation and productivity worsen due to requiring extensive work preparation and on-site machining restrictions
Solution Approach 1:
The CNC controller provides self-service functionality by incorporating complete parts program generation capabilities within the controller itself. Operators can directly program non-conical face machining operations using built-in cycle programs without needing external CAD/CAM systems, enabling convenient on-site machining of complex valve sealing faces.
Solution Approach 2:
The CNC controller achieves multi-functionality by integrating both control functions and parts program generation functions into a single device. The universal cycle program can handle various non-conical face geometries and machining operations, making the controller adaptable to different valve sealing face requirements while maintaining ease of operation.
3Manufacturing precision
If external CAD/CAM systems are used to create parts programs, then accurate movement paths can be generated, but loss of time increases due to extensive work preparation outside the workshop
Solution Approach 1:
The CNC controller performs self-service by automatically generating accurate movement paths using built-in algorithms and cycle programs. This eliminates the time-consuming process of creating parts programs in external CAD/CAM systems, as the controller directly calculates optimal machining paths based on workpiece geometry and machining parameters.
Solution Approach 2:
The cycle program incorporates pre-calculated movement paths and machining strategies for non-conical face operations. By preparing the programming logic in advance within the controller's memory, the system eliminates on-site work preparation time while maintaining manufacturing precision during actual machining operations.
4Productivity
If workshop-oriented programming is implemented on the CNC controller, then ease of operation and productivity improve, but device complexity increases due to requiring integrated programming capabilities
Solution Approach 1:
The patent merges programming capabilities directly into the CNC controller through integrated cycle programs for non-conical face machining. This consolidation enables workshop-oriented programming that improves productivity by eliminating external system dependencies, while the merging of functions is achieved through efficient software integration rather than physical complexity.
Data Source
AI summary
In a method for producing and/or machining a non-conical face of a workpiece defined by a segment of a cone, in particular a sealing face of a multiple-eccentric shut-off valve, using a machine tool having at least two linear axes and at least one rotary axis controlled by a numerical controller for generating a relative movement between a tool and the workpiece, a cycle is provided on the numerical controller and retrieved by a user of the machine tool. The user parameterizes the cycle, whereafter a part program is generated by the cycle for execution by the numerical controller. The executed part program generates the relative movement along a path determined by the part program to produce and/or machine the face of the workpiece.