Machine Tool Vibration Amplitude Control Along Segmented Cutting Paths
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Solution Overview
Problem
Existing machine tools lack the ability to freely set the amplitude of reciprocating vibration along a predetermined movement path during the cutting process, limiting the flexibility and efficiency of the cutting operation.
Innovation Solution
A machine tool configuration that includes rotating and feeding means for the cutting tool and workpiece, with vibrating and amplitude control means that allow the movement path to be divided into multiple segments, enabling individual amplitude settings for each segment, and using interpolation methods to control the cutting tool's movement and vibration amplitude.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the amplitude of reciprocating vibration is controlled uniformly along the entire movement path, then the control system is simple, but the flexibility and efficiency of the cutting operation are limited
Solution Approach 1:
The movement path is divided into multiple segments along the predetermined cutting path. The amplitude control means sets different amplitude values for each segment, allowing the vibration amplitude to vary at different positions along the path. This segmentation enables flexible adaptation to different cutting requirements at different locations without requiring a completely complex continuous control system.
Solution Approach 2:
Different amplitude values are assigned to different segments of the movement path based on local cutting requirements. Each segment can have optimized amplitude settings suited to its specific machining conditions, achieving local optimization of cutting performance while maintaining overall system manageability.
2Productivity
If the movement path is divided into multiple segments with individual amplitude settings, then the cutting efficiency and flexibility are improved, but the control system complexity increases
Solution Approach 1:
The predetermined movement path is divided into multiple segments at predetermined intervals. This segmentation allows the amplitude to be optimized for different cutting stages or positions, improving cutting efficiency by adapting vibration parameters to local conditions while maintaining a manageable control structure.
Solution Approach 2:
The amplitude control means dynamically adjusts the vibration amplitude based on the current segment position along the movement path. This dynamic adjustment capability enables the system to optimize cutting performance at each position without requiring manual intervention or complex real-time sensing systems.
3Manufacturing precision
If a single amplitude value is used for the entire cutting path, then the device operation is simple, but the manufacturing precision and surface quality may be compromised
Solution Approach 1:
Different amplitude values are assigned to different segments of the movement path to optimize surface quality at specific locations. Critical areas can receive specialized amplitude treatment for better surface finish, while less critical areas use standard settings, achieving high manufacturing precision where needed without overly complicating the overall operation.
Solution Approach 2:
The vibration amplitude parameter is changed at predetermined points along the movement path to optimize cutting conditions for different sections. This parameter variation allows improvement of surface quality and manufacturing precision in specific areas without requiring continuous complex control.
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
This configuration allows for precise control of the cutting process, enabling the amplitude of vibration to be freely set along the movement path, enhancing the flexibility and efficiency of the cutting operation by ensuring the cutting tool moves along a predetermined path with optimized vibration amplitude.
Implementation Method 1
vibrating means for reciprocatingly vibrating the cutting tool and the workpiece relative to each other
Data Source
AI summary
A machine tool includes: a cutting tool; rotating means; feeding means; vibrating means for reciprocatingly vibrating the cutting tool and the workpiece relative to each another; and amplitude control means for controlling the amplitude of the reciprocating vibration by the vibrating means. The cutting process is carried out by rotation of the workpiece and the cutting tool relative to each other and feeding of the cutting tool accompanied by the reciprocating vibration with said amplitude in the machining feeding direction of the cutting tool, to thereby move the cutting tool along a predetermined movement path relative to the workpiece. The movement path comprises a plurality of divisional paths divided at predetermined coordinate positions on the movement path. The amplitude control means is adapted to set the amplitude individually for each of the divisional paths.