Machine Tool Controller Roll-In Path Automation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing machine tool controllers face challenges in automatically generating and implementing a roll-in machining path, which is known to reduce vibration and extend cutting tool life, due to cumbersome calculations and programming requirements.
Innovation Solution
A machine tool controller that identifies the cutting tool's first contact position with the workpiece and incorporates a roll-in path by inserting arcuate interpolation instructions into the machining program, using a position/direction identification unit and movement path correction unit to automate the generation of the roll-in path, thereby simplifying the operation and reducing tool wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If a roll-in path is used to reduce vibration and extend tool life, then cutting tool life is improved, but the complexity of generating and programming the path increases
Solution Approach 1:
The controller automatically calculates and prepares the roll-in path parameters before machining begins. The position/direction identification unit determines the cutting start position and machining direction in advance, and the movement path correction unit pre-computes the arcuate interpolation path, so that when machining starts, the complex path generation is already complete and the operator only needs to execute the program.
Solution Approach 2:
The controller performs self-service by automatically generating the roll-in path without requiring external manual calculation or programming. The position/direction identification unit and movement path correction unit work together to autonomously compute the optimal cut-in path based on the machining program parameters, eliminating the need for operators to manually create complex arcuate paths.
2Manufacturing precision
If manual calculation and programming of roll-in path is performed, then machining precision is improved, but the ease of operation deteriorates
Solution Approach 1:
The controller performs self-service by automatically generating the roll-in path without requiring external manual calculation or programming. The position/direction identification unit and movement path correction unit work together to autonomously compute the optimal cut-in path based on the machining program parameters, eliminating the need for operators to manually create complex arcuate paths.
Solution Approach 2:
The patent replaces the manual mechanical process of path calculation and programming with an automated computational system. The controller's position/direction identification unit and movement path correction unit use computational algorithms to generate the roll-in path, substituting the operator's manual mathematical calculations and programming efforts with automatic computer-based computation.
3Ease of operation
If automatic generation of roll-in path is implemented, then ease of operation is improved, but the device complexity increases
Solution Approach 1:
The controller's path generation functionality is segmented into distinct functional units: the position/direction identification unit that detects cutting start conditions, and the movement path correction unit that computes the roll-in path. This segmentation allows each unit to perform a specific function, making the overall complex task of automatic path generation manageable through modular functional decomposition.
Data Source
AI summary
A controller controls a machine tool that rotates a cutting tool attached to a spindle to cut a workpiece in accordance with a machining program. The controller identifies, when the machining program is executed to cause the cutting tool to cut into the workpiece, a position where the cutting tool has come into contact with the workpiece for the first time and a machining direction at the time when the cutting tool has cut into the workpiece, and inserts, in the machining program, a roll-in path instruction having an end point set to the identified position at which the cutting tool has come into contact with the workpiece for the first time.