Multi-Joint Robot Wait Position Return in NC Machine Tool
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Solution Overview
Problem
Operating multi-joint robots in NC machine tool systems is challenging for inexperienced operators due to the complexity of axis selection and potential interference with surrounding substances, making it a nerve-wracking and laborious task, and often requires specialized training and licensing.
Innovation Solution
An NC machine tool system with a multi-joint robot, an operation panel, program storing means, and a robot controller that sets a waiting position for the robot, allowing operators to select a pre-programmed path for the robot to return to a safe position, avoiding interference with safety fences, and facilitating operation even for first-time users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual operation of multi-joint robot is used, then operator can control robot precisely, but operation becomes nerve-wracking and laborious requiring specialized training
Solution Approach 1:
The robot controller automatically determines the optimal axis selection and moving direction based on the current robot position and the position of interfering substances, without requiring manual intervention from the operator. The system serves itself by autonomously selecting the best operation parameters
Solution Approach 2:
The system pre-stores multiple programs with different axis selections and moving directions. Before operation begins, the robot controller reads the robot's current position and pre-selects the most appropriate program from the stored options, preparing the optimal path in advance
2Reliability
If operator carefully moves robot considering optimal axis and direction, then safety is improved, but operation time and effort increase significantly
Solution Approach 1:
The robot controller continuously monitors the robot's current position and the positions of interfering substances, using this feedback information to automatically select the safest operating program. The system reads position data and dynamically chooses the optimal path based on real-time conditions
Solution Approach 2:
The patent replaces the mechanical manual operation system with an automated control system. The robot controller automatically executes program selection and robot movement control, substituting human manual manipulation with electronic control mechanisms
3Ease of operation
If pre-programmed paths are used, then operation is simplified for first-time users, but flexibility in handling different positions is reduced
Solution Approach 1:
The system dynamically selects from multiple pre-stored programs based on the robot's current position and the positions of interfering substances. Rather than using a fixed program, the system adapts its choice of program in real-time, making the pre-programmed system dynamic and position-dependent
Solution Approach 2:
The patent changes the parameters of the control system by storing multiple programs with different axis selections and moving directions. The robot controller selects which program to execute based on current position parameters, effectively changing the operational parameters dynamically
Data Source
AI summary
An NC machine tool system includes an NC machine tool (10), a first operation panel (22) and a second operation panel (24) for the NC machine tool, a multi-joint robot (40), a memory (450), and a robot controller (50). The multi-joint robot (40) is disposed above the NC machine tool. The memory (450) stores a wait position return program by which the multi-joint robot (40) is operated. The robot controller (50) controls the multi-joint robot (40) in accordance with the program. Operation panels (22, 24) are respectively provided with switch keys (22c, 24c) operated to execute the wait position return program stored in the memory (450) so as to operate the multi-joint robot (40).