Divided Bending Tool Gathering with Retry Insertion Control
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Solution Overview
Problem
Existing bending systems face interruptions in tool gathering operations due to failures in inserting tool retention members into insertion holes, leading to alarms and inefficiencies.
Innovation Solution
A bending system with first and second moving bodies and a control device that performs a retry operation by releasing the restraint on a reference tool, allowing for the insertion of tool retention members into target tools, thereby continuing the gathering operation without generating alarms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the tool retention member is inserted into the insertion hole to perform the gathering operation, then the tools are gathered without gaps, but if the inserting operation fails, an alarm is generated and the gathering operation is interrupted
Solution Approach 1:
The control device performs preliminary actions by moving the first tool retention member backward to release the reference tool before attempting re-insertion of the second tool retention member. This preliminary release action creates positional margin that facilitates successful re-insertion and prevents operation interruption.
Solution Approach 2:
The control device implements feedback by detecting insertion failure and automatically initiating a retry operation. The system monitors the insertion status and adjusts its behavior based on the detected failure, releasing the reference tool and attempting re-insertion without external intervention.
2Manufacturing precision
If the first tool retention member restrains the reference tool, then the gathering operation can be performed, but the reference tool cannot move which causes insertion failure of the second tool retention member
Solution Approach 1:
The system dynamically adjusts the restraint state of the reference tool during the gathering operation. When insertion failure is detected, the first tool retention member is moved backward to release the reference tool, allowing it to move freely for re-insertion. This dynamic switching between restrained and free states resolves the contradiction.
Solution Approach 2:
Before attempting re-insertion of the second tool retention member, the system performs a preliminary action of releasing the reference tool by moving the first tool retention member backward. This creates the necessary positional margin and facilitates successful insertion.
3Reliability
If the gathering operation is interrupted due to insertion failure, then an alarm is generated, but this reduces productivity
Solution Approach 1:
The control device ensures continuity of the gathering operation by automatically performing retry operations without interrupting the overall process. When insertion failure is detected, the system continuously attempts re-insertion after releasing the reference tool, maintaining productive action throughout.
Solution Approach 2:
The system performs self-service by automatically detecting insertion failure, releasing the reference tool, and attempting re-insertion without external intervention. This self-correcting capability eliminates the need for operator intervention and maintains productivity.
Data Source
AI summary
A gathering operation includes a restraint operation of moving forward a left lower tool retention member so as to restrain a reference lower tool with the left lower tool retention member, an inserting operation of moving forward a right lower tool retention member so as to insert the right lower tool retention member into an insertion hole of a target lower tool, and an execution operation of moving the left and right lower tool retention members along a left-right direction so as to come close with each other. If a failure of the inserting operation is determined, a control device performs a retry operation of moving forward the right lower tool retention member again so as to insert the right lower tool retention member into the insertion hole (141) of the target lower tool after moving backward the left lower tool retention member.