Crossbar Breakage Prevention via Pivoting and Sliding Joints
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Crossbar system transfer apparatuses are prone to deformation or breakage due to misalignment of transfer members or contact with press machine dies, leading to potential breakage during power shutdown or operational misalignment.
Innovation Solution
A breakage prevention mechanism featuring synchronized transferring members with a crossbar that pivots and slides around the Z and Y axes, incorporating a fixation retention mechanism and sensors to detect displacement, allowing for adaptable movement and protection against excessive forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the crossbar is moved by synchronizing a pair of transferring members, then the work can be transferred stably, but heavy strain is put on the transferring members and crossbars, making them prone to deformation or breakage when displacement occurs
Solution Approach 1:
The connection between the crossbar and transferring members is changed from a fixed rigid connection to a flexible connection that allows pivoting around Y and Z axes. This parameter change in the connection type enables the system to accommodate displacement while maintaining stable transfer, reducing the strain on transferring members and crossbars during operation.
2Manufacturing precision
If the transferring members are made rigid for precise positioning, then positioning accuracy is improved, but the system becomes vulnerable to breakage when misalignment or contact with dies occurs
Solution Approach 1:
The connection between the crossbar and transferring members is designed to be dynamic rather than static, allowing pivoting movement around Y and Z axes. This dynamic connection maintains positioning accuracy during normal operation while providing flexibility to accommodate misalignment or contact with dies, preventing breakage of the rigid transferring members.
3Stability of the object's composition
If the crossbar connection is made fixed for stable operation, then operational stability is improved, but the system cannot accommodate displacement between transferring members
Solution Approach 1:
The connection is designed with pivoting capability around Y and Z axes, creating a dynamic connection that maintains stability during normal operation while adapting to displacement between transferring members. This dynamic yet stable connection allows the system to maintain operational stability while accommodating misalignment.
4Strength
If the crossbar is designed as a rigid structure for strength, then load-bearing capacity is improved, but the system becomes prone to breakage when displacement or misalignment occurs
Solution Approach 1:
The connection parameter between the rigid crossbar and transferring members is changed to allow pivoting movement. This enables the rigid crossbar to maintain its load-bearing capacity while the pivoting connection accommodates displacement and misalignment, preventing deformation and breakage of the crossbar structure.
Data Source
AI summary
The present invention is to provide a breakage prevention mechanism which prevents the deformation or breakage of a crossbar etc. and which can transfer the work even in the condition where the pair of left and right arm supporting the both end of the cross bar is displaced beyond the assumption. The breakage prevention mechanism 10 is equipped with a pair of arms 11 which is synchronized and moves approximately parallel, and a crossbar 12 bridged between the top end of the arms 11. Both end of the crossbar 12 and the arm 11 are connected pivotably around two axis. Both end of the crossbar 12 are configured to be slidable against the arm 11 in X axis direction. The plunger P is placed between both end of the crossbar 12 and arm 11, in which protects the crossbar by restraining the pivoting and the sliding of both in the normal condition and releasing the restraint when the unintended force is given.