Bending Press Light Barrier Repositioning for Tool Change Access
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Solution Overview
Problem
Bending presses with light barrier safety devices face challenges in accommodating heavier or larger tools due to space constraints and the inability to easily change tools without obstructing the safety device, which compromises safety and efficiency.
Innovation Solution
The bending press features adjustable guide rail mounts with a front side opening that can be obstructed or unblocked via an adjustment drive, allowing for tool changes parallel to the rail, and a safety device that repositions to unblock access during tool changes, ensuring safety standards are met while accommodating tools of varying shapes and sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the light barrier safety device is mounted on the bending press with fixed position, then safety monitoring is ensured, but tool changing is obstructed for heavier or larger tools
Solution Approach 1:
The light barrier mount is made adjustable between different positions along the guide rail, allowing it to move from a first position that obstructs tool changing to a second position that facilitates tool changing. This dynamic repositioning capability resolves the contradiction between maintaining safety monitoring and enabling easy tool changing for heavier or larger tools.
Solution Approach 2:
The adjustable mount acts as an intermediary between the light barrier safety device and the guide rail, allowing the safety device to be repositioned to different locations along the guide rail. This intermediary mechanism enables the system to switch between safety-oriented positioning and tool-changing-friendly positioning.
2Ease of operation
If the mount is positioned to facilitate tool changing, then access is unblocked, but safety monitoring capability is reduced
Solution Approach 1:
The system dynamically repositions the light barrier mount between a first position that facilitates tool changing and a second position that optimizes safety monitoring. The adjustability allows the operator to switch between these states as needed, resolving the contradiction between access facilitation and safety monitoring capability.
3Weight of moving object
If heavier or larger tools are used, then bending capacity is increased, but tool changing becomes difficult due to shape and weight constraints
Solution Approach 1:
The adjustable light barrier mount can be repositioned to create unobstructed access to the guide rail, enabling operators to change heavier or larger tools more easily. The mount's mobility along the guide rail removes the obstruction that would otherwise make tool changing difficult for tools with specific shapes or weights.
4Device complexity
If the light barrier position is fixed, then safety device structure is simple, but adaptability to different tool configurations is limited
Solution Approach 1:
The light barrier mount is designed with adjustability along the guide rail, allowing it to be positioned at different locations to accommodate various tool configurations. This dynamic positioning capability increases adaptability while adding only minimal complexity to the safety device structure.
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
Enables easy and efficient insertion and removal of heavier or larger tools with minimal effort while maintaining high safety standards by automatically adjusting the light barrier position to prevent collisions and ensure safe operation.
Implementation Method 1
Safety devices in the form of light barriers require mounts on either side of the press beam for the light emitter and light receiver
Data Source
AI summary
The invention relates to a bending press (10) for bending a workpiece (19), comprisinga first platform (1) with a first tool mount (11) and a second platform (2) with a second tool mount (12), wherein one of the platforms (1) is movable relative to the other platform (2) for performing a working movement,a first safety device (20) for creating a light barrier (27) extending between the tool mounts (11, 12) transversely to the working movement of the movable platform (1), wherein the first safety device (20) has a first mount (21) and a second mount (22), wherein one of the mounts (21) carries a light emitter (25) and the other mount (22) carries a light receiver (26), and wherein the first mount (21) is arranged on a first side of the first platform (1) and is adjustable relative to the first platform (1) by a first adjustment drive (23),a controller (9) that is connected to the first adjustment drive (23), characterized in that the first tool mount (11) is designed in the form of a guide rail, which has at its first end a first front side opening (13) for changing a bending tool (8), and that the access for changing a bending tool (8) via the first front side opening (13) is obstructed in a first relative position of the first mount (21) to the first platform (1) and is unblocked in a second relative position of the first mount (21) to the first platform 1.