Multi-Part Press Beam Segmentation for Bending Speed
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Solution Overview
Problem
Current bending presses face challenges in reducing cycle time and achieving higher adjustment speeds, leading to increased overall efficiency in the forming process.
Innovation Solution
The bending press design divides the tool bar mass into a main mass for absorbing bending forces and a secondary mass for the bending tool, allowing for rapid adjustment speeds while ensuring safety, and incorporates a modular structure with a clamping device for secure and tilt-free guidance, reducing the need for complex pressure pistons and minimizing mass for high-speed adjustments with low drive power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the press beam is designed as a single solid mass to absorb bending forces, then structural strength is improved, but adjustment speed and cycle time deteriorate due to the large mass that must be moved
Solution Approach 1:
The press beam is divided into a fixed press beam and a movable tool bar, where the tool bar carries the bending tool and can be rapidly adjusted relative to the fixed press beam. This segmentation allows the heavy fixed press beam to provide structural strength while the lighter movable tool bar achieves high adjustment speeds.
2Productivity
If the press beam is divided into multiple parts to reduce mass and increase adjustment speed, then cycle time is improved, but structural strength and stability deteriorate
Solution Approach 1:
The press beam system is segmented into a fixed press beam for structural stability and a movable tool bar for rapid adjustment. The fixed press beam remains stationary to maintain structural integrity, while the tool bar moves independently to reduce cycle time.
Solution Approach 2:
A drive arrangement acts as an intermediary between the fixed press beam and the movable tool bar, enabling controlled relative movement. This intermediary mechanism allows the system to maintain structural stability while achieving rapid adjustment speeds through the movable tool bar.
3Manufacturing precision
If complex pressure pistons are used to adjust the press beam, then adjustment precision is improved, but device complexity and assembly effort increase
Solution Approach 1:
The complex pressure piston mechanism is extracted and replaced with a simpler drive arrangement that enables relative movement between the fixed press beam and movable tool bar. This extraction maintains adjustment precision while significantly reducing device complexity and assembly effort.
4Manufacturing precision
If the tool bar mass is increased to improve forming quality, then forming precision is improved, but adjustment speed deteriorates due to higher inertia
Solution Approach 1:
The tool bar is segmented into a fixed press beam (providing forming quality through stability) and a movable tool bar portion (providing rapid adjustment). The movable portion has reduced mass for high-speed adjustment while the fixed portion maintains structural integrity for precision forming.
Data Source
Figure 1
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Figure 4~5
AI summary
The invention relates to a bending press (1), in particular a press brake, with a machine frame having a fixed table beam (7) that can be fitted with bending tools (29, 30) and a multi-part press beam (20) that is adjustable in a plane perpendicular to a support surface (27) for the bending tools (29, 30) of the table beam (7) in a guide arrangement (19) of the machine frame relative to the fixed table beam (7), with a drive arrangement (23).The press beam adjustably supports a tool beam (25) which can be equipped with the bending tools (29, 30) in an adjustment direction parallel to an adjustment direction of the press beam (20), for this purpose several adjusting means (32) of a further drive arrangement (26) are arranged between the press beam (20) and the tool beam (25), spaced apart from each other in the direction of a longitudinal extension of the press beam (20) and aligned parallel to each other in the direction of force action relative to the adjustment direction of the press beam (20).