Press Brake Support Device Lever Linkage Inertia Reduction
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Solution Overview
Problem
Existing support devices for press brakes are large and heavy, limiting dynamic operation and requiring significant installation space, which restricts the machine operator's working area and prevents high dynamic positioning movements.
Innovation Solution
A support device with a lever linkage system connected to a positioning drive, featuring a parallel kinematic system with rotary joints and a rocker mechanism, which reduces mass inertia and allows for compact installation, enabling improved dynamic operation and reduced installation space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a support device with a parallel kinematic system is used to support the sheet metal workpiece, then the support function is improved, but the device size becomes very large and installation space is restricted
Solution Approach 1:
The support device is divided into multiple lever arms (first main lever arm, second main lever arm, support arm) connected by rotary joints, forming a segmented parallel kinematic system. This segmentation allows the device to achieve the required support function while reducing the overall footprint and installation space compared to a monolithic structure.
Solution Approach 2:
The lever arms are arranged in a parallel configuration with rotary joints positioned at specific intervals, creating a three-dimensional parallel kinematic system. This spatial arrangement enables compact installation while maintaining the support function, as the parallel structure efficiently utilizes space in multiple dimensions.
2Reliability
If a support device with a parallel kinematic system is used, then the support function is improved, but the mass inertia of individual elements becomes very high, preventing highly dynamic operation
Solution Approach 1:
The support device is divided into multiple lever arms (first main lever arm, second main lever arm, support arm) connected by rotary joints, forming a segmented parallel kinematic system. This segmentation allows the device to achieve the required support function while reducing the overall footprint and installation space compared to a monolithic structure.
Solution Approach 2:
The lever arms are arranged in a parallel configuration with rotary joints positioned at specific intervals, creating a three-dimensional parallel kinematic system. This spatial arrangement enables compact installation while maintaining the support function, as the parallel structure efficiently utilizes space in multiple dimensions.
3Reliability
If a support device with large size is used, then the support function is ensured, but the standing space for the machine operator is very restricted
Solution Approach 1:
The support device is divided into multiple lever arms (first main lever arm, second main lever arm, support arm) connected by rotary joints, forming a segmented parallel kinematic system. This segmentation allows the device to achieve the required support function while reducing the overall footprint and installation space compared to a monolithic structure.
Solution Approach 2:
The lever arms are arranged in a parallel configuration with rotary joints positioned at specific intervals, creating a three-dimensional parallel kinematic system. This spatial arrangement enables compact installation while maintaining the support function, as the parallel structure efficiently utilizes space in multiple dimensions.
Data Source
AI summary
The invention relates to a support device (15) for a press brake, comprising a base frame (24) and a support plate (17) with a bearing surface (18) which can be positioned between a base position (26) and a maximum position (27). The support plate (17) is arranged on a lever linkage system (25) which is connected to a drive unit (32) and which is designed as a parallel kinematics system. The drive unit (32) comprises a crank (35), which is connected to a positioning drive (33) designed as a rotary drive (34), and a rocker (54), which is connected to the crank in an articulated manner. The rocker (54) is connected to the crank (35) by means of an eight rotary joint (55) and to the lever linkage system (25) by means of a ninth rotary joint (56).