Telescopic Press Transfer Mechanism With Differential Motion Ratios

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Solution Overview

Problem

Existing press transfer systems face challenges in efficiently transferring components between tool devices due to issues like carrier movement ahead of the telescopic elements, leading to potential collisions and increased downtime, especially in press chains with linear feeders and telescopic axles.

Innovation Solution

A device and method utilizing a telescopic system with multiple translation paths and drives, allowing for differential gear ratios and independent control of telescopic elements to precisely manage the movement of components between tool devices, ensuring the carriage and carrier move in sync with the base, preventing leading movements and optimizing the use of space.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If telescopic axes with long travel distances are used to distribute movement across various machine elements, then the speed of each individual component is reduced, but the risk of carrier moving ahead of telescopic elements increases, leading to potential collisions and increased downtime

Engineering Contradiction:
Improvecomponent speedVSAvoidcollision risk
Core Design Contradiction:
SpeedVSReliability

Solution Approach 1:

The patent implements dynamic control of the telescopic device by using a transmission device with different transmission ratios for different telescopic elements. This allows the system to adaptively adjust the movement speed of each telescopic element (base, carrier, slide) during the transfer process, ensuring that elements move at coordinated speeds to prevent collisions while maintaining efficient overall transfer speed.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the transmission parameters by employing a transmission device with variable transmission ratios. Different transmission ratios are applied to different telescopic elements based on their position and functional requirements, allowing precise control over their relative speeds and positions throughout the transfer cycle, thereby preventing the carrier from moving ahead of the telescopic elements.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If telescopic elements are moved at different speeds to optimize transfer efficiency, then productivity increases, but coordination between elements becomes more complex, requiring precise control mechanisms

Engineering Contradiction:
Improvetransfer efficiencyVSAvoidcontrol complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent merges the control of multiple telescopic elements into a single integrated transmission device driven by one motor. This transmission device simultaneously controls the base, carrier, and slide with different transmission ratios, eliminating the need for multiple independent motors and complex control systems while achieving coordinated movement and high transfer efficiency.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The transmission device serves multiple functions: it drives all telescopic elements (base, carrier, slide), provides different transmission ratios for each element, and ensures proper coordination throughout the transfer cycle. This multi-functional design simplifies the overall control system while maintaining high productivity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Manufacturing precision

If the carrier and telescopic elements move in sync with differential gear ratios, then precision and efficiency of component transfer is enhanced, but the transmission device complexity increases

Engineering Contradiction:
Improvetransfer precisionVSAvoidtransmission device complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The transmission device is segmented into multiple transmission stages, each with specific transmission ratios tailored to different telescopic elements. This segmentation allows precise control over the movement of each element (base, carrier, slide) while keeping each transmission stage relatively simple in design, balancing precision requirements with device complexity.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3016760B1Apparatus and method for transferring a component and tool system
Publication Date: 2021.08.11 HSF AUTOMATION
  • EP3016760B1 patent drawingFigure 1
  • EP3016760B1 patent drawingFigure 2
  • EP3016760B1 patent drawingFigure 3

AI summary

The invention relates to an apparatus (100) for transferring a component to a tool device (102, 104), in particular a press. The apparatus (100) has a frame (110), a travelling device (112) with a first drive (136) for moving the travelling device (112) with respect to the frame (110), and a telescopic device (114). The telescopic device (114) is equipped with a base (120) which can be moved along a first moving path with respect to the travelling device (112), a carrier (122), which can be moved along a second movement path with respect to the base (120), and a carriage (124) for transferring the component, wherein the carriage (124) can be moved along a third movement path with respect to the carrier (122), a second drive (126) and a transmission device. The transmission device is designed to transmit a drive movement of the second drive (126) to the base (120) with a first transmission ratio, to the carrier (122) with a second transmission ratio and to the carriage (124) with a third transmission ratio, in order to move the base (120) along the first movement path, the carrier (122) along the second movement path and the carriage (124) along the third movement path, wherein at least two of the transmission ratios differ from one another.