Press Brake Divided Upper Tool Fitting Between Spaced Holders

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Solution Overview

Problem

Existing methods for installing divided upper tools to upper tool holders spaced at intervals in a press brake are not compatible with both manual and automatic tool changers, limiting flexibility and efficiency.

Innovation Solution

A method using a tool changer with a rod-shaped finger to engage and position divided upper tools between upper tool holders, allowing installation through a tool stocker and upper tool holder, enabling both manual and automatic tool changer compatibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If upper tool holders are spaced at intervals in the left-right direction, then multiple tools can be installed, but manual installation is required which reduces efficiency

Engineering Contradiction:
Improvetool installation efficiencyVSAvoidmanual installation requirement
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The upper tool holder is divided into multiple holders spaced at intervals in the left-right direction, allowing independent installation and operation on each holder while maintaining overall system functionality

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A clamp serving as an intermediary component is introduced to facilitate tool installation. The clamp can be operated manually or automatically to press the attachment portion against the upper tool holder, enabling both manual and automated operation modes

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If a tool changer is used for automatic tool installation, then installation speed increases, but compatibility with existing spaced holder configurations is lost

Engineering Contradiction:
Improveautomatic tool installation speedVSAvoidcompatibility with spaced holder configuration
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The clamp is designed with multi-functionality to serve both manual and automatic operation modes. It can be operated manually by workers or automatically by a tool changer, making it compatible with both installation methods and various holder configurations

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

Solution Approach 2:

The clamp introduces dynamic operation capability where the pressing action can be activated either manually or automatically. This dynamic characteristic allows the system to adapt between different operation modes and maintain compatibility with spaced holder configurations while enabling automatic installation

Inventive Principle:
Principle #15Dynamics

3Stability of the object's composition

If the upper tool installing portion spans the entire width, then tool stability is improved, but it cannot accommodate spaced holder configurations

Engineering Contradiction:
Improvetool stabilityVSAvoidcompatibility with spaced holders
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The upper tool holder is segmented into multiple independent holders spaced at intervals, with each holder providing localized support and stability through the clamp mechanism, eliminating the need for a continuous spanning structure

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3825026B1Method for fitting divided upper tool to upper tool holder provided on upper table of a press brake
Publication Date: 2026.04.15 AMADA CO LTD
  • EP3825026B1 patent drawingFigure 1
  • EP3825026B1 patent drawingFigure 2
  • EP3825026B1 patent drawingFigure 3

AI summary

In an installing method for installing divided upper tools (17) to upper tool holders (15) disposed to be spaced at an appropriate interval in a left-right direction in a lower portion of an upper table (11) of a press brake (1), by using a tool changer (20), a round bar-shaped finger (53) provided in the tool changer (20) is engaged in a circular engagement hole (51) provided at a central portion in the lateral direction of each divided upper tool (17). The divided upper tool (17) is temporarily positioned in a gap between an upper tool holder (15) to which the divided upper tool (17) is to be installed, and an adjacent upper tool holder (15). The temporarily positioned divided upper tool (17) is moved in the left-right direction to be installed to the upper tool holder (15) to which the divided upper tool (17) is to be installed.