Automated Modular Tool End Effector Setup

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Solution Overview

Problem

Current methods for setting the location of modular automation tooling are time-consuming and prone to human error, requiring offline setup with sample parts, which is costly and inefficient due to the need for transporting parts and readjusting end effectors for different part shapes and modifications.

Innovation Solution

A method and apparatus using programmable linear motion actuators and motors to precisely position and orient end effectors based on CAD data, allowing for automated setup of modular tooling without interrupting production, with features like X-Y-Z axis movement and rotational adjustments to align with part surfaces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If offline setup with sample parts is used to position end effectors, then manufacturing precision is improved, but loss of time increases due to transporting parts and readjusting for different part shapes

Engineering Contradiction:
Improvepositioning accuracy of end effectorVSAvoidsetup time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The patent uses a laser scanner to create a digital 3D model (copy) of the part instead of using physical sample parts for setup. The laser scanner captures the part geometry and generates point cloud data, which is then used to automatically calculate and position the end effector. This eliminates the need to transport physical sample parts to the setup location and removes the time-consuming manual readjustment process for different part shapes.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent replaces the manual mechanical positioning process with an automated system. Instead of manually manipulating mechanical gauges on a table based on CAD data, the system uses a laser scanner to acquire part geometry, processes the data computationally, and automatically drives the positioning mechanism to the correct position. This substitution of mechanical manual operations with automated optical and computational processes eliminates human error and significantly reduces setup time.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Manufacturing precision

If manual manipulation of mechanical gauge is used to position tooling based on CAD data, then manufacturing precision can be achieved, but device complexity increases and human error occurs

Engineering Contradiction:
Improvepositioning accuracy of end effectorVSAvoidsetup process complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent replaces the complex manual mechanical gauge manipulation process with an automated optical scanning and computational processing system. Instead of requiring operators to manually position mechanical gauges based on CAD data, the system uses a laser scanner to automatically capture part geometry, processes the point cloud data computationally, and automatically drives the positioning mechanism. This reduces device complexity by eliminating manual mechanical gauge tools and reducing the complexity of the setup process through automation.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system performs self-positioning by automatically calculating the end effector position based on the scanned part geometry and CAD data comparison. The processor automatically determines the optimal position and drives the positioning mechanism without requiring manual intervention, making the system self-sufficient and eliminating human error in the positioning process.

Inventive Principle:
Principle #25Self-service

3Manufacturing precision

If production line is stopped to set position of automation tooling, then manufacturing precision is improved, but productivity decreases

Engineering Contradiction:
Improvepositioning accuracy of end effectorVSAvoidproduction line throughput
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The patent enables setup operations to be performed preliminarily and automatically without stopping the production line. The laser scanner can acquire part geometry and the processor can calculate positioning data while the production line continues to operate. The automated positioning system can then make adjustments without interrupting production, allowing setup activities to be performed in advance or concurrently with production operations.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent replaces manual setup operations that require production line stoppage with an automated optical and computational system. The laser scanner and automated positioning mechanism can perform setup tasks quickly and accurately without requiring the production line to stop, thereby maintaining productivity while achieving precise positioning.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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 precise, efficient, and error-free setup of modular tooling, reducing downtime and costs by allowing for automated alignment of end effectors according to CAD data, improving production efficiency and accuracy.

Implementation Method 1

The X axis linear actuator and Y axis linear actuator may both be rack and pinion gear sets

Methodology Applied
Scientific EffectRack and pinion: Rack and Pinion

Implementation Method 2

The Z axis linear actuator may be a worm gear and a worm gear drive

Methodology Applied
Scientific EffectWorm gear: Worm Drive

Implementation Method 3

A tool setting head of the setting fixture is rotated with a head rotation motor

Methodology Applied
Scientific EffectRotational motion:

Implementation Method 4

The step of pivoting the platen may be performed with the at least one platen tilting motor driving a first pinion gear and a first arcuate gear

Methodology Applied
Scientific EffectPinion gear mechanism: Gear

Data Source

PatentUS10814440B1Method of assembling an automated modular tool
Publication Date: 2020.10.27 AUTOMATION SERVICES LLC
  • US10814440B1 patent drawing
  • US10814440B1 patent drawing
  • US10814440B1 patent drawing

AI summary

A method and apparatus are disclosed for assembling an end effector for an automated modular tool. A processor is programmed with data corresponding to a portion of a part surface at a designated location. A setting fixture is driven with a plurality of linear motion actuators to a selected three-dimensional location relative to an adaptor bar of the modular tool that is attached to a frame. A tool setting head is rotated with a rotary drive. A platen is tilted with at least one platen tilting motor and gear set to angularly orient the platen to correspond to an angular orientation of the portion of the part surface at the designated location. An end effector is then placed on the platen and secured with a tooling arm to the adaptor bar.