Swing Workpiece Holder With Elastic Restrictors for Attitude Stability

Solution Overview

Problem

Existing workpiece holding devices require complex configurations and increased weight due to the need for load sensors and control devices to evenly distribute pressing forces, leading to potential shifts in swing member attitudes.

Innovation Solution

A workpiece holding device utilizing annular elastic members and cylindrical members to uniformly restrict swing members' movements through controlled expansion of elastic members against cylindrical surfaces, eliminating the need for load sensors and simplifying the device configuration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If load sensors and control devices are added to evenly distribute pressing forces, then the stability of swing member attitudes is improved, but the device complexity and weight increase

Engineering Contradiction:

Improveattitude stability of swing membersVSAvoidconfiguration complexity

Core Design Contradiction:

Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The elastic members automatically adjust and distribute pressing forces evenly through their inherent elasticity, without requiring external sensors or control systems. The system serves itself by using the physical properties of elastic materials to achieve force equilibrium

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

Elastic members are introduced as intermediary elements between the actuators and swing axes. These intermediaries naturally distribute the pressing forces uniformly, eliminating the need for complex control mechanisms while maintaining attitude stability

Inventive Principle:

Principle #24Intermediary (Mediator)

2Stability of the object's composition

If load sensors and control devices are added to evenly distribute pressing forces, then the stability of swing member attitudes is improved, but the weight of the device increases

Engineering Contradiction:

Improveattitude stability of swing membersVSAvoiddevice weight

Core Design Contradiction:

Stability of the object's compositionVSWeight of moving object

Solution Approach 1:

The elastic members automatically adjust and distribute pressing forces evenly through their inherent elasticity, without requiring external sensors or control systems. The system serves itself by using the physical properties of elastic materials to achieve force equilibrium

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

Elastic members are introduced as intermediary elements between the actuators and swing axes. These intermediaries naturally distribute the pressing forces uniformly, eliminating the need for complex control mechanisms while maintaining attitude stability

Inventive Principle:

Principle #24Intermediary (Mediator)

3Stability of the object's composition

If multiple actuators are used to restrict swing movements, then the stability of swing member attitudes is improved, but the device complexity increases

Engineering Contradiction:

Improveattitude stability of swing membersVSAvoidnumber of components

Core Design Contradiction:

Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The function of multiple actuators is merged into a single actuator that works with elastic members. The elastic members distribute the force from one actuator to multiple swing axes, reducing the total number of actuators while maintaining stability control

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

Elastic members are introduced as intermediary elements between the actuators and swing axes. These intermediaries naturally distribute the pressing forces uniformly, eliminating the need for complex control mechanisms while maintaining attitude stability

Inventive Principle:

Principle #24Intermediary (Mediator)

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

This configuration achieves a simplified and lightweight design that prevents swing member attitude shifts while allowing for adjustable pressure control, enhancing processing accuracy and efficiency.

Implementation Method 1

an annular first elastic member held by a first holder in a freely expandable and contractible manner

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentUS20260109001A1Workpiece holding device

Publication Date: 2026.04.23 NISSIN PROSOL CO LTD

AI summary

A workpiece holding device includes a first cylindrical member fixed to a base member while an inner side surface faces an outer circumferential surface of a first holder via a first elastic member, a first swing restrictor to, by causing the first elastic member to expand and pressing an entire outer side of the first elastic member against an inner side surface of the first cylindrical member, restrict a first swing member from moving with respect to the base member, a second cylindrical member fixed to the first swing member while an inner side surface faces an outer circumferential surface of a second holder via a second elastic member, and a second swing restrictor to, by causing the second elastic member to expand and pressing an entire outer side of the second elastic member against an inner side surface of the second cylindrical member, restrict a second swing member from moving with respect to the first swing member.