Identical Frame Design for C and X Kinematics Welding Pliers

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Solution Overview

Problem

Current welding clamps, particularly those with C and X kinematics, lack a unified frame design that allows for synergy in supply, management, and modularity across different sizes and kinematics, leading to inefficiencies in component supply and assembly operations.

Innovation Solution

A clamp design featuring a common, preferably identical, frame for both C and X kinematics that enables a rigid connection between the frame and a carrier element, allowing for modular construction and shared components, thereby simplifying the supply and management of components and enhancing modularity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If different frame designs are used for C and X kinematics clamps, then each clamp can be optimized for its specific kinematics, but component supply and management become complex and inefficient

Engineering Contradiction:
Improvekinematics optimizationVSAvoidcomponent supply complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies universality by designing a common frame structure that serves both C and X kinematics clamps. The frame includes standardized mounting locations for the actuator, articulation subassembly, and carrier element connection, allowing the same frame to support different kinematic configurations. This enables component interchangeability and simplifies supply chain management while maintaining kinematics-specific optimization through configurable articulation mechanisms.

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

2Device complexity

If a common frame is used for both C and X kinematics, then component supply and management are simplified, but the frame must accommodate different kinematic configurations

Engineering Contradiction:
Improvecomponent supply simplicityVSAvoidkinematics compatibility
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent applies segmentation by dividing the clamp into modular components: a common frame, a configurable articulation subassembly, and interchangeable actuator assemblies. The frame provides the standardized base structure, while the articulation subassembly can be configured for either C or X kinematics. This modular approach allows the common frame to accommodate different kinematic configurations through standardized interfaces and mounting locations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies dynamics by designing the articulation subassembly with adjustable characteristics. The subassembly includes mounting locations and connection points that can be configured to provide either the parallel motion characteristics of C kinematics or the rotational characteristics of X kinematics. This dynamic configurability allows the same frame to support multiple kinematic modes while maintaining structural integrity.

Inventive Principle:
Principle #15Dynamics

3Reliability

If separate designs are used for C and X clamps, then each design can be optimized for its specific function, but assembly operations and storage become less efficient

Engineering Contradiction:
Improvekinematics-specific optimizationVSAvoidassembly efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent applies preliminary action by pre-configuring the frame with standardized mounting locations, pre-drilled holes, and predetermined attachment points for the articulation subassembly and actuator. This preliminary preparation during frame manufacturing enables rapid assembly of different kinematic configurations without requiring custom fabrication or complex alignment procedures, thereby improving assembly efficiency while maintaining kinematics-specific optimization.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP2081727B1Family of pliers for clamping sheet metal having identical frames, and plier of such family
Publication Date: 2018.06.27 ARO WELDING TECH
  • EP2081727B1 patent drawingFigure 1
  • EP2081727B1 patent drawingFigure 2a
  • EP2081727B1 patent drawingFigure 2b

AI summary

The invention relates to pliers for clamping plates (1) used in conjunction with a manipulator arm, comprising a rigid frame (10) connected to a carrier such as a rigid stand or robot, and an articulation sub-assembly (12) connected to the frame (10) and comprising a fixed arm (3), a mobile arm (8), and a main actuator (4) for displacing the mobile arm (8) in translation or rotation relative to the fixed arm (3) for closing or opening the pliers and respectively clamping the plate assembly (1) between the arms (3, 8) or releasing said assembly (1), wherein said pliers belong to a family of pliers comprising C- and X-shaped pliers, the frame having a similar shape and appearance for all the pliers of said family. Application mainly in the family of C- and X-shaped resistance-welding pliers having similar and preferably identical frames.