Electrode Cap Removal Clamp Combining Straight and Helical Teeth

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Solution Overview

Problem

Existing devices for removing electrode caps from electrode shafts in resistance spot welding methods face issues with process reliability, particularly due to premature uncontrolled release and increased rotational angles required for secure removal, especially when using straight-toothed or helical-toothed jaws separately.

Innovation Solution

A removal device combining a straight-toothed clamping device and a helical-toothed clamping device is used, allowing for early initiation of rotational movement and secure fixation against axial movement, ensuring reliable release and placement of the electrode cap.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a straight-toothed clamping device is used, then the electrode cap can be fixed, but premature uncontrolled release occurs and process reliability decreases

Engineering Contradiction:

Improveprocess reliabilityVSAvoiduncontrolled release risk

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent combines straight-toothed clamping devices and helical-toothed clamping devices in a single removal tool. The straight-toothed jaws provide initial gripping and centering, while the helical-toothed jaws provide secure fixation and prevent uncontrolled release during the removal process, thereby resolving the reliability issue.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

Different regions of the clamping device have different tooth configurations - straight teeth in some jaws and helical teeth in others. This local differentiation allows each jaw type to perform its specific function optimally, with straight teeth for initial engagement and helical teeth for secure holding.

Inventive Principle:

Principle #3Local quality

2Reliability

If a helical-toothed clamping device is used, then secure fixation against axial movement is achieved, but the rotational angle required for removal increases

Engineering Contradiction:

Improvesecure fixationVSAvoidrotational angle required

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The removal tool integrates both straight-toothed and helical-toothed clamping devices. The straight-toothed jaws enable early initiation of rotational movement with a smaller rotational angle, while the helical-toothed jaws maintain secure fixation throughout the process, thus resolving the contradiction between secure fixation and rotational angle requirements.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The clamping function is segmented into two distinct jaw types with different tooth configurations. The straight-toothed jaws handle the initial gripping and early rotation phase, while the helical-toothed jaws provide continuous secure fixation, dividing the removal process into functional segments.

Inventive Principle:

Principle #1Segmentation

3Speed

If only straight-toothed jaws are used, then early initiation of rotational movement is possible, but fixing against axial movement is insufficient

Engineering Contradiction:

Improverotational movement initiationVSAvoidfixing against axial movement

Core Design Contradiction:

SpeedVSReliability

Solution Approach 1:

The patent merges straight-toothed and helical-toothed clamping devices in the same removal tool. The straight-toothed jaws enable early rotational movement initiation, while the helical-toothed jaws simultaneously provide reliable fixation against axial movement, resolving the contradiction between speed and reliability.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

Different jaws have different tooth qualities - straight teeth optimized for rapid rotational initiation and helical teeth optimized for axial fixation. This local quality differentiation allows each jaw type to excel at its specific function without compromising the other.

Inventive Principle:

Principle #3Local quality

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

The combination of straight-toothed and helical-toothed clamping devices provides process-reliable release and secure holding of the electrode cap, preventing uncontrolled loss and optimizing the rotational process for efficient removal.

Implementation Method 1

The at least one electrode cap removal device comprises a clamping device for fixing the electrode cap to be removed. The clamping device comprises a combination of a straight-toothed clamping device and a helical-toothed clamping device.

Methodology Applied

Scientific EffectFriction: Friction

Implementation Method 2

The combination of straight-toothed and helical-toothed clamping devices provides process-reliable release and secure holding of the electrode cap, preventing uncontrolled loss

Methodology Applied

Scientific EffectMechanical interlocking: Mechanical Fastener

Implementation Method 3

The combination of straight-toothed and helical-toothed clamping devices provides process-reliable release and secure holding of the electrode cap, optimizing the rotational process for efficient removal.

Methodology Applied

Scientific EffectMechanical force: Mechanical Force

Data Source

PatentUS20240217025A1System for drawing off the electrode caps from electrode adapters

Publication Date: 2024.07.04 BRAUER SYSTTECHN

AI summary

A system for removing an electrode cap from an electrode shaft. The system includes at least one electrode cap removal device which is mounted to rotate about a tool axis of rotation. The at least one electrode cap removal device has a clamping device for fixing the electrode cap to be removed. The clamping device is a combination of a straight-toothed clamping device and a helical-toothed clamping device.