Through-Thread Countersinking With a Single-Pass Threading Tool

Solution Overview

Problem

Existing methods for creating through-threads require additional operations and separate tools to remove edges, protrusions, and burrs, leading to increased work and tool expenditure.

Innovation Solution

A method and tool for creating a through-thread with a predefined thread pitch and countersink using a single tool that combines thread creation and countersinking movements, allowing for the formation of a through-thread with a countersink in a single operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If separate tools and operations are used to create through-threads and remove edges/burrs, then manufacturing precision is improved, but device complexity and loss of time increase

Engineering Contradiction:

Improveedge removal precisionVSAvoidtool quantity

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent combines the through-thread creation function and the edge removal function into a single integrated tool. The tool includes thread formation elements for creating internal threads and countersinking elements for removing edges and burrs, allowing both operations to be performed simultaneously in one machining process, thereby reducing device complexity while maintaining manufacturing precision

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The integrated tool is designed with multi-functionality, serving both as a thread-creating tool and an edge-removal tool. The tool can perform thread formation, countersinking, and burr removal operations within a single device, eliminating the need for multiple separate tools and operations

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Manufacturing precision

If separate tools and operations are used to create through-threads and remove edges/burrs, then manufacturing precision is improved, but loss of time increases

Engineering Contradiction:

Improveedge removal precisionVSAvoidprocessing time

Core Design Contradiction:

Manufacturing precisionVSLoss of time

Solution Approach 1:

The patent combines the through-thread creation function and the edge removal function into a single integrated tool. The tool includes thread formation elements for creating internal threads and countersinking elements for removing edges and burrs, allowing both operations to be performed simultaneously in one machining process, thereby reducing device complexity while maintaining manufacturing precision

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The integrated tool enables continuous machining operations where thread formation and edge removal occur simultaneously without interruption. The tool performs both functions in one continuous motion through the workpiece, eliminating the time required for separate operations and tool changes

Inventive Principle:

Principle #20Continuity of useful action

3Ease of manufacture

If multiple tools are used for through-thread creation and edge removal, then ease of manufacture is improved, but productivity decreases

Engineering Contradiction:

Improvetool manufacturing simplicityVSAvoidthrough-thread creation efficiency

Core Design Contradiction:

Ease of manufactureVSProductivity

Solution Approach 1:

The patent combines the through-thread creation function and the edge removal function into a single integrated tool. The tool includes thread formation elements for creating internal threads and countersinking elements for removing edges and burrs, allowing both operations to be performed simultaneously in one machining process, thereby reducing device complexity while maintaining manufacturing precision

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The integrated tool is designed with multi-functionality, serving both as a thread-creating tool and an edge-removal tool. The tool can perform thread formation, countersinking, and burr removal operations within a single device, eliminating the need for multiple separate tools and operations

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12515268B2Method and tool for creating a through-thread

Publication Date: 2026.01.06 EMUGE WERK RICHARD GLIMPEL GMBH & CO KG FABRIK FUER PRAEZISIONSWERKZEUGE

AI summary

In a method for creating a through-thread, thread creation means is moved in a screw-in movement in an axial forward direction (VR) through a workpiece from a first workpiece side to a second workpiece side opposite the first workpiece side such that the end face projects out of the workpiece, wherein the thread creation means is moved through the workpiece, in particular along a first line which is a helical line, wherein then, to create at least one countersink, the thread creation means is moved in a countersinking movement, in particular along a second line that differs from the first line, and wherein, for subsequent withdrawal, the thread creation means is moved back through the workpiece in a screw-out movement in the axial backward direction (RR), in particular at least substantially along the first line.