3D Variable-Axis Machine Spindle Pivoting Frames

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Solution Overview

Problem

Conventional multi-axis machining machines for large-size workpieces are complex and expensive due to their large and intricate structures, making them unsuitable for processing large-size workpieces efficiently and economically.

Innovation Solution

A 3D variable-axis machine with a simple structure featuring a single spindle that moves in upward, downward, leftward, and rightward directions, utilizing arch-shaped forward and backward pivoting frames and leftward and rightward pivoting frames connected to a sliding member, allowing for 3D processing without the need for multiple main axes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple main axes are used for processing large-size workpieces, then processing capability is improved, but device complexity and cost increase

Engineering Contradiction:

Improveprocessing capabilityVSAvoidstructure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges multiple axis functions into a single spindle system. The spindle is supported by arch-shaped pivoting frames that enable multi-directional movement (upward, downward, leftward, rightward) through rotational joints, combining what would traditionally require separate axes into one integrated processing head.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The single spindle serves multiple functions by being capable of movement in multiple directions through the pivoting frame mechanism. The arch-shaped frames with rotational joints allow the spindle to perform operations equivalent to multiple axes while maintaining a unified structure.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple main axes are used for processing large-size workpieces, then processing capability is improved, but manufacturing cost increases

Engineering Contradiction:

Improveprocessing capabilityVSAvoidmanufacturing cost

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent employs a simpler, more economical structure by replacing expensive multi-axis machinery with a single spindle system supported by arch-shaped pivoting frames. This approach uses fewer components and simpler mechanisms, thereby reducing manufacturing cost while maintaining processing capability.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

3Device complexity

If a single spindle is used for 3D processing, then device complexity is reduced, but movement precision in multiple directions may deteriorate

Engineering Contradiction:

Improvestructure complexityVSAvoidmovement precision

Core Design Contradiction:

Device complexityVSManufacturing precision

Solution Approach 1:

The patent employs dynamic pivoting frames with rotational joints that allow the spindle to move smoothly in multiple directions. The arch-shaped frames are designed to rotate around specific points, enabling precise control of the spindle's position and orientation through controlled rotational motion.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The pivoting frames act as intermediary mechanisms between the fixed base and the spindle. These frames with rotational joints serve as mediators that translate simple rotational movements into complex multi-directional spindle positioning, maintaining precision while simplifying the overall structure.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS8152423B23-dimensional variable-axis machine

Publication Date: 2012.04.10 KOREA INST OF MACHINERY & MATERIALS

AI summary

A 3-dimensional (3D) variable-axis machine is disclosed, which includes a frame spaced from a base to be disposed at an upper surface of a workpiece, a pair of forward and backward pivoting frames having an arch shape connected to the frame, a pair of leftward and rightward pivoting frames having an arch shape and a relatively less height than the forward and backward pivoting frames to be connected across the forward and backward pivoting frames, and a spindle vertically inserted in an intersectional portion between the forward and backward and the leftward and rightward pivoting frames to be pivoted corresponding to movements of the both pivoting frames. The spindle is connected to a sliding member, and the sliding member is connected to a lower surface of the forward and backward pivoting frames and an upper surface of the leftward and rightward pivoting frames in a sliding manner.