Adjustable Oscillation Drive Eccentric Superimposition
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing oscillating drives lack a simple method to adjust the maximum oscillation angle, requiring complex adjustments between eccentrics, which limits versatility and efficiency in various applications.
Innovation Solution
The oscillating drive design allows for continuous adjustment of the relative position between two eccentrics, enabling additive or subtractive superimposition of their movements by reversing the direction of rotation, thereby changing the oscillation amplitude between predetermined limits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed oscillation angle is used in the oscillation drive, then the drive structure remains simple, but the adaptability to different applications and tools is limited
Solution Approach 1:
The patent applies the dynamics principle by making the oscillation angle adjustable rather than fixed. The drive system allows dynamic modification of the oscillation amplitude through a mechanism that changes the effective eccentricity, enabling adaptation to different applications and tools while maintaining a relatively simple overall structure.
Solution Approach 2:
The patent implements parameter changes by modifying the oscillation angle parameter through a mechanical adjustment mechanism. By changing the effective eccentricity distance between the drive axis and the tool spindle axis, the system can adapt to different application requirements without fundamentally altering the drive structure.
2Productivity
If a large oscillation angle is used, then work progress speed increases, but the drive may be overloaded especially with tools having large inertia
Solution Approach 1:
The system allows dynamic adjustment of the oscillation angle to match the specific tool and application requirements. Tools with large inertia can operate at smaller angles to avoid overloading, while tools with small inertia can utilize larger angles for faster work progress, optimizing the balance between productivity and power consumption.
Solution Approach 2:
By enabling continuous or discrete adjustment of the oscillation angle parameter, the system can optimize performance for different tool configurations. The adjustable parameter allows users to select appropriate oscillation angles that maximize productivity without exceeding the drive's power capacity.
3Reliability
If a small oscillation angle is used, then the drive is protected from overload, but work progress speed decreases
Solution Approach 1:
The adjustable oscillation mechanism enables the system to dynamically adapt the oscillation amplitude to protect the drive from overload while maintaining acceptable productivity. Users can select smaller angles for heavy-duty applications with high-inertia tools to ensure reliable operation.
Solution Approach 2:
The system allows modification of the oscillation angle parameter to balance reliability and productivity. By reducing the oscillation angle when necessary, the drive operates within safe power limits, preventing overload while still achieving work progress through cumulative oscillation cycles.
4Adaptability or versatility
If complex adjustment mechanisms are used to change oscillation angle, then adaptability improves, but ease of operation deteriorates
Solution Approach 1:
The patent implements a dynamic adjustment mechanism that allows oscillation angle changes without requiring complex manual intervention. The design enables straightforward modification of the effective eccentricity through a simplified mechanical arrangement, improving ease of operation while maintaining adaptability.
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 design simplifies the adjustment of oscillation amplitudes, allowing for precise control between small and large angles, optimizing performance for different tools and applications by easily switching between additive and subtractive superimposition of eccentricities.
Implementation Method 1
an oscillation drive with a drive (26) and with an eccentric coupling drive for converting a rotary motion of the drive (26) into a rotary oscillating motion of a tool spindle (20) about its longitudinal axis (21), wherein the eccentric coupling drive has an eccentric (34) driven by the drive (26) with a first eccentricity
Implementation Method 2
Since the effects of the eccentric and the additional eccentric overlap, a resulting movement occurs which can be varied between extremes, namely between an additive superposition in which the two eccentricities add up, and between a position in which a minimal amplitude results, since the two eccentricities overlap subtractively
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An oscillation drive (10) is described, comprising a drive and an eccentric coupling drive for converting a rotary motion of the drive into a rotary oscillating motion of a tool spindle about its longitudinal axis. The eccentric coupling drive includes an eccentric driven by the drive with a first eccentricity (e1), which interacts with a coupling element coupled to the tool spindle to convert the motion of the eccentric into a rotary oscillating motion of the tool spindle. The eccentric is coupled to an additional eccentric (36) with a second eccentricity (e2), such that the eccentricities (e1, e2) are superimposed. To change the amplitude of the oscillation movements of the tool spindle, the relative position between the eccentric and the additional eccentric (36) is adjustable to at least two different positions.