Oscillating Plate Vibratory System for Drilling
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Solution Overview
Problem
Existing vibratory drilling systems face limitations in adjusting frequency and amplitude, leading to mechanical stress, high costs, and wear due to cam technology, which is not optimal for drilling multi-materials and compact drilling systems.
Innovation Solution
A spindle oscillating system with a drive motor, inclined first plate, and offset second plate, driven at different speeds, allowing adjustable amplitude and frequency through ball joint contact and adjustable inclination and eccentricity, reducing friction and wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cam technology is used to generate oscillations, then vibratory movement is achieved, but friction generates heat and noise, and mechanical stress increases
Solution Approach 1:
The patent replaces traditional cam-based mechanical oscillation generation with a system using inclined plates and ball joints. This substitution eliminates the sliding friction inherent in cam mechanisms by using rolling ball contacts, thereby reducing heat and noise generation while maintaining the vibratory movement function.
Solution Approach 2:
The invention introduces dynamically adjustable parameters including variable inclination angles of the first plate and variable offset distances of the second plate. This allows the system to adapt oscillation characteristics to different drilling conditions, reducing mechanical stress and improving reliability across varying operational requirements.
2Ease of manufacture
If cam geometry is fixed, then manufacturing is simplified, but frequency and amplitude adjustment possibilities are limited
Solution Approach 1:
The system employs dynamically adjustable components where the inclination angle of the first plate and the offset position of the second plate can be varied. This provides continuous adjustment of oscillation frequency and amplitude without requiring different cam geometries, thus maintaining ease of manufacture while achieving high adaptability for different drilling applications.
Solution Approach 2:
The oscillation generation mechanism is divided into separate functional elements: the inclined first plate for frequency control and the offset second plate for amplitude control. This segmentation allows independent adjustment of each parameter through simple geometric modifications rather than requiring complex integrated cam profiles.
3Productivity
If high amplitude oscillations are used during low feed drilling, then chip breaking improves, but mechanical stress on the machining system increases significantly
Solution Approach 1:
The adjustable inclination angle of the first plate and offset distance of the second plate enable precise control of oscillation amplitude independent of feed rate. This allows optimization of amplitude for chip breaking at low feed rates without imposing excessive mechanical stress, as the system can adapt to the specific drilling conditions rather than operating at fixed high amplitude.
4Productivity
If cam technology is used for vibratory drilling, then chip evacuation improves, but wear and breakage of cams occurs, increasing costs
Solution Approach 1:
The patent replaces the cam-based oscillation generation system with an inclined plate and ball joint mechanism. This substitution eliminates the high-contact-stress sliding interfaces of cams, reducing wear and breakage while maintaining the vibratory action necessary for effective chip evacuation during drilling operations.
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 system provides a robust, low-wear, compact solution with adjustable oscillations, enhancing chip breaking efficiency and reducing mechanical stress and costs, suitable for multi-material drilling.
Implementation Method 1
a first plate (2) inclined with respect to said axis of rotation (10)
Implementation Method 2
a second plate (3) swiveled around a center of rotation (30) in a ball joint support (31), said second plate (3) being swiveled on a second axis (34) offset with respect to said axis of rotation (10)
Implementation Method 3
said two plates (2, 3) rotating at different speeds, said two plates (2, 3) being in contact via balls (33)
Data Source
Figure 1~2
Figure 3
AI summary
The present invention relates to an oscillating system (1) comprising at least one drive motor for driving a spindle (4) about an axis of rotation (10), a first plate (2) cooperating with a second plate (3), and is characterized in that the first plate (2) is inclined with respect to the axis of rotation (10), in that the second plate (3) is ball-jointed on a second axis (34) that is offset with respect to the axis of rotation (10), creating an amplitude of oscillations in the spindle (4), in that at least one of the two plates (2, 3) is driven by the drive motor, and in that the two plates (2, 3) rotate at different speeds. The combination of the inclination of the first plate (2) and the eccentricity of the centre of rotation (30) of the second plate (3) makes it possible to create an oscillation in the spindle (4) while it rotates.