Dual-Axis Feeding Fixture for Precise Workpiece Posture Control
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Solution Overview
Problem
Conventional feeding devices are limited in their ability to maintain objects in specific postures, particularly rotating them about both horizontal and vertical axes, which is essential for efficient cleaning and handling of complex shapes like engine components.
Innovation Solution
The feeding device employs a dual-axis rotation mechanism with a first saddle rotating about a vertical axis and a second saddle rotating about a horizontal axis, utilizing propeller shafts, transmission devices, and power conversion mechanisms to decelerate and control the rotation of a holding device, allowing for precise posture control of objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional feeding device with single-axis rotation is used, then the device structure is simple, but the ability to maintain objects in specific postures is limited
Solution Approach 1:
The patent implements a nested dual-axis rotation mechanism where the first saddle (rotating about vertical axis) and second saddle (rotating about horizontal axis) are arranged in a nested configuration. The second saddle is positioned on the first saddle, allowing both rotation axes to be integrated in a compact structure. This nesting approach enables complex posture control while minimizing structural footprint and complexity.
Solution Approach 2:
The patent transitions from single-axis rotation to dual-axis rotation by introducing a second rotation dimension. The first saddle provides rotation about a vertical axis, while the second saddle adds rotation about a horizontal axis perpendicular to the first. This dimensional expansion enables the holding device to achieve orientations in three-dimensional space, significantly improving posture control capability.
2Measurement precision
If propeller shafts and transmission devices are added to transmit torque from driving sources to saddles, then precise rotation control is achieved, but the device complexity increases
Solution Approach 1:
The patent introduces propeller shafts as intermediary elements to transmit torque from the driving sources to the saddles. The first propeller shaft transmits torque from the first driving source to the first saddle, while the second propeller shaft transmits torque from the second driving source to the second saddle. These intermediary shafts enable precise rotation control by providing dedicated torque transmission paths for each axis, isolating the control mechanisms.
Solution Approach 2:
The patent segments the torque transmission system into two independent paths: one for vertical axis rotation and another for horizontal axis rotation. Each path has its own propeller shaft and transmission device, allowing independent control and optimization of each rotation axis. This segmentation simplifies the control architecture while achieving precise dual-axis rotation control.
Data Source
AI summary
A feeding device includes a feed base that is horizontally installed, a first driving source and a second driving source, a first saddle, a second saddle, a first propeller shaft, a second propeller shaft, a first transmission device, a second transmission device, and a holding device. The first saddle rotates about a first axis that goes along a vertical direction. The second saddle is disposed at the first saddle. The second saddle rotates about a second axis. The second axis goes along a horizontal direction. The first propeller shaft transmits a torque from the first driving source. The second propeller shaft transmits a torque from the second driving source. The first transmission device transmits a rotation of the first propeller shaft to the first saddle. The second transmission device transmits a rotation of the second propeller shaft to the second saddle. The holding device holds the object.