Low-Profile X-Y Table Segmented Drive Mechanism
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Solution Overview
Problem
Existing dispensing systems for medicine, particularly those filling vials and blister packs, lack flexibility and precision, often resulting in errors due to the need for multiple machines and the thickness of X-Y tables required by overlapping drive mechanisms.
Innovation Solution
A low-profile X-Y table design that moves in both the X and Y directions without overlapping drive mechanisms, utilizing a platform and frame with separate X and Y drive motors/actuators, allowing for thinner construction and interchangeable platens for various packaging types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If overlapping X-Y drive mechanisms are used, then both X and Y directions can be controlled, but the table thickness increases and device complexity increases
Solution Approach 1:
The drive system is segmented into separate X-axis and Y-axis components. The X-axis drive mechanism (including X-axis motor and lead screw) and Y-axis drive mechanism (including Y-axis motor and lead screw) are positioned at different locations and operate independently, eliminating the need for overlapping mechanisms and reducing table thickness.
Solution Approach 2:
The patent transitions from a planar overlapping drive arrangement to a three-dimensional distributed arrangement. The X-axis and Y-axis drive mechanisms are positioned at different vertical levels and horizontal locations, utilizing the Z-dimension and X-dimension respectively, thereby eliminating overlap in the XY-plane and reducing table thickness.
2Adaptability or versatility
If overlapping X-Y drive mechanisms are used, then both X and Y directions can be controlled, but device complexity increases
Solution Approach 1:
The drive system is segmented into separate X-axis and Y-axis components. The X-axis drive mechanism (including X-axis motor and lead screw) and Y-axis drive mechanism (including Y-axis motor and lead screw) are positioned at different locations and operate independently, eliminating the need for overlapping mechanisms and reducing table thickness.
Solution Approach 2:
The frame structure serves multiple functions: it supports the platform, provides mounting locations for both X-axis and Y-axis drive mechanisms, and maintains precise geometric relationships between all components. This multi-functional design reduces overall system complexity by consolidating structural and functional elements.
3Manufacturing precision
If thicker tables are used to accommodate overlapping drive mechanisms, then both X and Y directions can be controlled, but precision is reduced
Solution Approach 1:
The drive system is segmented into separate X-axis and Y-axis components. The X-axis drive mechanism (including X-axis motor and lead screw) and Y-axis drive mechanism (including Y-axis motor and lead screw) are positioned at different locations and operate independently, eliminating the need for overlapping mechanisms and reducing table thickness.
Solution Approach 2:
The platform acts as an intermediary component that connects the X-axis and Y-axis drive mechanisms to the dispensing head. It provides a rigid mounting surface that maintains precise positional relationships between all drive components and the dispensing mechanism, ensuring accuracy without requiring excessive table thickness.
Data Source
AI summary
An X-Y table includes a platform and a frame which has an X and Y-truck trough. An X-plane truck is slideably held in the X-truck trough. A Y-plane truck is slideably held in the Y-truck trough. As the motor/actuator with drive mechanisms moves the frame in an X-direction the Y-truck moves through the Y-trough and as the motor/actuator with drive mechanisms moves the frame in a Y-direction the X-truck moves through the X-trough, thereby moving the frame in both the X-direction and the Y-direction.