Direct-Drive Two-Axis Machining Head Pipeline Shield
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Solution Overview
Problem
Conventional direct-drive two-axis machining heads face challenges with limited internal space for pipeline arrangement, leading to poor dynamic stiffness and weight issues, which affect precision machining performance.
Innovation Solution
The design includes a head-drive unit and a shaft-drive unit with strategically positioned motors, brakes, and a pipeline shield to optimize space utilization and enhance braking torque, allowing for better pipeline arrangement and reduced weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the direct-drive motor is disposed on the head-installing interface, then the machining head structure is compact, but the internal available space for pipeline arrangement becomes limited
Solution Approach 1:
The patent applies dimensional reorganization by moving the direct-drive motor from the head-installing interface to the machining head body, and positioning the brake on the outermost rim of the head-installing interface. This spatial redistribution creates internal available space while maintaining structural compactness, resolving the contradiction between volume and device complexity.
2Ease of manufacture
If additional fluid distributor is applied to help pipeline arrangement, then pipeline arrangement becomes feasible, but the total weight of the machining head increases
Solution Approach 1:
The patent merges the pipeline arrangement function directly into the head-installing interface structure by positioning the brake on the outermost rim and optimizing the internal space layout. This integration eliminates the need for additional fluid distributors, achieving ease of pipeline arrangement without increasing total weight.
3Ease of manufacture
If the total weight of the machining head increases, then pipeline arrangement is improved, but the dynamic stiffness performance deteriorates
Solution Approach 1:
The patent resolves this contradiction through dimensional optimization - repositioning components to utilize the outermost rim of the head-installing interface and optimizing internal space distribution. This allows adequate pipeline arrangement while maintaining a lighter structure with improved dynamic stiffness performance.
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 configuration increases dynamic stiffness by 4% to 63.3% in different axes, improving machinability and reducing the risk of pipeline damage, while maintaining a lighter structure.
Implementation Method 1
a first brake mounted at an outermost rim of either the first motor seat or the stator of the first motor for braking the axis-A supporter... a second brake mounted at an outermost rim of the second motor seat for braking the shaft connector
Data Source
AI summary
A direct-drive two-axis machining head includes a head-drive unit and a shaft-drive unit. The head-drive unit includes a head-installing interface, a first motor, an axis-A supporter, and a first brake mounted at an outermost rim of either a first motor seat or a stator of the first motor for braking the axis-A supporter. The shaft-drive unit further includes an axis-A-installing interface, a second motor, a shaft connector, and a second brake mounted at an outermost rim of a second motor seat of the second motor for braking the shaft connector. The head-drive unit further includes a fixation sheet metal and a pipeline shield. The fixation sheet metal connects the rotor seat. One end of the pipeline shield connects the fixation sheet metal, while another end thereof connects the head-installing interface so as to shield a plurality of pipelines.