Multi-Axis Impact Turbine Blasting for Large Workpieces
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Solution Overview
Problem
Existing abrasive blast treatment technologies for large-scale workpieces face inefficiencies and limitations in energy consumption, labor intensity, and operational complexity, particularly with pneumatic treatment, while wheel blast machines are limited by the fixed position of impact turbines, leading to non-uniform treatment and excessive abrasive consumption.
Innovation Solution
A machine with a multi-part kinematic mechanism, including a global and regional kinematic mechanism, allows the impact turbine to be moved and oriented within the working chamber, providing variable impact positions and efficient abrasive jet direction, coupled with an abrasive recirculation and feeding system, to optimize treatment uniformity and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If pneumatic treatment is used for abrasive blast treatment of large-scale workpieces, then the treatment can be performed with simple equipment structure, but the energy consumption is high and labor intensity is high
Solution Approach 1:
The patent replaces the pneumatic system (which uses compressed air to propel abrasive grains) with a mechanical wheel blast system. The wheel blast machine uses a rotating wheel with abrasive grains attached to its circumference, where the rotation of the wheel mechanically propels the abrasive grains onto the workpiece surface. This substitution eliminates the need for high-pressure air compressors and reduces energy consumption while maintaining treatment effectiveness.
2Device complexity
If wheel blast machine with fixed impact turbine is used, then the equipment structure is simplified, but the treatment uniformity is poor and abrasive consumption is excessive
Solution Approach 1:
The patent introduces a movable effector system that can dynamically adjust the position and orientation of the impact turbine relative to the workpiece. The effector can move along the workpiece surface and change the angle of abrasive grain impact, allowing for uniform treatment across complex geometries. This dynamic adjustment capability ensures consistent treatment quality while reducing abrasive consumption by optimizing the impact angle and distance.
Solution Approach 2:
The patent adds movement in multiple dimensions to the effector system, allowing the impact turbine to move not only horizontally along the workpiece but also vertically and angularly. This multi-dimensional movement capability enables the treatment head to access various surfaces and angles of large-scale workpieces, ensuring uniform treatment coverage that would be impossible with a fixed-position turbine.
3Device complexity
If fixed position impact turbine is used in wheel blast machine, then the device complexity is reduced, but the versatility for different workpiece geometries is limited
Solution Approach 1:
The effector system is designed with multiple degrees of freedom, allowing it to dynamically adjust its position and orientation to match the geometry of different workpieces. The impact turbine can move along tracks or rails and change its angular position, enabling effective treatment of flat surfaces, curved surfaces, and complex geometries without requiring multiple fixed turbines for different configurations.
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
Enables efficient, energy-saving, and automated abrasive treatment of large-scale workpieces with improved uniformity and versatility, overcoming the limitations of both pneumatic and wheel blast machines by allowing the impact turbine to be maneuvered and oriented freely within the working chamber.
Implementation Method 1
The effector, the impact turbine is a device driven by an electric motor, which gives the kinetic energy of the abrasive through the rotation of the impact wheel with blades
Implementation Method 2
The impact of the abrasive is dispersed in the working chamber
Data Source
AI summary
The subject of the invention is an abrasive blast machine for surfaces of large-scale workpieces comprising a housing (O) constituting a working chamber, a kinematic mechanism for moving the effector, an abrasive recirculation system, an effector feeding system with recirculated abrasive, characterized in that the kinematic mechanism is a multipart kinematic mechanism (MK) with at least four-axis, and in that, the effector is an impact turbine (T), which produces the treatment tool and directs it to the workpiece.