Symmetric 5-Axis Cutter Grinding Machine Thermal Deformation
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Solution Overview
Problem
Existing grinding machines face issues with thermal deformation during the grinding process, leading to reduced machining accuracy and efficiency due to heat generation, which affects the stability of the grinding wheel, workpiece, and machine components.
Innovation Solution
A fully symmetric 5-axis cutter grinding machine with a symmetric structure, including a grinding machine base and pillar, sliding rails, torque motors, and spindle motors arranged symmetrically to improve stability and facilitate error compensation, allowing the grinding wheels to freely rotate 360 degrees for enhanced heat dissipation and reduced vibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional grinding machine structure is used, then the grinding process can be performed, but thermal deformation occurs leading to reduced machining accuracy
Solution Approach 1:
The patent applies asymmetry principle by designing a symmetric structural layout where identical components are arranged symmetrically about a central plane. The bed body includes symmetrically arranged guide rails, support columns, and motor assemblies that balance thermal generation and dissipation across the structure, preventing localized thermal accumulation and deformation.
Solution Approach 2:
The patent changes structural parameters by implementing a symmetric configuration of thermal paths and support structures. The symmetric arrangement of motors, guide rails, and support columns creates balanced thermal fields and uniform stress distribution, reducing thermal deformation effects on machining accuracy.
2Productivity
If the grinding wheel rotates at high speed for efficient grinding, then productivity increases, but heat generation increases causing thermal deformation
Solution Approach 1:
The patent converts the harmful heat generation during high-speed grinding into a beneficial uniform thermal field through symmetric structural design. The symmetric arrangement of motors, support columns, and cooling channels distributes heat evenly throughout the structure, preventing localized thermal deformation while maintaining high grinding productivity.
3Manufacturing precision
If a complex error compensation system is implemented to improve machining accuracy, then manufacturing precision increases, but device complexity increases
Solution Approach 1:
The patent extracts and eliminates the need for complex error compensation systems by designing a symmetric structure that inherently minimizes machining errors. The symmetric arrangement of components prevents thermal deformation and mechanical errors at the source, rather than requiring complex post-correction systems.
4Manufacturing precision
If the grinding machine structure is made more rigid to improve stability, then manufacturing precision improves, but the machine becomes more susceptible to thermal deformation
Solution Approach 1:
The patent applies symmetric structural design where rigid components are arranged symmetrically about a central plane. The bed body, support columns, guide rails, and motor assemblies are positioned to create thermal and mechanical balance, allowing the structure to maintain rigidity for precision while distributing thermal loads uniformly to prevent deformation.
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 symmetric design reduces machining errors, improves accuracy and efficiency, extends the service life of the machine, and simplifies error compensation by ensuring uniform temperature distribution and balanced dynamic features.
Implementation Method 1
a lower part of the torque motor is connected to a horizontally provided spindle by means of a bearing of a rotation table, grinding wheels rotating around an axis of the spindle
Implementation Method 2
the big pulley is connected to a spindle pulley by a wide synchronous belt, the spindle pulley is disposed around a middle of the spindle so as to drive the spindle to rotate
Data Source
AI summary
A fully symmetric cutter grinding machine with 5-axis includes a grinding machine base and a pillar, sliding rails are vertically arranged on an inside of the pillar, the sliding rails are provided with a grinding wheel head bracket, the grinding wheel head bracket comprises torque motors vertically provided, a lower part of the torque motor is connected to a horizontally provided spindle by means of a bearing of a rotation table, grinding wheels rotating around an axis of the spindle are symmetrically provided at two sides of the spindle, the grinding wheel head bracket further comprises a big rotatable pulley provided at an upper part of the grinding wheel head bracket and driven to rotate by spindle motors, the big pulley is connected to a spindle pulley by a wide synchronous belt.