Motor Spindle With Integrated Rotor Drive for Angle Head Rotation
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Solution Overview
Problem
Motor spindles in machine tools require additional setup time and resources due to the need for separate power supplies and complex mechanical systems for rotatable angle heads, limiting flexibility and increasing operational costs.
Innovation Solution
A motor spindle with an integrated additional electric motor allows independent adjustment and rotation of the rotor, enabling multiple functionalities without a separate power supply, and can replace conventional spindles with passive angle heads, allowing for machining in smaller spaces and reducing setup times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If rotatable angle heads with complex mechanical systems and separate power supplies are used, then multi-axis machining functionality is achieved, but device complexity and operational costs increase
Solution Approach 1:
The patent combines the angle head rotation function directly into the motor spindle by integrating a second electromagnetic drive system that can independently rotate the rotor. This merges previously separate systems (spindle drive and angle head rotation) into a single integrated unit, eliminating complex external mechanical switching systems and separate power supplies while maintaining multi-axis machining capability
Solution Approach 2:
The motor spindle is designed with multi-functionality by enabling the rotor to perform both traditional spindle rotation and angle head rotation functions. The second electromagnetic drive system allows the rotor to be driven independently or simultaneously with the rotor shaft, creating a universal device that can achieve various machining orientations without additional specialized equipment
2Adaptability or versatility
If rotatable angle heads with additional power supplies are used, then tool orientation adjustment is enabled, but operational costs and setup time increase
Solution Approach 1:
The patent merges the power supply and control systems by integrating the second electromagnetic drive directly into the motor spindle structure. This eliminates the need for separate external power supplies and complex mechanical switching systems that previously required additional setup time and increased operational costs
Solution Approach 2:
The motor spindle performs self-service by using its own integrated second electromagnetic drive system to rotate the rotor and achieve angle head orientation adjustment. This self-contained system eliminates dependence on external complex mechanical systems and separate power supplies, reducing setup time and operational complexity
3Device complexity
If passive angle heads are used, then structural simplicity is maintained, but flexibility and machining capability in various orientations are limited
Solution Approach 1:
The patent transforms the static passive angle head into a dynamic system by integrating the second electromagnetic drive system that can independently rotate the rotor. This dynamic capability allows the angle head to adjust its orientation actively during machining operations, providing machining flexibility in various orientations while maintaining relatively simple integration within the existing motor spindle structure
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 solution enhances flexibility and reduces operational costs by eliminating the need for separate power supplies and complex mechanical systems, enabling efficient machining in various orientations and smaller cavities with standardized tools, while maintaining high accuracy and allowing for easy maintenance and replacement of components.
Implementation Method 1
a first electromagnetic drive system (12), which drives a rotor shaft (26) about an axis of rotation (15)
Implementation Method 2
a second electromagnetic drive system (20), in particular a motor, which can rotate the rotor (23) independently or simultaneously with the rotor shaft (26)
Data Source
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AI summary
The invention relates to a motor spindle having a first electromagnetic drive system, wherein a stator unit is provided and a rotor unit is provided which can rotate about an axis of rotation and has at least one rotor shaft and a tool receiver for receiving a machining tool, wherein at least one bearing unit is provided for rotationally mounting the rotor unit in the stator unit, wherein the tool receiver is arranged in an end region of the rotor unit, wherein the stator unit has at least one stator housing with an end section arranged at least in the end region of the rotor unit, wherein said motor spindle can be more flexibly used and/or same reduces constructional or economic output. According to the invention, this in achieved in that the stator unit comprises at least one motor, having a second electromagnetic drive system, with a stator and a rotational rotor, wherein the rotor has at least one rotational housing element of the end section of the stator unit.