Adjustable Spindle Motion Measuring Device for Circular Path Precision
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Solution Overview
Problem
Conventional devices for examining the precision of a working spindle's motion along a circular path are limited to examining only one circular path diameter due to the fixed separation of the measuring sensor's link points relative to the spindle and cylindrical surface, restricting their ability to assess different diameter sizes.
Innovation Solution
The device allows for the adjustable and fixable mounting of the measuring sensor transversely to the spindle and cylindrical surface axes, enabling continuous adjustment up to 1200 mm with 1/100 mm precision, allowing examination of various circular cylindrical surface diameters without additional extensions, using a pivotable clamping device and threaded adjusting nuts for exact diameter adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the measuring sensor is fixed with a defined separation of link points, then the device can examine one single circular path diameter, but it cannot examine different circular path diameters
Solution Approach 1:
The measuring sensor is mounted on a device part that can be continuously adjusted radially towards or away from the working spindle axis, allowing the separation distance to be dynamically changed. This enables examination of different circular path diameters by adjusting the radial position, transforming a fixed-configuration device into an adaptable one without requiring multiple fixed extensions
Solution Approach 2:
The adjustable mounting mechanism serves multiple functions: it can examine various circular path diameters, maintain precise measurement accuracy, and replace the need for multiple fixed extensions. The single device structure universalizes the measurement capability across different diameter ranges
2Adaptability or versatility
If additional extensions are used to examine different diameters, then fixed defined diameters can be examined, but the device cannot be adjusted continuously and requires multiple fixed components
Solution Approach 1:
Instead of using multiple fixed extensions for different diameters, the invention implements a dynamically adjustable mounting that can be continuously repositioned radially. This allows operators to adjust the measuring sensor to any required diameter within the maximum range, eliminating the need to swap between fixed extensions
Solution Approach 2:
The invention changes the key parameter of measuring sensor separation distance from a fixed value to a continuously adjustable parameter. By enabling continuous adjustment of the radial position, the device can adapt to different diameter requirements through parameter variation rather than structural reconfiguration
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 precise examination of circular cylindrical surfaces with diameters differing by up to 1/100 mm, facilitating the assessment of different circular path diameters without the need for multiple measuring arms or extensions, enhancing the device's versatility and accuracy.
Implementation Method 1
The device part that can be fixed to the machine table, in particular, by magnetic force
Data Source
AI summary
The invention concerns a device for examining the precision of motion of a working spindle of an NC-controlled machine tool along a circular path for producing circular cylindrical surfaces on workpieces, comprising a first device part which can be coaxially mounted to the working spindle, a second device part which can be positioned on a machine table, which receives a workpiece to be processed, coaxially to the axis of a circular cylindrical surface to be produced on the workpiece, an electronic measuring value sensor which extends radially with respect to the axes of working spindle and circular cylindrical surface and is hinged to both device parts, and a shaft encoder which is rotatably disposed in the second device part coaxial relative to the axis of the circular cylindrical surface to be produced to determine the angular position of the measuring value sensor, wherein the measuring value sensor is held on one of the two device parts such that it can be adjusted and fixed transversely to the axes of the working spindle and the circular cylindrical surface.