Inspection Master with Spherical Reference Portions for Five-Axis Measurement
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Solution Overview
Problem
Current inspection masters are limited in performing accuracy inspections for five-axis processing machines and cannot measure in directions oblique to the vertical axis, and there is a lack of suitable inspection tools for five-axis processing machines.
Innovation Solution
The inspection master features peripheral-surface spherical reference portions that protrude laterally or obliquely from the peripheral surface, along with upper-surface hole-shaped reference portions, allowing for accurate measurements in three-axis and five-axis directions, including oblique measurements, by providing spherical bodies and holes that facilitate central coordinate measurement and inclination angle checks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If vertical holes and lateral holes are provided on the inspection master for three-axis measurement, then measurement of three-axis processing machines is enabled, but measurement in directions oblique to the vertical axis cannot be performed
Solution Approach 1:
The peripheral-surface spherical reference portions serve multiple functions: they enable measurement in vertical directions (like traditional vertical holes) and simultaneously enable measurement in oblique directions (new capability). The spherical shape allows the probe to approach from multiple angles while maintaining a single reference point, making the inspection master universally applicable to both three-axis and five-axis processing machines without requiring separate reference structures for different measurement directions
Solution Approach 2:
Replacing traditional vertical holes and lateral holes with spherical reference portions fundamentally changes the geometry from linear/cylindrical to spherical. This curvature allows the spherical probe to contact the reference portion from any direction (vertical, oblique, or horizontal) while maintaining a well-defined contact point, thereby enabling measurement in directions oblique to the vertical axis without adding complex multi-directional hole structures
2Measurement precision
If traditional inspection masters with vertical and lateral holes are used, then three-axis measurement accuracy is maintained, but accuracy inspection for five-axis processing machines cannot be performed
Solution Approach 1:
The inspection master with peripheral-surface spherical reference portions is designed to be universally applicable to both three-axis and five-axis processing machines. The spherical reference portions maintain the high measurement accuracy required for three-axis machines while simultaneously providing the additional oblique direction measurement capability needed for five-axis machine inspection, eliminating the need for separate inspection masters for different machine types
Solution Approach 2:
The invention adds measurement capability in additional dimensions (oblique directions) by using spherical reference portions on the peripheral surface. This dimensional expansion allows the inspection master to accommodate five-axis measurement requirements (which include rotational and tilting movements) while preserving the original three-axis measurement precision through the same spherical reference structures
3Adaptability or versatility
If the inspection master is made inclined for five-axis measurement, then oblique direction measurement is enabled, but measurement accuracy deteriorates without appropriate reference portions
Solution Approach 1:
The spherical shape of the reference portions is crucial for maintaining measurement accuracy when the inspection master is inclined. Unlike cylindrical holes that have fixed directional openings, the spherical surface provides a well-defined contact point from any direction of approach, including oblique angles. This ensures that even when the inspection master is tilted for five-axis measurement, the probe can accurately locate the spherical reference portion without losing measurement precision
Data Source
AI summary
An inspection master can perform three- and five-axis measurements wherein measurement in a rotation axis or/and turning axis direction for a five-axis processing machine is added. In one aspect, peripheral-surface spherical reference portions protrudes laterally on a peripheral surface of a master main body having a tubular shape, including the peripheral surface and an upper surface, and an upper reference ball for detection of an inclination angle of the body protrudes upward on the upper surface. The reference portions are provided at two or more portions of the peripheral surface in a circumferential direction thereof. In another aspect, an upper reference ball protrudes upward on the upper surface, and upper-surface spherical reference portions protrudes upward at one or more portions of the upper surface on an outer side with respect to the ball. In another aspect, both the peripheral-surface and upper-surface spherical reference portions are on the master main body.