Rotating Penetrator Holder for Precision Hardness Testing
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Solution Overview
Problem
Current hardness testing devices require time-consuming and inaccurate object reorientation for multiple measurements, especially when non-circular impressions need to be aligned relative to the object edge, leading to inefficiencies and imprecision.
Innovation Solution
The holder of the hardness testing device is designed to rotate around its longitudinal axis, allowing the penetrator to be precisely oriented electronically or manually to match a target position, using a reference point system to determine and store the correction angle of rotation for automatic alignment during measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the object under test is rotated to align the impression with a specified orientation, then the measurement precision is improved, but the measurement time increases and the process becomes more complex
Solution Approach 1:
Instead of rotating the object under test to align the impression with a reference orientation, the patent inverts the approach by rotating the penetrator holder relative to the object. The penetrator is mounted on a holder that can rotate around the longitudinal axis, allowing the penetrator orientation to be adjusted while the object remains stationary. This inversion eliminates the need for time-consuming object repositioning while achieving the same alignment precision.
Solution Approach 2:
The penetrator holder is designed with dynamic rotational capability around its longitudinal axis, allowing the penetrator orientation to be adjusted flexibly. The holder can be rotated manually or electronically to position the penetrator at the required angle relative to the object edge, enabling rapid reorientation without moving the heavy object under test.
2Measurement precision
If the object under test is manually reoriented for each measurement, then the correct orientation is achieved, but the productivity decreases due to time-consuming adjustments
Solution Approach 1:
The penetrator holder is pre-configured with rotational adjustment capability and reference markings that indicate the correct orientation relative to the object edge. Before measurements begin, the holder can be positioned at the required angle once, and this orientation is maintained throughout the measurement series, eliminating the need for repeated manual adjustments during the measurement process.
Solution Approach 2:
The patent replaces the mechanical process of manually rotating and repositioning the object with an electronic or controlled rotational mechanism for the penetrator holder. The holder can be rotated precisely to the required angle using electronic controls or preset mechanisms, and the position is maintained automatically, substituting manual mechanical adjustment with a more efficient controlled system.
3Loss of information
If the penetrator produces a non-circular impression, then specific orientation information is obtained, but the device complexity increases due to the need for rotation mechanisms
Solution Approach 1:
The penetrator holder serves multiple functions: it supports the penetrator, provides rotational adjustment capability, and includes reference markings for orientation indication. This multi-functional design consolidates what could be separate components into a single integrated unit, reducing overall device complexity while maintaining the ability to obtain orientation information from non-circular impressions.
Data Source
AI summary
A hardness testing device has at least one penetrator (9), arranged on a holder (15), for producing an impression (27) in an object under test (3) and at least one lens (12) for detecting at least one measure of the impression (27) in the object under test (3), which can be positioned alternately over the object under test (3). The holder (15) is mounted on the hardness testing device (6) in such a way as to be able to rotate around its longitudinal axis.