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Gauge for calibration of shaft cross section contour parameter measuring instrument

A shaft section and gauge technology, which is applied in the direction of mechanical counter/curvature measurement, etc., can solve the problems of large gauge size, large volume and weight, and large number of gauges

Inactive Publication Date: 2015-12-23
NAT INST OF METROLOGY CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the calibration of a wide range of measuring instruments, the gauges to be used are larger in size and number, and the full size gauges are bulkier and heavier

Method used

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  • Gauge for calibration of shaft cross section contour parameter measuring instrument
  • Gauge for calibration of shaft cross section contour parameter measuring instrument
  • Gauge for calibration of shaft cross section contour parameter measuring instrument

Examples

Experimental program
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Effect test

Embodiment Construction

[0017] see figure 1 and figure 2 , The specific implementation of the present invention is as follows: the substrate 1 is combined with different types of standard blocks 2 to form the required gauge. According to the measurement method, it can replace two types of gauges, the inner dimension and the outer dimension.

[0018] When replacing the outer dimension gauge, the bottom surface 7 and the inner positioning surface 5 of the gauge are used for positioning, and the measuring part is the outer measuring surface 3 .

[0019] The outer measuring surface 3 is made up of a flat surface and a special shape surface (as shown in the figure, a thread shape surface). When the outer measuring surface 3 is parallel to the axis, the straight surface can form a standard cylindrical plug gauge; the threaded surface can form a standard cylindrical threaded plug gauge. When the outer measuring surface 3 has a certain included angle with the axis, the straight surface can constitute a s...

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PUM

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Abstract

The invention discloses a combined gauge, for simulating the shaft cross section contour shape of a gauge with a revolving shaft and providing a standard unit for calibration of a shaft cross section contour parameter measuring instrument. The gauge is formed by combining a substrate 1 with a standard block 2. The substrate 1 is used for simulating the positioning mode of a standard gauge, and the intersecting lines between measuring surfaces 3 / 4 of the standard block 2 and the shaft cross section of the substrate 1 can replace shaft cross section contours of a cylindrical / conical / special bus-shaped plug gauge and a ring gauge. The manufacture is easy, the traceability is high, the disadvantages of large weight and large volume of a conventional gauge are overcome, gauges with different specifications can be formed according to the need of the measuring scope of a calibrated instrument, and the traceability of the calibrated instrument is effectively realized.

Description

1. Technical field [0001] The invention relates to a combined gauge, which is especially suitable for calibrating a measuring instrument for checking the shape parameters of the axial section of a rotary axis symmetrical part by means of a scanning method. 2. Background technology [0002] It is a commonly used quality inspection technology to detect the shape parameters of the axial section of the rotary axis symmetrical parts. [0003] The measuring instrument for the shape parameters of the shaft section obtains the original measurement data by scanning the geometric contour of the shaft section of the rotary axis symmetric part, and obtains the independent measurement results of each parameter of the contour by processing the raw data. Its main feature is to use the shape or center hole of the tested part to determine its axial section, and to collect and process data on the profile of the axial section. [0004] When calibrating the measuring instrument of the shape pa...

Claims

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Application Information

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IPC IPC(8): G01B5/20
Inventor 王为农位恒政裴丽梅任国营
Owner NAT INST OF METROLOGY CHINA