Adjustable three-point inside micrometer indication error calibration device

By designing an adjustable three-point inner diameter micrometer display error calibration device, using the combination of equilateral triangle grooves and measuring blocks, the problem of difficulty in calibrating various specifications and sizes in the prior art is solved, and a flexible and convenient and simple operation calibration effect is achieved. , reduces costs.

CN222481307UActive Publication Date: 2025-02-14SHANXI NORTH MACHINE BUILDING
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Patent Information

Application Number
CN202420143184.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-01-19
Publication Date
2025-02-14
Estimated Expiration
2034-01-19

AI Technical Summary

Technical Problem

The prior art is difficult to effectively calibrate the three-point inner diameter micrometer display errors of various specifications, and special ring gauges of different specifications need to be configured, resulting in a large number of specifications, difficult to fit and expensive.

Method used

An adjustable three-point inner diameter micrometer display error calibration device is designed, including a three-point inner diameter micrometer, measuring block, base plate and weight reduction hole. Through the combination of equilateral triangle grooves and measuring blocks, the calibration of various specifications and sizes is achieved. .

Benefits of technology

The standard inner diameter size of any specification size required is realized using existing blocks, which has the effect of flexibility and convenience and simple operation, which reduces costs and solves the calibration problems of various specifications and sizes.

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Abstract

The utility model relates to an indication error calibration device for an adjustable three-point inside micrometer, and belongs to the technical field of measurement and detection. Comprising a three-point inside micrometer (1), a gauge block (2), a bottom plate (4) and lightening holes (3), the bottom plate (4) is a square plate, an equilateral triangle groove is formed in the middle of the bottom plate (4), the three-point inside micrometer (1) is arranged in the groove, the section of the three-point inside micrometer (1) is circular, the arc surface of the three-point inside micrometer (1) is tangent to the two side edges of the equilateral triangle groove, and the gauge block (2) is arranged between the lower portion of the three-point inside micrometer (1) and the bottom edge of the equilateral triangle groove. The inner wall of the equilateral triangle groove and the gauge block (2) form a calibration point size; the bottom plate (4) is provided with a plurality of circular lightening holes (3), so that the required standard inner diameter of any specification can be combined by using the existing gauge block, and the gauge block has the effects of flexibility, convenience and simplicity in operation.
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Description

Technical Field

[0001] The utility model belongs to the technical field of measurement and detection, and specifically relates to an adjustable three-point internal diameter micrometer indication error calibration device. Background Art

[0002] The adjustable three-point internal micrometer indication error calibration device is mainly used to calibrate the indication error of the three-point internal micrometer; the original calibration method uses a special ring gauge for calibration. According to the different measuring ranges, special ring gauges of different specifications need to be configured. The specifications are numerous, difficult to match, and expensive. An adjustable three-point internal micrometer indication error calibration device is now made. It is used in conjunction with ordinary gauge blocks to solve the calibration of indication errors of three-point internal micrometers of various specifications. It is simple to operate and saves costs. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] The technical problem to be solved by the utility model is to provide an adjustable three-point internal diameter micrometer indication error calibration device, which is used to solve the indication error calibration problem of three-point internal diameter micrometers of various specifications.

[0005] (II) Technical solution

[0006] In order to solve the above technical problems, the utility model provides an adjustable three-point internal diameter micrometer indication error calibration device, comprising: a three-point internal diameter micrometer 1, a gauge block 2, a base plate 4 and a weight reduction hole 3;

[0007] The bottom plate 4 is a square plate, an equilateral triangle groove is opened in the middle of the bottom plate 4, a three-point inside diameter micrometer 1 is arranged in the groove, the cross section of the three-point inside diameter micrometer 1 is circular, the arc surface is tangent to the two sides of the equilateral triangle groove, a gauge block 2 is arranged between the bottom of the three-point inside diameter micrometer 1 and the bottom of the equilateral triangle groove, and the calibration point size is formed by the inner wall of the equilateral triangle groove and the gauge block 2;

[0008] The bottom plate 4 is provided with a plurality of circular weight-reducing holes 3 .

[0009] Wherein, the equilateral triangle groove is a grinding working surface with a flatness of 0.002mm and a height of 300mm.

[0010] Wherein, the gauge block 2 is arranged on the midline of the equilateral triangle groove.

[0011] (III) Beneficial effects

[0012] Compared with the prior art, the utility model has the following beneficial effects: it can utilize existing blocks to combine required standard inner diameter sizes of any specifications and sizes, and has the effects of flexibility, convenience and simple operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a top view of the device. DETAILED DESCRIPTION

[0014] In order to make the purpose, content, and advantages of the utility model clearer, the specific implementation methods of the utility model are further described in detail below in conjunction with the drawings and embodiments.

[0015] This embodiment provides an adjustable three-point internal diameter micrometer indication error calibration device, comprising: a three-point internal diameter micrometer 1, a gauge block 2, a base plate 4 and a weight reduction hole 3;

[0016] The bottom plate 4 is a square plate, an equilateral triangle groove is opened in the middle of the bottom plate 4, a three-point inside diameter micrometer 1 is arranged in the groove, the cross section of the three-point inside diameter micrometer 1 is circular, the arc surface is tangent to the two sides of the equilateral triangle groove, a gauge block 2 is arranged between the bottom of the three-point inside diameter micrometer 1 and the bottom of the equilateral triangle groove, and the calibration point size is formed by the inner wall of the equilateral triangle groove and the gauge block 2;

[0017] The bottom plate 4 is provided with a plurality of circular weight-reducing holes 3 .

[0018] Wherein, the equilateral triangle groove is a grinding working surface with a flatness of 0.002mm and a height of 300mm.

[0019] Wherein, the gauge block 2 is arranged on the midline of the equilateral triangle groove.

[0020] The specific working process of this device is as follows:

[0021] Use three-point internal micrometer 1 to calibrate, and the distribution of calibration points. For each measuring range of three-point internal micrometer, no less than three measuring points are calibrated. During calibration, select calibration points according to the measuring range, determine the size of the matching gauge block 2, place the gauge block 2 on the equally divided midline of the device, adjust the probe of the three-point internal micrometer to contact the gauge block 2 and the two isosceles sides, read at each measuring point, and obtain the indication error of each measuring point through data processing.

[0022] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An adjustable three-point internal micrometer indication error calibration device, characterized in that: include: Three-point inside micrometer (1), gauge block (2), base plate (4) and lightening hole (3); The bottom plate (4) is a square plate, an equilateral triangle groove is provided in the middle of the bottom plate (4), a three-point inner diameter micrometer (1) is arranged in the groove, the cross section of the three-point inner diameter micrometer (1) is circular, the arc surface is tangent to the two sides of the equilateral triangle groove, a gauge block (2) is arranged between the bottom of the three-point inner diameter micrometer (1) and the bottom of the equilateral triangle groove, and the calibration point size is formed by the inner wall of the equilateral triangle groove and the gauge block (2); The bottom plate (4) is provided with a plurality of circular weight-reducing holes (3).

2. The adjustable three-point internal micrometer indication error calibration device according to claim 1, characterized in that: The equilateral triangle groove is a grinding working surface with a flatness of 0.002 mm and a height of 300 mm.

3. The adjustable three-point internal micrometer indication error calibration device according to claim 1, characterized in that: The gauge block (2) is arranged on the midline of the equilateral triangle groove.