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Angle size accurate measuring method of sine protractor

An accurate measurement, sine gauge technology, applied in the direction of angle/taper measurement, etc., can solve problems such as the inability to guarantee accuracy, and achieve the effect of convenient measurement, high measurement accuracy, and guaranteed measurement accuracy.

Inactive Publication Date: 2012-12-12
房增寿
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Problems solved by technology

[0002] At present, in the mechanical processing of other types of work such as fitter file matching or molds, the dimensional accuracy and shape accuracy of simple angles or tapers of medium and small parts are usually guaranteed by indirect measurement with measuring sticks, but when encountering dovetails, multi-angles, or Accuracy cannot be guaranteed when there is no measurement standard such as the straightness of a cone or the existing measuring tool cannot be measured.

Method used

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  • Angle size accurate measuring method of sine protractor
  • Angle size accurate measuring method of sine protractor
  • Angle size accurate measuring method of sine protractor

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Embodiment Construction

[0012] The determination of basic data mainly determines the value of h (h is the height from the front end line on the upper surface of the sine gauge to the marking platform). For the same angle α of the same sine gauge, the height of h is constant, so once the h of the commonly used angle is determined, it can be used repeatedly when encountering the same angle. When measuring, use a measuring rod with a diameter of d (accuracy grade 1) to assist in the measurement. When measuring, use the height gauge to measure the height &1 from the top of the measuring stick to the marking platform (the measurement error of the height gauge is slightly larger and inaccurate), and you can use the gauge block to form a &1 height, and set the lever dial indicator to zero, such as image 3 As shown; after the zero alignment, push the dial indicator to measure the actual accurate height from the top of the measuring stick to the marking platform at this time, such as Figure 4 shown.

[00...

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Abstract

An indirect angle measuring and control method is applied in mechanical machining such as bench work filing or mould machining and measurement of small sheet metal angles. On a layout platform, a work piece to be measured is placed on a sine protractor, the work piece angle is converted into a plane by utilizing the sine protractor principle and measuring blocks, a cushion iron is absorbed under a magnetic force seat of a lever indicator, the measuring blocks are used for spelling the actual height between the angle plane and the layout platform, and the dial indicator is subjected to zero setting to measure the work piece angle. The angle size accurate measuring method is simple, practical and accurate and reliable in measurement.

Description

Technical field: [0001] The invention relates to a method for indirectly measuring and controlling angles, especially when the angles of medium and small sheet materials cannot be measured by existing measuring tools in fitter filing or mold processing. Background technique: [0002] At present, in the mechanical processing of other types of work such as fitter file matching or molds, the dimensional accuracy and shape accuracy of simple angles or tapers of medium and small parts are usually guaranteed by indirect measurement with measuring sticks, but when encountering dovetails, multi-angles, or Accuracy cannot be guaranteed when there is no measurement standard such as the straightness of a cone or if the measurement cannot be performed with an existing measuring tool. Invention content: [0003] In order to overcome the deficiencies of existing measurement methods, the present invention mentions the combined use of sine gauges, gauge blocks, dial indicators and marking...

Claims

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Application Information

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IPC IPC(8): G01B5/24
Inventor 房增寿王仲民
Owner 房增寿
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