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A simple turning tool protractor

A technology of protractors and turning tools, applied in the direction of measuring angle/taper gauges, measuring gauges, etc., can solve the problems of time-consuming and labor-intensive teaching, and it takes more than an hour to measure one or two, so as to achieve good teaching effect and structure Simple, scientific measure of effectiveness

Active Publication Date: 2017-11-07
SHAOGUAN COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When students use ordinary protractors to measure the angle of the turning tool, it usually takes more than an hour to measure one or two basic angles of the turning tool. The teaching is time-consuming and labor-intensive.

Method used

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  • A simple turning tool protractor
  • A simple turning tool protractor
  • A simple turning tool protractor

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Embodiment Construction

[0019] Such as figure 1 , figure 2 and image 3 As shown, a simple turning tool protractor includes a base ruler 1, a rotary ruler 2, and a sliding ruler 3. The base ruler 1 is a right-angled L-shaped, divided into a horizontal end 11 and a vertical end 12, and a fan-shaped dial 13 is provided at its corner, and the scale range is -40° to 90°. The rotating ruler 2 is a right-angled L-shaped, with its corner facing downwards, and is rotatably connected with the center of the sector scale 13. The fan-shaped dial 13 is provided with an arc-shaped slide groove 131 concentric with the fan-shaped dial 13; a pointer 132 is installed on the fan-shaped dial 13; the boss of the pointer 132 is embedded in the arc-shaped slide groove 131 and connected to one end of the rotary scale 2. The pointer 132 can slide along the arc-shaped sliding groove 131, and a reading hole 133 is provided in the middle of the pointer 132 for reading the angle indicated by the pointer 132. The sliding ruler 3...

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Abstract

The invention discloses a simple turning tool protractor. The simple turning tool protractor comprises a basic ruler, a rotary ruler and a sliding ruler. The basic ruler is of an L shape and is divided into a horizontal end and a vertical end, and a fan-shaped dial is arranged at the corner of the basis ruler. The rotary ruler is of an L shape, wherein the corner of the rotary ruler faces downwards, and the rotary ruler is rotatably connected with the circle center of the fan-shaped dial. An arc-shaped sliding groove is formed in the fan-shaped dial. A pointer is mounted on the dial. A boss of the pointer is mounted in the arc-shaped sliding groove in an embedded mode and connected with one end of the rotary ruler. The pointer can slide along the arc-shaped sliding groove. The sliding ruler is of an L shape, wherein one end of the sliding ruler is parallel to the horizontal end of the basic ruler, and the other end of the sliding ruler is connected with the vertical end of the basic ruler in a sliding mode. The basic ruler and the sliding ruler constitute an F-shaped whole. The simple turning tool protractor has the advantages that in the same two-dimensional plane, five basic turning tool angles can be measured, and the turning tool angles are obtained directly; the measuring efficiency is improved, the structure is simple, a scientific measuring method is adopted, cost is low, and a good teaching effect is achieved.

Description

Technical field [0001] The invention relates to a teaching aid and instrument, in particular to a simple turning tool angle measuring device which can facilitate classroom turning tool angle measurement teaching and improve teaching efficiency. Background technique [0002] There are many kinds of universal angle devices sold on the market, but most of them have more parts, and the measurement methods are relatively simple. Some professional turning tools and measuring tools even cost thousands of dollars and are relatively expensive. Classroom teaching emphasizes teaching efficiency and considers students' acceptance ability, as well as how to make mechanical students better understand the definition of turning tool angle and quickly measure the corresponding angle of turning tool. The common protractor has many parts, and the measurement process needs to be continuously re-disassembled and assembled to measure other angles of the turning tool. This has brought a lot of trouble...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B3/56
Inventor 肖耘亚李小平邝浩丰陈冠雄黄维坤陈梓博耿忠胜
Owner SHAOGUAN COLLEGE
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