CN217032300U - Simple device for measuring arc radius - Google Patents

Simple device for measuring arc radius Download PDF

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Publication number
CN217032300U
CN217032300U CN202220733990.XU CN202220733990U CN217032300U CN 217032300 U CN217032300 U CN 217032300U CN 202220733990 U CN202220733990 U CN 202220733990U CN 217032300 U CN217032300 U CN 217032300U
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China
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radius
arc
dial indicator
hole
horizontal rod
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CN202220733990.XU
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Chinese (zh)
Inventor
常闯
顾云鹏
周江山
李猛
田晓兵
赵文芬
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713th Research Institute of CSIC
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713th Research Institute of CSIC
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Abstract

The utility model provides a simple device for measuring the arc radius, which comprises a horizontal rod arranged horizontally, wherein vertical rods are arranged at two ends of the horizontal rod, tips are arranged at the lower end of each vertical rod, the two tips are symmetrical about the center of the horizontal rod, a through hole is formed in the center of the horizontal rod, a dial indicator or a dial indicator capable of moving up and down is arranged in the through hole, a dial indicator body of the dial indicator or the dial indicator is fixed with the through hole through a clamp, and the direction of a measuring head of the dial indicator or the dial indicator is consistent with the direction of the tip. The measuring device can measure the radius of the inner arc and the radius of the outer arc, and is convenient to measure the arch height or the arc height, thereby being convenient to measure the radius of the reading arc.

Description

Simple device for measuring arc radius
Technical Field
The utility model relates to the measurement of arc radius, in particular to a simple device for measuring the arc radius, which can measure the inner arc radius and the outer arc radius.
Background
At present, in the field of mechanical detection, the measurement of the radius of an incomplete arc of an arc workpiece, particularly the radius of an incomplete arc with a central angle less than 180 degrees, mainly depends on the measurement of an arc template or a tape measure, and the like, a large amount of template materials are required for manufacturing the arc template, the operation is difficult, the measurement accuracy is low, the storage and the transportation are inconvenient, in addition, the position of the center of the arc is difficult to accurately find out in the measurement of the tape measure, the error of measuring the radius of the arc is large, the efficiency is low, and the measurement accuracy is directly influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a simple device for measuring the arc radius, which can measure the inner arc radius and the outer arc radius, and is convenient for measuring the arch height or the arc height, thereby being convenient for measuring and reading the arc radius.
The technical scheme of the utility model is as follows: the utility model provides a simple and easy measurement circular arc radius's device, includes the horizon bar that a level set up, and the horizon bar both ends set up and are equipped with vertical pole, and vertical pole lower extreme is equipped with most advanced, and two most advanced are about the central symmetry of horizon bar, and the through-hole has been seted up at the horizon bar center, are equipped with percentage table or the amesdial that can reciprocate in the through-hole, fix through the clamp between the table body of percentage table or amesdial and the through-hole, and the gauge head of percentage table or amesdial is unanimous with most advanced orientation.
The inner side surface of the tip and the inner side surface of the vertical rod are on the same vertical side, or the outer side surface of the tip and the outer side surface of the vertical rod are on the same vertical surface.
The clamp is fixed at the lateral part of through-hole upper end.
The simple device for measuring the radius of the circular arc has the advantages that the device has strong practicability, particularly for measuring the radius of an incomplete circular arc with the central angle smaller than 180 degrees, the symmetrical tip is contacted with the circular arc wall, the symmetrical tip is contacted with the inner wall or the outer wall of the circular arc to measure the radius, the inner circular arc or the outer circular arc is measured, the chord lengths are consistent, and the problem that the chord lengths are changed when the horizontal end is contacted with the positions of the inner wall and the outer wall of the circular arc is avoided; the center of the chord length actually measured is ensured to be on the same vertical line with the center of the horizontal rod. In addition, by using the dial indicator or the dial indicator, the measured arch height or arc height can be read through the moving distance diameter of the probe of the dial indicator or the dial indicator, namely the arc height corresponding to the actually measured chord length, the measurement is quick, and the calculation is less.
The radius measuring device can measure the radiuses of various specifications and types of arc workpieces (including inner arcs and outer arcs), does not need to repeatedly manufacture arc templates, greatly reduces production cost and improves working efficiency.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a schematic view of the application of the arc radius measuring device of the present invention.
FIG. 3 is a schematic view of the geometrical relationship of the arch height, the chord length and the radius of the inner arc measuring device.
FIG. 4 is a schematic view of the geometrical relationship between the arch height, the chord length and the radius of the outer arc measuring device.
Fig. 5 is a schematic structural view of the clip.
Detailed Description
While the utility model will be described in detail and with reference to the drawings and specific examples, it is to be understood that the utility model is not limited to the precise construction and details shown and described herein, but is capable of numerous rearrangements and modifications as will now become apparent to those skilled in the art. In the present invention, unless otherwise specifically defined and limited, technical terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention pertains.
As shown in fig. 1-4, a device for simply measuring the arc radius comprises a horizontal rod 1 horizontally arranged, vertical rods 5 are arranged at two ends of the horizontal rod, tip ends 6 are arranged at the lower ends of the vertical rods, the two tip ends 6 are symmetrical with respect to the center of the horizontal rod 1, a through hole is formed in the center of the horizontal rod, a dial indicator or a dial indicator 3 capable of moving up and down is arranged in the through hole, a dial indicator body or a dial indicator is fixed with the through hole through a clamp 2, and a measuring head of the dial indicator or the dial indicator is consistent with the orientation of the tip ends.
The clamp 2 is fixed on the side part of the upper end of the through hole.
The clamp 2 is a conventional clamp. As shown in fig. 5, the structure of the yoke 2 may be as follows: the clamp 2 includes that the clamp 2 is annular clamp body 11 and two clamp connectors 10, and the both ends of clamp body are equipped with and connect 10, have seted up connect the through hole on two relative joints 10, have worn in the connect hole and have or not take the screw rod 12 of nut, and after the screw rod 12 passed the connecting hole, it was screwed up through the nut that corresponds on with screw rod 12 to rotate on the screw rod through the nut 8 elasticity to the table body of percentage table or amesdial 3. Or the connecting through hole is a threaded hole without a nut, the screw rod corresponds to the thread on the threaded hole, and the dial indicator or the dial indicator body 8 of the dial indicator 3 is loosened and tightened by rotating the screw rod.
Or a screw hole, and a screw with a nut penetrates through the screw hole. The clamp 2 is fixed with the horizontal rod 1 below or on the side of one end opposite to the two joints, and the length direction of the screw rod is parallel or vertical to the length direction of the horizontal rod 1.
If a dial indicator is used for measuring the radius, the use method comprises the following steps:
[1] and a dial indicator body 8 of the dial indicator 3 is vertically fixed with the horizontal rod 1 through the hoop 2.
[2] The assembled arc radius measuring device is placed on a horizontal platform, such as a 0-grade marble slab, and the dial indicator is adjusted to be 0'.
[3] Placing the circular arc radius measuring device on the circular arc work piece 4 that awaits measuring, keeping most advanced 6 and circular arc inner wall or outer wall in close contact with of two vertical poles 5 lower extreme of horizon bar 1, loosening the nut on the screw rod on the clamp or directly rotating screw rod, then remove percentage table 3 for gauge head 9 and circular arc inner wall or outer wall in close contact with of percentage table 3, then directly read the reading of 3 dials 7 of percentage table, perhaps read the reading of 3 dials 7 of percentage table after fixing through clamp 2.
[4] And obtaining the radius of the arc to be measured by an arch height chord length method.
The working principle of the utility model is as follows:
as shown in fig. 3 and 4, the arch height h is determined by reading the dial indicator, the length S of the horizontal rod 1 is provided, and the size of the arc radius R is obtained by the arch height chord length method, namely R =
Figure DEST_PATH_IMAGE001
This application is through the most advanced and the circular arc inner wall or the outer wall contact measurement radius of using the symmetry, surveys interior circular arc or outer circular arc, and the chord length is unanimous, when avoiding using horizontal end contact circular arc inner wall and outer wall position, the problem that the chord length changes. The center of the actually measured chord length and the center of the horizontal rod are ensured to be on a vertical line. In addition, by using the dial indicator or the dial indicator, the measured arch height or arc height can be read through the moving distance diameter of the probe of the dial indicator or the dial indicator, namely the arc height corresponding to the actually measured chord length, the measurement is quick, and the calculation is less. The arc radius measuring device obtains the size of the arc radius by reading the reading of the dial indicator 3 through an arch height chord length method.
The inner side surface of the tip and the inner side surface of the vertical rod are on the same vertical side, or the outer side surface of the tip and the outer side surface of the vertical rod are on the same vertical surface.
The simple arc radius measuring device designed by the utility model has strong practicability, particularly can be used for measuring the radius of an incomplete arc with a central angle smaller than 180 degrees, can realize the radius measurement of arc workpieces 4 (including inner arcs and outer arcs) with various specifications and types, does not need to repeatedly manufacture arc templates, greatly reduces the production cost and improves the working efficiency.
The above description is only a preferred embodiment of the present invention, not all embodiments, and the scope of the present invention is not limited thereto, and each feature of the above-described embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of each feature of the above-described embodiments are not described, however, as long as there is no contradiction between these combinations of features, the scope of the present description should be considered as the scope of the present description. When combinations of technical solutions are mutually inconsistent or cannot be realized, such combinations should not be considered to exist and are not within the scope of the claimed invention. It should be noted that those skilled in the art and any person skilled in the art can equally substitute or change the technical solution of the present invention and the inventive concept thereof, and make several changes and improvements without departing from the spirit of the present invention and the general concept thereof, and these should be considered as the protection scope of the present invention.

Claims (3)

1. The utility model provides a simple and easy measurement circular arc radius's device which characterized in that: the horizontal rod that sets up including a level, the horizontal rod both ends set up and are equipped with vertical pole, and vertical pole lower extreme is equipped with most advanced, and two most advanced are about the central symmetry of horizontal rod, and the through-hole has been seted up at the horizontal rod center, are equipped with percentage table or amesdial that can reciprocate in the through-hole, fix through the clamp between the table body of percentage table or amesdial and the through-hole, and the gauge head and the most advanced orientation of percentage table or amesdial are unanimous.
2. The apparatus for measuring the radius of a circular arc according to claim 1, wherein: the inner side surface of the tip and the inner side surface of the vertical rod are on the same vertical side, or the outer side surface of the tip and the outer side surface of the vertical rod are on the same vertical surface.
3. The apparatus for measuring the radius of a circular arc according to claim 1, wherein: the clamp is fixed at the lateral part of through-hole upper end.
CN202220733990.XU 2022-03-31 2022-03-31 Simple device for measuring arc radius Active CN217032300U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202220733990.XU CN217032300U (en) 2022-03-31 2022-03-31 Simple device for measuring arc radius

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220733990.XU CN217032300U (en) 2022-03-31 2022-03-31 Simple device for measuring arc radius

Publications (1)

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CN217032300U true CN217032300U (en) 2022-07-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116753812A (en) * 2023-07-10 2023-09-15 北京中丽制机工程技术有限公司 A measuring tool and arc radius detection method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116753812A (en) * 2023-07-10 2023-09-15 北京中丽制机工程技术有限公司 A measuring tool and arc radius detection method

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