Arcuate object radius measurement device and method of use

Abstract

The application relates to the technical field of radius measurement of circular arc objects, in particular to a radius measurement device for circular arc objects and a use method thereof, which comprises an arc-shaped component and two measuring rods, and further comprises: a fixed block, one end of each of the two measuring rods is rotationally connected with the fixed block, a display is fixed on the outer wall of one side of the fixed block through a connecting rod, a pressure sensor is installed on the inner wall of the fixed block, a processor is arranged in the display, and the processor is electrically connected with the pressure sensor; a spring fixing pipe is installed on the inner wall of the spring fixing pipe, a tension spring is installed on the inner wall of the spring fixing pipe, one end of the tension spring is fixedly connected with one side of the pressure sensor, and a sleeve is fixedly installed on the outer wall of one side of the fixed block. The application can realize rapid measurement of the radius of the arc-shaped component, does not need manual calculation, can obtain the radius data of the arc-shaped component through simple operation steps, greatly shortens the measurement time, and improves the efficiency and accuracy during measurement.

Description

Technical Field

[0001] This invention relates to the field of radius measurement technology for circular arc objects, specifically to a device for measuring the radius of circular arc objects and its usage method. Background Technology

[0002] Currently, many curved components require dimensional measurement before use. However, measuring the radius of curved objects is difficult and often requires complex calculations and the use of multiple tools, making it impossible to directly obtain radius data. To address these issues, a device for measuring the radius of curved objects and its usage method are proposed. Summary of the Invention

[0003] The purpose of this invention is to provide a device for measuring the radius of a circular arc object and a method for using it, so as to solve the problems mentioned in the background art.

[0004] The technical solution of this invention is: a device for measuring the radius of an arc-shaped object and a method for using it, comprising an arc-shaped component and two measuring rods, and further comprising:

[0005] A fixed block is formed, with one end of each of the two measuring rods rotatably connected to the fixed block. A display is fixed to one outer wall of the fixed block via a connecting rod. A pressure sensor is installed on the inner wall of the fixed block. A processor is installed inside the display, and the processor is electrically connected to the pressure sensor.

[0006] A spring fixing tube is provided, wherein a tension spring is installed on the inner wall of the spring fixing tube, one end of the tension spring is fixedly connected to one side of the pressure sensor, and a sleeve is fixedly installed on one side of the outer wall of the fixing block, and the spring fixing tube is slidably connected to the inner wall of the sleeve.

[0007] The control mechanism includes a gearbox, the inner wall of which is provided with a transmission mechanism, the transmission mechanism including a gear, and a rack is installed on one side of the spring fixing tube, the rack meshing with the gear.

[0008] Preferably, the outer wall of the sleeve is provided with a sliding groove, and the width of the sliding groove is adapted to the rack.

[0009] Preferably, the transmission mechanism includes helical gear one and helical gear two, which mesh with each other. A knob is connected to one side of helical gear one via a rotating shaft, and helical gear two is connected to a gear via a rotating shaft. The gearbox is fixedly installed on the outer wall of the sleeve.

[0010] Preferably, the outer wall of the sleeve is rotatably connected to two support rods via a connecting shaft. A track is fixedly installed on the outer wall of the two measuring rods on their adjacent sides, and one end of each of the two support rods is slidably connected to the inner wall of the track at different positions.

[0011] This invention also proposes a method for using a device for measuring the radius of a circular arc object, the specific steps of which include:

[0012] Step 1: Fully extend the two measuring rods to both sides. At this time, one end of each of the two support rods slides to one end of the track. The tips of the two measuring rods and the tip of the spring fixing tube are on the same straight line. The distance between the tip of one of the measuring rods and the tip of the spring fixing tube is denoted as L.

[0013] Step 2: Then move the entire device to the inner wall of the arc-shaped component, so that the tips of the two measuring rods contact the inner wall of the arc-shaped component;

[0014] Step 3: By rotating the knob, the first helical gear is rotated, and then the second helical gear and the gear are rotated through meshing. Finally, the rack and the spring fixing tube slide on the inner wall of the sleeve, so that the conical tip of the spring fixing tube contacts the inner wall of the arc-shaped component being tested.

[0015] Step 4: The tension spring installed on the inner wall of the spring fixing tube extends, and the pressure sensor is subjected to force under the tension of the tension spring. Using Huke's law, the distance ΔX from the tip of the spring fixing tube to the arc-shaped component in the initial state is obtained according to the elastic coefficient K of the tension spring and the tensile force F detected by the pressure sensor. Through the conversion of electronic components and the processing of data by the processor, the radius of the arc-shaped component under test is directly displayed on the display.

[0016] The present invention provides an improved device and method for measuring the radius of a circular object, which, compared with the prior art, has the following improvements and advantages:

[0017] This invention enables rapid measurement of the radius of curved components without manual calculation. The radius data of curved components can be obtained through simple operation steps, which greatly shortens the measurement time and improves the efficiency and accuracy of measurement. Attached Figure Description

[0018] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 This is a schematic diagram of the measurement process of this invention;

[0020] Figure 2 This is a side sectional view of the folded version of the present invention;

[0021] Figure 3 This is a schematic diagram of the folded structure of the present invention;

[0022] Figure 4 This is a cross-sectional view of the spring fixing tube portion in this invention;

[0023] Figure 5This is an overall perspective view of the present invention;

[0024] Figure 6 yes Figure 5 A magnified view of a section at point A in the middle;

[0025] Figure 7 This is a sectional top view and elevation view of the present invention;

[0026] Figure 8 This is a schematic diagram of the measurement data of the present invention;

[0027] Figure 9 This is the calculation formula of the present invention.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Arc-shaped component; 2. Measuring rod; 3. Display; 4. Support rod; 5. Gearbox; 51. Knob; 52. Gear; 53. Helical gear one; 54. Helical gear two; 6. Spring fixing tube; 7. Tension spring; 8. Pressure sensor; 9. Rack; 10. Track; 11. Sleeve; 12. Fixing block. Detailed Implementation

[0030] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] This invention provides an improved device for measuring the radius of a circular arc object and a method for using it. The technical solution of this invention is as follows:

[0032] Example 1:

[0033] like Figures 1-7 As shown, the radius measuring device for an arc-shaped object includes an arc-shaped component 1 and two measuring rods 2, and also includes:

[0034] The fixed block 12 has one end of each of the two measuring rods 2 rotatably connected to it. The outer wall of one side of the fixed block 12 is fixed with a display 3 via a connecting rod. The inner wall of the fixed block 12 is equipped with a pressure sensor 8. The display 3 is equipped with a processor. The processor is electrically connected to the pressure sensor 8. By writing the calculation formula of trigonometric functions, the measurement efficiency is improved by eliminating the need for manual calculation during measurement.

[0035] A spring fixing tube 6 has a tension spring 7 installed on its inner wall. One end of the tension spring 7 is fixedly connected to one side of the pressure sensor 8. A sleeve 11 is fixedly installed on one side of the outer wall of the fixing block 12. The spring fixing tube 6 is slidably connected to the inner wall of the sleeve 11. The top end of the spring fixing tube 6 is conical.

[0036] The control mechanism includes a gearbox 5, and a transmission mechanism is provided on the inner wall of the gearbox 5. The transmission mechanism includes a gear 52, and a rack 9 is installed on one side of the spring fixing tube 6. The rack 9 meshes with the gear 52.

[0037] Furthermore, a groove is provided on the outer wall of the sleeve 11, and the width of the groove is adapted to the rack 9.

[0038] Furthermore, the transmission mechanism includes helical gear 1 53 and helical gear 2 54, which mesh with each other. A knob 51 is connected to one side of helical gear 1 53 via a rotating shaft. Helical gear 2 54 is connected to gear 52 via a rotating shaft. Gearbox 5 is fixedly installed on the outer wall of sleeve 11. By rotating knob 51, gear 52 is driven to rotate through the meshing of helical gear 1 53 and helical gear 2 54.

[0039] Furthermore, the outer wall of the sleeve 11 is rotatably connected to two support rods 4 via a connecting shaft. A track 10 is fixedly installed on the outer wall of the two measuring rods 2 on the side closest to each other. One end of the two support rods 4 is slidably connected to the inner wall of the track 10 at different positions. The track 10 is used to limit the unfolding angle of the measuring rods 2.

[0040] Working principle: The scheme first fully unfolds the two measuring rods 2, then directly places the tips of the two measuring rods 2 against the inner wall of the arc-shaped component 1. Then, by rotating the knob 51, the meshing between the helical gear 1 53 and the helical gear 2 54, and the meshing between the gear 52 and the rack 9, the tip of the spring fixing tube 6 is driven to slide towards the inner wall of the arc-shaped component 1. At this time, since the elastic coefficient K of the tension spring 7 is fixed, the distance ΔX from the tip of the spring fixing tube 6 to the inner wall of the arc-shaped component 1 can be obtained using Hooke's law. Before measurement, the distance L between the measuring rod 2 and the tip of the spring fixing tube 6 can be obtained. Then, the radius value can be directly read from the display 3 using trigonometric functions.

[0041] In summary, this device can quickly measure the radius of the arc-shaped component 1 without manual calculation. The radius data of the arc-shaped component 1 can be obtained through simple operation steps, which greatly shortens the measurement time and improves the efficiency and accuracy of the measurement.

[0042] Example 2:

[0043] like Figures 1-9As shown, based on the first embodiment of this application providing a radius measuring device for an arc-shaped object, the second embodiment of this application proposes a method for using the radius measuring device for an arc-shaped object, the specific steps of which include:

[0044] Step 1: Fully extend the two measuring rods 2 to both sides. At this time, one end of each of the two support rods 4 slides to one end of the track 10. The tips of the two measuring rods 2 and the tip of the spring fixing tube 6 are on the same straight line. The distance between the tip of one of the measuring rods 2 and the tip of the spring fixing tube 6 is denoted as L.

[0045] Step 2: Then move the entire device to the inner wall of the arc-shaped component 1, so that the tips of the two measuring rods 2 contact the inner wall of the arc-shaped component 1;

[0046] Step 3: By rotating the knob 51, the helical gear 53 is driven to rotate, and then the helical gear 54 and gear 52 are driven to rotate through meshing. Finally, the rack 9 and the spring fixing tube 6 slide on the inner wall of the sleeve 11, so that the conical tip of the spring fixing tube 6 contacts the inner wall of the arc-shaped component 1 being tested.

[0047] Step 4: The tension spring 7 installed on the inner wall of the spring fixing tube 6 extends, and the pressure sensor 8 is subjected to force under the tension of the tension spring 7. Using Huke's law, the distance ΔX from the tip of the spring fixing tube 6 to the arc-shaped component 1 in the initial state is obtained based on the elastic coefficient K of the tension spring 7 and the tensile force F detected by the pressure sensor 8. Through the conversion of electronic components and the processing of data by the processor, the radius of the arc-shaped component 1 to be measured is directly displayed on the display 3.

Claims

1. A device for measuring the radius of a circular arc object, comprising an arc-shaped component (1) and two measuring rods (2), characterized in that: Also includes: The fixed block (12) has one end of each of the two measuring rods (2) rotatably connected to the fixed block (12). A display (3) is fixed to one side of the outer wall of the fixed block (12) via a connecting rod. A pressure sensor (8) is installed on the inner wall of the fixed block (12). A processor is installed inside the display (3). The processor is electrically connected to the pressure sensor (8). A spring fixing tube (6) is provided with a tension spring (7) installed on the inner wall of the spring fixing tube (6). One end of the tension spring (7) is fixedly connected to one side of the pressure sensor (8). A sleeve (11) is fixedly installed on the outer wall of one side of the fixing block (12). The spring fixing tube (6) is slidably connected to the inner wall of the sleeve (11). The control mechanism includes a gearbox (5), the inner wall of which is provided with a transmission mechanism, the transmission mechanism including a gear (52), and a rack (9) installed on one side of the spring fixing tube (6), the rack (9) meshing with the gear (52); The transmission mechanism includes a helical gear one (53) and a helical gear two (54), the helical gear one (53) and the helical gear two (54) mesh, a knob (51) is connected to one side of the helical gear one (53) through a rotating shaft, the helical gear two (54) is connected to the gear (52) through a rotating shaft, and the gearbox (5) is fixedly installed on the outer wall of the sleeve (11); The outer wall of the sleeve (11) is rotatably connected to two support rods (4) via a connecting shaft. The outer walls of the two measuring rods (2) are fixedly installed with rails (10) on the side closest to each other. One end of the two support rods (4) is slidably connected to the inner wall of the rails (10) at different positions. The outer wall of the sleeve (11) is provided with a sliding groove, which is adapted to the width of the rack (9).

2. The method of using the radius measuring device for circular arc objects as described in claim 1, characterized in that, The specific steps include: Step 1: Fully unfold the two measuring rods (2) to both sides. At this time, one end of each of the two support rods (4) slides to one end of the track (10). The tips of the two measuring rods (2) and the tip of the spring fixing tube (6) are on the same straight line. The distance between the tip of one of the measuring rods (2) and the tip of the spring fixing tube (6) is denoted as L. Step 2: Then move the entire device to the inner wall of the arc-shaped component (1) and make the tips of the two measuring rods (2) contact the inner wall of the arc-shaped component (1); Step 3: By rotating the knob (51), the first helical tooth (53) is driven to rotate, and then the second helical tooth (54) and the gear (52) are driven to rotate through meshing. Finally, the rack (9) and the spring fixing tube (6) slide on the inner wall of the sleeve (11), so that the conical tip of the spring fixing tube 6 contacts the inner wall of the arc-shaped component (1) being tested. Step 4: The tension spring (7) installed on the inner wall of the spring fixing tube (6) is extended. Under the tension of the tension spring (7), the pressure sensor (8) is subjected to force. Using Huke's law, the distance ΔX from the tip of the spring fixing tube (6) to the arc member (1) in the initial state is obtained according to the elastic coefficient K of the tension spring (7) and the tensile force F detected by the pressure sensor (8). Through the conversion of electronic components and the processing of data by the processor, the radius of the arc member (1) under test is directly displayed on the display (3).

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