A glass insulator rapid detection tool and a use method thereof

Abstract

The application relates to a kind of glass insulator rapid detection tool, insulation pressing plate is installed in dovetail sliding groove that is arranged in the two sides of insulation base by dovetail sliding, and I-shaped metal conducting plate is fixed with insulation base by setting compression screw, two rows of blind holes are arranged on insulation base, and through hole is arranged on I-shaped metal conducting plate corresponding to the two rows of blind holes, and glass insulator is installed in blind hole and through hole in a through way.The application also relates to a kind of using method of glass insulator rapid detection tool.The application is reasonable in design, and the clamping of glass insulator is stable, and glass insulator will not fall off, glass insulator is quickly disassembled, glass insulator outer sleeve is in close contact with I-shaped metal conducting plate, which is convenient for accurate detection of insulation resistance detector, and the detection precision is high;And metal conducting plate with different through hole diameters can be replaced according to needs, to meet the detection of glass insulator with different outer diameters, and the detection tool has universality.

Description

Technical Field

[0001] This invention belongs to the field of gyroscope electronic component testing technology, and relates to glass insulator testing, and particularly to a rapid testing fixture for glass insulators and its usage method. Background Technology

[0002] Glass insulators are important components in gyroscope electronic circuits. The glass insulators used in gyroscopes are stepped cylindrical in shape and very small in volume. The outer diameter of most glass insulators is less than 3 mm and the total length does not exceed 5 mm. Insulation performance is one of the important indicators for evaluating the quality of glass insulators, so insulation performance testing of glass insulators is necessary.

[0003] Currently, the main method for testing the insulation of glass is to use two conductive alligator clips to connect to the L and E terminals of the insulation resistance tester, respectively. The two alligator clips are used to clamp the outer jacket and inner post of the glass insulator, and the insulation resistance tester is started and the reading is taken.

[0004] Because glass insulators are very small, during testing, issues such as unstable clamping of the alligator clips, short circuits caused by contact between the two alligator clips, and glass insulators falling off are very common, leading to failure of insulation tests. At the same time, each batch of glass insulators uses more than 1,000 pieces. To ensure the reliability of insulation quality, all insulators are tested, which is a huge workload and causes considerable trouble for the production of related products. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a rapid testing fixture for glass insulators and its usage method.

[0006] The technical problem solved by this invention is achieved through the following technical solution:

[0007] A rapid testing fixture for glass insulators, characterized in that it comprises an insulating base, an I-shaped metal conductive plate, and an insulating pressure plate. The insulating base is I-shaped, with dovetail grooves on both sides. The insulating pressure plate has dovetails on both sides, and the insulating pressure plate is slidably installed within the dovetail grooves via the dovetails. The top and bottom ends of the I-shaped metal conductive plate and the insulating base are provided with clamping screw holes. The I-shaped metal conductive plate and the insulating base are fixed by clamping screws located within the clamping screw holes. The insulating base has two rows of blind holes, and the I-shaped metal conductive plate has through holes corresponding to the two rows of blind holes. Glass insulators are installed through the blind holes and through holes.

[0008] Furthermore, the dovetail grooves on both sides of the insulating base are provided with limit screw holes, and limit screws are installed in the limit screw holes with internal threads. The limit screws have a semi-circular head structure, and the bottom surface of the insulating pressure plate is provided with a semi-circular groove corresponding to the semi-circular head of the limit screw.

[0009] Furthermore, the diameter of the through holes on the I-shaped metal conductive plate is slightly larger than the diameter of the outer jacket of the glass insulator, and all the through holes are arc-shaped holes with a missing corner.

[0010] Furthermore, the dovetail and dovetail groove of the insulating pressure plate are in clearance fit.

[0011] Moreover, both the insulating base and the insulating pressure plate are made of polytetrafluoroethylene.

[0012] A method for using a rapid testing fixture for glass insulators, characterized in that the method comprises the following steps:

[0013] S1. Tooling assembly: Install the limit screws in the corresponding limit screw holes of the insulating base; the I-shaped metal conductive plate corresponds to the I-shaped insulating base and is fastened by the clamping screws; the dovetails on both sides of the insulating pressure plate slide into the dovetail grooves of the insulating base to complete the tooling assembly.

[0014] S2. Fixing the glass insulator: Hold the upper end of the inner column of the glass insulator to be tested with tweezers and place the glass insulator into the through hole of the I-shaped metal conductive plate. The lower end of the inner column of the glass insulator falls into the blind hole of the insulating base. Push the insulating pressure plate inward from the side protruding from the insulating base. The insulating pressure plate slides forward along the dovetail groove. When the bottom surface of the insulating plate contacts the limit screw, the insulating pressure plate bends under the pushing force due to the clearance fit between the dovetail and the dovetail groove. It continues to slide forward past the limit screw. When the semi-circular groove on the bottom surface of the insulating pressure plate coincides with the semi-circular head of the limit screw, the bending deformation of the insulating pressure plate is restored. At this time, the inner side of the insulating pressure plate presses the outer sleeve of the glass insulator tightly, and the outer sleeve of the glass insulator is in close contact with the I-shaped metal conductive plate, thus completing the fixing of the glass insulator.

[0015] S3. Insulation test of glass insulators: Connect the L end of the insulation resistance tester to the alligator clip, clamp the alligator clip to any one of the clamping screws at the top or bottom of the I-shaped metal conductive plate, connect the E end of the insulation resistance tester to the copper probe, start the insulation resistance tester, use the copper probe to contact the upper end of the inner column of the glass insulator one by one, and observe the reading of the insulation resistance tester. If the reading reaches the design requirement value of the glass insulator, it is qualified; if it does not reach the design requirement value, it is unqualified. Record the location of the unqualified insulator, and the insulation test of the glass insulator is completed.

[0016] S4: Glass Insulator Screening: Push the inner side of the insulating pressure plate outward. The insulating pressure plate will bend and deform under the pushing force, and continue to slide outward past the limit screw. Push the insulating pressure plate out of contact with the limit screw. Use tweezers to hold the upper end of the inner column of the glass insulator and remove the unqualified products according to the recorded position. Then remove the remaining qualified products to complete the screening of glass insulators.

[0017] The advantages and beneficial effects of this invention are as follows:

[0018] 1. The glass insulator rapid testing fixture of the present invention can avoid the problems of unstable clamping of the alligator clips, short circuit between the two alligator clips, and glass insulator falling off in the prior art insulation resistance tester. The insulation test is fast, reliable and accurate.

[0019] 2. The glass insulator rapid testing fixture of the present invention has limit screw holes in the dovetail grooves on both sides of the insulating base. Limit screws are installed in the internal threads of the limit screw holes. The limit screws have a semi-circular head structure. The bottom surface of the insulating pressure plate has a semi-circular groove corresponding to the semi-circular head of the limit screw. Both the insulating base and the insulating pressure plate are made of polytetrafluoroethylene, which has a low coefficient of friction, allows the insulating pressure plate to slide smoothly, and makes the operation simple, thus improving the ease of fixture installation.

[0020] 3. In the glass insulator rapid testing fixture of the present invention, when the bottom groove of the insulating pressure plate is disengaged from the limiting screw, it can form a square groove structure with the I-shaped insulating base. When the glass insulator is picked up or put down, the glass insulator that is accidentally dropped can fall into the square groove, thus avoiding the loss of the glass insulator.

[0021] 4. The glass insulator rapid testing fixture of the present invention provides a stable clamping for the glass insulator, is easy to install, and ensures that the outer sleeve of the glass insulator is in close contact with the I-shaped metal conductive plate, which facilitates accurate testing by the insulation resistance tester.

[0022] 5. The glass insulator rapid testing fixture of the present invention has an I-shaped metal conductive plate that is easy to assemble and disassemble. Different through-hole diameter metal conductive plates can be replaced as needed to meet the testing of glass insulators with different outer diameters. The testing fixture has universality.

[0023] 6. The glass insulator rapid testing fixture of the present invention allows for quick assembly and disassembly of glass insulators, is simple and convenient to use, and can quickly complete the insulation test of glass insulators with high testing accuracy. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the glass insulator of the present invention;

[0025] Figure 2 This is a schematic diagram of the component structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the present invention;

[0027] Figure 4 This is a front sectional view of the present invention;

[0028] Figure 5 This is a schematic diagram of the insulating base structure of the present invention;

[0029] Figure 6 This is a schematic diagram of the metal conductive plate structure of the present invention;

[0030] Figure 7 This is a schematic diagram of an embodiment of the present invention.

[0031] Explanation of reference numerals in the attached figures

[0032] 1-Inner post of glass insulator, 2-Outer sleeve of glass insulator, 3-Dovetail, 4-Insulating pressure plate, 5-Insulating base, 6-Clamping screw hole, 7-Clamping screw, 8-Limiting screw, 9-Limiting screw hole, 10-Dovetail groove, 11-Through hole, 12-Semi-circular groove, 13-Blind hole, 14-I-shaped metal conductive plate. Detailed Implementation

[0033] The present invention will be further described in detail below through specific embodiments. The following embodiments are merely descriptive and not limiting, and should not be used to limit the scope of protection of the present invention.

[0034] An innovative tooling for rapid testing of glass insulators includes an insulating base 5, an I-shaped metal conductive plate 14, and an insulating pressure plate 4. The insulating base is I-shaped with dovetail grooves 10 on both sides. The insulating pressure plate has dovetails 3 on both sides, and the insulating pressure plate is slidably installed in the dovetail grooves via the dovetails. The top and bottom of the I-shaped metal conductive plate and the insulating base are provided with clamping screw holes 6. The I-shaped metal conductive plate and the insulating base are fixed by clamping screws 7 located in the clamping screw holes. The I-shaped metal conductive plate is made of copper. The insulating base has two rows of blind holes 13, and the I-shaped metal conductive plate has through holes 11 corresponding to the two rows of blind holes. Glass insulators are installed through the blind holes and through holes.

[0035] The testing fixture of the present invention can avoid the problems of unstable clamping of alligator clips, short circuit between two alligator clips, and falling glass insulators in the prior art insulation resistance tester. The insulation test is fast, reliable and has high accuracy.

[0036] Limit screw holes 9 are provided in the dovetail grooves on both sides of the insulating base. Limit screws 8 are installed in the threads of the limit screw holes. The limit screws have a semi-circular head structure. The bottom surface of the insulating pressure plate is provided with a semi-circular groove 12 corresponding to the semi-circular head of the limit screw. Both the insulating base and the insulating pressure plate are made of polytetrafluoroethylene, which has a low coefficient of friction, allows the insulating pressure plate to slide smoothly, and makes operation simple, thus improving the ease of tooling installation.

[0037] The diameter of the through holes on the I-shaped metal conductive plate is slightly larger than the diameter of the outer sleeve of the glass insulator, and all the through holes are arc-shaped holes with a missing corner.

[0038] The dovetail and dovetail groove of the insulating pressure plate are in clearance fit. When the bottom groove of the insulating pressure plate is disengaged from the limiting screw, it can form a square groove structure with the I-shaped insulating base. When the glass insulator is picked up or put down, the glass insulator that is accidentally dropped can fall into the square groove to avoid the glass insulator being lost.

[0039] The rapid testing fixture for glass insulators of this invention provides a secure clamping solution for glass insulators, facilitates easy installation, and ensures close contact between the glass insulator outer sleeve and the I-shaped metal conductive plate, enabling accurate testing by an insulation resistance tester. The I-shaped metal conductive plate is easy to assemble and disassemble, and can be replaced with metal conductive plates of different through-hole diameters as needed to meet the testing requirements of glass insulators with different outer diameters, making the testing fixture versatile. It is simple and convenient to use, enabling rapid testing of the insulation properties of glass insulators with high accuracy.

[0040] An innovative method for using a rapid testing fixture for glass insulators is described below, with the following steps:

[0041] S1. Tooling assembly: Install the limit screws in the corresponding limit screw holes of the insulating base; the I-shaped metal conductive plate corresponds to the I-shaped insulating base and is fastened by the clamping screws; the dovetails on both sides of the insulating pressure plate slide into the dovetail grooves of the insulating base to complete the tooling assembly.

[0042] S2. Fixing the glass insulator: Hold the upper end of the inner column 1 of the glass insulator to be tested with tweezers, and place the glass insulator into the through hole of the I-shaped metal conductive plate. The lower end of the inner column of the glass insulator falls into the blind hole of the insulating base. Push the insulating pressure plate inward from the side protruding from the insulating base. The insulating pressure plate slides forward along the dovetail groove. When the bottom surface of the insulating plate contacts the limit screw, the insulating pressure plate bends under the pushing force because the dovetail and the dovetail groove are clearance fit. It continues to slide forward past the limit screw. When the semi-circular groove on the bottom surface of the insulating pressure plate coincides with the semi-circular head of the limit screw, the bending deformation of the insulating pressure plate is restored. At this time, the inner side of the insulating pressure plate presses the outer sleeve 2 of the glass insulator. The outer sleeve of the glass insulator is in close contact with the I-shaped metal conductive plate, and the fixing of the glass insulator is completed.

[0043] S3. Insulation test of glass insulators: Connect the L end of the insulation resistance tester to the alligator clip, clamp the alligator clip to any one of the clamping screws at the top or bottom of the I-shaped metal conductive plate, connect the E end of the insulation resistance tester to the copper probe, start the insulation resistance tester, use the copper probe to contact the upper end of the inner column of the glass insulator one by one, and observe the reading of the insulation resistance tester. If the reading reaches the design requirement value of the glass insulator, it is qualified; if it does not reach the design requirement value, it is unqualified. Record the location of the unqualified insulator, and the insulation test of the glass insulator is completed.

[0044] S4: Glass Insulator Screening: Push the inner side of the insulating pressure plate outward. The insulating pressure plate will bend and deform under the pushing force, and continue to slide outward past the limit screw. Push the insulating pressure plate out of contact with the limit screw. Use tweezers to hold the upper end of the inner column of the glass insulator and remove the unqualified products according to the recorded position. Then remove the remaining qualified products to complete the screening of glass insulators.

[0045] Although embodiments and drawings of the present invention have been disclosed for illustrative purposes, those skilled in the art will understand that various substitutions, variations and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A method for using a rapid testing fixture for glass insulators, characterized in that: The rapid testing fixture for glass insulators includes an insulating base, an I-shaped metal conductive plate, and an insulating pressure plate. The insulating base is I-shaped with dovetail grooves on both sides. The insulating pressure plate has dovetails on both sides and is slidably installed in the dovetail grooves via the dovetails. The top and bottom of the I-shaped metal conductive plate and the insulating base are provided with clamping screw holes. The I-shaped metal conductive plate and the insulating base are fixed by clamping screws provided in the clamping screw holes. The insulating base has two rows of blind holes, and the I-shaped metal conductive plate has through holes corresponding to the two rows of blind holes. Glass insulators are installed through the blind holes and through holes. The steps of the method are as follows: S1. Tooling assembly: Install the limit screws in the corresponding limit screw holes of the insulating base; the I-shaped metal conductive plate corresponds to the I-shaped insulating base and is fastened by the clamping screws; the dovetails on both sides of the insulating pressure plate slide into the dovetail grooves of the insulating base to complete the tooling assembly. S2. Fixing the glass insulator: Hold the upper end of the inner column of the glass insulator to be tested with tweezers and place the glass insulator into the through hole of the I-shaped metal conductive plate. The lower end of the inner column of the glass insulator falls into the blind hole of the insulating base. Push the insulating pressure plate inward from the side protruding from the insulating base. The insulating pressure plate slides forward along the dovetail groove. When the bottom surface of the insulating plate contacts the limit screw, the insulating pressure plate bends under the pushing force due to the clearance fit between the dovetail and the dovetail groove. It continues to slide forward past the limit screw. When the semi-circular groove on the bottom surface of the insulating pressure plate coincides with the semi-circular head of the limit screw, the bending deformation of the insulating pressure plate is restored. At this time, the inner side of the insulating pressure plate presses the outer sleeve of the glass insulator tightly, and the outer sleeve of the glass insulator is in close contact with the I-shaped metal conductive plate, thus completing the fixing of the glass insulator. S3. Insulation test of glass insulators: Connect the L end of the insulation resistance tester to the alligator clip, clamp the alligator clip to any one of the clamping screws at the top or bottom of the I-shaped metal conductive plate, connect the E end of the insulation resistance tester to the copper probe, start the insulation resistance tester, use the copper probe to contact the upper end of the inner column of the glass insulator one by one, and observe the reading of the insulation resistance tester. If the reading reaches the design requirement value of the glass insulator, it is qualified; if it does not reach the design requirement value, it is unqualified. Record the location of the unqualified insulator, and the insulation test of the glass insulator is completed. S4: Glass Insulator Screening: Push the inner side of the insulating pressure plate outward. The insulating pressure plate will bend and deform under the pushing force, and continue to slide outward past the limit screw. Push the insulating pressure plate out of contact with the limit screw. Use tweezers to hold the upper end of the inner column of the glass insulator and remove the unqualified products according to the recorded position. Then remove the remaining qualified products to complete the screening of glass insulators.

2. The method of using the rapid testing fixture for glass insulators according to claim 1, characterized in that: Limit screw holes are provided in the dovetail grooves on both sides of the insulating base. Limit screws are installed in the internal threads of the limit screw holes. The limit screws have a semi-circular head structure. The bottom surface of the insulating pressure plate is provided with a semi-circular groove corresponding to the semi-circular head of the limit screw.

3. The method of using the rapid testing fixture for glass insulators according to claim 1, characterized in that: The diameter of the through holes on the I-shaped metal conductive plate is slightly larger than the diameter of the outer sleeve of the glass insulator, and all the through holes are arc-shaped holes with a missing corner.

4. The method of using the rapid testing fixture for glass insulators according to claim 1, characterized in that: The dovetail and dovetail groove of the insulating pressure plate are in clearance fit.

5. The method of using the rapid testing fixture for glass insulators according to claim 1, characterized in that: Both the insulating base and the insulating pressure plate are made of polytetrafluoroethylene.

Images