CN112525741A

CN112525741A - Elastic tension testing device for spring telephone line production

Info

Publication number: CN112525741A
Application number: CN202011376348.2A
Authority: CN
Inventors: 刘娇
Original assignee: Nanjing Jiaoyulin Trading Co ltd
Current assignee: Nanjing Jiaoyulin Trading Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-03-19

Abstract

The invention relates to the technical field of telephone line production and discloses an elastic tension testing device for spring telephone line production. This elasticity tensile test device is used in spring telephone line production, the electro-magnet attracts the magnet piece to move down along the elongated slot that slides, with the spring telephone line tensile down, when the movable block removes to the bottom of the elongated slot that slides, the electro-magnet cuts off the power supply, after the spring telephone line resumes deformation, the movable block and piezoelectric crystal contact, piezoelectric crystal pressurized, the electro-magnet is electrified once more and has magnetism, pass the magnet and pass the piece and attract down, positive plate and negative plate switch-on this moment, the electro-magnet lasts the circular telegram, thereby attract the magnet piece downwards, pull down the spring telephone line once more, realize the tensile test process of repetition, degree of automation is high, the test effect is good.

Description

Elastic tension testing device for spring telephone line production

Technical Field

The invention relates to the technical field of telephone line production, in particular to an elastic tension testing device for spring telephone line production.

Background

The spring cable, also known as a spiral cable, is used everywhere, whether in communication or medical technology, electric locomotive industry, mechanical engineering, or in lighting industry, and has applications, especially in telephones, and the spring telephone wire has wide applications, very good elasticity, excellent mechanical and chemical properties, and is particularly cold-resistant, oil-resistant, weather-resistant, abrasion-resistant, and tear-resistant, especially its own stretching effect, which can greatly increase the flexibility of the telephone microphone.

However, after a telephone is used for a long time, people can stretch a spring telephone line for many times through a microphone, the spring telephone line can not restore the initial deformation capacity finally, so that the spring telephone line is lengthened, inconvenient to use and needs to be replaced, and before the spring telephone line is produced and leaves a factory, the tensile resistance of the spring telephone line needs to be tested so as to measure and calculate the replacement period of the spring telephone line.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the elastic tension testing device for spring telephone line production, which has the advantages of high automation degree and good testing stability, and solves the problem that the tensile resistance of the spring telephone line needs to be tested before the spring telephone line is produced and delivered from a factory so as to measure and calculate the replacement period of the spring telephone line.

(II) technical scheme

In order to realize the purposes of high automation degree and good test stability, the invention provides the following technical scheme: an elastic tension testing device for spring telephone line production comprises an upper shell and a lower shell, wherein a clamping assembly is fixedly connected inside the upper shell, a piezoelectric crystal is fixedly connected to the inner wall of the upper shell, an inserting plate is fixedly connected to the bottom of the upper shell, an inserting mounting groove corresponding to the inserting plate is formed in the top of the lower shell, a sliding long groove is formed in the lower shell, a moving block is movably connected inside the sliding long groove, a fixed clamping groove is formed in the moving block, a fastening clamping ring is movably connected to the inner wall of the fixed clamping groove, a first dielectric plate is fixedly connected inside the moving block, a magnet sheet is fixedly connected inside the moving block, a positive plate is fixedly connected inside the lower shell, a negative plate is fixedly connected inside the lower shell, an electromagnet is fixedly connected inside the lower shell, an accommodating groove is formed in the lower shell, the magnet pushing block is fixedly connected with a second dielectric plate inside.

Preferably, the upper shell is internally provided with sliding long grooves, and the two sliding long grooves are connected to form a whole to form a vacuum test cavity, so that the influence of impurities and gas in the air on the test result is eliminated.

Preferably, the lower shell is internally provided with an air hole, the air hole is connected with a vacuum suction pump, and after the upper shell and the lower shell are assembled, the vacuum test cavity is vacuumized by the vacuum suction pump.

Preferably, the top of the moving block is fixedly connected with an impact block, the top of the impact block is movably contacted with the bottom of the piezoelectric crystal, and the impact block is driven to be contacted with the piezoelectric crystal when the moving block moves downwards.

Preferably, the negative plate is electrically connected to the electromagnet, the corresponding surfaces of the electromagnet and the magnet piece have the same magnetism, the corresponding surfaces of the electromagnet and the magnet pushing block have opposite magnetism, and the electromagnet is electrified to drive the magnet piece to move downwards and push the magnet pushing block to move upwards.

Preferably, the fixed slot inner wall fixedly connected with screw thread is protruding, and the fastening snap ring outside is seted up corresponding to the bellied screw thread recess of screw thread, and spring telephone line top fixed connection is in centre gripping subassembly bottom, and spring telephone line bottom is fixed cup joints inside the fastening snap ring, fixes the spring telephone line in the vacuum test intracavity, convenient operation.

Preferably, the first dielectric plate and the second dielectric plate have the same cross-sectional area, the positive electrode plate and the negative electrode plate have the same cross-sectional area, and the first dielectric plate has a cross-sectional area larger than that of the positive electrode plate, so that the positive electrode plate and the negative electrode plate are controlled to be connected by moving the positions of the first dielectric plate and the second dielectric plate.

(III) advantageous effects

Compared with the prior art, the invention provides an elastic tension testing device for spring telephone line production, which has the following beneficial effects:

1. according to the elastic tension testing device for spring telephone line production, the top of the spring telephone line is fixedly connected to the bottom of the clamping assembly, the bottom of the spring telephone line is fixedly sleeved inside the fastening snap ring, the moving block is placed back inside the sliding long groove, the upper shell and the lower shell are connected into a whole through the fixed insertion of the insertion plate and the insertion mounting groove, the vacuum testing cavity is vacuumized by using the vacuum suction pump, and the influence of impurities and gas in the air on the testing result is eliminated.

2. This elasticity tensile test device is used in spring telephone line production, the electro-magnet attracts the magnet piece to move down along the elongated slot that slides, with the spring telephone line tensile down, when the movable block removes to the bottom of the elongated slot that slides, the electro-magnet cuts off the power supply, after the spring telephone line resumes deformation, the movable block and piezoelectric crystal contact, piezoelectric crystal pressurized, the electro-magnet is electrified once more and has magnetism, pass the magnet and pass the piece and attract down, positive plate and negative plate switch-on this moment, the electro-magnet lasts the circular telegram, thereby attract the magnet piece downwards, pull down the spring telephone line once more, realize the tensile test process of repetition, degree of automation is high, the test effect is good.

Drawings

FIG. 1 is a schematic side view of the moving block of the present invention moving downward;

FIG. 2 is a schematic side view of the moving block of the present invention moving upward;

FIG. 3 is a side view of the upper housing of the present invention;

fig. 4 is a side view of the lower shell of the present invention.

In the figure: 1. an upper housing; 2. a clamping assembly; 3. a piezoelectric crystal; 4. a plugboard; 5. inserting and mounting grooves; 6. a sliding long groove; 7. a moving block; 8. fixing the clamping groove; 9. fastening the snap ring; 10. a first dielectric plate; 11. a magnet piece; 12. a positive plate; 13. a negative plate; 14. an electromagnet; 15. accommodating grooves; 16. a return spring; 17. a magnet pushing block; 18. a second dielectric plate; 19. a lower housing.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, an elastic tension testing device for spring telephone line production comprises an upper shell 1 and a lower shell 19, wherein a clamping assembly 2 is fixedly connected inside the upper shell 1, a piezoelectric crystal 3 is fixedly connected to the inner wall of the upper shell 1, a plugboard 4 is fixedly connected to the bottom of the upper shell 1, a sliding long groove 6 is formed inside the upper shell 1, the two sliding long grooves 6 are connected into a whole to form a vacuum testing cavity, so that the influence of impurities and gases in the air on a testing result is eliminated, an air hole is formed inside the lower shell 19, a vacuum suction pump is connected to the air hole, and the vacuum testing cavity is vacuumized by the vacuum suction pump after the upper shell 1 and the lower shell 19 are assembled;

the top of the lower shell 19 is provided with an inserting mounting groove 5 corresponding to the inserting plate 4, the interior of the lower shell 19 is provided with a sliding long groove 6, the interior of the sliding long groove 6 is movably connected with a moving block 7, the top of the moving block 7 is fixedly connected with an impact block, the top of the impact block is movably contacted with the bottom of the piezoelectric crystal 3, the moving block 7 drives the impact block to be contacted with the piezoelectric crystal 3 when moving downwards, the interior of the moving block 7 is provided with a fixed clamping groove 8, the inner wall of the fixed clamping groove 8 is movably connected with a fastening clamping ring 9, the inner wall of the fixed clamping groove 8 is fixedly connected with a threaded bulge, the outer side of the fastening clamping ring 9 is provided with a threaded groove corresponding to the threaded bulge, the top of the spring telephone wire is fixedly connected with the bottom of the clamping component 2, the bottom, a magnet piece 11 is fixedly connected inside the moving block 7, a positive plate 12 is fixedly connected inside the lower casing 19, a negative plate 13 is fixedly connected inside the lower casing 19, an electromagnet 14 is fixedly connected inside the lower casing 19, an accommodating groove 15 is formed inside the lower casing 19, a return spring 16 is fixedly connected to the bottom wall inside the accommodating groove 15, a magnet pushing block 17 is fixedly connected to the top of the return spring 16, the negative plate 13 is electrically connected to the electromagnet 14, the magnetism of the corresponding surface of the electromagnet 14 and the magnet piece 11 is the same, the magnetism of the corresponding surface of the electromagnet 14 and the magnet pushing block 17 is opposite, the electromagnet 14 is electrified to drive the magnet piece 11 to move downwards and push the magnet pushing block 17 to move upwards, a second dielectric plate 18 is fixedly connected inside the magnet pushing block 17, the sectional areas of the first dielectric plate 10 and the second dielectric plate 18 are the same, and, the cross-sectional area of first dielectric plate 10 is larger than the cross-sectional area of positive electrode plate 12, and the connection between positive electrode plate 12 and negative electrode plate 13 is controlled by the positional displacement of first dielectric plate 10 and second dielectric plate 18.

The working principle is as follows: fixedly connecting the top of the spring telephone wire to the bottom of the clamping component 2, fixedly connecting the bottom of the spring telephone wire to the inside of the fastening snap ring 9, placing the moving block 7 back to the inside of the sliding long groove 6, fixedly splicing the splicing plate 4 with the splicing installation groove 5, connecting the upper shell 1 and the lower shell 19 into a whole, fixing the spring telephone wire in a vacuum test cavity, and vacuumizing the vacuum test cavity by using a vacuum suction pump;

then the electromagnet 14 is controlled to be electrified through a master control switch, and the electromagnet 14 attracts the magnet piece 11 to move downwards along the sliding long groove 6, simultaneously, the moving block 7 is driven to move downwards to stretch the spring telephone wire downwards, when the moving block 7 moves to the lowest part of the sliding long groove 6, the first dielectric plate 10 is located between the positive electrode plate 12 and the negative electrode plate 13, when the electromagnet 14 is powered off, the moving block 7 moves along the sliding long groove 6 under the elastic action of the spring telephone wire, when the spring telephone wire is restored to be deformed, the moving block 7 is contacted with the piezoelectric crystal 3, the piezoelectric crystal 3 is pressed, the electromagnet 14 is electrified again to have magnetism, the magnet pushing block 17 is attracted downwards, the positive plate 12 and the negative plate 13 are connected at the moment, the electromagnet 14 is continuously electrified, thereby attracting the magnet piece 11 downwards and pulling down the spring telephone wire again to realize the test process of repeated stretching.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a spring is elasticity tensile test device for telephone line production, includes casing (1) and lower casing (19), its characterized in that: the clamping component (2) is fixedly connected inside the upper shell (1), the piezoelectric crystal (3) is fixedly connected on the inner wall of the upper shell (1), the plugboard (4) is fixedly connected at the bottom of the upper shell (1), the plugging mounting groove (5) corresponding to the plugboard (4) is formed in the top of the lower shell (19), the sliding elongated slot (6) is formed in the lower shell (19), the moving block (7) is movably connected inside the sliding elongated slot (6), the fixed clamping slot (8) is formed in the moving block (7), the fastening clamping ring (9) is movably connected on the inner wall of the fixed clamping slot (8), the first dielectric plate (10) is fixedly connected inside the moving block (7), the magnet piece (11) is fixedly connected inside the moving block (7), the positive plate (12) is fixedly connected inside the lower shell (19), and the negative plate (13), the electromagnet (14) is fixedly connected to the inside of the lower shell (19), the accommodating groove (15) is formed in the lower shell (19), the bottom wall of the accommodating groove (15) is fixedly connected with a reset spring (16), the top of the reset spring (16) is fixedly connected with a magnet pushing block (17), and the second dielectric plate (18) is fixedly connected to the inside of the magnet pushing block (17).

2. The elastic tension testing device for spring telephone line production according to claim 1, wherein: the inner part of the upper shell (1) is provided with a sliding long groove (6), and the two sliding long grooves (6) are connected into a whole to form a vacuum test cavity.

3. The elastic tension testing device for spring telephone line production according to claim 1, wherein: an air hole is formed in the lower shell (19), and a vacuum suction pump is connected to the air hole.

4. The elastic tension testing device for spring telephone line production according to claim 1, wherein: the top of the moving block (7) is fixedly connected with an impact block, and the top of the impact block is in movable contact with the bottom of the piezoelectric crystal (3).

5. The elastic tension testing device for spring telephone line production according to claim 1, wherein: the negative plate (13) is electrically connected to the electromagnet (14), the corresponding surfaces of the electromagnet (14) and the magnet piece (11) have the same magnetism, and the corresponding surfaces of the electromagnet (14) and the magnet pushing block (17) have the opposite magnetism.

6. The elastic tension testing device for spring telephone line production according to claim 1, wherein: the inner wall of the fixed clamping groove (8) is fixedly connected with a thread protrusion, a thread groove corresponding to the thread protrusion is formed in the outer side of the fastening clamping ring (9), the top of the spring telephone wire is fixedly connected to the bottom of the clamping assembly (2), and the bottom of the spring telephone wire is fixedly sleeved inside the fastening clamping ring (9).

7. The elastic tension testing device for spring telephone line production according to claim 1, wherein: the cross-sectional areas of the first dielectric plate (10) and the second dielectric plate (18) are the same, the cross-sectional areas of the positive plate (12) and the negative plate (13) are the same, and the cross-sectional area of the first dielectric plate (10) is larger than that of the positive plate (12).