Microphone testing device

Abstract

The invention relates to the technical field of microphone testing, in particular to a microphone testing device which comprises an intelligent control panel, a falling test floor replacement mechanism is arranged below the intelligent control panel, and the falling test floor replacement mechanism comprises a hexagonal shell; through the falling test floor replacement mechanism, the falling test can be carried out on various different types of test floors, and the test results on different test floors are compared. Therefore, the performance of the microphone in different environments can be more comprehensively revealed, and the falling microphone can be automatically picked up to the interior of the microphone pickup shell again through the automatic pickup type microphone falling test machine, and the falling test can be carried out again. According to the technical scheme, the operation of the drop test process is simpler and more convenient, and the precision of the drop test is improved; the problems that in the testing process, a microphone needs to be manually fixed for multiple times, a floor for falling testing cannot be changed, and the limitation of the falling testing result is high are solved.

Description

Technical Field

[0001] The invention relates to the technical field of microphone testing, in particular to a microphone testing device. Background Art

[0002] A microphone is a device that converts sound signals into electrical signals. The working principle of a microphone is mainly based on the principle of electric motor or electromagnetic induction. It usually consists of a cavity with a fine iron mesh, a small magnet and a coil connected to the magnet. When sound waves propagate in the air, they compress and vibrate the on-board coil sparsely, thereby generating electric current. This current is the output signal of the microphone and can be transmitted to other audio devices for processing and amplification.

[0003] In the process of producing microphones, in order to ensure their quality, it is necessary to regularly take a sample from the newly produced finished microphones for testing their keys, insulation, drop, sound, etc. The key life machine, safety test machine, drop test machine and sound test function equipment used to test microphone keys, insulation, drop and sound can all be called a microphone testing device.

[0004] However, when using a drop tester to perform a drop test on a microphone, the microphone that has fallen from a high place needs to be re-fixed on the microphone clamp of the device many times until the drop test is completed. This drop test process is cumbersome and the type of floor used for the drop test cannot be changed. The results of the drop test are highly limited and cannot simulate real usage scenarios. Therefore, it does not meet existing needs. We propose a microphone testing device for this purpose. Summary of the invention

[0005] The object of the present invention is to provide a microphone testing device to solve the problems raised in the above background technology that when a drop test is performed on a microphone using a drop tester, the microphone that has fallen from a high place needs to be re-fixed on the microphone clamping head of the device many times until the drop test is completed. The drop test process is relatively cumbersome and the type of floor used for the drop test cannot be changed. The results of the drop test are highly limited and cannot simulate real usage scenarios.

[0006] To achieve the above-mentioned purpose, the present invention provides a microphone testing device, including an intelligent control panel, a drop test floor replacement mechanism is provided below the intelligent control panel, and the drop test floor replacement mechanism includes a hexagonal shell, a rotating mechanism, a metal test floor, a wooden test floor, a cement test floor, a tile test floor, a tempered glass test floor, a plastic test floor, six lifting mechanisms and six I-shaped sliding mounting tables, the six lifting mechanisms are respectively fixedly installed at the four end corners inside the hexagonal shell, the six I-shaped sliding mounting tables are respectively connected to the four lifting mechanisms, and the I-shaped sliding mounting tables can be moved inward or outward through the lifting mechanism;

[0007] The metal test floor, wooden test floor, cement test floor, tile test floor, tempered glass test floor and plastic test floor are respectively slidably mounted on the top ends of the six I-shaped sliding mounting tables, and can drive the hexagonal shell to rotate by a rotating mechanism;

[0008] An automatic pickup type microphone drop tester is provided above the smart control panel, and the automatic pickup type microphone drop tester includes a microphone pickup shell, a microphone, two sealing plates, two conical heads and an automatic pickup mechanism, the two sealing plates are respectively located on both sides below the microphone pickup shell, and the front end of the first sealing plate and the rear end of the second conical head from left to right are connected to the lower end surface of the microphone pickup shell through a rotating shaft, the two conical heads are respectively fixed to the opposite surfaces of the two sealing plates, and the microphone is located above the two conical heads, the automatic pickup mechanism can make the first sealing plate from left to right rotate clockwise at the rotating shaft connection while synchronously driving the second sealing plate to rotate counterclockwise at the rotating shaft connection, and the automatic pickup mechanism can also make the first sealing plate from left to right rotate counterclockwise with the rotating shaft connection as the center and synchronously drive the second sealing plate to rotate clockwise with the rotating shaft connection as the center in the process of synchronously driving the two sealing plates to move downward.

[0009] Preferably, the automatic pickup microphone drop test machine and the drop test floor replacement mechanism are both electrically connected to the intelligent control panel.

[0010] Preferably, the rotating mechanism comprises a stepper motor, the output shaft of the stepper motor is connected to a replacement shaft via a coupling, the replacement shaft penetrates the hexagonal shell horizontally from the middle position of the rear end face of the hexagonal shell, and the replacement shaft is fixedly connected to the hexagonal shell.

[0011] Preferably, the lifting mechanism includes a lifting motor, the output shaft of the lifting motor is connected to a lifting threaded rod via a coupling, the six lifting threaded rods are respectively located inside the six I-shaped sliding mounting platforms, and the lifting threaded rods are connected to the I-shaped sliding mounting platforms via a threaded structure.

[0012] Preferably, the automatic picking mechanism includes a square shell for testing, a lifting column is fixedly installed on both sides of the outer surface of the square shell for testing, an electric lifting head is installed on the upper side of the outer surface of the lifting column, a connecting bracket is fixedly installed on one side of the outer surface of the electric lifting head, the surface of the connecting bracket facing the microphone pickup shell is fixed to the microphone pickup shell, and the shape of the outer surface of the microphone pickup shell matches the shape of the inner wall of the square shell for testing.

[0013] Preferably, a push cylinder is fixedly installed on the upper side of the interior of the microphone pickup shell, the piston rod of the push cylinder is connected to a concave bracket, a push block is provided on both sides below the concave bracket, and the surface of the concave bracket facing the push block is an inclined surface A.

[0014] Preferably, a rectangular fixing block is fixedly provided on the lower end surface of the pushing block, and a fixing spring is connected to one side of the outer surface of the rectangular fixing block;

[0015] One side of the rectangular fixing block is provided with a strip groove located on the inner wall of the microphone pickup shell, a metal rod is fixed inside the strip groove, a metal sleeve is sleeved on the upper side of the outer surface of the metal rod, a rectangular fixing groove is provided on the surface of the metal sleeve facing the rectangular fixing block, the top end of the rectangular fixing block is inserted into the inside of the rectangular fixing groove, and the lower end surface of the top end of the rectangular fixing block is an inclined surface B.

[0016] Preferably, the surface of the metal sleeve facing the microphone is connected to a shaft connecting rod via a shaft, the other end of the shaft connecting rod is also connected to the sealing plate via a shaft, and a plurality of rollers are installed on the lower end surface of the sealing plate;

[0017] A metal tube is fixedly provided on the outer side of the upper end surface of the metal sleeve, and the upper end surface of the metal tube is in contact with the inner wall of the strip groove. The interior of the metal tube contains a push spring which is sleeved on the outer surface of the metal rod, and the upper and lower ends of the push spring are respectively connected to the inner wall of the strip groove and the upper end surface of the metal sleeve.

[0018] Preferably, one side of the lifting column is provided with a cylinder mounting platform fixed to the outer surface of the square test shell, a single-bar cylinder is fixedly installed on both sides of the upper end surface of the cylinder mounting platform, the piston rods of the two single-bar cylinders installed on the same cylinder mounting platform are connected to a push plate, the outer side of the push plate is provided with a strip-shaped through hole located on the outer surface of the square test shell, and the outer surface of the push plate is in contact with the inner wall of the strip-shaped through hole.

[0019] Preferably, one side of the push cylinder and the lifting motor is respectively provided with a metal cover plate located on the outer surface of the microphone pickup shell and the hexagonal shell, and the hexagonal shell and the microphone pickup shell are fixed to the metal cover plate by screws.

[0020] The present invention can perform drop tests on a variety of different types of test floors through a drop test floor replacement mechanism, and by comparing the test results on different test floors, it can more comprehensively reveal the performance of the microphone in different environments, so that the durability and impact resistance of the microphone can be more comprehensively evaluated, so that the drop test can be more in line with the real environment. The accuracy of the drop test is improved through the above technical scheme; the automatic pickup type microphone drop tester can automatically pick up the fallen microphone to the inside of the microphone pickup shell, and move it to a higher place again to perform the drop test again. The above technical scheme makes it possible for the drop test process to no longer require manual multiple fixation of the fallen microphone on the corresponding clamping head, thereby improving the degree of automation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 For the present invention Figure 1 A magnified view of the structure at center A;

[0023] Figure 3 It is a front view of the internal structure of the present invention as a whole;

[0024] Figure 4 For the present invention Figure 3 A magnified view of the structure at B in the middle;

[0025] Figure 5 For the present invention Figure 3 The schematic diagram of the structure when the two sealing plates are opened at B in the middle;

[0026] Figure 6 For the present invention Figure 3 Enlarged view of the structure at C in the middle. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] See also Figures 1 to 6, an embodiment of the present invention: a microphone test device, including an intelligent control panel 29, a drop test floor replacement mechanism 2 is provided below the intelligent control panel 29, the drop test floor replacement mechanism 2 includes a hexagonal shell 201, a rotating mechanism, a metal test floor 207, a wooden test floor 208, a cement test floor 209, a tile test floor 210, a tempered glass test floor 211, a plastic test floor 212, six lifting mechanisms and six I-shaped sliding mounting platforms 206, the six lifting mechanisms are respectively fixedly installed at the four end corners inside the hexagonal shell 201, the six I-shaped sliding mounting platforms 206 are respectively connected to the four lifting mechanisms, and the I-shaped sliding mounting platforms 206 can be moved inward or outward through the lifting mechanisms;

[0029] The metal test floor 207, wooden test floor 208, cement test floor 209, tile test floor 210, tempered glass test floor 211 and plastic test floor 212 are respectively slidably mounted on the top ends of the six I-shaped sliding mounting platforms 206, and can drive the hexagonal shell 201 to rotate through the rotating mechanism.

[0030] The automatic pickup type microphone drop tester 1 and the drop test floor replacement mechanism 2 are both connected to the intelligent control panel 29 via electrical signals; the automatic pickup type microphone drop tester 1 and the drop test floor replacement mechanism 2 can be controlled by the intelligent control panel 29 .

[0031] Please continue reading Figures 1 to 6 The rotating mechanism provided by the present invention includes a stepper motor 203, the output shaft of the stepper motor 203 is connected to a replacement shaft 202 through a coupling, the replacement shaft 202 penetrates the hexagonal shell 201 horizontally from the middle position of the rear end surface of the hexagonal shell 201, and the replacement shaft 202 is fixedly connected to the hexagonal shell 201; when it is necessary to use the wooden test floor 208 for a drop test, the stepper motor 203 is started, and the stepper motor 203 can drive the replacement shaft 202 connected thereto and the hexagonal shell 201 fixed to the outer surface of the replacement shaft 202 to rotate. When the hexagonal shell 201 rotates, the positions of the metal test floor 207, the wooden test floor 208, the cement test floor 209, the tile test floor 210, the tempered glass test floor 211 and the plastic test floor 212 located at the six end corners of the outer surface of the hexagonal shell 201 will change accordingly, and the wooden test floor 208 can be moved to the top.

[0032] Furthermore, the lifting mechanism provided by the present invention includes a lifting motor 204, the output shaft of the lifting motor 204 is connected to a lifting threaded rod 205 through a coupling, the six lifting threaded rods 205 are respectively located inside the six I-shaped sliding mounting platforms 206, and the lifting threaded rods 205 are connected to the I-shaped sliding mounting platforms 206 through a threaded structure; when the wooden test floor 208 moves to the top, the lifting motor 204 in the lifting mechanism corresponding to the wooden test floor 208 is started, and the lifting motor 204 can drive the lifting threaded rod 205 connected thereto to rotate, and through the transmission of the threaded structure, the I-shaped sliding mounting platform 206 will move up and down accordingly, and at this time, the I-shaped sliding mounting platform 206 is moved upward. When the mounting platform 206 moves upward, the wooden test floor 208 installed on the outer surface of the I-shaped sliding mounting platform 206 will move upward therewith, thereby entering the interior of the test square shell 28. After the wooden test floor 208 enters the interior of the test square shell 28, a drop test can be performed through the wooden test floor 208. Through the above technical solution, drop tests can be performed on a variety of different types of test floors. By comparing the test results on different test floors, the performance of the microphone 23 in different environments can be more comprehensively revealed. In this way, the durability and impact resistance of the microphone 23 can be more comprehensively evaluated, so that its drop test can be more in line with the real environment, thereby improving the accuracy of the drop test.

[0033] An automatic pickup type microphone drop tester 1 is provided above the intelligent control panel 29. The automatic pickup type microphone drop tester 1 comprises a microphone pickup shell 9, a microphone 23, two sealing plates 21, two conical heads 24 and an automatic pickup mechanism. The two sealing plates 21 are respectively located on both sides below the microphone pickup shell 9, and the front end of the first sealing plate 21 and the rear end of the second conical head 24 from left to right are connected to the lower end surface of the microphone pickup shell 9 through a rotating shaft. The two conical heads 24 are respectively fixed to the two sealing plates 2 1, and the microphone 23 is located above the two conical heads 24, the automatic picking mechanism can make the first sealing plate 21 from left to right rotate clockwise about the shaft connection and synchronously drive the second sealing plate 21 to rotate counterclockwise about the shaft connection, and the automatic picking mechanism can also synchronously drive the two sealing plates 21 to move downward so that the first sealing plate 21 from left to right rotates counterclockwise about the shaft connection as the center and synchronously drive the second sealing plate 21 to rotate clockwise about the shaft connection as the center.

[0034] A pushing cylinder 10 is fixedly installed on the upper side of the interior of the microphone pickup shell 9, and the piston rod of the pushing cylinder 10 is connected to a concave bracket 11. A pushing block 13 is provided on both sides below the concave bracket 11, and the surface of the concave bracket 11 facing the pushing block 13 is an inclined surface A12; when the wooden test floor 208 enters the interior of the test square shell 28, the pushing cylinder 10 is started, and the concave bracket 11 is pushed downward by the pushing cylinder 10. As the concave bracket 11 descends, the inclined surface A12 located on the outer surface of the concave bracket 11 will contact the pushing block 13 and push the pushing block 13 outward.

[0035] Furthermore, a rectangular fixing block 14 is fixedly provided on the lower end surface of the pushing block 13 , and a fixing spring 15 is connected to one side of the outer surface of the rectangular fixing block 14 .

[0036] One side of the rectangular fixing block 14 is provided with a strip groove 16 located on the inner wall of the microphone pickup shell 9, and a metal rod 17 is fixed inside the strip groove 16. A metal sleeve 18 is sleeved on the upper side of the outer surface of the metal rod 17. The surface of the metal sleeve 18 facing the rectangular fixing block 14 is provided with a rectangular fixing groove 26. The top end of the rectangular fixing block 14 is inserted into the inside of the rectangular fixing groove 26, and the lower end surface of the top end of the rectangular fixing block 14 is an inclined surface B27; the rectangular fixing block 14 is inserted into the inside of the rectangular fixing groove 26 on the outer surface of the metal sleeve 18, so that the metal sleeve 18 can be fixed at this position.

[0037] When the pushing block 13 moves outward, the rectangular fixing block 14 fixed thereto will move along with it. When the top end of the rectangular fixing block 14 completely leaves the inside of the rectangular fixing groove 26, the fixation of the metal sleeve 18 is released.

[0038] Furthermore, the surface of the metal sleeve 18 facing the microphone 23 is connected to a shaft connecting rod 22 via a shaft, and the other end of the shaft connecting rod 22 is also connected to the sealing plate 21 via a shaft, and a plurality of rollers 25 are installed on the lower end surface of the sealing plate 21.

[0039] A metal tube 19 is fixedly provided on the outer side of the upper end surface of the metal sleeve 18, and the upper end surface of the metal tube 19 is fitted with the inner wall of the strip groove 16. The interior of the metal tube 19 contains a push spring 20 which is sleeved with the outer surface of the metal rod 17, and the upper and lower ends of the push spring 20 are respectively connected to the inner wall of the strip groove 16 and the upper end surface of the metal sleeve 18; when the fixation of the metal sleeve 18 is released, the spring force of the push spring 20 can push the metal sleeve 18 downward, and when the metal sleeve 18 moves downward, it will drive the sealing plate 21 connected to it through the shaft connecting rod 22 to rotate around the shaft connection point. At this time, the first sealing plate 21 from left to right will rotate clockwise with the shaft connection as the center, and the second sealing plate 21 will rotate counterclockwise with the shaft connection as the center. As the two sealing plates 21 rotate, the microphone 23 between the two will fall down from between the two opened sealing plates 21 to the inside of the test square shell 28, and collide with the wooden test floor 208 located inside the test square shell 28, thereby performing a drop test on it. The test square shell 28 can prevent the falling microphone 23 from falling off the wooden test floor 208.

[0040] Please continue reading Figures 1 to 6 The automatic pickup mechanism provided by the present invention comprises a square shell 28 for testing, and a lifting column 6 is fixedly installed on both sides of the outer surface of the square shell 28 for testing, and an electric lifting head 7 is installed on the upper side of the outer surface of the lifting column 6. A connecting bracket 8 is fixedly installed on one side of the outer surface of the electric lifting head 7, and the surface of the connecting bracket 8 facing the microphone pickup shell 9 is fixed to the microphone pickup shell 9, and the shape of the outer surface of the microphone pickup shell 9 matches the shape of the inner wall of the square shell 28 for testing; when it is necessary to perform the drop test again, the microphone pickup shell 9 is driven downward by the electric lifting head 7, and as the microphone pickup shell 9 descends, the conical heads 24 located on the two rotating sealing plates 21 It will contact the upper end surface of the wooden test floor 208, and as the microphone pickup shell 9 descends, the first sealing plate 21 and the second sealing plate 21 from left to right will rotate counterclockwise and clockwise respectively with the shaft connection as the center due to their downward pressure. As the microphone pickup shell 9 descends, the two sealing plates 21 will gradually become parallel, and in the process of the sealing plates 21 becoming parallel, the conical heads 24 fixed on the outer surfaces thereof will contact the bottom end of the microphone 23 located on the upper end surface of the wooden test floor 208, and as the sealing plates 21 rotate, the microphone 23 will be scooped up by the two conical heads 24, thereby entering the interior of the microphone pickup shell 9 again.

[0041] When the sealing plate 21 becomes parallel, it will push the metal sleeve 18 connected to it through the rotating shaft connecting rod 22 upward on the outer surface of the metal rod 17. When the metal sleeve 18 moves upward, it will contact the inclined surface B27 located at the lower end surface of the rectangular fixed block 14 and push it outward. When the rectangular fixed block 14 moves outward, it will squeeze the fixed spring 15 connected to it. When the metal tube 19 fixed to the upper end surface of the metal sleeve 18 contacts the inner wall of the strip groove 16, the rectangular fixed groove 26 located on the outer surface of the metal sleeve 18 will move to the rectangular fixed block 14 pushed outward. Then, through the reaction force of the squeezed fixed spring 15, the rectangular fixed block 14 can be pushed inward and stuck into the inside of the rectangular fixed groove 26, so as to fix the metal sleeve 18 at this position.

[0042] When the metal sleeve 18 is fixed, the sealing plate 21 connected thereto by the rotating shaft connecting rod 22 will be fixed in a parallel state. When the microphone 23 is stored in the microphone pickup shell 9 and the sealing plate 21 is fixed in a parallel state, the electric lifting head 7 will automatically drive the microphone pickup shell 9 to move upward. When it moves to the corresponding height, the pushing cylinder 10 will automatically open the two sealing plates 21 again to perform a drop test. Through the above technical solution, the fallen microphone 23 can be automatically picked up into the microphone pickup shell 9 and moved to a higher place again to perform the drop test again, so that the drop test process no longer requires manual multiple fixation of the fallen microphone 23 on the corresponding clamping head, thereby improving the degree of automation of the equipment.

[0043] When the sealing plate 21 rotates due to the downward pressure generated by the microphone pickup shell 9, the roller 25 located on its lower end surface will contact the upper end surface of the wooden test floor 208. The roller 25 can reduce the friction between the sealing plate 21 and the wooden test floor 208, thereby protecting the sealing plate 21 and the wooden test floor 208 and preventing scratches on the two due to friction.

[0044] One side of the lifting column 6 is provided with a cylinder mounting platform fixed to the outer surface of the test square shell 28, and a single-bar cylinder 5 is fixedly installed on both sides of the upper end surface of the cylinder mounting platform. The piston rods of the two single-bar cylinders 5 installed on the same cylinder mounting platform are connected with a pushing plate 4. The outer side of the pushing plate 4 is provided with a strip through hole 3 located on the outer surface of the test square shell 28, and the outer surface of the pushing plate 4 is in contact with the inner wall of the strip through hole 3; when the microphone 23 falls into the interior of the wooden test floor 208, it is necessary to first push the pushing plate 4 inward by the single-bar cylinder 5. With the movement of the two pushing plates 4, the fallen microphone 23 can be pushed to the middle position of the upper end surface of the wooden test floor 208. By pushing the microphone 23 to this position, it can be prevented that when the microphone pickup shell 9 is moved downward, the sealing plate 21 directly contacts the microphone 23, thereby preventing it from being stored.

[0045] A metal cover plate is provided on one side of the push cylinder 10 and the lifting motor 204, which is located on the outer surface of the microphone pickup shell 9 and the hexagonal shell 201, and the hexagonal shell 201 and the microphone pickup shell 9 are fixed to the metal cover plate by screws; the metal cover plate can protect the push cylinder 10 and the lifting motor 204, and when the push cylinder 10 and the lifting motor 204 fail, the metal cover plate can be removed for maintenance.

[0046] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A microphone testing device, characterized in that: include: An intelligent control panel (29); a fall test floor replacement mechanism (2) is provided below the intelligent control panel (29); the fall test floor replacement mechanism (2) comprises a hexagonal shell (201), a rotating mechanism, a metal test floor (207), a wooden test floor (208), a cement test floor (209), a tile test floor (210), a tempered glass test floor (211), a plastic test floor (212), six lifting mechanisms and six I-shaped sliding mounting platforms (206); the six lifting mechanisms are respectively fixedly mounted at four end corners inside the hexagonal shell (201); the six I-shaped sliding mounting platforms (206) are respectively connected to the four lifting mechanisms, and the I-shaped sliding mounting platforms (206) can be moved inward or outward by the lifting mechanisms; The metal test floor (207), wooden test floor (208), cement test floor (209), tile test floor (210), tempered glass test floor (211) and plastic test floor (212) are respectively slidably mounted on the top ends of the six I-shaped sliding mounting platforms (206), and can drive the hexagonal shell (201) to rotate by means of a rotating mechanism; An automatic pickup type microphone drop tester (1) is provided above the intelligent control panel (29), and the automatic pickup type microphone drop tester (1) comprises a microphone pickup shell (9), a microphone (23), two sealing plates (21), two conical heads (24) and an automatic pickup mechanism, wherein the two sealing plates (21) are respectively located on both sides below the microphone pickup shell (9), and the front end of the first sealing plate (21) and the rear end of the second conical head (24) from left to right are both connected to the lower end surface of the microphone pickup shell (9) via a rotating shaft, and the two conical heads (24) are respectively The microphone (23) is fixed to the opposite surfaces of the two sealing plates (21), and is located above the two conical heads (24). The automatic picking mechanism can make the first sealing plate (21) from left to right rotate clockwise at the rotating shaft connection while synchronously driving the second sealing plate (21) to rotate counterclockwise at the rotating shaft connection. The automatic picking mechanism can also make the first sealing plate (21) from left to right rotate counterclockwise around the rotating shaft connection as the center and synchronously drive the second sealing plate (21) to rotate clockwise around the rotating shaft connection as the center during the process of synchronously driving the two sealing plates (21) to move downward.

2. The microphone testing device according to claim 1, characterized in that: The automatic pickup type microphone drop test machine (1) and the drop test floor replacement mechanism (2) are both electrically signal-connected to the intelligent control panel (29).

3. The microphone testing device according to claim 2, characterized in that: The rotating mechanism comprises a stepping motor (203), the output shaft of the stepping motor (203) being connected to a replacement rotating shaft (202) via a coupling, the replacement rotating shaft (202) penetrating the hexagonal outer shell (201) transversely from the middle position of the rear end surface of the hexagonal outer shell (201), and the replacement rotating shaft (202) is fixedly connected to the hexagonal outer shell (201).

4. The microphone testing device according to claim 1, characterized in that: The lifting mechanism comprises a lifting motor (204), the output shaft of the lifting motor (204) being connected to a lifting threaded rod (205) via a coupling, the six lifting threaded rods (205) being respectively located inside the six I-shaped sliding mounting platforms (206), and the lifting threaded rods (205) and the I-shaped sliding mounting platforms (206) being connected via a threaded structure.

5. The microphone testing device according to claim 4, characterized in that: The automatic pickup mechanism comprises a square shell (28) for testing, a lifting column (6) is fixedly installed on both sides of the outer surface of the square shell (28) for testing, an electric lifting head (7) is installed on the upper side of the outer surface of the lifting column (6), a connecting bracket (8) is fixedly installed on one side of the outer surface of the electric lifting head (7), the surface of the connecting bracket (8) facing the microphone pickup shell (9) is fixed to the microphone pickup shell (9), and the shape of the outer surface of the microphone pickup shell (9) matches the shape of the inner wall of the square shell (28) for testing.

6. The microphone testing device according to claim 5, characterized in that: A push cylinder (10) is fixedly installed on the upper side of the interior of the microphone pickup shell (9); a piston rod of the push cylinder (10) is connected to a concave bracket (11); a push block (13) is provided on both sides below the concave bracket (11); and a surface of the concave bracket (11) facing the push block (13) is an inclined surface A (12).

7. The microphone testing device according to claim 6, characterized in that: A rectangular fixing block (14) is fixedly provided on the lower end surface of the pushing block (13), and a fixing spring (15) is connected to one side of the outer surface of the rectangular fixing block (14); One side of the rectangular fixing block (14) is provided with a strip groove (16) located on the inner wall of the microphone pickup shell (9); a metal rod (17) is fixedly provided inside the strip groove (16); a metal sleeve (18) is sleeved on the upper side of the outer surface of the metal rod (17); a rectangular fixing groove (26) is provided on the surface of the metal sleeve (18) facing the rectangular fixing block (14); the top end of the rectangular fixing block (14) is inserted into the inside of the rectangular fixing groove (26), and the lower end surface of the top end of the rectangular fixing block (14) is an inclined surface B (27).

8. The microphone testing device according to claim 7, characterized in that: The surface of the metal sleeve (18) facing the microphone (23) is connected to a rotating shaft connecting rod (22) via a rotating shaft, and the other end of the rotating shaft connecting rod (22) is also connected to the sealing plate (21) via a rotating shaft, and a plurality of rollers (25) are installed on the lower end surface of the sealing plate (21); A metal tube (19) is fixedly provided on the outer side of the upper end surface of the metal sleeve (18), and the upper end surface of the metal tube (19) is in contact with the inner wall of the strip groove (16). The metal tube (19) contains a push spring (20) which is sleeved on the outer surface of the metal rod (17), and the upper and lower ends of the push spring (20) are respectively connected to the inner wall of the strip groove (16) and the upper end surface of the metal sleeve (18).

9. The microphone testing device according to claim 5, characterized in that: A cylinder mounting platform fixed to the outer surface of a square test housing (28) is provided on one side of the lifting column (6), a single-bar cylinder (5) is fixedly mounted on both sides of the upper end surface of the cylinder mounting platform, and the piston rods of the two single-bar cylinders (5) mounted on the same cylinder mounting platform are connected to a push plate (4), and a strip-shaped through hole (3) located on the outer surface of the square test housing (28) is provided on the outer side of the push plate (4), and the outer surface of the push plate (4) is in contact with the inner wall of the strip-shaped through hole (3).

10. The microphone testing device according to claim 8, characterized in that: A metal cover plate is provided on one side of the push cylinder (10) and the lifting motor (204) and is located on the outer surface of the microphone pickup shell (9) and the hexagonal shell (201), respectively, and the hexagonal shell (201) and the microphone pickup shell (9) are fixed to the metal cover plate by screws.

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