Voice coil polarity testing device

Abstract

The utility model relates to the technical field of voice coil polarity testing devices, and discloses a voice coil polarity testing device which comprises a base plate and two side plates installed on the two sides of the base plate, one side of one side plate is fixedly connected with a servo motor, an output shaft of the servo motor is fixedly connected with a bidirectional threaded rod, and the output shaft of the bidirectional threaded rod is fixedly connected with an output shaft of the base plate. The two ends of the bidirectional threaded rod are both in threaded sleeve connection with threaded sleeve blocks, the tops of the two threaded sleeve blocks are both in sliding clamping connection with two sliding columns, stand columns are fixedly connected to the four corners of the top of the base plate, and the tops of the four stand columns are jointly and fixedly connected with a testing platform. The four sliding columns slide to clamp voice coils with different sizes by using the four ferrules, after clamping, a sensor is fixed on the connecting plate, and the height of the voice coils is adjusted by using the stretching of the two servo electronic telescopic rods, so that the voice coils with different test strengths can adapt to the sensor, and the practicability of the device is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of voice coil polarity testing devices, in particular to a voice coil polarity testing device. Background Art

[0002] Voice coil polarity test refers to testing the polarity direction of the speaker voice coil in audio equipment. Whether the voice coil polarity is correct or not directly affects the sound performance of the speaker. Generally, during the test, the voice coil needs to be fixed in a specific position, and then some instruments specially designed for testing the polarity of audio equipment are used for testing, which may include sensors for detecting the polarity direction.

[0003] The existing polarity testing device needs to adjust the position of the voice coil after installing the sensor to adapt to the signal reception of the sensor, and ensure that the distance between the voice coil and the sensor can be adjusted, so as to facilitate the sensor to receive the voice coil signal and avoid the problem of not receiving the signal due to the large sensor distance when the voice coil signal is low.

[0004] Therefore, it is necessary to design a voice coil polarity testing device to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a voice coil polarity testing device, which is used to solve the technical problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a voice coil polarity testing device, comprising a chassis and two side panels installed on both sides of the chassis, one side of the side panel is fixedly connected to a servo motor, the output shaft of the servo motor is fixedly connected to a bidirectional threaded rod, both ends of the bidirectional threaded rod are threadedly sleeved with threaded sleeves, the tops of the two threaded sleeves are slidably clamped with two sliding columns, the top four corners of the chassis are fixedly connected with columns, the tops of the four columns are commonly fixedly connected with a testing platform, the outer surface of the testing platform is provided with an X-shaped opening, the four sliding columns are respectively slidably arranged at the four corners of the X-shaped opening, and the outer surfaces of the four sliding columns are slidably sleeved with rings, and the two rings on the same side are commonly connected to a lifting mechanism, and the lifting mechanism is used to drive the two rings on the same side to lift and lower.

[0007] Preferably, the lifting mechanism includes a socket plate, one side of the two rings are fixedly connected with a second clamping block, the socket plate is provided with two symmetrical first clamping grooves on one side of the two rings, the two second clamping blocks are slidably clamped in the two first clamping grooves, a U-shaped block is fixedly connected to the other side of the socket plate, a slide groove is provided on the top of the test platform, an insert block is slidably arranged inside the slide groove, another U-shaped block is fixedly connected to the top of the insert block, a rotating block is rotatably connected between the two U-shaped blocks, a connecting block is fixedly connected to the bottom of the socket plate, and a servo electronic telescopic rod is fixedly connected between the insert block and the connecting block.

[0008] Preferably, the bottom ends of the four sliding columns are fixed with two symmetrical first clamping blocks, the inner cavities of the two threaded sleeves are provided with two symmetrical second clamping grooves on both sides, and the eight first clamping blocks are respectively slidably arranged inside the eight second clamping grooves.

[0009] Preferably, the tops of the four sliding columns are slidably connected to a connecting plate, the bottom of the connecting plate is provided with an X-shaped groove matching the X-shaped opening, and the tops of the four sliding columns are slidably inserted into the interior of the X-shaped groove, and the outer surface of the connecting plate is provided with a circular opening.

[0010] Preferably, the four ferrules are slidably sleeved on the outer surfaces of the four sliding columns respectively, and the bottoms of the four ferrules are meshed with the top of the test platform.

[0011] Preferably, the connecting block and the inserting block are both square blocks, and two sides of the connecting block and the inserting block are respectively fitted with two sides of the inner cavity of the slide groove.

[0012] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0013] The utility model adopts the structural design of the ferrule and the sliding column, and utilizes the four ferrules to clamp the voice coils of different sizes by sliding the four sliding columns. After clamping, the sensor is fixed on the connecting plate, and the height of the voice coil is adjusted by the extension and retraction of two servo electronic telescopic rods, so that the voice coils of different test strengths can be adapted to the sensor, which greatly increases the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is an exploded schematic diagram of the first clamping block and the threaded sleeve block structure of the utility model;

[0016] Figure 3 It is an exploded schematic diagram of the second clamping block and the socket plate structure of the utility model;

[0017] In the figure: 1. chassis; 2. side panel; 3. servo motor; 4. test platform; 5. socket plate; 6. U-shaped block; 7. rotating block; 8. sliding column; 9. connecting plate; 10. ring; 11. connecting block; 12. threaded sleeve block; 13. bidirectional threaded rod; 14. first slot; 15. first block; 16. second slot; 17. second block; 18. plug-in block; 19. servo electronic telescopic rod; 20. column. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] Obviously, many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0020] See also Figure 1-3 The utility model provides a voice coil polarity test device, comprising a chassis 1 and two side panels 2 installed on both sides of the chassis 1, one side of the side panel 2 is fixedly connected to a servo motor 3, the output shaft of the servo motor 3 is fixedly connected to a bidirectional threaded rod 13, both ends of the bidirectional threaded rod 13 are threadedly sleeved with threaded sleeve blocks 12, the tops of the two threaded sleeve blocks 12 are slidably clamped with two sliding columns 8, the four corners of the top of the chassis 1 are fixedly connected with columns 20, the tops of the four columns 20 are commonly fixedly connected with a test platform 4, the outer surface of the test platform 4 is provided with an X-shaped opening, the four sliding columns 8 are respectively slidably arranged at the four corners of the X-shaped opening, and the outer surfaces of the four sliding columns 8 are slidably sleeved with rings 10, and the two rings 10 on the same side are commonly connected with a lifting mechanism, and the lifting mechanism is used for Drive the two ferrules 10 on the same side to rise and fall. When the test voice coil is placed on the top of the test platform 4, by turning on the servo motor 3, the two threaded bushings 12 move toward or away from each other to make the four sliding posts 8 slide at the X-shaped opening of the test platform 4, so that the four ferrules 10 are used to clamp the voice coil by sliding the four sliding posts 8. When the four sliding posts 8 slide, the two lifting mechanisms will slide synchronously with the sliding of the two sliding posts 8 on the same side, and after clamping the voice coil, the four ferrules 10 are used to rise and fall through two symmetrical lifting mechanisms to adjust the height of the voice coil, so as to better adapt to the detection work of the sensor. Through the sliding of the four sliding posts 8, the device can clamp voice coils of different sizes, and through the height adjustment of the four ferrules 10, the sensor can adapt to the voice coil polarity test work with different signal strengths.

[0021] It should be noted that the lifting mechanism mentioned in the above description includes a socket plate 5. When the four sliding columns 8 slide, the two socket plates 5 on the two lifting mechanisms will slide inside the slide groove through the connecting block 11, following the two sliding columns 8 on the same side. After sliding to the four rings 10 to clamp the voice coil, when the servo electronic telescopic rod 19 inside the slide groove on the same side of the two socket plates 5 is contracted, the corresponding plug block 18 will slide inside the corresponding slide groove toward the connecting block 11 in the same slide groove, so that the rotating block 7 on the same side rotates inside the two U-shaped blocks 6, and one end of the U-shaped block 6 is used to push the corresponding socket plate 5, and the two second clamping blocks 17 are used to slide in the two first clamping grooves 14 to raise the socket plate 5 and adjust the height of the clamped voice coil.

[0022] Furthermore, when the four sliding columns 8 slide, in order to better enable the bottom ends of the four sliding columns 8 to slide stably inside the two threaded sleeves 12 respectively, two symmetrical first clamping blocks 15 are fixed to the bottom ends of the four sliding columns 8, and two symmetrical second clamping grooves 16 are opened on both sides of the inner cavity of the two threaded sleeves 12, and the eight first clamping blocks 15 are respectively slidably arranged inside the eight second clamping grooves 16.

[0023] Furthermore, in order to facilitate the fixed placement of the sensor, the test sensor is fixed by using a connecting plate 9, and the tops of the four sliding columns 8 are slidably connected to a connecting plate 9, the bottom of the connecting plate 9 is provided with an X-shaped groove matching the X-shaped opening, and the tops of the four sliding columns 8 are slidably inserted into the interior of the X-shaped groove, and the outer surface of the connecting plate 9 is provided with a circular opening, so that when the four sliding columns 8 slide, the setting of the connecting plate 9 does not affect their sliding.

[0024] In order to facilitate the four ferrules 10 to drive the clamped voice coil to rise and fall on the four sliding columns 8, the four ferrules 10 are respectively slidably sleeved on the outer surfaces of the four sliding columns 8, and the bottoms of the four ferrules 10 are engaged with the top of the test platform 4.

[0025] It should be noted that in order to enable the two connecting blocks 11 and the two inserting blocks 18 to slide stably inside the two slide grooves respectively, the connecting blocks 11 and the inserting blocks 18 are both square blocks, and the two sides of the connecting blocks 11 and the inserting blocks 18 are respectively fitted with the two sides of the inner cavity of the slide groove.

[0026] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0027] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0028] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A voice coil polarity test device, comprising a chassis (1) and two side panels (2) mounted on both sides of the chassis (1), characterized in that: A servo motor (3) is fixedly connected to one side of the side plate (2), the output shaft of the servo motor (3) is fixedly connected to a bidirectional threaded rod (13), both ends of the bidirectional threaded rod (13) are threadedly sleeved with threaded sleeve blocks (12), the tops of the two threaded sleeve blocks (12) are slidably clamped with two sliding columns (8), the four corners of the top of the chassis (1) are fixedly connected with columns (20), the tops of the four columns (20) are commonly fixedly connected with a test platform (4), the outer surface of the test platform (4) is provided with an X-shaped opening, the four sliding columns (8) are respectively slidably arranged at the four corners of the X-shaped opening, and the outer surfaces of the four sliding columns (8) are slidably sleeved with rings (10), and the two rings (10) on the same side are commonly connected with a lifting mechanism, and the lifting mechanism is used to drive the two rings (10) on the same side to rise and fall.

2. A voice coil polarity test device according to claim 1, characterized in that: The lifting mechanism comprises a sleeve plate (5), one side of the two ferrules (10) is fixedly connected with a second clamping block (17), the sleeve plate (5) is provided with two symmetrical first clamping grooves (14) on one side of the two ferrules (10), the two second clamping blocks (17) are slidably clamped in the inside of the two first clamping grooves (14), a U-shaped block (6) is fixedly connected to the other side of the sleeve plate (5), a sliding groove is provided on the top of the test platform (4), an inserting block (18) is slidably arranged inside the sliding groove, another U-shaped block (6) is fixedly connected to the top of the inserting block (18), a rotating block (7) is rotatably connected between the two U-shaped blocks (6), a connecting block (11) is fixedly connected to the bottom of the sleeve plate (5), and a servo electronic telescopic rod (19) is fixedly connected between the inserting block (18) and the connecting block (11).

3. A voice coil polarity test device according to claim 1, characterized in that: The bottom ends of the four sliding columns (8) are fixedly connected with two symmetrical first clamping blocks (15), and the inner cavities of the two threaded sleeves (12) are provided with two symmetrical second clamping grooves (16) on both sides, and the eight first clamping blocks (15) are respectively slidably arranged inside the eight second clamping grooves (16).

4. A voice coil polarity test device according to claim 1, characterized in that: The tops of the four sliding columns (8) are slidably connected to a connecting plate (9), the bottom of the connecting plate (9) is provided with an X-shaped groove matching the X-shaped opening, and the tops of the four sliding columns (8) are slidably inserted into the interior of the X-shaped groove, and the outer surface of the connecting plate (9) is provided with a circular opening.

5. A voice coil polarity test device according to claim 1, characterized in that: The four ferrules (10) are respectively slidably sleeved on the outer surfaces of the four sliding columns (8), and the bottoms of the four ferrules (10) are meshed with the top of the test platform (4).

6. A voice coil polarity test device according to claim 2, characterized in that: The connecting block (11) and the inserting block (18) are both square blocks, and the two sides of the connecting block (11) and the inserting block (18) are respectively fitted with the two sides of the inner cavity of the slide groove.

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