Clamping mechanism of micro loudspeaker cone

Abstract

The utility model relates to the technical field of miniature loudspeakers, and discloses a clamping mechanism of a miniature loudspeaker cone, which comprises a fixed frame, the left end and the right end of the inner side of the fixed frame are fixedly connected to the fixed ends of telescopic cylinders, and the telescopic ends of the telescopic cylinders are fixedly connected to the middle of the outer side of a movable plate. And the front end and the rear end of the inner side of the moving plate are fixedly connected to one ends of connecting rods, the other ends of the connecting rods are fixedly connected to the front side and the rear side of mounting frames correspondingly, and clamping blocks are rotationally connected to the upper ends of the mounting frames correspondingly. According to the utility model, firstly, the clamping blocks rotate on the circular fixing blocks to adjust the positions of the clamping blocks, then the clamping blocks are fixed and locked by the threaded bolts, secondly, the telescopic ends of the telescopic cylinders stretch inwards to push the moving plates, the connecting rods and the mounting frames to move inwards, and the clamping blocks clamp and fix the left and right ends of the outer side of the sound cone, so that the operation is convenient and fast; the sound cone clamping device is suitable for clamping sound cones of different sizes and different shapes, and the clamping stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of micro loudspeakers, in particular to a clamping mechanism for a diaphragm of a micro loudspeaker. Background Art

[0002] The loudspeaker, commonly known as the "speaker", is a very commonly used electroacoustic transducer, which is a transducer that converts electrical signals into sound signals. The performance of the loudspeaker has a great influence on the sound quality. The loudspeaker is the weakest component in the audio equipment, but for the sound effect, it is the most important component. There are many types of loudspeakers and the prices vary greatly. The audio electrical energy makes its paper cone or diaphragm vibrate through electromagnetic, piezoelectric or electrostatic effects and resonate (sympathize) with the surrounding air to emit sound. The micro loudspeaker refers to a loudspeaker with a smaller size, usually used in smart home devices such as smart speakers and smart doorbells. It has the characteristics of small size, light weight, low power consumption and high sound quality, and can provide clear and high-quality sound output for smart home devices.

[0003] When manufacturing a micro loudspeaker, the diaphragm needs to be processed. Since the iron of the diaphragm used on the micro loudspeaker is small in size, it needs to be clamped and fixed during processing. Most of the existing clamping and fixing devices are carried out by means of a bench vice. Since the iron of the diaphragm is small in size, the required bench vice size is also small. During the use of the small-sized bench vice, the clamping force and stability are low, and after long-term use, it is easy to cause the thread to slip and be damaged, and the adjustable range is small. It is necessary to provide a grinding and clamping device for a U-iron used in a micro loudspeaker to solve the above-mentioned problems. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the defects existing in the prior art, and to propose a clamping mechanism for a diaphragm of a micro loudspeaker.

[0005] To achieve the above purpose, the utility model provides the following technical solution:

[0006] A clamping mechanism for a diaphragm of a micro loudspeaker, including a fixed frame. The left and right ends of the inner side of the fixed frame are fixedly connected to the fixed ends of telescopic cylinders. The telescopic ends of the telescopic cylinders are fixedly connected to the middle of the outer side of a moving plate. The front and rear ends of the inner side of the moving plate are fixedly connected to one ends of connecting rods. The other ends of the connecting rods are respectively fixedly connected to the front and rear sides of a mounting frame. Clamping blocks are rotatably connected to the upper ends of the mounting frame. A fixed sleeve is fixedly connected to the middle of the bottom end of the mounting frame. A threaded bolt is threadedly connected to the middle of the fixed sleeve; the fixed frame is used to fix the telescopic cylinders, the telescopic cylinders are used to push the moving plate, the connecting rods and the mounting frame, the mounting frame is used to rotatably mount the clamping blocks, and the threaded bolt is used to lock the clamping blocks;

[0007] Through the above technical solution, first, the clamping block rotates on the circular fixed block through the rotating groove provided, adjusts the position of the clamping block, and then fixes and locks the clamping block through the threaded bolt. Secondly, the telescopic end of the telescopic cylinder retracts inward, pushing the moving plate, connecting rod and mounting bracket to move inward, and the clamping block clamps and fixes the left and right ends of the outer side of the speaker diaphragm. The operation is convenient, and it can be applied to the clamping of speaker diaphragms of different sizes and shapes. Moreover, by adjusting the consistency of the clamping angle between the clamping block and the outer wall of the speaker diaphragm, the clamping area is increased, and the clamping stability is enhanced.

[0008] Further, connecting plates are fixedly connected to both the front and rear sides of the moving plate, circular grooves are provided in the middle of the connecting plates, guide rods are fixedly connected to the four inner corners of the fixed frame, and the connecting plates slide on the outer sides of the corresponding guide rods through the circular grooves;

[0009] Through the above technical solution, it plays a guiding role in the movement process of the moving plate, connecting rod, mounting bracket and clamping block, and increases the firmness of the connection.

[0010] Further, mounting grooves are provided on the inner sides near the upper parts of the clamping blocks, and anti-slip rubber plates are fixedly connected to the inner sides of the mounting grooves;

[0011] Through the above technical solution, when the clamping block clamps the speaker diaphragm, the anti-slip rubber plate provides an anti-slip effect, increasing the firmness when clamping the speaker diaphragm.

[0012] Further, rubber pads are fixedly connected to the tops of the threaded bolts;

[0013] Through the above technical solution, the anti-slip performance and stability performance when the top of the threaded bolt contacts and locks with the bottom of the clamping block are increased.

[0014] Further, a circular fixed block is provided in the middle of the upper end of the mounting bracket, and a circular rotating groove is provided in the middle of the outer side of the clamping block;

[0015] Through the above technical solution, the clamping block rotates on the circular fixed block through the rotating groove to adjust the position of the clamping block, increasing the convenience and installation convenience during use.

[0016] Further, a threaded hole is provided in the middle of the fixed sleeve;

[0017] Through the above technical solution, it is convenient for the threaded bolt to be threadedly installed and rotated in the fixed sleeve.

[0018] The utility model has the following beneficial effects:

[0019] First, place the diaphragm of the micro speaker in the middle of the upper end of the fixing frame, and finely adjust the rotation angle of the inner side of the clamping block. The clamping block rotates on the circular fixing block through the circular rotating groove provided on the clamping block to adjust the position of the clamping block, so that the angle of the outer side of the clamping block is consistent with the outer wall of the diaphragm. Then, rotate the threaded bolt upward in the threaded hole provided inside the fixing sleeve, and fix and lock the clamping block on the circular fixing block through the rubber pad. Secondly, the telescopic end of the telescopic cylinder retracts inward, pushing the moving plate, connecting rod and mounting frame to move inward. The connecting plates provided on the front and rear sides of the moving plate slide on the outer side of the guide rod through the circular groove. Finally, the left and right ends of the outer side of the diaphragm are clamped and fixed by the clamping block and the anti-slip rubber pad. The operation is convenient, and it can be applied to the clamping of diaphragms of different sizes and shapes. Moreover, by adjusting the clamping angle between the clamping block and the outer wall of the diaphragm to be consistent, the clamping area is increased, the clamping stability is enhanced, and at the same time, the installation and disassembly are convenient, avoiding the risk of easy thread slipping and damage when using a bench vice to clamp the diaphragm. Description of the Drawings

[0020] Figure 1 Figure 1 is a front three-dimensional structural schematic diagram of a clamping mechanism for a diaphragm of a micro speaker proposed by the present utility model;

[0021] Figure 2 Figure 2 is a front view of a clamping mechanism for a diaphragm of a micro speaker proposed by the present utility model;

[0022] Figure 3 Figure 3 is a three-dimensional structural schematic diagram of a clamping mechanism for a diaphragm of a micro speaker proposed by the present utility model;

[0023] Figure 4 Figure 4 is an exploded three-dimensional structural schematic diagram of a clamping device of a clamping mechanism for a diaphragm of a micro speaker proposed by the present utility model.

[0024] Legend:

[0025] 1. Fixing frame; 2. Telescopic cylinder; 3. Moving plate; 4. Connecting rod; 5. Mounting frame; 6. Clamping block; 7. Fixing sleeve; 8. Threaded bolt; 9. Connecting plate; 10. Guide rod; 11. Anti-slip rubber plate; 12. Rubber pad; 13. Circular fixing block; 14. Circular rotating groove; 15. Circular groove; 16. Threaded hole; 17. Mounting groove. Detailed Embodiment

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Referring to Figures 1-4 , an embodiment provided by the present invention: A clamping mechanism for a diaphragm of a micro speaker, including a fixed frame 1. Both the left and right ends of the inner side of the fixed frame 1 are fixedly connected to the fixed ends of the telescopic cylinders 2. The telescopic ends of the telescopic cylinders 2 are fixedly connected to the middle of the outer side of the moving plate 3. Both the front and rear ends of the inner side of the moving plate 3 are fixedly connected to one end of the connecting rod 4. The other ends of the connecting rod 4 are respectively fixedly connected to the front and rear sides of the mounting frame 5. Clamping blocks 6 are rotatably connected to the upper ends of the mounting frame 5. A fixed sleeve 7 is fixedly connected to the middle of the bottom end of the mounting frame 5. A threaded bolt 8 is threadedly connected to the middle of the fixed sleeve 7; the fixed frame 1 is used to fix the telescopic cylinder 2, the telescopic cylinder 2 is used to push the moving plate 3, the connecting rod 4 and the mounting frame 5, the mounting frame 5 is used to rotatably mount the clamping blocks 6, and the threaded bolt 8 is used to lock the clamping blocks 6.

[0028] Both the front and rear sides of the moving plate 3 are fixedly connected with connecting plates 9. Circular grooves 15 are arranged in the middle of the connecting plates 9. Guide rods 10 are fixedly connected to the four corners of the inner side of the fixed frame 1. The connecting plates 9 slide on the outside of the corresponding guide rods 10 through the circular grooves 15, guiding the moving process of the moving plate 3, the connecting rod 4, the mounting frame 5 and the clamping blocks 6, and increasing the stability of the connection. Anti-slip rubber plates 11 are fixedly connected to the inner sides of the upper parts of the clamping blocks 6. When the clamping blocks 6 clamp the diaphragm, the anti-slip rubber plates 11 are used for anti-slip effect, increasing the stability when clamping the diaphragm. Rubber pads 12 are fixedly connected to the tops of the threaded bolts 8, increasing the anti-slip performance and stability when the top of the threaded bolt 8 contacts and locks the bottom of the clamping block 6. A circular fixing block 13 is arranged in the middle of the upper end of the mounting frame 5. A circular rotating groove 14 is arranged in the middle of the outer side of the clamping block 6. The clamping block 6 rotates on the circular fixing block 13 through the rotating groove 14 to adjust the position of the clamping block 6, increasing the convenience and installation convenience during use. A threaded hole 16 is arranged in the middle of the fixed sleeve 7, facilitating the threaded installation and rotation of the threaded bolt 8 in the fixed sleeve 7.

[0029] Working principle: First, place the diaphragm of the micro speaker in the middle of the upper end of the fixing frame 1, and finely adjust the rotation angle of the inner side of the clamping block 6. Rotate the clamping block 6 on the circular fixing block 13 through the circular rotating groove 14 provided on the clamping block 6 to adjust the position of the clamping block 6 so that the angle of the outer side of the clamping block 6 is consistent with the outer wall of the diaphragm. Then, rotate the threaded bolt 8 upward in the threaded hole 16 provided inside the fixing sleeve 7 to fix and lock the clamping block 6 on the circular fixing block 13 through the rubber pad 12. Secondly, the telescopic end of the telescopic cylinder 2 extends inward to push the moving plate 3, the connecting rod 4, and the mounting frame 5 to move inward. The connecting plates 9 provided on the front and rear sides of the moving plate 3 slide on the outer side of the guide rod 10 through the circular groove 15. Finally, the left and right ends of the outer side of the diaphragm are clamped and fixed by the clamping block 6 and the anti-slip rubber pad 12.

[0030] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A clamping mechanism for a micro speaker cone, comprising a fixing frame (1), characterized in that: The left and right inner ends of the fixed frame (1) are fixedly connected to the fixed ends of the telescopic cylinder (2), the telescopic ends of the telescopic cylinder (2) are fixedly connected to the middle of the outer side of the movable plate (3), the front and rear ends of the inner side of the movable plate (3) are fixedly connected to one end of the connecting rod (4), the other end of the connecting rod (4) is respectively fixedly connected to the front and rear sides of the mounting frame (5), the upper end of the mounting frame (5) is rotatably connected to a clamping block (6), the middle part of the bottom end of the mounting frame (5) is fixedly connected to a fixing sleeve (7), and the middle part of the fixing sleeve (7) is threadedly connected to a threaded bolt (8); The fixing frame (1) is used to fix the telescopic cylinder (2); the telescopic cylinder (2) is used to push the moving plate (3), the connecting rod (4) and the mounting frame (5); the mounting frame (5) is used to rotate and install the clamping block (6); and the threaded bolt (8) is used to lock the clamping block (6).

2. The clamping mechanism for a micro speaker cone according to claim 1, characterized in that: The front and rear sides of the movable plate (3) are fixedly connected to connecting plates (9), the middle of the connecting plates (9) are provided with circular grooves (15), the four inner corners of the fixed frame (1) are fixedly connected to guide rods (10), and the connecting plates (9) slide on the outer sides of the corresponding guide rods (10) through the circular grooves (15).

3. The clamping mechanism for a micro speaker cone according to claim 1, characterized in that: The inner side of the upper part of the clamping block (6) is provided with a mounting groove (17), and the inner side of the mounting groove (17) is fixedly connected with an anti-skid rubber plate (11).

4. The clamping mechanism for a micro speaker cone according to claim 1, characterized in that: The top ends of the threaded bolts (8) are fixedly connected with rubber pads (12).

5. The clamping mechanism for a micro speaker cone according to claim 1, characterized in that: A circular fixing block (13) is provided in the middle of the upper end of the mounting frame (5), and a circular rotating groove (14) is provided in the middle of the outer side of the clamping block (6).

6. The clamping mechanism for a micro speaker cone according to claim 1, characterized in that: A threaded hole (16) is provided in the middle of the fixing sleeve (7).

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