A positioning tool for improving the assembly accuracy of a voice coil of a micro speaker

Abstract

The application relates to the field of loudspeaker processing, and discloses a micro loudspeaker positioning tool for improving the assembly precision of voice coils, which comprises a conveying frame and a fixing frame, a supporting frame is fixedly installed on the top of the conveying frame, an assembly mechanism is slidably connected to the surface of the supporting frame, two electric push rods are fixedly installed on the inner wall of the fixing frame, an adjusting frame is fixedly installed at the bottom end of the electric push rod, a sliding frame is slidably connected to the inner wall of the adjusting frame, a limiting plate is fixedly installed on one end of the adjusting frame and the sliding frame, the bottom end of the fixing frame is clamped with the surface of the conveying frame, and the two electric push rods are symmetrically distributed with the fixing frame as the axis. The application is characterized in that the fixing frame is connected with the surface of the conveying frame, the inner wall of the fixing frame is connected with the adjusting frame through the electric push rod, the inner wall of the adjusting frame is slidably installed with the sliding frame, and the one end of the adjusting frame and the sliding frame is fixedly connected with the limiting plate, so that the limiting plate is controlled through the electric push rod, and the position of the limiting plate relative to the workpiece is adjusted.

Description

Technical Field

[0001] This application relates to the field of loudspeaker manufacturing, and in particular to a miniature loudspeaker positioning fixture for improving the accuracy of voice coil assembly. Background Technology

[0002] A loudspeaker is an electroacoustic transducer that converts electrical signals into sound signals. It is widely used in various electronic devices to achieve sound output. A loudspeaker is a device that converts electrical energy into mechanical vibration through electromagnetic, piezoelectric, or electrostatic effects, thereby driving air to generate sound waves. Its core function is to achieve efficient conversion of electrical signals into sound energy. It is a core component of audio systems, communication equipment, and multimedia terminals. When assembling a loudspeaker voice coil, positioning fixtures are often needed to limit the movement of the workpiece. Loudspeaker voice coil assembly is the process of combining the voice coil, diaphragm, magnetic circuit, and other components into a complete loudspeaker system. Through voice coil fixing fixtures, positioning fixtures, and wire pressing and gluing fixtures, the voice coil is precisely glued to the diaphragm to form a semi-finished diaphragm. The magnet, electrode, and bracket are fixed by magnetic circuit gluing fixtures to form a semi-finished magnetic circuit. The semi-finished diaphragm is glued to the semi-finished magnetic circuit, and then welded, magnetized, and tested to finally obtain the finished loudspeaker.

[0003] Regarding the aforementioned technologies, the inventors believe that during the assembly of conventional loudspeaker voice coils, the processing parts at the upper end of the transmission frame are prone to shift due to the movement of the transmission frame and the influence of external forces. This results in assembly accuracy deviations during voice coil installation, thereby affecting the loudspeaker's processing performance.

[0004] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0005] To address the issue of deviations during speaker installation affecting the accuracy of voice coil assembly, this application provides a miniature speaker positioning fixture that improves the accuracy of voice coil assembly.

[0006] The miniature loudspeaker positioning fixture for improving voice coil assembly accuracy provided in this application adopts the following technical solution:

[0007] A miniature loudspeaker positioning fixture for improving voice coil assembly accuracy includes a transmission frame and a fixed frame. A support frame is fixedly installed on the top of the transmission frame, and an assembly mechanism is slidably connected to the surface of the support frame. Two electric push rods are fixedly installed on the inner wall of the fixed frame, and an adjustment frame is fixedly installed at the bottom of the electric push rods. A sliding frame is slidably connected to the inner wall of the adjustment frame. A limit plate is fixedly installed at one end of both the adjustment frame and the sliding frame. The bottom end of the fixed frame is engaged with the surface of the transmission frame. The two electric push rods are symmetrically distributed about the fixed frame, and the limit plate has a "V" shaped structure.

[0008] Preferably, a rotating plate is fixedly installed on the surface of each of the two limiting plates, and one end of each of the two rotating plates is fixedly connected to one end of the adjusting frame and the sliding frame, respectively. The two rotating plates are rotatably installed between each other, and the sliding frame and the adjusting frame have a "C" shaped structure.

[0009] Preferably, a threaded rod is fixedly mounted on the surface of the sliding frame, and a fixed cover is threadedly connected to the surface of the threaded rod. A limit ring is movably mounted on one end of the fixed cover, and the center of the limit ring is on the same straight line as the center of the threaded rod.

[0010] Preferably, the inner wall of the limiting plate is rotatably connected to a plurality of auxiliary wheels, and the plurality of auxiliary wheels are evenly distributed on the inner wall of the limiting plate.

[0011] Preferably, two mounting brackets are fixedly installed at the bottom of the fixed frame. The two mounting brackets are symmetrically distributed about the fixed frame, and the inner wall of the mounting bracket is slidably connected with a slide rail. One end of the slide rail is fixedly installed on the surface of the transmission frame, and the size of the slide rail surface is compatible with the size of the inner wall of the mounting bracket.

[0012] Preferably, the inner wall of the mounting bracket is slidably connected to a limiting block, the surface of the limiting block is slidably installed with the inner wall of the slide rail, and the size of the limiting block surface is adapted to the size of the inner wall of the mounting bracket.

[0013] Preferably, the inner wall of the limiting block is threaded with a fixing bolt, one end of the fixing bolt is engaged with the surface of the fixing frame, and an auxiliary plate is fixedly installed at the bottom of the fixing frame, the auxiliary plate being a diamond abrasive plate.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] 1. By connecting the fixed frame and the transmission frame surface, the inner wall of the fixed frame is connected to an adjusting frame via an electric push rod. A sliding frame is slidably installed on the inner wall of the adjusting frame. One end of both the adjusting frame and the sliding frame is fixedly connected to a limiting plate, so that the limiting plate can be controlled by the electric push rod to adjust the position of the limiting plate relative to the workpiece. A rotating plate is fixedly installed on the surface of the limiting plate to adjust the angle of the two limiting plates, thereby adjusting the position of the limiting plate according to workpieces of different sizes. A threaded rod is fixedly installed on the surface of the sliding frame, and a fixed cover is threadedly connected to the surface of the threaded rod. One end of the fixed cover is movably connected to a limiting ring, so that the limiting plate can be fixed at a suitable angle by means of the fixed cover and the threaded rod. Several auxiliary wheels are rotatably connected to the inner wall of the limiting plate to facilitate the movement of the workpiece. Compared with the existing technology, this method effectively improves the accuracy of speaker voice coil assembly.

[0016] 2. Two mounting brackets can also be installed at the bottom of the fixed frame. The inner wall of the mounting bracket is fixed to the surface of the transmission frame via a slide rail, so as to facilitate the installation and disassembly of the device using the slide rail and mounting bracket. The inner wall of the mounting bracket is slidably connected to a limit block, so as to fix the mounting bracket to the surface of the slide rail using the limit block. The inner wall of the limit block is threaded with a fixing bolt, one end of which is engaged with the surface of the fixed frame. An auxiliary plate made of diamond abrasive is fixedly installed at the bottom of the fixed frame, so as to fix the limit block with the fixing bolt, thereby ensuring the fixing effect of the limit block; effectively improving the use effect of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a miniature loudspeaker positioning fixture for improving the assembly accuracy of the voice coil, according to an embodiment of the application.

[0018] Figure 2 This is a schematic diagram of the fixing frame structure according to the application embodiment;

[0019] Figure 3 This is a side view of the embodiment of the application.

[0020] Figure 4 This is a schematic diagram of the structure at point A in the embodiment of the application.

[0021] Explanation of reference numerals in the attached drawings: 1. Transmission frame; 2. Support frame; 3. Assembly mechanism; 4. Fixing frame; 5. Electric push rod; 6. Adjusting frame; 7. Sliding frame; 8. Limiting plate; 9. Rotating plate; 10. Threaded rod; 11. Fixing cover; 12. Limiting ring; 13. Auxiliary wheel; 14. Mounting frame; 15. Slide rail; 16. Limiting block; 17. Fixing bolt; 18. Auxiliary piece. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0023] This application discloses a miniature loudspeaker positioning fixture for improving the assembly accuracy of voice coils, referring to... Figure 1 - Figure 2 The assembly includes a transmission frame 1, a support frame 2 fixedly mounted on the top of the transmission frame 1, and an assembly mechanism 3 slidably connected to the surface of the support frame 2. After the assembly mechanism 3 grasps the voice coil, the position of the assembly mechanism 3 is adjusted by the support frame 2 to align the voice coil with the workpiece for assembly. A fixing frame 4 is connected to the surface of the transmission frame 1. Two electric push rods 5 are fixedly mounted on the inner wall of the fixing frame 4. An adjustment frame 6 is fixedly connected to one end of the electric push rod 5. A sliding frame 7 is slidably mounted on the inner wall of the adjustment frame 6. A limit plate 8 is fixedly connected to one end of both the adjustment frame 6 and the sliding frame 7. The limit plate 8 is controlled by the electric push rods 5 to adjust the position of the workpiece, which effectively improves the assembly accuracy of the speaker voice coil and prevents the speaker voice coil from shifting during assembly.

[0024] Reference Figure 2 A rotating plate 9 is fixedly installed on the surface of the limiting plate 8. The two rotating plates 9 are rotatably connected. One end of the two rotating plates 9 is fixedly installed on one end of the adjusting frame 6 and the sliding frame 7, respectively. The angle of the two limiting plates 8 is adjusted so that the position of the limiting plate 8 can be adjusted according to the processing parts of different sizes. The electric push rod 5 is used to adjust the processing parts. A threaded rod 10 is fixedly installed on the surface of the sliding frame 7. A fixing cover 11 is threadedly connected to the surface of the threaded rod 10. One end of the fixing cover 11 is movably connected to a limiting ring 12. The limiting ring 12 prevents the fixing cover 11 from loosening. The angle of the sliding frame 7 is fixed by the fixing cover 11 and the threaded rod 10, so that the limiting plate 8 is fixed at a suitable angle. Several auxiliary wheels 13 are rotatably connected to the inner wall of the limiting plate 8. The auxiliary wheels 13 reduce the friction between the limiting plate 8 and the processing parts, making it more convenient for the processing parts to move.

[0025] Reference Figure 3 - Figure 4Two mounting brackets 14 are installed at the bottom of the fixed frame 4. A slide rail 15 is slidably connected to the inner wall of the mounting bracket 14. One end of the slide rail 15 is fixedly installed to the surface of the transmission frame 1. The fixed frame 4 and the surface of the transmission frame 1 are connected by the slide rail 15 and the mounting bracket 14, and the slide rail 15 and the mounting bracket 14 are separated to facilitate disassembly of the device. A limit block 16 is slidably connected to the inner wall of the mounting bracket 14. The surface of the limit block 16 is slidably installed to the inner wall of the slide rail 15. The mounting bracket 14 and the surface of the slide rail 15 are fixed by the limit block 16 to prevent the fixed frame 4 from loosening. A fixing bolt 17 is threadedly connected to the inner wall of the limit block 16. One end of the fixing bolt 17 is snapped into the surface of the fixed frame 4. An auxiliary piece 18 made of diamond abrasive is fixedly installed at the bottom of the fixed frame 4. The auxiliary piece 18 improves the stability of the fixed frame 4 after installation. The limit block 16 is fixed by the fixing bolt 17 to ensure the fixing effect of the limit block 16.

[0026] The implementation principle of the miniature loudspeaker positioning fixture for improving voice coil assembly accuracy in this application embodiment is as follows: A fixed frame 4 is connected to the surface of a transmission frame 1. Two electric push rods 5 are fixedly installed on the inner wall of the fixed frame 4. One end of each electric push rod 5 is fixedly connected to an adjusting frame 6. A sliding frame 7 is slidably installed on the inner wall of the adjusting frame 6. A limiting plate 8 is fixedly connected to one end of both the adjusting frame 6 and the sliding frame 7, so that the limiting plate 8 can be controlled by the electric push rods 5 to adjust the position of the workpiece, preventing the loudspeaker voice coil from shifting during assembly. A rotating plate 9 is fixedly installed on the surface of the limiting plate 8, and the two rotating plates 9 are rotatably connected. One end of each rotating plate 9 is fixed to one end of the adjusting frame 6 and the sliding frame 7, respectively. The installation allows for adjustment of the angles of the two limiting plates 8, thereby adjusting the position of the limiting plates 8 according to different sized workpieces. It works in conjunction with the electric push rod 5 to adjust the workpiece. A threaded rod 10 is fixedly installed on the surface of the sliding frame 7, and a fixing cover 11 is threadedly connected to the surface of the threaded rod 10. One end of the fixing cover 11 is movably connected to a limiting ring 12, which prevents the fixing cover 11 from becoming loose. The angle of the sliding frame 7 is fixed by means of the fixing cover 11 and the threaded rod 10, thereby fixing the limiting plate 8 at a suitable angle. Several auxiliary wheels 13 are rotatably connected to the inner wall of the limiting plate 8, so as to reduce the friction between the limiting plate 8 and the workpiece, making it more convenient for the workpiece to move.

[0027] Two mounting brackets 14 can also be installed at the bottom of the fixed frame 4. The inner wall of the mounting bracket 14 is slidably connected to a slide rail 15. One end of the slide rail 15 is fixedly installed to the surface of the transmission frame 1, so as to connect the fixed frame 4 and the surface of the transmission frame 1 with the slide rail 15 and the mounting bracket 14, and to separate the slide rail 15 and the mounting bracket 14 for easy disassembly of the device. The inner wall of the mounting bracket 14 is slidably connected to a limit block 16. The surface of the limit block 16 is slidably installed to the inner wall of the slide rail 15, so as to fix the mounting bracket 14 and the surface of the slide rail 15 with the limit block 16, thereby preventing the fixed frame 4 from loosening. The inner wall of the limit block 16 is threadedly connected to a fixing bolt 17. One end of the fixing bolt 17 is snapped into the surface of the fixed frame 4. The bottom of the fixed frame 4 is fixedly installed with an auxiliary piece 18 made of diamond abrasive. The auxiliary piece 18 improves the stability of the fixed frame 4 after installation, so as to fix the limit block 16 with the fixing bolt 17, thereby ensuring the fixing effect of the limit block 16.

[0028] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A miniature loudspeaker positioning fixture for improving voice coil assembly accuracy, comprising a transmission frame (1) and a fixing frame (4), characterized in that: A support frame (2) is fixedly installed on the top of the transmission frame (1). An assembly mechanism (3) is slidably connected to the surface of the support frame (2). Two electric push rods (5) are fixedly installed on the inner wall of the fixed frame (4). An adjustment frame (6) is fixedly installed at the bottom of the electric push rod (5). A sliding frame (7) is slidably connected to the inner wall of the adjustment frame (6). A limit plate (8) is fixedly installed at one end of both the adjustment frame (6) and the sliding frame (7).

2. The miniature loudspeaker positioning fixture for improving voice coil assembly accuracy according to claim 1, characterized in that: The bottom end of the fixed frame (4) is engaged with the surface of the transmission frame (1), the two electric push rods (5) are symmetrically distributed about the fixed frame (4), and the limiting plate (8) has a "V" shaped structure.

3. The miniature loudspeaker positioning fixture for improving voice coil assembly accuracy according to claim 1, characterized in that: Rotating plates (9) are fixedly installed on the surfaces of the two limiting plates (8). One end of the two rotating plates (9) is fixedly connected to one end of the adjusting frame (6) and the sliding frame (7), respectively. The two rotating plates (9) are installed to rotate relative to each other. The sliding frame (7) and the adjusting frame (6) are in a "C" shape.

4. The miniature loudspeaker positioning fixture for improving voice coil assembly accuracy according to claim 1, characterized in that: A threaded rod (10) is fixedly installed on the surface of the sliding frame (7). A fixed cover (11) is threadedly connected to the surface of the threaded rod (10). A limit ring (12) is movably installed at one end of the fixed cover (11). The center of the limit ring (12) and the center of the threaded rod (10) are on the same straight line.

5. The miniature loudspeaker positioning fixture for improving voice coil assembly accuracy according to claim 1, characterized in that: The inner wall of the limiting plate (8) is rotatably connected to several auxiliary wheels (13), and the several auxiliary wheels (13) are evenly distributed on the inner wall of the limiting plate (8).

6. The miniature loudspeaker positioning fixture for improving voice coil assembly accuracy according to claim 1, characterized in that: Two mounting brackets (14) are fixedly installed at the bottom of the fixed frame (4). The two mounting brackets (14) are symmetrically distributed about the fixed frame (4). A slide rail (15) is slidably connected to the inner wall of the mounting bracket (14). One end of the slide rail (15) is fixedly installed on the surface of the transmission frame (1). The size of the slide rail (15) is compatible with the size of the inner wall of the mounting bracket (14).

7. A miniature loudspeaker positioning fixture for improving voice coil assembly accuracy according to claim 6, characterized in that: The inner wall of the mounting bracket (14) is slidably connected to a limiting block (16), the surface of the limiting block (16) is slidably installed with the inner wall of the slide rail (15), and the size of the surface of the limiting block (16) is compatible with the size of the inner wall of the mounting bracket (14).

8. A miniature loudspeaker positioning fixture for improving voice coil assembly accuracy according to claim 7, characterized in that: The inner wall of the limiting block (16) is threaded with a fixing bolt (17), one end of the fixing bolt (17) is snapped into the surface of the fixing frame (4), and an auxiliary piece (18) is fixedly installed at the bottom of the fixing frame (4). The auxiliary piece (18) is a diamond sheet.

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