Shell port burr trimming device of micro loudspeaker
By designing a burr removal device for the port of a miniature speaker housing, a stable limit for the speaker is achieved by using a structure such as a slide, screw, and limiting plate, and a motor-driven grinding rod is used to remove burrs. This solves the problem of cumbersome operation in the existing technology and improves processing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU HUALONG ELECTRONICS CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-05-12
AI Technical Summary
Existing technologies make it difficult to quickly and stably deburr multiple miniature speaker housing ports simultaneously, and the operation is cumbersome.
A burr trimming device for the port of a miniature speaker housing, comprising a worktable, a limiting mechanism, and a grinding component, is designed. The device achieves stable positioning of the speaker through a structure including a slide, a screw, a limiting plate, and a locking bolt, and performs deburring operation using a motor-driven grinding rod.
It achieves stability by adjusting according to the size of the speaker housing, and can simultaneously perform end deburring on multiple speaker housings, thus improving processing efficiency.
Smart Images

Figure CN224223463U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of loudspeaker manufacturing technology, and in particular to a device for trimming burrs on the housing port of a miniature loudspeaker. Background Technology
[0002] Miniature loudspeakers work by converting sound into electrical signals. When an electric current passes through a magnet, the magnet generates a magnetic field. This magnetic field acts on a coil on the diaphragm, causing the coil to vibrate. The vibrating coil then drives the diaphragm, producing sound. Depending on the magnitude and frequency of the current, the diaphragm vibrates at different speeds, resulting in different pitches of sound.
[0003] When producing loudspeakers, it is necessary to deburr the port of the loudspeaker housing. Conventional deburring devices are not convenient for placing multiple loudspeakers at the same time and for quick adaptive adjustments. The entire positioning process is relatively cumbersome and it is not convenient for grinding and deburring the ends of the loudspeakers. Utility Model Content
[0004] The purpose of this invention is to address the deficiencies of the prior art by providing a device for trimming burrs at the housing port of a miniature loudspeaker, thereby solving the problems mentioned in the background art.
[0005] A device for trimming burrs at the housing port of a miniature loudspeaker includes a worktable and a limiting mechanism and a grinding assembly mounted on the worktable. The limiting mechanism includes a first slide, a screw, a second slide, a base plate, a limiting plate, a limiting part, a connecting plate, and a locking bolt. The first slide consists of two slides that slide along two grooves in the middle of the worktable. The screw can be fixed to the first slide by a nut. The base plate is mounted on the top of the screw, and its two sides slide along the side grooves of the side walls of the worktable via the second slide. The limiting plate is mounted on the base plate by a support column. Multiple limiting parts are provided, and they slide in pairs opposite each other on both sides of the placement holes on the limiting plate. The connecting plate is used to connect multiple limiting parts on the same side of the limiting plate in series. The locking bolt is used to limit the connecting plate to the side of the limiting plate.
[0006] By adopting the above technical solution, the speaker can be stably limited.
[0007] The polishing assembly includes a motor and a polishing rod. The motor is mounted on one side wall of the worktable, and the polishing rod is fixedly mounted at the output end of the motor.
[0008] By adopting the above technical solution, the speaker housing is deburred.
[0009] A push plate is also installed on one side of the base plate.
[0010] By adopting the above technical solutions, it is convenient to drive the bottom plate to move the speaker housing, and the grinding component is used for grinding and deburring.
[0011] A rectangular groove penetrating through the middle is opened in the chute in the middle of the workbench, and the screw rod is arranged corresponding to the rectangular groove.
[0012] By adopting the above technical solutions, it is convenient for the bottom plate to move normally.
[0013] The lower end of the first sliding seat is a sliding plate, and the upper end is arranged in a "C" - shaped structure with the opening downward. The screw rod longitudinally penetrates through the first sliding seat, and two nuts arranged on the screw rod are respectively located on the upper and lower sides of the middle section of the upper end of the first sliding seat.
[0014] By adopting the above technical solutions, it is convenient to adjust the height of the speaker housing, so as to facilitate the normal grinding process of the grinding component.
[0015] The beneficial effects of the burr trimming device for the housing port of the micro - speaker of the present utility model are as follows:
[0016] The device is convenient to adjust and limit according to the size of the speaker housing, ensuring the stability of the speaker housing during the processing process, and at the same time performing end - burr removal treatment on multiple speaker housings, improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 FIG. 1 is a schematic diagram of the overall structure of the burr trimming device for the housing port of the micro - speaker proposed by the present utility model;
[0018] Figure 2 FIG. 2 is a schematic diagram of the limiting mechanism structure of the burr trimming device for the housing port of the micro - speaker proposed by the present utility model;
[0019] Figure 3 FIG. 3 is another perspective view of the limiting mechanism of the burr trimming device for the housing port of the micro - speaker proposed by the present utility model.
[0020] In the figure: 1, workbench; 2, motor; 3, grinding rod; 4, first sliding seat; 5, screw rod; 6, second sliding seat; 7, bottom plate; 8, limiting plate; 9, pushing plate; 10, limiting part; 11, connecting plate; 12, locking bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] The following describes the preferred embodiments of the present utility model in detail with reference to the drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present utility model.
[0022] Refer to Figure 1-3, A burr trimming device for the housing port of a micro speaker, including a workbench 1 and a limiting mechanism and a grinding component installed on the workbench 1. The limiting mechanism includes a first sliding seat 4, a screw rod 5, a second sliding seat 6, a bottom plate 7, a limiting plate 8, a limiting part 10, a connecting plate 11 and a locking bolt 12. There are two first sliding seats 4 which slide along two sliding grooves in the middle of the workbench 1 respectively. The screw rod 5 can be limited on the first sliding seat 4 through a nut. The bottom plate 7 is installed at the top end of the screw rod 5, and its two sides slide along the sliding grooves on the two side walls of the workbench 1 through the second sliding seats 6. The limiting plate 8 is installed on the bottom plate 7 through a support column. There are multiple limiting parts 10, and they are arranged in pairs and slide oppositely on both sides of the placing holes on the limiting plate 8. The connecting plate 11 is used to connect multiple limiting parts 10 on the same side of the limiting plate 8 in series, and the locking bolt 12 is used to limit the connecting plate 11 on the side of the limiting plate 8;
[0023] Place the speaker housing corresponding to the placing holes on the limiting plate 8, so that the bottom of the speaker housing is supported by the bottom plate 7. Push the connecting plate 11 to push the limiting parts 10 to limit both sides of the speaker housing. Then rotate the locking bolts 12 on both sides of the limiting plate 8 to limit the connecting plate 11, and the speaker housing can be limited;
[0024] The lower end of the first sliding seat 4 is a sliding plate, and the upper end is arranged in a "C" - shaped structure with an opening downward. The screw rod 5 runs longitudinally through the first sliding seat 4. There are two nuts on the screw rod 5, which are respectively located on the upper and lower sides of the middle section of the upper end of the first sliding seat 4. Hold the pushing plate 9 and push the bottom plate 7 to move the speaker housing to the lower left of the grinding rod 3. Referring to the grinding rod 3, adjust the height of the bottom plate 7 up and down so that the top surface of the speaker housing can be ground by the grinding rod 3 to achieve deburring. After adjustment, rotate the nuts on the screw rod 5 to limit the screw rod 5 on the first sliding seat 4, and the height limit of the speaker housing is completed;
[0025] The grinding component includes a motor 2 and a grinding rod 3. The motor 2 is installed on one side wall of the workbench 1, and the grinding rod 3 is fixedly installed at the output end of the motor 2; At this time, drive the motor 2 to drive the grinding rod 3. There is also a pushing plate 9 installed on one side of the bottom plate 7. Hold the pushing plate 9 and push the bottom plate 7 to move. When the speaker housing passes through the grinding rod 3, it will be ground by the grinding rod 3 to achieve the deburring trimming operation of the port;
[0026] This device is convenient to adjust and limit according to the size of the speaker housing, ensures the stability of the speaker housing during the processing, and simultaneously performs deburring on the ends of multiple speaker housings to improve the processing efficiency.
[0027] The sliding grooves in the middle of the workbench 1 are provided with through - rectangular grooves in the middle. The screw rod 5 is arranged corresponding to the rectangular groove. Because it is necessary to adjust the height of the speaker housing and the screw rod 5 needs to be adjusted downward, the rectangular groove is set to facilitate the screw rod 5 to have enough space for height adjustment.
[0028] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.
Claims
1. A device for trimming burrs at the housing port of a miniature loudspeaker, comprising a worktable (1) and a limiting mechanism and a polishing assembly mounted on the worktable (1), characterized in that: The limiting mechanism includes a first sliding seat (4), a screw rod (5), a second sliding seat (6), a bottom plate (7), a limiting plate (8), a limiting portion (10), a connecting plate (11) and a locking bolt (12). The first sliding seats (4) are two and slide respectively along the two sliding grooves in the middle of the workbench (1). The screw rod (5) can be limited on the first sliding seat (4) through a nut. The bottom plate (7) is installed at the top end of the screw rod (5), and its two sides slide along the sliding grooves on the two side walls of the workbench (1) through the second sliding seats (6). The limiting plate (8) is installed on the bottom plate (7) through a support column. The limiting portions (10) are provided in multiple numbers and slide oppositely in pairs on both sides of the placing holes on the limiting plate (8). The connecting plate (11) is used to connect in series the multiple limiting portions (10) on the same side of the limiting plate (8). The locking bolt (12) is used to limit the connecting plate (11) on the side of the limiting plate (8).
2. The device for trimming burrs at the housing port of a miniature loudspeaker according to claim 1, characterized in that: The grinding assembly includes a motor (2) and a grinding rod (3). The motor (2) is installed on one side wall of the workbench (1), and the grinding rod (3) is fixedly installed at the output end of the motor (2).
3. The device for trimming burrs at the housing port of a miniature loudspeaker according to claim 2, characterized in that: A pushing plate (9) is further installed on one side of the bottom plate (7).
4. The device for trimming burrs at the housing port of a miniature loudspeaker according to claim 3, characterized in that: A through rectangular groove is opened in the middle of the sliding groove in the middle of the workbench (1), and the screw rod (5) is arranged corresponding to the rectangular groove.
5. The device for trimming burrs at the housing port of a miniature loudspeaker according to claim 4, characterized in that: The lower end of the first sliding seat (4) is a sliding plate, and the upper end is provided with a "C"-shaped structure with an opening downward. The screw rod (5) longitudinally penetrates through the first sliding seat (4), and two nuts arranged on the screw rod (5) are respectively located on the upper and lower sides of the middle section of the upper end of the first sliding seat (4).