Four-station voice coil jig
By designing a four-station voice coil fixture, the side projection, front limit projection and rear limit projection are used to cooperate with the grooves of the upper mold, and combined with the use of positioning vertical columns, the accuracy and quality problems caused by the lack of positioning structure of the voice coil forming mold in the prior art are solved, and the high accuracy and high quality of voice coil forming are achieved.
Patent Information
- Application Number
- CN202323418462.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-14
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2033-12-14
AI Technical Summary
Due to the lack of positioning structure of the existing laptop voice coil molds, the position deviation of the upper and lower molds at the molding cavity, resulting in unqualified accuracy and quality of the molded product.
A four-station voice coil fixture is designed, including four molding stations in the middle of the top surface of the main body, each molding station is equipped with a side projection, a front limit projection and a rear limit projection, which corresponds to the groove at the corresponding position of the bottom of the upper mold, and is equipped with a vertical column to ensure the positioning accuracy of the upper mold and the main body.
Through this design, the accuracy and quality of the molded product can be ensured, the accuracy of mold clamping can be improved, and the high accuracy and high quality of voice coil molding can be ensured.
Smart Images
Figure CN222628407U_ABST
Abstract
Description
Technical field:
[0001] The utility model relates to the technical field related to loudspeakers, and more specifically to a four-station voice coil fixture. Background technology:
[0002] The existing speaker voice coils for laptop computers are generally manufactured by placing a metal ring on a jig (mold) and simultaneously forming the metal ring and plastic through injection molding.
[0003] However, the existing notebook computer voice coil is generally formed with a molding cavity on the lower mold, but without other positioning structures. Only positioning parts are set on the edges of the upper and lower molds for positioning. Since the notebook computer voice coil itself has a relatively high precision, the structural precision of the molding cavity and other parts on the corresponding mold is relatively high. When the upper and lower molds are positioned by setting positioning parts on the edges, they can still be pressed together with a small deviation. However, the positions of the upper and lower molds at the corresponding molding cavities have produced slight deviations, and some corresponding grooves or protrusions of the molded voice coil products have deviations, making the molded products unqualified. Utility model content:
[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a four-station voice coil fixture, which can form four voice coils at the same time. The side protrusions, front limit protrusions and rear limit protrusions provided at each forming station can correspond to and cooperate with the grooves at the corresponding positions of the bottom surface of the upper mold, thereby ensuring the accuracy and quality of the molded products. In addition, the positioning vertical columns provided therein can ensure the upper and lower position positioning of the upper mold and the main body, thereby further improving the mold closing accuracy.
[0005] The solution of the utility model to solve the technical problem is:
[0006] A four-station voice coil jig comprises a main body, wherein four molding stations are arranged in the middle of the top surface of the main body;
[0007] The forming station includes an upwardly extending middle protrusion formed in the middle of the top surface of the main body, a downwardly extending forming groove formed on the top surface of the edge of the middle protrusion, side protrusions extending front and back are formed on the top surface of the main body on the left and right sides of the middle protrusion, strip protrusions extending left and right are formed on the top surface of the main body on the front and rear sides of the middle protrusion, a rear limiting protrusion extending upward is formed on the top surface at the rear side of the rear strip protrusion, and a front limiting protrusion extending upward is formed on the top surface at the front side of the front strip protrusion.
[0008] The top surfaces of the main body at the left and right parts behind the strip-shaped protrusion at the rear of each forming station are formed with positioning concave holes, and the bottom surfaces of the positioning concave holes are formed with two positioning vertical columns extending upwards.
[0009] Side through holes are formed at the front and rear parts of the left and right sides of the middle raised part.
[0010] The outstanding effects of the utility model are:
[0011] It can mold four voice coils at the same time, and each molding station is equipped with side protrusions, front limit protrusions and rear limit protrusions which can correspond and cooperate with the grooves at the corresponding positions on the bottom surface of the upper mold, ensuring the accuracy and quality of the molded products. In addition, the positioning vertical columns can ensure the upper and lower positioning of the upper mold and the main body, further improving the accuracy of the mold closing. Description of the drawings:
[0012] Figure 1 It is a partial structural schematic diagram of the utility model;
[0013] Figure 2 yes Figure 1 A partial enlarged view of
[0014] Figure 3 It is a partial top view of the utility model. Specific implementation method:
[0015] For example, see Figures 1 to 3 As shown, a four-station voice coil fixture includes a main body 10, and four molding stations 20 are provided in the middle of the top surface of the main body 10;
[0016] The molding station 20 includes a middle protrusion 21 extending upward formed in the middle of the top surface of the main body 10, a molding groove extending downward is formed on the edge top surface of the middle protrusion 21, side protrusions 22 extending forward and backward are formed on the top surface of the main body 10 on the left and right sides of the middle protrusion 21, strip protrusions 23 extending left and right are formed on the top surface of the main body 10 on the front and rear sides of the middle protrusion 21, a rear limit protrusion 231 extending upward is formed on the top surface at the rear side of the rear strip protrusion 23, a front limit protrusion 232 extending upward is formed on the top surface at the front of the front strip protrusion 23, and a middle positioning groove 221 is formed in the middle of the top surface of the side protrusion 22. The top surfaces of the side protrusion 22, the front limit protrusion 232 and the rear limit protrusion 231 are on the same horizontal plane.
[0017] Furthermore, the top surface of the main body 10 at the left and right parts behind the strip-shaped protrusion 23 at the rear of each forming station 20 is formed with a positioning recessed hole 11, and the bottom surface of the positioning recessed hole 11 is formed with two positioning vertical columns 12 extending upward.
[0018] Furthermore, vertical through holes 211 are formed on the top surface of the main body 10 at the front and rear parts of the middle part of the middle raised portion 21, and the outer side of the vertical through hole 211 extends outward, passing through the middle part of the strip-shaped raised portion 23, so that the strip-shaped raised portion 23 is divided into two strip-shaped raised portions. Similarly, the front limiting raised portion 232 and the rear limiting raised portion 231 corresponding to the strip-shaped raised portion 23 are also divided into two.
[0019] Furthermore, side through holes 212 are formed at the front and rear portions of the left and right sides of the middle raised portion 21 .
[0020] Furthermore, a waist-shaped through hole 213 is formed in the middle of the middle raised portion 21 .
[0021] In this embodiment, the main body 10 is a lower mold, which is positioned by the side protrusions 22, the front limiting protrusions 232 and the rear limiting protrusions 231 corresponding to the grooves of the upper mold;
[0022] At the same time, when the upper mold and the main body 10 are covered, the positioning vertical column 12 is inserted into the corresponding recessed hole on the bottom surface of the upper mold to realize the positioning of the upper mold and the main body 10 at each molding station 20. The positioning accuracy is high, ensuring the accuracy and quality of subsequent voice coil molding.
[0023] Similarly, the side through holes 212 , the vertical through holes 211 and the waist-shaped through holes 213 can also be inserted into the corresponding raised positioning parts of the upper mold to ensure the mold clamping accuracy of the upper mold and the main body 10 .
Claims
1. A four-station voice coil fixture, comprising a main body (10), characterized in that: Four molding stations (20) are provided in the middle of the top surface of the main body (10); The molding station (20) comprises a middle protrusion (21) extending upward formed in the middle of the top surface of the main body (10), a molding groove extending downward formed on the edge top surface of the middle protrusion (21), side protrusions (22) extending forward and backward are formed on the top surface of the main body (10) on the left and right sides of the middle protrusion (21), strip protrusions (23) extending left and right are formed on the top surface of the main body (10) on the front and rear sides of the middle protrusion (21), a rear limiting protrusion (231) extending upward is formed on the top surface at the rear side of the rear strip protrusion (23), and a front limiting protrusion (232) extending upward is formed on the top surface at the front part of the front strip protrusion (23).
2. A four-station voice coil fixture according to claim 1, characterized in that: A middle positioning groove (221) is formed in the middle of the top surface of the side protrusion (22).
3. A four-station voice coil fixture according to claim 1, characterized in that: The top surface of the side protrusion (22), the top surface of the front limiting protrusion (232) and the top surface of the rear limiting protrusion (231) are on the same horizontal plane.
4. The four-station voice coil fixture according to claim 1, characterized in that: The top surfaces of the main body (10) at the left and right parts behind the strip-shaped raised portion (23) at the rear of each molding station (20) are both formed with positioning recessed holes (11), and the bottom surfaces of the positioning recessed holes (11) are formed with two positioning vertical columns (12) extending upward.
5. The four-station voice coil fixture according to claim 1, characterized in that: Vertical through holes (211) are formed on the top surface of the main body (10) at the front and rear parts of the middle part of the middle raised part (21), and the vertical through holes (211) pass through the middle part of the strip-shaped raised part (23).
6. The four-station voice coil fixture according to claim 1, characterized in that: Side through holes (212) are formed at the front and rear parts of the left and right sides of the middle raised part (21).
7. The four-station voice coil fixture according to claim 1, characterized in that: A waist-shaped through hole (213) is formed in the middle of the middle raised portion (21).