Sealing test device of loudspeaker

Abstract

The utility model relates to the field of loudspeaker production, in particular to a sealing test device of a loudspeaker. The utility model provides a sealing test device of a loudspeaker. A sealing test device of a loudspeaker comprises a base, a servo motor, a rotating disc, a placing seat, a torsion spring, a hydraulic cylinder, a sealing seat, a first spring and a sealing mechanism. The sealing seat and the placing seat are matched to form a complete sealed space, so that the loudspeaker can be subjected to air pressure test in the sealed space to judge the sealing condition of the loudspeaker, and meanwhile, the hydraulic cylinder pushes the gap filling air bag to move in the sealing process, so that the sealing condition of the loudspeaker is judged. Therefore, when the sealing seat and the placing seat are engaged and spliced, the compression cylinder sends gas into the gap filling air bag, the gap filling air bag can be expanded, the gap between the sealing seat and the placing seat is further shielded and sealed, the sealing performance of a sealed space is enhanced, and the scientificity and accuracy of detection are improved.

Description

Technical Field

[0001] The utility model relates to the field of loudspeaker production, in particular to a sealing test device for a loudspeaker. Background Art

[0002] A speaker is a device that converts electrical signals into sound, and is usually used to play audio content such as music, voice, prompt sounds, etc. After the speaker is produced, in order to avoid quality problems, its sealing needs to be tested. The common sealing test method is to place the test object in a closed space, and then inject a specific value of gas into the closed space to observe whether the air pressure value changes. However, in order to facilitate the placement of objects, two containers that can be spliced ​​together are generally used, and there will be gaps in the splicing. When the air pressure value is too high, the problem of gas leakage from the gap cannot be avoided.

[0003] Therefore, a sealing test device for a loudspeaker is now developed to address the above problems. Utility Model Content

[0004] In order to overcome the disadvantages of existing devices that gaps may exist during the splicing process and gas leakage from the gaps cannot be avoided when the air pressure value is too large, the utility model provides a sealing test device for a loudspeaker.

[0005] The technical solution of the utility model is: a sealing test device for a loudspeaker, comprising a base, a servo motor is installed on the upper front side of the base by bolts, a rotating disk is connected to the output shaft of the servo motor, six placement seats are rotatably arranged on the rotating disk, two torsion springs are connected between the placement seats and the rotating disk, a hydraulic cylinder is installed on the front side of the upper part of the base by bolts, a closing seat that cooperates with the placement seats to form a closed space is slidably connected to the telescopic end of the hydraulic cylinder, a first spring is connected between the closing seat and the telescopic end of the hydraulic cylinder, and a closing mechanism for further improving the test sealing is arranged on the closing seat.

[0006] As a further preferred scheme, the closing mechanism includes a compression cylinder, the compression cylinder is connected to the bottom of the telescopic end of the hydraulic cylinder, a caulking airbag is connected to the telescopic rod of the compression cylinder, a second spring is connected between the caulking airbag and the compression cylinder, a conveying pipe is connected between the output port of the compression cylinder and the caulking airbag, and a limit block is connected to the base for blocking and limiting the caulking airbag.

[0007] As a further preferred scheme, it also includes a discharging mechanism, which includes a pushing cylinder, the pushing cylinder is installed on the upper left side of the base by bolts, the telescopic rod of the pushing cylinder is connected to a pushing frame, and the placement seat is connected to two connecting rods, and the connecting rods are pushed by the pushing frame, the upper left side of the base is connected to a guide plate for guiding the discharge of the speaker with problems, and the upper left side of the base is connected to a collecting trough plate for storing the speakers with problems, and the collecting trough plate is located on the right side of the guide plate.

[0008] As a further preferred solution, the closing seat is engaged with the placing seat.

[0009] As a further preferred solution, the closed seat is provided with an air supply pipe.

[0010] As a further preferred solution, the guide plate is an arc-shaped structure.

[0011] By adopting the above technical solution, the utility model has the following advantages:

[0012] 1. The utility model relies on the cooperation of the closing seat and the placing seat to form a complete closed space, so that the loudspeaker can be subjected to air pressure test in a closed space to judge the sealing condition of the loudspeaker. At the same time, during the closing process, the caulking airbag is pushed to move by the hydraulic cylinder, so that the compression cylinder sends gas into the caulking airbag while the closing seat and the placing seat are meshed and spliced, so that the caulking airbag can expand, further shield and seal the gap between the closing seat and the placing seat, enhance the sealing of the closed space, and improve the scientificity and accuracy of the detection.

[0013] 2. The utility model drives the push frame to move by pushing the cylinder, so that the placement seat can automatically flip outward, pour the problematic speakers into the guide plate, and collect them uniformly in the collection trough plate, reducing the manual sorting operation of the operator and further improving the operating efficiency and convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the first three-dimensional structure of the utility model.

[0015] Figure 2 This is a schematic diagram of the second three-dimensional structure of the utility model.

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the closing mechanism of the utility model.

[0017] Figure 4 It is a three-dimensional structural sectional view of the closing mechanism of the utility model.

[0018] Figure 5It is a three-dimensional structural schematic diagram of the discharging mechanism of the utility model.

[0019] Wherein: 1-base, 2-servo motor, 3-rotating disk, 4-placing seat, 5-torsion spring, 6-hydraulic cylinder, 7-closing seat, 8-first spring, 9-closing mechanism, 91-compression cylinder, 92-caulking airbag, 93-second spring, 94-conveying pipeline, 95-limiting block, 10-discharging mechanism, 101-pushing cylinder, 102-pushing frame, 103-connecting rod, 104-guide plate, 105-collecting trough plate. DETAILED DESCRIPTION

[0020] The technical solution is further described below in conjunction with specific embodiments. It should be noted that the words indicating directions such as up, down, left, and right mentioned in this article are only for the position of the structure shown in the corresponding drawings. The serial numbers of the parts in this article, such as first, second, etc., are only used to distinguish the objects described and do not have any order or technical meaning. The words such as connection and coupling in this application include direct and indirect connection (coupling) unless otherwise specified.

[0021] Example 1

[0022] A speaker sealing test device, such as Figure 1 and Figure 2 As shown, it includes a base 1, a servo motor 2 is installed on the upper front side of the base 1 by bolts, the output shaft of the servo motor 2 is set to face upward, a rotating disk 3 is connected to the output shaft of the servo motor 2, six placement seats 4 for placing speakers are rotatably arranged on the rotating disk 3, two torsion springs 5 ​​are connected between the placement seats 4 and the rotating disk 3, a hydraulic cylinder 6 is installed on the front side of the upper part of the base 1 by bolts, the telescopic end of the hydraulic cylinder 6 is set to face downward, and a closing seat 7 that cooperates with the placement seat 4 to form a closed space is slidably connected to the telescopic end of the hydraulic cylinder 6, the closing seat 7 is meshed with the placement seat 4, an air supply pipe is provided on the closing seat 7, a first spring 8 is connected between the closing seat 7 and the telescopic end of the hydraulic cylinder 6, and a closing mechanism 9 for further improving the test sealing is provided on the closing seat 7.

[0023] like Figure 1 , Figure 3 and Figure 4 As shown, the closing mechanism 9 includes a compression cylinder 91, the compression cylinder 91 is connected to the bottom of the telescopic end of the hydraulic cylinder 6, a caulking airbag 92 is connected to the telescopic rod of the compression cylinder 91, a second spring 93 is connected between the caulking airbag 92 and the compression cylinder 91, a conveying pipe 94 is connected between the output port of the compression cylinder 91 and the caulking airbag 92, and a limit block 95 for blocking and limiting the caulking airbag 92 is connected to the base 1.

[0024] It should be noted that when the speaker is produced, it is placed on the placement seat 4, and then the servo motor 2 is started. The rotation of the output shaft of the servo motor 2 will drive the rotating disk 3 to start rotating, so that the speakers on the placement seat 4 move to the bottom of the closed seat 7 in turn. Whenever a speaker moves to the bottom of the closed seat 7, the hydraulic cylinder 6 is started, and the telescopic end of the hydraulic cylinder 6 begins to extend downward, so that the closed seat 7 and the compression cylinder 91 both move downward. At this time, the closed seat 7 will engage with the corresponding placement seat 4 to form a closed space, and the first spring 8 will be compressed. At the same time, the lower side of the caulking airbag 92 will contact the limit block 95. Since the telescopic end of the hydraulic cylinder 6 is moving downward, the caulking airbag 92 will be driven to move upward, so that the telescopic rod of the compression cylinder 91 begins to slide upward and shrink, and the second spring 93 is compressed. At this time, the air in the compression cylinder 91 will pass through The delivery pipe 94 enters the caulking airbag 92, thereby expanding the caulking airbag 92 and filling the gap between the closing seat 7 and the placement seat 4, further enhancing the sealing of the test, and finally sending gas through the air delivery pipe on the closing seat 7, and constantly detecting the air pressure value in the closed space, continuing for a period of time and observing the change of the air pressure value. If the air pressure value decreases, it indicates that there is a problem with the sealing of the speaker. After the detection is completed, as the telescopic end of the hydraulic cylinder 6 contracts upward and resets, at this time, under the action of the first spring 8 and the second spring 93, the closing seat 7 and the caulking airbag 92 will move and reset. At the same time, as the caulking airbag 92 resets, the telescopic rod of the compression cylinder 91 extends downward and resets, thereby extracting the gas in the caulking airbag 92, so that the caulking airbag 92 no longer expands. Then the operator can rotate the placement seat 4 outward to remove the speaker that has completed the test.

[0025] Example 2

[0026] On the basis of Example 1, Figure 1 and Figure 5 As shown, a discharging mechanism 10 is also included, and the discharging mechanism 10 includes a pushing cylinder 101. The pushing cylinder 101 is installed on the upper left side of the base 1 by bolts. The pushing cylinder 101 is connected to the telescopic rod of the pushing cylinder 102. Two connecting rods 103 are connected to the placement seat 4, and the connecting rods 103 are pushed by the pushing frame 102. A guide plate 104 is connected to the upper left side of the base 1 for guiding the discharge of the speaker with problems. The guide plate 104 is an arc-shaped structure, which can buffer and guide the discharge of the speaker to avoid further damage to the speaker. A collecting trough plate 105 is connected to the upper left side of the base 1 for storing the speaker with problems. The collecting trough plate 105 is located on the right side of the guide plate 104.

[0027] It should be noted that when a sealing problem is detected in the speaker, as the rotating disk 3 drives the placement seat 4 to continue to rotate counterclockwise, the placement seat 4 will move to the right side of the guide plate 104, and then the pushing cylinder 101 will be started, and the telescopic rod of the pushing cylinder 101 will move to the right, thereby causing the pushing frame 102 to move to the right and push the adjacent connecting rod 103, so that the corresponding placement seat 4 is flipped 135 degrees to the outside, and then the speaker on the placement seat 4 falls into the guide plate 104, and under the guidance of the guide plate 104, it enters the collection trough plate 105 to complete the storage.

[0028] The above description is only an example of the implementation of the present invention and is not intended to limit the present invention. Any equivalent replacement made within the principle of the present invention shall be included in the protection scope of the present invention. The contents not elaborated in the present invention belong to the existing technology known to the technicians in this professional field.

Claims

1. A speaker sealing test device, characterized in that: The invention comprises a base (1), a servo motor (2) is installed on the upper front side of the base (1) by bolts, a rotating disk (3) is connected to the output shaft of the servo motor (2), six placement seats (4) are rotatably arranged on the rotating disk (3), two torsion springs (5) are connected between the placement seats (4) and the rotating disk (3), a hydraulic cylinder (6) is installed on the upper front side of the base (1) by bolts, a closing seat (7) is slidably connected to the telescopic end of the hydraulic cylinder (6) and cooperates with the placement seat (4) to form a closed space, a first spring (8) is connected between the closing seat (7) and the telescopic end of the hydraulic cylinder (6), and a closing mechanism (9) for further improving the test sealing is arranged on the closing seat (7).

2. A speaker sealing test device as claimed in claim 1, characterized in that: The sealing mechanism (9) comprises a compression cylinder (91), the compression cylinder (91) is connected to the bottom of the telescopic end of the hydraulic cylinder (6), a caulking airbag (92) is connected to the telescopic rod of the compression cylinder (91), a second spring (93) is connected between the caulking airbag (92) and the compression cylinder (91), a conveying pipeline (94) is connected between the output port of the compression cylinder (91) and the caulking airbag (92), and a limiting block (95) for blocking and limiting the caulking airbag (92) is connected to the base (1).

3. A speaker sealing test device as claimed in claim 2, characterized in that: The device also comprises a discharge mechanism (10), wherein the discharge mechanism (10) comprises a pushing cylinder (101), the pushing cylinder (101) is mounted on the upper left side of the base (1) by means of bolts, the telescopic rod of the pushing cylinder (101) is connected to a pushing frame (102), the placement seat (4) is connected to two connecting rods (103), the connecting rods (103) are pushed by the pushing frame (102), the upper left side of the base (1) is connected to a guide plate (104) for guiding the discharge of speakers with problems, the upper left side of the base (1) is connected to a collection slot plate (105) for storing speakers with problems, and the collection slot plate (105) is located on the right side of the guide plate (104).

4. A speaker sealing test device as claimed in claim 1, characterized in that: The closing seat (7) is engaged with the placing seat (4).

5. The speaker sealing test device according to claim 1, characterized in that: The closed seat (7) is provided with an air delivery pipe.

6. A speaker sealing test device as claimed in claim 3, characterized in that: The guide plate (104) is an arc-shaped structure.

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