Testing device for loudspeaker and detection process thereof

Abstract

The invention relates to the technical field of loudspeaker testing, in particular to a loudspeaker testing device which comprises a detection mechanism, feeding and discharging mechanisms assembled on the two sides of the top of the detection mechanism and a grabbing mechanism assembled above the detection mechanism, the detection mechanism comprises a detection cabinet, and a containing groove is formed in the top of the detection cabinet; the invention further discloses a detection process of the loudspeaker testing device. The detection process comprises the following steps of S1, discharging treatment; s2, conveying treatment; s3, grabbing and feeding are conducted; s4, limiting and fixing; s5, signal connection; s6, playing sound; s7, loudspeaker analysis is carried out; s8, sealing test; and S9, blanking and discharging. The loudspeaker testing device is ingenious in structure and reasonable in design, a loudspeaker can be tested in a closed and soundproof environment, noise generated in the loudspeaker testing process is reduced, hearing damage to workers is avoided, the loudspeaker is moved and grabbed through cooperation of the feeding and discharging mechanism and the grabbing mechanism, and the working efficiency is improved. Therefore, the device can continuously test the loudspeaker.

Description

Technical Field

[0001] This invention relates to the field of loudspeaker testing technology, specifically to a testing device and testing process for loudspeakers. Background Technology

[0002] A loudspeaker, commonly known as a horn or speaker box (usually referring to a complete loudspeaker system), is an electronic device that converts electrical signals into sound signals. It is the final output device of all audio playback systems (such as mobile phones, televisions, computers, home theaters, and concert sound systems), and determines the sound quality we hear. Loudspeakers need to be tested during the production process.

[0003] During the speaker manufacturing process, it is usually necessary to test whether the speaker can produce sound to meet the required production standards. However, existing testing methods have some problems in use, such as: 1. It may harm the hearing of staff: Prolonged loudspeaker testing can significantly affect the hearing of staff, and may even lead to irreversible occupational hearing damage. In addition, the sound testing of loudspeakers at close and long distances is carried out by staff manually moving closer and further away, which will greatly increase the workload of staff. 2. Limited testing efficiency: When testing speakers, staff mostly use manual loading and unloading. Manual loading and unloading increases the testing time for a single speaker and makes it impossible to perform continuous testing, thus reducing the efficiency of speaker testing. In addition, manual loading and unloading may also cause speakers to fall and be damaged due to slipping by staff.

[0004] To address these issues, we propose a testing device and its testing process for loudspeakers. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the prior art by providing a testing device and testing process for loudspeakers.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A testing device for loudspeakers and its testing process include a testing mechanism and loading / unloading mechanisms mounted on both sides of the top of the testing mechanism, as well as a gripping mechanism mounted on top of the testing mechanism. The testing mechanism includes a testing cabinet, the top of which has a placement slot, and a testing hole is located in the center of the placement slot. Sound insulation cotton is fixedly installed on the inner wall of the testing cabinet. A slide rod is mounted on one side of the inner side of the testing cabinet, and a lifting seat is slidably installed on the outer wall of the slide rod. A sound sensor is fixedly installed on one side of the lifting seat. An adjustment motor is fixedly installed on the top of the slide rod, and a threaded rod that is threadedly connected to the lifting seat is fixedly installed at the output end of the adjustment motor. A U-shaped plate is fixedly installed on the outer side of the top of the testing cabinet. An input push rod is fixedly installed on the rear side of the top of the U-shaped plate via an assembly plate. A movable plate is fixedly installed on the output end of the input push rod. Electrical contacts are fixedly installed on both sides of the front of the movable plate, and input spring wires are installed on both sides of the back of the movable plate.

[0007] In the aforementioned speaker testing device, the loading and unloading mechanism includes a loading rack mounted on one side of the testing cabinet and a unloading rack mounted on the other side of the testing cabinet. The bottom of both the loading rack and the unloading rack is fixedly installed with a fixed base connected to the testing cabinet. Drive rollers and follower rollers are rotatably installed on both sides inside the loading rack and the unloading rack. Loading belts and unloading belts are rotatably installed inside the loading rack and the unloading rack through the drive rollers and the follower rollers.

[0008] In the aforementioned speaker testing device, a positioning push rod with its output end extending into the placement slot is fixedly installed on the top of the testing cabinet, and a positioning push plate is fixedly installed on the output end of each positioning push rod.

[0009] In the aforementioned speaker testing device, the gripping mechanism includes a gripping frame installed on the back of the testing cabinet. An electric slide rail is fixedly installed on the top of the gripping frame, and a gripping push rod is fixedly installed on the bottom of the electric slide rail via a slide block. A double-headed cylinder is fixedly installed at the output end of the gripping push rod, and grippers are fixedly installed at both output ends of the double-headed cylinder.

[0010] In the aforementioned speaker testing device, an output interface is fixedly installed on the upper front of the testing cabinet, and an output spring wire connected to a sound sensor is fixedly connected to the back of the output interface.

[0011] In the aforementioned speaker testing device, drive motors are fixedly installed on the inner sides of the front of both the loading rack and the unloading rack. The output ends of the two sets of drive motors pass through the loading rack and the unloading rack respectively and are fixedly connected to the drive roller.

[0012] In the aforementioned speaker testing device, multiple sets of positioning rubber plates are fixedly installed at equal intervals on the outer walls of both the feed belt and the unfeed belt.

[0013] In the aforementioned speaker testing device, the top and bottom of the slide rod are fixedly installed with fixing plates, and both sets of fixing plates are connected to the inner wall of the testing cabinet through the sound insulation cotton.

[0014] In the above-mentioned speaker testing device, a rubber pad is fixedly installed on the top of the placement slot, and the top of the rubber pad contacts the bottom of the speaker. A cabinet base is fixedly installed on the bottom of the testing cabinet.

[0015] A testing process for a loudspeaker testing device, characterized by comprising the following steps: S1. Unloading process: The speaker to be tested is placed on the feeding belt by the staff manually or by an external robotic arm. S2. Conveying process: The feeding belt moves the speaker placed on top of it to the designated position. The positioning rubber plate positions the speaker on the feeding belt 203 to ensure that the feeding belt does not slip when moving the speaker. S3. Grabbing and feeding: The double-headed cylinder and gripper work together to grab the speaker moving on the feeding belt, and move the grabbed speaker to the placement slot on the top of the testing cabinet via the electric slide rail, so that the device can automatically feed the speaker during operation. S4. Limiting and fixing: The top extension of multiple sets of positioning push rods can move the positioning push plate, thereby clamping and positioning the speaker in the placement slot through multiple sets of positioning push plates. S5, Signal Connection: The input push rod extends and pushes the movable plate forward. The movement of the movable plate allows the two sets of energized contacts on the front to be inserted into the signal interface on the speaker. The energized contacts are connected to external audio devices via input spring wires, thereby allowing audio signals to be input to the speaker. S6. Sound playback: A normal speaker will emit sound after receiving an audio signal, while a faulty speaker will not emit sound or will not emit sound properly after receiving an audio signal. S7. Speaker Analysis: The sound sensor collects the sound emitted by the speaker. The sound sensor is connected to an external analysis host. The analysis host analyzes the audio collected by the sound sensor to determine whether the speaker is playing sound normally. The analysis host also marks speakers that fail the test. S8. Sealing test: The test cabinet and sound insulation cotton block the sound emitted during speaker testing, allowing the speaker to be tested in a soundproof space, thus avoiding any damage to the hearing of the staff caused by the sound during speaker testing. S9. Discharge: The dual-headed cylinder and gripper grab the speakers that pass and fail the test and place them on the discharge belt. The speakers that have passed the test can be discharged through the discharge belt. The staff can manually or the external robotic arm can sort and remove the speakers that have passed and failed the test, which facilitates the continuous automated testing of speakers by the device.

[0016] Compared with existing technologies, the beneficial effects of the present invention are as follows: 1. By installing the speaker on the top of the testing cabinet, sound can be played into the testing cabinet during speaker testing. The sound insulation cotton inside the testing cabinet can block the sound inside the testing cabinet. The sound sensor installed in the testing cabinet can collect the sound emitted by the speaker during testing and analyze it through the external host. This achieves the blocking and shielding of the sound emitted by the speaker during testing, avoiding the situation where the sound emitted by the speaker during testing will damage the hearing of the staff. 2. During the test, the height of the sound sensor can be adjusted using a slider. Adjusting the height of the sound sensor allows for adjustment of its distance from the speaker, enabling the collection and analysis of both near and far sounds during speaker testing, thus improving the speaker testing method of the device. 3. The feeding belt can transport the speaker to be tested to a designated position, which facilitates rapid feeding during the operation of the device. At the same time, the unloading belt can discharge the speaker after the test is completed, so that the device can perform continuous testing of the speaker, which greatly improves the efficiency of speaker testing. 4. The dual-headed cylinder and gripper can load and unload the speaker by gripping it, avoiding the possibility of the speaker being dropped due to slippage during manual loading and unloading, which would cause damage. This increases the stability of the device during speaker loading and unloading tests and ensures safety.

[0017] In summary, this invention has a clever structure and reasonable design, enabling the testing of loudspeakers in a sealed and soundproof environment. This reduces the noise generated during loudspeaker testing and avoids hearing damage to workers. The cooperation between the loading / unloading mechanism and the gripping mechanism moves and grips the loudspeakers, allowing the device to perform continuous testing and thus ensuring testing efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a testing device for a loudspeaker proposed in this invention.

[0019] Figure 2 This is a schematic diagram of the operation of a test device for a loudspeaker proposed in this invention.

[0020] Figure 3 This is a partial structural diagram of the testing cabinet in a speaker testing device proposed in this invention.

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the testing cabinet in a speaker testing device proposed in this invention.

[0022] Figure 5 This is a schematic diagram of the speaker mounting structure in a speaker testing device proposed in this invention.

[0023] Figure 6 This is a schematic diagram of the spiral plate structure in a speaker testing device proposed in this invention.

[0024] Figure 7 This is a partially enlarged schematic diagram of the spiral plate structure in a speaker testing device proposed in this invention.

[0025] Figure 8 This is a schematic diagram of the energized contact connection in a speaker testing device proposed in this invention.

[0026] Figure 9 This is a schematic diagram of the gripper structure in a speaker testing device proposed in this invention.

[0027] Figure 10 This is a schematic diagram of the feeding belt and unloading belt mechanism in a speaker testing device proposed in this invention.

[0028] Figure 11 This is a schematic diagram of the drive roller and follower roller structure in a speaker testing device proposed in this invention.

[0029] In the diagram: 1. Inspection mechanism; 101. Inspection cabinet; 102. Cabinet base; 103. Placement slot; 104. Inspection hole; 105. Positioning push plate; 106. Positioning push rod; 107. Rubber pad; 108. Sound insulation cotton; 2. Loading and unloading mechanism; 201. Loading rack; 202. Unloading rack; 203. Loading belt; 204. Unloading belt; 205. Positioning rubber plate; 206. Drive motor; 207. Fixed base; 208. Drive roller; 209. Follower roller; 3. Gripper 301. Holding mechanism; 302. Electric slide rail; 303. Gripping frame; 304. Gripping push rod; 305. Double-headed cylinder; 306. Gripper; 4. Slide rod; 401. Threaded rod; 402. Lifting seat; 403. Adjusting motor; 404. Output interface; 405. Output spring wire; 406. Sound sensor; 407. Fixing plate; 5. Recurved plate; 501. Assembly plate; 502. Input push rod; 503. Moving plate; 504. Power contact; 505. Input spring wire. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention. Example 1 Please see Figures 1-4 As shown, this embodiment proposes a testing device for loudspeakers, including a testing mechanism 1 and loading / unloading mechanisms 2 mounted on both sides of the top of the testing mechanism 1, and a gripping mechanism 3 mounted on the top of the testing mechanism 1. The testing mechanism 1 includes a testing cabinet 101, with a placement slot 103 on the top of the testing cabinet 101 and a testing hole 104 at the center of the placement slot 103. Sound insulation cotton 108 is fixedly installed on the inner wall of the testing cabinet 101. A slide rod 4 is mounted on one side of the inside of the testing cabinet 101. A lifting seat 402 is slidably installed on the outer wall of the slide rod 4. A sound sensor 406 is fixedly installed on one side of the lifting seat 402. An adjustment motor 403 is fixedly installed on the top of the slide rod 4, and a threaded rod 401 is fixedly installed at the output end of the adjustment motor 403.

[0031] In use, the speaker is placed in the placement slot 103 on top of the testing cabinet 101. The placement slot 103 limits the placement of the speaker, and the speaker's sound-emitting surface corresponds to the detection hole 104 inside the placement slot 103. The sound emitted during speaker testing enters the testing cabinet 101 through the detection hole 104. The testing cabinet 101 provides a sealed space for speaker testing, shielding the emitted sound, which is then collected by the internal sound sensor 406. The sound insulation cotton 108 installed on the inner wall of the testing cabinet 101 improves the sound insulation quality, thereby avoiding or significantly reducing the leakage of speaker test sound from the testing cabinet 101. The sound sensor 406 installed inside the testing cabinet 101 collects the sound during speaker testing and transmits the collected audio information to an external analysis host. The connected analysis host analyzes the audio information collected by the sound sensor 406, thereby determining the speaker's normal operation through the sound sensor 406 and the analysis host. In the fault diagnosis, the analysis host transmits the analyzed information to the connected display screen. The display screen shows the data from the speaker test, allowing staff to determine the speaker's condition without relying on auditory judgment. This avoids potential hearing damage from prolonged auditory reliance. The sound sensor 406 is slidably mounted on the slide rod 4 via the lifting base 402. Therefore, the height of the sound sensor 406 can be adjusted using the lifting base 402 and the slide rod 4. The threaded rod 401 at the output of the adjusting motor 403 is threadedly connected to the lifting base 402. By adjusting the motor 403 to rotate the threaded rod 401, the lifting base 402 and the sound sensor 406 can be adjusted up and down. This adjustment allows the sound sensor 406 to collect and analyze both near-field and far-field sounds during speaker testing, increasing the device's testing methods and improving the quality of speaker testing.

[0032] Example 2 Based on Example 1, such as Figure 1 , Figure 2 , Figure 10 and Figure 11 As shown, the loading and unloading mechanism 2 includes a loading rack 201 mounted on one side of the inspection cabinet 101 and a unloading rack 202 mounted on the other side of the inspection cabinet 101. The bottom of both the loading rack 201 and the unloading rack 202 is fixedly installed with a fixed seat 207 connected to the inspection cabinet 101. The two sides inside the loading rack 201 and the unloading rack 202 are respectively rotatably mounted with a drive roller 208 and a follower roller 209. The inside of both the loading rack 201 and the unloading rack 202 is rotatably mounted with a loading belt 203 and a unloading belt 204 through the drive roller 208 and the follower roller 209.

[0033] In use, the loading rack 201 and unloading rack 202 are both fixedly installed on the upper sides of the testing cabinet 101 via the fixing base 207. Both sides of the loading rack 201 and unloading rack 202 are rotatably mounted with drive rollers 208 and follower rollers 209. The loading rack 201 is rotatably mounted with a loading belt 203 via the drive rollers 208 and follower rollers 209. The loading belt 203 can support the speaker to be tested and move the speaker to the designated position, thereby facilitating the device to quickly load the speaker during testing. The unloading rack 202 is also rotatably mounted with a unloading belt 204 via the drive rollers 208 and follower rollers 209. The unloading belt 204 can discharge the speaker after the test is completed, facilitating the device to test subsequent speakers. This allows the device to perform continuous speaker testing, greatly improving the efficiency of speaker testing.

[0034] like Figure 6 As shown, a U-shaped plate 5 is fixedly installed on the outer side of the top of the testing cabinet 101. An input push rod 502 is fixedly installed on the rear side of the top of the U-shaped plate 5 via an assembly plate 501. A movable plate 503 is fixedly installed at the output end of the input push rod 502. Power-on contacts 504 are fixedly installed on both sides of the front of the movable plate 503. Input spring wires 505 connected to the power-on contacts 504 are installed on both sides of the back of the movable plate 503.

[0035] In use, the U-shaped plate 5 is fixedly installed on the top of the testing cabinet 101 and sleeved on the outside of the placement slot 103. After the gripper 305 places the speaker into the placement slot 103, the input push rod 502 extends to push the moving plate 503 and inserts the two sets of energized contacts 504 on the front of the moving plate 503 into the speaker's signal interface. The two sets of energized contacts 504 are connected to external audio equipment through the input spring wire 505, so that an audio signal can be input to the speaker during testing, allowing the speaker to perform sound testing.

[0036] like Figure 3 As shown, a positioning push rod 106 with its output end extending into the placement slot 103 is fixedly installed on the top of the testing cabinet 101, and a positioning push plate 105 is fixedly installed on the output end of the positioning push rod 106.

[0037] In use, after the clamp 305 places the speaker into the placement slot 103, multiple sets of positioning push rods 106 can extend to push the corresponding positioning push plate 105. By pushing the positioning push plate 105, its inner wall can come into contact with the speaker mounting plate. Thus, through the cooperation of the positioning push rods 106 and the positioning push plate 105, the speaker can be clamped and fixed during testing, avoiding vibration during speaker testing.

[0038] Example 3 like Figure 1 , Figure 2 and Figure 9 As shown, the gripping mechanism 3 includes a gripping frame 302 installed on the back of the inspection cabinet 101. An electric slide rail 301 is fixedly installed on the top of the gripping frame 302. A gripping push rod 303 is fixedly installed on the bottom of the electric slide rail 301 through a slide block. A double-headed cylinder 304 is fixedly installed at the output end of the gripping push rod 303. Both output ends of the double-headed cylinder 304 are fixedly equipped with grippers 305.

[0039] In use, the electric slide rail 301 moves the double-headed cylinder 304 to the feeding belt 203, and the double-headed cylinder 304 is lowered by the downward movement of the gripping push rod 303. The double-headed cylinder 304 retracts, driving the two sets of grippers 305 to move inward. Thus, the two sets of grippers 305 moving inward clamp the speaker magnet on the feeding belt 203, realizing the function of gripping the speaker. After gripping the speaker, the gripping push rod 303 and the electric slide rail 301 move it to the top of the testing cabinet 101, which facilitates the device to test the speaker. It can also grip the speaker on the testing cabinet 101 after testing and place it on the unloading belt 204, avoiding the situation where the speaker slips and falls when the operator picks it up manually, and ensuring the stability of loading and unloading during speaker testing.

[0040] like Figures 2-5 As shown, an output interface 404 is fixedly installed on the top of the front of the testing cabinet 101, and an output spring wire 405 connected to the sound sensor 406 is fixedly connected to the back of the output interface 404.

[0041] In use, the output interface 404 facilitates the connection of an external analysis host. The output interface 404 is fixedly connected to the sound sensor 406 via the output spring wire 405. Thus, through the cooperation of the output spring wire 405 and the output interface 404, the audio data collected by the sound sensor 406 can be transmitted to the external analysis host, improving the convenience of connecting the external analysis host to the device.

[0042] like Figure 10 and Figure 11 As shown, drive motors 206 are fixedly installed on the inner side of the front of the loading rack 201 and the unloading rack 202. The output ends of the two sets of drive motors 206 pass through the loading rack 201 and the unloading rack 202 respectively and are fixedly connected to the drive roller 208.

[0043] In use, the output ends of the two sets of drive motors 206 are fixedly connected to the drive rollers 208 inside the loading frame 201 and the unloading frame 202, respectively. Thus, the two sets of drive motors 206 can drive the drive rollers 208 inside the loading frame 201 and the unloading frame 202 to rotate. Therefore, the two sets of drive motors 206 can provide power to the loading belt 203 and the unloading belt 204 during operation, thereby facilitating the conveying and moving of the speaker by the loading belt 203 and the unloading belt 204.

[0044] like Figure 10 and Figure 11 As shown, multiple sets of positioning rubber plates 205 are fixedly installed at equal intervals on the outer walls of the feeding belt 203 and the unloading belt 204.

[0045] In use, the positioning plates 205 are fixedly installed at equal intervals on the surfaces of the feeding belt 203 and the unloading belt 204. The positioning plates 205 can limit the position of the speaker when it is placed on the feeding belt 203 and the unloading belt 204, avoiding the sliding displacement of the feeding belt 203 and the unloading belt 204 during the movement of the speaker, and ensuring the stability of the feeding belt 203 and the unloading belt 204 when the speaker is moved.

[0046] like Figure 4 and Figure 5 As shown, the top and bottom of the slide bar 4 are fixedly installed with fixing plates 407, and both sets of fixing plates 407 penetrate the sound insulation cotton 108 and are connected to the inner wall of the testing cabinet 101.

[0047] In use, two sets of fixing plates 407 are fixedly installed on the top and bottom of the slide rod 4 respectively, and one side of each set of fixing plates 407 is fixedly installed on the inner wall of the inspection cabinet 101 by bolts. Therefore, the slide rod 4 can be installed and fixed by the two sets of fixing plates 407, ensuring the stability of the slide rod 4 during operation.

[0048] like Figure 2 and Figure 3 As shown, a rubber pad 107 is fixedly installed on the top of the placement slot 103, and the top of the rubber pad 107 contacts the bottom of the speaker. A cabinet base 102 is fixedly installed on the bottom of the testing cabinet 101.

[0049] In use, the rubber pad 107 provides flexible contact and protection to the bottom of the speaker when it is placed in the placement slot 103, thereby preventing the speaker from being scratched in the placement slot 103. The rubber pad 107 also increases the sealing of the speaker when it is placed in the placement slot 103, preventing sound from escaping through the gap between the speaker and the placement slot 103. The cabinet base 102 increases the contact area between the bottom of the testing cabinet 101 and the ground, thereby ensuring the stability of the testing cabinet 101 when placed and improving the stability of the device during testing operations.

[0050] A testing process for a loudspeaker testing device includes the following steps: S1. Unloading process: The speaker to be tested is placed on the feeding belt 203 by the staff manually or by an external robotic arm. S2. Conveying process: The feeding belt 203 moves the speaker placed on its top to the designated position. The positioning rubber plate 205 positions the speaker on the feeding belt 203 to ensure that the feeding belt 203 does not slip when moving the speaker. S3. Grabbing and feeding: The double-headed cylinder 304 and the gripper 305 work together to grab the speaker that moves along the feeding belt 203. The grabbed speaker is moved by the electric slide rail 301 and placed into the placement slot 103 on the top of the detection cabinet 101, so that the device can automatically feed during operation. S4. Limiting and fixing: The top extension of multiple sets of positioning push rods 106 can move the positioning push plate 105, thereby clamping and positioning the speaker in the placement slot 103 through multiple sets of positioning push plates 105. S5, Signal connection: The input push rod 502 extends and pushes the movable plate 503 forward. The movement of the movable plate 503 allows the two sets of energized contacts 504 on the front to be inserted into the signal interface on the speaker. The energized contacts 504 are connected to external audio devices through the input spring wire 505, thereby allowing audio signals to be input to the speaker. S6. Sound playback: A normal speaker will emit sound after receiving an audio signal, while a faulty speaker will not emit sound or will not emit sound properly after receiving an audio signal. S7. Speaker analysis: The sound sensor 406 collects the sound emitted by the speaker. The sound sensor 406 is connected to an external analysis host. The analysis host analyzes the audio collected by the sound sensor 406 to determine whether the speaker is playing sound normally. The analysis host also marks speakers that fail the test. S8. Sealing test: The test cabinet 101 and sound insulation cotton 108 block the sound emitted during the speaker test, so that the speaker can be tested in a soundproof space, avoiding the situation where the sound of the speaker test will cause harm to the hearing of the staff. S9. Discharge: The double-headed cylinder 304 and the gripper 305 grab the speakers that have passed and failed the test and place them on the discharge belt 204. Therefore, the speakers that have passed the test can be discharged through the discharge belt 204. The staff can manually or the external robotic arm can sort and remove the speakers that have passed and failed the test, so that the device can perform continuous automated testing of speakers, which significantly improves the testing efficiency.

[0051] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A testing device for loudspeakers, characterized in that: It includes a testing mechanism (1) and loading / unloading mechanisms (2) mounted on both sides of the top of the testing mechanism (1), as well as a gripping mechanism (3) mounted on the top of the testing mechanism (1). The testing mechanism (1) includes a testing cabinet (101), the top of the testing cabinet (101) is provided with a placement slot (103), a testing hole (104) is provided at the center of the placement slot (103), sound insulation cotton (108) is fixedly installed on the inner wall of the testing cabinet (101), a slide rod (4) is assembled on one side of the inside of the testing cabinet (101), a lifting seat (402) is slidably installed on the outer wall of the slide rod (4), a sound sensor (406) is fixedly installed on one side of the lifting seat (402), an adjustment motor (403) is fixedly installed on the top of the slide rod (4), and a threaded rod (401) that is threadedly connected to the lifting seat (402) is fixedly installed at the output end of the adjustment motor (403). A U-shaped plate (5) is fixedly installed on the outer side of the top of the testing cabinet (101). An input push rod (502) is fixedly installed on the rear side of the top of the U-shaped plate (5) via an assembly plate (501). A movable plate (503) is fixedly installed at the output end of the input push rod (502). Power-on contacts (504) are fixedly installed on both sides of the front of the movable plate (503). Input spring wires (505) are installed on both sides of the back of the movable plate (503).

2. The testing device for a loudspeaker according to claim 1, characterized in that: The loading and unloading mechanism (2) includes a loading rack (201) mounted on one side of the inspection cabinet (101) and a unloading rack (202) mounted on the other side of the inspection cabinet (101). The bottom of the loading rack (201) and the unloading rack (202) are fixedly installed with a fixed seat (207) connected to the inspection cabinet (101). The two sides inside the loading rack (201) and the unloading rack (202) are respectively rotatably installed with a drive roller (208) and a follower roller (209). The inside of the loading rack (201) and the unloading rack (202) are rotatably installed with a loading belt (203) and a unloading belt (204) through the drive roller (208) and the follower roller (209).

3. The testing device for a loudspeaker according to claim 2, characterized in that: The top of the testing cabinet (101) is fixedly installed with a positioning push rod (106) whose output end extends into the placement slot (103), and the output end of the positioning push rod (106) is fixedly installed with a positioning push plate (105).

4. A testing device for loudspeakers according to claim 3, characterized in that: The gripping mechanism (3) includes a gripping frame (302) installed on the back of the testing cabinet (101). An electric slide rail (301) is fixedly installed on the top of the gripping frame (302). A gripping push rod (303) is fixedly installed on the bottom of the electric slide rail (301) via a slide block. A double-headed cylinder (304) is fixedly installed at the output end of the gripping push rod (303). Both output ends of the double-headed cylinder (304) are fixedly equipped with grippers (305).

5. A testing device for loudspeakers according to claim 4, characterized in that: An output interface (404) is fixedly installed on the upper front of the testing cabinet (101), and an output spring wire (405) connected to the sound sensor (406) is fixedly connected to the back of the output interface (404).

6. A testing device for a loudspeaker according to claim 5, characterized in that: The inner sides of the front of the loading rack (201) and the unloading rack (202) are both fixedly equipped with drive motors (206). The output ends of the two sets of drive motors (206) pass through the loading rack (201) and the unloading rack (202) respectively and are fixedly connected to the drive roller (208).

7. A testing device for loudspeakers according to claim 6, characterized in that: Multiple sets of positioning rubber plates (205) are fixedly installed at equal intervals on the outer walls of the feeding belt (203) and the unloading belt (204).

8. A testing device for a loudspeaker according to claim 7, characterized in that: The top and bottom of the slide bar (4) are fixedly installed with fixing plates (407), and both sets of fixing plates (407) are connected to the inner wall of the testing cabinet (101) through the sound insulation cotton (108).

9. A testing device for a loudspeaker according to claim 8, characterized in that: A rubber pad (107) is fixedly installed on the top of the placement slot (103), and the top of the rubber pad (107) contacts the bottom of the speaker. A cabinet base (102) is fixedly installed on the bottom of the detection cabinet (101).

10. A testing process for a loudspeaker testing device, using the testing device as described in claim 9, characterized in that: Includes the following steps: S1. Unloading process: The speaker to be tested is placed on the feeding belt (203) by the staff manually or by an external robotic arm. S2, conveying process: the feeding belt (203) moves the speaker placed on its top to the designated position, and the positioning rubber plate (205) positions the speaker on the feeding belt (203) to ensure that the feeding belt (203) will not slip when moving the speaker; S3. Grabbing and feeding: The double-headed cylinder (304) and the gripper (305) work together to grab the speaker that moves along the feeding belt (203). The grabbed speaker is moved by the electric slide rail (301) and placed into the placement slot (103) on the top of the inspection cabinet (101), so that the device can automatically feed during operation. S4. Limiting and fixing, the top extension of multiple sets of positioning push rods (106) can move the positioning push plate (105), thereby clamping and positioning the speaker in the placement slot (103) through multiple sets of positioning push plates (105). S5, Signal connection: The input push rod (502) pushes the movable plate (503) forward by extending it. The movement of the movable plate (503) can insert the two sets of power contacts (504) on the front into the signal interface on the speaker. The power contacts (504) are connected to the external audio device through the input spring wire (505), so that an audio signal can be input to the speaker. S6. Sound playback: A normal speaker will emit sound after receiving an audio signal, while a faulty speaker will not emit sound or will not emit sound properly after receiving an audio signal. S7. Speaker analysis: The sound sensor (406) collects the sound emitted by the speaker. The sound sensor (406) is connected to an external analysis host. The analysis host analyzes the audio collected by the sound sensor (406) to determine whether the speaker is playing sound normally. The analysis host marks the speakers that fail the test. S8. Sealing test: The test cabinet (101) and sound insulation cotton (108) block the sound emitted during the speaker test, so that the speaker can be tested in a soundproof space, avoiding the situation where the sound during the speaker test will harm the hearing of the staff. S9. Discharge: The double-headed cylinder (304) and gripper (305) grab the speakers that pass and fail the test and place them on the discharge belt (204). Therefore, the speakers that have passed the test can be discharged through the discharge belt (204). The staff can manually or the external robot can sort and remove the speakers that pass and fail the test, which facilitates the device to perform continuous automated testing of the speakers.

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