Pedestrian warning loudspeaker test equipment

Abstract

The invention discloses pedestrian warning loudspeaker test equipment, which comprises a base, a first test mechanism, a second test mechanism and a driving mechanism, and is characterized in that the rear end of the base is provided with a first test station and a second test station, and the top of the base is slidably connected with a first carrier plate and a second carrier plate; the first testing mechanism is arranged at a first testing station and comprises a first probe assembly, the second testing mechanism is arranged at a second testing station and comprises a second probe assembly, and the driving mechanism is used for driving the first probe assembly and the second probe assembly to synchronously and reversely lift. The pedestrian warning loudspeaker testing equipment is reasonable in structure, through the design of double-station alternate detection, waste of non-detection time is eliminated, the testing rhythm is remarkably shortened, and the production efficiency is greatly improved; moreover, mechanical linkage operation is adopted in the whole testing process, product clamping and loosening and probe assembly driving, a control system is simplified, and the manufacturing cost is saved.

Description

Technical Field

[0001] This invention relates to a pedestrian warning loudspeaker testing device. Background Technology

[0002] Pedestrian warning speakers are essential safety components in vehicles such as electric and hybrid vehicles, used to emit warning sounds when traveling at low speeds. Their performance directly affects driving safety. Therefore, each speaker must undergo rigorous electrical and acoustic performance testing before leaving the factory.

[0003] Currently, most common speaker testing equipment is single-station testing. During testing, manual or robotic arms are required to place the speaker at the testing station, followed by a series of actions including clamping, probe contact, testing, releasing, and removal. This single-station testing mode suffers from long testing cycles and low efficiency, making it difficult to meet the high-efficiency, high-cycle production requirements of modern production lines. Especially when the testing time itself is long, the loading / unloading and fixing times account for a significant portion of the entire cycle, severely restricting testing efficiency. Although some equipment attempts to adopt multi-station designs, the linkage between stations is often poor, the control logic is complex, and the complete overlap of testing and loading / unloading times is not effectively achieved, resulting in limited efficiency improvements.

[0004] Therefore, there is an urgent need for a loudspeaker testing device that can achieve efficient and continuous testing, and has a compact structure and reasonable control. Summary of the Invention

[0005] The purpose of this invention is to provide a pedestrian warning speaker testing device with a reasonable structure. Through the design of alternating dual-station testing, it eliminates the waste of non-testing time, significantly shortens the testing cycle, and greatly improves production efficiency. Furthermore, the entire testing process, including product clamping and loosening, as well as the driving of the probe assembly, adopts mechanized linkage operation, which simplifies the control system and saves manufacturing costs.

[0006] To achieve the above objectives, the technical solution of the present invention is to design a pedestrian warning loudspeaker testing device, including a base, a first testing mechanism, a second testing mechanism, and a driving mechanism; The base has a first test station and a second test station at its rear end. The top of the rear end of the base has a mounting plate, and the top of the base is slidably connected to a first carrier plate and a second carrier plate. The first carrier plate is used to move the speaker to be tested to the first test station, and the second carrier plate is used to move the speaker to be tested to the second test station. The first testing mechanism is set at the first testing station, and the first testing mechanism includes a first lifting plate and a first probe assembly set at the bottom of the first lifting plate. The first lifting plate is slidably connected to the mounting plate, and the bottom of the first lifting plate is provided with a first toothed rack. The second testing mechanism is set at the second testing station, and the second testing mechanism includes a second lifting plate and a second probe assembly set at the bottom of the second lifting plate. The second lifting plate is slidably connected to the mounting plate, and a second rack is provided at the bottom of the second lifting plate. The drive mechanism includes a motor, a first rotating shaft, and a gear. The first rotating shaft is rotatably connected to the mounting plate. The motor is drively connected to the first rotating shaft. The gear is fixedly sleeved on the first rotating shaft. The gear is located between the first rack and the second rack, and the gear meshes with the first rack and the second rack respectively.

[0007] Preferably, the top of the first carrier plate is provided with a first positioning groove, one end of which penetrates through the side wall of the first carrier plate; the top of the second carrier plate is provided with a second positioning groove, one end of which penetrates through the side wall of the second carrier plate; the first testing station is provided with a first clamping block, which is slidably connected to the mounting plate and connected to a first return spring; one bottom side of the first clamping block is provided with a first clamping part corresponding to the first positioning groove, and the top side of the first clamping block is provided with a first force-bearing inclined surface; the first clamping part is provided with a first elastic pad for contacting the speaker; the second testing station is provided with a second The clamping block has a second clamping block that is slidably connected to the mounting plate and is connected to a second return spring. The bottom side of the second clamping block has a second clamping part corresponding to the second positioning groove, and the top side of the second clamping block has a second force-bearing inclined surface. The second clamping part has a second elastic pad for contacting the speaker. A swing plate is fixedly sleeved on the first rotating shaft. The gear is located between the swing plate and the mounting plate. The top two sides of the swing plate have a first pushing part and a second pushing part, respectively. The first pushing part is used to push against the first force-bearing inclined surface of the first clamping block, and the second pushing part is used to push against the second force-bearing inclined surface of the second clamping block.

[0008] Preferably, the mounting plate is provided with a travel limit groove, and the bottom of the swing plate is provided with a movable pin, one end of which extends into the travel limit groove.

[0009] Preferably, a sleeve is rotatably connected to the mounting plate via a second rotating shaft, the second rotating shaft being located at the bottom of the sleeve, a clearance groove being provided on the top side wall of the sleeve, the end of the movable pin away from the travel limit groove extending into the clearance groove, and a compression spring being provided in the sleeve between the movable pin and the second rotating shaft.

[0010] Preferably, the front end of the base is provided with a first cylinder and a second cylinder, the first cylinder being drivenly connected to the first carrier plate, and the second cylinder being drivenly connected to the second carrier plate.

[0011] The advantages and beneficial effects of this invention are as follows: It provides a pedestrian warning speaker testing device with a reasonable structure. Through the design of alternating detection at dual workstations, it eliminates the waste of non-detection time, significantly shortens the testing cycle, and greatly improves production efficiency. Furthermore, the entire testing process, including product clamping and loosening, as well as the driving of the probe assembly, adopts mechanized linkage operation, which simplifies the control system and saves manufacturing costs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the present invention.

[0013] Figure 2 yes Figure 1 A magnified view of a portion of the image. Detailed Implementation

[0014] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solutions of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0015] The specific technical solution of this invention is as follows: In one specific embodiment, such as Figure 1 As shown, a pedestrian warning speaker testing device includes a base 1, a first testing mechanism, a second testing mechanism, and a driving mechanism; The base 1 has a first test station 2 and a second test station 3 at its rear end. The top of the rear end of the base 1 has a mounting plate 4, and the top of the base 1 is slidably connected to a first carrier plate 5 and a second carrier plate 6. The first carrier plate 5 is used to move the speaker 100 to be tested to the first test station 2, and the second carrier plate 6 is used to move the speaker 100 to be tested to the second test station 3. The first testing mechanism is set at the first testing station 2, and the first testing mechanism includes a first lifting plate 7 and a first probe assembly 8 set at the bottom of the first lifting plate 7. The first lifting plate 7 is slidably connected to the mounting plate 4, and the bottom of the first lifting plate 7 is provided with a first rack 9. The second testing mechanism is set at the second testing station 3, and the second testing mechanism includes a second lifting plate 10 and a second probe assembly 11 set at the bottom of the second lifting plate 10. The second lifting plate 10 is slidably connected to the mounting plate 4, and a second rack 12 is provided at the bottom of the second lifting plate 10. The drive mechanism includes a motor, a first rotating shaft 13 and a gear 14. The first rotating shaft 13 is rotatably connected to the mounting plate 4. The motor is driven by the first rotating shaft 13. The gear 14 is fixedly sleeved on the first rotating shaft 13. The gear 14 is located between the first rack 9 and the second rack 12, and the gear 14 is meshed with the first rack 9 and the second rack 12 respectively.

[0016] The working principle of the pedestrian warning loudspeaker testing device of the present invention, based on the above scheme, is as follows: In use, the speaker 100 to be tested is moved to the first test station 2 by the first carrier plate 5. The first test mechanism performs electrical tests on the speaker 100 on the first carrier plate 5. During the test, the second carrier plate 6 located at the loading and unloading station can be loaded and unloaded. After the speaker 100 on the first carrier plate 5 has completed the test, the speaker 100 to be tested is moved to the second test station 3 by the second carrier plate 6. Then, the motor drives the first rotating shaft 13 to rotate clockwise by a certain angle, so that the first rotating shaft 13 drives the gear 14 to rotate. The gear 14 will mesh with the first rack 9 and the second rack 12, respectively driving the first lifting plate 7 to move upward and the second lifting plate 10 to move downward. After the first lifting plate 7 moves upward, it will drive the first probe assembly 8 to separate from the speaker 100 on the first carrier plate 5. After the second lifting plate 10 moves downward, it will drive the first probe assembly 8 to separate from the speaker 100 on the first carrier plate 5. The two-probe assembly 11 contacts the electrical connection point of the speaker 100 on the second carrier plate 6 for electrical testing. Then, the speaker 100 that has completed the test is driven back to the loading / unloading station by the first carrier plate 5. During the testing process of the second testing mechanism, the first carrier plate 5 can be loaded / unloaded upon returning to the loading / unloading station. After the speaker 100 on the second carrier plate 6 has completed the test, the speaker 100 to be tested is moved to the first testing station 2 by the first carrier plate 5 again. Then, the first rotating shaft 13 is driven by the motor to rotate counterclockwise by a certain angle, so that the second probe assembly 11 separates from the speaker 100 on the second carrier plate 6, and the first probe assembly 8 contacts the electrical connection point of the speaker 100 on the first carrier plate 5 for electrical testing. Then, the speaker 100 that has completed the test is driven back to the loading / unloading station by the second carrier plate 6, and so on.

[0017] In another specific embodiment, such as Figure 1As shown, the top of the first carrier plate 5 is provided with a first positioning groove 15, one end of which penetrates the side wall of the first carrier plate 5. The top of the second carrier plate 6 is provided with a second positioning groove 16, one end of which penetrates the side wall of the second carrier plate 6. The first test station 2 is provided with a first clamping block 17, which is slidably connected to the mounting plate 4. The first clamping block 17 is connected to a first return spring 18. One side of the bottom of the first clamping block 17 is provided with a first clamping part 19 corresponding to the first positioning groove 15, and the other side of the top of the first clamping block 17 is provided with a first force-bearing inclined surface 20. The first clamping part 19 is provided with a first elastic pad 21 for contacting the speaker 100. The second test station is provided with a second clamping block 22. The second clamping block 22 is slidably connected to the mounting plate 4, and the second clamping block 22 is connected to the second return spring 23. The bottom side of the second clamping block 22 is provided with a second clamping part 24 corresponding to the second positioning groove 16, and the top side of the second clamping block 22 is provided with a second force-bearing inclined surface 25. The second clamping part 24 is provided with a second elastic pad 26 for contacting the speaker 100. The first rotating shaft 13 is fixedly sleeved with a swing plate 27. The gear 24 is located between the swing plate 27 and the mounting plate 4. The top two sides of the swing plate 27 are respectively provided with a first pushing part 28 and a second pushing part 29. The first pushing part 28 is used to push against the first force-bearing inclined surface 20 of the first clamping block 17, and the second pushing part 29 is used to push against the second force-bearing inclined surface 25 of the second clamping block 22.

[0018] The above scheme is adopted: When the first rotating shaft 13 rotates clockwise, while driving the second probe assembly 11 downward, it will also drive the swing plate 27 to swing, so that the second pushing part 29 of the swing plate 27 contacts and engages with the second force-bearing inclined surface 25 of the second clamping block 22, pushing the second clamping block 22 to move and compress the second return spring 23, so that the second elastic pad 26 contacts the side of the speaker 100 on the second carrier plate 6, and gradually squeezes the second elastic pad 26 to deform and clamp and position the speaker 100 until the second probe assembly 11 descends to contact the electrical connection point of the speaker 100; when the first rotating shaft 13 During the counterclockwise rotation, the second clamping block 22 will reset under the elastic restoring force of the second return spring 23, thereby releasing the speaker 100. At the same time, the first probe assembly 8 will descend, and the first pushing part 28 of the swing plate 27 will contact and cooperate with the first force-bearing inclined surface 20 of the first clamping block 17, pushing the first clamping block 17 to move and compress the first return spring 18, so that the first elastic pad 21 contacts the side of the speaker 100 on the first carrier plate 5, and gradually squeezes the first elastic pad 21 to deform and clamp and position the speaker 100 until the first probe assembly 8 descends to contact the electrical connection point of the speaker 100.

[0019] In another specific embodiment, such as Figure 1and Figure 2 As shown, the mounting plate 4 is provided with a travel limit groove 30, and the bottom of the swing plate 27 is provided with a movable pin 31, one end of which extends into the travel limit groove 30.

[0020] The above solution is adopted: the displacement range of the movable pin 31 is limited by the stroke limit groove 30, thereby limiting the swing stroke of the swing plate 27.

[0021] In another specific embodiment, such as Figure 1 and Figure 2 As shown, a sleeve 33 is rotatably connected to the mounting plate 4 via a second rotating shaft 32. The second rotating shaft 32 is located at the bottom of the sleeve 33. A clearance groove 34 is provided on the top side wall of the sleeve 33. One end of the movable pin 31 away from the travel limit groove 30 extends into the clearance groove 34. A compression spring 35 is provided in the sleeve 33 between the movable pin 31 and the second rotating shaft 32.

[0022] By adopting the above solution: when the swing plate 27 swings into position, the movable pin 31 can be tightened by the compression spring 35, which helps to keep the swing plate 27 in the current position, thereby improving the clamping reliability of the clamping block on the speaker 100, and at the same time improving the electrical contact stability between the probe assembly and the speaker 100.

[0023] In another specific embodiment, the front end of the base 1 is provided with a first cylinder and a second cylinder, the first cylinder is drivenly connected to the first carrier plate 5, and the second cylinder is drivenly connected to the second carrier plate 6.

[0024] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A pedestrian warning loudspeaker testing device, comprising a base, a first testing mechanism, a second testing mechanism, and a driving mechanism, characterized in that: The base has a first test station and a second test station at its rear end. The top of the rear end of the base has a mounting plate, and the top of the base is slidably connected to a first carrier plate and a second carrier plate. The first carrier plate is used to move the speaker to be tested to the first test station, and the second carrier plate is used to move the speaker to be tested to the second test station. The first testing mechanism is set at the first testing station, and the first testing mechanism includes a first lifting plate and a first probe assembly set at the bottom of the first lifting plate. The first lifting plate is slidably connected to the mounting plate, and the bottom of the first lifting plate is provided with a first toothed rack. The second testing mechanism is set at the second testing station, and the second testing mechanism includes a second lifting plate and a second probe assembly set at the bottom of the second lifting plate. The second lifting plate is slidably connected to the mounting plate, and a second rack is provided at the bottom of the second lifting plate. The drive mechanism includes a motor, a first rotating shaft, and a gear. The first rotating shaft is rotatably connected to the mounting plate. The motor is drively connected to the first rotating shaft. The gear is fixedly sleeved on the first rotating shaft. The gear is located between the first rack and the second rack, and the gear meshes with the first rack and the second rack respectively.

2. The pedestrian warning loudspeaker testing device according to claim 1, characterized in that, The first carrier plate has a first positioning groove on its top, one end of which passes through the side wall of the first carrier plate. The second carrier plate has a second positioning groove on its top, one end of which passes through the side wall of the second carrier plate. The first testing station has a first clamping block, which is slidably connected to the mounting plate and is connected to a first return spring. One bottom side of the first clamping block has a first clamping portion corresponding to the first positioning groove, and the other top side of the first clamping block has a first force-bearing inclined surface. The first clamping portion has a first elastic pad for contacting the speaker. The second testing station has a second clamping... The first clamping block is slidably connected to the mounting plate, and the second clamping block is connected to a second return spring. A second clamping part corresponding to the second positioning groove is provided on the bottom of one side of the second clamping block, and a second force-bearing inclined surface is provided on the top of the other side of the second clamping block. The second clamping part is provided with a second elastic pad for contacting the speaker. A swing plate is fixedly sleeved on the first rotating shaft. The gear is located between the swing plate and the mounting plate. A first pushing part and a second pushing part are respectively provided on the top two sides of the swing plate. The first pushing part is used to push against the first force-bearing inclined surface of the first clamping block, and the second pushing part is used to push against the second force-bearing inclined surface of the second clamping block.

3. The pedestrian warning loudspeaker testing device according to claim 2, characterized in that, The mounting plate is provided with a travel limit groove, and the bottom of the swing plate is provided with a movable pin, one end of which extends into the travel limit groove.

4. The pedestrian warning loudspeaker testing device according to claim 3, characterized in that, A sleeve is rotatably connected to the mounting plate via a second rotating shaft. The second rotating shaft is located at the bottom of the sleeve. A clearance groove is provided on the top side wall of the sleeve. The end of the movable pin away from the travel limit groove extends into the clearance groove. A compression spring is provided in the sleeve between the movable pin and the second rotating shaft.

5. The pedestrian warning loudspeaker testing device according to claim 1, characterized in that, The base has a first cylinder and a second cylinder at its front end. The first cylinder is connected to the first carrier plate, and the second cylinder is connected to the second carrier plate.

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