Test equipment

Abstract

The utility model provides test equipment, which comprises a workbench and is provided with a test platform, the test platform comprises at least one test station, the test station is correspondingly provided with a connector, and the connector is used for being connected with a loudspeaker and transmitting a signal to the loudspeaker so as to enable a voice diaphragm of the loudspeaker to vibrate; the detection mechanism comprises a visual detection assembly and a sensing assembly, the sensing assembly is connected with the workbench through a moving module and can move relative to the test platform, the visual detection assembly is used for detecting the position and the appearance of a loudspeaker on the test platform, and the sensing assembly is used for detecting the offset state of a voice diaphragm; the control terminal is electrically connected with the workbench, the detection mechanism and the moving module. The control terminal is configured to at least control the connector to be switched between the disconnected state and the connected state, and the control terminal is further configured to judge the polarity of the loudspeaker according to the offset state of the voice diaphragm. According to the testing equipment, the testing efficiency is improved, a plurality of loudspeakers can be tested at the same time, and the specifications of the tested loudspeakers can be different.

Description

Technical Field

[0001] The present disclosure relates to the technical field of speaker detection, and in particular to a testing device. Background Art

[0002] Currently, the industry's approach to speaker polarity testing relies on the following principle: When the speaker's polarity is correct, it vibrates and outputs a sinusoidal energy wave. A microphone receives this energy wave, and the sound diaphragm vibrates to form a sinusoidal wave. The polarity tester receives this sinusoidal wave, confirming that the polarity is correct. When the speaker's polarity is reversed, the speaker vibrates and outputs a cosine wave. The polarity tester receives this cosine wave, confirming that the polarity is reversed. Because the transmission of adjacent energy waves is intermittent, the polarity tester determines whether it is a sine wave or a cosine wave based on the received complete waveform. This method is complex and time-consuming, typically taking over 30 seconds to test a single speaker. Furthermore, testing speaker polarity requires first learning with a sample, then detecting differences between the sample and the sample using a microphone. If the sample's polarity is incorrect, effective error prevention becomes impossible, preventing true 100% polarity testing of the speaker. Utility Model Content

[0003] The present disclosure provides a testing device to at least solve the above technical problems existing in the prior art.

[0004] According to the test equipment disclosed in the present invention, it includes: a workbench, which is provided with a test platform, and the test platform includes at least one test station, and the test station is correspondingly provided with a connector, and the connector is used to connect the speaker and transmit a signal to the speaker to make the sound membrane of the speaker vibrate; a detection mechanism, which is arranged above the test platform, and the detection mechanism includes a visual detection component and a sensor component, and the sensor component is connected to the workbench through a movable module and can at least move relative to the test platform along a first direction, the visual detection component is used to detect the position and shape of the speaker on the test platform, and the sensor component is used to detect the offset state of the sound membrane; and a control terminal, which is electrically connected to the workbench, the detection mechanism and the movable module; wherein the control terminal is configured to at least be able to control the connector to switch between a disconnected state and a connected state to control the vibration of the sound membrane, and the control terminal is also configured to judge the polarity of the speaker according to the offset state of the sound membrane.

[0005] In one embodiment, it further includes a driving mechanism disposed on the workbench and controlled by the control terminal. The test platform is connected to the workbench via the driving mechanism. The driving mechanism is used to drive the test platform to move along a second direction, and the second direction and the first direction meet a perpendicular condition.

[0006] In one embodiment, the test platform has a first position and a second position in the second direction. When the test platform is in the first position, the connector is in a disconnected state; when the test platform is in the second position, the connector is in a connected state.

[0007] In one embodiment, two start buttons are provided on the workbench, and the start buttons are electrically connected to the control terminal. When the two start buttons are pressed simultaneously, a driving mechanism drives the test platform to move from the first position to the second position.

[0008] In one embodiment, the sound membrane has an initial position and a deformation position. When the connector is in a disconnected state, the sound membrane is in the initial position; when the connector is in a connected state, the sound membrane is in the deformation position. The offset state of the sound membrane is the height difference between the sound membrane in the deformation position and the initial position.

[0009] In one embodiment, there are two test stations, which are arranged side by side along the first direction for simultaneously testing two speakers of the same or different specifications.

[0010] In one embodiment, the movable module includes a first-direction moving component fixed on the workbench and a third-direction moving component movably connected to the first-direction moving component, the sensing component is connected to the third-direction moving component, the third-direction moving component is used to drive the sensing component to move along the third direction, and the first-direction moving component is used to drive the third-direction moving component to drive the sensing component to move along the first direction.

[0011] In one embodiment, the test platform is made of ferromagnetic metal.

[0012] In one embodiment, the detection mechanism further includes a barcode scanner, which is disposed beside the sensor component. The barcode scanner and the sensor component are located in a containing box, and the containing box is connected to the workbench via a movable module.

[0013] In one embodiment, a display component is further included, and the display component is connected to the control terminal and is used to indicate the test results.

[0014] In the present disclosure, since the testing equipment includes a detection mechanism, and the detection mechanism includes a visual detection component and a sensor component, the visual detection component can directly grasp the position of the speaker without positioning the speaker, and cooperate with the sensor component to detect the vibration direction of the speaker's sound membrane, thereby judging whether the positive and negative polarity of the speaker is correct based on the vibration direction of the speaker's sound membrane, thereby improving the testing efficiency; since the testing platform includes at least one testing station, the connector on each testing station can be connected to a corresponding speaker, so the testing equipment can test multiple speakers at the same time and the specifications of the speakers can be different.

[0015] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present disclosure, nor are they intended to limit the scope of the present disclosure. Other features of the present disclosure will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood by reading the detailed description below with reference to the accompanying drawings, in which several embodiments of the present disclosure are shown by way of example and not limitation, wherein:

[0017] In the drawings, the same or corresponding reference numerals denote the same or corresponding parts.

[0018] Figure 1 The figure shows the overall structure of a testing device according to an exemplary embodiment of the present disclosure;

[0019] Figure 2 A schematic structural diagram of a test platform for testing equipment according to an exemplary embodiment of the present disclosure is shown;

[0020] Figure 3 A partial structural diagram of a testing device according to an exemplary embodiment of the present disclosure is shown.

[0021] Explanation of the numbers in the figure: 1. Workbench; 2. Test platform; 3. Detection mechanism; 4. Control terminal; 5. Mobile module; 6. Drive mechanism; 7. Display component; 8. Single speaker; 9. Double speakers; 11. Start button; 21. Test station; 22. Connector; 31. Visual inspection component; 32. Sensor component; 33. Barcode scanner. DETAILED DESCRIPTION

[0022] To make the purposes, features, and advantages of the present disclosure more apparent and understandable, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present disclosure without creative work shall fall within the scope of protection of the present disclosure.

[0023] The embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0024] Reference Figures 1 to 3 As shown, a testing device according to an exemplary embodiment of the present disclosure includes a workbench 1, a detection mechanism 3, and a control terminal 4. The workbench 1 is provided with a test platform 2, which includes at least one test station 21. Each test station 21 is provided with a connector 22. Connector 22 is used to connect to a speaker and transmit signals to the speaker to cause the speaker's diaphragm to vibrate. The detection mechanism 3 is disposed above the test platform 2 and includes a visual detection component 31 and a sensor component 32. The sensor component 32 is connected to the workbench 1 via a movable module 5 and is movable in at least a first direction relative to the test platform 2. The visual detection component 31 is used to detect the position and shape of the speaker on the test platform 2, and the sensor component 32 is used to detect the displacement of the diaphragm. The control terminal 4 is electrically connected to the workbench 1, the detection mechanism 3, and the movable module 5. The control terminal 4 is configured to at least control the switching of the connector 22 between a disconnected state and a connected state to control the vibration of the diaphragm. The control terminal 4 is also configured to determine the polarity of the speaker based on the displacement of the diaphragm.

[0025] In this embodiment, a test method using a 1.5V DC signal instead of the original AC signal is used. During the power-on time, the sound membrane of the speaker is moved in one direction. The connector 22 is used for signal transmission and connection. It is a key component for connecting the speaker and the audio device. It can ensure that the audio signal can be smoothly and efficiently transmitted to the speaker and then converted into sound. Since the test platform 2 includes at least one test station 21, the connector 22 on each test station 21 can be connected to a speaker, so the test equipment can test only one speaker or multiple speakers at the same time, and the specifications of the speakers can be different. The visual detection component 31 is specifically an industrial camera, and the sensor component 32 is a sensor that can detect position information, which can specifically include but not be limited to a laser sensor or a photoelectric sensor. In the embodiments shown in the present disclosure, the sensor component 32 is taken as a laser sensor as an example. When connector 22 is disconnected, the industrial camera scans the positions of all speakers placed on test platform 2, locating the speaker's diaphragm by scanning its outer shape. Control terminal 4 then controls sensor assembly 32, causing it to move along a first direction above the speaker's diaphragm based on the speaker's position information detected by the industrial camera, identifying the diaphragm's offset direction. The first direction is the X-axis in the three-dimensional coordinate system, i.e., the length of workbench 1. Test results for the same speaker typically result in two outcomes: upward or downward floating. It is understood that for some speaker types, an upward floating diaphragm indicates correct polarity, while a downward floating diaphragm indicates unacceptable polarity. Conversely, for other speaker types, an upward floating diaphragm indicates unacceptable polarity, while a downward floating diaphragm indicates correct polarity. Control terminal 4 can set and save test methods based on different products. Specifically, the PLC automatically performs testing and judgment. The control terminal 4 may include an operating machine and an industrial computer arranged on the workbench 1. The operating machine can perform overall control and monitoring, data processing and recording, communication and interaction, and security protection. The industrial computer can display and store data, making it convenient for operators to observe test results in real time.

[0026] In summary, since the test equipment includes a detection mechanism 3, and the detection mechanism 3 includes a visual detection component 31 and a sensor component 32, the visual detection component 31 can directly grasp the position of the speaker without positioning the speaker, and cooperate with the sensor component 32 to detect the vibration direction of the speaker's sound membrane, thereby judging whether the positive and negative polarity of the speaker is correct based on the direction of the speaker's sound membrane vibration; since the test platform 2 includes at least one test station 21, the connector 22 on each test station 21 can be connected to a corresponding speaker, so the test equipment can test multiple speakers at the same time and the specifications of the speakers can be different. The test equipment disclosed in the present invention reduces the time for performing a speaker polarity test from 30s to 6s, greatly improving the test efficiency and saving time and manpower.

[0027] In one embodiment, the testing device also includes a driving mechanism 6 arranged on the workbench 1 and controlled by the control terminal 4. The test platform 2 is connected to the workbench 1 through the driving mechanism 6. The driving mechanism 6 is used to drive the test platform 2 to move along a second direction, and the second direction and the first direction meet the vertical condition.

[0028] Furthermore, in one embodiment, the test platform 2 has a first position and a second position in the second direction. When the test platform 2 is in the first position, the connector 22 is in a disconnected state; when the test platform 2 is in the second position, the connector 22 is in a connected state.

[0029] In this embodiment, the second direction is the Y-axis direction in the three-dimensional coordinate system, i.e., the width direction of the workbench 1. When the test platform 2 is in the first position, the operating platform is close to the operator, making it easy for the operator to place the speaker on the test platform 2. At this time, the connector 22 is not yet connected to the speaker, or the connector 22 is connected to the speaker but is still not powered, and the speaker does not vibrate. After the connector 22 is connected to the speaker, the test platform 2 moves to a second position away from the operator. When the test platform 2 moves to the second position, the sensor component 32 performs a first detection of the diaphragm position. After the first detection is completed, the connector 22 is powered to cause the speaker to vibrate, and then the sensor component 32 performs a second detection of the diaphragm position.

[0030] In one embodiment, two start buttons 11 are provided on the workbench 1, and the start buttons 11 are electrically connected to the control terminal 4. When the two start buttons 11 are pressed simultaneously, the drive mechanism 6 drives the test platform 2 to move from the first position to the second position.

[0031] In this embodiment, the test platform 2 starts and begins the polarity test only when both start buttons 11 are pressed simultaneously. When either of the two start buttons 11 is pressed alone, the test platform 2 does not start. This improves the safety of the device and prevents inaccurate test results and time wasted due to accidental touches.

[0032] In one embodiment, the sound membrane has an initial position and a deformation position. When the connector 22 is in a disconnected state, the sound membrane is in the initial position; when the connector 22 is in a connected state, the sound membrane is in the deformation position. The offset state of the sound membrane is the height difference between the sound membrane in the deformation position and the initial position.

[0033] In this embodiment, when the test equipment is running, the operator first places the speaker on the test station 21, manually plugs the speaker into the connector 22, and presses the two start buttons 11. The visual detection component 31 will first take a picture of the position of the sound membrane. After taking the picture, the test platform 2 moves from the first position to the second position along the second direction. When the test platform 2 reaches the second position, the sensor component 32 will locate the sound membrane according to the position of the sound membrane obtained by the visual detection component 31 and move it above the sound membrane, and perform the first position detection on the sound membrane. After the first detection is completed, the connector 22 is powered on for about 0.05s, and the sensor component 32 performs a second position detection on the sound membrane. About 0.05s after the second detection is completed, the connector 22 is disconnected and the speaker is powered off. After another 0.05s, the control terminal 4 will automatically calculate the height difference between the two position detections of the sensor component 32. There are two test results: if the difference between the deformation position measured in the second position detection and the initial position measured in the first position detection is greater than zero, or if the difference between the deformation position measured in the second position detection and the initial position measured in the first position detection is less than zero, these two cases correspond to the diaphragm floating upward or floating downward, respectively. It is understandable that for some speaker types, upward floating indicates correct polarity, while downward floating indicates incorrect polarity; while for other speaker types, upward floating indicates incorrect polarity, while downward floating indicates correct polarity.

[0034] Reference Figure 2 As shown, in one embodiment, there are two test stations 21 , which are arranged side by side along the first direction for simultaneously testing two speakers of the same or different specifications.

[0035] In this embodiment, taking the testing of a single speaker 8 and a dual speaker 9 on two test stations 21 as an example, the single speaker 8 and the dual speaker 9 are only plugged into the connector 22 once, and the dual speaker 9 can switch the positive and negative poles of the left and right terminal voltages internally, that is, the positive and negative poles output by the device to the dual speaker 9 can be set, which can be set to positive and negative or negative and positive. During the actual test, the single speaker 8 and the dual speaker 9 are first placed on the two test stations 21 respectively, and the sound membrane is facing upward, but there is no need to position them. Then the two speakers are plugged into the connector 22 respectively, and the two start buttons 11 are pressed. The visual detection component 31 will first take a picture of the position of the sound membrane. After taking the picture, the test platform 2 moves from the first position to the second position along the second direction. When the test platform 2 reaches the second position, the sensor component 32 will locate the sound membrane according to the sound membrane position obtained by the visual detection component 31 and move it above the sound membrane, and perform the first position detection on the sound membrane. After the first detection is completed, the connector 22 is powered on for about 0.05s, and the sensor component 32 performs a second position detection on the sound membrane. About 0.05s after the second detection is completed, the connector 22 is disconnected and the speaker is powered off. After another 0.05s, the control terminal 4 will automatically calculate the height difference between the two position detections of the sensor component 32.

[0036] In one embodiment, the movable module 5 includes a first direction moving component fixed on the workbench 1 and a third direction moving component movably connected to the first direction moving component. The sensing component 32 is connected to the third direction moving component. The third direction moving component is used to drive the sensing component 32 to move along the third direction. The first direction moving component is used to drive the third direction moving component to drive the sensing component 32 to move along the first direction.

[0037] In one embodiment, the test platform 2 is made of ferromagnetic metal.

[0038] In this embodiment, the test platform 2 can be specifically made of ferromagnetic metals such as iron, cobalt, and nickel, which have good magnetic properties. Since the speaker has its own magnet, when the speaker is placed on the test platform 2, it can be adsorbed on the test platform 2 to ensure the stability of the test process.

[0039] In one embodiment, the detection mechanism 3 further includes a barcode scanner 33, which is disposed next to the sensor assembly 32. The barcode scanner assembly and the sensor assembly 32 are located in a storage box, which is connected to the workbench 1 via a mobile module 5. The barcode scanner 33 is used to scan a QR code to digitally trace the speaker.

[0040] In one embodiment, the test device further includes a display component 7 , which is connected to the control terminal 4 and is used to indicate the test result.

[0041] In this embodiment, the display component 7 can specifically be an indicator light, which can display at least red and green lights. When the indicator light displays red, it can represent that the polarity test result is unqualified, and when the indicator light displays green, it can represent that the polarity test result is correct.

[0042] In the description of the present disclosure, it should be understood that the orientation or positional relationship indicated by the directional words is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present disclosure and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present disclosure; the directional words "inside" and "outside" refer to the inside and outside relative to the outline of each component itself.

[0043] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between one or more components or features shown in the figures and other components or features. It should be understood that spatially relative terms include not only the orientation of the components as described in the figures, but also different orientations during use or operation. For example, if the components in the drawings are inverted as a whole, the situation where the components are "above other components or features" or "above other components or features" will include the situation where the components are "below other components or structures" or "below other components or structures". Thus, the exemplary term "above" may include both the orientations "above" and "below". In addition, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this document is intended to include all of these situations.

[0044] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, parts, components and / or combinations thereof.

[0045] It should be noted that the terms "first," "second," and the like in the specification and claims of the present disclosure and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present disclosure described herein can be implemented in an order other than that illustrated or described herein.

[0046] The present disclosure has been described through the above-described embodiments, but it should be understood that the above-described embodiments are for illustrative and illustrative purposes only and are not intended to limit the present disclosure to the described embodiments. In addition, it will be understood by those skilled in the art that the present disclosure is not limited to the above-described embodiments, and that various variations and modifications may be made based on the teachings of the present disclosure, all of which fall within the scope of protection claimed by the present disclosure. The scope of protection of the present disclosure is defined by the appended claims and their equivalents.

Claims

1. A testing device, characterized in that: include: A workbench (1) is provided with a test platform (2), wherein the test platform (2) includes at least one test station (21), and each test station (21) is provided with a connector (22) corresponding to the test station (21), and the connector (22) is used to connect to a loudspeaker and transmit a signal to the loudspeaker so as to vibrate a sound membrane of the loudspeaker; A detection mechanism (3) is arranged above the test platform (2), and the detection mechanism (3) includes a visual detection component (31) and a sensor component (32). The sensor component (32) is connected to the workbench (1) through a moving module (5) and is at least movable along a first direction relative to the test platform (2). The visual detection component (31) is used to detect the position and shape of the speaker on the test platform (2), and the sensor component (32) is used to detect the displacement state of the sound membrane. as well as A control terminal (4) is electrically connected to the workbench (1), the detection mechanism (3) and the mobile module (5); The control terminal (4) is configured to at least control the connector (22) to switch between a disconnected state and a connected state to control the vibration of the sound membrane, and the control terminal (4) is also configured to determine the polarity of the speaker based on the offset state of the sound membrane.

2. The testing device according to claim 1, characterized in that The invention also includes a driving mechanism (6) arranged on the workbench (1) and controlled by the control terminal (4); the test platform (2) is connected to the workbench (1) via the driving mechanism (6); the driving mechanism (6) is used to drive the test platform (2) to move along a second direction, and the second direction and the first direction meet a perpendicular condition.

3. The testing device according to claim 2, characterized in that The test platform (2) has a first position and a second position in the second direction, and when the test platform (2) is in the first position, the connector (22) is in a disconnected state; When the test platform (2) is in the second position, the connector (22) is in a connected state.

4. The testing device according to claim 3, characterized in that Two start buttons (11) are provided on the workbench (1), the start buttons (11) are electrically connected to the control terminal (4), and when the two start buttons (11) are pressed simultaneously, a driving mechanism (6) drives the test platform (2) to move from a first position to a second position.

5. The testing device according to claim 1, characterized in that The sound membrane has an initial position and a deformation position. When the connector (22) is in a disconnected state, the sound membrane is in the initial position; when the connector (22) is in a connected state, the sound membrane is in the deformation position. The offset state of the sound membrane is the height difference between the sound membrane at the deformation position and the initial position.

6. The testing device according to any one of claims 1 to 5, characterized in that: The number of the test stations (21) is two, and the two test stations (21) are arranged side by side along the first direction, and are used to simultaneously test two speakers of the same or different specifications.

7. The testing device according to claim 1, characterized in that The movable module (5) comprises a first-direction movable component fixed on the workbench (1) and a third-direction movable component movably connected to the first-direction movable component, the sensing component (32) is connected to the third-direction movable component, the third-direction movable component is used to drive the sensing component (32) to move along the third direction, and the first-direction movable component is used to drive the third-direction movable component to drive the sensing component (32) to move along the first direction.

8. The testing device according to claim 1, wherein: The test platform (2) is made of ferromagnetic metal.

9. The testing device according to claim 1, characterized in that The detection mechanism (3) further comprises a code scanner (33), the code scanner (33) being arranged beside the sensor assembly (32), the code scanner (33) and the sensor assembly (32) being located in a receiving box, and the receiving box being connected to the workbench (1) via a movable module (5).

10. The testing device according to claim 1, wherein: It also includes a display component (7), which is connected to the control terminal (4) and is used to indicate the test results.

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