A test tool for automatic test device of walkie-talkie

Abstract

The invention discloses a test fixture of an automatic test device for an intercom, comprising a radio frequency connector mechanism, an ejector mechanism, a test box with a fixture slot, and a driving circuit board installed in the test box, wherein the test box is provided with a fixture slot, and the test box is provided with a plurality of interfaces, each of which includes a power interface, a communication interface, and a connection interface; the radio frequency connector mechanism comprises a radio frequency connector, and the radio frequency connector is movably installed on the test box; the ejector mechanism comprises a plurality of ejectors, each of which is installed on the test box, and one end of each ejector can be extended into the fixture slot, wherein two ejectors correspond to a communication connection point and a power connection point respectively; the communication connection point is connected to the communication end of the driving circuit board, the power interface and the power connection point are respectively connected to the power end of the driving circuit board, and the communication interface is connected to the communication end of the driving circuit board. The radio frequency connector and the radio frequency interface on the intercom to be tested are connected firmly and in good contact, thereby ensuring stable signal transmission.

Description

Technical Field

[0001] The invention relates to the technical field of intercoms, and more particularly to a test fixture for an automatic test device for an intercom. Background Art

[0002] The walkie-talkie needs to be tested before leaving the factory, and the traditional test operation is: turn on the comprehensive tester and the power switch, connect the RF interface of the comprehensive tester to the antenna interface of the walkie-talkie to be tested through the adapter feeder, and then connect the power interface of the walkie-talkie to be tested, connect the speaker output interface of the walkie-talkie to be tested, and connect the microphone connection interface of the walkie-talkie to be tested. After the manual connection is completed, perform the transmission test, and click the PTT button on the display interface of the comprehensive tester to test the test walkie-talkie. The test content of the transmission part includes a variety of indicators, such as transmission frequency deviation, transmission power , transmit modulation, transmit modulation sensitivity and transmit signal-to-noise ratio, etc., and check whether the indicators are qualified on the display interface of the comprehensive tester; after the test content of the transmit part is completed, click the RX button on the display interface of the comprehensive tester to switch the test walkie-talkie to the receive part. The test content of the receive part includes a variety of indicators, such as receive sensitivity, SQL, receive speaker output, receive distortion, receive signal-to-noise ratio and 5, 9 level opening and closing sensitivity, etc.; then after the test is completed, unplug the connection between all test walkie-talkies and the comprehensive tester, and then repeat the above operation for the next one.

[0003] Based on this, someone invented a test fixture that automatically connects and disconnects the walkie-talkie to be tested and the integrated tester without manual operation. However, the RF connector in this test fixture and the RF interface in the walkie-talkie to be tested use metal contact connection. This connection method is prone to poor contact and poor signal transmission, which can easily cause inaccurate testing during testing.

[0004] In view of this, the inventor conducted in-depth research on this basis, and thus came up with this case. Summary of the invention

[0005] The purpose of the present invention is to provide a test fixture for an automatic test device of a walkie-talkie which can maintain a stable radio frequency signal output.

[0006] To achieve the above object, the solution of the present invention is:

[0007] A test fixture for an automatic test device for an intercom, comprising a radio frequency connector mechanism, a plurality of ejectors, a test box provided with a fixture slot, and a driving circuit board installed in the test box; the test box is provided with a plurality of interfaces, each of which comprises a power interface, a communication interface, and a connection interface; the radio frequency connector mechanism comprises a radio frequency connector, and the radio frequency connector is installed on the test box in a manner close to or away from the fixture slot; each of the ejectors is installed on the test box, and one end of each of the ejectors can extend out of the fixture slot, and two of the ejectors in each of the ejectors correspond to a communication connection point and a power connection point, respectively; the communication connection point is connected to a communication end of the driving circuit board, the power interface and the power connection point are respectively connected to the power end of the driving circuit board, and the communication interface is connected to the communication end of the driving circuit board.

[0008] The RF connector mechanism further includes a moving device, which includes a first driving member and a driving source. The first driving member is installed on the test box, and a transmission component of the first driving member is connected to the RF connector.

[0009] The first driving member is a first air cylinder, the driving source is an air source, and the transmission component of the first driving member is a first piston rod of the first air cylinder; or, the first driving member is a first hydraulic cylinder, the driving source is a hydraulic source, and the transmission component of the first driving member is the first piston rod of the first hydraulic cylinder; or, the first driving member is a first electric rod, the driving source is a power source, and the transmission component of the first driving member is a telescopic rod of the first electric rod; wherein, the first driving member is connected to the driving source via a first solenoid valve, and the driving end of the first solenoid valve is connected to the signal output end of the driving circuit board.

[0010] The test fixture also includes a positioning mechanism, which includes a lifting device and a plurality of positioning pins arranged up and down. The lifting device is installed on the test box, and each positioning pin moves up and down through the lifting device, and the lower end of each positioning pin faces the fixture slot.

[0011] A test frame is mounted on the test box, the lifting device is installed on the test frame, a movable plate that can slide up and down is installed on the test frame, the upper end of each positioning pin is connected to the movable plate, and the movable plate moves up and down through the lifting device.

[0012] The lifting device comprises a second driving member and a driving source, the second driving member is mounted on the test box, and a transmission component of the second driving member is connected to each of the positioning pins.

[0013] The second driving member is a second air cylinder, the driving source is an air source, and the transmission component of the second driving member is the first piston rod of the second air cylinder; or, the second driving member is a second hydraulic cylinder, the driving source is a hydraulic source, and the transmission component of the second driving member is the first piston rod of the second hydraulic cylinder; or, the second driving member is a second electric rod, the driving source is a power source, and the transmission component of the second driving member is a telescopic rod of the second electric rod; wherein, the first driving member is connected to the driving source via a first solenoid valve, and the driving end of the first solenoid valve is connected to the signal output end of the driving circuit board.

[0014] The test box is equipped with an elastic device, which includes a telescopic spring, a support rod and a lifting plate. There are at least two support rods, the lower ends of the two support rods are respectively connected to the upper side of the test box, the upper ends of the support rods are commonly connected to the lifting plate, and the telescopic spring is sleeved on each support rod, and the two ends of each telescopic spring are respectively tensioned between the lifting plate and the test box; wherein the tooling slot is arranged on the lifting plate, and the lifting plate is provided with through holes corresponding to each ejector pin.

[0015] The test box is provided with guide rods, which are arranged up and down. The movable plate is sleeved on the guide rods, and the transmission component of the second driving member is connected with the movable plate.

[0016] At least one manual switch is installed on the test box, and the manual switch is electrically connected to the signal input terminal of the driving circuit board.

[0017] After adopting the above structure, the present invention has the following beneficial effects:

[0018] 1. Place the intercom to be tested in the tooling slot, and each ejector pin is connected to the corresponding point of the intercom to be tested. Since the RF connector is movable, the RF connector is moved to connect with the RF interface on the intercom to be tested. The connection between the two is firm and the contact area is large, so the contact is good, which ensures stable RF signal transmission and accurate test.

[0019] 2. The positioning mechanism and the elastic device are set up, and each positioning pin moves downward or upward together under the drive of the lifting device. When each positioning pin moves downward, the lower end of each positioning pin continues to press downward against the intercom to be tested, and the intercom to be tested moves downward, so that each ejector pin extends into the tooling slot and contacts and connects with the corresponding point of the intercom to be tested; when each positioning pin moves upward, the telescopic spring is reset, so that the upper end of each ejector pin is located between the lifting plate and the upper side of the test box, and each ejector pin is hidden. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a structural schematic diagram of the test tooling in the present invention;

[0021] Figure 2 It is a left side view of the test tool in the present invention;

[0022] Figure 3 It is a right side view of the test tool in the present invention;

[0023] Figure 4 It is a rear view of the test tool in the present invention;

[0024] Figure 5 It is a structural schematic diagram of the test box when it is opened in the present invention;

[0025] Figure 6 A schematic diagram of the connection between the radio frequency connector and the radio frequency interface in the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of the elastic device in the present invention;

[0027] Figure 8 A circuit block diagram of a test system using the present invention;

[0028] Fig. 9 It is a connection diagram of the driving circuit board in the present invention.

[0029] In the figure:

[0030] 1-Test tooling; 2-Test box;

[0031] 21-power interface; 22-USB data interface;

[0032] 24-test frame; 25-guide rod;

[0033] 26-communication connection point; 27-power connection point;

[0034] 28- speaker interface; 281- speaker output point;

[0035] 29-hand microphone interface; 291-MIC modulation signal point;

[0036] 3- tooling slot; 41- RF connector;

[0037] 5-driving circuit board; 61-first cylinder body;

[0038] 62-first piston rod; 621-first transmission block;

[0039] 622-second transmission block; 63-first solenoid valve;

[0040] 7-elastic device; 71-telescopic spring;

[0041] 72-support rod; 73-lifting plate;

[0042] 81-positioning needle; 82-second cylinder body;

[0043] 83-second piston rod; 84-moving plate;

[0044] 85-Second solenoid valve. DETAILED DESCRIPTION

[0045] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0046] An automatic test device for an intercom, such as Figure 1-9 As shown, the test fixture 1 includes a test box 2, a radio frequency connector mechanism and an ejector mechanism. The test box 2 is provided with a fixture slot 3, which is used to place the intercom to be tested, and the test box 2 is provided with a power interface 21, a communication interface and a connection interface on the periphery; the radio frequency connector mechanism includes a radio frequency connector 41, which is installed on the test box 2 in a manner that it can be close to or away from the fixture slot 3; the ejector mechanism includes a plurality of ejectors, each of which is arranged up and down and is installed on the test box 2, and the upper end of each ejector can be extended into the fixture slot 3, wherein two ejectors correspond to the communication connection point 26 and the power connection point 27 respectively, and the connection interface is equipped with an ejector, and the connection interface is connected to the corresponding ejector. A driving circuit board 5 is provided in the test box 2, the communication connection point 22 is connected to the communication end of the driving circuit board, and the power interface 21 and the power connection point 27 are respectively connected to the power end of the driving circuit board.

[0047] For the convenience of description, the state of the present invention when it is normally used is taken as the reference state of the present invention.

[0048] Specifically, if Figure 1-7As shown, the above-mentioned moving device is a first cylinder device, which includes a first cylinder. The first cylinder body 61 of the first cylinder is fixedly installed on the rear side of the upper side of the test box 2, and the first piston rod 62 of the first cylinder is located on the front side of the first cylinder body 61. The free end of the first piston rod 62 is transmission-connected with the RF connector 41, so that the RF connector 41 is driven to approach or move away from the tooling slot 3 through the extension and retraction of the first piston rod 62. Preferably, the free end of the first piston rod 62 is transmission-connected to the first transmission block 621, and the first transmission block 621 is L-shaped. A second transmission block 622 is fixedly installed on the left side of the first transmission block 621, and the second transmission block 622 is L-shaped. The RF connector 41 is fixedly installed in the second transmission block 622, and the RF connector 41 is arranged along the front-to-back direction. The RF connector 41 is located at the part of the second transmission block 622 facing the tooling groove 3. The mounting structure between the RF connector 41 and the second transmission block 622 is an existing conventional structure. For example, a mounting hole is opened on the second transmission block 622, and the RF connector 41 is tightly inserted into the mounting hole.

[0049] In this embodiment, the moving device can also replace the cylinder device with a conventional hydraulic device or electric device, that is, replace the first cylinder with a first hydraulic cylinder or a first electric rod, and use a hydraulic source or a power source for driving. Moreover, the moving device can also be a screw device, a slide module, etc., and is not limited to the above-mentioned devices.

[0050] In this embodiment, the second transmission block 622 is made of aluminum material.

[0051] like Figure 1-4 As shown and Figure 7 As shown, an elastic device 7 is installed on the test box 2, and the elastic device 7 includes a telescopic spring 71, a support rod 72 and a lifting plate 73. There are at least two support rods 72, and each support rod 72 is equipped with a telescopic spring 71. In this embodiment, four support rods 72 are used as an example for explanation; the lower end of each support rod 72 is fixedly mounted on the upper side of the test box 2, and the upper end of each support rod 72 is fixedly mounted on the lifting plate 73. The lifting plate 73 is a square plate, and each support rod 72 is arranged at the four corners of the lifting plate 73. Each telescopic spring 71 is arranged up and down, and each telescopic spring 71 is respectively sleeved in the corresponding support rod 72, and the two ends of each telescopic spring are respectively tensioned between the lower side of the lifting plate 73 and the upper side of the test box 2, and the above-mentioned tooling groove 3 is arranged on the upper side of the lifting plate 73 so as to be indirectly mounted on the test box 1, and the lifting plate 73 is respectively provided with through holes corresponding to the positions of each ejector pin. Each ejector pin is fixedly mounted on the test box 2 , and the upper end of each ejector pin extends out of the upper side of the test box 2 , while the lower end of each ejector pin is located inside the test box 2 .

[0052] Furthermore, in this embodiment, the lifting plate 73 may also be in other shapes, such as a circular, diamond or triangular plate.

[0053] Furthermore, each ejector pin is fixed on the upper surface of the test box 2 using a conventional mounting structure. For example, a plurality of sockets are provided on the upper side of the test box 2, and each socket is one-to-one with each ejector pin, and each ejector pin is tightly inserted into the corresponding socket.

[0054] When a walkie-talkie to be tested is placed in the tooling slot 3, each telescopic spring 71 is gradually compressed under the action of external force, so that the lifting plate 73 moves downward, so that the lifting plate 73 moves downward relative to each ejector pin, so that the upper end of each ejector pin extends into the tooling slot 3 through its own through hole, so as to contact and connect with the corresponding end of the walkie-talkie to be tested; when the external force is removed, each telescopic spring 71 is reset, so that the lifting plate 73 moves upward relative to the test box 2, so that the upper end of each ejector pin is located between the lifting plate 73 and the test box 2, and no longer contacts the walkie-talkie to be tested.

[0055] Furthermore, the test fixture 1 also includes a positioning mechanism, which includes a lifting device and a plurality of positioning pins 81 , each positioning pin 81 is arranged up and down, and each positioning pin 81 is installed on the test box 2 through the lifting device, and each positioning pin 81 faces the fixture slot 3 .

[0056] The lifting device mentioned above is a second cylinder device, which includes a second cylinder, a test frame 24 is mounted on the test box 2, the second cylinder is arranged up and down, and the second cylinder body 82 of the second cylinder is arranged up and down, and the second cylinder body 82 is fixedly installed on the test frame 24, the second piston rod 83 of the second cylinder is located at the lower side of the second cylinder body 82, and each positioning pin 81 is connected to the free end of the second piston rod 83, so that each positioning pin 81 can be moved up or down by the extension and contraction of the second piston rod 83. In this embodiment, the free end of the second piston rod 81 is transmission-connected with a moving plate 84, the upper end of each positioning pin 81 is fixedly installed on the moving plate 84, and the lower end of each positioning pin 81 is respectively opposite to the tooling slot 3.

[0057] Preferably, a guide rod 25 is installed on the test box 2, the guide rod 25 is arranged up and down, and the upper end of the guide rod 25 is fixedly connected to the test frame 24, the lower end of the guide rod 25 is fixedly connected to the test box 2, and the guide rod 25 is located at the rear side of the tooling slot 3 so as not to hinder the placement or removal of the intercom to be tested, and the movable plate 84 is sleeved in the guide rod 25 to play a guiding role in the process of the movable plate 84 being raised and lowered, so as to avoid the displacement of each positioning pin 81; in this embodiment, there are two guide rods 25, the two guide rods 25 are arranged in sequence in the left and right directions, and the movable plate 84 is sleeved on the two guide rods 25.

[0058] When the intercom to be tested is placed in the tooling slot 3, the extension of the second piston rod 83 drives the moving plate 84 to slide downward along the guide rod 25, thereby driving each positioning pin 81 to slide downward and abut against the intercom to be tested. Subsequently, each intercom to be tested moves downward together with the lifting plate 73 under the downward pressure of each positioning pin 81, until each ejector pin extends into the tooling slot and contacts and connects with the corresponding end of the intercom to be tested; in this way, on the one hand, each positioning pin 81 plays the role of applying external force to the lifting plate 71, and on the other hand, each positioning pin 81 plays the role of positioning the intercom to be tested. After the test is completed, the second piston rod 83 retracts, and the moving plate 84 slides upward along the guide rod 25, thereby causing each positioning pin 81 to slide upward, and each telescopic spring 71 in the elastic device 7 is reset, so that the intercom to be tested moves upward with the lifting plate 73, so that each ejector pin is separated from the corresponding end of the intercom to be tested.

[0059] In the present invention, the above-mentioned first cylinder is connected to the air source through the first solenoid valve 63, and the above-mentioned second cylinder is connected to the air source through the second solenoid valve 85. The driving end of the first solenoid valve 63 is the driving end of the moving device, and the driving end of the second solenoid valve 85 is the driving end of the lifting device.

[0060] Further, Figure 5 As shown in Figures 1 and 10, the test box 2 is a square box, the driving circuit board 5 is fixedly installed inside the test box 2, the above-mentioned connection interface is the speaker interface 28, the communication interface is the USB data interface 22, the USB data interface 22 is arranged on the left side of the test box 2, the speaker interface 28 is arranged on the back side of the test box 2, and the above-mentioned power interface 21 is arranged on the back side of the test box 2, wherein the arrangement position of each interface is arranged according to the actual test situation, and is not limited to the above-mentioned position. Preferably, there are multiple connection interfaces so as to be used as preset interfaces, each connection interface is respectively equipped with a pin, and each preset interface is respectively connected to the corresponding pin through a wire. In this embodiment, there is one preset interface, and the preset interface is a microphone interface 29 as an example for explanation; in addition, according to different test items and walkie-talkie types, the type and quantity of the required preset interfaces are also different, and they are specifically arranged according to the actual test situation.

[0061] Among them, the top pin equipped with the speaker interface 28 corresponds to the speaker output point 281, and the top pin equipped with the hand microphone interface 29 corresponds to the MIC modulation signal point 291. The specific connection relationship between each pin and each interface and the driving circuit board 5 is as follows: the power interface 21 and the power connection point 27 are respectively connected to the power end of the driving circuit board 5 through wires, the communication connection point 26 is respectively connected to the TXD1 end and the RXD1 end of the driving circuit board 5 through wires, the speaker output point 281 is connected to the speaker interface 28 through a wire, the MIC modulation signal point 291 is connected to the hand microphone interface 29 through a wire, and the USB data interface 22 is respectively connected to the communication end (i.e., the USB end) of the driving circuit board 5, and the OUT1 end and OUT2 end of the driving circuit board 5 are respectively connected to the driving end of the first solenoid valve 63 and the driving end of the second solenoid valve 85.

[0062] It should be noted that, when the intercom to be tested is placed in the tooling slot 3, each ejector pin abuts against the corresponding end of the intercom to be tested, and the corresponding end is different according to the different functions of each ejector pin. For example, the speaker output point 281 abuts against the speaker point of the intercom to be tested, and the power connection point 27 abuts against the power point of the intercom to be tested.

[0063] Furthermore, at least one manual switch is installed on the test box 1. In the present embodiment, there are two manual switches, which correspond to a start switch and a stop switch, respectively. The start switch and the stop switch are connected to the signal input end of the driving circuit board 5, respectively, so as to control the power on of the first solenoid valve 63 and the second solenoid valve 85 through the start switch, that is, to control the action of the first cylinder and the second cylinder, and to control the power off of the first solenoid valve 63 and the second solenoid valve 85 through the stop switch, that is, to control the first cylinder and the second cylinder to stop working. In addition, the function of the manual switch can be set according to the actual situation, and is not limited to the start switch and the stop switch mentioned above.

[0064] In the present invention, the specific working process of the test fixture is as follows: the intercom to be tested is placed in the fixture slot 3, and then the driving circuit board 5 controls the second electromagnetic valve 85 to be energized, so that the second piston rod 83 of the second cylinder is extended, and the extension of the second piston rod 83 drives the moving plate 84 to move downward, so that each positioning pin 81 moves downward, and in the process of the positioning pins 81 moving downward together, the lifting plate 73 is pushed to move downward, so that the upper ends of each ejector pin are respectively abutted against the corresponding ends of the intercom to be tested, and then the driving circuit board 5 controls the first electromagnetic valve 63 to be energized, so that the first piston rod 63 of the first cylinder is extended forward, and the extension of the first piston rod 63 drives the RF connector 41 to be moved one by one. Gradually approach the RF interface of the intercom to be tested, so that the RF connector 41 is connected with the RF interface, and then the intercom to be tested is tested. After the test is completed, the driving circuit board 5 controls the first solenoid valve 63 to cut off the power, so that the first piston rod 62 retracts, and then the RF connector 41 and the RF interface of the test intercom are separated from each other, and then the second solenoid valve 85 is controlled to cut off the power to make the second piston rod 83 retract, thereby driving the moving plate 84 to move upward, and then each positioning pin 81 leaves the test intercom. In this process, each telescopic spring is reset, so that each ejector pin is separated from the test intercom, and then the test intercom is removed and the intercom to be tested is put back.

[0065] Furthermore, if Fig. 9 As shown, the above-mentioned driving circuit board 5 is a circuit board integrated with a single-chip microcomputer, and the RXD2 end and TXD2 end of the above-mentioned driving circuit board 5 jointly form a USB end, that is, the USB data interface 22 is respectively connected to the RXD2 end and the TXD2 end of the driving circuit board 5. Preferably, a control device is installed on the test fixture 1 to add control in the later stage, and OUT3 of the driving circuit board 5 is connected to the driving end of the control device, wherein the output end of the driving circuit 5 is selected according to the number of driving ends of the control device, that is, from OUT3 to OUTn, n is a positive integer greater than or equal to 3. In addition, at least one control switch can also be installed on the test box 2, and the control switch is a manual switch, such as the above-mentioned start switch, stop switch, etc. The manual switch is connected to the input end IN1 of the driving circuit board 5, wherein the input end of the driving circuit board 5 is allocated according to the number of manual switches.

[0066] like Figure 8-9 As shown, a test system is also included, which includes a computer host and an integrated tester. The USB serial port communication end of the computer host is communicatively connected to the above-mentioned USB data interface 22, the communication end of the computer host (i.e., the GPIB end) and the communication end of the integrated tester (i.e., the GPIB interface) are communicatively connected, and the above-mentioned RF connector 41 is connected to the RF end of the integrated tester, the above-mentioned speaker interface 28 is connected to the speaker end of the integrated tester, and the microphone interface 29 is connected to the audio signal end of the integrated tester.

[0067] In this embodiment, a conventional digital power supply is used to provide working power to the test fixture 1 and the driving circuit board 5, that is, the power input terminal of the driving circuit board is connected to the power output terminal of the digital power supply.

[0068] Before testing, first connect the USB serial port communication end of the computer host to the USB data interface 22, connect the GPIB end of the comprehensive tester to the GPIB interface of the computer host through a data cable, and then connect the output power line of the digital power supply to the power interface 21, the speaker end of the comprehensive tester to the speaker interface 28 through an audio cable, and the hand microphone end of the comprehensive tester to the hand microphone interface 29 through an audio cable to connect the comprehensive tester and the test tool 1; then put the intercom to be tested into the tooling slot for testing.

[0069] The specific test process is as follows: the host computer first outputs a drive signal to the drive circuit board 5, and the drive circuit board 5 controls the second solenoid valve 85 to operate, so that each positioning pin 81 is pressed against the intercom to be tested. At this time, each ejector pin is inserted into the tooling slot and connected to the corresponding end of the intercom to be tested. Then the drive circuit board 5 controls the first solenoid valve 63 to operate, so that the RF connector 41 moves forward under the action of the moving device, so that the RF connector 41 is closely connected with the RF interface of the intercom to be tested. After the connection is completed, it enters the automatic test state; during the automatic test process, the host computer transmits the data of each technical specification to the drive circuit board 5 through the USB serial communication terminal, and the host computer reads the data through the GPIB interface. The real-time dynamic data of each technical specification in the comprehensive tester, when the technical specifications of a test item meet the specified requirements, the computer host reports a qualified result and automatically jumps to the next test item for debugging until all test items are completed. After the test of each test item is completed, the computer host automatically jumps out the test result and outputs a closing signal to the drive circuit board 5 to cut off the power of the first solenoid valve 63, so that the RF connector 41 leaves the RF interface of the test intercom, and then the second solenoid valve 85 is cut off, so that each positioning pin 81 moves upward, so that each ejector pin is separated from the corresponding end of the test intercom, and then the test intercom that has completed the test is removed and the next intercom to be tested is placed.

[0070] It should be noted that the test items include transmit frequency deviation, transmit power, transmit modulation current, receive sensitivity and / or receive SQ, etc. Each test item is set according to the actual model and frequency band of the walkie-talkie to be tested and the actual test requirements, but is not limited to the above-listed items. The specific test items are adjusted and modified according to the actual situation.

[0071] Further, the test system also includes multiple isolators and multiple comprehensive testers, each comprehensive tester is respectively equipped with the above-mentioned test fixture 1, each comprehensive tester is respectively equipped with each isolator one-to-one, that is, the computer host selects a corresponding number of isolators according to the number of comprehensive testers, and the specific circuit connection relationship between the computer host, each isolator, each comprehensive tester and each test fixture 1 is as follows: the USB serial port communication end of the computer host is respectively electrically connected to the input side of each isolator, the output side of each isolator is respectively electrically connected to the USB data interface 22 of the corresponding driving circuit board 5, and the communication end of each comprehensive tester is respectively electrically connected to the communication end of the computer host. Among them, each isolator is an anti-interference isolator, and in this embodiment, each isolator is a photoelectric coupler.

[0072] Before testing, the USB serial port communication terminal of the computer host is connected to the input side of the isolator, and the output side of the isolator is connected to the USB data interface 22 of the driver circuit board 5, and then the aforementioned connection is performed. In this way, the control instructions transmitted by the computer host to the corresponding driver circuit board 5 are first isolated by the corresponding isolator and then transmitted to the corresponding driver circuit board 5.

[0073] The present invention provides a test system for an automatic test device for an intercom, wherein isolators are respectively connected between a computer host and a driving circuit board 5 in each test fixture 1, so that one computer host can drive multiple comprehensive testers to test simultaneously, that is, one computer host can drive multiple intercoms to be tested to be tested simultaneously. The specific test process is the same as the process of the above-mentioned computer host driving a comprehensive tester to test, so it will not be described in detail.

[0074] The above description is only a preferred embodiment of the present embodiment, and all equivalent changes and modifications made within the scope of the claims of the present invention should fall within the scope of the claims of the present invention.

Claims

1. An automatic test device for an intercom, characterized in that: The invention comprises a test tool and a test system, wherein the test tool comprises a radio frequency connector mechanism, a plurality of ejectors, a test box provided with a tool slot, and a driving circuit board installed in the test box; a plurality of interfaces are provided on the peripheral side of the test box, each of the interfaces comprises a power interface, a communication interface, and a connection interface; the radio frequency connector mechanism comprises a radio frequency connector, and the radio frequency connector is installed on the test box in a manner close to or away from the tool slot; each of the ejectors is installed on the test box, and one end of each of the ejectors can extend out of the tool slot, two of the ejectors in each of the ejectors correspond to a communication connection point and a power connection point, respectively, the communication connection point is connected to the communication end of the driving circuit board, the communication interface is connected to the communication end of the driving circuit board, the power interface and the power connection point are respectively connected to the power end of the driving circuit board, the connection interface is equipped with the ejectors, and the connection interface is connected to the corresponding ejectors through a wire; The test system includes a computer host, multiple isolators and multiple comprehensive testers, each isolator is an anti-interference isolator, each comprehensive tester is respectively equipped with the test tooling, each comprehensive tester is respectively equipped with each isolator one-to-one, the USB serial port communication end of the computer host is respectively electrically connected to the input side of each isolator, the output side of each isolator is respectively bidirectionally electrically connected to the USB data interface of the corresponding driver circuit board, and the communication end of each comprehensive tester is respectively bidirectionally electrically connected to the communication end of the computer host, and the radio frequency connector is connected to the radio frequency end of the comprehensive tester, and the connection interface is connected to the speaker end of the comprehensive tester, wherein the power input end of the driver circuit board is connected to the power output end of the digital power supply, and the output power line of the digital power supply is connected to the power interface; The RF connector mechanism further includes a moving device, the moving device includes a first driving member and a driving source, the first driving member is mounted on the test box, and a transmission component of the first driving member is connected to the RF connector; The first driving member is a first air cylinder, the driving source is an air source, and the transmission component of the first driving member is a first piston rod of the first air cylinder; or, the first driving member is a first hydraulic cylinder, the driving source is a hydraulic source, and the transmission component of the first driving member is the first piston rod of the first hydraulic cylinder; or, the first driving member is a first electric rod, the driving source is a power source, and the transmission component of the first driving member is a telescopic rod of the first electric rod; wherein, the first driving member is connected to the driving source via a first solenoid valve, and the driving end of the first solenoid valve is connected to the signal output end of the driving circuit board.

2. The automatic test device for an intercom according to claim 1, characterized in that: The test fixture also includes a positioning mechanism, which includes a lifting device and a plurality of positioning pins arranged up and down. The lifting device is installed on the test box, and each positioning pin moves up and down through the lifting device, and the lower end of each positioning pin faces the fixture slot.

3. The automatic test device for an intercom according to claim 2, characterized in that: A test frame is mounted on the test box, the lifting device is installed on the test frame, a movable plate that can slide up and down is installed on the test frame, the upper end of each positioning pin is connected to the movable plate, and the movable plate moves up and down through the lifting device.

4. The automatic test device for an intercom according to claim 2, characterized in that: The lifting device comprises a second driving member and a driving source, the second driving member is mounted on the test box, and a transmission component of the second driving member is connected to each of the positioning pins.

5. The automatic test device for an intercom according to claim 4, characterized in that: The second driving member is a second air cylinder, the driving source is an air source, and the transmission component of the second driving member is the first piston rod of the second air cylinder; or, the second driving member is a second hydraulic cylinder, the driving source is a hydraulic source, and the transmission component of the second driving member is the first piston rod of the second hydraulic cylinder; or, the second driving member is a second electric rod, the driving source is a power source, and the transmission component of the second driving member is a telescopic rod of the second electric rod; wherein, the first driving member is connected to the driving source via a first solenoid valve, and the driving end of the first solenoid valve is connected to the signal output end of the driving circuit board.

6. The automatic test device for an intercom according to claim 3, characterized in that: The test box is equipped with an elastic device, which includes a telescopic spring, a support rod and a lifting plate. There are at least two support rods, the lower ends of the two support rods are respectively connected to the upper side of the test box, the upper ends of the support rods are commonly connected to the lifting plate, and the telescopic spring is sleeved on each support rod, and the two ends of each telescopic spring are respectively tensioned between the lifting plate and the test box; wherein the tooling slot is arranged on the lifting plate, and the lifting plate is provided with through holes corresponding to each ejector pin.

7. The automatic test device for an intercom according to claim 5, characterized in that: The test box is provided with guide rods, which are arranged up and down. The movable plate is sleeved on the guide rods, and the transmission component of the second driving member is connected with the movable plate.

8. The automatic test device for an intercom according to claim 1, characterized in that: At least one manual switch is installed on the test box, and the manual switch is electrically connected to the signal input terminal of the driving circuit board.

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