Electrical box test equipment and test method

Abstract

The invention discloses electric appliance box testing equipment and a testing method, and belongs to the field of automatic testing. The testing equipment comprises a conveying device, a controller and a testing station, the conveying device is provided with two parallel conveying units, and the jacking device is arranged in a gap between the two conveying units, so that when an induction unit detects that an electric appliance box exists in a preset position, the jacking unit can lift the electric appliance box conveyed in the two conveying units; the conveying unit conveys the electric appliance box to the conveying unit, the pushing unit sends the electric appliance box to the testing station, each blocking unit can intercept the electric appliance box so as to avoid conveying disorder of the electric appliance box on the conveying unit, the testing device of the testing station tests the electric appliance box, and the tested electric appliance box is sent to the jacking unit so that the jacking unit can send the tested electric appliance box back to the conveying unit. According to the scheme, testing of the electric appliance box is fully automatic, manual participation is not needed, the testing efficiency is greatly improved, and meanwhile the labor cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of automated testing technology, and in particular, to an electrical box testing device and a testing method. Background Art

[0002] The electrical box test items mainly include the following aspects:

[0003] Appearance inspection: Check whether there are any defects such as damage, scratches, deformation, etc. on the shell surface, and whether the product name, logo, and label are complete, accurate, and clear.

[0004] Dimension detection: Measure the length, width, height, fixing dimensions, circuit holes, terminal holes and other dimensions of the electrical box to ensure that they meet the design requirements.

[0005] Structural inspection: Check the insulation strength of the outer shell and whether the external fixings (such as screws and gaskets) are complete and tightened to ensure the stability of the structure.

[0006] Line connection detection: Check whether the line connection is correct, firm, and conductive, and whether there is a short circuit or open circuit.

[0007] Electrical performance test:

[0008] AC withstand voltage test: Test the withstand voltage capability of AC 1000V, 50Hz. The withstand current shall not be greater than 10mA1.

[0009] DC withstand voltage test: Test the withstand voltage of DC 1000V, the withstand current shall not be greater than 10mA1.

[0010] Insulation resistance test: The test voltage is 500V and the resistance value should be greater than 1MΩ1.

[0011] Thermal shock test: 5 round trip temperature change tests are carried out with a cycle time of 30 minutes and a test temperature range of -55℃ to +125℃1.

[0012] Currently, many air-conditioning electrical box tests are done manually, or semi-automatic equipment requires manual operation at each workstation. This not only has low testing efficiency, but also requires a lot of labor costs. Summary of the invention

[0013] In order to overcome the shortcomings of the prior art, the present application provides an electrical box testing device and a testing method to solve the problem that many current air conditioner electrical box tests are manual tests, or each workstation of semi-automatic equipment requires manual operation, which not only has low testing efficiency but also requires a lot of labor costs.

[0014] The technical solution adopted by this application to solve its technical problem is:

[0015] In a first aspect, an electrical box testing device is provided, comprising:

[0016] Conveyors, controllers and test stations;

[0017] The conveying device includes two parallel conveying units, a plurality of blocking units and a plurality of lifting devices, wherein the conveying unit is used to convey the electrical box to be tested, and the blocking unit is used to prevent the electrical box to be tested from moving with the conveying unit;

[0018] The lifting device includes a sensing unit, a lifting unit and a pushing unit; the sensing unit is used to sense whether there is an electrical box at a predetermined position; the lifting unit is arranged between two conveying units, and is used to lift the electrical box to be tested on the conveying units; the pushing unit is used to push the electrical box lifted by the lifting unit to the testing station;

[0019] The testing station is provided with a testing device for testing the electrical box to be tested and sending the tested electrical box to the lifting unit so that the lifting unit can send the tested electrical box back to the conveying unit;

[0020] The blocking unit, the lifting device and the testing device are electrically connected to the controller;

[0021] The controller is used to determine the state of the electrical box when the sensing unit detects the electrical box, and control the blocking unit whether to block the electrical box from moving with the conveying unit according to the state of the electrical box. The controller is also used to control the lifting unit and the pushing unit to send the untested electrical box to the testing station.

[0022] Further, it also includes: a code scanning station;

[0023] The code scanning station includes a code scanning device and a first RFID reading and writing device;

[0024] The code scanning device and the first RFID reading and writing device are electrically connected to the controller respectively;

[0025] The first RFID reader / writer is used to scan the assembly result information of the electrical box to be tested; if the assembly result information is qualified, the controller controls the scanner to obtain the test code of the electrical box to be tested;

[0026] The first RFID reading and writing device is used to write the test code into the chip of the electrical box to be tested.

[0027] Further, it also includes a sorting station;

[0028] The sorting station includes an RFID reading device and a rejection device;

[0029] The RFID and the rejection device are electrically connected to the controller respectively;

[0030] The RFID is used to read the test code of the electrical appliance box. When the test code is not read or the test code shows that the test fails, the controller controls the rejection device to reject the electrical appliance box.

[0031] Further, the testing device includes a second RFID reading device, a moving unit, an in-place sensor, a positioning unit and a testing unit;

[0032] The second RFID reading and writing device, the moving unit, the in-position sensor, the positioning unit and the testing unit are electrically connected to the controller respectively;

[0033] The second RFID reading and writing device is used to read the test code of the electrical box and write the test result into the chip of the electrical box;

[0034] The moving unit is used to move the electrical box to the test position when the pushing unit pushes the electrical box to the test station; and to move the electrical box to the lifting unit after the test is completed;

[0035] The in-position sensor is used to detect whether the electrical box reaches the test position;

[0036] When the electrical box reaches the test position, the controller controls the positioning unit to move and fix the electrical box, and the controller controls the test unit to move and connect the test unit with the electrical box so that the test unit can start testing.

[0037] Furthermore, test stations are provided on both sides of the conveying unit, and the pushing unit can push the electrical box lifted by the lifting unit to the test station on either side of the conveying unit.

[0038] In a second aspect, a method for testing an electrical box is provided, which is applied to the above-mentioned electrical box testing device, and the method comprises:

[0039] Obtain assembly result information of the electrical box to be tested;

[0040] If the assembly result information is qualified, the state of the electrical box in front of each blocking unit and the number of idle test stations behind each blocking unit are obtained, the state of the electrical box including tested and untested, and the idle test station is a test station that is not in a test state and has not been assigned an electrical box to be tested;

[0041] The blocking unit is controlled to release the electrical box to be tested according to the state of the electrical box and the idle quantity, so that the test station tests all the electrical boxes with qualified assembly result information and writes the test results into the chip of the electrical box.

[0042] Further, the controlling the blocking unit to release the electrical box to be tested according to the state of the electrical box and the idle quantity includes:

[0043] When there are multiple idle test stations and the status of the electrical box is untested, the idle test stations are sorted according to their positions on the conveying unit, wherein the idle test stations located further back on the conveying unit are ranked higher;

[0044] The blocking unit is controlled to release the electrical box according to the sequence.

[0045] Furthermore, it also includes:

[0046] If the assembly result information is unqualified, the blocking unit is controlled to release the electrical box with the unqualified assembly result information.

[0047] Furthermore, it also includes:

[0048] If the test result of the electrical appliance box is unqualified or the assembly result information is unqualified, the rejection device is controlled to reject the electrical appliance box.

[0049] Furthermore, it also includes:

[0050] When the electrical box is tested at the testing station, if the first test is qualified, the test result of the qualified test is written into the chip of the electrical box;

[0051] If the first test fails, the test operation is controlled to perform a second test on the electrical box, and the test result of the second test is written into the chip of the electrical box.

[0052] Beneficial effects:

[0053] The technical solution of the present application provides an electrical box testing device and a testing method. The testing device includes a conveying device, a controller and a testing station. The conveying device is provided with two parallel conveying units, and the lifting device is provided in the gap between the two conveying units, so that when the sensing unit detects that there is an electrical box at a preset position, the lifting unit can lift the electrical box conveyed by the two conveying units, and send the electrical box to the testing station through the pushing unit. Each blocking unit can intercept the electrical box to avoid confusion in the conveying of the electrical box on the conveying unit. The testing device at the testing station tests the electrical box and sends the tested electrical box to the lifting unit, so that the lifting unit can send the tested electrical box back to the conveying unit. The testing of the electrical box in the present application solution is fully automated, without the need for human intervention, which greatly improves the testing efficiency while reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0055] Figure 1 It is a structural schematic diagram of an electrical box testing device provided in an embodiment of the present application;

[0056] Figure 2 It is a schematic diagram of the structure of a testing device provided in an embodiment of the present application;

[0057] Figure 3 is a flow chart of an electrical box testing method provided in an embodiment of the present application;

[0058] Figure 4 It is a flow chart of a specific electrical box testing method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0059] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme of the present application is described in detail below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other implementation methods obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0060] First of all, it should be noted that due to angle or actual display issues, some devices or components mentioned in this application are not shown in the figures, but those skilled in the art should understand their implementation methods in combination with the description of this application and the devices and components shown.

[0061] Reference Figure 1 , the embodiment of the present application provides an electrical box testing device, comprising:

[0062] Scanning station, conveying device, controller and testing station and sorting station;

[0063] The code scanning station includes a code scanning device and a first RFID reading and writing device; the code scanning device and the first RFID reading and writing device are electrically connected to the controller respectively;

[0064] The first RFID reader / writer is used to scan the assembly result information of the electrical box to be tested; if the assembly result information is qualified, the controller controls the scanner to obtain the test code of the electrical box to be tested; the first RFID reader / writer is used to write the test code into the chip of the electrical box to be tested. Because this equipment is set behind the assembly production line, the front assembly production line will write the assembly result information into the chip, so it is scanned directly. In this way, unqualified ones can be directly released to the sorting station without testing. Qualified ones need to write the test code into the chip. Exemplarily, the test code is an MES code, and the chip of the electrical box is an RFID chip.

[0065] The conveying device comprises two parallel conveying units, a plurality of blocking units and a plurality of lifting devices. The conveying unit is used to convey the electrical box to be tested, and the blocking unit is used to prevent the electrical box to be tested from moving along with the conveying unit.

[0066] Exemplarily, the conveying unit drives the electrical box to move via rollers (multiple small rollers) or belts. It is understood that the rollers and belts are provided with matching motors; the electrical box moves under the conveyance of the two conveying units under the drive of the motor.

[0067] The blocking unit blocks the electrical box by means of a railing or a baffle. When release is required, the railing or the baffle is lifted or moved to be parallel to the conveying unit, or the blocking unit blocks the electrical box by means of a block. For example, the block is arranged between the two conveying units. When the electrical box needs to be intercepted, the block is extended by means of a spring or a cylinder or other moving mechanism. When release is required, the block is retracted.

[0068] The lifting device includes a sensing unit, a lifting unit and a pushing unit; the sensing unit is used to sense whether there is an electrical box at a predetermined position; the lifting unit is arranged between two conveying units, and is used to lift the electrical box to be tested on the conveying units; the pushing unit is used to push the electrical box lifted by the lifting unit to the testing station;

[0069] The sensing unit is a photoelectric sensor or a proximity switch. Its function is to report to the controller when it detects that there is an electrical box in front of the blocking unit. The controller determines whether to control the blocking unit to be released according to the assembly result information and the test result information. In actual situations, when the assembly result information is unqualified, all blocking units are directly released. When qualified, it is first determined whether they have been tested. If they have been tested, they are all released. If they have not been tested, it is necessary to determine whether to release them according to the number of idle test stations and the number of electrical boxes behind the blocking unit, because the test station takes time to test, and if it is not blocked, it is likely to cause the electrical box to be intercepted in the middle position, affecting the delivery of the electrical box after the test.

[0070] The lifting unit is a lifting cylinder that can drive the electrical box to move upward and away from the conveying unit. The pushing unit is a cylinder that can push the electrical box of the lifting unit to the test station. Of course, the lifting unit and the pushing unit can also be set as a mechanical arm or a mechanical claw. This application does not make specific restrictions.

[0071] The testing station is provided with a testing device for testing the electrical box to be tested and sending the tested electrical box to the lifting unit so that the lifting unit can send the tested electrical box back to the conveying unit.

[0072] like Figure 2 As shown, the testing device includes a second RFID reading device, a moving unit, an in-place sensor, a positioning unit and a testing unit;

[0073] The second RFID reading and writing device, the moving unit, the in-position sensor, the positioning unit and the testing unit are electrically connected to the controller respectively;

[0074] The second RFID reading and writing device is used to read the test code of the electrical box and write the test result into the chip of the electrical box. In order to avoid misdetection and improve the accuracy of the test, the embodiment of the present application is provided with a re-test, that is, when the test result of the first test is qualified, the qualified test result is directly written into the chip and then sent back to the conveying unit. If the test result of the first test is unqualified, the test is performed again (at the first test station, without changing the test station), and this time, no matter what the test result is, it is directly written into the chip and sent back to the conveying unit.

[0075] The moving unit is used to send the electrical box to the test position when the pushing unit pushes the electrical box to the test station; and send the electrical box to the lifting unit after the test is completed; an exemplary moving unit is a conveyor belt, and in some embodiments, a robot arm can also be used for direct grasping.

[0076] The in-place sensor is used to detect whether the electrical box has reached the test position; because general tests have strict requirements on the position, it is necessary to set an in-place sensor to ensure that the electrical box is in the test position. For example, a sensor is set at each of the four corners. Only when all four sensors detect the electrical box, it is determined that it has arrived.

[0077] When the electrical box reaches the test position, the controller controls the positioning unit to fix the electrical box, and the controller controls the test unit to move so that the test unit is connected to the electrical box, so that the test unit can start testing. The positioning unit can be set below the test position, such as using a lifting cylinder, and the test unit can be set above the test position. The positioning unit fixes the electrical box, and the test unit moves down to test the electrical box, wherein the structure of the test unit is specifically set according to the test type, such as in the DCT test, the test unit is a plurality of probes. In addition, the positioning unit can also use a fence set around the test position. When fixation is required, the surrounding fences move to fix the electrical box at the test position.

[0078] The blocking unit, the lifting device and the testing device are electrically connected to the controller;

[0079] The controller is used to determine the state of the electrical box when the sensing unit detects the electrical box, and to control the blocking unit to block the electrical box from moving with the conveying unit according to the state of the electrical box. The controller is also used to control the lifting unit and the pushing unit to send the untested electrical box to the testing station. After the test is completed, the controller also controls the moving unit to send the electrical box back to the lifting unit, so that the lifting unit then sends the electrical box back to the conveying unit, so that the conveying unit can transport the tested electrical box to the sorting station.

[0080] As a preferred implementation of the present application, both sides of the conveying unit are provided with test stations, and the pushing unit can push the electrical box raised by the lifting unit to the test station on either side of the conveying unit. This can increase the number of electrical boxes tested simultaneously and improve efficiency.

[0081] The sorting station includes an RFID reading device and a rejection device;

[0082] The RFID and the rejection device are electrically connected to the controller respectively;

[0083] The RFID is used to read the test code of the electrical box, and determine whether to reject it according to the test code. When the test code is not read or the test code shows that the test fails, the controller controls the rejection device to reject the electrical box. Failure to read the test code indicates that the assembly is unqualified and it is directly rejected. Failure to test is also directly rejected. The rejection device can be a cylinder or a mechanical claw.

[0084] The electrical box testing device provided in the embodiment of the present application includes a conveying device, a controller and a test station. The conveying device is provided with two parallel conveying units, and the lifting device is provided in the gap between the two conveying units, so that when the sensing unit detects that there is an electrical box at a preset position, the lifting unit can lift the electrical box conveyed by the two conveying units, and send the electrical box to the test station through the pushing unit. Each blocking unit can intercept the electrical box to avoid confusion in the conveying of the electrical box on the conveying unit. The testing device at the test station tests the electrical box and sends the tested electrical box to the lifting unit, so that the lifting unit can send the tested electrical box back to the conveying unit. The test of the electrical box in the present application solution is fully automated, without the need for human intervention, which greatly improves the test efficiency and reduces the labor cost.

[0085] Based on the same inventive concept, Figure 3 As shown, the present application also provides an electrical box testing method, which is applied to the electrical box testing device provided in the above embodiment, and the method includes:

[0086] S11: Obtain assembly result information of the electrical box to be tested; the assembly result information includes qualified and unqualified. The assembly result information is obtained through the RFID reader / writer of the code scanning station. When the assembly result information is qualified, the code scanning device is controlled to scan the QR code of the electrical box to obtain the test code, and then write it into the chip of the electrical box.

[0087] S12: If the assembly result information is qualified, the status of the electrical box in front of each blocking unit and the number of idle test stations behind each blocking unit are obtained. The status of the electrical box includes tested and untested. The idle test station is a test station that is not in a test state and has not been assigned an electrical box to be tested.

[0088] It should be noted that when the test station tests the electrical box, if the first test is qualified, the test result of the qualified test is written into the chip of the electrical box;

[0089] If the first test fails, the test operation is controlled to perform a second test on the electrical box, and the test result of the second test is written into the chip of the electrical box.

[0090] S13: Control the blocking unit to release the electrical box to be tested according to the state of the electrical box and the idle quantity, so that the test station tests all the electrical boxes with qualified assembly result information and writes the test results into the chip of the electrical box.

[0091] Wherein, controlling the blocking unit to release the electrical box to be tested according to the state of the electrical box and the idle quantity includes:

[0092] When the number of idle test stations is multiple and the status of the electrical box is untested, the idle test stations are sorted according to their positions on the conveying unit, wherein the idle test stations that are located further back in the conveying unit are ranked higher; the front and back of the test stations are divided according to the direction in which the conveying unit conveys the electrical box, that is, whichever of the two test stations is closer to the sorting station is positioned higher (since there are test stations on both sides of the conveying unit in the embodiment of the present application, if this is the case, a priority is set separately, that is, if the distances to the sorting station are the same, the left or right side of the conveying unit is sorted higher).

[0093] The blocking unit is controlled to release the electrical box according to the sequence.

[0094] In addition, if the assembly result information is unqualified, the blocking unit is controlled to release the electrical box with the unqualified assembly result information.

[0095] For example, for any blocking unit, when the sensing unit in front of it detects the electrical box, the controller determines whether it is assembled properly and whether it has been tested according to the conveying speed of the conveying unit and the blocking time of any blocking unit in front. Because the time of scanning the code is known, the time when the test station returns to the conveying unit after the test is completed is known, and the approximate position of the conveying unit can be determined according to the speed of the conveying unit. In this way, when the sensing unit detects it, if the error between the approximate position and the predetermined position corresponding to the sensing unit is within the allowable range, the electrical box can be determined, and then it can be obtained whether it is assembled properly and whether it has been tested.

[0096] For those that are not qualified for assembly and have been tested, the blocking unit is directly released so that they can enter the sorting station. For those that are qualified for assembly and not tested, it is necessary to obtain the number of idle test stations behind the blocking unit. Only when there is an idle test station behind, the controller controls the current blocking unit to be released, and the number of idle test stations is reduced by one after release.

[0097] When there are multiple idle test stations, due to the different order of the test stations, if the electrical box is sent to the front test station first, the rear test station may not be used. Therefore, at this time, the present application prioritizes sending the electrical box to the rear test station to ensure uniform use and improve efficiency.

[0098] In order to further illustrate the present application scheme, the following Figure 1 and Figure 2The structure shown provides a specific schematic diagram of the DCT test process of an electrical box. The equipment mainly includes a conveying roller (i.e., a conveying unit), a code scanning station, a test station, and a sorting station; there is a mechanism (a total of 7) at the entrance and exit of each test station in the conveying roller, including a photoelectric sensor (i.e., a sensing unit), a motor, a blocking unit, and a lifting device, which are used to transport the electrical box tooling in and out of the test station; the code scanning station has a code scanning gun (i.e., a code scanning device), a first RFID reader and writer, and a blocking cylinder (equivalent to a blocking unit); the test station mainly has a test device, which includes a positioning cylinder (i.e., a positioning unit), a test fixture (i.e., a test unit), a second RFID reader and writer, and a photoelectric sensor (i.e., an in-place sensor); the sorting station has a positioning module and a blocking cylinder, a clamp (i.e., a rejection device), and an RFID reader;

[0099] Workflow, such as Figure 4 As shown:

[0100] Scanning code: This equipment is behind the electrical box assembly line. After the electrical box is assembled, it comes to the scanning station. The first RFID reader / writer reads the assembly result information to determine whether the assembly is qualified. If the assembly is unqualified, the blocking unit releases the electrical box and flows directly to the last sorting station for NG sorting without entering the test station on the way; if the assembly is qualified, the barcode scanner scans the QR code on the PCB board of the electrical box to obtain the MES code. The first RFID reader / writer writes the MES code to the tooling chip. After writing is completed, it waits for the test station to have a feeding request and then the blocking unit releases it to enter the test.

[0101] Entering the station: To ensure the efficiency of entering the station, priority is given to entering the test stations at the back, that is, stations 7 and 14; when the electrical box enters the first sensing unit after scanning the code, the current status of the electrical box is judged (tested, untested, assembly failure), and the electrical box is blocked and released to the second sensing unit after meeting the release conditions. At the same time, the current status of the electrical box is also transmitted to the second sensing unit; the judgment continues until the electrical box reaches the test station it needs to enter. When it is judged that the electrical box is untested, the lifting device is lifted by the lifting unit and the pushing unit to send the electrical box to the test station.

[0102] The sensing unit determines the current state of the electrical box and calculates the feed quantity at the same time. When each sensing unit senses the electrical box, the controller calculates the number of idle test stations (the number of required boards) behind the blocking unit. When the current state of the electrical box is untested, the feed quantity of the sensing unit is increased by 1. When the feed quantity is equal to the number of required boards, the blocking unit at the sensing unit will not continue to release. When the electrical box enters the test station and the sensing sensor in the test station is triggered, the feed quantity in front of the station will be reduced by 1, and the number of required boards will also be reduced by 1.

[0103] Test: After the electrical box enters the test station, the second RFID reader / writer obtains the MES code of the electrical box. After reading, the positioning cylinder lifts and fixes the electrical box, and then the test fixture is pressed down. The probe on the test fixture is aligned with the needle seat on the electrical box. After pressing into place, the PLC sends the MES code to the test system. The PLC and the test system define a custom communication protocol to facilitate the distinction of test data and results of each station; after receiving the MES code, the test system replies to the PLC to stop sending and starts the DCT test at the same time. After the test is completed, the system sends the result to the PLC, and the test fixture and the positioning cylinder are returned. If the test is qualified, the second RFID reader / writer writes the test result and requests to exit. If the first test fails, a retest will be performed, and the test fixture is pressed down again to send MES to the system to start retesting. Regardless of whether the second test is qualified or not, the second RFID reader / writer will write the result to the tooling chip and request to exit.

[0104] Outbound: After requesting outbound, wait until there is no electrical box on the lifting device at the station, then you can start outbound. The lifting unit lifts up, and the moving unit reverses to transport the electrical box out of the lifting unit. The lifting unit descends to send the electrical box to the conveying roller. After the sensing unit reaches the electrical box, the controller changes the status of the electrical box (from untested to tested). At this time, it is in the tested state, and the same judgment is made as when entering the station. As the electrical box moves, the status of the electrical box is transmitted until it flows to the sorting station.

[0105] Sorting: When the electrical box and tooling arrive at the sorting station, the RFID reader reads the test results. If the test is qualified, the electrical box and the tooling are released and flow to the back for packaging; if the test is unqualified or the assembly is unqualified, the gripper adds the electrical box to the NG belt and the tooling flows away, and the test process ends.

[0106] The embodiment of the present application designs an automatic control method for online DCT testing of an electrical box to realize automation of electrical box testing, improve electrical box testing efficiency, greatly reduce labor costs, and achieve the purpose of reducing staff and increasing efficiency.

[0107] It should be noted that, in the description of this application, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "plurality" refers to at least two.

[0108] It can be understood that the same or similar parts of the above embodiments can be referenced to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments.

Claims

1. An electrical box testing device, characterized in that: include: Conveyors, controllers and test stations; The conveying device includes two parallel conveying units, a plurality of blocking units and a plurality of lifting devices, wherein the conveying unit is used to convey the electrical box to be tested, and the blocking unit is used to prevent the electrical box to be tested from moving with the conveying unit; The lifting device includes a sensing unit, a lifting unit and a pushing unit; the sensing unit is used to sense whether there is an electrical box at a predetermined position; the lifting unit is arranged between two conveying units, and is used to lift the electrical box to be tested on the conveying units; the pushing unit is used to push the electrical box lifted by the lifting unit to the testing station; The testing station is provided with a testing device for testing the electrical box to be tested and sending the tested electrical box to the lifting unit so that the lifting unit can send the tested electrical box back to the conveying unit; The blocking unit, the lifting device and the testing device are electrically connected to the controller; The controller is used to determine the state of the electrical box when the sensing unit detects the electrical box, and control the blocking unit whether to block the electrical box from moving with the conveying unit according to the state of the electrical box. The controller is also used to control the lifting unit and the pushing unit to send the untested electrical box to the testing station.

2. The electrical box testing device according to claim 1, characterized in that: Also includes: Scan code station; The code scanning station includes a code scanning device and a first RFID reading and writing device; The code scanning device and the first RFID reading and writing device are electrically connected to the controller respectively; The first RFID reader / writer is used to scan the assembly result information of the electrical box to be tested; if the assembly result information is qualified, the controller controls the scanner to obtain the test code of the electrical box to be tested; The first RFID reading and writing device is used to write the test code into the chip of the electrical box to be tested.

3. The electrical box testing device according to claim 2, characterized in that: It also includes sorting stations; The sorting station includes an RFID reading device and a rejection device; The RFID and the rejection device are electrically connected to the controller respectively; The RFID is used to read the test code of the electrical appliance box. When the test code is not read or the test code shows that the test fails, the controller controls the rejection device to reject the electrical appliance box.

4. The electrical box testing device according to claim 1, characterized in that: The testing device includes a second RFID reading device, a moving unit, an in-place sensor, a positioning unit and a testing unit; The second RFID reading and writing device, the moving unit, the in-position sensor, the positioning unit and the testing unit are electrically connected to the controller respectively; The second RFID reading and writing device is used to read the test code of the electrical box and write the test result into the chip of the electrical box; The moving unit is used to move the electrical box to the testing position when the pushing unit pushes the electrical box to the testing station; After the test is completed, the electrical box is sent to the lifting unit; The in-position sensor is used to detect whether the electrical box reaches the test position; When the electrical box reaches the test position, the controller controls the positioning unit to move and fix the electrical box, and the controller controls the test unit to move and connect the test unit with the electrical box so that the test unit can start testing.

5. The electrical box testing device according to claim 1, characterized in that: Test stations are arranged on both sides of the conveying unit, and the pushing unit can push the electrical box lifted by the lifting unit to the test station on either side of the conveying unit.

6. A method for testing an electrical box, characterized in that: Applicable to the electrical box testing device according to any one of claims 1 to 5, the method comprising: Obtain assembly result information of the electrical box to be tested; If the assembly result information is qualified, the state of the electrical box in front of each blocking unit and the number of idle test stations behind each blocking unit are obtained, the state of the electrical box including tested and untested, and the idle test station is a test station that is not in a test state and has not been assigned an electrical box to be tested; The blocking unit is controlled to release the electrical box to be tested according to the state of the electrical box and the idle quantity, so that the test station tests all the electrical boxes with qualified assembly result information and writes the test results into the chip of the electrical box.

7. The method according to claim 6, characterized in that The controlling of the blocking unit to release the electrical box to be tested according to the state of the electrical box and the idle quantity comprises: When there are multiple idle test stations and the status of the electrical box is untested, the idle test stations are sorted according to their positions on the conveying unit, wherein the idle test stations located further back on the conveying unit are ranked higher; The blocking unit is controlled to release the electrical box according to the sequence.

8. The method according to claim 6, characterized in that Also includes: If the assembly result information is unqualified, the blocking unit is controlled to release the electrical box with the unqualified assembly result information.

9. The method according to claim 8, characterized in that Also includes: If the test result of the electrical appliance box is unqualified or the assembly result information is unqualified, the rejection device is controlled to reject the electrical appliance box.

10. The method according to claim 6, characterized in that Also includes: When the electrical box is tested at the testing station, if the first test is qualified, the test result of the qualified test is written into the chip of the electrical box; If the first test fails, the test operation is controlled to perform a second test on the electrical box, and the test result of the second test is written into the chip of the electrical box.

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