Automatic test line

Abstract

The utility model discloses an automatic test production line relates to electric power equipment detection technical field. It includes the feeding unit, wiring unit, test unit, the unit of pulling out and the unloading unit of sequence setting to the unit of conveying that goes through above -mentioned, and. Among them, the measured piece is placed in the carrier plate, and realizes the wiring and the pulling out of the line operation between the measured piece and the carrier plate by wiring unit and the unit of pulling out, the conveying unit includes the first conveyer chain and the second conveyer chain who includes the parallelism of up and down and the conveying direction is opposite, and the first conveyer chain is used to carry the carrier plate with the measured piece and is in order conveyed to other units, and the second conveyer chain is used to return flow carrier plate, test unit is used to test the measured piece, and the feeding unit and the unloading unit all set up the handling mechanism and carry out the feeding and the unloading operation to the measured piece. Through this scheme, need not manual to send the carrier plate, and also need not frequently to carry out the wiring, the reading and the pulling out etc. operation, thereby has promoted the automation degree and the test efficiency of the measured piece test process.

Description

Technical Field

[0001] This utility model relates to the field of power equipment testing technology, and in particular to an automatic testing production line. Background Technology

[0002] In power systems, reactive power compensation devices are typically installed at power receiving points to reduce power loss caused by reactive current. Static Var Generator (SVG) modules, as the core component of these devices, directly affect the performance of the compensation system. Therefore, SVG modules undergo multiple tests after production to ensure they meet the required electrical performance standards. Existing testing lines, such as for low-voltage testing of SVG modules, require manual operation using various instruments to sequentially connect, test, read, and disconnect different SVG modules. This results in long testing times for individual items and low overall testing efficiency. Utility Model Content

[0003] The main purpose of this invention is to propose an automated testing production line, which aims to improve the testing efficiency of static var generators.

[0004] To achieve the above objectives, this utility model proposes an automatic testing production line, including a carrier plate and a conveying unit. The carrier plate is used to carry the test piece, and the conveying unit includes a first conveyor chain and a second conveyor chain that are parallel to each other and have opposite conveying directions.

[0005] The automated testing production line further includes a feeding unit, a wiring unit, a testing unit, a wire pulling unit, and a unloading unit arranged sequentially along the conveying direction of the first conveyor chain, wherein:

[0006] The carrier board includes multiple test interfaces. The wiring unit is used to connect the test interfaces to the device under test (DUT). The disconnection unit is used to disconnect the test interfaces from the DUT.

[0007] The test unit includes multiple test ports, which are used to connect to the test interface.

[0008] The first conveyor chain includes a first loading position, a second loading position, and a unloading position. The second conveyor chain includes a lifting position disposed below the second loading position and a receiving position disposed below the unloading position. The lifting position is equipped with a loading lifting component, and the receiving position is equipped with an unloading lifting component. The first loading position is used to receive the test piece, the loading lifting component is used to lift the carrier plate from the lifting position to the second loading position, and the unloading lifting component is used to drive the carrier plate from the unloading position to the receiving position.

[0009] The first loading position, the second loading position and the lifting position are disposed in the loading unit, and the loading unit includes a loading mechanism for transporting the test piece;

[0010] The unloading position and the receiving position are disposed in the unloading unit, and the unloading unit includes an unloading mechanism for transporting the test piece.

[0011] In one embodiment, the test unit includes a low-voltage test device and an aging test device. The aging test device is installed on the side of the low-voltage test device away from the wiring unit. The low-voltage test device includes a low-voltage test compartment, and the aging test device includes an aging test compartment. Both the low-voltage test compartment and the aging test compartment are located on the side of the first transmission chain, and both the low-voltage test compartment and the aging test compartment are provided with a variety of test ports.

[0012] The first conveyor chain also includes a low-pressure test section and an aging test section. Both the low-pressure test section and the aging test section are equipped with a rotary lifting device, which is used to convey the carrier plate to the low-pressure test storage location or the aging test storage location.

[0013] In one embodiment, both the low-pressure test bay and the aging test bay are equipped with a receiving drive chain, a pressing cylinder, and an ejecting cylinder. The receiving drive chain is used to receive the carrier plate from the rotary lifting device. The pressing cylinder is used to press the carrier plate so that the test interface aligns with the detection port. The ejecting cylinder is used to eject the carrier plate so that the test interface contacts and connects with the detection port.

[0014] In one embodiment, at least two low-pressure test cells are provided along the conveying direction of the first conveyor chain, and the aging test equipment includes at least two rows of cells arranged along the conveying direction of the first conveyor chain. Each row of cells includes at least two aging test cells arranged vertically. Each low-pressure test cell is provided with one rotary lifting device, and each cell group is provided with one rotary lifting device.

[0015] In one embodiment, both the low-pressure testing equipment and the aging testing equipment include an in-situ sensor and a zone controller. Each low-pressure testing bay and each aging testing bay is equipped with the in-situ sensor, which is used to detect the in-situ information of the carrier plate. Both the in-situ sensor and the rotary lifting device are communicatively connected to the zone controller.

[0016] In one embodiment, the carrier plate includes a base plate and a detection component mounted on the top surface of the base plate. The detection component includes the test interface and a conduit for connecting the test interface to the device under test.

[0017] In one embodiment, the wiring unit includes a wiring position and a wiring robot installed at the wiring position, and the wire disconnection unit includes a wire disconnection position and a wire disconnection robot installed at the wire disconnection position. The first conveyor chain passes through the wiring position and the wire disconnection position. The wiring robot is used to connect the conduit to the device under test, and the wire disconnection robot is used to disconnect the conduit from the device under test.

[0018] In one embodiment, the wiring unit includes a wiring position and a wiring manual operation position disposed on one side of the wiring position, and the wire disconnection unit includes a wire disconnection position and a wire disconnection manual operation position disposed on one side of the wire disconnection position. The first conveyor chain passes through the wiring position and the wire disconnection position, and both the wiring manual operation position and the wire disconnection manual operation position are used to accommodate the operator.

[0019] In one embodiment, the unloading unit further includes a pallet and a qualified pallet placed on the top surface of the pallet, and the unloading mechanism is used to transport the test piece from the carrier plate to the qualified pallet.

[0020] In one embodiment, the unloading unit further includes a non-conforming product transport vehicle and a non-conforming product pallet placed in the non-conforming product transport vehicle, and the unloading mechanism is also used to transport the test piece from the carrier plate to the non-conforming product pallet.

[0021] According to the technical solution of this utility model, the automatic testing production line includes a carrier plate and a conveying unit. The carrier plate is used to carry the test piece, and the conveying unit includes a first conveyor chain and a second conveyor chain that are parallel to each other and have opposite conveying directions. Furthermore, the automatic testing production line also includes a loading unit, a wiring unit, a testing unit, a wire unloading unit, and an unloading unit arranged sequentially along the conveying direction of the first conveyor chain. The carrier plate includes multiple testing interfaces; the wiring unit is used to connect the testing interfaces to the test piece, and the wire unloading unit is used to disconnect the testing interfaces from the test piece. The testing unit includes multiple detection sockets, which are used to connect to the corresponding testing interfaces. The first conveyor chain includes a first... The system includes a first loading position, a second loading position, and a unloading position. The second conveyor chain includes a lifting position located below the second loading position and a receiving position located below the unloading position. The lifting position is equipped with a loading lifting component, and the receiving position is equipped with a unloading lifting component. The first loading position is used to receive the test piece. The loading lifting component is used to lift the carrier plate from the lifting position to the second loading position, and the unloading lifting component is used to lower the carrier plate from the unloading position to the receiving position. The first loading position, the second loading position, and the lifting position are located in a loading unit, which includes a loading mechanism for transporting the test piece. The unloading position and the receiving position are located in an unloading unit, which includes a unloading mechanism for transporting the test piece. This setup allows the test piece (DPT) to be transported from the first loading station to the carrier plate in the second loading station by the loading mechanism. The carrier plate then enters the wiring unit via the first conveyor chain, completing the connection between the carrier plate and the DPT. Once connected, the carrier plate carrying the DPT enters the testing unit, where the detection port aligns with the testing interface for DPT testing. After testing, the detection port separates from the testing interface, and the carrier plate enters the wire unplugging unit via the first conveyor chain, disconnecting the carrier plate from the DPT. Finally, the carrier plate enters the unloading station via the first conveyor chain. The unloading mechanism transports the DPT from the carrier plate to a designated position. The carrier plate then enters the receiving position via the unloading lifting assembly, returns to the lifting position via the second conveyor chain, and is lifted to the second loading station by the loading lifting assembly. This cycle repeats continuously, eliminating the need for manual transport of the carrier plate to the loading unit and frequent wiring, reading, and wire unplugging operations. This improves the automation of the DPT testing process, reduces manual intervention, and ultimately increases the testing efficiency of the DPT. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 A schematic diagram of an embodiment of the automated testing production line provided by this utility model;

[0024] Figure 2 for Figure 1 A top-view structural diagram;

[0025] Figure 3 A partial structural schematic diagram of an embodiment of the conveying unit provided by this utility model;

[0026] Figure 4 A schematic diagram of the structure of an embodiment of the wiring unit provided by this utility model;

[0027] Figure 5 A schematic diagram of the structure of an embodiment of the feeding unit provided by this utility model;

[0028] Figure 6 This is a schematic diagram of the structure when the carrier plate and the test piece are connected in one embodiment of the present invention.

[0029] Explanation of icon numbers:

[0030] 100. Automated testing production line;

[0031] 1. Conveying unit; 11. First conveyor chain; 111. First loading position; 112. Second loading position; 113. Unloading position; 12. Second conveyor chain; 121. Lifting position; 122. Receiving position; 123. Loading lifting assembly; 124. Unloading lifting assembly;

[0032] 2. Carrier board; 21. Base plate; 22. Detection assembly; 221. Test interface; 222. Conduit;

[0033] 3. Feeding unit; 31. Feeding mechanism; 32. Feeding chamber;

[0034] 4. Wiring unit; 41. Wiring position; 42. Manual wiring operation position;

[0035] 5. Test unit; 51. Low-voltage test equipment; 511. Low-voltage test storage location; 52. Aging test equipment; 521. Aging test storage location;

[0036] 6. Cable disconnection unit; 61. Cable disconnection position; 62. Manual cable disconnection operation position;

[0037] 7. Unloading unit; 71. Unloading mechanism; 72. Unloading space; 73. Pallet; 74. Non-conforming product handling vehicle;

[0038] 200. Item to be tested.

[0039] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0042] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0043] In the operation of power systems, reactive current causes additional power loss, which not only reduces power transmission efficiency but may also negatively impact grid stability and equipment lifespan. To effectively suppress power loss caused by reactive current, reactive power compensation devices are typically installed at the power receiving point. These devices dynamically adjust reactive power output to maintain grid voltage stability and improve the power factor. Static Var Generator (SVG) modules, as the core component of reactive power compensation devices, are designed for rapid and accurate compensation of reactive power in the grid. Their electrical performance parameters (such as response speed, compensation accuracy, and harmonic suppression capability) directly determine the overall efficiency of the reactive power compensation device. Therefore, after manufacturing, SVG modules must undergo rigorous multi-stage testing to verify whether their electrical performance meets design standards and practical application requirements, ensuring that the equipment can stably and reliably perform reactive power compensation tasks after being put into operation.

[0044] According to the applicant's research, the low-voltage testing process in current SVG module testing production lines still relies on traditional manual operation. Specifically, testers must use multiple instruments such as oscilloscopes, power analyzers, and multimeters, performing each SVG module's operation sequentially: first, manually connecting the test cables to the SVG module's ports; then, starting the instruments for data acquisition, continuously observing and recording multiple electrical parameters; and finally, manually disconnecting the cables before moving on to the next device and repeating the process. However, this testing model has significant drawbacks: firstly, the testing time for a single SVG module is significantly prolonged due to the numerous and cumbersome manual steps, especially when multi-parameter simultaneous acquisition or complex operating condition simulations are involved, further extending the testing cycle; secondly, variations in manual operation (such as reading timing and instrument calibration status) can easily lead to data fluctuations, reducing result consistency, while frequent cable plugging and unplugging increases the risk of wear and tear on the SVG module's ports. Due to these factors, the overall testing process for SVG modules is inefficient, failing to meet the dual requirements of timeliness and accuracy for large-scale production.

[0045] Therefore, this invention proposes an automated testing production line to solve or at least alleviate the above-mentioned problems.

[0046] Please see Figures 1 to 3 ,as well as Figure 6In one embodiment of this utility model, the automatic testing production line 100 includes a carrier plate 2 and a conveying unit 1. The carrier plate 2 is used to carry the test piece 200 (including an SVG module). The conveying unit 1 includes a first conveyor chain 11 and a second conveyor chain 12 that are parallel to each other and have opposite conveying directions. In addition, the automatic testing production line 100 also includes a loading unit 3, a wiring unit 4, a testing unit 5, a wire unloading unit 6, and an unloading unit 7 arranged sequentially along the conveying direction of the first conveyor chain 11. The carrier plate 2 includes multiple testing interfaces 221. The wiring unit 4 is used to connect the testing interfaces 221 to the test piece 200, and the wire unloading unit 6 is used to disconnect the testing interfaces 221 from the test piece 200. The testing unit 5 includes multiple detection ports, which are used to connect to the testing interfaces 221. The first conveyor chain 11 includes a first loading position 111, a second loading position 112, and an unloading position 113. The second conveyor chain... 12 includes a lifting position 121 located below the second loading position 112 and a receiving position 122 located below the unloading position 113. The lifting position 121 is equipped with a loading lifting assembly 123, and the receiving position 122 is equipped with a unloading lifting assembly 124. The first loading position 111 is used to receive the test piece 200. The loading lifting assembly 123 is used to lift the carrier plate 2 from the lifting position 121 to the second loading position 112. The unloading lifting assembly 124 is used to drive the carrier plate 2. Plate 2 descends from unloading position 113 to receiving position 122; the first loading position 111, the second loading position 112 and the lifting position 121 are set in the loading unit 3, specifically in the loading cavity 32 of the loading unit 3, which also includes a loading mechanism 31 for transporting the test piece 200; the unloading position 113 and the receiving position 122 are set in the unloading unit 7, which includes an unloading mechanism 71 for transporting the test piece 200.

[0047] Specifically, the first conveyor chain 11 and the second conveyor chain 12 include one of a roller conveyor chain, a chain plate conveyor chain, and a flat-top conveyor chain. The loading lifting assembly 123 and the unloading lifting assembly 124 include one of a pneumatic lifting and transferring mechanism and an electric lifting and transferring mechanism. The loading lifting assembly 123 can move up and down between the second loading position 112 and the lifting position 121, thereby lifting the carrier plate 2 from the second conveyor chain 12 to the first conveyor chain; similarly, the unloading lifting assembly 124 can move up and down between the unloading position 113 and the receiving position 122, thereby transporting the carrier plate 2 from the first conveyor chain to the second conveyor chain. By setting up loading and unloading lifting components, the carrier plate 2 can circulate within the first conveyor chain 11 and the second conveyor chain 12, thereby preventing external personnel or equipment from continuously feeding the carrier plate 2 into the second loading position 112. It also prevents the carrier plate 2 from being removed from the first conveyor chain 11 after moving to the unloading position 113, and from being tidied up. The loading mechanism 31 and the unloading mechanism 71 can be either a six-axis robot or a four-axis robot. The gripping parts in the loading mechanism 31 and the unloading mechanism 71 are vacuum suction cups or grippers. The specific type of gripping part can be changed according to the type of the part to be tested 200. They are also equipped with a vision recognition module that can automatically identify the position, orientation, and model of the part to be tested 200, so that the gripping part can accurately grasp the part to be tested 200.

[0048] Furthermore, at least two test pieces 200 can be placed in a carrier plate 2. The first loading position 111 continuously receives test pieces 200 conveyed by an external conveyor chain. The loading lifting assembly 123 first lifts the carrier plate 2 in the lifting position 121 to the second loading position 112. After the test piece 200 arrives at the first loading position 111, the loading mechanism 31 transports the test piece 200 to the carrier plate 2. Then, the second test piece 200 arrives at the loading position, and the loading mechanism 31 transports the second test piece 200 to the carrier plate 2. This process is repeated until the number of test pieces 200 in the carrier plate 2 reaches the upper limit. The carrier plate 2 carrying the test pieces 200 is then transported to the wiring unit 4 by the first conveyor chain 11. After the wiring unit 4 connects the carrier plate 2 to each test piece 200, the first conveyor chain 11 transports the carrier plate 2 to the testing unit 5 for testing. This setup allows multiple test pieces 200 to be tested at once, thereby improving testing efficiency. After the test piece 200 is tested, the first conveyor chain 11 transports the carrier plate 2 to the wire-removing unit 6, disconnecting the test piece 200 from the carrier plate 2. After the test piece 200 is disconnected from the carrier plate 2, the first conveyor chain 11 transports the carrier plate 2 to the unloading position 113. At this time, the unloading lifting assembly 124 moves to the unloading position 113, allowing the carrier plate 2 to be transported into the lifting plate of the unloading lifting assembly 124. After the unloading mechanism 71 moves each test piece 200 to the designated position, the unloading lifting assembly 124 lowers the empty carrier plate 2 to the receiving position 122, and then the second conveyor chain 12 transports it to the lifting position 121. The loading lifting assembly 123 then lifts the empty carrier plate 2 to the second loading position 112. This cycle continues to complete the testing of the test piece 200. It should be noted that there are multiple carrier plates 2, each capable of carrying at least two test pieces 200, to further improve testing efficiency. It should also be noted that the types of various test interfaces 221 in the carrier board 2 can be set according to the test needs of those skilled in the art.

[0049] With the above-described configuration, the automated testing line 100 provided in this embodiment only requires one wiring and unwiping operation when testing the test piece 200, eliminating the need for frequent wiring and unwiping. Simultaneously, through the cooperation between the test interface 221 of the carrier board 2 and the detection port in the test unit 5, combined with the configuration of the first conveyor chain 11 and the second conveyor chain 12, the automated testing line 100 can automatically test the test piece 200, thus solving the problem of manually testing each test piece 200 one by one using handheld testing equipment. Furthermore, the carrier board 2 can circulate within the first conveyor chain 11 and the second conveyor chain 12, avoiding the need for manual loading and unloading of the carrier board 2. Therefore, the automation level of the automated testing line 100 is improved, manual intervention is reduced, and the testing efficiency of the test piece 200 is increased.

[0050] Further, please refer to Figure 2In one embodiment of this utility model, the test unit 5 includes a low-voltage test device 51 and an aging test device 52. The aging test device 52 is installed on the side of the low-voltage test device 51 away from the wiring unit 4. The low-voltage test device 51 includes a low-voltage test bay 511, and the aging test device 52 includes an aging test bay 521. Both the low-voltage test bay 511 and the aging test bay 521 are located on the side of the first conveyor chain 11. Both the low-voltage test bay 511 and the aging test bay 521 are provided with a variety of test ports. The first conveyor chain 11 also includes a low-voltage test section and an aging test section. Both the low-voltage test section and the aging test section are provided with a rotary lifting device, which is used to convey the carrier plate 2 to the low-voltage test bay 511 or the aging test bay 521. Specifically, the rotary lifting device employs a rotary lifting machine, the specific type of which can be selected according to the design requirements of those skilled in the art. Furthermore, the rotary lifting device also utilizes a multi-joint robotic arm to directly transport the carrier plate 2 carrying the test piece 200 to the low-pressure test bay 511 or the aging test bay 521. Upon receiving the carrier plate 2, the low-pressure test bay 511 or the aging test bay 521 can automatically connect the test interface 221 in the carrier plate 2 to the corresponding detection port. Various specific implementation schemes exist; one scheme will be given in the next embodiment and will not be described in detail here.

[0051] After carrier board 2 is connected to the test port in low-voltage test compartment 511, it needs to undergo a series of steps including insertion test, water circuit leak prevention test, communication check, static pressure test, undervoltage fault alarm, first and second level overvoltage alarm test, DC overvoltage fault and reset test to complete the low-voltage test of the test piece 200. After carrier board 2 is connected to the test port in aging test compartment 521, it needs to undergo a series of steps including insertion test, water circuit leak prevention test, communication check, no-load test, full-load test, load change test and bypass test to complete the aging test of the test piece 200. It should be noted that the low-voltage testing equipment 51 is equipped with a voltage sensor, a current sensor, and a data acquisition module. Both the voltage and current sensors are Hall effect sensors, which can accurately acquire the input and output voltage and current signals of the device under test 200 in real time. The data acquisition module includes a multi-channel data acquisition card and an oscilloscope, which can convert the voltage and current signals detected by the voltage and current sensors into digital signals and transmit them to the industrial computer (central controller) so that the testers can automatically acquire the test data. In addition, the aging testing equipment 52 is equipped with multiple temperature sensors, voltage sensors, and current sensors, which are also equipped with a data acquisition module. Through the data acquisition module, the different signals acquired by various sensors can be converted into digital signals and transmitted to the industrial computer.

[0052] As one embodiment, both the low-pressure test bay 511 and the aging test bay 521 are equipped with a receiving drive chain, a clamping cylinder, and an ejecting cylinder. The receiving drive chain is used to receive the carrier plate 2 from the rotary lifting device. The clamping cylinder is used to press the carrier plate 2 to align the test interface 221 with the detection port. The ejecting cylinder is used to eject the carrier plate 2 to make the test interface 221 contact and connect with the detection port. Taking the docking and undocking process between the carrier plate 2 in the aging test section and the aging test bay 521 as an example, the conveying steps of the carrier plate 2 are as follows: First, the rotary lifting device first lifts the carrier plate 2 to a position matching the height of the receiving drive chain; Second, the rotary lifting device drives the carrier plate 2 to rotate, aligning the test interface 221 in the carrier plate 2 with the detection port in the aging test bay 521; Third, the rotary lifting device conveys the carrier plate 2 to the receiving drive chain, which, after receiving the carrier plate 2, moves the carrier plate 2 toward the detection port; Fourth, ... 1. After the carrier plate 2 reaches the predetermined position, the clamping cylinder extends and presses against the carrier plate 2, so that the test interface 221 in the carrier plate 2 is connected to the detection port in the aging test compartment 521; 2. After the aging test is completed, the ejecting cylinder pushes the carrier plate 2 out in the opposite direction, so that the test interface 221 is disconnected from the detection port; 3. The top plate in the rotating lifting device rises and rotates to the outlet of the corresponding aging test compartment 521, and the receiving transmission chain drives the carrier plate 2 to be transported to the rotating lifting device, and the rotating lifting device drives the carrier plate 2 back to the aging test section in the first transmission chain 11.

[0053] This setup enables the first conveyor chain 11 to automatically transport the carrier plate 2 to the low-voltage test compartment 511 and the aging test compartment 521, and enables the carrier plate 2 to automatically dock with the corresponding test ports. This further improves the automation level of the automatic test production line 100, thereby further reducing the degree of manual intervention.

[0054] In one embodiment of this utility model, please refer to Figure 1 and Figure 2At least two low-pressure test bays 511 are arranged along the conveying direction of the first conveyor chain 11. The aging test equipment 52 includes at least two rows of bay groups arranged along the conveying direction of the first conveyor chain 11. Each row of bay groups includes at least two aging test bays 521 arranged vertically. Each low-pressure test bay 511 is equipped with a corresponding rotary lifting device, and each bay group is equipped with a corresponding rotary lifting device. This arrangement allows the low-pressure test equipment 51 and the aging test equipment 52 to simultaneously test multiple groups of test pieces 200 (all test pieces 200 in each carrier plate 2 constitute one group). In this embodiment, three low-pressure test bays 511 are arranged along the conveying direction of the first conveyor chain 11, enabling the low-pressure test equipment 51 to simultaneously perform low-pressure tests on three groups of test pieces 200. The aging test takes longer than the low-pressure test, so the number of test pieces 200 undergoing aging tests simultaneously is greater. In order to save space in the automatic testing production line 100, multiple rows of storage units are set in the aging test equipment 52. Each row of storage units has multiple aging test storage units 521 set in the vertical direction, thereby transforming the aging test storage units 521 from a planar layout to a three-dimensional layout, which significantly reduces the floor space.

[0055] Furthermore, in one embodiment of this utility model, both the low-voltage testing device 51 and the aging testing device 52 include an in-situ sensor and a zone controller. An in-situ sensor is installed in each low-voltage testing bay 511 and each aging testing bay 521. The in-situ sensor is used to detect the in-situ information of the carrier plate 2. Both the in-situ sensor and the rotary lifting device are communicatively connected to the zone controller. The zone controller includes either a PLC (Programmable Logic Controller) or an ACU (Area Controller), and is communicatively connected to a central controller (industrial computer). The in-situ sensor includes either an infrared sensor or a laser sensor. In other embodiments, the in-situ sensor can be directly integrated into the detection port. When the test interface 221 of the carrier plate 2 is connected to the detection port, the zone controller can determine that the carrier plate 2 is in a present state. Through the in-situ sensor, the zone controller can monitor in real time whether a carrier plate 2 is placed in each low-voltage testing bay 511 and aging testing bay 521. Taking the process of the first conveyor chain 11 conveying the carrier plate 2 to the aging test compartment 521 as an example (the in-situ sensor is an infrared sensor): First, the receiver of the infrared sensor in a certain aging test compartment 521 continuously receives the signal emitted by the transmitter of the infrared sensor and sends the signal to the area controller; Second, the area controller determines that the aging test compartment 521 is empty; Third, the area controller controls the rotating lifting device to transport the carrier plate 2 to the opening of the aging test compartment 521; Fourth, the carrier plate 2 enters the aging test compartment 521 and completes the docking.

[0056] Through the configuration of this embodiment, the carrier plate 2 can be automatically transported to the low-pressure test cell 511 or the aging test cell 521 which is in an unloaded state, thereby further improving the automation level of the automatic test production line 100.

[0057] In one embodiment of this utility model, please refer to Figure 6 The carrier plate 2 includes a base plate 21 and a detection assembly 22 mounted on the top surface of the base plate 21. The detection assembly 22 includes a test interface 221 and a conduit 222 for connecting the test interface 221 to the device under test (DUT) 200. The test interface includes an electrical interface and a water interface. The conduit 222 includes a cable tray and a water pipe. The cable tray connects the electrical interface to the corresponding interface in the DUT 200, and the water pipe connects the water interface to the corresponding interface in the DUT 200. It should be noted that the conduit 222 and the test interface 221 are pre-connected; the wiring unit 4 and the disconnection unit 6 only need to operate on the connection process between the conduit 222 and the DUT 200. After the test interface 221 is connected to the device under test (DUT) 200 via the conduit 222, the performance of the DUT 200 can be tested by checking the connection between the test port and the test interface 221. This allows each DUT 200 to complete all low-voltage and aging tests with only one connection and disconnection process, preventing excessive wear on the interfaces of the DUT 200 and avoiding frequent insertion and removal of the conduit 222. It should also be noted that anti-misinsertion structures are provided at the ends of the cable tray and water pipe. These anti-misinsertion mechanisms can be anti-misinsertion notches or terminal structures of different shapes, ensuring the accuracy of the connection between the cable tray and water pipe and the DUT 200.

[0058] There are various ways to implement the wiring and disconnection operations between the carrier plate 2 and the device under test 200. In one embodiment of this utility model, the wiring unit 4 includes a wiring position 41 and a wiring robot installed at the wiring position 41, and the disconnection unit 6 includes a disconnection position 61 and a disconnection robot installed at the disconnection position 61. A first conveyor chain 11 passes through the wiring position 41 and the disconnection position 61. The wiring robot is used to connect the conduit 222 to the device under test 200, and the disconnection robot is used to disconnect the conduit 222 from the device under test 200. Specifically, the wiring robot and the disconnection robot can be either a multi-joint robotic arm or an automatic wiring robot. With this setup, after the carrier plate 2 carrying the device under test 200 enters the wiring position 41 under the drive of the first conveyor chain 11, the wiring robot automatically completes the connection between the conduit 222 and the device under test 200. Similarly, after the carrier plate 2 enters the disconnection position 61, the disconnection robot automatically disconnects the conduit 222 from the device under test 200. In this way, the entire process of feeding, wiring, testing, wire unplugging and unloading is automated, enabling the automatic testing production line 100 to run automatically, reducing the need for personnel and the frequency of human intervention.

[0059] In another embodiment, please refer to Figure 4 The wiring unit 4 includes a wiring position 41 and a manual wiring operation position 42 located on one side of the wiring position 41. The wire unplugging unit 6 includes a wire unplugging position 61 and a manual wire unplugging operation position 62 located on one side of the wire unplugging position 61. The first conveyor chain 11 passes through the wiring position 41 and the wire unplugging position 61. Both the wiring operation position 42 and the wire unplugging operation position 62 are used to accommodate the operator. For example, during wiring operations, the operator stands or sits in the wiring operation position 42. After the carrier plate 2 carrying the test piece 200 arrives at the wiring position 41, the operator manually completes the connection between the conduit 222 and the test piece 200. After the connection is completed, the carrier plate 2 carries the test piece 200 into the low-voltage testing equipment 51 for low-voltage testing. Using manual wiring and unplugging operations can save on equipment purchase and maintenance costs. Furthermore, the efficiency of manual wiring and unplugging is significantly higher than that of robots. Therefore, using manual operations can further improve the working efficiency of the automatic testing production line 100.

[0060] In one embodiment of this utility model, please refer to Figure 5 The unloading unit 7 also includes a pallet 73 and a qualified pallet placed on the top surface of the pallet 73. The unloading mechanism 71 is used to transport the test piece 200 from the carrier plate 2 to the qualified pallet. The pallet 73 is located at the outer end of the first conveyor chain 11 and in the unloading space 72. The unloading mechanism 71 can move the test piece 200 in the unloading space 72. After the aging test is completed, the carrier plate 2 and the test piece 200 move with the first conveyor chain 11 to the unloading position 113. At this time, the top plate of the unloading lifting assembly 124 has risen to the unloading position 113 and is used to support the carrier plate 2. The unloading mechanism 71 stacks the qualified test pieces 200 on the qualified pallet. The qualified pallet with the test pieces 200 stacked is transported away from the unloading space 72 by an external forklift or transport trolley. In one embodiment, the unloading unit 7 further includes a non-conforming product transport cart 74 (NG cart) and a non-conforming product pallet (NG pallet) placed in the non-conforming product transport cart 74. The unloading mechanism 71 is used to transport the test piece 200 from the carrier plate 2 to the non-conforming product pallet. Since the number of non-conforming test pieces 200 is small, a smaller NG cart can be directly placed in the unloading space 72. After the NG pallet on it reaches its maximum load capacity, the NG cart leaves the unloading space 72, and another empty NG cart is moved to the original parking position of the NG cart.

[0061] This setup allows for zoned management of the material handling space 72, enabling the categorized handling and storage of the test parts 200. This reduces manual intervention, improves production efficiency and product quality control, and prevents confusion between qualified and unqualified products, thus facilitating the fulfillment of quality management system requirements. Furthermore, the pallet 73 can be expanded to accommodate different production rhythms.

[0062] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. An automated testing production line, characterized in that, It includes a carrier plate and a conveying unit. The carrier plate is used to carry the test piece. The conveying unit includes a first conveying chain and a second conveying chain that are parallel to each other and have opposite conveying directions. The automated testing production line further includes a feeding unit, a wiring unit, a testing unit, a wire pulling unit, and a unloading unit arranged sequentially along the conveying direction of the first conveyor chain, wherein: The carrier board includes multiple test interfaces. The wiring unit is used to connect the test interfaces to the device under test (DUT). The disconnection unit is used to disconnect the test interfaces from the DUT. The test unit includes multiple test ports, which are used to connect to the test interface. The first conveyor chain includes a first loading position, a second loading position, and a unloading position. The second conveyor chain includes a lifting position disposed below the second loading position and a receiving position disposed below the unloading position. The lifting position is equipped with a loading lifting component, and the receiving position is equipped with an unloading lifting component. The first loading position is used to receive the test piece, the loading lifting component is used to lift the carrier plate from the lifting position to the second loading position, and the unloading lifting component is used to drive the carrier plate from the unloading position to the receiving position. The first loading position, the second loading position and the lifting position are disposed in the loading unit, and the loading unit includes a loading mechanism for transporting the test piece; The unloading position and the receiving position are disposed in the unloading unit, and the unloading unit includes an unloading mechanism for transporting the test piece.

2. The automated testing production line as described in claim 1, characterized in that, The test unit includes a low-voltage test device and an aging test device. The aging test device is installed on the side of the low-voltage test device away from the wiring unit. The low-voltage test device includes a low-voltage test compartment, and the aging test device includes an aging test compartment. Both the low-voltage test compartment and the aging test compartment are located on the side of the first transmission chain. Both the low-voltage test compartment and the aging test compartment are provided with a variety of test ports. The first conveyor chain also includes a low-pressure test section and an aging test section. Both the low-pressure test section and the aging test section are equipped with a rotary lifting device, which is used to convey the carrier plate to the low-pressure test storage location or the aging test storage location.

3. The automated testing production line as described in claim 2, characterized in that, Both the low-pressure test chamber and the aging test chamber are equipped with a receiving transmission chain, a pressing cylinder, and an ejecting cylinder. The receiving transmission chain is used to receive the carrier plate from the rotating lifting device. The pressing cylinder is used to press the carrier plate so that the test interface aligns with the detection port. The ejecting cylinder is used to eject the carrier plate so that the test interface contacts and connects with the detection port.

4. The automated testing production line as described in claim 2, characterized in that, At least two low-pressure test chambers are provided along the conveying direction of the first conveyor chain. The aging test equipment includes at least two groups of chambers arranged along the conveying direction of the first conveyor chain. Each group of chambers includes at least two aging test chambers arranged vertically. Each low-pressure test chamber is provided with a corresponding rotary lifting device. Each group of chambers is provided with a corresponding rotary lifting device.

5. The automated testing production line as described in claim 4, characterized in that, Both the low-pressure testing equipment and the aging testing equipment include an in-situ sensor and a zone controller. Each low-pressure testing bay and each aging testing bay is equipped with the in-situ sensor, which is used to detect the in-situ information of the carrier plate. Both the in-situ sensor and the rotary lifting device are communicatively connected to the zone controller.

6. The automated testing production line as described in any one of claims 1 to 5, characterized in that, The carrier plate includes a base plate and a detection component mounted on the top surface of the base plate. The detection component includes the test interface and a conduit for connecting the test interface to the device under test.

7. The automated testing production line as described in claim 6, characterized in that, The wiring unit includes a wiring position and a wiring robot installed at the wiring position. The wire disconnection unit includes a wire disconnection position and a wire disconnection robot installed at the wire disconnection position. The first conveyor chain passes through the wiring position and the wire disconnection position. The wiring robot is used to connect the conduit to the device under test. The wire disconnection robot is used to disconnect the conduit from the device under test.

8. The automated testing production line as described in claim 6, characterized in that, The wiring unit includes a wiring position and a wiring manual operation position disposed on one side of the wiring position. The wire disconnection unit includes a wire disconnection position and a wire disconnection manual operation position disposed on one side of the wire disconnection position. The first conveyor chain passes through the wiring position and the wire disconnection position. Both the wiring manual operation position and the wire disconnection manual operation position are used to accommodate the operator.

9. The automated testing production line as described in any one of claims 1 to 5, characterized in that, The unloading unit also includes a pallet and a qualified pallet placed on the top surface of the pallet. The unloading mechanism is used to transport the test piece from the carrier plate to the qualified pallet.

10. The automated testing production line as described in claim 9, characterized in that, The unloading unit also includes a non-conforming product transport vehicle and a non-conforming product pallet placed in the non-conforming product transport vehicle. The unloading mechanism is also used to transport the test piece from the carrier plate to the non-conforming product pallet.

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