An integrated detection automation device for a new energy charging gun terminal

Abstract

The application discloses an integrated detection automation device for new energy charging gun terminals, comprising a tray multi-station feeding and discharging mechanism, a terminal multi-station synchronous detection mechanism, a terminal transfer manipulator for transporting new energy charging gun terminals between the two mechanisms and a PLC controller. The tray multi-station feeding and discharging mechanism comprises a tray longitudinal feeding mechanism and a tray transverse carrying mechanism arranged above the tray longitudinal feeding mechanism, which is used for unloading, supplementing and circulating the trays loaded with new energy charging gun terminals, defective products and good products and empty trays. The terminal multi-station synchronous detection mechanism comprises a plugging force testing device, an inner diameter visual detection device, an outer diameter visual detection device and an oiling device arranged on a mounting platform and corresponding tool units. The terminal synchronous carrying mechanism is used for sequentially and synchronously carrying new energy charging gun terminals between adjacent tool units to sequentially perform plugging force testing, inner diameter visual detection, outer diameter visual detection and oiling operation on the new energy charging gun terminals. The good products meeting the detection requirements are sent to a good product tray by the terminal transfer manipulator, and the defective products are sent to a defective product tray. The application has compact overall structure, high efficiency, low noise, stable and reliable operation and is easy to change production lines.

Description

Technical Field

[0001] This invention relates to an integrated automated testing device for the terminals of new energy charging guns. Background Technology

[0002] New energy charging gun terminals are common electrical connection components on current charging guns. Their structure typically consists of a terminal block and a plug-in portion connected to the terminal block via a journal. The plug-in portion is slotted and contains a spring. Currently, the new energy charging gun terminal manufacturing industry requires processed terminals to undergo sequential processes including insertion / extraction force testing, inspection of the inner and outer diameters of the plug-in portion, and oiling. Defective products are removed after inspection, and good products are retained, thereby improving product quality.

[0003] In known technologies, all new energy charging gun terminals, whether they are to be inspected, defective, or good, are loaded onto trays. Manual loading and unloading of these trays is performed at the testing equipment station. In practice, the tray containing the new energy charging gun terminals to be inspected (hereinafter referred to as "inspection items") is first transported manually to the testing equipment. A simple clamping fixture is then manually used to position the terminals before inspection. Qualified new energy charging gun terminals are placed in the good product tray, while unqualified terminals are placed in the defective product tray. Once the good or defective product tray is full, it is manually unloaded, and an empty good or defective product tray is placed on top. The empty inspection tray is also removed, and a new tray filled with inspection items is then placed on top.

[0004] Clearly, the traditional testing procedures for new energy charging gun terminals, as described above, have significant drawbacks: 1. Manual operation is labor-intensive and inefficient, resulting in high labor costs and increased production costs for enterprises. Furthermore, during loading and unloading operations, due to differences in personnel operation, the pallet placement speed often cannot keep up with the operating speed of the testing equipment, which greatly limits the improvement of equipment production efficiency. 2. High labor costs increase the company's production costs; 3. Significant differences in operation among different personnel make it difficult to ensure consistent test results and oiling effects, resulting in challenges in product quality control; 4. Defective products may be produced due to non-standard operating techniques by different workers during the production process. Errors are prone to occur during loading and unloading; for example, for inspection items with specific placement requirements, personnel may operate them in the wrong direction, leading to defects or other abnormalities in subsequent processes.

[0005] To improve testing efficiency and ensure the testing quality of new energy charging gun terminals, the industry currently designs corresponding professional automated testing equipment for each process of new energy charging gun terminals, such as insertion and extraction force testing devices, inner diameter visual inspection devices, outer diameter visual inspection devices, and oiling devices. These devices are integrated and connected through a transmission mechanism to continuously test the new energy charging gun terminals.

[0006] However, the above-mentioned method of integrating and connecting detection devices for testing has revealed the following problems in actual implementation: 1. Manual clamping and replacement of new energy charging gun terminals on various testing devices is still required, which hinders the improvement of testing efficiency; and because the orientation reference of the new energy charging gun terminals on various testing devices is different, workers need to make adjustments, which is time-consuming and labor-intensive. 2. Since the conveying mechanism and various testing devices lack standardized positioning or clamping fixtures for the new energy charging gun terminals, once the specifications and batches of the new energy charging gun terminals to be tested are changed (i.e., wire replacement), the corresponding clamping fixtures of the conveying mechanism and various testing devices must also be replaced and adjusted at the same time. The wire replacement is costly and time-consuming.

[0007] 3. The combined volume of multiple testing devices is relatively large, often requiring a dedicated workshop, which consumes a significant amount of the company's production resources.

[0008] In addition, some companies are planning to use vibratory feeders to automate the loading and unloading of workpieces. However, vibratory feeders have the following drawbacks: 1. Vibratory feeders transmit workpieces via vertical vibration, which poses a significant risk to the appearance and quality of new energy charging gun terminals with precious metal plating on their surfaces.

[0009] 2. Vibratory feeders are specialized, and the conveyor track is customized according to the product's shape, making them unsuitable for production environments that frequently change production lines.

[0010] 3. The vibratory feeder makes noise when it is running, and there is a risk of hearing damage if you stay in this environment for a long time.

[0011] Currently, the industry urgently needs an integrated automated testing device for new energy charging gun terminals that is simple in structure, highly efficient, low in noise, stable and reliable in operation, and easy to switch production lines. Summary of the Invention

[0012] The purpose of this invention is to provide an integrated automated testing device for new energy charging gun terminals that is compact, efficient, low-noise, stable and reliable in operation, and easy to switch production lines, which can greatly save production costs for enterprises.

[0013] The technical solution of this invention is: an integrated automated testing device for new energy charging gun terminals, comprising multiple trays of the same specification for placing new energy charging gun terminals of different specifications (tested, good, and defective), a terminal insertion / extraction force testing device, an inner diameter visual inspection device, an outer diameter visual inspection device, and an oiling device; characterized in that it further comprises a multi-station tray loading and unloading mechanism, a multi-station synchronous terminal testing mechanism, a terminal transfer robot for transporting new energy charging gun terminals between the two mechanisms, and a PLC controller, wherein: The multi-station pallet loading and unloading mechanism includes a longitudinal pallet feeding mechanism and a transverse pallet transport mechanism located above it. The former includes a defective product unloading unit, a good product unloading unit, an inspection product loading unit, and an empty pallet turnover unit arranged side by side. Each unit is equipped with a pallet lifting mechanism, which includes a lifting fixed bracket, a lifting movable bracket driven up and down by a servo lifting drive mechanism located on the lifting fixed bracket, and a pallet carrier located on the lifting movable bracket. The servo lifting drive mechanism in each unit is electrically connected to a PLC controller. The pallet lateral transport mechanism includes a translational fixed bracket, a translational movable bracket driven by a servo translational drive mechanism mounted on the translational fixed bracket, and a suction cup device fixed thereon for picking up the pallet; the servo translational drive mechanism and the suction cup device are both electrically connected to and driven by the PLC controller to transport the empty pallet turnover unit mechanism to the pallet carrier of the defective product unloading unit mechanism or the good product unloading unit mechanism, or to transport the empty pallet on the product loading unit mechanism to the pallet carrier of the empty pallet turnover unit mechanism; The multi-station synchronous terminal testing mechanism includes an installation platform and four testing stations arranged side by side on it. The first and last testing stations are equipped with insertion and extraction force testing devices and oiling devices, respectively, while the two middle testing stations are equipped with inner diameter visual inspection devices and outer diameter visual inspection devices, respectively. It also includes a terminal positioning fixture and a terminal synchronous transport mechanism set on the installation platform. The terminal positioning fixture includes six equally spaced fixture units arranged side by side, namely a loading fixture unit and a unloading fixture unit located at the first and last ends, and four testing fixture units located between the loading fixture unit and the unloading fixture unit, each corresponding to the insertion and extraction force testing device, inner diameter visual inspection device, outer diameter visual inspection device, and oiling device. Each fixture unit includes a base and a terminal carrier that can be detachably fixed on it. The terminal carrier is equipped with a slot for embedding the new energy charging gun terminal. The terminal synchronous transport mechanism includes a swing plate mounted on a guide mechanism. The swing plate is equipped with five feeding fixture units and four detection fixture units, each with a corresponding pneumatic terminal gripper for gripping the new energy charging gun terminals. The terminal synchronous transport mechanism also includes a swing drive device, which drives the swing plate to swing back and forth along the guide mechanism between the first detection station and the last detection station, so as to drive the pneumatic terminal grippers on it to sequentially and synchronously transport the new energy charging gun terminals between adjacent fixture units. The insertion and extraction force testing device, the inner diameter visual inspection device, the outer diameter visual inspection device, the oiling device, the swing drive device, and the pneumatic terminal grippers are all electrically connected to the PLC controller. The terminal transfer robot is also electrically connected to the PLC controller and controlled by it to pick up the new energy charging gun terminals to be tested from the tray in the inspection loading unit and place them onto the loading fixture unit, and to pick up the new energy charging gun terminals from the unloading fixture unit and place them onto the tray in the defective product unloading unit or the good product unloading unit.

[0014] Furthermore, the defective product unloading unit mechanism, the good product unloading unit mechanism, and the product loading unit mechanism described in this invention are all equipped with CCD sensing devices for detecting the full or empty status of their respective trays, and are electrically connected to the PLC controller.

[0015] Furthermore, the lifting movable bracket described in this invention is provided with a horizontal sliding groove, and the pallet carrier is fixed with a slider that cooperates with the sliding groove, so that the pallet carrier can slide horizontally along the sliding groove.

[0016] Furthermore, the pallet lifting mechanism of the present invention also includes a pallet seat movable positioning mechanism disposed on the lifting movable bracket for restricting the pallet seat from sliding horizontally along the slide groove, and the pallet seat movable positioning mechanism is electrically connected to the PLC controller.

[0017] More specifically, the pallet carrier movable positioning mechanism of the present invention includes a telescopic protrusion driven by a telescopic drive device. The telescopic protrusion cooperates with a positioning hole provided on the pallet carrier to restrict the pallet carrier from sliding horizontally along the slide groove. The telescopic drive device is a telescopic motor or a telescopic cylinder electrically connected to the PLC controller. Alternatively, the pallet carrier positioning mechanism may include a flipping block driven by a flipping drive device. The flipping block cooperates with a positioning groove or positioning stop provided on the pallet carrier to restrict the pallet carrier from sliding horizontally along the slide. The flipping drive device is a flipping motor or flipping cylinder electrically connected to the PLC controller.

[0018] Furthermore, the pallet lifting mechanism within each unit of the present invention also includes a pallet clamping mechanism located on the top of the lifting and fixing bracket for laterally clamping the pallet.

[0019] More specifically, the pallet clamping mechanism of the present invention includes a first pallet clamping cylinder and a second pallet clamping cylinder arranged in opposite directions in the horizontal direction. The top rod of the first pallet clamping cylinder is fixed with a first clamping baffle, while the top rod of the second pallet clamping cylinder is fixed with a second clamping baffle opposite to the first clamping baffle, for clamping and fixing the pallet in both front-back or left-right directions. Both the first pallet clamping cylinder and the second pallet clamping cylinder are electrically connected to the PLC controller.

[0020] Furthermore, the suction cup device described in this invention includes a dual-axis cylinder fixed on a translational movable bracket and a suction cup positioning platform driven to rise and fall by the dual-axis cylinder. Multiple suction cups are fixed on the suction cup positioning platform and connected to a vacuum pump via air passage pipes. Both the dual-axis cylinder and the vacuum pump are electrically connected to the PLC controller.

[0021] Furthermore, the servo lifting drive mechanism described in this invention is a servo electric cylinder, a servo hydraulic cylinder, or a linear motor, while the servo translation drive mechanism is also a servo electric cylinder, a servo hydraulic cylinder, or a linear motor.

[0022] Furthermore, the guiding mechanism of the present invention includes a support plate and a transverse plate. The support plate is fixed on the mounting platform, and the transverse plate is slidably mounted on the support plate via a horizontal linear guide rail. The swing plate is slidably mounted on the transverse plate via a vertical linear guide rail. The swing drive device includes a forward and reverse motor, a reducer, and an eccentric wheel. The output shaft of the forward and reverse motor is connected to the central shaft of the eccentric wheel via the reducer, and the eccentric shaft of the eccentric wheel is connected to the swing plate, thereby driving the swing plate to reciprocate along the guiding mechanism. The forward and reverse motor is electrically connected to a PLC controller.

[0023] Furthermore, both the loading and unloading fixture units described in this invention are dual-station fixture units, comprising the base and two terminal carriers detachably fixed thereon, and a base lateral movement cylinder connected to the mounting platform to drive the base lateral movement. This cylinder is used to switch the two terminal carriers on the base to their respective working positions to engage with corresponding pneumatic terminal grippers. The base lateral movement cylinder is electrically connected to the PLC controller. The dual-station design of both the loading and unloading fixture units significantly improves loading and unloading efficiency; it also facilitates synchronization between the execution speed of the terminal synchronous handling mechanism and the execution speed of the terminal transfer robot (i.e., the terminal transfer robot can complete the loading and unloading of two new energy charging gun terminals in the same amount of time), avoiding the terminal transfer robot's single-station loading and unloading speed falling behind the execution speed of the synchronous handling mechanism.

[0024] To avoid interference between the unloading fixture unit and the detection fixture unit corresponding to the oiling device, which would cause the detection fixture unit and its pneumatic terminal gripper above it to interfere with the unloading and gripping action of the terminal transfer robot on the unloading fixture unit, the present invention adopts the following improvement measures: Furthermore, the terminal positioning fixture of the present invention includes seven fixture units arranged side by side at equal intervals, namely a loading fixture unit and a unloading fixture unit located at the beginning and end respectively, four detection fixture units located between the loading fixture unit and the unloading fixture unit corresponding to the insertion and extraction force testing device, the inner diameter visual inspection device, the outer diameter visual inspection device and the oiling device, and a buffer fixture unit located between the unloading fixture unit and the detection fixture unit corresponding to the oiling device, and the swing plate is provided with a pneumatic terminal gripper opposite to the buffer fixture unit.

[0025] The introduction of the buffer fixture unit increases the distance between the unloading fixture unit and the detection fixture unit corresponding to the oiling device, which can effectively prevent the detection fixture unit and its pneumatic terminal gripper from interfering with the unloading and gripping action of the terminal transfer robot on the unloading fixture unit.

[0026] Furthermore, the tooling unit described in this invention also includes an infrared sensing device disposed on the terminal carrier for detecting whether there is a new energy charging gun terminal in the card slot, and the infrared sensing device is electrically connected to the PLC controller.

[0027] Furthermore, the new energy charging gun terminal of the present invention includes a terminal block and a plug-in portion connected to the terminal block via a journal, and a baffle plate is formed in the slot, extending into the outer annular groove of the journal to restrict the movement of the new energy charging gun terminal along the axial direction of the slot.

[0028] Furthermore, the terminal carrier in this invention has a magnetic sheet adhered to its bottom, which is used to fix it to the base by magnetic adsorption. The terminal carrier in this invention is actually made of a high-molecular polymer material, while the base is made of an iron-carbon alloy. Alternatively, the terminal carrier can also be fixed to the base with screws. Both of these positioning methods facilitate quick replacement of the terminal carrier to adapt to the wire replacement detection of different specifications of new energy charging gun terminals.

[0029] Furthermore, the terminal carrier described in this invention has several positioning holes at its bottom, and the base has positioning protrusions that cooperate with the positioning holes.

[0030] Furthermore, the swing plate described in this invention is also equipped with four terminal clamping cylinders, which are respectively configured to correspond one-to-one with the four testing fixture units corresponding to the insertion / extraction force testing device, the inner diameter visual inspection device, the outer diameter visual inspection device, and the oiling device. These cylinders are used to clamp the new energy charging gun terminals into the slots of the terminal carrier. All four terminal clamping cylinders are electrically connected to the PLC controller. When the swing plate moves, the four terminal clamping cylinders reciprocate synchronously with the swing plate.

[0031] The working principle of this invention is as follows: I. Working mode of pallet multi-station loading and unloading mechanism: The multi-station pallet loading and unloading mechanism is used for loading, unloading, and turnover of pallets for products under inspection, good products, and defective products. Similar to known technologies, the pallet for products under inspection (initially fully loaded) is for new energy charging gun terminals to be inspected; the good product pallet (initially empty) is for placing new energy charging gun terminals that have passed inspection; and the defective product pallet (initially empty) is for placing new energy charging gun terminals that have failed inspection. All pallets are of the same specifications. The pallets have arrayed slots for inserting new energy charging gun terminals, and QR codes are printed next to the slots. These QR codes can be scanned to identify, record, or read the inspection data of the new energy charging gun terminals (defective or good) inserted into the corresponding slots.

[0032] Initially, workers open the box and place each pallet onto the pallet carrier at the bottom of the pallet lifting mechanism within the defective product unloading unit, good product unloading unit, product to be inspected loading unit, and empty pallet turnover unit. Then, the device is activated via the control panel, and the pallet lifting mechanism, driven by the PLC controller, raises the pallet carrier to its highest position. The pallet is then clamped and positioned by the pallet clamping mechanism.

[0033] Subsequently, the terminal transfer robot at the front end picks up the product to be inspected from the product tray and sends it to the multi-station synchronous terminal inspection mechanism for inspection. The qualified new energy charging gun terminals are placed in the good product tray, while the unqualified ones are placed in the defective product tray.

[0034] Once the good product pallet is fully loaded, the CCD sensor sends a signal to the PLC controller, which controls the pallet lifting mechanism of the good product unloading unit. The first and second pallet clamping cylinders of the pallet clamping mechanism open, and the pallet carrier lowers the good product pallet to the bottom. Then, the telescopic protrusion of the pallet carrier's movable positioning mechanism retracts, and the worker pulls the pallet carrier out along the slide groove to remove the good product pallet, completing the good product unloading. Subsequently, the pallet carrier is reset to the high position under the control of the PLC controller.

[0035] After the pallet carrier of the above-mentioned good product unloading unit mechanism is reset to the high position, the PLC controller drives the pallet lateral transport mechanism to work, and uses the suction cup device to pick up the empty pallet from the empty pallet turnover unit mechanism and transport it to the pallet carrier of the good product unloading unit mechanism, where it is clamped and fixed by its pallet clamping mechanism.

[0036] Similarly, once the defective product pallet is full, the CCD sensor sends a signal to the PLC controller to control the pallet lifting mechanism of the defective product unloading unit to complete the unloading of defective products and the reset of their pallet seats. The pallet lateral transport mechanism then replenishes the empty pallets.

[0037] When the new energy charging gun terminals in the tray to be inspected are empty, the CCD sensor sends a signal to the PLC controller, which drives the tray lateral transport mechanism to move the translational movable bracket and its suction cup device to the top of the empty tray to be inspected, pick up the empty tray to be inspected, and transport it to the tray carrier of the empty tray turnover unit mechanism.

[0038] Of course, empty pallets on the empty pallet turnover unit mechanism can also be manually replenished and placed, and empty pallets can be stacked on the pallet carrier.

[0039] II. Working mode of the multi-station synchronous testing mechanism for terminals: The terminal transfer robot picks up the new energy charging gun terminals to be inspected from the inspection tray and places them on the loading fixture unit. Similarly, the terminal transfer robot can remove the inspected new energy charging gun terminals from the unloading fixture unit and send them to the good or bad product tray of the multi-station loading and unloading mechanism.

[0040] In actual operation, under the control of the PLC controller, the swing drive device drives the swing plate to swing back and forth along the guide mechanism between the first and last inspection stations, which drives the pneumatic terminal grippers on it to sequentially and synchronously transport the new energy charging gun terminals between adjacent tooling units. The new energy charging gun terminals on the loading tooling unit are transported in sequence and positioned by the terminal clamping cylinder to the corresponding inspection tooling units in front of the insertion and extraction force testing device, the inner diameter visual inspection device, the outer diameter visual inspection device, and the oiling device. The corresponding devices are then activated to sequentially perform the insertion and extraction force test, inner diameter inspection, outer diameter inspection, and oiling operation.

[0041] Similar to known technologies, the test results from the insertion / extraction force testing device, the inner diameter visual inspection device, and the outer diameter visual inspection device are sent to the PLC controller in the form of pulse signals (an NG signal is issued if the test is qualified, and an OK signal is issued if the test is unqualified). If any one of the tests fails, the PLC controller determines that the new energy charging gun terminal is defective and sends a control signal to the connected terminal transfer robot to remove the defective product from the unloading fixture unit and transfer it to the defective product tray. Only when all three test results of the new energy charging gun terminal are OK can it be determined as a good product, and then the terminal transfer robot removes it from the unloading fixture unit and transfers it to the good product tray.

[0042] The PLC controller is connected to an infrared sensor. When the infrared sensor on the terminal carrier of a certain tooling unit detects that there is no new energy charging gun terminal in its slot, it sends a signal to the PLC controller to record the empty detection information and avoid generating incorrect measurement data.

[0043] Of course, the PLC controller can also be connected to an external server or cloud storage device to store and share the detection data of the new energy charging gun terminal with the terminal device.

[0044] The advantages of using the technical solution of this invention are as follows: This invention provides an integrated automated testing device for new energy charging gun terminals. It integrates a multi-station tray loading and unloading mechanism, a multi-station synchronous terminal testing mechanism, and a terminal transfer robot. This device can automatically and efficiently perform loading and unloading operations for new energy charging gun terminals, as well as insertion and extraction force testing, visual inspection of internal and external apertures, and oiling operations. The device has a compact overall structure, high execution efficiency, low operating noise, and stable and reliable operation. It can improve the quality control of new energy charging gun terminals, and its structural design facilitates production line changes. Its specific advantages are detailed below: 1. The multi-station pallet loading and unloading mechanism provided in this invention enables each unit to efficiently and orderly complete the full-load unloading of defective or good product pallets and the replenishment of empty pallets, as well as the loading of inspection pallets and the removal of empty pallets, under the control of CCD sensors and PLC controllers. This ensures that the handling of inspection, defective, and good products for new energy charging gun terminals is synchronized with the multi-station synchronous inspection mechanism in front, resulting in smooth connection and significantly improved production efficiency. Simultaneously, it reduces the workload of workers, decreasing the number of operators required for manual pallet loading and unloading, thereby saving labor costs and reducing enterprise production costs.

[0045] 2. Compared with manual operation, the multi-station pallet loading and unloading mechanism provided in this invention has better accuracy and stability, which can reduce the error operation when manually loading and unloading pallets, thereby improving the pallet placement accuracy of new energy charging gun terminals and thus improving the final inspection quality.

[0046] 3. The multi-station pallet loading and unloading mechanism provided in this invention uses a pallet as the carrier for the new energy charging gun terminals. Both the longitudinal pallet feeding mechanism and the transverse pallet transport mechanism operate smoothly, avoiding severe vibration of the new energy charging gun terminals in the pallet. Compared with conventional vibratory feeder mechanisms, it can eliminate the risk to the appearance quality of new energy charging gun terminals with precious metals plated on their surface.

[0047] 4. The multi-station pallet loading and unloading mechanism provided in this invention uses a pallet as the carrier for the new energy charging gun terminals. The entire mechanism performs loading, unloading, and turnover operations on the pallet. Compared with the conveyor rail in conventional vibratory feeder mechanisms, the pallet can be arbitrarily replaced to adapt to new energy charging gun terminals of different shapes, making it highly adaptable and more suitable for production environments with frequent line changes. Furthermore, pallet molding and manufacturing are very convenient and have low production costs.

[0048] 5. The multi-station pallet loading and unloading mechanism provided in this invention has lower noise compared to conventional vibratory feeder mechanisms.

[0049] 6. The multi-station synchronous detection mechanism for terminals provided in this invention can replace manual labor to complete the synchronous automatic transfer and clamping positioning of new energy charging gun terminals between various detection stations. It has a short transport path and fast execution speed, which can greatly save the detection time of new energy charging gun terminals, improve detection efficiency, reduce the labor intensity of workers, and save labor costs for enterprises.

[0050] 7. The multi-station synchronous detection mechanism for terminals provided in this invention uses tooling units of the same specification to position the terminals of the new energy charging gun. The terminal carriers on it can be quickly replaced relative to the base, which is convenient for adapting to the wire replacement detection of new energy charging gun terminals of different specifications. Moreover, wire replacement does not require replacement or modification of any other mechanism, avoiding re-adjustment, greatly saving wire replacement costs and significantly improving wire replacement efficiency.

[0051] 8. The overall layout of this invention is compact and can be fully integrated into the box, occupying a small volume and being easy to move. Compared with the current multi-detection device integrated line equipment, it does not require a large factory space, saving layout and enterprise production resources.

[0052] 9. The invention has high overall execution precision, good consistency, and higher operational stability and reliability, ensuring that the testing of new energy charging gun terminals in the same batch has consistent high quality control.

[0053] 10. Compared with the current equipment that integrates the testing equipment of each new energy charging gun terminal through a vibratory feeder conveyor mechanism, the present invention reduces the overall cost by more than 35%, and the testing time for the same batch of new energy charging gun terminals can be shortened by nearly 60%. Attached Figure Description

[0054] Figure 1 This is a schematic diagram of the external three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the overall three-dimensional structure of the internal mechanism of the present invention; Figure 3 This is a top view of the overall structure of the internal mechanism of the present invention; Figure 4 This is a schematic diagram of the individual three-dimensional structure of the multi-station pallet loading and unloading mechanism in this invention; Figure 5 for Figure 4 A schematic diagram of the individual three-dimensional structure of the lateral transport mechanism for the medium pallet; Figure 6 for Figure 4 A schematic diagram of the individual three-dimensional structure of the longitudinal feeding mechanism for the middle pallet; Figure 7 This is a three-dimensional structural diagram of the pallet lifting mechanism in the loading state of the present invention (pallet carrier raised to the highest position). Figure 8 This is a three-dimensional structural diagram of the pallet lifting mechanism in the unloading state of the present invention (the pallet carrier is lowered to the lowest position). Figure 9 This is a first lateral view of the unloading state of the pallet lifting mechanism in this invention (the pallet carrier is not pulled out along the slide). Figure 10 This is a second lateral view of the unloading state of the pallet lifting mechanism in this invention (the pallet carrier is pulled out along the slide groove). Figure 11 This is a top view of the multi-station synchronous detection mechanism for terminals in this invention; Figure 12 This is a three-dimensional structural diagram of the terminal multi-station synchronous detection mechanism in this invention; Figure 13 This is a three-dimensional structural diagram of a single tooling unit in this invention; Figure 14 for Figure 13 Schematic diagram of the three-dimensional structure of the intermediate terminal carrier and base assembly; Figure 15 for Figure 13 Schematic diagram of the three-dimensional structure of the mid-terminal carrier reverse side and the magnetic sheet assembly; Figure 16 This is a three-dimensional structural diagram of a special dual-station tooling unit in the tooling unit of the present invention; Figure 17 A three-dimensional structural diagram of the terminals of an existing new energy charging gun; Figure 18 A cross-sectional view of the terminals of a new energy charging gun; Figure 19A cross-sectional view showing the positioning of the new energy charging gun terminals on the terminal carrier.

[0055] In the diagram: A. Pallet multi-station loading and unloading mechanism; B. Terminal multi-station synchronous inspection mechanism; C. Terminal transfer robot; 1. Pallet lateral handling mechanism; 101. Translational fixed bracket; 102. Servo translational drive mechanism; 103. Translational movable bracket; 104. Suction cup device; 104a. Dual-axis cylinder; 104b. Suction cup positioning platform; 104c. Suction cup; 2. Pallet longitudinal feeding mechanism; 201. Defective product unloading unit mechanism; 202. Good product unloading unit mechanism; 203. Product to be inspected. 204. Loading unit mechanism; 3. Empty pallet turnover unit mechanism; 4. Pallet; 301. Pallet to be inspected; 302. Good product pallet; 303. Defective product pallet; 5. Pallet lifting mechanism; 401. Lifting fixed bracket; 402. Servo lifting drive mechanism; 403. Lifting movable bracket; 403a. Slide groove; 404. Pallet carrier; 404a. Positioning hole; 405. Telescopic drive device; 406. Telescopic protrusion; 407. First pallet clamping cylinder; 408. Second pallet clamping cylinder; 409. First clamping baffle; 410. Second clamping baffle; 5. New energy charging gun terminal; 501. Terminal block; 502. Journal shaft; 503. Insertion / removal part; 6. Mounting platform; 7. Insertion / removal force testing device; 8. Inner diameter visual inspection device; 9. Outer diameter visual inspection device; 10. Oiling device; 11. Tooling unit; 1101. Base; 1101a. Positioning protrusion; 1102. Terminal carrier; 1102a. Slot; 1102b. Baffle; 1102c. Positioning hole; 11 03. Base transverse movement cylinder; 1104. Infrared sensor; 1105. Magnetic sheet; 11A. Loading fixture unit; 11B. Unloading fixture unit; 11C. Detection fixture unit; 11D. Buffer fixture unit; 12. Swing plate; 13. Pneumatic terminal gripper; 14. Support plate; 15. Transverse movement plate; 16. Horizontal linear guide rail; 17. Vertical linear guide rail; 18. Forward and reverse motor; 19. Reducer; 20. Eccentric wheel; 21. Terminal clamping cylinder; 22. Housing; 23. Control panel. Detailed Implementation

[0056] Example: Combining Figures 1 to 19 The following is a detailed description of an integrated automated testing device for new energy charging gun terminals provided by the present invention: First, combine Figures 1-3As shown, the integrated testing automation device for the new energy charging gun terminal has an external housing 22 for protecting the internal core structure, which also facilitates the overall transfer of the device. Inside the housing 22 are a tray multi-station loading and unloading mechanism A, a terminal multi-station synchronous testing mechanism B, a terminal transfer robot C for transporting the new energy charging gun terminal 5 between the two mechanisms, and a PLC controller (not shown in the figure).

[0057] We further combined Figures 4-10 The pallet multi-station loading and unloading mechanism A is described, which consists of multiple pallets 3 of the same specification for placing the new energy charging gun terminals 5, the longitudinal pallet feeding mechanism 2, and the transverse pallet transport mechanism 1 located above it.

[0058] like Figures 6-10 As shown, the longitudinal pallet feeding mechanism 2 is composed of a defective product unloading unit mechanism 201, a good product unloading unit mechanism 202, an inspection product loading unit mechanism 203, and an empty pallet turnover unit mechanism 204 arranged side by side. Each unit mechanism is equipped with the same pallet lifting mechanism 4. This pallet lifting mechanism 4 is composed of a lifting fixed bracket 401, a lifting movable bracket 403 driven up and down by a servo lifting drive mechanism 402 on the lifting fixed bracket 401, a pallet carrier 404 on the lifting movable bracket 403, a slide groove 403a on the lifting movable bracket 403, a pallet carrier movable positioning mechanism, and a pallet clamping mechanism.

[0059] In this embodiment, the servo lifting drive mechanism 402 in each of the above-mentioned unit mechanisms are all servo electric cylinders, and all are electrically connected to the PLC controller.

[0060] In this embodiment, the lifting movable support 403 is provided with two horizontal parallel sliding grooves 403a, such as... Figure 8 As shown, the tray carrier 404 is fixed with sliders that respectively cooperate with the two slide grooves 403a, so that the tray carrier 404 can slide horizontally along the slide grooves 403a.

[0061] Specific combination Figures 7-10 As shown, the pallet carrier movable positioning mechanism is mounted on the lifting movable bracket 403 to restrict the pallet carrier 404 from sliding horizontally along the slide groove 403a. This pallet carrier movable positioning mechanism is electrically connected to the PLC controller. The pallet carrier movable positioning mechanism includes a telescopic protrusion 406 driven by a telescopic drive device 405. The telescopic protrusion 406 cooperates with a positioning hole 404a provided on the pallet carrier 404 to restrict the pallet carrier 404 from sliding horizontally along the slide groove 403a. The telescopic drive device 405 is a telescopic cylinder electrically connected to the PLC controller.

[0062] Still combined Figures 7-10 As shown, in this embodiment, the pallet clamping mechanism is located on the top of the lifting and fixing bracket 401 for horizontally clamping the pallet 3. The pallet clamping mechanism in this embodiment includes a first pallet clamping cylinder 407 and a second pallet clamping cylinder 408 arranged horizontally opposite each other. The top rod of the first pallet clamping cylinder 407 is fixed with a first clamping baffle 409, while the top rod of the second pallet clamping cylinder 408 is fixed with a second clamping baffle 410 opposite to the first clamping baffle 409, for clamping and fixing the pallet 3 in the front-back direction. Both the first pallet clamping cylinder 407 and the second pallet clamping cylinder 408 are electrically connected to the PLC controller.

[0063] For example Figure 5 As shown, the pallet lateral transport mechanism 1 in this embodiment is composed of a translational fixed bracket 101, a translational movable bracket 103 driven to move laterally via a servo translational drive mechanism 102 mounted on the translational fixed bracket 101, and a suction cup device 104 fixed thereon for picking up the pallet 3. The servo translational drive mechanism 102 is a servo electric cylinder and is electrically connected to the PLC controller.

[0064] In this embodiment, the suction cup device 104 includes a dual-axis cylinder 104a fixed to the translational movable bracket 103 and a suction cup positioning platform 104b driven to rise and fall by the dual-axis cylinder 104a. Four suction cups 104c are fixed on the suction cup positioning platform 104b. These suction cups 104c are respectively connected to a vacuum pump (not shown in the figure) through air passage pipes. Both the dual-axis cylinder 104a and the vacuum pump are electrically connected to the PLC controller.

[0065] The pallet lateral transport mechanism 1 is used to transport the empty pallet turnover unit mechanism 204 to the pallet carrier 404 of the defective product unloading unit mechanism 201 or the good product unloading unit mechanism 202, or to transport the empty pallet 3 on the product loading unit mechanism 203 to the pallet carrier 404 of the empty pallet turnover unit mechanism 204.

[0066] In this embodiment, the defective product unloading unit 201, the good product unloading unit 202, and the product loading unit 203 are all equipped with CCD sensors (not shown in the figure) for detecting the full or empty status of their respective trays 3, and are electrically connected to the PLC controller.

[0067] Next, let's combine... Figures 11-19 The multi-station synchronous testing mechanism B for terminals is described.

[0068] Firstly, as Figure 11 and Figure 12As shown, this multi-station synchronous terminal inspection mechanism B is composed of an installation platform 6, an insertion and extraction force testing device 7, an inner diameter visual inspection device 8, an outer diameter visual inspection device 9, an oiling device 10, as well as terminal positioning fixtures and a terminal synchronous handling mechanism.

[0069] The installation platform 6 has four testing stations arranged side by side. In this embodiment, the insertion and extraction force testing device 7 and the oiling device 10 are respectively set at the first and last testing stations, while the inner diameter visual inspection device 8 and the outer diameter visual inspection device 9 are arranged sequentially at the two middle testing stations.

[0070] Still combined Figure 11 and Figure 12 As shown, the terminal positioning fixture in this embodiment consists of seven equally spaced fixture units 11 arranged side by side. These include a loading fixture unit 11A and a unloading fixture unit 11B located at the beginning and end of the fixture, respectively; four detection fixture units 11C located between the loading fixture unit 11A and the unloading fixture unit 11B, corresponding to the insertion / extraction force testing device 7, the inner diameter visual inspection device 8, the outer diameter visual inspection device 9, and the oiling device 10; and a buffer fixture unit 11D located between the unloading fixture unit 11B and the detection fixture unit 11C corresponding to the oiling device 10.

[0071] The terminal synchronous transport mechanism includes a swing plate 12 mounted on a guide mechanism. The swing plate 12 has five loading fixture units 11A, four detection fixture units 11C, and a buffer fixture unit 11D, each corresponding to a pneumatic terminal gripper 13 for clamping the new energy charging gun terminals 5. The terminal synchronous transport mechanism also includes a swing drive device, which drives the swing plate 12 to reciprocate along the guide mechanism between the first and last detection stations, thereby causing the pneumatic terminal grippers 13 to sequentially and synchronously transport the new energy charging gun terminals 5 between adjacent fixture units 11. The insertion / extraction force testing device 7, the inner diameter visual inspection device 8, the outer diameter visual inspection device 9, the oiling device 10, the swing drive device, and the pneumatic terminal grippers 13 are all electrically connected to a PLC controller.

[0072] Further integration Figures 13-15 As shown, in this embodiment, the four detection fixture units 11C and buffer fixture unit 11D are all single-station fixture units, each having a base 1101 and a terminal carrier 1102 detachably fixed thereon. The terminal carrier 1102 is provided with a slot 1102a for embedding the new energy charging gun terminal 5. Furthermore, the terminal carrier 1102 is also provided with an infrared sensor 1104 for detecting whether the new energy charging gun terminal 5 is present in the slot 1102a. This infrared sensor 1104 is electrically connected to the PLC controller.

[0073] In this embodiment, the terminal carrier 1102 is made of a high-molecular polymer material, while the base 1101 is made of an iron-carbon alloy. Multiple magnetic sheets 1105 are adhered to the bottom of the terminal carrier 1102, which are then attracted and fixed to the base 1101, allowing for quick removal from the base 1101. This facilitates rapid replacement of the terminal carrier 1102 to adapt to the wiring detection of different specifications of new energy charging gun terminals 5.

[0074] Meanwhile, in this embodiment, the bottom of the terminal carrier 1102 is provided with a plurality of positioning holes 1102c, and the base 1101 is provided with positioning protrusions 1101a that cooperate with these positioning holes 1102c, so as to enable the terminal carrier 1102 to be quickly positioned when it is adsorbed and fixed.

[0075] Further integration Figures 17-19 As shown, the new energy charging gun terminal 5, like conventional technology, includes a terminal block 501 and a plug-in portion 503 connected to the terminal block 501 via a journal 502. A baffle 1102b is formed in the slot 1102a, extending into the outer annular groove of the journal 502 to restrict the new energy charging gun terminal 5 from moving axially along the slot 1102a.

[0076] Combined Figure 11 , Figure 12 and Figure 16 As shown, in this embodiment, both the loading fixture unit 11A and the unloading fixture unit 11B are dual-station fixture units. Each unit has a base 1101 and two terminal carriers 1102 detachably fixed to it side-by-side. It also includes a base lateral movement cylinder 1103 mounted on the mounting platform 6, which drives the base 1101 to move laterally. This cylinder switches the two terminal carriers 1102 on the base 1101 to their respective working positions to engage with the corresponding pneumatic terminal grippers 13. The base lateral movement cylinder 1103 is electrically connected to the PLC controller. The fixing method between the terminal carriers 1102 and the base 1101 is the same as that of the single-station fixture unit described above and will not be repeated. Similarly, both terminal carriers 1102 of this dual-station fixture unit are equipped with infrared sensors 1104 for detecting whether a new energy charging gun terminal 5 is present in the corresponding slot 1102a. These infrared sensors 1104 are also electrically connected to the PLC controller.

[0077] Recombined Figure 11 and Figure 12As shown, the guiding mechanism in this embodiment includes a support plate 14 and a transverse plate 15. The support plate 14 is fixed on the mounting platform 6. The transverse plate 15 is slidably mounted on the support plate 14 via a horizontal linear guide rail 16, while the swing plate 12 is slidably mounted on the transverse plate 15 via a vertical linear guide rail 17. The swing drive device includes a forward and reverse motor 18, a reducer 19, and an eccentric wheel 20. The output shaft of the forward and reverse motor 18 is connected to the central shaft of the eccentric wheel 20 via the reducer 19, and the eccentric shaft of the eccentric wheel 20 is connected to the swing plate 12, thereby driving the swing plate 12 to reciprocate along the guiding mechanism. The forward and reverse motor 18 is electrically connected to the PLC controller.

[0078] In this embodiment, the swing plate 12 is also provided with four terminal clamping cylinders 21, which are respectively set in one-to-one correspondence with the four detection tooling units 11D corresponding to the insertion and extraction force testing device 7, the inner diameter visual inspection device 8, the outer diameter visual inspection device 9 and the oiling device 10, and are used to clamp the new energy charging gun terminal 5 into the slot 1102a of the terminal carrier 1102. All four terminal clamping cylinders 21 are electrically connected to the PLC controller.

[0079] Back to Figure 2 and Figure 3 As shown, in this embodiment, the terminal transfer robot C is also electrically connected to the PLC controller and is controlled by the PLC to pick up the new energy charging gun terminals 5 to be inspected from the tray 3 in the product loading unit mechanism and place them onto the loading fixture unit 11A, and to pick up the new energy charging gun terminals 5 from the unloading fixture unit 11B and place them into the tray 3 of the defective product unloading unit mechanism 201 or the good product unloading unit mechanism 202. In this embodiment, the terminal transfer robot C can simultaneously grip two new energy charging gun terminals 5, so as to perform dual-station loading and unloading operations with the loading fixture unit 11A and the unloading fixture unit 11B.

[0080] Combined Figures 1-19 As shown, the working principle of the present invention is explained as follows: I. Working mode of pallet multi-station loading and unloading mechanism: The multi-station pallet loading and unloading mechanism A is used for loading, unloading, and turnover between the inspection pallet 301, the good product pallet 302, and the defective product pallet 303. Similar to known technologies, the inspection pallet 301 (initially fully loaded) is used for the new energy charging gun terminals 5 to be inspected; the good product pallet 302 (initially empty) is used for placing the qualified new energy charging gun terminals 5; and the defective product pallet 303 (initially empty) is used for placing the unqualified new energy charging gun terminals 5. All pallets 3 have the same specifications. Furthermore, each pallet 3 has an array of slots for inserting the new energy charging gun terminals 5, and a QR code is printed next to each slot. This QR code can be scanned to identify, record, or read the inspection data information of the new energy charging gun terminals 5 (defective or good) inserted into the corresponding slot.

[0081] Initially, the worker opens the box 22 and places each pallet 3 onto the pallet carrier 404 at the bottom of the pallet lifting mechanism 4 in the defective product unloading unit 201, good product unloading unit 202, product loading unit 203, and empty pallet turnover unit 204. Then, the device is started through the control panel 23. Driven by the PLC controller, the pallet lifting mechanism 4 works to raise the pallet carrier 404 to the highest position, and then the pallet clamping mechanism clamps and positions the pallet 3.

[0082] Subsequently, the terminal transfer robot C at the front end grabs the product to be inspected from the product tray 301 and sends it to the terminal multi-station synchronous inspection mechanism B for inspection. The qualified new energy charging gun terminal 5 is placed in the good product tray 302, while the unqualified one is placed in the defective product tray 303.

[0083] Once the good product pallet 302 is fully loaded, the CCD sensor sends a signal to the PLC controller, controlling the pallet lifting mechanism 4 of the good product unloading unit 202. The first pallet clamping cylinder 407 and the second pallet clamping cylinder 408 of the pallet clamping mechanism open, and the pallet carrier 404 carrying the good product pallet 302 descends to the bottom. Then, the telescopic protrusion 406 of the pallet carrier movable positioning mechanism retracts, and the worker pulls the pallet carrier 404 out along the slide 403a to remove the good product pallet 302, completing the good product unloading. Subsequently, the pallet carrier 404 is reset to the high position under the control of the PLC controller.

[0084] After the pallet carrier 404 of the above-mentioned good product unloading unit mechanism 202 is reset to the high position, the PLC controller drives the pallet lateral transport mechanism to work, and the suction cup device 104 picks up the empty pallet 3 from the empty pallet turnover unit mechanism 204 and transports it to the pallet carrier 404 of the good product unloading unit mechanism 202, where it is clamped and fixed by its pallet clamping mechanism.

[0085] Similarly, once the defective product pallet 303 is fully loaded, the CCD sensor sends a signal to the PLC controller to control the pallet lifting mechanism 4 of the defective product unloading unit 201 to work, complete the unloading of defective products and reset its pallet carrier 404, and replenish it with empty pallets 3 by the pallet lateral transport mechanism 1.

[0086] When the new energy charging gun terminal 5 in the inspection tray 301 is empty, the CCD sensor sends a signal to the PLC controller, which drives the tray lateral transport mechanism 1 to move the translational movable bracket 103 and its suction cup device 104 above the empty inspection tray 301, picks up the empty inspection tray 301, and transports it to the tray carrier 404 of the empty tray turnover unit mechanism 204.

[0087] Of course, empty pallets 3 on the empty pallet turnover unit mechanism 204 can also be manually replenished and placed, and empty pallets 3 can be stacked on the pallet carrier 404.

[0088] II. Working mode of the multi-station synchronous testing mechanism for terminals: Terminal transfer robot C picks up the new energy charging gun terminal 5 to be inspected from the inspection tray 301 and places it on the loading fixture unit 11A. Similarly, the terminal transfer robot C can remove the inspected new energy charging gun terminal 5 from the unloading fixture unit 11B and send it to the good product tray 302 or the defective product tray 303 of the multi-station loading and unloading mechanism A.

[0089] In actual operation, under the control of the PLC controller, the swing drive device drives the swing plate 12 to swing back and forth along the guide mechanism between the first detection station and the last detection station, which drives the pneumatic terminal grippers 13 on it to sequentially and synchronously transport the new energy charging gun terminals 5 between adjacent tooling units 11. The new energy charging gun terminals 5 on the loading tooling unit 11A are transported in sequence and positioned by the terminal clamping cylinder 21 onto the corresponding detection tooling unit 11C in front of the insertion and extraction force testing device 7, the inner diameter visual inspection device 8, the outer diameter visual inspection device 9 and the oiling device 10. The corresponding devices are then activated to sequentially perform the insertion and extraction force test, inner diameter inspection, outer diameter inspection and oiling operation.

[0090] Similar to known technologies, the detection results of the insertion / extraction force testing device 7, the inner diameter visual inspection device 8, and the outer diameter visual inspection device 8 are sent to the PLC controller in the form of pulse signals (an NG signal is issued if the detection is qualified, and an OK signal is issued if the detection is unqualified). If any one of the detections fails, the PLC controller can determine that the new energy charging gun terminal 5 is defective, and thus send a control signal to the connected terminal transfer robot C to remove the defective product from the unloading fixture unit 11B and transfer it to the defective product tray 303. Only when all three detection results of the new energy charging gun terminal 5 are OK can it be determined as a good product, and then the terminal transfer robot C removes it from the unloading fixture unit 11B and transfers it to the good product tray 302.

[0091] The PLC controller is connected to the infrared sensor 1104. When the infrared sensor 1104 on the terminal carrier 1102 of a certain tooling unit 11 detects that there is no new energy charging gun terminal 5 in its slot 1102b, it sends a signal to the PLC controller to record the empty detection information and avoid generating incorrect measurement data.

[0092] Of course, the PLC controller can also be connected to an external server or cloud storage device to store and share the detection data of the new energy charging gun terminal 5 with the terminal device.

[0093] Of course, the above are merely specific application examples of the present invention and do not constitute any limitation on the scope of protection of the present invention. In addition to the above embodiments, the present invention may have other implementations. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by the present invention.

Claims

1. An integrated automated testing device for new energy charging gun terminals, comprising multiple trays (3) of the same specification for placing new energy charging gun terminals (5) of different specifications (good, defective, and unsatisfactory), a insertion / extraction force testing device (7) for the new energy charging gun terminals (5), an inner diameter visual inspection device (8), an outer diameter visual inspection device (9), and an oiling device (10), characterized in that... It also includes a multi-station pallet loading and unloading mechanism (A), a multi-station synchronous detection mechanism for terminals (B), and a terminal transfer robot (C) for transporting the new energy charging gun terminals (5) between the two mechanisms, as well as a PLC controller, wherein: The pallet multi-station loading and unloading mechanism (A) includes a pallet longitudinal feeding mechanism (2) and a pallet transverse transport mechanism (1) located above it. The former includes a defective product unloading unit mechanism (201), a good product unloading unit mechanism (202), an inspection product loading unit mechanism (203), and an empty pallet turnover unit mechanism (204) arranged side by side. Each unit mechanism is equipped with a pallet lifting mechanism (4). This pallet lifting mechanism (4) includes a lifting fixed bracket (401), a lifting movable bracket (403) driven up and down by a servo lifting drive mechanism (402) located on the lifting fixed bracket (401), and a pallet carrier (404) located on the lifting movable bracket (403). The servo lifting drive mechanism (402) in each unit mechanism is electrically connected to the PLC controller. The pallet lateral transport mechanism (1) includes a translation fixed bracket (101), a translation movable bracket (103) driven to move laterally via a servo translation drive mechanism (102) mounted on the translation fixed bracket (101), and a suction cup device (104) fixed thereon for picking up the pallet (3). The servo translation drive mechanism (102) and the suction cup device (104) are both electrically connected to and driven by the PLC controller to transport the empty pallet turnover unit mechanism (204) to the pallet carrier (404) of the defective product unloading unit mechanism (201) or the good product unloading unit mechanism (202), or to transport the empty pallet (3) on the inspection product loading unit mechanism (203) to the pallet carrier (404) of the empty pallet turnover unit mechanism (204). The multi-station synchronous inspection mechanism (B) for terminals includes an installation platform (6) and four inspection stations arranged side by side on it. The first and last inspection stations are equipped with insertion and extraction force testing devices (7) and oiling devices (10), respectively. The two middle inspection stations are equipped with inner diameter visual inspection devices (8) and outer diameter visual inspection devices (9), respectively. It also includes terminal positioning fixtures and terminal synchronous transport mechanisms set on the installation platform (6). The terminal positioning fixtures include six equally spaced fixture units (11) arranged side by side, which are loading fixture units located at the first and last ends, respectively. 11A) and unloading fixture unit (11B), and four inspection fixture units (11C) located between loading fixture unit (11A) and unloading fixture unit (11B) corresponding to insertion and extraction force testing device (7), inner diameter visual inspection device (8), outer diameter visual inspection device (9) and oiling device (10); each fixture unit (11) includes a base (1101) and a terminal carrier (1102) detachably fixed thereon, and the terminal carrier (1102) is provided with a slot (1102a) for embedding the new energy charging gun terminal (5); The terminal synchronous transport mechanism includes a swing plate (12) on the guide mechanism. The swing plate (12) is provided with five feeding tooling units (11A) and four detection tooling units (11C) located below it, and pneumatic terminal grippers (13) for gripping the new energy charging gun terminals (5) on it. The terminal synchronous transport mechanism also includes a swing drive device. The swing drive device is used to drive the swing plate (12) to swing back and forth along the guide mechanism between the first detection station and the last detection station, so as to drive the pneumatic terminal grippers (13) on it to sequentially and synchronously transport the new energy charging gun terminals (5) between adjacent tooling units (11). The insertion and extraction force testing device (7), the inner diameter visual inspection device (8), the outer diameter visual inspection device (9), the oiling device (10), the swing drive device and the pneumatic terminal grippers (13) are all electrically connected to the PLC controller. The terminal transfer robot (C) is also electrically connected to the PLC controller and controlled by it to pick up the new energy charging gun terminal (5) to be tested in the tray (3) of the product loading unit mechanism and put it onto the loading fixture unit (11A), and to pick up the new energy charging gun terminal (5) of the unloading fixture unit (11B) and put it into the tray (3) of the defective product unloading unit mechanism (201) or the good product unloading unit mechanism (202).

2. The integrated automated testing device for new energy charging gun terminals according to claim 1, characterized in that... The defective product unloading unit (201), the good product unloading unit (202), and the product loading unit (203) are all equipped with CCD sensors for detecting whether their respective trays (3) are full or empty, and are electrically connected to the PLC controller.

3. The integrated automated testing device for new energy charging gun terminals according to claim 1, characterized in that... The lifting support (403) is provided with a horizontal slide groove (403a), and the pallet carrier (404) is fixed with a slider that cooperates with the slide groove (403a), so that the pallet carrier (404) can slide horizontally along the slide groove (403a).

4. The integrated automated testing device for new energy charging gun terminals according to claim 3, characterized in that... The pallet lifting mechanism (4) further includes a pallet carrier movable positioning mechanism disposed on the lifting movable support (403) for limiting the horizontal sliding of the pallet carrier (404) along the slide groove (403a), which is electrically connected to the PLC controller.

5. An integrated automated testing device for new energy charging gun terminals according to claim 4, characterized in that... The pallet carrier movable positioning mechanism includes a telescopic protrusion (406) driven by a telescopic drive device (405). The telescopic protrusion (406) cooperates with a positioning hole (404a) provided on the pallet carrier (404) to restrict the pallet carrier (404) from sliding horizontally along the slide groove (403a). The telescopic drive device (405) is a telescopic motor or telescopic cylinder electrically connected to the PLC controller. Alternatively, the pallet carrier positioning mechanism may include a flipping block driven by a flipping drive device, which cooperates with a positioning groove or positioning stop provided on the pallet carrier (404) to restrict the pallet carrier (404) from sliding horizontally along the slide. The flipping drive device may be a flipping motor or a flipping cylinder electrically connected to the PLC controller.

6. An integrated automated testing device for new energy charging gun terminals according to claim 1, characterized in that... The pallet lifting mechanism (4) also includes a pallet clamping mechanism located on top of the lifting fixed bracket (401) for laterally clamping the pallet (3).

7. An integrated automated testing device for new energy charging gun terminals according to claim 6, characterized in that... The pallet clamping mechanism includes a first pallet clamping cylinder (407) and a second pallet clamping cylinder (408) arranged in opposite directions in the horizontal direction. The first pallet clamping cylinder (407) has a first clamping baffle (409) fixed on its top rod, while the second pallet clamping cylinder (408) has a second clamping baffle (410) fixed on its top rod opposite to the first clamping baffle (409), which is used to clamp and fix the pallet (3) in the front-back or left-right directions. Both the first pallet clamping cylinder (407) and the second pallet clamping cylinder (408) are electrically connected to the PLC controller.

8. An integrated automated testing device for new energy charging gun terminals according to claim 1, characterized in that... The suction cup device (104) includes a dual-axis cylinder (104a) fixed on a translational movable bracket (103) and a suction cup positioning platform (104b) driven to rise and fall by the dual-axis cylinder (104a). Multiple suction cups (104c) are fixed on the suction cup positioning platform (104b) and connected to a vacuum pump via an air pipeline. Both the dual-axis cylinder (104a) and the vacuum pump are electrically connected to the PLC controller.

9. An integrated automated testing device for new energy charging gun terminals according to claim 1, characterized in that... The servo lifting drive mechanism (402) is a servo electric cylinder, a servo hydraulic cylinder, or a linear motor, while the servo translation drive mechanism (102) is also a servo electric cylinder, a servo hydraulic cylinder, or a linear motor.

10. An integrated automated testing device for new energy charging gun terminals according to claim 1, characterized in that... The guiding mechanism includes a support plate (14) and a transverse plate (15). The support plate (14) is fixed on the mounting platform (6). The transverse plate (15) is slidably mounted on the support plate (14) via a horizontal linear guide rail (16). The swing plate (12) is slidably mounted on the transverse plate (15) via a vertical linear guide rail (17). The swing drive device includes a forward and reverse motor (18), a reducer (19), and an eccentric wheel (20). The output shaft of the forward and reverse motor (18) is connected to the central shaft of the eccentric wheel (20) via the reducer (19). The eccentric shaft of the eccentric wheel (20) is connected to the swing plate (12), thereby driving the swing plate (12) to swing back and forth along the guiding mechanism. The forward and reverse motor (18) is electrically connected to the PLC controller.

11. An integrated automated testing device for new energy charging gun terminals according to claim 1, characterized in that... The loading fixture unit (11A) and unloading fixture unit (11B) are both dual-station fixture units, which include the base (1101) and two terminal carriers (1102) that are detachably fixed on it. They also include a base transverse cylinder (1103) connected to the mounting platform (6) to drive the base (1101) to move laterally. This cylinder is used to switch the two terminal carriers (1102) on the base (1101) to the working position to cooperate with the corresponding pneumatic terminal gripper (13). The base transverse cylinder (1103) is electrically connected to the PLC controller.

12. An integrated automated testing device for new energy charging gun terminals according to claim 1, characterized in that... The terminal positioning fixture includes seven equally spaced fixture units (6) arranged side by side, namely a loading fixture unit (11A) and a unloading fixture unit (11B) located at the beginning and end respectively, four detection fixture units (11C) located between the loading fixture unit (11A) and the unloading fixture unit (11B) corresponding to the insertion and extraction force testing device (2), the inner diameter visual inspection device (8), the outer diameter visual inspection device (9) and the oiling device (10), and a buffer fixture unit (11D) located between the unloading fixture unit (11B) and the detection fixture unit (11C) corresponding to the oiling device (10), and the swing plate (12) is provided with a pneumatic terminal gripper (13) opposite to the buffer fixture unit (11D).

13. An integrated automated testing device for new energy charging gun terminals according to claim 1, characterized in that... The tooling unit (11) also includes an infrared sensing device (1104) disposed on the terminal carrier (1102) for detecting whether there is a new energy charging gun terminal (5) in the card slot (1102a). The infrared sensing device (1104) is electrically connected to the PLC controller.

14. An integrated automated testing device for new energy charging gun terminals according to claim 1, characterized in that... The new energy charging gun terminal (5) includes a terminal block (501) and a plug-in portion (503) connected to the terminal block (501) via a journal (502). A baffle (1102b) is formed in the slot (1102a) and extends into the outer annular groove of the journal (502) to restrict the new energy charging gun terminal (5) from moving axially along the slot (1102a).

15. An integrated automated testing device for new energy charging gun terminals according to claim 1, characterized in that... A magnetic sheet (1105) is bonded to the bottom of the terminal carrier (1102), and is fixed to the base (1101) by adsorption of the magnetic sheet (1105); or the terminal carrier (1102) is fixed to the base (1101) by screws.

16. An integrated automated testing device for new energy charging gun terminals according to claim 1, characterized in that... The terminal carrier (1102) has several positioning holes (1102c) at its bottom, and the base (1101) has positioning protrusions (1101a) that cooperate with the positioning holes (1102c).

17. An integrated automated testing device for new energy charging gun terminals according to claim 1, characterized in that... The swing plate (12) is also equipped with four terminal clamping cylinders (21), which are respectively set in correspondence with the four detection tooling units (11D) of the insertion and extraction force testing device (7), the inner diameter visual inspection device (8), the outer diameter visual inspection device (9) and the oiling device (10), and are used to clamp the new energy charging gun terminal (5) into the slot (1102a) of the terminal carrier (1102) where it is located. All four terminal clamping cylinders (21) are electrically connected to the PLC controller.

18. An integrated automated testing device for new energy charging gun terminals according to claim 1, characterized in that... It also includes a housing (22), in which the multi-station pallet loading and unloading mechanism (A), the multi-station terminal synchronous detection mechanism (B), the terminal transfer robot (C) and the PLC controller are all fixed inside the housing (22), and a control screen (23) is embedded in the housing (22), which is electrically connected to the PLC controller.

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