Multi-station feeding and discharging mechanism for terminal tray of new energy charging gun

Abstract

The utility model discloses a multi-station feeding and discharging mechanism for new energy charging gun terminal trays, which comprises a plurality of trays with the same specification for placing products to be detected, good products and defective products of new energy charging gun terminals, and is characterized by further comprising a tray longitudinal feeding mechanism and a tray transverse carrying mechanism arranged above the tray longitudinal feeding mechanism, the automatic feeding device comprises a defective product discharging unit mechanism, a non-defective product discharging unit mechanism, a to-be-detected product feeding unit mechanism and an empty tray turnover unit mechanism which are arranged side by side, and each unit mechanism is provided with a tray lifting mechanism used for driving a corresponding tray carrying base to ascend and descend up and down. The tray transverse carrying mechanism drives a translation movable bracket to drive a suction cup device to translate through a servo translation driving mechanism; and the tray carrying unit mechanism is used for carrying empty trays on the empty tray turnover unit mechanism to a tray carrying seat of the defective product discharging unit mechanism or the good product discharging unit mechanism, or carrying empty trays on the to-be-detected product feeding unit mechanism to a tray carrying seat of the empty tray turnover unit mechanism. The utility model has the advantages of compact structure, high efficiency, low noise and more stable and reliable operation.

Description

Technical Field

[0001] The utility model relates to a multi-station loading and unloading mechanism for a new energy charging gun terminal tray. Background Art

[0002] At present, the industry needs to conduct inspections (including insertion and extraction force test and aperture test, etc.) for processed new energy charging gun terminals. After inspection, defective products are eliminated and good products are left, thereby improving product quality. In the above inspection process, in order to facilitate the batch transfer of new energy charging gun terminals, in the known technology, whether it is the uninspected products, defective products or good products of new energy charging gun terminals, they are loaded on pallets, and then manually loaded and unloaded on the corresponding pallets at the inspection equipment station.

[0003] In actual operation, the pallet containing the new energy charging gun terminals to be tested (hereinafter referred to as the products to be tested) is first transported to the testing equipment manually, and then the robot arm of the testing equipment grabs the products to be tested from the pallet for testing. The qualified new energy charging gun terminals are placed in the good product pallet, and the unqualified ones are placed in the defective product pallet. When the good product pallet or the defective product pallet is full, it is manually unloaded and an empty good product pallet or defective product pallet is placed; the empty pallet for testing also needs to be removed, and then a new pallet full of products to be tested is placed.

[0004] Obviously, the shortcomings of manual loading and unloading operations for the terminal tray of new energy charging guns are also obvious as mentioned above:

[0005] 1. The labor intensity of workers is high, but the efficiency is low. Due to the differences in personnel operations, the pallet placement speed often cannot keep up with the operating speed of the inspection equipment, which greatly limits the improvement of equipment production efficiency;

[0006] 2. High labor costs increase the production costs of enterprises;

[0007] 3. It is easy to make mistakes in operation. For example, for products to be inspected that have requirements for placement direction, personnel may operate in the opposite direction, resulting in defects in subsequent processes or other abnormal situations.

[0008] For this reason, some companies are currently planning to use vibration plates to directly automate the loading and unloading of workpieces. However, the defects of vibration plates are as follows:

[0009] 1. The vibration plate transfers the workpiece by vertical vibration, which poses a great risk to the appearance quality of new energy charging gun terminals plated with precious metals.

[0010] 2. The vibration plate is specialized and the transmission track is customized according to the product shape, which cannot be applied to the production environment where the line is frequently changed.

[0011] 3. The vibration plate makes noise when running. If you stay in this environment for a long time, there is a risk of hearing damage.

[0012] At present, the industry is in urgent need of a multi-station loading and unloading mechanism for a new energy charging gun terminal tray with a compact structure, high efficiency, low noise and more stable and reliable operation. Summary of the invention

[0013] The purpose of the utility model is to provide a multi-station loading and unloading mechanism for a new energy charging gun terminal tray with a compact structure, high efficiency, low noise and more stable and reliable operation in response to the existing technical defects involved in the background technology.

[0014] The technical solution of the utility model is: a multi-station loading and unloading mechanism for a new energy charging gun terminal tray, comprising a plurality of trays of the same specifications for placing the uninspected products, good products and defective products of the new energy charging gun terminals respectively, characterized in that it also includes a tray longitudinal feeding mechanism and a tray transverse transport mechanism arranged above it, the former includes a defective product unloading unit mechanism, a good product unloading unit mechanism, an uninspected product loading unit mechanism and an empty tray turnover unit mechanism arranged side by side, each unit mechanism is provided with a tray lifting mechanism, and the tray lifting mechanism includes a lifting fixed bracket, a lifting movable bracket driven up and down by a servo lifting drive mechanism arranged on the lifting fixed bracket, and a tray carrier arranged on the lifting movable bracket; the servo lifting drive mechanism in each unit mechanism is electrically connected to the PLC controller;

[0015] The pallet transverse transport mechanism includes a translational fixed bracket, a translational movable bracket driven for transverse translation movement by a servo translational drive mechanism arranged on the translational fixed bracket, and a suction cup device fixed thereon for sucking the pallet; the servo translational drive mechanism and the suction cup device are both electrically connected to the PLC controller and driven by it to transport the empty pallet on 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 to-be-inspected product loading unit mechanism to the pallet carrier of the empty pallet turnover unit mechanism.

[0016] Furthermore, the defective product unloading unit mechanism, the good product unloading unit mechanism and the inspected product loading unit mechanism described in the utility model are all provided with a CCD sensor device for detecting the full or empty state of their corresponding trays, and are electrically connected to the PLC controller.

[0017] Furthermore, the lifting movable bracket in the utility model is provided with a horizontal slide groove, and a sliding block cooperating with the slide groove is fixed on the tray carrier, so that the tray carrier can slide horizontally along the slide groove.

[0018] Furthermore, the pallet lifting mechanism in the utility model also includes a pallet carrier movable positioning mechanism arranged on the lifting movable bracket for limiting the horizontal sliding of the pallet carrier along the slide groove, and the pallet carrier movable positioning mechanism is electrically connected to the PLC controller.

[0019] More specifically, the movable positioning mechanism of the pallet carrier in the utility model includes a telescopic boss driven by a telescopic driving device, the telescopic boss cooperates with a positioning hole provided on the pallet carrier to limit the pallet carrier from sliding horizontally along the slide groove, and the telescopic driving device is a telescopic motor or a telescopic cylinder electrically connected to the PLC controller;

[0020] Alternatively, the pallet carrier positioning mechanism includes a flip block driven by a flip drive device, which cooperates with a positioning groove or a positioning block provided on the pallet carrier to limit the horizontal sliding of the pallet carrier along the slide groove. The flip drive device is a flip motor or a flip cylinder electrically connected to the PLC controller.

[0021] Furthermore, the pallet lifting mechanism in each unit mechanism of the utility model also includes a pallet clamping mechanism disposed on the top of the lifting and fixing bracket for horizontally clamping the pallet.

[0022] More specifically, the pallet clamping mechanism described in the utility model includes a first pallet clamping cylinder and a second pallet clamping cylinder arranged opposite to each other in a horizontal direction, the top rod of the first pallet clamping cylinder is fixed with a first clamping baffle, and the top rod of the second pallet clamping cylinder is fixed with a second clamping baffle opposite to the first clamping baffle, which are used to clamp and fix the pallet in the front and back or left and right directions, and the first pallet clamping cylinder and the second pallet clamping cylinder are both electrically connected to the PLC controller.

[0023] Furthermore, the suction cup device described in the utility model includes a double-axis cylinder fixed on a translationally movable bracket and a suction cup positioning platform driven to rise and fall by the double-axis cylinder. A plurality of suction cups are fixed on the suction cup positioning platform and are connected to a vacuum pump via an air pipeline. Both the double-axis cylinder and the vacuum pump are electrically connected to the PLC controller.

[0024] Furthermore, the servo lifting drive mechanism described in the utility model is a servo electric cylinder or a servo hydraulic cylinder or a linear motor, and the servo translation drive mechanism is also a servo electric cylinder, a servo hydraulic cylinder or a linear motor.

[0025] The working principle of the utility model is as follows:

[0026] The utility model is mainly used in conjunction with the existing detection equipment for new energy charging gun terminals, and is used for loading and unloading and turnover between the pallet of products to be inspected, the pallet of good products and the pallet of defective products. Like the known technology, the pallet of products to be inspected (fully loaded at the beginning) is a pallet for the new energy charging gun terminals to be inspected, the pallet of good products (empty at the beginning) is a pallet for placing new energy charging gun terminals that have passed the inspection, and the pallet of defective products (empty at the beginning) is a pallet for placing new energy charging gun terminals that have failed the inspection. The specifications of these pallets are the same. The pallet is provided with an array of embedded slots for the new energy charging gun terminals to be installed, and a QR code is printed next to the embedded slot, which can be identified and recorded or read by a code scanning device. The detection data information of the new energy charging gun terminals (defective or good products) installed in the corresponding embedded slot.

[0027] Initially, workers place each pallet on the pallet carrier at the bottom of the pallet lifting mechanism in the defective product unloading unit mechanism, the good product unloading unit mechanism, the inspected product loading unit mechanism and the empty pallet turnover unit mechanism. Then, driven by the PLC controller, the pallet lifting mechanism works to raise the pallet carrier to the highest position, and then the pallet is clamped and positioned through the pallet clamping mechanism.

[0028] Then the robot arm of the front-end inspection equipment grabs the products to be inspected from the inspection tray 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.

[0029] When the good product pallet is fully loaded, the manual control or CCD sensor sends a signal to the PLC controller to control the pallet lifting mechanism of the good product unloading unit mechanism, the first pallet clamping cylinder and the second pallet clamping cylinder of the pallet clamping mechanism are opened, and the pallet carrier with the good product pallet is lowered to the bottom, and then the telescopic boss of the pallet carrier movable positioning mechanism is retracted, and the worker pulls the pallet carrier out along the slide slot, removes the good product pallet and completes the good product unloading. Then the pallet carrier is reset to the high position under the PLC controller.

[0030] After the pallet carrier of the good product unloading unit mechanism is reset to the high position, the PLC controller drives the pallet transverse transport mechanism to work, sucks the empty pallet from the empty pallet turnover unit mechanism through the suction cup device, and transports it to the pallet carrier of the good product unloading unit mechanism, and is clamped and fixed by its pallet clamping mechanism.

[0031] Similarly, when the defective product pallet is fully loaded, manual control or a CCD sensor device 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 resetting of its pallet carrier, and the pallet transverse transport mechanism replenishes it with empty pallets.

[0032] When the new energy charging gun terminal detection in the inspection tray is completed and the tray is empty, the CCD sensor device sends a signal to the PLC controller, which drives the tray transverse transport mechanism to work, move the translational movable bracket and the suction cup device on it to the top of the empty inspection tray, absorb the empty inspection tray, and transport it to the tray carrier of the empty tray turnover unit mechanism.

[0033] Of course, the empty pallets on the empty pallet turnover unit mechanism can also be manually replenished and placed, and the empty pallets can be stacked on the pallet carrier.

[0034] Compared with the prior art, the multi-station loading and unloading mechanism of the new energy charging gun terminal tray provided by the utility model has the following beneficial effects:

[0035] 1. The utility model can assist manual loading and unloading of new energy charging gun terminal trays, greatly improve work efficiency, and reduce workers' labor intensity. Its various unit mechanisms can efficiently and orderly complete the unloading of defective or good pallets and the replenishment of empty pallets, as well as the loading of pallets for inspected products and the removal of empty pallets under the control of the CCD sensor device and the PLC controller, ensuring that the placement of inspected products, defective products and good products of the new energy charging gun terminals is synchronized with the automatic detection equipment process in front, and smoothly connected, greatly improving production efficiency.

[0036] 2. The utility model can reduce the number of operators at the original inspection stations while reducing the labor burden of workers, thereby saving labor costs and reducing enterprise production costs.

[0037] 3. Compared with manual detection, the mechanism of the utility model has good execution accuracy and stability, which can reduce human error and thus improve the detection quality of the new energy charging gun terminal.

[0038] 4. The utility model uses a tray as a carrier for the new energy charging gun terminals, and both the tray longitudinal feeding mechanism and the tray lateral transport mechanism operate smoothly to prevent the new energy charging gun terminals in the tray from being subjected to severe vibration. Compared with the conventional vibration plate mechanism, it can eliminate the appearance quality risk of the new energy charging gun terminals with precious metals plated on the surface.

[0039] 5. In the utility model, the tray is used as the carrier of the new energy charging gun terminal. The entire mechanism implements loading and unloading and turnover operations for the tray. Compared with the conveying track in the conventional vibration plate mechanism, the tray can be replaced arbitrarily to adapt to new energy charging gun terminals of different shapes. It has strong adaptability and is more suitable for production environments where lines are frequently changed. In addition, the tray molding and manufacturing is also very convenient, and the production cost is low.

[0040] 6. The utility model produces less noise when working than conventional vibration plate mechanisms.

[0041] The objects, advantages and features of the present invention will be illustrated and explained by the following non-limiting description of preferred embodiments, which are given as examples only with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A schematic diagram of the overall three-dimensional structure of the utility model;

[0043] Figure 2 for Figure 1 A separate three-dimensional structural diagram of the transverse transport mechanism of the middle pallet;

[0044] Figure 3 for Figure 1 A schematic diagram of a separate three-dimensional structure of the longitudinal feeding mechanism of the middle tray;

[0045] Figure 4 It is a separate three-dimensional structural schematic diagram of the loading state of the pallet lifting mechanism in the utility model (the pallet carrier is raised to the highest position);

[0046] Figure 5 It is a separate three-dimensional structural schematic diagram of the unloading state of the pallet lifting mechanism in the utility model (the pallet carrier is lowered to the lowest position);

[0047] Figure 6 It is a first lateral schematic diagram of the unloading state of the pallet lifting mechanism in the utility model (the pallet carrier is not pulled out along the slide groove);

[0048] Figure 7 It is a second lateral schematic diagram of the unloading state of the pallet lifting mechanism in the utility model (the pallet carrier is pulled out along the slide groove).

[0049] In the figure: 1. Pallet lateral transport mechanism; 101. Translation fixed bracket; 102. Servo translation drive mechanism; 103. Translation movable bracket; 104. Suction cup device; 104a. Double-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. Uninspected product loading unit mechanism; 204. Empty pallet turnover unit mechanism; 3. Pallet; 301. Uninspected product pallet ; 302, good product pallet; 303, defective product pallet; 4, 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 boss; 407, first pallet clamping cylinder; 408, second pallet clamping cylinder; 409, first clamping baffle; 410, second clamping baffle; 5, new energy charging gun terminal. DETAILED DESCRIPTION

[0050] The following will be combined Figure 1-Figure 7 As shown, the specific implementation method of the multi-station loading and unloading mechanism of the new energy charging gun terminal tray provided by the utility model is clearly and completely described.

[0051] First, Figure 1 As shown, the multi-station loading and unloading mechanism of the new energy charging gun terminal tray is composed of multiple trays 3 of the same specifications for placing the inspected products, good products and defective products of the new energy charging gun terminals, a tray longitudinal feeding mechanism 2 and a tray transverse transport mechanism 1 arranged above it.

[0052] Combination Figure 3-Figure 7 As shown, the pallet longitudinal feeding mechanism 2 is composed of a defective product unloading unit mechanism 201, a good product unloading unit mechanism 202, a to-be-inspected product loading unit mechanism 203 and an empty pallet turnover unit mechanism 204 arranged side by side, and each unit mechanism is provided with the same pallet lifting mechanism 4, which is composed of a lifting fixed bracket 401, a lifting movable bracket 403 that is driven to move up and down by a servo lifting drive mechanism 402 arranged on the lifting fixed bracket 401, and a pallet carrier 404 arranged on the lifting movable bracket 403, as well as a slide groove 403a arranged on the lifting movable bracket 403, a pallet carrier movable positioning mechanism and a pallet clamping mechanism.

[0053] In this embodiment, the servo lifting drive mechanism 402 in each unit mechanism is a servo electric cylinder, and is electrically connected to a PLC controller (not shown in the figure).

[0054] In this embodiment, the lifting movable bracket 403 is provided with two horizontal parallel slide grooves 403a. Figure 5 As shown, the tray carrier 404 is fixed with sliders respectively matched with the two slide grooves 403a, so that the tray carrier 404 can slide horizontally along the slide grooves 403a.

[0055] Specific combination Figure 4-Figure 7 As shown, the tray carrier movable positioning mechanism is arranged on the lifting movable bracket 403 to limit the tray carrier 404 from sliding horizontally along the slide groove 403a, and the tray carrier movable positioning mechanism is electrically connected to the PLC controller. The tray carrier movable positioning mechanism includes a telescopic boss 406 driven by a telescopic drive device 405, and the telescopic boss 406 cooperates with a positioning hole 404a arranged on the tray carrier 404 to limit the tray carrier 404 from sliding horizontally along the slide groove 403a, and the telescopic drive device 405 is a telescopic cylinder electrically connected to the PLC controller.

[0056] Still combined Figure 4-Figure 7As shown, the pallet clamping mechanism in this embodiment is arranged at 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 opposite to each other in the horizontal direction, a first clamping baffle 409 is fixed to the top rod of the first pallet clamping cylinder 407, and a second clamping baffle 410 opposite to the first clamping baffle 409 is fixed to the top rod of the second pallet clamping cylinder 408, so as to clamp and fix the pallet 3 in the front and rear directions, and the first pallet clamping cylinder 407 and the second pallet clamping cylinder 408 are both electrically connected to the PLC controller.

[0057] For example Figure 2 As shown, the pallet lateral transport mechanism 1 in this embodiment is composed of a translation fixed bracket 101, a translation movable bracket 103 driven for lateral translation movement by a servo translation driving mechanism 102 disposed on the translation fixed bracket 101, and a suction cup device 104 fixed thereon for sucking the pallet 3. The servo translation driving mechanism 102 is a servo electric cylinder and is electrically connected to the PLC controller.

[0058] The suction cup device 104 described in this embodiment includes a double-axis cylinder 104a fixed on the translational movable bracket 103 and a suction cup positioning platform 104b driven to rise and fall by the double-axis cylinder 104a, and 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) via air pipelines, and the double-axis cylinder 104a and the vacuum pump are both electrically connected to the PLC controller.

[0059] The pallet transverse transport mechanism 1 is used to transport the empty pallet 3 on 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 inspected product loading unit mechanism 203 to the pallet carrier 404 of the empty pallet turnover unit mechanism 204.

[0060] In this embodiment, the defective product unloading unit mechanism 201, the good product unloading unit mechanism 202 and the inspected product loading unit mechanism 203 are all provided with a CCD sensor device (not shown in the figure) for detecting the full or empty state of their corresponding trays 3, and are electrically connected to the PLC controller.

[0061] Combination Figure 1-Figure 7 As shown, the working principle of the utility model is as follows:

[0062] The utility model is mainly used in conjunction with the existing detection equipment for the new energy charging gun terminal 5, and is used for loading and unloading and turnover between the to-be-tested product tray 301, the good product tray 302, and the defective product tray 303. Like the known technology, the to-be-tested product tray 301 (fully loaded at the beginning) is a tray 3 for the new energy charging gun terminal 5 to be tested, the good product tray 302 (empty tray at the beginning) is a tray 3 for placing the new energy charging gun terminal 5 that has passed the test, and the defective product tray 303 (empty tray at the beginning) is a tray 3 for placing the new energy charging gun terminal 5 that has failed the test, and the specifications of these trays 3 are the same. In addition, the tray 3 is provided with an array of embedded grooves for the new energy charging gun terminal 5 to be loaded, and a QR code is printed next to the embedded groove, which can be identified and recorded or read by a code scanning device. The detection data information of the new energy charging gun terminal 5 (defective or good) loaded in the corresponding embedded groove.

[0063] Initially, workers place each pallet 3 on the pallet carrier 404 at the bottom of the pallet lifting mechanism 4 in the defective product unloading unit mechanism 201, the good product unloading unit mechanism 202, the inspected product loading unit mechanism 203 and the empty pallet turnover unit mechanism 203, and then the pallet lifting mechanism 4, driven by the PLC controller, raises the pallet carrier 404 to the highest position, and then clamps and positions the pallet 3 through the pallet clamping mechanism.

[0064] Then, the robot arm of the front-end detection equipment grabs the product to be inspected from the product tray 301 for inspection, and the qualified new energy charging gun terminals 5 are placed in the good product tray 302, while the unqualified ones are placed in the defective product tray 303.

[0065] After the good product pallet 302 is fully loaded, the manual control or CCD sensor sends a signal to the PLC controller to control the pallet lifting mechanism 4 of the good product unloading unit mechanism 202, the first pallet clamping cylinder 407 and the second pallet clamping cylinder 408 of the pallet clamping mechanism 4 are opened, and the pallet carrier 404 carrying the good product pallet 302 is lowered to the bottom, and then the telescopic protrusion 406 of the pallet carrier movable positioning mechanism is retracted, and the worker pulls the pallet carrier 404 out along the slide 403a, removes the good product pallet 302 to complete the good product unloading. Then the pallet carrier 404 is reset to the high position under the PLC controller.

[0066] After the pallet carrier 404 of the good product unloading unit mechanism 202 is reset to the high position, the PLC controller drives the pallet transverse transport mechanism 1 to work, and sucks the empty pallet 3 from the empty pallet turnover unit mechanism 204 through the suction cup device 104, and transports it to the pallet carrier 404 of the good product unloading unit mechanism 202, and is clamped and fixed by its pallet clamping mechanism.

[0067] Similarly, after the defective product pallet 303 is fully loaded, manual control or a CCD sensor device sends a signal to the PLC controller to control the pallet lifting mechanism 4 of the defective product unloading unit mechanism 201 to complete the unloading of defective products and the resetting of its pallet carrier 404, and the pallet transverse transport mechanism 1 replenishes it with empty pallets.

[0068] When the new energy charging gun terminal 5 in the inspection tray 301 has detected an empty tray, the CCD sensor device sends a signal to the PLC controller, which drives the tray transverse transport mechanism 1 to work, move the translational movable bracket 103 and the suction cup device 104 thereon to the top of the empty inspection tray 301, absorb the empty inspection tray 301, and transport it to the tray carrier 404 of the empty tray turnover unit mechanism 204.

[0069] Of course, the empty pallets 3 on the empty pallet turnover unit mechanism 204 can also be manually replenished and placed, and the empty pallets 3 can be stacked and placed on the pallet carrier 404 .

[0070] Of course, the above are only specific application examples of the utility model, and do not constitute any limitation on the protection scope of the utility model. In addition to the above embodiments, the utility model can also have other implementation methods. Any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection required by the utility model.

Claims

1. A multi-station loading and unloading mechanism for a new energy charging gun terminal tray, comprising a plurality of trays (3) of the same specification for placing the uninspected products, good products and defective products of the new energy charging gun terminals (5), characterized in that It also includes a pallet longitudinal feeding mechanism (2) and a pallet transverse transport mechanism (1) arranged above the pallet longitudinal feeding mechanism (2), the former including a defective product unloading unit mechanism (201), a good product unloading unit mechanism (202), a to-be-inspected product loading unit mechanism (203) and an empty pallet turnover unit mechanism (204) arranged side by side, each unit mechanism is provided with a pallet lifting mechanism (4), the pallet lifting mechanism (4) comprising a lifting fixed bracket (401), a lifting movable bracket (403) that is driven to move up and down by a servo lifting drive mechanism (402) arranged on the lifting fixed bracket (401), and a pallet carrier (404) arranged on the lifting movable bracket (403); the servo lifting drive mechanism (402) in each unit mechanism is electrically connected to a PLC controller; The pallet transverse transport mechanism (1) comprises a translation fixed support (101), a translation movable support (103) driven to move transversely by a servo translation drive mechanism (102) disposed on the translation fixed support (101), and a suction cup device (104) fixed thereon for sucking the pallet (3); the servo translation drive mechanism (102) and the suction cup device (104) are both electrically connected to a PLC controller and driven by the PLC controller to transport an empty pallet (3) on an empty pallet turnover unit mechanism (204) to a pallet carrier (404) of a defective product unloading unit mechanism (201) or a good product unloading unit mechanism (202), or to transport an empty pallet (3) on a to-be-inspected product loading unit mechanism (203) to a pallet carrier (404) of an empty pallet turnover unit mechanism (204).

2. The multi-station loading and unloading mechanism of the new energy charging gun terminal tray according to claim 1 is characterized in that The defective product unloading unit mechanism (201), the good product unloading unit mechanism (202) and the inspected product loading unit mechanism (203) are all provided with a CCD sensor device for detecting the full or empty state of the corresponding tray (3), and are electrically connected to the PLC controller.

3. The multi-station loading and unloading mechanism of the new energy charging gun terminal tray according to claim 1 is characterized in that The lifting movable bracket (403) is provided with a horizontal slide groove (403a), and a sliding block cooperating with the slide groove (403a) is fixed on the tray carrier (404), so that the tray carrier (404) can slide horizontally along the slide groove (403a).

4. The multi-station loading and unloading mechanism of the new energy charging gun terminal tray according to claim 3 is characterized in that The tray lifting mechanism (4) further comprises a tray carrier movable positioning mechanism arranged on the lifting movable bracket (403) and used for limiting the tray carrier (404) from sliding horizontally along the slide groove (403a), and the tray carrier movable positioning mechanism is electrically connected to the PLC controller.

5. The multi-station loading and unloading mechanism of the new energy charging gun terminal tray according to claim 4 is characterized in that The tray carrier movable positioning mechanism comprises a telescopic boss (406) driven by a telescopic drive device (405), the telescopic boss (406) cooperates with a positioning hole (404a) provided on the tray carrier (404) to limit the tray carrier (404) from sliding horizontally along the slide groove (403a), and the telescopic drive device (405) is a telescopic motor or a telescopic cylinder electrically connected to the PLC controller; Alternatively, the pallet carrier positioning mechanism comprises a flip block driven by a flip drive device, the flip block cooperating with a positioning groove or a positioning block provided on the pallet carrier (404) to limit the pallet carrier (404) from sliding horizontally along the slide groove, and the flip drive device is a flip motor or a flip cylinder electrically connected to the PLC controller.

6. The multi-station loading and unloading mechanism of the new energy charging gun terminal tray according to claim 1 is characterized in that The pallet lifting mechanism (4) further comprises a pallet clamping mechanism disposed on the top of the lifting fixing bracket (401) and used for horizontally clamping the pallet (3).

7. The multi-station loading and unloading mechanism of the new energy charging gun terminal tray according to claim 6 is characterized in that The pallet clamping mechanism comprises a first pallet clamping cylinder (407) and a second pallet clamping cylinder (408) which are arranged opposite to each other in a horizontal direction, the top rod of the first pallet clamping cylinder (407) being fixed with a first clamping baffle (409), and the top rod of the second pallet clamping cylinder (408) being fixed with a second clamping baffle (410) which is opposite to the first clamping baffle (409), for clamping and fixing the pallet (3) in the front-back or left-right directions, and the first pallet clamping cylinder (407) and the second pallet clamping cylinder (408) are both electrically connected to the PLC controller.

8. The multi-station loading and unloading mechanism of the new energy charging gun terminal tray according to claim 1 is characterized in that The suction cup device (104) comprises a double-axis cylinder (104a) fixed on a translationally movable bracket (103) and a suction cup positioning platform (104b) driven to rise and fall by the double-axis cylinder (104a); a plurality of suction cups (104c) are fixed on the suction cup positioning platform (104b) and are connected to a vacuum pump via an air pipeline; the double-axis cylinder (104a) and the vacuum pump are both electrically connected to the PLC controller.

9. The multi-station loading and unloading mechanism of the new energy charging gun terminal tray according to claim 1 is characterized in that The servo lifting drive mechanism (402) is a servo electric cylinder or a servo hydraulic cylinder or a linear motor, and the servo translation drive mechanism (102) is also a servo electric cylinder, a servo hydraulic cylinder or a linear motor.

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