An automatic fastening assembly system for current transformers

Abstract

This utility model belongs to the technical field of current transformer assembly equipment, specifically relating to an automatic fastening assembly system for current transformers. The current transformer is fixed by a tray on a conveyor belt and transported through an assembly station by the conveyor belt. The system includes a slide module, screw clamps, washer grippers, and an automatic screwdriver. A screw supply station and a washer supply station are provided next to the assembly station. The automatic screwdriver is coaxially arranged with the clamping cavity on the screw clamp for gripping screws. The screw clamp, washer grippers, and automatic screwdriver are all mounted on the slider of the slide module and have the freedom to reciprocate between the screw supply station, washer supply station, and assembly station via the slider. This assembly system automates the fastening assembly of current transformers, replacing traditional manual operation, while avoiding errors caused by manual operation and ensuring assembly accuracy and consistency.

Description

Technical Field

[0001] This utility model belongs to the technical field of current transformer assembly equipment, and specifically relates to an automatic fastening assembly system for current transformers. Background Technology

[0002] As a core device in power systems for voltage and current transformation and signal transmission, the assembly quality of instrument transformers directly affects the operational stability and metering accuracy of the power network. In the instrument transformer manufacturing process, the tight assembly of each component must ensure no loose gaps between components to avoid vibration losses, while also strictly controlling the tightening torque to prevent damage to insulation components due to overvoltage. This places high demands on the precision and consistency of the assembly process.

[0003] Traditional instrument transformer fastening and assembly largely relies on manual operation. Specifically, the instrument transformer is clamped onto a pallet, which is conveyed to the assembly station via a conveyor belt. A liftable limiter restricts the pallet's position in the conveying direction, and clamps hold the pallet in place. Workers then sequentially place gaskets and screws into the instrument transformer's mounting holes and use an automatic screwdriver to tighten the screws. However, manual operation relies entirely on the operator's feel for the tightening torque, which can result in either too loose or too tight torque, leading to inconsistent product quality. Furthermore, manual operation is prone to errors due to fatigue or negligence, such as forgetting to place gaskets or tighten screws, which can easily damage the instrument transformer during subsequent handling and transportation. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides an automatic fastening and assembly system for current transformers, which automates the fastening and assembly of current transformers, replaces traditional manual operation, avoids errors caused by manual operation, and ensures assembly accuracy and consistency.

[0005] The specific technical solution adopted in this utility model is as follows:

[0006] An automatic fastening and assembly system for current transformers is disclosed. The current transformers are fixed by a tray on a conveyor belt and transported through an assembly station by the conveyor belt. The system includes a slide module, a screw clamp, a washer gripper, and an automatic screwdriver. A screw supply station and a washer supply station are provided next to the assembly station. The automatic screwdriver and the clamping cavity on the screw clamp for gripping screws are coaxially arranged. The screw clamp, washer gripper, and automatic screwdriver are all mounted on the slider of the slide module and have the freedom to reciprocate between the screw supply station, the washer supply station, and the assembly station by means of the slider. The washer gripper and the automatic screwdriver each have the freedom to move along the Z-axis on the slider by means of a lifting drive unit. The conveyor belt transports the tray along the X-axis.

[0007] The screw clamp includes parallel jaws and a pair of L-shaped jaw bodies. The jaw arms of the parallel jaws extend vertically downwards. The horizontal part of the L-shaped jaw body is connected to the jaw arms, and the vertical part of the L-shaped jaw body is adjacent to the parallel jaws. A screw clamping cavity is formed between the vertical parts of the L-shaped jaw bodies.

[0008] The screw supply station is provided with a first feeding block, and the first feeding block is provided with a first discharge chute. The first discharge chute is connected to the first output end of the first vibrating feeding plate. The first vibrating feeding plate and the first feeding block are arranged sequentially along the X-axis. The first feeding block has the freedom to reciprocate along the Y-axis and connect or misalign the first discharge chute with the first output end by means of a translation mechanism. When the first discharge chute is misaligned with the first output end, the side wall of the first feeding block forms a retaining wall for the first output end.

[0009] The gasket supply station is provided with a second feeding block. The second feeding block and the second vibrating feed plate are arranged sequentially along the X-axis. The second feeding block is provided with a second discharge groove. The second feeding block has the freedom to reciprocate along the Y-axis by means of a translation mechanism, and to connect and misalign the second discharge groove with the second output end of the second vibrating feed plate. When the second feeding block and the second output end are misaligned, the side wall of the second feeding block forms a retaining wall for the second output end.

[0010] The screw supply station and the washer supply station are spaced apart along the X-axis, and the screw clamp, washer gripper and conveyor belt are arranged sequentially along the Y-axis.

[0011] The lifting drive unit includes a first cylinder and a second cylinder mounted on the slider. The telescopic end of the first cylinder is connected to the gasket gripper, and the telescopic end of the second cylinder is guided and connected to the mounting plate along the Z-axis. A spring is fitted on the telescopic end of the second cylinder. The automatic screwdriver is fixed to the mounting plate and guided and connected to the slider along the Z-axis by means of the mounting plate.

[0012] The screw supply station and the washer supply station are respectively equipped with proximity switches for detecting whether the screws and washers are in place. The proximity switches are connected to the controller, and the controller is connected to the controlled end of the screw clamp, washer gripper, automatic screwdriver, lifting drive unit, translation mechanism and slide module.

[0013] A control method for implementing the above-mentioned automatic fastening assembly system for a current transformer includes the following steps:

[0014] S1. When the proximity switch detects that the screw has reached the screw supply station and the gasket has reached the gasket supply station, the controller controls the slider on the slide module to move. The slider drives the gasket gripper to enter the gasket supply station to grab the gasket and the screw clamp to enter the screw supply station to grab the screw. At the same time, the conveyor belt sends the tray with the current transformer into the assembly station.

[0015] S2. The slider moves the gasket clamp to place the gasket into the mounting hole on the current transformer.

[0016] S3. The slider moves the screw clamp to position the screw above the washer. The extension end of the second cylinder extends, driving the mounting plate to descend relative to the screw clamp. The spring is compressed, and the shank of the automatic screwdriver contacts the head of the screw and pushes it downward. The screw falls through the washer into the mounting hole of the current transformer. Then the screw clamp opens, the slider moves upward, and the distance the slider moves upward is less than the distance the extension end of the second cylinder extends. The rotation of the shank, combined with the force of the spring on the mounting plate, screws the screw into the mounting hole of the current transformer.

[0017] S4. The slider rises, and the automatic screwdriver rises relative to the screw clamp.

[0018] S5. The slider continues to drive the gasket gripper into the gasket supply station to grab the gasket, and the screw clamp enters the screw supply station to grab the screw.

[0019] S6. Repeat steps S2-S5 until the fastening assembly of each current transformer on the tray is completed.

[0020] Furthermore, the screw is a three-piece screw, with the screw head and screw rod arranged sequentially from top to bottom on the first discharge groove. In step S1 or S5, before the screw clamp picks up the screw, the translation mechanism drives the first feeding block to move along the Y-axis and misaligns the discharge groove with the first output end. The screw clamp picks up the screw head and moves the screw from the first discharge groove along the X-axis. Then, the translation mechanism drives the first feeding block to reset and connect with the first output end.

[0021] The beneficial effects of this utility model are:

[0022] This utility model automates the assembly of current transformers by placing working components such as screw clamps, washer grippers, and automatic screwdrivers on a slide module. The slide module drives these components to reciprocate between the screw supply station, washer supply station, and assembly station, thereby gripping, placing, and tightening the washer and screw. This achieves automated operation of the current transformer fastening assembly, replacing traditional manual operation. It also avoids errors caused by manual operation, ensures assembly accuracy and consistency, and prevents damage to the current transformer caused by problems such as missing washer or missing screw.

[0023] The automatic screwdriver and the screw clamp are coaxially positioned to ensure that the automatic screwdriver is precisely aligned with the groove on the screw head, reducing problems such as screw slippage and head damage caused by eccentricity.

[0024] By connecting the horizontal part with the claw arm, the vertical part, which is offset from the parallel claw, moves with the movement of the claw arm, thereby enabling the vertical part to clamp and grasp the screw, and providing installation space for the automatic screwdriver to be coaxially arranged with the clamping cavity.

[0025] An automatic screwdriver is driven to move along the Z-axis by a second cylinder mounted on the slider. A spring is fitted on the telescopic end of the second cylinder. The automatic screwdriver is fixed to the mounting plate and guided to the slider along the Z-axis by the mounting plate. The spring converts the rigid thrust of the second cylinder into flexible pressure, preventing damage to the transformer due to overpressure or rigid pressure. The spring's rebound force serves as the driving force for the automatic screwdriver to continue descending. If there is a slight concentricity deviation between the screw and the mounting hole, the lateral deformation of the spring allows the automatic screwdriver to adjust its angle slightly, ensuring that the screwdriver shank is correctly inserted into and always in contact with the screw head groove. This prevents the screwdriver shank from dislodging from the screw head groove, which could lead to screw damage or assembly failure, thus ensuring the stability and consistency of the fastening assembly. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a magnified schematic diagram of part A;

[0028] Figure 3 This is an assembly diagram of the screw clamp, washer jaws, automatic screwdriver, and slider;

[0029] In the attached diagram, 1. Current transformer, 2. Conveyor belt, 3. Tray, 4. Assembly station, 5. Slide module, 6. Screw clamp, 7. Washer gripper, 8. Automatic screwdriver, 801. Screw bar, 9. Screw supply station, 10. Washer supply station, 11. Screw, 12. Slider, 13. Parallel gripper, 1301. Grip arm, 14. L-shaped gripper body, 1401. Horizontal part, 1402. Vertical part, 15. First feeding block, 1501. First discharge chute, 16. First vibrating feeder, 1601. First output end, 17. Translation mechanism, 18. Second feeding block, 1801. Second discharge chute, 19. Second vibrating feeder, 1901. Second output end, 20. First cylinder, 21. Second cylinder, 22. Mounting plate, 23. Spring, 24. Proximity switch. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0031] Specific implementation examples Figure 1 As shown, this utility model relates to an automatic fastening and assembly system for a current transformer. The current transformer 1 is fixed by a tray 3 on a conveyor belt 2 and is conveyed by the conveyor belt 2 to an assembly station 4. The system includes a slide module 5, a screw clamp 6, a gasket gripper 7, and an automatic screwdriver 8. A screw supply station 9 and a gasket supply station 10 are provided next to the assembly station 4. The automatic screwdriver 8 is coaxially arranged with the clamping cavity on the screw clamp 6 for gripping screws 11. The screw clamp 6, the gasket gripper 7, and the automatic screwdriver 8 are all mounted on the slider 12 of the slide module 5 and have the freedom to reciprocate between the screw supply station 9, the gasket supply station 10, and the assembly station 4 by means of the slider 12. The gasket gripper 7 and the automatic screwdriver 8 have the freedom to move along the Z-axis on the slider 12 by means of a lifting drive unit. The conveyor belt 2 conveys the tray 3 along the X-axis.

[0032] The screw clamp 6, washer gripper 7, and automatic screwdriver 8 all reciprocate at the screw supply station 9, washer supply station 10, and assembly station 4 via the slider 12. The screw clamp 6 picks up the screw 11 at the screw supply station 9, and the washer gripper 7 picks up the washer at the washer supply station 10. When moving to the assembly station 4, the washer gripper 7 places the washer into the mounting hole on the current transformer 1, and the screw clamp 6 places the screw 11 through the washer into the mounting hole. The automatic screwdriver 8 then installs the screw 11 onto the current transformer 1. This automates the fastening and assembly of the current transformer 1, replacing traditional manual operation. It also avoids errors caused by manual operation, ensures assembly accuracy and consistency, and prevents damage to the current transformer caused by problems such as missing washer or missing screw.

[0033] The automatic screwdriver 8 and the clamping cavity of the screw clamp 6 are coaxially arranged to ensure that the automatic screwdriver 8 is precisely aligned with the groove on the head of the screw 11, reducing problems such as screw slippage and head damage caused by eccentricity. The automatic screwdriver 8 has the freedom to move along the Z-axis on the slider 12 via a lifting drive unit. Driven by the lifting drive unit, the automatic screwdriver 8 moves downward on the slider 12, pushing the screw 11 downward from the clamping cavity of the screw clamp 6. The clamping cavity of the screw clamp 6 guides the screw 11, allowing it to move smoothly downward along the Z-axis, preventing skew during downward movement and ensuring that the screw 11 can smoothly pass through the washer and enter the mounting hole. The automatic screwdriver 8, in conjunction with the current transformer 1, clamps the screw 11 in the Z-axis direction. When the screw clamp 6 opens, the screw 11 remains vertical.

[0034] The gasket chuck 7 has the freedom to move along the Z-axis thanks to the lifting drive unit, which allows the gasket chuck 7 to descend relative to the screw clamp 6 on the slider 12, thus avoiding interference between the gasket chuck 7 and the current transformer 1 during assembly.

[0035] The screw clamp 6 includes parallel jaws 13 and a pair of L-shaped jaw bodies 14. The jaw arms 1301 of the parallel jaws 13 extend vertically downwards. The horizontal portion 1401 of the L-shaped jaw bodies 14 is connected to the jaw arms 1301, and the vertical portion 1402 of the L-shaped jaw bodies 14 is adjacent to the parallel jaws 13. A clamping cavity for the screw 11 is formed between the vertical portions 1402 of the L-shaped jaw bodies 14. By means of the connection between the horizontal portion 1401 and the jaw arms 1301, the vertical portion 1402, which is offset from the parallel jaws 13, moves with the movement of the jaw arms 1301, thereby clamping and gripping the screw 11 by the vertical portion 1402, and providing installation space for the automatic screwdriver 8 to be coaxially arranged with the clamping cavity.

[0036] like Figure 1 , Figure 2 As shown, a first feeding block 15 is provided on the screw supply station 9. A first discharge trough 1501 is provided on the first feeding block 15. The first discharge trough 1501 is connected to the first output end 1601 of the first vibrating feed plate 16. The first vibrating feed plate 16 and the first feeding block 15 are arranged sequentially along the X-axis. The first feeding block 15 has the freedom to move back and forth along the Y-axis by means of the translation mechanism 17, so that the first discharge trough 1501 can be connected to or misaligned with the first output end 1601. When the first discharge trough 1501 is misaligned with the first output end 1601, the side wall of the first feeding block 15 forms a barrier for the first output end 1601. The first vibrating feeder 16 feeds the screw 11 along the X-axis to the first discharge slot 1501 of the first feeder block 15. Then, the translation mechanism 17 drives the first feeder block 15 to translate along the Y-axis, so that the first discharge slot 1501 moves to one side of the first output end 1601. This makes it easier for the screw clamp 6 to clamp the head of the screw 11 and move along the X-axis to remove the screw 11 from the first discharge slot 1501. When the screw clamp 6 clamps the head of the screw 11 to remove the material, the side wall of the first feeder block 15 forms a barrier for the first output end 1601, preventing the screw 11 from accumulating due to continuous feeding by the first vibrating feeder 16. This ensures that only one screw 11 is output per feeding, improving feeding accuracy.

[0037] like Figure 1 , Figure 2 As shown, a second feeding block 18 is provided on the gasket supply station 10. The second feeding block 18 and the second vibrating feeder 19 are arranged sequentially along the X-axis. The second feeding block 18 is provided with a second discharge groove 1801. The second feeding block 18 has the freedom to reciprocate along the Y-axis and connect or misalign the second discharge groove 1801 with the second output end 1901 of the second vibrating feeder 19 by means of the translation mechanism 17. When the second feeding block 18 and the second output end 1901 are misaligned, the side wall of the second feeding block 18 forms a baffle for the second output end 1901, preventing the gaskets from accumulating due to continuous feeding by the second vibrating feeder 19, ensuring that only one gasket is output in a single feeding, and improving the feeding accuracy.

[0038] Screw supply station 9 and washer supply station 10 are spaced apart along the X-axis, while screw clamps 6, washer grippers 7, and conveyor belt 2 are arranged sequentially along the Y-axis. This optimized spatial layout between stations helps shorten the movement path of the slide module 5, reduces action time, and thus improves assembly efficiency.

[0039] like Figure 3 As shown, the lifting drive unit includes a first cylinder 20 and a second cylinder 21 mounted on the slider 12. The telescopic end of the first cylinder 20 is connected to the gasket clamp 7, and the telescopic end of the second cylinder 21 is guided and connected to the mounting plate 22 along the Z-axis direction. A spring 23 is fitted on the telescopic end of the second cylinder 21. The automatic screwdriver 8 is fixed to the mounting plate 22 and guided and connected to the slider 12 along the Z-axis direction by means of the mounting plate 22.

[0040] The second cylinder 21 drives the automatic screwdriver 8 to move rapidly downwards via rigid extension until the screwdriver 8's shank 801 contacts the screw head and pushes the screw into the mounting hole on the current transformer 1. The spring 23 prevents the automatic screwdriver 8 from causing a hard impact on the screw 11 or the current transformer 1 when it descends, protecting the screw 11 and the current transformer 1 from damage. The spring 23 converts the rigid thrust of the second cylinder 21 into flexible pressure, preventing damage to the current transformer due to overpressure or rigid pressure. The rebound force of the spring 23 can serve as the driving force for the automatic screwdriver 8 to continue descending. If there is a slight concentricity deviation between the screw 11 and the mounting hole, the lateral deformation of the spring 23 allows the automatic screwdriver 8 to adjust its angle slightly, ensuring that the shank 801 and the head groove of the screw 11 are always in contact, preventing the shank 801 from disengaging from the head groove of the screw 11, which could lead to damage to the screw 11 or assembly failure.

[0041] On the other hand, if the angle between the groove on the head of the screw 11 and the shank 801 of the automatic screwdriver 8 is not aligned, and the automatic screwdriver 8 is driven to descend by rigid pressure, the shank 801 cannot properly engage with the groove on the head of the screw 11 to drive the screw 11 to rotate. However, the flexible pressure of the spring 23 allows the shank 801 to maintain a certain elastic margin when it contacts the screw 11. After the shank 801 rotates, it finds the optimal alignment angle that matches the groove, achieving adaptive engagement between the shank 801 and the screw 11. This ensures that the shank 801 smoothly inserts into the groove and drives the screw 11 to rotate, thereby ensuring the stability and consistency of the fastening assembly.

[0042] The screw supply station 9 and the washer supply station 10 are respectively equipped with proximity switches 24 for detecting whether the screw 11 and the washer are in place. The proximity switches 24 are connected to the controller signal. The controller is connected to the controlled end of the screw clamp 6, the washer gripper 7, the automatic screwdriver 8, the lifting drive unit, the translation mechanism 17 and the slide module 5. When the proximity switch 24 detects that the screw 11 enters the first discharge trough 1501 and the washer enters the second discharge trough 1801, the controller controls the subsequent actions of the slide module 5, the translation mechanism 17, the screw clamp 6, the washer gripper 7, the lifting drive unit and the automatic screwdriver 8. The response is timely and no manual intervention is required.

[0043] A control method for implementing the above-mentioned automatic fastening assembly system for a current transformer includes the following steps:

[0044] When the proximity switch 24 detects that the screw 11 has arrived at the screw supply station 9 and the gasket has arrived at the gasket supply station 10, the controller controls the translation mechanism 17 to drive the first feeding block 15 and the second feeding block 18 to move. Then the slider 12 drives the gasket gripper 7 to enter the gasket supply station 10 to grab the gasket and the screw clamp 6 to enter the screw supply station 9 to grab the screw 11. After grabbing, the first feeding block 15 and the second feeding block 18 are reset. At the same time as grabbing the screw 11 and the gasket, the conveyor belt 2 sends the tray 3 with the current transformer 1 into the assembly station 4.

[0045] When gripping the gasket, the gripper 7 inserts its claw into the hole of the gasket, moves in the opposite direction to abut against the inner wall of the gasket, the slider 12 moves upward, and the gripper 7 removes the gasket from the second discharge groove 1801.

[0046] S2, the slider 12 moves so that the gasket clamp 7 is above the mounting hole of the current transformer 1. The first cylinder 20 drives the gasket clamp 7 to move downward, and the gasket clamp 7 opens to put the gasket into the mounting hole on the current transformer 1. Then the first cylinder 20 drives the gasket clamp 7 to reset.

[0047] S3. The slider 12 drives the screw clamp 6 to position the screw 11 above the washer. The extension end of the second cylinder 21 extends, driving the mounting plate 22 to descend relative to the screw clamp 6. The spring 23 is compressed, and the shank 801 of the automatic screwdriver 8 contacts the head of the screw 11 and pushes the screw 11 downward. The screw 11 falls through the washer into the mounting hole on the current transformer 1. Then the screw clamp 6 opens, and the slider 12 moves upward. The distance the slider moves upward is less than the distance the extension end of the second cylinder 21 extends. Under the action of the spring 23, the shank 801 always keeps in contact with the head of the screw 11. The spring 23 provides a stable downward pressure to the mounting plate 22. The rotation of the shank 801, combined with the force of the spring 23 on the mounting plate 22, screws the screw 11 into the mounting hole of the current transformer 1.

[0048] S4, slider 12 rises, and second cylinder 21 drives automatic screwdriver 8 to rise relative to screw clamp 6.

[0049] S5, slider 12 continues to drive the gasket gripper 7 into the gasket supply station 10 to grab the gasket, screw clamp 6 enters the screw supply station 9 to grab the screw 11.

[0050] S6. Repeat steps S2-S5 until the fastening assembly of each current transformer 1 on tray 3 is completed.

[0051] This control method implements a cyclical process of gripping the gasket, gripping the screw, placing the gasket, placing the screw, and tightening the screw, thereby ensuring the orderly connection of gripping and assembling the gasket and screw, avoiding omissions or incorrect installations, and ensuring a standardized assembly process.

[0052] In this embodiment, screw 11 is a three-piece screw. The head and shank of screw 11 are arranged sequentially from top to bottom on the first discharge groove 1501. The top surface of the head of screw 11 protrudes from the upper surface of the first feeding block 15 for the screw clamp 6 to grip. In step S1 or S5, before the screw clamp 6 grips screw 11, the translation mechanism 17 drives the first feeding block 15 to move along the Y-axis and misaligns the discharge groove with the first output end 1601. The screw clamp 6 grips the head of screw 11 and moves screw 11 from the first discharge groove 1501 along the X-axis. Then, the translation mechanism 17 drives the first feeding block 15 to reset and connect with the first output end 1601. The self-contained washer and self-contained spring washer of the three-piece screw are pre-pressed on the shank. If a vertical force is applied when picking up the material, the self-contained washer may separate from the shank and the self-contained spring washer may be misaligned due to uneven force, which may damage the pre-assembled state and affect the subsequent assembly quality.

[0053] When the screw is removed horizontally, the screw clamp 6 grasps the head of the screw 11 and moves it horizontally. The screw and the built-in washer are only subjected to slight frictional force parallel to the axis, without any vertical pulling force. This can maximize the protection of the pre-fixed structure of the built-in washer, the built-in spring washer and the screw, and ensure that the screw 11 remains in a complete assembled state after it is removed.

Claims

1. An automatic fastening and assembly system for a current transformer, wherein the current transformer (1) is fixed by means of a tray (3) on a conveyor belt (2) and conveyed by the conveyor belt (2) through an assembly station (4), characterized in that: The system includes a slide module (5), a screw clamp (6), a washer gripper (7), and an automatic screwdriver (8). A screw supply station (9) and a washer supply station (10) are provided next to the assembly station (4). The automatic screwdriver (8) and the clamping cavity on the screw clamp (6) for gripping screws (11) are coaxially arranged. The screw clamp (6), washer gripper (7), and automatic screwdriver (8) are all mounted on the slider (12) of the slide module (5) and have the freedom to reciprocate between the screw supply station (9), the washer supply station (10), and the assembly station (4) by means of the slider (12). The washer gripper (7) and the automatic screwdriver (8) have the freedom to move along the Z-axis on the slider (12) by means of the lifting drive unit. The conveyor belt (2) transports the tray (3) along the X-axis.

2. An automatic fastening assembly system for a transformer according to claim 1, characterized in that: The screw clamp (6) includes a parallel jaw (13) and a pair of L-shaped jaw bodies (14). The jaw arms (1301) of the parallel jaw (13) extend vertically downwards. The horizontal part (1401) of the L-shaped jaw body (14) is connected to the jaw arms (1301). The vertical part (1402) of the L-shaped jaw body (14) is adjacent to the parallel jaw (13). A clamping cavity for the screw (11) is formed between the vertical parts (1402).

3. An automatic fastening assembly system for a transformer according to claim 1, characterized in that: The screw supply station (9) is provided with a first feeding block (15), and the first feeding block (15) is provided with a first discharge groove (1501). The first discharge groove (1501) is connected to the first output end (1601) of the first vibrating feeding plate (16). The first vibrating feeding plate (16) and the first feeding block (15) are arranged sequentially along the X-axis. The first feeding block (15) has the freedom to move back and forth along the Y-axis by means of the translation mechanism (17) and to connect and misalign the first discharge groove (1501) with the first output end (1601). When the first discharge groove (1501) and the first output end (1601) are misaligned, the side wall of the first feeding block (15) forms a retaining wall for the first output end (1601).

4. An automatic fastening assembly system for a transformer according to claim 1, characterized in that: The gasket supply station (10) is provided with a second feeding block (18). The second feeding block (18) and the second vibrating feeder (19) are arranged sequentially along the X-axis. The second feeding block (18) is provided with a second discharge trough (1801). The second feeding block (18) has the freedom to move back and forth along the Y-axis by means of a translation mechanism (17) and to connect or misalign the second discharge trough (1801) with the second output end (1901) of the second vibrating feeder (19). When the second feeding block (18) and the second output end (1901) are misaligned, the side wall of the second feeding block (18) forms a barrier for the second output end (1901).

5. The automatic fastening assembly system for a current transformer according to claim 1, characterized in that: The screw supply station (9) and the washer supply station (10) are spaced apart along the X-axis, and the screw clamp (6), the washer jaw (7) and the conveyor belt (2) are arranged sequentially along the Y-axis.

6. The automatic fastening assembly system for a current transformer according to claim 3, characterized in that: The lifting drive unit includes a first cylinder (20) and a second cylinder (21) mounted on the slider (12). The telescopic end of the first cylinder (20) is connected to the gasket gripper (7). The telescopic end of the second cylinder (21) is guided and connected to the mounting plate (22) along the Z-axis. A spring (23) is fitted on the telescopic end of the second cylinder (21). The automatic screwdriver (8) is fixed to the mounting plate (22) and guided and connected to the slider (12) along the Z-axis by means of the mounting plate (22).

7. The automatic fastening and assembly system for a current transformer according to claim 6, characterized in that: The screw supply station (9) and the washer supply station (10) are respectively equipped with proximity switches (24) for detecting whether the screw (11) and washer are in place. The proximity switches (24) are connected to the controller signal. The controller is connected to the controlled end of the screw clamp (6), washer gripper (7), automatic screwdriver (8), lifting drive unit, translation mechanism (17) and slide module (5).

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