Electromagnetic valve assembly apparatus and method of operation thereof

Abstract

The application discloses a kind of electromagnetic valve assembly equipment and its working method, including assembly table, feeding mechanism, assembly mechanism and discharging mechanism, the feeding mechanism includes spring seat feeding machine, plunger feeding machine, sealing ring feeding machine and steel ball feeding machine, discharging mechanism is installed in one side of assembly table, spring seat feeding machine, plunger feeding machine, sealing ring feeding machine and steel ball feeding machine are respectively installed in the peripheral side of assembly table, assembly mechanism is installed in the inner side of spring seat feeding machine, plunger feeding machine, sealing ring feeding machine and steel ball feeding machine, realizes the automatic ordering and transport of various parts, by accurate positioning device and rotation mechanism, the accurate assembly of part is ensured, and the assembled electromagnetic valve assembly is automatically packed and buffered, and production efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of electromagnetic valve production line technology, and in particular to an electromagnetic valve assembly equipment and its working method. Background Technology

[0002] In the current field of solenoid valve assembly, although some automated equipment and technologies have been put into application, there are still many technical challenges and limitations. First, the feeding mechanism of existing automated assembly equipment is often single-function and cannot effectively cope with the feeding needs of various parts. Especially when the parts have large differences in shape, size, material and other characteristics, the feeding mechanism needs to be frequently replaced and adjusted, which greatly affects the continuity and efficiency of assembly.

[0003] In terms of assembly precision, existing equipment often relies on complex mechanical structures and control systems, which not only increases the manufacturing cost and maintenance difficulty of the equipment, but also makes it difficult to maintain stable assembly quality over a long period of time due to environmental factors such as equipment wear and temperature changes.

[0004] Existing automated assembly equipment often has shortcomings in the testing phase. Many devices lack effective testing mechanisms after assembly, or use simplistic testing methods that fail to comprehensively and accurately assess the performance and reliability of solenoid valves. This results in potential problems going undetected during the assembly stage, increasing risks during subsequent use.

[0005] To address the aforementioned problems, this invention proposes an automated solenoid valve assembly system. This system achieves automated feeding, precise positioning, assembly, testing, and unloading of solenoid valve parts through the coordinated operation of a feeding mechanism, an assembly mechanism, an unloading mechanism, and a testing mechanism. Summary of the Invention

[0006] The purpose of this invention is to solve the above-mentioned technical problems and provide a solenoid valve assembly equipment and its working method. This invention realizes the automatic sorting and conveying of various parts. Through a precise positioning device and rotation mechanism, it ensures the accurate assembly of parts and automatically loads and buffers the assembled solenoid valve components, thereby improving production efficiency.

[0007] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a solenoid valve assembly equipment, including an assembly table, a feeding mechanism, an assembly mechanism, and a discharging mechanism. The feeding mechanism includes a spring seat feeder, a plunger feeder, a sealing ring feeder, and a steel ball feeder. The discharging mechanism is installed on one side of the assembly table. The spring seat feeder, plunger feeder, sealing ring feeder, and steel ball feeder are respectively installed on the outer periphery of the assembly table. The assembly mechanism is installed on the inner side of the spring seat feeder, plunger feeder, sealing ring feeder, and steel ball feeder.

[0008] Preferably, the spring seat feeder includes a spring seat vibratory plate and a spring seat loading device, the number of which is 1-3. The spring seat vibratory plate is connected to the outside of the spring seat loading device, and the spring seat loading device is connected to the spring seat vibratory plate and the assembly mechanism.

[0009] Preferably, the plunger feeder includes a plunger vibrating plate and a plunger loading device, and the number of plunger vibrating plates is 2;

[0010] The plunger loading device includes a plunger transport gripper, a plunger positioning and shaping seat, and a plunger transport fixing seat. The plunger positioning and shaping seat and the plunger transport fixing seat are located on the side of the plunger transport gripper, the plunger vibrating plate is located on the side of the plunger positioning and shaping seat, and the plunger transport fixing seat is installed on the outside of the assembly mechanism.

[0011] Preferably, the sealing ring feeding machine includes a sealing ring vibrating plate and a sealing ring loading device. The number of sealing ring vibrating plates is 2. The sealing ring loading device includes a sealing ring conveying device and a sealing ring discharging device. The sealing ring conveying device is installed above the sealing ring vibrating plate and is connected to the sealing ring discharging device and the sealing ring vibrating plate. The sealing ring discharging device is installed outside the assembly mechanism.

[0012] Preferably, the steel ball feeding machine includes steel ball handling grippers, a steel ball hopper, and a steel ball feeding rack. The steel ball feeding rack connects the steel ball hopper and the assembly mechanism. The steel ball hopper is located outside the steel ball feeding rack. The steel ball feeding rack is equipped with a feeding suction pipe and a steel ball tray. The steel ball handling grippers connect the steel ball tray and the steel ball hopper for steel ball handling. The feeding suction pipe is installed above the steel ball tray to pick up steel balls and transfer them to the assembly mechanism.

[0013] Preferably, the assembly mechanism includes a central turntable and a valve seat positioning device disposed on the central turntable. A plunger loading device, a steel ball loading rack, a spring seat loading device, and a sealing ring discharging device are installed around the central turntable. A turntable rotation motor is installed at the bottom of the central turntable to drive the central turntable to rotate.

[0014] Preferably, a testing mechanism is also included, which is installed on the side of the sealing ring conveying device and connected to the unloading mechanism.

[0015] Preferably, the testing mechanism includes a solenoid valve testing fixture, a workpiece flipping device, and a testing and handling gripper. The number of solenoid valve testing fixtures is two. The solenoid valve testing fixtures are installed on one side of the sealing ring handling device, and the testing and handling gripper is installed above the solenoid valve testing fixtures. The testing and handling gripper moves between the solenoid valve testing fixtures and the central turntable. The workpiece flipping device is located between the unloading mechanism and the solenoid valve testing fixtures.

[0016] Preferably, the unloading mechanism includes a handling robot, an empty tray loading device, a transfer and palletizing device, and an unloading buffer device. The handling robot is connected to the workpiece flipping device and the transfer and palletizing device for handling. The empty tray loading device and the unloading buffer device are installed at both ends of the transfer and palletizing device. Positioning cameras are provided on the sides of the empty tray loading device, the transfer and palletizing device, and the unloading buffer device.

[0017] A working method applied to the solenoid valve assembly equipment, characterized by the following steps:

[0018] Step 1: First, the spring seat vibratory feeder is started. Through its internal vibration and sorting mechanism, the spring seat parts are arranged in a certain direction and order and output to the discharge port. Then, under the instruction of the control system, the grippers or suction cups of the spring seat loading device grab the spring seats from the discharge port of the vibratory feeder and move them to the predetermined station of the assembly mechanism. Through mechanical positioning or visual positioning, the spring seats are accurately placed in the preset position.

[0019] Step 2: The plunger vibratory feeder is also started, arranging and outputting the plunger parts in an orderly manner. Under the control of the control system, the plunger transport gripper grabs the plunger from the vibratory feeder and moves it to the plunger positioning and shaping seat. In the positioning and shaping seat, the plunger is positioned and shaped to ensure the accuracy of its position and posture. The gripper grabs the shaped plunger again and moves it to the corresponding station of the assembly mechanism.

[0020] Step 3: The sealing ring vibratory feeder is started, and the sealing rings are arranged and output in an orderly manner. Under the control of the control system, the sealing ring transport device grabs the sealing rings from the vibratory feeder and moves them to the sealing ring transfer table between the sealing ring transport device and the sealing ring discharge device, and then moves them to the corresponding workstation of the assembly mechanism.

[0021] Step 4: The steel ball handling gripper picks up the steel balls exported from the steel ball hopper and moves the steel ball loading rack to the steel ball tray. Under the control of the control system, the loading suction pipe takes the steel balls out of the steel ball tray and moves them to the predetermined station of the assembly mechanism. Through mechanical positioning or visual positioning, it is ensured that the steel balls are accurately placed in the corresponding positions of the solenoid valve assembly to the predetermined station of the assembly mechanism.

[0022] Step 5: The central turntable of the assembly mechanism starts to rotate under the drive of the turntable rotation motor. The central turntable has multiple stations, where the sealing ring, plunger, steel ball and spring seat are assembled in sequence. During the assembly process, the valve seat positioning device ensures the accurate positioning of the valve seat. Each component is assembled in sequence to form a complete solenoid valve assembly, which then reaches the test station.

[0023] Step Six: Under the command of the control system, the transport gripper picks up the assembled solenoid valve assembly from the assembly mechanism and transports it to the testing mechanism. The solenoid valve testing fixture performs functional tests on the solenoid valve assembly. After the test is completed, the workpiece flipping device flips the workpiece for unloading.

[0024] Step 7: The empty tray loading device transports empty trays to the equipment and then to the transfer and palletizing device. Under the control of the control system, the handling robot transports the qualified solenoid valve components from the testing mechanism to the trays on the transfer and palletizing device until they are full. After the positioning camera detects that the tray is full, the transfer and palletizing device switches the tray from the track of the empty tray loading device to the track of the unloading buffer device. The unloading buffer device is used to temporarily store the loaded trays, waiting for further processing or packaging.

[0025] The beneficial effects of this invention are:

[0026] 1. This invention realizes the full automation of solenoid valve assembly, from parts loading, positioning, assembly to testing and unloading, reducing manual operation and improving the automation level of the production line. Each station is equipped with a positioning structure. Through precise positioning devices and testing mechanisms, the accuracy and quality of solenoid valve assembly are ensured, the defect rate is reduced, and product competitiveness is improved.

[0027] 2. The automated assembly system greatly improves assembly speed, shortens production cycle, and increases production efficiency, meeting the market's large demand for solenoid valves, reducing manual intervention, lowering labor costs, and improving production efficiency, thereby reducing production costs. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0030] Figure 3 This is a schematic diagram of the sealing ring feeding machine of the present invention;

[0031] Figure 4 This is a schematic diagram of the testing mechanism of the present invention;

[0032] Figure 5 This is a schematic diagram of the testing mechanism of the present invention from another angle;

[0033] Figure 6 This is a schematic diagram of the steel ball feeding machine of the present invention;

[0034] Figure 7 This is a schematic diagram of the plunger feeder and assembly mechanism of the present invention;

[0035] Figure 8 This is a schematic diagram of the feeding mechanism of the present invention.

[0036] In the diagram: 1. Assembly table; 2. Feeding mechanism; 21. Spring seat feeder; 211. Spring seat vibratory feeder; 212. Spring seat loading device; 22. Plunger feeder; 221. Plunger vibratory feeder; 222. Plunger loading device; 2221. Plunger handling gripper; 2222. Plunger positioning and shaping seat; 2223. Plunger handling fixing seat; 23. Sealing ring feeder; 231. Sealing ring vibratory feeder; 232. Sealing ring loading device; 2321. Sealing ring handling device; 2322. Sealing ring discharging device. 24. Steel ball feeder; 241. Steel ball handling gripper; 242. Steel ball hopper; 243. Steel ball feeding rack; 2431. Feeding suction pipe; 2432. Steel ball tray; 3. Assembly mechanism; 31. Central turntable; 32. Valve seat positioning device; 4. Unloading mechanism; 41. Handling robot; 42. Empty tray loading device; 43. Transfer and tray loading device; 44. Unloading buffer device; 5. Testing mechanism; 51. Solenoid valve testing fixture; 52. Fixture flipping device; 53. Testing and handling gripper; 6. Positioning camera. Detailed Implementation

[0037] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0038] like Figure 1-8 As shown, the present invention includes an assembly table 1, a feeding mechanism 2, an assembly mechanism 3, and a discharging mechanism 4. The feeding mechanism 2 includes a spring seat feeder 21, a plunger feeder 22, a sealing ring feeder 23, and a steel ball feeder 24. The discharging mechanism 4 is installed on one side of the assembly table 1. The spring seat feeder 21, the plunger feeder 22, the sealing ring feeder 23, and the steel ball feeder 24 are respectively installed on the outer periphery of the assembly table 1. The assembly mechanism 3 is installed on the inner side of the spring seat feeder 21, the plunger feeder 22, the sealing ring feeder 23, and the steel ball feeder 24.

[0039] By adopting the above technical solution and integrating feeding mechanisms such as the spring seat feeder 21, plunger feeder 22, sealing ring feeder 23, and steel ball feeder 24, the automatic feeding of various components required for solenoid valve assembly is achieved. These feeders are installed on the outer periphery of the assembly table 1, enabling the entire assembly process to proceed efficiently and continuously, significantly improving assembly efficiency. Arranging the feeding mechanisms around the periphery of the assembly table not only makes the assembly process more compact but also optimizes the spatial layout of the production line, making it easier for operators to monitor and maintain the equipment, while also contributing to improved overall production efficiency.

[0040] The spring seat feeder 21 includes a spring seat vibratory plate 211 and a spring seat loading device 212. The number of spring seat loading devices 212 is 1-3. The spring seat vibratory plate 211 is connected to the outside of the spring seat loading device 212. The spring seat loading device 212 is connected to the spring seat vibratory plate 211 and the assembly mechanism 3.

[0041] By adopting the above technical solution, the number of spring seat loading devices 212 is designed to be 1-3, which provides loading flexibility. According to production needs, one loading device can be selected for single-path feeding, or multiple loading devices can be selected for multi-path parallel feeding, thereby further improving feeding efficiency and assembly speed.

[0042] The plunger feeder 22 includes a plunger vibratory plate 221 and a plunger loading device 222, and the number of plunger vibratory plates 221 is 2;

[0043] The plunger loading device 222 includes a plunger transport gripper 2221, a plunger positioning and shaping seat 2222, and a plunger transport fixing seat 2223. The plunger positioning and shaping seat 2222 and the plunger transport fixing seat 2223 are disposed on the side of the plunger transport gripper 2221, the plunger vibrating plate 221 is disposed on the side of the plunger positioning and shaping seat 2222, and the plunger transport fixing seat 2223 is installed on the outside of the assembly mechanism 3.

[0044] By adopting the above technical solution, in the plunger loading device 222, the plunger transport gripper 2221 is responsible for grabbing the plunger from the vibratory plate and accurately transporting it to the designated position. The plunger positioning and shaping seat 2222 precisely positions and shapes the transported plunger to ensure its correct position and posture, preparing it for subsequent assembly work. The plunger transport fixing seat 2223 not only provides stable support for the transport gripper but also ensures the smoothness and accuracy during the transport process. Installed on the outside of the assembly mechanism 3, it tightly integrates the entire loading device with the assembly mechanism, forming an efficient and stable assembly unit. Through the precise positioning and shaping of the plunger positioning and shaping seat 2222 and the stable support of the transport gripper and fixing seat, it is ensured that each plunger can be assembled into the solenoid valve in the correct posture and position, thereby improving the accuracy and consistency of the assembly.

[0045] The sealing ring feeding machine 23 includes a sealing ring vibrating plate 231 and a sealing ring loading device 232. There are two sealing ring vibrating plates 231. The sealing ring loading device 232 includes a sealing ring conveying device 2321 and a sealing ring discharging device 2322. The sealing ring conveying device 2321 is installed above the sealing ring vibrating plate 231. The sealing ring conveying device 2321 connects the sealing ring discharging device 2322 and the sealing ring vibrating plate 231. The sealing ring discharging device 2322 is installed on the outside of the assembly mechanism 3.

[0046] By adopting the above technical solution, the number of sealing ring vibratory feeders 231 is 2, realizing dual-path parallel feeding, which greatly improves the feeding efficiency. The sealing ring handling device 2321 is installed above the sealing ring vibratory feeder 231, which is responsible for accurately grabbing the neatly arranged sealing rings in the vibratory feeder and transporting them to the sealing ring discharge device 2322, ensuring the accuracy and stability of the sealing rings during the handling process and avoiding damage or misalignment.

[0047] The steel ball feeder 24 includes a steel ball handling gripper 241, a steel ball hopper 242, and a steel ball feeding rack 243. The steel ball feeding rack 243 connects the steel ball hopper 242 and the assembly mechanism 3. The steel ball hopper 242 is located outside the steel ball feeding rack 243. The steel ball feeding rack 243 is equipped with a feeding suction pipe 2431 and a steel ball tray 2432. The steel ball handling gripper 241 connects the steel ball tray 2432 and the steel ball hopper 242 to handle steel balls. The feeding suction pipe 2431 is installed above the steel ball tray 2432 to pick up steel balls and transfer them to the assembly mechanism 3.

[0048] By adopting the above technical solution, the steel ball feeding rack 243 serves as a bridge connecting the steel ball storage and the assembly mechanism. The feeding suction pipe 2431 installed on it can accurately pick up the steel balls in the steel ball tray 2432 and accurately transfer them to the assembly mechanism 3, ensuring the accurate positioning of the steel balls during the feeding process, avoiding problems such as misalignment or falling, and improving the accuracy of assembly.

[0049] The assembly mechanism 3 includes a central turntable 31 and a valve seat positioning device 32 disposed on the central turntable 31. A plunger loading device 222, a steel ball loading rack 243, a spring seat loading device 212, and a sealing ring discharging device 232 are installed around the central turntable 31. A turntable rotation motor is installed at the bottom of the central turntable 31 to drive the central turntable 31 to rotate.

[0050] By adopting the above technical solution, the assembly mechanism 3 integrates the central turntable 31, the valve seat positioning device 32, and various loading devices, achieving a high degree of automation in the solenoid valve assembly process. The central turntable 31, as the core of the assembly, rotates to drive the various loading devices and the valve seat positioning device 32 to work together, completing each assembly step of the solenoid valve. The valve seat positioning device 32 ensures the accurate positioning of the valve seat during the assembly process, providing a stable reference for subsequent parts assembly.

[0051] It also includes a testing mechanism 5, which is installed on the side of the sealing ring transport device 2321 and is connected to the unloading mechanism 4.

[0052] By adopting the above technical solution, the testing organization 5 can immediately perform performance testing on the solenoid valve after assembly, avoiding the need for separate testing after assembly.

[0053] The testing mechanism 5 includes a solenoid valve testing fixture 51, a workpiece flipping device 52, and a testing and handling gripper 53. There are two solenoid valve testing fixtures 51. The solenoid valve testing fixtures 51 are installed on one side of the sealing ring handling device 2321. The testing and handling gripper 53 is installed above the solenoid valve testing fixtures 51. The testing and handling gripper 53 moves between the solenoid valve testing fixtures 51 and the central turntable 31. The workpiece flipping device 52 is located between the unloading mechanism 4 and the solenoid valve testing fixtures 51.

[0054] By adopting the above technical solution, the workpiece flipping device 52 is set between the unloading mechanism 4 and the solenoid valve testing fixture 51, enabling the solenoid valve to be flipped. This flipping function allows all parts of the solenoid valve to be tested, thereby ensuring the comprehensiveness and accuracy of the test. The test transport gripper 53 is responsible for transporting the solenoid valve between the solenoid valve testing fixture 51 and the central turntable 31. The automated transport method reduces the intervention of manual operation, improves the accuracy and consistency of the test, and at the same time, the rapid and accurate movement of the transport gripper further improves the test efficiency.

[0055] The unloading mechanism 4 includes a handling robot 41, an empty tray loading device 42, a transfer and palletizing device 43, and an unloading buffer device 44. The handling robot 41 is connected to the workpiece flipping device 52 and the transfer and palletizing device 43 for handling. The empty tray loading device 42 and the unloading buffer device 44 are installed at both ends of the transfer and palletizing device 43. Positioning cameras 6 are provided on the sides of the empty tray loading device 42, the transfer and palletizing device 43, and the unloading buffer device 44.

[0056] By adopting the above technical solutions, the empty tray feeding device 42 can automatically provide empty trays to the transfer and palletizing device 43, so that the palletizing process does not require manual intervention, which improves the automation level of material management. The unloading buffer device 44 can temporarily store the unloaded solenoid valves, which facilitates subsequent packaging or transportation, further optimizing the material flow process. The setting of the positioning camera 6 enables the empty tray feeding device 42, the transfer and palletizing device 43 and the unloading buffer device 44 to accurately locate and identify the solenoid valves.

[0057] A working method applied to the solenoid valve assembly equipment, characterized by the following steps:

[0058] Step 1: First, the spring seat vibratory feeder 211 is started. Through its internal vibration and sorting mechanism, the spring seat parts are arranged in a certain direction and order and output to the discharge port. Then, under the instruction of the control system, the gripper or suction cup of the spring seat loading device 212 grabs the spring seat from the discharge port of the vibratory feeder and moves it to the predetermined station of the assembly mechanism 3. Through mechanical positioning or visual positioning, the spring seat is accurately placed in the preset position.

[0059] Step 2: The plunger vibratory feeder 221 is also started, arranging and outputting the plunger parts in an orderly manner. Under the control of the control system, the plunger transport gripper 2221 grabs the plunger from the vibratory feeder and moves it to the plunger positioning and shaping seat 2222. In the positioning and shaping seat, the plunger is positioned and shaped to ensure the accuracy of its position and posture. The gripper grabs the shaped plunger again and moves it to the corresponding station of the assembly mechanism 3.

[0060] Step 3: The sealing ring vibratory feeder 231 is started, and the sealing rings are arranged in an orderly manner and output. Under the control of the control system, the sealing ring transport device 2321 grabs the sealing rings from the vibratory feeder and moves them to the sealing ring transfer table between the sealing ring transport device 2321 and the sealing ring discharge device 2322, and moves them to the corresponding station of the assembly mechanism 3.

[0061] Step 4: The steel ball transport gripper 241 picks up the steel ball exported from the steel ball storage 242 and moves the steel ball loading rack 243 to the steel ball tray 2432. Under the control of the control system, the loading suction pipe takes the steel ball out of the steel ball tray 2432 and moves it to the predetermined station of the assembly mechanism 3. Through mechanical positioning or visual positioning, it is ensured that the steel ball is accurately placed in the corresponding position of the solenoid valve assembly to the predetermined station of the assembly mechanism 3.

[0062] Step 5: The central turntable 31 of the assembly mechanism 3 starts to rotate under the drive of the turntable rotation motor. The central turntable has multiple stations, and the sealing ring, plunger, steel ball and spring seat are assembled in sequence. During the assembly process, the valve seat positioning device 32 ensures the accurate positioning of the valve seat. Each component is assembled in sequence to form a complete solenoid valve assembly and arrive at the test station.

[0063] Step Six: Under the instruction of the control system, the test transport gripper 53 picks up the assembled solenoid valve assembly from the assembly mechanism 3 and transports it to the test mechanism 5. The solenoid valve test fixture 51 performs a functional test on the solenoid valve assembly. After the test is completed, the workpiece flipping device 52 flips the workpiece for discharge.

[0064] Step 7: The empty tray loading device 42 transports the empty trays to the equipment and then to the transfer and loading device 43. Under the control of the control system, the handling robot 41 transports the qualified solenoid valve components from the testing mechanism 5 to the trays on the transfer and loading device 43 until they are full. After the positioning camera 6 detects that the trays are full, the transfer and loading device 43 switches the trays from the track of the empty tray loading device 42 to the track of the unloading buffer device 44. The unloading buffer device 44 is used to temporarily store the loaded trays, waiting for further processing or packaging.

[0065] The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0066] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A solenoid valve assembly device, characterized in that: The assembly includes an assembly table (1), a feeding mechanism (2), an assembly mechanism (3), and a discharging mechanism (4). The feeding mechanism (2) includes a spring seat feeder (21), a plunger feeder (22), a sealing ring feeder (23), and a steel ball feeder (24). The discharging mechanism (4) is installed on one side of the assembly table (1). The spring seat feeder (21), the plunger feeder (22), the sealing ring feeder (23), and the steel ball feeder (24) are respectively installed on the outer side of the assembly table (1). The assembly mechanism (3) is installed on the inner side of the spring seat feeder (21), the plunger feeder (22), the sealing ring feeder (23), and the steel ball feeder (24). The spring seat feeder (21) includes a spring seat vibrating plate (211) and a spring seat loading device (212). The number of spring seat loading devices (212) is 1-3. The spring seat vibrating plate (211) is connected to the outside of the spring seat loading device (212). The spring seat loading device (212) is connected to the spring seat vibrating plate (211) and the assembly mechanism (3). The plunger feeder (22) includes a plunger vibratory plate (221) and a plunger loading device (222), and the number of plunger vibratory plates (221) is 2; The plunger loading device (222) includes a plunger transport gripper (2221), a plunger positioning and shaping seat (2222), and a plunger transport fixing seat (2223). The plunger positioning and shaping seat (2222) and the plunger transport fixing seat (2223) are located on the side of the plunger transport gripper (2221), the plunger vibrating plate (221) is located on the side of the plunger positioning and shaping seat (2222), and the plunger transport fixing seat (2223) is installed on the outside of the assembly mechanism (3). The sealing ring feeding machine (23) includes a sealing ring vibrating plate (231) and a sealing ring loading device (232). The number of sealing ring vibrating plates (231) is 2. The sealing ring loading device (232) includes a sealing ring conveying device (2321) and a sealing ring discharging device (2322). The sealing ring conveying device (2321) is installed above the sealing ring vibrating plate (231). The sealing ring conveying device (2321) is connected to the sealing ring discharging device (2322) and the sealing ring vibrating plate (231). The sealing ring discharging device (2322) is installed outside the assembly mechanism (3). The steel ball feeder (24) includes a steel ball handling gripper (241), a steel ball hopper (242), and a steel ball feeding rack (243). The steel ball feeding rack (243) connects the steel ball hopper (242) and the assembly mechanism (3). The steel ball hopper (242) is located on the outside of the steel ball feeding rack (243). The steel ball feeding rack (243) is equipped with a feeding suction pipe (2431) and a steel ball tray (2432). The steel ball handling gripper (241) connects the steel ball tray (2432) and the steel ball hopper (242) to handle steel balls. The feeding suction pipe (2431) is installed above the steel ball tray (2432) to pick up steel balls and transfer them to the assembly mechanism (3). The assembly mechanism (3) includes a central turntable (31) and a valve seat positioning device (32) set on the central turntable (31). A plunger loading device (222), a steel ball loading rack (243), a spring seat loading device (212) and a sealing ring loading device (232) are installed around the central turntable (31). A turntable rotation motor is installed at the bottom of the central turntable (31) to drive the central turntable (31) to rotate. It also includes a testing mechanism (5), which is installed on the side of the sealing ring transport device (2321) and is connected to the unloading mechanism (4); The testing mechanism (5) includes a solenoid valve testing fixture (51), a workpiece flipping device (52), and a testing and handling gripper (53). There are two solenoid valve testing fixtures (51). The solenoid valve testing fixture (51) is installed on one side of the sealing ring handling device (2321). The testing and handling gripper (53) is installed above the solenoid valve testing fixture (51). The testing and handling gripper (53) moves between the solenoid valve testing fixture (51) and the central turntable (31). The workpiece flipping device (52) is located between the unloading mechanism (4) and the solenoid valve testing fixture (51).

2. The solenoid valve assembly equipment according to claim 1, characterized in that: The unloading mechanism (4) includes a handling robot (41), an empty tray loading device (42), a transfer and palletizing device (43), and an unloading buffer device (44). The handling robot (41) is connected to the workpiece flipping device (52) and the transfer and palletizing device (43) for handling. The empty tray loading device (42) and the unloading buffer device (44) are installed at both ends of the transfer and palletizing device (43). The empty tray loading device (42), the transfer and palletizing device (43), and the unloading buffer device (44) are all equipped with positioning cameras (6) on their sides.

3. A method of operating the solenoid valve assembly equipment according to claim 1 or 2, characterized in that: Specifically, the following steps are included: Step 1: First, the spring seat vibratory feeder (211) is started. Through its internal vibration and sorting mechanism, the spring seat parts are arranged in a certain direction and order and output to the discharge port. Then, under the instruction of the control system, the gripper or suction cup of the spring seat loading device (212) grabs the spring seat from the discharge port of the vibratory feeder and moves it to the predetermined station of the assembly mechanism (3). Through mechanical positioning or visual positioning, the spring seat is accurately placed in the preset position. Step 2: The plunger vibratory feeder (221) is also started, and the plunger parts are arranged and output in an orderly manner. Under the control of the control system, the plunger transport gripper (2221) grabs the plunger from the vibratory feeder and moves it to the plunger positioning and shaping seat (2222). In the positioning and shaping seat, the plunger is positioned and shaped to ensure the accuracy of its position and posture. The gripper grabs the shaped plunger again and moves it to the corresponding station of the assembly mechanism (3). Step 3: The sealing ring vibratory feeder (231) is started, and the sealing rings are arranged in an orderly manner and output. Under the control of the control system, the sealing ring transport device (2321) grabs the sealing rings from the vibratory feeder and moves them to the sealing ring transfer table between the sealing ring transport device (2321) and the sealing ring discharge device (2322), and moves them to the corresponding station of the assembly mechanism (3). Step 4: The steel ball handling gripper (241) picks up the steel ball exported from the steel ball storage (242) and moves the steel ball loading rack (243) to the steel ball tray (2432). Under the control of the control system, the loading suction pipe takes the steel ball out of the steel ball tray (2432) and moves it to the predetermined station of the assembly mechanism (3). Through mechanical positioning or visual positioning, it is ensured that the steel ball is accurately placed in the corresponding position of the solenoid valve assembly to the predetermined station of the assembly mechanism (3). Step 5: The central turntable (31) of the assembly mechanism (3) starts to rotate under the drive of the turntable rotation motor. The central turntable has multiple stations, and the sealing ring, plunger, steel ball and spring seat are assembled in sequence. During the assembly process, the valve seat positioning device (32) ensures the accurate positioning of the valve seat. Each component is assembled in sequence to form a complete solenoid valve assembly and arrive at the test station. Step 6: Test the transport gripper (53) Under the instruction of the control system, it grabs the assembled solenoid valve assembly from the assembly mechanism (3) and transports it to the test mechanism (5). The solenoid valve test fixture (51) performs a functional test on the solenoid valve assembly. After the test is completed, the workpiece flipping device (52) flips the workpiece for discharge. Step 7: The empty tray loading device (42) transports the empty trays to the equipment and then to the transfer tray loading device (43). Under the control of the control system, the handling robot (41) transports the qualified solenoid valve components from the testing mechanism (5) to the trays on the transfer tray loading device (43) until they are full. After the positioning camera (6) detects that the trays are full, the transfer tray loading device (43) switches the trays from the track of the empty tray loading device (42) to the track of the unloading buffer device (44). The unloading buffer device (44) is used to temporarily store the loaded trays for further processing or packaging.

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