An assembly and detection device and method compatible with two types of solenoid valve structures

Abstract

The present invention discloses an assembly and inspection device and method for solenoid valves compatible with two structures. The device belongs to valve assembly and inspection equipment, and includes a valve sleeve assembly module. The valve sleeve assembly module includes a valve seat assembly component for installing the valve seat of the oil supply valve, a welding component for welding the oil supply valve, and a valve sleeve assembly component for installing the valve sleeves of the oil supply valve and the liquid outlet valve. The device can assemble and inspect solenoid valves of different models without the need for modification or additional equipment, solving the problem in the prior art that the existing solenoid valve assembly and inspection equipment can only assemble and inspect one type of solenoid valve. If two types of solenoid valves are to be assembled, the number of equipment needs to be increased, or the equipment needs to be modified to complete the assembly, resulting in reduced production efficiency or increased costs.

Description

Technical Field

[0001] The present invention relates to a brake-by-wire solenoid valve for new energy vehicles, and in particular to an assembly and detection device and method for solenoid valves compatible with two structures. Background Art

[0002] Brake-by-wire is a key technology for intelligent, drive-by-wire chassis. It eschews traditional mechanical vacuum braking and instead utilizes core modules—such as sensors, solenoid valves, and motor modules—along with control algorithms to sense the driver's braking intent and adaptively adjust the brake fluid pressure for faster response and more accurate control. Brake-by-wire technology is an inevitable trend in future vehicles, and its core components, such as solenoid valves and motor modules, are often highly sophisticated. For example, solenoid valves, which control wheel cylinder pressure through valve opening and closing, are crucial to the braking system's response speed. Solenoid valves, the core control component of brake-by-wire systems, can be categorized as either normally open or normally closed, depending on their structure. In the automated assembly equipment for solenoid valves, the first step is generally to press-fit a steel ball onto the armature. There are many devices available in the prior art for automatically assembling solenoid valves. General automated assembly equipment only assembles one type of product. To produce multiple products, new equipment is required, or the original equipment must be modified, or tooling must be replaced. However, some manufacturers, such as auto parts valve assemblers, often need to produce and sell a variety of valves in a coordinated manner, which often requires equipment shutdown for modification, or requires multiple devices to produce different solenoid valves, resulting in reduced production efficiency and increased production costs.

[0003] For example, the "A ball valve pipe fitting automatic assembly equipment and its assembly detection method" disclosed in the Chinese patent literature has a publication number of CN112894349A. The equipment includes a workbench and a control device for controlling the ball valve pipe fitting automatic assembly equipment. The workbench is provided with a circular workstation turntable driven by a turntable motor; the circular workstation turntable is provided with a plurality of workstations, each of which is provided with a tooling fixture compatible with the ball valve pipe fitting, and the circular workstation turntable is surrounded by an accessory loading mechanism, a gasket feeding assembly mechanism, a valve stem feeding assembly mechanism, a valve stem detection mechanism, a ball valve core feeding assembly mechanism, a valve cover dispensing mechanism, a valve body and valve cover assembly mechanism, and a finished product unloading mechanism. This invention makes extensive use of automated machinery to realize functions such as assembly and inspection of valve bodies, gaskets, valve stems, valve cores and valve covers, reducing the work site, saving a lot of labor and production costs, greatly improving productivity, and effectively improving product consistency and pass rate; however, the shortcoming of this invention is that each of its assembly and inspection stations can only be used for the assembly process of the same product. If it is to be used to produce different types of valves, it needs to be modified. Summary of the Invention

[0004] The present invention is intended to overcome the problem in the prior art that the existing solenoid valve assembly and testing equipment can only perform assembly and testing on one type of solenoid valve. If two types of solenoid valves are to be assembled, the number of equipment needs to be increased, or the equipment needs to be modified to complete the assembly, resulting in reduced production efficiency or increased costs. The present invention provides an assembly and testing device and method that is compatible with solenoid valves of two structures, which can assemble and test solenoid valves of different models without the need to modify or increase equipment.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The present invention provides an assembly and inspection device compatible with two types of solenoid valves, including a valve sleeve assembly module, the valve sleeve assembly module including a valve seat assembly assembly for installing the oil supply valve, a welding assembly for welding the oil supply valve, and a valve sleeve assembly assembly for installing the valve sleeve of the oil supply valve and the liquid outlet valve, the welding assembly including an armature valve seat precision pressing assembly, the armature valve seat precision pressing assembly including a precision pressing head, the valve seat assembly assembly including a valve seat assembly transfer station and a valve seat assembly offline station, the valve seat assembly transfer station including a valve seat transfer loading station and a valve seat transfer unloading station, the welding assembly including a liquid outlet valve online station, the valve seat assembly assembly including a first transfer assembly for loading a workpiece from the valve seat transfer unloading station to the liquid outlet valve online station, and a second transfer assembly for loading a workpiece from the valve seat assembly offline station to the precision pressing head.

[0007] The structural difference between the oil supply valve and the liquid outlet valve that need to be assembled in the present application is that the steel ball at the armature end of the liquid outlet valve directly forms a seal, while the steel ball at the armature end of the oil supply valve indirectly achieves a seal by pressing the valve seat. Therefore, the main difference in the assembly process of the two solenoid valves is that the oil supply valve needs to be assembled with a sleeve, a secondary spring, and a valve seat after the armature assembly is assembled and before the valve sleeve assembly is welded; when assembling the liquid outlet valve in the present application, the armature assembly of the liquid outlet valve is loaded from the valve seat transfer loading station, and is directly unloaded from the valve seat transfer unloading station without going through the assembly steps of each station in the valve seat assembly assembly and the welding assembly, and is The loading assembly is transferred to the liquid outlet valve on-line station; when assembling the oil supply valve, the armature assembly of the oil supply valve is loaded from the valve seat transfer loading station and directly placed in the assembled ferrule, auxiliary spring and valve seat, and then directly transferred to the precision pressing head for precision pressing through the second transfer assembly; this device can assemble and test solenoid valves of different models without the need for modification or additional equipment, and can simultaneously assemble and test the oil supply valve and the liquid outlet valve as needed. When testing the oil supply valve and the liquid outlet valve at the same time, the device can avoid forming a bottleneck station at the welding station that takes a long time, thereby greatly improving the efficiency of assembly.

[0008] Preferably, the valve seat assembly component includes a valve seat assembly rotary table, on which a number of valve seat assembly tools are installed. The outer side of the valve seat assembly rotary table includes a ferrule loading station, an auxiliary spring loading station, a valve seat shaping loading station, a spring force detection station, the valve seat transfer loading station, the valve seat assembly offline station, and the valve seat transfer unloading station in a counterclockwise direction in the circumferential direction; the ferrule loading station, the auxiliary spring loading station, and the valve seat shaping loading station can assemble the ferrule, auxiliary spring, and valve seat into a valve seat ferrule assembly; the adjacent valve seat transfer loading station and the valve seat assembly offline station can ensure that the transportation of the liquid discharge valve armature assembly will not interfere with the assembly and transportation of the oil supply valve components.

[0009] Preferably, the welding assembly includes a welding rotary table, on which several welding tools are installed. The outer side of the welding rotary table includes the liquid outlet valve on-line station, the armature valve seat precision pressing station, the laser welding station, the dust removal station, the stroke remeasurement station, and the welding assembly off-line station in a clockwise direction in the circumferential direction. A third transfer assembly is installed between the welding assembly off-line station and the valve sleeve assembly assembly. When the oil supply valve is assembled and tested or the two solenoid valves are assembled and tested at the same time, the welding rotary table rotates clockwise. When the liquid outlet valve is assembled and tested, the welding-related stations can be skipped by changing the rotation direction of the welding rotary table to counterclockwise, thereby reducing the stroke of the liquid outlet valve.

[0010] Preferably, the laser welding station includes a welding rotating frame, and a first rotating gripper and a second rotating gripper are respectively installed at both ends of the welding rotating frame; through this structure, the welding tooling at the laser welding station can be directly moved to the next station without waiting for the welding to be completed, and the armature valve seat assembly after welding is completed can be installed on the next welding tooling, thereby greatly reducing the time spent at the laser welding station and improving the overall efficiency of the equipment.

[0011] Preferably, the assembly and detection equipment of the solenoid valve also includes an armature assembly module located upstream of the valve sleeve assembly module, and an armature assembly transfer assembly is installed between the armature assembly module and the valve sleeve assembly module, and the armature assembly transfer assembly is provided with a first rotating seat; the first rotating seat can invert the armature assembly and directly install it into the valve seat sleeve assembly.

[0012] Preferably, the second transfer assembly includes a second unloading assembly, a transverse transfer assembly, a longitudinal transfer assembly, and a second loading assembly. Both the transverse transfer assembly and the second loading assembly are provided with a buffer mounting seat. The second unloading assembly includes a second unloading gripper for transporting the armature valve seat assembly to the transverse transfer assembly. The longitudinal transfer assembly includes a longitudinal transfer gripper for transporting the armature valve seat assembly from the transverse transfer assembly to the second loading assembly. This structure divides the transport stroke of the armature valve seat into four sections, avoiding the situation where the transport stroke is too long, making it difficult to design the cylinder position.

[0013] Preferably, a missing installation judgment sensor and a model judgment sensor for detecting the solenoid valve on the welding tool are installed on the welding rotary table, and the model judgment sensor is located on the upper side of the missing installation judgment sensor; since the upper end position of the liquid outlet valve accessory is higher than the upper end position of the oil supply valve accessory when it is installed in the welding tool, when the missing installation judgment sensor detects a signal and the model judgment sensor does not detect a signal, it indicates that the location is the oil supply valve accessory, thereby timely detecting the error and avoiding incorrect processing.

[0014] Preferably, the assembly and inspection equipment of the solenoid valve includes, in sequence, an armature assembly module, the valve sleeve assembly module, a valve body assembly module, an assembly module, a stroke setting welding module, and a filter assembly inspection module.

[0015] An assembly inspection method for solenoid valves compatible with two structures is implemented using the above-mentioned assembly inspection equipment, and includes the following steps:

[0016] ① In the armature assembly module, after the armature is loaded, the steel ball is riveted onto the armature to form the armature assembly;

[0017] ② When the assembly and inspection of the liquid outlet valve is carried out, the armature assembly is transported to the valve sleeve assembly module, skips the assembly processing stations on the valve seat assembly and welding assembly, and then moves to the valve sleeve assembly station, where it is assembled to form an armature valve sleeve assembly. When the assembly and inspection of the oil supply valve is carried out, the valve seat assembly tool assembles the valve seat, auxiliary spring, and ferrule together to form a valve seat ferrule assembly. After the armature assembly is transported to the valve sleeve assembly module, it is directly installed in the valve seat ferrule assembly to form an armature valve seat assembly. The armature valve seat assembly is transferred to the precision pressing head and then precision pressing, welding, dust removal, and stroke retest are carried out in sequence. It is then moved to the valve sleeve assembly module and assembled to form an armature valve sleeve assembly.

[0018] ③ After the armature valve sleeve assembly is transported to the valve body assembly module, it undergoes valve body loading and press-fitting, product flipping, spring loading, and spring testing to form an armature valve body assembly;

[0019] ④ After the armature valve body assembly is transported to the assembly module, it undergoes the following steps: pre-pressing the retaining iron, loading the retaining ring, and pressing the retaining ring to form an assembly component;

[0020] ⑤ After the assembly is transported to the stroke setting welding module, it undergoes stroke setting, welding, cooling, stroke retesting, and leakage testing, and then is transported to the filter assembly inspection module and assembled into a solenoid valve.

[0021] Therefore, the present invention has the following beneficial effects: (1) the liquid outlet valve or the oil supply valve can be assembled and tested without modifying or adding equipment, and the liquid outlet valve and the oil supply valve can be assembled and tested at the same time; (2) when the liquid outlet valve and the oil supply valve are assembled and tested at the same time, the formation of a bottleneck station at a time-consuming welding station can be avoided, thereby greatly improving the efficiency of assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic top view of the present invention.

[0023] Figure 2 It is a top view schematic diagram of the valve sleeve assembly assembly module of the present invention.

[0024] Figure 3 It is a top view schematic diagram of the valve seat assembly component of the present invention.

[0025] Figure 4 It is a top view schematic diagram of the welding assembly of the present invention.

[0026] Figure 5 It is a structural schematic diagram of the second transfer assembly of the present invention.

[0027] Figure 6 It is a structural schematic diagram of the armature valve seat precision pressing station of the present invention.

[0028] Figure 7 It is a structural schematic diagram of the laser welding station of the present invention.

[0029] In the figure: 1. Armature assembly module 2. Valve sleeve assembly module 3. Valve body assembly module 4. Assembly module 5. Stroke setting welding module 6. Filter assembly inspection module.

[0030] 2-a, valve seat assembly component 2-b, welding component 2-c, valve sleeve assembly component 2-1, ferrule loading station 2-2, auxiliary spring loading station 2-3, valve seat shaping loading station 2-4, spring force detection station 2-5, valve seat transfer loading station 2-6, valve seat assembly offline station 2-7, valve seat transfer unloading station 2-8, liquid outlet valve online station 2-9, armature valve seat precision pressing station 2-10, laser welding station 2-11, dust removal station 2-12, stroke remeasurement station 2-13 welding assembly offline station 2-14, first transfer assembly 2-15, second transfer assembly 2-16, third transfer assembly 2-17, fourth transfer assembly.

[0031] 2-15-a, the second unloading component 2-15-b, the lateral transfer component 2-15-c, the longitudinal transfer component 2-15-d, the second loading component 2-15-1, the buffer mounting seat 2-15-2, the second unloading gripper 2-15-3, and the longitudinal transfer gripper.

[0032] 2-10-1, welding rotating frame 2-10-2, first rotating gripper 2-10-3, second rotating gripper 2-10-4, laser generator 2-10-5, welding cover. DETAILED DESCRIPTION

[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0034] like Figure 1-7 In the embodiment shown, an assembly and inspection device compatible with two types of solenoid valves includes, in sequence, an armature assembly module 1, a valve sleeve assembly module 2, a valve body assembly module 3, an assembly module 4, a stroke setting welding module 5, and a filter assembly inspection module 6.

[0035] The valve sleeve assembly module includes a valve seat assembly component 2-a for installing the oil supply valve, a welding component 2-b for welding the oil supply valve, and a valve sleeve assembly component 2-c for installing the valve sleeve of the oil supply valve and the liquid outlet valve. The valve seat assembly component includes a valve seat assembly rotating table, on which are installed a number of valve seat assembly tools evenly distributed in the circumference. The valve seat assembly tool is an oil supply valve seat assembly tool. The valve seat assembly rotating table is also equipped with a number of outlet valves with the same number of oil supply valve seat assembly tools and installed at intervals. Liquid valve transfer tooling, that is, a liquid outlet valve transfer tooling is installed between two adjacent oil supply valve seat assembly toolings, and a liquid supply valve seat assembly tooling is installed between two adjacent oil outlet valve transfer toolings. The outer side of the valve seat assembly rotary table includes the ferrule loading station 2-1, auxiliary spring loading station 2-2, valve seat shaping loading station 2-3, spring force detection station 2-4, valve seat transfer loading station 2-5, valve seat assembly offline station 2-6, valve seat transfer unloading station 2-7, welding The assembly includes a welding rotary table, on which a number of welding tools are evenly distributed in the circumferential direction. The welding tools are oil supply valve welding tools. The welding rotary table is also equipped with a number of liquid outlet valve transfer tools that are the same as the number of oil supply valve welding tools and are installed at intervals. The tools are the same as those on the valve seat assembly rotary table. The outer side of the welding rotary table includes the liquid outlet valve on-line station 2-8, the armature valve seat precision pressing station 2-9, the laser welding station 2-10, the dust removal station 2-11, and the stroke re-measurement station in the clockwise direction in the circumferential direction. 2-12, welding assembly off-line station 2-13; the valve seat assembly assembly includes a first transfer assembly 2-14 for loading the workpiece from the valve seat transfer and unloading station to the liquid outlet valve on-line station, and a second transfer assembly 2-15 for loading the workpiece from the valve seat assembly off-line station to the armature valve seat precision pressing station, a third transfer assembly 2-16 is installed between the welding assembly off-line station and the valve sleeve assembly assembly, and a fourth transfer assembly 2-17 is installed between the armature assembly assembly module and the valve seat transfer and loading station.

[0036] The second transfer assembly includes a second unloading assembly 2-15-a, a transverse transfer assembly 2-15-b, a longitudinal transfer assembly 2-15-c, and a second loading assembly 2-15-d. The transverse transfer assembly and the second loading assembly are both provided with a buffer mounting seat 2-15-1. The second unloading assembly includes a second unloading gripper 2-15-2 for transporting the armature valve seat assembly to the transverse transfer assembly. The longitudinal transfer assembly includes a longitudinal transfer gripper 2-15-3 for transporting the armature valve seat assembly from the transverse transfer assembly to the second loading assembly.

[0037] The welding rotary table is equipped with a missing assembly judgment sensor 2-17 and a model judgment sensor 2-18 for detecting the electromagnetic valve on the welding tool. The model judgment sensor is located on the upper side of the missing assembly judgment sensor.

[0038] The armature valve seat precipitating station includes a precipitating fixed seat 2-9-1, which is fixed to the valve sleeve assembly base plate of the valve sleeve assembly assembly through a precipitating support rod 2-9-2. A precipitating electric cylinder 2-9-3 is installed on the precipitating fixed seat, and a pressure feedback structure is installed on the electric rod of the precipitating electric cylinder. The pressure feedback structure includes a push plate 2-9-4 and a pressure plate 2-9-5. The push plate is connected to the electric rod. A precipitating head 2-9-6 for pressing the valve seat is installed on the pressure plate. The pressure plate and the push plate are connected by an elastic structure. The elastic structure includes a pressure balancing spring 2-9-7 for balancing damping. A precipitating pressure sensor 2-9-8 is installed between the pressure plate and the push plate. Both ends of the pressure plate are installed on the precipitating support rod through precipitating guide bearings 2-9-9.

[0039] The laser welding station includes a welding rotating frame 2-10-1, and a first rotating gripper 2-10-2 and a second rotating gripper 2-10-3 are respectively installed at both ends of the welding rotating frame. The laser welding station also includes a laser generator 2-10-4 and a welding cover 2-10-5.

[0040] An assembly detection method for a solenoid valve compatible with two structures includes the following steps:

[0041] ① In the armature assembly module, after the armature is loaded, the steel ball is riveted onto the armature to form the armature assembly;

[0042] ② When the assembly and inspection of the liquid outlet valve is carried out, the armature assembly is transported to the valve sleeve assembly module, skips the assembly processing stations on the valve seat assembly and welding assembly, and then moves to the valve sleeve assembly station, where it is assembled to form an armature valve sleeve assembly. When the assembly and inspection of the oil supply valve is carried out, the valve seat assembly tool assembles the valve seat, auxiliary spring, and ferrule together to form a valve seat ferrule assembly. After the armature assembly is transported to the valve sleeve assembly module, it is directly installed in the valve seat ferrule assembly to form an armature valve seat assembly. The armature valve seat assembly is transferred to the precision pressing head and then precision pressing, welding, dust removal, and stroke retest are carried out in sequence. It is then moved to the valve sleeve assembly module and assembled to form an armature valve sleeve assembly.

[0043] ③ After the armature valve sleeve assembly is transported to the valve body assembly module, it undergoes valve body loading and press-fitting, product flipping, spring loading, and spring testing to form an armature valve body assembly;

[0044] ④ After the armature valve body assembly is transported to the assembly module, it undergoes the following steps: pre-pressing the retaining iron, loading the retaining ring, and pressing the retaining ring to form an assembly component;

[0045] ⑤ After the assembly is transported to the stroke setting welding module, it undergoes stroke setting, welding, cooling, stroke retesting, and leakage testing, and then is transported to the filter assembly inspection module and assembled into a solenoid valve.

[0046] During the precision pressing process in step ②, the precision pressing electric cylinder drives the push plate to move downward. During the downward movement of the precision pressing electric cylinder, under the elastic force of the pressure balance spring, the reading of the precision pressing pressure sensor is 0. When the precision pressing head presses the armature valve seat assembly into the welding tooling and performs precision pressing, the precision pressing stroke is controlled by the reading fed back by the precision pressing pressure sensor.

[0047] During the welding process of step ②, after the first rotary gripper grabs the oil supply valve, the welding rotary frame drives the first rotary gripper and the second rotary gripper to rotate 180°, and moves the oil supply valve into the welding cover for welding. During the above process, the welding rotary table rotates and causes the next welding tool to move to the laser welding station. After the welding is completed, the second rotary gripper above the second laser welding station grabs the oil supply valve. Then, the welding rotary frame drives the first rotary gripper and the second rotary gripper to rotate 180° again. The oil supply valve that has been welded on the first rotary gripper is grabbed onto the welding tool. At the same time, the oil supply valve to be welded on the second rotary gripper is moved into the welding cover. This method greatly improves the welding efficiency; and, when the oil supply valve and the liquid outlet valve are processed at the same time, the liquid outlet valve can skip the welding process of the oil supply valve, thereby avoiding the welding station at this location becoming a bottleneck station.

Claims

1. An assembly and testing device compatible with two types of solenoid valves, characterized in that: It includes a valve sleeve assembly module, which includes a valve seat assembly assembly for installing the valve seat of the oil supply valve, a welding assembly for welding the oil supply valve, and a valve sleeve assembly assembly for installing the valve sleeve of the oil supply valve and the liquid outlet valve. The welding assembly includes an armature valve seat precision pressing assembly, and the armature valve seat precision pressing assembly includes a precision pressing head. The valve seat assembly assembly includes a valve seat assembly transfer station and a valve seat assembly offline station. The valve seat assembly transfer station includes a valve seat transfer loading station and a valve seat transfer unloading station. The welding assembly includes a liquid outlet valve online station. The valve seat assembly assembly includes a first transfer assembly for loading the workpiece from the valve seat transfer unloading station to the liquid outlet valve online station, and a second transfer assembly for loading the workpiece from the valve seat assembly offline station to the precision pressing head.

2. The assembly and detection equipment compatible with two types of solenoid valves according to claim 1 is characterized in that: The valve seat assembly component includes a valve seat assembly rotating table, on which several valve seat assembly tools are installed. The outer side of the valve seat assembly rotating table includes, in a counterclockwise direction in the circumferential direction, a ferrule loading station, a secondary spring loading station, a valve seat shaping loading station, a spring force detection station, the valve seat transfer loading station, the valve seat assembly offline station, and the valve seat transfer unloading station.

3. The assembly and detection equipment compatible with two types of solenoid valves according to claim 1 is characterized in that: The welding assembly includes a welding rotary table, on which several welding tools are installed. The outer side of the welding rotary table includes the liquid outlet valve on-line station, the armature valve seat precision pressing station, the laser welding station, the dust removal station, the stroke remeasurement station, and the welding assembly off-line station in a clockwise direction in the circumferential direction. A third transfer assembly is installed between the welding assembly off-line station and the valve sleeve assembly assembly.

4. The assembly and detection equipment compatible with two types of solenoid valves according to claim 3 is characterized in that: The laser welding station comprises a welding rotating frame, and a first rotating gripper and a second rotating gripper are respectively installed at two ends of the welding rotating frame.

5. The assembly and testing equipment compatible with two types of solenoid valves according to claim 1 is characterized in that: The assembly detection equipment of the solenoid valve also includes an armature assembly module located upstream of the valve sleeve assembly module. An armature assembly transfer assembly is installed between the armature assembly module and the valve sleeve assembly module. The armature assembly transfer assembly is provided with a first rotating seat.

6. The assembly and testing equipment compatible with two types of solenoid valves according to claim 1, characterized in that: The second transfer assembly includes a second unloading assembly, a transverse transfer assembly, a longitudinal transfer assembly, and a second loading assembly. Both the transverse transfer assembly and the second loading assembly are provided with a buffer mounting seat. The second unloading assembly includes a second unloading gripper for transporting the armature valve seat assembly to the transverse transfer assembly. The longitudinal transfer assembly includes a longitudinal transfer gripper for transporting the armature valve seat assembly from the transverse transfer assembly to the second loading assembly.

7. The assembly and testing equipment compatible with two types of solenoid valves according to claim 3, characterized in that: The welding rotary table is equipped with a missing assembly judgment sensor and a model judgment sensor for detecting the electromagnetic valve on the welding tool. The model judgment sensor is located on the upper side of the missing assembly judgment sensor.

8. The assembly detection device compatible with two types of solenoid valves according to any one of claims 1 to 7, characterized in that: The assembly and inspection equipment of the solenoid valve includes, in sequence, an armature assembly module, the valve sleeve assembly module, a valve body assembly module, an assembly module, a stroke setting welding module, and a filter assembly inspection module.

9. An assembly inspection method for a solenoid valve having two compatible structures, implemented using the assembly inspection device of claim 8, comprising the following steps: ① In the armature assembly module, after the armature is loaded, the steel ball is riveted onto the armature to form the armature assembly; ② When the assembly test of the liquid outlet valve is carried out, the armature assembly is transported to the valve sleeve assembly module, skipping the assembly processing stations on the valve seat assembly and welding assembly and moving to the valve sleeve assembly assembly, and then assembled to form the armature valve sleeve assembly; when the assembly test of the oil supply valve is carried out, the valve seat assembly tooling assembles the valve seat, auxiliary spring, and ferrule together to form the valve seat ferrule assembly. After the armature assembly is transported to the valve sleeve assembly module, it is directly installed in the valve seat ferrule assembly to form the armature valve seat assembly. The armature valve seat assembly is transferred to the precision pressing head and then precision pressing, welding, dust removal, and stroke retest are carried out in sequence. It is then moved to the valve sleeve assembly assembly and then assembled to form the armature valve sleeve assembly; ③ After the armature valve sleeve assembly is transported to the valve body assembly module, it undergoes valve body loading and press-fitting, product flipping, spring loading, and spring testing to form an armature valve body assembly; ④ After the armature valve body assembly is transported to the assembly module, it undergoes the following steps: pre-pressing the retaining iron, loading the retaining ring, and pressing the retaining ring to form an assembly component; ⑤ After the assembly is transported to the stroke setting welding module, it undergoes stroke setting, welding, cooling, stroke retesting, and leakage testing, and then is transported to the filter assembly inspection module and assembled into a solenoid valve.

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