Electromagnetic switch valve production method and electromagnetic switch valve

Abstract

The invention relates to an electromagnetic switch valve production method and an electromagnetic switch valve, and relates to the technical field of switch valves. Determining production specification parameters according to the demand application scene; a valve body, a valve seat, a valve cover, a fixing sleeve, a steel ball valve element, a movable iron core and an ejector rod are produced based on production specification parameters, and an electromagnetic coil, a sealing ring and a reset spring are selected based on the production specification parameters; the steel ball valve element is placed on the valve seat, the fixing sleeve covers the steel ball valve element and then is installed on the valve seat, the sealing ring is arranged on the ejector rod in a sleeving mode, the ejector rod is inserted into a valve opening of the fixing sleeve, and then the valve deck is arranged on the ejector rod in a sleeving mode and connected with the valve body. A reset spring and a movable iron core are installed on the electromagnetic coil; and the ejector rod and the movable iron core are coaxially installed in a matched mode, and the electromagnetic coil and the valve deck are installed and fixed to form the electromagnetic switch valve. The electromagnetic switch valve has the effect that the electromagnetic switch valve can be conveniently and effectively used for a long time.

Description

Technical Field

[0001] This invention relates to the field of switching valve technology, and in particular to a method for manufacturing an electromagnetic switching valve and the electromagnetic switching valve itself. Background Technology

[0002] A switching valve is a mechanical device used to control the opening and closing of fluid (liquid, gas, etc.) passages. It opens or closes the pipeline by moving the valve core (such as rotating or sliding) and is widely used in systems such as oil circuits, gas circuits, and coolant circuits.

[0003] An electromagnetic switching valve is a valve whose opening or closing state is directly controlled by an electromagnetic coil. An electromagnetic switching valve includes a valve body, valve core, electromagnetic coil, moving iron core, and return spring. The valve body has a fluid passage, inlet, outlet, and valve port. The valve core is rigidly connected to the lower end of the moving iron core or is integrated with it. When the electromagnetic coil is de-energized, the thrust of the return spring closes the valve port along with the moving iron core, thus closing the flow passage. When the electromagnetic coil is energized, the moving iron core overcomes the thrust of the return spring and moves the valve core, thereby opening the valve port and opening the flow passage.

[0004] Because the moving iron core and valve core are currently integrated, after the electromagnetic switch valve has been used for a long time, the moving iron core is prone to axial deviation during its movement, which in turn causes the valve core to deviate from its axis. This results in uneven contact between the valve core and the valve port, which can easily lead to the failure of the electromagnetic switch valve. Summary of the Invention

[0005] To facilitate the long-term effective use of electromagnetic switching valves, this invention provides a method for manufacturing electromagnetic switching valves and an electromagnetic switching valve itself.

[0006] In a first aspect, the present invention provides a method for manufacturing an electromagnetic switching valve, employing the following technical solution: A method for manufacturing an electromagnetic switching valve, comprising: S1: Application scenarios for data collection requirements; S2: Determine production specifications and parameters based on the application scenario; S3: Based on production specifications, the valve body, valve seat, valve cover, fixed sleeve, ball valve core, moving iron core, and push rod are manufactured, and the electromagnetic coil, sealing ring, and return spring are selected based on production specifications. S4: Based on the preset execution module installation procedure, place the ball valve core on the valve seat, cover the ball valve core with the fixing sleeve and install it on the valve seat, put the sealing ring on the top rod, insert the top rod into the valve port of the fixing sleeve, and then put the valve cover on the top rod and connect it to the valve body; S5: Based on the preset control module installation procedure, the reset spring and the movable iron core are installed on the electromagnetic coil; S6: Based on the preset assembly installation process, the top rod and the movable iron core are coaxially fitted and installed, and the electromagnetic coil and the valve cover are installed and fixed to form an electromagnetic switch valve.

[0007] By adopting the above technical solution, production specifications and parameters are determined by first collecting the application scenarios and needs, enabling customized production on demand. The movable iron core, push rod, and ball valve core are produced separately, and then the ball valve core, push rod, and movable iron core are precisely assembled. In particular, the coaxial fit accuracy of the push rod and the movable iron core is ensured. Thus, the movable iron core drives the push rod to move, which in turn drives the ball valve core to move, thereby controlling the opening and closing of the valve port. This reduces the risk of on / off failure caused by coaxiality errors after long-term use and facilitates the long-term effective use of the electromagnetic switch valve.

[0008] Optional methods for determining production specifications include: S21: Determine the placement space parameters and fluid flow rate values ​​based on the application scenario; S22: Determine the external dimension parameters based on the placement space parameters; S23: Determine the internal capacity value based on the fluid flow rate value; S24: Combine the external dimensional parameters and the internal capacity value to determine the execution specification parameters, which include the dimensional specifications of the valve body and the valve seat; S25: Determine the relevant specification parameters according to the execution specification parameters. The relevant specification parameters include the dimensional specifications of the valve cover, the fixed sleeve, the steel ball valve core, the movable iron core, the electromagnetic coil, the sealing ring, the return spring, and the push rod. S26: Combine dimensional specifications with relevant specifications and use them as production specifications.

[0009] By adopting the above technical solution, the execution specification parameters are derived from the placement space parameters and fluid flow values ​​of the application scenario, so that the external dimensions of the valve body and valve seat match the installation space requirements and the internal capacity matches the flow requirements. Then, the relevant specification parameters are determined by the execution specification parameters, so as to achieve the coordinated adaptation of the execution specification parameters and related specification parameters, avoid the problem of parameter redundancy or missing parameters, provide accurate basis for the subsequent production and selection of components, and improve the compatibility accuracy between products and application scenarios.

[0010] Optionally, methods for determining relevant specifications and parameters include: S251: Based on the execution specification parameters, retrieve the size specification parameters of the valve body and the valve seat, and use the size specification parameters of the valve body as external specification parameters and the size specification parameters of the valve seat as internal specification parameters. S252: Determine the cover specifications of the valve cover, the coil specifications of the electromagnetic coil, and the core specifications of the movable iron core based on the external specifications. S253: Determine the seat-to-cover distance value by combining the internal specification parameters and the cover specification parameters; S254: Determine the steel ball specifications of the steel ball valve core according to the internal specifications. S255: Determine the sleeve specifications by combining the seat cover spacing value and the steel ball specification parameters; S256: Determine the rod specifications of the top rod, the sealing specifications of the sealing ring, and the spring specifications of the return spring by combining the specifications of the steel ball, the sleeve, and the iron core. S257: The specifications are based on the combination of the cover specifications, sleeve specifications, sealing specifications, steel ball specifications, coil specifications, iron core specifications, rod specifications, and spring specifications.

[0011] By adopting the above technical solution, the dimensional specifications of the valve body and valve seat are used as the benchmark to derive the specifications of other components layer by layer, ensuring the precise fit between the valve cover, fixed sleeve, steel ball valve core and other components and the core components; by linking and matching key parameters such as seat cover spacing value and steel ball specifications, the relevant specifications are determined, improving the assembly coordination between components and reducing assembly jamming or sealing failure caused by dimensional deviations.

[0012] Optional methods for determining the sleeve specifications include: S2551: Retrieve steel ball diameter value based on steel ball specification parameters; S2552: Determine the required limit spacing, limit thickness, and opening diameter based on the steel ball diameter; S2553: Calculate the sum between the required limit spacing value and the required limit thickness value and use it as the extension reference length value; S2554: Determine the overall length of the sleeve based on the extended reference length value and the preset fixed ratio coefficient; S2555: The overall length of the sleeve, the thickness required for the limit, and the opening diameter are combined and used as the sleeve specification parameters.

[0013] By adopting the above technical solution, the key dimensions such as the required limit spacing, the required limit thickness, and the opening diameter are determined by the diameter of the steel ball. Combined with the preset fixed proportional coefficient, the overall length of the sleeve is calculated, so that the fixed sleeve accurately matches the limit requirements of the steel ball valve core. This ensures the stable control of the valve port opening and closing state by the steel ball valve core, avoids problems such as steel ball offset and valve port sealing failure caused by improper sleeve specifications, and improves the reliability of valve port control.

[0014] Optional methods for determining the specifications of the rod include: S2561: Determine the maximum diameter based on the sleeve specifications; S2562: Determine the maximum length based on the maximum diameter and the preset length-to-diameter ratio; S2563: Determine the minimum diameter based on the steel ball specifications; S2564: Determine the minimum length based on the minimum diameter and the preset length-to-diameter ratio; S2565: Retrieve core length value based on core specification parameters; S2566: Determine the length selection value by combining the core length value, the maximum length value, and the minimum length value; S2567: Determine the length selection specification parameters based on the length selection value, and use the length selection specification parameters as the rod body specification parameters.

[0015] By adopting the above technical solution, the maximum and minimum lengths of the push rod are determined by combining the specifications of the sleeve and the steel ball. Then, the optimal push rod length is selected with reference to the length of the iron core. This ensures that the push rod size takes into account both the compatibility with the sleeve and the linkage requirements with the moving iron core, avoiding transmission failure caused by excessively long or short push rods. It also ensures stable sliding of the push rod between the fixed sleeve valve port and the moving iron core rod release slot and the efficiency of power transmission.

[0016] Optional methods for determining the length selection value include: S25661: Determine the appropriate length value based on the core length value; S25662: Determine the length reference interval based on the maximum and minimum length values; S25663: Determine whether the appropriate length value is within the length reference range; S25664: If yes, then the appropriate length value will be used as the length selection value; S25665: If not, calculate the difference between the selected length value and the maximum length value and use it as the maximum deviation value; S25666: Calculate the difference between the selected length value and the minimum length value and use it as the minimum deviation value; S25667: Based on the comparison between the maximum and minimum deviation values, select the maximum or minimum length value as the length selection value.

[0017] By adopting the above technical solution, the accuracy of the obtained length selection value is improved by judging whether the appropriate length value is within the length reference range. When it is within the range, the appropriate length value is used as the length selection value. When it is not within the range, the maximum or minimum length value is selected as the length selection value by combining the comparison results of the maximum deviation value and the minimum deviation value.

[0018] Optionally, methods for determining sealing specifications include: S25681: Calculate the difference between the seat cover spacing value and the extended reference length value and use it as the reference thickness value; S25682: Determine the estimated diameter value based on the reference thickness value; S25683: Retrieve rod diameter value based on rod specification parameters; S25684: Determine the estimated diameter of the rod based on the rod diameter value; S25685: Determine the estimated diameter value by combining the estimated diameter value of the rod body and the estimated diameter value of the thickness; S25686: Determine the diameter selection specification parameters based on the estimated diameter value, and use the diameter selection specification parameters as the sealing specification parameters.

[0019] By adopting the above technical solution, the estimated diameter value is determined by calculating the reference thickness value, the diameter value of the rod is retrieved by the rod specification parameters, and the estimated diameter value is determined in combination with the estimated diameter value. Then, the diameter selection specification parameters are determined and used as the sealing specification parameters. This allows the sealing ring to accurately fit the assembly gap between the push rod and the valve cover through hole, improving the sealing fit and facilitating coaxial limiting of the push rod. This prevents the contact position between the push rod and the steel ball valve core from shifting significantly, facilitating the long-term effective use of the electromagnetic switch valve.

[0020] Optionally, methods for determining the estimated diameter value include: S256851: The estimated diameter deviation is calculated based on the estimated diameter value of the rod body and the estimated diameter value of the thickness. S256852: Determine the increase in diameter deviation based on the estimated diameter deviation value; S256853: Determine whether the estimated diameter of the rod is less than the estimated diameter of the thickness; S256854: If yes, calculate the sum between the estimated diameter value of the rod and the increase in diameter deviation and use it as the estimated diameter value; S256855: If not, calculate the sum between the estimated diameter value and the increase in diameter deviation and use it as the estimated diameter value.

[0021] By adopting the above technical solution, the increase in diameter deviation is determined by calculating the estimated diameter deviation value, and the estimated diameter value is selected based on the judgment result that the estimated diameter value of the rod is less than the estimated diameter value of the thickness, thereby improving the accuracy of the obtained estimated diameter value.

[0022] Secondly, the present invention provides an electromagnetic switching valve, which adopts the following technical solution: An electromagnetic switching valve, employing a method for manufacturing an electromagnetic switching valve as described in any one of the first aspects, comprising: The valve body has a fluid inlet and a fluid outlet; The valve seat is integrally formed in the valve body and has a connecting hole for connecting the fluid inlet and the fluid outlet; A fixing sleeve is fitted onto the valve seat, and a valve port is provided on the side away from the valve seat; A ball valve core is installed between the valve seat and the fixed sleeve and is used to control the valve port to open or close. An electromagnetic coil, disposed on the valve body, is used to receive external control signals and generate a magnetic field; A movable iron core is inserted and slids inside the electromagnetic coil, and is used to be driven by the magnetic field generated by the electromagnetic coil to move the steel ball valve core towards the valve seat; A push rod is disposed between the movable iron core and the steel ball valve core; A valve cover is provided between the valve body and the electromagnetic coil. The valve cover has a through hole for the push rod to pass through. A sealing ring is fitted on the push rod. The sealing ring is located on the side of the valve cover away from the electromagnetic coil. A return spring is provided on the side of the electromagnetic coil away from the push rod to drive the movable iron core to always be in contact with the push rod. The movable iron core has a rod release groove for placing the push rod and a spring release groove for placing the return spring.

[0023] By adopting the above technical solutions, the valve seat and valve body are designed as a single piece, which improves the structural strength of the product; the limiting fit structure between the fixed sleeve and the ball valve core ensures the accuracy of on / off control; the linkage between the moving iron core and the push rod, as well as the reset function of the return spring, ensure that the push rod is always in contact with the ball valve core, and the movement of the push rod by the moving iron core drives the ball valve core to move, thereby controlling the opening and closing of the valve port. This reduces the risk of on / off failure caused by coaxiality error after long-term use and facilitates the long-term effective use of the electromagnetic switch valve.

[0024] Optionally, the fluid inlet is located on the circumferential sidewall of the valve body, the fluid outlet is located on the side of the valve body away from the electromagnetic coil, and the valve body is provided with a first filter screen for covering the fluid inlet and a second filter screen for covering the fluid outlet.

[0025] By adopting the above technical solution, the first filter screen and the second filter screen respectively cover the fluid inlet and the fluid outlet, which can effectively filter impurities in the fluid, avoid the wear of impurities on the steel ball valve core, and prevent the blockage of the connecting hole and valve port, ensure the smoothness of the fluid passage, reduce component wear, extend the service life of the electromagnetic switch valve, and improve the stability of fluid control.

[0026] In summary, the present invention has at least one of the following beneficial technical effects: 1. By first collecting the application scenarios and determining the production specifications, customized production can be achieved. The moving iron core, push rod, and ball valve core are produced separately. Then, the ball valve core, push rod, and moving iron core are precisely assembled. In particular, the coaxial fit accuracy of the push rod and the moving iron core is ensured. The moving iron core drives the push rod to move, which in turn drives the ball valve core to move. This controls the opening and closing of the valve port, reduces the risk of on / off failure caused by coaxiality errors after long-term use, and facilitates the long-term effective use of the electromagnetic switch valve. 2. By deriving the execution specification parameters based on the placement space parameters and fluid flow rate values ​​of the application scenario, the external dimensions of the valve body and valve seat are matched with the installation space requirements, and the internal capacity is matched with the flow rate requirements. Then, the relevant specification parameters are determined by the execution specification parameters, so as to achieve the coordinated adaptation of the execution specification parameters and related specification parameters, avoid the problem of parameter redundancy or missing parameters, provide accurate basis for the subsequent production and selection of components, and improve the compatibility accuracy between products and application scenarios. 3. The valve seat and valve body adopt an integrated molding design, which improves the structural strength of the product; the limiting fit structure between the fixed sleeve and the ball valve core ensures the accuracy of on / off control; the linkage between the moving iron core and the push rod and the reset action of the return spring ensure that the push rod is always in contact with the ball valve core, and the movement of the push rod by the moving iron core drives the ball valve core to move, thereby controlling the opening and closing of the valve port, reducing the risk of on / off failure caused by coaxiality error after long-term use, and facilitating the long-term effective use of the electromagnetic switch valve. Attached Figure Description

[0027] Figure 1 This is an overall sectional view of the electromagnetic switching valve; Figure 2 It is a cross-sectional view of the valve body, valve seat, first filter screen and second filter screen; Figure 3 This is a flowchart of the manufacturing process for electromagnetic switch valves.

[0028] The parts referred to by the numbers in the above attached diagrams are as follows: 1. Valve body; 2. Fluid inlet; 3. Fluid outlet; 4. Valve seat; 5. Communicating hole; 6. Fixing sleeve; 7. Valve port; 8. Ball valve core; 9. Electromagnetic coil; 10. Moving iron core; 11. Push rod; 12. Valve cover; 13. Through hole; 14. Sealing ring; 15. Return spring; 16. Rod release groove; 17. Spring release groove; 18. First filter screen; 19. Second filter screen. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0030] Reference Figure 1 and Figure 2 This invention discloses an electromagnetic switching valve, comprising a valve body 1, a valve seat 4, a fixed sleeve 6, a ball valve core 8, an electromagnetic coil 9, a movable iron core 10, and a push rod 11. The valve body 1 has a pre-set cavity inside. A fluid inlet 2 is formed on the circumferential side wall of the valve body 1, and a fluid outlet 3 is formed at one end of the valve body 1 along its length. The valve seat 4 is located inside the valve body 1 and is integrally formed on two opposing inner side walls of the cavity of the valve body 1, with gaps between it and the other two inner side walls to facilitate fluid passage. A connecting hole 5 is formed on the valve seat 4 along the length of the valve body 1, allowing fluid to enter from the fluid outlet 3, pass through the connecting hole 5 into the cavity of the valve body 1, flow through the gap on the outside of the valve seat 4, and then exit from the fluid outlet 3.

[0031] Reference Figure 1 and Figure 2 The fixed sleeve 6 is fitted onto the side of the valve seat 4 away from the fluid outlet 3, and a valve port 7 for fluid to flow through is opened on the side of the fixed sleeve 6 away from the valve seat 4. The ball valve core 8 is limited and installed between the valve seat 4 and the fixed sleeve 6. The movement of the ball valve core 8 controls the opening or closing of the valve port 7.

[0032] Reference Figure 1 and Figure 2A valve cover 12 is installed on the side of the valve body 1 away from the fluid outlet 3. An electromagnetic coil 9 is installed on the side of the valve cover 12 away from the valve body 1. A movable iron core 10 slides inside the electromagnetic coil 9. A push rod 11 is installed between the movable iron core 10 and the ball valve core 8. The valve cover 12 has a through hole 13 for the push rod 11 to pass through, and the diameter of the through hole 13 is larger than the diameter of the push rod 11. The movable iron core 10 has a rod slot 16 for placing the push rod 11. The electromagnetic coil 9 is used to receive external control signals and generate a magnetic field. The movable iron core 10 is subjected to the magnetic field generated by the electromagnetic coil 9 and moves towards the ball valve core 8. The movable iron core 10 pushes the push rod 11 to move, and the push rod 11 pushes the ball valve core 8 towards the valve seat 4, thereby controlling the ball valve core 8 to not contact the side wall at the valve port 7. At this time, the valve port 7 is opened. By installing the movable iron core 10, the push rod 11 and the ball valve core 8 separately, the deviation of the axis of the movable iron core 10 is less likely to affect the ball valve core 8. Moreover, the movement of the movable iron core 10 can still be controlled by the push rod 11 to move the ball valve core 8, reducing the risk of on / off failure caused by coaxiality error after long-term use and facilitating the long-term effective use of the electromagnetic switch valve.

[0033] Reference Figure 1 A sealing ring 14 is fitted on the push rod 11. The sealing ring 14 is located on the side of the valve cover 12 away from the electromagnetic coil 9. The outer diameter of the sealing ring 14 is larger than the diameter of the through hole 13, and the inner diameter of the sealing ring 14 is the same as the diameter of the push rod 11, so that the fluid in the valve body 1 is not easy to enter the electromagnetic coil 9.

[0034] Reference Figure 1 A return spring 15 is installed on the side of the electromagnetic coil 9 away from the push rod 11. A spring release groove 17 is provided on the movable iron core 10 for placing the return spring 15. The return spring 15 is used to drive the movable iron core 10 to always be in contact with the push rod 11, so that the push rod 11 is not easy to deviate from the axis, thereby further reducing the risk of on / off failure caused by coaxiality error after long-term use, and facilitating the long-term effective use of the electromagnetic switch valve.

[0035] Reference Figure 1 and Figure 2 A first filter screen 18 is fitted onto the valve body 1 to cover the fluid inlet 2, and a second filter screen 19 is fitted onto the valve body 1 to cover the fluid outlet 3. The first filter screen 18 and the second filter screen 19 effectively filter impurities in the fluid, preventing impurities from causing wear on the steel ball valve core 8 and clogging the connecting hole 5 and valve port 7, thus ensuring the smooth flow of fluid.

[0036] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional modules is used as an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device, and unit described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0037] Reference Figure 3 Based on the same inventive concept, embodiments of the present invention provide a method for manufacturing an electromagnetic switching valve, comprising: S1: Application scenarios for data collection requirements.

[0038] The application scenarios refer to the specific working conditions and usage requirements under which the electromagnetic switching valve will be put into use. These scenarios include installation constraints (such as placement space dimensions and assembly interface types) and controlled fluid characteristics (such as fluid type, pressure, and flow rate requirements).

[0039] The application scenarios are obtained through pre-input by the operator.

[0040] S2: Determine production specifications and parameters based on the application scenario and requirements.

[0041] Among them, production specification parameters refer to a set of quantitative technical indicators set to guide the production and selection of components in order to meet the specific application scenarios of electromagnetic switching valves.

[0042] By analyzing the application scenarios, production specifications and parameters can be determined to facilitate subsequent use.

[0043] To further ensure the rationality of production specifications, it is necessary to perform further separate analysis and calculation on the production specifications, which will be explained in detail through the steps shown below.

[0044] The method for determining production specifications includes the following steps: S21: Determine the placement space parameters and fluid flow rate values ​​based on the application scenario.

[0045] Among them, the placement space parameter refers to the quantitative dimensional parameters corresponding to the installation area reserved for the electromagnetic switching valve in the required application scenario. The fluid flow rate value refers to the quantitative index of the fluid flow rate per unit time that the electromagnetic switching valve is required to pass through in the required application scenario.

[0046] The placement space parameters and fluid flow rate values ​​can be retrieved based on the application scenario to facilitate subsequent use.

[0047] S22: Determine the external dimension parameters based on the placement space parameters.

[0048] Among them, the external dimension parameters refer to the quantitative dimensional indicators of the outer contour of the electromagnetic switching valve.

[0049] By retrieving the length, width, and height dimensions from the placement space parameters and scaling them down according to a preset size reduction ratio, the external dimension parameters are obtained for convenient subsequent use.

[0050] The size reduction ratio refers to the reduction ratio required for convenient placement and installation of the solenoid valve. This reduction ratio is preset by the operator based on actual needs.

[0051] S23: Determine the internal capacity value based on the fluid flow rate.

[0052] The internal capacity value refers to the quantitative index of the total volume of the cavity and flow channel inside the electromagnetic switch valve that supplies fluid flow.

[0053] The product of the fluid flow rate and the preset reasonable residence time of the fluid in the valve is calculated, and the calculation result is used as the internal capacity value for convenient subsequent use.

[0054] S24: Determine the execution specification parameters by combining the external dimension parameters and the internal capacity value.

[0055] Among them, the execution specification parameters refer to the set of quantitative indicators of core components that directly relate to the external adaptability and internal flow performance of the solenoid valve. The execution specification parameters include the dimensional specifications of the valve body 1 and the valve seat 4.

[0056] The length and width of valve body 1 are determined by external dimensional parameters, and the cavity and flow channel volume between valve body 1 and valve seat 4, as well as the height of valve body 1, are determined by combining the internal capacity value. Then, the overall outline dimensions corresponding to the symmetrical installation of valve body 1 and valve seat 4 are obtained by setting the symmetry standard between valve seat 4 and valve body 1, and these dimensions are used as the execution specification parameters for convenient subsequent use.

[0057] S25: Determine the relevant specification parameters based on the execution specification parameters.

[0058] Among them, the relevant specifications and parameters refer to the set of quantitative indicators of auxiliary components that are adapted to the overall function of the electromagnetic switch valve.

[0059] The relevant specifications include the dimensions of the valve cover 12, the fixed sleeve 6, the ball valve core 8, the movable iron core 10, the electromagnetic coil 9, the sealing ring 14, the return spring 15, and the push rod 11.

[0060] By analyzing the execution specifications, relevant specifications can be determined to facilitate subsequent use.

[0061] To further ensure the rationality of the relevant specifications and parameters, it is necessary to conduct further separate analysis and calculation of the relevant specifications and parameters, which will be explained in detail through the steps shown below.

[0062] The method for determining relevant specifications and parameters includes the following steps: S251: Based on the execution specification parameters, retrieve the dimensional specification parameters of valve body 1 and valve seat 4, and use the dimensional specification parameters of valve body 1 as external specification parameters and the dimensional specification parameters of valve seat 4 as internal specification parameters.

[0063] The definition of external and internal specifications facilitates subsequent use.

[0064] S252: Determine the cover specifications of valve cover 12, the coil specifications of electromagnetic coil 9, and the core specifications of movable iron core 10 based on the external specifications.

[0065] Among them, the cover specifications refer to the length, width, and height dimensions of the valve cover 12. The coil specifications refer to the length, width, and height dimensions of the electromagnetic coil 9. The core specifications refer to the length, width, and height dimensions of the movable core 10.

[0066] The top dimensions of the valve body 1 are retrieved using external specification parameters to determine the length and width of the valve cover 12 and the solenoid coil 9. The height of the solenoid coil 9 is then calculated by multiplying the height of the valve body 1 by a preset height ratio. This height is then combined with the height from the external dimension parameters to obtain the remaining height, which is used as the height of the valve cover 12. The length, width, and height of the valve cover 12 are then combined to obtain the cover specifications. Similarly, the length, width, and height of the solenoid coil 9 are combined to obtain the coil specifications. Finally, the length, width, and height of the solenoid coil 9 are calculated using a preset coil core ratio to obtain the core specifications.

[0067] The height ratio is a pre-set ratio between the height of valve body 1 and electromagnetic coil 9. The coil core ratio is a pre-set ratio of the length, width, and height between electromagnetic coil 9 and movable core 10.

[0068] S253: Determine the seat-to-cover distance value by combining the internal specification parameters and the cover specification parameters.

[0069] The valve cover spacing value refers to the distance between the valve cover 12 and the valve seat 4.

[0070] The installation height of the top sealing surface of valve seat 4 is obtained by retrieving the internal specification parameters, and the installation height of the inner reference surface of valve cover 12 is retrieved according to the cover specification parameters. The difference between the two heights is then calculated and used as the seat-cover distance value for convenient subsequent use.

[0071] S254: Determine the steel ball specifications of the steel ball valve core 8 based on the internal specifications.

[0072] Among them, the steel ball specifications refer to parameters such as the diameter and material of the steel ball valve core 8.

[0073] The diameter of the connecting hole 5 of the valve seat 4 is retrieved by internal specification parameters, and the product of the diameter of the connecting hole 5 and the preset ball hole diameter is calculated to obtain the diameter of the steel ball valve core 8. This is then combined with the preset steel ball material to form the steel ball specification parameters for convenient subsequent use.

[0074] The diameter ratio of the ball hole refers to the ratio of the diameter of the connecting hole 5 to the diameter of the ball valve core 8 bracket, which is preset by the operator according to actual needs.

[0075] S255: Determine the sleeve specifications of the fixing sleeve 6 by combining the seat cover spacing value and the steel ball specification parameters.

[0076] Among them, the sleeve specification parameters refer to the external outline dimensions of the fixed sleeve 6.

[0077] By combining the seat-cover spacing value with the steel ball specification parameters, the sleeve specification parameters can be determined to facilitate subsequent use.

[0078] To further ensure the rationality of the sleeve specifications, it is necessary to perform further separate analysis and calculation on the sleeve specifications, which will be explained in detail through the steps shown below.

[0079] The method for determining the specifications and parameters of the sleeve includes the following steps: S2551: Retrieve the diameter value of the steel ball based on the steel ball specification parameters.

[0080] The steel ball diameter value refers to the diameter of the steel ball valve core 8.

[0081] The diameter value of the steel ball can be retrieved by using the steel ball specification parameters, which facilitates subsequent use.

[0082] S2552: Determine the required limit spacing, limit thickness, and opening diameter based on the steel ball diameter.

[0083] Among them, the required limit spacing value refers to the required spacing value corresponding to the opening and closing of the ball valve core 8 under movement control. The limit required thickness value refers to the thickness value required for normal use of the fixed sleeve 6. The opening diameter value refers to the diameter value corresponding to the valve port 7 of the fixed sleeve 6.

[0084] The required limiting distance value is obtained by calculating the sum of the steel ball diameter and the preset flow spacing value. Then, the required limiting distance value is used as the inner wall diameter of the fixing sleeve 6, and the product of this value and the inner / outer ratio is calculated as the required limiting thickness value. Finally, the opening diameter value is obtained by calculating the product of the steel ball diameter and the preset closing ratio value, facilitating subsequent use.

[0085] The flow gap value refers to the pre-set distance between the ball valve core 8 and the valve port 7 when the ball valve core 8 is in the open state. The inner-outer ratio value refers to the pre-set diameter ratio between the inner and outer walls of the fixing sleeve 6. The closing ratio value refers to the pre-set diameter ratio corresponding to when the ball valve core 8 abuts against and seals the valve port 7.

[0086] S2553: Calculate the sum of the required limit spacing value and the required limit thickness value and use it as the extension reference length value.

[0087] The extended reference length value refers to the length value corresponding to the part of the fixed sleeve 6 that extends beyond the valve seat 4.

[0088] The sum of the required limit spacing value and the required limit thickness value is calculated, and the calculation result is used as the extension reference length value for convenient subsequent use.

[0089] S2554: Determine the overall length of the sleeve based on the extended reference length value and the preset fixed ratio coefficient.

[0090] The fixed proportional coefficient refers to the ratio between the mounting portion of the fixed sleeve 6 and the valve seat 4, relative to the portion of the fixed sleeve 6 extending beyond the valve seat 4, when the fixed sleeve 6 is fixedly installed. The fixed proportional coefficient is obtained by the operator through pre-setting according to requirements. For example, the fixed proportional coefficient can be 1.5.

[0091] The overall length of the sleeve refers to the overall length of the fixed sleeve 6.

[0092] The calculation is performed by comparing the extended reference length with a preset fixed ratio coefficient, and the result is used as the overall length of the sleeve for convenient subsequent use.

[0093] S2555: The overall length of the sleeve, the thickness required for the limit, and the opening diameter are combined and used as the sleeve specification parameters.

[0094] Specifically, by combining the overall length value of the sleeve, the thickness value required for limiting, and the opening diameter value to form a set of contour parameters for the fixed sleeve 6, and using these parameters as sleeve specification parameters, the accuracy of the obtained sleeve specification parameters is improved.

[0095] S256: Determine the rod specifications of the top rod 11, the sealing specifications of the sealing ring 14, and the spring specifications of the return spring 15 by combining the specifications of the steel ball, the sleeve, and the iron core.

[0096] Among them, the rod specifications refer to the length, width, and height dimensions of the top rod 11. The sealing specifications refer to the diameter and thickness dimensions of the sealing ring 14. The spring specifications refer to the spring stiffness and free length of the return spring 15.

[0097] By combining and analyzing the specifications of the steel balls, sleeve, and iron core, the specifications of the rod and the sealing are determined. Then, the weight of the iron core is calculated using the length, width, and height dimensions in the iron core specifications and the preset iron core material. The force-bearing area of ​​the steel balls is determined using the iron core and steel ball specifications. The spring stiffness is then calculated by combining the fluid pressure. The return stroke of the iron core is determined using the iron core and coil specifications, and the free length parameter of the return spring 15 is determined. Thus, the spring specifications are obtained for convenient subsequent use.

[0098] To further ensure the rationality of the pole specifications, it is necessary to perform further separate analysis and calculation of the pole specifications, which will be explained in detail through the steps shown below.

[0099] The method for determining the specifications and parameters of the rod includes the following steps: S2561: Determine the maximum diameter based on the sleeve specifications.

[0100] The maximum diameter refers to the maximum allowable diameter of the push rod 11.

[0101] The diameter value of valve port 7 is retrieved by adjusting the sleeve specification parameters and used as the maximum diameter value for convenient subsequent use.

[0102] S2562: Determine the maximum length based on the maximum diameter and the preset length-to-diameter ratio.

[0103] The maximum length refers to the length of the push rod 11 determined based on the maximum diameter. The length-to-diameter ratio is the proportionality coefficient between the length and diameter of the push rod 11, which is obtained after pre-input by the operator.

[0104] The product of the maximum diameter and the preset length-to-diameter ratio is calculated, and the result is used as the maximum length for convenient subsequent use.

[0105] S2563: Determine the minimum diameter based on the steel ball specifications.

[0106] The minimum diameter refers to the minimum diameter value that occurs when the push rod 11 pushes the ball valve core 8 without tilting or slipping.

[0107] The diameter of the ball valve core 8 is obtained by retrieving the ball specifications and calculating the product with the preset slip ratio value as the minimum diameter value for convenient subsequent use.

[0108] The slip ratio value refers to the pre-set ratio between the diameters of the push rod 11 and the ball valve core 8 when no tilting or slippage occurs.

[0109] S2564: Determine the minimum length based on the minimum diameter and the preset length-to-diameter ratio.

[0110] The minimum length refers to the length of the top rod 11 determined based on the minimum diameter.

[0111] The product of the minimum diameter and the preset length-to-diameter ratio is calculated, and the result is used as the minimum length for convenient subsequent use.

[0112] S2565: Retrieve core length value based on core specification parameters.

[0113] The core length value refers to the length of the movable core 10.

[0114] The core length value can be retrieved by using the core specification parameters, which facilitates subsequent use.

[0115] S2566: Determine the length selection value by combining the core length value, the maximum length value, and the minimum length value.

[0116] The length selection value refers to the length value corresponding to the selected length of the top rod 11.

[0117] By combining and analyzing the core length value, the maximum length value, and the minimum length value, the selected length value is determined to facilitate subsequent use.

[0118] To further ensure the rationality of the selected length value, it is necessary to perform a further separate analysis and calculation on the selected length value, which will be explained in detail through the steps shown below.

[0119] The method for determining the length selection value includes the following steps: S25661: Determine the appropriate length value based on the core length value.

[0120] The appropriate length value refers to the length value corresponding to when the push rod 11 and the moving iron core 10 are not prone to coaxial deviation.

[0121] The product of the core length and a preset appropriate ratio is calculated and used as the appropriate length value for subsequent use.

[0122] The appropriate ratio value refers to the ratio between the length of the push rod 11 and the length of the moving iron core 10 when there is little chance of coaxial deviation between the push rod 11 and the moving iron core 10. The appropriate ratio value is obtained after being pre-input by the operator.

[0123] S25662: Determine the length reference interval based on the maximum and minimum length values.

[0124] The length reference range refers to the reference range within which the length of the top rod 11 can be set.

[0125] By using the minimum length as the minimum value of the interval and the maximum length as the maximum length of the interval, a length baseline interval is formed for convenient subsequent use.

[0126] S25663: Determine whether the appropriate length value is within the length reference range. If yes, proceed to S25664; if no, proceed to S25665.

[0127] Specifically, by judging whether the appropriate length value is within the length reference range, it can be determined whether the appropriate length value can be used directly.

[0128] S25664: Use an appropriate length value as the length selection value.

[0129] When the appropriate length value is within the length reference range, it means that the appropriate length value can be used directly, so the appropriate length value is used as the length selection value.

[0130] S25665: Calculate the difference between the selected length value and the maximum length value and use it as the maximum deviation value.

[0131] When the appropriate length value is not within the length reference range, it means that the appropriate length value cannot be used directly. The maximum deviation value is calculated to facilitate subsequent use.

[0132] S25666: Calculate the difference between the selected length value and the minimum length value and use it as the minimum deviation value.

[0133] The calculation of the minimum deviation value facilitates subsequent use.

[0134] S25667: Based on the comparison between the maximum and minimum deviation values, select the maximum or minimum length value as the length selection value.

[0135] By analyzing the comparison results between the maximum and minimum deviation values, when the maximum deviation value is greater than the minimum deviation value, the minimum length value is used as the length selection value; when the maximum deviation value is not greater than the minimum deviation value, the maximum length value is used as the length selection value, thereby improving the accuracy of the obtained length selection value.

[0136] S2567: Determine the length selection specification parameters based on the length selection value, and use the length selection specification parameters as the rod body specification parameters.

[0137] Among them, the length selection specification parameter refers to the corresponding size parameter after selecting the size parameter of the top rod 11 based on the length selection value.

[0138] The diameter corresponding to the length selection value is retrieved, and the diameter and length of the top rod 11 are combined as the length selection specification parameter. The length selection specification parameter is then used as the rod body specification parameter to improve the accuracy of the obtained rod body specification parameters.

[0139] To further ensure the rationality of the sealing specifications, it is necessary to perform further separate analysis and calculation on the sealing specifications, which will be explained in detail through the steps shown below.

[0140] The method for determining sealing specifications includes the following steps: S25681: Calculate the difference between the seat cover spacing value and the extended reference length value and use it as the reference thickness value.

[0141] The reference thickness value refers to the thickness value corresponding to the sealing ring 14 that can be placed.

[0142] Calculating the baseline thickness value facilitates subsequent use.

[0143] S25682: Determine the estimated diameter value based on the reference thickness value.

[0144] The estimated diameter value refers to the diameter value of the sealing ring 14 estimated based on the reference thickness value.

[0145] The reference thickness value and the diameter are positively correlated. The product of the reference thickness value and the preset thickness-to-diameter ratio of the sealing ring 14 is calculated, and the result is used as the estimated diameter value for subsequent use.

[0146] The thickness-to-diameter ratio of the sealing ring 14 refers to the ratio between the preset reference thickness value and the estimated diameter value. The thickness-to-diameter ratio of the sealing ring 14 is obtained after being pre-input by the operator.

[0147] S25683: Retrieve the rod diameter value based on rod specification parameters.

[0148] The rod diameter value refers to the diameter of the top rod 11.

[0149] The diameter value of the rod can be retrieved by using the rod specifications, which facilitates subsequent use.

[0150] S25684: Determine the estimated diameter of the rod based on the rod diameter value.

[0151] The estimated diameter of the rod refers to the diameter value estimated by the sealing ring 14 based on the diameter of the rod.

[0152] The product of the rod diameter and the preset ratio between the inner and outer rings is calculated, and the result is used as the estimated rod diameter for subsequent use.

[0153] The inner-outer ratio refers to the ratio between the inner diameter and the outer diameter of the sealing ring 14. This ratio is obtained after pre-input by the operator.

[0154] S25685: Determine the estimated diameter value by combining the estimated diameter value of the rod body and the estimated diameter value of the thickness.

[0155] The estimated diameter value refers to the diameter value corresponding to the outer diameter of the sealing ring 14 after selection.

[0156] By combining the estimated diameter value of the rod body with the estimated diameter value of the thickness, the estimated diameter value can be determined for subsequent use.

[0157] To further ensure the rationality of the estimated diameter value, it is necessary to perform a further separate analysis and calculation on the estimated diameter value, which will be explained in detail through the steps shown below.

[0158] The method for determining the estimated diameter value includes the following steps: S256851: The deviation value of the estimated diameter is calculated based on the estimated diameter value of the rod body and the estimated diameter value of the thickness.

[0159] Specifically, the difference between the estimated diameter of the rod and the estimated diameter of the thickness is calculated, and the absolute value of the calculation result is used as the estimated diameter deviation value for convenient subsequent use.

[0160] S256852: Determine the increase in diameter deviation based on the estimated diameter deviation value.

[0161] The increase in diameter deviation refers to the increase corresponding to the adjustment of the outer diameter of the sealing ring 14.

[0162] The estimated diameter deviation value is input into a preset deviation increase database to obtain the diameter deviation increase value, which is convenient for subsequent use.

[0163] The deviation increase database has a pre-stored table of different estimated diameter deviation ranges and corresponding diameter deviation increase values. The deviation increase database is obtained after the operator pre-inputs the data.

[0164] For example, the deviation increase database can be set to a diameter deviation increase value of 0.1 when the estimated diameter deviation range is 0 to 0.2, a diameter deviation increase value of 0.15 when the estimated diameter deviation range is 0.2 to 0.5, and a diameter deviation increase value of 0.2 when the estimated diameter deviation range is greater than 0.5.

[0165] S256853: Determine whether the estimated diameter of the rod is less than the estimated diameter of the thickness. If yes, proceed to S256854; if no, proceed to S256855.

[0166] Specifically, by adjusting whether the estimated diameter of the rod is less than the estimated diameter of the thickness, it is determined whether to select the estimated diameter of the rod as the benchmark.

[0167] S256854: Calculate the sum between the estimated diameter of the rod and the increase in diameter deviation, and use it as the estimated diameter value.

[0168] When the estimated diameter of the rod is less than the estimated diameter of the thickness, the estimated diameter of the rod is selected as the benchmark. Therefore, the sum of the estimated diameter of the rod and the increase in diameter deviation is calculated, and the calculation result is used as the estimated selected diameter value, thereby improving the accuracy of the obtained estimated selected diameter value.

[0169] S256855: Calculate the sum between the estimated diameter value and the increase in diameter deviation, and use it as the estimated diameter value.

[0170] When the estimated diameter of the rod is not less than the estimated diameter of the thickness, the estimated diameter of the thickness is selected as the benchmark. Therefore, the sum of the estimated diameter of the thickness and the increase in diameter deviation is calculated, and the calculation result is used as the estimated selected diameter value, thereby improving the accuracy of the obtained estimated selected diameter value.

[0171] S25686: Determine the diameter selection specification parameters based on the estimated diameter value, and use the diameter selection specification parameters as the sealing specification parameters.

[0172] The diameter selection specification parameter refers to the dimensional parameter corresponding to the outer diameter of the sealing ring 14.

[0173] By combining the estimated diameter value, the reference thickness value, and the rod diameter value, the inner and outer diameters and thickness of the sealing ring 14 are obtained and used as diameter selection specification parameters. Then, the diameter selection specification parameters are used as sealing specification parameters. The obtained sealing specification parameters are combined to facilitate subsequent use.

[0174] S257: The specifications are based on the combination of the cover specifications, sleeve specifications, sealing specifications, steel ball specifications, coil specifications, iron core specifications, rod specifications, and spring specifications.

[0175] By combining the specifications of the cover, sleeve, seal, steel ball, coil, iron core, rod, and spring, a set of dimensional parameters corresponding to the valve cover 12, fixed sleeve 6, sealing ring 14, steel ball valve core 8, electromagnetic coil 9, moving iron core 10, push rod 11, and return spring 15 is obtained and used as relevant specification parameters, thereby improving the accuracy of the obtained relevant specification parameters.

[0176] S26: Combine dimensional specifications with relevant specifications and use them as production specifications.

[0177] In this process, by combining dimensional specifications with relevant specifications, the specifications for manufacturing the electromagnetic switching valve are obtained.

[0178] S3: Based on the production specifications, the valve body 1, valve seat 4, valve cover 12, fixed sleeve 6, steel ball valve core 8, moving iron core 10, and push rod 11 are manufactured, and the electromagnetic coil 9, sealing ring 14, and return spring 15 are selected based on the production specifications.

[0179] The production specifications are used to obtain the external dimensions of valve body 1, valve seat 4, valve cover 12, fixed sleeve 6, ball valve core 8, moving iron core 10, push rod 11, electromagnetic coil 9, sealing ring 14, and return spring 15. The valve body 1, valve seat 4, valve cover 12, fixed sleeve 6, ball valve core 8, moving iron core 10, and push rod 11 are produced, and the electromagnetic coil 9, sealing ring 14, and return spring 15 are selected to facilitate subsequent installation and production.

[0180] S4: Based on the preset execution module installation procedure, place the ball valve core 8 on the valve seat 4, and then install the fixing sleeve 6 on the valve seat 4 after covering the ball valve core 8. Sleeve the sealing ring 14 on the push rod 11, insert the push rod 11 into the valve port 7 of the fixing sleeve 6, and then sleeve the valve cover 12 on the push rod 11 and connect it to the valve body 1.

[0181] The execution module installation process refers to the installation of the ball valve core 8, valve seat 4, fixing sleeve 6, and push rod 11. This process is obtained through pre-input by the operator.

[0182] The robot arm is controlled by the preset execution module installation procedure to sequentially perform the installation steps of the ball valve core 8, the fixing sleeve 6 and the push rod 11. The ball valve core 8 is placed on the valve seat 4, the fixing sleeve 6 is placed on the valve seat 4 after covering the ball valve core 8, the sealing ring 14 is put on the push rod 11, the push rod 11 is inserted into the valve port 7 of the fixing sleeve 6, and the valve cover 12 is put on the push rod 11 and connected to the valve body 1, which facilitates the subsequent installation.

[0183] S5: Based on the preset control module installation procedure, the reset spring 15 and the movable iron core 10 are installed on the electromagnetic coil 9.

[0184] The control module installation process refers to the installation of the reset spring 15, the movable iron core 10, and the electromagnetic coil 9. The control module installation process is obtained through pre-input by the operator.

[0185] The robot arm is controlled by the preset control module installation procedure to perform the installation steps of the reset spring 15 and the movable iron core 10 in sequence. The reset spring 15 is placed in the spring release groove 17 of the movable iron core 10, and then the electromagnetic coil 9 is sleeved on the movable iron core 10 to facilitate subsequent installation.

[0186] S6: Based on the preset assembly installation process, the top rod 11 and the movable iron core 10 are coaxially fitted and installed, and the electromagnetic coil 9 and the valve cover 12 are installed and fixed to form an electromagnetic switching valve.

[0187] The assembly installation process refers to the process of installing the valve body 1 and the solenoid coil 9. The assembly installation process is obtained through pre-input by the operator.

[0188] The robotic arm, controlled by the assembly process, inserts the push rod 11 into the rod slot 16 of the movable iron core 10, thus achieving coaxial installation. The electromagnetic coil 9 is then installed and fixed to the valve cover 12 to form an electromagnetic switch valve. The movable iron core 10 drives the push rod 11 to move, which in turn moves the ball valve core 8, controlling the opening and closing of the valve port 7. This reduces the risk of on / off failures caused by coaxiality errors after prolonged use, facilitating the long-term effective use of the electromagnetic switch valve.

[0189] During installation, since the axis of the rod groove 16 coincides with the axis of the push rod 11, coaxiality can be guaranteed when the push rod 11 is installed.

[0190] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A method for manufacturing an electromagnetic switching valve, characterized in that, include: S1: Application scenarios for data collection requirements; S2: Determine production specifications and parameters based on the application scenario; S3: Based on the production specifications, the valve body (1), valve seat (4), valve cover (12), fixed sleeve (6), steel ball valve core (8), moving iron core (10), and push rod (11) are produced, and the electromagnetic coil (9), sealing ring (14), and return spring (15) are selected based on the production specifications. S4: Based on the preset execution module installation procedure, the ball valve core (8) is placed on the valve seat (4), and the fixing sleeve (6) is placed on the ball valve core (8) and then installed on the valve seat (4). The sealing ring (14) is placed on the top rod (11), and the top rod (11) is inserted into the valve port (7) preset in the fixing sleeve (6). Then the valve cover (12) is placed on the top rod (11) and connected to the valve body (1). S5: Based on the preset control module installation procedure, the reset spring (15) and the movable iron core (10) are installed on the electromagnetic coil (9); S6: Based on the preset assembly installation process, the top rod (11) and the movable iron core (10) are coaxially fitted and installed, and the electromagnetic coil (9) and the valve cover (12) are installed and fixed to form an electromagnetic switch valve.

2. The method for manufacturing an electromagnetic switching valve according to claim 1, characterized in that, Methods for determining production specifications include: S21: Determine the placement space parameters and fluid flow rate values ​​based on the application scenario; S22: Determine the external dimension parameters based on the placement space parameters; S23: Determine the internal capacity value based on the fluid flow rate value; S24: Combine the external dimensional parameters and the internal capacity value to determine the execution specification parameters, which include the dimensional specification parameters of the valve body (1) and the valve seat (4); S25: Determine the relevant specification parameters according to the execution specification parameters. The relevant specification parameters include the size specifications of the valve cover (12), the fixed sleeve (6), the steel ball valve core (8), the movable iron core (10), the electromagnetic coil (9), the sealing ring (14), the reset spring (15), and the top rod (11). S26: Combine dimensional specifications with relevant specifications and use them as production specifications.

3. The method for producing an electromagnetic switching valve according to claim 2, characterized in that, The methods for determining relevant specifications and parameters include: S251: Based on the execution specification parameters, retrieve the size specification parameters of the valve body (1) and the valve seat (4), and use the size specification parameters of the valve body (1) as external specification parameters and the size specification parameters of the valve seat (4) as internal specification parameters. S252: Determine the cover specifications of the valve cover (12), the coil specifications of the electromagnetic coil (9), and the core specifications of the movable iron core (10) based on the external specifications. S253: Determine the seat-to-cover distance value by combining the internal specification parameters and the cover specification parameters; S254: Determine the ball specifications of the ball valve core (8) according to the internal specifications; S255: Determine the sleeve specifications of the fixing sleeve (6) by combining the seat cover spacing value and the steel ball specification parameters; S256: Combine the specifications of the steel ball, the sleeve, and the iron core to determine the specifications of the top rod (11), the sealing specifications of the sealing ring (14), and the spring specifications of the return spring (15). S257: The specifications are based on the combination of the cover specifications, sleeve specifications, sealing specifications, steel ball specifications, coil specifications, iron core specifications, rod specifications, and spring specifications.

4. A method for manufacturing an electromagnetic switching valve according to claim 3, characterized in that, The methods for determining the specifications and parameters of the sleeve include: S2551: Retrieve steel ball diameter value based on steel ball specification parameters; S2552: Determine the required limit spacing, limit thickness, and opening diameter based on the steel ball diameter; S2553: Calculate the sum between the required limit spacing value and the required limit thickness value and use it as the extension reference length value; S2554: Determine the overall length of the sleeve based on the extended reference length value and the preset fixed ratio coefficient; S2555: The overall length of the sleeve, the thickness required for the limit, and the opening diameter are combined and used as the sleeve specification parameters.

5. A method for manufacturing an electromagnetic switching valve according to claim 3, characterized in that, The methods for determining the specifications and parameters of the rod include: S2561: Determine the maximum diameter based on the sleeve specifications; S2562: Determine the maximum length based on the maximum diameter and the preset length-to-diameter ratio; S2563: Determine the minimum diameter based on the steel ball specifications; S2564: Determine the minimum length based on the minimum diameter and the preset length-to-diameter ratio; S2565: Retrieve core length value based on core specification parameters; S2566: Determine the length selection value by combining the core length value, the maximum length value, and the minimum length value; S2567: Determine the length selection specification parameters based on the length selection value, and use the length selection specification parameters as the rod body specification parameters.

6. A method for manufacturing an electromagnetic switching valve according to claim 5, characterized in that, The methods for determining the length selection value include: S25661: Determine the appropriate length value based on the core length value; S25662: Determine the length reference interval based on the maximum and minimum length values; S25663: Determine whether the appropriate length value is within the length reference range; S25664: If yes, then the appropriate length value will be used as the length selection value; S25665: If not, calculate the difference between the selected length value and the maximum length value and use it as the maximum deviation value; S25666: Calculate the difference between the selected length value and the minimum length value and use it as the minimum deviation value; S25667: Based on the comparison between the maximum and minimum deviation values, select the maximum or minimum length value as the length selection value.

7. A method for manufacturing an electromagnetic switching valve according to claim 4, characterized in that, Methods for determining sealing specifications include: S25681: Calculate the difference between the seat cover spacing value and the extended reference length value and use it as the reference thickness value; S25682: Determine the estimated diameter value based on the reference thickness value; S25683: Retrieve rod diameter value based on rod specification parameters; S25684: Determine the estimated diameter of the rod based on the rod diameter value; S25685: Determine the estimated diameter value by combining the estimated diameter value of the rod body and the estimated diameter value of the thickness; S25686: Determine the diameter selection specification parameters based on the estimated diameter value, and use the diameter selection specification parameters as the sealing specification parameters.

8. A method for manufacturing an electromagnetic switching valve according to claim 7, characterized in that, The methods for determining the estimated diameter value include: S256851: The estimated diameter deviation is calculated based on the estimated diameter value of the rod body and the estimated diameter value of the thickness. S256852: Determine the increase in diameter deviation based on the estimated diameter deviation value; S256853: Determine whether the estimated diameter of the rod is less than the estimated diameter of the thickness; S256854: If yes, calculate the sum between the estimated diameter value of the rod and the increase in diameter deviation and use it as the estimated diameter value; S256855: If not, calculate the sum between the estimated diameter value and the increase in diameter deviation and use it as the estimated diameter value.

9. An electromagnetic switching valve, characterized in that, The method for manufacturing an electromagnetic switching valve according to any one of claims 1 to 8 includes: The valve body (1) has a fluid inlet (2) and a fluid outlet (3); The valve seat (4) is integrally disposed inside the valve body (1) and has a connecting hole (5) for connecting the fluid inlet (2) and the fluid outlet (3). A fixing sleeve (6) is fitted onto the valve seat (4), and a valve port (7) is provided on the side away from the valve seat (4). The ball valve core (8) is limited and installed between the valve seat (4) and the fixed sleeve (6), and is used to control the valve port (7) to open or close. An electromagnetic coil (9) is disposed on the valve body (1) and is used to receive external control signals and generate a magnetic field; The movable iron core (10) slides through the electromagnetic coil (9) and is used to be driven by the magnetic field generated by the electromagnetic coil (9) to move the steel ball valve core (8) towards the valve seat (4); A push rod (11) is disposed between the movable iron core (10) and the ball valve core (8); A valve cover (12) is provided between the valve body (1) and the electromagnetic coil (9). The valve cover (12) has a through hole (13) for the push rod (11) to pass through. A sealing ring (14) is fitted on the push rod (11). The sealing ring (14) is located on the side of the valve cover (12) away from the electromagnetic coil (9). The electromagnetic coil (9) is provided with a return spring (15) on the side away from the push rod (11) to drive the movable iron core (10) to always abut against the push rod (11). The movable iron core (10) is provided with a rod release groove (16) for placing the push rod (11) and a spring release groove (17) for placing the return spring (15).

10. An electromagnetic switching valve according to claim 9, characterized in that: The fluid inlet (2) is located on the circumferential sidewall of the valve body (1), and the fluid outlet (3) is located on the side of the valve body (1) away from the electromagnetic coil (9). The valve body (1) is provided with a first filter screen (18) for covering the fluid inlet (2) and a second filter screen (19) for covering the fluid outlet (3).

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