A clamping assembly device for a solenoid valve push rod

Abstract

This utility model belongs to the field of electromagnetic valve technology and relates to a pressing and assembly device for an electromagnetic valve push rod. It includes: a frame, a pressing unit, and a pressing unit. The pressing unit includes a pressing base connected to the frame. A side connecting plate is connected to the pressing base, and a first power unit is connected to the side connecting plate. A lower connecting plate is connected to the end of the movable part of the first power unit, and the lower end of the guide shaft is connected to the lower connecting plate. A pressing plate is connected to the lower connecting plate. The pressing plate has stepped holes. The pressing unit includes a pressing power unit connected to the frame. A pressing assembly is connected to the movable part of the pressing power unit. The advantages of this structure are: simple structure, precise pressing structure with pre-pressurization and fine pressing, effectively overcoming production assembly dimensional errors, significantly improving pressing accuracy, and greatly improving production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of electromagnetic valve technology, specifically, it relates to a pressing and assembly device for an electromagnetic valve push rod. Background Technology

[0002] In the automotive industry, the press-fitting technology for solenoid valve pushrods exhibits significant characteristics of high precision and automation. Currently, the control of pressure accuracy is extremely stringent, requiring error to be controlled within 0.01 millimeters to ensure the stable performance of the solenoid valve.

[0003] For the ejector rod of a solenoid valve, auxiliary positioning is crucial during the press-fitting process, requiring a high degree of pre-positioning accuracy. In automated production lines, it's generally not advisable to use a robot to pre-position the ejector rod before final press-fitting, as this causes significant damage to the robot, introduces misalignment into the ejector rod's position, and prevents the release of press-fitting force, leading to bending and improper installation. Therefore, improvements are necessary. Utility Model Content

[0004] To address the aforementioned problems in the prior art, this utility model provides a pressing and assembly device for a solenoid valve push rod, which has a simple structure, is easy to operate, and is highly practical.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] As one aspect of this utility model, a pressing and assembly device for a solenoid valve push rod is proposed, which includes: a frame, a pressing unit and a pressing unit, wherein the pressing unit and the pressing unit are respectively connected to the frame;

[0007] The clamping unit includes a clamping base connected to a frame; a side connecting plate is connected to the clamping base, a first power unit is connected to the side connecting plate, and a fixed part of the first power unit is connected to the side connecting plate; a lower connecting plate is connected to the end of the movable part of the first power unit, and the lower end of the guide shaft is connected to the lower connecting plate; a clamping plate is connected to the lower connecting plate; and a stepped hole is provided on the clamping plate.

[0008] The pressing unit is located on the side of the pressing unit; the pressing unit includes a pressing power unit, which is connected to the frame; a pressing assembly is connected to the movable part of the pressing power unit.

[0009] Optionally, the press-fit assembly includes a press-fit base with a guide blind hole and a mounting groove at its bottom. A guide hole connects the mounting groove and the guide blind hole. The diameter of the guide hole is smaller than the diameter of the mounting groove, which is also smaller than the diameter of the guide blind hole. An O-ring is provided in the mounting groove, with its inner diameter matching the diameter of the guide hole. A clamping block is connected to the bottom of the press-fit base, pressing the O-ring into the mounting groove. A through hole is provided in the center of the clamping block. The center lines of the through hole, the mounting groove, the O-ring, the guide hole, and the guide blind hole coincide.

[0010] A pressure transmission rod is movably inserted into the guide blind hole, and the upper part of the pressure transmission rod is detachably connected to the movable part of the press-fitting power unit; the middle and lower parts of the pressure transmission rod are movably inserted into the guide blind hole.

[0011] A second elastic element is sleeved on the pressure transmission rod, and the second elastic element is located between the upper boss of the pressure transmission rod and the upper end face of the press-fit base.

[0012] Optionally, the upper and lower surfaces of the through hole extend outward to form a first protrusion and a second protrusion, respectively, and the through hole penetrates the first protrusion and the second protrusion.

[0013] Optionally, the side of the press base is provided with a first stroke limiting elongated hole, and the lower part of the pressure transmission rod is provided with a limiting component mounting hole. A limiting pin is connected to the limiting component mounting hole. When the pressure transmission rod passes through the guide blind hole, the limiting pin is located in the first stroke limiting elongated hole.

[0014] Optionally, the centerline of the linear bearing is parallel to the direction of movement of the moving part of the first power unit.

[0015] Optionally, the side connecting plate is provided with at least one linear bearing, and a guide shaft is slidably connected to the linear bearing;

[0016] The guide shaft is provided with a first stop and a second stop at intervals, the first stop and the second stop being located on the upper and lower sides of the linear bearing; a first elastic element is sleeved on the guide shaft; the first elastic element is located between the first stop and the upper end face of the linear bearing.

[0017] Optionally, a floating joint is also included, wherein the end of the movable part of the first power unit is connected to a lower connecting plate via the floating joint.

[0018] Optionally, the press-fit base has an exhaust hole on its side, which is connected to a guide blind hole.

[0019] Optionally, the centerline of the vent hole is perpendicular to the centerline of the guide blind hole.

[0020] The advantages of the pressing and assembly device for the solenoid valve push rod of this utility model are specifically reflected in the following aspects: simple structure, adopting a precise pressing structure of pre-pressing and fine pressing, effectively overcoming production assembly dimensional errors, significantly improving the accuracy of pressing, convenient operation, strong practicality, and greatly improving production efficiency. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0022] Figure 1 This is a schematic diagram of the structure of the pressing and assembly device for the solenoid valve push rod of this utility model;

[0023] Figure 2 This is a schematic diagram of the pressing unit of this utility model;

[0024] Figure 3 This is a schematic diagram of the pressing unit of this utility model;

[0025] Figure 4 This is a cross-sectional view of the pressing unit of this utility model;

[0026] Figure 5 This is a diagram showing the fit between the press-fitting unit and the push rod of this utility model. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] One embodiment of this application provides a clamping assembly device for a solenoid valve push rod, such as... Figures 1-2 As shown, it includes: frame 1, which serves as a support;

[0029] The clamping unit 2 is connected to the frame 1;

[0030] Pressing unit 3 is connected to frame 1;

[0031] The clamping unit 2 includes a clamping base 21, which is connected to the frame 1. A side connecting plate 22 is connected to the clamping base 21, and a first power unit 23 is connected to the side connecting plate 22. As an example, the first power unit 23 is a cylinder, the structure of which is existing technology and will not be described in detail here. The movable part of the first power unit 23 faces downward, and the fixed part of the first power unit 23 is connected to the side connecting plate 22. At least one linear bearing 24 is provided on the side connecting plate 22. As an example, in this embodiment, there are two linear bearings 24, located on both sides of the first power unit 23. The centerline of the linear bearing 24 is... The movement direction of the movable part of the first power unit 23 is parallel to that of the linear bearing 24; a guide shaft 25 is slidably connected to the linear bearing 24. It should be noted that the number of guide shafts 25 is the same as the number of linear bearings 24; a first stop 26 and a second stop 27 are spaced apart on the guide shaft 25. The first stop 26 and the second stop 27 are located on the upper and lower sides of the linear bearing 24, serving as limits on the sliding stroke of the guide shaft 25 on the linear bearing 24; a first elastic element 28 is sleeved on the guide shaft 25. The first elastic element 28 is a spring; the first elastic element 28 is located between the first stop 26 and the upper end face of the linear bearing 24, and is used for the reset of the guide shaft 25 after it is pressed down.

[0032] The end of the movable part of the first power unit 23 is connected to the lower connecting plate 29 via a floating joint 210. It should be noted that the structure of the floating joint 210 is prior art and will not be described in detail here. The lower end of the guide shaft 25 is connected to the lower connecting plate 29. When the first power unit 23 drives the lower connecting plate 29 to descend or rise, the guide shaft 25 acts as a guide. A pressure plate 211 is connected to the lower connecting plate 29. The pressure plate 211 is provided with a stepped hole 212 for cooperating with the pressing component. During operation, the first power unit 23 works, driving the pressure plate 211 to descend. During the descent, the first power unit 23 overcomes the elastic force of the first elastic element 28 and descends under the guidance of the guide shaft 25, so that the stepped hole 212 cooperates with the pressing component. The pressure plate 211 presses and limits the pressing component, which facilitates the operation of the pressing unit 3.

[0033] Specifically, in this embodiment, such as Figures 1-5As shown, the pressing unit 3 is located on the side of the pressing unit 2; the pressing unit 3 includes a pressing power unit 31, which is connected to the frame 1; a pressing assembly 32 is connected to the movable part of the pressing power unit 31, and the movable part of the pressing power unit 31 is arranged downwards; the pressing assembly 32 is located on the side of the side connecting plate 22; the pressing assembly 32 includes a pressing base 321, on which a guide blind hole 322 is provided, and at the bottom of the pressing base 321, an installation groove 323 is provided; a guide hole 324 is provided between the installation groove 323 and the guide blind hole 322, and the guide hole 324 connects the installation groove 323 and the guide blind hole 322; the diameter of the guide hole 324 is smaller than the diameter of the installation groove 323, and the diameter of the installation groove 323 is smaller than the diameter of the guide blind hole 322; the diameter of the guide hole 324 is adapted to the size of the solenoid valve's push rod; An O-ring 325 is provided in the mounting groove 323. The inner diameter of the O-ring 325 is the same as the diameter of the guide hole 324. A clamping block 326 is connected to the bottom of the press-fit base 321. The clamping block 326 presses the O-ring 325 into the mounting groove 323. A through hole 327 is provided in the middle of the clamping block 326. The upper and lower surfaces of the through hole 327 extend outward to form a first protrusion 328 and a second protrusion 329, respectively. The through hole 327 passes through the first protrusion 328 and the second protrusion 329. The end face of the first protrusion 328 presses the O-ring 325. The second protrusion 329 serves as the guide for the solenoid valve's push rod. The diameter of the through hole 327 is adapted to the size of the solenoid valve's push rod. The center lines of the through hole 327, the mounting groove 326, the O-ring 325, the guide hole 324, and the guide blind hole 322 coincide.

[0034] Furthermore, a pressure transmission rod 3210 is movably inserted into the guide blind hole 322, and the upper part of the pressure transmission rod 3210 is detachably connected to the movable part of the pressing power unit 31; the middle and lower part of the pressure transmission rod 3210 is movably inserted into the guide blind hole 322; a first stroke limiting elongated hole 3211 is opened on the side of the pressing base 321, and a limiting component mounting hole is opened at the lower part of the pressure transmission rod 3210. A limiting pin 3213 is connected to the limiting component mounting hole. When the pressure transmission rod 3210 is inserted into the guide blind hole 322, the limiting pin 3213 is located in the first stroke limiting elongated hole 3211, thereby limiting the stroke of the pressure transmission rod 3210.

[0035] The pressure transmission rod 3210 is fitted with a second elastic element 3214, which is located between the upper boss 3215 of the pressure transmission rod 3210 and the upper end face of the press base 321. The second elastic element 3214 keeps the pressure transmission rod 3210 and the upper end face of the press base 321 in a telescopic state. At this time, the limiting pin 3213 is located at the upper limit end of the first stroke limiting elongated hole 3211. The movable part of the press power unit 31 presses down, and the pressure transmission rod 3210 has to overcome the elastic force of the second elastic element 3214 to descend. The lower end of the pressure transmission rod 3210 presses the top rod of the solenoid valve that passes through the guide hole 324 into the press component. When the limiting pin 3213 is located at the lower limit end of the first stroke limiting elongated hole 3211, the press is completed.

[0036] Furthermore, in this embodiment, the side of the press-fit base 321 is provided with an exhaust hole 3216, which is connected to the guide blind hole 322. The center line of the exhaust hole 3216 is perpendicular to the center line of the guide blind hole 322. Preferably, the exhaust hole 3216 is flush with the bottom of the guide blind hole 322, which can exhaust the air in the guide blind hole 322.

[0037] In this embodiment, during operation, firstly, the pressing component is fixed on the tooling fixture, and the push rod of the solenoid valve is mounted on the pressing component by a robotic arm. The clamping plate 211 clamps and limits the pressing component. Then, the pressing power unit 31 presses down and transmits force through the pressure transmission rod 3210. The push rod is coarsely guided and inserted through the through hole 327 of the clamping block 326. The O-ring 325 fixes the push rod, and the guide hole 324 of the pressing base 321 precisely positions the push rod. The second elastic element 3214 is compressed to allow the pressure transmission rod 3210 to be precisely controlled and pressed in. The pressing depth is determined by the length of the first stroke limiting elongated hole 3211. The operation is simple and highly practical.

[0038] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0039] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0040] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0041] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0042] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0043] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] The above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall be covered by the present utility model.

Claims

1. A press-fitting device for a solenoid valve poppet, characterized by comprising: It includes: The machine includes a frame, a clamping unit, and a pressing unit, wherein the clamping unit and the pressing unit are respectively connected to the frame; The clamping unit includes a clamping base connected to a frame; a side connecting plate is connected to the clamping base, a first power unit is connected to the side connecting plate, and a fixed part of the first power unit is connected to the side connecting plate; a lower connecting plate is connected to the end of the movable part of the first power unit; a clamping plate is connected to the lower connecting plate; and a stepped hole is provided on the clamping plate. The pressing unit is located on the side of the pressing unit; the pressing unit includes a pressing power unit, which is connected to the frame; a pressing assembly is connected to the movable part of the pressing power unit.

2. The electromagnetic valve poppet rod press-fitting device according to claim 1, wherein The press-fit assembly includes a press-fit base with a guide blind hole and a mounting groove at its bottom. A guide hole connects the mounting groove and the guide blind hole. The diameter of the guide hole is smaller than the diameter of the mounting groove, which in turn is smaller than the diameter of the guide blind hole. An O-ring is installed in the mounting groove, with its inner diameter matching the diameter of the guide hole. A clamping block is connected to the bottom of the press-fit base, pressing the O-ring into the mounting groove. A through hole is located in the center of the clamping block. The center lines of the through hole, the mounting groove, the O-ring, the guide hole, and the guide blind hole coincide. A pressure transmission rod is movably inserted into the guide blind hole, and the upper part of the pressure transmission rod is detachably connected to the movable part of the press-fitting power unit; the middle and lower parts of the pressure transmission rod are movably inserted into the guide blind hole. A second elastic element is sleeved on the pressure transmission rod, and the second elastic element is located between the upper boss of the pressure transmission rod and the upper end face of the press-fit base.

3. The electromagnetic valve poppet rod press-fitting device according to claim 2, wherein The upper and lower surfaces of the through hole extend outward to form a first protrusion and a second protrusion, respectively, and the through hole penetrates the first protrusion and the second protrusion.

4. The electromagnetic valve poppet rod press-fitting device according to claim 2, wherein The side of the press base is provided with a first stroke limiting elongated hole, and the lower part of the pressure transmission rod is provided with a limiting component mounting hole. A limiting pin is connected to the limiting component mounting hole. When the pressure transmission rod passes through the guide blind hole, the limiting pin is located in the first stroke limiting elongated hole.

5. The squirming assembly device for the solenoid poppet rod according to claim 1, wherein The side connecting plate is provided with at least one linear bearing, and a guide shaft is slidably connected to the linear bearing; the lower end of the guide shaft is connected to the lower connecting plate. The guide shaft is provided with a first stop and a second stop at intervals, the first stop and the second stop being located on the upper and lower sides of the linear bearing; a first elastic element is sleeved on the guide shaft; the first elastic element is located between the first stop and the upper end face of the linear bearing.

6. The electromagnetic valve poppet rod press-fitting device according to claim 5, wherein The centerline of the linear bearing is parallel to the direction of motion of the moving part of the first power unit.

7. The press-fitting device for the top rod of a solenoid valve according to claim 1, wherein It also includes a floating joint, and the end of the movable part of the first power unit is connected to a lower connecting plate via the floating joint.

8. The press-fitting device for the top rod of a solenoid valve according to claim 2, wherein The side of the press base is provided with an exhaust hole, which is connected to the guide blind hole.

9. The squirming assembly device for the solenoid poppet rod according to claim 8, wherein The centerline of the vent is perpendicular to the centerline of the guide blind hole.

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