Shock absorber third cylinder electromagnetic valve seat press fitting device and method thereof

Abstract

The invention relates to a shock absorber third cylinder electromagnetic valve seat press-fitting device and method, and relates to the technical field of precise assembly of automobile key parts, the shock absorber third cylinder electromagnetic valve seat press-fitting device and method are used for press-fitting an electromagnetic valve seat into a mounting hole of a third cylinder, the shock absorber third cylinder electromagnetic valve seat press-fitting device comprises a press-fitting assembly and a positioning assembly, and the press-fitting assembly is provided with a support, a fixing plate, a power piece and a pressing head; the power piece is located on the upper side of the support and fixed to the fixing plate. The power piece can drive the pressing head to move in the vertical direction. The positioning assembly is provided with a first mounting part, a second mounting part, a first pressing rod and a second pressing rod, the first mounting part and the second mounting part are arranged at intervals, one end of the first pressing rod is inserted into the first mounting part, and the other end of the first pressing rod abuts against the second pressing rod; the third cylinder sleeve is arranged outside the first pressing rod, and the mounting hole is located in the lower side of the electromagnetic valve seat in the vertical direction. By means of the structure, the assembling precision of the electromagnetic valve seat is effectively improved, accurate positioning of assembling of the electromagnetic valve seat is achieved, and the technical problem that in the prior art, the assembling precision is insufficient due to positioning deflection is solved.

Description

Technical Field

[0001] This invention relates to the field of precision assembly technology for key automotive components, and in particular to a device and method for press-fitting the solenoid valve seat of the third cylinder of a shock absorber. Background Technology

[0002] In the field of automotive shock absorption systems, electronically controlled shock absorbers have become an important component of modern automotive chassis technology due to their ability to adjust damping force in real time according to driving conditions. Currently, the third cylinder and solenoid valve seat of automotive electronically controlled shock absorbers require an interference fit assembly. Existing press-fit techniques largely follow the assembly approach of traditional hydraulic shock absorbers, resulting in a core problem of insufficient assembly accuracy due to positioning misalignment. In traditional techniques, firstly, the chamfer between the valve seat and the mounting hole is prone to unevenness due to machining errors during press-fitting. Existing press heads have fixed pressure distribution and cannot accommodate chamfer differences, easily leading to positioning misalignment. Secondly, parts are prone to wobbling along the axis of the third cylinder, and commonly used adsorption or positioning structures are insufficient to stably restrain the parts, further exacerbating positioning deviations. These two factors combined result in substandard interference fit accuracy between the solenoid valve seat and the mounting hole, leading to insecure installation of the solenoid valve seat. This significantly increases the probability of the solenoid valve seat falling off during subsequent use, directly affecting the installation quality of the subsequent solenoid valve. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the defects of insufficient assembly accuracy caused by positioning misalignment in the prior art, thereby providing a shock absorber third cylinder solenoid valve seat press-fitting device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A pressing device for a third cylinder solenoid valve seat of a shock absorber includes: a pressing assembly comprising a bracket, a fixed plate, a power component, and a pressing head. The fixed plate is fixed to the bracket, the power component is located on the upper side of the bracket and fixed to the fixed plate, and the pressing head is located on the lower side of the fixed plate. The power component can drive the pressing head to move vertically, and the solenoid valve seat is disposed on the pressing head. Because the fixed plate is fixed to the bracket, the power component is located on the upper side of the bracket and fixed to the fixed plate, and the pressing head is located on the lower side of the fixed plate, the power component can drive the pressing head to move vertically, thereby determining the movement trajectory of the pressing head in the third cylinder solenoid valve seat pressing device of the shock absorber, and thus achieving the horizontal positioning of the solenoid valve seat.

[0005] The positioning assembly includes a first mounting component, a second mounting component, a first pressure rod, and a second pressure rod. The first mounting component and the second mounting component are spaced apart. The second pressure rod is detachably connected to both the first and second mounting components. One end of the first pressure rod is inserted into the first mounting component, and the other end of the first pressure rod abuts against the second pressure rod. A third cylinder is sleeved outside the first pressure rod, and the mounting hole is located on the lower side of the solenoid valve seat in the vertical direction. Because the other end of the first pressure rod abuts against the second pressure rod, and the third cylinder is sleeved outside the first pressure rod, the third cylinder is fixed, thereby fixing the mounting hole and achieving high-precision assembly of the solenoid valve seat.

[0006] Preferably, the press-fit assembly further includes a floating component, which is disposed on the side of the press head near the power component. The floating component includes a positioning part and a main body. The lower vertical end face of the positioning part is provided with annularly distributed suction cups and a central hole at the center. The main body is provided with multiple through slots. The solenoid valve seat and the floating component are fixed by a detachable connection through the suction cups and the central hole. Because the lower vertical end face of the positioning part is provided with annularly distributed suction cups and a central hole at the center, and the main body is provided with multiple through slots, and the solenoid valve seat and the floating component are fixed by a detachable connection through the suction cups and the central hole, the solenoid valve is fixed to the floating component through the suction cups, thereby facilitating the downward press of the press head and the downward movement of the solenoid valve seat to complete the connection with the mounting hole.

[0007] Preferably, multiple first suction cups are provided and spaced apart along the axis of the third cylinder. Each first suction cup is elliptical, with its minor axis parallel to the axis of the third cylinder and its major axis perpendicular to the axis of the third cylinder. Multiple second suction cups are provided and spaced apart along a direction perpendicular to the axis of the third cylinder. Each second suction cup is elliptical, with its major axis parallel to the axis of the third cylinder and its minor axis perpendicular to the axis of the third cylinder. The major axis of each second suction cup is longer than that of the first suction cup, and the minor axis of each second suction cup is longer than that of the first suction cup. The first suction cup has a short axis; since the first suction cup is elliptical, and its short axis is parallel to the axis of the third cylinder, and its long axis is perpendicular to the axis of the third cylinder; multiple second suction cups are provided and spaced apart along a direction perpendicular to the axis of the third cylinder. The second suction cups are also elliptical, and their long axes are parallel to the axis of the third cylinder, and their short axes are perpendicular to the axis of the third cylinder. This allows the first and second suction cups to absorb the lateral force generated when the pressure head presses down on the third cylinder, thereby improving the service life of the positioning assembly.

[0008] Preferably, the press-fit assembly further includes a guide sleeve, a guide rod, and a movable plate. The guide sleeve is fixed to the fixed plate, the guide rod is slidably inserted into the guide sleeve, the movable plate is fixed to the lower end of the guide rod, and the press head is fixed to the movable plate. Because the guide sleeve is fixed to the fixed plate, the guide rod is slidably inserted into the guide sleeve, the movable plate is fixed to the lower end of the guide rod, and the press head is fixed to the movable plate, the power generated by the power component of the press-fit device for the third cylinder solenoid valve seat of the shock absorber is transmitted along the guide sleeve and the guide rod, thereby driving the press head on the fixed plate to reciprocate vertically.

[0009] Preferably, the press-fit assembly further includes a housing and a pressure sensor. The housing is fixed to the upper side of the movable plate, and the pressure sensor is located inside the housing and fixed to the movable plate. The press head is electrically connected to the pressure sensor. Because the housing is fixed to the upper side of the movable plate, and the pressure sensor is located inside the housing, fixed to the movable plate, and electrically connected to the pressure sensor, the force applied by the press head when pressing down to make the solenoid valve seat abut against the mounting hole can be well controlled, effectively protecting the solenoid valve seat.

[0010] Preferably, the second pressure rod has a transition surface and an abutment surface, the distance between the transition surface and the central axis of the second pressure rod is less than the distance between the abutment surface and the central axis of the second pressure rod; in the vertical direction, the projection of the first pressure rod overlaps with the projection of the abutment surface; because the second pressure rod has a transition surface and an abutment surface, the distance between the transition surface and the central axis of the second pressure rod is less than the distance between the abutment surface and the central axis of the second pressure rod; in the vertical direction, the projection of the first pressure rod overlaps with the projection of the abutment surface, so that when the first pressure rod and the second pressure rod are connected, the transition surface acts as a transition, thereby facilitating the positioning and installation of the first pressure rod and the second pressure rod.

[0011] A method for press-fitting a third cylinder solenoid valve seat in a shock absorber includes the following steps: S1, detachably connecting a second pressure rod to a second mounting component, with the transition surface and abutment surface facing upwards; S2, sleeve the third cylinder outside the first pressure rod, with one end of the first pressure rod inserted into the first mounting component, and the other end of the first pressure rod first abutting against the transition surface and then against the abutment surface, with the mounting hole of the third cylinder facing upwards; S3, installing the solenoid valve seat on the floating component, with the mounting hole located on the vertically lower side of the solenoid valve seat; S4, the power component drives the floating component and the solenoid valve seat to move vertically downwards until the solenoid valve seat is inserted into the mounting hole, the pressure sensor detects the pressure to a predetermined value, the power component drives the floating component to move vertically upwards to its original position, the pressure sensor is used for pressure detection, and a camera is set within a 20 cm radius around the mounting hole to capture the assembly position, preventing excessive pressure from damaging the solenoid valve seat while effectively monitoring the accuracy and quality of the assembly position between the mounting hole and the solenoid valve seat.

[0012] Preferably, the method further includes step S5, removing the first pressure rod, the third cylinder, and the solenoid valve seat, separating the first pressure rod and the third cylinder, taking out a new third cylinder and the solenoid valve seat, and repeating steps S2 to S4. Since the solenoid valve seat and the pressure head are detachably connected, the working efficiency of the shock absorber third cylinder solenoid valve seat pressing device is guaranteed. Removing the first pressure rod, the third cylinder, and the solenoid valve seat, separating the first pressure rod and the third cylinder, taking out a new third cylinder and the solenoid valve seat, and repeating steps S2 to S4 ensures the installation efficiency of the solenoid valve seat.

[0013] Preferably, in step S4, during the process of the power component driving the floating component and the solenoid valve seat to move vertically downwards, the solenoid valve seat is first positioned with the mounting hole, the power component stops moving, and the solenoid valve seat is inserted into the mounting hole by inertia. Because the solenoid valve seat is first positioned with the mounting hole during the process of the power component driving the floating component and the solenoid valve seat to move vertically downwards, the solenoid valve seat can be inserted into the mounting hole with an installation accuracy of ±0.1 mm, thereby greatly reducing the probability of the solenoid valve seat falling off during subsequent use.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The shock absorber third cylinder solenoid valve seat pressing device provided in the above technical solution uses the bracket, fixing plate, guide sleeve, guide rod and moving plate in the pressing assembly to limit the movement trajectory of the shock absorber third cylinder solenoid valve seat pressing device; the third cylinder is positioned by the positioning pin, and the suction force of the solenoid valve seat during pressing is controlled by the specially made suction cup, thereby ensuring the level of pressing; the power generated by the power component is transmitted to the pressure head by the lead screw, and the assembly accuracy of the solenoid valve seat is effectively improved by matching the parameters of the pressing stroke and the pressure holding process, thereby achieving precise positioning of the solenoid valve seat assembly and overcoming the technical problem of insufficient assembly accuracy and solenoid valve seat detachment caused by positioning deviation in the prior art; through the step design of the second pressure rod, both the efficiency during installation is ensured and the life of the second pressure rod under the condition of pressure eccentricity is solved, thereby further ensuring the sustainability of pressing accuracy. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the overall assembly structure of the shock absorber third cylinder solenoid valve seat press-fitting device provided by the present invention; Figure 2 A detailed structural diagram of the assembly of the shock absorber third cylinder solenoid valve seat press-fitting device provided by the present invention; Figure 3 A schematic diagram of the rear side structure of the press-fit assembly provided by the present invention; Figure 4 This is a schematic diagram of the positioning component provided by the present invention; Figure 5 This is a schematic diagram of the structure of the second pressure bar provided by the present invention; Figure 6 This is a schematic diagram of the structure of the floating component provided by the present invention.

[0017] Explanation of reference numerals in the attached figures: 1. Press-fit assembly; 11. Bracket; 12. Fixing plate; 13. Power component; 14. Press head; 15. Housing; 16. Pressure sensor; 17. Floating component; 171. Positioning part; 1711. First suction cup; 1712. Center hole; 1713. Second suction cup; 172. Main body; 1721. Through groove; 18. Guide sleeve; 19. Guide rod; 120. Moving plate; 2. Positioning assembly; 21. First mounting part; 22. Second mounting part; 23. First pressure rod; 24. Second pressure rod; 241. Transition surface; 242. Abutment surface; 3. Third cylinder. Detailed Implementation

[0018] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] Please see Figures 1 to 6 This invention provides a pressing device for the solenoid valve seat of the third cylinder of a shock absorber, including a pressing assembly 1 and a positioning assembly 2.

[0022] The press assembly 1 includes a bracket 11, a fixing plate 12, a power component 13, and a press head 14. The fixing plate 12 is fixed to the bracket 11. The power component 13 is located on the upper side of the bracket 11 and fixed to the fixing plate 12. The press head 14 is located on the lower side of the fixing plate 12. The power component 13 uses a lead screw to drive the press head 14 to move vertically. An electromagnetic valve seat is provided on the press head 14. Since the fixing plate 12 and the bracket 11 are fixed by bolts, the power component 13 is located on the upper side of the bracket 11 and fixed to the fixing plate 12, and the press head 14 is located on the lower side of the fixing plate 12, the power component 13 can drive the press head 14 to move vertically, so that the reciprocating motion trajectory of the press head 14 in the vertical direction of the shock absorber third cylinder electromagnetic valve seat press assembly device is determined, thereby realizing the horizontal positioning of the electromagnetic valve seat.

[0023] The positioning assembly 2 includes a first mounting component 21, a second mounting component 22, a first pressure rod 23, and a second pressure rod 24. The first mounting component 21 and the second mounting component 22 are spaced apart. The second pressure rod 24 is detachably connected to the first mounting component 21 and the second mounting component 22. One end of the first pressure rod 23 is inserted into the first mounting component 21, and the other end of the first pressure rod 23 abuts against the second pressure rod 24. The third cylinder 3 is sleeved outside the first pressure rod 23, and the mounting hole is located on the lower side of the solenoid valve seat in the vertical direction. Since the other end of the first pressure rod 23 abuts against the second pressure rod 24, and the third cylinder 3 is sleeved outside the first pressure rod 23, the third cylinder 3 is fixed by a positioning pin, thereby fixing the mounting hole and achieving the purpose of high-precision assembly of the solenoid valve seat.

[0024] The press assembly 1 also includes a floating component 17, which is disposed on the side of the press head 14 near the power component 13. The floating component 17 includes a positioning part 171 and a main body 172. The lower vertical end face of the positioning part 171 is provided with a first suction cup 1711 and a second suction cup 1713 arranged in a ring, and a central hole 1712 at the center. The main body 172 is provided with a plurality of through slots 1721. The solenoid valve seat and the floating component 17 are detachably connected through the first suction cup 1711 and the second suction cup 1713. The lower vertical end face of 171 is provided with a first suction cup 1711 and a second suction cup 1713 arranged in a ring, and a central hole 1712 at the center. The main body 172 is provided with multiple through slots 1721. The solenoid valve seat and the floating member 17 are detachably connected through the first suction cup 1711 and the second suction cup 1713, so that the solenoid valve is fixed to the floating member 17 through the first suction cup 1711 and the second suction cup 1713, thereby facilitating the downward movement of the pressure head 14 along with the solenoid valve seat to complete the connection with the mounting hole.

[0025] Two first suction cups 1711 are provided, spaced apart along the axis of the third cylinder 3. Each first suction cup 1711 is elliptical in shape, with its minor axis parallel to the axis of the third cylinder 3 and its major axis perpendicular to the axis of the third cylinder 3. Two second suction cups 1713 are provided, spaced apart along a direction perpendicular to the axis of the third cylinder 3. Each second suction cup 1713 is elliptical in shape, with its major axis parallel to the axis of the third cylinder 3 and its minor axis perpendicular to the axis of the third cylinder 3. The length of the major axis of the second suction cup 1713 is greater than the length of the major axis of the first suction cup 1711, and the length of its minor axis is greater than the length of its minor axis. The length of the first suction cup 1711 is greater than the length of its minor axis. Since the first suction cup 1711 is elliptical and its minor axis is parallel to the axis of the third cylinder 3, while its major axis is perpendicular to the axis of the third cylinder 3, the second suction cups 1713 are spaced apart along a direction perpendicular to the axis of the third cylinder 3. The second suction cups 1713 are elliptical and their major axis is parallel to the axis of the third cylinder 3, while their minor axis is perpendicular to the axis of the third cylinder 3. This allows the first and second suction cups 1711 and 1713 to absorb the lateral force generated when the pressure head 14 presses down on the third cylinder 3, thereby improving the service life of the positioning assembly 2.

[0026] The press assembly 1 also includes a guide sleeve 18, a guide rod 19, and a movable plate 120. The guide sleeve 18 is fixed to the fixed plate 12, the guide rod 19 is slidably inserted into the guide sleeve 18, the movable plate 120 is fixed to the lower end of the guide rod 19, and the press head 14 is fixed to the movable plate 120. Because the guide sleeve 18 is fixed to the fixed plate 12, the guide rod 19 is slidably inserted into the guide sleeve 18, the movable plate 120 is fixed to the lower end of the guide rod 19, and the press head 14 is fixed to the movable plate 120, the power generated by the power component 13 of the shock absorber third cylinder solenoid valve seat press assembly device is transmitted along the guide sleeve 18 and the guide rod 19, thereby driving the press head 14 on the fixed plate 12 to reciprocate in the vertical direction.

[0027] The press assembly 1 also includes a housing 15 and a pressure sensor 16. The housing 15 is fixed to the upper side of the movable plate 120, and the pressure sensor 16 is located inside the housing 15 and fixed to the movable plate 120. The press head 14 is electrically connected to the pressure sensor 16. Because the housing 15 is fixed to the upper side of the movable plate 120, and the pressure sensor 16 is located inside the housing 15 and fixed to the movable plate 120, and the press head 14 is electrically connected to the pressure sensor 16, the force applied by the press head 14 when pressing down to make the solenoid valve seat abut against the mounting hole can be controlled, effectively protecting the solenoid valve seat.

[0028] The second pressure rod 24 has a transition surface 241 and an abutment surface 242. The distance between the transition surface 241 and the central axis of the second pressure rod 24 is less than the distance between the abutment surface 242 and the central axis of the second pressure rod 24. In the vertical direction, the projection of the first pressure rod 23 overlaps with the projection of the abutment surface 242. Because the second pressure rod 24 has a transition surface 241 and an abutment surface 242, and the distance between the transition surface 241 and the central axis of the second pressure rod 24 is less than the distance between the abutment surface 242 and the central axis of the second pressure rod 24, in the vertical direction, the projection of the first pressure rod 23 overlaps with the projection of the abutment surface 242, so that when the first pressure rod 23 and the second pressure rod 24 are connected, the transition surface 241 acts as a transition, which facilitates the positioning and installation of the first pressure rod 23 and the second pressure rod 24.

[0029] A method for press-fitting a third cylinder solenoid valve seat in a shock absorber includes the following steps: S1, detachably connecting the second pressure rod 24 to the second mounting part 22, with the transition surface 241 and the abutment surface 242 facing upwards; S2, fitting the third cylinder 3 around the first pressure rod 23, with one end of the first pressure rod 23 inserted into the first mounting part 21, and the other end of the first pressure rod 23 first abutting against the transition surface 241 and then against the abutment surface 242, with the mounting hole of the third cylinder 3 facing upwards; S3, installing the solenoid valve seat on the floating part 17, with the mounting hole located on the vertically lower side of the solenoid valve seat; S4, the power component 13 drives the floating part 17 and the solenoid valve seat to move vertically downwards until the solenoid valve seat is inserted into the mounting hole, the pressure sensor 16 detects the pressure reaching a predetermined value, and the power component 13 drives the floating part 17 to move vertically upwards by 20cm back to its original position. S5, remove the first pressure rod 23, the third cylinder 3, and the solenoid valve seat, and separate the first pressure rod 23 and the third cylinder 3. Take out the new third cylinder 3 and the solenoid valve seat, and repeat steps S2 to S4. In step S4, during the process of the power component 13 driving the floating component 17 and the solenoid valve seat to move vertically downward, the solenoid valve seat is first positioned with the mounting hole, the power component 13 stops moving, and the solenoid valve seat is inserted into the mounting hole by inertia. Since the solenoid valve seat is first positioned with the mounting hole, the power component 13 stops moving, and the solenoid valve seat is inserted into the mounting hole by inertia during the process of the power component 13 driving the floating component 17 and the solenoid valve seat to move vertically downward, the solenoid valve seat can be inserted into the mounting hole with an installation progress of ±0.1 mm, thereby ensuring that the probability of the solenoid valve seat falling off during subsequent use is greatly reduced.

[0030] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A device for pressing a solenoid valve seat into the mounting hole of a third cylinder of a shock absorber, used to press the solenoid valve seat into the mounting hole of the third cylinder (3), characterized in that, include: The press assembly (1) includes a bracket (11), a fixing plate (12), a power component (13), and a press head (14). The fixing plate (12) is fixed to the bracket (11). The power component (13) is located on the upper side of the bracket (11) and fixed to the fixing plate (12). The press head (14) is located on the lower side of the fixing plate (12). The power component (13) can drive the press head (14) to move in the vertical direction. The press head (14) is provided with the solenoid valve seat. The positioning component (2) includes a first mounting part (21), a second mounting part (22), a first pressure rod (23), and a second pressure rod (24). The first mounting part (21) and the second mounting part (22) are spaced apart. The second pressure rod (24) is detachably connected to the first mounting part (21) and the second mounting part (22). One end of the first pressure rod (23) is inserted into the first mounting part (21), and the other end of the first pressure rod (23) abuts against the second pressure rod (24). The third cylinder (3) is sleeved on the outside of the first pressure rod (23), and the mounting hole is located on the lower side of the electromagnetic valve seat in the vertical direction.

2. The shock absorber third cylinder solenoid valve seat press-fitting device according to claim 1, characterized in that, The pressing assembly (1) also includes a floating component (17), which is disposed on the side of the pressing head (14) near the power component (13). The floating component (17) includes a positioning part (171) and a main body (172). The lower vertical end face of the positioning part (171) is provided with a first suction cup (1711) and a second suction cup (1713) arranged in a ring, and a central hole (1712) at the center. The main body (172) is provided with a plurality of through slots (1721). The solenoid valve seat and the floating component (17) are detachably connected through the first suction cup (1711) and the second suction cup (1713).

3. The shock absorber third cylinder solenoid valve seat press-fitting device according to claim 2, characterized in that, The first suction cup (1711) is provided in multiple forms and is distributed at intervals along the axis of the third cylinder (3). The first suction cup (1711) is elliptical, and the minor axis of the first suction cup (1711) is parallel to the axis of the third cylinder (3), and the major axis of the first suction cup (1711) is perpendicular to the axis of the third cylinder (3). The second suction cup (1713) is provided in multiple forms and is distributed at intervals along the axis perpendicular to the third cylinder (3). The second suction cup (1713) is elliptical, and the major axis of the second suction cup (1713) is parallel to the axis of the third cylinder (3), and the minor axis of the second suction cup (1713) is perpendicular to the axis of the third cylinder (3). The major axis of the second suction cup (1713) is longer than that of the first suction cup (1711), and the minor axis of the second suction cup (1713) is longer than that of the first suction cup (1711).

4. The shock absorber third cylinder solenoid valve seat press-fitting device according to claim 1, characterized in that, The press assembly (1) further includes a guide sleeve (18), a guide rod (19), and a movable plate (120). The guide sleeve (18) is fixed to the fixed plate (12), the guide rod (19) is slidably inserted into the guide sleeve (18), the movable plate (120) is fixed to the lower end of the guide rod (19), and the press head (14) is fixed to the movable plate (120).

5. The shock absorber third cylinder solenoid valve seat press-fitting device according to claim 4, characterized in that, The press assembly (1) further includes a housing (15) and a pressure sensor (16). The housing (15) is fixed to the upper side of the moving plate (120), and the pressure sensor (16) is located inside the housing (15). The pressure sensor (16) is fixed to the moving plate (120), and the press head (14) is electrically connected to the pressure sensor (16).

6. The shock absorber third cylinder solenoid valve seat press-fitting device according to claim 1, characterized in that, The second pressure bar (24) has a transition surface (241) and an abutment surface (242). The distance between the transition surface (241) and the central axis of the second pressure bar (24) is less than the distance between the abutment surface (242) and the central axis of the second pressure bar (24). In the vertical direction, the projection of the first pressure bar (23) overlaps with the projection of the contact surface (242).

7. A method for press-fitting the solenoid valve seat of the third cylinder of a shock absorber, characterized in that, The shock absorber third cylinder solenoid valve seat press-fitting device according to any one of claims 1-6 is used. Includes the following steps: S1, the second pressure rod (24) is detachably connected to the second mounting part (22), with the transition surface (241) and the abutment surface (242) facing upward; S2, the third cylinder (3) is sleeved on the outside of the first pressure rod (23), one end of the first pressure rod (23) is inserted into the first mounting part (21), the other end of the first pressure rod (23) first abuts against the transition surface (241), and then abuts against the abutting surface (242), and the mounting hole of the third cylinder (3) faces upward; S3, the solenoid valve seat is installed on the floating part (17), and the mounting hole is located on the vertical lower side of the solenoid valve seat; S4, the power component (13) drives the floating component (17) and the solenoid valve seat to move vertically downward until the solenoid valve seat is inserted into the mounting hole, the pressure sensor (16) detects the pressure to a predetermined value, and the power component (13) drives the floating component (17) to move vertically upward to its original position.

8. The method for press-fitting the solenoid valve seat of the third cylinder of the shock absorber according to claim 7, characterized in that, The process also includes S5, removing the first pressure rod (23), the third cylinder (3), and the solenoid valve seat, separating the first pressure rod (23) and the third cylinder (3), taking out a new third cylinder (3) and the solenoid valve seat, and repeating steps S2 to S4.

9. The method for press-fitting the solenoid valve seat of the third cylinder of the shock absorber according to claim 7, characterized in that, In step S4, as the power component (13) drives the floating component (17) and the solenoid valve seat to move vertically downward, the solenoid valve seat is first positioned with the mounting hole, the power component (13) stops moving, and the solenoid valve seat is inserted into the mounting hole by inertia.

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