Shock absorber third cylinder solenoid seat press fitting device and method thereof

Abstract

The present application relates to a kind of shock absorber third cylinder solenoid valve seat press fitting device and method thereof, it is related to the precise assembly technical field of automobile key parts, for the installation hole in third cylinder is pressed into the solenoid valve seat, including press fitting component and positioning component, press fitting component has support, fixed plate, power piece, pressure head, fixed plate is fixed with support, power piece is located in the upside of support and is fixed with fixed plate, power piece can drive pressure head to move along vertical direction;Positioning component has first mounting piece, second mounting piece, first pressure rod, second pressure rod, first mounting piece is spaced apart from second mounting piece, first pressure rod one end is inserted with first mounting piece, and first pressure rod other end is in contact with second pressure rod;Third cylinder is sleeved in first pressure rod, and installation hole is located in the downside of solenoid valve seat vertical direction.The structure effectively improves the assembly precision of solenoid valve seat, realizes the accurate positioning of solenoid valve seat assembly, overcomes the technical problem of insufficient assembly precision caused by positioning deflection in prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of precise assembly of automobile key parts, and particularly to a shock absorber third cylinder electromagnetic valve seat press-fitting device and method. BACKGROUND

[0002] In the field of automobile shock absorption systems, electronically controlled shock absorbers have become an important part of modern automobile chassis technology because they can adjust the damping force in real time according to the driving conditions. The third cylinder of the current automobile electronically controlled shock absorber needs to be assembled with an interference fit with the electromagnetic valve seat. The existing press-fitting technology mostly follows the assembly ideas of traditional hydraulic shock absorbers, and there is a core problem of insufficient assembly precision due to positioning deviation. In the traditional technology, on the one hand, the chamfer between the valve seat and the mounting hole is prone to unevenness due to machining errors during press-fitting. The existing pressure distribution of the press head is fixed and cannot adapt to the chamfer differences, which easily causes positioning deviation. On the other hand, the parts are prone to shaking along the third cylinder axis, and the commonly used adsorption or positioning structure cannot stably constrain the parts, further exacerbating the positioning deviation. As a result of the above two factors, the interference fit precision of the electromagnetic valve seat and the mounting hole is not up to standard, which leads to unstable installation of the electromagnetic valve seat, and the probability of the electromagnetic valve seat falling during subsequent use increases dramatically, directly affecting the installation quality of the subsequent electromagnetic valve. SUMMARY

[0003] The technical problem to be solved by the present application is to overcome the defect of insufficient assembly precision caused by positioning deviation in the prior art, thereby providing a shock absorber third cylinder electromagnetic valve seat press-fitting device.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0005] A shock absorber third cylinder electromagnetic valve seat press-fitting device, comprising: a press-fitting assembly, comprising a bracket, a fixed plate, a power element, and a press head, the fixed plate is fixed with the bracket, the power element is located on the upper side of the bracket and is fixed with the fixed plate, the press head is located on the lower side of the fixed plate, the power element can drive the press head to move in the vertical direction, and the electromagnetic valve seat is arranged on the press head; since the fixed plate is fixed with the bracket, the power element is located on the upper side of the bracket and is fixed with the fixed plate, the press head is located on the lower side of the fixed plate, and the power element can drive the press head to move in the vertical direction, so that the movement trajectory of the press head in the shock absorber third cylinder electromagnetic valve seat press-fitting device is determined, and positioning in the horizontal direction of the electromagnetic valve seat is realized.

[0006] The positioning assembly comprises a first mounting piece, a second mounting piece, a first pressing rod, a second pressing rod, the first mounting piece is arranged at intervals with the second mounting piece, the second pressing rod is detachably connected with the first mounting piece and the second mounting piece, one end of the first pressing rod is inserted into the first mounting piece, 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 on the lower side of the electromagnetic valve seat in the vertical direction; since the other end of the first pressing rod abuts against the second pressing rod, and the third cylinder sleeve is arranged outside the first pressing rod, the third cylinder is fixed, thereby fixing the mounting hole, and the purpose of assembling the electromagnetic valve seat with high precision is achieved.

[0007] Preferably, the press assembly further comprises a floating piece arranged on one side of the pressing head close to the power piece, the floating piece comprises a positioning part and a main body, the lower end surface of the positioning part in the vertical direction is provided with suction cups arranged in a ring shape and a central hole located at the center, and the main body is provided with a plurality of through grooves; the electromagnetic valve seat is fixed to the floating piece by means of detachable connection through the suction cups and the central hole; since the lower end surface of the positioning part in the vertical direction is provided with suction cups arranged in a ring shape and a central hole located at the center, and the main body is provided with a plurality of through grooves, the electromagnetic valve seat is fixed to the floating piece by means of detachable connection through the suction cups and the central hole, so that the electromagnetic valve is fixed to the floating piece, thereby facilitating the downward movement of the pressing head and the electromagnetic valve seat connected with the mounting hole.

[0008] Preferably, the first suction cup is arranged in a plurality of and is arranged at intervals along the axis of the third cylinder, the first suction cup is in an elliptical shape, the short axis of the first suction cup is parallel to the axis of the third cylinder, and the long axis of the first suction cup is perpendicular to the axis of the third cylinder; the second suction cup is arranged in a plurality of and is arranged at intervals along the direction perpendicular to the axis of the third cylinder, the second suction cup is in an elliptical shape, the long axis of the second suction cup is parallel to the axis of the third cylinder, and the short axis of the second suction cup is perpendicular to the axis of the third cylinder; the long axis length of the second suction cup is greater than the long axis length of the first suction cup, and the short axis length of the second suction cup is greater than the short axis length of the first suction cup; since the first suction cup is in an elliptical shape, the short axis of the first suction cup is parallel to the axis of the third cylinder, and the long axis of the first suction cup is perpendicular to the axis of the third cylinder, the second suction cup is arranged in a plurality of and is arranged at intervals along the direction perpendicular to the axis of the third cylinder, the second suction cup is in an elliptical shape, the long axis of the second suction cup is parallel to the axis of the third cylinder, and the short axis of the second suction cup is perpendicular to the axis of the third cylinder, so that the first suction cup and the second suction cup absorb the lateral force generated when the pressing head presses the third cylinder downward, thereby improving the service life of the positioning assembly.

[0009] Preferably, the press-fitting assembly further comprises a guide sleeve, a guide rod and a moving plate, the guide sleeve is fixed with the fixed plate, the guide rod is slidingly inserted into the guide sleeve, the moving plate is fixed with the lower end of the guide rod, and the press head is fixed with the moving plate; since the guide sleeve is fixed with the fixed plate, the guide rod is slidingly inserted into the guide sleeve, the moving plate is fixed with the lower end of the guide rod, and the press head is fixed with the moving plate, the power generated by the power element of the shock absorber third cylinder electromagnetic valve seat press-fitting device is transmitted along the guide sleeve and the guide rod, thereby driving the press head on the fixed plate to reciprocate in the vertical direction.

[0010] Preferably, the press-fitting assembly further comprises a housing and a pressure sensor, the housing is fixed with the upper side of the moving plate, the pressure sensor is located in the housing, the pressure sensor is fixed with the moving plate, and the press head is electrically connected with the pressure sensor; since the housing is fixed with the upper side of the moving plate, the pressure sensor is located in the housing, the pressure sensor is fixed with the moving plate, and the press head is electrically connected with the pressure sensor, the force applied by the press head when pressing down to abut the electromagnetic valve seat against the mounting hole can be well controlled, thereby effectively protecting the electromagnetic valve seat.

[0011] Preferably, the second press rod has a transition surface and an abutting surface, the distance between the transition surface and the central axis of the second press rod is smaller than the distance between the abutting surface and the central axis of the second press rod; in the vertical direction, the projection of the first press rod overlaps with the projection of the abutting surface; since the second press rod has a transition surface and an abutting surface, the distance between the transition surface and the central axis of the second press rod is smaller than the distance between the abutting surface and the central axis of the second press rod; in the vertical direction, the projection of the first press rod overlaps with the projection of the abutting surface, so that when the first press rod is connected with the second press rod, the transition effect of the transition surface is used, thereby facilitating the positioning and installation of the first press rod and the second press rod.

[0012] The application discloses a third cylinder electromagnetic valve seat pressing device of a shock absorber, and belongs to the technical field of shock absorber manufacturing.

[0013] Preferably, the application further comprises S5, removing the first pressing rod, the third cylinder and the electromagnetic valve seat, and separating the first pressing rod and the third cylinder, taking out new third cylinder and electromagnetic valve seat, and repeating steps S2 to S4.

[0014] Preferably, in step S4, during the vertical downward movement of the floating element and the electromagnetic valve seat driven by the power element, the electromagnetic valve seat is first positioned with the mounting hole, the power element stops moving, and the electromagnetic valve seat is inserted into the mounting hole by inertia.

[0015] Compared with the prior art, the application has the following beneficial effects:

[0016] The shock absorber third cylinder electromagnetic valve seat press fitting device provided in the technical scheme has the advantages that the moving track of the shock absorber third cylinder electromagnetic valve seat press fitting device is limited by the support, the fixed plate, the guide sleeve, the guide rod and the moving plate in the press fitting assembly; the third cylinder is positioned by the positioning pin; the suction force of the electromagnetic valve seat during press fitting is controlled by the special suction cup, so that the horizontal press fitting is ensured; the power generated by the power element is transmitted to the press head by the lead screw; the assembly precision of the electromagnetic valve seat is effectively improved by the cooperation of the parameters of the press fitting stroke and the pressure maintaining process; the precise positioning of the electromagnetic valve seat assembly is realized; the technical problem that the assembly precision is insufficient and the electromagnetic valve seat falls off due to the positioning deflection in the prior art is overcome; the efficiency during installation is ensured by the second press rod step design; the service life of the second press rod is solved in the case of pressure eccentricity; and the sustainability of the press fitting precision is further ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the specific embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0018] Figure 1 The general assembly structure schematic diagram of the shock absorber third cylinder electromagnetic valve seat press fitting device provided by the present application is shown in the figure.

[0019] Figure 2 The detailed structure schematic diagram of the general assembly of the shock absorber third cylinder electromagnetic valve seat press fitting device provided by the present application is shown in the figure.

[0020] Figure 3 The rear side structure schematic diagram of the press fitting assembly provided by the present application is shown in the figure.

[0021] Figure 4 The structure schematic diagram of the positioning assembly provided by the present application is shown in the figure.

[0022] Figure 5 The structure schematic diagram of the second press rod provided by the present application is shown in the figure.

[0023] Figure 6 The structure schematic diagram of the floating element provided by the present application is shown in the figure.

[0024] Explanation of reference signs:

[0025] 1, press assembly; 11, support; 12, fixed plate; 13, power piece; 14, pressure head; 15, shell; 16, pressure sensor; 17, floating piece; 171, positioning part; 1711, first suction cup; 1712, center hole; 1713, second suction cup; 172, main body; 1721, through slot; 18, guide sleeve; 19, guide rod; 120, moving plate; 2, positioning assembly; 21, first mounting piece; 22, second mounting piece; 23, first pressing rod; 24, second pressing rod; 241, transition surface; 242, abutting surface; 3, third cylinder. DETAILED DESCRIPTION

[0026] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] Please refer to Figures 1 to 6 The embodiment of the present application provides a shock absorber third cylinder solenoid valve seat press fitting device, which comprises a press fitting assembly 1 and a positioning assembly 2.

[0030] The pressing assembly 1 comprises a bracket 11, a fixed plate 12, a power element 13, a pressing head 14, the fixed plate 12 is fixed with the bracket 11, the power element 13 is located on the upper side of the bracket 11 and is fixed with the fixed plate 12, the pressing head 14 is located on the lower side of the fixed plate 12, the power element 13 drives the pressing head 14 to move in the vertical direction by means of a lead screw, and the pressing head 14 is provided with an electromagnetic valve seat; since the fixed plate 12 is fixed with the bracket 11 by means of bolts, the power element 13 is located on the upper side of the bracket 11 and is fixed with the fixed plate 12, and the pressing head 14 is located on the lower side of the fixed plate 12, the power element 13 can drive the pressing head 14 to move in the vertical direction, so that the reciprocating track of the pressing head 14 in the vertical direction in the shock absorber third cylinder electromagnetic valve seat pressing device is determined, and positioning of the electromagnetic valve seat in the horizontal direction is realized.

[0031] The positioning assembly 2 comprises a first mounting element 21, a second mounting element 22, a first pressing rod 23 and a second pressing rod 24, the first mounting element 21 is arranged in a spaced manner with the second mounting element 22, the second pressing rod 24 is detachably connected with the first mounting element 21 and the second mounting element 22, one end of the first pressing rod 23 is inserted into the first mounting element 21, and the other end of the first pressing rod 23 abuts against the second pressing rod 24; the third cylinder 3 is sleeved outside the first pressing rod 23, and the mounting hole is located on the lower side in the vertical direction of the electromagnetic valve seat; since the other end of the first pressing rod 23 abuts against the second pressing rod 24, and the third cylinder 3 is sleeved outside the first pressing rod 23, the third cylinder 3 is fixed by means of a positioning pin, thereby fixing the mounting hole, and the purpose of high-precision assembly of the electromagnetic valve seat is achieved.

[0032] The pressing assembly 1 further comprises a floating element 17, the floating element 17 is arranged on one side of the pressing head 14 close to the power element 13, the floating element 17 comprises a positioning part 171 and a main body 172, a lower end surface of the positioning part 171 in the vertical direction is provided with a first suction disc 1711 and a second suction disc 1713 arranged in a ring shape, and a center hole 1712 is arranged at the center position, the main body 172 is provided with a plurality of through grooves 1721, and the electromagnetic valve seat is detachably connected with the floating element 17 through the first suction disc 1711 and the second suction disc 1713; since the lower end surface of the positioning part 171 in the vertical direction is provided with the first suction disc 1711 and the second suction disc 1713 arranged in a ring shape, and the center hole 1712 is arranged at the center position, the main body 172 is provided with a plurality of through grooves 1721, and the electromagnetic valve seat is detachably connected with the floating element 17 through the first suction disc 1711 and the second suction disc 1713, so that the electromagnetic valve is fixed with the floating element 17 through the first suction disc 1711 and the second suction disc 1713, thereby facilitating downward movement of the pressing head 14 and the electromagnetic valve seat during downward pressing of the pressing head 14, and connection with the mounting hole is completed.

[0033] The first suction disc 1711 is arranged in two and is arranged along the axis of the third cylinder 3, the first suction disc 1711 is oval, the short axis of the first suction disc 1711 is parallel to the axis of the third cylinder 3, and the long axis of the first suction disc 1711 is perpendicular to the axis of the third cylinder 3; the second suction disc 1713 is arranged in two and is arranged along the direction perpendicular to the axis of the third cylinder 3, the second suction disc 1713 is oval, the long axis of the second suction disc 1713 is parallel to the axis of the third cylinder 3, and the short axis of the second suction disc 1713 is perpendicular to the axis of the third cylinder 3; the long axis of the second suction disc 1713 is longer than the long axis of the first suction disc 1711, and the short axis of the second suction disc 1713 is longer than the short axis of the first suction disc 1711; because the first suction disc 1711 is oval, the short axis of the first suction disc 1711 is parallel to the axis of the third cylinder 3, and the long axis of the first suction disc 1711 is perpendicular to the axis of the third cylinder 3; the second suction disc 1713 is arranged along the direction perpendicular to the axis of the third cylinder 3, the second suction disc 1713 is oval, the long axis of the second suction disc 1713 is parallel to the axis of the third cylinder 3, and the short axis of the second suction disc 1713 is perpendicular to the axis of the third cylinder 3, so that the first suction disc 1711 and the second suction disc 1713 absorb the lateral force generated when the pressure head 14 presses the third cylinder 3, thereby prolonging the service life of the positioning assembly 2.

[0034] The pressing assembly 1 further comprises a guide sleeve 18, a guide rod 19 and a moving plate 120, the guide sleeve 18 is fixed with the fixed plate 12, the guide rod 19 is slidingly inserted into the guide sleeve 18, and the moving plate 120 is fixed with the lower end of the guide rod 19, and the pressure head 14 is fixed with the moving plate 120; because the guide sleeve 18 is fixed with the fixed plate 12, the guide rod 19 is slidingly inserted into the guide sleeve 18, the moving plate 120 is fixed with the lower end of the guide rod 19, and the pressure head 14 is fixed with the moving plate 120, so that the power generated by the power piece 13 of the shock absorber third cylinder electromagnetic valve seat pressing device is transmitted along the guide sleeve 18 and the guide rod 19, thereby driving the pressure head 14 on the fixed plate 12 to move reciprocatingly in the vertical direction.

[0035] The pressing assembly 1 further comprises a housing 15 and a pressure sensor 16, the housing 15 is fixed with the upper side of the moving plate 120, the pressure sensor 16 is located in the housing 15, the pressure sensor 16 is fixed with the moving plate 120, and the pressure head 14 is electrically connected with the pressure sensor 16; because the housing 15 is fixed with the upper side of the moving plate 120, the pressure sensor 16 is located in the housing 15, the pressure sensor 16 is fixed with the moving plate 120, and the pressure head 14 is electrically connected with the pressure sensor 16, so that the force applied by the pressure head 14 when pressing the electromagnetic valve seat to abut against the mounting hole can be controlled, thereby effectively protecting the electromagnetic valve seat.

[0036] The second pressing rod 24 has a transition surface 241 and an abutting surface 242, the distance between the transition surface 241 and the central axis of the second pressing rod 24 is smaller than the distance between the abutting surface 242 and the central axis of the second pressing rod 24; in the vertical direction, the projection of the first pressing rod 23 overlaps the projection of the abutting surface 242; due to the transition surface 241 and the abutting surface 242 of the second pressing rod 24, the distance between the transition surface 241 and the central axis of the second pressing rod 24 is smaller than the distance between the abutting surface 242 and the central axis of the second pressing rod 24; in the vertical direction, the projection of the first pressing rod 23 overlaps the projection of the abutting surface 242, so that when the first pressing rod 23 and the second pressing rod 24 are connected, the transition effect of the transition surface 241 is passed, and then the positioning and installation of the first pressing rod 23 and the second pressing rod 24 are facilitated.

[0037] A third cylinder electromagnetic valve seat press fitting method of a shock absorber, comprising the following steps: S1, detachably connecting the second pressing rod 24 with the second mounting member 22, and the transition surface 241 and the abutting surface 242 face upward; S2, sleeving the third cylinder 3 outside the first pressing rod 23, inserting the first pressing rod 23 at one end with the first mounting member 21, and then abutting the transition surface 241 at the other end of the first pressing rod 23, and then abutting the abutting surface 242, and the mounting hole of the third cylinder 3 faces upward; S3, installing the electromagnetic valve seat on the floating member 17, and the mounting hole is located on the vertical lower side of the electromagnetic valve seat; S4, driving the floating member 17 and the electromagnetic valve seat to move downward along the vertical direction by the power member 13 until the electromagnetic valve seat is inserted into the mounting hole, the pressure sensor 16 detects the pressure to a predetermined value, and the floating member 17 is driven to move upward along the vertical direction by 20 cm to the original position by the power member 13; S5, removing the first pressing rod 23, the third cylinder 3 and the electromagnetic valve seat, and separating the first pressing rod 23 and the third cylinder 3, taking out the new third cylinder 3 and the electromagnetic valve seat, and repeating steps S2 to S4; in step S4, during the process of driving the floating member 17 and the electromagnetic valve seat to move downward along the vertical direction by the power member 13, the electromagnetic valve seat is first positioned with the mounting hole, the power member 13 stops moving, and the electromagnetic valve seat is inserted into the mounting hole by inertia; due to the process of driving the floating member 17 and the electromagnetic valve seat to move downward along the vertical direction by the power member 13, the electromagnetic valve seat is first positioned with the mounting hole, the power member 13 stops moving, and the electromagnetic valve seat is inserted into the mounting hole by inertia, so that the electromagnetic valve seat can be inserted into the mounting hole with an installation progress of ±0.1 mm, and then the probability of the electromagnetic valve seat falling in the subsequent use process is greatly reduced.

[0038] The above-mentioned embodiments are only preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application. Any non-essential changes and replacements made by those skilled in the art on the basis of the present application shall fall within the scope of protection of the present application.

Claims

1. A shock absorber third cylinder solenoid valve seat press-fitting device for press-fitting a solenoid valve seat into a mounting hole of a third cylinder (3), characterized by, The utility model relates to a pressure assembly (1) and positioning assembly (2) and third cylinder (3) and electromagnetic valve seat, it includes: Pressure assembly (1) includes support (11), fixed plate (12), power part (13), pressure head (14), the fixed plate (12) is fixed with the support (11), the power part (13) is located the upside of the support (11) and is fixed with the fixed plate (12), the pressure head (14) is located the downside of the fixed plate (12), the power part (13) can drive the pressure head (14) moves along vertical direction, the pressure head (14) is provided with the electromagnetic valve seat on it; Positioning assembly (2) includes first mounting (21), second mounting (22), first pressure rod (23), second pressure rod (24), the first mounting (21) is spaced apart with the second mounting (22), the second pressure rod (24) is detachably connected with the first mounting (21), second mounting (22), one end of the first pressure rod (23) is inserted with the first mounting (21), the other end of the first pressure rod (23) is abutted with the second pressure rod (24);The third cylinder (3) is set on the outside of the first pressure rod (23), and the mounting hole is located the downside of the vertical direction of the electromagnetic valve seat.

2. The shock absorber third cylinder solenoid valve press fitting device according to claim 1, characterized by, The pressure assembly (1) further includes a floating element (17), the floating element (17) is arranged on one side of the pressure head (14) close to the power part (13), the floating element (17) includes a positioning portion (171) and a main body (172), a first suction disc (1711), a second suction disc (1713) and a central hole (1712) at the center position are arranged on the lower end surface of the positioning portion (171) in the vertical direction, the main body (172) is provided with a plurality of through grooves (1721), and the electromagnetic valve seat and the floating element (17) are detachably connected through the first suction disc (1711) and the second suction disc (1713).

3. The shock absorber third cylinder solenoid valve press fitting device according to claim 2, characterized by, The first suction disc (1711) is arranged in multiple and is spaced apart along the axis of the third cylinder (3), the first suction disc (1711) is oval, the short axis of the first suction disc (1711) is parallel to the axis of the third cylinder (3), and the long axis of the first suction disc (1711) is perpendicular to the axis of the third cylinder (3). The second suction disc (1713) is arranged in multiple and is spaced apart along the direction perpendicular to the axis of the third cylinder (3), the second suction disc (1713) is oval, the long axis of the second suction disc (1713) is parallel to the axis of the third cylinder (3), and the short axis of the second suction disc (1713) is perpendicular to the axis of the third cylinder (3). The long axis length of the second suction disc (1713) is greater than the long axis length of the first suction disc (1711), and the short axis length of the second suction disc (1713) is greater than the short axis length of the first suction disc (1711).

4. The shock absorber third cylinder solenoid valve press fitting device according to claim 1, characterized by The press-fit assembly (1) further comprises a guide sleeve (18), a guide rod (19) and a moving plate (120), the guide sleeve (18) is fixed with the fixed plate (12), the guide rod (19) is slidingly inserted into the guide sleeve (18), and the moving plate (120) is fixed with the lower end of the guide rod (19), and the press head (14) is fixed with the moving plate (120).

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

6. The shock absorber third cylinder solenoid valve press fitting device according to claim 1, characterized by The second pressing rod (24) has a transition surface (241) and an abutting surface (242), the distance between the transition surface (241) and the central axis of the second pressing rod (24) is less than the distance between the abutting surface (242) and the central axis of the second pressing rod (24); In the vertical direction, the projection of the first pressing rod (23) overlaps the projection of the abutting surface (242).

7. A shock absorber third cylinder solenoid seat press fitting method, characterized by, The shock absorber third cylinder electromagnetic valve seat press-fit device of any one of claims 1-6, Comprising the following steps: S1, detachably connecting the second pressing rod (24) with the second mounting member (22), and the transition surface (241) and the abutting surface (242) face upward; S2, sleeving the third cylinder (3) outside the first pressing rod (23), one end of the first pressing rod (23) is inserted into the first mounting member (21), the other end of the first pressing 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, mounting the electromagnetic valve seat on the floating member (17), and the mounting hole is located at the vertical lower side of the electromagnetic valve seat; S4, the power member (13) drives the floating member (17) and the electromagnetic valve seat to move vertically downward until the electromagnetic valve seat is inserted into the mounting hole, the pressure sensor (16) detects the pressure to a predetermined value, and the power member (13) drives the floating member (17) to move vertically upward to the original position.

8. The shock absorber third cylinder solenoid valve press fitting method according to claim 7, characterized by, Further comprising S5, removing the first pressing rod (23), the third cylinder (3) and the electromagnetic valve seat, and separating the first pressing rod (23) and the third cylinder (3), taking out a new third cylinder (3) and electromagnetic valve seat, and repeating steps S2 to S4.

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

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