Vacuum dry filling and pressing device and process for hydraulic suspension of automobile engine

Abstract

The application discloses a kind of vacuum dry filling press equipment and process of automobile engine hydraulic suspension, including machine table, the upper side of machine table is equipped with vacuum lower shell, the inside of vacuum lower shell is provided with the suspension positioning seat that can be up and down, suspension positioning seat and the clamping assembly for clamping and fixing suspension, the upper of machine table is provided with riveting fixed seat connected with equipment punch head, the lower side of riveting fixed seat is equipped with riveting mould group matched with suspension, the outside of riveting fixed seat is provided with the vacuum upper shell that can be up and down, the lower side of machine table is equipped with setting down pull seat, the upper side of down pull seat is connected with the multiple claw clamping mechanism for clamping the lower end of suspension between suspension positioning seat, equipment punch head is lowered when vacuum lower shell and vacuum upper shell butt joint and form airtight space for vacuumizing inside.The present application can solve the problem that existing automobile engine hydraulic suspension is easily leaked at the vacuumizing opening used.

Description

Technical Field

[0001] This invention relates to the field of automotive engine hydraulic suspension component manufacturing technology, specifically a vacuum dry filling and pressing device for automotive engine hydraulic suspension components. Background Technology

[0002] Hydraulic mounts for automotive engines are components that connect the powertrain and the vehicle body. Existing hydraulic mounts typically contain ethylene glycol. Ethylene glycol solutions have excellent fluidity and incompressibility, allowing them to transmit pressure within the mount's cavity. When the engine vibrates, this pressure transmission enables the mount system to effectively buffer and dampen vibrations, converting vibration energy into pressure and heat energy, thus reducing the transmission of vibration to the vehicle body. The presence of air in the hydraulic mount will affect its performance. Air is compressible; its presence during mount operation increases the compressibility of the fluid, making the mount's stiffness and damping characteristics unstable and reducing its damping effect. Vacuuming effectively removes air from the ethylene glycol solution and the mount itself, ensuring a uniform concentration of ethylene glycol within the mount, allowing it to stably perform its damping function under various operating conditions. Vacuuming creates negative pressure within the mount, making it easier for the ethylene glycol solution to fill all parts of the mount, including narrow channels and tiny gaps. Therefore, the current process requires that the hydraulic suspension components of the car engine be riveted and injected with ethylene glycol before vacuuming is performed through the vacuum opening on the side wall. This structure is prone to leakage at the vacuum opening, which affects the stability of the product during use. Summary of the Invention

[0003] This invention provides a vacuum dry filling and pressing device and process for automotive engine hydraulic suspension components, which can solve the problem of easy leakage at the vacuum opening of existing automotive engine hydraulic suspension components during use.

[0004] To achieve the above objectives, in a first aspect, the present invention provides the following technical solution: a vacuum dry-filling press-fit device for hydraulic suspension components of an automobile engine, comprising a machine base, a vacuum lower shell mounted on the upper side of the machine base, a suspension component positioning seat that can move up and down inside the vacuum lower shell, the suspension component positioning seat and a clamping assembly for clamping and fixing the suspension component, a riveting fixing seat connected to a stamping head of the equipment mounted above the machine base, a riveting module matching the suspension component mounted on the lower side of the riveting fixing seat, a vacuum upper shell that can move up and down outside the riveting fixing seat, and a pull-down seat mounted on the lower side of the machine base, the upper side of the pull-down seat being connected to the suspension component positioning seat. The machine is equipped with a multi-jaw clamping mechanism for holding the lower end of the suspension component. A pull-down drive component is installed on the lower side of the machine base to drive the pull-down seat to move up and down. When the stamping head of the equipment moves down, the vacuum lower shell and the vacuum upper shell dock together to form a sealed space inside. This sealed space is connected to a vacuum pump. By setting up the vacuum lower shell and the vacuum upper shell, the ethylene glycol inside the suspension component can be evacuated during riveting, eliminating the need to set a vacuum opening on the outside of the suspension component, thus ensuring the sealing and vibration damping effect of the suspension component. At the same time, the pull-down seat can stretch the side wall of the suspension component during ethylene glycol injection, expanding the inner cavity of the ethylene glycol, so that the ethylene glycol can be better injected into various positions inside the suspension component, improving the vibration damping effect of the suspension component.

[0005] Preferably, the clamping assembly includes a symmetrically arranged semi-circular lower clamping block and a semi-circular upper clamping block disposed on the upper side of the semi-circular lower clamping block. A limiting groove matching the protruding rib on the outer side of the suspension member is formed between the semi-circular lower clamping block and the semi-circular upper clamping block. The semi-circular lower clamping block is driven by a corresponding clamping drive to clamp the suspension member. The semi-circular lower clamping block and the semi-circular upper clamping block can cooperate with the protruding rib on the outer side of the suspension member to ensure that the suspension member will not be displaced when riveted and stretched at the lower end.

[0006] Preferably, a base platform is installed on the upper side of the machine tool, the vacuum lower shell and the clamping assembly are both located on the upper side of the base platform, and the suspension positioning seat is located in the through hole in the middle of the base platform. The base platform can guide the lifting and lowering of the suspension positioning seat.

[0007] And / or, the upper end of the base platform is provided with guide rails on both sides of the through hole, the semi-circular lower clamping block cooperates with the guide rail and moves along the guide rail, the guide rail can guide the translation of the semi-circular lower clamping block to ensure the accuracy of clamping;

[0008] And / or, a sealing element is provided between the upper vacuum shell and the lower vacuum shell to ensure the airtightness of the sealed space.

[0009] Preferably, the clamping drive is a clamping cylinder located on both sides of the vacuum lower shell. Its extension rod passes laterally through the vacuum lower shell and is connected to the semi-circular lower clamping block. A sealing bushing that cooperates with the vacuum lower shell is sleeved on the outer side of the extension rod. The clamping drive can realize the synchronous movement of the semi-circular lower clamping block, making the space inside the vacuum lower shell more compact.

[0010] Preferably, the multi-jaw clamping mechanism includes a base, a central hole in the middle of the base, and jaws that move radially around the central hole. A liftable jaw drive block is installed inside the upper side of the pull-down base. The upper end of the jaw drive block is provided with a slope or conical surface that matches the lower end of the jaw. When the jaw drive block moves upward, it causes the jaws to move radially toward the central hole to clamp the lower end of the suspension component. A jaw drive cylinder connected to the jaw drive block is provided below the pull-down base. The jaws can be firmly clamped by the lifting and lowering of the jaw drive block, which is convenient and quick. After clamping, the jaws can also move downward with the pull-down base.

[0011] Preferably, the pull-down drive component is a cylinder and there are two cylinders arranged on both sides of the pull-down seat. A connecting plate is provided between their extended ends. The gripper drive cylinder is installed on the connecting plate, which can combine the two pull-down drive components and the gripper drive cylinder together to realize the synchronous movement of the pull-down seat and the gripper drive cylinder.

[0012] Preferably, the riveting module includes a floating seat embedded in the groove at the lower end of the riveting fixing seat and a riveting die head installed at the lower end of the floating seat. A floating spring is provided between the upper side of the floating seat and the bottom of the groove. The floating spring allows the riveting die head to move upward when it contacts the product, ensuring that the product is not damaged during riveting. Alternatively, a guide sleeve is provided at the lower end of the riveting fixing seat outside the riveting die head. A positioning pressure plate matching the suspended part is provided at the lower end of the guide sleeve. During riveting, the positioning pressure plate can press and guide the upper end of the suspended part to improve the riveting effect of the riveting die head.

[0013] Preferably, a limiting guide rod connected to the stamping head of the equipment is provided along the outer side of the vacuum upper shell along the axial direction. A push spring is sleeved on the limiting guide rod. The limiting guide rod can limit the movement of the vacuum upper shell. When the vacuum upper shell contacts the vacuum lower shell, the vacuum upper shell can move upward. The push spring applies downward pressure to the vacuum upper shell to ensure that the vacuum upper shell and the vacuum lower shell will not loosen during riveting.

[0014] Preferably, the side wall of the vacuum lower shell is provided with a vacuum suction hole to facilitate matching with vacuum equipment.

[0015] And / or, a photoelectric detector for aligning the suspension component is provided on the side wall of the vacuum lower shell, which can detect whether the suspension component is installed in place and prevent the equipment from starting erroneously.

[0016] And / or, a pressure detection device is installed on the side wall of the vacuum shell to monitor and display the pressure in the sealed space.

[0017] In a second aspect, the present invention also provides a process for a vacuum dry-filling press-fit device for a hydraulic suspension component of an automobile engine according to the first aspect, comprising the following steps:

[0018] S1. Install the pull rod at the lower opening of the suspension component, place the suspension component on the suspension component positioning seat for positioning, and extend the pull rod into the pull-down seat;

[0019] S2. The clamping assembly clamps and fixes the suspension component, the multi-jaw clamping mechanism clamps the pull rod, and the pull-down seat moves down synchronously to stretch and expand the inner cavity of the suspension component. Then, ethylene glycol aqueous solution is poured into the open position on the upper side of the suspension component through external equipment, and the matching bottom cover is placed on the open position on the upper side of the suspension component.

[0020] S3. The equipment's stamping head presses down, and the lower vacuum shell and upper vacuum shell first connect and seal. The sealed space between the lower vacuum shell and upper vacuum shell is then evacuated to a certain value.

[0021] S4. The equipment's stamping head continues to press down, and the bottom cover and the suspension part are riveted and fixed by the riveting module. The multi-jaw clamping mechanism releases the pull rod, and the pull-down seat pushes the suspension part out through the suspension part positioning seat, completing the dry filling and pressing process.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] By setting up a vacuum lower shell and a vacuum upper shell, the ethylene glycol inside the suspension can be evacuated during riveting, eliminating the need to set a vacuum opening on the outside of the suspension, thus ensuring the sealing and vibration damping effect of the suspension. This can solve the problem of easy leakage at the vacuum opening of existing automotive engine hydraulic suspension components.

[0024] Meanwhile, the pull-down bracket can stretch the side wall of the suspension component during ethylene glycol injection, expanding the inner cavity of the ethylene glycol, allowing the ethylene glycol to be injected into various positions inside the suspension component more effectively, thereby improving the vibration damping effect of the suspension component. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a front sectional view of the present invention;

[0027] Figure 3for Figure 2 Enlarged structural diagram at point B;

[0028] Figure 4 This is a cross-sectional view of the pull-down seat and multi-jaw clamping mechanism of the present invention;

[0029] Figure 5 This is a cross-sectional view of the vacuum lower shell of the present invention;

[0030] Figure 6 This is a schematic diagram of the riveting process of the present invention.

[0031] Figure label:

[0032] 1. Machine base; 11. Floating seat; 12. Floating spring; 13. Guide sleeve; 14. Positioning pressure plate; 15. Pull-down seat; 16. Connecting plate; 17. Suspension positioning seat; 18. Sealing bushing; 19. Extending rod; 2. Clamping drive component; 20. Vacuum suction hole; 21. Photoelectric detector; 22. Coupling; 24. Multi-jaw clamping mechanism; 25. Jaw; 26. Lifting column; 27. Jaw drive block; 28. Base 29. Riveting fixing seat; 3. Vacuum upper shell; 30. Sealing component; 31. Push-down spring; 32. Air pressure detection device; 4. Equipment stamping head; 5. Limiting guide rod; 6. Clamping assembly; 61. Semi-circular upper clamping block; 62. Semi-circular lower clamping block; 63. Guide rail; 64. Limiting groove; 7. Vacuum lower shell; 8. Pull-down drive component; 9. Gripper drive cylinder; 10. Riveting die head; A. Suspension component; C. Pull rod. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0034] like Figure 1-6As shown, this invention provides a solution to the problem of easy leakage at the vacuum opening of existing automotive engine hydraulic suspension components. The invention provides the following technical solution: a vacuum dry-filling press-fit device for automotive engine hydraulic suspension components, comprising a machine base 1, a vacuum lower shell 7 mounted on the upper side of the machine base 1, a suspension component positioning seat 17 movable up and down inside the vacuum lower shell 7, a clamping assembly 6 for clamping and fixing the suspension component A, a riveting fixing seat 29 connected to a stamping head 4 is mounted above the machine base 1, a riveting module matching the suspension component A is mounted on the lower side of the riveting fixing seat 29, a vacuum upper shell 3 movable up and down is mounted on the outer side of the riveting fixing seat 29, and a pull-down seat 15 is mounted on the lower side of the machine base 1. A multi-jaw clamping mechanism 24 for clamping the lower end of suspension A is connected between the upper side of seat 15 and suspension positioning seat 17. A pull-down drive component 8 for driving pull-down seat 15 to move up and down is installed on the lower side of the machine base 1. When the equipment stamping head 4 moves down, the vacuum lower shell 7 docks with the vacuum upper shell 3 and forms a sealed space inside. The sealed space is connected to a vacuum pump. By setting the vacuum lower shell 7 and vacuum upper shell 3, the ethylene glycol inside suspension A can be vacuumed during riveting, eliminating the need to set a vacuum opening on the outside of suspension A, ensuring the sealing and vibration reduction effect of suspension. At the same time, the pull-down seat 15 can stretch the side wall of suspension A when filling ethylene glycol, expanding the inner cavity of ethylene glycol, so that ethylene glycol can be better filled into various positions inside suspension A, improving the vibration reduction effect of suspension A.

[0035] Specifically, in this embodiment, the machine base 1 can be a conventional press machine base, and the equipment punch head 4 can also be an existing conventional press punch head. A vacuum pump and an ethylene glycol filling device can also be installed on the equipment. The vacuum pump can be a vacuum pump and a corresponding connecting pipeline. The connecting pipeline can be connected to the vacuum lower shell 7 or the vacuum upper shell 3. The ethylene glycol filling device can use a telescopic filling tube to fill ethylene glycol. During filling, it extends and aligns with the upper end of the suspension A. After completion, the filling tube retracts. Filling can also be done manually. The choice can be made as needed. The vacuum lower shell 7 is provided with a vacuum suction hole 20 on its side wall to facilitate matching with the vacuum pump.

[0036] Before the process begins, a pull rod C can be installed at the lower end of suspension A. One end of pull rod C is threaded and connected to the lower end of suspension A. The multi-jaw clamping mechanism 24 can clamp pull rod C and pull the lower half of suspension A downward. The main body of suspension A is made of rubber material, so when pull rod C is pulled down, the side wall of the lower half of suspension A can be stretched, expanding the inner cavity. Then, ethylene glycol is injected, allowing for the injection of more ethylene glycol. After riveting, suspension A returns to its original shape, allowing ethylene glycol to fill all corners of suspension A, thus achieving better support when suspension A is in use.

[0037] In this embodiment, as Figure 2-3 As shown, the clamping assembly 6 includes a symmetrically arranged semi-circular lower clamping block 62 and a semi-circular upper clamping block 61 arranged on the upper side of the semi-circular lower clamping block 62. A limiting groove 64 matching the rib on the outer side of the suspension A is formed between the semi-circular lower clamping block 62 and the semi-circular upper clamping block 61. The semi-circular lower clamping block 62 is driven by the corresponding clamping drive 2 to clamp the suspension A. The semi-circular lower clamping block 62 and the semi-circular upper clamping block 61 can cooperate with the rib on the outer side of the suspension A to ensure that the suspension A will not be displaced when riveted and stretched at the lower end. The semi-circular upper clamping block 61 and the semi-circular lower clamping block 62 are connected by screws. The size matches the suspension A. When the limiting groove 64 is engaged with the rib on the outer side of the suspension A, it can vertically limit the suspension A as a whole.

[0038] In this embodiment, as Figure 1-3 As shown, a base platform 28 is installed on the upper side of the machine platform 1. The vacuum lower shell 7 and the clamping assembly 6 are both located on the upper side of the base platform 28. The suspension positioning seat 17 is located in the through hole in the middle of the base platform 28. The base platform 28 can guide the lifting and lowering of the suspension positioning seat 17.

[0039] Meanwhile, guide rails 63 can also be provided on both sides of the through hole at the upper end of the base platform 28. The semi-circular lower clamping block 62 cooperates with the guide rail 63 and moves along the guide rail 63. The guide rail 63 can guide the movement of the semi-circular lower clamping block 62 to ensure the accuracy of clamping. The length of the guide rail 63 can be adjusted as needed, and it can be connected to the base platform 28 by screws.

[0040] And / or, a sealing element 30 is provided between the upper vacuum shell 3 and the lower vacuum shell 7 to ensure the airtightness of the sealed space. The sealing element 30 can be a rubber sealing ring, which can be embedded in the upper edge of the lower vacuum shell 7. When the upper vacuum shell 3 is pressed down, it can contact the sealing element 30 on the lower vacuum shell 7. Under the action of the gravity of the upper vacuum shell 3, the airtightness between the upper vacuum shell 3 and the lower vacuum shell 7 can be ensured.

[0041] In this embodiment, the clamping drive 2 is a clamping cylinder disposed on both sides of the vacuum lower shell 7. Its extension rod 19 passes laterally through the vacuum lower shell 7 and is connected to the semi-circular lower clamping block 62. The outer side of the extension rod 19 is fitted with a sealing bushing 18 that cooperates with the vacuum lower shell 7. The clamping drive 2 can realize the synchronous movement of the semi-circular lower clamping block 62, making the space inside the vacuum lower shell 7 more compact.

[0042] In this embodiment, as Figure 4-5 As shown, the multi-jaw clamping mechanism 24 includes a base, a central hole in the middle of the base, and a jaw 25 that moves radially around the central hole. A liftable jaw drive block 27 is installed inside the upper side of the pull-down base 15. The upper end of the jaw drive block 27 is provided with a slope or conical surface that matches the lower end of the jaw 25. When the jaw drive block 27 moves upward, it causes the jaw 25 to move radially toward the central hole to clamp the lower end of the suspension A. A jaw drive cylinder 9 connected to the jaw drive block 27 is provided below the pull-down base 15. The jaw 25 can be firmly clamped by the lifting and lowering of the jaw drive block 27, which is convenient and quick. After clamping, it can also move downward with the pull-down base 15. Three jaws 25 can be provided. A slope can also be provided on the outer side of the lower end of the jaw 25, which matches the slope or conical surface on the jaw drive block 27.

[0043] Specifically, a lifting column 26 is installed inside the lower part of the pull-down seat 15. The lower end of the lifting column 26 is connected to the extension rod of the gripper drive cylinder 9 through a coupling 22. There is no fixed connection between the lifting column 26 and the gripper drive block 27. When the lifting column 26 is pushed up, it can push the gripper drive block 27 up. When the lifting column 26 is moved down, the gripper drive block 27 can move down automatically under the action of gravity.

[0044] In this embodiment, as Figure 2 As shown, the pull-down drive component 8 is a cylinder and is arranged in two on both sides of the pull-down seat 15. A connecting plate 16 is provided between its extended ends. The gripper drive cylinder 9 is installed on the connecting plate 16, which can combine the two pull-down drive components 8 and the gripper drive cylinder 9 together to realize the synchronous movement of the pull-down seat 15 and the gripper drive cylinder 9.

[0045] In this embodiment, as Figure 2As shown, the riveting module includes a floating seat 11 embedded in the groove at the lower end of the riveting fixing seat 29 and a riveting die head 10 installed at the lower end of the floating seat 11. A floating spring 12 is provided between the upper side of the floating seat 11 and the bottom of the groove. The floating spring 12 allows the riveting die head 10 to move upward when it contacts the product, ensuring that the product is not damaged while riveting is completed. And / or, a guide sleeve 13 is provided at the lower end of the riveting fixing seat 29 outside the riveting die head 10. A positioning pressure plate 14 matching the suspension part A is provided at the lower end of the guide sleeve 13. During riveting, the positioning pressure plate 14 can press and guide the upper end of the suspension part A to improve the riveting effect of the riveting die head 10.

[0046] In this embodiment, as Figure 1-2 As shown, a limiting guide rod 5 connected to the equipment stamping head 4 is axially inserted on the outer side of the vacuum upper shell 3. A push spring 31 is sleeved on the limiting guide rod 5. The limiting guide rod 5 can limit the movement of the vacuum upper shell 3. When the vacuum upper shell 3 contacts the vacuum lower shell 7, the vacuum upper shell 3 can move upward. The push spring 31 applies downward pressure to the vacuum upper shell 3 to ensure that the vacuum upper shell 3 and the vacuum lower shell 7 will not loosen during riveting.

[0047] like Figure 5 As shown, in this embodiment, a photoelectric detector 21 for aligning the suspension component A is provided on the side wall of the lower vacuum shell 7, which can detect whether the suspension component A is installed in place and prevent the equipment from starting erroneously; at the same time, a pressure detection device 32 can also be installed on the side wall of the upper vacuum shell 3 to monitor and display the pressure in the sealed space. The pressure detection device 32 can be a pointer pressure gauge or an electronic pressure gauge.

[0048] In this embodiment, the process of the vacuum dry filling and pressing device for the hydraulic suspension component of the automobile engine includes the following steps: first, install the pull rod C at the lower opening of the suspension component A, place the suspension component A on the suspension component positioning seat 17 for positioning, and extend the pull rod C into the pull-down seat 15;

[0049] Then the clamping assembly 6 clamps and fixes the suspension A, the multi-jaw clamping mechanism 24 clamps the pull rod C, and the pull seat 15 moves down synchronously to stretch and expand the inner cavity of the suspension A. Then, ethylene glycol aqueous solution is poured into the open position on the upper side of the suspension A through external equipment, and the matching bottom cover is placed on the open position on the upper side of the suspension A.

[0050] Next, the equipment's stamping head 4 presses down, and the vacuum lower shell 7 and vacuum upper shell 3 first connect and seal, and the sealed space between the vacuum lower shell 7 and vacuum upper shell 3 is evacuated to a certain value. The evacuation speed is relatively fast and can be completed in a short time.

[0051] Finally, the equipment's stamping head 4 continues to press down, and the bottom cover and the suspension component A are riveted and fixed by the riveting module. The multi-jaw clamping mechanism 24 releases the pull rod C, and the pull seat 15 pushes up and pushes the suspension component A out through the suspension component positioning seat 17, thus completing the dry filling and pressing process.

[0052] As can be seen from the above embodiments, by setting a vacuum lower shell and a vacuum upper shell, the ethylene glycol inside the suspension can be evacuated during riveting, eliminating the need for a vacuum opening on the outside of the suspension, thus ensuring the sealing and vibration damping effect of the suspension. This solves the problem of easy leakage at the vacuum opening of existing automotive engine hydraulic suspension components. The pull-down seat can stretch the side wall of the suspension during ethylene glycol injection, expanding the inner cavity of the ethylene glycol, allowing the ethylene glycol to be injected more effectively into various positions inside the suspension, thereby improving the vibration damping effect of the suspension.

[0053] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0054] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.

[0055] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0056] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

Claims

1. A vacuum dry-filling and pressing device for hydraulic suspension components of an automobile engine, characterized in that, The system includes a machine base (1), on the upper side of which a vacuum lower shell (7) is installed. Inside the vacuum lower shell (7) is a vertically movable suspension positioning seat (17), the suspension positioning seat (17) and a clamping assembly (6) for clamping and fixing the suspension (A). Above the machine base (1) is a riveting fixing seat (29) connected to the equipment punching head (4). Below the riveting fixing seat (29) is a riveting module matching the suspension (A). The outer side of the riveting fixing seat (29) is provided with… The machine base (1) is equipped with a pull-down seat (15) on the lower side of the machine base (1). The upper side of the pull-down seat (15) is connected to the suspension positioning seat (17) by a multi-jaw clamping mechanism (24) for clamping the lower end of the suspension (A). The machine base (1) is equipped with a pull-down drive component (8) for driving the pull-down seat (15) to move up and down. When the equipment stamping head (4) moves down, the vacuum lower shell (7) docks with the vacuum upper shell (3) and forms a sealed space inside. The sealed space is connected to a vacuum pumping device. The multi-jaw clamping mechanism (24) includes a base, a central hole in the middle of the base, and a jaw (25) that moves radially around the central hole. A liftable jaw drive block (27) is installed inside the upper side of the pull-down base (15). The upper end of the jaw drive block (27) is provided with an inclined surface or conical surface that matches the lower end of the jaw (25). When the jaw drive block (27) moves upward, it causes the jaw (25) to move radially toward the central hole to clamp the lower end of the suspension (A). A jaw drive cylinder (9) connected to the jaw drive block (27) is provided below the pull-down base (15). The pull-down drive component (8) is a cylinder and is arranged in two on both sides of the pull-down seat (15). A connecting plate (16) is provided between its extended ends. The gripper drive cylinder (9) is mounted on the connecting plate (16).

2. The vacuum dry filling and pressing device for automotive engine hydraulic suspension components according to claim 1, characterized in that: The clamping assembly (6) includes a symmetrically arranged semi-circular lower clamping block (62) and a semi-circular upper clamping block (61) arranged on the upper side of the semi-circular lower clamping block (62). A limiting groove (64) matching the protruding rib on the outside of the suspension member (A) is formed between the semi-circular lower clamping block (62) and the semi-circular upper clamping block (61). The semi-circular lower clamping block (62) is driven by the corresponding clamping drive member (2) to clamp the suspension member (A).

3. The vacuum dry filling and pressing device for automotive engine hydraulic suspension components according to claim 2, characterized in that: The machine base (1) is equipped with a base platform (28) on its upper side. The vacuum lower shell (7) and the clamping assembly (6) are both located on the upper side of the base platform (28). The suspension positioning seat (17) is located in the through hole in the middle of the base platform (28). The upper end of the base platform (28) is provided with guide rails (63) on both sides of the through hole. The semi-circular lower clamping block (62) cooperates with the guide rail (63) and moves along the guide rail (63). A sealing element (30) is provided between the upper vacuum shell (3) and the lower vacuum shell (7).

4. The vacuum dry filling and pressing device for automotive engine hydraulic suspension components according to claim 2, characterized in that: The clamping drive (2) is a clamping cylinder set on both sides of the vacuum lower shell (7). Its extension rod (19) passes through the vacuum lower shell (7) laterally and is connected to the semi-circular lower clamping block (62). The outer side of the extension rod (19) is fitted with a sealing bushing (18) that cooperates with the vacuum lower shell (7).

5. The vacuum dry filling and pressing device for automotive engine hydraulic suspension components according to claim 1, characterized in that: The riveting module includes a floating seat (11) embedded in the groove at the lower end of the riveting fixing seat (29) and a riveting die head (10) installed at the lower end of the floating seat (11). A floating spring (12) is provided between the upper side of the floating seat (11) and the bottom of the groove.

6. The vacuum dry filling and pressing device for automotive engine hydraulic suspension components according to claim 5, characterized in that: The lower end of the riveting fixing seat (29) is provided with a guide sleeve (13) located outside the riveting die head (10), and the lower end of the guide sleeve (13) is provided with a positioning pressure plate (14) that matches the suspension member (A). The outer side of the vacuum upper shell (3) is provided with a limiting guide rod (5) connected to the equipment stamping head (4) along the axial direction, and a push spring (31) is sleeved on the limiting guide rod (5).

7. The vacuum dry filling and pressing device for automotive engine hydraulic suspension components according to claim 1, characterized in that: The vacuum lower shell (7) is provided with a vacuum suction hole (20) on its side wall. A photoelectric detector (21) for aligning the suspension component (A) is provided on the side wall of the lower vacuum shell (7); a pressure detection device (32) is installed on the side wall of the upper vacuum shell (3).

8. A process for a vacuum dry-filling press-fitting device for a hydraulic suspension component of an automobile engine according to any one of claims 1-7, characterized in that, Includes the following steps: S1. Install the pull rod (C) at the lower opening of the suspension (A), place the suspension (A) on the suspension positioning seat (17) for positioning, and insert the pull rod (C) into the pull-down seat (15); S2, clamping assembly (6) clamps and fixes suspension (A), multi-jaw clamping mechanism (24) clamps pull rod (C), pull seat (15) moves down synchronously to stretch and expand the inner cavity of suspension (A), and then ethylene glycol aqueous solution is poured into the open position on the upper side of suspension (A) through external equipment, and the matching bottom cover is placed on the open position on the upper side of suspension (A); S3. The equipment punch head (4) presses down, and the vacuum lower shell (7) and the vacuum upper shell (3) are first connected and sealed. The sealed space between the vacuum lower shell (7) and the vacuum upper shell (3) is evacuated to a certain value. S4. The equipment punch head (4) continues to press down, and the bottom cover and the suspension part (A) are riveted and fixed by the riveting module. The multi-claw clamping mechanism (24) releases the pull rod (C), and the pull seat (15) pushes the suspension part (A) out through the suspension part positioning seat (17) to complete the dry filling and pressing process.

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