Vacuum dry-filling press-fitting device and process for hydraulic suspension part of automobile engine

Abstract

The invention discloses a vacuum dry-filling press-fitting device and process for an automobile engine hydraulic suspension part, the vacuum dry-filling press-fitting device comprises a machine table, the upper side of the machine table is provided with a vacuum lower shell, the vacuum lower shell is internally provided with a suspension part positioning seat capable of moving up and down, the suspension part positioning seat and a clamping assembly used for clamping and fixing the suspension part; a riveting fixing base connected with an equipment stamping head is arranged above the machine table, a riveting module matched with a suspension part is installed on the lower side of the riveting fixing base, a vacuum upper shell capable of moving up and down is arranged on the outer side of the riveting fixing base, and a pull-down base is installed on the lower side of the machine table. A multi-claw clamping mechanism used for clamping the lower end of the suspension part is connected between the upper side of the pull-down seat and the suspension part positioning seat. When the equipment punching head moves downwards, the lower vacuum shell and the upper vacuum shell are in butt joint, and a closed space used for vacuumizing is formed in the lower vacuum shell and the upper vacuum shell. The problem that leakage is prone to occurring at a used vacuumizing opening of an existing automobile engine hydraulic suspension part can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of the production of automotive engine hydraulic mounts, and specifically to a vacuum dry filling and pressing device for automotive engine hydraulic mounts. Background Art

[0002] Automotive engine hydraulic mounts are components used to connect the powertrain and the vehicle body. In existing automotive engine hydraulic mounts, ethylene glycol is injected. The ethylene glycol aqueous solution has good fluidity and incompressibility and can transmit pressure in the cavity of the hydraulic mount. When the engine vibrates, this pressure transmission enables the mount system to effectively play a buffering and vibration damping role, converting the vibration energy into the pressure energy and heat energy of the liquid, thereby reducing the transmission of vibration to the vehicle body. If there is air in the hydraulic mount, its performance will be affected. Air is compressible. When the mount is working, the presence of air will cause an increase in the compressibility of the liquid, making the stiffness and damping characteristics of the mount unstable and reducing the vibration damping effect. Vacuum pumping can effectively remove the air in the ethylene glycol solution and inside the mount, ensuring that the mount is filled with a uniform ethylene glycol solution and enabling it to stably play a vibration damping role under different working conditions. Vacuum pumping can create a negative pressure inside the mount, making it easier for the ethylene glycol solution to fill all parts of the mount, including some narrow channels and tiny gaps. Therefore, in the current process, it is necessary to pump vacuum through the vacuum pumping opening on the side wall after riveting and filling ethylene glycol into the automotive engine hydraulic mount. Such a structure is prone to leakage at the vacuum pumping opening, affecting the stability of the product during use. Summary of the Invention

[0003] The present invention provides a vacuum dry filling and pressing device and process for automotive engine hydraulic mounts, which can solve the problem that the existing automotive engine hydraulic mounts are prone to leakage at the vacuum pumping opening during use.

[0004] To achieve the above-mentioned purpose, in the first aspect, the present invention provides the following technical solutions: a vacuum dry filling and pressing device for a hydraulic suspension of an automobile engine, comprising a machine platform, a vacuum lower shell is installed on the upper side of the machine platform, a suspension positioning seat that can move up and down is arranged inside the vacuum lower shell, the suspension positioning seat and a clamping assembly for clamping and fixing the suspension, a riveting fixing seat connected to the equipment punching head is arranged above the machine platform, a riveting die set matching the suspension is installed on the lower side of the riveting fixing seat, a vacuum upper shell that can move up and down is arranged on the outer side of the riveting fixing seat, a pull-down seat is installed on the lower side of the machine platform, and the upper side of the pull-down seat is connected to the suspension positioning seat. A multi-claw clamping mechanism is connected to clamp the lower end of the suspension part. A pull-down driving part for driving the pull-down seat to move up and down is installed on the lower side of the machine table. When the punching head of the equipment moves downward, the vacuum lower shell and the vacuum upper shell are docked to form a closed space inside. The closed space is externally connected to a vacuum pumping device. By arranging the vacuum lower shell and the vacuum upper shell, the ethylene glycol inside the suspension part can be vacuumed during riveting. There is no need to set a vacuum opening on the outside of the suspension part, thereby ensuring the sealing and vibration reduction effect of the suspension part. At the same time, the pull-down seat can stretch the side wall of the suspension part when pouring ethylene glycol, expand the inner cavity of ethylene glycol, and enable ethylene glycol to be better poured into various positions inside the suspension part, thereby improving the vibration reduction effect of the suspension part.

[0005] Preferably, the clamping assembly includes a symmetrically arranged semicircular lower clamping block and a semicircular upper clamping block arranged on the upper side of the semicircular lower clamping block, a limiting groove matching the convex rib on the outer side of the suspension is formed between the semicircular lower clamping block and the semicircular upper clamping block, the semicircular lower clamping block is driven by the corresponding clamping drive member to clamp the suspension, the semicircular lower clamping block and the semicircular upper clamping block can cooperate with the convex rib on the outer side of the suspension to ensure that the suspension will not be displaced during riveting and the lower end being stretched.

[0006] Preferably, a base is installed on the upper side of the machine, the vacuum lower shell and the clamping assembly are both arranged on the upper side of the base, the suspension positioning seat is arranged in the through hole in the middle of the base, and the base 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 semicircular lower clamping block cooperates with the guide rails and translates along the guide rails, and the guide rails can guide the translation of the semicircular lower clamping block to ensure the accuracy of clamping;

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

[0009] Preferably, the clamping driving member is a clamping cylinder disposed on both sides of the vacuum lower housing. Its extending rod horizontally passes through the vacuum lower housing and is connected to the semi-circular lower clamping block. A sealing shaft sleeve cooperating with the vacuum lower housing is sleeved outside the extending rod. The semi-circular lower clamping block can be synchronously moved through the clamping driving member, making the space inside the vacuum lower housing more compact.

[0010] Preferably, the multi-claw clamping mechanism includes a seat body, a central hole disposed in the middle of the seat body, and claws that are radially movable around the central hole. An elevating claw driving block is installed inside the upper side of the lower pull seat. The upper end of the claw driving block is provided with an inclined surface or a conical surface that matches the lower end of the claw. When the claw driving block moves upward, the claws move radially toward the central hole to clamp the lower end of the suspension member. A claw driving cylinder connected to the claw driving block is disposed below the lower pull seat. The firm clamping of the claws can be achieved through the lifting of the claw driving block, which is convenient and fast. After clamping, it can also move downward along with the lower pull seat.

[0011] Preferably, the lower pull driving member is a cylinder and there are two cylinders disposed on both sides of the lower pull seat. A connecting plate is disposed between their extending ends. The claw driving cylinder is installed on the connecting plate, which can combine the two lower pull driving members and the claw driving cylinder together to achieve the synchronous movement of the lower pull seat and the claw driving cylinder.

[0012] Preferably, the riveting module includes a floating seat embedded in the groove at the lower end of the riveting fixed seat and a riveting die head installed at the lower end of the floating seat. A floating spring is disposed between the upper side of the floating seat and the bottom of the groove. Through the floating spring, the riveting die head can move upward when contacting the product, ensuring that the product will not be damaged while the riveting is completed. And / or, a guide sleeve is disposed outside the riveting die head at the lower end of the riveting fixed seat. A positioning pressing plate matching the suspension member is disposed at the lower end of the guide sleeve. During riveting, the positioning pressing plate can press and guide the upper end of the suspension member to improve the riveting effect of the riveting die head.

[0013] Preferably, a limit guiding rod connected to the equipment stamping head is axially penetrated through the outside of the vacuum upper housing. A lower pushing spring is sleeved on the limit guiding rod. The limit guiding rod can limit the movement of the vacuum upper housing. When the vacuum upper housing contacts the vacuum lower housing, the vacuum upper housing can move upward. The lower pushing spring applies a downward pressure to the vacuum upper housing to ensure that the vacuum upper housing and the vacuum lower housing will not become loose during riveting.

[0014] Preferably, vacuum suction holes are disposed on the side wall of the vacuum lower housing, which is convenient for matching with a vacuum pumping device;

[0015] And / or, a photodetector for aligning and suspending the part is arranged on the side wall of the vacuum lower shell, which can detect whether the suspending part is installed in place to prevent the equipment from being accidentally started;

[0016] And / or, a barometric pressure detection device is installed on the side wall of the vacuum upper shell, which can monitor and display the barometric pressure in the closed space.

[0017] In a second aspect, the present invention also provides a process for a vacuum dry filling and pressing device of an automotive engine hydraulic suspension part according to the first aspect, including the following steps:

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

[0019] S2. The clamping assembly clamps and fixes the suspension part, the multi-claw clamping mechanism clamps the pull rod, the lower pull seat moves downward synchronously to stretch and expand the inner cavity of the suspension part, and then ethylene glycol aqueous solution is poured into the open position on the upper side of the suspension part through an external device, and a matching bottom cover is placed at the open position on the upper side of the suspension part;

[0020] S3. The stamping head of the equipment presses downward, the vacuum lower shell and the vacuum upper shell are first docked and sealed, and the closed space between the vacuum lower shell and the vacuum upper shell is evacuated to a certain value;

[0021] S4. The stamping head of the equipment continues to press downward, the bottom cover and the suspension part are riveted and fixed through the riveting module, the multi-claw clamping mechanism releases the pull rod, and the lower pull seat moves upward to eject the suspension part 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 providing a vacuum lower shell and a vacuum upper shell, the ethylene glycol inside the suspension part can be evacuated during riveting, without setting a vacuum evacuation opening on the outside of the suspension part, ensuring the sealing performance and vibration damping effect of the suspension part, and solving the problem that the existing automotive engine hydraulic suspension part is prone to leakage at the vacuum evacuation opening during use;

[0024] At the same time, the lower pull seat can stretch the side wall of the suspension part during the perfusion of ethylene glycol, expand the inner cavity of ethylene glycol, so that ethylene glycol can be better perfused to each position inside the suspension part, improving the vibration damping effect of the suspension part. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0027] Figure 3For Figure 2 The enlarged structure diagram at position B of

[0028] Figure 4 The sectional structure diagram of the pull-down seat and the multi-jaw clamping mechanism of the present invention;

[0029] Figure 5 The sectional structure diagram of the vacuum lower shell of the present invention;

[0030] Figure 6 The schematic diagram of the riveting process of the present invention.

[0031] Reference numerals:

[0032] 1. Machine table, 11. Floating seat, 12. Floating spring, 13. Guide sleeve, 14. Positioning pressure plate, 15. Pull-down seat, 16. Connecting plate, 17. Suspension part positioning seat, 18. Sealing shaft sleeve, 19. Extension rod, 2. Clamping driving part, 20. Vacuum suction hole, 21. Photoelectric detector, 22. Coupling, 24. Multi-jaw clamping mechanism, 25. Claw, 26. Lifting column, 27. Claw driving block, 28. Base table, 29. Riveting fixing seat, 3. Vacuum upper shell, 30. Sealing part, 31. Lower push spring, 32. Air pressure detection device, 4. Equipment stamping head, 5. Limit guiding rod, 6. Clamping assembly, 61. Semi-circular upper clamping block, 62. Semi-circular lower clamping block, 63. Guide rail, 64. Limit groove, 7. Vacuum lower shell, 8. Pull-down driving part, 9. Claw driving cylinder, 10. Riveting die head, A. Suspension part, C. Pull rod. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0034] Such as Figures 1-6As shown in the figure, the present invention provides the following technical solutions to solve the problem that the existing vacuum opening of the automotive engine hydraulic mount is prone to leakage during use: A vacuum dry filling and pressing device for an automotive engine hydraulic mount, including a machine table 1. A vacuum lower shell 7 is installed on the upper side of the machine table 1. An axially movable mount positioning seat 17 is arranged inside the vacuum lower shell 7, the mount positioning seat 17 and a clamping assembly 6 for clamping and fixing the mount A. Above the machine table 1, there is a riveting and fixing seat 29 connected to the equipment punch head 4. A riveting module matching the mount A is installed on the lower side of the riveting and fixing seat 29. A vacuum upper shell 3 that can move up and down is arranged outside the riveting and fixing seat 29. A lower pull seat 15 is installed on the lower side of the machine table 1. A multi-jaw clamping mechanism 24 for clamping the lower end of the mount A is connected between the upper side of the lower pull seat 15 and the mount positioning seat 17. A lower pull driving member 8 for driving the lower pull seat 15 to move up and down is installed on the lower side of the machine table 1. When the equipment punch head 4 moves down, the vacuum lower shell 7 is docked with the vacuum upper shell 3 and a sealed space is formed inside. This sealed space is externally connected to a vacuum pumping device. By setting the vacuum lower shell 7 and the vacuum upper shell 3, the ethylene glycol inside the mount A can be evacuated during riveting, eliminating the need to set a vacuum opening outside the mount A, ensuring the sealing performance and vibration damping effect of the mount. At the same time, the lower pull seat 15 can stretch the side wall of the mount A during ethylene glycol filling, expanding the inner cavity of the ethylene glycol, enabling the ethylene glycol to be better filled into various positions inside the mount A and improving the vibration damping effect of the mount A.

[0035] Specifically, the machine table 1 in this embodiment can use the machine table of a conventional press, and the equipment punch head 4 can also use the punch head of an existing conventional press. A vacuum pumping device and an ethylene glycol filling device can also be set on the equipment. The vacuum pumping device can use a vacuum pump and corresponding connecting pipelines, and the connecting pipelines 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 pipe for ethylene glycol filling. During filling, it extends out and aligns with the upper end of the mount A, and then retracts the filling pipe after completion. It can also be filled through a manual filling pipe, which can be selected according to needs. Among them, a vacuum suction hole 20 is arranged on the side wall of the vacuum lower shell 7 to facilitate matching with the vacuum pumping device.

[0036] Before the process starts, a pull rod C can be installed at the lower end of the suspension part A. One end of the pull rod C is a threaded end, and the threaded end is threadedly connected to the lower end of the suspension part A. The multi-claw clamping mechanism 24 can clamp the pull rod C and then pull the lower half of the suspension part A downward. The main body of the suspension part A is made of rubber material. Therefore, when the pull rod C is pulled downward, the side wall of the lower half of the suspension part A can be stretched, expanding the inner cavity. Then, ethylene glycol can be poured, and more ethylene glycol can be poured. After the riveting is completed, the suspension part A returns to its original shape, so that the ethylene glycol can fill into every corner of the suspension part A, achieving a better support effect when the suspension part A is used.

[0037] In this embodiment, as Figures 2-3 shown, the clamping assembly 6 includes symmetrically arranged semi-circular lower clamping blocks 62 and semi-circular upper clamping blocks 61 arranged on the upper side of the semi-circular lower clamping blocks 62. A limiting groove 64 matching the convex ribs on the outer side of the suspension part A is formed between the semi-circular lower clamping blocks 62 and the semi-circular upper clamping blocks 61. The semi-circular lower clamping blocks 62 are driven by corresponding clamping driving parts 2 to clamp the suspension part A. The semi-circular lower clamping blocks 62 and the semi-circular upper clamping blocks 61 can cooperate with the convex ribs on the outer side of the suspension part A to ensure that the suspension part A does not displace during riveting and when the lower end is stretched. The semi-circular upper clamping blocks 61 and the semi-circular lower clamping blocks 62 are connected by screws, with dimensions matching those of the suspension part A. When the limiting groove 64 is embedded with the convex ribs on the outer side of the suspension part A, the suspension part A can be vertically limited as a whole.

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

[0039] At the same time, guide rails 63 can also be arranged on both sides of the through hole at the upper end of the base table 28. The semi-circular lower clamping blocks 62 cooperate with the guide rails 63 and translate along the guide rails 63. The guide rails 63 can guide the translation of the semi-circular lower clamping blocks 62 to ensure the accuracy of clamping. The length of the guide rails 63 can be adjusted as needed and can be connected to the base table 28 by screws;

[0040] And / or, a seal 30 is arranged between the vacuum upper shell 3 and the vacuum lower shell 7, which can ensure the sealing performance of the closed space. The seal 30 can be a rubber sealing ring and can be embedded on the upper edge of the vacuum lower shell 7. When the vacuum upper shell 3 is pressed down, it can contact the seal 30 on the vacuum lower shell 7, and the sealing performance between the vacuum upper shell 3 and the vacuum lower shell 7 can be ensured under the action of the gravity of the vacuum upper shell 3.

[0041] In this embodiment, the clamping driving member 2 is a clamping cylinder arranged on both sides of the vacuum lower housing 7. Its extending rod 19 horizontally passes through the vacuum lower housing 7 and is connected to the semi-circular lower clamping block 62. A sealing shaft sleeve 18 that cooperates with the vacuum lower housing 7 is sleeved outside the extending rod 19. The semi-circular lower clamping block 62 can be synchronously moved through the clamping driving member 2, making the space inside the vacuum lower housing 7 more compact.

[0042] In this embodiment, as Figures 4-5 shown, the multi-claw clamping mechanism 24 includes a seat body, a central hole arranged in the middle of the seat body, and a clamping claw 25 that moves radially around the central hole. An elevating clamping claw driving block 27 is installed inside the upper side of the lower pull seat 15. The upper end of the clamping claw driving block 27 is provided with an inclined surface or a conical surface that matches the lower end of the clamping claw 25. When the clamping claw driving block 27 moves upward, the clamping claw 25 moves radially toward the central hole to clamp the lower end of the suspension member A. A clamping claw driving cylinder 9 connected to the clamping claw driving block 27 is arranged below the lower pull seat 15. The firm clamping of the clamping claw 25 can be realized through the lifting of the clamping claw driving block 27, which is convenient and fast. After clamping, it can also move downward along with the lower pull seat 15. Three clamping claws 25 can be provided, and an inclined surface can also be arranged on the outer side of the lower end of the clamping claw 25, and this inclined surface matches the inclined surface or the conical surface on the clamping claw driving block 27.

[0043] Specifically, a lifting column 26 is arranged to pass through the lower part of the lower pull seat 15. The lower end of the lifting column 26 is connected to the extending rod of the clamping claw driving cylinder 9 through a coupling 22. There is no fixed connection between the lifting column 26 and the clamping claw driving block 27. When the lifting column 26 moves upward, the clamping claw driving block 27 can be lifted up, and when the lifting column 26 moves downward, the clamping claw driving block 27 can automatically move downward under the action of gravity.

[0044] In this embodiment, as Figure 2 shown, the lower pull driving member 8 is a cylinder and is arranged in two on both sides of the lower pull seat 15. A connecting plate 16 is arranged between its extending ends. The clamping claw driving cylinder 9 is installed on the connecting plate 16, and the two lower pull driving members 8 and the clamping claw driving cylinder 9 can be combined together to realize the synchronous movement of the lower pull seat 15 and the clamping claw driving cylinder 9.

[0045] In this embodiment, as Figure 2As shown in the figure, the riveting module includes a floating seat 11 embedded in the lower groove 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 arranged between the upper side of the floating seat 11 and the bottom of the groove. When the riveting die head 10 contacts the product, the floating spring 12 enables the riveting die head 10 to move upward, ensuring that the product will not be damaged while the riveting is completed. And / or, a guide sleeve 13 is arranged outside the riveting die head 10 at the lower end of the riveting fixing seat 29. A positioning pressure plate 14 matching the suspension part A is arranged 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 Figures 1-2 shown in the figure, a limit guiding rod 5 connected to the equipment punching head 4 is axially penetrated through the outer side of the vacuum upper shell 3. A lower pushing spring 31 is sleeved on the limit guiding rod 5. The limit guiding 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 lower pushing spring 31 applies a 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] As Figure 5 shown in the figure, in this embodiment, a photoelectric detector 21 aligned with the suspension part A is arranged on the side wall of the vacuum lower shell 7, which can detect whether the suspension part A is installed in place to prevent the equipment from starting by mistake; at the same time, a air pressure detection device 32 can also be installed on the side wall of the vacuum upper shell 3 to monitor and display the air pressure in the closed space. The air pressure detection device 32 can adopt a pointer air pressure gauge or an electronic air pressure gauge.

[0048] In this embodiment, the process of the vacuum dry filling and pressing device for the automotive engine hydraulic suspension part includes the following steps: First, install a pull rod C at the lower opening of the suspension part A, place the suspension part A on the suspension part positioning seat 17 for positioning, and the pull rod C extends into the lower pull seat 15;

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

[0050] Next, the equipment punching head 4 presses down, and the vacuum lower shell 7 and the vacuum upper shell 3 are first docked and sealed, and the closed space between the vacuum lower shell 7 and the vacuum upper shell 3 is evacuated. When a certain value is reached, the evacuation speed is relatively fast and can be completed in a short time;

[0051] Finally, the device stamping head 4 continues to press downwards, and the bottom cover and the suspension part A are riveted and fixed through the riveting module. The multi-claw clamping mechanism 24 releases the pull rod C, and the lower pull seat 15 jacks upwards to push out the suspension part A through the suspension part positioning seat 17, completing the dry filling and pressing process.

[0052] It can be obtained from the above embodiments that by setting the vacuum lower shell and the vacuum upper shell, the ethylene glycol inside the suspension part can be evacuated during riveting, without the need to set a vacuum opening on the outside of the suspension part, ensuring the sealing performance and vibration damping effect of the suspension part, and solving the problem that the existing automotive engine hydraulic suspension parts are prone to leakage at the vacuum opening during use; the lower pull seat can stretch the side wall of the suspension part when filling ethylene glycol, expanding the inner cavity of ethylene glycol, so that ethylene glycol can be better filled into each position inside the suspension part, improving the vibration damping effect of the suspension part.

[0053] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indication will also change accordingly.

[0054] In addition, in the present invention, the descriptions such as "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0055] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0056] In addition, the technical solutions between various embodiments of the present invention can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

Claims

1. A vacuum dry filling and pressing device for automobile engine hydraulic suspension parts, characterized in that: The invention comprises a machine platform (1), wherein a vacuum lower shell (7) is installed on the upper side of the machine platform (1), wherein a suspension part positioning seat (17) movable up and down is arranged inside the vacuum lower shell (7), wherein the suspension part positioning seat (17) and a clamping assembly (6) for clamping and fixing the suspension part (A) are arranged above the machine platform (1), wherein a riveting fixing seat (29) connected to a punching head (4) of the equipment is installed on the lower side of the riveting fixing seat (29), and wherein a riveting die set matching the suspension part (A) is arranged on the outer side of the riveting fixing seat (29). A vacuum upper shell (3) that can move up and down, a pull-down seat (15) is installed on the lower side of the machine table (1), a multi-claw clamping mechanism (24) for clamping the lower end of the suspension (A) is connected between the upper side of the pull-down seat (15) and the suspension positioning seat (17), a pull-down driving member (8) for driving the pull-down seat (15) to move up and down is installed on the lower side of the machine table (1), and when the punching head (4) of the equipment moves downward, the vacuum lower shell (7) and the vacuum upper shell (3) are docked and a closed space is formed inside, and the closed space is externally connected to a vacuum pumping device.

2. The vacuum dry filling and pressing device for automobile engine hydraulic mounts according to claim 1 is characterized in that: The clamping assembly (6) comprises a symmetrically arranged semicircular lower clamping block (62) and a semicircular upper clamping block (61) arranged on the upper side of the semicircular lower clamping block (62), a limiting groove (64) matching the convex rib on the outer side of the suspension part (A) is formed between the semicircular lower clamping block (62) and the semicircular upper clamping block (61), and the semicircular lower clamping block (62) is driven by the corresponding clamping driving member (2) to clamp the suspension part (A).

3. The vacuum dry filling and pressing device for automobile engine hydraulic mounts according to claim 2 is characterized in that: 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 arranged on the upper side of the base platform (28), and the suspension component positioning seat (17) is arranged in a through hole in the middle of the base platform (28); And / or, the upper end of the base platform (28) is provided with guide rails (63) on both sides of the through hole, and the semicircular lower clamping block (62) cooperates with the guide rails (63) and translates along the guide rails (63); And / or, a sealing member (30) is provided between the vacuum upper shell (3) and the vacuum lower shell (7).

4. The vacuum dry filling and pressing device for automobile engine hydraulic mounts according to claim 2, characterized in that: The clamping drive member (2) is a clamping cylinder arranged on both sides of the vacuum lower shell (7), and its extension rod (19) passes through the vacuum lower shell (7) horizontally and is connected to the semicircular lower clamping block (62). The outer side of the extension rod (19) is provided with a sealing shaft sleeve (18) that cooperates with the vacuum lower shell (7).

5. The vacuum dry filling and pressing device for automobile engine hydraulic mounts according to claim 1, characterized in that: The multi-claw clamping mechanism (24) includes a seat body, a center hole arranged in the middle of the seat body and a clamping claw (25) that moves radially around the center hole. A clamping claw driving block (27) that can be raised and lowered is installed inside the upper side of the pull-down seat (15). The upper end of the clamping claw driving block (27) is provided with an inclined surface or a conical surface that matches the lower end of the clamping claw (25). When the clamping claw driving block (27) moves upward, the clamping claw (25) moves radially toward the center hole to clamp the lower end of the suspension part (A). A clamping claw driving cylinder (9) connected to the clamping claw driving block (27) is provided below the pull-down seat (15).

6. The vacuum dry filling and pressing device for automobile engine hydraulic mounts according to claim 5, characterized in that: The pull-down driving member (8) is a cylinder and is in the form of two cylinders arranged on both sides of the pull-down seat (15), a connecting plate (16) is arranged between the protruding ends thereof, and the clamping jaw driving cylinder (9) is mounted on the connecting plate (16).

7. The vacuum dry filling and pressing device for automobile engine hydraulic mounts according to claim 1, characterized in that: The riveting die set comprises a floating seat (11) embedded in a groove at the lower end of a riveting fixed seat (29) and a riveting die head (10) installed at the lower end of the floating seat (11); a floating spring (12) is arranged between the upper side of the floating seat (11) and the bottom of the groove.

8. The vacuum dry filling and pressing device for automobile engine hydraulic mounts according to claim 7, characterized in that: The lower end of the riveting fixing seat (29) is located outside the riveting die head (10) and is provided with a guide sleeve (13), and the lower end of the guide sleeve (13) is provided with a positioning plate (14) matching the suspension part (A); And / or, a limiting guide rod (5) connected to the equipment punching head (4) is axially penetrated on the outer side of the vacuum upper shell (3), and a push-down spring (31) is sleeved on the limiting guide rod (5).

9. The vacuum dry filling and pressing device for automobile engine hydraulic mounts according to claim 1, characterized in that: A vacuum suction hole (20) is provided on the side wall of the vacuum lower shell (7); And / or, a photoelectric detector (21) aligned with the suspension (A) is provided on the side wall of the vacuum lower shell (7); And / or, an air pressure detection device (32) is installed on the side wall of the vacuum upper shell (3).

10. A process for vacuum dry filling and pressing of a hydraulic suspension of an automobile engine according to any one of claims 1 to 9, characterized in that: The steps include: S1. Install a pull rod (C) at the lower opening of the suspension member (A), place the suspension member (A) on the suspension member positioning seat (17) for positioning, and extend the pull rod (C) into the lower pull seat (15); S2, the clamping assembly (6) clamps and fixes the suspension (A), the multi-claw clamping mechanism (24) clamps the pull rod (C), the pull-down seat (15) moves downward synchronously to stretch and expand the inner cavity of the suspension (A), and then an ethylene glycol aqueous solution is poured into the upper open position of the suspension (A) through an external device, and a matching bottom cover is placed at the upper open position of the suspension (A); S3, the punch head (4) of the equipment is pressed downward, the vacuum lower shell (7) and the vacuum upper shell (3) are first butted and sealed, and the closed space between the vacuum lower shell (7) and the vacuum upper shell (3) is evacuated to a certain value; S4, the punch head (4) of the equipment continues to press down, and the bottom cover and the suspension part (A) are fixed by riveting and pressing through the riveting die set, the multi-claw clamping mechanism (24) releases the pull rod (C), and the pull-down seat (15) pushes up to push out the suspension part (A) through the suspension part positioning seat (17), thus completing the dry filling and pressing process.

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