Auxiliary assembly device for engine support damper

Abstract

The present application relates to the related technical field of engine supporting damper assembly, and discloses an auxiliary assembly device for engine supporting damper, which comprises a bottom plate and a workbench rotatably arranged on the bottom plate, and a tool clamp is arranged on the workbench.The tool clamp comprises a shell, two groups of clamping components and a driving mechanism, the clamping component comprises an outer clamping part, an inner clamping part and an arc limiting part, the outer clamping part and the inner clamping part clamp and position the outer side and the inner wall of the connecting ring of the extending end of the engine supporting damper respectively, the arc limiting part is used for limiting the outer periphery of the damping spring, and the arc limiting part is connected with the clamping component through an elastic supporting structure to adapt to the outer contour of the damping spring and form an arc surface fitting and clamping.The device can improve the positioning stability of the connecting ring and the limiting reliability of the damping spring, and improve the assembly stability and assembly efficiency under different assembly postures.

Description

Technical Field

[0001] This invention belongs to the technical field of engine support shock absorber assembly, and more specifically, it relates to an auxiliary assembly device for engine support shock absorbers. Background Technology

[0002] Engine mount shock absorbers are commonly used in automotive powertrain systems to connect the engine to the vehicle body or supporting structure, serving to buffer vibrations, reduce impacts, and improve operational stability. These engine mount shock absorbers typically include components such as a connecting ring, a base, a movable rod, and a damping spring.

[0003] The existing technology for assembling engine support shock absorbers still has the following drawbacks: First, in existing technologies, when assembling engine support shock absorbers, it is usually necessary to first position the connecting ring at its protruding end so that the subsequent base, movable rod, and related connecting components can be aligned and installed. However, in existing assembly methods, the positioning of the connecting ring is mostly done by single-sided support or simple clamping, which makes it difficult to simultaneously ensure the stable constraint of the inner and outer sides of the connecting ring. This can easily lead to problems such as offset, shaking, or misalignment during assembly, thereby affecting the overall assembly accuracy and assembly efficiency.

[0004] Secondly, in existing technologies, the damping springs in engine support shock absorbers typically have an annular outer contour and a certain elastic restoring force. If effective limiting is lacking during assembly, the damping springs are prone to skewing, shifting, rebounding, or even over-compression, affecting the installation stability of subsequent components. In particular, existing clamping structures often employ partial contact or unilateral limiting methods, which are difficult to adapt to the annular outer contour of the damping spring and cannot form a relatively uniform circumferential constraint, resulting in poor clamping performance of the damping spring.

[0005] Third, in existing technologies, during the assembly of engine support shock absorbers, it is sometimes necessary to adjust the workpiece angle according to operational requirements to facilitate assembly operations in different directions. Furthermore, different models of engine support shock absorbers may differ in aspects such as the size of the connecting ring and the outer diameter of the damping spring. Existing assembly devices typically lack the ability to maintain stable clamping during angle adjustment and also lack adaptability to workpieces of different specifications. This makes them prone to clamping loosening when the posture changes, or requiring tooling replacement when changing models, thus reducing assembly efficiency and the versatility of the device.

[0006] Therefore, it is necessary to provide an auxiliary assembly device for engine support shock absorbers to solve the problems of unstable positioning of the connecting ring, poor limiting effect of the shock absorber spring, and insufficient clamping stability during the adjustment process in the prior art. Summary of the Invention

[0007] The present invention provides an auxiliary assembly device for an engine support shock absorber, which overcomes the above-mentioned defects in the prior art.

[0008] The purpose and effect of the engine support shock absorber auxiliary assembly device of the present invention are achieved by the following specific technical means: An auxiliary assembly device for an engine support shock absorber includes a base plate, on which a worktable is rotatably mounted, and further includes: A tooling fixture is disposed on the worktable. The tooling fixture includes a housing, two sets of clamping components, and a driving mechanism. The driving mechanism is used to drive the two sets of clamping components to move closer together or further apart. Each clamping assembly includes an outer clamping part, an inner clamping part, and an arc-shaped limiting part. The outer clamping part is used to abut against the outer side of the connecting ring at the protruding end of the engine support shock absorber. The inner clamping part is used to extend into the connecting ring and expand outward to abut against the inner wall of the connecting ring. The arc-shaped limiting part is used to abut against the outer periphery of the shock-absorbing spring of the engine support shock absorber. An elastic support structure is disposed between the clamping assembly and the arc-shaped limiting part, so that the arc-shaped limiting part undergoes elastic deformation relative to the clamping assembly during the clamping process and adapts to the outer contour of the shock-absorbing spring.

[0009] In this design, the connecting ring can be positioned by double clamping from both the outer and inner clamping parts; the shock absorber spring can be adaptively limited by the arc-shaped limiting part and the elastic support structure, thereby improving the positioning stability and limiting reliability during the assembly of the engine support shock absorber.

[0010] In a further technical solution, the driving mechanism includes a vertically movable ring and a hydraulic telescopic cylinder that drives the movable ring to rise and fall. The movable ring is connected to two sets of clamping assemblies through connecting parts, so that when the movable ring moves, it drives the two sets of clamping assemblies to move towards each other or away from each other synchronously.

[0011] In this solution, the linkage of the movable ring, hydraulic telescopic cylinder and connecting parts enables the two sets of clamping components to move synchronously, thereby improving the consistency of clamping action and facilitating the synchronous positioning and limiting of the connecting ring and shock-absorbing spring.

[0012] In a further technical solution, the clamping assembly includes a slider, a movable block, and a movable frame. The slider is radially slidably disposed within the housing. The movable block is fixedly disposed on the slider. The movable frame is disposed on the movable block. The arc-shaped limiting portion is disposed on the movable frame.

[0013] In this solution, the motion of the drive mechanism can be stably transmitted to the arc-shaped limiting part through the transmission cooperation of the slider, the movable block and the movable frame, thereby ensuring the smooth movement of the clamping component and improving the limiting accuracy of the arc-shaped limiting part.

[0014] In a further technical solution, the outer clamping part includes a round rod and a slip ring slidably disposed on the outside of the round rod. The slip ring is used to abut against the axial end face of the connecting ring, and a compression spring is provided between the slip ring and the limiting frame to keep the slip ring holding the clamping preload.

[0015] In this solution, the slip ring abuts against the axial side end face of the connecting ring, and the clamping preload provided by the elastic element enables the outer clamping part to form a stable outer positioning of the connecting ring, thereby improving the reliability of the connecting ring clamping.

[0016] In a further technical solution, the inner clamping part includes a plurality of arc-shaped clamping blocks disposed on the round rod, a top rod disposed inside the round rod, and a connecting plate connecting the top rod and the plurality of arc-shaped clamping blocks. When the top rod moves relative to the round rod, it drives the plurality of arc-shaped clamping blocks to open radially outward to abut against the inner wall of the connecting ring.

[0017] In this solution, the linkage of the top rod, connecting plate and multiple arc-shaped clamping blocks enables the inner clamping part to form radially outward support clamping inside the connecting ring, thereby cooperating with the outer clamping part to achieve dual positioning of the connecting ring inside and outside.

[0018] In a further technical solution, a return spring is provided between the top rod and the round rod, so that the top rod resets after being released from clamping and drives the multiple arc-shaped clamping blocks to retract.

[0019] In this design, the push rod and multiple arc-shaped clamping blocks can be automatically reset by the return spring, which facilitates clamp release and workpiece removal, and improves the stability of the internal clamping part when it is reused.

[0020] In a further technical solution, the arc-shaped limiting part includes an arc-shaped clamp and an arc-shaped rubber component disposed on the arc-shaped clamp. The arc-shaped rubber component is disposed toward the shock-absorbing spring, and the arc-shaped clamp can be elastically deformed so that the arc-shaped rubber component abuts against the outer arc surface of the shock-absorbing spring.

[0021] In this design, the elastic deformation of the arc-shaped clamp and the contact of the arc-shaped rubber part allow the arc-shaped limiting part to better adapt to the outer contour of the shock-absorbing spring, thereby improving the stability of the outer peripheral limiting of the shock-absorbing spring.

[0022] In a further technical solution, the elastic support structure includes a hollow elastic element and multiple elastic support components. The multiple elastic support components are spaced apart within the hollow elastic element along the extension direction of the arc-shaped clamp to form multi-point elastic support for the arc-shaped clamp.

[0023] In this solution, the multi-point elastic support formed by the hollow elastic element and multiple elastic support components can improve the adaptability of the arc-shaped clamp to the outer contour of the shock-absorbing spring, thereby making the arc-shaped limiting part more uniformly limiting the shock-absorbing spring.

[0024] In a further technical solution, the elastic support assembly includes a pressure block, an elastic element, and a push plate. When the pressure block is pressed and moves, the push plate drives the elastic element to separate relative to each other along an arc-shaped trajectory, thereby changing the support position of the arc-shaped clamp. One end of the pressure block is connected to the radially inner side of the hollow elastic element, and a spring is provided between the other end of the pressure block and the radially outer side of the hollow elastic element.

[0025] In this solution, the support position of the arc-shaped clamp can be dynamically adjusted by the linkage of the pressure block, the push plate and the elastic element, thereby improving the ability of the arc-shaped clamp to fit the shock-absorbing springs with different outer contours.

[0026] In a further technical solution, the two ends of the worktable are respectively connected to a first turntable and a second turntable, the first turntable and the second turntable are rotatably mounted on a first fixed base and a second fixed base, and the second turntable is connected to the output end of a stepper motor; an expansion member is provided between the arc-shaped rubber part and the arc-shaped clamping part, and the expansion member is connected to the hollow elastic part to push the arc-shaped rubber part to swing when the arc-shaped clamping part is compressed.

[0027] In this solution, the rotation adjustment of the worktable can be realized through the cooperation of the first turntable, the second turntable and the stepper motor, which facilitates the assembly of the engine support shock absorber in different postures; the expansion component pushes the arc-shaped rubber component to swing, which can improve the adaptability of the arc-shaped limiting part during the clamping process.

[0028] Compared with the prior art, the present invention has the following beneficial effects: This invention discloses an auxiliary assembly device for an engine support shock absorber. Through the opposing action of two sets of clamping components, the outer clamping part clamps the outer side of the connecting ring, while the inner clamping part supports and clamps the inner wall of the connecting ring. This creates a double-positioning and fixing of the connecting ring, improving the positioning stability of the engine support shock absorber in the initial assembly stage and reducing the possibility of connecting ring misalignment, shaking, or misalignment during assembly. Furthermore, by setting an arc-shaped limiting part and cooperating with an elastic support structure, the arc-shaped limiting part can adapt to the outer contour of the shock absorber spring during clamping, forming an arc-shaped surface that fits and covers the outer periphery of the shock absorber spring. This prevents the shock absorber spring from skewing, shifting, rebounding, or excessive compression during assembly, thus improving the limiting stability of the shock absorber spring.

[0029] This invention discloses an auxiliary assembly device for an engine support shock absorber. Because the arc-shaped limiting part is connected to the clamping assembly via an elastic support structure, it can elastically deform and adjust its support position during clamping. Therefore, it can adapt to the dimensional differences of different models of engine support shock absorbers within a certain range, improving the versatility of the tooling fixture. Furthermore, by rotating the worktable, the assembly posture of the engine support shock absorber can be adjusted according to assembly needs. During angle adjustment, in conjunction with relevant support and compensation structures, the risk of the clamping assembly becoming loose can be reduced, ensuring that the engine support shock absorber maintains a relatively stable positioning and limiting state under different assembly postures. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0032] Figure 1 This is a schematic diagram of the first isometric structure of the present invention; Figure 2 This is a schematic diagram of the second isometric structure of the present invention; Figure 3 This is an isometric structural diagram of the first fixed base in this invention; Figure 4 This is an isometric structural diagram of the engine support shock absorber in this invention; Figure 5 This is a top view of the structure of the present invention; Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure at point AA; Figure 7 for Figure 6 A magnified schematic diagram of the local structure at point E; Figure 8 for Figure 6 A magnified schematic diagram of the local structure at point F; Figure 9 This is a front view structural diagram of the present invention; Figure 10 for Figure 9 Schematic diagram of the cross-sectional structure at point BB; Figure 11 for Figure 9 Schematic diagram of the cross-sectional structure at the CC section; Figure 12This is an isometric structural diagram of the tooling fixture in this invention; Figure 13 for Figure 12 Schematic diagram of the cross-sectional structure at point DD.

[0033] Explanation of reference numerals in the attached figures: Base plate 10, worktable 11, first fixed seat 12, first turntable 13, second fixed seat 14, second turntable 15, stepper motor 16, housing 17, slider 18, movable ring 19, connector 20, hydraulic telescopic cylinder 21, movable block 22, movable frame 23, hollow elastic element 24, elastic support assembly 25, arc-shaped clamp 26, arc-shaped rubber element 27, limit frame 28, round rod 29, slip ring 30, compression spring 31, arc-shaped clamp 32, connecting plate 33, return spring 34, top rod 35, pressure block 36, spring 37, elastic element 38, push plate 39, annular cavity 40, guide ring 41, first elastic water bladder 42, through hole 43, first connecting channel 44, plug 45, second connecting channel 46, cavity 47, second elastic water bladder 48, tension spring 49, engine support shock absorber 50, expansion element 51. Detailed Implementation

[0034] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0035] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] As attached Figure 1 To be continued Figure 13 As shown: This invention provides an embodiment of an auxiliary assembly device for an engine support shock absorber. See attached document Figure 1 To be continued Figure 13 It includes a base plate 10, on which a worktable 11 is rotatably mounted, and also includes: The tooling fixture is set on the workbench 11. The tooling fixture includes a housing 17, two sets of clamping components and a drive mechanism. The drive mechanism is used to drive the two sets of clamping components to move closer to each other or away from each other. Each clamping component includes an outer clamping part, an inner clamping part, and an arc-shaped limiting part. The outer clamping part is used to abut against the outer side of the connecting ring at the protruding end of the engine support shock absorber 50. The inner clamping part is used to extend into the connecting ring and expand outward to abut against the inner wall of the connecting ring. The arc-shaped limiting part is used to abut against the outer periphery of the shock-absorbing spring of the engine support shock absorber 50. An elastic support structure is provided between the clamping component and the arc-shaped limiting part, so that the arc-shaped limiting part can elastically deform relative to the clamping component during the clamping process and adapt to the outer contour of the shock-absorbing spring.

[0038] In practice, after the engine support shock absorber is placed in the tooling fixture, the drive mechanism drives the two sets of clamping components to move closer together, so that the outer clamping part abuts against the outer side of the connecting ring, and the inner clamping part extends into the connecting ring and expands outward to abut against the inner wall of the connecting ring. At the same time, the arc-shaped limiting part moves towards and contacts the outer periphery of the shock absorber spring. During the clamping process, the elastic support structure causes the arc-shaped limiting part to elastically deform relative to the clamping components to adapt to the outer contour of the shock absorber spring. Through the cooperation of the outer and inner clamping parts, the connecting ring can be clamped and positioned by both internal and external means; through the cooperation of the arc-shaped limiting part and the elastic support structure, the shock absorber spring can be adaptively limited, thereby improving the positioning stability and limiting reliability during the assembly process of the engine support shock absorber.

[0039] Preferred options are shown in the appendix. Figure 6 Appendix Figure 8 Appendix Figure 10 The driving mechanism includes a vertically movable ring 19 and a hydraulic telescopic cylinder 21 that drives the movable ring 19 to rise and fall. The movable ring 19 is connected to two sets of clamping assemblies through a connector 20, so that when the movable ring 19 moves, it drives the two sets of clamping assemblies to move towards each other or away from each other synchronously. The movable ring 19 and the slider 18 are rotatably connected through the connector 20. One end of the connector 20 is rotatably connected to the movable ring 19, and the other end of the connector 20 is rotatably connected to the slider 18.

[0040] Preferred options are shown in the appendix. Figure 6 To be continued Figure 8The clamping assembly includes a slider 18, a movable block 22, and a movable frame 23. The slider 18 is radially slidably disposed within the housing 17. The movable block 22 is fixedly disposed on the slider 18. The movable frame 23 is disposed on the movable block 22. An arc-shaped limiting part is disposed on the movable frame 23.

[0041] Preferred options are shown in the appendix. Figure 6 To be continued Figure 8 The arc-shaped limiting part includes an arc-shaped clamp 26 and an arc-shaped rubber part 27 disposed on the arc-shaped clamp 26. The arc-shaped rubber part 27 is disposed toward the shock-absorbing spring. The arc-shaped clamp 26 can be elastically deformed so that the arc-shaped rubber part 27 abuts against the outer arc surface of the shock-absorbing spring. The arc-shaped clamp 26 is slidably disposed inside the movable frame 23.

[0042] Preferred options are shown in the appendix. Figure 6 To be continued Figure 8 The outer clamping part includes a round rod 29 and a slip ring 30 slidably disposed on the outside of the round rod 29. The slip ring 30 is used to abut against the axial end face of the connecting ring, and a compression spring 31 is provided between the slip ring 30 and the limiting frame 28 to keep the slip ring 30 clamping preload. The limiting frame 28 is fixed to the lower part of the arc-shaped clamp 26, and the round rod 29 is fixed inside the limiting frame 28.

[0043] Preferred options are shown in the appendix. Figure 6 To be continued Figure 8 The inner clamping part includes multiple arc-shaped clamping blocks 32 disposed on the round rod 29, a top rod 35 disposed inside the round rod 29, and a connecting plate 33 connecting the top rod 35 and the multiple arc-shaped clamping blocks 32. When the top rod 35 moves relative to the round rod 29, it drives the multiple arc-shaped clamping blocks 32 to open radially outward to abut against the inner wall of the connecting ring. The multiple arc-shaped clamping blocks 32 are arranged in a circumferential array and are radially slidably disposed on the outer wall of the round rod 29. One end of the top rod 35 is rotatably connected to the arc-shaped clamping blocks 32 through the connecting plate 33. One end of the connecting plate 33 is rotatably connected to the arc-shaped clamping blocks 32, and the other end of the connecting plate 33 is rotatably connected to the top rod 35. The top rod 35 slides axially in contact inside the round rod 29.

[0044] Preferred options are shown in the appendix. Figure 6 To be continued Figure 8 A return spring 34 is provided between the push rod 35 and the round rod 29 so that the push rod 35 returns to its original position after being released from clamping and drives multiple arc-shaped clamping blocks 32 to retract.

[0045] Preferred options are shown in the appendix. Figure 7 Appendix Figure 13 The elastic support structure includes a hollow elastic element 24 and multiple elastic support components 25. The multiple elastic support components 25 are spaced apart in the hollow elastic element 24 along the extension direction of the arc-shaped clamp 26 to form multi-point elastic support for the arc-shaped clamp 26. The arc-shaped clamp 26 and the movable frame 23 are connected through the hollow elastic element 24.

[0046] Preferred options are shown in the appendix. Figure 7 Appendix Figure 13 The elastic support assembly 25 includes a pressure block 36, an elastic element 38, and a push plate 39. When the pressure block 36 is pressed and moves, the push plate 39 drives the elastic element 38 to separate relative to each other along an arc-shaped trajectory, thereby changing the support position of the arc-shaped clamp 26. One end of the pressure block 36 is connected to the radial inner side of the hollow elastic element 24, and a spring 37 is provided between the other end of the pressure block 36 and the radial outer side of the hollow elastic element 24.

[0047] Preferred options are shown in the appendix. Figure 1 Appendix Figure 2 Appendix Figure 7 The two ends of the worktable 11 are connected to the first turntable 13 and the second turntable 15 respectively. The first turntable 13 and the second turntable 15 are rotatably mounted on the first fixed base 12 and the second fixed base 14 respectively. The second turntable 15 is connected to the output end of the stepper motor 16. An expansion member 51 is provided between the arc-shaped rubber part 27 and the arc-shaped clamp 26. The expansion member 51 is connected to the hollow elastic member 24 so as to push the arc-shaped rubber part 27 to swing when the arc-shaped clamp 26 is pressed.

[0048] Preferred options are shown in the appendix. Figure 6 Appendix Figure 8 Appendix Figure 11 The slider 18 is connected to the interior of the housing 17 by a second elastic water bladder 48 and a tension spring 49. The interior of the first fixed seat 12 is provided with an annular cavity 40. A guide ring 41 is fixed inside the annular cavity 40. The distance between the inner wall of the guide ring 41 and the outer wall of the first turntable 13 gradually decreases from bottom to top. The outer wall of the first turntable 13 is provided with a first elastic water bladder 42. The first elastic water bladder 42 moves within the annular cavity 40. The middle of the first turntable 13 is provided with a through hole 43. The through hole 43 communicates with the interior of the first elastic water bladder 42 through a first connecting channel 44. The interior of the worktable 11 is provided with a cavity 47. One end of the through hole 43 is provided with a block 45. The other end of the through hole 43 communicates with the cavity 47 through a second connecting channel 46. The second elastic water bladder 48 communicates with the cavity 47.

[0049] Specific usage of this invention: During assembly, the engine support shock absorber 50 is first placed upside down into the tooling fixture, with its protruding connecting ring serving as the main positioning point. The hydraulic telescopic cylinder 21 is activated, causing it to retract and move the movable ring 19 downwards. During this downward movement, the movable ring 19 pulls two sliders 18 radially inwards along the housing 17 via two connecting pieces 20. Simultaneously, the two sliders 18 drive the corresponding movable block 22, movable frame 23, and arc-shaped clamp 26 to move closer together.

[0050] As the two movable frames 23 move inward, the limiting frame 28, the round rod 29 and the slip ring 30 located at the lower part of the movable frame 23 move towards the connecting ring of the engine support shock absorber 50 simultaneously. The two slip rings 30 abut against the axial end faces of the connecting ring on both sides respectively, forming an axial clamp on the outer side of the connecting ring. At the same time, the compression spring 31 is compressed in this process, thereby providing a continuous preload force for the slip ring 30 to maintain a stable clamping effect on the outer side of the connecting ring.

[0051] As the two round rods 29 continue to approach each other, they insert themselves into the connecting ring from both axial sides, pushing the corresponding push rods 35 closer together. Once the two push rods 35 are in contact, the two round rods 29 continue to approach, causing the push rods 35 to slide axially relative to the round rods 29. The push rods 35, through the connecting plate 33, drive multiple arc-shaped clamping blocks 32 to simultaneously open radially outward. These arc-shaped clamping blocks 32 abut against the inner wall of the connecting ring, thus providing support and clamping to the inner side of the connecting ring. Therefore, the clamping of the outer side of the connecting ring by the slip ring 30 and the clamping of the inner wall of the connecting ring by the arc-shaped clamping blocks 32 work together to achieve dual internal and external positioning and fixation of the connecting ring, ensuring a stable installation reference for the engine support shock absorber 50 during the initial assembly stage.

[0052] While the connecting ring is clamped and fixed, the two arc-shaped clamps 26 and the arc-shaped rubber parts 27 on them continue to move closer to the outer periphery of the damping spring of the engine support shock absorber 50, thereby limiting and clamping the damping spring. Since the outer periphery of the damping spring has a ring structure, in order to avoid the problems of local force concentration and unstable limiting caused by traditional single-sided clamping, this solution uses the arc-shaped clamps 26 and the arc-shaped rubber parts 27 to limit the outer periphery of the damping spring by arc surface contact. In addition, the expansion member 51 is set between the upper part of the arc-shaped rubber part 27 and the arc-shaped clamps 26, so that the upper part of the arc-shaped rubber part 27 has a basis for further inward compensation of swing, thereby improving the limiting ability of the upper area of ​​the damping spring and reducing the shaking or displacement of the engine support shock absorber 50 during assembly. Thus, while the connecting ring is clamped, the damping spring is also simultaneously limited, preventing the damping spring from deflecting, shifting, rebounding or being over-compressed during subsequent assembly.

[0053] Furthermore, the arc-shaped clamp 26 itself possesses a certain degree of flexibility. Even after the inner wall of the arc-shaped clamp 26 contacts and abuts against the outside of the engine-supported shock absorber 50, the movable frame 23 can continue to move inward, thereby compressing the hollow elastic element 24. The compressed hollow elastic element 24 drives the pressure block 36 to move and compresses the spring 37, using the elastic restoring force of the spring 37 to support the middle of the arc-shaped clamp 26. Simultaneously, as the pressure block 36 moves, it drives the two elastic elements 38 to move away from each other along an arc-shaped trajectory within the hollow elastic element 24 via the two push plates 39, causing a change in the support position for the arc-shaped clamp 26. In this way, the pressure block 36 and the two elastic elements 38 can form multi-point distributed elastic support for the arc-shaped clamp 26, allowing the arc-shaped clamp 26 and the arc-shaped rubber element 27 to better conform to the annular outer contour of the shock absorber spring, thereby achieving a curved surface fit and clamping around the outer periphery of the shock absorber spring. This structure allows the tooling fixture to adapt to the size differences of different specifications of engine support shock absorbers 50 within a certain range, improving the versatility and assembly stability of the fixture.

[0054] After the connecting ring and damping spring are reliably clamped and limited, the base, movable rod, and related connecting parts in the engine support shock absorber 50 are then aligned and assembled, gradually forming a predetermined assembly relationship between the movable rod and the base, and completing the installation process to cooperate with the damping spring. Since the engine support shock absorber 50 is now synchronously constrained by the connecting ring and damping spring, the alignment accuracy and assembly efficiency in subsequent assembly processes can be effectively improved.

[0055] During assembly, if it is necessary to adjust the assembly posture of the engine support shock absorber 50, the stepper motor 16 is started. The stepper motor 16 drives the second turntable 15 to rotate, which in turn drives the worktable 11 and the first turntable 13 to rotate synchronously, thereby adjusting the overall angle of the engine support shock absorber 50. When the first turntable 13 rotates, the first elastic water bladder 42 set on its outer side moves in the annular cavity 40 and is gradually deformed under the guiding and squeezing action of the guide ring 41, so as to increase the friction between the first elastic water bladder 42 and the guide ring 41, thereby making the worktable 11 more stable during the rotation and angle adjustment process.

[0056] Simultaneously, after the first elastic water bladder 42 is compressed, the liquid inside it enters the through hole 43 through the first connecting channel 44, and then is transported to the two second elastic water bladders 48 through the second connecting channel 46 and the cavity 47, causing the two second elastic water bladders 48 to expand. After the second elastic water bladders 48 expand, they respectively provide a supporting effect on the two sliders 18, so as to inhibit the sliders 18 from radially moving outward under the action of the tension spring 49, prevent the tooling fixture from having a tendency to retreat during posture changes or force changes, maintain clamping stability, and thus ensure that the connecting ring clamping structure can still maintain a stable locked state during angle changes.

[0057] Furthermore, as the movable frame 23 continues to press inward and the arc-shaped clamp 26 is pressed against by the engine support shock absorber 50, the gas inside the hollow elastic element 24 can enter the expansion element 51, causing the expansion element 51 to expand and push the upper part of the arc-shaped rubber element 27 to swing inward. Thus, the arc-shaped rubber element 27, based on the original radial clamping, further enhances its limiting effect on the upper region of the shock absorber spring, ensuring that it maintains good fit and limiting effect even when the posture of the engine support shock absorber 50 changes. This achieves clamping compensation of the tooling fixture during angle adjustment, ensuring that the engine support shock absorber 50 maintains stable positioning and reliable limiting under different assembly postures.

[0058] After all components of the engine support shock absorber 50 are assembled, the hydraulic telescopic cylinder 21 is controlled to reverse, causing the movable ring 19 to reset, which in turn drives the two sliders 18, the movable block 22, and the movable frame 23 to return to their outward positions. At the same time, the push rod 35 retracts under the action of the return spring 34, and multiple arc-shaped clamps 32 retract inward and exit from the inner side of the connecting ring. The slip ring 30 releases its clamping on the outer side of the connecting ring, and the arc-shaped clamp 26 and the arc-shaped rubber part 27 release their limiting effect on the shock absorber spring. Finally, the assembled engine support shock absorber 50 is removed from the tooling fixture, completing the overall assembly process.

[0059] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An auxiliary assembly device for an engine support shock absorber, comprising a base plate (10), wherein a worktable (11) is rotatably mounted on the base plate (10), characterized in that, Also includes: The tooling fixture is set on the workbench (11). The tooling fixture includes a housing (17), two sets of clamping components and a driving mechanism. The driving mechanism is used to drive the two sets of clamping components to move closer to each other or further away from each other. Each clamping assembly includes an outer clamping part, an inner clamping part, and an arc-shaped limiting part. The outer clamping part is used to abut against the outer side of the connecting ring at the protruding end of the engine support shock absorber (50). The inner clamping part is used to extend into the connecting ring and expand outward to abut against the inner wall of the connecting ring. The arc-shaped limiting part is used to abut against the outer periphery of the shock-absorbing spring of the engine support shock absorber (50). An elastic support structure is disposed between the clamping assembly and the arc-shaped limiting part, so that the arc-shaped limiting part undergoes elastic deformation relative to the clamping assembly during the clamping process and adapts to the outer contour of the shock-absorbing spring.

2. The auxiliary assembly device for an engine support shock absorber according to claim 1, characterized in that: The driving mechanism includes a vertically movable ring (19) and a hydraulic telescopic cylinder (21) that drives the movable ring (19) to rise and fall. The movable ring (19) is connected to two sets of clamping assemblies through connectors (20) so that when the movable ring (19) moves, it drives the two sets of clamping assemblies to move towards each other or away from each other synchronously.

3. The auxiliary assembly device for an engine support shock absorber according to claim 1, characterized in that: The clamping assembly includes a slider (18), a movable block (22), and a movable frame (23). The slider (18) is radially slidably disposed within the housing (17). The movable block (22) is fixedly disposed on the slider (18). The movable frame (23) is disposed on the movable block (22). The arc-shaped limiting part is disposed on the movable frame (23).

4. The auxiliary assembly device for an engine support shock absorber according to claim 1, characterized in that: The outer clamping part includes a round rod (29) and a slip ring (30) slidably disposed on the outside of the round rod (29). The slip ring (30) is used to abut against the axial end face of the connecting ring, and a compression spring (31) is provided between the slip ring (30) and the limiting frame (28) to keep the slip ring (30) holding the clamping preload.

5. The auxiliary assembly device for an engine support shock absorber according to claim 1, characterized in that: The inner clamping part includes a plurality of arc-shaped clamping blocks (32) disposed on the round rod (29), a top rod (35) disposed inside the round rod (29), and a connecting plate (33) connecting the top rod (35) and the plurality of arc-shaped clamping blocks (32). When the top rod (35) moves relative to the round rod (29), it drives the plurality of arc-shaped clamping blocks (32) to open radially outward to abut against the inner wall of the connecting ring.

6. The auxiliary assembly device for an engine support shock absorber according to claim 5, characterized in that: A return spring (34) is provided between the top rod (35) and the round rod (29) so that the top rod (35) resets after being released from clamping and drives the multiple arc-shaped clamps (32) to retract.

7. The auxiliary assembly device for an engine support shock absorber according to claim 1, characterized in that: The arc-shaped limiting part includes an arc-shaped clamp (26) and an arc-shaped rubber part (27) disposed on the arc-shaped clamp (26). The arc-shaped rubber part (27) is disposed toward the shock-absorbing spring. The arc-shaped clamp (26) can be elastically deformed so that the arc-shaped rubber part (27) abuts against the outer arc surface of the shock-absorbing spring.

8. The auxiliary assembly device for an engine support shock absorber according to claim 7, characterized in that: The elastic support structure includes a hollow elastic element (24) and a plurality of elastic support components (25). The plurality of elastic support components (25) are spaced apart in the hollow elastic element (24) along the extension direction of the arc-shaped clamp (26) to form multi-point elastic support for the arc-shaped clamp (26).

9. An auxiliary assembly device for an engine support shock absorber according to claim 8, characterized in that: The elastic support assembly (25) includes a pressure block (36), an elastic element (38), and a push plate (39). When the pressure block (36) is pressed and moves, the push plate (39) drives the elastic element (38) to separate relative to each other along an arc-shaped trajectory, thereby changing the support position of the arc-shaped clamp (26). One end of the pressure block (36) is connected to the radial inner side of the hollow elastic element (24), and the other end of the pressure block (36) is connected to the radial outer side of the hollow elastic element (24) by a spring (37).

10. An auxiliary assembly device for an engine support shock absorber according to claim 9, characterized in that: The two ends of the workbench (11) are respectively connected to the first turntable (13) and the second turntable (15). The first turntable (13) and the second turntable (15) are rotatably mounted on the first fixed seat (12) and the second fixed seat (14). The second turntable (15) is connected to the output end of the stepper motor (16). An expansion member (51) is provided between the arc-shaped rubber part (27) and the arc-shaped clamp (26). The expansion member (51) is connected to the hollow elastic part (24) so ​​as to push the arc-shaped rubber part (27) to swing when the arc-shaped clamp (26) is pressed.

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