A seal ring assembly mechanism and method

Abstract

The application discloses a sealing ring assembling mechanism and method, and belongs to the technical field of sealing ring assembling. The sealing ring assembling mechanism comprises an inclined material placing rack, shaft bodies of sealing ring bodies to be assembled are arranged in sequence along the inclined surface of the material placing rack, and the sealing ring assembling mechanism further comprises a material storage shell fixed on one side of the material placing rack, a pushing and assembling assembly arranged on one side of the material placing rack, an anti-deviation assembly arranged on the material storage shell, and a diameter expanding assembly arranged on the side of the material storage shell away from the pushing and assembling assembly. Through the inclined rack and the automatic material supplementing structure, the shaft bodies are loaded in a rhythmic manner; the pushing and assembling assembly and the anti-deviation assembly are used to clamp and push the sealing ring from both sides, so that the sealing ring is effectively prevented from being deformed due to deviation during movement; meanwhile, the diameter expanding assembly is linked, the sealing ring can be uniformly and synchronously expanded, the sealing ring can be smoothly sleeved on the shaft body and accurately positioned in the mounting groove, the assembling process is automatic and linked, and the rapid, lossless and high-precision automatic assembling of the sealing ring is realized.

Description

Technical Field

[0001] This invention relates to the field of sealing ring assembly technology, and in particular to a sealing ring assembly mechanism and method. Background Technology

[0002] In industrial manufacturing, the assembly of shaft parts with sealing rings is a common process. Currently, this process largely relies on manual operation, where workers must forcefully open the highly elastic sealing ring, then slip it onto the shaft and push it into the designated mounting slot. This operating mode has several drawbacks: First, production efficiency is limited by the worker's skill level and physical strength, resulting in slow assembly speeds that cannot meet the demands of mass production. Second, for smaller or thicker, highly elastic sealing rings, opening them by hand is difficult, and uneven force can easily lead to plastic deformation or even damage, affecting the product's sealing reliability and posing operational safety hazards. Furthermore, the consistency of manual assembly is poor; the sealing ring's placement in the mounting slot is difficult to guarantee uniformity, potentially compromising the quality stability of the final product.

[0003] To improve efficiency, some automation solutions have been proposed, but most focus on simple pushing or robotic gripping. However, these solutions often have the following problems when dealing with flexible and easily deformable seals: First, during pushing or transferring, the seal lacks effective lateral restraint, making it prone to skewing and twisting, resulting in inaccurate alignment with the shaft; second, during assembly, there is a lack of a mechanism for controllable and uniform expansion of the seal, making it difficult for it to slide smoothly over the shaft end, which is larger than the natural inner diameter of the seal; third, the degree of automation in loading and unloading is insufficient, and the timing control of workpiece interception and release is inaccurate, affecting the smoothness of continuous operation. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a sealing ring assembly mechanism and method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A sealing ring assembly mechanism includes an inclined feeding rack, wherein the shafts of the sealing ring bodies to be assembled are arranged sequentially along the inclined surface of the feeding rack, and further includes:

[0007] The storage shell is fixed on one side of the feeding rack and is used to store the sealing ring body to be assembled;

[0008] The push assembly assembly is located on one side of the feeding rack and is used to push the sealing ring body at the bottom of the storage shell out of the storage shell and send it to the mounting groove of the shaft.

[0009] An anti-deviation component is installed on the storage shell and works with the push assembly component to limit the sealing ring body when it is pushed and assembled.

[0010] And an expansion component, which is located on the side of the storage shell away from the push assembly component, and the side away from the storage shell is in contact with the shaft of the sealing ring body to be assembled, for expanding the diameter of the sealing ring body when it is pushed out of the storage shell.

[0011] The end of the feeding rack is also equipped with a feeding mechanism, which is used to alternately release and intercept the shaft at the end of the feeding rack.

[0012] Preferably, the storage shell has an opening on the side away from the push assembly, and a circular plate is provided at the opening. An annular groove for the movement of the sealing ring body is formed between the outer wall of the circular plate and the inner wall of the opening.

[0013] The storage shell is fixedly provided with two sets of upper and lower connecting components for positioning the circular plate on one side of the push assembly assembly.

[0014] Preferably, each of the connecting components includes an electric push rod disposed on the storage shell, an electromagnet fixedly connected to the telescopic end of the electric push rod, and a permanent magnet fixed on the circular plate and cooperating with the electromagnet.

[0015] Preferably, the push assembly includes a mounting base fixed on the feeding rack, a hydraulic cylinder fixedly connected to the mounting base, and a pusher connected to the piston rod of the hydraulic cylinder. The pusher moves against the side of the sealing ring body near the push assembly.

[0016] Preferably, the pushing component includes a connecting plate fixedly connected to the piston rod of the hydraulic cylinder, a plurality of connecting rods evenly arranged on the connecting plate in a circular pattern, an arc-shaped plate fixedly connected to the connecting rods, and a first abutting plate fixedly connected to the arc-shaped plate via a first elastic telescopic rod.

[0017] Preferably, the anti-deviation assembly includes a second elastic telescopic rod fixedly connected to the feeding frame via a connecting plate, an annular plate fixedly connected to the second elastic telescopic rod and located within the annular groove, and a second abutment plate fixedly connected to the annular plate via a third elastic telescopic rod.

[0018] Preferably, the diameter expansion assembly includes a side plate fixedly connected to the circular plate by a connecting rod, a plurality of swing plates arranged in a uniformly circumferential rotation on the side plate, a hinge member hinged to the swing plates, and a force-bearing plate connected to all the hinge members.

[0019] The pushing component also includes a fourth elastic telescopic rod fixedly connected to the connecting plate and a push plate fixedly disposed at the end of the fourth elastic telescopic rod and moving against the force plate.

[0020] Preferably, the hinge includes a slider slidably connected to the side plate, a first connecting rod hinged between the slider and the force plate, and a second connecting rod hinged between the slider and the corresponding swing plate. The side plate is provided with a groove for the slider to slide, and a spring is provided between the inner wall of the groove and the slider.

[0021] Preferably, the feeding mechanism includes a support plate fixed to the bottom of the feeding rack, a drive motor fixedly connected to the support plate, a rotating rod connected to the output shaft of the drive motor and rotatably mounted on the support plate, a housing fixedly connected to both sides of the rotating rod, a movable plate connected by a spring and sliding inside the housing, and a baffle seat hinged to the movable plate by a connecting plate and slidably mounted on the feeding rack.

[0022] This invention also discloses a sealing ring assembly method, which involves assembling a sealing ring using the aforementioned sealing ring assembly mechanism, and includes the following steps:

[0023] S1: The elastic sealing ring body to be assembled is vertically stacked into the storage shell, and the connecting components on the upper and lower sides are alternately attracted to each other, which fixes the round plate on one side and forms an annular channel on the other side of the storage shell.

[0024] Multiple shafts to be assembled are placed sequentially on the high end of the inclined feeding rack, and the shafts automatically slide down and line up under the action of gravity.

[0025] S2: When the shaft slides to the end of the feeding rack, it is intercepted by the first stop of the feeding mechanism and precisely positioned at the assembly station, with its end facing the outlet of the storage shell.

[0026] The drive motor of the feeding mechanism drives the rotating rod to rotate. Through the linkage of the springs of the outer shell and the movable plate, the two baffle seats are controlled to rise and fall, realizing the automatic cycle of intercepting the shaft to be installed and releasing the shaft that has been installed, thus providing a basis for continuous production.

[0027] S3: The hydraulic cylinder of the push assembly component is activated, pushing the connecting plate forward, and the first abutment plate at the front end of the connecting rod contacts and pushes the sealing ring body at the bottom of the storage shell;

[0028] At the same time, the second abutment plate of the anti-displacement component applies a supporting force from the other side of the sealing ring body. The clamping method from both sides prevents the flexible sealing ring from tilting or twisting due to unilateral force in the initial push phase.

[0029] During the pushing process, the connecting rod simultaneously prevents the sealing ring body inside the storage shell from falling, thus achieving single-piece separation;

[0030] S4: After the sealing ring is pushed out of the storage shell, it enters the expansion assembly area under the escort of the two side abutment plates. As the pusher continues to move forward, the push plate at the end of the fourth elastic telescopic rod on it begins to contact and push the force plate. The force plate moves towards the side plate and pushes the slider to slide in the groove through the first connecting rod. The slider then drives the swing plate to swing outward synchronously through the second connecting rod, forming a trumpet-shaped guide expansion channel with a large opening and a small tail. The abutment plates on both sides compress the elastic telescopic rods connected to them and continue to hold the expanded sealing ring. The sealing ring body is uniformly and controllably expanded radially, and the inner diameter increases, so that it can be fitted into the end of the shaft. The abutment plates on both sides make it slide smoothly along the outer surface of the shaft until the sealing ring body is accurately pushed to the mounting groove position on the shaft. Under the action of its own elastic restoring force, the sealing ring body automatically contracts and is tightly locked into the mounting groove, completing the assembly.

[0031] S5: The hydraulic cylinder retracts, all actuators are reset under the action of the elastic element, and the swing plate of the expansion assembly is retracted under the action of the spring, restoring the initial state;

[0032] S6: After assembly is completed, the feeding mechanism operates again, releasing the assembled shaft and allowing it to slide into the finished product area. At the same time, it intercepts the next shaft to enter the assembly station. The system automatically repeats the above operation to achieve continuous production.

[0033] Compared with the prior art, the present invention provides a sealing ring assembly mechanism and method, which has the following beneficial effects:

[0034] 1. This invention, through the linkage of the inclined feeding rack and the feeding mechanism, realizes automatic sorting, precise positioning and rhythmic conveying of shafts. The sequential action of the pushing, anti-deviation and diameter expansion components completes the automatic material picking, centering, expansion and assembly of the sealing ring. The whole process requires little manual intervention and realizes a closed-loop automated production line operation from workpiece loading to finished product unloading, which greatly improves production efficiency and capacity and is suitable for large-scale standardized production scenarios.

[0035] 2. This invention addresses the issue of the easily deformable nature of sealing rings by designing a symmetrical clamping and pushing mechanism with a collaborative anti-deviation mechanism. Throughout the pushing process, the sealing ring is balanced by elastic abutment plates on both sides, effectively preventing skewing and plastic deformation caused by unilateral force. The linkage expansion mechanism ensures that the sealing ring is expanded uniformly and coaxially, and smoothly fed into the installation groove, achieving high-precision, damage-free interference fit assembly, significantly improving product qualification rate and consistency.

[0036] 3. In this invention, each functional module is linked through a mechanical structure. The linear motion of the pushing component directly triggers the radial expansion of the diameter expansion mechanism. The feeding mechanism converts a single rotary input into alternating linear motion of two feed stops. The system relies on physical position and mechanical interlock to realize the action logic, avoiding complex sensors and electronic control programs. It has strong anti-interference ability and can still operate stably in industrial vibration and oily environments with a low failure rate.

[0037] 4. In this invention, multiple elastic telescopic rods and springs are used in the mechanism to provide a certain floating margin for each actuator end (such as the abutment plate and the push plate). This can automatically compensate for workpiece size tolerances, positioning errors, and individual elasticity differences of the sealing rings, avoiding jamming or hard impacts. By adjusting the size of the components, the mechanism can adapt to sealing rings and shafts of different specifications within a certain size range, and has good process compatibility. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the structure of the present invention;

[0039] Figure 2 This is a schematic diagram of the outer structure of the bottom of the storage shell of the present invention;

[0040] Figure 3 for Figure 2 Another structural diagram from another perspective;

[0041] Figure 4 This is a schematic cross-sectional view of the bottom of the storage shell of the present invention;

[0042] Figure 5 for Figure 4 Enlarged structural diagram of section A in the middle;

[0043] Figure 6 This is a schematic diagram of the bottom structure of the storage shell of the present invention;

[0044] Figure 7 This is a schematic diagram of the structure of the pusher component of the present invention;

[0045] Figure 8 This is a schematic diagram of the anti-offset component of the present invention;

[0046] Figure 9 This is a cross-sectional structural diagram of the diameter expansion component of the present invention;

[0047] Figure 10 This is a schematic diagram of the structure of the swing plate of the present invention when it is open;

[0048] Figure 11 This is a partial structural schematic diagram of the feeding mechanism of the present invention.

[0049] In the diagram: 1. Feeding rack; 2. Sealing ring body; 3. Shaft; 301. Mounting groove; 4. Storage shell; 5. Circular plate; 6. Electric push rod; 601. Electromagnet; 602. Permanent magnet; 7. Mounting base; 701. Hydraulic cylinder; 702. Pushing component; 7021. Connecting plate; 7022. Connecting rod; 7023. Arc plate; 7024. First elastic telescopic rod; 7025. First abutment plate; 8. Second elastic telescopic rod 801. Annular plate; 802. Third elastic telescopic rod; 803. Second abutment plate; 9. Side plate; 901. Swing plate; 902. Force plate; 10. Fourth elastic telescopic rod; 1001. Push plate; 11. Slider; 111. First connecting rod; 112. Second connecting rod; 12. Slide groove; 13. Support plate; 131. Drive motor; 132. Rotating rod; 133. Outer shell; 134. Movable plate; 135. Stop seat. Detailed Implementation

[0050] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0051] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this 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. Therefore, they should not be construed as limitations on this invention.

[0052] like Figures 1 to 4 As shown, this embodiment proposes a sealing ring assembly mechanism, including an inclined feeding rack 1, with shafts 3 of the sealing ring bodies 2 to be assembled arranged sequentially along the inclined surface of the feeding rack 1. The inner walls on both sides of the feeding rack 1 should be adapted to the pipe diameter and length of the shafts 3, but with a certain sliding clearance. It also includes: a storage shell 4 fixed to one side of the feeding rack 1 for storing the sealing ring bodies 2 to be assembled; and a pushing assembly component disposed on one side of the feeding rack 1 for pushing the sealing ring body 2 at the bottom of the storage shell 4 out of the storage shell 4 and sending it to the shafts 3. The installation slot 301; an anti-offset component is provided on the storage shell 4, which cooperates with the push assembly component to limit the sealing ring body 2 when it is pushed and assembled; and an expansion component is provided on the side of the storage shell 4 away from the push assembly component, and the side away from the storage shell 4 is movable against the shaft 3 of the sealing ring body 2 to be assembled, which is used to expand the diameter of the sealing ring body 2 when it is pushed out of the storage shell 4; wherein, the end of the feeding rack 1 is also provided with a feeding mechanism, which is used to alternately release and intercept the shaft 3 at the end of the feeding rack 1;

[0053] Specifically, the operator places multiple shafts 3 sequentially into the high end of the inclined feeding rack 1. Under gravity, the shafts 3 automatically slide downwards and arrange themselves in a queue. Simultaneously, multiple sealing ring bodies 2 are inserted into the storage shell 4. When the shaft 3 at the front of the queue reaches the end of the feeding rack 1, it is intercepted and stabilized in a predetermined position by the actuating component of the feeding mechanism. At this point, one end of the shaft 3 faces the outlet and expansion assembly of the storage shell 4. The pushing assembly component is activated, its actuating end moving forward to contact and push the sealing ring body 2 at the bottom of the storage shell 4. Simultaneously, the anti-deviation component operates, limiting the sealing ring from the other side to ensure it is pushed out straight without deviation, thus guaranteeing the stability and reliability of the pushing process. The pushed-out sealing ring enters the working area of ​​the expansion assembly during its movement. The expansion assembly actuates, appropriately enlarging the flexible sealing ring from the inside, making its inner diameter larger than the outer diameter of the shaft 3 end. Under the continuous pushing of the pushing assembly component, the already... The expanded diameter sealing ring is smoothly fitted onto the end of the shaft 3; the pushing assembly component continues to provide thrust, pushing the sealing ring forward along the outer surface of the shaft 3 until it is pushed to the designated mounting groove 301 position on the shaft 3. At this time, the sealing ring contracts under its own elasticity, restoring its original size, thus tightly locking into the mounting groove 301, completing the assembly; subsequently, the pushing assembly component, the anti-deviation component, and the expanded diameter component are all reset to their initial state. After assembly, the feeding mechanism is activated, executing the "release" function to remove the obstruction to the current shaft 3. The assembled shaft 3 slides out of the equipment along the inclined plane and enters the unloading area. At the same time, the feeding mechanism automatically switches to the "intercept" state to prevent subsequent shafts 3 from sliding down synchronously; then the feeding mechanism resets, releases the next shaft 3 in the queue, then blocks it again and positions it at the assembly station. The system automatically repeats the above steps to achieve continuous production; integrating automatic feeding, positioning, pushing, assembly, and unloading into one, a complete automated assembly line is constructed.

[0054] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in a preferred embodiment, based on the above method, the storage shell 4 has an opening on the side away from the push assembly assembly, and a circular plate 5 is provided at the opening. An annular groove for the movement of the sealing ring body 2 is formed between the outer wall of the circular plate 5 and the inner wall of the opening.

[0055] The storage shell 4 is fixedly provided with two sets of connecting components for positioning the circular plate 5 on one side of the push assembly assembly.

[0056] Furthermore, each connecting assembly includes an electric push rod 6 mounted on the storage shell 4, an electromagnet 601 fixedly connected to the telescopic end of the electric push rod 6, and a permanent magnet 602 fixed on the circular plate 5 and cooperating with the electromagnet 601. The connecting assembly is fixed by electromagnetic attraction rather than purely mechanical rigid locking. This connection method allows for quick and shock-free separation when needed. The electric push rod 6 provides precise position control to ensure that the electromagnet 601 can accurately align and engage with the permanent magnet 602.

[0057] Specifically, initially, the electromagnets 601 of both controllable connecting components are energized, generating magnetic force that attracts the permanent magnets 602 on the circular plate 5. At this time, the upper and lower electric push rods 6 are both extended, firmly pulling and fixing the circular plate 5 to the center of the opening of the storage shell 4 through magnetic force, forming a stable annular groove. The operator vertically inserts multiple sealing ring bodies 2 into the storage shell 4. The sealing rings fall under gravity, and the bottom sealing ring falls into and stays on the upper connecting component. Subsequently, the electromagnet 601 of the upper connecting component is de-energized, controlling the electric push rods 6 to retract, preventing them from... The sealing ring is prevented from descending to the bottom of the storage shell 4, but at this time the lower connecting assembly still maintains the connection between the circular plate 5 and the storage shell 4; as the bottom of the sealing ring passes the upper connecting assembly, the upper connecting assembly is energized and reset, so that the upper connecting assembly reconnects the circular plate 5 and the storage shell 4, and then the lower connecting assembly is de-energized and separated, which also prevents it from obstructing the descent of the sealing ring; after the sealing ring falls to the bottom of the storage shell 4, the lower connecting assembly is energized and reset, at which time both the upper and lower connecting assemblies are connected, and then the push assembly is controlled to push the sealing ring, which is now at the bottom of the storage shell 4, out of the annular groove.

[0058] like Figure 2 , Figure 3 , Figure 4 , Figure 7 and Figure 8 As shown, in a preferred embodiment, based on the above method, the push assembly further includes a mounting base 7 fixed on the feeding rack 1, a hydraulic cylinder 701 fixedly connected to the mounting base 7, and a pusher 702 connected to the piston rod of the hydraulic cylinder 701. The pusher 702 moves against the side of the sealing ring body 2 near the push assembly.

[0059] Furthermore, the pusher 702 includes a connecting plate 7021 fixedly connected to the piston rod of the hydraulic cylinder 701, a plurality of connecting rods 7022 evenly arranged on the connecting plate 7021 in a circular pattern, an arc-shaped plate 7023 fixedly connected to the connecting rods 7022, and a first abutting plate 7025 fixedly connected to the arc-shaped plate 7023 via a first elastic telescopic rod 7024.

[0060] Furthermore, the anti-deviation assembly includes a second elastic telescopic rod 8 fixedly connected to the feeding rack 1 via a connecting plate, an annular plate 801 fixedly connected to the second elastic telescopic rod 8 and located in an annular groove, and a second abutting plate 803 fixedly connected to the annular plate 801 via a third elastic telescopic rod 802.

[0061] Specifically, the hydraulic cylinder 701 is in a fully retracted state, the pusher 702 is in the rear position, and the second elastic telescopic rod 8 of the anti-deviation assembly is in a contracted state under its own elastic force, causing the annular plate 801 and the second abutment plate 803 to extend into the annular groove and be located outside the bottommost unused sealing ring; the hydraulic cylinder 701 is activated, the piston rod extends, and pushes the connecting plate 7021 and the entire pusher 702 to move horizontally towards the storage shell 4. The pusher 702 moves forward, and the multiple first abutment plates 7025 on it first contact the side of the bottommost sealing ring near the push assembly assembly. At this time, the sealing ring is simultaneously abutted by the first abutment plates 7025 and the second abutment plates 803 from both the front and rear sides, forming a preliminary "clamping" state; the hydraulic cylinder 701 continues to provide thrust, which is transmitted through the first abutment plates 8025 and the second abutment plates 803. Plate 7025 acts on the sealing ring, pushing the sealing ring to move horizontally along the annular groove. During the entire movement, the sealing ring is between the two abutment plates, preventing the sealing ring from tilting, rolling, or twisting due to unilateral pushing during movement. This ensures that the sealing ring maintains an ideal posture with its end face perpendicular to the direction of movement throughout the movement. When the sealing ring is completely pushed out of the annular groove of the storage shell 4 and enters the subsequent diameter expansion component area, the second elastic telescopic rod 8 is stretched and retracted to make room for the sealing ring to continue moving forward. After assembly, the hydraulic cylinder 701 retracts, pulling the pusher 702 to reset. The anti-deviation component automatically resets under the elastic force of its second elastic telescopic rod 8, allowing the annular plate 801 and the second abutment plate 803 to re-enter the annular groove, ready to support the next sealing ring.

[0062] like Figure 2 , Figure 3 , Figure 4 , Figure 9 and Figure 10 As shown, in a preferred embodiment, based on the above method, the diameter expansion assembly further includes a side plate 9 fixedly connected to the circular plate 5 by a connecting rod, a plurality of swing plates 901 arranged in a uniform circumferential rotation on the side plate 9, a hinge member hinged to the swing plates 901, and a force-bearing plate 902 connected to all the hinge members.

[0063] The pusher 702 also includes a fourth elastic telescopic rod 10 fixedly connected to the connecting plate 7021 and a push plate 1001 fixedly disposed at the end of the fourth elastic telescopic rod 10 and movingly abutting against the force plate 902.

[0064] Furthermore, the hinge includes a slider 11 slidably connected to the side plate 9, a first connecting rod 111 hinged between the slider 11 and the force plate 902, and a second connecting rod 112 hinged between the slider 11 and the corresponding swing plate 901. A groove 12 for sliding the slider 11 is provided on the side plate 9, and a spring is provided between the inner wall of the groove 12 and the slider 11.

[0065] Specifically, the hydraulic cylinder 701 is in the retracted state, the pusher 702 and the push plate 1001 at the end of the fourth elastic telescopic rod 10 are in the rear position, the diameter expansion assembly is in the retracted state, and all the swing plates 901 are arranged inward around their rotation axis and are in a closed position, forming a channel that gradually narrows relative to the inner diameter of the storage shell 4; the hydraulic cylinder 701 is activated, pushing the connecting plate 7021 forward, and the first abutment plate 7025 at the front end of the connecting rod 7022 contacts and pushes the sealing ring, so that it is smoothly pushed out of the annular groove of the storage shell 4 with the cooperation of the anti-deviation assembly; slightly after pushing the sealing ring, the front end of the fourth elastic telescopic rod 10... The push plate 1001 contacts the force plate 902 of the expansion assembly; as the hydraulic cylinder 701 continues to extend, the push plate 1001 begins to apply a thrust towards the side plate 9 to the force plate 902. The fourth elastic telescopic rod 10 is slightly compressed to ensure smooth transmission of the thrust. Under the action of the thrust, the force plate 902 moves towards the side plate 9. Since the force plate 902 is hinged to all the sliders 11 through multiple first connecting rods 111, the force plate 902 pushes all the first connecting rods 111, thereby dragging all the sliders 11 to overcome the elastic force of the springs in their respective slide grooves 12 and slide synchronously along the slide grooves 12. The sliders 11 move outward. The second connecting rod 112, which is hinged to it, pushes the corresponding swing plate 901. The swing plate 901 swings outward around its hinge point, that is, its free end expands away from the center. After all the swing plates 901 swing outward synchronously, their inner edges form a trumpet-shaped or cone-shaped expansion channel with a large opening and a small tail. At this time, the sealing ring, which is held and protected by the abutment plates on both sides, is expanded outward by the swing plate 901 that is flipped. The first elastic telescopic rod 7024 and the third elastic telescopic rod 802 are compressed, and the inner diameter of the sealing ring is expanded. This fundamentally solves the problem of uneven force and sealing ring distortion caused by manual or simple tool expansion. The problem of deformation or excessive local stress; the sealing ring slides along the gradually decreasing diameter of the opposite side plate 9 to the side plate 9. It should be noted that the diameter of the side plate 9 must be greater than or equal to the diameter of the end face of the shaft 3, so that the expanded sealing ring can be easily fitted into the end of the shaft 3; as the piston rod of the hydraulic cylinder 701 continues to extend, the expanded sealing ring continues to move along the outer wall of the shaft 3 under the clamping of the two abutment plates until it moves to the position of the mounting groove 301 corresponding to the shaft 3. At this time, the sealing ring overcomes the clamping force of the two abutment plates under its own elastic contraction and fits tightly in the mounting groove 301, completing the assembly of the sealing ring.

[0066] like Figure 1 and Figure 11As shown, in a preferred embodiment, based on the above method, the feeding mechanism further includes a support plate 13 fixed to the bottom of the feeding rack 1, a drive motor 131 fixedly connected to the support plate 13, a rotating rod 132 connected to the output shaft of the drive motor 131 and rotatably mounted on the support plate 13, a housing 133 fixedly connected to both sides of the rotating rod 132, a movable plate 134 connected by a spring and sliding inside the housing 133, and a baffle seat 135 hinged to the movable plate 134 and slidably mounted on the feeding rack 1. The baffle seat 135 is U-shaped.

[0067] Specifically, with Figure 11For example, initially, the stop 135 on the left side is higher than the inclined surface of the feeding rack 1. This stop 135 restricts the shaft 3 on the feeding rack 1 at the assembly station, preventing it from sliding down. Because the stop 135 is U-shaped, the side of the stop 135 closest to the second shaft 3 can separate the two shafts 3, preventing the sealing ring from sliding along the outer wall of the shaft 3 when it is subsequently pushed. At this time, the stop 135 on the right side is at a lower position relative to the inclined surface of the feeding rack 1 and does not restrict the second shaft 3. When a shaft 3 completes the sealing ring assembly at the station, the drive motor 131 receives a command and starts, driving the rotating rod 132 to rotate by a preset angle. The rotation of the rotating rod 132... The two outer shells 133 fixed on both sides rotate synchronously, exchanging their positions in space. The stop seat 135, which was originally in a "high" position relative to the placement surface of the feeding rack 1, turns to a "low" position, and the right stop seat 135, which was originally in a "low" position, turns to a "high" position. Since the stop seat 135 is restricted to moving up and down within the feeding rack 1, while the outer shell 133 is making circular motion, when the rotation trajectory of the outer shell 133 is inconsistent with the vertical movement trajectory required by the stop seat 135, the movable plate 134 will slide relative to the outer shell 133 it is on, and compress or stretch the spring connecting the two, so that the rotational motion can be smoothly converted into the movement of the stop seat 135 without jamming. After the position is adjusted, the left stop seat 135... The material holder 135 no longer restricts the assembled shaft 3, allowing it to slide down automatically under its own weight. Simultaneously, the right-side retainer 135 rises to the upper side of the unloading rack 1, restricting the remaining shafts 3 and preventing them from sliding down together without the sealing rings installed. After the assembled shafts 3 are unloaded, the drive motor 131 drives the rotating rod 132 to rotate in the opposite direction, causing the height positions of the left and right retainers 135 relative to the unloading rack 1 to be reversed again. The left retainer 135 gradually rises, and the right retainer 135 gradually descends. It should be noted that after the right retainer 135 no longer restricts the shaft 3, the left side of the U-shaped seat of the left retainer 135 will... First, it moves to the upper side of the placement surface and can intercept the shaft 3 that is sliding down without being restricted by the right side stop 135 (the two sides of the left side U-shaped stop 135 are at different heights. When the left side of the U-shaped stop moves out of the placement surface, the right side of the U-shaped stop has not yet moved out of the placement surface, so as to avoid the shaft 3 being intercepted by the right side of the U-shaped stop when it slides down the inclined placement surface and thus unable to enter the inner side of the U-shaped stop for assembly work. The right wall of the left side stop 135 and the left wall of the right side stop 135 are on the same plane). As the left side stop 135 continues to move upward, the right side of the U-shaped stop moves out of the inclined placement surface and separates the shaft 3 in the assembly position from the other shaft 3, thus avoiding the effective contact of the outer walls of the two shafts 3 and the subsequent pressing assembly work of the sealing ring.The alternating lifting and lowering of the upper and lower stop seats 135 is synchronously controlled by a single drive motor 131. Compared to solutions using two independent cylinders or linear motors, this significantly simplifies the structure and reduces costs, while achieving the same or even more reliable cycle control function.

[0068] This invention also discloses a sealing ring assembly method, which involves assembling a sealing ring using the aforementioned sealing ring assembly mechanism, and includes the following steps:

[0069] S1: The elastic sealing ring body 2 to be assembled is vertically stacked into the storage shell 4, and the connecting components on the upper and lower sides are alternately attracted to each other, which fixes the circular plate 5 on one side and forms an annular channel on one side of the storage shell 4 on the other side.

[0070] Multiple shafts 3 to be assembled are placed sequentially on the high end of the inclined feeding rack 1, and the shafts 3 automatically slide down and line up under the action of gravity.

[0071] S2: When the shaft 3 slides to the end of the feeding rack 1, it is intercepted by the first stop seat 135 of the feeding mechanism and is precisely positioned at the assembly station, with its end facing the outlet of the storage shell 4.

[0072] The drive motor 131 of the feeding mechanism drives the rotating rod 132 to rotate. Through the spring linkage of the outer shell 133 and the movable plate 134, the two baffle seats 135 are controlled to rise and fall, realizing the automatic cycle of intercepting the shaft body 3 to be installed and releasing the installed shaft body 3, providing a basis for continuous production.

[0073] S3: The hydraulic cylinder 701 of the push assembly component is activated, pushing the connecting plate 7021 forward, and the first abutting plate 7025 at the front end of the connecting rod 7022 contacts and pushes the sealing ring body 2 at the bottom of the storage shell 4.

[0074] At the same time, the second abutment plate 803 of the anti-displacement component applies a supporting force from the other side of the sealing ring body 2. The clamping method on both sides prevents the flexible sealing ring from tilting or twisting due to unilateral force in the initial push stage.

[0075] During the pushing process, the connecting rod 7022 simultaneously prevents the sealing ring body 2 inside the storage shell 4 from falling, thus achieving single-piece separation;

[0076] S4: After the sealing ring is pushed out of the storage shell 4, it enters the expansion assembly area under the escort of the abutment plates on both sides. As the pusher 702 continues to move forward, the push plate 1001 at the end of the fourth elastic telescopic rod 10 on it begins to contact and push the force plate 902. The force plate 902 moves towards the side plate 9 and pushes the slider 11 to slide in the slide groove 12 through the first connecting rod 111. The slider 11 then drives the swing plate 901 to swing outward synchronously through the second connecting rod 112, forming a trumpet-shaped guide expansion channel with a large opening and a small tail. The abutment plates on both sides compress the elastic telescopic rods connected to them and continue to hold the expanded sealing ring. The sealing ring body 2 is uniformly and controllably expanded radially, and the inner diameter increases, so that it can be fitted into the end of the shaft 3. The abutment plates on both sides make it slide smoothly along the outer surface of the shaft 3 until the sealing ring body 2 is accurately pushed to the mounting groove 301 position on the shaft 3. Under the action of its own elastic restoring force, the sealing ring body 2 automatically contracts and is tightly inserted into the mounting groove 301, completing the assembly.

[0077] S5: The hydraulic cylinder 701 retracts, all actuators are reset under the action of the elastic element, and the swing plate 901 of the expansion assembly is retracted under the action of the spring, restoring the initial state;

[0078] S6: After assembly is completed, the feeding mechanism will activate again to release the assembled shaft 3 and allow it to slide into the finished product area. At the same time, it will intercept the next shaft 3 to enter the assembly station. The system will automatically repeat the above operation to achieve continuous production.

[0079] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0080] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A seal ring assembling mechanism comprising an inclined feed rack (1) along which shafts (3) of seal ring bodies (2) to be assembled are arranged in sequence along the slope of the feed rack (1), characterized in that, Also includes: The storage shell (4) is fixed on one side of the feeding rack (1) and is used to store the sealing ring body (2) to be assembled. The push assembly is set on one side of the feeding rack (1) and is used to push the sealing ring body (2) of the bottommost side of the storage shell (4) out of the storage shell (4) and send it to the mounting groove (301) of the shaft (3); An anti-offset component is installed on the storage shell (4) and works with the push assembly component to limit its position when the sealing ring body (2) is pushed and assembled. And an expansion assembly is provided on the side of the storage shell (4) away from the push assembly assembly, and the side of the expansion assembly away from the storage shell (4) is in contact with the shaft (3) of the sealing ring body (2) to be assembled, for expanding the diameter of the sealing ring body (2) when it is pushed out of the storage shell (4). The end of the feeding rack (1) is also provided with a feeding mechanism, which is used to alternately release and intercept the shaft (3) at the end of the feeding rack (1).

2. The seal ring assembly mechanism of claim 1, wherein The storage shell (4) has an opening on the side away from the push assembly assembly, and a circular plate (5) is provided at the opening. An annular groove for the movement of the sealing ring body (2) is formed between the outer wall of the circular plate (5) and the inner wall of the opening. The storage shell (4) is fixed with two sets of upper and lower connecting components for positioning the circular plate (5) on one side of the push assembly assembly.

3. A seal ring assembly mechanism according to claim 2, wherein Each of the connecting components includes an electric push rod (6) mounted on the storage shell (4), an electromagnet (601) fixedly connected to the telescopic end of the electric push rod (6), and a permanent magnet (602) fixed on the circular plate (5) and cooperating with the electromagnet (601).

4. The seal ring assembly mechanism of claim 3, wherein The push assembly includes a mounting base (7) fixed on the feeding rack (1), a hydraulic cylinder (701) fixedly connected to the mounting base (7), and a pusher (702) connected to the piston rod of the hydraulic cylinder (701). The pusher (702) moves against the side of the sealing ring body (2) near the push assembly.

5. A seal ring assembly mechanism according to claim 4, wherein The pusher (702) includes a connecting plate (7021) fixedly connected to the piston rod of the hydraulic cylinder (701), a plurality of connecting rods (7022) evenly arranged on the connecting plate (7021) in a circular pattern, an arc plate (7023) fixedly connected to the connecting rods (7022), and a first abutting plate (7025) fixedly connected to the arc plate (7023) via a first elastic telescopic rod (7024).

6. A seal ring assembly mechanism according to claim 5, wherein The anti-deviation assembly includes a second elastic telescopic rod (8) fixedly connected to the feeding rack (1) via a connecting plate, an annular plate (801) fixedly connected to the second elastic telescopic rod (8) and located in the annular groove, and a second abutting plate (803) fixedly connected to the annular plate (801) via a third elastic telescopic rod (802).

7. A seal ring assembly mechanism according to claim 6, wherein The expansion assembly includes a side plate (9) fixedly connected to the circular plate (5) by a connecting rod, a number of swing plates (901) arranged in a uniform circumference on the side plate (9), a hinge member hinged to the swing plate (901), and a force plate (902) connected to all the hinge members. The pusher (702) also includes a fourth elastic telescopic rod (10) fixedly connected to the connecting plate (7021) and a push plate (1001) fixed at the end of the fourth elastic telescopic rod (10) and moving against the force plate (902).

8. A sealing ring assembly mechanism according to claim 7, characterized in that, The hinge includes a slider (11) slidably connected to the side plate (9), a first connecting rod (111) hinged between the slider (11) and the force plate (902), and a second connecting rod (112) hinged between the slider (11) and the corresponding swing plate (901). The side plate (9) is provided with a groove (12) for sliding the slider (11), and a spring is provided between the inner wall of the groove (12) and the slider (11).

9. A sealing ring assembly mechanism according to claim 8, characterized in that, The feeding mechanism includes a support plate (13) fixed at the bottom of the feeding rack (1), a drive motor (131) fixedly connected to the support plate (13), a rotating rod (132) connected to the output shaft of the drive motor (131) and rotatably mounted on the support plate (13), a housing (133) fixedly connected to both sides of the rotating rod (132), a movable plate (134) connected by a spring and sliding inside the housing (133), and a baffle seat (135) hinged to the movable plate (134) and slidably mounted on the feeding rack (1) via a connecting plate.

10. A method for assembling a sealing ring, comprising assembling it using a sealing ring assembly mechanism as described in claim 9, characterized in that, Includes the following steps: S1: The elastic sealing ring body (2) to be assembled is vertically stacked into the storage shell (4), and the connecting components on the upper and lower sides are alternately attracted to fix the round plate (5) on one side and form an annular channel on the other side of the storage shell (4). Multiple shafts (3) to be assembled are placed sequentially on the high end of the inclined feeding rack (1), and the shafts (3) automatically slide down and line up under the action of gravity; S2: When the shaft (3) slides to the end of the feeding rack (1), it is intercepted by the first stop (135) of the feeding mechanism and is precisely positioned at the assembly station, with its end facing the outlet of the storage shell (4); The drive motor (131) of the feeding mechanism drives the rotating rod (132) to rotate. Through the spring linkage of the outer shell (133) and the movable plate (134), the two baffle seats (135) are controlled to rise and fall, realizing the automatic cycle of intercepting the shaft body (3) to be installed and releasing the installed shaft body (3), providing a basis for continuous production. S3: The hydraulic cylinder (701) of the push assembly component is started, pushing the connecting plate (7021) forward, and the first abutting plate (7025) at the front end of the connecting rod (7022) contacts and pushes the sealing ring body (2) at the bottom of the storage shell (4). At the same time, the second abutment plate (803) of the anti-displacement component applies a supporting force from the other side of the sealing ring body (2). The clamping method on both sides prevents the flexible sealing ring from tilting or twisting due to unilateral force in the initial push stage. During the pushing process, the connecting rod (7022) simultaneously prevents the sealing ring body (2) inside the storage shell (4) from falling, thus achieving single-piece separation; S4: After the sealing ring is pushed out of the storage shell (4), it enters the expansion assembly area under the escort of the two side abutment plates. As the pusher (702) continues to move forward, the push plate (1001) at the end of the fourth elastic telescopic rod (10) on it begins to contact and push the force plate (902). The force plate (902) moves towards the side plate (9) and pushes the slider (11) to slide in the groove (12) through the first connecting rod (111). The slider (11) then drives the swing plate (901) to swing outward synchronously through the second connecting rod (112), forming a large mouth and a large tail. The small horn-shaped guide expansion channel, the abutment plates on both sides compress the elastic telescopic rods connected to them, and continue to hold the expanded sealing ring. The sealing ring body (2) is uniformly and controllably expanded radially, and the inner diameter increases, so that it can be fitted into the end of the shaft (3). The abutment plates on both sides make it slide smoothly along the outer surface of the shaft (3) until the sealing ring body (2) is accurately pushed to the mounting groove (301) position on the shaft (3). Under the action of its own elastic restoring force, the sealing ring body (2) automatically shrinks and is tightly inserted into the mounting groove (301) to complete the assembly. S5: The hydraulic cylinder (701) retracts, all actuators are reset under the action of the elastic element, and the swing plate (901) of the expansion assembly is retracted under the action of the spring, restoring the initial state; S6: After assembly, the feeding mechanism will move again to release the assembled shaft (3) and let it slide into the finished product area. At the same time, it will intercept the next shaft (3) to enter the assembly station. The system will automatically repeat the above operation to achieve continuous production.

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