Automatic assembling equipment for O-shaped sealing ring

Abstract

The invention discloses O-shaped sealing ring automatic assembling equipment, and relates to the technical field of mechanical automation equipment, the O-shaped sealing ring automatic assembling equipment comprises a working sliding rail, a transition temporary storage supporting claw, a material taking and charging clamping claw and an assembling rack, the transition temporary storage supporting claw comprises a mounting table and a multi-leg supporting claw, the mounting table is arranged on a material storing and taking station, and the multi-leg supporting claw is arranged on the mounting table; the multi-foot supporting claw comprises a plurality of supporting claws arranged at intervals in the circumferential direction, the material taking and charging clamping claw comprises a lifting hanging table and a multi-foot material taking claw, the lifting hanging table is movably hung on the working sliding rail, the multi-foot material taking claw is arranged on the lifting hanging table and comprises a plurality of outer hook claws arranged at intervals in the circumferential direction, and the outer hook claws are arranged on the lifting hanging table. The top connecting end of the outer hook claw is arranged on the lifting platform, and the bottom grabbing end of the supporting claw extends downwards and expands outwards in the radial direction. According to the automatic assembling equipment for the O-shaped sealing ring, the technical problem that in the prior art, the O-shaped sealing ring needs to be manually moved to a to-be-sealed structure, and consequently the assembling efficiency is low is solved.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical automation equipment, in particular to an automatic assembly device for an O-type sealing ring. Background Art

[0002] The O-ring is used for static sealing and reciprocating sealing to ensure the sealing of the container. It is often used in pressurized liquid environments. In the prior art, the O-ring is generally installed using an inner groove design. The inner groove is larger than the inner hole diameter of the O-ring. The O-ring needs to be installed in the inner groove position under compression / tension.

[0003] At present, the assembly of O-rings is mainly based on manual assembly line operations, which requires a lot of manpower and has low mechanization and automation levels, resulting in low assembly efficiency. In addition, since it is difficult to adjust the compressed O-ring to a specific posture, the O-ring cannot be stably installed in the inner groove when releasing external force in the inner groove, which can easily lead to assembly failure, thereby further reducing assembly efficiency.

[0004] In view of this, it is necessary to propose an O-ring automatic assembly device to solve or at least partially solve the problems existing in the prior art. Summary of the invention

[0005] The O-type sealing ring automatic assembly equipment provided by the present invention solves the existing technical problem that the O-type sealing ring needs to be manually moved to the structure to be sealed, resulting in low assembly efficiency.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0007] An O-ring automatic assembly device comprises a working slide rail, a transition temporary storage support claw, a material picking and loading clamping claw and an assembly stand. The assembly stand is provided with a material storage and picking station and a loading station. The working slide rail and the assembly stand are arranged relative to each other in the height direction. The transition temporary storage support claw comprises a mounting platform and a multi-legged support claw. The mounting platform is arranged on the material storage and picking station. The multi-legged support claw is arranged on the mounting platform. The multi-legged support claw comprises a plurality of support claws arranged at intervals along the circumferential direction. The bottom connecting end of the support claw is arranged on the mounting platform. The top supporting end of the support claw extends upward and is arranged to be radially inwardly contracted. The material picking and loading clamping claw comprises a lifting platform and a multi-legged material picking gripper. The lifting platform can be movably hung on the working slide rail. The multi-legged material picking gripper is arranged on the lifting platform. The multi-legged material picking gripper comprises a plurality of outer hook claws arranged at intervals along the circumferential direction. The top connecting end of the outer hook claw is arranged on the lifting platform. The bottom grabbing end of the support claw extends downward and is arranged to be radially outwardly expanded.

[0008] Furthermore, the material picking and loading clamp also includes a loading rod, and a plurality of loading rods are arranged on the lifting platform at intervals along the circumferential direction. The loading rods and the outer hook claws are staggered. The top connecting end of the loading rod is arranged on the lifting platform, and the bottom telescopic end of the loading rod is suspended downwardly, and the loading rod is a telescopic rod.

[0009] Furthermore, the outer hook claw comprises a mounting connection section and an outer hook hanging section which contracts radially inward and then bends outward.

[0010] Furthermore, the material picking and loading clamp also includes a material picking expansion and contraction device for driving the bottom grabbing end of the multi-legged material picking gripper to radially contract or expand outward. The material picking expansion and contraction device is arranged in the multi-legged material picking gripper, and the first end of the material picking expansion and contraction device is connected to the lifting platform, and the second end of the material picking expansion and contraction device is connected to the inner wall surface of the multi-legged material picking gripper.

[0011] Furthermore, the supporting claw comprises a radially outwardly expanding installation section, a radially contracting supporting end and a straight material guiding section which are arranged from bottom to top in height direction.

[0012] Furthermore, the O-ring automatic assembly equipment also includes a loading barrel, which can be movably hung on the working slide rail, and includes a hollow cylinder and a composite support ring. A feed filling port with a side opening is provided on the top of the loading barrel, and a circular ring groove is arranged on the inner wall surface of the hollow cylinder, and the circular ring groove is located below the feed filling port. The composite support ring includes an arc-shaped sub-ring and a radially movable driver, and the arc-shaped sub-ring is movably arranged in the circular ring groove along the radial direction, and one end of the radially movable driver is connected to the groove wall surface of the circular ring groove, and the other end of the radially movable driver is connected to the arc-shaped sub-ring.

[0013] Furthermore, a plurality of annular grooves are arranged at intervals along the height direction of the hollow cylinder, and the composite support rings and the annular grooves are arranged in one-to-one correspondence.

[0014] Furthermore, the loading barrel also includes a center positioning column, which adopts a magnetic positioning column, and the hollow cylinder adopts a magnetic cylinder. The center positioning column is suspended in the hollow cylinder and a sealing ring gap is left between the center positioning column and the inner wall surface of the hollow cylinder. The center positioning column is located below the feed filling port.

[0015] Furthermore, the O-ring automatic assembly equipment also includes a feeding pipe, on which a feeding chute is arranged, the feeding chute is arranged to be inclined downward vertically, and the downwardly inclined end of the feeding chute is connected to the feed filling port.

[0016] Furthermore, the working slide rail is a U-shaped steel structure with an open bottom. The two side walls of the working slide rail are respectively provided with sliding guide grooves, which are arranged along the extension direction of the working slide rail. The lifting platform is provided with a sliding hanging rail that cooperates with the sliding guide grooves.

[0017] The present invention has the following beneficial effects:

[0018] The O-ring automatic assembly equipment of the present invention comprises a working slide rail, a transition temporary storage support claw, a material picking and loading clamping claw and an assembly stand, wherein the material storage and picking station is arranged upstream of the loading station, the transition temporary storage support claw is arranged on the material storage and picking station, and the structure to be sealed is arranged on the loading station. When assembling the O-ring, the sealing ring to be installed can be temporarily stored on the material storage and picking station by the transition temporary storage support claw, and then the lifting platform and the multi-legged material picking claw are controlled to move so that the multi-legged material picking claw takes the sealing ring to be installed from the transition temporary storage support claw and moves it to the loading station. The O-ring automatic assembly equipment of the present invention solves the technical problem that the existing O-ring needs to be moved to the structure to be sealed manually, resulting in low assembly efficiency.

[0019] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0021] Figure 1 is a side view of an automatic O-ring assembly device in one embodiment of the present invention;

[0022] Figure 2 It is a structural schematic diagram of an O-ring automatic assembly device in one embodiment of the present invention in a first working state;

[0023] Figure 3 is a schematic structural diagram of an O-ring automatic assembly device in an embodiment of the present invention in a second working state;

[0024] Figure 4 yes Figure 1 Schematic diagram of the structure of the loading barrel.

[0025] Legend:

[0026] 100. O-ring automatic assembly equipment; 10. Working slide rail; 20. Transition temporary storage support claw;

[0027] 21. Mounting table; 22. Multi-legged supporting claws; 221. Support claws; 30. Material picking and loading clamps; 31. Lifting platform; 32. Multi-legged material grabbing claws; 321. External hook claws; 33. Loading rod; 40. Assembly stand; 50. Loading barrel; 51. Hollow cylinder; 52. Composite supporting ring; 53. Center positioning column; 60. Loading chute pipe; 70. Structure to be sealed; 80. Sealing ring to be installed. DETAILED DESCRIPTION

[0028] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] like Figure 1 , Figure 2 , Figure 3 as well as Figure 4As shown, an O-ring automatic assembly device 100 provided by the present invention includes a working slide rail 10, a transition temporary storage support claw 20, a material picking and loading clamping claw 30 and an assembly stand 40, wherein the assembly stand 40 is provided with a material storage and picking station and a loading station, the working slide rail 10 and the assembly stand 40 are arranged relative to each other in the height direction, the transition temporary storage support claw 20 includes a mounting platform 21 and a multi-legged support claw 22, the mounting platform 21 is arranged on the material storage and picking station, the multi-legged support claw 22 is arranged on the mounting platform 21, and the multi-legged support claw 22 includes a plurality of support claws 22 arranged at intervals along the circumferential direction. 21, the bottom connecting end of the claw 221 is arranged on the mounting platform 21, the top supporting end of the claw 221 extends upward and is arranged to be radially contracted inward, the material picking and loading clamp 30 includes a lifting platform 31 and a multi-legged material picking grab 32, the lifting platform 31 can be movably hung on the working slide rail 10, the multi-legged material picking grab 32 is arranged on the lifting platform 31, the multi-legged material picking grab 32 includes a plurality of outer hook claws 321 arranged at intervals along the circumferential direction, the top connecting end of the outer hook claw 321 is arranged on the lifting platform 31, and the bottom grabbing end of the claw 221 extends downward and is arranged to be radially expanded outward.

[0033] It can be understood that in the solution of the present invention, the assembly stand 40 is arranged with a material storage and retrieval station and a loading station. The material storage and retrieval station is located upstream of the loading station, the transition temporary storage support claw 20 is located on the material storage and retrieval station, and the structure to be sealed 70 is located on the loading station. In specific implementation, the multi-legged support claw 22 is set on the material storage and retrieval station through the mounting platform 21. The multi-legged support claw 22 passes through the sealing ring 80 to be installed from the inner cavity of the sealing ring 80 to be installed and supports the sealing ring 80 to be installed; the multi-legged material retrieval claw 32 is movably hung on the working slide rail 10 through the lifting platform 31. The lifting platform 31 drives the multi-legged material retrieval claw 32 to move to the material storage and retrieval station. At this time, the multi-legged material retrieval claw 32 is above the multi-legged support claw 22; the lifting platform 31 is movable in the height direction. The lifting platform 31 moves in the height direction and rises to the feeding height. At this time, the sealing ring 80 to be loaded is tensioned on the multi-legged material grabber 32 and is above the transition temporary storage support claw 20. The lifting platform 31 drives the multi-legged material grabber 32 and the sealing ring 80 to be loaded to move to the loading station.

[0034] The present invention provides an O-ring automatic assembly device 100, which comprises a working slide rail 10, a transition temporary storage support claw 20, a material picking and loading clamping claw 30 and an assembly stand 40. The material storage and picking station is arranged upstream of the loading station, the transition temporary storage support claw 20 is arranged on the material storage and picking station, and the structure to be sealed 70 is arranged on the loading station. When assembling the O-ring, the sealing ring 80 to be installed can be temporarily stored on the material storage and picking station by the transition temporary storage support claw 20, and then the lifting platform 31 and the multi-legged material picking claw 32 are controlled to move so that the multi-legged material picking claw 32 takes the sealing ring 80 to be installed from the transition temporary storage support claw 20 and moves it to the loading station. The O-ring automatic assembly device 100 of the present invention solves the technical problem that the existing O-ring needs to be moved to the structure to be sealed 70 manually, resulting in low assembly efficiency.

[0035] It can be understood that the lifting platform 31 can drive the multi-legged material grabber 32 to rise or fall and position.

[0036] Furthermore, the material taking and loading clamp 30 further includes a loading rod 33, a plurality of loading rods 33 are arranged on the lifting platform 31 at intervals along the circumferential direction, the loading rods 33 and the outer hook claws 321 are arranged in a staggered manner, the top connection end of the loading rod 33 is arranged on the lifting platform 31, the bottom telescopic end of the loading rod 33 is suspended downward, and the loading rod 33 is a telescopic rod. Optionally, the loading rod 33 is a hydraulic telescopic rod or an electric telescopic rod.

[0037] Furthermore, the outer hook claw 321 includes a mounting connection section and an outer hook hanging section that contracts radially inward and then bends outward.

[0038] Furthermore, the material picking and loading clamp 30 also includes a material picking expansion and contraction device for driving the bottom grabbing end of the multi-legged material picking grip 32 to radially contract or expand outward. The material picking expansion and contraction device is arranged in the multi-legged material picking grip 32. The first end of the material picking expansion and contraction device is connected to the lifting platform 31, and the second end of the material picking expansion and contraction device is connected to the inner wall surface of the multi-legged material picking grip 32.

[0039] Furthermore, the supporting claw 221 includes a radially outwardly expanding installation section, a radially contracting supporting end and a straight material guiding section which are arranged from bottom to top in height direction.

[0040] Optionally, the multi-legged supporting claws 22 and the multi-legged material grabbing claws 32 can be opened and closed, and the outer hook claws 321 clamp the top end in a ")" shape and the supporting claws 221 clamp the bottom end in a " " shape.

[0041] It can be understood that a plurality of claws 221 are arranged at intervals along the circumferential direction on the mounting platform 21, and a first material picking avoidance gap is left between adjacent claws 221; a plurality of outer hook claws 321 are arranged at intervals along the circumferential direction on the lifting platform 31, and a second material picking avoidance gap is left between adjacent outer hook claws 321. When picking materials, the outer hook claws 321 are vertically inserted into the first material picking avoidance gap, and the second material picking avoidance gap is used to avoid the claws 221; at the same time, when picking materials, the telescopic rod is retracted to be above the claws 221.

[0042] In a specific embodiment of the present invention, three support claws 221 are evenly spaced along the circumference on the mounting platform 21, three outer hook claws 321 and three telescopic rods are evenly spaced along the circumference on the lifting platform 31, and the outer hook claws 321 are arranged adjacent to the corresponding telescopic rods.

[0043] More preferably, the transition temporary storage support claw 20 also includes a support material expander and shrinker for driving the top support end of the multi-legged support claw 22 to radially shrink or expand outward. The support material expander and shrinker is arranged in the multi-legged support claw 22, and the first end of the support material expander and shrinker is connected to the mounting table 21, and the second end of the support material expander and shrinker is connected to the inner wall surface of the support claw 221.

[0044] It can be understood that in the present invention, the material taking expansion and contraction device drives the supporting claw 221 to undergo plastic deformation, retract or expand outward and position, and the material supporting expansion and contraction device drives the outer hook claw 321 to undergo plastic deformation, retract or expand outward and position.

[0045] In the present invention, by providing a material taking expansion and contraction device and a material supporting expansion and contraction device, it can not only be applicable to O-rings of different sizes, but also reduce the interference error generated during material taking and loading.

[0046] Furthermore, the O-ring automatic assembly equipment 100 also includes a loading barrel 50, which can be movably hung on the working slide rail 10. The loading barrel 50 includes a hollow cylinder 51 and a composite support ring 52. A feed filling port with a side opening is provided at the top of the loading barrel 50. A circular ring groove is arranged on the inner wall surface of the hollow cylinder 51, and the circular ring groove is located below the feed filling port. The composite support ring 52 includes an arc-shaped sub-ring and a radially movable driver. The arc-shaped sub-ring is movably arranged in the circular ring groove along the radial direction. One end of the radially movable driver is connected to the groove wall surface of the circular ring groove, and the other end of the radially movable driver is connected to the arc-shaped sub-ring.

[0047] Furthermore, a plurality of annular grooves are arranged at intervals along the height direction of the hollow cylinder 51 , and the composite support rings 52 are arranged in one-to-one correspondence with the annular grooves.

[0048] Furthermore, the loading barrel 50 further includes a center positioning column 53, which is a magnetic positioning column, and the hollow cylinder 51 is a magnetic cylinder. The center positioning column 53 is suspended in the hollow cylinder 51 and a sealing ring gap is left between the center positioning column 53 and the inner wall surface of the hollow cylinder 51, and the center positioning column 53 is located below the feed filling port. In the solution of the present invention, by providing the center positioning column 53, the O-type sealing ring is supported on the composite support ring 52 and loaded on the periphery of the center positioning column 53, which is conducive to ensuring the integrity of the O-type sealing ring and the order during loading.

[0049] Furthermore, the O-ring automatic assembly equipment 100 also includes a feeding pipe, on which a feeding chute is arranged, the feeding chute is arranged to be inclined downward vertically, and the downwardly inclined end of the feeding chute is connected to the feed filling port.

[0050] Furthermore, the working slide rail 10 is a U-shaped steel structure with an open bottom. The two side walls of the working slide rail 10 are respectively provided with sliding guide grooves, which are arranged along the extension direction of the working slide rail 10. The lifting platform 31 is provided with a sliding hanging rail that cooperates with the sliding guide grooves.

[0051] Optionally, the hollow cylinder 51 and the feeding tube may be cast as one piece, or may be processed by welding at a later time, or may be two independent parts that can be assembled by snapping.

[0052] The O-ring automatic assembly device 100 provided by the present invention, when storing materials, the O-ring enters the feeding filling port through the feeding chute of the feeding pipe and falls, and the composite support ring 52 in the hollow cylinder 51 opens and closes in sequence from bottom to top. By setting the composite support ring 52 to open and close asynchronously, and setting each upper layer to open and close later than the lower layer, the O-rings can be controlled to fall and fill the position one by one; when loading, the hollow cylinder 51 is controlled to be at the material storage and material retrieval station and directly above the transition temporary storage support claw 20, and then the composite support ring 52 is set to open, so that the O-ring falls and is supported on the transition temporary storage support claw 20 ; When taking materials, the hollow cylinder 51 is controlled to deviate from the material storage and taking station, the loading rod 33 shrinks to avoid it, and the material taking and loading clamp 30 is controlled to be directly above the multi-legged supporting claw 22 to take materials; then the O-ring is moved to the loading station; when loading, the material taking and loading clamp 30 is on the loading station, and the lifting platform 31 drives the multi-legged material taking claw 32 to descend, and the O-ring is synchronously descended to the loading height with the multi-legged material taking claw 32. At this time, the loading rod 33 extends and pushes the O-ring to fit the outer wall surface of the component to be sealed and move downward until it is stuck in the outer groove. After the automatic assembly of the O-ring is completed, the loading rod 33 shrinks.

[0053] The O-ring automatic assembly equipment 100 of the present invention is provided with a loading chute at the side end of the loading barrel 50, and the loading chute is driven by a conveyor belt. The O-rings can be loaded one by one into the composite support ring 52 of the hollow cylinder 51. The three-jaw clamp of the clamp and the support jaw can be retracted to support the assembly of O-rings of different diameters, so that one piece of assembly equipment can assemble O-rings of different sizes. The O-ring automatic assembly equipment 100 has strong integrity and does not require the coordinated movement of multiple parts. Therefore, it is not easy to cause the operation of the fixture to malfunction due to the malfunction of the coordination between the parts during operation. Secondly, the number of parts is small and the structural complexity is low, which is conducive to reducing production costs, improving production efficiency, and saving labor costs. The detachable structure makes its later maintenance simpler and more convenient.

[0054] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An O-ring automatic assembly device, characterized in that: It includes a working slide rail, a transition temporary storage support claw, a material taking and loading clamping claw and an assembly stand. The assembly stand is arranged with a material storage and taking station and a loading station. The working slide rail and the assembly stand are arranged relative to each other in the height direction. The transition temporary storage support claw comprises a mounting platform and a multi-leg support claw, wherein the mounting platform is arranged on the material storage and material retrieval station, the multi-leg support claw is arranged on the mounting platform, and the multi-leg support claw comprises a plurality of support claws arranged at intervals along the circumferential direction, the bottom connecting end of the support claw is arranged on the mounting platform, and the top support end of the support claw extends upward and is arranged to contract radially inward. The material picking and loading clamp includes a lifting platform and a multi-legged material picking grab. The lifting platform can be movably hung on the working slide rail. The multi-legged material picking grab is arranged on the lifting platform. The multi-legged material picking grab includes a plurality of outer hook claws arranged at intervals along the circumferential direction. The top connecting end of the outer hook claw is arranged on the lifting platform. The bottom grabbing end of the support claw extends downward and is arranged radially outward.

2. The O-ring automatic assembly equipment according to claim 1, characterized in that: The material picking and loading clamp also includes a loading rod, and a plurality of the loading rods are arranged on the lifting platform at intervals along the circumferential direction. The loading rods and the outer hook claws are staggered. The top connecting end of the loading rod is arranged on the lifting platform, and the bottom telescopic end of the loading rod is suspended downwardly. The loading rod is a telescopic rod.

3. The O-ring automatic assembly equipment according to claim 1, characterized in that: The outer hook claw comprises a mounting connection section and an outer hook hanging section which contracts radially inward and then bends outward.

4. The O-ring automatic assembly equipment according to claim 1, characterized in that: The material picking and loading clamp also includes a material picking expansion and contraction device for driving the bottom grabbing end of the multi-legged material picking gripper to radially contract or expand outward, the material picking expansion and contraction device is arranged in the multi-legged material picking gripper, the first end of the material picking expansion and contraction device is connected to the lifting platform, and the second end of the material picking expansion and contraction device is connected to the inner wall surface of the multi-legged material picking gripper.

5. The O-ring automatic assembly equipment according to claim 1, characterized in that: The supporting claw comprises a radially outwardly expanding installation section, a radially contracting supporting end and a straight material guiding section which are arranged from bottom to top in height direction.

6. The O-ring automatic assembly equipment according to any one of claims 1 to 5, characterized in that: The O-ring automatic assembly equipment further comprises a loading barrel, which is movably hung on the working slide rail. The loading barrel includes a hollow cylinder and a composite support ring. A feed filling port with a side opening is provided on the top of the loading barrel. A circular ring groove is arranged on the inner wall surface of the hollow cylinder. The circular ring groove is located below the feed filling port. The composite support ring includes an arcuate sub-ring and a radial movable driver. The arcuate sub-ring is movably arranged in the circular ring groove along the radial direction. One end of the radial movable driver is connected to the groove wall of the circular ring groove, and the other end of the radial movable driver is connected to the arcuate sub-ring.

7. The O-ring automatic assembly equipment according to claim 6, characterized in that: The plurality of annular grooves are arranged at intervals along the height direction of the hollow cylinder, and the composite support rings are arranged in one-to-one correspondence with the annular grooves.

8. The O-ring automatic assembly equipment according to claim 6, characterized in that: The loading barrel also includes a center positioning column, which is a magnetic positioning column. The hollow cylinder uses a magnetic cylinder. The center positioning column is suspended in the hollow cylinder and a sealing ring gap is left between the center positioning column and the inner wall surface of the hollow cylinder. The center positioning column is located below the feed filling port.

9. The automatic O-ring assembly equipment according to claim 6, characterized in that: The O-ring automatic assembly equipment also includes a feeding pipe, on which a feeding chute is arranged. The feeding chute is arranged to be inclined downward vertically, and the downwardly inclined end of the feeding chute is connected to the feed filling port.

10. The automatic O-ring assembly equipment according to any one of claims 1 to 5, characterized in that: The working slide rail is a U-shaped steel structure with an opening at the bottom. The two side walls of the working slide rail are respectively provided with sliding guide grooves, and the sliding guide grooves are arranged along the extension direction of the working slide rail. The lifting platform is provided with a sliding rail matched with the sliding guide groove.

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