Sealing ring inner diameter opening device

Abstract

The utility model discloses a sealing ring inner diameter opening device which comprises a main fixing plate and a step shaft, a sealing ring push-in plate is installed below the main fixing plate, the step shaft is installed in the sealing ring push-in plate, a reset spring is connected below the step shaft, the bottom of the reset spring is connected with a connecting plate, and the connecting plate is connected with a sealing ring push-in plate. Rollers are connected to the main fixing plate, and a fixing shell is mounted on the main fixing plate. The sealing ring inner diameter opening device is provided with the telescopic claw capable of opening a rubber sealing ring, the telescopic claw stretches out and draws back through the opening claw of the telescopic claw, the sealing rubber ring can be conveniently pushed into a product when being opened, efficiency is high, time is short, the pushing-in precision is easy to guarantee, the roller capable of adjusting the angle is installed, the opening angle is convenient to adjust, and the sealing ring inner diameter opening device is convenient to use. Therefore, the degree of freedom is better, and the sealing rubber ring can be expanded more conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of expansion, in particular to a sealing ring inner diameter expansion device. Background Art

[0002] In the factory's assembly workshop, rubber sealing rings are manually stretched out and inserted into the product parts that need to be sealed by multiple people. Manual assembly requires multiple people to assemble at the same time to ensure the efficiency required by the production line, and it takes a long time for one person to assemble a single PC. In addition, people's fingers are easily tired after a long time of stretching, and they need to rest after a certain period of time, which requires two groups of people to work alternately and cannot work for a long time. Because each person's technique is different, the position of the inserted product is uneven, the sealing ring is put on the wrong way, and the accuracy is difficult to guarantee, which makes subsequent inspections at the workstation difficult, resulting in a large number of NG products and a large amount of rework.

[0003] After searching, the patent number CN201920774676.4 discloses a sealing ring expansion mechanism, which includes a pad, a connecting rod, an expansion plate, a four-claw finger cylinder, an expansion jaw, an expansion rod, an adjustment bracket and a sealing ring sensor. The pad is fixed on a rotating platform, and the pad is fixedly connected to the expansion plate above it through a connecting rod. A four-claw finger cylinder is installed on the pad, and the four jaws of the four-claw finger cylinder are arranged in a circular array. The jaws of the four-claw finger cylinder are all equipped with expansion jaws, and the four expansion jaws are cross-shaped. A vertically arranged expansion rod is installed on the protruding end of the expansion jaw, and a cross-shaped slot is provided on the expansion plate, and the expansion rod passes through the cross-shaped slot respectively.

[0004] The sealing ring expansion mechanism has a simple structure and can replace manual automatic expansion of the sealing ring. The sealing ring is evenly stressed and can avoid damage. However, when the sealing ring is expanded using the sealing ring expansion mechanism, the device is not convenient to use and the angle of the sealing ring cannot be adjusted when expanded. Therefore, in response to the above problems, we have made changes and innovations to the original sealing ring inner diameter expansion device. Utility Model Content

[0005] The purpose of the utility model is to provide a sealing ring inner diameter expansion device to solve the problem raised in the above background technology that when the sealing ring expansion mechanism on the market expands the sealing ring, the device is not convenient to use and cannot adjust the angle of the sealing ring when expanding.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealing ring inner diameter expansion device, comprising a total fixed plate and a step shaft, a sealing ring push-in plate is installed under the total fixed plate, and a step shaft is installed inside the sealing ring push-in plate, a reset spring is connected under the step shaft, and a connecting plate is connected to the bottom of the reset spring, a roller is connected to the total fixed plate, and a fixing shell is installed on the total fixed plate.

[0007] Preferably, the sealing ring pushing plate is a heterogeneous hollow structure, and a plurality of groups of grooves are annularly arranged on the sealing ring pushing plate.

[0008] Preferably, the guide block is installed in the sealing ring push plate, and the guide block is installed in three groups of rings. The bottom of the guide block is connected to the telescopic claw, and the telescopic claw is also installed in three groups of rings, and a rubber sealing ring is connected under the telescopic claw.

[0009] Preferably, the step shaft is installed inside the push plate, and a dividing block is connected below the step shaft.

[0010] Preferably, a connecting plate is connected below the reset spring via a retraction spring to form a telescopic structure.

[0011] Preferably, the connecting shell is installed on the main fixing plate, and the connecting shell is a concave structure, and a roller is installed in the middle of the connecting shell, and the roller is an arc-shaped structure.

[0012] The fixed shell is an inverted concave structure, and both ends of the fixed shell are connected to the connecting shell by clamping. A motor is installed on one side of the fixed shell, and the motor passes through the fixed shell and is connected to the rotating shaft to form a rotating structure. A threaded shaft is installed on the rotating shaft, and the threaded shaft is meshed with the roller, and the roller forms a moving structure through the threaded shaft.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the sealing ring inner diameter expansion device;

[0014] 1. A telescopic claw that can expand the rubber sealing ring is installed on the sealing ring inner diameter expansion device. The telescopic claw can be extended and retracted through its own expansion claw, which can ensure that the manual pre-installed rubber sealing ring does not require any skills and relatively large force when retracted, and can also ensure that the inner diameter of the rubber sealing ring can be expanded when extended, so that it is convenient to push it into the product, with high efficiency, short time, and easy to ensure the pushing accuracy.

[0015] 2. In order to improve the flexibility when using the telescopic claw to use the rubber sealing ring, a roller that can be adjusted in angle is installed. The roller can be rotatably engaged with the threaded shaft, so that when the telescopic claw is used to open the sealing rubber ring, it is easy to adjust the opening angle, which makes the degree of freedom better and makes it easier to open the sealing rubber ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of a partial three-dimensional structure of the utility model;

[0018] Figure 3 It is a schematic diagram of a partial three-dimensional cross-sectional structure of the utility model;

[0019] Figure 4 It is a partial front view cross-sectional structural schematic diagram of the utility model;

[0020] Figure 5 For this utility model Figure 4 A schematic diagram of the structure enlargement in the middle;

[0021] Figure 6 It is a schematic diagram of a partial side sectional structure of the utility model.

[0022] In the figure: 1. main fixed plate; 2. sealing ring push-in plate; 3. guide block; 4. telescopic claw; 5. rubber sealing ring; 6. step shaft; 7. dividing block; 8. reset spring; 9. retraction spring; 10. connecting plate; 11. connecting shell; 12. roller; 13. fixed shell; 14. motor; 15. rotating shaft; 16. threaded shaft. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-6 The utility model provides a technical solution: a sealing ring inner diameter expansion device, comprising a total fixed plate 1 and a step shaft 6, a sealing ring pushing plate 2 is installed under the total fixed plate 1, and the step shaft 6 is installed inside the sealing ring pushing plate 2, a reset spring 8 is connected under the step shaft 6, and the bottom of the reset spring 8 is connected to a connecting plate 10, a roller 12 is connected above the total fixed plate 1, and a fixing shell 13 is installed above the total fixed plate 1.

[0025] The guide block 3 is installed in the sealing ring push-in plate 2, and the guide block 3 is installed in three groups of rings. The bottom of the guide block 3 is connected to the telescopic claw 4, and the telescopic claw 4 is also installed in three groups of rings, and a rubber sealing ring 5 is connected under the telescopic claw 4. The guide block 3 and the telescopic claw 4 are installed in multiple groups, which makes it more stable when the sealing ring is stretched.

[0026] The step shaft 6 is installed inside the push plate 2 , and a dividing block 7 is connected below the step shaft 6 . The step shaft 6 can be expanded simultaneously with the sealing push plate 2 .

[0027] The return spring 8 is connected to the connecting plate 10 via the retraction spring 9 to form a telescopic structure. The connecting shell 11 is installed on the main fixed plate 1, and the connecting shell 11 is a concave structure. A roller 12 is installed in the middle of the connecting shell 11, and the roller 12 is an arc structure. The roller 12 can form a sliding structure with the threaded shaft 16, so as to drive the expansion device to adjust the angle.

[0028] The fixed shell 13 is a reverse concave structure, and both ends of the fixed shell 13 are connected to the connecting shell 11 by a card. A motor 14 is installed on one side of the fixed shell 13, and the motor 14 passes through the fixed shell 13 and is connected to the rotating shaft 15 to form a rotating structure. A threaded shaft 16 is installed on the rotating shaft 15, and the threaded shaft 16 is meshed with the roller 12. The roller 12 forms a moving structure through the threaded shaft 16. The fixed shell 13 and the connecting shell 11 are connected by a card, so that the connecting shell 11 is more stable when it moves.

[0029] Working principle: When using the sealing ring inner diameter expansion device, first, the total fixed plate is a total fixed plate that can be fixed and force can be applied. The entire mechanism is fixed on this plate. The initial position is that the telescopic claw and the connecting plate indexing block are popped out due to the reset spring, and the guide block slides to the lower limit. At this time, it is positioned to the position of the expanded step shaft minor diameter. The telescopic claw and the connecting plate are retracted at the same time by six springs. The artificially pre-placed rubber sealing ring is inserted into the retraction claw to apply a vertical downward force to the total fixed plate. The telescopic claw and the bottom of the connecting plate indexing block first contact the top of the rubber sealing ring that needs to be inserted, and continue to apply downward force. The indexing block retracts upward, and the guide slider slides to the upper limit. At this time, it is positioned to the position of the expanded step shaft major diameter, the telescopic claw and the connecting plate extend, the rubber sealing ring expands, and continues to apply downward force. The sealing ring push-in plate pushes the expanded sealing ring into the product, applies upward force, and the reset spring pops out the indexing block. The guide block returns to the lower limit to expand the step shaft minor diameter position, and the telescopic claw can be retracted.

[0030] When the angle of the device needs to be adjusted in order to better open the sealing ring, the motor 14 is started, and the motor 14 drives the rotating shaft 15 to rotate. Since the threaded shaft 16 is installed on the motor 15, when the rotating shaft 15 rotates, the threaded shaft 16 will be driven to rotate at the same time, and since the threaded shaft 16 is in rotational meshing with the roller 12, when the threaded shaft 16 rotates, the roller 12 will move at the same time, and since the roller 12 is installed on the connecting shell 11, when the roller 12 moves, the connecting shell 11 and the total fixed plate 1 connected to the bottom of the connecting shell 11 will move at the same time, so that the angle of the total fixed plate 1 can be adjusted, and since the connecting shell 11 and the fixed shell 13 are connected at both ends, the stability of the connecting shell 11 when it moves is ensured. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sealing ring inner diameter expansion device, comprising a main fixing plate (1) and a stepped shaft (6), characterized in that: A sealing ring push-in plate (2) is installed below the main fixed plate (1), and a step shaft (6) is installed inside the sealing ring push-in plate (2). A return spring (8) is connected below the step shaft (6), and a connecting plate (10) is connected to the bottom of the return spring (8). A roller (12) is connected above the main fixed plate (1), and a fixing shell (13) is installed above the main fixed plate (1).

2. A sealing ring inner diameter expansion device according to claim 1, characterized in that: The sealing ring pushing plate (2) is a heterogeneous hollow structure, and a plurality of groups of grooves are annularly arranged on the sealing ring pushing plate (2).

3. A sealing ring inner diameter expansion device according to claim 1, characterized in that: A guide block (3) is installed in the sealing ring push-in plate (2), and the guide block (3) is installed in three groups in an annular shape. The bottom of the guide block (3) is connected to the telescopic claw (4), and the telescopic claw (4) is also installed in three groups in an annular shape. A rubber sealing ring (5) is connected below the telescopic claw (4).

4. A sealing ring inner diameter expansion device according to claim 1, characterized in that: The step shaft (6) is installed inside the push-in plate (2), and a dividing block (7) is connected below the step shaft (6).

5. A sealing ring inner diameter expansion device according to claim 1, characterized in that: The lower side of the reset spring (8) is connected to a connecting plate (10) via a retraction spring (9) to form a telescopic structure.

6. A sealing ring inner diameter expansion device according to claim 1, characterized in that: A connecting shell (11) is installed on the main fixing plate (1), and the connecting shell (11) is a concave structure. A roller (12) is installed in the middle of the connecting shell (11), and the roller (12) is an arc-shaped structure.

7. A sealing ring inner diameter expansion device according to claim 1, characterized in that: The fixed shell (13) is a reverse concave structure, and the two ends of the fixed shell (13) are connected to the connecting shell (11) by clamping, a motor (14) is installed on one side of the fixed shell (13), and the motor (14) passes through the fixed shell (13) and is connected to the rotating shaft (15) to form a rotating structure, a threaded shaft (16) is installed on the rotating shaft (15), and the threaded shaft (16) is meshed with the roller (12), and the roller (12) forms a moving structure through the threaded shaft (16).

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