Pneumatic device for assembling outer O-shaped ring on valve rod

Abstract

The utility model discloses a pneumatic device for assembling an outer O-shaped ring on a valve rod, which comprises a bottom frame, and a mounting seat is fixedly mounted on the bottom frame; the two conveying belts are arranged on the bottom frame and are used for conveying valve rods and outer O-shaped rings respectively; the first air cylinder is fixedly installed on the installation base, a push plate is fixedly installed on the first air cylinder, and the push plate is used for pushing the outer O-shaped ring moving to the installation base; the second air cylinder is fixedly mounted on the mounting seat, and a placing disc is fixedly mounted on an output shaft of the second air cylinder; the machine frame is fixedly installed on the bottom frame, and an electric guide rail is arranged on the machine frame. According to the pneumatic device for assembling the outer O-shaped ring on the valve rod, the valve rod can be sleeved with the outer O-shaped ring, the valve rod can be accurately sleeved with the outer O-shaped ring, and the accuracy and stability of sleeving the outer O-shaped ring are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve stem processing, and particularly relates to a pneumatic device for assembling an outer O-ring on a valve stem. Background Technique

[0002] The valve stem is an important component of the valve and is used for transmission. It is connected to the actuator or handle at the upper part and directly drives the valve core to move or rotate at the lower part to realize the opening, closing or adjusting function of the valve.

[0003] In the process of processing the valve stem, it is necessary to assemble an outer O-ring on the valve stem. Therefore, a corresponding pneumatic device for assembling the outer O-ring on the valve stem is required. However, some existing pneumatic devices for assembling the outer O-ring on the valve stem still have certain deficiencies in the actual use process. The components on the pneumatic device for assembling the outer O-ring on the valve stem expand the O-ring and sleeved it on the valve stem. However, during the sleeving process, the O-ring cannot be well pushed downward to disengage, resulting in the problem that the sleeving position of the O-ring is inaccurate, and the stability during the sleeving of the O-ring is reduced. Summary of the Utility Model

[0004] The utility model provides a pneumatic device for assembling an outer O-ring on a valve stem, aiming to solve the problem that the currently used pneumatic device for assembling the outer O-ring on the valve stem is not accurate enough in sleeving the O-ring as proposed in the above background technique.

[0005] To solve the above problems, the utility model is realized as follows: A pneumatic device for assembling an outer O-ring on a valve stem includes: a chassis, one end of the top of the chassis is fixedly installed with a mounting seat; two conveyor belts arranged at the other end of the top of the chassis, and the two conveyor belts are respectively used for conveying the valve stem and the outer O-ring; a first cylinder horizontally and fixedly installed on the mounting seat, a push plate is fixedly installed on the first cylinder, and the push plate is used to push the outer O-ring that moves onto the mounting seat; a second cylinder vertically and fixedly installed in the mounting seat, a placement plate is fixedly installed on the output shaft of the second cylinder; a frame fixedly installed on the chassis, a horizontally extending electric guide rail is arranged at the top of the frame; a third cylinder fixedly installed on the output block of the electric guide rail, a placement rack is fixedly installed on the output shaft of the third cylinder, and a sleeving mechanism is arranged on the placement rack, and the sleeving mechanism is used to sleeve the outer O-ring on the valve stem; a clamping mechanism arranged on the chassis, and the clamping mechanism is used to clamp the valve stem.

[0006] Preferably, a plurality of avoidance openings are formed around the center of the placement plate.

[0007] Preferably, the sleeving mechanism includes: a plurality of fourth cylinders fixedly installed on the inner side wall of the placement rack and evenly distributed around the center; a plurality of support plates respectively fixedly installed on the plurality of fourth cylinders, the plurality of support plates corresponding to the plurality of avoidance openings respectively, and the support plates being used for supporting the external O-ring; a plurality of thumb cylinders respectively fixedly installed on the plurality of support plates; and a plurality of push blocks respectively fixedly installed on the plurality of thumb cylinders, the push blocks being used for pushing the external O-ring supported on the support plates.

[0008] Preferably, the material clamping mechanism includes: a bracket arranged on the chassis, one end of the bracket is fixedly installed with a horizontally distributed fifth cylinder through a vertical plate, and a vertically distributed sixth cylinder is fixedly installed on the output shaft of the fifth cylinder; a horizontal plate fixedly installed on the output shaft of the sixth cylinder, one end of the horizontal plate is fixedly connected with a connecting frame; two seventh cylinders symmetrically and fixedly installed on both sides of the connecting frame; and two clamping plates respectively fixedly installed on the output shafts of the two seventh cylinders, the two clamping plates being used for clamping the valve stem.

[0009] Preferably, the adjusting mechanism arranged on the chassis and the bracket is used for adjusting the position of the valve stem clamped by the clamping plates. The adjusting mechanism includes: a motor fixedly installed on the chassis; and a mounting shaft fixedly installed on the output shaft of the motor, the mounting shaft being fixedly connected with the bracket.

[0010] Preferably, a blanking opening is formed on the chassis, the blanking opening is used for discharging the valve stem sleeved with the external O-ring, a recycling box is arranged below the chassis, the recycling box is used for collecting the valve stem sleeved with the external O-ring, and the recycling box is located below the blanking opening.

[0011] Preferably, a controller is arranged on one side of the chassis, and the controller is used for control operations.

[0012] Compared with the related art, the pneumatic device for assembling an external O-ring on a valve stem provided by the present utility model has the following beneficial effects:

[0013] Compared with the prior art, the pneumatic device for assembling an external O-ring on a valve stem provided by this solution:

[0014] Through the whole device, the valve stem can be processed by sleeving the external O-ring, and the external O-ring can be accurately sleeved on the valve stem, improving the accuracy and stability of sleeving the external O-ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front view structural schematic diagram of a pneumatic device for assembling an external O-ring on a valve stem provided by the present utility model;

[0016] Figure 2 is the schematic diagram of the front sectional view of the utility model;

[0017] Figure 3 is Figure 2 the enlarged schematic diagram of part A shown in

[0018] Figure 4 is Figure 2 the enlarged schematic diagram of part B shown in

[0019] Figure 5 is Figure 2 the enlarged schematic diagram of part C shown in

[0020] Figure 6 is the schematic diagram of the placement tray and the avoidance opening in the utility model;

[0021] Figure 7 is the schematic diagram of the top sectional view of the placement rack, the fourth cylinder and the support plate in the utility model;

[0022] Figure 8 is the schematic diagram of the connecting rack, the seventh cylinder and the clamping plate in the utility model;

[0023] Figure 9 is the schematic diagram of the thumb cylinder and the push block in the utility model.

[0024] Reference numerals: 1, chassis; 101, mounting seat; 2, conveyor belt; 3, first cylinder; 4, push plate; 5, second cylinder; 6, placement tray; 601, avoidance opening; 7, frame; 8, third cylinder; 9, placement rack; 10, fourth cylinder; 11, support plate; 12, thumb cylinder; 13, push block; 14, bracket; 15, fifth cylinder; 16, sixth cylinder; 17, connecting rack; 18, seventh cylinder; 19, clamping plate; 20, motor; 21, mounting shaft. Detailed implementation manners

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order; the terms "inner", "outer", "left", "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation to this utility model.

[0026] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of this application. The phrase does not necessarily refer to the same embodiment when it appears in various places in the specification, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0027] An embodiment of the utility model provides a pneumatic device for assembling an outer O-ring on a valve stem. As Figures 1-9 shown, the pneumatic device for assembling an outer O-ring on a valve stem includes: a chassis 1, at one end of the top of the chassis 1, a mounting seat 101 is fixedly installed; two conveyor belts 2 arranged at the other end of the top of the chassis 1, the two conveyor belts 2 are respectively used for conveying the valve stem and the outer O-ring; a first cylinder 3 horizontally and fixedly installed on the mounting seat 101, a push plate 4 is fixedly installed on the first cylinder 3, and the push plate 4 is used to push the outer O-ring that moves onto the mounting seat 101; a second cylinder 5 vertically and fixedly installed in the mounting seat 101, a placement plate 6 is fixedly installed on the output shaft of the second cylinder 5; a frame 7 fixedly installed on the chassis 1, a horizontally extending electric guide rail is arranged at the top of the frame 7; a third cylinder 8 fixedly installed on the output block of the electric guide rail, a placement rack 9 is fixedly installed on the output shaft of the third cylinder 8, and a sleeving mechanism is arranged on the placement rack 9, and the sleeving mechanism is used to sleevethe outer O-ring on the valve stem; a material clamping mechanism arranged on the chassis 1, and the material clamping mechanism is used to clamp the valve stem.

[0028] In this embodiment, during operation, the outer O-ring is conveyed on the conveyor belt 2 on the left side of the chassis 1, and the valve stem is conveyed on the conveyor belt 2 on the right side of the chassis 1. When the outer O-ring is conveyed to the mounting seat 101, the conveyor belt 2 for conveying the outer O-ring pauses. Then the controller starts the first cylinder 3 to drive the push plate 4 to move, so as to push the outer O-ring on the mounting seat 101 onto the placing plate 6. Then the controller starts the second cylinder 5 to drive the outer O-ring on the placing plate 6 to move up a certain height. At the same time, the controller starts the electric guide rail to drive the sleeving mechanism to move above the placing plate 6. Then the controller starts the third cylinder 8 to drive the sleeving mechanism to move down to pick up the outer O-ring on the placing plate 6. Then the electric guide rail drives the outer O-ring to move to the corresponding position to the right. The controller starts the clamping mechanism to clamp the valve stem. At the same time, the controller starts the adjusting mechanism to rotate the clamped valve stem to the lower part of the sleeving mechanism. Then the controller starts the sleeving mechanism to sleeve the outer O-ring onto the valve stem. After the sleeving is completed, the controller starts the clamping mechanism to release the clamping of the valve stem for discharging. By operating in this way repeatedly, the outer O-ring can be continuously sleeved on the valve stem.

[0029] In a further preferred embodiment of the present utility model, a plurality of avoidance openings 601 are formed around the center on the placing plate 6.

[0030] In this embodiment, the avoidance openings 601 facilitate the sleeving mechanism to pick up the outer O-ring.

[0031] In a further preferred embodiment of the present utility model, the sleeving mechanism includes: a plurality of fourth cylinders 10 fixedly installed on the inner side wall of the placing frame 9 and evenly distributed around the center; a plurality of support plates 11 respectively fixedly installed on the plurality of fourth cylinders 10, and the plurality of support plates 11 respectively correspond to the plurality of avoidance openings 601, and the support plates 11 are used to support the outer O-ring; a plurality of thumb cylinders 12 respectively fixedly installed on the plurality of support plates 11; a plurality of push blocks 13 respectively fixedly installed on the plurality of thumb cylinders 12, and the push blocks 13 are used to push the outer O-ring supported on the support plates 11.

[0032] In this embodiment, when using the sleeving mechanism, the controller starts the third cylinder 8 to drive the support plates 11 to move down, and the plurality of support plates 11 are respectively inserted into the plurality of avoidance openings 601. Then the controller starts the plurality of fourth cylinders 10 to drive the plurality of support plates 11 to move away from each other respectively, so as to expand and pick up the outer O-ring. When it is necessary to sleeve the outer O-ring onto the valve stem, the controller drives the third cylinder 8 to drive the outer O-ring to move down a certain position. At this time, the valve stem is located inside the outer O-ring. Then the controller starts the plurality of thumb cylinders 12 to drive the plurality of push blocks 13 to move down respectively, and push the expanded outer O-ring on the support plates 11 downward to separate from the support plates 11, so that the outer O-ring can be accurately sleeved onto the valve stem, improving the accuracy and stability of sleeving the outer O-ring.

[0033] In a further preferred embodiment of the present utility model, the material clamping mechanism includes: a bracket 14 provided on the chassis 1, one end of the bracket 14 is fixedly installed with a horizontally distributed fifth cylinder 15 through a vertical plate, and a vertically distributed sixth cylinder 16 is fixedly installed on the output shaft of the fifth cylinder 15; a horizontal plate fixedly installed on the output shaft of the sixth cylinder 16, one end of the horizontal plate is fixedly connected with a connecting frame 17; two seventh cylinders 18 symmetrically and fixedly installed on both sides of the connecting frame 17; two clamping plates 19 respectively fixedly installed on the output shafts of the two seventh cylinders 18, and the two clamping plates 19 are used for clamping the valve stem.

[0034] In this embodiment, when using the material clamping mechanism, according to the actual situation, the horizontal use position of the clamping plate 19 can be adjusted by the fifth cylinder 15, and the vertical use position of the clamping plate 19 can be adjusted by the sixth cylinder 16, so that the clamping plate 19 can be adjusted to a suitable position to clamp the valve stem. Then the controller starts the two seventh cylinders 18 to drive the two clamping plates 19 to move relatively, so as to clamp the valve stem, and further facilitate the operation of sleeving the outer O-ring on the valve stem.

[0035] In a further preferred embodiment of the present utility model, the adjusting mechanism provided on the chassis 1 and the bracket 14 is used to adjust the position of the valve stem clamped by the clamping plate 19. The adjusting mechanism includes: a motor 20 fixedly installed on the chassis 1; a mounting shaft 21 fixedly installed on the output shaft of the motor 20, and the mounting shaft 21 is fixedly connected with the bracket 14.

[0036] In this embodiment, after the clamping plate 19 clamps the valve stem, the controller starts the motor 20 to drive the mounting shaft 21 to rotate 180 degrees, thereby driving the bracket 14 to rotate, and further driving the clamped valve stem to be adjusted below the sleeving mechanism, so as to facilitate the operation of sleeving the outer O-ring on the valve stem.

[0037] In a further preferred embodiment of the present utility model, a blanking port is provided on the chassis 1, and the blanking port is used for discharging the valve stem sleeved with the outer O-ring. A recycling box is arranged below the chassis l, and the recycling box is used for collecting the valve stem sleeved with the outer O-ring, and the recycling box is located below the blanking port.

[0038] In this embodiment, the blanking port is used for discharging the valve stem sleeved with the outer O-ring, and the recycling box is used for collecting the valve stem sleeved with the outer O-ring.

[0039] In a further preferred embodiment of the present utility model, a controller is arranged on one side of the chassis 1, and the controller is used for control operations.

[0040] In this embodiment, control operations are performed through a controller.

[0041] In summary, compared with the related art, through the entire device, the valve stem can be processed with an outer O-ring sleeved thereon, and the outer O-ring can be accurately sleeved on the valve stem, improving the accuracy and stability of the outer O-ring sleeving.

[0042] In several embodiments provided by this application, it should be understood that the disclosed device can be implemented in other ways.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the invention. Obviously, the described embodiments are only partial embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict, make combinations, additions, deletions, or other adjustments to the features in the various embodiments of the present invention according to the circumstances without making creative efforts, so as to obtain different technical solutions that do not essentially depart from the concept of the present invention, and these technical solutions also fall within the scope of protection of the present invention.

Claims

1. A pneumatic device for the outer O-ring of a valve stem assembly, characterized in that, Including: A chassis, at one end of the top of the chassis, a mounting seat is fixedly installed; two conveyor belts are arranged at the other end of the top of the chassis, and the two conveyor belts are respectively used for conveying a valve stem and an outer O-ring; a first cylinder horizontally and fixedly installed on the mounting seat, a push plate is fixedly installed on the first cylinder, and the push plate is used for pushing the outer O-ring that moves onto the mounting seat; a second cylinder vertically and fixedly installed in the mounting seat, a placing plate is fixedly installed on the output shaft of the second cylinder; a frame fixedly installed on the chassis, a horizontally extending electric guide rail is arranged at the top of the frame; a third cylinder fixedly installed on the output block of the electric guide rail, a placing rack is fixedly installed on the output shaft of the third cylinder, and a sleeving mechanism is arranged on the placing rack, and the sleeving mechanism is used for sleeving the outer O-ring on the valve stem; a material clamping mechanism arranged on the chassis, and the material clamping mechanism is used for clamping the valve stem.

2. The pneumatic device with an external O-ring for valve stem assembly according to claim 1, characterized in that, A plurality of avoidance openings are formed around the center of the placing plate.

3. The valve stem assembly outer O-ring pneumatic device according to claim 2, characterized in that, The sleeving mechanism includes: a plurality of fourth cylinders fixedly installed on the inner side wall of the placing rack and evenly distributed around the center; a plurality of support plates respectively fixedly installed on the plurality of fourth cylinders, the plurality of support plates respectively correspond to the plurality of avoidance openings, and the support plates are used for supporting the outer O-ring; a plurality of thumb cylinders respectively fixedly installed on the plurality of support plates; a plurality of push blocks respectively fixedly installed on the plurality of thumb cylinders, and the push blocks are used for pushing the outer O-ring supported on the support plates.

4. The valve stem assembly outer O-ring pneumatic device according to claim 1, characterized in that The material clamping mechanism includes: a bracket arranged on the chassis, one end of the bracket is fixedly installed with a horizontally distributed fifth cylinder through a vertical plate, and a vertically distributed sixth cylinder is fixedly installed on the output shaft of the fifth cylinder; a horizontal plate fixedly installed on the output shaft of the sixth cylinder, one end of the horizontal plate is fixedly connected with a connecting frame; two seventh cylinders symmetrically and fixedly installed on both sides of the connecting frame; two clamping plates respectively fixedly installed on the output shafts of the two seventh cylinders, and the two clamping plates are used for clamping the valve stem.

5. The valve stem assembly outer O-ring pneumatic device according to claim 4, characterized in that, Also including: An adjusting mechanism arranged on the chassis and the bracket, the adjusting mechanism is used for adjusting the position of the valve stem clamped by the clamping plates, and the adjusting mechanism includes: a motor fixedly installed on the chassis; A mounting shaft fixedly installed on the output shaft of the motor, and the mounting shaft is fixedly connected with the bracket.

6. The outer O-ring pneumatic device for valve stem assembly according to claim 1, characterized in that, A blanking opening is formed on the chassis, and the blanking opening is used for discharging the valve stem sleeved with the outer O-ring. A recycling box is arranged below the chassis, and the recycling box is used for collecting the valve stem sleeved with the outer O-ring, and the recycling box is located below the blanking opening.

7. The pneumatic device with an outer O-ring for valve stem assembly according to claim 1, characterized in that, A controller is arranged on one side of the chassis, and the controller is used for controlling operations.

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