Fixing device for pneumatic ball valve

Abstract

The utility model discloses a fixing device for a pneumatic ball valve. The fixing device comprises a supporting shell; the multiple positioning columns are arranged on the top of the supporting shell, and a limiting rod used for limiting the angle of a workpiece is arranged on one side of each positioning column; the bottom plate is connected with the supporting shell in a threaded mode, the clamping part is arranged in the middle of the supporting shell, the clamping part comprises a first pressing rod and a second pressing rod which are arranged on the two sides of the bottom plate, and the sides, facing the supporting shell, of the first pressing rod and the second pressing rod are of inclined plane structures. The sizes of the positioning column and the limiting rod can be changed according to the size of the valve body, so that the flexibility and the applicability of the device are enhanced, and the fixing requirements of pneumatic ball valves of different specifications can be met; the bottom of the first pressing rod and the bottom of the second pressing rod are designed to be of an inclined face structure, copper plates are installed, in this way, indentations can be effectively prevented from being generated on the surface of a workpiece in the fixing process, and the integrity and appearance quality of the valve body are protected.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic ball valves, in particular to a fixing device for a pneumatic ball valve. Background Art

[0002] A pneumatic ball valve primarily consists of a ball valve body, including the ball, seat, and seals, and a pneumatic actuator. The pneumatic actuator drives the ball's rotation to open and close the valve.

[0003] During the valve body processing, the valve body needs to be punched and polished. During the processing, it needs to be fixed. The existing fixation is mostly done by a bench vise or other tooling. The existing tooling is mostly an integrated structure and cannot be replaced according to the size of the valve body. During processing, multiple valve bodies cannot be fixed synchronously for processing. Utility Model Content

[0004] The purpose of the present utility model is to provide a fixing device for a pneumatic ball valve to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fixing device for a pneumatic ball valve, comprising:

[0006] Support shell;

[0007] Positioning columns, a plurality of which are provided and placed on the top of the support shell, and a limiting rod for limiting the angle of the workpiece is provided on one side of the positioning column;

[0008] The clamping part is placed in the middle of the support shell, and the clamping part includes a pressure rod 1 and a pressure rod 2 placed on both sides of the bottom plate. The pressure rod 1 and the pressure rod 2 have an inclined surface structure facing the support shell, which is used to press the workpiece when the movable groove and the pressure rod 1 move toward the positioning column;

[0009] The driving part is placed inside the supporting shell and includes a gear assembly and a cylinder for driving the gear to rotate.

[0010] Preferably, the bottom of the positioning column is fixedly connected to a base plate, the base plate is threadedly connected to the support shell, and the limiting rod is fixed to the top of the base plate.

[0011] Preferably, a movable groove is provided on the top of the support shell and on both sides of each positioning column, and the first and second pressure rods are both in the movable groove.

[0012] Preferably, the bottom of the pressure rod 1 is fixedly connected to the moving rod 1, the bottom of the pressure rod 2 is fixedly connected to the moving rod 2, and the outer sides of the moving rod 2 and the moving rod 1 are both slidably connected to the limiting groove, and the limiting groove is fixed to the support shell.

[0013] Preferably, the gear assembly includes a transmission gear rotatably mounted inside a support shell, wherein the outer side of the transmission gear is meshedly connected with rack 1 and rack 2, wherein rack 1 rotates around the axis of the transmission gear by degrees and coincides with rack 2, wherein rack 1 is fixedly connected to movable rod 1, and movable rod 2 is fixedly connected to rack 2.

[0014] Preferably, the cylinder is fixedly connected to the inner wall of the support shell, and the output end of the cylinder is fixedly connected to the moving rod through a support rod.

[0015] Preferably, a side plate is fixed to the end of the support shell, a guide rod slidably connected to the second moving rod is fixed to one side of the side plate, and a spring is sleeved on the outside of the guide rod and located between the second moving rod and the side plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the base plate is connected to the support shell by a threaded connection, so that the size of the positioning column and the limit rod can be replaced according to the size of the valve body, thereby enhancing the flexibility and applicability of the device and being able to adapt to the fixing requirements of pneumatic ball valves of different specifications; the bottom of the pressure rod 1 and the pressure rod 2 is designed as an inclined structure, and a copper plate is installed, which can effectively prevent indentations on the workpiece surface during the fixing process, thereby protecting the integrity and appearance quality of the valve body; the height of the moving rod 1 and the moving rod 2 is limited by setting a limit groove, thereby ensuring that the pressure rod 1 and the pressure rod 2 can slide stably and horizontally during the tightening process, thereby improving the stability and reliability of the fixation; the cooperation of the gear assembly and the cylinder realizes the simultaneous movement of the pressure rod 1 and the pressure rod 2 toward the positioning column, which can efficiently and synchronously fix multiple valve bodies and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the limit slot of the utility model;

[0019] Figure 3 This is a structural diagram of the pressure rod 1 of the utility model;

[0020] Figure 4 It is a structural diagram of the spring of the utility model.

[0021] In the figure: 1. Support shell; 2. Side plate; 3. Bottom plate; 4. Positioning column; 5. Limit rod; 6. Moving groove; 7. Pressure rod 1; 8. Pressure rod 2; 9. Limit groove; 10. Moving rod 1; 11. Rack 1; 12. Transmission gear; 13. Rack 2; 14. Cylinder; 15. Guide rod; 16. Spring; 17. Moving rod 2. DETAILED DESCRIPTION

[0022] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1 、 2 As shown in Figures 3 and 4, the utility model provides a technical solution: a fixing device for a pneumatic ball valve, comprising: a support shell 1; four positioning columns 4 are provided and placed on the top of the support shell 1, and a limit rod 5 is provided on one side of the positioning column 4 for limiting the angle of the workpiece; the clamping part is placed in the middle of the support shell 1, and the clamping part includes a pressure rod 1 7 and a pressure rod 2 8 placed on both sides of the bottom plate 3, and the pressure rod 1 7 and the pressure rod 2 8 are both inverted L-shaped structures, and the pressure rod 1 7 and the pressure rod 2 8 have a surface inclined structure facing the support shell 1, and a copper plate is installed on the outside of the inclined structure to prevent indentation on the workpiece during its fixing process, and the inclined surface is inclined downward in a direction away from the positioning column 4, and is used to press the workpiece when the moving groove 6 and the pressure rod 1 7 move toward the positioning column 4; the driving part is placed inside the support shell 1, and the driving part includes a gear assembly and a cylinder 14 for driving the gear to rotate.

[0024] It should be noted that, in the present invention, the flange portion of the valve body end of the pneumatic ball valve is sleeved on the outside of the positioning column 4, and the valve body is positioned by the positioning column 4. During installation, the limit rod 5 is passed through the mounting hole of the flange, and the cylinder 14 and the gear assembly drive the pressure rod 1 7 and the pressure rod 2 8 to move simultaneously toward the direction of the positioning column 4, so that the flange portion of the valve body is pressed and fixed by the inclined structure at the bottom of the pressure rod 1 7 and the pressure rod 2 8.

[0025] See also Figure 1 As shown, the bottom of the positioning column 4 is fixedly connected to the bottom plate 3 , the bottom plate 3 is threadedly connected to the supporting shell 1 , and the limiting rod 5 is fixed to the top of the bottom plate 3 .

[0026] It should be noted that a threaded hole is provided in the middle of the support shell 1 of the utility model, and a threaded rod that cooperates with the threaded hole is fixed to the bottom of the base plate 3. The base plate 3 is replaced according to the size of the valve body, so that the positioning column 4 and the limiting rod 5 can be replaced with appropriate sizes as needed, thereby increasing the applicability and flexibility of the device.

[0027] See also Figure 1 、 3As shown, a movable groove 6 is provided at the top of the support shell 1 and on both sides of each positioning column 4, and the pressure rod 1 7 and the pressure rod 2 8 are both connected to the movable groove 6. The bottom of the pressure rod 1 7 is fixedly connected to the movable rod 10, and the bottom of the pressure rod 2 8 is fixedly connected to the movable rod 2 17. The outer sides of the movable rod 2 17 and the movable rod 1 10 are both slidably connected to the limiting groove 9, and the limiting groove 9 is fixed to the support shell 1.

[0028] It should be noted that the limit groove 9 of the utility model serves as a height limiter for the movable rod 10 and the movable rod 2 17, so that the movable rod 10 and the movable rod 2 17 can only slide at a specified height, so that the pressure rod 1 7 and the pressure rod 2 8 can slide stably and horizontally, making it convenient to press and fix the valve body.

[0029] See also Figure 2 、 4 As shown, the gear assembly includes a transmission gear 12 rotatably mounted inside the support shell 1, and the outer side of the transmission gear 12 is meshedly connected with a rack 11 and a rack 2 13. The rack 11 rotates 180° around the axis of the transmission gear 12 and coincides with the rack 2 13. The rack 11 is fixedly connected to the moving rod 10, and the moving rod 2 17 is fixedly connected to the rack 2 13. The cylinder 14 is fixedly connected to the inner wall of the support shell 1, and the output end of the cylinder 14 is fixedly connected to the moving rod 10 through the support rod.

[0030] It should be noted that, when the utility model drives the pressure rod 1 7 and the pressure rod 2 8 to move toward the middle of the positioning column 4, the cylinder 14 drives the moving rod 10 to slide in the limit groove 9, and the moving rod 10 drives the pressure rod 1 7 to move in the moving groove 6. During this period, the rack 11 drives the transmission gear 12 to rotate, and the transmission gear 12 drives the rack 2 13 to move toward the positioning column 4, so that the flange part of the valve body is pressed and fixed on the bottom of the pressure rod 1 7 and the pressure rod 2 8, thereby realizing the synchronous and rapid fixation of multiple valve bodies.

[0031] See also Figure 2 、 4 As shown, the end of the support shell 1 is fixed with a side plate 2, and one side of the side plate 2 is fixed with a guide rod 15 that is slidably connected to the second moving rod 17. A spring 16 is provided on the outside of the guide rod 15 and between the second moving rod 17 and the side plate 2.

[0032] It should be noted that, in the present invention, when the cylinder 14 drives the moving rod 10 to move, the moving rod 2 17 compresses the spring 16, and the guide rod 15 moves toward the inside of the moving rod 2 17. When the moving rod 10 brought by the cylinder 14 is reset, the rack 11 drives the rack 2 13 to reset through the transmission gear 12, and the spring 16 assists the moving rod 2 17 to reset.

[0033] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one such feature.

[0035] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixing device for a pneumatic ball valve, characterized in that: include: Support shell (1); Positioning columns (4), a plurality of positioning columns (4) are provided and are placed on the top of the support shell (1), and a limiting rod (5) for limiting the angle of a workpiece is provided on one side of the positioning column (4); A clamping portion, the clamping portion is placed in the middle of the support shell (1), and the clamping portion includes a pressure rod 1 (7) and a pressure rod 2 (8) placed on both sides of the bottom plate (3), and the pressure rod 1 (7) and the pressure rod 2 (8) are inclined structures on the side facing the support shell (1), and are used to press the workpiece when the movable groove (6) and the pressure rod 1 (7) move toward the positioning column (4); A driving part is placed inside the supporting shell (1), and the driving part includes a gear assembly and a cylinder (14) for driving the gear to rotate.

2. A fixing device for a pneumatic ball valve according to claim 1, characterized in that: The bottom of the positioning column (4) is fixedly connected to a base plate (3), the base plate (3) is threadedly connected to the support shell (1), and the limiting rod (5) is fixedly connected to the top of the base plate (3).

3. A fixing device for a pneumatic ball valve according to claim 1, characterized in that: A movable groove (6) is provided at the top of the support shell (1) and on both sides of each positioning column (4), and the first pressing rod (7) and the second pressing rod (8) are both connected to the movable groove (6).

4. A fixing device for a pneumatic ball valve according to claim 1, characterized in that: The bottom of the pressure rod 1 (7) is fixedly connected to the moving rod 1 (10), and the bottom of the pressure rod 2 (8) is fixedly connected to the moving rod 2 (17). The outer sides of the moving rod 2 (17) and the moving rod 1 (10) are both slidably connected to the limiting groove (9), and the limiting groove (9) is fixedly connected to the support shell (1).

5. A fixing device for a pneumatic ball valve according to claim 4, characterized in that: The gear assembly includes a transmission gear (12) rotatably mounted inside a support shell (1); the outer side of the transmission gear (12) is meshedly connected with a rack 1 (11) and a rack 2 (13); the rack 1 (11) rotates 180 degrees around the axis of the transmission gear (12) to coincide with the rack 2 (13); the rack 1 (11) is fixedly connected to the moving rod 1 (10); and the moving rod 2 (17) is fixedly connected to the rack 2 (13).

6. A fixing device for a pneumatic ball valve according to claim 5, characterized in that: The cylinder (14) is fixedly connected to the inner wall of the support shell (1), and the output end of the cylinder (14) is fixedly connected to the moving rod (10) through the support rod.

7. A fixing device for a pneumatic ball valve according to claim 4, characterized in that: The end of the support shell (1) is fixedly connected to a side plate (2), one side of the side plate (2) is fixedly connected to a guide rod (15) that is slidably connected to the second moving rod (17), and a spring (16) is sleeved on the outside of the guide rod (15) and located between the second moving rod (17) and the side plate (2).

Images