Positioning clamp for ball machining

Abstract

The utility model discloses a positioning clamp for ball processing, belongs to the technical field of ball clamps, and solves the problem that when a conventional clamp is used for directly clamping a ball, even if an acting force is well controlled, the surface of the ball is still collided slightly, so that the ball is damaged. Comprising two mounting seats capable of moving in the same direction or back to back, a vertical electric sliding rail vertically and fixedly connected to the mounting seats, a vertical moving seat fixedly connected to a sliding seat in the vertical electric sliding rail, a mounting shell mounted on the vertical moving seat, and a suction cup assembly mounted on the mounting shell. When a ball body is clamped, an operator temporarily supports the ball body, and two groups of vertical electric sliding rails are close to each other, the vertical electric sliding rails adjust the height of the assembly, so that the suction cup assembly and the ball body are in the same level, then the suction cup assembly continues to be close to each other, the V-shaped rubber suction cup abuts against the spherical surface of the ball body to complete pre-clamping, and the suction cup assembly communicated with a vacuum suction pump generates suction force; and stable clamping of the ball is achieved.

Description

Technical Field

[0001] This utility model relates to the field of ball clamping technology, and in particular to a ball machining positioning clamp. Background Technology

[0002] The ball valve body is a key component of a ball valve. It is spherical with a circular through-hole in the center. Its function is to control the flow of fluid; rotating it 90 degrees opens or closes the valve. The ball's surface is smooth to reduce fluid resistance. Common materials include stainless steel and plastic, with the choice depending on the application. For example, stainless steel is used for high-temperature and high-pressure applications, while plastic is used for corrosive media. It is installed in the valve body and mates with the valve stem and seat, providing good sealing performance and easy operation. It is widely used in petroleum, chemical, and natural gas industries to achieve rapid opening and closing of fluid pipelines and flow regulation.

[0003] When processing a sphere, it is often necessary to use a clamp to hold it. However, most current clamps are made of hard materials. When clamping the sphere directly, even if the force is well controlled, some bumps and knocks will still occur on the surface of the sphere, causing damage.

[0004] Therefore, a sphere machining positioning fixture is proposed to solve or alleviate the above problems. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a sphere machining positioning fixture.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A sphere machining positioning fixture includes two mounting seats that can be displaced in the same direction or in opposite directions, a vertical electric slide rail fixedly connected to the mounting seats, a vertical moving seat fixedly connected to the slide base of the vertical electric slide rail, a mounting shell mounted on the vertical moving seat, and a suction cup assembly mounted on the mounting shell, wherein the suction cup assembly is used to connect to a vacuum pump.

[0008] Preferably, the vertical moving base is L-shaped and is fixedly connected to the mounting shell by a reinforcing frame. The mounting shell has a recessed groove on the side away from the reinforcing frame, and a through hole extending into the reinforcing frame is formed at the bottom of the recessed groove. The suction cup assembly is installed in the through hole and the recessed groove.

[0009] Preferably, it also includes a bottom rail, two slide rails fixedly connected to both sides of the top surface of the bottom rail, and two sets of slides slidably connected to the slide rails. The number of slides in each set includes two, and the mounting base is fixedly connected to the two slides in the same set.

[0010] Preferably, the bottom of the mounting base is fixedly connected to a lead screw nut located between two slides in the same group, a drive motor is fixedly connected to one side of the bottom rail, and a double-threaded lead screw is coaxially fixedly connected to the rotor shaft of the drive motor. The two lead screw nuts are respectively threaded to the two sections of threads on the double-threaded lead screw, and the two sections of threads on the double-threaded lead screw are arranged in opposite directions.

[0011] Preferably, the suction cup assembly includes a through-hole insert, a connecting cylinder that communicates with the insert and is embedded in the sink, a frustum-shaped suction cup shell that communicates with the connecting cylinder, a V-shaped rubber suction cup fixedly connected to the inner ring of the suction cup shell at the end away from the connecting cylinder, a filter screen fixedly connected to the connecting cylinder, and a connecting nut rotatably connected to the end of the insert away from the connecting cylinder.

[0012] Preferably, one end of the connecting nut is fixedly connected to a rotating cylinder coaxially arranged therewith, the outer ring of the rotating cylinder is fixedly connected to an annular protrusion, the end of the insert away from the connecting cylinder is provided with an inwardly recessed and annular groove, the outer ring of the insert is provided with an annular groove, the rotating cylinder is rotatably arranged within the insert, and the annular protrusion is rotatably arranged within the annular groove.

[0013] This utility model has the following beneficial effects:

[0014] When clamping a ball, the operator temporarily supports the ball, and the drive motor rotates the double-threaded screw. Because the screw nut is restricted by the slide and mounting base and cannot rotate, it moves along the length of the double-threaded screw. Since the two threads of the double-threaded screw rotate in opposite directions, the two screw nuts move in the same or opposite directions, causing the two sets of mounting bases to move in the same or opposite directions along the length of the slide rail at both ends of the bottom rail. When the two sets of mounting bases move the vertical electric slide rail closer together, the vertical electric slide rail adjusts the horizontal height of its vertical moving seat, reinforcing frame, mounting shell, and suction cup assembly, so that the suction cup assembly is at the same horizontal height as the ball to be processed. Subsequently, the two sets of suction cup assemblies continue to move closer, and the V-shaped rubber suction cups on them contact the spherical surface of the ball, completing the pre-clamping. The suction cup assembly connected to the vacuum pump generates suction, firmly adsorbing the ball and achieving stable clamping. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a cross-sectional view of the suction cup assembly in this utility model;

[0019] Figure 4 for Figure 3 Enlarged view of point B in the middle.

[0020] In the diagram: 1. Bottom rail; 2. Slide rail; 3. Drive motor; 4. Double threaded screw; 5. Screw nut; 6. Mounting base; 7. Slide carriage; 8. Vertical electric slide rail; 9. Vertical moving base; 10. Reinforcing frame; 11. Mounting shell; 12. Through hole; 13. Suction cup shell; 14. V-shaped rubber suction cup; 15. Connecting cylinder; 16. Filter screen; 17. Insert cylinder; 18. Connecting nut; 19. Insert groove; 20. Annular groove; 21. Rotating cylinder; 22. Annular convex strip. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, the terms "first," "second," and "third" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] A sphere machining positioning fixture, such as Figures 1 to 4 As shown, the system includes a bottom rail 1, two slide rails 2 fixedly connected to both sides of the top surface of the bottom rail 1, two sets of slides 7 slidably connected to the slide rails 2, two mounting seats 6 that can move in the same or opposite directions, a vertical electric slide rail 8 fixedly connected to the mounting seat 6, a vertical moving seat 9 fixedly connected to the slide seat in the vertical electric slide rail 8, a mounting shell 11 mounted on the vertical moving seat 9, and a suction cup assembly mounted on the mounting shell 11. The suction cup assembly is used to connect to a vacuum pump. There are two slides 7 in each set. The mounting seat 6 is fixedly connected to the two slides 7 in the same set. The bottom of the mounting seat 6 is fixedly connected to a screw nut 5 located between the two slides 7 in the same set. A drive motor 3 is fixedly connected to one side of the bottom rail 1. The rotor shaft of the drive motor 3 is coaxially fixedly connected to a double-threaded screw 4. The two screw nuts 5 are respectively threaded to the two sections of threads on the double-threaded screw 4. The two sections of threads on the double-threaded screw 4 are set in opposite directions.

[0028] The vertical moving base 9 is L-shaped and is fixedly connected to the mounting shell 11 via the reinforcing frame 10. A recessed groove is provided on the side of the mounting shell 11 away from the reinforcing frame 10. A through hole 12 penetrating into the reinforcing frame 10 is provided at the bottom of the recessed groove. The suction cup assembly is installed in the through hole 12 and the recessed groove. The suction cup assembly includes an insert 17 that can penetrate the through hole 12, a connecting cylinder 15 that communicates with the insert 17 and is embedded in the recessed groove, a frustum-shaped suction cup shell 13 that communicates with the connecting cylinder 15, and a V-shaped rubber band fixedly connected to the inner ring of the suction cup shell 13 at the end away from the connecting cylinder 15. The device includes a suction cup 14, a filter screen 16 fixedly connected inside the connecting cylinder 15, and a connecting nut 18 rotatably connected to the end of the insert 17 away from the connecting cylinder 15. One end of the connecting nut 18 is fixedly connected to a rotating cylinder 21 coaxially arranged therewith. An annular protrusion 22 is fixedly connected to the outer ring of the rotating cylinder 21. The end of the insert 17 away from the connecting cylinder 15 has an inwardly recessed and annular groove 19. An annular groove 20 is formed on the outer ring of the groove 19. The rotating cylinder 21 is rotatably arranged within the groove 19, and the annular protrusion 22 is rotatably arranged within the annular groove 20.

[0029] When the suction cup assembly needs to be connected to the vacuum pump via the metal bellows, the vacuum pump is connected to the metal bellows via a pipe connector. The other end of the metal bellows can be inserted into the inner ring of the connecting nut 18. Guided by the internal thread of the inner ring of the connecting nut 18, the other end of the metal bellows can gradually extend into the insert 17. This process only requires the operator to manually rotate the connecting nut 18. The connecting nut 18 achieves its rotational connection with the insert 17 through the cooperation of the rotating cylinder 21 and the groove 19, and the cooperation of the annular protrusion 22 and the annular groove 20.

[0030] In actual ball clamping, this invention only requires the operator to temporarily support the ball before the drive motor 3 can operate. The drive motor 3 drives the double-threaded screw 4 to rotate. Since the screw nut 5 is restricted by the slide 7 and mounting base 6, it cannot rotate. Therefore, during the rotation of the double-threaded screw 4, the screw nut 5 will displace along the length of the double-threaded screw 4. Because the two threads on the double-threaded screw 4 rotate in opposite directions, the two screw nuts 5 will displace in the same or opposite directions. Consequently, the two mounting bases 6 will displace in the same or opposite directions along the length of the slide rail 2 at both ends of the bottom rail 1 via the two sets of slides 7. When the two sets of mounting bases 6 drive the two vertical electric slide rails 8 to move towards each other... When the vertical electric slide rail 8 moves the vertical moving seat 9, the reinforcing frame 10, and the mounting shell 11 closer together, the suction cup assemblies on both sides also move closer together. During this process, the vertical electric slide rail 8 adjusts the horizontal height of the vertical moving seat 9, the reinforcing frame 10, the mounting shell 11, and the suction cup assemblies located on its slide, so that the suction cup assemblies can be at the same horizontal height as the ball to be processed. Then, after the two sets of suction cup assemblies continue to move closer, the V-shaped rubber suction cup 14 on the suction cup assembly can come into contact with the spherical surface of the ball. At this time, the suction cup assemblies on both sides complete the pre-clamping action of the ball through the V-shaped rubber suction cup 14. The suction cup assembly connected to the vacuum suction pump can generate suction force, thereby ensuring that the suction cup assembly and the ball are firmly adsorbed, so that the ball can be stably clamped.

[0031] The filter screen 16 in the suction cup assembly can block debris on the surface of the ball when the vacuum pump is working, preventing it from entering the vacuum pump. If debris cleaning is required, the vacuum pump can be reversed to generate airflow to blow away the debris stuck on the filter screen 16. In addition, this fixture is only suitable for machining the valve stem on the ball, and not for machining the surface of the ball.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sphere machining positioning fixture, characterized in that, It includes two mounting bases (6) that can be displaced in the same direction or opposite directions, a vertical electric slide rail (8) fixedly connected to the mounting base (6), a vertical moving seat (9) fixedly connected to the slide in the vertical electric slide rail (8), a mounting shell (11) mounted on the vertical moving seat (9), and a suction cup assembly mounted on the mounting shell (11), the suction cup assembly being used to connect to a vacuum pump.

2. The sphere machining positioning fixture according to claim 1, characterized in that, The vertical moving seat (9) is L-shaped. The vertical moving seat (9) is fixedly connected to the mounting shell (11) through the reinforcing frame (10). The mounting shell (11) has a sink groove on the side away from the reinforcing frame (10). The bottom of the sink groove has a through hole (12) that extends into the reinforcing frame (10). The suction cup assembly is installed in the through hole (12) and the sink groove.

3. A sphere machining positioning fixture according to claim 1, characterized in that, It also includes a bottom rail (1), two slide rails (2) fixedly connected to both sides of the top surface of the bottom rail (1), and two sets of slides (7) slidably connected to the slide rails (2). The number of each set of slides (7) includes two, and the mounting base (6) is fixedly connected to the two slides (7) in the same set.

4. A sphere machining positioning fixture according to claim 3, characterized in that, The mounting base (6) is fixedly connected to a screw nut (5) located between two slides (7) in the same group. A drive motor (3) is fixedly connected to one side of the bottom rail (1). A double threaded screw (4) is fixedly connected to the rotor shaft of the drive motor (3) on the same axis. The two screw nuts (5) are respectively threaded to the two sections of threads on the double threaded screw (4). The two sections of threads on the double threaded screw (4) are set in opposite directions.

5. A sphere machining positioning fixture according to claim 2, characterized in that, The suction cup assembly includes a sleeve (17) that can pass through the through hole (12), a connecting sleeve (15) that communicates with the sleeve (17) and is embedded in the sink, a suction cup shell (13) that communicates with the connecting sleeve (15) and is in the shape of a frustum, a V-shaped rubber suction cup (14) that is fixedly connected to the inner ring of the suction cup shell (13) away from the connecting sleeve (15), a filter screen (16) that is fixedly connected to the connecting sleeve (15), and a connecting nut (18) that is rotatably connected to the end of the sleeve (17) away from the connecting sleeve (15).

6. A sphere machining positioning fixture according to claim 5, characterized in that, One end of the connecting nut (18) is fixedly connected to a rotating cylinder (21) coaxially arranged therewith. The outer ring of the rotating cylinder (21) is fixedly connected to an annular protrusion (22). The end of the insert (17) away from the connecting cylinder (15) is provided with an inwardly recessed and annular groove (19). The outer ring of the groove (19) is provided with an annular groove (20). The rotating cylinder (21) is rotatably arranged within the groove (19), and the annular protrusion (22) is rotatably arranged within the annular groove (20).

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