Valve body forge piece machining clamp

Abstract

The utility model belongs to the technical field of valve body machining, and particularly relates to a valve body forge piece machining clamp which comprises a bottom plate, two supporting plates are fixedly connected to the position, close to the rear side corner, of the top face of the bottom plate, a transverse plate is rotationally connected between the two supporting plates, and two supporting assemblies are arranged between the transverse plate and the bottom plate. A plurality of rotating shafts are uniformly and rotatably connected to the top surface of the transverse plate, connecting blocks are assembled on the side walls of the rotating shafts, ejector rods are fixedly connected to the side walls of the connecting blocks, the ejector rods are arranged in an L shape, and a transmission assembly is arranged on the bottom surface of the transverse plate. The supporting assembly comprises a screw rod movably connected to the top face of the bottom plate, two clamping grooves are formed in the front side wall of the transverse plate, the screw rod is matched with the clamping grooves, and nuts are in threaded connection with the portions, located on the two sides of the transverse plate, of the side wall of the screw rod respectively. The machining device can conveniently machine a plurality of end faces of the valve body, and is high in flexibility and wide in application range.

Description

Technical Field

[0001] This utility model belongs to the field of valve body processing technology, specifically relating to a valve body forging processing fixture. Background Technology

[0002] Valve body forgings are forged parts used to manufacture valve bodies. The valve body is the main part of a valve, responsible for bearing the pressure of the medium and controlling its flow. Forgings are metal parts with good mechanical properties and structural strength obtained by heating and forging metal. Valve bodies generally have three opening positions, two of which serve as pipe connection surfaces, and the third as the connection position between the valve stem and the valve handle. However, to ensure the flatness of the opening end faces, they need to be ground.

[0003] Since the three openings on the valve body are located in three directions, traditional clamps often use different clamps to fix valve bodies of different diameters in different directions when fixing them. Although this can achieve the purpose of grinding, it is not possible to use the clamps to turn the valve body in different directions, making it inconvenient to process multiple openings on the valve body at one time and reducing the flexibility of the clamps. Utility Model Content

[0004] The purpose of this invention is to provide a valve body forging machining fixture that can conveniently process multiple end faces of the valve body, offering high flexibility and wide applicability.

[0005] The specific technical solution adopted in this utility model is as follows:

[0006] A valve body forging machining fixture includes a base plate, two support plates fixedly connected to the top surface of the base plate near the rear corner, a horizontal plate rotatably connected between the two support plates, two support assemblies between the horizontal plate and the base plate, a plurality of rotating shafts evenly rotatably connected to the top surface of the horizontal plate, connecting blocks mounted on the side walls of each rotating shaft, and top rods fixedly connected to the side walls of each connecting block, the top rods being L-shaped, and a transmission assembly provided on the bottom surface of the horizontal plate.

[0007] The support assembly includes a screw rod movably connected to the top surface of the base plate. Two slots are provided on the front side wall of the horizontal plate. The screw rod is adapted to the slots. Nuts are threadedly connected to the side walls of the screw rod on both sides of the horizontal plate.

[0008] The transmission assembly includes a first gear fixedly connected to the bottom end of the rotating shaft, a second gear rotatably connected to the center of the bottom surface of the horizontal plate, the first gear meshing with the second gear, a protective cover fixedly connected to the bottom surface of the horizontal plate, a motor fixedly connected to the bottom surface of the protective cover, and the output shaft of the motor passing through the protective cover and fixedly connected to the second gear.

[0009] The support plate has bolts threaded to its side wall, and the horizontal plate has threaded holes corresponding to the bolts on its side wall, with the bolts and threaded holes being compatible.

[0010] A circular shell is fixedly connected to the top surface of the horizontal plate. Several arc-shaped grooves are evenly opened on the top surface of the circular shell, and the top rod passes through the arc-shaped grooves.

[0011] Each of the top rod sidewalls is fixedly connected with a rubber ring.

[0012] The technical effects achieved by this utility model are as follows:

[0013] This utility model provides a valve body forging machining fixture. Through the cooperation of a base plate, support plate, horizontal plate, push rod, support assembly, and transmission assembly, the expansion of the push rod can expand and support the valve body opening. It can also adapt to valve bodies with different inner diameters. Furthermore, by changing the horizontal or vertical position of the horizontal plate, the valve body end face in different directions can be machined. Compared with traditional fixtures, this solution is more flexible and more practical. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model embodiment;

[0015] Figure 2 This is a partial structural schematic diagram of this utility model embodiment;

[0016] Figure 3 This is a bottom view structural diagram of this utility model embodiment;

[0017] Figure 4 This is a bottom view partial structural schematic diagram of this utility model embodiment;

[0018] Figure 5 This is a practical embodiment. Figure 1 Enlarged view of point A in the image.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Base plate; 2. Support plate; 3. Horizontal plate; 4. Screw; 5. Slot; 6. Nut; 7. Shaft; 8. Connecting block; 9. Top rod; 10. First gear; 11. Second gear; 12. Protective cover; 13. Motor; 14. Screw hole; 15. Bolt; 16. Round shell; 17. Arc groove; 18. Rubber ring. Detailed Implementation

[0021] To make the purpose and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific implementations of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0022] like Figures 1-5 As shown, a valve body forging processing fixture includes a base plate 1. Two support plates 2 are fixedly connected to the top surface of the base plate 1 near the rear corner. A horizontal plate 3 is rotatably connected between the two support plates 2 by means of a shaft connection, which facilitates the rotation of the horizontal plate 3 around the shaft. Two support components are provided between the horizontal plate 3 and the base plate 1. Several rotating shafts 7 are evenly rotatably connected to the top surface of the horizontal plate 3. Connecting blocks 8 are mounted on the side walls of the rotating shafts 7. Top rods 9 are fixedly connected to the side walls of the connecting blocks 8. The top rods 9 are L-shaped. A transmission component is provided on the bottom surface of the horizontal plate 3.

[0023] like Figure 1 and Figure 5 As shown, the support assembly includes a screw 4 movably connected to the top surface of the base plate 1. Two slots 5 are opened on the front side wall of the horizontal plate 3. The screw 4 is adapted to the slots 5. Nuts 6 are threadedly connected to the side walls of the screw 4 on both sides of the horizontal plate 3.

[0024] When the horizontal plate 3 needs to be moved from a vertical state to a horizontal state, the horizontal plate 3 is first pulled up, then the screw 4 is inserted into the slot 5, and the upper nut 6 is tightened to support and fix the horizontal plate 3.

[0025] like Figures 2-4 As shown, the transmission assembly includes a first gear 10 fixedly connected to the bottom end of the rotating shaft 7, a second gear 11 rotatably connected to the center of the bottom surface of the horizontal plate 3, the first gear 10 and the second gear 11 meshing, a protective cover 12 fixedly connected to the bottom surface of the horizontal plate 3, a motor 13 fixedly connected to the bottom surface of the protective cover 12, and the output shaft of the motor 13 passing through the protective cover 12 and fixedly connected to the second gear 11.

[0026] Specifically, the first gear 10 is a small gear and the second gear 11 is a large gear. When the second gear 11 rotates, it can drive the first gear 10 to rotate synchronously in the same direction, which in turn drives the push rod 9 to rotate in the same direction, so that the push rod 9 can synchronously press against the inner wall of the valve body. Moreover, it can be used for valve bodies with different inner diameters, and has high flexibility.

[0027] like Figure 1 and Figure 5 As shown, the side wall of the support plate 2 is threaded with bolts 15, and the side wall of the horizontal plate 3 has screw holes 14 corresponding to the bolts 15. The bolts 15 and screw holes 14 are compatible. The horizontal plate 3 can be fixed in the vertical state by bolts 15. The structure is simple and has good stability. In actual processing, it is only necessary to manually or with a wrench to turn the bolts 15 to complete the fixing or unfixing.

[0028] like Figure 1As shown, a circular shell 16 is fixedly connected to the top surface of the horizontal plate 3. Several arc-shaped grooves 17 are evenly opened on the top surface of the circular shell 16, and the top rod 9 passes through the arc-shaped grooves 17. The circular shell 16 is designed to facilitate the stability of the valve body during placement, preventing the valve body from tilting due to the influence of the connecting block 8. It also protects the connecting block 8 during processing, extending its lifespan. In addition, the circular shell 16 is designed to be detachable, making it easy to disassemble and maintain.

[0029] like Figure 1 and Figure 2 As shown, rubber rings 18 are fixedly connected to the side walls of the push rod 9. By setting the rubber rings 18, the threads or surface of the inner wall of the valve body can be protected, reducing scratches caused by the push rod 9. In addition, the rubber rings 18 can also increase the friction between the two.

[0030] The working principle of this utility model is as follows: When it is necessary to clamp the valve body, first place the valve body vertically on the round shell 16 and insert it into the push rod 9. Then start the motor 13 to drive the second gear 11 to rotate. The second gear 11 meshes with the first gear 10 and drives the push rod 9 to rotate. Utilizing the L-shaped structure of the push rod 9, it rotates outward while abutting against the inner wall of the valve body to fix the valve body. Then the end face of the valve body is processed.

[0031] After the end face of one end of the valve body is machined, loosen the nut 6 on the upper side of the horizontal plate 3 to release the screw 4, and then remove the screw 4 from the slot 5. The horizontal plate 3 is rotated downward around the axis, and then the bolt 15 is rotated to insert it into the screw hole 14 for vertical fixation of the horizontal plate 3. At the same time, the other end face of the valve body is facing upward, and the end face is machined again, which effectively improves the machining flexibility of the valve body.

[0032] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the art.

Claims

1. A fixture for machining valve body forgings, characterized in that: Includes a base plate (1), on which two support plates (2) are fixedly connected near the rear corner of the top surface of the base plate (1), and a horizontal plate (3) is rotatably connected between the two support plates (2). Two support components are provided between the horizontal plate (3) and the base plate (1). Several rotating shafts (7) are evenly rotatably connected to the top surface of the horizontal plate (3). Each rotating shaft (7) is equipped with a connecting block (8) on its side wall. Each connecting block (8) is fixedly connected with a top rod (9) on its side wall. The top rod (9) is L-shaped. A transmission component is provided on the bottom surface of the horizontal plate (3).

2. The valve body forging machining fixture according to claim 1, characterized in that: The support assembly includes a screw (4) movably connected to the top surface of the base plate (1). The front side wall of the horizontal plate (3) has two slots (5). The screw (4) is adapted to the slots (5). Nuts (6) are threadedly connected to the side walls of the screw (4) on both sides of the horizontal plate (3).

3. A valve body forging machining fixture according to claim 1, characterized in that: The transmission assembly includes a first gear (10) fixedly connected to the bottom end of the rotating shaft (7), a second gear (11) rotatably connected to the center of the bottom surface of the horizontal plate (3), the first gear (10) meshing with the second gear (11), a protective cover (12) fixedly connected to the bottom surface of the horizontal plate (3), a motor (13) fixedly connected to the bottom surface of the protective cover (12), and the output shaft of the motor (13) passing through the protective cover (12) and fixedly connected to the second gear (11).

4. A valve body forging machining fixture according to claim 1, characterized in that: The support plate (2) has a bolt (15) threadedly connected to its side wall, and the side wall of the cross plate (3) has a screw hole (14) corresponding to the bolt (15), and the bolt (15) and the screw hole (14) are compatible.

5. A valve body forging machining fixture according to claim 1, characterized in that: A circular shell (16) is fixedly connected to the top surface of the horizontal plate (3). Several arc-shaped grooves (17) are evenly opened on the top surface of the circular shell (16), and the top rod (9) passes through the arc-shaped grooves (17).

6. A valve body forging machining fixture according to claim 1, characterized in that: Each of the top rods (9) has a rubber ring (18) fixedly connected to its side wall.

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