Coaxial assembling and positioning tool for welding ball valve assembly

Abstract

The utility model discloses a coaxial assembling and positioning tool for welding a ball valve assembly, which comprises a support, a first positioning piece, a second positioning piece, a first positioning cylinder, a second positioning cylinder, a third positioning cylinder, a first valve body, a second valve body and a supporting member, the upper end of the support is fixedly connected with the first positioning piece, one end of the first positioning piece is clamped with the second positioning piece, and the other end of the first positioning piece is clamped with the third positioning cylinder. A first positioning cylinder is welded to the lower end of the second positioning piece, a second positioning cylinder is clamped to the right side of the first positioning cylinder, a third positioning cylinder is clamped to the right side of the second positioning cylinder, the third positioning cylinder and the first positioning cylinder are symmetrically arranged, and the first valve body and the second valve body are arranged on the outer wall of the second positioning cylinder in a sleeving mode. Compared with the prior art, the valve body I and the valve body II can be extremely accurately positioned and fixed, the coaxiality of the valve body I and the valve body II is always kept in the welding process, so that the welding quality is obviously improved, the welding defect caused by deviation of parts can be avoided, and the sealing property and the durability of the ball valve are greatly enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valve assembly welding, in particular to a coaxial assembly positioning tool for ball valve assembly welding. Background Art

[0002] A ball valve is usually composed of components such as a valve body, a valve ball, a valve stem, and a valve seat. The valve body serves as the outer shell of the ball valve, providing support and protection for the internal components. The valve body of a ball valve is generally composed of three parts, namely the left and right valve bodies and the middle valve body. The valve ball, valve stem and other devices are installed in the middle valve body, while the left and right valve bodies are connected to the pipeline through flanges. In the production process of ball valve components, welding of the valve body is a key process, and the quality of welding directly affects the performance and service life of the ball valve.

[0003] Traditional valve body welding methods often rely on some simple positioning tools, but most of these tools have single functions and poor adaptability. Some tools are not flexible enough during positioning and cannot ensure the coaxiality of the valve body, resulting in unsatisfactory welding accuracy. Utility Model Content

[0004] The purpose of the utility model is to provide a coaxial assembly and positioning tool for welding a ball valve assembly, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a coaxial assembly positioning tool for welding a ball valve assembly, comprising a bracket, a positioning member 1, a positioning member 2, a positioning cylinder 1, a positioning cylinder 2, a positioning cylinder 3, a valve body 1, a valve body 2 and a supporting member, the upper end of the bracket is fixedly connected to the positioning member 1, one end of the positioning member 1 is clamped with the positioning member 2, the lower end of the positioning member 2 is welded with the positioning cylinder 1, the right side of the positioning cylinder 1 is clamped with the positioning cylinder 2, the right side of the positioning cylinder 2 is clamped with the positioning cylinder 3, the positioning cylinder 3 is symmetrically arranged with the positioning cylinder 1, the valve body 1 and the valve body 2 are both sleeved on the outer wall of the positioning cylinder 2, and the lower end of the bracket is provided with a supporting member.

[0006] In a preferred embodiment, the first positioning member includes a positioning rod and a positioning block, the positioning rod is L-shaped, and the positioning block is provided on one side of the upper end of the positioning rod and is integrally formed with the positioning rod.

[0007] In a preferred embodiment: the positioning block and the second positioning member include a positioning frame and a fixed block, the positioning frame is a U-shaped frame, one end of the positioning frame is welded to the fixed block, and the fixed block is welded to the upper end of the positioning cylinder.

[0008] In a preferred embodiment, the number of the valve bodies 2 is two and they are respectively arranged on both sides of the valve body 1, and the positioning cylinder 1 and the positioning cylinder 3 are both T-shaped structures.

[0009] In a preferred embodiment: the supporting member includes a base, a ball, a cavity, a limit plate and a spring, the base is placed on the lower end of the bracket, the upper end of the base is movably provided with a plurality of equally distributed balls, the base is provided with a plurality of cavities corresponding to the positions of the balls, the lower end of the ball is rotatably connected to the limit plate, the limit plate is slidably connected to the inner wall of the cavity, and a spring is provided between the lower end of the limit plate and the bottom wall of the cavity.

[0010] In a preferred embodiment, a hook is fixedly connected to one side of the base, a limiting column is fixedly connected to the lower end wall of the bracket, and the end of the hook away from the base is connected to the limiting column.

[0011] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0012] The utility model arranges the bracket, the positioning member 1, the positioning member 2, the positioning cylinder 1, the positioning cylinder 2 and the positioning cylinder 3, and under the limiting action of the positioning cylinder 1, the positioning cylinder 2 and the positioning cylinder 3, the valve body 1 and the valve body 2 on the positioning cylinder 2 can be positioned and fixed extremely accurately, ensuring that they always maintain coaxiality during the welding process, thereby significantly improving the welding quality. This precise positioning function avoids welding defects caused by component offset, and greatly enhances the sealing and durability of the ball valve.

[0013] The utility model enables the tooling to be moved and adjusted in a flexible and stable manner during operation by setting the balls in the supporting member. The balls can easily realize the smooth movement of the tooling, which not only reduces the workload of the operator but also improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of the positioning tooling of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the entire positioning tool of the present invention;

[0017] Figure 3 This utility model Figure 2 A schematic diagram of the enlarged structure at point A;

[0018] Figure 4 This is a schematic diagram of the connection structure of the positioning tube 1, the positioning tube 2 and the positioning tube 3 of the utility model;

[0019] Figure 5 This is a structural diagram of a positioning cylinder of the present utility model;

[0020] Figure 6 This is a schematic diagram of the internal cross-sectional structure of the base of the utility model;

[0021] In the figure: 1. bracket; 2. positioning member 1; 21. positioning rod; 22. positioning block; 3. positioning member 2; 31. positioning frame; 32. fixing block; 4. positioning cylinder 1; 5. positioning cylinder 2; 6. positioning cylinder 3; 7. valve body 1; 8. valve body 2; 9. base; 10. ball; 11. cavity; 12. limit plate; 13. spring; 14. hook; 15. limit column. 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 Figures 1-6 The utility model provides a technical solution: a coaxial assembly positioning tool for welding a ball valve assembly, comprising a bracket 1, a positioning piece 2, a positioning piece 2 3, a positioning cylinder 1 4, a positioning cylinder 2 5, a positioning cylinder 3 6, a valve body 1 7, a valve body 2 8 and a supporting member, the upper end of the bracket 1 is fixedly connected to the positioning piece 1 2, one end of the positioning piece 1 2 is clamped with the positioning piece 2 3, the lower end of the positioning piece 2 3 is welded with the positioning cylinder 1 4, the right side of the positioning cylinder 1 4 is clamped with the positioning cylinder 2 5, the right side of the positioning cylinder 2 5 is clamped with the positioning cylinder 3 6, the positioning cylinder 3 6 and the positioning cylinder 1 4 are symmetrically arranged, the valve body 1 7 and the valve body 2 8 are both sleeved on the outer wall of the positioning cylinder 2 5, and the lower end of the bracket 1 is provided with a supporting member.

[0024] After the valve body 1 is in the state of being rotated, the valve body 1 is rotated and the valve body 2 is rotated, and the valve body 1 is rotated and the valve body 2 is rotated, and the valve body 1 is rotated and the valve body 2 is rotated, the valve body 1 is rotated and the valve body 2 is rotated.

[0025] The positioning member 2 includes a positioning rod 21 and a positioning block 22. The positioning rod 21 is L-shaped. The positioning block 22 is arranged on one side of the upper end of the positioning rod 21 and is integrally formed with the positioning rod 21.

[0026] The positioning block 22 and the positioning member 2 3 include a positioning frame 31 and a fixing block 32 . The positioning frame 31 is a U-shaped frame. One end of the positioning frame 31 is welded to the fixing block 32 . The fixing block 32 is welded to the upper end of the positioning cylinder 1 4 .

[0027] There are two valve bodies 8, which are respectively arranged on both sides of valve body 1 7. Both positioning cylinder 1 4 and positioning cylinder 3 6 are T-shaped structures.

[0028] The supporting member includes a base 9, a ball 10, a cavity 11, a limit plate 12 and a spring 13. The base 9 is placed on the lower end of the bracket 1. The upper end of the base 9 is movably provided with a plurality of equally distributed balls 10. The base 9 is provided with a plurality of cavities 11 corresponding to the positions of the balls 10. The lower end of the ball 10 is rotatably connected to the limit plate 12. The limit plate 12 is slidably connected to the inner wall of the cavity 11. A spring 13 is provided between the lower end of the limit plate 12 and the bottom end wall of the cavity 11.

[0029] When the valve body 7 is sleeved on the positioning cylinder, the ball 10 can move up and down according to the size of the valve body 7, thereby increasing the support of the valve body 7 when it moves, making it easier and more convenient to adjust the position of the valve body 7.

[0030] A hook 14 is fixedly connected to one side of the base 9 , a limiting column 15 is fixedly connected to the lower end wall of the bracket 1 , and the end of the hook 14 away from the base 9 is connected to the limiting column 15 .

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A coaxial assembly and positioning tool for welding a ball valve assembly, characterized by: It comprises a bracket (1), a positioning member 1 (2), a positioning member 2 (3), a positioning cylinder 1 (4), a positioning cylinder 2 (5), a positioning cylinder 3 (6), a valve body 1 (7), a valve body 2 (8) and a supporting member, wherein the upper end of the bracket (1) is fixedly connected with the positioning member 1 (2), one end of the positioning member 1 (2) is clamped with the positioning member 2 (3), the lower end of the positioning member 2 (3) is welded with the positioning cylinder 1 (4), the right side of the positioning cylinder 1 (4) is clamped with the positioning cylinder 2 (5), the right side of the positioning cylinder 2 (5) is clamped with the positioning cylinder 3 (6), the positioning cylinder 3 (6) and the positioning cylinder 1 (4) are symmetrically arranged, the valve body 1 (7) and the valve body 2 (8) are both sleeved on the outer wall of the positioning cylinder 2 (5), and the lower end of the bracket (1) is provided with a supporting member.

2. The coaxial assembly and positioning tool for welding a ball valve assembly according to claim 1, characterized in that: The positioning member 1 (2) comprises a positioning rod (21) and a positioning block (22), the positioning rod (21) is L-shaped, and the positioning block (22) is arranged on one side of the upper end of the positioning rod (21) and is integrally formed with the positioning rod (21).

3. The coaxial assembly and positioning tool for welding a ball valve assembly according to claim 1, characterized in that: The second positioning member (3) comprises a positioning frame (31) and a fixing block (32), wherein the positioning frame (31) is a U-shaped frame, one end of the positioning frame (31) is welded to the fixing block (32), and the fixing block (32) is welded to the upper end of the first positioning cylinder (4).

4. The coaxial assembly and positioning tool for welding a ball valve assembly according to claim 1, characterized in that: There are two valve bodies 2 (8), which are respectively arranged on both sides of valve body 1 (7). Both positioning cylinder 1 (4) and positioning cylinder 3 (6) are T-shaped structures.

5. The coaxial assembly and positioning tool for welding a ball valve assembly according to claim 1, characterized in that: The supporting member comprises a base (9), a ball (10), a cavity (11), a limit plate (12) and a spring (13); the base (9) is placed on the lower end of the bracket (1); the upper end of the base (9) is movably provided with a plurality of equally distributed balls (10); the base (9) is provided with a plurality of cavities (11) corresponding to the positions of the balls (10); the lower end of the ball (10) is rotatably connected to the limit plate (12); the limit plate (12) is slidably connected to the inner wall of the cavity (11); and a spring (13) is provided between the lower end of the limit plate (12) and the bottom end wall of the cavity (11).

6. The coaxial assembly and positioning tool for welding a ball valve assembly according to claim 5, characterized in that: A hook (14) is fixedly connected to one side of the base (9), a limiting column (15) is fixedly connected to the lower end wall of the bracket (1), and an end of the hook (14) away from the base (9) is connected to the limiting column (15).

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