Valve cover welding part and clamping device

Abstract

The utility model provides a bonnet weldment and a clamping device, the bonnet weldment comprises a bonnet upper part, a metal pipe and a bonnet, the upper end of the metal pipe is in socket welding with the bonnet upper part, a cavity is arranged in the bonnet, the upper side of the bonnet is provided with a groove communicated with the cavity, and the lower end of the metal pipe is in socket welding with the groove. An inner groove is formed in the inner wall of the groove. The inner groove is located on the front side of the welding position of the metal pipe and the upper portion of the valve deck in the inner machining direction of the metal pipe, and space can be provided for movement of the cutter row through the inner groove by arranging the inner groove on the front side of the welding position of the metal pipe and the upper portion of the valve deck.

Description

Technical Field

[0001] The utility model relates to the technical field of processing, in particular to a valve cover welding piece and a clamping device. Background Art

[0002] The valve end cap is a component used to close the valve, usually installed at one end of the valve. It can be connected to the valve body by threaded connection or flange connection to form a sealed closed space, thereby preventing the medium from leaking or external impurities from entering the valve.

[0003] Conventional valve cover welded parts are welded together by the valve cover upper part, steel pipe and valve cover by socket welding. During processing, the welded parts must be fully welded and the socket structure produced by welding must be removed by boring.

[0004] When using a vertical lathe or a boring machine spindle to countersink the end surface of a tool bar to remove the socket structure produced by welding, a tool row arranged at the end of the tool bar is inserted into the steel pipe to bore the hole to remove the socket structure produced by welding. However, the space inside the steel pipe is small, which greatly restricts the movement of the tool row and is not conducive to the work of the tool row. Utility Model Content

[0005] Therefore, the technical problem to be solved by the utility model is that when the vertical lathe and boring machine spindle are used to countersink the end surface of the tool bar to remove the socket structure produced by welding, the movement of the tool row is restricted, which is not conducive to the work of the tool row.

[0006] To this end, the utility model provides a valve cover welding part, including:

[0007] Upper part of valve cover;

[0008] A metal pipe, one end of which is socket-welded to the upper portion of the valve cover;

[0009] A valve cover, wherein a cavity is provided inside the valve cover, and a groove communicating with the cavity is provided on the upper side of the valve cover; the other end of the metal pipe is socket welded to the groove;

[0010] An inner groove is provided on the inner wall of one end of the metal pipe connected to the groove, or an inner groove is provided on the inner wall of the groove.

[0011] Optionally, along the inner processing direction of the metal tube, the inner groove is located in front of the welding point between the metal tube and the upper part of the valve cover.

[0012] Optionally, the inner groove is an annular groove.

[0013] Optionally, the inner groove diameter is ≥120 mm, and the groove width is ≥20 mm.

[0014] Optionally, the inner groove has a diameter of 120 mm and a groove width of 20 mm.

[0015] Optionally, along the inner processing direction of the metal tube, a chamfer is provided at the front edge of the inner groove.

[0016] Optionally, a socket end is provided at the groove, and the inner groove is provided on the inner side of the socket end.

[0017] A clamping device, used to fix the valve cover welding part mentioned above, the clamping device comprises:

[0018] substrate;

[0019] Two groups of clamping components are arranged on both sides of the base plate; the two groups of clamping components clamp the upper part of the valve cover in the valve cover welding part and the valve cover respectively.

[0020] Optionally, the clamping assembly comprises:

[0021] A support block, the bottom of which is fixed to the base plate;

[0022] A pressing plate, arranged on the top of the supporting block, wherein the valve cover welding piece or the valve cover is clamped between the pressing plate and the base plate;

[0023] A fixing rod has one end fixed to the base plate and the other end connected to the pressing plate.

[0024] Optionally, the clamping device further comprises a gasket, which is suitable for being arranged between the upper portion of the valve cover and the base plate.

[0025] The valve cover welding part and clamping device provided by the utility model have the following advantages:

[0026] 1. The utility model provides a valve cover welding part, including a valve cover upper part, a metal tube and a valve cover, the upper end of the metal tube is socket-welded to the valve cover upper part, a cavity is arranged inside the valve cover, a groove connecting the cavity is arranged on the upper side of the valve cover, and the lower end of the metal tube is socket-welded to the groove.

[0027] The valve cover welding part of this structure has an inner groove on the inner wall of the groove, and along the inner processing direction of the metal tube, the inner groove is located in front of the welding point between the metal tube and the upper part of the valve cover. By arranging the inner groove in front of the welding point between the metal tube and the upper part of the valve cover, space can be provided for the movement of the cutter row through the inner groove.

[0028] 2. The utility model provides a valve cover welding part, and a chamfer is arranged at the front edge of the inner groove along the inner processing direction of the metal tube.

[0029] In order to facilitate the entry of the cutter row into the inner groove, the valve cover weldment of this structure is provided with a chamfer at the front edge of the inner groove along the inner processing direction of the metal tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 A schematic structural view of a valve cover welding member provided in an embodiment of the utility model;

[0032] Figure 2 for Figure 1 A magnified view of the structure at the center circle A;

[0033] Figure 3 A schematic structural view of a valve cover provided in an embodiment of the utility model;

[0034] Figure 4 for Figure 3 A magnified view of the structure at B in the middle;

[0035] Figure 5 A schematic structural view of a clamping device provided in an embodiment of the utility model;

[0036] Figure 6 for Figure 5 Enlarged view of the structure at C in the middle.

[0037] Description of reference numerals:

[0038] 1-The upper part of the valve cover;

[0039] 2-Metal pipe;

[0040] 3-valve cover;

[0041] 4-Inner groove;

[0042] 5- Socket end;

[0043] 6-Substrate;

[0044] 7- Support block;

[0045] 8-Pressing plate;

[0046] 9-Fixed rod;

[0047] 10- Pad;

[0048] 11- Knife row. DETAILED DESCRIPTION

[0049] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0050] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, the technical features involved in the different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0051] Example 1

[0052] This embodiment provides a valve cover 3 welding part, such as Figures 1 to 4 As shown, it includes a valve cover upper part 1, a metal tube 2 and a valve cover 3. The upper end of the metal tube 2 is socket-welded to the valve cover upper part 1. A cavity is provided inside the valve cover 3. A groove connecting the cavity is provided on the upper side of the valve cover 3. The lower end of the metal tube 2 is socket-welded to the groove.

[0053] In this embodiment, when the vertical lathe and boring machine spindle are used to mount the tool bar to countersink the end surface to remove the socket structure produced by welding, the tool row arranged at the end of the tool bar is inserted into the steel pipe to bore the hole to remove the socket structure produced by welding. However, the space inside the steel pipe is small, and the movement of the tool row is greatly restricted, which is not conducive to the operation of the tool row 11.

[0054] To this end, in this embodiment, Figures 2 to 4 As shown, the inner wall of the groove is provided with an inner groove 4. And along the inner processing direction of the metal pipe 2, the inner groove 4 is located in front of the welding point between the metal pipe 2 and the upper part 1 of the valve cover.

[0055] The above structure, such as Figure 1 and Figure 2 As shown, the internal processing direction of the metal tube 2 is Figure 1 In the direction from bottom to top, that is, from the valve cover 3 to the valve cover upper part 1, by arranging the inner groove 4 at the front side of the welding between the metal pipe 2 and the valve cover upper part 1, the inner groove 4 can provide space for the movement of the knife row 11 (such as Figure 6 shown).

[0056] Specific as Figure 3 and Figure 4 As shown, a socket end 5 is provided at the groove, and an inner groove 4 is provided on the inner side of the socket end 5.

[0057] In this embodiment, the inner groove 4 is an annular groove, the diameter of the inner groove 4 is ≥120 mm, and the groove width is ≥20 mm. Preferably, the diameter of the inner groove 4 is 120 mm, and the groove width is 20 mm.

[0058] In this embodiment, in order to facilitate the knife row 11 to enter the inner groove 4, as shown in FIG. Figure 3 and Figure 4 As shown, along the inner processing direction of the metal tube 2, the front edge of the inner groove 4 is provided with a chamfer. Figure 4 A chamfer is provided at the lower side of the inner groove 4 , and the chamfer can facilitate the knife row 11 to enter the inner groove 4 .

[0059] The valve cover 3 welding part provided in this embodiment is as follows Figure 2 As shown, an inner groove 4 is provided on the inner wall of the groove, and the inner groove 4 is provided on the inner side of the socket end 5. Then, when the socket structure is removed by the knife row 11, that is, the socket end 5 of the valve cover 3, the knife row 11 is placed in the inner groove 4 (as shown in FIG. Figure 6 As shown), the knife row 11 is then extended into the metal pipe until the socket end 5 is completely cleared.

[0060] As an alternative, the inner groove 4 can also be opened on the inner wall of the metal pipe end. After the socket welding with the valve cover 3 is completed, the inner groove 4 at the metal pipe end is in front of the socket end 5, which can also provide activity space for the knife row 11.

[0061] Example 2

[0062] This embodiment provides a clamping device for fixing the valve cover 3 welding part in Embodiment 1. The clamping device includes a base plate 6, two groups of clamping components and a gasket 10.

[0063] In this embodiment, if Figure 5 As shown, two groups of clamping assemblies are arranged on both sides of the base plate 6; the two groups of clamping assemblies clamp the valve cover upper part 1 and the valve cover 3 in the valve cover 3 welding part respectively.

[0064] Specifically, the clamping assembly includes a support block 7, a pressure plate 8 and a fixing rod 9. The bottom of the support block 7 is fixed to the base plate 6, the pressure plate 8 is arranged on the top of the support block 7, and the valve cover 3 welding part or the valve cover 3 is clamped between the pressure plate 8 and the base plate 6; one end of the fixing rod 9 is fixed to the base plate 6, and the other end is connected to the pressure plate 8.

[0065] In the above structure, taking one end of the fixed valve cover 3 as an example, the support block 7 is vertically fixed on the upper side of the base plate 6, the fixing rod 9 is a screw, the lower end of which is fixed to the base plate 6, and the upper end passes through the pressure plate 8 and is screwed and fixed with a nut. The end of the pressure plate 8 abuts against the upper end of the support block 7. After the valve cover 3 is placed between the pressure plate 8 and the base plate 6, the nut is tightened so that the pressure plate 8 presses the valve cover 3 part.

[0066] In this embodiment, the spacer 10 is disposed between the valve cover upper portion 1 and the base plate 6 so that the metal pipe can be in a horizontal state, thereby ensuring that the cutter row 11 can accurately remove the socket end 5 .

[0067] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A valve cover welding part, comprising: Upper part of valve cover (1); A metal tube (2), one end of the metal tube (2) being socket-welded to the upper portion of the valve cover (1); A valve cover (3), wherein a cavity is provided inside the valve cover (3), and a groove communicating with the cavity is provided on the upper side of the valve cover (3); the other end of the metal pipe (2) is socket welded to the groove; Features: An inner groove (4) is provided on the inner wall of one end of the metal pipe (2) connected to the groove, or an inner groove (4) is provided on the inner wall of the groove.

2. The valve cover welding part according to claim 1, characterized in that: Along the internal processing direction of the metal tube (2), the inner groove (4) is located in front of the welding point between the metal tube (2) and the upper part of the valve cover (1).

3. The valve cover welding part according to claim 1 or 2, characterized in that: The inner groove (4) is an annular groove.

4. The valve cover welding part according to claim 3, characterized in that: The inner groove (4) has a diameter of ≥120 mm and a groove width of ≥20 mm.

5. The valve cover welding part according to claim 4, characterized in that: The inner groove (4) has a diameter of 120 mm and a groove width of 20 mm.

6. The valve cover welding part according to claim 3, characterized in that: Along the internal processing direction of the metal tube (2), a chamfer is provided at the front edge of the inner groove (4).

7. The valve cover welding member according to claim 1, characterized in that: A socket end (5) is provided at the groove, and the inner groove (4) is provided on the inner side of the socket end (5).

8. A clamping device for fixing the valve cover (3) welding piece according to any one of claims 1 to 7, characterized in that: The clamping device comprises: base(6); Two groups of clamping components are arranged on both sides of the base plate (6); the two groups of clamping components respectively clamp the valve cover upper part (1) of the valve cover (3) welding part and the valve cover (3).

9. The clamping device according to claim 8, characterized in that The clamping assembly comprises: A support block (7), the bottom of which is fixed to the base plate (6); A pressing plate (8) is arranged on the top of the supporting block (7), and the valve cover (3) welding piece or the valve cover (3) is clamped between the pressing plate (8) and the base plate (6); A fixing rod (9) has one end fixed to the base plate (6) and the other end connected to the pressing plate (8).

10. The clamping device according to claim 9, characterized in that It also comprises a gasket (10), wherein the gasket (10) is suitable for being arranged between the upper part of the valve cover (1) and the base plate (6).

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