Tool for preventing welding deformation of connecting pipe on stainless steel flat cover

Abstract

The tool for preventing the welding deformation of the connecting pipe on the stainless steel flat cover comprises a water pool, a supporting cylinder and a supporting plate, one port of the supporting cylinder is fastened to the bottom in the water pool, the other port of the supporting cylinder is open, one side face of the supporting plate is placed on the supporting cylinder, and the other side face of the supporting plate is placed on the water pool. A through hole is formed in the center of the supporting plate and used for allowing a stainless steel flat cover upper connecting pipe to penetrate through, and a plurality of connecting holes are formed in the outer side of the through hole and used for fastening a flat cover flange. An auxiliary water tank is further arranged on one side of the water tank, and water is supplemented or pumped back into the water tank through a water pipe by means of the auxiliary water tank, so that the water level line is located within the height range of the flat cover flange during working. According to the utility model, the water cooling during stainless steel welding and the constraint of the tool flange are utilized, so that the welding deformation is well controlled, the structure is simple, the operation is convenient, the secondary machining by leaving a very thick machining allowance is avoided, and a lot of cost is reduced.

Description

Technical Field

[0001] The utility model relates to a deformation prevention tooling, in particular to a tooling for preventing welding deformation of a nozzle on a stainless steel flat cover. Background Technique

[0002] In current equipment manufacturing, welding of stainless steel materials is prone to deformation. How to adopt reasonable tooling and solutions to minimize costs while preventing and reducing deformation and effectively ensuring product quality is a problem that every enterprise needs to face.

[0003] For example, a nozzle of S30403 is welded on a flat cover with a material of S30403, a thickness of 29 mm, and a diameter of 1280 mm, and the distance between the nozzle and the sealing surface of the flat cover is very close.

[0004] Existing problems:

[0005] Both the flat cover and the nozzle are made of stainless steel, and it is a full-penetration fillet weld. Welding is extremely prone to deformation, and the distance between the nozzle and the flange sealing surface of the flat cover is very close. It will be very difficult to seal after the sealing surface is deformed.

[0006] Currently, normal welding is carried out. If deformation is detected, a restoration tooling is used for restoration. However, the steps are cumbersome, the construction period is long, the cost is high, the efficiency is low, and even scrapping may occur. Content of the Utility Model

[0007] To solve the defects of the above-mentioned existing technologies, the utility model provides a tooling for preventing welding deformation of a nozzle on a stainless steel flat cover. The utility model utilizes water cooling during stainless steel welding and the restraint of the tooling flange to well control welding deformation. The structure is simple, the operation is convenient, leaving a very thick machining allowance for secondary machining is avoided, and a lot of costs are reduced.

[0008] To achieve the above technical purpose, the utility model adopts the following technical solution: A tooling for preventing welding deformation of a nozzle on a stainless steel flat cover, including a water tank, a support cylinder, and a support plate. One end of the support cylinder is fastened to the inner bottom of the water tank, and the other end is open. One side of the support plate is placed on the support cylinder. A through hole is opened in the center of the support plate for passing through the nozzle on the stainless steel flat cover, and a plurality of connection holes are opened outside the through hole for fastening the flat cover flange;

[0009] An auxiliary water tank is further arranged on one side of the water tank. The auxiliary water tank uses a water pipe to supplement or pump back water into the water tank, so that the water level line is within the height range of the flat cover flange during operation.

[0010] Further, the outer open end of the support cylinder is rounded.

[0011] Furthermore, a quick positioning sleeve is provided on the lower side of the support plate. The quick positioning sleeve is a hollow cylindrical shape, and the inner diameter is larger than the diameter of the area occupied by the upper connecting pipe of the stainless steel flat cover. One end of the quick positioning sleeve is welded to the lower side of the support plate, and a circular groove is opened at the other end. The outer opening of the circular groove is expanded and is an arc-shaped expansion, and the inner opening of the circular groove has the same thickness as the support plate.

[0012] Furthermore, a pull ring is provided on the upper side of the support plate.

[0013] Furthermore, the water pipe includes a first water pipe and a second water pipe, the first water pipe extends to the top of the pool, and the second water pipe extends to the bottom of the pool.

[0014] In summary, the utility model has achieved the following technical effects:

[0015] The utility model utilizes water cooling and the constraint of tooling flange during stainless steel welding to well control welding deformation, has a simple structure, is easy to operate, avoids leaving a thick processing margin for secondary machining, and reduces a lot of costs;

[0016] The utility model is provided with a quick positioning structure, which can quickly reset the support plate;

[0017] The utility model is provided with an auxiliary water pool, which can timely control the water level line, thereby ensuring the cooling effect and preventing the water level line from exceeding the welding position. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a tool to prevent the welding deformation of the upper pipe of the stainless steel flat cover;

[0019] Figure 2 is a schematic diagram of the supporting cylinder;

[0020] Figure 3 is a schematic diagram of the support plate;

[0021] Figure 4 This is a schematic diagram of the back side of welding;

[0022] Figure 5 This is a schematic diagram of the welding front. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0024] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0026] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined.

[0027] In the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected with", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal height than the second feature.

[0029] Embodiment:

[0030] Figure 1 It is a tooling for preventing the welding deformation of the nozzle on the stainless steel flat cover, including a water tank 1, a support cylinder 2, and a support plate 3. Water or cold water is injected into the water tank 1 for cooling the nozzle.

[0031] One end of the support cylinder 2 is fastened to the bottom of the pool 1, and the other end is open. One side of the support plate 3 is placed on the support cylinder 2. A through hole 501 is opened in the center of the support plate 3 for passing the stainless steel flat cover upper pipe. A plurality of connecting holes 502 are opened on the outer side of the through hole 501 for fastening the flat cover flange.

[0032] An auxiliary water pool 6 is also provided on one side of the water pool 1. The auxiliary water pool 6 uses a water pipe to replenish or pump water back into the water pool 1 so that the water level is within the height range of the flat cover flange during operation.

[0033] Figure 2 2 is a schematic diagram of a support cylinder, wherein the outer opening end 201 of the support cylinder 2 is rounded to facilitate insertion into the quick positioning sleeve 4.

[0034] Figure 3 : is a schematic diagram of a support plate, wherein a quick positioning sleeve 4 is arranged on the lower side of the support plate 3, wherein the quick positioning sleeve 4 is a hollow cylinder, and wherein the inner diameter of the quick positioning sleeve 4 is larger than the diameter of the area occupied by the upper connecting pipe of the stainless steel flat cover, wherein one end of the quick positioning sleeve 4 is welded to the lower side of the support plate 3, and an annular groove is provided at the other end, wherein the outer opening of the annular groove is expanded and is an arc-shaped expansion, and the inner opening of the annular groove has the same thickness as the support plate 3.

[0035] The utility model is provided with a quick positioning sleeve 4 which can be quickly positioned with the supporting cylinder, and the flared form is convenient for quick guiding.

[0036] A pull ring 5 is provided on the upper side of the support plate 3 to facilitate the use of a crane to pull the support plate upwards.

[0037] like Figure 1 As shown, the water pipe includes a first water pipe 7 and a second water pipe 8, wherein the first water pipe 7 extends to the top of the water pool 1, and the second water pipe 8 extends to the bottom of the water pool 1, and is fixed in the auxiliary water pool by a buckle. The first water pipe 7 is used to inject the water of the auxiliary water pool into the water pool, and the second water pipe 8 is used to pump the water of the water pool back into the auxiliary water pool, so that the water level in the water pool is located at a point below the welding position, and the cooling effect is good. The first water pipe 7 and the second water pipe 8 are both equipped with a pump (not shown). When the upper pipe is placed in the water and the upper pipe leaves the water, the liquid level will change. Therefore, the pump and the water pipe are used to control the liquid level, and the water level is always kept a little below the welding position during welding, and the cooling effect is good. That is, the water level in the water pool is different on the front of the welding and the back of the welding machine, so it is necessary to pump back or inject so that the water level conforms to the current situation.

[0038] Figure 4 This is a schematic diagram of the back side of welding. Figure 5 This is a schematic diagram of the welding front.

[0039] Working principle:

[0040] First, spot weld multiple upper connecting pipes to the flat cover flange 8 to form a pre - fixation. Then, lift the upper connecting pipes and the flat cover flange 8 as a whole, place them into the through - hole 501, so that the upper connecting pipes are located inside the support cylinder, and the flat cover flange 8 is located on the upper side of the support plate. Use the connecting holes 502 and bolts 9 to fasten the flat cover flange 8 to the support plate 3, making the back face upward. At this time, control the water pump to make the water level line in the pool below the welding surface of the flat cover flange 8, that is, the water level line is slightly lower than the upper surface of the flat cover flange 8, and perform full welding to form the weld 10;

[0041] After the back - face welding is completed, remove the bolts 9. Use the pull - ring 5 and the crane to pull up the support plate, lift the upper connecting pipes and the flat cover flange 8 as a whole, place them on a platform on one side, quickly reset the support plate with the quick - positioning sleeve 4, and turn the upper connecting pipes and the flat cover flange 8 as a whole over. Then lift them up so that the flat cover flange 8 is placed on the upper surface of the support plate, with the whole facing upward. Fasten them with bolts 9. Control the water pump to adjust the liquid level, and the water level line is slightly lower than the upper surface of the flat cover flange 8, and perform full welding on the front face to form the weld 11;

[0042] During the welding process of the back face and the front face, the water level line is kept below the weld, which can quickly cool the heat generated by welding, reduce the temperature of the upper connecting pipes, and thus reduce the deformation amount.

[0043] The above description is only a preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Any simple modification, equivalent change and modification made to the above - mentioned embodiments based on the technical essence of the present invention all fall within the scope of the technical solution of the present invention.

Claims

1. A tool for preventing the welding deformation of the upper pipe of a stainless steel flat cover, characterized in that: It comprises a water pool (1), a supporting cylinder (2), and a supporting plate (3), wherein one end of the supporting cylinder (2) is fastened to the bottom of the water pool (1), and the other end is open, and one side of the supporting plate (3) is placed on the supporting cylinder (2), and a through hole (501) is provided at the center of the supporting plate (3) for passing a stainless steel flat cover upper pipe, and a plurality of connecting holes (502) are provided on the outer side of the through hole (501) for fastening the flat cover flange; An auxiliary water pool (6) is also provided on one side of the water pool (1), and the auxiliary water pool (6) uses a water pipe to replenish or pump water back into the water pool (1).

2. The tooling for preventing welding deformation of the upper pipe of a stainless steel flat cover according to claim 1 is characterized in that: The outer opening end (201) of the supporting cylinder (2) is rounded.

3. The tool for preventing welding deformation of the upper pipe of a stainless steel flat cover according to claim 1 is characterized in that: A quick positioning sleeve (4) is arranged on the lower side of the support plate (3); the quick positioning sleeve (4) is in the shape of a hollow cylinder, and its inner diameter is larger than the diameter of the area occupied by the upper connecting pipe of the stainless steel flat cover; one end of the quick positioning sleeve (4) is welded to the lower side of the support plate (3), and the other end is provided with a circular groove; the outer opening of the circular groove is expanded and is an arc-shaped expansion; the inner opening of the circular groove has the same thickness as the support plate (3).

4. The tool for preventing welding deformation of the upper pipe of a stainless steel flat cover according to claim 1 is characterized in that: A pull ring (5) is provided on the upper side of the support plate (3).

5. The tool for preventing welding deformation of the upper pipe of a stainless steel flat cover according to claim 1 is characterized in that: The water pipe comprises a first water pipe (7) and a second water pipe (8), wherein the first water pipe (7) extends to the top of the pool (1), and the second water pipe (8) extends to the bottom of the pool (1).

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