Water pipe assembling and welding tool

Abstract

The utility model discloses a water pipe assembling and welding tool which comprises a base, a first positioning hole, a second positioning hole, a first connecting rod, a second connecting rod and a second connecting rod. The base is provided with a first positioning hole corresponding to the welding position of an L-shaped connecting piece on a straight pipe section. The positioning block is arranged on the base, and a second positioning hole is formed in the positioning block; the first positioning pin is used for being arranged in the kidney-shaped hole of the support and the second positioning hole at the same time to achieve positioning of the straight pipe section; the second positioning pin is used for being arranged in the first positioning hole to achieve positioning of the L-shaped connecting piece. The bent pipe positioning plate is arranged on the base, and a third positioning hole used for fixing the flange is formed in the bent pipe positioning plate so that one end of the bent pipe section can be in butt joint with the straight pipe section. The precision of the welding size is improved, the working efficiency is improved, and the tool cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of locomotive diesel engine water pipe welding devices, in particular to a water pipe assembly welding tool. Background Art

[0002] like Figure 3 As shown, the locomotive diesel engine water pipe includes a square straight pipe section 51 and a curved pipe section 52 connected to the straight pipe section, and a flange 53 is provided at one end of the curved pipe section; a support 54 is welded to the straight pipe section 51, and waist-shaped holes 55 are processed on the support 54 and the straight pipe section 51 correspondingly, and an L-shaped connector 56 is also welded to the corresponding position of the straight pipe section 51. When welding the existing locomotive diesel engine water pipe, the support 54 and the straight pipe section 51 are welded together, and the support plane is marked after welding, and the waist-shaped hole 55 on the support is drilled with a drilling tool. When the curved pipe section is welded together, the detachable positioning tool is fastened with bolts, and the center line of the elbow flange and the waistline hole is measured with a steel ruler in the length direction and then spot welded.

[0003] The existing method has the following problems:

[0004] The assembly welding of the bent pipe section uses the detachable tooling on the original tooling platform for positioning, and a square ruler is required for alignment each time. Frequent disassembly can easily lead to looseness, resulting in inaccurate dimensions.

[0005] The length dimension needs to be measured using a steel ruler, which results in errors and low work efficiency. Utility Model Content

[0006] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a water pipe assembly welding tool, which improves the accuracy of welding dimensions, improves work efficiency, and saves tooling costs.

[0007] The purpose of the utility model is achieved through the following technical solutions:

[0008] The utility model provides a water pipe assembly welding tool, which is used for welding and positioning of water pipes. The water pipe comprises a square straight pipe section and a curved pipe section arranged at one end of the straight pipe section. A support provided with a waist-shaped hole is welded on the straight pipe section, and a flange is provided on the curved pipe section. The tool comprises:

[0009] A base, wherein the base is provided with a first positioning hole corresponding to the welding position of the L-shaped connector on the straight pipe section;

[0010] A positioning block, wherein the positioning block is arranged on the base and a second positioning hole is arranged on the positioning block;

[0011] A first positioning pin, the first positioning pin is used to be placed in the waist-shaped hole of the support and the second positioning hole at the same time to realize the positioning of the straight pipe section;

[0012] A second positioning pin, the second positioning pin is used to be placed in the first positioning hole to realize the positioning of the L-shaped connector;

[0013] A bend pipe positioning plate is arranged on the base, and a third positioning hole for fixing the flange is arranged on the bend pipe positioning plate so that one end of the bend pipe section can be butted against the straight pipe section.

[0014] The utility model has the following advantages:

[0015] The tooling of this solution can simultaneously realize the positioning of the straight pipe section and the curved pipe section, accurately position the support and the curved pipe section, improve the accuracy of the welding size, improve work efficiency, and save tooling costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a structural schematic diagram of the water pipe welding tooling of the utility model;

[0018] Figure 2 It is a schematic diagram of the installation of a water pipe welding tool and a type of water pipe;

[0019] Figure 3 This is a schematic diagram of the structure of the locomotive diesel engine water pipe. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] 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 represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0022] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The utility model discloses a water pipe assembly welding tool, which is used for welding and positioning of locomotive diesel engine water pipes. The locomotive diesel engine water pipe structure is as follows Figure 3 As shown, it includes a square straight pipe section and a curved pipe section arranged at one end of the straight pipe section, a support with a waist-shaped hole is welded on the straight pipe section, and a flange is arranged on the curved pipe section.

[0027] like Figure 1 As shown, the tooling includes a base 1, a positioning block 2, a first positioning pin 3, a second positioning pin 3 and a bent pipe positioning plate 4.

[0028] The positioning block 2 is arranged on the base 1 and is provided with a second positioning hole 21; the first positioning pin 3 is used to be placed in the waist-shaped hole of the support and the second positioning hole 21 at the same time to realize the positioning of the straight pipe section. After the straight pipe section to be welded is placed on the base 1, a support at a fixed position on it is aligned with the positioning block 2, and the first positioning pin 3 is inserted into the waist-shaped hole of the support and the second positioning hole 21 at the same time to realize the positioning of the straight pipe section. The position of the positioning block 2 is as shown in FIG. Figure 1 As shown, it can correspond to the first support position on the straight pipe section, or it can correspond to the second support position on the straight pipe section or other support positions.

[0029] The base 1 is provided with first positioning holes corresponding to the welding positions of the L-shaped connectors on the straight pipe section. The first positioning holes are generally arranged in two rows, respectively arranged on both sides of the straight pipe section, and the number thereof is set according to the model requirements of the water pipe to be welded.

[0030] The second positioning pin 3 is used to be placed in the first positioning hole to realize the positioning of the L-shaped connector. The second positioning pin 3 is placed in the first positioning hole and the hole position of the L-shaped connector at the same time to realize the positioning of the L-shaped connector. The L-shaped connectors on both sides can further realize the positioning of the straight pipe section, and the straight pipe section and the L-shaped connector can be welded.

[0031] The bend pipe positioning plate 4 is arranged on the base 1 , and a third positioning hole 41 for fixing the flange is arranged on the bend pipe positioning plate 4 so that one end of the bend pipe section can be butted with the straight pipe section.

[0032] By adopting the above tooling structure, the straight pipe section and the curved pipe section can be positioned at the same time, the support and the curved pipe section can be accurately positioned, and the accuracy of the welding size can be improved; the straight pipe section and the curved pipe section can be positioned at the same time, saving tooling costs.

[0033] In order to realize the welding positioning requirements of different types of locomotive diesel engine water pipes with one tool, there are two elbow positioning plates 4 with different heights. Correspondingly, there are two groups of first positioning holes, which correspond to the two elbow positioning plates 4 respectively. For example, Figure 2 As shown, it is a tooling that can adapt to the welding positioning requirements of two different types of locomotive diesel engine water pipes, among which, Figure 2 This is a schematic diagram of the welding, positioning and installation of a type of locomotive diesel engine water pipe.

[0034] By adopting the above structure, one tool can simultaneously realize the welding positioning requirements of two types of locomotive diesel engine water pipes, thereby improving the application scope of the tool and reducing production costs.

[0035] In order to facilitate processing and production, Figure 2As shown, the base 1 includes a base body 11 with a U-shaped cross section and a bottom plate 12 connected to the base body 11 for fixing the elbow positioning plate 4, and a second reinforcing rib 13 is provided on the base body 11. There is a certain height difference between the top surface of the base body 11 and the bottom plate 12, so that after the elbow section is placed on the base body 11, its flange will not affect its placement stability, which facilitates the installation of the elbow positioning plate 4.

[0036] In order to improve the structural stability of the tooling, a third reinforcing rib 14 is connected between the base body 11 and the bend positioning plate 4; a fourth reinforcing rib 15 is connected between the bend positioning plate 4 and the bottom plate 12, and the third reinforcing rib 14 and the fourth reinforcing rib 15 are respectively placed on both sides of the bend positioning plate 4.

[0037] For easy installation, the positioning block 2 is detachably connected to the base 1. For example, the positioning block 2 can be realized by using a positioning hole and a positioning pin structure.

[0038] With the above structure, the support and the straight pipe section are welded and the waist-shaped hole 55 is drilled, and then placed on the base. The first positioning pin is inserted into the second positioning hole 21 and the waist-shaped hole of the support. The L-shaped connector is positioned in the corresponding first positioning hole using the first positioning pin 3, and then the L-shaped connector and the straight pipe section are spot welded. When assembling the elbow section, bolts or positioning pins are used to fix the flange in the third positioning hole 41, and spot weld the seam. Remove the first positioning pin, the first positioning pin 3, and the bolt, and the elbow section is assembled. Figure 3 Welding of water pipes shown.

[0039] The above structure reduces the labor intensity of operators in assembling, ensures product quality and reduces production costs.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A water pipe assembly welding tool, which is used for welding and positioning of water pipes, wherein the water pipe comprises a square straight pipe section and a curved pipe section arranged at one end of the straight pipe section, a support provided with a waist-shaped hole is welded on the straight pipe section, and a flange is provided on the curved pipe section; characterized in that: The tooling includes: A base (1), wherein the base (1) is provided with a first positioning hole corresponding to a welding position of the L-shaped connecting piece on the straight pipe section; A positioning block (2), the positioning block (2) being arranged on the base (1) and having a second positioning hole (21); A first positioning pin (3), the first positioning pin (3) being used to be placed simultaneously in the waist-shaped hole of the support and the second positioning hole (21) to realize the positioning of the straight pipe section; A second positioning pin (3), the second positioning pin (3) being used to be placed in the first positioning hole to realize the positioning of the L-shaped connector; A bend pipe positioning plate (4), the bend pipe positioning plate (4) being arranged on the base (1), and the bend pipe positioning plate (4) being provided with a third positioning hole (41) for fixing the flange so that one end of the bend pipe section can be butted against the straight pipe section.

2. The water pipe welding tool according to claim 1, characterized in that: There are two bent pipe positioning plates (4) with different heights; There are two groups of the first positioning holes, which correspond to two bent pipe positioning plates (4) respectively.

3. The water pipe welding tool according to claim 1, characterized in that: The base (1) comprises a base body (11) with a U-shaped cross section and a bottom plate (12) connected to the base body (11) for fixing the bent pipe positioning plate (4), and a second reinforcing rib (13) is provided on the base body (11).

4. The water pipe assembly welding tool according to claim 3, characterized in that: A third reinforcing rib (14) is connected between the base body (11) and the bent pipe positioning plate (4); A fourth reinforcing rib (15) is connected between the bent pipe positioning plate (4) and the bottom plate (12), and the third reinforcing rib (14) and the fourth reinforcing rib (15) are respectively disposed on both sides of the bent pipe positioning plate (4).

5. The water pipe welding tool according to claim 1, characterized in that: The positioning block (2) is detachably connected to the base (1).

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