Positioning water cooling tool and welding system

Abstract

The utility model relates to a positioning water cooling tool and a welding system, the tool adopts a split structure and is divided into three parts, namely a water cooling base, a cover plate and a positioning device, the water cooling base is provided with an inlet and outlet quick connector, and a connecting hose is connected to a cooling circulation device. The cover plate is welded on the base, the positioning columns are divided into different sizes according to specifications of copper pipes, and the water-cooling cover plate and the positioning device are in threaded connection and can be conveniently and quickly disassembled and assembled. In order to improve the efficiency, various specifications of copper pipes can be arranged on the base, marks are made, and when pipelines with corresponding outer diameters need to be welded, positioning of the corresponding specifications is directly used. The tool can effectively solve the problems that in railway vehicle induction brazing, a copper pipe and a pipe clamp are in sleeve joint and assembled in an inclined mode, the sleeve joint length is too short, and the sleeve joint gap is not uniform; and the problems that in the welding process, the temperature of a positioning fixing base is high, brazing filler metal overflows after being melted, consequently, a welding workpiece adheres to a brazing platform, rapid and continuous production cannot be achieved, and the welding efficiency is low are solved.

Description

Technical Field

[0001] The utility model relates to the field of pipe body pipe clamp joint welding, in particular to a positioning water cooling tool and a welding system for induction brazing of pipe body pipe clamp joints. Background Art

[0002] At present, some pipe bodies with pipe clamps are used in many fields. For example, copper pipes with pipe clamps are often used in rail vehicles. The pipe clamps need to be welded to the copper pipes by welding, and induction brazing is generally used. When the copper pipe and the pipe clamp are induction brazed, the construction operation is generally performed on the brazing platform. However, there are the following problems in the existing operation, which affect the continuous brazing operation, as follows:

[0003] When the pipe body and the pipe clamp are sleeved together, it is easy to produce assembly tilt, too short sleeve length, and uneven sleeve gap, which will lead to poor joint forming during welding and appearance defects such as weld nodules. The welding process requires manual hand-holding of the pipeline, which wastes man-hours. During continuous welding, the workpiece and the welding platform stick together and cannot be operated quickly and continuously, resulting in low welding efficiency. Utility Model Content

[0004] In order to solve the above problems, the utility model discloses a positioning water-cooling tooling and welding system for induction brazing of pipe body and pipe clamp joints, which can effectively solve the problems of inclination of the sleeve assembly of the pipe body and the pipe clamp, too short sleeve length, and uneven sleeve gap in induction brazing; and solve the problems of high temperature of the positioning fixing seat during welding, overflow of the brazing material after melting, resulting in adhesion of the welding workpiece and the brazing platform, inability to produce quickly and continuously, and low welding efficiency.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] In the first aspect, the utility model discloses a positioning water-cooling tool for induction brazing of pipe body and pipe clamp joints, comprising a water-cooling base, a water-cooling cover plate, and a positioning device. The water-cooling base and the water-cooling cover plate constitute a water-cooling box, a cooling water inlet pipe interface and a cooling water return pipe interface are arranged on the water-cooling base, and a water-cooling channel is formed inside the water-cooling box; the positioning device comprises a connecting part, a positioning plate, an inner positioning column and an outer positioning column, the connecting part is connected to the bottom of the positioning plate, the inner positioning column and the outer positioning column are concentrically arranged on the top of the positioning plate, and the height of the inner positioning column is higher than that of the outer positioning column; the connecting part is inserted into the water-cooling box and isolated from the water-cooling channel, the positioning plate is clamped on the water-cooling cover plate, the inner positioning column is used to insert the pipe body to be welded, and the outer positioning column is used to position the pipe clamp.

[0007] The utility model can effectively solve the problems of inclination of the sleeve assembly of the pipe body and the pipe clamp, too short sleeve length and uneven sleeve gap in induction brazing through the positioning device; and solve the problems of high temperature of the positioning fixing seat during welding, overflow of the brazing material after melting, adhesion of the welding workpiece to the brazing platform, inability to produce quickly and continuously, and low welding efficiency through the water-cooled base.

[0008] As a further technical solution, the water-cooling base comprises a bottom plate, a circle of outer wall and a circle of inner wall are arranged on the bottom plate, a water cooling channel is formed between the inner wall and the outer wall, a cooling water inlet pipe interface and a cooling water return pipe interface are arranged on the outer wall in isolation, and the water-cooling cover plate is placed on the top of the water-cooling base;

[0009] As a further technical solution, the connecting portion is threadably matched with the inner ring of the inner wall.

[0010] As a further technical solution, a circle of positioning steps is provided on the inner circle of the outer wall and the outer circle of the inner wall for positioning the water-cooling cover plate.

[0011] As a further technical solution, the inner wall and the outer wall are arranged concentrically.

[0012] As a further technical solution, a water-blocking rib is arranged in the annular space formed by the outer wall and the inner wall to separate the cooling water inlet pipe interface from the cooling water return pipe interface.

[0013] As a further technical solution, the height of the outer positioning column is lower than the height of the pipe clamp.

[0014] In a second aspect, the utility model discloses a welding system, including the aforementioned positioning water-cooling tooling for induction brazing of pipe body and pipe clamp joints.

[0015] As a further technical solution, the welding system further includes induction brazing equipment.

[0016] As a further technical solution, the cooling water inlet pipe interface and the cooling water return pipe interface are respectively connected to the cooling system through pipelines.

[0017] The beneficial effects of the utility model are as follows:

[0018] 1. The utility model realizes cooling while welding the pipe body and the pipe clamp through the mutual cooperation of the water-cooling base, the cover plate and the positioning device. The water-cooling base is provided with a water-cooling channel and water inlet and return pipe joints. The water inlet and return pipes between the water-cooling base are connected to the circulating cooling water tank of the brazing equipment, which can be easily disassembled, can effectively dissipate heat, reduce the temperature of the welding tooling, and prevent the overflow of the brazing material after melting, causing the workpiece and the welding tooling to stick together.

[0019] 2. The welding positioning device proposed by the utility model can match copper tubes and tube clamps of different specifications, avoid the phenomenon of inclination of the sleeve assembly of the copper tube and the tube clamp, too short sleeve length, and uneven sleeve gap, and ensure the quality of brazing.

[0020] 3. The utility model uses the inner positioning column in the positioning device to assist in positioning the pipe body, which can avoid manual support during welding and save man-hours. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the assembly of the water cooling tooling disclosed in the utility model in the use state;

[0022] Figure 2 It is a cross-sectional view of the water cooling tooling disclosed in the utility model;

[0023] Figure 3 It is a three-dimensional schematic diagram of the water cooling base disclosed in the utility model;

[0024] Figure 4 It is a cross-sectional view of the water-cooling base disclosed in the utility model;

[0025] Figure 5 It is a schematic diagram of the water-cooling cover plate disclosed in the utility model;

[0026] Figure 6 It is a schematic diagram of the positioning device disclosed in the utility model;

[0027] Figure 7 It is a schematic diagram of a welding system disclosed in the utility model;

[0028] In the figure: 1 water-cooling base, 2 water-cooling cover plate, 3 positioning device, 4 pipe clamp, 5 pipe body, 6 water inlet pipe joint, 7 water return pipe joint, 8 cooling system, 9 water cooling pipeline, 10 water cooling tooling, 11 induction brazing equipment, 12 brazing workbench;

[0029] 3-1 inner positioning column, 3-2 positioning plate, 3-3 connecting part, 3-4 outer positioning column;

[0030] 1-1 outer wall, 1-2 inner wall, 1-3 water-blocking rib plate, 1-4 cooling water inlet pipe interface, 1-5 cooling water return pipe interface, 1-6 positioning step, 1-7 positioning step, 1-8 bottom plate; DETAILED DESCRIPTION

[0031] It should be noted that the following detailed descriptions are all illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0032] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise explicitly stated in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or their combinations;

[0033] For the convenience of description, if the words "up", "down", "left" and "right" appear in the present invention, they only indicate that they are consistent with the up, down, left and right directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0034] As described in the prior art, when the induction brazing of the pipe body and the pipe clamp 4 is currently performed, the construction operation is performed on the brazing platform, and there are many problems in the operation, such as: when the pipe body and the pipe clamp 4 are sleeved, it is easy to produce assembly tilt, the sleeve length is too short, and the sleeve gap is uneven, resulting in poor joint forming during welding, and appearance defects such as weld nodules; the welding process requires manual hand-holding of the pipeline, which wastes labor hours; during continuous welding, the workpiece and the welding platform are adhered, and the operation cannot be performed quickly and continuously, resulting in low welding efficiency, etc. In order to solve this problem, the present embodiment discloses a positioning water-cooling tool for induction brazing of pipe body and pipe clamp joints, including a water-cooling base, a water-cooling cover plate, and a positioning device. The water-cooling base and the water-cooling cover plate form a water-cooling box, and a cooling water inlet pipe interface and a cooling water return pipe interface are provided on the water-cooling base, and a water-cooling channel is formed inside the water-cooling box; the The positioning device includes a connecting part, a positioning plate, an inner positioning column and an outer positioning column, the connecting part is connected to the bottom of the positioning plate, the inner positioning column and the outer positioning column are concentrically arranged on the top of the positioning plate, and the height of the inner positioning column is higher than that of the outer positioning column; the connecting part is inserted in the water cooling box and isolated from the water cooling channel, the positioning plate is clamped on the water cooling cover plate, the inner positioning column is used for inserting the welding steel pipe, and the outer positioning column is used for positioning the pipe clamp; the utility model realizes cooling while welding the pipe body and the pipe clamp through the mutual cooperation of the water cooling base, the cover plate and the positioning device, a water cooling channel and inlet and return water pipe joints are provided on the water cooling base, the inlet and return water pipelines between the water cooling bases are connected to the circulating cooling water tank of the brazing equipment, which can be easily disassembled, can effectively dissipate heat, reduce the temperature of the welding tooling, and prevent the overflow of the brazing material after melting, causing the workpiece and the welding tooling to stick.

[0035] like Figure 1 , Figure 2As shown, the present embodiment discloses a positioning water-cooling tool 10 for induction brazing of a pipe body and a pipe clamp joint, comprising a water-cooling base 1, a water-cooling cover plate 2, and a positioning device 3. The water-cooling base 1 and the water-cooling cover plate 2 constitute a water-cooling box, a cooling water inlet pipe interface and a cooling water return pipe interface are arranged on the water-cooling base 1, and a water-cooling channel is formed inside the water-cooling box; the positioning device 3 comprises a connecting portion 3-3, a positioning plate 3-2, an inner positioning column 3-1 and an outer positioning column 3-4, the connecting portion 3-3 is connected to the bottom of the positioning plate 3-2, the inner positioning column 3-1 and the outer positioning column 4-4 are concentrically arranged at the top of the positioning plate 3-2, and the height of the inner positioning column 3-1 is higher than the height of the outer positioning column 3-4; the connecting portion 3-3 is inserted into the water-cooling box and isolated from the water-cooling channel, the positioning plate 3-2 is clamped on the water-cooling cover plate 2, the inner positioning column 3-1 is used to insert the welded steel pipe, and the outer positioning column 3-4 is used to position the pipe clamp 4.

[0036] The whole material of the cooling and positioning tooling is stainless steel, that is, the water-cooling base 1, the water-cooling cover plate 2, and the positioning device 3 are all made of stainless steel.

[0037] Furthermore, the water cooling base 1 in this embodiment is as follows Figure 3 , Figure 4 As shown, the water-cooling base 1 is a disc structure, which includes a circular bottom plate 1-8, a circle of outer wall 1-1 is arranged on the outer circle of the bottom plate 1-8, and a circle of inner wall 1-2 is arranged at the center position of the bottom plate, the inner wall 1-2 is arranged concentrically with the outer wall 1-1, and a water-cooling channel is formed between the inner wall 1-2 and the outer wall 1-1, and a cooling water inlet pipe interface 1-4 and a cooling water return pipe interface 1-5 are arranged on the outer wall 1-1, and in the radial direction, a water-blocking rib plate 1-3 is arranged in the annular space formed by the outer wall 1-1 and the inner wall 1-2, so as to separate the cooling water inlet pipe interface 1-4 and the cooling water return pipe interface 1-5 to avoid mixing of cold and hot water; and a circle of positioning steps 1-6 is arranged on the inner circle of the outer wall 1-1, and a circle of positioning steps 1-7 is arranged on the outer circle of the inner wall 1-2, and the water-cooling cover plate 2 is placed on the positioning steps 1-6 and the positioning steps 1-7.

[0038] Furthermore, the inner circle of the inner wall 1 - 2 is processed with a threaded through hole, which cooperates with the inner positioning column 3 - 1 below to achieve positioning and fixing of the positioning device on the water-cooling base 1 .

[0039] Furthermore, the step heights of the positioning steps 1 - 6 and the positioning steps 1 - 7 in this embodiment are consistent and are used for welding the water-cooling cover plate 2 .

[0040] Furthermore, the cooling water inlet pipe interface 1-4 and the cooling water return pipe interface 1-5 in this embodiment are connected to the quick water inlet pipe joint 6 and the water return pipe joint 7, and connected to the water cooling circulation hose.

[0041] Furthermore, the water-cooling cover plate 2 in this embodiment is a circular ring, and the thickness thereof is consistent with the height of the positioning steps 1-6 and 1-7 of the water-cooling base.

[0042] Furthermore, the water-cooling cover plate 2 in this embodiment is a circular ring structure, the outer diameter of the water-cooling cover plate 2 is consistent with the inner ring size of the positioning steps 1-6, and the inner diameter of the water-cooling cover plate 2 is consistent with the outer ring size of the positioning steps 1-7; the inner and outer rings of the water-cooling cover plate 2 are welded to the water-cooling base 1 to ensure its sealing.

[0043] Furthermore, the positioning device in this embodiment includes a threaded connection part 3-3, a positioning plate 3-2, an inner positioning column 3-1 and an outer positioning column 3-4, and the four parts are integrally formed. The threaded connection part 3-3 is connected to the bottom of the positioning plate 3-2, the inner positioning column 3-1 and the outer positioning column 3-4 are concentrically arranged on the positioning plate 3-2, and the height of the inner positioning column 3-1 is higher than the height of the outer positioning column 3-4; the threaded connection part 3-3 is threadedly matched with the inner ring of the inner wall, and the positioning plate 3-2 is clamped on the water-cooled cover plate 2. The inner positioning column 3-1 is used for inserting and welding the tube body 5, and the outer positioning column 3-4 is used for positioning the tube clamp 4; the inner positioning column 3-1 and the outer positioning column 3-4 in the positioning device can effectively solve the problems of the tube body 5 and the tube clamp 4 being tilted in the sleeve assembly, the sleeve length being too short, and the sleeve gap being uneven in the induction brazing; and the water-cooled base can solve the problems of the high temperature of the positioning fixing seat during the welding process, the overflow of the brazing material after melting, the adhesion of the welding workpiece to the brazing platform, the inability to produce quickly and continuously, and the low welding efficiency.

[0044] Among them, the inner positioning column 3-1 can match different specifications according to the welding pipe diameter requirements, and the height can ensure that the sleeved copper pipe is firmly fixed and has good verticality. Before welding, the threaded connection part of the positioning device is connected to the water-cooled base. When welding pipe clamps 4 with different pipe diameters and copper pipes, different positioning devices can be replaced, which is convenient and quick.

[0045] Furthermore, the inner positioning column 3-1 of the positioning device matches the inner diameter of the pipeline to be welded, and the outer positioning column 3-4 of the positioning device matches the pipe clamp 4 to be welded. The height of the outer positioning column 3-4 is lower than that of the pipe clamp 4. In actual production, the pipe clamp 4 to be welded is first placed on the outer positioning column 3-4, and then the pipeline to be welded is inserted into the inner positioning column 3-1, and then the prefabricated solder ring is inserted, and then the welding area is heated by an induction heating coil, the solder melts, and fills the gap between the pipeline and the pipe clamp 4. The cooling device at the bottom ensures that the molten solder "solidifies" in time when it flows to the bottom to avoid the solder sticking to the welding work surface.

[0046] Based on the above water-cooled positioning device, this embodiment also discloses a welding system, such as Figure 7As shown, it is composed of a cooling system 8 (water-cooling water tank, water-cooling pump and control system), a brazing workbench 12, an induction brazing device 11 and the above-mentioned positioning water-cooling fixture 10; the positioning water-cooling fixture 10 is fixed on the brazing workbench 12, and the cooling system 8 is connected to the water inlet pipe joint 6 and the return pipe joint 7 of the positioning water-cooling fixture 10 through a water-cooling pipeline 9; the induction brazing device 11 is used to heat and melt the brazing material; when high-frequency electromagnetic waves pass through the brazing material, the electrons inside the brazing material will vibrate due to the effect of the electromagnetic waves, and the friction force generated thereby will cause the electrons to heat up, and then the brazing material as a whole will heat up and melt, thereby realizing the welding of the pipe body 5 and the pipe clamp 4.

[0047] The cooling system 8 in this embodiment is composed of a pump group, a flow control valve, a flow distribution valve, a hose, etc. The flow and distribution valve are set according to the size of the pipeline to be welded to ensure the cooling effect.

[0048] The positioning water-cooling tool 10 for induction brazing of copper pipe clamp joints disclosed in this embodiment adopts a split structure, which is divided into three parts: a water-cooling base, a cover plate, and a positioning device. The water-cooling base is provided with an inlet and outlet quick connector, and a hose is connected to the cooling circulation device. The cover plate is welded to the base, and the positioning column is divided into different sizes according to the specifications of the copper pipe. The water-cooling cover plate and the positioning device are connected by threads, which can be conveniently and quickly disassembled and assembled. On the other hand, in order to improve efficiency, the specifications of various tube bodies 5 can be arranged on the base and marked. When it is necessary to weld a pipeline with a corresponding outer diameter, the positioning of the corresponding specification can be directly used.

[0049] The above-mentioned tooling can effectively solve the problems of tilted assembly, short sleeve length, and uneven sleeve gap of copper tube and tube clamp in induction brazing of rail vehicles; and solve the problems of high temperature of the positioning fixing seat during welding, overflow of the brazing material after melting, adhesion of the welding workpiece and the brazing platform, inability to produce quickly and continuously, and low welding efficiency. The utility model realizes the positioning welding of copper tubes of different specifications, saves manual hand-held pipelines, reduces labor intensity, and improves the efficiency and quality of induction brazing of copper tubes.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A positioning water cooling tool, characterized in that: It includes a water-cooling base, a water-cooling cover plate and a positioning device, wherein the water-cooling base and the water-cooling cover plate form a water-cooling box, a cooling water inlet pipe interface and a cooling water return pipe interface are arranged on the water-cooling base, and a water-cooling channel is formed inside the water-cooling box; the positioning device includes a connecting part, a positioning plate, an inner positioning column and an outer positioning column, the connecting part is connected to the bottom of the positioning plate, the inner positioning column and the outer positioning column are concentrically arranged on the top of the positioning plate, and the height of the inner positioning column is higher than that of the outer positioning column; the connecting part is inserted into the water-cooling box and isolated from the water-cooling channel, the positioning plate is clamped on the water-cooling cover plate, the inner positioning column is used to insert the pipe body to be welded, and the outer positioning column is used to position the pipe clamp.

2. The positioning water cooling tooling according to claim 1, characterized in that: The water-cooling base comprises a bottom plate, on which a circle of outer wall and a circle of inner wall are arranged, a water-cooling channel is formed between the inner wall and the outer wall, and isolated cooling water inlet pipe interfaces and cooling water return pipe interfaces are arranged on the outer wall.

3. The positioning water cooling tooling according to claim 2, characterized in that: The connecting portion is threadably matched with the inner ring of the inner wall.

4. The positioning water cooling tooling according to claim 2, characterized in that: A circle of positioning steps is provided on the inner circle of the outer wall and the outer circle of the inner wall for positioning the water cooling cover plate.

5. The positioning water cooling tooling according to claim 2, characterized in that: The inner wall and the outer wall are arranged concentrically.

6. The positioning water cooling tooling according to claim 2, characterized in that: A water-blocking rib is arranged in the annular space formed by the outer wall and the inner wall to separate the cooling water inlet pipe interface from the cooling water return pipe interface.

7. The positioning water cooling tooling according to claim 1, characterized in that: The height of the outer positioning column is lower than the height of the pipe clamp.

8. A welding system, characterized in that: It comprises the positioning water cooling tooling as described in any one of claims 1-7.

9. The welding system according to claim 8, characterized in that Also includes induction brazing equipment.

10. The welding system according to claim 8, characterized in that The cooling water inlet pipe interface and the cooling water return pipe interface are respectively connected to the cooling system through pipelines.

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