Special-shaped copper pipe assembly welding tool and welding turntable

Abstract

The utility model discloses a special-shaped copper pipe assembly welding tool and a welding rotary table. The tool comprises a main pipe supporting plate used for supporting a main pipe, a 180-degree bent pipe backup plate used for positioning the connecting angle of a 180-degree bent pipe and the main pipe, a 90-degree bent pipe supporting plate used for supporting a 90-degree bent pipe and a separation plate used for positioning the distance between the two 90-degree bent pipes. The pipe end positioning mold is formed by splicing a mold plate I and a mold plate II which are arranged front and back. After the welding tool for the special-shaped copper pipe assembly is used for positioning, the welding quality and efficiency of the special-shaped copper pipe assembly are greatly improved, and the problems that the positions of pipe fittings are staggered and the like are effectively solved.

Description

Technical Field

[0001] The utility model relates to a welding tool, in particular to a welding tool for a special-shaped copper tube assembly and a welding turntable. Background Art

[0002] Copper tube components are mainly used in refrigeration equipment such as air conditioners and refrigerators. Since the host manufacturers have different designs for the host, many copper tube components need to be customized.

[0003] Figure 1 The figure shows a copper tube assembly customized by a main engine manufacturer, including a main tube 100, one end of which is connected to two 90° elbows 103 arranged side by side, and the other end is connected to a 180° elbow 102, and two side tubes 101 arranged side by side are also connected to the side wall of the main tube 100. The two side tubes 101 and the two 90° elbows 103 are located on the same plane, and the plane where the 180° elbow 102 is located has a certain angle with the plane.

[0004] The main pipe 100, 90° elbow 103, 180° elbow 102 and side pipe 101 in the copper pipe assembly need to be customized and welded together. However, the welding is done manually, which makes it difficult to ensure the position and angle of each pipe, resulting in low welding quality and efficiency. Utility Model Content

[0005] In view of this, the utility model provides a welding tool for a special-shaped copper tube assembly and a welding turntable, which can position each pipe fitting in the special-shaped copper tube assembly to facilitate welding.

[0006] In order to solve the above technical problems, the technical solution of the utility model is to adopt a welding tool for a special-shaped copper tube assembly, including a main tube support plate for supporting the main tube, a 180° elbow support plate for locating the connection angle between the 180° elbow and the main tube, a 90° elbow support plate for supporting the 90° elbow, and a separation plate for locating the spacing between two 90° elbows; and also includes a tube end positioning mold, the tube end positioning mold is composed of a template I and a template II arranged in front and behind; the template I and the template II are provided with a plurality of holes for respectively A positioning groove for accommodating two side tubes and two 90° elbow ends; when template I and template II are assembled, the positioning grooves can be assembled into a positioning cavity; when the main tube, side tube, 90° elbow and 180° elbow are assembled, when the two side tubes and the two 90° elbow ends are located in the positioning cavity, the two side tubes, the two 90° elbows and the main tube are located on the same plane, that is, the main plane; when the 180° elbow is flat against the 180° elbow support plate, the angle between the 180° elbow and the main plane is a preset angle.

[0007] As an improvement, template I and template II are connected by hinges so that the front and rear templates can be opened and closed.

[0008] As another further improvement, the hinge is arranged on the upper side of the template I and the template II, so that the template I and the template II can be opened by flipping up.

[0009] As an improvement, the template I is provided with a gas nozzle connected to a nitrogen generator; it also includes an air hole opened on the template, one end of the air hole is connected to the gas nozzle, and the other end is connected to the positioning groove.

[0010] As an improvement, it also includes a main connecting plate, the template I is fixed on the main connecting plate; the main pipe support plate is fixed on the main connecting plate and is parallel to the template I; the 90° elbow support plate is connected to the template I by means of a secondary plate, and the isolation plate is fixed on the secondary plate and is located above the 90° elbow support plate. The 180° elbow support plate is fixed on the main pipe support plate, and the angle between the 180° elbow support plate and the main pipe support plate is consistent with the angle between the plane where the 180° elbow is located and the main plane.

[0011] As an improvement, it further comprises a bracket, and the connecting plate and the bracket are rotatably connected by a rotating shaft.

[0012] As an improvement, the bracket includes a base plate and a column, and the main connecting plate is rotatably connected to the column by a rotating shaft.

[0013] The utility model also provides a welding turntable, comprising a turntable body arranged horizontally, the turntable body being rotatable; a plurality of welding tools for the above-mentioned special-shaped copper tube assemblies are arranged on the turntable body.

[0014] As an improvement, a plurality of air pipes are provided on the turntable body, one end of the air pipe is connected to the nitrogen generating device, and the other end is connected to the air nozzle on the welding tool of the special-shaped copper tube assembly.

[0015] The utility model is beneficial in that:

[0016] The welding fixture for the special-shaped copper tube assembly with the above structure places the main tube through the main tube support plate, and uses the positioning cavity composed of template I and template II to determine the position and spacing of the two side tubes and the two 90° elbows. The 180° elbow support plate is used to locate the angle between the 180° elbow and the main plane, so that all pipe fittings in the entire special-shaped copper tube assembly meet the requirements. After positioning using the welding fixture for the special-shaped copper tube assembly, the welding quality and efficiency of the special-shaped copper tube assembly are greatly improved, effectively avoiding problems such as misalignment between the pipe fittings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a special-shaped copper tube assembly.

[0018] Figure 2It is a front view of the welding tool for the special-shaped copper tube assembly in the utility model.

[0019] Figure 3 This is a diagram showing the use status of the welding tooling for the special-shaped copper tube assembly in the utility model.

[0020] Figure 4 It is a side view of the welding tool for the special-shaped copper tube assembly in the utility model.

[0021] Figure 5 It is a top view of the welding turntable in the utility model.

[0022] Markings in the figure: 1-base plate, 2-column, 3-template I, 4-template II, 5-positioning groove, 6-air hole, 7-main connecting plate, 8-main pipe support plate, 9-180° elbow support plate, 10 sub-plate, 11-90° elbow support plate, 12-isolation plate, 13-rotating shaft, 14-air nozzle, 100-main pipe, 101-side pipe, 102-180° elbow, 103-90° elbow, 200-special-shaped copper pipe assembly welding tooling, 201-turntable body, 202-air pipe. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with specific implementation methods.

[0024] like Figure 2 to Figure 4 As shown, the utility model provides a welding tool for a special-shaped copper tube assembly, including a main tube support plate 8 for supporting a main tube 100, a 180° elbow support plate 9 for locating the connection angle between a 180° elbow 102 and the main tube, a 90° elbow support plate 11 for supporting a 90° elbow 103, and a separation plate 12 for locating the distance between two 90° elbows 103; and also includes a tube end positioning mold, the tube end positioning mold is composed of a template I3 and a template II4 arranged in front and behind; the template I3 and the template II4 are provided with a plurality of holes for accommodating two side tubes 101 and two 90° elbows, respectively. The positioning groove 5 at the end of the tube 103; when the template I3 and the template II4 are assembled, the positioning groove 5 can be assembled into a positioning cavity; when the main tube 100, the side tube 101, the 90° elbow 103 and the 180° elbow 102 are assembled, when the ends of the two side tubes 101 and the two 90° elbows 103 are located in the positioning cavity, the two side tubes 101, the two 90° elbows 103 and the main tube 100 are located on the same plane, that is, the main plane; when the 180° elbow 102 is flat against the 180° elbow support plate 9, the angle between the 180° elbow 102 and the main plane is a preset angle.

[0025] like Figure 1As shown, the requirements of the special-shaped copper tube assembly are that the two side tubes 101, the two 90° elbows 103 and the main tube 100 should be located on the same plane, that is, the main plane, and the spacing between the ends of the two side tubes 101 and the spacing between the ends of the two 90° elbows 103 are specified, and there is a certain angle between the 180° elbow 102 and the main plane. In order to meet the above requirements, the utility model places the main tube 100 through the main tube support plate 8, and uses the positioning cavity composed of the template I3 and the template II4 to determine the position and spacing of the two side tubes 101 and the two 90° elbows 103. The 180° elbow support plate 9 is used to locate the angle between the 180° elbow 103 and the main plane, so that the position and angle of each pipe in the entire special-shaped copper tube assembly meet the requirements.

[0026] Specifically, it also includes a main connecting plate 7, and the template I3 is fixed on the main connecting plate 7; the main pipe support plate 8 is fixed on the main connecting plate 7 and is parallel to the template I3; the 90° elbow support plate 11 is connected to the template I3 by means of a sub-plate 10, and the isolation plate 12 is fixed on the sub-plate 10 and is located above the 90° elbow support plate 11. The 180° elbow support plate 9 is fixed on the main pipe support plate 8, and the angle between the 180° elbow support plate 9 and the main pipe support plate 8 is consistent with the angle between the plane where the 180° elbow 103 is located and the main plane.

[0027] Template I3 and template II4 are connected by hinges, so that the front and rear templates can be opened and closed, and it is more convenient to use. In some embodiments, the hinges are set on the upper side of template I3 and template II4, so that template I3 and template II4 can be opened by flipping up. After such a setting, template II4 can be spliced ​​with template I3 by its own gravity.

[0028] In addition, the utility model also includes a bracket, which includes a bottom plate 1 and a column 2, and the main connecting plate 7 is rotatably connected to the column 2 by a rotating shaft 13. When welding the side tube 101, the entire tooling is placed in a horizontal state, that is, the template is horizontal, so that when the side tube 101 is welded, the solder can flow downward through the welding point to make the welding more firm. When welding the 180° elbow 102, the entire tooling can be rotated clockwise by a certain angle as shown in the figure, so that the solder can flow to a deeper depth during welding. Similarly, when welding the 90° elbow 103, the entire tooling can be rotated counterclockwise by a certain angle as shown in the figure.

[0029] During welding, the inner wall of the copper tube will oxidize due to high temperature, thereby reducing the quality of the copper tube assembly. Therefore, in this embodiment, the template 13 is provided with a gas nozzle 14 connected to a nitrogen generator; it also includes a pore 6 opened on the template 13, one end of the pore 6 is connected to the gas nozzle 14, and the other end is connected to the positioning groove 5. During welding, nitrogen enters the pore 6 through the gas nozzle 14, and then enters the positioning cavity formed by the positioning groove 5 through the pore 6. Then it enters from the opening of the side tube 101 and / or the 90° elbow 103, thereby filling the entire copper tube assembly, removing oxygen to avoid oxidation during welding.

[0030] When in use, first assemble the main pipe 100 with the side pipe 101, the 90° elbow 103 and the 180° elbow 102, and place the ends of the side pipe 101 and the 90° elbow 103 in the positioning groove 5 of the template I3, and then assemble the template II4. The two 90° elbows 103 are spaced apart by the isolation plate 12 and supported by the 90° elbow support plate 11. Finally, adjust the angle of the 180° elbow 103 so that it rests flat on the 180° elbow support plate 9, and then start welding.

[0031] like Figure 5 As shown, the utility model also provides a welding turntable, including a horizontally arranged turntable body 201, the turntable body 201 is rotatable; a plurality of the above-mentioned special-shaped copper tube assembly welding tools 200 are arranged on the turntable body 201. A plurality of air pipes 202 are arranged on the turntable body 201, one end of the air pipe 202 is connected to a nitrogen generating device, and the other end is connected to a gas nozzle on the special-shaped copper tube assembly welding tool 200.

[0032] During work, one worker installs the assembled special-shaped copper tube assembly on the special-shaped copper tube assembly welding tool 200, and one worker performs welding, thereby greatly improving production efficiency and production quality.

[0033] The above are only preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be regarded as limiting the present invention. The protection scope of the present invention should be based on the scope defined by the claims. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the spirit and scope of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A welding tool for a special-shaped copper tube assembly, characterized in that: It includes a main pipe support plate for supporting the main pipe, a 180° elbow support plate for locating the connection angle between the 180° elbow and the main pipe, a 90° elbow support plate for supporting the 90° elbow, and an isolation plate for locating the distance between two 90° elbows; it also includes a pipe end positioning mold, which is composed of a template I and a template II arranged front and back; the template I and the template II are provided with positioning grooves for accommodating two side pipes and two 90° elbow ends respectively; so that when the template I and the template II are assembled, the positioning grooves can be assembled into a positioning cavity; when the main pipe, the side pipe, the 90° elbow and the 180° elbow are assembled, when the two side pipes and the two 90° elbow ends are located in the positioning cavity, the two side pipes, the two 90° elbows and the main pipe are located on the same plane, that is, the main plane; when the 180° elbow is flat against the 180° elbow support plate, the angle between the 180° elbow and the main plane is a preset angle.

2. The welding tool for a special-shaped copper tube assembly according to claim 1, characterized in that: Template I and template II are connected by hinges so that the front and rear templates can be opened and closed.

3. The welding tool for a special-shaped copper tube assembly according to claim 2, characterized in that: The hinges are arranged on the upper sides of the template I and the template II, so that the template I and the template II can be opened by flipping upwards.

4. The welding tool for a special-shaped copper tube assembly according to claim 1, characterized in that: The template I is provided with a gas nozzle connected to a nitrogen generating device; it also includes an air hole opened on the template I, one end of the air hole is connected to the gas nozzle, and the other end is connected to the positioning groove.

5. The welding tool for a special-shaped copper tube assembly according to claim 1, characterized in that: It also includes a main connecting plate, and the template I is fixed on the main connecting plate; the main pipe support plate is fixed on the main connecting plate and is parallel to the template I; the 90° elbow support plate is connected to the template I by means of a sub-plate, and the isolation plate is fixed on the sub-plate and is located above the 90° elbow support plate; the 180° elbow support plate is fixed on the main pipe support plate, and the angle between the 180° elbow support plate and the main pipe support plate is consistent with the angle between the plane where the 180° elbow is located and the main plane.

6. The welding tool for a special-shaped copper tube assembly according to claim 5, characterized in that: It also includes a bracket, and the connecting plate and the bracket are rotatably connected by a rotating shaft.

7. The welding tool for a special-shaped copper tube assembly according to claim 6, characterized in that: The bracket comprises a bottom plate and a column, and the main connecting plate is rotatably connected to the column via a rotating shaft.

8. A welding turntable, characterized in that: It comprises a horizontally arranged turntable body, which is rotatable; the turntable body is provided with a plurality of welding fixtures for special-shaped copper tube assemblies as claimed in any one of claims 1 to 7.

9. A welding turntable according to claim 8, characterized in that: The turntable body is provided with a plurality of air pipes, one end of the air pipe is connected to the nitrogen generating device, and the other end is connected to the air nozzle on the welding tooling of the special-shaped copper tube assembly.

Images