Copper elbow welding clamp and copper elbow welding machine

Abstract

The utility model discloses a copper elbow welding clamp which comprises a supporting seat and a fixing assembly, an upward copper seat supporting face is arranged at the upper end of the supporting seat, the fixing assembly is arranged on one side of the supporting seat and comprises a base, a lower supporting assembly and an upper pressing and abutting assembly, and the lower supporting assembly and the upper pressing and abutting assembly are arranged on the base. The upper pressing and abutting assembly is located on the upper side of the lower supporting assembly, the lower supporting assembly is provided with an upward copper bent pipe circumferential face supporting face, the copper bent pipe circumferential face supporting face is located on the side, in the horizontal direction, of the copper base supporting face and is higher than the copper base supporting face, and the upper pressing and abutting assembly is provided with a downward copper bent pipe circumferential face pressing and abutting face. The upper pressing and abutting assembly is movably arranged on the base and can move to a pressing and abutting position and a receding position. The copper elbow welding clamp with the structure is simple in structure and stable in clamping, and the workpiece is convenient and fast to assemble and disassemble. The utility model further discloses a copper elbow welding machine.

Description

TECHNICAL FIELD

[0001] The utility model relates to copper elbow pipe's production equipment, especially a kind of copper elbow pipe welding fixture and copper elbow pipe welding machine. BACKGROUND

[0002] REFERENCE Figure 1 For the copper elbow pipe 1 of prior art, it includes the pipe main body 11 of "J" shape, and the copper seat 12 arranged at the end of pipe main body 11, and the copper seat 12 is fixed with pipe main body 11 by welding. When welding, copper seat 12 and welding ring are installed at one end of pipe main body 11, then copper elbow pipe 1 is fixed by welding fixture, and then heating is carried out by welding coil, so that welding ring melts and fixes copper seat 12 and pipe main body 11. The welding fixture for clamping copper elbow pipe 1 of prior art has complex structure, and clamping is not stable enough, and it is not convenient and fast enough when copper elbow pipe 1 is assembled and disassembled, which affects production efficiency. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in prior art. For this purpose, the utility model provides a kind of copper elbow pipe welding fixture, and the structure is simple, clamping is stable and the assembly and disassembly of workpiece are convenient and fast.

[0004] The utility model further provides a kind of copper elbow pipe welding machine with the above-mentioned copper elbow pipe welding fixture.

[0005] The copper elbow pipe welding fixture according to the first aspect embodiment of the utility model comprises: a support seat, an upward-facing copper seat support surface is provided at the upper end of the support seat; a fixing assembly is arranged on one side of the support seat, the fixing assembly comprises a base, a lower support assembly and an upper pressing assembly, the lower support assembly and the upper pressing assembly are arranged on the base, the upper pressing assembly is located on the upper side of the lower support assembly, the lower support assembly is provided with an upward-facing copper elbow pipe peripheral surface support surface, the copper elbow pipe peripheral surface support surface is located on one side of the copper seat support surface along the horizontal direction and is higher than the copper seat support surface in position, and the upper pressing assembly is provided with a downward-facing copper elbow pipe peripheral surface pressing surface; the upper pressing assembly is movably arranged on the base and can be moved to a pressing position and a giving-up position, in the pressing position, the copper elbow pipe peripheral surface pressing surface is located above the position between the copper seat support surface and the copper elbow pipe peripheral surface support surface; in the giving-up position, the copper elbow pipe peripheral surface pressing surface moves away from the space above the copper seat support surface and the copper elbow pipe peripheral surface support surface.

[0006] The copper bend pipe welding fixture according to the embodiment of the present invention has at least the following beneficial effects: when the welding fixture is installed and used, the welding coil is set above the copper seat support surface of the support seat. When clamping the copper bend pipe, the two ends of the copper bend pipe are facing downward, and the end of the copper bend pipe installed with the copper seat is abutted against the copper seat support surface of the support seat, and the pipe body of the copper bend pipe is mounted on the copper bend pipe peripheral support surface of the lower support assembly, and then the upper pressing assembly is moved to the pressing position, and the copper bend pipe peripheral pressing surface of the upper pressing assembly is pressed against the pipe body to complete the clamping and fixing of the copper bend pipe. When the welding coil is energized, the end of the copper bend pipe installed with the copper seat can be heated by the welding coil to achieve welding. After welding is completed, the upper pressing assembly is directly moved to the yield position, so that the welded copper bend pipe can be directly taken away. The above-mentioned copper elbow welding fixture adopts a structure of two supporting surfaces and a pressure surface to clamp and fix the copper elbow. It has a simple structure and is firmly fixed in a three-point fixing manner. When loading and unloading the copper elbow, it is done by removing the pressure surface on the periphery of the copper elbow, which is simple and quick to operate.

[0007] According to some embodiments of the present invention, the upper pressing assembly can rotate around the vertical axis relative to the base and switch the pressing position and the yielding position by rotation. The upper pressing assembly can move up and down along the vertical axis relative to the base and press the workpiece by gravity.

[0008] According to some embodiments of the present invention, the upper and lower positions of the supporting surface of the copper elbow circumference are adjustable.

[0009] According to some embodiments of the present invention, the support surface on the circumference of the copper elbow can be adjusted relative to the support seat along the horizontal plane.

[0010] According to some embodiments of the present invention, the base includes a vertical rod, the lower support assembly includes a lower connecting seat, a lower adjusting rod and a support block, the lower connecting seat is provided with a first lower sleeve hole, the lower connecting seat is movably sleeved on the vertical rod through the first lower sleeve hole, the hole wall of the first lower sleeve hole is provided with a first lower screw hole, and the first lower screw hole is threadedly connected to the first lower fastening screw; the lower connecting seat is provided with a second lower sleeve hole, the lower adjusting rod is horizontally arranged and movably passed through the second lower sleeve hole, the hole wall of the second lower sleeve hole is provided with a second lower screw hole, and the second lower fastening screw is threadedly connected to the second lower screw hole; the support block is arranged at one end of the lower adjusting rod, and the peripheral support surface of the copper bent pipe is arranged on the support block.

[0011] According to some embodiments of the utility model, the base includes vertical pole, the upper pressure assembly includes upper connecting seat, upper adjusting rod and pressure block, the upper connecting seat is provided with first upper sleeve hole, the upper connecting seat is movably sleeved on the vertical pole through the first upper sleeve hole, the upper connecting seat is provided with second upper sleeve hole, the upper adjusting rod is horizontally arranged and movably passes through the second upper sleeve hole, the hole wall of the second upper sleeve hole is throughly provided with first upper screw hole, the first upper screw hole is screw connected with first upper fastening screw, the pressure block is arranged at one end of the upper adjusting rod, and the copper elbow pipe circumferential surface pressure surface is arranged on the pressure block.

[0012] According to some embodiments of the utility model, the hole wall of the first upper sleeve hole is throughly provided with second upper screw hole, and the second upper screw hole is screw connected with second upper fastening screw.

[0013] According to some embodiments of the utility model, the copper elbow pipe circumferential surface pressure surface is U-shaped concave surface matched with the pipe body.

[0014] The copper elbow pipe welding machine according to the second aspect embodiment of the utility model comprises: a welding machine main body provided with a work platform and a welding device, wherein the welding device is provided with a welding coil, and the welding coil extends from the upper side of the work platform; the copper elbow pipe welding clamp according to the first aspect embodiment of the utility model, wherein the support base and the fixing assembly are arranged on the work platform, and the support base is arranged below the welding coil.

[0015] The copper elbow pipe welding machine according to the utility model embodiment has at least the following beneficial effects: since the copper elbow pipe welding clamp according to the first aspect embodiment of the utility model is adopted, when the copper elbow pipe welding machine clamps the copper elbow pipe, the clamping is stable and the clamping and dismounting are quick.

[0016] According to some embodiments of the utility model, the copper elbow pipe welding clamp and the welding coil are arranged on one side of the work platform along the horizontal direction, and the welding machine main body is provided with a display screen and operation keys on the other side of the work platform.

[0017] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0019] Figure 1 It is a three-dimensional schematic view of the copper elbow pipe;

[0020] Figure 2A three-dimensional schematic view of the copper elbow pipe welding fixture of the embodiment of the present application;

[0021] Figure 3 A three-dimensional schematic view of the upper pressing assembly of the copper elbow pipe welding fixture of the embodiment of the present application in the letting position;

[0022] Figure 4 A three-dimensional schematic view of the upper pressing assembly of the copper elbow pipe welding fixture of the embodiment of the present application in the pressing position;

[0023] Figure 5 An explosion schematic view of the fixing assembly of the embodiment of the present application;

[0024] Figure 6 An explosion schematic view of the fixing assembly of the embodiment of the present application;

[0025] Figure 7 A three-dimensional schematic view of the copper elbow pipe welding machine of the embodiment of the present application.

[0026] Reference signs:

[0027] Copper elbow pipe 1, pipe body 11, copper seat 12;

[0028] Supporting seat 100, copper seat supporting surface 110;

[0029] Fixing assembly 200, base 210, lower supporting assembly 220, upper pressing assembly 230, copper elbow pipe peripheral surface supporting surface 221, copper elbow pipe peripheral surface pressing surface 231, vertical rod 211, lower connecting seat 222, lower adjusting rod 223, supporting block 224, first lower sleeve joint hole 2221, first lower screw hole 2222, first lower fastening screw 225, second lower sleeve joint hole 2223, second lower screw hole 2224, second lower fastening screw 226, upper connecting seat 232, upper adjusting rod 233, pressing block 234, first upper sleeve joint hole 2321, second upper sleeve joint hole 2322, first upper screw hole 2323, first upper fastening screw 235, second upper screw hole 2324, second upper fastening screw 236;

[0030] Welding machine body 300, working platform 310, welding device 320, welding coil 321, display screen 330, operation key 340. DETAILED DESCRIPTION

[0031] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0032] In the description of the utility model, it needs to be understood that, if the direction description, such as the direction or position relation of up, down, front, back, left, right and the like indicated is based on the direction or position relation shown in the drawing, it is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as the limitation of the utility model.

[0033] In the description of the utility model, the meaning of several is one or more, and the meaning of multiple is more than two, and greater than, less than, more than and the like are not included in the number, and above, below and the like are included in the number.If the first and the second are described, it is only for distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0034] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installing and connecting should be understood in a broad sense, and the skilled person in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0035] Refer to Figure 1 The copper elbow pipe 1 corresponding to the copper elbow pipe welding fixture of the utility model, the copper elbow pipe 1 includes a pipe body 11 and a copper base 12 arranged at one end of the pipe body 11.

[0036] Refer to Figures 2 to 6 The copper elbow pipe welding fixture includes a support base 100 and a fixing assembly 200. The support base 100 is provided with an upward-facing copper base supporting surface 110 at the upper end, and the fixing assembly 200 is arranged on one side of the support base 100. The fixing assembly 200 includes a base 210, a lower supporting assembly 220 and an upper pressing assembly 230. The lower supporting assembly 220 and the upper pressing assembly 230 are arranged on the base 210. The upper pressing assembly 230 is located on the upper side of the lower supporting assembly 220. The lower supporting assembly 220 is provided with an upward-facing copper elbow pipe peripheral surface supporting surface 221. The copper elbow pipe peripheral surface supporting surface 221 is located on one side of the copper base supporting surface 110 along the horizontal direction and is higher than the copper base supporting surface 110. The upper pressing assembly 230 is provided with a downward-facing copper elbow pipe peripheral surface pressing surface 231. The upper pressing assembly 230 is movably arranged on the base 210 and can be moved to a pressing position and a giving-up position. In the pressing position, the copper elbow pipe peripheral surface pressing surface 231 is located above the position between the copper base supporting surface 110 and the copper elbow pipe peripheral surface supporting surface 221. In the giving-up position, the copper elbow pipe peripheral surface pressing surface 231 moves away from the space above the copper base supporting surface 110 and the copper elbow pipe peripheral surface supporting surface 221.

[0037] When the welding fixture is installed and used, the welding coil 321 is arranged above the copper base support surface 110 of the support base 100. When the copper elbow pipe 1 is clamped, the two end portions of the copper elbow pipe 1 are downward, the end portion of the copper elbow pipe provided with the copper base 12 is abutted against the copper base support surface 110 of the support base 100, the pipe body 11 of the copper elbow pipe 1 is hung on the copper elbow pipe peripheral surface support surface 221 of the lower support assembly 220, and then the upper pressing assembly 230 is moved to the pressing position, the copper elbow pipe peripheral surface pressing surface 231 of the upper pressing assembly 230 is pressed against the pipe body 11, the clamping and fixing of the copper elbow pipe are completed, when the welding coil 321 passes through the current, the end portion of the copper elbow pipe 1 provided with the copper base 12 can be heated by the welding coil 321, and welding is realized. After the welding is completed, the upper pressing assembly 230 is directly moved to the giving position, so that the copper elbow pipe 1 after the welding is directly taken away. The copper elbow pipe welding fixture described above clamps and fixes the copper elbow pipe 1 by adopting the structure of two support surfaces and one pressing surface, the structure is simple, the three-point fixing mode is fixed stably, when the copper elbow pipe 1 is installed and removed, the copper elbow pipe peripheral surface pressing surface 231 is removed, the operation is simple and fast.

[0038] In the embodiment, the upper pressing assembly 230 can rotate around the vertical axis relative to the base 210 and switch the pressing position and the giving position by rotation, the upper pressing assembly 230 can move up and down along the vertical axis relative to the base 210 and press the workpiece by gravity. By adopting the structure described above, the upper pressing assembly 230 can switch the position by rotation, the operation is convenient, and the upper pressing assembly 230 can move up and down, when the upper pressing assembly 230 is removed from the copper elbow pipe 1, the upper pressing assembly 230 can be moved upward first and then rotated to remove, so that the copper elbow pipe 1 is not abnormally scraped. In addition, since the upper pressing assembly 230 can move up and down, the copper elbow pipe 1 can be pressed by gravity, and no additional clamping force is needed.

[0039] In the embodiment, the up-down position of the copper elbow pipe peripheral surface support surface 221 is adjustable, so that the height of the support can be adjusted, and different sizes of the copper elbow pipe 1 can be adapted.

[0040] In the embodiment, the copper elbow pipe peripheral surface support surface 221 can adjust the position relative to the support base 100 along the horizontal direction, so that the distance relative to the copper base support surface 110 can be conveniently adjusted, and the appropriate support position of the copper elbow pipe 1 is ensured.

[0041] In the embodiment, the base 210 comprises a vertical rod 211, the lower support assembly 220 comprises a lower connecting seat 222, a lower adjusting rod 223 and a support block 224, the lower connecting seat 222 is provided with a first lower sleeve hole 2221, the lower connecting seat 222 is movably sleeved on the vertical rod 211 through the first lower sleeve hole 2221, a first lower screw hole 2222 is throughly formed on the hole wall of the first lower sleeve hole 2221, and a first lower fastening screw 225 is threadedly connected in the first lower screw hole 2222; the lower connecting seat 222 is provided with a second lower sleeve hole 2223, the lower adjusting rod 223 is horizontally arranged and movably sleeved in the second lower sleeve hole 2223, a second lower screw hole 2224 is throughly formed on the hole wall of the second lower sleeve hole 2223, and a second lower fastening screw 226 is threadedly connected in the second lower screw hole 2224; the support block 224 is arranged at one end of the lower adjusting rod 223, and the copper elbow peripheral surface support surface 221 is arranged on the support block 224.

[0042] When the position of the copper elbow peripheral surface support surface 221 needs to be adjusted, the lower connecting seat 222 can be rotated relative to the vertical rod 211, and the extension position of the lower adjusting rod 223 relative to the lower connecting seat 222 is adjusted at the same time, so that the position of the support block 224 in the horizontal plane is adjusted, that is, the position adjustment of the copper elbow peripheral surface support surface 221 is realized; when the up-down position of the copper elbow peripheral surface support surface 221 needs to be adjusted, the lower connecting seat 222 can be moved up and down relative to the vertical rod 211 for adjustment; after the adjustment is completed, the first lower fastening screw 225 and the second lower fastening screw 226 are tightened, the vertical rod 211 and the upper adjusting rod 233 are clamped by the first lower fastening screw 225 and the second lower fastening screw 226, so that the relative positions among the lower connecting seat 222, the vertical rod 211 and the lower adjusting rod 223 are stable.

[0043] It can be understood that there are many embodiments for realizing position adjustment in the art, and those skilled in the art can configure the embodiments for realizing position adjustment of the copper elbow peripheral surface support surface 221 according to actual conditions.

[0044] In the embodiment, the upper pressing assembly 230 comprises an upper connecting seat 232, an upper adjusting rod 233 and a pressing block 234. The upper connecting seat 232 is provided with a first upper sleeve hole 2321, and the upper connecting seat 232 is movably sleeved on the vertical rod 211 through the first upper sleeve hole 2321. The upper connecting seat 232 is provided with a second upper sleeve hole 2322, and the upper adjusting rod 233 is horizontally arranged and movably arranged in the second upper sleeve hole 2322. The hole wall of the second upper sleeve hole 2322 is throughly provided with a first upper screw hole 2323, and the first upper screw hole 2323 is threadedly connected with a first upper fastening screw 235. The pressing block 234 is arranged at one end of the upper adjusting rod 233, and the copper elbow peripheral surface pressing surface 231 is arranged on the pressing block 234. By adopting the above structure, the rotation and the up-down movement of the upper pressing assembly 230 can be realized, and the structure is simple to implement. In addition, the position of the pressing block 234 can be adjusted by adjusting the position of the upper adjusting rod 233 relative to the upper connecting seat 232 through telescopic adjustment, so as to ensure the accuracy of the pressing position of the copper elbow peripheral surface pressing surface 231. After adjusting the position of the upper adjusting rod 233, the first upper fastening screw 235 is tightened to press the upper adjusting rod 233, so as to fix the position.

[0045] It can be imagined that the rotation and the up-down movement of the upper pressing assembly 230 can also be realized by adopting the above structure, and there are many implementation manners for realizing the relative movement between components in a predetermined direction in the field. The person skilled in the art can configure according to the actual situation without being limited to the implementation manner shown in the drawings.

[0046] In the embodiment, the hole wall of the first upper sleeve hole 2321 is throughly provided with a second upper screw hole 2324, and the second upper screw hole 2324 is threadedly connected with a second upper fastening screw 236. By adopting the above structure, the angular position of the upper connecting seat 232 relative to the vertical rod 211 can be fixed by the second upper fastening screw 236, so as to avoid the arbitrary rotation of the upper pressing assembly 230, which is suitable for the case that the copper elbow 1 is small and easy to move. Of course, in some embodiments, if the pressing of the upper pressing assembly 230 on the copper elbow 1 is stable, the second upper fastening screw 236 can also not be locked during the operation process, so as to avoid increasing the operation steps.

[0047] In the embodiment, the copper elbow peripheral surface pressing surface 231 is a U-shaped concave surface matched with the pipe body, so that the matching degree with the copper elbow 1 is higher, and the copper elbow 1 can be stably pressed. In the embodiment, the copper seat supporting surface 110 and the copper elbow peripheral surface supporting surface 221 are planes, which are simple in structure and easy to implement.

[0048] Reference Figure 7The copper elbow pipe welding machine provided by the utility model comprises a welding machine main body 300 and the copper elbow pipe welding clamp of the first aspect embodiment of the utility model. The welding machine main body 300 is provided with a work platform 310 and a welding device 320, the welding device 320 is provided with a welding coil 321, and the welding coil 321 extends from the upper side of the work platform 310. The supporting seat 100 and the fixing assembly 200 of the copper elbow pipe welding clamp are arranged on the work platform 310, and the supporting seat 100 is arranged below the welding coil 321. Since the copper elbow pipe welding clamp of the first aspect embodiment of the utility model is adopted, when the copper elbow pipe welding machine clamps the copper elbow pipe 1, the clamping is stable and quick to assemble and disassemble.

[0049] In the embodiment, the copper elbow pipe welding clamp and the welding coil 321 are arranged on one side of the work platform 310 in the horizontal direction, and the welding machine main body 300 is provided with a display screen 330 and an operation key 340 on the other side of the work platform 310. In the embodiment, the operation key 340 can be a key or a knob. With the above structure, the operator can perform the welding operation on one side of the work platform 310, and the other side can be used to place auxiliary tools or workpieces. The display screen 330 and the operation key 340 are arranged on the other side of the work platform 310, so that they can be away from the welding coil 321, and the operation equipment is safe.

[0050] The technical features of the above embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the present application.

[0051] The utility model has been described in detail above in combination with the drawings, but the utility model is not limited to the above embodiment, and various changes can be made within the knowledge range of ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A copper elbow welding fixture, characterized in that: include: A support seat (100) having an upward-facing copper seat support surface (110) at its upper end; A fixing assembly (200) is arranged on one side of the support seat (100), and the fixing assembly (200) includes a base (210), a lower support assembly (220) and an upper pressing assembly (230), wherein the lower support assembly (220) and the upper pressing assembly (230) are arranged on the base (210), and the upper pressing assembly (230) is located on the upper side of the lower support assembly (220), and the lower support assembly (220) is provided with a copper bend peripheral surface supporting surface (221) facing upward, and the copper bend peripheral surface supporting surface (221) is located on one side of the copper seat support surface (110) along the horizontal direction and is positioned The upper pressing component (230) is provided with a copper bend pipe circumferential pressing surface (231) facing downward, which is higher than the copper seat support surface (110); the upper pressing component (230) is movably arranged on the base (210) and can be moved to a pressing position and a yielding position, wherein in the pressing position, the copper bend pipe circumferential pressing surface (231) is located above a position between the copper seat support surface (110) and the copper bend pipe circumferential supporting surface (221); and in the yielding position, the copper bend pipe circumferential pressing surface (231) is moved away from the space above both the copper seat support surface (110) and the copper bend pipe circumferential supporting surface (221).

2. The copper elbow welding fixture according to claim 1, characterized in that: The upper pressing component (230) can rotate relative to the base (210) about a vertical axis and switch the pressing position and the yielding position by rotating. The upper pressing component (230) can move up and down relative to the base (210) along the vertical axis and press the workpiece by gravity.

3. The copper elbow welding fixture according to claim 1, characterized in that: The upper and lower positions of the copper elbow peripheral support surface (221) are adjustable.

4. The copper pipe elbow welding fixture according to claim 1 or 3, characterized in that: The copper elbow peripheral support surface (221) can be adjusted relative to the support seat (100) along a horizontal plane direction.

5. The copper elbow welding fixture according to claim 1, characterized in that: The base (210) includes a vertical rod (211), and the lower support assembly (220) includes a lower connecting seat (222), a lower adjusting rod (223) and a supporting block (224). The lower connecting seat (222) is provided with a first lower sleeve hole (2221). The lower connecting seat (222) is movably sleeved on the vertical rod (211) through the first lower sleeve hole (2221). The hole wall of the first lower sleeve hole (2221) is provided with a first lower screw hole (2222). The first lower screw hole (2222) is threadedly connected with a first lower fastening screw. nail (225); the lower connecting seat (222) is provided with a second lower sleeve hole (2223); the lower adjusting rod (223) is horizontally arranged and movably penetrates the second lower sleeve hole (2223); the hole wall of the second lower sleeve hole (2223) is provided with a second lower screw hole (2224) through which the second lower screw hole (2224) is threadedly connected with a second lower fastening screw (226); the support block (224) is provided at one end of the lower adjusting rod (223); the copper elbow peripheral support surface (221) is provided on the support block (224).

6. The copper elbow welding fixture according to claim 1, characterized in that: The base (210) includes a vertical rod (211), and the upper pressure-resisting assembly (230) includes an upper connecting seat (232), an upper adjusting rod (233), and a pressure-resisting block (234). The upper connecting seat (232) is provided with a first upper sleeve hole (2321). The upper connecting seat (232) is movably sleeved on the vertical rod (211) through the first upper sleeve hole (2321). The upper connecting seat (232) is provided with a second upper sleeve hole (2322). The upper adjusting rod (233) is horizontally arranged and movably penetrates the second upper sleeve hole (2322); the hole wall of the second upper sleeve hole (2322) is provided with a first upper screw hole (2323); the first upper screw hole (2323) is threadedly connected with a first upper fastening screw (235); the pressing block (234) is arranged at one end of the upper adjusting rod (233); and the pressing surface (231) of the copper elbow circumference is arranged on the pressing block (234).

7. The copper pipe elbow welding fixture according to claim 6, characterized in that: A second upper screw hole (2324) is provided through the hole wall of the first upper sleeve hole (2321), and a second upper fastening screw (236) is threadedly connected in the second upper screw hole (2324).

8. The copper elbow welding fixture according to claim 1, characterized in that: The copper elbow peripheral pressing surface (231) is a U-shaped concave surface adapted to the tube body.

9. Copper pipe bending welding machine, characterized in that, include: The welding machine body (300) is provided with a working platform (310) and a welder (320), wherein the welder (320) is provided with a welding coil (321), and the welding coil (321) extends above the working platform (310); The copper bend welding fixture according to any one of claims 1 to 8, wherein the support base (100) and the fixing assembly (200) are arranged on the working platform (310), and the support base (100) is arranged below the welding coil (321).

10. The copper pipe bending welding machine according to claim 9, characterized in that: The copper elbow welding fixture and the welding coil (321) are arranged on one side of the working platform (310) in the horizontal direction, and the welding machine body (300) is provided with a display screen (330) and operation keys (340) on the other side corresponding to the working platform (310).

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