Welding device for elbow welding

Abstract

The utility model provides a welding device for elbow welding, and belongs to the field of welding fixing devices. The device comprises a support, a bent pipe placing plate is arranged on the support, a fixing structure used for fixing a bent pipe is arranged on the bent pipe placing plate, an X-direction moving frame is arranged on the support, an X-direction transverse moving device is connected to the X-direction moving frame in a sliding mode, a vertical rod is arranged on the X-direction transverse moving device, and a welding device is connected to the vertical rod in a sliding mode. In the operation process, workers do not need to manually fix the bent pipe all the time, automatic welding is carried out through the movable welding device, manual welding is not needed, and time and labor force are saved.

Description

Technical Field

[0001] The utility model belongs to the field of welding fixing devices, in particular to a welding device used for elbow welding. Background Art

[0002] With the growing development of the stainless steel pipe industry, pipe fittings, as a crucial component of stainless steel piping systems, are increasingly demanding higher-tech pipe fittings, with ever-larger diameters and thicker walls. Pipe fittings are widely used in large-scale projects, such as the petrochemical and papermaking industries. Elbows, a crucial component in the entire pipe fitting system, are particularly important. Their strength, rigidity, and curvature directly impact the overall performance of the stainless steel piping system. Some of these large-diameter elbows are used as connectors for high-pressure steel pipes in high-pressure pipelines, such as those used for oil, gas, and coal slurry transportation. Some of these elbows require only partial welding or repairs on pre-welded elbows. Currently, manual welding is the primary method for this process. However, automated elbow welding equipment often requires significant space, is difficult to load and unload, and exhibits low welding efficiency.

[0003] For example, a Chinese patent document discloses a pipe bend welding device [patent application number: CCN201210371453.6], which includes a base plate, a first positioning bracket, a second positioning bracket, a telescopic positioning mandrel, a support, and a positioning plate. Positioning bracket one is provided on one side of the base plate, and positioning bracket two is provided on the other side. Positioning bracket one is fixedly connected to the telescopic positioning mandrel. A support is provided in the center of the base plate, a positioning plate is provided at the end of the telescopic positioning mandrel, and a clamping member is provided on positioning bracket two. This pipe bend welding device has a simple structure. However, it still requires workers to manually secure the pipe bend. Utility Model Content

[0004] The purpose of the utility model is to provide a welding device for elbow welding in order to solve the above problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A welding device for elbow welding includes a bracket, a bend placement plate is provided on the bracket, a fixing structure for fixing the bend is provided on the bend placement plate, an X-axis moving frame is provided on the X-axis moving frame, an X-axis lateral moving device is slidably connected to the X-axis lateral moving device, a vertical rod is provided on the X-axis lateral moving device, and a welding device is slidably connected to the vertical rod.

[0007] In the above-mentioned welding device for elbow welding, the fixed structure includes placement blocks arranged on both sides of the elbow placement plate, a placement groove is provided in the middle of the placement block, and the height of one end of the placement block closer to the center of the elbow placement plate is lower than the height of the other end.

[0008] In the above-mentioned welding device for elbow welding, the placement block is horizontally slidably arranged on the elbow placement plate, the inner side of the elbow placement plate is provided with a rotating motor, the output shaft of the rotating motor is provided with a gear, the gear is meshed and connected with a tooth block, the tooth block is fixedly connected to the placement block, and the tooth block slides inside the elbow placement plate.

[0009] In the above-mentioned welding device for elbow welding, the placing block is composed of a fixed block and a movable block, the fixed block is fixedly connected to the tooth block, the movable block is slidingly connected to the tooth block through the cooperation of the clamping strip and the clamping groove, the movable block is slidably inserted into the fixed block, and a spring is provided between the fixed block and the movable block to drive the movable block close to the fixed block, and the thickness of the fixed block is less than the thickness of the movable block.

[0010] In the above-mentioned welding device for elbow welding, the fixed structure also includes a horizontal top device arranged on the moving block, the horizontal top device includes a horizontal top rod slidingly connected to the moving block, the upper end of the moving block is provided with a horizontal top linear driver, the output shaft of the horizontal top linear driver is connected to the horizontal top rod, and the horizontal top rod can move to a position where it does not extend out of the moving block.

[0011] In the above-mentioned welding device for elbow welding, an arc-shaped rod is provided at the end of the transverse push rod away from the transverse push rod linear driver.

[0012] In the above-mentioned welding device for elbow welding, the elbow placement plate is also connected to a Y-direction lateral movement device arranged on the bracket.

[0013] In the above-mentioned welding device for elbow welding, the X-direction lateral movement device includes an X-direction driver arranged on the bracket, the output shaft of the X-direction driver is connected to the X-direction support frame, the X-direction support frame is slidingly connected to the X-direction moving frame, the vertical rod is arranged on the X-direction support frame, and the X-direction support frame is provided with a vertical linear driver connected to the welding device, the Y-direction lateral movement device includes a Y-direction linear driver arranged on the bracket, and the output shaft of the Y-direction linear driver is connected to the elbow placement plate.

[0014] In the above-mentioned welding device for elbow welding, the upper and lower sides of both ends of the elbow placement plate are slidably connected with support rods, and the support rods are arranged on the bracket.

[0015] Compared with the existing technology, the advantages of this utility model are:

[0016] 1. During the operation, there is no need for workers to manually fix the bent pipes, and automatic welding is performed through a movable welding device, which does not require workers to weld, saving time and labor.

[0017] 2. The rotating motor is operated according to the length of the bent pipe, and the two placement blocks are moved to a suitable distance through the cooperation of the gear and the tooth block, so that the two ends of the bent pipe can be just placed in the two placement grooves for fixed placement.

[0018] 3. The elbow is further fixed by the elastic force of the spring.

[0019] 4. The arc-shaped rod further increases the contact area with the elbow, improves the firmness, and prevents the horizontal rod from wearing the elbow.

[0020] 5. The Y-axis lateral movement device is used to realize the movement of the elbow placement plate in the Y-axis direction. The X-axis lateral movement device and the welding device can be moved on the vertical rod to realize the movement of the welding device in the XYZ three-axis direction, which greatly increases the weldable coverage of the elbow. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure;

[0022] Figure 2 yes Figure 1 Schematic plan view of the elbow placement plate.

[0023] In the figure: bracket 10, bent pipe placement plate 11, X-axis moving frame 12, vertical rod 13, welding device 14, placement block 15, rotating motor 16, gear 17, gear block 18, fixed block 19, moving block 20, spring 21, horizontal top rod 22, horizontal top linear drive 23, arc rod 25, X-axis drive 26, X-axis support frame 27, vertical linear drive 28, Y-axis linear drive 29, support rod 30, placement slot 31. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0025] The utility model provides a welding device for elbow welding, combined with Figure 1-2 As shown, it includes a bracket 10, the bracket 10 is provided with a bent pipe placement plate 11, the bent pipe placement plate 11 is provided with a fixing structure for fixing the bent pipe, the bracket 10 is provided with an X-axis moving frame 12, the X-axis moving frame 12 is slidably connected to an X-axis transverse movement device, the X-axis transverse movement device is provided with a vertical rod 13, and the vertical rod 13 is slidably connected to a welding device 14.

[0026] In this embodiment, the bent steel pipe that needs to be repaired is fixed on the bent pipe placement plate 11 through a fixed structure, and the welding device 14 can be moved in the vertical direction and the X-axis direction through the X-axis lateral movement device and the vertical rod 13, so that the welding device 14 can be moved to the place where the bent pipe needs to be repaired for welding operation. During the operation, there is no need for workers to manually fix the bent pipe, and automatic welding is performed by the movable welding device 14, and no workers are required to weld, saving time and labor.

[0027] The fixing structure includes placement blocks 15 arranged on both sides of the elbow placement plate 11, and a placement groove 31 is provided in the middle of the placement block 15. The height of one end of the placement block 15 closer to the center of the elbow placement plate 11 is lower than the height of the other end.

[0028] In this embodiment, when fixing the bent pipe, the lower edges of both sides of the bent pipe are placed in the two placement grooves 31 respectively. The height setting of the two ends of the placement block 15 can prevent the lower edge of the bent pipe from being worn when placing the bent pipe.

[0029] The placement block 15 is horizontally slidably arranged on the bend pipe placement plate 11. The inner side of the bend pipe placement plate 11 is provided with a rotating motor 16. The output shaft of the rotating motor 16 is provided with a gear 17. The gear 17 is meshed and connected with a tooth block 18. The tooth block 18 is fixedly connected to the placement block 15. The tooth block 18 slides inside the bend pipe placement plate 11.

[0030] In this embodiment, the bent pipes have different lengths, and the rotating motor 16 is operated according to the length of the bent pipes, so that the two placement blocks 15 are moved to a suitable spacing through the cooperation of the gear 17 and the tooth block 18, so that the two ends of the bent pipe can be just placed in the two placement grooves 31 for fixed placement.

[0031] The placement block 15 is composed of a fixed block 19 and a movable block 20. The fixed block 19 is fixedly connected to the tooth block 18. The movable block 20 is slidingly connected to the tooth block 18 through the cooperation of the card strip and the card slot. The movable block 20 is slidably inserted into the fixed block 19, and a spring 21 is provided between the fixed block 19 and the movable block 20 to drive the movable block 20 close to the fixed block 19. The thickness of the fixed block 19 is less than the thickness of the movable block 20.

[0032] In this embodiment, when the bent pipe is placed on the placement block 15, the movable block 20 is pulled away from the fixed block 19 to lengthen the length of the placement slot 31. After the bent pipe is placed in the placement slot 31, the placement block 15 is moved so that the lower edge of the bent pipe first contacts the fixed block 19, and then the movable block 20 is released so that the movable block 20 is brought closer so that the movable block 20 contacts the bent pipe and the bent pipe is further fixed by the elastic force of the spring 21.

[0033] The fixed structure also includes a transverse top device arranged on the moving block 20, and the transverse top device includes a transverse top rod 22 slidingly connected to the moving block 20. The upper end of the moving block 20 is provided with a transverse top linear driver 23, and the output shaft of the transverse top linear driver 23 is connected to the transverse top rod 22. The transverse top rod 22 can move to a position where it does not extend out of the moving block 20.

[0034] In this embodiment, after the bent pipe is placed on the placement block 15, the horizontal top linear drive 23 works to make the transverse rod 22 close to the bent pipe, and finally makes the transverse rod 22 rest against the upper outer wall of the bent pipe, and further fixes the bent pipe through the transverse rods 22 on both sides.

[0035] An arc-shaped rod 25 is provided at the end of the transverse push rod 22 away from the transverse push linear driver 23 .

[0036] In this embodiment, since the bent pipe is curved, the arc rod 25 further increases the contact area with the bent pipe, thereby improving the firmness and preventing the cross rod 22 from wearing the bent pipe.

[0037] The bent pipe placement plate 11 is also connected to a Y-direction lateral movement device arranged on the bracket 10.

[0038] In this embodiment, the Y-axis direction of the bent pipe placement plate 11 is achieved through the Y-axis lateral movement device, and the X-axis lateral movement device and the welding device 14 can move on the vertical rod 13 to achieve the movement of the welding device 14 in the three-axis directions of XYZ, which greatly increases the weldable coverage area of the bent pipe.

[0039] The X-axis lateral movement device includes an X-axis driver 26 arranged on the bracket 10, the output shaft of the X-axis driver 26 is connected to the X-axis support frame 27, the X-axis support frame 27 is slidingly connected to the X-axis moving frame 12, the vertical rod 13 is arranged on the X-axis support frame 27, and the X-axis support frame 27 is provided with a vertical linear driver 28 connected to the welding device 14, the Y-axis lateral movement device includes a Y-axis linear driver 29 arranged on the bracket 10, and the output shaft of the Y-axis linear driver 29 is connected to the bent pipe placement plate 11.

[0040] The upper and lower sides of both ends of the bent pipe placement plate 11 are slidably connected with support rods 30, and the support rods 30 are set on the bracket 10.

[0041] In this embodiment, the four support rods 30 cooperate with the bent pipe placement plate 11 to improve the stability of the movement of the bent pipe placement plate 11, share the gravity brought by the bent pipe, and prevent the support rods 30 from bending due to long-term use.

[0042] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0043] Although this article uses the bracket 10, bent pipe placement plate 11, X-axis moving frame 12, vertical rod 13, welding device 14, placement block 15, rotating motor 16, gear 17, gear block 18, fixed block 19, moving block 20, spring 21, cross-top rod 22, cross-top linear drive 23, arc rod 25, X-axis drive 26, X-axis support frame 27, vertical linear drive 28, Y-axis linear drive 29, support rod 30, placement slot 31, etc. more frequently, these terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A welding device for elbow welding, characterized in that: The invention comprises a bracket (10), wherein the bracket (10) is provided with a bent pipe placement plate (11), wherein the bent pipe placement plate (11) is provided with a fixing structure for fixing the bent pipe, wherein the bracket (10) is provided with an X-axis shifting frame (12), wherein the X-axis shifting frame (12) is slidably connected to an X-axis lateral movement device, wherein the X-axis lateral movement device is provided with a vertical rod (13), and wherein the vertical rod (13) is slidably connected to a welding device (14).

2. A welding device for elbow welding according to claim 1, characterized in that: The fixing structure includes placement blocks (15) arranged on both sides of the bend pipe placement plate (11), a placement groove (31) is provided in the middle of the placement block (15), and the height of one end of the placement block (15) closer to the center of the bend pipe placement plate (11) is lower than the height of the other end.

3. A welding device for elbow welding according to claim 2, characterized in that: The placement block (15) is laterally slidably arranged on the bend pipe placement plate (11), and a rotating motor (16) is provided on the inner side of the bend pipe placement plate (11). The output shaft of the rotating motor (16) is provided with a gear (17), and the gear (17) is meshedly connected with a tooth block (18). The tooth block (18) is fixedly connected to the placement block (15), and the tooth block (18) slides inside the bend pipe placement plate (11).

4. A welding device for elbow welding according to claim 3, characterized in that: The placement block (15) is composed of a fixed block (19) and a moving block (20), wherein the fixed block (19) is fixedly connected to the tooth block (18), and the moving block (20) is slidably connected to the tooth block (18) through the cooperation of the card strip and the card slot, and the moving block (20) is slidably inserted into the fixed block (19), and a spring (21) capable of driving the moving block (20) to approach the fixed block (19) is further provided between the fixed block (19) and the moving block (20), and the thickness of the fixed block (19) is less than the thickness of the moving block (20).

5. The welding device for elbow welding according to claim 4, characterized in that: The fixed structure also includes a transverse push device arranged on the moving block (20), the transverse push device includes a transverse push rod (22) slidably connected to the moving block (20), the upper end of the moving block (20) is provided with a transverse push linear driver (23), the output shaft of the transverse push linear driver (23) is connected to the transverse push rod (22), and the transverse push rod (22) can move to a position where it does not extend out of the moving block (20).

6. The welding device for elbow welding according to claim 5, characterized in that: The end of the transverse top rod (22) away from the transverse top linear driver (23) is provided with an arc rod (25).

7. The welding device for elbow welding according to claim 1, characterized in that: The bent pipe placement plate (11) is also connected to a Y-direction lateral movement device arranged on the bracket (10).

8. The welding device for elbow welding according to claim 7, characterized in that: The X-direction lateral movement device includes an X-direction driver (26) arranged on the bracket (10), the output shaft of the X-direction driver (26) is connected to the X-direction support frame (27), the X-direction support frame (27) is slidably connected to the X-direction moving frame (12), the vertical rod (13) is arranged on the X-direction support frame (27), and the X-direction support frame (27) is provided with a vertical linear driver (28) connected to the welding device (14), the Y-direction lateral movement device includes a Y-direction linear driver (29) arranged on the bracket (10), and the output shaft of the Y-direction linear driver (29) is connected to the bent pipe placement plate (11).

9. The welding device for elbow welding according to claim 8, characterized in that: The upper and lower sides of both ends of the curved pipe placement plate (11) are slidably connected to support rods (30), and the support rods (30) are arranged on the bracket (10).

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