Weld joint calibration structure of submerged arc welding machine

Abstract

The utility model relates to the technical field of submerged arc welding machines, and provides a welding seam calibration structure of a submerged arc welding machine, the welding seam calibration structure comprises a machine table, and a calibration assembly, a positioning assembly and a placing rod which are mounted on the machine table, and a steel roller sleeves the outer wall of the placing rod; the positioning assembly comprises a lifting part and a positioning pressing rod, the lifting part is used for abutting the positioning pressing rod against the outer wall of the steel roller, and a welding groove is formed in the positioning pressing rod; the calibration structure comprises two calibration plates used for being inserted into the welding grooves, the two calibration plates are located at the two ends of the steel roller correspondingly, and calibration notches are formed in the calibration plates. According to the welding seam calibration structure of the submerged arc welding machine, the calibration efficiency of the welding path of the steel roller welding seam and the welding flux gun is improved.

Description

Technical Field

[0001] The present application relates to the technical field of submerged arc welding machines, and in particular to a weld seam calibration structure of a submerged arc welding machine. Background Art

[0002] After the steel roller is installed on the submerged arc welding machine, the weld of the steel roller and the welding position of the welding gun need to be calibrated. The current common practice is to move the welding carriage equipped with the welding gun back and forth along the axial direction of the steel roller, and the operator observes whether the axial direction of the steel roller weld is accurately located on the welding path of the welding gun. If the steel roller weld is offset, the operator adjusts the position of the steel roller circumferentially so that the steel roller weld can be aligned and overlapped with the welding path of the welding gun. However, the accuracy of the back-and-forth calibration is not high and the efficiency is low. Utility Model Content

[0003] In order to improve the calibration efficiency of the welding path of the steel roller weld and the welding gun, the present application provides a weld calibration structure of a submerged arc welding machine.

[0004] The weld seam calibration structure of a submerged arc welding machine provided in this application adopts the following technical solution:

[0005] A weld calibration structure for a submerged arc welding machine includes a machine platform, a calibration component installed on the machine platform, a positioning component and a placement rod, and a steel roller is sleeved on the outer wall of the placement rod; the positioning component includes a lifting member and a positioning pressure rod, the lifting member is used to press the positioning pressure rod against the outer wall of the steel roller, and the positioning pressure rod is provided with a welding groove; the calibration structure includes two calibration plates, both of which are used to be inserted into the welding groove, the two calibration plates are respectively located at both ends of the steel roller, and the calibration plates are provided with calibration notches.

[0006] By adopting the above-mentioned technical solution, the steel roller is sleeved on the placing roller and the positioning pressure rod is pressed against the outer wall of the steel roller, and then the calibration plate is dropped from the welding groove on the positioning pressure rod and pressed against the two ends of the steel roller; when calibrating the steel roller weld, the correspondence between the welding gun and the calibration notches on the calibration plates at both ends is verified, and then the position correspondence between the steel roller weld and the calibration notches on the calibration plates at both ends is verified; the axial correspondence of the weld from both ends can improve the calibration efficiency of the steel roller weld and the welding path of the welding gun; and the calibration plate and the steel roller are not an integrated structure, that is, the position of the calibration plate is fixed and will not be offset due to the adjustment of the steel roller, thereby improving the accuracy of the calibration.

[0007] Optionally, the calibration plate is installed with two first positioning columns for abutting against the opposite side walls of the welding groove, and the first positioning column is provided with a second positioning column for abutting against the outer wall of the positioning pressure rod.

[0008] By adopting the above-mentioned technical solution, the calibration plate can be fixed to the inner wall of the welding groove by respectively contacting the first positioning column and the second positioning column on the calibration plate with the positioning pressure rod and the inner wall of the welding groove, thereby reducing the possibility of the calibration plate detaching from the welding groove.

[0009] Optionally, a rubber sheet is provided on each side of the first positioning post and the second positioning post that are close to each other.

[0010] By adopting the above technical solution, the provision of the rubber sheet can ensure the stability of the calibration plate when installed in the welding groove, and reduce the situation where the calibration plate freely slides in the welding groove.

[0011] Optionally, the two calibration plates are respectively in contact with opposite ends of the steel roller.

[0012] After the welding gun is started, there is a delay in welding. During the delay, the welding effect is unstable, which can easily lead to poor welding effect at the initial position of the steel roller weld. Similarly, at the end of welding, there is also the problem of unstable welding effect, resulting in poor welding effect at the terminal position of the steel roller weld. By adopting the above technical solution, at the beginning of welding, welding is first performed on the calibration plate at one end. After the welding is stable, the welding gun is axially moved to weld the weld. After the welding gun has completely welded the weld, the welding gun is also moved to the calibration plate at the other end, and the welding is completed on the calibration plate and the machine is stopped. The calibration plate can be removed in the next process; this ensures the stability of the welding process.

[0013] Optionally, the first positioning column is provided with a mounting groove for inserting a calibration plate, and the calibration plate is fixed to the inner wall of the mounting groove by a fixing member.

[0014] By adopting the above technical solution, the setting of the fixing part can make the first positioning column and the calibration plate detachable and connected. After the calibration plate and the steel roller are welded into one, the first positioning column can be disassembled for reuse, thereby reducing costs.

[0015] Optionally, the fixing member is configured as a captive bolt, the first positioning column is provided with a threaded hole communicating with the mounting slot, and the captive bolt is installed in the threaded hole and abuts against the outer wall of the calibration plate.

[0016] By adopting the above-mentioned technical solution, the captive bolt is pressed against the upper wall of the calibration plate, which can reduce the possibility of the calibration plate detaching from the installation groove, thereby completing the connection between the calibration plate and the first positioning column; and the captive bolt has a simple structure and does not require tools to be removed, thereby improving convenience.

[0017] Optionally, the two first positioning columns are connected by a connecting rod.

[0018] By adopting the above technical solution, the arrangement of the connecting rod can simultaneously remove the two first positioning columns from the calibration plate, thereby improving the convenience of disassembly.

[0019] Optionally, the fixing member includes a positioning plate and a spring, the positioning plate is mounted on the inner wall of the mounting groove via the spring, and the elastic force of the spring is used to drive the positioning plate to press against the outer wall of the calibration plate.

[0020] By adopting the above-mentioned technical solution, after the calibration plate is inserted into the installation groove, the positioning plate is pressed against the outer wall of the calibration plate under the elastic force of the spring, thereby reducing the possibility of the calibration plate detaching from the installation groove, thereby completing the connection between the calibration plate and the first positioning column.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. By setting up a calibration assembly, after the calibration plate falls into the welding groove on the positioning pressure rod and abuts against the two ends of the steel roller, the alignment between the welding gun and the calibration notches on the calibration plates at both ends is first verified, and then the positional alignment between the steel roller weld and the calibration notches on the calibration plates at both ends is verified. Axial alignment of the welds from both ends can improve the calibration efficiency of the steel roller weld and the welding path of the welding gun. In addition, the calibration plate and the steel roller are not integrated structures, that is, the calibration plate is fixed in position and will not shift due to steel roller adjustment, thereby improving the accuracy of calibration.

[0023] 2. By setting the first positioning column and the second positioning column, the calibration plate can be fixed to the inner wall of the welding groove, reducing the possibility of the calibration plate detaching from the welding groove; and the first positioning column and the calibration plate can be detachably connected through the fixing piece. After the calibration plate and the steel roller are welded into one, the first positioning column can be disassembled for reuse, thereby reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of Example 1;

[0025] Figure 2 yes Figure 1 A local enlarged view of point A;

[0026] Figure 3 Is a schematic structural diagram of Example 2;

[0027] Figure 4 yes Figure 3 A local enlarged view of point B;

[0028] Figure 5 This is a partial cross-sectional view of the mounting post of Example 3.

[0029] Explanation of the accompanying reference numerals: 1. Machine; 2. Calibration assembly; 21. Calibration plate; 22. First positioning column; 23. Mounting column; 231. Mounting groove; 232. Threaded hole; 24. Connecting column; 25. Second positioning column; 26. Rubber sheet; 27. Connecting rod; 28. Tightening groove; 3. Positioning assembly; 31. Positioning pressure rod; 32. Lifting member; 33. Welding groove; 4. Placement rod; 41. Support column; 5. Fixing member; 51. Captive bolt; 52. Positioning plate; 53. Spring; 54. Inclined surface; 6. Steel roller. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-5 This application is described in further detail.

[0031] Example 1:

[0032] An embodiment of the present application discloses a weld calibration structure for a submerged arc welding machine.

[0033] Reference Figure 1 A weld seam calibration structure of a submerged arc welding machine includes a machine platform 1, a calibration component 2 installed on the machine platform 1, a positioning component 3 and a placement rod 4. The placement rod 4 is placed above the machine platform 1, and the end of the placement rod 4 is fixed to the upper surface of the machine platform 1 through a support column 41; when the steel roller 6 needs to be installed on the machine platform 1, the steel roller 6 is sleeved on the outer wall of the placement rod 4 from the end of the placement rod 4 away from the support column 41, so that the steel roller 6 is installed on the placement rod 4 by its own weight, and the weld of the steel roller 6 is set upward.

[0034] The positioning assembly 3 includes a positioning pressure rod 31 and a lifting member 32. In this embodiment, the lifting member 32 is configured as a hydraulic cylinder. The hydraulic rod is fixed to the upper surface of the machine platform 1. The positioning pressure rod 31 is connected to the movable plug of the hydraulic cylinder. By driving the movable plug of the hydraulic cylinder, the positioning pressure rod 31 can be pressed against the upper wall of the steel roller 6; the positioning pressure rod 31 is provided with a welding groove 33 connected to the weld of the steel roller 6.

[0035] Reference Figure 2 The positioning assembly 3 includes two calibration plates 21. The two calibration plates 21 are both used in the welding groove 33 and make the two calibration plates 21 abut against the opposite ends of the steel roller 6. The two calibration plates 21 are both provided with calibration notches.

[0036] The implementation principle of Example 1 of the present application is:

[0037] After the positioning pressure rod 31 is pressed against the upper wall of the steel roller 6, the calibration plate 21 is dropped into the welding groove 33 on the positioning pressure rod 31 and pressed against the two ends of the steel roller 6; when calibrating the weld of the steel roller 6, the correspondence between the welding gun and the calibration notches on the calibration plates 21 at both ends is verified, and then the position correspondence between the weld of the steel roller 6 and the calibration notches of the calibration plates 21 at both ends is verified; the axial correspondence of the weld from both ends can improve the calibration efficiency of the welding path of the weld of the steel roller 6 and the welding gun; and the calibration plate 21 and the steel roller 6 are not an integrated structure, that is, the position of the calibration plate 21 is fixed and will not be offset due to the adjustment of the steel roller 6, thereby improving the accuracy of the calibration.

[0038] Example 2:

[0039] An embodiment of the present application discloses a weld calibration structure for a submerged arc welding machine.

[0040] Reference Figure 3 and Figure 4 The difference between Example 2 of the present application and Example 1 is that: the calibration plate 21 is installed with a first positioning column 22 for abutting against the two opposite walls of the welding groove 33, and a mounting column 23 is integrally formed at one end of the first positioning column 22. The extension direction of the mounting column 23 is perpendicular to the extension direction of the first positioning column 22, and a mounting groove 231 is opened at one end of the mounting column 23, and the calibration plate 21 is inserted into the mounting groove 231.

[0041] Reference Figure 4 The mounting column 23 is provided with a fixing part 5. In this embodiment, the fixing part 5 is configured as a captive bolt 51. The mounting column 23 is provided with a threaded hole 232 connected to the mounting groove 231. The captive bolt 51 is threadedly installed in the threaded hole 232 and abuts against the upper wall of the calibration plate 21. The captive bolt 51 has a simple structure, so that the mounting column 23 and the calibration plate 21 can be fixed, thereby improving convenience.

[0042] A connecting post 24 is provided at one end of the first positioning post 22 away from the mounting post 23. The connecting post 24 is configured to abut against the upper wall of the positioning pressure rod 31. A second positioning post 25 is fixed to the connecting post 24. The second positioning post 25 is configured to abut against the side wall of the positioning pressure rod 31. The provision of the first positioning post 22 and the second positioning post 25 enables the calibration plate 21 to be mounted within the welding groove 33, thereby preventing the calibration plate 21 from being separated from the welding groove 33.

[0043] A rubber sheet 26 is provided on the side where the first positioning column 22 and the second positioning column 25 are close to each other. The rubber sheet 26 can increase the stability of the calibration plate 21 in the welding groove 33 and reduce the free slippage of the calibration plate 21 during the correction of the steel roller 6.

[0044] The two first positioning posts 22 are connected by a connecting rod 27 . The setting of the connecting rod 27 can simultaneously remove the two first positioning posts 22 from the calibration plate 21 , thereby improving the convenience of disassembly.

[0045] The implementation principle of Example 2 of this application is:

[0046] The calibration plate 21 is detachably connected to the inner wall of the mounting groove 231 through the fixing part 5. After the two calibration plates 21 are welded to both ends of the steel roller 6, the two first positioning columns 22 are removed from the calibration plate 21 to facilitate cutting the calibration plate 21 from the steel roller 6; and the new first positioning columns 22 can be recirculated and connected to the new calibration plate 21 for reuse to reduce costs.

[0047] Example 3:

[0048] An embodiment of the present application discloses a weld calibration structure for a submerged arc welding machine.

[0049] Reference Figure 5 The difference between Example 3 of the present application and Example 1 is that: the fixing member 5 includes a positioning plate 52 and a spring 53, and a tightening groove 28 is opened on the inner wall of one side of the installation groove 231, and the positioning plate 52 is movably installed in the tightening groove 28; the two ends of the spring 53 are respectively connected to the inner wall of the tightening groove 28 and the positioning plate 52, and the elastic force of the spring 53 is used to drive the positioning plate 52 to move toward the side away from the tightening groove 28; in this embodiment, a rough surface is provided on the side of the positioning plate 52 away from the tightening groove 28 to increase the friction between the positioning plate 52 and the calibration plate 21.

[0050] An inclined surface 54 is provided on the side of the positioning plate 52 away from the tightening groove 28. When the calibration plate 21 is inserted into the installation groove 231, the calibration plate 21 abuts against the inclined surface 54. At this time, the positioning plate 52 enters the tightening groove 28 under the guidance of the inclined surface 54, so as to facilitate the smooth insertion of the calibration plate 21 into the installation groove 231; when the calibration plate 21 is inserted into the installation groove 231, the positioning plate 52 is pressed against the outer wall of the calibration plate 21 under the elastic force of the spring 53, thereby reducing the situation where the calibration plate 21 is detached from the installation groove 231, that is, completing the connection between the calibration plate 21 and the first positioning column 22.

[0051] The above are preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A weld seam calibration structure for a submerged arc welding machine, characterized in that: The invention comprises a machine (1), a calibration component (2) installed on the machine (1), a positioning component (3) and a placement rod (4), wherein a steel roller (6) is sleeved on the outer wall of the placement rod (4); the positioning component (3) comprises a lifting member (32) and a positioning pressure rod (31), wherein the lifting member (32) is used to press the positioning pressure rod (31) against the outer wall of the steel roller (6), and the positioning pressure rod (31) is provided with a welding groove (33); the calibration structure comprises two calibration plates (21) each for being inserted into the welding groove (33), wherein the two calibration plates (21) are respectively located at two ends of the steel roller (6), and the calibration plates (21) are provided with a calibration notch.

2. The weld seam calibration structure of a submerged arc welding machine according to claim 1, characterized in that: The calibration plate (21) is provided with two first positioning columns (22) for abutting against opposite side walls of the welding groove (33), and the first positioning columns (22) are provided with second positioning columns (25) for abutting against the outer wall of the positioning pressure rod (31).

3. The weld seam calibration structure of a submerged arc welding machine according to claim 2, characterized in that: A rubber sheet (26) is provided on each side of the first positioning column (22) and the second positioning column (25) that are close to each other.

4. The weld seam calibration structure of a submerged arc welding machine according to claim 2, characterized in that: The two calibration plates (21) are respectively in contact with opposite ends of the steel roller (6).

5. The weld seam calibration structure of a submerged arc welding machine according to claim 4, characterized in that: The first positioning column (22) is provided with a mounting groove (231) for the calibration plate (21) to be inserted into, and the calibration plate (21) is fixed to the inner wall of the mounting groove (231) via a fixing member (5).

6. The weld seam calibration structure of a submerged arc welding machine according to claim 5, characterized in that: The fixing member (5) includes a captive bolt (51), the first positioning column (22) is provided with a threaded hole (232) connected to the mounting groove (231), and the captive bolt (51) is installed in the threaded hole (232) and abuts against the outer wall of the calibration plate (21).

7. The weld seam calibration structure of a submerged arc welding machine according to claim 5, characterized in that: The two first positioning columns (22) are connected via a connecting rod (27).

8. The weld seam calibration structure of a submerged arc welding machine according to claim 5, characterized in that: The fixing member (5) comprises a positioning plate (52) and a spring (53). The positioning plate (52) is mounted on the inner wall of the mounting groove (231) via the spring (53). The elastic force of the spring (53) is used to drive the positioning plate (52) to press against the outer wall of the calibration plate (21).

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