Boiler tube stud welding gun

Abstract

A boiler tube stud welding gun includes a welding gun mounting plate, a welding gun unit mounted on the welding gun mounting plate, and two adaptive side support legs located on either side of the welding gun unit and indirectly connected to the welding gun mounting plate. The adaptive side support legs include a mounting bar, a support block located below the mounting bar, a connecting column connected to the top of the support block and passing through the mounting bar, a sliding bearing located within the mounting bar and slidably connected to the connecting column, a spherical bearing located outside the sliding bearing, a snap-on stud connected to the top of the connecting column, and a spring sleeved outside the connecting column with its ends abutting the mounting bar and the support block, respectively. This ensures that the welding gun is in a normal position relative to the arc surface, ensures that the resistance on both sides of the welding gun is consistent, avoids structural arc deflection, and improves welding quality.

Description

Technical Field

[0001] The invention relates to the technical field of stud welding, in particular to a boiler tube stud welding gun. Background Art

[0002] When welding studs on the curved surface of the boiler 200, if the welding gun 300 is not in a normal position to the boiler surface, the resistance on both sides of the welding gun will be inconsistent due to the angle and structure, which may easily cause a structural arc deviation phenomenon where one side is hot-melted and the other side is not hot-melted, forming a biased welding block 400. The welding quality of the biased welding block 400 is poor and cannot meet the predetermined requirements. Figure 6 shown. Summary of the Invention

[0003] In view of this, the present invention provides a boiler tube stud welding gun that can ensure that the welding gun is in a normal position on the arc surface, make the resistance on both sides of the welding gun consistent, avoid structural arc deflection, and improve welding quality to solve the above problems.

[0004] A boiler tube stud welding gun comprises a welding gun mounting plate, a welding gun unit mounted on the welding gun mounting plate, and two adaptive side support feet respectively located on both sides of the welding gun unit and indirectly connected to the welding gun mounting plate; the adaptive side support feet comprise a mounting bar, a support block located below the mounting bar, a connecting column connected to the top of the support block and passing through the mounting bar, a sliding bearing located in the mounting bar and slidably connected to the connecting column, a joint bearing located outside the sliding bearing, a snap-on stud connected to the top of the connecting column, and a spring sleeved on the outside of the connecting column and with both ends abutting the mounting bar and the support block respectively.

[0005] Furthermore, the welding gun mounting plate is provided with a side plate on both sides of the welding gun unit, and a T-shaped plate is connected to the side plate, and the large end of the T-shaped plate is arranged away from the side plate.

[0006] Furthermore, the two ends of the top of one adaptive side support leg are respectively connected to one side of the big end of the two T-shaped plates, and the two ends of the top of the other adaptive side support leg are respectively connected to the other side of the big end of the two T-shaped plates.

[0007] Furthermore, the mounting bar is arranged perpendicular to the side panel.

[0008] Furthermore, the bottom surface of the support block has a concave arc shape.

[0009] Furthermore, a through hole is provided on the mounting bar, a step groove is provided in the through hole near the top of the mounting bar, the sliding bearing and the spherical bearing are located in the step groove, and the connecting column passes through the through hole and the sliding bearing.

[0010] Furthermore, a first screw hole communicating with the step groove is opened on one side of the mounting bar, and a fixing screw is threadedly connected to the first screw hole and pressed against the outer surface of the spherical bearing.

[0011] Furthermore, a second screw hole is provided on the top of the connecting column, and the clamping stud passes through a pad and is threadedly connected to the second screw hole, and the pad abuts against the top surface of the mounting bar.

[0012] Compared with the prior art, the boiler tube stud welding gun of the present invention includes a welding gun mounting plate, a welding gun unit mounted on the welding gun mounting plate, and two adaptive side support legs located on either side of the welding gun unit and indirectly connected to the welding gun mounting plate; the adaptive side support legs include a mounting bar, a support block located below the mounting bar, a connecting column connected to the top of the support block and passing through the mounting bar, a sliding bearing located in the mounting bar and slidably connected to the connecting column, a spherical bearing located outside the sliding bearing, a snap-on stud connected to the top of the connecting column, and a spring sleeved on the outside of the connecting column with its ends abutting the mounting bar and the support block, respectively. This ensures that the welding gun is in a normal position to the arc surface, makes the resistance on both sides of the welding gun consistent, avoids structural arc deflection, and improves welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0014] Figure 1 This is a three-dimensional schematic diagram of the boiler tube stud welding gun provided by the present invention.

[0015] Figure 2 A side view of a boiler tube stud welding gun provided by the present invention.

[0016] Figure 3 for Figure 1 Schematic diagram of the adaptive side support foot.

[0017] Figure 4 for Figure 1 Exploded diagram of the adaptive side support foot in .

[0018] Figure 5 for Figure 1 Side cutaway view of the adaptive side support foot.

[0019] Figure 6 Schematic diagram of structural deflection arc. DETAILED DESCRIPTION

[0020] The following is a further detailed description of specific embodiments of the present invention based on the accompanying drawings. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the scope of protection of the present invention.

[0021] Please refer to Figure 1 and Figure 2 The boiler tube stud welding gun provided by the present invention includes a welding gun mounting plate 10, a welding gun unit 20 mounted on the welding gun mounting plate 10, and two adaptive side support legs 100 respectively located on both sides of the welding gun unit 20 and indirectly connected to the welding gun mounting plate 10.

[0022] The welding gun mounting plate 10 is provided with a side plate 11 on both sides of the welding gun unit 20 . A T-shaped plate 12 is connected to the side plate 11 . The large end of the T-shaped plate 12 is provided away from the side plate 11 .

[0023] The two ends of the top of one adaptive side support leg 100 are respectively connected to one side of the large end of the two T-shaped plates 12. The two ends of the top of the other adaptive side support leg 100 are respectively connected to the other side of the large end of the two T-shaped plates 12.

[0024] Please refer to Figures 3 to 5 The adaptive side support foot 100 includes a mounting bar 110 connected to the large end of the T-shaped plate 12, a support block 120 located below the mounting bar 110, a connecting column 130 connected to the top of the support block 120 and passing through the mounting bar 110, a sliding bearing 140 located in the mounting bar 110 and slidingly connected to the connecting column 130, a joint bearing 150 located outside the sliding bearing 140, a snap-in stud 160 connected to the top of the connecting column 130, and a spring 170 sleeved on the outside of the connecting column 130 and with both ends abutting the mounting bar 110 and the support block 120 respectively.

[0025] The number of each of the connecting column 130, the sliding bearing 140, the spherical bearing 150, the clamping stud 160 and the spring 170 is two. The two connecting columns 130 are arranged in parallel.

[0026] The bottom surface of the support block 120 has an inwardly concave arc shape 121 so as to fully abut against the curved surface of the boiler 200 , thereby increasing the contact area and improving the stability of the abutment.

[0027] The mounting bar 110 is provided with a through hole 111, and the mounting bar 110 is provided with a step groove 112 near the top of the through hole 111. The mounting bar 110 is arranged perpendicular to the side plate 11.

[0028] Sliding bearing 140 and spherical plain bearing 150 are positioned within stepped groove 112. A first threaded hole 113, which communicates with stepped groove 112, is defined on one side of mounting bar 110. A set screw is threadedly engaged with first threaded hole 113 and abuts against the outer surface of spherical plain bearing 150, thereby securing spherical plain bearing 150. Spherical plain bearings are spherical plain bearings with an inner and outer spherical contact surface, allowing them to rotate and oscillate at any angle during movement. Their structure is well known to those skilled in the art and will not be further described here. This allows support block 120 to oscillate at any angle.

[0029] The connecting post 130 passes through the through hole 111 and the sliding bearing 140 . The connecting post 130 can move up and down along the axial direction relative to the sliding bearing 140 .

[0030] A second screw hole is provided at the top of the connecting column 130. The snap-fit ​​stud 160 passes through a pad 161 and is threadedly connected to the second screw hole. The snap-fit ​​stud 160 and the pad 161 abut against the top surface of the mounting bar 110, thereby preventing the connecting column 130 from falling off downward.

[0031] Compared with the prior art, the present invention comprises a welding gun mounting plate 10 for a boiler tube stud welding gun, a welding gun unit 20 mounted on the welding gun mounting plate 10, and two adaptive side support legs 100 located on either side of the welding gun unit 20 and indirectly connected to the welding gun mounting plate 10. The adaptive side support legs 100 include a mounting bar 110, a support block 120 located below the mounting bar 110, a connecting column 130 connected to the top of the support block 120 and passing through the mounting bar 110, a sliding bearing 140 located in the mounting bar 110 and slidably connected to the connecting column 130, a spherical bearing 150 located outside the sliding bearing 140, a snap-in stud 160 connected to the top of the connecting column 130, and a spring 170 sleeved on the outside of the connecting column 130 with its two ends abutting the mounting bar 110 and the support block 120, respectively. This ensures that the welding gun is in a normal position on the arc surface, makes the resistance on both sides of the welding gun consistent, avoids structural arc deflection, and improves welding quality.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements or improvements within the spirit of the present invention are included in the scope of the claims of the present invention.

Claims

1. A boiler tube stud welding gun, characterized by: The invention comprises a welding gun mounting plate, a welding gun unit mounted on the welding gun mounting plate, and two adaptive side support feet respectively located on both sides of the welding gun unit and indirectly connected to the welding gun mounting plate; the adaptive side support feet comprise a mounting bar, a support block located below the mounting bar, a connecting column connected to the top of the support block and passing through the mounting bar, a sliding bearing located in the mounting bar and slidably connected to the connecting column, a joint bearing located outside the sliding bearing, a clamping stud connected to the top of the connecting column, and a spring sleeved on the outside of the connecting column and with both ends abutting against the mounting bar and the support block respectively; a through hole is provided on the mounting bar, and the mounting bar is located near the top of the through hole. A step groove is provided, in which the sliding bearing and the spherical bearing are located, and the connecting column passes through the through hole and the sliding bearing. A first screw hole communicating with the step groove is provided on one side of the mounting bar, and a fixing screw is threadedly connected to the first screw hole and abuts against the outer surface of the spherical bearing. A second screw hole is provided on the top of the connecting column, and the clamping stud is threadedly connected to the second screw hole after passing through a pad. The pad abuts against the top surface of the mounting bar, and the bottom surface of the support block has an inward concave arc. The structure of the boiler tube stud welding gun can ensure that the welding gun is in a normal position to the arc surface of the boiler tube, so that the resistance on both sides of the welding gun is consistent, avoiding structural arc deviation.

2. The boiler tube stud welding gun according to claim 1, characterized in that: The welding gun mounting plate is provided with a side plate on both sides of the welding gun unit, and a T-shaped plate is connected to the side plate, and the large end of the T-shaped plate is arranged away from the side plate.

3. The boiler tube stud welding gun according to claim 2, characterized in that: The two ends of the top of one adaptive side support leg are respectively connected to one side of the big end of the two T-shaped plates, and the two ends of the top of the other adaptive side support leg are respectively connected to the other side of the big end of the two T-shaped plates.

4. The boiler tube stud welding gun according to claim 3, characterized in that: The mounting strips are arranged perpendicularly to the side panels.

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