Arc welding device for spiral steel pipe

Abstract

The invention discloses a spiral steel pipe electric arc welding device which comprises a bearing assembly, a base, a connecting seat arranged above the base, a supporting rod arranged on the inner side of the connecting seat, an adjusting assembly, an adjusting supporting seat arranged on the inner side of the connecting seat, a first driving piece arranged above the adjusting supporting seat and a sliding assembly. Comprising connecting frames arranged between the supporting rods and a sliding transverse plate arranged between the connecting frames, the bearing assembly further comprises friction plates arranged on the inner sides of the supporting rods, and a fixing base is arranged above the base. And then the sliding rod drives the connecting body below and the friction rollers on the inner side of the connecting body to get close to the inner side, and the friction rollers on the two sides make contact with the spiral steel pipes, so that welding seams between the spiral steel pipes are more compact through the friction rollers, gaps of the welding seams are reduced, and the welding efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of spiral steel pipe welding, in particular to a spiral steel pipe arc welding device. Background Art

[0002] Spiral steel pipe is a long strip of steel with a spiral seam. It is made of strip steel coil as raw material, extruded at room temperature, and welded by automatic double-wire double-sided submerged arc welding. Its production process is to curl the strip steel and form it through a spiral-shaped former, and then weld and cool it. This type of steel pipe is mainly used in construction, water conservancy, electricity, petroleum, chemical industry and other fields, as a fluid conveying pipeline, structural support and pressure vessel.

[0003] During the welding process of spiral steel pipe, the spiral steel pipe will be in a rotating motion. When welding is performed during the motion process, the weld spacing between the spiral steel pipes will change. When the weld spacing is large, it may affect the integrity of the entire structure, causing the spiral steel pipe to cause various welding defects and performance degradation, seriously affecting the safe operation and service life of the pipeline. Summary of the invention

[0004] The object of the present invention is to provide a spiral steel pipe arc welding device to solve at least one technical problem existing in the above-mentioned prior art.

[0005] To achieve the above object, the present invention provides the following technical solution: a spiral steel pipe arc welding device, comprising:

[0006] The bearing assembly comprises a base, a connecting seat arranged above the base, and a supporting rod arranged inside the connecting seat; and

[0007] An adjustment assembly includes an adjustment support seat disposed inside the connection seat and a first driving member disposed above the adjustment support seat; and

[0008] The sliding assembly comprises a connecting frame arranged between the supporting rods and a sliding transverse plate arranged between the connecting frames.

[0009] Preferably, the bearing assembly further includes a friction plate arranged on the inner side of the support rod.

[0010] Preferably, a fixing seat is provided above the base, a connecting disk is provided above the fixing seat, a supporting plate is provided above the connecting disk, a supporting shaft is provided on the inner side of the supporting plate, and a rotating wheel is provided on the outer side of the supporting shaft.

[0011] Preferably, a concave groove is provided on the top of the fixing seat, and both sides of the concave groove are inclined toward the center.

[0012] Preferably, the adjustment assembly further comprises a connecting sleeve arranged above the first driving member, a fixing ring is arranged above the connecting sleeve, and an adjusting rod is arranged on the inner side of the connecting sleeve.

[0013] Preferably, the sliding assembly also includes a supporting plate arranged below the sliding horizontal plate, a threaded rod is arranged between the supporting plates, a sliding block is arranged on the outer side of the threaded rod, a connecting block is arranged below the sliding block, a first inclined panel is arranged below the connecting block, a second inclined panel is arranged at the other end below the connecting block, and the connecting frame is sleeved on the outer side of the adjusting rod.

[0014] Preferably, the first inclined panel and the second inclined panel are in a V shape, and the outer ends of the first inclined panel and the second inclined panel are inclined toward both sides.

[0015] Preferably, it also includes a pressing component, which includes a connecting transverse plate arranged below the first inclined plate, through grooves are opened on both sides of the inner side of the connecting transverse plate, an oblique groove is opened in the through groove, a welding gun is provided at the center below the connecting transverse plate, a first elastic member is provided on the outer side of the welding gun, the first elastic member is a compression spring, a limiting ring is provided on the outer side of the welding gun, a protective frame is sleeved on the outer side of the welding gun, a sliding rod is provided in the through groove, a limiting plate is provided above the sliding rod, a sliding curved surface block is provided on the outer side of the sliding rod, a second elastic member is sleeved on the outer side of the sliding rod, the second elastic member is a reset spring, a connecting body is provided below the sliding rod, a placement groove is opened on the inner side of the connecting body, the placement groove array is provided on the inner side of the connecting body, limiting grooves are opened on both sides of the placement groove, a support frame is provided inside the placement groove, the support frame is U-shaped, a rotating shaft is provided on the inner side of the support frame, and a friction roller is provided on the outer side of the rotating shaft.

[0016] Preferably, the protective frame is arc-shaped at the bottom, and the lower end of the connector is arc-shaped.

[0017] Preferably, it also includes a polishing assembly, which includes a connecting long plate arranged below the second inclined plate, a connecting frame arranged below the connecting long plate, one side of the connecting frame is arranged in an arc shape, an inclined plate is arranged at one end of the connecting frame, a second driving member is arranged at one end of the inclined plate, a rotating plate is arranged on the outer side of the second driving member, a placing plate is arranged above the rotating plate, a fixed frame is arranged at one end of the placing plate, an operating shaft is arranged on the inner side of the fixed frame, a polishing roller is arranged on the outer side of the operating shaft, a fixed long plate is arranged at the other end of the rotating plate, a fixed supporting plate is arranged at one end of the fixed supporting plate, and a cleaning wipe is arranged at one end of the fixed supporting plate.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: the sliding curved block on the outside of the sliding rod slides on the oblique groove, so that the sliding rods are brought closer to each other, and then the sliding rod drives the connecting body below and the friction rollers on the inside of the connecting body to move closer inward. Because the friction rollers on both sides are in contact with the spiral steel pipes, the friction rollers make the welds between the spiral steel pipes more compact, thereby reducing the gap in the welds and improving the welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the local structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the pressing assembly of the present invention;

[0022] Figure 4 This is an expanded view of the pressing assembly of the present invention;

[0023] Figure 5 It is a schematic diagram of the grinding assembly of the present invention.

[0024] In the figure: 1, bearing assembly; 11, base; 12, connecting seat; 13, support rod; 14, fixed seat; 15, connecting plate; 16, support plate; 17, support shaft; 18, rotating wheel; 19, friction plate; 2, adjustment assembly; 21, adjustment support seat; 22, first driving member; 23, connecting sleeve; 24, adjustment rod; 3, sliding assembly; 31, connecting frame; 32, sliding horizontal plate; 33, bearing plate; 34, threaded rod; 35, sliding block; 36, connecting block; 37, first inclined panel; 38, second inclined panel; 4, pressing assembly; 41, connecting horizontal plate; 411, oblique groove; 42, welding Gun; 421, first elastic member; 422, limiting ring; 43, sliding rod; 431, limiting plate; 432, sliding curved surface block; 433, second elastic member; 44, protective frame; 45, connector; 451, placement slot; 452, limiting slot; 46, support frame; 461, rotating shaft; 47, friction roller; 5, grinding assembly; 51, connecting long plate; 52, connecting frame; 53, oblique plate; 54, second driving member; 55, rotating plate; 56, placement plate; 561, fixed frame; 562, operating shaft; 57, grinding roller; 58, fixed long plate; 581, fixed bearing plate; 582, cleaning wipe. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] For example, see Figures 1 to 5 The present invention provides a technical solution: a spiral steel pipe arc welding device, comprising: a bearing assembly 1, comprising a base 11, a connecting seat 12 arranged above the base 11 and a support rod 13 arranged inside the connecting seat 12; and

[0027] The adjustment assembly 2 includes an adjustment support seat 21 disposed inside the connection seat 12 and a first driving member 22 disposed above the adjustment support seat 21; and,

[0028] The sliding assembly 3 includes a connecting frame 31 disposed between the support rods 13 and a sliding transverse plate 32 disposed between the connecting frames 31 .

[0029] The bearing assembly 1 further includes a friction plate 19 disposed inside the support rod 13 .

[0030] A fixing seat 14 is disposed above the base 11 , a connecting plate 15 is disposed above the fixing seat 14 , a supporting plate 16 is disposed above the connecting plate 15 , a supporting shaft 17 is disposed inside the supporting plate 16 , and a rotating wheel 18 is disposed outside the supporting shaft 17 .

[0031] A concave groove is provided on the top of the fixing seat 14, and both sides of the concave groove are inclined toward the center.

[0032] The adjustment assembly 2 further includes a connecting sleeve 23 disposed above the first driving member 22 . A fixing ring is disposed above the connecting sleeve 23 , and an adjustment rod 24 is disposed inside the connecting sleeve 23 .

[0033] The sliding assembly 3 also includes a bearing plate 33 arranged below the sliding cross plate 32, a threaded rod 34 is provided between the bearing plates 33, a sliding block 35 is provided on the outer side of the threaded rod 34, a connecting block 36 is provided below the sliding block 35, a first inclined panel 37 is provided below the connecting block 36, a second inclined panel 38 is provided at the other end below the connecting block 36, and the connecting frame 31 is sleeved on the outer side of the adjusting rod 24.

[0034] The first inclined plate 37 and the second inclined plate 38 are in a V shape, and outer ends of the first inclined plate 37 and the second inclined plate 38 are inclined toward both sides.

[0035] Among them, the first inclined panel 37 and the second inclined panel 38 are V-shaped in the middle, and the first inclined panel 37 and the lower end of the second inclined panel 38 are spaced relatively large, so that when the grinding component 5 is rotationally grinding the spiral steel pipe weld, it is avoided from colliding with the pressing component 4 and causing damage to the welding device.

[0036] Among them, the adjusting rod 24 is driven to rotate by the first driving member 22. During the movement of the first driving member 22, the first driving member 22 will drive the outer connecting frame 31 to adjust, so that the connecting frame 31 drives the subsequent components and the welding gun and the grinding component 5 to adjust, so that the pressing component 4 and the grinding component 5 can accurately weld and grind the spiral steel pipe, thereby avoiding the workers using tools to adjust the spiral steel pipe, greatly reducing the welding time, and then improving their work efficiency.

[0037] Specifically, when the spiral steel pipe needs to be welded, the spiral steel pipe to be welded is placed between the rotating wheels 18 above the fixing seat 14. At this time, the first driving member 22 is driven, and the adjusting rod 24 is driven to rotate through the first driving member 22. During the movement of the first driving member 22, the first driving member 22 will drive the outer connecting frame 31 to rise and fall. At this time, the connecting frame 31 will drive the inner sliding cross plate 32 to rise and fall. During the lifting and lowering of the sliding cross plate 32, the sliding block 35 and the connecting block 36 below are driven to rise and fall through the sliding cross plate 32, and finally the components below, the pressing component 4 and the grinding component are driven through the first inclined panel 37. 5 is raised and lowered until the pressing assembly 4 and the grinding assembly 5 are adjusted to a height suitable for the spiral steel pipe and a distance for welding. When the height adjustment is completed, by rotating the threaded rod 34, the threaded rod 34 will drive the outer sliding block 35 and the connecting block 36 below the sliding block 35 to move, and then drive the first inclined plate 37 and the second inclined plate 38 below as well as the pressing assembly 4 and the grinding assembly 5 to move through the connecting block 36 until they are adapted to the best welding position of the spiral steel pipe, and then the spiral steel pipe is welded by the pressing assembly 4, so that the welding of spiral steel pipes of different specifications is realized by adjusting the welding gun.

[0038] Embodiment 2, further explained on the basis of embodiment 1, also includes a pressing assembly 4, the pressing assembly 4 includes a connecting transverse plate 41 arranged below the first inclined plate 37, the connecting transverse plate 41 has through grooves on both sides of the inner side, and an oblique groove 411 is opened in the through groove, a welding gun 42 is provided at the center below the connecting transverse plate 41, a first elastic member 421 is provided on the outer side of the welding gun 42, the first elastic member 421 is a compression spring, a limiting ring 422 is provided on the outer side of the welding gun 42, a protective frame 44 is provided on the outer side of the welding gun 42, a sliding rod 43 is provided in the through groove, and the upper part of the sliding rod 43 A limit plate 431 is provided, a sliding curved surface block 432 is provided on the outer side of the sliding rod 43, a second elastic member 433 is sleeved on the outer side of the sliding rod 43, the second elastic member 433 is a reset spring, a connecting body 45 is provided below the sliding rod 43, a placement groove 451 is provided on the inner side of the connecting body 45, the placement groove 451 is arranged on the inner side of the connecting body 45, and limit grooves 452 are provided on both sides of the placement groove 451, a support frame 46 is provided inside the placement groove 451, the support frame 46 is U-shaped, a rotating shaft 461 is provided on the inner side of the support frame 46, and a friction roller 47 is provided on the outer side of the rotating shaft 461.

[0039] The lower portion of the protection frame 44 is in an arc shape, and the lower end of the connecting body 45 is in an arc shape.

[0040] Among them, under the action of the elastic force of the second elastic member 433 on the outer side of the sliding rod 43 at both ends and the action of gravity, the sliding rod 43 at both ends is reset after welding is completed, so that the sliding rod 43 at both ends is always at the outermost side of the through groove, and then it can be used next time.

[0041] Among them, the protective frame 44 on the outside of the welding gun 42 blocks the sparks that splash outward when the welding gun 42 welds the weld of the spiral steel pipe, thereby avoiding the sparks splashing during the welding process and causing harm to the surrounding workers and damage to the equipment.

[0042] Specifically, when the first inclined plate 37 drives the pressing assembly 4 to move to the spiral steel pipe welding position, when the pressing assembly 4 moves down and welds the spiral steel pipe, since the height of the connecting body 45 is higher than the welding gun 42, the connecting body 45 will approach the spiral steel pipe before the welding gun 42. When the connecting body 45 moves down and approaches the spiral steel pipe, the connecting body 45 will drive the friction roller 47 below to approach the spiral steel pipe. When the friction roller 47 contacts the spiral steel pipe, the pressing assembly 4 will continue to move down until the welding gun 42 approaches the spiral steel pipe. When the welding gun 42 approaches the spiral steel pipe, the connecting body 45 and the sliding rod 43 and other components will be squeezed. At this time, the connecting body 45 will overcome the elastic force of the second elastic member 433 and drive the upper sliding rod 43 to move upward. When the sliding rod 43 moves upward, the sliding curved surface block 432 on the outside of the sliding rod 43 will slide on the inclined groove 411, so that the sliding rods 43 are close to each other, and then the sliding rod 43 drives the connecting body 45 below and the friction roller 47 on the inside of the connecting body 45 to move inward. Because the friction rollers 47 on both sides are in contact with the spiral steel pipes, the friction rollers 47 make the welds between the spiral steel pipes more compact, thereby reducing the gap in the weld and improving the welding efficiency.

[0043] Embodiment 3 is further explained on the basis of embodiment 1, and also includes a grinding component 5. The grinding component 5 includes a connecting long plate 51 arranged below the second inclined plate 38, a connecting frame 52 is arranged below the connecting long plate 51, one side of the connecting frame 52 is arranged in an arc shape, an inclined plate 53 is arranged at one end of the connecting frame 52, a second driving member 54 is arranged at one end of the inclined plate 53, a rotating plate 55 is arranged on the outer side of the second driving member 54, a placing plate 56 is arranged above the rotating plate 55, a fixing frame 561 is arranged at one end of the placing plate 56, an operating shaft 562 is arranged on the inner side of the fixing frame 561, a grinding roller 57 is arranged on the outer side of the operating shaft 562, a fixed long plate 58 is arranged at the other end of the rotating plate 55, a fixed supporting plate 581 is arranged at one end of the fixed supporting plate 581, and a cleaning wipe 582 is arranged at one end of the fixed supporting plate 581.

[0044] Among them, when the grinding roller 57 grinds the weld of the spiral steel pipe for a long time, its surface will absorb part of the burrs or powder after grinding, making its surface smooth, which greatly reduces its grinding efficiency. At this time, one side of the connecting frame 52 is set to an arc shape, and the grinding roller 57 will contact the protrusions on the surface of the connecting frame 52 when it rotates. At this time, the grinding roller 57 will contact the arc and uneven surface of the connecting frame 52, and the burrs and powder on the surface will fall off through the vibration of the grinding roller 57, thereby improving the grinding efficiency of the grinding roller 57 and ensuring its grinding efficiency.

[0045] Among them, after the burrs and powder on the surface of the grinding roller 57 fall off after cleaning, part of them will be adsorbed to the surface of one arc-shaped end of the connecting frame 52. When the surface of the connecting frame 52 is contaminated with too much powder and burrs, the second driving member 54 will drive the fixed long plates 58 at both ends to rotate, and the fixed long plates 58 will drive the fixed supporting plate 581 at one end to rotate, and the fixed supporting plate 581 will drive the cleaning wipe 582 on the surface of the fixed supporting plate 581 to rotate, and the cleaning wipe 582 will contact the arc-shaped surface of the connecting frame 52 and clean its surface, so as to clean out the burrs and powder on the arc-shaped surface of the connecting frame 52 and enable it to continue to clean the grinding roller 57.

[0046] Specifically, the spiral steel pipe will move at a uniform speed during the welding process. When the welding is completed, the spiral steel pipe will move to the bottom of the grinding assembly 5. At this time, the second driving member 54 is driven to drive the rotating shaft to rotate through the second driving member 54. The rotating shaft will drive the outer rotating plate 55 to rotate. During the rotation of the rotating plate 55, the rotating plate 55 will drive the placement plate 56 at one end to rotate. The placement plate 56 drives the inner fixing frame 561 and the operating shaft 562 to rotate. The operating shaft 562 drives the outer grinding roller 57 to rotate. When the grinding roller 57 rotates, the grinding roller 57 will grind the protruding parts or burrs of the spiral steel pipe welding, thereby making the surface of the spiral steel pipe smooth, making its appearance more perfect, and preventing the protruding parts or burrs on the outside from injuring workers.

[0047] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and the drawings can also be directly processed according to the existing technical common sense. At the same time, the connection method of each component adopts the mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description will be given here.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spiral steel pipe arc welding device, characterized in that: include: A bearing assembly (1) comprises a base (11), a connecting seat (12) arranged above the base (11), and a supporting rod (13) arranged inside the connecting seat (12); and, An adjustment assembly (2) comprises an adjustment support seat (21) arranged inside the connection seat (12) and a first driving member (22) arranged above the adjustment support seat (21); and, The sliding assembly (3) comprises a connecting frame (31) arranged between the support rods (13) and a sliding transverse plate (32) arranged between the connecting frames (31).

2. The spiral steel pipe arc welding device according to claim 1, characterized in that: The bearing assembly (1) further comprises a friction plate (19) arranged on the inner side of the support rod (13).

3. The spiral steel pipe arc welding device according to claim 2, characterized in that: A fixing seat (14) is provided above the base (11), a connecting plate (15) is provided above the fixing seat (14), a supporting plate (16) is provided above the connecting plate (15), a supporting shaft (17) is provided on the inner side of the supporting plate (16), and a rotating wheel (18) is provided on the outer side of the supporting shaft (17).

4. The spiral steel pipe arc welding device according to claim 3, characterized in that: A concave groove is provided on the top of the fixing seat (14), and both sides of the concave groove are inclined toward the center.

5. The spiral steel pipe arc welding device according to claim 4, characterized in that: The adjustment assembly (2) further comprises a connecting sleeve (23) arranged above the first driving member (22), a fixing ring is arranged above the connecting sleeve (23), and an adjustment rod (24) is arranged inside the connecting sleeve (23).

6. The spiral steel pipe arc welding device according to claim 5, characterized in that: The sliding assembly (3) also includes a bearing plate (33) arranged below the sliding horizontal plate (32), a threaded rod (34) is arranged between the bearing plates (33), a sliding block (35) is arranged on the outer side of the threaded rod (34), a connecting block (36) is arranged below the sliding block (35), a first inclined panel (37) is arranged below the connecting block (36), and a second inclined panel (38) is arranged at the other end below the connecting block (36), and the connecting frame (31) is sleeved on the outer side of the adjusting rod (24).

7. The spiral steel pipe arc welding device according to claim 6, characterized in that: The first inclined panel (37) and the second inclined panel (38) are in a V shape, and the outer ends of the first inclined panel (37) and the second inclined panel (38) are inclined toward both sides.

8. The spiral steel pipe arc welding device according to claim 7, characterized in that: The pressing assembly (4) further comprises a pressing assembly (4), wherein the pressing assembly (4) comprises a connecting transverse plate (41) arranged below the first inclined plate (37), through grooves are provided on both sides of the inner side of the connecting transverse plate (41), an oblique groove (411) is provided in the through groove, a welding gun (42) is provided at the center below the connecting transverse plate (41), a first elastic member (421) is provided on the outer side of the welding gun (42), the first elastic member (421) is a compression spring, a limiting ring (422) is provided on the outer side of the welding gun (42), a protective frame (44) is sleeved on the outer side of the welding gun (42), a sliding rod (43) is provided in the through groove, a limiting plate (431) is provided above the sliding rod (43), and the sliding rod (43) is provided with a first elastic member (421) on the outer side of the welding gun (42). A sliding curved surface block (432) is provided on the outer side of the movable rod (43), a second elastic member (433) is sleeved on the outer side of the sliding rod (43), the second elastic member (433) is a reset spring, a connecting body (45) is provided below the sliding rod (43), a placement groove (451) is provided on the inner side of the connecting body (45), the placement groove (451) is arranged on the inner side of the connecting body (45), limiting grooves (452) are provided on both sides of the placement groove (451), a support frame (46) is provided inside the placement groove (451), the support frame (46) is U-shaped, a rotating shaft (461) is provided on the inner side of the support frame (46), and a friction roller (47) is provided on the outer side of the rotating shaft (461).

9. The spiral steel pipe arc welding device according to claim 8, characterized in that: The lower part of the protection frame (44) is in an arc shape, and the lower end of the connecting body (45) is in an arc shape.

10. The spiral steel pipe arc welding device according to claim 9, characterized in that: The grinding assembly (5) further comprises a grinding assembly (5), wherein the grinding assembly (5) comprises a connecting long plate (51) arranged below the second inclined plate (38), a connecting frame (52) is arranged below the connecting long plate (51), one side of the connecting frame (52) is arranged in an arc shape, an inclined plate (53) is arranged at one end of the connecting frame (52), a second driving member (54) is arranged at one end of the inclined plate (53), a rotating plate (55) is arranged on the outer side of the second driving member (54), and the rotating plate (55) is arranged on the outer side of the second driving member (54). A placement plate (56) is provided above the rotating plate (55), a fixing frame (561) is provided at one end of the placement plate (56), an operating shaft (562) is provided on the inner side of the fixing frame (561), a grinding roller (57) is provided on the outer side of the operating shaft (562), a fixed long plate (58) is provided at the other end of the rotating plate (55), a fixed supporting plate (581) is provided at one end of the fixed supporting plate (581), and a cleaning wipe (582) is provided at one end of the fixed supporting plate (581).

Images