Automatic welding device for butt joint of rolled plate ends in steel pipe machining

Abstract

The utility model relates to an automatic welding device for butt joint of rolled plate ends in steel pipe machining, and belongs to the technical field of steel pipe machining. The transverse moving mechanism drives the welding gun and the welding wire to move along the welding seam between the ends of the strip coil, meanwhile, the welding wire conveying mechanism conveys the welding wire to move, the automatic welding function of butt joint of the plate ends of the strip coil is achieved, welding defects caused by improper manual operation are effectively reduced, and production efficiency is improved. The stability of the welding process and the welding quality of the spiral pipe are guaranteed, a production line does not need to be paused, smooth operation of the production line is guaranteed, and the production efficiency is remarkably improved; the position of the welding gun is flexibly adjusted through the longitudinal adjusting mechanism and the lifting mechanism, and the welding precision and the application range of the device are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to steel pipe processing technical field, concretely relates to a kind of automatic welding device of steel pipe processing strip coil plate end butt joint. BACKGROUND

[0002] In steel pipe manufacturing industry, the production of spiral pipe is a key process. The process involves uncoiling the steel strip coil into a plate, then feeding into the unit for forming, forming the pipe blank, and welding into a spiral steel pipe at the gap by submerged arc welding technology. In the traditional production mode, when the last strip coil is about to run out, the next strip coil is needed to be coiled into the unit, so that the tail end (plate) of the last strip coil and the head end (plate) of the next strip coil are butt jointed as soon as possible (including alignment, welding, correction, etc.).

[0003] However, the traditional welding operation needs to pause the production line, and then the welding is carried out by manual operation. Not only the welding speed is slow, the production efficiency is low, it is difficult to meet the continuous production demand, but also due to the influence of the technical level, experience and other factors of the operator, it is difficult to guarantee the welding quality, easy to appear welding defects, affecting the quality and use performance of the steel pipe. UTILITY MODEL CONTENT

[0004] In order to overcome the problem that the traditional welding operation in the background art needs to pause the production line, and then the welding is carried out by manual operation. Not only the welding speed is slow, the production efficiency is low, it is difficult to meet the continuous production demand, but also due to the influence of the technical level, experience and other factors of the operator, it is difficult to guarantee the welding quality, easy to appear welding defects, affecting the quality and use performance of the steel pipe, the utility model provides a kind of automatic welding device of steel pipe processing strip coil plate end butt joint;Through horizontal moving mechanism, welding torch and welding wire are moved along the weld between strip coil end, at the same time, welding wire is moved by welding wire conveying mechanism, the automatic welding function of strip coil plate end butt joint is realized, welding defects caused by improper operation are effectively reduced, the stability of welding process and the welding quality of spiral pipe are guaranteed, the production line does not need to be paused, the smooth running of production line is ensured, the production efficiency is significantly improved;The position of welding torch is flexibly adjusted by longitudinal adjusting mechanism and lifting mechanism, the welding precision and application range of the device are improved.

[0005] In order to achieve the above object, the utility model is through the following technical scheme realizes: a kind of automatic welding device of steel pipe processing strip plate end butt joint mainly includes stand, mounting plate, horizontal moving mechanism, longitudinal adjusting mechanism, L-shaped support rod, welding torch, welding wire conveying mechanism, lifting mechanism, the horizontal moving mechanism is installed at the top of two groups of stand by mounting plate, welding wire conveying mechanism is installed on horizontal moving mechanism, longitudinal adjusting mechanism is installed on horizontal moving mechanism, lifting mechanism is vertically installed on longitudinal adjusting mechanism, longitudinal adjusting mechanism and lifting mechanism are located the directly below of welding wire conveying mechanism, L-shaped support rod is installed on lifting mechanism by fastener, L-shaped support rod horizontal section end is equipped with welding torch.

[0006] The horizontal moving mechanism includes a cross beam, a first lead screw, guide rails, a sliding plate, a first motor and a first sliding block.

[0007] The longitudinal adjusting mechanism includes a first mounting seat, first guide rods, a second lead screw, a first hand wheel and a second sliding block. The lifting mechanism includes a second mounting seat, second guide rods, a third lead screw, a second hand wheel and a third sliding block.

[0008] The welding wire conveying mechanism includes a second motor, a speed reducer, a U-shaped limiting plate, drive wheels and a limiting tube.

[0009] The utility model has the advantages of:

[0010] The utility model discloses a kind of automatic welding devices of steel pipe processing strip coil plate end butt joint, and the automatic welding device of steel pipe processing strip coil plate end butt joint mainly includes stand 1, mounting plate 2, horizontal moving mechanism 3, longitudinal adjusting mechanism 4, L-shaped support rod 5, welding torch 6, welding wire conveying mechanism 7, lifting mechanism 8, the horizontal moving mechanism 3 is installed in the top of two groups of stand 1 by mounting plate 2, welding wire conveying mechanism 7 is installed on horizontal moving mechanism 3, longitudinal adjusting mechanism 4 is installed on horizontal moving mechanism 3, lifting mechanism 8 is vertically installed on longitudinal adjusting mechanism 4, longitudinal adjusting mechanism 4 and lifting mechanism 8 are located below welding wire conveying mechanism 7, L-shaped support rod 5 is installed on lifting mechanism 8 by fastener, and L-shaped support rod 5 horizontal section end is equipped with welding torch 6. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the axonometric drawing of the utility model.

[0012] Figure 2 It is longitudinal adjusting mechanism, lifting mechanism and welding wire conveying mechanism stereoscopic schematic view.

[0013] Figure 3 It is Figure 1 Partial enlarged view of A in the figure.

[0014] Figure 4 It is Figure 2 Partial enlarged view of B in the figure. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical scheme and beneficial effect of the utility model more clearly, the preferred embodiment of the utility model will be explained in detail below, to facilitate technical personnel understanding, with the drawings.

[0016] The utility model discloses a kind of automatic welding devices of steel pipe processing strip coil plate end butt joint, and the automatic welding device of steel pipe processing strip coil plate end butt joint mainly includes stand 1, mounting plate 2, horizontal moving mechanism 3, longitudinal adjusting mechanism 4, L-shaped support rod 5, welding torch 6, welding wire conveying mechanism 7, lifting mechanism 8, the horizontal moving mechanism 3 is installed in the top of two groups of stand 1 by mounting plate 2, welding wire conveying mechanism 7 is installed on horizontal moving mechanism 3, longitudinal adjusting mechanism 4 is installed on horizontal moving mechanism 3, lifting mechanism 8 is vertically installed on longitudinal adjusting mechanism 4, longitudinal adjusting mechanism 4 and lifting mechanism 8 are located below welding wire conveying mechanism 7, L-shaped support rod 5 is installed on lifting mechanism 8 by fastener, and L-shaped support rod 5 horizontal section end is equipped with welding torch 6.

[0017] The operator adjusts the position of the welding gun 6 in the horizontal direction through the longitudinal adjusting mechanism 4, so that the welding gun 6 is directly above the end seam of the strip coil, then adjusts the distance between the head of the welding gun 6 and the seam through the lifting mechanism 8, and then threads the welding wire on the welding wire conveying mechanism 7 and connects it with the welding gun 6, so as to ensure that the welding wire is smoothly fed into the welding gun 6; during welding, the operator turns on the welding gun 6 switch to start the welding program, the welding wire at the head of the welding gun 6 starts to melt and forms an arc, the welding wire is continuously fed into the welding gun 6 through the welding wire conveying mechanism 7, the automatic conveying function of the welding wire is realized, at the same time, the welding gun 6 is moved along the seam of the end of the strip coil through the transverse moving mechanism 3, the automatic welding function of the butt joint of the end of the strip coil is realized, the welding defects caused by improper operation are effectively reduced, the stability of the welding process and the welding quality of the spiral pipe are ensured, the production line does not need to be paused, the smooth operation of the production line is ensured, and the production efficiency is significantly improved; the position of the welding gun is flexibly adjusted through the longitudinal adjusting mechanism and the lifting mechanism, and the welding precision and the application range of the device are improved.

[0018] The transverse moving mechanism 3 comprises a cross beam 301, a first lead screw 302, guide rails 302, a sliding plate 303, a first motor 304 and a first sliding block 305, the end of the cross beam 301 is mounted on the mounting plate 2, the first lead screw 302 is mounted on the cross beam 301 through a bearing seat, the mounting plate 2 is provided with the first motor 304 at the side end, the first motor 304 is in transmission connection with the first lead screw 302, the cross beam 301 is provided with the guide rails 302 on the upper side and the lower side, the sliding plate 303 is slidably mounted on the guide rails 302 through the first sliding block 305 and is in threaded connection with the first lead screw 302; the longitudinal adjusting mechanism 4 comprises a first mounting seat 401, first guide rods 402, a second lead screw 403, a first hand wheel 404 and a second sliding block 405, the lifting mechanism 8 comprises a second mounting seat 801, second guide rods 802, a third lead screw 803, a second hand wheel 804 and a third sliding block 805, the sliding plate 303 is provided with a connecting plate 306, the first mounting seat 401 is longitudinally mounted on the connecting plate 306, two groups of first guide rods 402 are mounted on the first mounting seat 401, the second lead screw 403 is mounted on the first mounting seat 401 through a bearing and is provided at the end with the first hand wheel 404, is located between the first guide rods 402, the second sliding block 405 is slidably mounted on the first guide rods 402 and is in threaded connection with the second lead screw 403, the second mounting seat 801 is vertically mounted on the second sliding block 405, two groups of second guide rods 802 are mounted on the second mounting seat 801, the third lead screw 803 is mounted on the second mounting seat 801 through a bearing and is provided at the end with the second hand wheel 804, is located between the second guide rods 802, the third sliding block 805 is slidably mounted on the first guide rods 402 and is in threaded connection with the third lead screw 803, and the L-shaped supporting rod 5 is vertically mounted on the third sliding block 805.

[0019] The operator rotates the first hand wheel 404 to drive the second sliding block 405 to move along the first guide rod 402 through the second screw rod 403, further drives the second mounting base 801 to move longitudinally, so that the welding gun 6 is directly above the end weld of the coil, then the operator rotates the second hand wheel 804 to drive the third sliding block 805 to move along the second guide rod 802 through the third screw rod 803, further drives the L-shaped support rod 5 to move downward, so as to adjust the distance between the head of the welding gun 6 and the weld, then the first motor 304 is started to drive the first screw rod 302 to rotate through the first motor 304, further drives the sliding plate 303 to move transversely along the guide rail 302, so as to drive the welding gun 6 to move along the weld of the end of the coil, so as to realize the automatic welding function of the end butt joint of the coil, without pausing the production line, so as to ensure the smooth operation of the production line and significantly improve the production efficiency.

[0020] The welding wire conveying mechanism 7 comprises a second motor 701, a speed reducer 702, a U-shaped limiting plate 703, a drive wheel 704 and a limiting tube 705, the side of the sliding plate 303 is provided with a support plate 307, the second motor 701 and the speed reducer 702 are installed on the support plate 307, the second motor 701 is in transmission connection with the speed reducer 702, the top end of the speed reducer 702 is installed with the U-shaped limiting plate 703, two groups of drive wheels 704 for driving the welding wire to move are installed on the U-shaped limiting plate 703, the output shaft of the speed reducer 702 is in transmission connection with one of the two groups of drive wheels 704, the U-shaped limiting plate 703 is provided with limiting holes 7031 for the welding wire to pass through, and the limiting holes 7031 are in communication with the welding gun 6 through the limiting tube 705; the operator inserts the welding wire into the limiting tube 705 along the limiting holes 7031, so as to ensure that the welding wire can be smoothly sent into the welding gun 6, and the welding wire is limited by the drive wheel 704; when welding, the second motor 701 is started to drive the drive wheel 704 to rotate through the speed reducer 702, so as to send the welding wire into the welding gun 6, thereby realizing the automatic conveying function of the welding wire and improving the welding efficiency.

[0021] Working process:

[0022] Before work, the operator rotates the first hand wheel 404 to drive the second sliding block 405 to move along the first guide rod 402 through the second screw rod 403, further drives the second mounting base 801 to move longitudinally, so that the welding gun 6 is directly above the end weld of the coil, then the operator rotates the second hand wheel 804 to drive the third sliding block 805 to move along the second guide rod 802 through the third screw rod 803, further drives the L-shaped support rod 5 to move downward, so as to adjust the distance between the head of the welding gun 6 and the weld, then the operator inserts the welding wire into the limiting tube 705 along the limiting holes 7031 and connects the welding gun 6, so as to ensure that the welding wire can be smoothly sent into the welding gun 6 and the welding wire is limited by the drive wheel 704.

[0023] When welding, the operator opens the welding gun 6 switch, starts the welding program, the welding wire inside the welding gun 6 starts to melt and forms an arc, the second motor 701 drives the driving wheel 704 to rotate through the speed reducer 702, and the welding wire is sent into the welding gun 6, realizing the automatic conveying function of the welding wire; at the same time, the first screw rod 302 is driven to rotate through the first motor 304, further driving the sliding plate 303 to move along the guide rail 302 transversely, thereby driving the welding gun 6 to move along the weld of the end of the strip coil, realizing the automatic welding function of the butt joint of the strip coil plate end, effectively reducing the welding defects caused by improper human operation, ensuring the stability of the welding process and the welding quality of the spiral pipe, without pausing the production line, ensuring the smooth operation of the production line, and significantly improving the production efficiency; the position of the welding gun is flexibly adjusted through the longitudinal adjusting mechanism and the lifting mechanism, improving the welding precision and the application range of the device.

[0024] Finally, it should be pointed out that the above preferred embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present application.

Claims

1. An automatic welding apparatus for butt joining of the end of a coil of strip processed from a steel pipe, characterized by: The automatic welding device for butt joint of steel pipe processing strip coil end includes a stand (1), a mounting plate (2), a horizontal moving mechanism (3), a longitudinal adjusting mechanism (4), an L-shaped support rod (5), a welding gun (6), a welding wire conveying mechanism (7), and a lifting mechanism (8). The horizontal moving mechanism (3) is installed at the top of two groups of stands (1) through the mounting plate (2). The welding wire conveying mechanism (7) is installed on the horizontal moving mechanism (3). The longitudinal adjusting mechanism (4) is installed on the horizontal moving mechanism (3). The lifting mechanism (8) is vertically installed on the longitudinal adjusting mechanism (4). The longitudinal adjusting mechanism (4) and the lifting mechanism (8) are located directly below the welding wire conveying mechanism (7). The L-shaped support rod (5) is installed on the lifting mechanism (8) through a fastener. The horizontal section of the L-shaped support rod (5) is provided with the welding gun (6).

2. An apparatus for automatic butt welding of the end of a pipe processing strip coil as defined in claim 1, characterized in that: The horizontal moving mechanism (3) includes a crossbeam (301), a first lead screw (302), a guide rail (302), a sliding plate (303), a first motor (304), and a first sliding block (305). The crossbeam (301) is installed at the end of the mounting plate (2). The first lead screw (302) is installed on the crossbeam (301) through a bearing seat. The mounting plate (2) is provided with the first motor (304) at the side end. The first motor (304) is in transmission connection with the first lead screw (302). The crossbeam (301) is provided with the guide rail (302) on the upper side and the lower side. The sliding plate (303) is slidably installed on the guide rail (302) through the first sliding block (305) and is in threaded connection with the first lead screw (302).

3. An apparatus for automatic butt welding of the end of a pipe processing strip coil as defined in claim 2, characterized in that: The longitudinal adjusting mechanism (4) includes a first mounting seat (401), a first guide rod (402), a second lead screw (403), a first hand wheel (404), and a second sliding block (405). The lifting mechanism (8) includes a second mounting seat (801), a second guide rod (802), a third lead screw (803), a second hand wheel (804), and a third sliding block (805). The sliding plate (303) is provided with a connecting plate (306). The first mounting seat (401) is longitudinally installed on the connecting plate (306). The first mounting seat (401) is provided with two groups of first guide rods (402). The second lead screw (403) is installed on the first mounting seat (401) through a bearing and is provided at the end with the first hand wheel (404) located between the first guide rods (402). The second sliding block (405) is slidably installed on the first guide rod (402) and is in threaded connection with the second lead screw (403). The second sliding block (405) is vertically installed with the second mounting seat (801). The second mounting seat (801) is provided with two groups of second guide rods (802). The third lead screw (803) is installed on the second mounting seat (801) through a bearing and is provided at the end with the second hand wheel (804) located between the second guide rods (802). The third sliding block (805) is slidably installed on the first guide rod (402) and is in threaded connection with the third lead screw (803). The L-shaped support rod (5) is vertically installed on the third sliding block (805).

4. An apparatus for automatic welding of butt joint of coil ends of a steel pipe processing strip as claimed in claim 2 or 3, wherein: The welding wire conveying mechanism (7) comprises a second motor (701), a speed reducer (702), a U-shaped limiting plate (703), a driving wheel (704) and a limiting tube (705), the side of the sliding plate (303) is provided with a supporting plate (307), the second motor (701) and the speed reducer (702) are installed on the supporting plate (307), the second motor (701) is in transmission connection with the speed reducer (702), the top end of the speed reducer (702) is installed with the U-shaped limiting plate (703), two groups of driving wheels (704) for driving the welding wire to move are installed on the U-shaped limiting plate (703), the output shaft of the speed reducer (702) is in transmission connection with one group of driving wheels (704), the U-shaped limiting plate (703) is provided with limiting holes (7031) for the welding wire to pass through, and the limiting holes (7031) and the welding gun (6) are in communication through the limiting tube (705).

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