Large-diameter stainless steel pipe welding device

Abstract

The utility model discloses a large-caliber stainless steel pipe welding device, which relates to the technical field of stainless steel pipe welding and comprises a welding frame, a fixed seat is fixedly mounted below the welding frame, a movable seat is longitudinally and slidably sleeved on the outer wall of the top end of the fixed seat, and a positioning wheel is transversely and slidably mounted at the top end of the movable seat. The adjusting mechanism is arranged on the movable seat and the positioning wheel; the adjusting mechanism comprises a transmission unit and a limiting unit. By arranging the adjusting mechanism, when the distance between the multiple positioning wheels needs to be adjusted, the limiting block can be moved out of the limiting groove by applying outward pulling force to the rotating wheel, rotation limiting on the threaded rod can be relieved, at the moment, the rotating disc can be rotated to push the second rack to move, and then rotating force is applied to the rotating rod; the two transmission plates which are staggered up and down are close to or far away from each other, so that the position of the positioning wheel is adjusted; according to the design, the aim of rapidly adjusting the distance between the positioning wheels is achieved, and the working efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel pipe welding, in particular to a large-diameter stainless steel pipe welding device. Background Art

[0002] In the prior art, when welding large-diameter stainless steel pipes, mechanical automatic welding is generally used due to the large diameter of the stainless steel pipes. Before welding, the stainless steel pipes need to be hoisted onto a movable seat by a crane, and the stainless steel pipes are positioned by the positioning wheels on the movable seat so that the stainless steel pipes are kept below the welding gun. Due to the different diameters of the stainless steel pipes, the position of the positioning wheels needs to be adaptively adjusted each time welding is performed. Based on this, in order to facilitate the rapid positioning and support of stainless steel pipes of different diameters, the utility model proposes a large-diameter stainless steel pipe welding device. Utility Model Content

[0003] The purpose of the utility model is to provide a large-diameter stainless steel pipe welding device in order to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a large-diameter stainless steel pipe welding device, comprising a welding frame, a fixed seat is fixedly installed below the welding frame, a movable seat is longitudinally slidably sleeved on the top outer wall of the fixed seat, and a positioning wheel is transversely slidably installed on the top of the movable seat, characterized in that it also includes an adjustment mechanism arranged on the movable seat and the positioning wheel; the adjustment mechanism includes a transmission unit and a limit unit; the transmission unit is used to adjust the spacing between two positioning wheels of multiple groups symmetrically distributed; the limit unit is used to limit the movement of the transmission unit;

[0005] The transmission unit comprises a transmission plate, a rotating rod, a first bevel gear, a second bevel gear, a threaded rod, a second rack, and a rotating wheel; the transmission plate is fixed to the bottom end of the positioning wheel and extends to the interior of the movable seat, and the transmission plate is used to synchronously drive the positioning wheel to move laterally; the rotating rod is rotatably installed in the interior of the movable seat, and the rotating rod is used to give the transmission plate a thrust for lateral movement; the first bevel gear is fixed to one end of the rotating rod, and the outer wall of the first bevel gear is meshed and transmitted with a second bevel gear, and the first bevel gear is used to receive the rotation thrust from the second bevel gear; the second bevel gear is rotatably installed in the interior of the movable seat, and the second bevel gear is used to promote the first bevel gear to rotate; the threaded rod is threadedly connected to the interior of the movable seat, and the threaded rod is used to promote the longitudinal movement of the second rack; the second rack is longitudinally slidably installed in the interior of the movable seat and is rotatably connected to the end of the threaded rod, and the second rack is used to give the second bevel gear a rotation thrust; the rotating wheel is longitudinally slidably installed on the inner wall of the threaded rod and extends to the outside of the threaded rod to the outside of the movable seat, and the rotating wheel is used to drive the transmission block to rotate.

[0006] As a further solution of the utility model: the limiting unit includes a transmission block and a limiting block; the transmission block is fixed on the outer wall of the rotating wheel and extends to the inner wall of the threaded rod, and the transmission block is used to transmit the rotational force from the rotating wheel to the threaded rod; the limiting block is fixed on the outer wall of the rotating wheel and extends to the interior of the movable seat, and the limiting block is used to limit the rotation of the rotating wheel.

[0007] As a further solution of the utility model: the outer wall of the movable seat is provided with a limiting groove for inserting the limiting block, and there are multiple limiting grooves, which are distributed in a ring shape on the outer wall of the movable seat with the central axis of the rotating wheel as the axis.

[0008] As a further solution of the utility model: the inner wall of the threaded rod is formed with a sliding groove for the longitudinal movement of the transmission block, and the inner wall of the movable seat is formed with a thread groove matching the thread of the outer wall of the threaded rod.

[0009] As a further solution of the utility model: the conical surface and annular surface of the second bevel gear are both provided with tooth blocks, the outer wall tooth blocks of the conical surface of the second bevel gear are meshed with the first bevel gear, and the outer wall tooth blocks of the annular surface of the second bevel gear are meshed with the outer wall tooth blocks of the second rack.

[0010] As a further solution of the utility model: the two transmission plates corresponding to the two symmetrically distributed positioning wheels are of different heights, and the two transmission plates are symmetrically distributed up and down with the rotating rod as the center, a ring gear is fixed to the outer wall of the rotating rod located between the two transmission plates, and the end faces of the two transmission plates close to the rotating rod are formed with tooth blocks meshing with the ring gear on the outer wall of the rotating rod.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] By setting up an adjustment mechanism, when it is necessary to adjust the spacing between multiple positioning wheels, the limit block can be moved out of the limit groove by giving the rotating wheel an outward pulling force, and the rotation limit of the threaded rod can be released. At this time, rotating the turntable can push the second rack to move and then give the rotating rod a rotational force, so that the two transmission plates staggered up and down are close to or away from each other, thereby adjusting the position of the positioning wheels; this design achieves the purpose of quickly adjusting the spacing between the positioning wheels and further improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the adjustment mechanism of the utility model;

[0015] Figure 3 For the utility model Figure 2 A partial enlarged view of point A.

[0016] In the figure: 1, welding frame; 2, fixed seat; 3, movable seat; 4, positioning wheel; 5, adjusting mechanism; 501, transmission plate; 502, rotating rod; 503, first bevel gear; 504, second bevel gear; 505, threaded rod; 506, second rack; 507, rotating wheel; 508, transmission block; 509, limit block. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-Figure 3 In an embodiment of the utility model, a large-diameter stainless steel pipe welding device includes a welding frame 1, a fixed seat 2 is fixedly installed below the welding frame 1, a movable seat 3 is longitudinally slidably sleeved on the top outer wall of the fixed seat 2, and a positioning wheel 4 is transversely slidably installed on the top of the movable seat 3. It is characterized in that it also includes an adjustment mechanism 5 arranged on the movable seat 3 and the positioning wheel 4.

[0019] The adjustment mechanism 5 includes a transmission unit and a limiting unit; the transmission unit is used to adjust the distance between two symmetrically distributed positioning wheels 4; the limiting unit is used to limit the movement of the transmission unit.

[0020] The transmission unit includes a transmission plate 501, a rotating rod 502, a first bevel gear 503, a second bevel gear 504, a threaded rod 505, a second rack 506, and a rotating wheel 507; the transmission plate 501 is fixed to the bottom end of the positioning wheel 4 and extends to the inside of the movable seat 3, and the transmission plate 501 is used to synchronously drive the positioning wheel 4 to move laterally; the rotating rod 502 is rotatably installed inside the movable seat 3, and the rotating rod 502 is used to give the transmission plate 501 a lateral movement thrust; the first bevel gear 503 is fixed to one end of the rotating rod 502, and the outer wall of the first bevel gear 503 is meshed with the second bevel gear 504 for transmission, and the first bevel gear 503 is used to receive the rotation thrust from the second bevel gear 504 force; the second bevel gear 504 is rotatably installed inside the movable seat 3, and the second bevel gear 504 is used to push the first bevel gear 503 to rotate; the threaded rod 505 is threadedly connected to the inside of the movable seat 3, and the threaded rod 505 is used to push the second rack 506 to move longitudinally; the second rack 506 is longitudinally slidably installed inside the movable seat 3 and is rotatably connected to the end of the threaded rod 505, and the second rack 506 is used to give the second bevel gear 504 a rotational thrust; the rotating wheel 507 is longitudinally slidably installed on the inner wall of the threaded rod 505 and extends to the outside of the threaded rod 505 to the outside of the movable seat 3, and the rotating wheel 507 is used to drive the transmission block 508 to rotate, and the axial cross-section of the rotating wheel 507 is T-shaped.

[0021] The limiting unit includes a transmission block 508 and a limiting block 509; the transmission block 508 is fixed on the outer wall of the rotating wheel 507 and extends to the inner wall of the threaded rod 505, and the transmission block 508 is used to transmit the rotational force from the rotating wheel 507 to the threaded rod 505; the limiting block 509 is fixed on the outer wall of the rotating wheel 507 and extends to the interior of the movable seat 3, and the limiting block 509 is used to limit the rotation of the rotating wheel 507; the conical surface and the annular surface of the second bevel gear 504 are both provided with tooth blocks, the outer wall tooth block of the conical surface of the second bevel gear 504 is meshed with the first bevel gear 503, and the outer wall tooth block of the annular surface of the second bevel gear 504 is meshed with the outer wall tooth block of the second rack 506.

[0022] The two transmission plates 501 corresponding to the two symmetrically distributed positioning wheels 4 have different heights, and the two transmission plates 501 are symmetrically distributed up and down with the rotating rod 502 as the center. A ring gear is fixed to the outer wall of the rotating rod 502 located between the two transmission plates 501, and the end faces of the two transmission plates 501 close to the rotating rod 502 are formed with tooth blocks that mesh with the ring gear on the outer wall of the rotating rod 502.

[0023] In this embodiment: the stainless steel pipe to be welded can be hoisted to the top of the movable seat 3 by a crane, the pipe can be centered by the positioning wheel 4 above the movable seat 3, the movable seat 3 with the pipe can be pushed to move by the rollers provided on the fixed seat 2, so that the end of the pipe can be moved to the bottom of the welding gun of the welding frame 1, and the pipe can be welded by the welding gun provided on the welding frame 1. It should be pointed out that the positioning wheel 4 includes a rotating wheel body and a wheel body support seat, the rotating wheel body is rotatably mounted on the wheel body support seat, and the transmission plate 501 is fixedly connected to the bottom of the wheel body support seat.

[0024] When the diameters of the processed pipe materials are different, an outward pulling force can be given to the rotating wheel 507, and the rotating wheel 507 under force will synchronously drive the limit block 509 fixed on the outer wall to move, so that the limit block 509 is moved out of the limit groove opened on the outer wall of the movable seat 3 (it should be noted that: during the pulling process, the transmission block 508 is not separated from the threaded rod 505). Afterwards, a rotational force is given to the rotating wheel 507, and the rotating rotating wheel 507 transmits the rotational force to the threaded rod 505 through the transmission block 508, so that the threaded rod 505 rotates with the rotation of the rotating wheel 507, and the rotating threaded rod 505 will move longitudinally along the inner wall thread groove of the movable seat 3, and the longitudinally moving threaded rod 505 will synchronously push the second rack 506 rotatably connected at the end to move longitudinally, so that the tooth block on the outer wall of the second rack 506 gives a thrust to the outer wall tooth block of the second bevel gear 504 to rotate the second bevel gear 504, and the rotating second bevel gear 504 will synchronously give a rotational thrust to the first bevel gear 503, and the stressed first bevel gear 503 synchronously drives the rotating rod 502 to rotate, then the outer wall tooth block of the rotating rod 502 will give a thrust to the transmission plate 501 distributed on the outer wall of the rotating rod 502, so that the two transmission plates 501 are close to or away from each other, so that the positioning wheel 4 fixed to the transmission plate 501 moves synchronously, thereby adjusting the spacing between the positioning wheels 4. This design makes it easy for the spacing between the positioning wheels 4 to adapt to pipes of different specifications, so that the pipes are always kept in the center position, achieving the purpose of quickly adjusting the spacing between the positioning wheels 4 and further improving work efficiency.

[0025] It should be additionally explained that the transmission block 508 has a sufficient length, and the transmission block 508 always maintains a clamping state with the threaded rod 505 during the spiral movement of the threaded rod 505 .

[0026] Please refer to Figure 2-Figure 3 The outer wall of the movable seat 3 is provided with a limiting groove for the limiting block 509 to be inserted. There are multiple limiting grooves, which are distributed in a ring shape on the outer wall of the movable seat 3 with the central axis of the rotating wheel 507 as the axis. The inner wall of the threaded rod 505 is formed with a sliding groove for the longitudinal movement of the transmission block 508, and the inner wall of the movable seat 3 is formed with a threaded groove matching the thread of the outer wall of the threaded rod 505.

[0027] In this embodiment: through this structure, after the spacing adjustment of the positioning wheel 4 is completed, a thrust can be given to the rotating wheel 507. The stressed rotating wheel 507 will synchronously drive the transmission block 508 and the limit block 509 to move longitudinally. The longitudinally moving transmission block 508 will not drive the threaded rod 505 to rotate. At the same time, the limit block 509 will also enter a limit groove on the outer wall of the movable seat 3 to limit the rotating wheel 507 again, thereby ensuring that the position of the positioning wheel 4 will not move.

[0028] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A large-diameter stainless steel pipe welding device, comprising a welding frame (1), a fixed seat (2) is fixedly installed below the welding frame (1), a movable seat (3) is longitudinally slidably sleeved on the top outer wall of the fixed seat (2), and a positioning wheel (4) is transversely slidably installed on the top of the movable seat (3), characterized in that: It also includes an adjustment mechanism (5) arranged on the movable seat (3) and the positioning wheel (4); the adjustment mechanism (5) includes a transmission unit and a limit unit; The transmission unit comprises a transmission plate (501), a rotating rod (502), a first bevel gear (503), a second bevel gear (504), a threaded rod (505), a second rack (506), and a rotating wheel (507); the transmission plate (501) is fixed to the bottom end of the positioning wheel (4) and extends to the inside of the movable seat (3); the rotating rod (502) is rotatably mounted inside the movable seat (3); the rotating rod (502) is used to give the transmission plate (501) a lateral thrust; the first bevel gear (503) is fixed to one end of the rotating rod (502); the first bevel gear (503) is fixed to one end of the rotating rod (502); the second bevel gear (506) is fixed to the second bevel gear (507); The outer wall of the threaded rod (505) is meshed with a second bevel gear (504); the second bevel gear (504) is rotatably mounted inside the movable seat (3); the threaded rod (505) is threadedly connected inside the movable seat (3); the second rack (506) is longitudinally slidably mounted inside the movable seat (3) and is rotatably connected to the end of the threaded rod (505); the second rack (506) is used to give the second bevel gear (504) a rotational thrust; the rotating wheel (507) is longitudinally slidably mounted on the inner wall of the threaded rod (505) and extends to the outside of the threaded rod (505) to the outside of the movable seat (3).

2. A large-diameter stainless steel pipe welding device according to claim 1, characterized in that: The limiting unit comprises a transmission block (508) and a limiting block (509); the transmission block (508) is fixed on the outer wall of the rotating wheel (507) and extends to the inner wall of the threaded rod (505); the limiting block (509) is fixed on the outer wall of the rotating wheel (507) and extends to the interior of the movable seat (3).

3. A large-diameter stainless steel pipe welding device according to claim 2, characterized in that: The outer wall of the movable seat (3) is provided with a limiting groove for inserting the limiting block (509), and there are a plurality of limiting grooves, which are distributed in a ring shape on the outer wall of the movable seat (3) with the central axis of the rotating wheel (507) as the axis.

4. A large-diameter stainless steel pipe welding device according to claim 3, characterized in that: The inner wall of the threaded rod (505) is formed with a sliding groove for the transmission block (508) to move longitudinally, and the inner wall of the movable seat (3) is formed with a thread groove matching the thread of the outer wall of the threaded rod (505).

5. A large-diameter stainless steel pipe welding device according to claim 1, characterized in that: The conical surface and the annular surface of the second bevel gear (504) are both provided with tooth blocks, the outer wall tooth blocks of the conical surface of the second bevel gear (504) mesh with the first bevel gear (503), and the outer wall tooth blocks of the annular surface of the second bevel gear (504) mesh with the outer wall tooth blocks of the second rack (506).

6. A large-diameter stainless steel pipe welding device according to claim 1, characterized in that: The two transmission plates (501) corresponding to the two symmetrically distributed positioning wheels (4) have different heights, and the two transmission plates (501) are symmetrically distributed up and down with the rotating rod (502) as the center, and a ring gear is fixed to the outer wall of the rotating rod (502) located between the two transmission plates (501), and the end surfaces of the two transmission plates (501) close to the rotating rod (502) are formed with tooth blocks that mesh with the ring gear on the outer wall of the rotating rod (502).

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